JPH08226663A - Draining device and draining method for equipment - Google Patents

Abstract

PURPOSE: To effectively discharge the drain of a storage vessel for storing drain discharged from an equipment for a long period. CONSTITUTION: The draining device for an air conditioner discharges drain 27 by a drain pump 11 when the drain 27 is stored in a drain pan 8 and arrives at a predetermined level, and comprises a limit switch 19 for displacing the pan 8 by a spring 14 provided at one end side 8a of the pan 8 and a supporting shaft 17 provided at the other end side 8b, detecting the displacement corresponding to the predetermined storage quantity and driving or stopping the pump 11. Further, the device comprises other limit switch for detecting the displacement corresponding to the storage quantity exceeding the predetermined quantity of the drain 27 to stop the operation of the air conditioner 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drainage device and a drainage method for draining discharged water discharged from equipment.

[0002]

2. Description of the Related Art Conventionally, equipment for draining discharged water discharged from equipment such as drain water of an air conditioner, drainage of a humidifier or drainage of a cold / hot water generator, which is installed on a ceiling or the like and whose installation height is restricted. As the drainage device and the drainage method thereof, for example, a drainage device of a device having two water level sensors as shown in FIGS.

In FIG. 4, the drain water 27a condensed by the heat exchanger 4 of the general air conditioner 3 is stored in the drain pan 8,
It is detected by a float switch 20 which is a water level sensor and drained. The drain water 27a that is the discharged water is
Drain water 2 is dripped from the end 6 of the dew receiving plate 5 into the drain pan 8.
7 is stored. When the drain water 27 reaches a predetermined amount, the float switch 20 detects the height position and drives the drain pump 11 to drain the drain water 27.
Emitted from.

In FIG. 5, an electrode 21 is provided in place of the float switch 20 which is the water level sensor shown in FIG. 4, and the same structure and acting parts as those in FIG. 4 are designated by the same reference numerals. The drainage mechanism of the drain water 27 is the same as that of FIG.

[0005]

However, the above-mentioned float switch 20 and electrode 21 have the following problems. That is, a filter is provided on the upstream side, which is the windward side of the heat exchanger 4, but the fine dust in the treated air passes through this filter and is mixed in the drain water 27a during the cooling operation, and thus the drain pan. It is also mixed and contaminated in the drain water 27 stored in 8.

In a common operating range, the dirt of the drain water 27 has little influence on the float switch 20 and the electrode 21 during the cooling period. However, when the heating period in the winter season has passed or the use has been suspended for a long period of time, the dirt of the drain water 27 adheres to the sliding part of the float switch 20 and the detection part of the electrode 21 and is caused by the dirt of the drain water 27. There was a risk that the water level sensor malfunctioned and the height position of the drain water 27 could not be detected, resulting in a water leakage accident when the cooling operation was restarted.

It is an object of the present invention to provide a drainage device and a drainage method for draining discharged water of a device stored in a storage container, which is capable of reliably draining the discharged water stored in the storage container for a long period of time. A drainage device and a drainage method thereof are provided.

[0008]

In order to achieve the above object, the present invention stores the discharged water in a storage container that stores the discharged water discharged from the device, and the stored discharged water reaches a predetermined amount. In the drainage device of the device for draining the discharged water by the drainage device when the displacement device, the displacement means for displacing the storage container according to the stored amount of the discharged water, and the displacement of the discharged water corresponding to a predetermined amount. Displacement detecting means for sending an operation signal for detecting and driving or stopping the drainage device.

Further, in the above invention, the displacing means includes a spring provided at one end of the storage container and a support shaft provided at the other end of the storage container for rotatably supporting the storage container. I have.

Further, in the above invention, the displacing means has a spring provided on one end side of the storage container and another spring provided on the other end side of the storage container. The spring strength is larger than the spring strength of the spring.

Further, in the above invention, the displacing means is such that the storage container is partially displaced by the hydraulic pressure of the discharge water stored in the storage container.

Further, in any one of the above inventions, the drainage device of the device detects an displacement corresponding to a storage amount of the discharge water exceeding a predetermined storage amount, and outputs an operation signal for stopping the operation of the device. It is provided with other displacement detecting means for sending.

Further, the drainage of the equipment for storing the discharge water in a storage container for storing the discharge water discharged from the equipment and draining the discharge water when the stored amount of the discharge water reaches a predetermined amount. In the method, the storage container is displaced according to the storage amount of the discharge water, and the discharge water is drained when the discharge water of the storage container reaches a predetermined storage amount.

