CN211503249U

CN211503249U - Water seal structure, drainage device and heat exchange equipment

Info

Publication number: CN211503249U
Application number: CN201922196251.2U
Authority: CN
Inventors: 温林; 马曾文
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2019-12-09
Filing date: 2019-12-09
Publication date: 2020-09-15
Anticipated expiration: 2029-12-09

Abstract

The utility model relates to a water seal structure, drainage device and indirect heating equipment, the water seal structure includes: the water seal structure comprises a water seal structure main body, a water inlet, a water outlet and a bypass port, wherein the water inlet, the water outlet and the bypass port are communicated with each other; and one end of the pressure detection unit is inserted into the water seal structure main body from the bypass port along the gravity direction, and the pressure detection unit is used for detecting the air pressure in the water seal structure main body and sending a liquid level signal according to the size of the air pressure. Above-mentioned water seal structure, when the atmospheric pressure value in the water seal structure main part exceeded the highest atmospheric pressure value of predetermineeing, it takes place to block up to show the water seal structure, and the comdenstion water can't normally be discharged, therefore pressure detecting unit sends liquid level fault signal, and then control heat exchanger unit shuts down in order to avoid continuing to produce the comdenstion water to prevent that the comdenstion water from flowing back to heat exchanger unit and leading to heat exchanger unit to break down or even damage.

Description

Water seal structure, drainage device and heat exchange equipment

Technical Field

The utility model relates to a comdenstion water field of handling especially relates to a water seal structure, drainage device and indirect heating equipment.

Background

The gas heating water heater, also called a wall-hanging boiler, can be divided into a conventional wall-hanging boiler and a condensing wall-hanging boiler. Wherein, condensing hanging stove carries out the secondary heat transfer through utilizing the high temperature flue gas, has improved the heat exchange efficiency of complete machine, has promoted the efficiency of unit. However, the condensate water also becomes a problem to be considered and disposed of in the design of the wall-hanging stove of the condensing type.

The condensing wall hanging stove can produce the comdenstion water in combustion process, and there are some impurity in the comdenstion water, when these impurity concentrate on water seal delivery port department and block up, can cause comdenstion water drain pipe blocking phenomenon, and the water in the drain pipe is amasss more and more, and water can stretch to the combustion chamber and the whole unit of condensing wall hanging stove, makes fire go out in the combustion chamber, forces hanging stove unit pause work to cause the spare part in the unit to damage.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a water sealing structure, a drainage device and a heat exchange device which can prevent the wall-mounted boiler from being damaged due to the blockage of the drainage device, aiming at the problem that the wall-mounted boiler is damaged due to the blockage of the drainage device.

A water seal structure, comprising:

the water seal structure comprises a water seal structure main body, a water inlet, a water outlet and a bypass port, wherein the water inlet, the water outlet and the bypass port are communicated with each other; and

and one end of the pressure detection unit is inserted into the water seal structure main body from the bypass port along the gravity direction, and the pressure detection unit is used for detecting the air pressure in the water seal structure main body and sending a liquid level signal according to the size of the air pressure.

Above-mentioned water seal structure, when the atmospheric pressure value in the water seal structure main part exceeded the highest atmospheric pressure value of predetermineeing, it takes place to block up to show the water seal structure, and the comdenstion water can't normally be discharged, therefore pressure detecting unit sends liquid level fault signal, and then control heat exchanger unit shuts down in order to avoid continuing to produce the comdenstion water to prevent that the comdenstion water from flowing back to heat exchanger unit and leading to heat exchanger unit to break down or even damage.

In one embodiment, the pressure detection unit is limited relative to the water seal structure body in the gravity direction.

In one embodiment, a limiting gap is circumferentially formed at one end of the pressure detection unit inserted into the water seal structure main body, and the water seal structure further comprises a fixing piece which penetrates through the water seal structure main body along a direction intersecting with the gravity direction and is at least partially limited in the limiting gap.

In one embodiment, the fixing member includes a first fixing portion and a second fixing portion connected to one end of the first fixing portion, the first fixing portion penetrates through the water seal structure body along a direction intersecting with a gravity direction and is partially limited in the limiting gap, and the second fixing portion penetrates through the water seal structure body along the direction intersecting with the gravity direction and is wound around the periphery of the pressure detection unit.

In one embodiment, a first limit empty groove and a second limit empty groove are formed in one end, close to the bypass port, of the water seal structure body, the first limit empty groove and the second limit empty groove are arranged at intervals in the radial direction of the water seal structure body and are both communicated with the limit gap;

the two free ends of the first fixing part and the second fixing part which are separated from each other respectively penetrate through the first limiting empty groove and the second limiting empty groove and are fixed with the water seal structure main body.

