CN211503248U - Water seal arrangement and be equipped with its indirect heating equipment - Google Patents

Abstract

The utility model relates to a water seal arrangement and be equipped with its indirect heating equipment, water seal arrangement includes: the main shell is provided with an accommodating cavity, a water inlet, a main water drainage port and an auxiliary water drainage port, wherein the water inlet, the main water drainage port and the auxiliary water drainage port are all communicated with the accommodating cavity and the external environment; the floating ball is positioned in the main shell and can move between a first position and a second position along the gravity direction under the buoyancy action of liquid in the main shell. Above-mentioned water seal arrangement when the pipeline of connecting in this water seal arrangement's main drainage mouth blocks up, can keep under the condition of normal work at the indirect heating equipment who is equipped with this water seal arrangement, carries out the drainage through supplementary drainage mouth to avoid taking place the comdenstion water phenomenon of flowing backward and damage indirect heating equipment, avoid simultaneously influencing user's life because indirect heating equipment shuts down.

Description

Water seal arrangement and be equipped with its indirect heating equipment

Technical Field

The utility model relates to an electrical equipment field especially relates to a water seal arrangement and be equipped with its 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.

In the condensing wall-mounted boiler structure, condensed water generated by secondary heat exchange of high-temperature flue gas is accumulated in a water sealing device and is discharged through a condensed water drain pipe. However, when the condensate water drain pipe is blocked up by the foreign matter, the condensate water in the water seal can not be discharged in time, the condensate water is continuously accumulated in the water seal, and finally flows back to the hearth through the water inlet and drain pipe, so that core components such as the fan, the proportional valve and the combustor enter water, and the unit is damaged due to faults. Therefore, at present, a fault sensing device is usually arranged in the water sealing device, and when the fault sensing device detects that the condensate water drain pipe is blocked, the alarm can be given back in time. After the unit starts the fault alarm, the control device can carry out shutdown protection to avoid system damage. However, when the operation environment temperature of the wall-mounted boiler is low, if the unit is frequently stopped, the heating environment temperature is reduced, and the life of a user is influenced. More seriously, when the unit is shut down for a long time, the ambient temperature is reduced to the freezing point, which causes the water in the unit and the heating system to be frozen into ice, thereby causing severe after-sale problems such as frost crack of the unit and the heating system.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a water sealing device and a heat exchanger provided with the same, which can still discharge condensed water when a condensed water drain pipe is blocked, in order to solve the problem that a condensing wall-hanging stove is easily damaged because the condensed water drain pipe is blocked and the condensed water cannot be discharged.

A water seal arrangement, comprising:

the main shell is provided with an accommodating cavity, a water inlet, a main water drainage port and an auxiliary water drainage port, wherein the water inlet, the main water drainage port and the auxiliary water drainage port are communicated with the accommodating cavity and the external environment;

the floating ball is positioned in the main shell and can move between a first position and a second position along the gravity direction under the buoyancy action of liquid in the main shell;

when the floating ball is located at the first position, the floating ball seals the main water outlet, and the auxiliary water outlet is in a closed state; when the floating ball is positioned at the second position, the main water outlet and the auxiliary water outlet are both in an open state; when the floating ball is located between the first position and the second position, the main water discharge opening is in an open state, and the auxiliary water discharge opening is in a closed state.

When the floating ball is located at the first position, the main water outlet and the auxiliary water outlet are both in a closed state so as to avoid the discharge of harmful gas. When the floating ball is located at the second position, the condensed water in the accommodating cavity can be discharged through the auxiliary water outlet, so that the condensed water is prevented from flowing backwards. When the floating ball is located between the first position and the second position, the condensed water is discharged through the main water discharging opening. So, when the pipeline that connects in this water seal arrangement's main drainage mouth blocks up, can keep under the condition of normal work at the indirect heating equipment who is equipped with this water seal arrangement, carry out the drainage through supplementary drainage mouth to avoid taking place the comdenstion water phenomenon of flowing backward and damage indirect heating equipment, avoid simultaneously because indirect heating equipment shuts down the life that influences the user.

In one embodiment, the water seal device comprises an auxiliary switch assembly which is detachably arranged on the main shell to open or close the auxiliary water outlet;

when the floating ball is positioned at the first position or between the first position and the second position, the auxiliary switch component closes the auxiliary water outlet; when the floating ball is located at the second position, the floating ball drives the auxiliary switch assembly to rotate so as to open the auxiliary water outlet.

