Waterway module, external bypass water outlet valve and internal bypass water outlet valve
By switching the external bypass and built-in bypass modes in the same outlet valve, the problem of poor adaptability in the prior art is solved, and efficient and low-cost bypass switching is achieved, which is suitable for wall-mounted boiler systems.
Patent Information
- Application Number
- CN202422504281.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-16
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-10-16
AI Technical Summary
In the prior art, waterway modules with built-in bypass and external bypass methods have poor adaptability and require replacement of different models of water outlet valves, which is costly and cumbersome to operate.
A waterway module is designed to realize the switching of external bypass and built-in bypass modes in the same water outlet valve. Through the design of bypass pipe and bypass flow channel, the bypass pipe is connected to the external pipeline in the external bypass mode. The bypass pipe is sealed and connected to the bypass flow channel in the built-in bypass mode, and external pressure relief or built-in pressure relief is adopted.
It improves product applicability, reduces switching costs, achieves fast switching, has strong applicability, high production efficiency, and saves space.
Smart Images
Figure CN223090062U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of integrated heating water circuits, in particular to a water circuit module, an external bypass outlet valve and an internal bypass outlet valve. Background Art
[0002] The water circuit module is usually installed in a wall-mounted boiler system for realizing the connection and switching of pipelines. The water circuit module generally includes an inlet valve, an outlet valve and a heat exchanger connected between the inlet valve and the outlet valve. The bypass is a component of the outlet valve in the wall-mounted boiler water circuit module, and the bypass functions to relieve pressure on the heating pipeline when the water pressure in the heating pipeline is too high. In the prior art, according to the needs of customers, the bypass is mainly divided into an internal bypass and an external bypass. The two bypass methods respectively correspond to different models of outlet valve bodies, and the adaptability of the product is poor. When the customer needs to change different bypass methods, it is also necessary to replace the corresponding model of the outlet valve, which is costly and cumbersome to operate. Summary of the Utility Model
[0003] The first object of the utility model is to provide a water circuit module, whether it is an internal bypass or an external bypass, which can be realized in the same outlet valve, with strong product applicability, low switching cost, quick change and high efficiency.
[0004] The second object of the utility model is to provide an external bypass outlet valve, which adopts external pressure relief, and the heating hot water does not pass through the heat exchanger, avoiding the rapid heating of the heat exchanger.
[0005] The third object of the utility model is to provide an internal bypass outlet valve, which adopts internal pressure relief, and the heat exchanger replaces the function of the external pipeline, eliminating the use of the external pipeline, reducing the cost and saving the space occupation.
[0006] To achieve the above object, the utility model adopts the following technical solutions:
[0007] The water circuit module includes an outlet valve, an inlet valve and a heat exchanger connected between the outlet valve and the inlet valve. The outlet valve is provided with a valve port one, a valve port two and a valve port three communicated with the heat exchanger. The valve port one can communicate with the valve port two. The outlet valve is further provided with a bypass pipe and a bypass flow channel. The bypass pipe is communicated with the valve port two. One end of the bypass flow channel can be communicated with the bypass pipe, and the other end is communicated with the valve port three. The water circuit module has an external bypass mode and an internal bypass mode. In the external bypass mode, the free end of the bypass pipe is communicated with the inlet valve through an external pipeline, and the valve port two is communicated with the external pipeline through the bypass pipe. In the internal bypass mode, the free end of the bypass pipe is blocked, and the valve port two is communicated with the bypass flow channel through the bypass pipe.
[0008] As an alternative solution, the bypass pipe has an outlet one and an outlet two. The outlet one can be connected to the inlet valve through the external pipeline. The bypass flow channel is connected to the outlet two and the valve port three. A bypass valve is provided inside the bypass pipe. In the external bypass mode, the bypass valve can connect the valve port two to the outlet one and cut off the connection with the outlet two. In the internal bypass mode, the bypass valve can connect the valve port two to the outlet two and cut off the connection with the outlet one.
[0009] As an alternative solution, the inlet valve is provided with a valve port four. The external pipeline can connect the outlet one and the valve port four. When the valve port two is connected to the bypass flow channel, both the outlet one and the valve port four can be sealed by plugs.
[0010] As an alternative solution, a slot is provided on the periphery of the plug. Two through holes matching the slot are provided on the peripheries of the outlet one and the valve port four. The pin passes through the through hole and is inserted into the slot.
