JPH0139058B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an electromagnetic integrating calorimeter that integrates an electromagnetic flow rate measuring section and a calorific value calculation section consisting of an electronic circuit.

[Prior art]

Integrating calorimeters mainly calculate the amount of heat consumed by cold water and hot water, and instruct and transmit the integrated values. The amount of heat is calculated by multiplying by a predetermined coefficient, and its configuration includes a flow metering section, a calculation section, a temperature sensing section, and an instruction section that indicates the integrated value of the amount of heat.

Generally, a temperature sensor such as a thermometer may be used as the temperature sensor, and an electromagnetic counter may be used as the indicator, but the indicator may be built into the integrating calorimeter body, or it may be installed separately and electrically wired. In addition, it can be treated as an input/output device, and the main parts of the integrating calorimeter can be considered to be a flow metering section and a calculation section.

In addition, the calculation section is generally an electronic circuit device that accepts the flow rate and temperature as electrical input signals and calculates the amount of heat for reasons such as reliability. Flowmeters or partially modified versions of these flowmeters are used as integrating calorimeters.

However, in many cases where integrating calorimeters are applied to cold water or hot water as a fluid, it is used for air conditioning equipment in buildings, so foreign substances such as dirt in the piping, cutting powder during piping, slag during welding, etc. There is a lot of scale generated in the water during use and suspension periods, and the target maximum flow rate may be exceeded due to fluctuations in the circulating flow rate, etc., and the flow metering part of the product has a mechanical moving part. In this case, there is a drawback that problems tend to arise in durability.

For this reason, electromagnetic flowmeters, Karman vortex flowmeters, etc. were sometimes used as highly durable flowmeters without moving parts, but since these electronic flowmeters were industrial products, , when configuring an integrating calorimeter, it must be installed separately from the calculation section, and wiring work or adjustment work must be done on site. In addition, it has the disadvantage that it is extremely difficult to obtain a compact, lightweight, and low-cost system. ing.

In other words, since an electromagnetic flowmeter consists of a flow rate detector and a converter, when using it as the flow rate measuring section of an integrating calorimeter, first the converter and the calorific value calculation section are housed in one housing to make it compact. We must strive to reduce wiring costs and lower product prices.
This requires new design and preparation of jigs, etc., which results in higher costs.

Next, regarding the flow rate detector, in the case of a conventional electromagnetic flowmeter, the main component of the measuring tube is made into an electrical insulator by lining the inner wall, and the end of the tube is made into an electrical insulator. Due to the need for watertight piping connections, the lining must be continuous to the end side, and treatments must be applied to prevent peeling from the non-magnetic metal pipe and change in internal diameter over time, which tends to be expensive. Also, there are drawbacks such as difficulty in adopting a screw connection structure desired for small products.

In addition, excitation devices such as excitation coils and electromagnets whose relative position to the measurement tube is important are attached to the measurement tube via brackets fixed by welding, etc., which requires many steps to manufacture and is difficult to measure. When changing the cross-sectional area of the flow path depending on the range, not only the entire measurement tube but also the excitation device and the case that covers the whole must be newly designed, resulting in the disadvantage that parts cannot be shared.

Furthermore, in the case of the so-called top-mount type, in which the electromagnetic flowmeter converter is placed above the flow rate detector,
Because the case has to be divided into two parts above and below the measuring tube, the upper case and lower case have different shapes, so it is impossible to make them both the same shape and achieve mass production effects. is also occurring.

On the other hand, in recent years, in order to measure the amount of heat used in the water supplied to each consumer in a building, a small integrating calorimeter that is indoors and easy to maintain is required, and it is durable, has low pressure loss, and eliminates strainer cleaning work. , and the possibility of installing pipes in the ceiling, etc.
There is a growing demand for a lightweight and inexpensive electromagnetic calorimeter in which the flow metering section is electromagnetic and integrated with the calculation section.

