CN213686245U - Water outlet valve and waterway assembly system - Google Patents

Abstract

The utility model relates to the technical field of valves, especially relate to waterway system's water intaking valve and waterway component system. A water outlet valve is connected with a heat exchange structure in a waterway component system and comprises a second valve part, wherein the second valve part is provided with a first communication interface, a second communication interface, a third communication interface and a domestic water outlet interface, and the first communication interface is connected with the heat exchange structure; the first communication interface, the second communication interface and the third communication interface can form a second flow path which can circulate in a one-way mode, and water in the second flow path can circularly pass through the heat exchange structure to exchange heat so as to provide domestic hot water for the domestic water outlet interface. The utility model has the advantages that: can make the hydroenergy in the second flow path can circulate ground and heat transfer structure heat transfer, guarantee that the water in the second flow path is hot always, when the user needs hot water, can obtain hot water at once, need not to wait for, avoid causing the water waste.

Description

Water outlet valve and waterway assembly system

Technical Field

The utility model relates to the technical field of valves, especially, relate to water intaking valve and water route subassembly system.

Background

The waterway component system is a water heater using natural gas as energy source, and is used for heating and providing domestic hot water. The existing waterway assembly system has the advantages that when hot water is needed, a user can obtain the hot water after cold water in a pipeline is discharged, so that waste of water resources is caused, and user experience is influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a water outlet valve, technical scheme is as follows:

a water outlet valve is connected with a heat exchange structure in a waterway component system and comprises a second valve part, wherein the second valve part is provided with a first communication interface, a second communication interface, a third communication interface and a domestic water outlet interface; the first communication interface, the second communication interface and the third communication interface can form a second circulation loop which can circulate in a one-way mode, and water in the second circulation loop can circularly pass through the heat exchange structure to exchange heat so as to provide domestic hot water for the domestic water outlet interface.

So set up, can make the hydroenergy in the second flow path can circulate ground and heat transfer structure heat transfer, guarantee that the water in the second flow path is hot always, when the user needs hot water, can obtain hot water at once, need not to wait for, avoid causing the water waste.

In one embodiment, the waterway assembly system includes a power element, the second communication interface is used for connecting with an inlet of the power element, and the third communication interface is used for connecting with an outlet of the power element.

The arrangement can reduce the impact of water flow on elements such as a water flow sensor, a flow limiting ring and the like on the water inlet valve, and can effectively protect the elements.

In one embodiment, the second communication port is opposite to the first communication port, and the third communication port and the second communication port are independent and isolated from each other in the second valve portion.

So set up, easy to assemble, and can provide the space for connecting other components between second intercommunication interface and the third intercommunication interface.

In one embodiment, the water outlet valve includes a three-way valve portion communicated with the heat exchange structure, a three-way valve cavity is opened in the three-way valve portion, and the three-way valve cavity is partitioned from the first communication interface, the second communication interface, and the third communication interface in the second valve portion.

So set up, can protect the component in the three-way valve chamber from the influence of power component.

In one embodiment, the outlet valve further includes a valve core assembly located in the three-way valve cavity, the valve core assembly is capable of moving along the axial direction of the outlet valve, the valve core assembly includes a valve rod, a first seal seat and a second seal seat, a first sleeve is disposed in the three-way valve cavity, the valve cavity includes a second cavity, a first cavity and a heating outlet cavity, and the first seal seat and the second seal seat are capable of respectively cooperating with the first sleeve to selectively block a gap between the second cavity and the first cavity or a gap between the first cavity and the heating outlet cavity.

The three-way switching is realized.

In one embodiment, a bypass flow channel and a water outlet channel are formed in the three-way valve portion, the heating water outlet cavity is communicated with the bypass flow channel, the second cavity is communicated with the water outlet channel and the bypass flow channel, respectively, and a first one-way valve is arranged in the bypass flow channel and used for one-way communication of water from the bypass flow channel to the second cavity.

With the arrangement, when the valve core assembly is positioned at the upper part and needs to move downwards, water can flow into the first cavity from the water inlet and then flows into the heating water outlet cavity from the first cavity, and part of water flows into the second cavity from the heating water outlet cavity, so that the pressure in the second cavity and the pressure in the first cavity are balanced, the valve core assembly can smoothly move downwards, and the situation that the valve core assembly cannot move downwards due to the fact that the valve core assembly is propped against by high pressure is avoided.