Further, in the invention of the above method, the displacement of the discharged water corresponding to a storage amount exceeding a predetermined storage amount is detected, and the operation of the device is stopped.

[0015]

According to the drainage device for equipment of the present invention, the displacement means for displacing the storage container according to the stored amount of the discharged water and the displacement device for detecting the displacement of the discharged water corresponding to the predetermined amount are provided. The storage container is displaced according to the amount of the discharge water discharged from the device stored in the storage container. Then, when the storage amount of the storage container reaches a predetermined amount, the displacement detection means detects the displacement and sends an operation signal for driving or stopping the drainage device to drain the discharged water.

Further, the displacing means has a spring provided at one end of the storage container and a support shaft provided at the other end of the storage container for rotatably supporting the storage container. In addition to the above action, the weight of the storage container storing the discharged water increases as the discharged water discharged from the device is stored in the storage container, and the spring provided at one end side of the storage container is compressed and The storage container is supported by a displacement corresponding to the storage amount by rotating around a support shaft provided on the end side. The displacement means elastically supports the storage container, and the structure for supporting the storage container is simple and the operation is reliable. Next, the displacement detection means detects a displacement of the discharged water corresponding to a predetermined storage amount and sends an operation signal for driving the drainage device, and the drainage device is driven to drain the discharge water of the storage container. Therefore, the discharge water stored in the storage container is reliably drained over a long period of time without the detection function of the displacement detection means being hindered by dirt of the discharge water.

Further, the displacing means has a spring provided on one end side of the storage container and another spring provided on the other end side of the storage container, and the spring strength of the other spring on the other end side is on the one end side. Since the spring is formed to be larger than the spring strength, in addition to the action of the above invention, the displacement of one end side of the storage container is larger than the other end side until the amount of discharged water stored in the storage container reaches a predetermined amount. Change. If a displacement detection means is provided on one end side of the storage container,
This displacement is easily detected and the same action as the drainage device of the above-mentioned equipment is performed.

Further, since the displacement means is a means for partially displacing the storage container by the water pressure of the discharge water stored in the storage container, in addition to the action of the above-mentioned invention, the discharge water of the storage container is added. Displacement due to water pressure, the amount of discharged water stored in the storage container is converted into displacement by a simple mechanism. If displacement detecting means is provided in the vicinity of this displacement means, this displacement is detected and it is similar to the drainage device of the above equipment Perform any action.

Further, in any one of the above inventions, the drainage device for equipment detects another displacement corresponding to a storage amount of discharged water exceeding a predetermined storage amount and sends an operation signal for stopping the operation of the device. Since it is equipped with displacement detection means,
In addition to the action of any one of the above inventions, if the displacement detecting means does not work for some reason, if the storage amount of the storage container further increases and water may leak from the storage container, another displacement detecting means stores the Detect the displacement of the container and stop the operation of the equipment to prevent leakage accidents.

Further, according to the drainage method of the device of the present invention, the storage container is displaced in accordance with the stored amount of the discharged water, and the discharged water is drained when the discharged water reaches the predetermined stored amount. Therefore, the drainage water stored in the storage container is reliably drained for a long period of time without the drainage being hindered by dirt or the like of the drainage water.

Further, in the invention of the above method, the displacement of the discharged water corresponding to the stored amount exceeding a predetermined storage amount is detected, and the operation of the equipment is stopped. Even if the discharged water is not discharged at the specified storage amount, the displacement of the discharged water exceeding the specified storage amount is detected and the operation of the equipment is stopped. Prevent from happening.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the drainage device and drainage method for equipment according to the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a partially omitted sectional view showing a first embodiment of a drainage device for equipment according to the present invention. In the drainage device 1 of the device of the first embodiment, the drain water 27a which is the discharged water condensed by the heat exchanger 4 of the air conditioner 3 which is the device is provided on the dew receiving plate 5 provided below the heat exchanger. End 6 of the receiving and dew receiving plate 5
The drain water 27 is stored in a drain pan 8 which is a storage container provided below the drain pan 27. When the storage amount of the drain water 27 reaches a predetermined amount, a spindle 17 of the drain pan 8 described later is provided.
The drain water 27 is drained from the drain pipe 12 arranged on the heat exchanger 4 side (upper side) by the drain pump 11 which is a drainage device located on the side. And drain water 27
Displacement means for displacing the drain pan 8 in accordance with the storage amount of the above, and displacement detection means for detecting the displacement and sending an operation signal for driving or stopping the drain pump 11.