[Summary of the invention]

The present invention aims to eliminate all of the drawbacks of the conventional technology and to completely satisfy the demands.The present invention consists of a casing made of a base plate and a cover made of sheet metal, and provides heat insulation to the inside of the casing. It is constructed by assembling parts and using a converter that is equipped with a shielding plate that has magnetic shielding properties so that electronic components that generate heat and leakage magnetic flux and electronic circuits can be housed in the same housing. This is an extremely effective detector that can be easily processed and assembled, resulting in reduced manufacturing costs. This provides the structure of an electromagnetic calorimeter.

〔Example〕

Hereinafter, details of the present invention will be explained with reference to figures showing examples.

Figure 1 shows the external appearance, with A being a front view and B being a side view, showing a converter 1 that houses a power transformer, an electronic circuit, etc., and a detector 2 that has connections for pipe connections on both sides. The two are connected by a pipe-shaped connecting part 14, and set screws 15a,
15b, but the setscrew 15
By screwing back a and 15b, the two can be attached and detached.

Figure 2 shows the converter 1, where A is a plan view of the cover with the ceiling removed, B is a front view with the main parts cut away, and C
is a side view of the cover with the side part removed;
The base plate 11 using a metal plate is formed by bending both side parts 13a and 13b from the bottom part 12 into a U-shape, and has a pipe-shaped connecting part protruding downward at approximately the center of the bottom part 12. 14 is fixed by welding or the like, and two setscrews 15a and 15b are screwed into this at a relative angle of about 90 degrees.
Connecting portion 14 to the connecting portion 16 of the detector indicated by the dashed line
After fitting from the outside, taper part 1 of connecting part 16
If the set screws 15a and 15b are screwed in until they are pressed against the set screws 15a and 7, since the tapered part 17 is formed from the top to the bottom, both the connecting parts 14 and 16 will not separate, and the set screws 15a , 15b eccentrically press the connecting portion 16 into the connecting portion 14, and the connecting portions 14 and 16 are completely fixed.

Note that knockouts 18 for piping are formed on the side surfaces 13a and 13b by punching.
Suitable for piping and wiring at installation sites.

Moreover, bracket parts 21a and 21b are fixed to the inner sides of the side parts 13a and 13b by welding or the like so as to face each other, and a protruding part 22 that protrudes inwardly therefrom.
A screw hole 23 is provided in the partition plate 31 made of an iron plate by means of a screw 24 that is screwed into the screw hole 23.
is fixed almost horizontally.

Therefore, the inside of the base plate 11 is partitioned almost horizontally by the partition plate 31, and a thermal and magnetic shedding effect occurs between the upper and lower parts of the partition plate 31, and the power transformer is connected to the bottom part 12. 41 and wiring boards 42a, 42b above the partition plate 31.
Even if an electronic circuit is provided for the converter and the calorific value calculation unit mounted on the power supply transformer 41, the heat generated from the power transformer 41 is reflected by the partition plate 31, and the leakage magnetic flux that also occurs is cut off by the partition plate 31. Therefore, it does not interfere with electronic circuits.

Note that the partition plate 31 has both side parts 13a, 13
Notches 32a, 32b for wiring between the inside of b
is formed, and the lead wire 43 is connected through this portion.
is inserted, and a plug 44 provided at the tip of the plug connects the receptacle 45 of the wiring boards 42a, 42b.
On the other hand, the notch 32
A heat dissipation fin 46 of the power transistor protrudes from the a side, and the notch 32a also functions as a cooling air passage.

In addition, a boss 33 is embedded in the partition plate 31, and wiring boards 42a and 42b are fixed by screws 34 and sleeves 35 that are screwed into the boss 33. ,
A nameplate 46 and a terminal plate 48a for external connection are fixed together with screws 47, while a terminal plate 48b for connecting wiring to an attached temperature sensor is provided on the right side of the wiring board 42b. is fixed.

Further, the upper and left and right open surfaces of the base plate 11 are covered by a cover 51 made of a metal plate that is applied from above, except for the outside of both side surfaces 13a and 13b, and screws 52 The cover 51 is locked.

