JP6263731B2 - Liquid mixing device and hot water storage water heater provided with the same - Google Patents

Description

  The present invention relates to a liquid mixing apparatus and a hot water storage type water heater provided with the same.

  FIG. 4 is a configuration diagram showing a configuration of a conventional hot water storage type hot water heater (see, for example, Patent Document 1). As shown in FIG. 4, this type of hot water storage type hot water heater is conventionally composed of a heat source unit 110 such as a heat pump unit and a hot water storage unit 100, and water is supplied to the hot water storage tank 101 and the hot water storage tank 101 inside the hot water storage unit 100. A water supply pipe 102 to be supplied, a circulation pump 104 for supplying water from the lower part of the hot water storage tank 101 to the heat source unit 110, and a circulation water channel 105 for supplying high temperature water heated by the heat source unit 110 to the upper part of the hot water storage tank 101 are provided. Yes.

  The hot water supply circuit includes a hot water discharge pipe 107 for taking out high temperature water from the upper part of the hot water storage tank 101, and a mixing valve body for mixing the high temperature water from the hot water storage tank 101 and the water from the water supply pipe 102 to a predetermined temperature. A first liquid mixing device 108 for supplying hot water is provided for supplying hot water to a hot water supply terminal 103 such as a faucet. The bath circuit has a built-in mixing valve body that mixes high-temperature water from the hot water storage tank 101 and water from the water supply pipe 102 at a predetermined temperature, and a second bath bath that supplies hot water at a predetermined temperature to the bathtub 106. A liquid mixing device 109 is provided.

  In addition, as a conventional liquid mixing device, there is a device in which a hot water inflow path and a water inflow path are arranged to face each other via a mixing valve body (see, for example, Patent Document 2).

JP 2007-139345 A JP 2012-7646 A

  However, in the conventional configuration, the hot water inflow path and the water inflow path are arranged to face each other through the mixing valve body. Therefore, particularly when the flow rate of hot water supplied to the hot water supply terminal is small, It was difficult to mix and had the subject that hot water supply temperature became unstable.

  The present invention solves the above-described conventional problems, and an object thereof is to provide a liquid mixing apparatus capable of making the temperature of the mixed fluid uniform and a hot water storage type water heater provided with the liquid mixing apparatus.

In order to solve the conventional problems, the liquid mixing apparatus of the present invention includes a mixing valve body (6a, 6b) for adjusting a mixing ratio of the first liquid and the second liquid, and the first liquid is the mixing valve. body (6a, 6b) first liquid inlet passage flows into (2a, 2b) and said second liquid is the mixing valve body (6a, 6b) a second liquid inlet passage flows into the (3a, 3b), A driving device (5a, 5b ) for driving the mixing valve body (6a, 6b) , and a mixed liquid outlet channel (4a, 4b) through which the liquid mixed in the mixing valve body (6a, 6b) flows out; a a plurality each of said plurality of first liquid inflow channel (2a, 2b) and said plurality of second liquid inflow channel (3a, 3b) and, but first liquid bifurcation shunting said first liquid (10) second liquid bifurcation shunting said second liquid and at (11) connected having a (40), respectively And a first liquid flow path formed by being continued (71, 81) and the second liquid flow path (72, 82), said first liquid flow path (71, 81) and said second liquid the flow path (72, 82), the plurality of mixing valve bodies (6a, 6b) are arranged so as to be parallel across the mixed liquid outlet passage of multiple (4a, 4b) is The first liquid flow path (71, 81) and the second liquid flow path (72, 82) are disposed on different sides or the same side.

  Thereby, a liquid mixing apparatus can be reduced in size.

  ADVANTAGE OF THE INVENTION According to this invention, the liquid mixing apparatus which can mix a liquid uniformly can be provided.