The displacement means includes a spring 14 provided on one end side 8a of the drain pan 8 for elastically supporting the drain pan 8 for displacement according to the storage amount of the drain water 27, and a drain pan provided on the other end side 8b of the drain pan 8. And a support shaft 17 for rotatably supporting the shaft 8.

The displacement detecting means detects the displacement of the drain pan 8 displaced by the displacing means in accordance with the storage amount, and has a limit switch 19 for detecting the displacement of the drain pan 8 on one end side 8a. Incidentally, reference numeral 26
Is a fixed part.

Furthermore, the drainage device 1 of the equipment of the first embodiment
, Which is not shown in FIG. 1, detects another displacement corresponding to the storage amount of the drain water 27 which exceeds a predetermined storage amount and sends another operation signal for stopping the operation of the air conditioner 3 to detect another displacement. Other limit switches that are means can also be provided.

The drainage device of the device of the first embodiment having the above structure operates as follows. That is, the air conditioner 3
As the drain water 27 discharged from the drain pan 8 is stored in the drain pan 8, the drain pan 8 storing the drain water 27 is counteracted by the spring 14 in the direction of the arrow 28, that is, in the direction of the arrow 28 in FIG. When the drain pan 8 is rotated in the clockwise direction, the displacement of the one end side 8a of the drain pan 8 is lowered to contact the limit switch 19.

When the drain water 27 reaches a displacement corresponding to a predetermined storage amount, the limit switch 19 detects the displacement and sends an operation signal for driving the drain pump 11, and the drain pump 11 is driven and stored. The drain water 27 thus drained is drained to the outside of the device through the drain pipe 12. When the drain water 27 stored in the drain pan 8 is discharged, the drain pan 8 returns to its original state due to the elastic force of the spring 14. This operation is repeated until the drain water 27 is almost exhausted. Spring 14
Elastically supports the drain pan 8, has a simple structure, and operates reliably, and reliably discharges the discharge water stored in the drain pan 8 for a long period of time.

Furthermore, the drainage device 1 of the equipment of the first embodiment
Is provided with another limit switch that detects a displacement corresponding to the storage amount of the drain water 27 exceeding a predetermined storage amount and sends an operation signal for stopping the operation of the air conditioner 3, so that the above-mentioned limit is caused for some reason. Even if the switch 19 does not work, another limit switch (not shown) detects the displacement of the drain pan 8 and stops the operation of the air conditioner 3 to prevent a leakage accident.

FIG. 2 shows a drainage device 1 for equipment according to a second embodiment of the present invention. (A) is a partially omitted sectional view of the drain pan in a state where the drain water is small in amount, and (B) is a drain pan. FIG. 3C is a partially omitted cross-sectional view of a state in which the drain water storage amount reaches a predetermined amount, and FIG. 7C is a partially omitted cross-sectional view of the drain pan in which the drain water storage amount exceeds a predetermined amount.

The displacement means of the second embodiment is the drain pan 8
Has a spring 14 provided on one end side 8a thereof and another spring 15 provided on the other end side 8b of the drain pan 8, and the spring strength of the other spring 15 is formed to be larger than the spring strength of the spring 14. is there. When the drain water 27 is stored from the state of FIG. 2 (A), the limit switch 19 is released as shown in FIG. 2 (B).
The drain pan 8 descends due to gravity until it is displaced to bring it into contact. The drain pump 11 is driven based on the operation signal obtained by the contact of the limit switch 19 to drain the drain water 27 from the drain pipe 12 to the outside of the device. Drain pan 8
When the drain water is discharged, the drain pan 8 is displaced by the spring 1
It returns to the original state by the elastic force of No. 4, and is repeated in the same manner as the drainage device of the device of the first embodiment.

If the drain water 27 is not drained even after the displacement state shown in FIG. 2B due to a trouble of the drain pump 11 or the like, as shown in FIG. Then, it descends and comes into contact with the limit switch 24. Abnormal drainage is detected by the operation signal of the limit switch 24, and the air conditioner 3 is stopped to prevent a water leakage accident. At this time, the lower portion of the drain pan 8 near the one end side 8a contacts the stopper 26a of the fixed portion 26 and is supported thereby. The limit switches 19 and 24 are easy to install, operate reliably, and have few failures.

FIG. 3 is a partially omitted sectional view showing a third embodiment of the drainage device for equipment according to the present invention. Similarly to the first and second embodiments, the drainage device 1 of the device according to the third embodiment is provided with the drain pan 8 at a position for receiving the drain water 27a dripping from the dew receiving plate 5, and the drain pan 8 stores the drain water. The drain pump 11 is provided at a position where the water 27 can be discharged.

