CN112344197B

CN112344197B - Condensed water discharge assembly, gas water heating equipment and condensed water discharge method thereof

Info

Publication number: CN112344197B
Application number: CN202011181282.1A
Authority: CN
Inventors: 卢楚鹏; 潘同基; 李罗标; 李学研; 岑锦泉
Original assignee: Guangdong Vanward New Electric Co Ltd
Current assignee: Guangdong Vanward New Electric Co Ltd
Priority date: 2020-10-29
Filing date: 2020-10-29
Publication date: 2022-04-08
Anticipated expiration: 2040-10-29
Also published as: CN112344197A

Abstract

The invention relates to a condensed water discharging assembly, a gas water heating device and a condensed water discharging method thereof. Because the water flow direction of the first one-way valve is from the water inlet end of the first one-way valve to the water outlet end of the first one-way valve, namely, the water in the water inlet pipe and the water outlet pipe cannot flow back to the variable space through the first one-way valve; when the moving member carries the first check valve to move to a second position close to the first interface, the variable space gradually reduces the water pressure along with the movement of the moving member and increases the water pressure, and when the water pressure is greater than the water pressure in the water inlet and outlet pipe, the first check valve is switched from a closed state to an open state, and the condensed water in the variable space is discharged into the water inlet and outlet pipe through the first check valve. The condensed water collected in the condensed water discharge pipe can be completely discharged into the water inlet and outlet pipe by reciprocating, the generated condensed water can be effectively treated and discharged, and the product performance is improved.

Description

Condensed water discharge assembly, gas water heating equipment and condensed water discharge method thereof

Technical Field

The invention relates to the technical field of water heaters, in particular to a condensate water discharging assembly, gas water heating equipment and a condensate water discharging method thereof.

Background

Conventionally, gas water heating apparatuses are generally classified into gas water heaters and gas water heating furnaces. The flue gas of the gas water heating equipment contains water vapor, one part of the water vapor in the flue gas can contact the inner wall of the smoke exhaust pipe to generate condensation and convert the condensation into condensate water, the condensate water can flow into the gas water heating equipment along the smoke exhaust pipe to corrode the gas water heating equipment, and the other part of the water vapor in the flue gas can be discharged into the external environment along with the flue gas. In order to avoid that condensed water is remained on the inner wall of the smoke exhaust pipe and enters the gas water heating equipment, an atomizer is usually arranged in the traditional gas water heating equipment, and the generated condensed water is atomized by the atomizer and fog is discharged outwards from the smoke exhaust pipe along with smoke. On the one hand, however, the atomization effect of the atomizer is greatly influenced by the resistance of the smoke exhaust pipe; on the other hand, the smoke exhaust pipe exhausts a large amount of fog, which causes other residents to suspect ignition or cause complaints of other residents for toxic smoke; secondly, when the weather temperature is low, the smoke with a large amount of fog can be changed into water or ice just after being discharged to the pipe opening of the smoke exhaust pipe, so that the smoke exhaust pipe is blocked.

Disclosure of Invention

The first technical problem to be solved by the present invention is to provide a condensate discharging assembly which can effectively treat and discharge the generated condensate to improve the product performance.

The second technical problem to be solved by the invention is to provide a gas water heating device which can effectively process and discharge the generated condensed water and improve the product performance.

The third technical problem to be solved by the present invention is to provide a condensate water discharging method for a gas water heating apparatus, which can effectively treat and discharge the generated condensate water, and improve the product performance.

The first technical problem is solved by the following technical scheme:

a condensate drain assembly, comprising: the gas water heater comprises a shell, a water inlet pipe, a water outlet pipe, a condensate water discharge pipe and a first channel, wherein the shell is provided with a first interface and a second interface, the first interface is used for being communicated with the water inlet pipe and the water outlet pipe of gas water heating equipment, the second interface is used for being communicated with the condensate water discharge pipe of the gas water heating equipment, and the shell is also provided with the first channel for communicating the first interface with the second interface; the moving member is connected with the first one-way valve and used for driving the first one-way valve to move back and forth in the first channel, the outer wall of the first one-way valve is in sealing fit with the inner wall of the first channel, the water outlet end of the first one-way valve is communicated with the first interface, and the water inlet end of the first one-way valve is far away from the first interface relative to the water outlet end of the first one-way valve; the switch valve is arranged on the second interface and used for controlling whether the first channel is communicated with the condensed water discharge pipe or not, the space between the first one-way valve and the switch valve is a variable space, and the water inlet end of the first one-way valve is communicated with the variable space.

Compared with the background technology, the condensed water discharging assembly of the invention has the following beneficial effects:

the condensed water discharging assembly is arranged on the gas water heating equipment, the first interface is communicated with the water inlet pipe and the water outlet pipe of the gas water heating equipment, and the second interface is communicated with the condensed water discharging pipe of the gas water heating equipment. When a certain amount of condensed water is collected by a condensed water discharge pipe of the gas water heating equipment, the moving member carries the first one-way valve to move from the first position to the direction of the first interface and synchronously opens the switch valve, so that the volume of the variable space is increased, the condensed water collected by the condensed water discharge pipe enters the variable space through the first interface, and as the water flow direction of the first one-way valve is from the water inlet end of the first one-way valve to the water outlet end of the first one-way valve, namely, the water in the water inlet pipe and the water outlet pipe cannot flow back to the variable space through the first one-way valve; variable space drainage state, when the moving member carries first check valve and moves to the second position that is close to first interface, make the moving member carry first check valve and change the moving direction, make the ooff valve close in step, variable space diminishes along with the removal of moving member gradually this moment, the water pressure increase in the variable space of the in-process that the volume of variable space diminishes, and when the water pressure in the variable space is greater than the water pressure in the business turn over water pipe, first check valve will be switched into the open mode by the closed condition, the comdenstion water in the variable space discharges in the business turn over water pipe through first check valve. The condensed water collected in the condensed water discharge pipe can be completely discharged into the water inlet and outlet pipe by reciprocating, the generated condensed water can be effectively treated and discharged, and the product performance is improved.