In one embodiment, the water seal structure further includes a sealing ring, and the sealing ring is sleeved on the periphery of one end of the pressure detection unit inserted in the water seal structure main body and abuts against the inner wall of the water seal structure main body.

In one embodiment, the water seal structure body comprises a water seal pipeline, a bypass pipeline and a water outlet pipeline, the water inlet is arranged on the water seal pipeline, one end of the bypass pipeline is connected to the water seal pipeline, the other end of the bypass pipeline vertically extends along the antigravity direction and forms the bypass port, the water outlet pipeline is connected to the bypass pipeline, and one end, far away from the bypass pipeline, of the water outlet pipeline forms the water outlet.

The drainage device comprises the water seal structure, and the drainage device comprises a drainage pipeline which is connected with a water inlet of the water seal structure main body.

A heat exchange device comprises the water seal structure.

In one embodiment, the heat exchange device is a wall-hanging stove.

Drawings

Fig. 1 is a schematic structural view of a drainage device according to an embodiment of the present invention;

FIG. 2 is an assembly view of a water level detecting unit and a fixing member of the drainage apparatus shown in FIG. 1;

FIG. 3 is an assembled view of a water level monitoring unit of the drain of FIG. 2;

FIG. 4 is a cross-sectional view taken at A-A of FIG. 3;

fig. 5 is a schematic structural view of the fixing member shown in fig. 2.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1, the heat exchange device of the embodiment of the present invention includes a heat exchanger unit and a drainage device 100 connected to the heat exchanger unit. The structure of the drainage device 100 in the present application will be described below by taking a heat exchanger as a condensing wall-mounted boiler as an example. The present embodiment is described as an example, and the technical scope of the present application is not limited thereto. It is understood that in other embodiments, the heat exchange device may also be embodied as other devices equipped with the drainage device 100, and is not limited herein.

Referring to fig. 1, the drainage device 100 includes a water seal structure 20 and a drainage pipeline 40, an inlet end of the drainage pipeline 40 is connected to the heat exchanger set, and an outlet end of the drainage pipeline 40 is connected to a water inlet of the water seal structure 20. In this way, the condensed water discharged from the heat exchanger unit enters the water sealing structure 20 through the water discharge pipe 40.

The water seal structure 20 includes a water seal structure main body 21 and a pressure detection unit 23, and the pressure detection unit 23 is installed in the water seal structure main body 21, and is configured to detect air pressure in the water seal structure main body 21 and send a liquid level signal according to the size of the air pressure. When the air pressure value in the water seal structure main body 21 exceeds the preset highest air pressure value, it indicates that the water seal structure 20 is blocked, and condensed water in the water seal structure main body 21 cannot be normally discharged, so that the pressure detection unit 23 sends a liquid level fault signal, and then the heat exchanger unit is controlled to be stopped to avoid continuously producing the condensed water, thereby preventing the condensed water from flowing back to the heat exchanger unit to cause the heat exchanger unit to break down or even damage.

Specifically, in some embodiments, the water sealing structure body 21 includes a water sealing pipe 212, a bypass pipe 214, and a water outlet pipe 216, which are communicated with each other. Specifically, the water seal pipeline 212 includes a water inlet pipe 2121 and a water storage pipe 2123, the water storage pipe 2123 vertically extends along the gravity direction, one end of the water inlet pipe 2121 is inserted into the water storage pipe 2123 from the top end of the water storage pipe 2123 and extends to the bottom of the water storage pipe 2123 along the gravity direction, the other end of the water inlet pipe 2121 is located outside the water storage pipe 2123 and forms a water inlet, the water discharge pipe 40 is sleeved outside one end of the water inlet pipe 2121 forming the water inlet and is communicated with the water inlet pipe 2121 through the water inlet, and an overflow port for communicating the bypass pipeline 214 is opened at one end of the water storage pipe 2123 close to the water.

The bypass pipe 214 includes a first bypass section 2141 and a second bypass section 2143, one end of the first bypass section 2141 is connected to the water storage pipe 2123 through an overflow port, the other end of the first bypass section 2141 extends in a horizontal direction to be connected to the second bypass section 2143, the second bypass section 2143 extends upward from the first bypass section 2141 in a counter-gravity direction, and one end of the second bypass section 2143 away from the first bypass section 2141 forms a bypass port with a central axis extending in the gravity direction. The middle of the first bypass section 2141 is further provided with an opening, the water outlet pipe 216 is connected with the bypass pipe 214 through the opening, the water outlet pipe 216 vertically extends downwards along the gravity direction, and a water outlet for discharging condensed water is formed at one end of the water outlet pipe 216 far away from the bypass pipe 214.