(A) Perspective view of the liquid mixing device in Embodiment 1 of the present invention (b) Cross-sectional view in a plane parallel to the two inflow channels of the liquid mixing device (c) Vertical to the two inflow channels of the liquid mixing device And a sectional view in a plane parallel to the outlet channel (A) Perspective view of the composite of the liquid mixing apparatus (b) AA sectional view of FIG. 2 (a) Schematic configuration diagram of a hot water storage type water heater equipped with the liquid mixing device Schematic configuration diagram of a conventional hot water storage type water heater

The first aspect of the invention is a mixing valve body (6a, 6b) for adjusting the mixing ratio of the first liquid and the second liquid, and the first liquid in which the first liquid flows to the mixing valve body (6a, 6b) . The inflow path (2a, 2b) , the second liquid inflow path (3a, 3b) through which the second liquid flows to the mixing valve body (6a, 6b) , and the mixing valve body (6a, 6b) are driven. A plurality of drive devices (5a, 5b) and a plurality of mixed liquid outlet channels (4a, 4b) through which the liquid mixed by the mixing valve bodies (6a, 6b) flows out, the plurality of first liquid inflows The passage (2a, 2b) and the plurality of second liquid inflow passages (3a, 3b) include a first liquid branch portion (10) for diverting the first liquid and a second liquid branch for diverting the second liquid. part (11) and at a connection member (40) having a first liquid flow path formed by being connected (7 , 81) and the second liquid flow path (72, 82) and having a first liquid flow path (71, 81) and said second liquid flow path (72, 82) and, said plurality of mixing valve body (6a, 6b) are arranged so as to be parallel across the mixed liquid outlet passage of multiple (4a, 4b) is, the first liquid flow path (71, 81) and the first The liquid mixing apparatus is characterized in that the two liquid flow paths (72, 82) are disposed on different sides or the same side.

  Thereby, a liquid mixing apparatus can be reduced in size.

The second invention includes a liquid mixing apparatus of the first aspect of the invention, the hot water storage tank (32) for storing hot water, the hot water storage tank heat source unit for heating hot water reserved in the (32) (30), the This is a hot water storage type hot water supply device.

  Thereby, the high temperature water stored in the hot water storage tank and the low temperature water supplied from the water supply source can be mixed uniformly.

  Moreover, the high temperature water stored in the hot water storage tank and the medium temperature water stored in the hot water storage tank can be uniformly mixed.

  In particular, even when the flow rate of hot water supplied to the hot water supply terminal is small, the temperature of hot water (hot water supply temperature) can be stabilized, and a hot water storage type hot water supply device excellent in safety and comfort can be provided.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1A is a perspective view of a liquid mixing apparatus according to Embodiment 1 of the present invention, and FIG. 1B is a cross-sectional view of a plane parallel to two inflow paths of the liquid mixing apparatus.

  FIG.1 (c) is sectional drawing in the surface perpendicular | vertical to two inflow paths of the liquid mixing apparatus, and parallel to a mixing liquid exit flow path.

  In the present embodiment, a case where the liquid mixing device is arranged in a hot water storage type hot water supply device will be described.

  As shown in FIGS. 1A to 1C, the liquid mixing device 1 is a mixture for mixing hot water (first fluid) and low temperature water (second fluid) to generate hot water of a predetermined temperature. A valve body 6, a hot water inflow passage (first inflow passage) 2 for supplying high-temperature water to the mixing valve body 6, a water inflow passage (second inflow passage) 3 for supplying low-temperature water to the mixing valve body 6, and mixing A driving device 5 that drives the valve body 6 and a mixed water outlet channel (mixed liquid outlet channel) 4 through which the mixed fluid flows out are provided.

  As shown in FIG. 1B, the mixing valve body 6 is formed in a cylindrical shape, and has an opening that opens to the hot water inflow passage 2 and the water inflow passage 3 on the side surface thereof. The mixing valve body 6 is connected to a driving device 5 including a stepping motor and a transmission mechanism (gear), and is rotated about the z axis shown in FIG. 1C by the driving device 5. When the mixing valve body 6 rotates around the z axis, the opening area of the hot water inflow path 2 and the mixing valve body 6 and the opening area of the water inflow path 3 and the mixing valve body 6 are changed, so that And mixing ratio of low-temperature water. The hot and cold water that has flowed into and mixed through the opening of the mixing valve body 6 flows into the mixed water outlet channel 4 through the cylindrical mixing valve body 6.