In one embodiment, the three-way valve portion is further provided with an insertion hole communicated with the water outlet channel, and the insertion hole is used for inserting a measuring element.

With this arrangement, the state of water in the water passage can be detected.

The utility model discloses still provide following technical scheme:

a waterway assembly system comprises a water inlet valve, a heat exchange structure and the water outlet valve, wherein a domestic water inlet interface and a second water outlet interface are formed in the water inlet valve, the second water outlet interface is connected to the heat exchange structure, the domestic water inlet interface is communicated with the second water outlet interface to form a first flow path, and the second flow path and the first flow path are communicated through the domestic water outlet interface and the heat exchange structure to form a second circulation loop.

So set up, when the user needs the water, can in time obtain hot water, improve user experience and improve the utilization ratio of water resource.

In one embodiment, the waterway assembly system further includes a water outlet end, the water outlet end is connected to the domestic water outlet port, a second one-way valve is disposed on the second circulation loop, an inlet of the second one-way valve is connected to the domestic water outlet port and the water outlet end, and an outlet of the second one-way valve is connected to the domestic water inlet port.

So set up, can prevent that unheated water from flowing back to play water end and flowing out.

In one embodiment, the waterway assembly system further includes a combustion chamber, the water outlet valve is provided with an inflow interface, two ends of the combustion chamber are respectively connected to the inflow interface and the water inlet valve, the combustion chamber, the inflow interface and the water inlet valve can form a first circulation loop, and water in the first circulation loop and water in the second circulation loop exchange heat through the heat exchange structure.

Compared with the prior art, the utility model provides a pair of outlet valve, through inciting somebody to action form the second flow path of one-way circulation between first intercommunication interface, second intercommunication interface and the third intercommunication interface, water in the second flow path can acquire the heat through heat transfer structure with one-way circulation to make the water in the second flow path always hot, the user can obtain hot water immediately, need not to put the hot water in the pipeline earlier, avoids causing the waste of water resource.

Drawings

FIG. 1 is a front view of a water outlet valve connecting power element provided by the present invention;

fig. 2 is a flow chart of the waterway assembly system provided by the present invention;

fig. 3 is a partial enlarged view of fig. 2 at D;

fig. 4 is a front view of the outlet valve provided by the present invention;

FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4;

FIG. 6 is a cross-sectional view taken along line B-B of FIG. 4;

fig. 7 is a left side view of the outlet valve provided by the present invention;

FIG. 8 is a cross-sectional view taken along line C-C of FIG. 7;

FIG. 9 is a schematic structural view of the valve core assembly, the first sleeve, and the third fastener;

fig. 10 is a perspective view of the outlet valve provided by the present invention;

FIG. 11 is a schematic view of the structure of the inlet valve;

FIG. 12 is a cross-sectional view of the fill valve.

The symbols in the drawings represent the following meanings:

100. a waterway assembly system; 10. a combustion chamber; 11. a wall-hanging stove circulating pump; 20. a heat exchange structure; 30. a water inlet valve; 31. a domestic water inlet interface; 32. a heating water inlet interface; 33. a second outflow interface; 34. a water pump interface; 40. a water outlet valve; 41. a second valve section; 410. a three-way valve part; 411. a heating water outlet interface; 412. A domestic water outlet port; 413. a first communication interface; 414. a second communication interface; 415. a three-way valve cavity; 4151. a first chamber; 4152. a second chamber; 4152a, a second bypass port; 4153. a heating water outlet cavity; 4153a, a first bypass opening; 4154. a first sleeve; 4155. a first part; 4156. a second section; 4157. a support; 4157a, side bars; 4157b, a cross bar; 4157c, a second sleeve; 416. an inflow interface; 417. a water outlet channel; 4171. a first outflow interface; 418. a bypass flow channel; 4181. a first check valve; 419. a jack; 401. a first fastening hole; 402. a second fastening hole; 403. a third fastening hole; 404. a third fastener; 4041. a second insertion arm; 405. a third communication interface; 42. a connecting pipe; 43. a power element; 44. a valve core assembly; 441. a valve stem; 442. a first seal seat; 443. a second seal seat; 444. a first elastic member; 445. a second elastic member; 45. a drive mechanism; 451. a third fastening groove; 46. a fastening structure; 461. a first fastener; 4611. a first insertion arm; 462. a second fastener; 463. a first fastening block; 4631. a groove; 464. a second fastening block; 50. a second one-way valve; 60. and (5) a water outlet end.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

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 "or/and" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 12, the present invention provides a waterway assembly system 100, which can satisfy the heating requirement of each room, and can provide constant temperature sanitary hot water for use in the home bath and kitchen.