FIG. 3 shows the details of the base plate 11, A is a plan view, B is an XY sectional view at A, and C is a broken side view of the main part.
Screw holes 15c and 15d are bored between holes 15b, while a reinforcing strip embossed 19 is provided on the bottom surface 12.
A is formed radially around the connecting part 14,
Corner punches 19B for reinforcement are also formed at the boundaries between the bottom surface 12 and both side surfaces 13a and 13b, and a circular punch 19C for mounting the power transformer 41 is formed on the bottom surface 12. ing.

Further, a metal fitting 20 having a chevron-shaped embossment 19D is fixed by welding or the like to the upper outer side of the side surface portion 13b, and a similar embossment (not shown in the figure) provided at an opposing portion of the cover 51 allows the cover 51 to be fixed. It is possible to seal it after installation.

FIG. 4 shows details of the bracket parts 21a and 21b, where A is a front view and B is an XY sectional view taken along A. The bracket part 21 made of sheet metal has symmetrical protrusions 22 at both ends. is formed by bending, and after punching from the top side,
A screw hole 23 is drilled, and the same bracket part 21 is used as the bracket parts 21a, 21b in FIGS. 2 and 3.

FIG. 5 shows the details of the partition plate 31, A is a plan view, B is an X-Y sectional view at A, and C is a side view. Bosses 33 having screws 36A are welded on all sides of the upper surface. The through holes 37 corresponding to the screw holes 23 of the bracket parts 21a, 21b are bored, and the side parts 13a, 1
Notches 32a, 32b are provided on the side opposite to 3b.
are formed parallel to each other, and an insulating material 38 indicated by a chain line is applied thereto.

Further, a downwardly bent portion 39 is formed on the left side, and a terminal plate 48a and a name plate 46 shown in FIG. 1 are fixed through screw holes 36B of this portion.

Therefore, according to the above configuration, it is possible to construct the converter 1 which is lightweight and inexpensive and has vibration resistance, and by removing the plug 44 and the screws 24, the partition plate 31 and the wiring boards 42a, 42b can be removed. It can be removed as a whole, making it easy to perform wiring work at the installation site, as well as maintenance, inspection, and adjustment of electronic circuits.

Note that the lead wire from the detector 11 is also connected to the connection part 1.
Since the transducer 1 and the detector 2 are pulled out through the through hole in the transducer 6 and connected by the plug 44, the transducer 1 and the detector 2 can be freely separated by screwing back the set screws 15a and 15b.

FIG. 6 shows the case of the detector 2 manufactured by die casting etc., A is a front view seen from the open surface,
B is a longitudinal sectional view, C is a rear view, D is a side view,
A semi-cylindrical connecting part 62 centered on the open side is formed above the box-like body 61 with an open side on one side. A tapered portion 63 is formed at an angle, and a protruding step portion 64 is formed on the open surface side.
This comes into contact during assembly and regulates the center of the detector housing, and the circumference of the open surface 6
5 is formed slightly lower than the protruding step portion 64 to facilitate interposition of a packing having a shape corresponding to the periphery 65.

Further, a through hole 67 for supporting a measuring tube to be inserted is bored approximately in the center of the side surface portion 66, and the periphery of the hole 67 is thick. protrudes in a planar manner and has a screw hole 68 bored therein, and serves as a mounting base portion 69 for attaching a connecting portion for connecting a pipe line to a measuring tube.

On the other hand, a support part 70 protrudes from the inside of the side part 66 toward the open surface side in order to support the core of the electromagnet. 71 is formed.

In addition, through-holes 72 are drilled on all sides of the periphery 65 from the open surface side to the side surface 66 side, making it possible to use screws and making the periphery 65 symmetrical. Positioning protrusions 73a, 73b and corresponding fitting holes 74a, 74b are formed at these positions, respectively.

Therefore, two cases of the same shape configured as described above are prepared, and the protrusions 73a, 73b and the fitting holes 74a, 7 correspond to the periphery 5.
4b is prepared, and the open surfaces of each case are brought into contact with each other via this gasket, and the projections 73a, 7 of one case are
3b into the fitting holes 74a and 74b of the other case, and the protrusion 73 of the other case.
a, 73b into the fitting holes 74a, 74 of one case.
b, and by inserting a screw into the through hole 72 and connecting them, a casing sealed watertightly by the packing is completed as an integral body.

