JP5419722B2 - Drain trap - Google Patents

Description

  The present invention relates to the evaporating of sealed water due to the positive / negative pressure difference between the inflow side and the exhaust side, the reverse of the pressure difference, and the stoppage of the drainage in the drainage piping of cooling dew condensation water (hereinafter referred to as drain) such as an air conditioner. It is related with the drain trap which can respond also to.

  Conventionally, drain drain piping in an air conditioner or the like has been devised to prevent the inflow of contaminated air or odors by a drain trap or a check valve.

  In such a drain trap provided in the drain pipe from the air conditioner, for example, as a general example, when the air conditioner side is under negative pressure, drainage does not occur in the winter season and the drainage trap section evaporates when the sealed water evaporates. Contaminated air and odor on the part side are mixed in the air conditioner. In this specification, the water seal means to block the movement path of air and odor with drain, the sealed water means the drain (water) used for the water seal, and the breakage means the seal. It means that the water seal is broken due to evaporation of water.

  As countermeasures against the inflow of contaminated air and odor due to breakage as described above, water replenishment to the trap portion and a float ball type sealing device have been proposed (see Patent Document 1). In this patent document 1, the main body provided with the communicating path which connects a receiving part and a discharge | emission part is provided, The storage part which stores the waste_water | drain received in the inflow part on this communicating path, and set amount in the storing part When the above wastewater is stored, a normally closed check valve that opens up the communication path and allows the flow of wastewater to the discharge part is provided, and the wastewater is stored in the storage part that communicates directly under the normally closed check valve. When the drainage of the set amount or more is stored in the storage part, the normally closed check valve rises as the water level of the drainage rises, and the drainage can flow to the appropriate discharge part.

JP 2006-112154 A

  The trap of Patent Document 1 is used when the inflow side is at a negative pressure compared to the discharge side, and if this negative pressure is maintained, the backflow of contaminated air and odors can be prevented even in the case of breaking. Is possible. However, when the flow direction is installed reversely in construction, there is a problem that contaminated air and odor move to the inflow portion side due to breakage.

  Also, in normal times, even if the inflow side is at a negative pressure relative to the discharge side, drainage from various other systems is usually connected to the system on the discharge side. However, at the time of breakage, it was impossible to prevent air from flowing out from the drain inflow side to the discharge side with a light float.

  Further, the reversal of the pressure difference between the inflow portion and the discharge portion as described above fluctuates with the stop of the air conditioner side blower or the pressure loss fluctuation of the filters attached to the air conditioner system. Then, it was impossible to prevent the movement of air. Furthermore, it could not be used when the inflow side was positive with respect to the discharge side.

  The present invention solves the problems of the prior art as described above, and its purpose is to prevent the pressure difference between the inflow portion and the discharge portion, the reverse of the pressure difference, and the evaporation of the sealed water. However, it is in providing the drain trap which can prevent movement of air and an odor.

  In order to achieve the above object, the present invention includes a drain inflow portion and a drain discharge portion, and allows water to flow from the inflow portion to the discharge portion, and for positive / negative, reverse and breakage of the pressure difference. Regardless of the trap for drainage which prevents the movement of odors and air, the drain between the inflow portion and the discharge portion, and the inflow portion and the discharge portion between the inflow portion and the discharge portion. A communication passage is formed so as to pass a position vertically lower than the bottom of the storage passage, and a storage portion for storing a certain amount of water is formed at the lower position of the communication passage, and the inflow portion and the discharge portion In the vicinity, there are floats that prevent air movement between the inflow part and the exhaust part by closing the opposite inlet and outlet, respectively, and the two floats are connected to the inflow of water or air from the outside. The inlet and outlet, respectively, Characterized in that it comprises a biasing means for moving in a direction.

  In the above aspect, two floats are provided on the inflow portion side and the discharge portion side, and furthermore, by providing an urging means for moving in the direction of closing the inflow port and the discharge port, respectively, inflow at the time of breakage such as in winter Even if there is a reversal of the pressure difference between the positive and negative pressures on the part side and the discharge part side, in each case, the float closes the inlet or outlet, so that the discharge part side and the inlet part side Air movement between them can be prevented.

  In the dehumidifying season such as summer, that is, when the drain is generated, a certain amount of drain from the inflow side is stored in the storage part provided below the bottom position of the inlet and outlet, and the inflow part and the outlet part are stored. The movement of the air is sealed by the question with the side. Thus, in the drain trap of the present embodiment, air flow between the inflow portion side and the discharge portion side can be prevented by water sealing with drain during the dehumidifying time such as summer. Further, the height of the water seal is adjusted by the pressure difference between the inflow portion side and the discharge portion side.