Referring to fig. 2, the waterway assembly system 100 includes a combustion chamber 10, a heat exchange structure 20, a water inlet valve 30 and a water outlet valve 40, wherein the water outlet valve 40 and the water inlet valve 30 are respectively installed at two ends of the heat exchange structure 20, and the water inlet valve 30 and the water outlet valve 40 are respectively connected to the combustion chamber 10 through a pipeline. The combustion chamber 10 is usually installed on a wall in a room, the water inlet valve 30 can provide water for the combustion chamber 10, the water heated by the combustion chamber 10 enters the heat exchange structure 20 through the water outlet valve 40 for heat exchange, and the water after heat exchange returns to the combustion chamber 10 for heating, so as to form a first circulation loop.

And a wall-mounted furnace circulating pump 11 is arranged on the first circulating loop and provides power for water circulation in the first circulating loop. The water inlet valve 30 is also provided with a water pump connector 34, and the wall-hanging stove circulating pump 11 is connected with the water pump connector 34.

Specifically, the outlet valve 40 includes a three-way valve portion 410 and a second valve portion 41 connected to each other, and the three-way valve portion 410 and the second valve portion 41 are integrally formed. One end of the three-way valve portion 410 is provided with a heating water outlet port 411, the water inlet valve 30 is provided with a heating water inlet port 32, the heating water inlet port 32 is communicated with the water pump port 34, a part of water from the combustion chamber 10 enters the heat exchange structure 20 from the water outlet valve 40 for heat exchange, a part of water enters the water outlet valve 40 and flows out from the heating water outlet port 411 of the water outlet valve 40, hot water for heating is provided for a user, and the cooled heating water enters the heating water inlet port 32 of the water inlet valve 30 and returns to the combustion chamber 10 through the water pump port 34 to form a heating water path.

Furthermore, the second valve portion 41 is provided with a domestic water outlet 412, and the waterway assembly system 100 further includes a water outlet 60, wherein the domestic water outlet 412 is connected to the water outlet 60 for providing domestic hot water to a bathroom, a kitchen or other places requiring hot water. The water inlet valve 30 is further provided with a domestic water inlet interface 31 and a second outlet interface 33, the domestic water inlet interface 31 is communicated with the second outlet interface 33 to form a first flow path, the domestic water inlet interface 31 is connected with an external water source, the second outlet interface 33 is connected with the heat exchange structure 20, water entering the domestic water inlet interface 31 passes through the second flow path, enters the heat exchange structure 20 from the second outlet interface 33, exchanges heat with hot water from the combustion chamber 10, and flows out from the domestic water outlet interface 412 after being heated to form a domestic water path.

Referring to fig. 5, the second valve portion 41 is provided with a first communication interface 413 and a second communication interface 414 which are communicated with each other, the first communication interface 413 is connected to the heat exchange structure 20, the second valve portion 41 is further provided with a third communication interface 405 which is communicated with the domestic water outlet interface 412, the first communication interface 413, the second communication interface 414 and the third communication interface 415 can form a second flow path which flows in a unidirectional manner, and water in the second flow path can circularly pass through the heat exchange structure 20 to exchange heat, so as to provide domestic hot water for the domestic water outlet interface 412. It can be understood that, since the water in the second flow path can flow unidirectionally and circularly, the water in the second flow path can be ensured to be always hot, and hot water can be supplied to the domestic water outlet 412 at any time, so that zero cold water supply is realized.

In this embodiment, the heat exchange structure 20 is a plate heat exchanger, and in other embodiments, the heat exchange structure 20 may also be a floor heating or other heat exchange structures as long as it can provide heat for the water in the second flow path.