FIG. 7 shows the assembly status of the detector 2 using the above-mentioned case, and FIG.
is a similar side view, in which the open surfaces of cases 101a and 101b, which are formed to have the same shape, face each other, are joined via a packing 102, and then a screw 1 is attached.
03 and nuts 104 in a watertight manner,
On both sides, connection parts 105a and 105b are provided with packings 106 and 107 according to the inner diameter of the pipe to be connected.
It is fixed in a water-tight manner with screws 108 via.

In addition, a coil 111 is provided in the outer iron core 110 having magnetic poles 109a and 109b facing each other.
a and 111b are wound, and these constitute an electromagnet 112, and magnetic poles 109a and 109
A measuring tube 113 is inserted between b, and both ends of these protrude into the connecting portions 105a and 105b, and a portion of the measuring tube 113 held between magnetic poles 109a and 109b is provided with an electric current generated by an electromagnet 112. Electrodes 114 are provided that face each other in a direction perpendicular to the direction in which magnetic flux passes,
The set screw 115 leads out the lead wire 1.
16a and 116b respectively form cases 101a and 116b.
It is drawn out from an outlet 117 provided above 101b.

However, in FIG. 7B, lead wires 116a ₁ and 116a ₂ from the left electrode 114, which are omitted in the figure,
are grooves 118a and 118b of magnetic poles 109a and 109b formed along the circumferential direction of measurement tube 113.
They are led symmetrically to the right through the inside and are commonly connected to the lead wire 116a, thereby reducing the induced noise component caused by the magnetic flux.

Note that the core 110 of the electromagnet 112 is
A lead wire 11 for fluid grounding and a common circuit is fixed to the support portion 70 protruding from the inner surface of the side surface of the 01b with a screw 120, and is led out from the support portion 70.
6c are lead wires 116a and 116b that derive an induced voltage signal proportional to the flow rate from each electrode 114.
After twisting together, the lead wires 116d and 116e are pulled out from the outlet 117, and the lead wires 116d and 116e transmit the excitation signals of the coils 111a and 111b.
In addition to being drawn out in the same way, cases 101a, 1
The inside of 01b is filled with a filler 121 having insulation and moisture-proofing properties.

In addition, the measuring tube 113 is inserted closely into the outer tube 201, which is made of a non-magnetic material such as stainless steel and has a predetermined mechanical strength. 105b
The inner tube 202 is made of an insulating material and has an internal cross section corresponding to the inner diameter of the pipe line connected to the inner tube 202, and the total length of the inner tube 202 is defined as protruding from both ends of the outer tube 201. Both ends of the inner tube 202 are further connected to the connecting portion 105 than both ends of the outer tube 201.
Watertightness is maintained by O-rings 123a, 123b that protrude into the enlarged step portions 122a, 122b of the a, 105b, come into contact with them, and are fitted as a seal ring to the outer circumference of the O-rings 123a, 123b. It is designed to prevent infiltration.

In addition, the outer tube 201 includes magnetic poles 109a and 109.
A through hole 20 for leading out the electrode is provided at the mutually opposing portions between b.
3 are bored in each case, and a mounting hole 204 for the electrode 114 is formed in a portion of the inner tube 202 corresponding to the through hole 203.
The electrode 114 is attached as described later.

8 and 9 are detailed views of the inner tube 202, in which A is a front view, B is a vertical sectional view, and C is a vertical sectional view.
is a horizontal cross-sectional view, and D is an XY cross-sectional view at C. The one in Figure 8 has a nominal inner diameter of 25φ of the connected pipe, and the one in Figure 9 has a similar inner diameter with a nominal nominal diameter. A constriction portion 205 with a small inner diameter is formed inside the inner tube 202 for the purpose of adjusting the liquid flow rate within the inner tube 202 appropriately depending on the flow rate of the flowing liquid.

In addition, the mounting holes 204 include through holes 206 that are individually provided in the outer walls facing each other on the diametrical line, and
It consists of an angular housing hole 207 formed outward with a larger inner diameter, into which each member constituting the electrode 114 is inserted as described later.