In one embodiment, the auxiliary switch assembly comprises a piston and a rotating member, the piston is mounted on the auxiliary water outlet, one end of the rotating member is fixedly connected to the piston, and the other end of the rotating member extends to a moving path of the floating ball; when the floating ball is located at the second position, the floating ball pushes the rotating piece to drive the piston to rotate.

In one embodiment, the water seal device further comprises a pressure-sensitive element, and when the floating ball is located at the second position, the floating ball abuts against the pressure-sensitive element.

In one embodiment, the pressure sensitive element is mounted to the auxiliary switch assembly.

In one embodiment, the water sealing device further comprises a guide assembly, the guide assembly is located in the accommodating cavity, the guide assembly forms a limiting space extending along a direction in which the water outlet and the main water drainage port point to each other, and the floating ball is movably limited in the limiting space and can move along the extending direction of the limiting space.

In one embodiment, the guide assembly comprises a plurality of guide rods, and a plurality of guide rod rings are arranged at intervals along the circumferential direction of the water inlet and the water outlet to jointly form the limiting space.

In one embodiment, the main housing comprises a bottom wall, a side wall and a top wall, wherein the side wall extends from the edge of the bottom wall in the same direction, the top wall covers one end of the side wall far away from the bottom wall, and the side wall surrounds the peripheries of the bottom wall and the top wall to form the accommodating cavity; the water inlet is arranged on the top wall, the main water outlet is arranged on the bottom wall, and the auxiliary water outlet is arranged on one end, close to the top wall, of the side wall.

In one embodiment, the water sealing device further comprises a water inlet pipe, a main water drainage pipe and an auxiliary water drainage pipe, wherein the water inlet pipe is installed at the water inlet, the main water drainage pipe is installed at the main water drainage port, and the auxiliary water drainage pipe is installed at the auxiliary water drainage port.

The heat exchange equipment comprises the water seal device, and is a gas heating water heater.

Drawings

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

FIG. 2 is a schematic structural diagram of the main housing of the water seal assembly shown in FIG. 1;

FIG. 3 is a schematic structural view of the water seal apparatus shown in FIG. 1 when the float ball is at the first position;

FIG. 4 is a schematic structural view of the water seal apparatus shown in FIG. 1, with the float ball in a second position;

fig. 5 is a schematic structural view of the water seal device shown in fig. 1 when the floating ball is located between the first position and the second position.

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, a heat exchange apparatus according to an embodiment of the present invention is provided with a water seal device 100 for discharging condensed water. The structure of the reclaimed water seal device 100 of the present application will be described below by taking a heat exchanger as a gas heating water heater 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 appliances equipped with the water seal device 100, and is not limited herein.

Referring to fig. 1 and 2, the water seal apparatus 100 includes a main housing 10, a floating ball 70, a guiding assembly 50 and an auxiliary switch assembly 30, wherein the floating ball 70 can move in the main housing 10 along a gravity direction under the buoyancy of the condensed water in the main housing 10 and the guiding action of the guiding assembly 50, thereby controlling the discharge of the condensed water from the water seal apparatus 100.

Specifically, the main housing 10 is a substantially hollow cylindrical structure, and includes a circular bottom wall 11, an annular side wall 12 extending from an edge of the bottom wall 11 in the same direction, and a circular top wall 13 covering an end of the side wall 12 away from the bottom wall 11, wherein the side wall 12 surrounds peripheries of the bottom wall 11 and the top wall 13 to form an accommodating cavity 17.

Circular shape water inlet 132 has been seted up at the center of roof 13, and circular shape main drain 112 has been seted up at the center of diapire 11, and the edge of main drain 112 is to holding the chamber 17 infolding extension, and supplementary outlet 121 has been seted up to the one end that lateral wall 12 is close to roof 13, and water inlet 132, main drain 112 and supplementary outlet 121 all communicate and hold chamber 17 and external environment. Thus, the water inlet 132 is located directly above the main drain opening 112 in the gravity direction, and the auxiliary drain opening 121 is located between the water inlet 132 and the main drain opening 112.