In one embodiment, the switch valve is a second one-way valve, a water inlet end of the second one-way valve is used for communicating with the condensed water discharge pipe, and a water outlet end of the second one-way valve is communicated with the variable space.

In one embodiment, the outer wall of the second check valve is in sealing fit with the inner wall of the second port, and the second check valve is fixedly arranged on the inner wall of the second port.

In one embodiment, the housing comprises a first tube body provided with the first channel and a second tube body arranged on the tube wall of the first tube body; a first water hole is formed in the pipe wall of the first pipe body and is communicated with the second pipe body through the first water hole; a port at one end of the first pipe body is the first interface, a first sealing plate is fixedly arranged on the inner wall of the first pipe body, the first check valve and the first water hole are closer to the first interface relative to the first sealing plate, and a space among the first check valve, the first sealing plate and the switch valve is the variable space; the port of one end, far away from the first pipe body, of the second pipe body is the second interface, and the switch valve is fixedly arranged on the second pipe body.

In one embodiment, the moving member comprises a mounting block and a driving rod connected with the mounting block, the outer wall of the mounting block is in sealing fit with the inner wall of the first channel, and the driving rod is used for driving the mounting block to move back and forth in the first channel; the mounting block is provided with a mounting hole for accommodating the first one-way valve, and the first one-way valve is arranged on the mounting block.

In one embodiment, the driving rod is provided with a second water hole communicated with the mounting hole and a third water hole communicated with the second water hole; the first one-way valve is arranged in the mounting hole and communicated with the second water hole, and the third water hole is communicated with the variable space.

In one embodiment, the first sealing plate is provided with a first through hole penetrating through the driving rod, and the driving rod is movably arranged in the first through hole along the extending direction of the first channel.

In one embodiment, the driving rod extends out of the housing through the first through hole and is used for being connected with a pushing mechanism located outside the housing.

In one embodiment, the moving member further includes a driving member disposed on the first pipe; the driving piece drives the driving rod to move back and forth in the first channel.

In one embodiment, the driving member is a motor fixedly arranged on the inner wall of the first channel, a gear is arranged on a rotating shaft of the motor, and a strip-shaped tooth meshed with the gear is arranged on the driving rod.

In one embodiment, a movable plate is fixedly connected to the driving rod, a plate edge of the movable plate is in sealing fit with the inner wall of the first channel and can move back and forth in the first channel, and the movable plate is farther away from the first interface relative to the first sealing plate; the first pipe body is a compressed space corresponding to a space area between the first sealing plate and the movable plate, an air inlet hole is formed in the pipe wall of the first pipe body, and the compressed space is communicated with the external environment through the air inlet hole; and a second sealing plate is arranged at the port of the other end of the first pipe body, a second channel is arranged in the pipe wall of the first pipe body, one end of the second channel is communicated with the first interface, and the other end of the second channel is communicated with a space area between the second sealing plate and the movable plate.

In one embodiment, a movable plate is fixedly connected to the driving rod, a plate edge of the movable plate is in sealing fit with the inner wall of the first channel and can move back and forth in the first channel, and the movable plate is farther away from the first interface relative to the first sealing plate; the first pipe body is a compressed space corresponding to a space area between the first sealing plate and the movable plate, an air inlet hole is formed in the pipe wall of the first pipe body, and the compressed space is communicated with the external environment through the air inlet hole; the other end port of the first pipe body is provided with a second sealing plate, the pipe wall of the first pipe body is provided with a communicating pipe, one end of the communicating pipe is communicated with the first interface, and the other end of the communicating pipe is communicated with a space area between the second sealing plate and the movable plate.

The second technical problem is solved by the following technical solutions:

the gas water heating equipment comprises the condensed water discharge assembly, a water inlet pipe, a water outlet pipe and a condensed water discharge pipe; the first connector is communicated with the water inlet pipe and the water outlet pipe, and the second connector is communicated with the condensed water discharge pipe.

Compared with the background art, the gas water heating equipment has the beneficial effects that:

in the gas water heating equipment, the first interface is communicated with the water inlet pipe and the water outlet pipe of the gas water heating equipment, and the second interface is communicated with the condensate water discharge pipe of the gas water heating equipment. When a certain amount of condensed water is collected by a condensed water discharge pipe of the gas water heating equipment, the moving member carries the first one-way valve to move from the first position to the direction of the first interface and synchronously opens the switch valve, so that the volume of the variable space is increased, the condensed water collected by the condensed water discharge pipe enters the variable space through the first interface, and as the water flow direction of the first one-way valve is from the water inlet end of the first one-way valve to the water outlet end of the first one-way valve, namely, the water in the water inlet pipe and the water outlet pipe cannot flow back to the variable space through the first one-way valve; variable space drainage state, when the moving member carries first check valve and moves to the second position that is close to first interface, make the moving member carry first check valve and change the moving direction, make the ooff valve close in step, variable space diminishes along with the removal of moving member gradually this moment, the water pressure increase in the variable space of the in-process that the volume of variable space diminishes, and when the water pressure in the variable space is greater than the water pressure in the business turn over water pipe, first check valve will be switched into the open mode by the closed condition, the comdenstion water in the variable space discharges in the business turn over water pipe through first check valve. The condensed water collected in the condensed water discharge pipe can be completely discharged into the water inlet and outlet pipe by reciprocating, the generated condensed water can be effectively treated and discharged, and the product performance is improved.