Further, in the displacement means of the third embodiment, a part of the drain pan 8 is partially displaced, that is, partially deformed by the water pressure of the drain water 27, and a part of the drain pan 8 is made of silicone rubber or the like. Is formed by the elastic film 9. The elastic film 9 is provided on the bottom of the drain pan 8 and the limit switch 19 is provided below the elastic film 9. Elastic membrane 9
Is formed of an elastic and water-impermeable material, and when the drain water 27 inside the drain pan 8 is empty, it is at the position shown by the broken line on the bottom portion 10 of the drain pan 8.

When the drain water 27 is stored in the drain pan 8, the elastic film 9 is deformed by the pressure of the drain water 27 to the position shown by the solid line, and the limit switch 19 is operated. The drain pump 11 is activated based on this operation signal, and the drain water 2
7 is drained to the outside of the device through the drain pipe 12, whereby the elastic film 9 returns to the position of the broken line again. In the third embodiment, the elastic film 9 is provided on the bottom portion 10 of the drain pan 8, but it may be on the side surface or the corner portion of the drain pan 8 as long as it is at a position where the water pressure of the drain water 27 is received. Further, the drain pan 8 may be entirely deformable. Further, the position of the limit switch 19 may be another position as long as it can be turned on and off by the deformation of the elastic film 9.

Further, another limit switch (not shown) for sending an operation signal for detecting the displacement corresponding to the storage amount of the drain water 27 exceeding a predetermined storage amount and stopping the operation of the air conditioner 3 is provided. Therefore, as in the first and second embodiments, even when the limit switch 19 does not work for some reason, another limit switch (not shown) detects the displacement of the drain pan 8 and operates the air conditioner 3. To prevent leakage accidents.

As described above, according to the drainage device 1 of the air conditioner of the first to third embodiments, the limit switch 1
9 and 24 are located in a place where they do not come into contact with the drain water 27 at all, and the spindle 17 and the movable parts are not related to the dirt of the drain water 27. Therefore, even when the cooling operation is restarted when the cooling operation is stopped for a long period of time. It is possible to reliably drive the drain pump 11 and discharge the drain water 27 without the detection function of the displacement detecting means being hindered by dirt or the like of the drain water 27. Further, the chattering countermeasure is not necessary because it is not affected by the vibration of the water surface of the drain pan 8 caused by the start / stop of the drain pump 11 during the cooling operation.

Next, regarding the embodiment of the drainage method of the equipment of the present invention, the method of draining the drain water of the air conditioner will be described.
An example will be described with reference to FIG. The drainage method of the air conditioner is such that the drain water 27 is stored in the drain pan 8 (reservoir container) that stores the drain water 27a discharged as discharge water from the air conditioner 3 that is a device. In the drainage method of the air conditioner that drains the drain water 27 when the predetermined amount is reached, when the drain pan 8 that is displaceable corresponding to the storage amount of the drain water 27 is displaced and the drain water 27 reaches the predetermined storage amount, Draining the drain water 27.

Further, the operation of the air conditioner 3 is stopped by detecting the displacement corresponding to the storage amount of the drain water 27 which exceeds a predetermined storage amount.

The drainage method for the drainage of the air conditioner is as follows:
By elastically supporting the drain pan 8 or partially displacing the drain pan 8 by hydraulic pressure, the displacement of the drain pan 8 according to the storage amount of the drain water 27 is detected and the magnitude of the displacement is detected. Is to discharge the drain water 27 or stop the operation of the air conditioner 3. According to the drainage method of this air conditioner, the drain pan 8
The drain water 27 stored in the can be reliably drained over a long period of time.

The present invention has been described in detail with reference to the illustrated embodiments. However, the present invention is not limited to these embodiments by that. For example, the drain water in the first to third embodiments described above is used. Is not limited to condensed water generated during cooling, but may be drainage from a humidifier or the like, drainage from a cold / hot water generator, drainage drainage, or the like. In short, it goes without saying that various modifications can be made by making various modifications without departing from the spirit of the present invention.

[0042]

According to the drainage device of the present invention, which is provided with the displacement means and the displacement detection means, the storage amount stored in the storage container is displaced by the displacement means. The detection means detects this displacement to drive or stop the drainage device, so that the detection function of the position detection means is not hindered by dirt of the discharged water,
Make sure to drain the discharge water of the equipment over a long period of time.

Further, the displacing means has a spring provided at one end of the storage container and a support shaft provided at the other end of the storage container for rotatably supporting the storage container. In addition to the effects of the invention, the displacement means has a simple structure and operates reliably by elastically supporting the storage container.