Further, the water seal apparatus 100 further includes a water inlet pipe 14, a main drain pipe 15, and an auxiliary drain pipe 16. The water inlet pipe 14 is installed at the water inlet 132, one end of the water inlet pipe 14 is communicated with the accommodating cavity 17 through the water inlet 132, and the other end of the water inlet pipe 14 is communicated with the secondary heat exchanger of the gas heating water heater. The main drainage pipe 15 is installed at the main drainage port 112, and one end of the main drainage pipe 15 extends into the accommodating cavity 17 to communicate with the accommodating cavity 17. The auxiliary drain pipe 16 is attached to the auxiliary drain port 121, and one end of the auxiliary drain pipe 16 communicates with the accommodating chamber 17 through the auxiliary drain port 121.

In this way, when the water seal apparatus 100 is in a normal operation state, the condensed water in the secondary heat exchanger flows into the accommodating chamber 17 through the water inlet 132 via the water inlet pipe 14, and then flows out via the main water discharge pipe 15. When main drain pipe 15 blocks up, the comdenstion water among the secondary heat exchanger can pass through inlet tube 14 and flow into in holding chamber 17 through water inlet 132, then flow out through auxiliary drain pipe 16 to avoid causing the comdenstion water to constantly accumulate in holding chamber 17 because the jam of main drain pipe 15, until surpassing the volume that holds chamber 17 and flow back the phenomenon in secondary heat exchanger isotructure.

The auxiliary switch assembly 30 is detachably mounted on the auxiliary drain opening 121, the auxiliary switch assembly 30 includes a piston 32 and a rotating member 34, and the rotating member 34 can rotate the piston 32 through the rotating member 34 under the action of the floating ball 70, so as to open the auxiliary drain opening 121.

Specifically, the piston 32 includes a sealing portion 321 and a connecting portion 323 that are integrally formed. The sealing part 321 is detachably embedded in the auxiliary drain opening 121, and the shape of the sealing part 321 matches the shape of the auxiliary drain opening 121. The connecting portion 323 is disposed coaxially with the sealing portion 321, and the outer diameter of the connecting portion 323 is larger than that of the sealing portion 321, so that the edge of the connecting portion 323 protruding the sealing portion 321 in the radial direction abuts against the surface of the main housing 10 on the side close to the accommodating chamber 17 to close the auxiliary water outlet 121. The rotating member 34 is a long bar structure, one end of the rotating member 34 is fixedly connected to the edge of the connecting portion 323 near the water inlet 132, the other end of the rotating member 34 extends horizontally to the moving path of the floating ball 70, and the rotating member 34 can rotate around the connection with the piston 32 under the action of the floating ball 70, so as to drive the lower portion of the piston 32 fixedly connected to the rotating member to separate from the auxiliary water outlet 121.

In this way, when the sealing portion 321 is embedded in the auxiliary drain opening 121, the auxiliary drain opening 121 is in a closed state, thereby preventing harmful gas in the accommodating chamber 17 from being discharged through the auxiliary drain opening 121. When the rotation member 34 rotates by the floating ball 70 to make one end of the sealing portion 321 fall off the auxiliary drain port 121, the condensed water in the receiving chamber 17 may flow out through the auxiliary drain port 121.

The guide assembly 50 is located in the accommodating cavity 17, the guide assembly 50 forms a limiting space extending along the gravity direction, and the floating ball 70 is movably limited in the limiting space and can move along the extending direction of the limiting space.

Specifically, in some embodiments, the guiding assembly 50 includes a plurality of guiding rods 52, the guiding rods 52 are circumferentially spaced along the water inlet 132 and the main water outlet 112, and each guiding rod 52 extends from the end of the main housing 10 with the water inlet 132 to the end of the main housing 10 with the water outlet. In this way, the guide rods 52 together form a limiting space extending along a direction (i.e., a gravity direction) in which the water inlet 132 and the main water outlet 112 point to each other, and the floating ball 70 is limited in the limiting space and can move back and forth between the first position and the second position along the extending direction of the limiting space under the action of buoyancy.