In addition, in the axial direction part including the through hole 206, a flat part 208 is formed for convenience of molding, and in FIG. 8, a flange 209 is formed on the outer surface except for both ends.
These outer peripheries are in close contact with the inner surface of the outer tube 201, transmitting radial liquid pressure to the outer tube 201, and improving output resistance.

FIG. 10 is an enlarged sectional view of the electrode 114, and A
B is the inner tube 202 in FIG. 8, and B is the inner tube 20 in FIG. 9.
2 is used, and when assembling, first insert the O-ring 211 into the mounting hole 204 of the inner tube 202, and then insert the metal electrode tip 212. The angular flange portion 214 is exposed to the O-ring 21.
1 into the accommodation hole 207, and then has a through hole 221 approximately in the center,
In addition, a spacer 222 made of an insulating material and having a height corresponding to the inner thickness of the inner tube 202 is attached to the flange portion 214.
When the spacer 222 is inserted outwardly, the outer surface of the spacer 222 substantially coincides with the outer peripheral surface of the inner tube 202.

In this state, insert the inner tube 202 into the outer tube 201 and connect the attachment hole 204 and the through hole 201 of the outer tube 201.
3, the bushing part 232 of the bushing 231 made of an insulating material is made to protrude into the through hole 203, and the contact part 233, which has a shape corresponding to the outer circumferential surface of the outer tube 201, is aligned with the outer circumference of the outer tube 201. If it is brought into contact with the surface, the periphery of the outer peripheral surface of the through hole 203 will be in contact with the contact portion 23.
3, and the mounting direction of the bush 231 is automatically regulated.

Next, insert a set screw 115 with a length corresponding to the wall thickness of the inner tube 202 into the bushing part 232 of the bushing 231.
The electrode chip 2 is
12 and then screwed into the screw hole 215 of the electrode chip 212, the whole is completely fixed and the O-ring 211 maintains watertightness.

Note that when inserting the screw 115, the lug terminal 24
If you insert 1a and 241b, the button 23
Guide groove 23 for the lead wire along the circumferential direction of 1
Lug terminals 241a, 241b into 5a, 235b
The leading ends of the lead wires 116a 1 and 116a ₁ shown in FIG.
116b ₂ or lead wire 116b.

The assembly of the measuring tube 113 is completed through the above steps.
Next, when the skirt portion 252 of the supporter 251 made of an insulating material is fitted along the axial direction of the set screw 115 from the outside of the bush 231, the protrusion 253 of the supporter 251 moves in the opposite direction from the bush 231 to the set screw 115. It will protrude in line with the axis of.

Therefore, the outer side part 301 of the core 110 is divided approximately from the center, and a cutout part 302 having a shape corresponding to the protrusion part 253 is formed at the center of the outer side part 301, so that the measurement tube 113 and the magnetic poles 109a, 109b are separated. If they are combined facing each other, the protrusion 253 of the supporter 251 is accommodated and supported by the notch 302, and at the same time, since the outer surface 254 of the supporter 251 almost coincides with the inner surface of the outer side 301, it is difficult to measure. Since the mounting position and mounting angle of the tube 113 are regulated and the protrusion 253 is housed in a direction perpendicular to the magnetic flux passing through the measuring tube 113, the relative angle of the electrode tip 212 with respect to the magnetic flux is also the same.

Note that the lead wires 116a ₁ , 11 shown in FIG. 7B
The lead wires _116a , 116b are wired through the notches 255a, 255b provided in the circumferential direction of the supporter 251, and the lead wires 116a, 116b are wired through the protrusion 25.
Through hole 256 in 3 and notch 3 in core 110
02.

FIG. 11 is a detailed view showing the electrode chip 212, and FIGS. 12 and 13 are detailed views showing the spacer 222.
In each case, A is a front view and B is a side cross section. In FIG. It has a columnar shape, and an angular flange portion 214 is formed on the rear end side, and the inner tube 2
The flange part 2 is compatible with the accommodation hole 207 of 02.
Insert the set screw 115 into the screw hole 215 drilled on the 14 side.
When screwed in, it exhibits a rotation-stopping effect.