[0011] As an alternative solution, the outlet valve includes an outlet valve body, a three-way valve core and a driving member. The outlet valve body has a valve cavity. One end of the bypass flow channel away from the bypass pipe is connected to the valve port three through the valve cavity. The three-way valve core is arranged in the valve cavity. The driving member is arranged outside the outlet valve body and is connected to the three-way valve core. The driving member can drive the three-way valve core to move along its axial direction so that the valve port one can be connected to the valve port two or the valve port three.
[0012] As an alternative solution, the bypass pipe, the bypass flow channel and the outlet valve body are of an integrally formed structure.
[0013] As an alternative solution, the axis of the valve port two coincides with the axis of the valve cavity. The axis of the bypass pipe is perpendicular to the axis of the valve port one. The axis of the valve port one is perpendicular to the axis of the valve port two and is also perpendicular to the axis of the bypass pipe.
[0014] As an alternative solution, the axis of the bypass flow channel is inclined with respect to the axis of the bypass pipe.
[0015] The external bypass outlet valve includes a valve port one, a valve port two and a valve port three. The valve port three is configured to be connectable to a heat exchanger. The valve port one can be connected to the valve port two or the valve port three. It also includes a bypass pipe. The bypass pipe is connected to the valve port two. The external bypass outlet valve adopts the above-mentioned external bypass mode. The free end of the bypass pipe is connected with an external pipeline. The valve port two is connected to the external pipeline through the bypass pipe.
[0016] The built-in bypass water outlet valve includes a first valve port, a second valve port, and a third valve port. The third valve port is configured to be communicable with a heat exchanger. The first valve port can communicate with the second valve port or the third valve port. It further includes a bypass pipe and a bypass flow path. The bypass pipe is communicated with the second valve port. One end of the bypass flow path is communicated with the bypass pipe, and the other end is communicated with the third valve port. The built-in bypass water outlet valve adopts the above-mentioned built-in bypass mode. The free end of the bypass pipe is always blocked, and the second valve port is communicated with the bypass flow path through the bypass pipe.
[0017] The beneficial effects of the present utility model:
[0018] The present utility model provides a water circuit module that can switch between an external bypass mode and a built-in bypass mode. When external pressure relief is required, the external bypass mode is adopted. By installing an external pipeline at the free end of the bypass pipe to communicate with the inlet valve, the second valve port can be communicated with the external pipeline through the bypass pipe and is cut off from the bypass flow path at the same time. The medium in the bypass pipe can flow into the inlet valve through the external pipeline. When internal pressure relief is required, the built-in bypass mode is adopted. The external pipeline is directly removed, and the free end of the bypass pipe is blocked. The second valve port can be communicated with the bypass flow path through the bypass pipe. The medium in the bypass pipe can flow through the bypass flow path to the third valve port and then through the heat exchanger to the inlet valve. Therefore, for this water circuit module, whether it is external bypass or internal bypass, it can be realized in the same water outlet valve. The product has strong applicability, is convenient for stocking, has high production efficiency, and is convenient and fast to switch, with low cost.
[0019] The present utility model also provides an external bypass water outlet valve that adopts the above-mentioned external bypass mode to achieve external pressure relief. The heating hot water does not pass through the heat exchanger, avoiding the rapid temperature rise of the heat exchanger.