In one embodiment, the gas-fired water heating apparatus further comprises a water level detector disposed on the condensed water discharge pipe, and a controller; the controller is respectively and electrically connected with the moving piece and the water level detector.

In one embodiment, the condensed water discharge pipe is provided with a filter and/or a pH regulator.

The third technical problem is solved by the following technical scheme:

the condensed water discharging method of the gas water heating equipment comprises the following steps:

the variable space is in a water inlet and storage state, the moving piece carries the first one-way valve to move from the first position to the direction of the first interface and synchronously opens the switch valve, and in the process that the moving piece carries the first one-way valve to move to the second position close to the first interface, condensed water collected by the condensed water discharge pipe enters the variable space through the first interface;

the variable space is in the drainage state, and the moving member carries first check valve and changes the moving direction and move towards the primary importance, closes the ooff valve in step, and at the in-process that the moving member carried first check valve and moved to the primary importance by the second place, the comdenstion water in the variable space discharges through first check valve in the business turn over water pipe.

Compared with the background technology, the condensed water discharge method of the gas water heating equipment has the following beneficial effects:

according to the condensed water discharging method of the gas water heating equipment, the water inlet and storage state and the water discharging state are reciprocated, so that the condensed water collected in the condensed water discharging pipe can be completely discharged into the water inlet and outlet pipe, the generated condensed water can be effectively treated and discharged, and the product performance is improved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a structural view of a first check valve of a condensate discharging assembly according to an embodiment of the present invention in a first position;

fig. 2 is a structural view illustrating a first check valve of a condensate discharging assembly according to an embodiment of the present invention in a first position and moved toward a second position in synchronization with the opening and closing of an on-off valve;

FIG. 3 is a structural view illustrating the first check valve of the condensate discharging assembly of the present invention in a second position and moved toward a first position;

FIG. 4 is a schematic view illustrating an installation and placement of a condensate drain assembly according to an embodiment of the present invention;

FIG. 5 is a schematic structural view of a condensed water drain assembly according to another embodiment of the present invention;

FIG. 6 is a schematic structural view of a condensed water drain assembly according to still another embodiment of the present invention;

fig. 7 is a simplified structural schematic diagram of a gas-fired water heating apparatus according to an embodiment of the present invention.

Reference numerals:

10. a condensed water discharge assembly; 11. a housing; 111. a first interface; 112. a second interface; 113. a first channel; 12. a moving member; 121. mounting blocks; 1211. mounting holes; 1212. a second mounting groove; 1213. a second seal ring; 122. a drive rod; 1221. a second water hole; 1222. a third water hole; 1223. a bar-shaped tooth; 1224. a second through hole; 123. a gear; 124. a movable plate; 1241. a fifth mounting groove; 1242. a fifth seal ring; 13. a first check valve; 131. a third mounting groove; 132. a third seal ring; 14. an on-off valve; 141. a first mounting groove; 142. a first seal ring; 15. a variable space; 16. a first pipe body; 161. a first water hole; 162. an air inlet; 163. a second sealing plate; 1631. a sixth mounting groove; 1632. a sixth seal ring; 164. a second channel; 17. a second tube body; 18. a first sealing plate; 181. a first through hole; 182. a fourth mounting groove; 183. a fourth seal ring; 191. compressing the space; 192. a spatial region; 20. a water inlet pipe and a water outlet pipe; 30. a condensed water discharge pipe; 40. a condenser; 50. a water level detector.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

Referring to fig. 1 to 3, fig. 1 illustrates a structural view of a first check valve 13 of a condensate discharging assembly 10 according to an embodiment of the present invention when the first check valve 13 is located at a first position, fig. 2 illustrates a structural view of the condensate discharging assembly 10 according to an embodiment of the present invention when the first check valve 13 is located at the first position and moves toward a second position in synchronization with the opening and closing of a switching valve 14, and fig. 3 illustrates a structural view of the condensate discharging assembly 10 according to an embodiment of the present invention when the first check valve 13 is located at the second position and moves toward the first position. In an embodiment of the present invention, a condensate discharging assembly 10 is provided, the condensate discharging assembly 10 includes a housing 11, a moving member 12, a first check valve 13 and a switch valve 14. The housing 11 is provided with a first interface 111 and a second interface 112. The first interface 111 is used for communicating with the water inlet and outlet pipe 20 of the gas water heating device, and the second interface 112 is used for communicating with the condensed water discharge pipe 30 (shown in fig. 4) of the gas water heating device. The housing 11 is further provided with a first passage 113 communicating the first port 111 and the second port 112. The moving member 12 is connected to the first check valve 13 and is configured to drive the first check valve 13 to move back and forth in the first channel 113, an outer wall of the first check valve 13 is in sealing fit with an inner wall of the first channel 113, a water outlet end of the first check valve 13 is communicated with the first port 111, and a water inlet end of the first check valve 13 is far away from the first port 111 relative to a water outlet end of the first check valve 13. The switching valve 14 is provided at the second port 112 for controlling whether the first passage 113 communicates with the condensed water discharge pipe 30. The space between the first one-way valve 13 and the switch valve 14 is a variable space 15, and the water inlet end of the first one-way valve 13 is communicated with the variable space 15.