  As shown in FIG. 1B, the mixing valve body 6 is arranged such that a part of its cylindrical side surface protrudes into the hot water inflow passage 2 and the water inflow passage 3. Thereby, the distance between the hot water inflow path 2 and the water inflow path 3 can be shortened, and the compact liquid mixing apparatus 1 can be realized. Moreover, since the cylindrical mixing valve body 6 protrudes into each inflow passage, the liquid flows so as to circulate around the mixing valve body, so that the generation of vortex is promoted, and high temperature water and low temperature water are separated. Uniform mixing is possible.

  The opening area of the opening of the mixing valve body 6 is preferably rotationally driven so that the downstream side in the liquid flow direction is always larger than the center (z axis) of the mixing valve body 6. Thereby, the cylindrical liquid flows so as to go around from the downstream side of the center of the mixing valve body 6. Therefore, the flow becomes a vortex and high temperature water and low temperature water can be mixed uniformly.

  The hot water inflow passage 2 and the water inflow passage 3 are arranged in parallel with the mixing valve body 6 interposed therebetween. Moreover, the hot water inflow passage 2 and the water inflow passage 3 are arranged so that the liquid flows from the same direction. Thereby, the liquid mixing apparatus 1 can be reduced in size.

  The hot water inflow passage 2 extends at least downstream from the center of the mixing valve body 6 in the liquid flow direction. Similarly, the water inflow passage 3 extends to the downstream side of the center of the mixing valve body 6 with respect to the liquid flow direction. As a result, the liquid flows around the mixing valve body 6 to form a vortex, and the mixing valve body 6 can uniformly mix the high-temperature water and the low-temperature water.

  The operation and action of the liquid mixing apparatus 1 configured as described above will be described below.

  The high temperature water flowing through the hot water inflow passage 2 and the low temperature water flowing through the water inflow passage 3 flow into the mixing valve body 6 in which the opening area of the opening is adjusted in order to supply a predetermined temperature. At this time, since the high temperature water and the low temperature water flow into the mixing valve body 6 while greatly changing the inflow direction, a vortex is formed.

  Thereby, the stirring effect | action of the high temperature water and low temperature water which joined by the mixing valve body 6 improves. In particular, the hot water inflow passage 2 and the water inflow passage 3 extend downstream from the center of the mixing valve body 6, and the opening area of the opening of the mixing valve body 6 is downstream of the center of the mixing valve body 6. Since the side is driven to be large, the liquid flows so as to go around the mixing valve body 6. Therefore, the formation of vortex is promoted and the stirring action of high temperature water and low temperature water is improved. The mixed water that has passed through the mixing valve body 6 reaches a predetermined temperature, passes through the mixed water outlet channel 4, and flows out of the liquid mixing device 1.

  As described above, the mixing valve body 6 for mixing high temperature water and low temperature water to generate hot water having a predetermined temperature, the hot water inflow passage 2 for supplying high temperature water to the mixing valve body 6, and the mixing valve body 6 And the hot water inflow passage 2 and the water inflow passage 3 are arranged in parallel via the mixing valve body 6, so that the mixing form of the hot water in the mixing valve body 6 is provided. It becomes a vortex and the stirring action is improved, and the temperature of the mixed liquid can be made uniform even when the liquid flow rate is small.

  Note that the hot water inflow passage 2 and the water inflow passage 3 may be arranged so that the liquid flow direction in the hot water inflow passage 2 and the liquid flow direction in the water inflow passage 3 face each other. Even if the flow directions are opposed, if the inflow paths are arranged in parallel via the mixing valve body 6, the mixing form in the mixing valve body 6 becomes a vortex, the stirring action is improved, and the liquid flow rate is low. Even in this case, the temperature of the mixed liquid can be made uniform.

  Next, a complex of a liquid mixing apparatus in which a plurality of liquid mixing apparatuses are integrated will be described. Fig.2 (a) is a perspective view of the composite body of a liquid mixing apparatus, FIG.2 (b) is AA sectional drawing of Fig.2 (a). In the present embodiment, a case where the complex of the liquid mixing device is arranged in a hot water storage type hot water supply device will be described.

  As shown in FIG. 2, the composite 7 of the liquid mixing apparatus in the present embodiment includes a first liquid mixing apparatus 1a and a second liquid mixing apparatus 1b, and a first liquid mixing apparatus 1a and a second liquid mixing apparatus 1b. A connecting body 40 is connected and separates the high-temperature water and the low-temperature water into the first liquid mixing apparatus 1a and the second liquid mixing apparatus 1b.

