JP3228276B2 - Drain water treatment equipment for heat exchange ventilation equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat exchange ventilator for supplying and exhausting air.

[0002]

2. Description of the Related Art A heat exchange ventilator has an air supply blower and an exhaust air blower, and a sensible heat exchanger for exchanging heat between an air supply flow and an exhaust flow between respective air circuits. When there is a temperature difference between the supply air flow and the exhaust flow, heat is exchanged and drain water is generated in the sensible heat exchanger. Therefore, a water receiving tray is provided below the sensible heat exchanger to drain the drain water. .

[0003]

However, in the above-mentioned conventional drain water treatment apparatus of the heat exchange ventilator, when the water receiving tray is located on the negative pressure side of the wind circuit, air is sucked from the drain outlet of the drain and the drain water is drained. Water cannot be drained until the drain head is removed. For this reason, there is a problem that the drain water accumulated in the water receiver is swept up in a fountain shape and scatters outside the water receiver in the wind circuit. When the water tray is located on the negative pressure side of the wind circuit, a drain water treatment device capable of smoothly discharging drain water has been required.

The present invention has been made to solve such a conventional problem, and has as its object to discharge drain water smoothly even when the water receiving tray is located on the negative pressure side of the wind circuit.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention has an air supply blower and an exhaust air blower, each of which is provided between a wind circuit for exchanging heat between an air supply flow and an exhaust flow. In a heat exchange ventilator having a heat exchanger and a water receiving tray for receiving dew condensation water from the sensible heat exchanger, wherein the water receiving tray is located on a negative pressure side in a wind circuit, a drain outlet of the water receiving tray is provided with a double drain outlet. With a pipe structure, the height of the inner pipe is set higher than the maximum water level of the drain water stored in the water receiving tray, and the upper part of the drain
A drain water treatment device for a heat exchange ventilator , in which a roof for preventing water splash is provided and the height of an inner pipe is made higher than the roof .

With the above structure, the inner pipe is higher than the water level of the drain water, so that only the air is sucked from the inner pipe, so that the path of air and water can be separated, and the drain water is discharged from the outer pipe. Further, the inner pipe plays a role of guiding the drain water, so that the drain water can be easily discharged. In addition, a water pan
Drain head can be removed due to surface tension when dry
Drain water is held around the drain outlet until drain water
Drain water accumulates in the upper part due to negative pressure
It is scooped up, out of the water receiving tray because it is blocked by the roof
Drain water can be discharged without being scattered
The drain water can be drained without being
Can be discharged.

[0007]

The invention according to claim 1 has an air supply blower and an exhaust air blower, and a sensible heat exchanger for exchanging heat between an air supply flow and an exhaust flow between respective wind circuits. In a heat exchange ventilator having a water receiving tray for receiving dew condensation water from the sensible heat exchanger, wherein the water receiving tray is located on a negative pressure side in a wind circuit, a drain outlet of the water receiving tray has a double tubular structure,
Make the height of the inner pipe higher than the maximum level of the drain water that accumulates in the water receiving tray, and install a roof to prevent water splashing above the drain outlet.
Heat exchange ventilation that the height of the inner pipe is higher than the roof
The present invention provides a drain water treatment device for the device.

According to this structure, the inner pipe is higher than the water level of the drain water, so that only the air is sucked from the inner pipe, so that the path of the air and water can be separated, and the drain water is discharged from the outer pipe. Further, the inner pipe plays a role of guiding the drain water, so that the drain water can be easily discharged. In addition, a water pan
Drain head can be removed due to surface tension when dry
Drain water is held around the drain outlet until drain water
Drain water accumulates in the upper part due to negative pressure
Even if it is scraped up, it will be blocked by the roof
Drain water can be discharged without being scattered
The drain water can be drained without being
Can be discharged.

According to a second aspect of the present invention, a U-shaped enclosure is provided above the drain outlet so as to surround the leeward side. According to this configuration, in a state where the water receiving tray is dry, when the drain water is held around the drain outlet until the drain head is taken off by the surface tension, the drain water is blown to the leeward side in the air supply side wind circuit. Even if it is done, the drain water can be discharged without being blocked by the U-shaped enclosure and scattered outside the water receiving tray.

According to a third aspect of the present invention, the height around the drain outlet is made lower than the other surface of the water receiving tray. According to this configuration, in a state where the water receiver is dry, when the drain water is held until the drain head is removed by the surface tension, the drain water does not accumulate on the entire surface of the water receiving tray and accumulates only around the drain outlet. The drain water can be discharged by the circuit without being scattered outside the water receiving tray.

According to a fourth aspect of the present invention, the leeward side and the leeward side of the drain outlet are formed integrally with each other, and the leeward side is made higher than the maximum level of the drain water accumulated in the water receiving tray. According to this configuration, the leeward side is higher than the water surface of the drain water, so that only the air is sucked from the leeward side, so that the path of the air and the water can be separated, and the drain water can be discharged from the leeward side. Drain water can be discharged without being scraped up, and the same effect as the double pipe structure according to claim 1 can be obtained in an integrated configuration.