It should be noted that the water inlet and outlet pipe 20 refers to a water inlet pipe or a water outlet pipe of the gas water heating device, and the water inlet pipe or the water outlet pipe of the gas water heating device is usually connected with a tap water pipe of an external water system. In addition, the condensed water discharge pipe 30 of the gas water heating apparatus is communicated with a condenser 40 (shown in fig. 7) of the gas water heating apparatus, and the condenser 40 discharges the condensed water into the condensed water discharge pipe 30.

It should be noted that "variable" in the variable space 15 means that when the moving member 12 moves in the first passage 113, the space between the first one-way valve 13 and the on-off valve 14 can be increased or decreased correspondingly as the position of the moving member 12 changes in the first passage 113.

After the above-mentioned condensed water discharging assembly 10 is installed on the gas water heating device, the first interface 111 is communicated with the water inlet and outlet pipe 20 of the gas water heating device, and the second interface 112 is communicated with the condensed water discharging pipe 30 of the gas water heating device. When a certain amount of condensed water is collected in the condensed water discharge pipe 30 of the gas water heating equipment, the moving member 12 carries the first check valve 13 to move from the first position toward the first connector 111 and synchronously opens the switch valve 14, so that the volume of the variable space 15 is increased, the condensed water collected in the condensed water discharge pipe 30 enters the variable space 15 through the first connector 111, and the water flow direction of the first check valve 13 is from the water inlet end of the first check valve 13 to the water outlet end of the first check valve 13, that is, the water in the water inlet/outlet pipe 20 cannot flow back to the variable space 15 through the first check valve 13; when the movable member 12 carries the first check valve 13 and moves to a second position close to the first connector 111, the movable member 12 carries the first check valve 13 to change the moving direction, the switch valve 14 is synchronously closed, the variable space 15 gradually decreases along with the movement of the movable member 12, the water pressure in the variable space 15 increases in the process that the volume of the variable space 15 decreases, and when the water pressure in the variable space 15 is greater than the water pressure in the water inlet and outlet pipe 20, the first check valve 13 is switched from the closed state to the open state, and the condensed water in the variable space 15 is discharged into the water inlet and outlet pipe 20 through the first check valve 13. By reciprocating in this way, the condensed water collected in the condensed water discharge pipe 30 can be completely discharged into the water inlet and outlet pipe 20, the generated condensed water can be effectively treated and discharged, and the product performance is improved.

It will be appreciated that the first position is generally defined as the extreme position of the movable member 12 furthest from the first port 111, and the second position is generally defined as the extreme position of the movable member 12 closest to the first port 111, so as to allow a single action to drain the amount of condensate into the inlet/outlet pipe 20.

Referring to fig. 1 to 3 again, the switch valve 14 is a second one-way valve. The inlet end of the second one-way valve is adapted to communicate with the condensate discharge pipe 30 and the outlet end of the second one-way valve is in communication with the variable volume 15. Thus, when the variable space 15 is in the water inlet and storage state, the moving member 12 carries the first check valve 13 to move from the first position to the direction of the first connector 111, so that the volume of the variable space 15 is increased, the pressure in the variable space 15 is reduced and is smaller than the water pressure at the water inlet end of the second check valve, the opening of the second check valve is automatically realized, and the condensed water collected by the condensed water discharge pipe 30 can smoothly enter the variable space 15 through the second check valve; when the variable space 15 is in the drainage state, the variable space 15 gradually decreases along with the movement of the moving member 12, and the water pressure in the variable space 15 increases in the process that the volume of the variable space 15 decreases, that is, the water pressure at the water outlet end of the second check valve is greater than the water pressure at the water inlet end of the second check valve, that is, the second check valve is automatically closed, so that the condensate water in the variable space 15 can be prevented from flowing back to the condensate water discharge pipe 30. Alternatively, the on-off valve 14 is not limited to the second check valve, but may be a solenoid valve, a manual valve, or the like, which is not limited herein.

Referring to fig. 1 to fig. 3, further, an outer wall of the second check valve is in sealing fit with an inner wall of the second port 112, and the second check valve is fixedly disposed on the inner wall of the second port 112. In this way, when the position of the moving member 12 in the first passage 113 is changed, since the second check valve is fixed to the inner wall of the second port 112, the second check valve does not move in position with the change in the size of the variable space 15. Specifically, the outer wall of the second check valve is provided with a first mounting groove 141, a first sealing ring 142 is arranged in the first mounting groove 141, the first sealing ring 142 contacts with the inner wall of the second connector 112, and the outer wall of the second check valve is in sealing fit with the inner wall of the second connector 112, so that better sealing performance is ensured. In addition, the second check valve is fixed on the inner wall of the second port 112 in many ways, for example, by welding, bonding, or using screws, pins, rivets, clips, or other mounting members for auxiliary fixing, which is not limited herein.

Referring to fig. 1 to 3, the housing 11 further includes a first tube 16 having a first channel 113 and a second tube 17 disposed on a wall of the first tube 16. The first pipe 16 has a first water hole 161 on its wall and is connected to the second pipe 17 through the first water hole 161. One end port of the first pipe 16 is a first joint 111, a first sealing plate 18 is fixedly arranged on the inner wall of the first pipe 16, the first check valve 13 and the first water hole 161 are closer to the first joint 111 than the first sealing plate 18, and a space among the first check valve 13, the first sealing plate 18 and the switch valve 14 is a variable space 15. The end of the second tube 17 away from the first tube 16 is a second port 112, and the switch valve 14 is fixed on the second tube 17.

It should be noted that, in infringement comparison, the "second tube 17" may be a "part of the first tube 16", that is, the "second tube 17" and "the other part of the first tube 16" are integrally formed; the "second pipe 17" may be manufactured separately from the "other portion of the first pipe 16" and may be combined with the "other portion of the first pipe 16" to form a single body.