  As described above, it is possible to provide a drain trap that can cope with the positive / negative reversal of the pressure difference between the inflow portion side and the discharge portion side and the evaporation of the sealed water in the storage portion due to the stoppage of the drain inflow.

  Specifically, the communication passage is provided with a water passage portion that forms a low position of the communication passage between the housing and at least a part of the bottom of the partition that bisects the housing of the drain trap. It is possible to configure by doing so.

  About the said biasing means, it is also possible to comprise by the following three aspects. That is, first, the urging means is composed of a plurality of plate-like pieces rising in the vertical direction from the bottom of the drain trap, and is divided into the inflow portion side and the discharge portion side, and each plate shape It is also possible to adopt a configuration in which an inclination is formed on the inflow portion side or the discharge portion side by the upper surface of the piece. Secondly, the urging means comprises a mesh member having a plurality of holes and allowing water to pass therethrough, and the mesh member has a V shape when viewed from the inflow portion side or the discharge portion side. It is also possible to configure the inclining portion from the substantially central portion connecting the inflow portion and the discharge portion toward the inflow portion side or the discharge portion side. Thirdly, the urging means comprises a string-like member attached to the float, and the end of the string-like member is attached directly above the inlet and outlet, and there is no inflow of water or air from the outside. In this case, the two floats may be moved to positions in contact with the inlet and the outlet, respectively.

  According to the present invention, it is possible to block the movement path of air and odor against the positive / negative of the pressure difference between the inflow portion and the discharge portion, the reverse of the pressure difference, and the evaporation of the sealed water. A simple drain trap can be provided.

The disassembled perspective view which shows the structure of the trap for drainage in embodiment of this invention. The schematic diagram which shows the structure of the trap for drainage in embodiment of this invention. The schematic diagram which shows the structure of the urging | biasing means in other embodiment of this invention. The schematic diagram which shows the structure of the urging | biasing means in other embodiment of this invention. The schematic diagram which shows the structure of the communicating path in other embodiment of this invention.

  The form for implementing this invention is demonstrated with reference to FIGS.

[1. This embodiment]
[1-1. Constitution]
As shown in FIGS. 1 and 2, the drain trap according to the present embodiment includes a casing 1 having a cylindrical main body 12 and an outer lid 10 and an inner lid 11. The inflow part 2 into which water flows in and the discharge part 3 from which water is discharged are provided at opposing positions. The inflow portion 2 is connected to a drain pipe such as an air conditioner drain, and the water is communicated from the inflow portion 2 to the discharge portion 3 while passing through the storage portion 4 that stores a certain amount of water. A communication path 5 is formed.

  As shown in the schematic side view of FIG. 2A, the bottom positions of the inflow portion 2 and the discharge portion 3 are provided at positions that rise from the bottom surface of the housing 1. A reservoir 4 is formed at the bottom.

The housing 1 is divided into left and right by a partition 6, and the partition 6 is provided with a downward U-shaped water flow portion 60 as shown in FIG. 1 and FIG. 2 (b). The communication path 5 is formed by passing water through the inside of the water passage portion 60. And the height H from the bottom face of the casing 1 of the water flow part 60 forming the U-shape forming the communication path 5 is equal to or lower than the bottom positions of the inflow part 2 and the discharge part 3, and the storage part In a state where water has accumulated to some extent in 4, the lower part of the partition 6 is sealed with water, so that air does not pass through the water passing portion 60, and as a result, the movement of air is sealed between the inflow portion 2 and the discharge portion 3. It is configured. The water seal height in this case is H ₀ -H.

  Spherical floats 7 a and 7 b are respectively provided on the inflow portion 2 and the discharge portion 3 side of the housing 1 partitioned by the partition 6.

  The two floats 7a and 7b are provided with urging means 8 for moving in the direction of closing the inlet 20 of the inlet 2 and the outlet 30 of the outlet 3 in a state where there is no inflow of water or air from the outside. It has been. Specifically, the urging means 8 is composed of a plurality of plate-like inclined pieces 80 rising vertically from the bottom of the drain trap, and the inclined pieces 80 are provided on the inflow portion 2 side and the discharge portion 3 side. In each side, an inclination is formed on the inflow portion 2 side or the discharge portion 3 side by the upper surfaces of the plurality of plate-like inclined pieces 80, respectively.

  That is, as shown in the schematic side view of FIG. 2 (b), an inclined piece 80 is provided so as to be inclined from the partition 6 toward the inflow portion 2 and the discharge portion 3, and the inclined piece 80 is obtained by combination. As shown in the schematic front view of FIG. 2A, it is configured to incline from the left and right directions on the front side toward the central inflow portion 2 and discharge portion 3. As a result, the two floats 7a and 7b are moved in a direction in which the inlet 20 and the outlet 30 are closed by gravity in a state where there is no inflow of water or air from the outside.