The first flow path and the second flow path are communicated through the domestic water outlet interface 412 and the heat exchange structure 20 to form a second circulation loop, and water in the first circulation loop and water in the second circulation loop exchange heat through the heat exchange structure 20. The water in the second water circulation loop is always hot and when hot water is needed at the outlet end 60, hot water is directly available. If not set up the second circulation circuit, need through external water source, for example the water pressure of running water makes the rivers in domestic water waterway flow, and in case external water source closes, the water in domestic water waterway loses power, and water in the domestic water waterway can cool off slowly, when the user needs hot water, need to put down the back with cold water in the domestic water waterway, could obtain hot water, cause the not good experience of user and waste water resource.

The first communication port 413 and the second communication port 414 are oppositely arranged, the axis of the second communication port 414 and the axis of the third communication port 405 are arranged in a mutually perpendicular manner, so that a sufficient space is provided between the second communication port 414 and the third communication port 405 for installing other elements, and the second communication port 414 and the third communication port 405 are arranged in the second valve portion 41 in an mutually independent and isolated manner, that is, the second communication port 414 and the third communication port 405 are not communicated in the second valve portion 41, and need to be communicated through an external element, so that the arrangement is convenient for arranging other elements between the two.

The waterway assembly system 100 further includes a connection tube 42 and a power element 43, two ends of the connection tube 42 are respectively connected to the second communication port 414 and the third communication port 405, and the power element 43 is disposed between the first communication port 413 and the third communication port 405 and is respectively connected to the first communication port 413 and the third communication port 405 through the connection tube 42. The power element 43 is used to circulate the water in the second circulation circuit. In this embodiment, the power element 43 is a circulating water pump, and in other embodiments, the circulating power can be formed by the principle of sinking cold water and floating hot water, or by other power elements to circulate water.

It can be understood that there is no component in the second valve portion 41, and the power element 43 is provided in the second valve portion 41, so that there is no damage to the component, and since the front end of the power element 43 has only the first communication port 413 and the second communication port 414, there is no component, so that the flow resistance of water can be reduced. If the water at the front end of the power element 43 has large flow resistance, the power element 43 can be sucked dry, and the pipeline in front of the power element 43 is damaged due to negative pressure; if the power element 43 is disposed on the water inlet valve 30, since the water inlet valve 30 is provided with components (not shown) such as a water flow sensor (not shown) and a restrictor ring, the power generated by the power element 43 may generate an impact force on the components such as the water flow sensor and the restrictor ring, thereby damaging the above components.

The connection pipe 42 is detachably connected to the second communication port 414 and the third communication port 405, respectively, for installation.

With reference to fig. 2, a second one-way valve 50 is disposed in the second circulation loop, an inlet of the second one-way valve 50 is connected to the water outlet 60 and the domestic water outlet 412 of the water outlet valve 40, and an outlet of the second one-way valve 50 is connected to the domestic water inlet 31 of the water inlet valve 30, so as to realize one-way communication between the domestic water outlet 412 of the water outlet valve 40 and the domestic water inlet of the water inlet valve 30, and prevent unheated water from flowing out of the water outlet 60 directly, thereby causing the water obtained by the user to be cold water.

Referring to fig. 8, the three-way valve portion 410 is provided with a three-way valve cavity 415, and the three-way valve cavity 415 is not communicated with the first communication port 413, the second communication port 414, and the third communication port 405, so that the devices in the three-way valve cavity 415 are not affected by the power element 43, and the front end of the power element 43 only has the first communication port 413 and the second communication port 414, which does not increase the flow resistance of water, thereby causing the power element 43 to be dry-pumped.

The three-way valve portion 410 is provided with a water outlet passage 417 communicated with the three-way valve cavity 415, one end of the water outlet passage 417 penetrates through a valve wall of the three-way valve portion 410 to form a first outlet port 4171, the three-way valve portion 410 is further provided with an inlet port 416, the first outlet port 4171 is connected to the heat exchange structure 20, the inlet port 416 is connected to the combustion chamber 10, and hot water from the combustion chamber 10 enters the three-way valve cavity 415 from the inlet port 416 and then enters the first outlet port 4171 or the heating outlet port 411.

Referring to fig. 4, the three-way valve portion 410 further has a plug hole 419, the plug hole 419 is communicated with the water outlet passage 417, the plug hole 419 is used for receiving a measuring element (not shown), and the measuring element is hermetically connected to the plug hole 419 for monitoring the state of the water in the water outlet passage 417, such as measuring the temperature, pressure, and other data of the water.