[0020] The present utility model also provides a built-in bypass water outlet valve that adopts the above-mentioned built-in bypass mode to achieve internal pressure relief. The heat exchanger replaces the function of the external pipeline, eliminating the use of the external pipeline, reducing costs, and saving space occupancy. Description of the Drawings
[0021] Figure 1 is the structural schematic diagram of the external bypass of the water circuit module provided by the present utility model Figure 1 ;
[0022] Figure 2 is the cross-sectional view of the external bypass of the water circuit module provided by the present utility model Figure 1 ;
[0023] Figure 3 is the structural schematic diagram of the external bypass of the water circuit module provided by the present utility model Figure 2 ;
[0024] Figure 4It is a schematic structural diagram of a water circuit module provided by the present utility model, with the plate heat exchanger hidden;
[0025] Figure 5 It is a schematic structural diagram of the plate heat exchanger provided by the present utility model;
[0026] Figure 6 It is a cross-section of the external bypass of the water circuit module provided by the present utility model Figure 2 ;
[0027] Figure 7 It is a schematic structural diagram of the internal bypass of the water circuit module provided by the present utility model;
[0028] Figure 8 It is a cross-sectional view of the internal bypass of the water circuit module provided by the present utility model;
[0029] Figure 9 It is Figure 6 The partial enlarged view at position A in
[0030] In the figure:
[0031] 10. Outlet valve; 11. Outlet valve body; 101. Valve cavity; 111. First valve port; 1111. Through hole; 112. Second valve port; 113. Third valve port; 114. Bypass pipe; 1141. First outlet; 1142. Second outlet; 115. Bypass flow channel; 116. Fifth valve port; 117. Seventh valve port; 12. Three-way valve core; 13. Driving member;
[0032] 20. Inlet valve; 21. Fourth valve port; 22. Sixth valve port; 23. Eighth valve port; 24. Ninth valve port; 25. Tenth valve port;
[0033] 30. Heat exchanger; 31. First interface; 32. Second interface; 33. Third interface; 34. Fourth interface;
[0034] 40. External pipeline; 41. Pipe body; 42. Joint;
[0035] 50. Bypass valve; 51. Valve seat; 52. Sealing valve core;
[0036] 60. Plug; 61. Slot; 70. Pin; 80. Limiting plate. Specific embodiments
[0037] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that for the convenience of description, only parts related to the present utility model are shown in the drawings, rather than all the structures.
[0038] In the description of the present utility model, unless otherwise clearly specified and defined, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral body; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0039] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under", and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.
[0040] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.
[0041] This embodiment provides a waterway module, which can be installed in a wall-mounted boiler system and is mainly used to achieve the connection and switching of pipelines. Specifically, as Figures 1 to 5 shown, the waterway module includes a water outlet valve 10, a water inlet valve 20, and a heat exchanger 30 connecting the water outlet valve 10 and the water inlet valve 20. The water outlet valve 10 includes a water outlet valve body 11, a three-way valve core 12, and a driving member 13. The water outlet valve body 11 has a valve cavity 101, and is provided with a first valve port 111, a second valve port 112, and a third valve port 113 that are respectively communicated with the valve cavity 101. The three-way valve core 12 is arranged in the valve cavity 101. The driving member 13 can be selected as a synchronous motor or a stepper motor. The driving member 13 is arranged outside the water outlet valve body 11 and is connected to the three-way valve core 12. The driving member 13 can drive the three-way valve core 12 to move along its axial direction so that the first valve port 111 can be communicated with the second valve port 112 or the third valve port 113. The first valve port 111 is connected to a heat source through a pipeline for the inflow of hot water; the second valve port 112 is connected to a heating pipeline for the outflow of hot water to achieve heating.
[0042] As Figure 4 andFigure 5 As shown, the water outlet valve body 11 is further provided with a seventh valve port 117, which is arranged side by side with the third valve port 113. The inlet valve 20 is provided with an eighth valve port 23 and a ninth valve port 24. The third valve port 113 of the water outlet valve 10 is connected to the first interface 31 of the heat exchanger 30, the seventh valve port 117 is connected to the second interface 32 of the heat exchanger 30, the eighth valve port 23 of the inlet valve 20 is connected to the third interface 33 of the heat exchanger 30, and the ninth valve port 24 is connected to the fourth interface 34 of the heat exchanger 30. The heat exchanger 30 has a hot water channel and a cold water channel. The first interface 31 and the third interface 33 are communicated with the hot water channel, and the second interface 32 and the fourth interface 34 are communicated with the cold water channel. The hot water flowing through the hot water channel can exchange heat with the cold water flowing through the cold water channel. The bottom of the water outlet valve body 11 is further provided with a fifth valve port 116, which is communicated with the seventh valve port 117. The fifth valve port 116 is the domestic hot water outlet. The hot water after heat exchange in the cold water channel flows out from the seventh valve port 117 to the fifth valve port 116 for users to use. The inlet valve 20 is further provided with a sixth valve port 22 and a tenth valve port 25. The sixth valve port 22 is communicated with the ninth valve port 24, and the tenth valve port 25 is communicated with the eighth valve port 23. The sixth valve port 22 is connected to an external water source for supplying water to the cold water channel, and the tenth valve port 25 is connected to a water pump. The water pump transports the medium back to the heat source to form a medium circulation.