In addition, in FIGS. 12 and 13, the spacer 222 is formed into an angular shape corresponding to the accommodation hole 207 of the inner tube 202, and a through hole 221 is formed approximately in the center of the spacer 222.
The outer surface portion 223 that coincides with the outer circumferential surface of the inner tube 202 is formed as a curved surface that is the same as the outer circumferential surface of the inner tube 202, and has an overall height h.
is determined according to the wall thickness of the inner tube 202, and a height h ₁ is used in FIG. 10A, and a height h ₂ is used in FIG. 10B.

FIG. 14 is a detailed view of the bush 231, and FIG. 15 is a detailed view of the supporter 251, in which A is a front view;
B is a side view, and C is a cross-sectional view. In FIG. 14, the entire body is formed into a disk shape, and a contact portion 233 is formed on the lower surface side as a curved surface that is the same as the outer peripheral surface of the outer tube 201. A bushing portion 232 that protrudes downward from approximately the center of the bushing portion 232 and fits into the through hole 203 of the outer tube 201 is formed.

Further, a through hole 234 is bored including the bushing portion 232, and the through hole 234 is formed along the circumferential direction of the outer tube 201 defined by the abutment portion 233.
The guide grooves 235a, 23 are arranged symmetrically about 4.
5b is formed.

In FIG. 15, the entire body is formed into a cap shape, and a skirt portion 252 is formed with an inner diameter corresponding to the outer diameter of the bush 231, and a portion 257 of the skirt portion 252 facing the outer tube 201 is formed as a cap. The cut portions 255a and 255b are formed symmetrically along the circumferential direction of the outer tube 201, which is formed as a curved surface that is the same as the outer circumferential surface, and defined by this.

In addition, the outer surface portion 25 connected to the skirt portion 252
4, a rectangular cylindrical protruding part 253 having a through hole 256 corresponds to the opposing part 257 and is connected to the outer tube 2.
It is formed to match the diameter line of 01.

Therefore, cases 101a and 10 of the same shape
By using 1b, it is possible to reduce the cost of die-casting molds and the like and the processing man-hours, and it is also easy to reduce the price due to the mass production effect, and it is also easy to assemble the detector, thereby realizing a reduction in the assembly man-hours.

In addition, with a simple and inexpensive configuration, the electrode 114
and measurement tube 113 are obtained, and electromagnet 1
12, and by assembling each member in a predetermined order, the mutual relationship between the parts is naturally regulated, and the accuracy of flow rate detection is improved.
By replacing parts such as 5b, it can be adapted to pipes with various inner diameters, so most of the parts can be shared, and costs can be easily reduced through mass production.

However, the shape of the base plate 11 is not limited to the rectangular shape, and can be arbitrarily selected depending on the conditions.
A heat insulating material etc. may be attached to the bracket part 21.
The same effect can be obtained even if the two protrusions 22 are not provided on a and 21b, and the bracket is separated for each protrusion 22.

Further, the shape shown in FIG. 6 can be arbitrarily selected according to the situation, and the connecting portion 62 may be shaped like a half-width cylinder, or the supporting portion 70 may be extended from the side wall and shaped like a step. The portions 73a and 73b may not be cylindrical but may be prismatic or protruding, and the shapes of the fitting holes 74a and 74b may be determined accordingly.

In addition, the outer tube 201 and the inner tube 202 may not be circular tubes, but may have other cross-sectional shapes.
The same effect can be obtained even if the accommodation hole 207 of the supporter 251 is not made into an angular shape but is provided with a protrusion or notch to obtain a rotation-stopping effect. Various modifications are possible, such as the shape of .

〔Effect of the invention〕

As is clear from the above description, according to the present invention, an electromagnetic calorimeter that is lightweight, easy to maintain, inspect, and adjust with a simple and inexpensive configuration can be obtained, and therefore is suitable for indoor use or similar applications. A remarkable effect can be obtained in calorimetric measurement.