When the float ball 70 is at the first position, the float ball 70 abuts against the end surface of the main drainage pipe 15 to close the main drainage port 112, and the auxiliary drainage port 121 is closed under the closing of the auxiliary switch assembly 30. When the float ball 70 is located between the first position and the second position, the float ball 70 is separated from the main drain pipe 15 to make the main drain port 112 in an open state, and the auxiliary drain port 121 is in a closed state under the closing of the auxiliary switch assembly 30. When the float ball 70 is at the second position, the float ball 70 abuts against the rotating member 34 of the auxiliary switch assembly 30, so that the main water outlet 112 and the auxiliary water outlet 121 are both in an open state.

Further, the water seal device 100 further includes a pressure sensitive element 90, and the pressure sensitive element 90 is mounted at an end of the rotating member 34 of the auxiliary switch assembly 30 far away from the piston 32. When the floating ball 70 is located at the second position, the floating ball 70 abuts against the pressure-sensitive element 90 while abutting against the rotating member 34, and the pressure-sensitive element 90 receives pressure and sends a signal to a control system of the heat exchange device, so as to trigger an alarm to inform a user of the blockage of the drain pipe, thereby reminding the user of overhauling the drain pipe.

The water seal device 100 has the following specific working principle:

as shown in fig. 2 and 3, when the water seal device 100 is normally drained, the condensed water of the secondary heat exchanger enters the accommodating cavity 17 through the water inlet pipe 14, and forms a liquid level a parallel to the bottom wall 11. At this time, the amount of the condensed water in the accommodating cavity 17 is small, and the buoyancy F of the water is smaller than the gravity G of the floating ball 70, so that the floating ball 70 is located at the first position abutting against the main drain pipe 15 to close the main drain port 112, the condensed water submerges the end surface of the main drain pipe 15 to form a water sealing structure, and the auxiliary switch assembly 30 also keeps the auxiliary drain port 121 in a closed state, thereby preventing the smoke containing harmful gases such as CO in the secondary heat exchanger from being discharged to the indoor through the main drain port 112 and the auxiliary drain port 121 to harm the safety of users.

When the condensed water in the receiving chamber 17 reaches a certain amount, the buoyancy F of the water is greater than or equal to the gravity G of the floating ball 70, so that the floating ball 70 ascends along the guide assembly 50 to be located between the first position and the second position, the floating ball 70 is separated from the main drain pipe 15, and the condensed water flows out through the main drain pipe 15. With the outflow of the condensed water, the condensed water in the accommodating cavity 17 is gradually reduced, so that the floating ball 70 gradually falls to block the main drainage pipe 15, and the condensed water in the accommodating cavity 17 forms a water seal structure again.

As shown in fig. 2 and 4, when the main drainage pipe 15 is blocked, the condensed water is collected in the accommodating cavity 17 and cannot be drained through the main drainage pipe 15, the floating ball 70 continuously rises to the second position along with the rising of the water surface to touch the pressure sensitive element 90 on the rotating member 34, the pressure sensitive element 90 is pressed to send a signal to the control system of the gas heating water heater, and then an alarm is sent to remind a user to overhaul the main drainage pipe 15. At the same time, the float ball 70 drives the rotation member 34 to rotate, and further drives the piston 32 to rotate to open the auxiliary drain opening 121, and the condensed water in the accommodating cavity 17 is drained through the auxiliary drain pipe 16, so that the condensed water is prevented from flowing back to the secondary heat exchanger.

As shown in fig. 2 and 5, when the auxiliary drain port 121 drains a certain amount of condensed water, the float ball 70 descends along with the liquid level, and the rotating member 34 loses the force of the float ball 70 and drives the piston 32 to close the auxiliary drain port 121 again. When the condensed water continues to enter the accommodating cavity 17 and the liquid level of the condensed water continues to rise, so that the floating ball 70 is propped against the rotating piece 34 again, the alarming and draining processes are repeated.

In the water sealing device 100 and the heat exchange equipment provided with the same, when the main drainage pipe 15 is blocked, the floating ball 70 drives the auxiliary switch to open the auxiliary drainage port 121 for drainage, so that the phenomenon that condensed water flows backwards due to the fact that condensed water cannot be drained is avoided, and shutdown protection of the gas heating water heater is not needed. Moreover, when the auxiliary water outlet 121 is in the open state, the control system gives an alarm according to the signal of the pressure sensitive element 90, so as to remind the user to check and repair the main water outlet pipe 15 while ensuring the normal use of the heat exchange equipment. In addition, the floating ball 70, the auxiliary switch and the condensed water can seal the main water outlet 112 and the auxiliary water outlet 121, so that the harmful gas in the heat exchange equipment can be prevented from being discharged through the water seal device 100, and the personal safety of a user is ensured.