[0043] In the heating state, the first valve port 111 is communicated with the second valve port 112 and is cut off from the third valve port 113. The hot water flowing in from the first valve port 111 flows through the second valve port 112 to the heating pipeline and then is transported back to the heat source by the water pump to form a medium circulation. In the bathroom state, the first valve port 111 is communicated with the third valve port 113 and is cut off from the second valve port 112. The hot water flowing in from the first valve port 111 flows through the third valve port 113 to the hot water channel of the heat exchanger 30, and then flows through the eighth valve port 23 of the inlet valve 20 to the water pump at the tenth valve port 25. The water pump transports the medium back to the heat source to form a medium circulation. At the same time, the external cold water flows from the sixth valve port 22 to the ninth valve port 24, and then flows into the cold water channel of the heat exchanger 30. The cold water in the cold water channel exchanges heat with the hot water in the hot water channel and then flows out from the seventh valve port 117 to the fifth valve port 116, and then flows to the bathroom pipeline to supply water for the bathroom for users to use. In this embodiment, the heat exchanger 30 is a plate heat exchanger. Of course, in other embodiments, the heat exchanger 30 is not only a plate heat exchanger.
[0044] Further, as Figure 3 and Figure 6 As shown, a bypass pipe 114 and a bypass flow path 115 are also provided on the water outlet valve body 11. In the heating state, the bypass pipe 114 communicates with the second valve port 112, one end of the bypass flow path 115 can communicate with the bypass pipe 114, and the other end communicates with the third valve port 113. This water circuit module has an external bypass mode and an internal bypass mode. In the external bypass mode, the free end of the bypass pipe 114 is connected to the inlet valve 20 through an external pipeline 40, and the second valve port 112 communicates with the external pipeline 40 through the bypass pipe 114. In the internal bypass mode, the free end of the bypass pipe 114 is blocked, and the second valve port 112 communicates with the bypass flow path 115 through the bypass pipe 114.
[0045] The water circuit module provided in this embodiment can switch between the external bypass mode and the internal bypass mode. When external pressure relief is required, the external bypass mode is adopted. By installing an external pipeline 40 at the free end of the bypass pipe 114 to connect with the inlet valve 20, the second valve port 112 can communicate with the external pipeline 40 through the bypass pipe 114, and at the same time is cut off from the bypass flow path 115. The medium in the bypass pipe 114 can flow into the inlet valve 20 through the external pipeline 40. When internal pressure relief is required, the internal bypass mode is adopted. The external pipeline 40 is directly removed, and the free end of the bypass pipe 114 is blocked. The second valve port 112 can communicate with the bypass flow path 115 through the bypass pipe 114. The medium in the bypass pipe 114 can flow through the bypass flow path 115 to the third valve port 113, and then through the heat exchanger 30 to the inlet valve 20. Therefore, for this water circuit module, whether it is external bypass or internal bypass, it can be realized in the same water outlet valve 10. The product has strong applicability, is convenient for stocking, has high production efficiency, and is convenient and fast to switch, with low cost.
[0046] Specifically, as Figure 3 and Figure 6 shown, the bypass pipe 114 has an outlet one 1141 and an outlet two 1142. The outlet one 1141 is arranged at the axial end of the bypass pipe 114, and the outlet two 1142 is arranged on the circumferential side wall of the bypass pipe 114. The outlet one 1141 can be connected to the fourth valve port 21 of the inlet valve 20 through the external pipeline 40. One end of the bypass flow path 115 is connected to the outlet two 1142, and the other end is connected to the third valve port 113 through the valve cavity 101. A bypass valve 50 is provided in the bypass pipe 114. In the external bypass mode, the bypass valve 50 can connect the second valve port 112 with the outlet one 1141 and cut off the outlet two 1142. In the internal bypass mode, the bypass valve 50 can connect the second valve port 112 with the outlet two 1142 and cut off the outlet one 1141. Among them, the bypass valve 50 can be selected as a one-way valve, and the one-way valve is used for the one-way conduction between the second valve port 112 and the bypass pipe 114 to prevent water from flowing back.