It will be appreciated that the location of the first seal plate 18 within the first tubular body 16 is not limited and may be provided as appropriate, for example, at an end portion of the first tubular body 16 as shown in fig. 1 to 3 or at a central portion of the first tubular body 16 as shown in fig. 5 or 6.

Referring to fig. 1 to 3, the moving member 12 further includes a mounting block 121 and a driving rod 122 connected to the mounting block 121. The outer wall of the mounting block 121 is in sealing fit with the inner wall of the first channel 113, and the driving rod 122 is used for driving the mounting block 121 to move back and forth in the first channel 113. The mounting block 121 is provided with a mounting hole 1211 for receiving the first check valve 13, and the first check valve 13 is provided on the mounting block 121. As such, the outer wall of the first check valve 13 does not directly contact and sealingly engage the inner wall of the first passage 113, but indirectly engages the inner wall of the first passage 113. In addition, because the outer wall of the mounting block 121 is in sealing fit with the inner wall of the first channel 113 and is movably arranged in the first channel 113, and the first check valve 13 is arranged on the mounting block 121 of the moving part 12, the first check valve 13 is not directly in contact sealing with the inner wall of the first channel 113 but indirectly in contact sealing with the inner wall of the first channel 113, so that the problem of sealing performance caused when the first check valve 13 directly moves in contact with the inner wall of the first channel 113 can be avoided, and the service life of the first check valve 13 can be prolonged.

Of course, as an alternative, the first check valve 13 may also be directly contacted and sealed with the inner wall of the first channel 113 and moved back and forth along the first channel 113 under the action of the moving member 12.

Specifically, a second mounting groove 1212 is formed in an outer wall of the mounting block 121, and a second sealing ring 1213 is disposed in the second mounting groove 1212. Therefore, the outer wall of the mounting block 121 is in sealing contact with the inner wall of the first interface 111 through the second sealing ring 1213, and better sealing performance is ensured. In addition, a third mounting groove 131 is formed in the outer wall of the first check valve 13, a third sealing ring 132 is arranged in the third mounting groove 131, and the third sealing ring 132 is in sealing contact with the hole wall of the mounting hole 1211 to ensure the sealing property between the first check valve 13 and the hole wall of the mounting hole 1211.

Referring to fig. 1 to 3, in one embodiment, the driving rod 122 is provided with a second water hole 1221 communicating with the mounting hole 1211, and a third water hole 1222 communicating with the second water hole 1221. The first check valve 13 is provided in the mounting hole 1211 and communicates with the second water hole 1221, and the third water hole 1222 communicates with the variable space 15. Specifically, the second water hole 1221 is provided along the axial direction of the driving rod 122, and the third water hole 1222 penetrates through opposite side walls of the driving rod 122 and communicates with the second water hole 1221. As an alternative, the second water hole 1221 and the third water hole 1222 may be communicated to form one water hole, and it is not necessary to provide two water holes, and it is possible to reduce the number of water holes, or increase the number of water holes, and the invention is not limited herein.

In one embodiment, the first sealing plate 18 is provided with a first through hole 181 penetrating through the driving rod 122, and the driving rod 122 is movably disposed in the first through hole 181 along the extending direction of the first channel 113. In this way, the first sealing plate 18 is in sealing fit with the wall of the first channel 113, so as to achieve a better sealing effect; in addition, when the moving member 12 moves back and forth in the first passage 113, the driving rod 122 can move back and forth along the first through hole 181 without being obstructed by the first sealing plate 18, thereby smoothly achieving the water inlet and storage operation and the water discharge operation of the variable space 15.

In addition, it can be understood that a fourth mounting groove 182 is formed on the outer wall of the first sealing plate 18 and the wall of the first through hole 181, and a fourth sealing ring 183 is disposed in the fourth mounting groove 182. In this way, the fourth sealing ring 183 on the outer wall of the first sealing plate 18 can be in sealing contact with the wall of the first passage 113, and the fourth sealing ring 183 on the wall of the first through hole 181 can be in sealing contact with the outer wall of the driving rod 122, so that the first sealing plate 18 has good sealing performance.

In one embodiment, the driving rod 122 protrudes out of the housing 11 through the first through hole 181 and is used to connect with a pushing mechanism located outside the housing 11. In this way, the driving rod 122 can move back and forth in the first channel 113 through the pushing mechanism located outside the housing 11, so as to drive the first check valve 13 to move back and forth in the first channel 113.

Referring to fig. 6, fig. 6 is a schematic structural view illustrating a condensate discharging assembly 10 according to another embodiment of the present invention. In another embodiment, the moving member 12 further includes a driving member (not shown) disposed on the first tube 16. The driving member drives the driving rod 122 to move back and forth in the first channel 113. In this way, the driving rod 122 can also move back and forth in the first channel 113 through the driving part on the first pipe 16, so as to drive the first check valve 13 to move back and forth in the first channel 113.

Referring to fig. 6, further, the driving member is a motor fixedly disposed on the inner wall of the first channel 113, a gear 123 is disposed on a rotating shaft of the motor, and a bar-shaped tooth 1223 engaged with the gear 123 is disposed on the driving rod 122. Thus, when the motor is operated, the gear 123 rotates to drive the driving rod 122 to move back and forth in the first channel 113. It can be understood that the driving rod 122 is provided with a second through hole 1224 along the extending direction of the first channel 113, the bar-shaped teeth 1223 are formed on the wall of the second through hole 1224, and the gear 123 is provided in the second through hole 1224, so that the operation of the motor is more stable. It is understood that the driving member is not limited to the gear 123 and the rack teeth 1223 for moving the driving rod 122, and other structures can be used to move the driving rod 122 back and forth in the first channel 113.