Referring to fig. 6 and 8, the outlet valve 40 further includes a valve core assembly 44, the valve core assembly 44 is disposed in the three-way valve cavity 415, a first sleeve 4154 is disposed in the three-way valve cavity 415, the valve core assembly 44 and the first sleeve 4154 cooperate to divide the three-way valve cavity 415 into a first cavity 4151, a second cavity 4152 and a heating outlet cavity 4153, the first cavity 4151 is communicated with the inlet port 416, the second cavity 4152 is communicated with the outlet passage 417, and the heating outlet cavity 4153 is communicated with the heating outlet port 411.

Referring to fig. 9, the valve core assembly 44 includes a valve rod 441, a first seal seat 442 and a second seal seat 443, the first sleeve 4154 includes a first portion 4155 and a second portion 4156, the first portion 4155 and the second portion 4156 are respectively connected to the inner wall of the three-way valve chamber 415 in a sealing manner, the first portion 4155 is located between the first chamber 4151 and the second chamber 4152, the second portion 4156 is located between the first chamber 4151 and the heating chamber 4153, the first seal seat 442 can block the first portion 4155, and the second seal seat 443 can block the second portion 4156. The valve rod 441 is disposed in the first sealing seat 442 and the second sealing seat 443 respectively, and the valve rod 441 can move along the axial direction of the outlet valve 40, so as to drive the first sealing seat 442 and the second sealing seat 443 to move along the axial direction of the outlet valve 40. When the valve rod 441 moves upwards, the first sealing seat 442 blocks the first portion 4155, the second sealing seat 443 is spaced from the second portion 4156, and at this time, the inlet port 416, the first cavity 4151, the heating outlet cavity 4153 and the heating outlet port 411 are communicated; when the valve rod 441 moves downwards, the second sealing seat 443 blocks the second portion 4156, the first sealing seat 442 and the first portion 4155 are spaced apart, and at this time, the inlet port 416, the first cavity 4151, the second cavity 4152, the outlet passage 417 and the first outlet port 4171 are communicated, so as to implement three-way switching.

Further, a bracket 4157 is disposed between the first portion 4155 and the second portion 4156, the valve rod 441 is disposed in the bracket 4157, and the bracket 4157 is used for supporting the first portion 4155 and the second portion 4156 and fixing the valve rod 441.

Preferably, the bracket 4157 is "H" shaped, and includes two side bars 4157a and a cross bar 4157b, the two side bars 4157a are respectively disposed on two sides of the valve rod 441, two ends of the two side bars 4157a respectively abut against the first portion 4155 and the second portion 4156, two ends of the cross bar 4157b are respectively connected to the two side bars 4157a, the cross bar 4157b is provided with a second sleeve 4157c, and the valve rod 441 is inserted into the second sleeve 4157 c. With this arrangement, the pressure loss of the water entering from the water inlet port can be reduced while the first portion 4155, the second portion 4156, and the valve rod 441 are supported and guided.

Referring to fig. 6, the outlet valve 40 further includes a driving mechanism 45, the driving mechanism 45 is disposed outside the three-way valve portion 410 and connected to the valve rod 441, the driving mechanism 45 can drive the valve core assembly 44 to reciprocate up and down, a first elastic member 444 is disposed between the first portion 4155 and the driving mechanism 45, a second elastic member 445 is disposed between the second portion 4156 and the first portion 4155, and both the first elastic member 444 and the second elastic member 445 are sleeved outside the valve rod 441 and used for resetting the valve core assembly 44. In this embodiment, the drive mechanism 45 is a synchronous motor, and in other embodiments, the drive mechanism 45 may also be a stepper motor or other drive mechanism 45 depending on the design of the valve core assembly 44.

Specifically, the inner wall of the heating water outlet cavity 4153 is provided with a first bypass hole 4153a, the inner wall of the second cavity 4152 is provided with a second bypass hole 4152a, the three-way valve 410 is provided with a bypass flow channel 418, the bypass flow channel 418 is communicated with the heating water outlet cavity 4153 through the first bypass hole 4153a and is communicated with the second cavity 4152 through the second bypass hole 4152a, the bypass flow channel 418 is provided with a first check valve 4181, and the first check valve 4181 is used for one-way communication of water from the heating water outlet cavity 4153 to the second cavity 4152. When the water pressure in the inlet port 416 is high, the valve core assembly 44 cannot move down due to high pressure, the driving mechanism 45 will work all the time, and the driving mechanism 45 is damaged, and the bypass flow passage 418 can increase the pressure in the second chamber 4152, so that the valve core assembly 44 cannot move down due to high pressure; moreover, since the heating outlet chamber 4153 has a large space, the flow resistance of water entering the bypass flow passage 418 can be reduced by providing the first bypass port 4153a on the inner wall of the heating outlet chamber 4153; the first check valve 4181 prevents water from flowing back from the second chamber 4152 into the heating outlet chamber 4153.