[0047] When the water circuit of the water circuit module provided in this embodiment is in the heating state, as Figure 3 and Figure 6As shown in the figure, when external pressure relief is required, an external pipeline 40 is installed at the outlet 1141 of the bypass pipe 114 to communicate with the fourth valve port 21 of the inlet valve 20. When the medium pressure in the pipeline is greater than the pressure set by the bypass valve 50, the bypass valve 50 opens, the second valve port 112 directly communicates with the external pipeline 40, and at the same time is cut off from the bypass flow channel 115. The medium in the bypass pipe 114 can flow into the fourth valve port 21 of the inlet valve 20 through the external pipeline 40, and then flow back to the heat source through the water pump at the tenth valve port 25; as Figure 7 and Figure 8 shown in the figure, when internal pressure relief is required, the external pipeline 40 is directly removed, and the outlet 1141 is blocked by a plug 60. When the bypass valve 50 is opened, the second valve port 112 directly communicates with the bypass flow channel 115. The medium in the bypass pipe 114 can flow through the bypass flow channel 115 to the valve cavity 101, then flow into the hot water channel of the heat exchanger 30 through the third valve port 113, and then flow to the water pump at the tenth valve port 25 through the eighth valve port 23 of the inlet valve 20 to transport the medium back to the heat source. Therefore, for this water circuit module, whether it is external bypass or internal bypass, it can be realized in the same outlet valve 10, can be quickly switched according to customer needs, has strong product applicability, is convenient for stocking, has high production efficiency, and the switching is convenient and fast with low cost.
[0048] That is to say, when the customer needs an external bypass, only an external pipeline 40 needs to be installed between the outlet 1141 of the bypass pipe 114 and the fourth valve port 21 of the inlet valve 20. When the customer needs an internal bypass, only the external pipeline 40 needs to be replaced with a plug 60, and both the outlet 1141 and the valve port 21 can be sealed through the plug 60. Therefore, for this water circuit module, only by replacing some parts, the switching of the bypass flow channel 115 can be realized. Compared with the prior art, there is no need to replace the outlet valve 10 and the inlet valve 20, nor any operation to change its structural form such as drilling in the outlet valve body 11 and the inlet valve 20. The product has strong applicability, low cost for the whole machine to switch the bypass mode, quick change, and high efficiency.
[0049] In an optional embodiment, as Figure 7 and Figure 8 shown in the figure, in order to realize the detachable connection of the plug 60, a slot 61 is provided on the outer peripheral side of the plug 60, and two through holes 1111 matching with the slot 61 are provided on the peripheral sides of the outlet 1141 and the valve port 21. The pin 70 passes through the through holes 1111 and is inserted into the slot 61 to install the plug 60 at the outlet 1141 of the bypass pipe 114. By pulling out the pin 70 from the slot 61 and the through holes 1111, the connection between the plug 60 and the bypass pipe 114 can be disengaged. Through the above settings, the quick installation and disassembly of the plug 60 can be realized, and the operation is convenient.
[0050] It should be noted that in an optional embodiment, the external pipeline 40 can also be detachably connected to the outlet 1141 of the bypass pipe 114 and the fourth valve port 21 of the water inlet valve 20 in the form of the above-mentioned pin insertion. The settings of its through hole 1111 and slot 61 are exactly the same as the above content, and will not be elaborated here.
[0051] In an optional embodiment, the bypass pipe 114, the bypass flow channel 115 and the water outlet valve body 11 are of an integrally formed structure. Such a setting can reduce the production cost, have better structural stability, and is convenient for production and manufacturing.
[0052] As Figure 3 and Figure 6 shown, the axis of the second valve port 112 coincides with the axis of the valve cavity 101, and the axis of the bypass pipe 114 is perpendicular to the axis of the first valve port 111. The axis of the first valve port 111 is perpendicular to the axis of the second valve port 112 and is also perpendicular to the axis of the bypass pipe 114. That is to say, the axes of the first valve port 111, the second valve port 112 and the bypass pipe 114 are perpendicular to each other pairwise. By reasonably setting the positions of the three, it is convenient for the connection of the pipeline and is beneficial to the reasonable layout of the pipeline.
[0053] In an optional embodiment, as Figure 3 and Figure 6 shown, the axis of the bypass flow channel 115 is inclined with respect to the axis of the bypass pipe 114. The inclined bypass flow channel 115 can reduce the overall volume of the water outlet valve body 11.