  The connection body 40 divides the high-temperature water flowing in from the high-temperature water supply port (first liquid supply port) 8 through which the high-temperature water flows and the high-temperature water supply port 8 into the first liquid mixing device 1a and the second liquid mixing device 1b. A hot water branching section (first liquid branching section) 10, a high temperature water branched by the high temperature water branching section 10 flows, a first hot water flow path 16 connected to the hot water inflow path 2 a of the first liquid mixing device 1 a, a high temperature The high temperature water branched by the water branch part 10 flows, and the 2nd hot water flow path 19 connected with the hot water inflow path 2b of the 2nd liquid mixing apparatus 1b is provided. The channel cross-sectional areas of the first hot water channel 16 and the second hot water channel 19 are formed to be larger than the channel cross-sectional area of the high-temperature water branching section 10.

  In addition, the connecting body 40 supplies the low temperature water supply port (second liquid supply port) 9 into which the low temperature water flows and the low temperature water flowing in from the low temperature water supply port 9 to the first liquid mixing device 1a and the second liquid mixing device 1b. A low-temperature water branching portion (second liquid branching portion) 11 to be diverted, a low-temperature water branched in the low-temperature water branching portion 11 flows, and a first water flow path 17 connected to the water inflow passage 3a of the first liquid mixing device 1a, The low-temperature water branched by the low-temperature water branching section 11 flows, and the second water flow path 20 connected to the water inflow path 3b of the second liquid mixing device 1b is provided. The channel cross-sectional areas of the first water channel 17 and the second water channel 20 are formed so as to be larger than the channel cross-sectional area of the low-temperature water branching portion 11.

  The first liquid mixing device 1a mixes the supplied high-temperature water and low-temperature water to a predetermined temperature, the mixing valve body 6a, the driving device 5a for driving the mixing valve body 6a, and the high-temperature water flowing from the connection body 40 Hot water inflow passage 2a flowing toward the valve body 6a, low temperature water flowing in from the connecting body 40, water inflow passage 3a flowing toward the mixing valve body 6a, mixed water outlet flow from which hot water mixed in the mixing valve body 6a flows out Road 4a is provided.

  The hot water inflow channel 2 a is connected to the first hot water channel 16 of the connection body 40 to form a high temperature water channel (first liquid channel) 71. The flow passage cross-sectional area of the hot water inflow passage 2 a is larger than the flow passage cross-sectional area of the first hot water flow passage 16. Further, the water inflow passage 3 a is connected to the first water passage 17 of the connection body 40, thereby forming a low-temperature water passage (second liquid passage) 72. The channel cross-sectional area of the water inflow channel 3 a is larger than the channel cross-sectional area of the first water channel 17.

  The second liquid mixing device 1b mixes the supplied high-temperature water and low-temperature water at a predetermined temperature, the mixing valve body 6b, the driving device 5b for driving the mixing valve body 6b, and the high-temperature water flowing in from the connection body 40 Hot water inflow passage 2b flowing toward the valve body 6b, low temperature water flowing in from the connecting body 40, water inflow passage 3b flowing toward the mixing valve body 6b, and mixed water outlet flow that flows out hot water mixed in the mixing valve body 6b Road 4b is provided.

  The hot water inflow passage 2 b is connected to the second hot water passage 19 of the connection body 40 to form a high temperature water passage (first liquid passage) 81. The flow passage cross-sectional area of the hot water inflow passage 2 b is larger than the flow passage cross-sectional area of the second hot water flow passage 19. In addition, the water inflow passage 3 b is connected to the second water passage 20 of the connection body 40, thereby forming a low-temperature water passage (second liquid passage) 82. The channel cross-sectional area of the water inflow channel 3b is larger than the channel cross-sectional area of the second water channel 20.

  From the above, the cross-sectional area of the flow path through which the high-temperature water flows gradually increases from the high-temperature water branching portion 10 toward the mixing valve body 6a and the mixing valve body 6b. In addition, the cross-sectional area of the flow path through which the low-temperature water flows gradually increases from the low-temperature water branching portion 11 toward the mixing valve body 6a and the mixing valve body 6b.