Referring to fig. 1 to 3, the outlet valve 40 further includes a fastening structure 46, and the fastening structure 46 is used for fastening the connection pipe 42 and the second valve portion 41.

Specifically, the fastening structure 46 includes a first fastener 461, a second fastener 462, first and second fastening blocks 463 and 464, the first and second fastening blocks 463 and 464 are fixed to the second valve portion 41, the second valve portion 41 outside the second communication interface 414 is provided with a first fastening hole 401, the first fastening hole 401 is communicated with the second communication interface 414, the second valve portion 41 outside the third communication interface 405 is provided with a second fastening hole 402, the outer side walls of the two ends of the connecting pipe 42 are respectively provided with a first fastening groove (not shown) and a second fastening groove (not shown), the two ends of the connecting pipe 42 are respectively inserted into the second communication interface 414 and the third communication interface 405, and the first and second fastening members 461 and 462 are respectively inserted into the first and second fastening holes 401 and 402 and extend into the first and second fastening grooves, and are respectively abutted against the groove walls of the first and second fastening grooves. The first and second fastening blocks 463 and 464 are used to fasten the first and second fastening members 461 and 462 to fix the connection of the connection pipe 42 and the second valve portion 41.

Further, the first fastening member 461 and the second fastening member 462 are both U-shaped, the first fastening member 461 and the second fastening member 462 are both provided with two first inserting arms 4611, the number of the first fastening hole 401 and the second fastening hole 402 is at least two, the two first inserting arms 4611 of the first fastening member 461 are respectively inserted into the first fastening hole 401 correspondingly, and the two first inserting arms 4611 of the second fastening member 462 are respectively inserted into the second fastening hole 402 correspondingly; grooves 4631 are formed in the side surfaces of the first fastening block 463 and the second fastening block 464, and the first fastening member 461 and the second fastening member 462 are respectively engaged with the grooves 4631 of the first fastening block 463 and the second fastening block 464. In this embodiment, the number of the first fastening holes 401 and the number of the second fastening holes 402 are four, one first inserting arm 4611 of the first fastening member 461 is sequentially inserted into two first fastening holes 401 arranged in parallel, the other first inserting arm 4611 is sequentially inserted into the other two first fastening holes 401 arranged in parallel, one first inserting arm 4611 of the second fastening member 462 is sequentially inserted into two second fastening holes 402 arranged in parallel, and the other first inserting arm 4611 is sequentially inserted into the other two second fastening holes 402 arranged in parallel to fix the first fastening member 461 and the second fastening member 462.

Referring to fig. 8 and 9, a plurality of third fastening holes 403 are circumferentially formed in the three-way valve portion 410, the third fastening holes 403 are circumferentially distributed in an array, third fastening members 404 are inserted into the third fastening holes 403, a third fastening groove 451 is formed in the outer side wall of the driving mechanism 45, the third fastening members 404 include two second insertion arms 4041 which are connected with each other and have a wave shape, and the two second insertion arms 4041 are respectively inserted into the plurality of third fastening holes 403 and abut against the groove walls of the third fastening grooves 451. The wave-shaped third fastening members 404 are easily inserted into the respective third fastening grooves 451.

During operation, under the action of the power element 43, water flows out from the domestic water outlet port 412, passes through the second one-way valve 50, enters the domestic water inlet port 31 of the water inlet valve 30, enters the heat exchange structure 20, exchanges heat with hot water from the combustion chamber 10, enters the water outlet valve 40 through the first communication port 413, flows through the power element 43 from the second communication port 414, enters from the third communication port 405, and flows out through the domestic water outlet port 412, so as to form a zero cold water circulation loop. In this way, it is ensured that the water in the second circulation circuit is always hot. And through setting up power component 43 on outlet valve 40, because power component 43 front end does not have components and parts, can not cause the damage of components and parts, and can not increase the flow resistance of water, can guarantee the normal operating of pipeline.