[0054] In an optional embodiment, as Figure 6 and Figure 9 shown, the external pipeline 40 includes a pipe body 41 and a joint 42 connected to one end of the pipe body 41 close to the bypass pipe 114. The joint 42 is inserted into the bypass pipe 114 and is hermetically connected to the inner wall of the bypass pipe 114. The bypass valve 50 includes a valve seat 51, a sealing valve core 52 axially movable in the valve seat 51 and a return spring (not shown). The valve seat 51 is provided with a water passing hole communicating with the water inlet of the bypass pipe 114. The sealing valve core 52 can seal and close or open the water passing hole. One end of the return spring abuts against the sealing valve core 52, and the other end abuts against the valve seat 51. One end outer wall of the valve seat 51 is closely fitted with the inner wall of the bypass pipe 114, and the other end is inserted into the joint 42 and is hermetically connected to the inner wall of the joint 42.
[0055] During external pressure relief, when the pressure of the medium in the pipeline is greater than the pressure set by the bypass valve 50, the acting force of the medium will push the sealing valve core 52 to the left and compress the return spring. At this time, the water passing hole is opened, allowing the medium to flow into the valve seat 51 through the water passing hole. Since the outer wall of the valve seat 51 is hermetically connected to the inner wall of the joint 42, a sealed channel is formed within the valve seat 51 and the joint 42, and the medium will directly flow into the pipe body 41 through this sealed channel. When the acting force of the medium is less than the elastic force of the return spring, the return spring will drive the sealing valve core 52 to reset. Therefore, by hermetically connecting the outer wall of the valve seat 51 to the inner wall of the joint 42, when the sealing valve core 52 is opened, the communication between the second valve port 112 and the external pipeline 40 can be achieved, and the bypass flow channel 115 can be cut off. During internal pressure relief, as Figure 8 shown, the plug 60 seals the first outlet 1141, and there is a gap between the plug 60 and the valve seat 51. Therefore, when the sealing valve core 52 is opened, the medium can flow into the valve seat 51 through the water passing hole, and then flow into the bypass flow channel 115 through the gap between the valve seat 51 and the plug 60.
[0056] In an alternative embodiment, as Figure 1 shown, the second valve port 112, the fifth valve port 116, and the sixth valve port 22 face the same direction. The waterway module further includes a limiting plate 80, which is fixedly connected to the outlet valve 10 and / or the inlet valve 20. The limiting plate 80 is provided with limiting holes for the second valve port 112, the fifth valve port 116, and the sixth valve port 22 to pass through respectively and with shapes adapted to each other. It can be understood that the outlet valve 10 and the inlet valve 20 are only connected to the heat exchanger 30 by screws. During transportation, due to reasons such as vibration and shaking, the inlet valve 20 and the outlet valve 10 are prone to displacement, resulting in loosening of the screws and a risk of leakage. Therefore, by fixing the limiting plate 80 between the inlet valve 20 and the outlet valve 10, the displacement of the inlet valve 20 and the outlet valve 10 during transportation can be avoided.
[0057] This embodiment also provides an external bypass outlet valve, which is only used in scenarios where there is a need for an external bypass. The structure of this external bypass outlet valve is basically the same as that of the above-mentioned outlet valve 10, except that the free end of the bypass pipe 114 is in a state of being constantly connected to the external pipeline 40. The bypass flow channel 115 can be cancelled, or the above-mentioned outlet valve 10 can be directly used as this external bypass outlet valve, but the bypass flow channel 115 is not used. Taking the structure of the outlet valve 10 as a reference, specifically, refer to Figure 3, the external bypass water outlet valve includes a first valve port 111, a second valve port 112, and a third valve port 113. The third valve port 113 is configured to be communicable with the heat exchanger 30. The first valve port 111 can communicate with the second valve port 112 or the third valve port 113. It further includes a bypass pipe 114 with a bypass valve 50 disposed therein. The bypass pipe 114 communicates with the second valve port 112. The external bypass water outlet valve only adopts the above-mentioned external bypass mode. In the external bypass mode, a free end of the bypass pipe 114 is connected to an external pipeline 40, and the second valve port 112 communicates with the external pipeline 40 through the bypass pipe 114. In the heating state, after the bypass valve 50 is opened, the heating hot water in the bypass pipe 114 can flow into the inlet valve 20 through the external pipeline 40, thereby realizing external pressure relief. The heating hot water does not pass through the heat exchanger 30, avoiding rapid temperature rise of the heat exchanger 30.