  Here, in the composite 7 of the liquid mixing device, the distance between the center of the high temperature water branching portion 10 and the center of the mixing valve body 6a is Lh1, and the center of the high temperature water branching portion 10 and the center of the mixing valve body 6b are When the distance between them is Lh2, Lh1 and Lh2 are formed to be substantially the same. Further, if the distance between the center of the low-temperature water branching portion 11 and the center of the mixing valve body 6a is Lb1, and the distance between the center of the low-temperature water branching portion 11 and the center of the mixing valve body 6b is Lb2, Lb1 And Lb2 are formed to be substantially the same. Further, the composite 7 of the liquid mixing apparatus is formed such that the distance Lh1, the distance Lh2, the distance Lb1, and the distance Lb2 are substantially the same. Thereby, in the composite body 7 of the liquid mixing device, the pressure loss of the hot water flowing from each branch portion toward each mixing valve body becomes uniform, and the temperature of the hot water mixed in each liquid mixing device is stabilized. Can be achieved.

  In the composite 7 of the liquid mixing device, the high-temperature water channel 71 and the low-temperature water channel 72 formed on the first liquid mixing device 1a side are arranged in parallel with the mixing valve body 6a interposed therebetween. Further, the mixing valve body 6 a is arranged so that a part thereof protrudes into the high temperature water channel 71 and the low temperature water channel 72.

  In the composite 7 of the liquid mixing device, the high-temperature water channel 81 and the low-temperature water channel 82 formed on the second liquid mixing device 1b side are arranged in parallel with the mixing valve body 6b interposed therebetween. Further, the mixing valve body 6 b is arranged so that a part thereof protrudes into the high temperature water channel 81 and the low temperature water channel 82.

  Hereinafter, the operation and action of the complex 7 of the liquid mixing apparatus configured as described above will be described.

  First, the operation of the first liquid mixing apparatus 1a will be described. The high temperature water supplied to the composite 7 of the liquid mixing device via the high temperature water supply port 8 is diverted at the high temperature water branching section 10 and supplied to the high temperature water flow path 71. Further, the low-temperature water supplied to the composite 7 of the liquid mixing device via the low-temperature water supply port 9 is divided at the low-temperature water branching section 11 and supplied to the low-temperature water flow path 72.

  The high-temperature water and low-temperature water that have flowed into the first liquid mixing device 1a flow into the mixing valve body 6a with the opening area of the opening adjusted to generate hot water having a predetermined temperature. The mixed hot water flows out of the first liquid mixing apparatus 1a through the mixed water outlet channel 4a.

  Next, the operation of the second liquid mixing apparatus 1b will be described. The high-temperature water supplied to the complex 7 of the liquid mixing device via the high-temperature water supply port 8 is divided at the high-temperature water branching section 10 and supplied to the high-temperature water flow path 81. The low temperature water supplied to the composite 7 of the liquid mixing device via the low temperature water supply port 9 is branched by the low temperature water branching section 11 and supplied to the low temperature water flow path 82.

  The high-temperature water and low-temperature water that have flowed into the second liquid mixing device 1b flow into the mixing valve body 6b in which the opening area of the opening is adjusted and are mixed in order to generate hot water having a predetermined temperature. The mixed hot and cold water flows out of the second liquid mixing apparatus 1b through the mixed water outlet channel 4b.

  Here, the composite 7 of the liquid mixing apparatus is formed such that the distances Lh1, Lh2, Lll1, and Ll2 are substantially the same. Accordingly, the pressure loss of the hot water flowing from the respective branch portions toward the respective mixing valve bodies can be made uniform in the composite 7 of the liquid mixing device. Even if it is performed simultaneously, the temperature of the hot and cold water mixed in each liquid mixing device can be stabilized.

  Further, in the first liquid mixing apparatus 1a, the high temperature water channel 71 and the low temperature water channel 72 are arranged in parallel via the mixing valve body 6a, and the mixing valve body 6a projects into the high temperature water channel 71 and the low temperature water channel 72. As a result, the mixing form of the hot water in the mixing valve body 6a becomes a vortex and the stirring action is improved. Therefore, the temperature of the mixed hot and cold water can be stabilized even when the flow rate of the liquid is small. The same applies to the second liquid mixing apparatus.