So, in the gravity side, the by-pass mouth is located between water inlet and the delivery port. When the drainage device 100 is in a normal drainage state, the condensed water discharged from the drainage pipeline 40 enters the water storage pipe 2123 through the water inlet pipe 2121, and the water level of the condensed water continuously rises from the bottom of the water storage pipe 2123 until reaching the overflow port, and then flows into the first bypass section 2141 of the bypass pipeline 214 through the overflow port, and finally flows into the water outlet pipe under the action of gravity and is discharged through the water outlet of the water outlet pipeline 216. Because the water seal pipeline 212 filled with the condensed water has a good sealing effect, the smoke can be effectively prevented from leaking into the water outlet pipeline 216. When the drainage device 100 is blocked and normal drainage is not possible, the condensed water is accumulated in the bypass pipe 214.

One end of the pressure detection unit 23 is inserted into the second bypass section 2143 of the bypass pipeline 214 from the bypass opening along the gravity direction, and the pressure detection unit 23 is configured to detect air pressure inside the water seal structure main body 21 and send a liquid level signal according to the magnitude of the air pressure. When the drain apparatus 100 is in the clogged state, the condensed water is continuously accumulated in the bypass pipe 214 to compress the air in the bypass pipe 214, thereby gradually increasing the air pressure value acquired by the pressure detection unit 23. When the detected air pressure value exceeds the maximum air pressure value set by the pressure detection unit 23, the pressure detection unit 23 sends a liquid level fault signal to the heat exchanger unit, and the heat exchanger unit stops working to stop generating condensed water due to the liquid level fault signal, so that the heat exchanger unit is prevented from being damaged due to the fact that the condensed water flows back into the heat exchanger unit from the drainage device 100.

Because the pressure detection unit 23 which is vertically installed is used for detecting the air pressure value in the water seal structure main body 21, and the water level in the water seal structure main body 21 is not directly detected, the phenomenon of false alarm can not occur, the control accuracy is improved, and the wall-mounted boiler is prevented from being frequently stopped due to the false alarm. Also, even if the clogging phenomenon of the drain apparatus 100 occurs, since the air pocket is formed in the second bypass section 2143, the condensed water does not enter into the pressure detecting unit 23, thereby improving the life span of the pressure detecting unit 23.

As shown in fig. 2 to 4, further, in some embodiments, one end of the pressure detection unit 23 inserted into the water sealing structure main body 21 is circumferentially provided with a limit gap 232, and the limit gap 232 has limit side walls on two sides in the gravity direction. The drainage device 100 further includes a fixing member 25, and the fixing member 25 penetrates through the water sealing structure body 21 along a direction intersecting with the gravity direction and is at least partially limited in the limiting gap 232. Therefore, the pressure detection unit 23 is limited relative to the water seal structure main body 21 through the fixing member 25 in the gravity direction, when the pressure in the water seal structure main body 21 is too high, the pressure detection unit 23 has a tendency of moving upwards, the limiting side wall below the limiting gap 232 is abutted against the fixing member 25, so that the pressure detection unit 23 is blocked by the fixing member 25 in the vertical direction, and the pressure detection unit 23 cannot be separated from the bypass pipeline 214.

Specifically, in an embodiment, the side wall of the water sealing structure main body 21 near the end of the bypass opening is provided with a first limiting empty groove 2143a and a second limiting empty groove 2143b, the first limiting empty groove 2143a and the second limiting empty groove 2143b are disposed at an interval along the radial direction of the water sealing structure main body 21, and both are communicated with the limiting gap 232.

As shown in fig. 4 and 5, the fixing member 25 includes a first fixing portion 252 and a second fixing portion 254 connected to one end of the first fixing portion 252. The free ends of the first fixing portion 252 and the second fixing portion 254 extend along a straight line, and pass through the first limiting empty groove 2143a along the horizontal direction and are partially limited in the limiting gap 232. The free end of the second fixing portion 254 separated from the first fixing portion 252 is arc-shaped, and the radius of the second fixing portion 254 matches the radius of the bypass pipe 214, so that the second fixing portion 254 passes through the second limiting empty groove 2143b along the horizontal direction and is partially wound on one side of the pressure detecting unit 23.

Thus, the fixing member 25 is fixed to the water sealing structure body 21, and when the pressure detecting unit 23 is subjected to the pressure in the water sealing structure body 21 and tends to move in the antigravity direction, the first fixing portion 252 passing through the first limiting empty groove 2143a and limited in the limiting gap 232 can prevent the pressure detecting unit 23 from moving in the antigravity direction, so as to prevent the pressure detecting unit 23 from falling off the bypass pipeline 214. Since the second fixing portion 254 is circumferentially disposed around the outside of the pressure detecting unit 23, the fixing member 25 is not released from the water sealing structure body 21 in the horizontal direction, and the pressure detecting unit 23 is not prevented from rotating around its own axis.