Referring to fig. 5 and 6, fig. 5 is a schematic structural diagram of a condensate water draining assembly 10 according to another embodiment of the present invention. In one embodiment, a movable plate 124 is fixedly connected to the driving rod 122, an edge of the movable plate 124 is in sealing engagement with an inner wall of the first channel 113 and can move back and forth in the first channel 113, and the movable plate 124 is further away from the first port 111 relative to the first sealing plate 18. The first tube 16 is a compression space 191 corresponding to a space area between the first sealing plate 18 and the movable plate 124, an air inlet 162 is formed on a tube wall of the first tube 16, and the compression space 191 is communicated with the external environment through the air inlet 162. The other end of the first tube 16 is provided with a second sealing plate 163, a second channel 164 is provided in the tube wall of the first tube 16, one end of the second channel 164 is communicated with the first port 111, and the other end of the second channel 164 is communicated with a space area 192 between the second sealing plate 163 and the movable plate 124. Therefore, as the water inlet/outlet pipe 20 has a certain water pressure, that is, the first port 111 has a certain water pressure, when the second passage 164 connects the first port 111 and the space region 192 between the second sealing plate 163 and the movable plate 124 to each other, the water pressure of the space region 192 between the second sealing plate 163 and the movable plate 124 can be ensured to be the same as the water pressure of the first port 111, so that the moving member 12 can move back and forth in the first passage 113 more conveniently, and the acting force for driving the moving member 12 to move is smaller.

In another embodiment, a movable plate 124 is fixedly connected to the driving rod 122, an edge of the movable plate 124 is in sealing engagement with an inner wall of the first channel 113 and can move back and forth in the first channel 113, and the movable plate 124 is further away from the first port 111 relative to the first sealing plate 18; the first tube 16 is a compression space 191 corresponding to the space between the first sealing plate 18 and the movable plate 124, an air inlet 162 is formed in the tube wall of the first tube 16, and the compression space 191 is communicated with the external environment through the air inlet 162; the other end of the first tube 16 is provided with a second sealing plate 163, a communicating tube (not shown) is disposed on the tube wall of the first tube 16, one end of the communicating tube is communicated with the first connector 111, and the other end of the communicating tube is communicated with a space region 192 between the second sealing plate 163 and the movable plate 124. Similar to the second passage 164, the communicating pipe can also achieve the same water pressure magnitude in the space area 192 between the second sealing plate 163 and the movable plate 124 as the water pressure magnitude at the first port 111.

It is understood that, similar to the first sealing plate 18, a fifth mounting groove 1241 is provided on the plate edge of the movable plate 124, and a fifth sealing ring 1242 is provided in the fifth mounting groove 1241. Thus, the plate edge of the movable plate 124 is in sealing contact with the inner wall of the first passage 113, and the sealing performance can be ensured. Optionally, the movable plate 124 is provided with a fifth mounting groove 1241 for receiving the through hole wall of the driving rod 122, and a fifth sealing ring 1242 is installed in the fifth mounting groove 1241, or the movable plate 124 and the driving rod 122 are integrated, so that the fifth sealing ring 1242 is not required.

Similarly to the first sealing plate 18, a sixth mounting groove 1631 is provided on the plate edge of the second sealing plate 163, and a sixth sealing ring 1632 is provided in the sixth mounting groove 1631, and the plate of the second sealing plate 163 is in sealing contact with the inner wall of the first passage 113 through the sixth sealing ring 1632, thereby ensuring sealing performance. Of course, the second seal plate 163 may be integrated with the first pipe 16, and in this case, the sixth seal ring 1632 is not required.

The driving rod 122 may or may not pass through the second sealing plate 163, and is not limited herein and may be provided according to actual requirements.

In an infringement comparison, the "first seal plate 18" and the "second seal plate 163" may be both "a part of the first pipe body 16", that is, the "first seal plate 18" and the "second seal plate 163" may be both integrally manufactured with "the other part of the first pipe body 16"; the "first seal plate 18" and the "second seal plate 163", which may be separate members from the "other portion of the first pipe body 16", may be manufactured separately and integrated with the "other portion of the first pipe body 16".

Referring to fig. 1 to 3 and 7, in an embodiment, a gas water heater includes a condensed water discharging assembly 10 according to any of the above embodiments, and further includes a water inlet/outlet pipe 20 and a condensed water discharging pipe 30. The first port 111 is in communication with the inlet/outlet pipe 20, and the second port 112 is in communication with the condensate discharge pipe 30.

In the gas water heating device, the first interface 111 is communicated with the water inlet pipe 20 and the water outlet pipe 20 of the gas water heating device, and the second interface 112 is communicated with the condensed water discharge pipe 30 of the gas water heating device. When a certain amount of condensed water is collected in the condensed water discharge pipe 30 of the gas water heating equipment, the moving member 12 carries the first check valve 13 to move from the first position toward the first connector 111 and synchronously opens the switch valve 14, so that the volume of the variable space 15 is increased, the condensed water collected in the condensed water discharge pipe 30 enters the variable space 15 through the first connector 111, and the water flow direction of the first check valve 13 is from the water inlet end of the first check valve 13 to the water outlet end of the first check valve 13, that is, the water in the water inlet/outlet pipe 20 cannot flow back to the variable space 15 through the first check valve 13; when the movable member 12 carries the first check valve 13 and moves to a second position close to the first connector 111, the movable member 12 carries the first check valve 13 to change the moving direction, the switch valve 14 is synchronously closed, the variable space 15 gradually decreases along with the movement of the movable member 12, the water pressure in the variable space 15 increases in the process that the volume of the variable space 15 decreases, and when the water pressure in the variable space 15 is greater than the water pressure in the water inlet and outlet pipe 20, the first check valve 13 is switched from the closed state to the open state, and the condensed water in the variable space 15 is discharged into the water inlet and outlet pipe 20 through the first check valve 13. By reciprocating in this way, the condensed water collected in the condensed water discharge pipe 30 can be completely discharged into the water inlet and outlet pipe 20, the generated condensed water can be effectively treated and discharged, and the product performance is improved.