Further, the displacement means has a spring provided on one end side of the storage container and another spring provided on the other end side of the storage container. The spring strength of the other spring is the spring strength of the spring on the one end side. In addition to the effect of the above invention, the displacement detecting means on one end side of the storage container has a reliable detection function, and the other displacement detecting means on the other end side is the storage container. It is easy and reliable to detect after detecting the displacement at one end side of the.

Further, since the displacement means is partially displaced by the water pressure of the discharge water of the storage container, in addition to the effect of the above-mentioned invention, the displacement means has a simple mechanism for the discharge water of the storage container. The amount of storage is converted into displacement, and the operation is reliable and there are few failures.

Further, in any one of the above inventions, the drainage device of the equipment detects a displacement corresponding to a stored amount of discharged water exceeding a predetermined storage amount, and sends an operation signal for stopping the operation of the device. Since it is equipped with displacement detection means,
In addition to the effect of any one of the above inventions, the operation of the device is stopped to prevent a leakage accident.

Further, according to the drainage method of the device of the present invention, since the discharged water is drained when the predetermined amount of discharged water is reached, the drainage is not hindered by dirt of the discharged water. , The drainage water stored in the storage container is reliably drained over a long period of time.

Further, in the invention of the above method, the operation of the equipment is stopped by detecting the displacement corresponding to the storage amount of the discharge water exceeding the predetermined storage amount. Therefore, in addition to the effect of the above method, Even if the discharged water is not discharged at the predetermined storage amount, the operation of the equipment is stopped, so that the leakage accident of the discharged water is prevented.

[Brief description of drawings]

FIG. 1 is a partially omitted sectional view showing a first embodiment of a drainage device for equipment according to the present invention.

FIG. 2 shows a second embodiment similar to FIG. 1, in which (A) is a partially omitted sectional view showing a state in which the drain water in the drain pan is small, and (B) shows the drain water in the drain pan. A partially omitted cross-sectional view of a state in which a predetermined amount is reached, and (C) is a partially omitted cross-sectional view of a state in which the amount of drain water stored in the drain pan exceeds a predetermined amount.

FIG. 3 is a partially omitted sectional view showing a third embodiment similar to that of FIG.

FIG. 4 is a partially omitted sectional view showing a drainage device for equipment according to a conventional technique.

FIG. 5 is a partially omitted cross-sectional view showing a drainage device of another device according to the related art.

[Explanation of reference numerals] 1 drainage device 3 air conditioner (device) 8 drain pan (storage container) 8a one end side 8b other end side 11 drain pump (drainage device) 14 spring (displacement means) 15 other spring (displacement means) ) 17 support shaft (displacement means) 19 limit switch (displacement detection means) 24 other limit switch (other displacement detection means) 27 drain water (discharged water)

Claims (7)

[Claims] 1. Drainage of a device that stores the discharged water in a storage container that stores the discharged water discharged from the device, and drains the discharged water by a drainage device when the stored discharged water reaches a predetermined amount. In the apparatus, a displacement means for displacing the storage container according to the stored amount of the discharged water, and an operation signal for driving or stopping the drainage device by detecting a displacement of the discharged water corresponding to a predetermined amount. And a displacement detecting means for sending the water. 2. The spring according to claim 1, wherein the displacement means includes a spring provided on one end side of the storage container, and a support shaft provided on the other end side of the storage container to rotatably pivot the storage container. A drainage device for equipment, characterized by having. 3. The displacing means according to claim 1, further comprising a spring provided at one end of the storage container and another spring provided at the other end of the storage container. A drainage device for equipment, characterized in that the strength is formed to be larger than the spring strength of the spring. 4. The drainage device for an apparatus according to claim 1, wherein the displacement means is one in which the storage container is partially displaced by the water pressure of the discharge water stored in the storage container. 5. The drainage device of any one of claims 1 to 4, wherein the drainage device of the device detects a displacement corresponding to a storage amount of the discharge water exceeding a predetermined storage amount, and stops the operation of the device. A drainage device for equipment, comprising other displacement detection means for transmitting an operation signal. 6. A drainage of a device for storing the discharge water in a storage container for storing the discharge water discharged from the device, and draining the discharge water when the stored amount of the discharge water reaches a predetermined amount. In the method, the storage container is displaced corresponding to the storage amount of the discharge water, and the discharge water is drained when the discharge water of the storage container reaches a predetermined storage amount. . 7. The method of draining a device according to claim 6, wherein the operation of the device is stopped by detecting a displacement corresponding to a stored amount of the discharged water exceeding a predetermined stored amount.