  In addition, the first liquid mixing device 1a and the second liquid mixing device 1b share the high-temperature water supply port 8, the low-temperature water supply port 9, the high-temperature water branching portion 10, and the low-temperature water branching portion 11 so that the first liquid mixing is performed. The apparatus 1a and the second liquid mixing apparatus 1b can be integrally configured via the connection body 40. Further, the mixing valve body 6a is protruded into the high-temperature water flow path 71 and the low-temperature water flow path 72, and the mixing valve body 6b is protruded into the high-temperature water flow path 81 and the low-temperature water flow path 82. Miniaturization and cost reduction can be achieved.

  Note that the composite 7 of the liquid mixing apparatus of the present embodiment has the mixed water outlet channel 4a and the mixed water outlet channel 4b formed on different sides across the high temperature water channel and the low temperature water channel. The mixed water outlet channel 4a and the mixed water outlet channel 4b may be arranged in the same direction.

  Moreover, in this Embodiment, although the diversion direction by the high temperature water branch part 10 and the low temperature water branch part 11 is made into 2 directions, you may divert toward the direction beyond it.

  Further, the orientation of the high-temperature water supply port 8 with respect to the high-temperature water branching portion 10 and the low-temperature water supply port 9 with respect to the low-temperature water branching portion 11 according to the present embodiment can be freely changed. The same effect as the form can be obtained.

  Next, a hot water storage type water heater provided with the liquid mixing device 1 and the composite 7 of the liquid mixing device will be described.

  FIG. 3 is a configuration diagram of a hot water storage type water heater provided with the composite 7 of the liquid mixing apparatus in the embodiment of the present invention.

  As shown in FIG. 3, the hot water storage type water heater in the present embodiment includes a heat source unit 30 such as a heat pump unit and a hot water storage unit 31.

  Inside the hot water storage unit 31, a hot water storage tank 32, a water supply pipe 33 that supplies water to the hot water storage tank 32, and a circulation pump 34 that supplies water from the lower part of the hot water storage tank 32 to the heat source unit 30 are arranged. A lower part of the hot water storage tank 32, the circulation pump 34, the heat source unit 30, and an upper part of the hot water storage tank 32 are annularly connected by piping to form a circulation water channel 35.

  The hot water storage tank 32 is connected to a hot water discharge pipe 36 through which high temperature water stored in the hot water storage tank 32 flows out. The other end of the hot water supply pipe 36 is connected to the first liquid mixing device 1a and the second liquid mixing device 1b. It is connected to the high-temperature water supply port 8 of the complex 7 of the liquid mixing apparatus provided. In addition, a water supply bypass pipe 33 a branched from the water supply pipe 33 is connected to the low-temperature water supply port 9 of the complex 7 of the liquid mixing apparatus.

  A hot water supply pipe 51 connected to a hot water supply terminal such as a currant 50 or a shower head is connected to the mixed water outlet channel 4a of the first liquid mixing apparatus 1a. A hot water supply circuit is formed by the hot water supply pipe 36, the water supply bypass pipe 33 a, the liquid mixing device composite 7, and the hot water supply pipe 51.

  A bath pouring pipe 61 for supplying hot water to the bathtub 60 is connected to the mixed water outlet channel 4b of the second liquid mixing apparatus 1b. The bath pouring pipe 61 is provided with a bath pouring valve 61 a that is configured to open and close the bath pouring pipe 61. A bath circuit is formed by the hot water discharge pipe 36, the water supply bypass pipe 33 a, the liquid mixing device composite 7, and the bath pouring pipe 61.

  Thereby, even when the flow rate of the hot water supplied to the hot water supply terminal is small, the stirring action of the hot water is improved by the first liquid mixing device 1a, and the hot water supply temperature can be stabilized.

  Further, even when hot water is supplied simultaneously to the hot water supply terminal and the bathtub, high temperature water and low temperature water supplied to the first liquid mixing device 1a and the second liquid mixing device 1b by the composite 7 of the liquid mixing device. The pressure loss of the flow can be made uniform, and the temperature of hot water mixed in the mixing valve body 6a and the mixing valve body 6b can be stabilized.