Further, when the condensate discharging assembly 10 is specifically installed in the gas water heating device, the condensate discharging assembly 10 is disposed below the bottom of the condensate discharging pipe 30, the housing 11 is placed in a horizontal posture with the first channel 113, the second interface 112 faces away from the ground and is upwardly communicated with the bottom end of the condensate discharging pipe 30, and the first interface 111 is communicated with the water inlet and outlet pipe 20 of the gas water heating device. Therefore, after certain condensed water is collected in the condensed water discharge pipe 30, the condensed water is directly pressed into the variable space 15 through the self gravity and the wind pressure of the gas water heater, which is beneficial for the condensed water discharge pipe 30 to discharge the condensed water, and can better prevent the condensed water in the variable space 15 from flowing back to the condensed water discharge pipe 30.

Further, the gas water heating apparatus further includes a water level detector 50 provided on the condensed water discharge pipe 30, and a controller; the controller is electrically connected to the moving member 12 and the water level detector 50, respectively. In this way, the water level detector 50 can detect the water level inside the condensed water discharge pipe 30, and when the water level inside the condensed water discharge pipe 30 is detected to be higher than the preset position, the controller will control the moving member 12 to move to the adjusting position, so as to timely discharge the condensed water collected inside the condensed water discharge pipe 30 to the outside. It is understood that the water level detector 50 may not be provided, but a float switch may be provided inside the condensed water discharge pipe 30, for example, to control the level of the condensed water discharge pipe 30 by the float switch, and to discharge the condensed water to the outside in conjunction with the controller to control the movement of the moving member 12 when the water level inside the condensed water discharge pipe 30 is higher than a preset position.

Further, a filter and/or a ph regulator is disposed on the condensed water discharge pipe 30. Therefore, the filter can effectively filter impurities in the condensed water and improve the quality of the water. The pH value regulator can effectively neutralize the acidity in the condensed water and improve the water quality.

Referring to fig. 1 to 3 and 7, in one embodiment, a method for discharging condensed water of a gas water heater according to any one of the above embodiments includes the following steps:

the variable space 15 is in a water inlet and storage state, the moving member 12 carries the first check valve 13 to move from the first position to the direction of the first connector 111 and synchronously opens the switch valve 14, and during the process that the moving member 12 carries the first check valve 13 to move to the second position close to the first connector 111, the condensed water collected by the condensed water discharge pipe 30 enters the variable space 15 through the first connector 111;

the variable space 15 is in a drainage state, the moving member 12 carries the first check valve 13 to change the moving direction and move towards the first position, the switch valve 14 is synchronously closed, and in the process that the moving member 12 carries the first check valve 13 and moves from the second position to the first position, the condensed water in the variable space 15 is discharged into the water inlet and outlet pipe 20 through the first check valve 13.

in the above-mentioned condensed water discharging method for gas water heating equipment, the water inlet and storage state and the water discharge state are reciprocated, so that the condensed water collected in the condensed water discharging pipe 30 can be completely discharged into the water inlet and outlet pipe 20, the generated condensed water can be effectively treated and discharged, and the product performance is improved.

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

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" 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," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Claims

1. A condensate drain assembly (10), characterized in that the condensate drain assembly (10) comprises:

the device comprises a shell (11), wherein the shell (11) comprises a first pipe body (16) provided with a first channel (113) and a second pipe body (17) arranged on the pipe wall of the first pipe body (16); a first water hole (161) is formed in the pipe wall of the first pipe body (16) and is communicated with the second pipe body (17) through the first water hole (161); a first port (111) is arranged at one end of the first pipe body (16), and a first sealing plate (18) is fixedly arranged on the inner wall of the first pipe body (16); the end port of the second pipe body (17) far away from the first pipe body (16) is a second interface (112); the first interface (111) is used for being communicated with a water inlet pipe (20) and a water outlet pipe (20) of the gas water heating equipment, and the second interface (112) is used for being communicated with a condensed water discharge pipe (30) of the gas water heating equipment;

the moving member (12) and the first one-way valve (13), the moving member (12) is connected with the first one-way valve (13) and used for driving the first one-way valve (13) to move back and forth in the first channel (113), the outer wall of the first one-way valve (13) is in sealing fit with the inner wall of the first channel (113), the water outlet end of the first one-way valve (13) is communicated with the first interface (111), the first one-way valve (13) and the first water hole (161) are both closer to the first interface (111) relative to the first sealing plate (18), and the water inlet end of the first one-way valve (13) is far away from the first interface (111) relative to the water outlet end of the first one-way valve (13);

the switch valve (14) is arranged on the second interface (112) and used for controlling whether the first channel (113) is communicated with the condensed water discharge pipe (30) or not, a space among the first one-way valve (13), the first sealing plate (18) and the switch valve (14) is a variable space (15), and a water inlet end of the first one-way valve (13) is communicated with the variable space (15).