An embodiment of the present invention will be described below with reference to the drawings.

Embodiment 1 FIG. 1 is a front view of a heat exchange ventilator according to the present invention.
FIG. 2A shows heat exchange ventilation according to the first embodiment of the present invention.
FIG. 2B is a perspective view of a drain water treatment device of the device, and FIG.

The heat exchange ventilator has an air supply blower 1 and an exhaust air blower 2, and a sensible heat exchanger 3 for exchanging heat between the supply air flow and the exhaust air flow between the wind circuits, respectively. Vessel 3
And a water receiving tray 4 for receiving the dew condensation water from the water source, and the water receiving tray 4 is located on the negative pressure side in the wind circuit. If there is a temperature difference between the supply air flow and the exhaust flow, heat is exchanged and drain water is generated in the sensible heat exchanger 3. Therefore, the water receiving tray 4 is disposed below the sensible heat exchanger, and the drain water is discharged through the drain outlet 5. Is discharged.

Here, since the water receiving tray 4 is located on the negative pressure side of the air supply side wind circuit and has a negative pressure of, for example, about 15 mmAq,
Outside air is sucked from the drain outlet 5 and the drain outlet 5
The drain water accumulated around the container is not discharged, and the drain water overflows into the water receiving tray 4.

Therefore, the drain outlet 5 of the water receiving tray 4 is formed in a double pipe structure in which a cylindrical inner pipe 9 and a cylindrical outer pipe 10 are positioned around the inner pipe 9. Is fixed at the joint 10. Here, the height of the inner pipe 9 is set higher than the level of the drain water accumulated in the water receiving tray 4. In addition, drainage
A roof 12 for preventing water from splashing is provided above the water outlet 5, and the inner pipe 9
The height is set higher than the water splash prevention roof 12.
You.

According to this configuration, since the inner pipe 9 is higher than the water level of the drain water, only the air is sucked from the inner pipe 9 so that the path of the air and water can be separated. Discharge. Further, the inner pipe 9 plays a role of guiding when drain water is discharged, which has an effect of facilitating drain water discharge. For this reason, the drain water can be discharged smoothly without being scooped up. Further
When the water receiving pan 4 is dry,
Drain water is maintained around the drain outlet 5 until the head is removed.
Drain water accumulates and drains upward due to negative pressure.
Water splash prevention roof 12 even if water is swept up in a fountain
It will not be scattered outside the water pan 4
Drain water can be discharged.

Although the double tube has been described as having a cylindrical shape, it may have a polygonal column shape.
Even if it is not positioned at the center of 0, it can be shifted to one side or brought into contact with the end of the outer tube to obtain the same effect.

Embodiment 2 FIG. 3 is a perspective view of a drain water treatment apparatus according to Embodiment 2 of the present invention. A U-shaped enclosure 13 is provided above the drain outlet 5 so as to surround the leeward side.

According to this configuration, when the water receiving tray 4 is in a dry state, the drain water is held around the drain outlet 5 until the drain head is taken off by the surface tension. The drain water can be discharged without being scattered out of the water receiving tray 4 by being blocked by the U-shaped enclosure 13 even if blown to the leeward side.

(Embodiment 3) FIG. 4 (a) is a perspective view of a drain water treatment apparatus according to Embodiment 3 of the present invention, and FIG. 4 (b) is a sectional view taken along the line CC of FIG. 4 (a). FIG. A step 14 is provided to make the height around the drain outlet 5 lower than the other surface of the water receiving tray 4.

According to this configuration, in a state where the water receiver is dry, when the drain water is held until the drain head is removed by the surface tension, the drain water does not collect on the entire surface of the water receiving tray 4 but collects only on the stepped surface 14. Therefore, drain water can be discharged without being scattered outside the water receiving tray 4 by the air supply side wind circuit.

(Embodiment 4) FIG. 5 (a) is a perspective view of a drain water treatment apparatus according to Embodiment 4 of the present invention, and FIG. 5 (b) is a cross section taken along line DD of FIG. 5 (a). FIG. The leeward side and the leeward side of the drain outlet 5 are stepped, and the leeward side is higher than the maximum level of drain water accumulated in the water receiving tray 4.

According to this configuration, since the leeward side is higher than the water level of the drain water, only the air is sucked from the leeward side, so that the path of the air and the water can be separated, and the drain water can be discharged from the leeward side. The drain water can be discharged without being scooped up, and the same effect as the double pipe structure according to claim 1 can be obtained in an integrated structure.

[0025]

As is clear from the above embodiment, the invention according to claim 1 has an air supply blower and an exhaust air blower, and the air supply flow and the exhaust flow exchange heat between the respective wind circuits. A sensible heat exchanger for receiving the condensed water from the sensible heat exchanger, and wherein the water pan is located on the negative pressure side in the wind circuit. The mouth has a double tubular structure, the height of the inner tube is higher than the level of the drain water accumulated in the water receiving tray, and the drain outlet is provided.
Install a roof to prevent water splashing at the top of the
It is intended to provide a drain water treatment device which is made higher .