[1-2. Action]
The operation when the drain trap of the present embodiment having the above-described configuration is used in a drain drainage system of an air conditioner system will be described below as an example.
[1-2-1. Drain generation time]
During the dehumidifying season such as summer, drainage, which is condensed water in air conditioning, flows from the inflow portion 2 side connected to the air conditioner. As an example, the inflow part 2 side is positive pressure, and the discharge part 3 side is negative pressure. This drain flows from the inflow part 2 side into the storage part 4 and drains from the discharge part 3 through the communication path 5.

  Further, the bottom portions of the inflow portion 2 and the discharge portion 3 are provided at positions rising from the bottom surface of the housing 1, and the storage portion 4 is formed at the bottom portion of the housing 1 by this rising, whereby the storage portion 4, a certain amount of drain from the inflow portion 2 side is stored. Furthermore, a downwardly U-shaped water flow portion 60 that forms a part of the communication path 5 is provided in the partition 6 that divides the housing 1 into left and right. The distance from the upper end of the water flow portion 60 to the lower end of the inflow port 20 and the discharge port 30 is the sealing depth, and the height is set by the pressure difference between the inflow portion side and the discharge portion side. And the discharge part 3 are prevented from moving air. At this time, the two floats 7a and 7b are not floated by the water accumulated in the reservoir 4 and do not hinder the flow of the drain.

  Therefore, in the dehumidifying season such as summer in which drain flows from the inflow portion 2 side, the presence of the storage portion 4 also depends on the distance from the upper end of the water flow portion 60 to the lower ends of the inflow port 20 and the discharge port 30. Even if the pressure difference is reversed between the discharge side and the discharge side, the movement of air between the inflow portion 2 and the discharge portion 3 is prevented.

[1-2-2. When no drain is generated]
Normally, in winter, drainage from the air conditioner disappears, and the sealing water stored in the storage unit 4 evaporates and breaks. In this state, the drain side system is connected to the drainage of various systems, and the inflow part is changed due to changes in the amount of water, etc., or with the change in the pressure loss of the filter unit attached to the air conditioner system and the start / stop of the air blower on the air conditioner side. There is also a reversal of the pressure difference between the side and the discharge part, and air movement occurs between the inflow part 2 and the discharge part 3.

  In contrast to such a conventional trap, in the drain drain trap of the present embodiment, the float 7b blocks the discharge port 30 on the discharge unit side 3 to prevent the release of air from the inflow unit side to the discharge unit side. On the other hand, when the pressure is reversed, that is, when the discharge side is a positive pressure and the inflow side is a negative pressure, the float 7a blocks the inlet 20 of the inflow portion 2.

  At this time, the float 7a, 7b is provided with the inflow port 20 and the discharge port 30 by providing the biasing means 8 constituted by the inclined pieces 80 inclined toward the inflow portion 2 by a plurality of combinations. It can be efficiently guided in the closing direction.

[1-3. effect]
As described above, according to the present embodiment, during a dehumidifying period such as summer, a certain amount of drain from the inflow portion 2 side is stored in the storage portion 4 provided below the bottom portions of the inflow portion 2 and the discharge portion 3. In the state where water is stored in the storage part 4 to some extent by the water passing part 60 of the partition 6 that is stored and further divides the housing 1 into left and right, movement of air between the inflow part 2 and the discharge part 3 is prevented. Is done. As described above, in the drain trap according to the present embodiment, the air flow between the discharge part 3 side and the inflow part 2 side can be cut off by the water sealing with drain in the dehumidifying period such as summer.

  In addition, even when there is no drainage such as in the winter, or when there is a reversal of the pressure difference between the positive pressure and negative pressure on the inflow portion 2 side and the discharge portion 3 side, The floats 7a and 7b move to the inflow portion 2 side or the discharge portion 3 side, and the inflow port 20 or the discharge port 30 is blocked by the floats 7a and 7b, so that the air between the discharge portion 3 side and the inflow portion 2 side is blocked. Can break the flow.

  Thereby, the drain trap which can respond also to evaporation of the sealing water of the storage part 4 by the stop of drain inflow, and the reversal of the pressure difference of an inflow part side and a discharge part side can be provided.