2. The condensate drain assembly (10) according to claim 1, wherein the on-off valve (14) is a second one-way valve having a water inlet end for communicating with the condensate drain pipe (30) and a water outlet end communicating with the variable space (15).

3. The condensate drain assembly (10) of claim 2, wherein an outer wall of the second one-way valve sealingly engages an inner wall of the second port (112), the second one-way valve being fixedly disposed on the inner wall of the second port (112).

4. The condensate drain assembly (10) according to claim 1, wherein the on-off valve (14) is fixedly provided on the second pipe body (17).

5. The condensate drain assembly (10) according to claim 4, wherein the moving member (12) comprises a mounting block (121) and a driving rod (122) connected to the mounting block (121), an outer wall of the mounting block (121) is in sealing engagement with an inner wall of the first passage (113), and the driving rod (122) is used for driving the mounting block (121) to move back and forth in the first passage (113); the mounting block (121) is provided with a mounting hole (1211) for accommodating the first one-way valve (13), and the first one-way valve (13) is arranged on the mounting block (121).

6. The condensate drain assembly (10) according to claim 5, wherein the driving rod (122) is provided with a second water hole (1221) communicating with the mounting hole (1211), and a third water hole (1222) communicating with the second water hole (1221); the first check valve (13) is disposed in the mounting hole (1211) and communicates with the second water hole (1221), and the third water hole (1222) communicates with the variable space (15).

7. The condensate drain assembly (10) according to claim 5, wherein the first sealing plate (18) is provided with a first through hole (181) passing through the driving rod (122), and the driving rod (122) is movably provided in the first through hole (181) along an extending direction of the first passage (113).

8. The condensate drain assembly (10) according to claim 7, wherein the driving rod (122) protrudes outside the housing (11) through the first through hole (181) and is adapted to be connected to a pushing mechanism located outside the housing (11).

9. The condensate drain assembly (10) of claim 7, wherein the moving member (12) further comprises a driving member disposed on the first pipe body (16); the driving piece drives the driving rod (122) to move back and forth in the first channel (113).

10. The condensate drain assembly (10) according to claim 9, wherein the driving member is a motor fixedly disposed on an inner wall of the first passage (113), a gear (123) is disposed on a rotating shaft of the motor, and the driving rod (122) is provided with a strip-shaped tooth (1223) engaged with the gear (123).

11. The condensate drain assembly (10) according to any one of claims 7 to 10, wherein a movable plate (124) is fixedly connected to the driving rod (122), a plate edge of the movable plate (124) is in sealing engagement with an inner wall of the first passage (113) and is movable back and forth in the first passage (113), and the movable plate (124) is further away from the first port (111) than the first sealing plate (18); the first pipe body (16) is a compression space (191) corresponding to a space area between the first sealing plate (18) and the movable plate (124), an air inlet hole (162) is formed in the pipe wall of the first pipe body (16), and the compression space (191) is communicated with the external environment through the air inlet hole (162); a second sealing plate (163) is arranged at the port of the other end of the first pipe body (16), a second channel (164) is arranged in the pipe wall of the first pipe body (16), one end of the second channel (164) is communicated with the first connector (111), and the other end of the second channel (164) is communicated with a space area (192) between the second sealing plate (163) and the movable plate (124).

12. The condensate drain assembly (10) according to any one of claims 7 to 10, wherein a movable plate (124) is fixedly connected to the driving rod (122), a plate edge of the movable plate (124) is in sealing engagement with an inner wall of the first passage (113) and is movable back and forth in the first passage (113), and the movable plate (124) is further away from the first port (111) than the first sealing plate (18); the first pipe body (16) is a compression space (191) corresponding to a space area between the first sealing plate (18) and the movable plate (124), an air inlet hole (162) is formed in the pipe wall of the first pipe body (16), and the compression space (191) is communicated with the external environment through the air inlet hole (162); a second sealing plate (163) is arranged at the other end port of the first pipe body (16), a communicating pipe is arranged on the pipe wall of the first pipe body (16), one end of the communicating pipe is communicated with the first connector (111), and the other end of the communicating pipe is communicated with a space area (192) between the second sealing plate (163) and the movable plate (124).

13. A gas-fired water heating apparatus, comprising a condensate discharge assembly (10) according to any one of claims 1 to 12, further comprising a water inlet and outlet pipe (20) and a condensate discharge pipe (30); the first connector (111) is communicated with the water inlet and outlet pipe (20), and the second connector (112) is communicated with the condensed water discharge pipe (30).

14. The gas-fired water heating apparatus according to claim 13, further comprising a water level detector (50) provided on the condensed water discharge pipe (30), and a controller; the controller is respectively and electrically connected with the moving part (12) and the water level detector (50).

15. Gas-fired water heating plant according to claim 13, characterized in that the condensed water discharge pipe (30) is provided with a filter and/or a ph regulator.

16. A condensate discharging method of a gas-fired water heating apparatus according to any one of claims 13 to 15, comprising the steps of:

the variable space (15) is in a water inlet and storage state, the moving member (12) carries the first one-way valve (13) to move from the first position to the direction of the first connector (111) and synchronously opens the switch valve (14), and in the process that the moving member (12) carries the first one-way valve (13) to move to the second position close to the first connector (111), condensed water collected by the condensed water discharge pipe (30) enters the variable space (15) through the first connector (111);

the variable space (15) is in a drainage state, the moving member (12) carries the first check valve (13) to change the moving direction and moves towards the first position, the switch valve (14) is synchronously closed, and in the process that the moving member (12) carries the first check valve (13) and moves from the second position to the first position, the condensed water in the variable space (15) is discharged into the water inlet and outlet pipe (20) through the first check valve (13).