According to this configuration, since the inner pipe is higher than the water level of the drain water, only the air is sucked from the inner pipe, so that the path of the air and water can be separated, and the drain water is discharged from the outer pipe.
In addition, the inner pipe plays a role of guiding the drain water, so that the drain water can be easily discharged, so that the drain water can be discharged without being scooped up. Furthermore, when the water pan is dry,
Drain water around the drain outlet until the drain head is removed
Is retained and drain water accumulates.
Even if the drain water is swept up like a fountain,
Drain water without splashing out of the water pan
It has the effect that it can be issued.

According to a second aspect of the present invention, a U-shaped enclosure is provided above the drain outlet so as to surround the area other than the windward side. According to this configuration, in a state where the water tray is dry, when the drain water is held around the drain outlet until the drain head is taken off by the surface tension, the drain water is blown to the leeward side due to the inside of the air supply side wind circuit. Even if it is done, there is an effect that drain water can be discharged without being blocked by the U-shaped enclosure and scattered outside the water receiving tray.

According to a third aspect of the present invention, the height around the drain outlet is made lower than the other surface of the water receiving tray. According to this configuration, in a state where the water receiver is dry, when the drain water is held until the drain head is removed by the surface tension, the drain water does not accumulate on the entire surface of the water receiving tray, but accumulates only around the drain outlet. There is an effect that drain water can be discharged without being scattered outside the water receiving tray by the air side wind circuit.

According to a fourth aspect of the present invention, the leeward side and the leeward side of the drain outlet are stepped, and the leeward side is higher than the level of the drain water accumulated in the water receiving tray. According to this configuration, the leeward side is higher than the water surface of the drain water, so that only the air is sucked from the leeward side, so that the path of the air and the water can be separated, and the drain water can be discharged from the leeward side. Drain water can be discharged without being scraped up, and the same effect as the double-pipe structure according to claim 1 can be achieved in an integrated configuration.

[Brief description of the drawings]

FIG. 1 is a front view of a heat exchange ventilator according to the present invention.

FIG. 2A is a perspective view of a drain water treatment apparatus according to Embodiment 1 of the present invention, and FIG. 2B is a cross-sectional view taken along line AA of FIG. 2A.

FIG. 3 is a perspective view of a drain water treatment apparatus according to a second embodiment of the present invention.

FIG. 4 (a) is a perspective view of a drain water treatment apparatus showing a third embodiment of the present invention, and (b) is a cross-sectional view taken along line CC of FIG. 4 (a).

FIG. 5 (a) is a perspective view of a drain water treatment apparatus showing a fourth embodiment of the present invention, and (b) is a sectional view taken along line DD of FIG. 5 (a).

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Air supply blower 2 Exhaust blower 3 Sensible heat exchanger 4 Water receiving tray 5 Drain water drainage port 6 Pre-filter 7 Pollen filter 8 NOx filter 9 Inner pipe 10 Outer pipe 11 Joint 12 Waterproof roof 13 Enclosure 14 uneven surface

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Hiroshi Arashima 1006 Kazuma Kadoma, Kadoma City, Osaka Inside Matsushita Electric Industrial Co., Ltd. (56) References JP-A-6-249454 (JP, A) Shokai Sho 62- 171309 (JP, U) JP 5-25215 (JP, U) JP 60-118428 (JP, U) JP 2 114821 (JP, U) (58) Fields surveyed (Int. Cl. ⁷ , DB name) F24F 1/00 361

Claims (4)

(57) [Claims] 1. A sensible heat exchanger for exchanging heat between an air supply flow and an exhaust air flow between a wind circuit and a condensed water from the sensible heat exchanger. In a heat exchange ventilator having a water receiving tray, wherein the water receiving tray is located on a negative pressure side in a wind circuit, a drain outlet of the water receiving tray has a double tubular structure, and the height of an inner tube is set in the water receiving tray. Above the maximum water level and above the drain outlet
A roof is provided to prevent water splashing, and the height of the inner pipe is higher than the roof.
Ku and drain water treatment apparatus for heat exchange ventilator, characterized in that the. 2. The heat exchange ventilation according to claim 1, wherein the leeward side of the upper part of the drain outlet is surrounded in a U-shape.
Equipment drain water treatment equipment. 3. The heat according to claim 1, wherein the height around the drain outlet is lower than the other surface of the water receiving tray.
Drain water treatment unit for exchange ventilation system . 4. A sensible heat exchanger for exchanging heat between a supply air flow and an exhaust air flow between a wind circuit and a condensed water from the sensible heat exchanger, comprising a supply air blower and an exhaust blower. In the heat exchange ventilator having a water receiving tray, wherein the water receiving tray is located on the negative pressure side in the wind circuit, the leeward side and the leeward side of the drain discharge port are integrally formed, and the leeward side is collected in the water receiving tray. Heat characterized by being higher than the maximum water level
Drain water treatment unit for exchange ventilation system .