  In addition, the hot water storage type water heater in the present embodiment is configured to include the complex 7 of the liquid mixing device. Here, an intermediate temperature hot water discharge pipe (not shown) is provided for allowing the intermediate temperature water stored in the hot water storage tank 32 to flow out from the hot water storage tank 32 vertically below the connection point between the hot water storage tank 32 and the hot water discharge pipe 36. Also good. In the case where an intermediate temperature hot water discharge pipe is provided, a liquid mixing device 1 is further provided. Here, the medium hot water is hot water having a temperature lower than that of the high temperature water flowing out from the hot water pipe 36 and higher than that of the low temperature water supplied from the water supply pipe 33 to the lower part of the hot water storage tank 32. At this time, one end of the intermediate temperature hot water pipe is connected to the hot water storage tank 32, and the other end is connected to the hot water pipe 36 via the liquid mixing device 1. In this case, the other end of the hot water discharge pipe 36 having one end connected to the hot water storage tank 32 may be connected to the hot water inflow path 2, and the other end of the medium temperature hot water discharge pipe may be connected to the water inflow path 3. Furthermore, what is necessary is just to connect the other end of the tapping pipe 36 with one end connected to the composite 7 of the liquid mixing device to the mixed water outlet channel 4.

  As described above, the liquid mixing apparatus according to the present invention can uniformly mix liquids, and when liquids having different temperatures are mixed, the temperature of the mixed liquids can be made uniform. Since it can be made compact, it can be adapted to electric water heaters, gas, and oil water heaters.

1, 1a, 1b Liquid mixing device 2, 2a, 2b Hot water inflow path (first liquid inflow path)
3, 3a, 3b Water inflow path (second liquid inflow path)
4, 4a, 4b Mixed water outlet channel (mixed liquid outlet channel)
5, 5a, 5b Driving device 6, 6a, 6b Mixing valve body 7 Complex of liquid mixing device 8 High temperature water supply port (first liquid supply port)
9 Low temperature water supply port (second liquid supply port)
10 High-temperature water branch (first liquid branch)
11 Low-temperature water branch (second liquid branch)
16 1st hot water flow path 17 1st water flow path 19 2nd hot water flow path 20 2nd water flow path 30 Heat source unit 31 Hot water storage unit 32 Hot water storage tank 33 Water supply pipe 33a Water supply bypass pipe 34 Circulation pump 35 Circulation water path 36 Hot water discharge pipe 40 Connection body 50 currants (hot water supply terminal)
51 Hot water supply pipe 60 Bathtub (hot water supply terminal)
61 Bath Pouring Pipe 61a Bath Pouring Valve 71, 81 First Liquid Channel (High Temperature Water Channel)
72, 82 Second liquid channel (low temperature water channel)

Claims (2)

A mixing valve body (6a, 6b) for adjusting the mixing ratio of the first liquid and the second liquid;
A first liquid inflow passage (2a, 2b) through which the first liquid flows to the mixing valve body (6a, 6b) ;
A second liquid inflow passage (3a, 3b) through which the second liquid flows to the mixing valve body (6a, 6b) ;
A driving device (5a, 5b) for driving the mixing valve body (6a, 6b) ;
A plurality of mixed liquid outlet channels (4a, 4b) through which liquid mixed in the mixing valve bodies (6a, 6b) flows out,
The plurality of first liquid inflow passages (2a, 2b) and the plurality of second liquid inflow passages (3a, 3b) include a first liquid branching portion (10) for dividing the first liquid and the second liquid. The first liquid flow path (71, 81) and the second liquid flow path (72, 72 ) formed by being connected to each other in the connection body (40) having the second liquid branching portion (11) for dividing 82)
The first liquid channel (71, 81) and the second liquid channel (72, 82) are arranged in parallel with the plurality of mixing valve bodies (6a, 6b) in between. ,
The mixed liquid outlet channel of the multiple (4a, 4b) are arranged on different sides or the same side across the first liquid flow path (71, 81) and said second liquid flow path (72, 82) A liquid mixing apparatus. A liquid mixing device according to claim 1;
A hot water storage tank (32) for storing hot water,
And a heat source unit (30) for heating hot water stored in the hot water storage tank (32) .