It is understood that the pressure detecting unit 23 is not limited in the limiting manner in the gravity direction, and in some embodiments, the pressure detecting unit 23 may be threadedly engaged with the bypass pipe 214.

As shown in fig. 3, in some embodiments, the drainage device 100 further includes a sealing ring 27, and the sealing ring 27 surrounds an outer periphery of one end of the pressure detection unit 23 inserted in the bypass pipe 214 and abuts against an inner wall of the water sealing structure main body 21. Thus, the sealing ring 27 plays a sealing role, so as to prevent the gas in the water seal structure main body 21 from leaking through the gap between the pressure detection unit 23 and the bypass pipeline 214, thereby ensuring the detection accuracy of the pressure detection unit 23.

According to the water seal structure 20, the drainage device 100 and the heat exchange equipment, the pressure detection unit 23 which is vertically installed is adopted to detect the air pressure value in the water seal structure main body 21, so that the false alarm phenomenon is avoided, and therefore when the drainage device 100 is blocked and normal drainage cannot be carried out, condensate water is prevented from flowing back to enter the heat exchange unit. Moreover, due to the cavitation effect, the pressure detecting unit 23 is prevented from directly contacting with the condensed water in the water sealing structure main body 21, so that the pressure detecting unit 23 has a long service life.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A water seal structure, characterized in that, water seal structure includes:

the water seal structure comprises a water seal structure main body (21) which is provided with a water inlet, a water outlet and a bypass port which are communicated with each other, wherein the bypass port is positioned between the water inlet and the water outlet in the gravity direction, and the central axis of the bypass port extends along the gravity direction; and

and one end of the pressure detection unit (23) is inserted into the water seal structure main body (21) from the bypass port along the gravity direction, and the pressure detection unit (23) is used for detecting the air pressure in the water seal structure main body (21) and sending a liquid level signal according to the size of the air pressure.

2. The water seal structure according to claim 1, wherein the pressure detection unit (23) is limited in the direction of gravity with respect to the water seal structure body (21).

3. The water seal structure according to claim 2, wherein a limiting gap (232) is circumferentially arranged at one end of the pressure detection unit (23) inserted into the water seal structure main body (21), the water seal structure (20) further includes a fixing member (25), and the fixing member (25) penetrates through the water seal structure main body (21) along a direction intersecting with a gravity direction and is at least partially limited in the limiting gap (232).

4. The water seal structure according to claim 3, wherein the fixing member (25) includes a first fixing portion (252) and a second fixing portion (254) connected to one end of the first fixing portion (252), the first fixing portion (252) penetrates the water seal structure body (21) along a direction intersecting with a gravity direction and is partially limited in the limiting gap (232), and the second fixing portion (254) penetrates the water seal structure body (21) along the direction intersecting with the gravity direction and is wound around the periphery of the pressure detection unit (23).

5. The water seal structure according to claim 4, wherein a first limiting empty groove (2143a) and a second limiting empty groove (2143b) are formed at one end of the water seal structure body (21) close to the bypass port, the first limiting empty groove (2143a) and the second limiting empty groove (2143b) are arranged at intervals along a radial direction of the water seal structure body (21), and both are communicated with the limiting gap (232);

the two free ends of the first fixing portion (252) and the second fixing portion (254) which are separated from each other respectively penetrate through the first limiting empty groove (2143a) and the second limiting empty groove (2143b) and are fixed with the water seal structure main body (21).

6. The water seal structure according to claim 1, wherein the water seal structure (20) further includes a sealing ring (27), and the sealing ring (27) is sleeved on an outer periphery of one end of the pressure detection unit (23) inserted into the water seal structure main body (21) and abuts against an inner wall of the water seal structure main body (21).

7. The water seal structure (20) according to any one of claims 1 to 6, wherein the water seal structure body (21) includes a water seal pipeline (212), a bypass pipeline (214), and a water outlet pipeline (216), the water inlet is opened in the water seal pipeline (212), one end of the bypass pipeline (214) is connected to the water seal pipeline (212), the other end of the bypass pipeline (214) vertically extends along the antigravity direction and forms the bypass port, the water outlet pipeline (216) is connected to the bypass pipeline (214), and one end of the water outlet pipeline (216) far away from the bypass pipeline (214) forms the water outlet.

8. A drain arrangement, characterized in that it comprises a water seal structure according to any one of claims 1 to 7, said drain arrangement comprising a drain pipe (40), said drain pipe (40) being connected to the water inlet of the water seal structure body (21).

9. A heat exchange device, characterized in that it comprises a water seal structure according to any one of claims 1 to 7.

10. The heat exchange device of claim 9, wherein the heat exchange device is a wall-hanging stove.