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 outlet valve is connected with a heat exchange structure (20) in a waterway assembly system, and comprises a second valve part (41), wherein the second valve part (41) is provided with a first communication interface (413), a second communication interface (414), a third communication interface (405) and a domestic water outlet interface (412), the first communication interface (413) is communicated with the second communication interface (414), the domestic water outlet interface (412) is communicated with the third communication interface (405), and the first communication interface (413) is connected with the heat exchange structure (20);

the domestic hot water supply device is characterized in that the first communication interface (413), the second communication interface (414) and the third communication interface (405) can form a second flow path which flows in a one-way mode, and water in the second flow path can circularly exchange heat through the heat exchange structure (20) so as to provide domestic hot water for the domestic water outlet interface (412).

2. The outlet valve of claim 1, wherein the waterway assembly system comprises a powered member (43), the second communication port (414) is adapted to be connected to an inlet of the powered member (43), and the third communication port (405) is adapted to be connected to an outlet of the powered member (43).

3. The outlet valve according to claim 1, characterized in that the second communication port (414) is arranged opposite to the first communication port (413), and the third communication port (405) and the second communication port (414) are arranged independently and in isolation from each other in the second valve part (41).

4. The outlet valve according to claim 1, characterized in that the outlet valve comprises a three-way valve portion (410) communicating with the heat exchange structure (20), a three-way valve cavity (415) is formed in the three-way valve portion (410), and the three-way valve cavity (415) is isolated from the first communication interface (413), the second communication interface (414) and the third communication interface (405) in the second valve portion (41).

5. The outlet valve of claim 4, further comprising a valve core assembly (44) located in the three-way valve chamber (415), the valve core assembly (44) can move along the axial direction of the water outlet valve, the valve core assembly (44) comprises a valve rod (441), a first sealing seat (442) and a second sealing seat (443), a first sleeve (4154) is arranged in the three-way valve cavity (415), the three-way valve cavity (415) comprises a second cavity (4152), a first cavity (4151) and a heating water outlet cavity (4153), the first seal seat (442) and the second seal seat (443) being able to cooperate with the first sleeve (4154), respectively, so as to selectively block the gap between the second cavity (4152) and the first cavity (4151) or the gap between the first cavity (4151) and the heating outlet cavity (4153).

6. The outlet valve according to claim 5, wherein the three-way valve portion (410) further has a bypass flow passage (418) and an outlet flow passage (417), the heating outlet chamber (4153) communicates with the bypass flow passage (418), the second chamber (4152) communicates with the outlet flow passage (417) and the bypass flow passage (418), respectively, and a first check valve (4181) is provided in the bypass flow passage (418), and the first check valve (4181) is used for one-way communication of water from the bypass flow passage (418) to the second chamber (4152).

7. A water outlet valve according to claim 6, characterized in that the three-way valve portion (410) is further provided with an insertion hole (419) communicating with the water outlet channel (417), the insertion hole (419) being used for inserting a measuring element.

8. A waterway assembly system, comprising a water inlet valve (30), a heat exchange structure (20) and the water outlet valve according to any one of claims 1 to 7, wherein the water inlet valve (30) is provided with a domestic water inlet port (31) and a second water outlet port (33), the second water outlet port (33) is connected to the heat exchange structure (20), the domestic water inlet port (31) is communicated with the second water outlet port (33) to form a first flow path, and the second flow path and the first flow path are communicated with the domestic water outlet port (412) and the heat exchange structure (20) to form a second circulation loop.

9. The waterway assembly system of claim 8, further comprising a water outlet end (60), wherein the water outlet end (60) is connected to the living water outlet (412), the second circulation loop is provided with a second one-way valve (50), an inlet of the second one-way valve (50) is connected to the living water outlet (412) and the water outlet end (60), respectively, and an outlet of the second one-way valve (50) is connected to the living water inlet (31).

10. The waterway assembly system of claim 8, further comprising a combustion chamber (10), wherein the outlet valve is provided with an inlet port (416), two ends of the combustion chamber (10) are respectively connected to the inlet port (416) and the inlet valve (30), the combustion chamber (10), the inlet port (416) and the inlet valve (30) can form a first circulation loop, and water in the first circulation loop exchanges heat with water in the second circulation loop through the heat exchange structure (20).

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