[2. Other Embodiments]
The present invention is not limited to the above-described embodiment, and includes, for example, the following aspects. In the said embodiment, although the example which used the trap for drainage of this invention for the air conditioner was shown, this invention is not restricted to an air conditioner, The flow of water is accompanied by the flow from the inflow part side to the discharge part side. Depending on the pressure difference between the inflow portion side and the discharge portion side, it can be used for a device in which a large amount of air flows from the discharge portion side to the inflow portion side or vice versa. For example, the present invention can also be used for drain pipes to the outside of a clean room where inflow of contaminated air from the discharge unit side is not allowed, and drain pipes for draft chambers having a large pressure difference reversal.

  Further, in the above embodiment, the biasing means 8 is used in combination with a shape in which the float is moved to the inlet 20 or the outlet 30 by the plurality of inclined pieces 80. The shape is not limited to the shape, and various modes can be adopted as long as the inflow port 20 and the discharge port 30 are moved in a direction in which the water or air does not flow in from the outside.

  For example, as shown in FIG. 3, the biasing means 8 is not provided with the inclined piece 80, but is constituted by a water-permeable net-like member 81 having a plurality of holes like a net, and the inflow portion 2 side or discharge The portion 3 is formed in a V shape when viewed from the side, and is substantially inclined from the position of the partition 6 toward the inflow port 20 or the discharge port 30 side, each connecting the inflow portion 2 and the discharge portion 3. Can also be realized.

  Moreover, as shown in FIG. 4, the string-like member 82 is attached to the float, and the ends of the string-like member are attached immediately above the inflow port 20 and the discharge port 30, and there is no inflow of water or air from the outside. The urging means 8 can also be realized by configuring the two floats to move to positions where they are in contact with the inlet 20 and the outlet 30, respectively.

  In this embodiment, as a configuration of the entire housing 1 or the communication path 5, a predetermined rise is provided from the bottom of the cylindrical housing 1 to provide an inflow port 20 and a discharge port 30. However, the present invention is not limited to such a mode. For example, as shown in FIG. 5, the communication path is provided. 5 and a fixed height difference between the bottom of the inlet 20 and the outlet 30, while water flowing in from the inlet 2 is stored between the inlet 20 and the outlet 30, It is good also as a structure of the cyclic | annular communication path 51 which made the whole cyclic | annular form so that it may have the water flow part 61 between both.

  Further, in the present embodiment, the casing 1 of the drain trap is represented by a cylindrical shape, but the shape of the casing is not limited to such an example, and can be configured by a cube, a rectangular parallelepiped, or a polygonal solid. .

DESCRIPTION OF SYMBOLS 1 ... Housing | casing 10 ... Outer lid 11 ... Inner lid 12 ... Main body 2 ... Inflow part 20 ... Inlet 3 ... Discharge part 30 ... Discharge port 4 ... Storage part 5 ... Communication path 51 ... Annular communication path 6 ... Partitions 60 and 61 ... water flow parts 7a, 7b ... float 8 ... biasing means 80 ... inclined piece 81 ... mesh member 82 ... string member

Claims (5)

A drainage trap having a drain inflow portion and a drain discharge portion, which prevents water and odors and air from moving regardless of whether the pressure difference is positive, negative or reverse while passing water from the inflow portion to the discharge portion Because
A communication path is formed between the inflow portion and the discharge portion so that drain passes between the inflow portion and the discharge portion at a position lower than the inflow portion and the bottom of the discharge portion in the vertical direction. And
In the low position of the communication path, a storage portion for storing a certain amount of water is formed,
In the vicinity of the inflow portion and the discharge portion, a float is provided to prevent movement of air between the inflow portion and the discharge portion by closing opposite inlets and discharge ports, respectively.
A drainage trap, comprising urging means for moving the two floats in a direction in which the inlet and the outlet are closed in a state where no water or air flows from the outside.   The communication path is characterized in that a water passage portion that forms the low position of the communication path is provided between the housing and at least a part of a bottom portion of a partition that divides the housing of the drain trap. The drainage trap according to claim 1. The urging means is composed of a plurality of plate-like pieces rising in the vertical direction from the bottom of the drain trap.
It is divided into the said inflow part side and the said discharge part side, and the inclination was formed in the inflow part side or the discharge part side by the upper surface of each plate-shaped piece, respectively. Drain trap. The urging means comprises a net-like member having a plurality of holes and allowing water to pass through,
The net-like member has a V shape when viewed from the inflow portion side or the discharge portion side, and from the substantially central portion connecting the inflow portion and the discharge portion, respectively, from the inflow portion side or the discharge portion side. The drainage trap according to claim 1, wherein the drainage trap is inclined toward the surface. The biasing means comprises a string-like member attached to the float,
The end of the string-like member is attached immediately above the inlet and outlet, and in a state where there is no inflow of water or air from the outside, the two floats are in contact with the inlet and outlet, respectively. The drain trap according to claim 1 or 2, wherein the drain trap is moved.

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