[Brief explanation of drawings]

The figures show an embodiment of the present invention, FIG. 1 is an external view, A is a front view, B is a side view, FIG. 2 is a converter, and A is a plan view with the ceiling of the cover removed. In the figures, B is a front view with the main part broken away, C is a side view of the cover with side parts removed, Figure 3 is a diagram showing details of the base plate, Figure 4 is a diagram showing details of the bracket, and Figure 5 is a diagram showing details of the bracket. Figure 6 shows the details of the partition plate, Figure 6 shows the detector case, A is the front view, B is the vertical sectional view, C is the rear view, D is the side view, and Figure 7 is the assembly status of the detector. , A is a front view with a main part broken, B is a similar side view, FIGS. 8 and 9 show details of the inner tube, A is a front view, B is a vertical sectional view, C is a horizontal sectional view, D is an XY sectional view at C, FIG. 10 is an enlarged sectional view of the electrode, FIG. 11 is a detailed view of the electrode chip, FIGS. 12 and 13 are detailed views of the spacer, and FIG. 14 is a detailed view of the bushing. FIG. 15 is a detailed view of the supporter. 1...Transducer, 2...Detector, 11...Bedplate,
12...Bottom part, 13a, 13b...Side part, 1
4... Connecting part, 21a, 21b... Bracket part, 22... Protruding part, 23... Screw hole, 24...
Screw, 31... Partition plate, 32a, 32b... Notch, 41... Power transformer, 42a, 42b... Wiring board, 51... Cover, 61... Box-shaped body, 62
...Connection part, 63...Tapered part, 65...Surroundings,
66...Side part, 67...Through hole, 70...Support part, 73a, 73b...Protrusion part, 74a, 74b
...Fitting hole, 101a, 101b...Case, 1
02...Packing, 105a, 105b...Connection part, 109a, 109b...Magnetic pole, 111a, 1
11b...Coil, 112...Electromagnet, 113...
...Side fixed tube, 114...Electrode, 116a to 116e
...Lead wire, 123a, 123b...O ring, 201...Outer tube, 202...Inner tube, 203...
...Through hole, 204...Mounting hole.

Claims (1)

[Claims] 1. A base plate having both sides formed in a U-shape from the bottom part and having a pipe-shaped connecting part protruding downward from the bottom part, and a base plate having a screw hole protruding from the inside of both side parts facing each other. A bracket section equipped with
a partition plate fixed to the bracket part with screws, partitioning the inside of the base plate substantially horizontally and having a notch for wiring between the inside of the both side parts;
A wiring board equipped with electronic circuits for a conversion section and a calorific value calculation section for the electromagnetic flow metering section provided on the upper surface side of the partition plate, a cover that covers the open surface excluding the outside of both side surfaces of the base plate, and the connection a transducer consisting of at least two setscrews screwed into the same horizontal plane from the outside of the part; an outer tube made of a non-magnetic tubular body; and a transducer inserted into the inside of the outer tube and facing each other. An upper part of a box-like body with an open side on one side, and an inner tube made of an insulating material with each end having an electrode on the inner wall surface and having both ends protruding beyond both ends of the outer tube. a semi-cylindrical connecting part that is formed to protrude from above and has a tapered part on the outer circumferential surface that slopes from above to below and inward; and a through hole for supporting the measuring tube provided in a side part of the box-shaped body. A casing formed by inserting the end of the measurement tube into the through hole from the open surface side and abutting the open surfaces against each other using two cases having two cases; a connection part for connecting piping that is individually fixed to the outer surface of each through hole of each of the cases, which has an abutting enlarged step part therein; and a connection part for connecting piping that is individually fixed to the outer surface of each of the through holes of each of the cases, and a connecting part for connecting pipes that extends from the outer enclosure to each of both ends of the inner pipe that protrudes from both ends of the outer pipe. A detector configured with a fitting seal ring is combined, and a lead wire that sends an excitation signal to the detector, an induced voltage signal proportional to the flow rate detected by the detector, and a lead wire that connects the fluid ground. An electromagnetic integrating calorimeter, characterized in that it is connected to a converter, the connecting portions are fitted together, and then fixed by the set screw.