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 (10)

1. A water seal arrangement (100), characterized in that the water seal arrangement (100) comprises:

the main casing (10), the main casing (10) is provided with an accommodating cavity (17), and is provided with a water inlet (132), a main water discharge port (112) and an auxiliary water discharge port (121) which are communicated with the accommodating cavity (17) and the external environment, wherein the auxiliary water discharge port (121) is positioned between the water inlet (132) and the main water discharge port (112);

a floating ball (70) positioned in the main shell (10), wherein the floating ball (70) can move between a first position and a second position along the gravity direction under the buoyancy of liquid in the main shell (10);

wherein, when the float ball (70) is in the first position, the float ball (70) closes the main drain opening (112), the auxiliary drain opening (121) is in a closed state; when the floating ball (70) is located at the second position, the main water discharge opening (112) and the auxiliary water discharge opening (121) are both in an open state; when the floating ball (70) is located between the first position and the second position, the main water discharge opening (112) is in an open state, and the auxiliary water discharge opening (121) is in a closed state.

2. The water seal arrangement (100) according to claim 1, wherein the water seal arrangement (100) comprises an auxiliary switch assembly (30), the auxiliary switch assembly (30) being detachably mounted to the main housing (10) to open or close the auxiliary water outlet (121);

the auxiliary switch assembly (30) closes the auxiliary drain opening (121) when the float ball (70) is in the first position or the float ball (70) is between the first position and the second position; when the floating ball (70) is at the second position, the floating ball (70) drives the auxiliary switch component (30) to rotate so as to open the auxiliary water outlet (121).

3. The water seal device (100) according to claim 2, wherein the auxiliary switch assembly (30) comprises a piston (32) and a rotating member (34), the piston (32) is installed at the auxiliary water outlet (121), one end of the rotating member (34) is fixedly connected to the piston (32), and the other end of the rotating member (34) extends to a moving path of the floating ball (70); when the floating ball (70) is at the second position, the floating ball (70) pushes the rotating piece (34) to drive the piston (32) to rotate.

4. The water seal (100) according to claim 2, wherein the water seal (100) further comprises a pressure sensitive element (90), and when the floating ball (70) is at the second position, the floating ball (70) abuts against the pressure sensitive element (90).

5. The water seal arrangement (100) according to claim 4, wherein the pressure sensitive element (90) is mounted to the auxiliary switch assembly (30).

6. The water seal device (100) according to claim 1, wherein the water seal device (100) further comprises a guide assembly (50), the guide assembly (50) is located in the accommodating cavity (17), the guide assembly (50) forms a limiting space extending along a gravity direction, and the floating ball (70) is movably limited in the limiting space and can move along an extending direction of the limiting space.

7. The water seal arrangement (100) according to claim 6, wherein the guide assembly (50) comprises a plurality of guide rods (52), and a plurality of rings of guide rods (52) are arranged at intervals along the circumferential direction of the water inlet (132) and the main water discharge opening (112) to jointly form the limit space.

8. The water seal device (100) according to claim 1, wherein the main housing (10) includes a bottom wall (11), a side wall (12) extending from the edge of the bottom wall (11) in the same direction, and a top wall (13) covering one end of the side wall (12) away from the bottom wall, the side wall (12) surrounds the peripheries of the bottom wall (11) and the top wall (13) to form the accommodating cavity (17); the water inlet (132) is arranged on the top wall (13), the main water discharge opening (112) is arranged on the bottom wall (11), and the auxiliary water discharge opening (121) is arranged on one end of the side wall (12) close to the top wall (13).

9. The water seal arrangement (100) according to claim 1, wherein the water seal arrangement (100) further comprises a water inlet pipe (14), a main drain pipe (15) and an auxiliary drain pipe (16), the water inlet pipe (14) is mounted to the water inlet (132), the main drain pipe (15) is mounted to the main drain opening (112), and the auxiliary drain pipe (16) is mounted to the auxiliary drain opening (121).

10. A heat exchange device, characterized in that it comprises a water seal (100) according to any one of claims 1 to 9, said heat exchange device being a gas-fired water heating boiler.

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