[0058] This embodiment further provides an internal bypass water outlet valve, which is only used in scenarios with internal bypass requirements. The structure of this internal bypass water outlet valve is basically the same as that of the above-mentioned water outlet valve 10, with the only difference being that the free end of the bypass pipe 114 is in a normally blocked state. The above-mentioned water outlet valve 10 can be directly used as this internal bypass water outlet valve by blocking the free end of the bypass pipe 114. Taking the structure of the water outlet valve 10 as a reference, specifically, refer to Figure 7 , the internal bypass water outlet valve includes a first valve port 111, a second valve port 112, and a third valve port 113. The third valve port 113 is configured to be communicable with the heat exchanger 30. The first valve port 111 can communicate with the second valve port 112 or the third valve port 113. It further includes a bypass pipe 114 and a bypass flow channel 115. A bypass valve 50 is disposed in the bypass pipe 114. The bypass pipe 114 communicates with the second valve port 112. One end of the bypass flow channel 115 communicates with the bypass pipe 114, and the other end communicates with the third valve port 113. The internal bypass water outlet valve only adopts the above-mentioned internal bypass mode. In the internal bypass mode, the free end of the bypass pipe 114 is always blocked by a plug 60, and the second valve port 112 communicates with the bypass flow channel 115 through the bypass pipe 114. In the heating state, after the bypass valve 50 is opened, the heating hot water in the bypass pipe 114 can flow through the bypass flow channel 115 to the third valve port 113, and then flow through the heat exchanger 30 to the inlet valve 20, thereby realizing internal pressure relief. The heat exchanger 30 replaces the function of the external pipeline 40, eliminating the use of the external pipeline 40, reducing costs, and saving space occupancy.
[0059] It should be noted that for the above three different forms of bypass pressure relief methods, users can adaptively select the corresponding water outlet valve and bypass pressure relief method according to the actual usage conditions and different requirements.
[0060] Obviously, the above embodiments of the present utility model are merely examples for clearly illustrating the present utility model, rather than limitations on the implementation manners of the present utility model. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present utility model. It is not necessary and impossible to enumerate all implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the claims of the present utility model.
Claims
1. Waterway module, including a water outlet valve (10), a water inlet valve (20) and a heat exchanger (30) connecting the water outlet valve (10) and the water inlet valve (20). The water outlet valve (10) is provided with a first valve port (111), a second valve port (112) and a third valve port (113) communicating with the heat exchanger (30). The first valve port (111) can communicate with the second valve port (112), and is characterized in that, The water outlet valve (10) is further provided with a bypass pipe (114) and a bypass flow passage (115). The bypass pipe (114) communicates with the second valve port (112). One end of the bypass flow passage (115) can communicate with the bypass pipe (114), and the other end communicates with the third valve port (113). The waterway module has an external bypass mode and an internal bypass mode. In the external bypass mode, the free end of the bypass pipe (114) communicates with the inlet valve (20) through an external pipeline (40), and the second valve port (112) communicates with the external pipeline (40) through the bypass pipe (114). In the internal bypass mode, the free end of the bypass pipe (114) is blocked, and the second valve port (112) communicates with the bypass flow passage (115) through the bypass pipe (114).
2. The waterway module according to claim 1, wherein The bypass pipe (114) has a first outlet (1141) and a second outlet (1142). The first outlet (1141) can communicate with the inlet valve (20) through the external pipeline (40). The bypass flow passage (115) communicates between the second outlet (1142) and the third valve port (113). A bypass valve (50) is provided inside the bypass pipe (114). In the external bypass mode, the bypass valve (50) can connect the second valve port (112) to the first outlet (1141) and cut off the second outlet (1142). In the internal bypass mode, the bypass valve (50) can connect the second valve port (112) to the second outlet (1142) and cut off the first outlet (1141).
3. The waterway module according to claim 2, characterized in that, The inlet valve (20) is provided with a fourth valve port (21). The external pipeline (40) can connect the first outlet (1141) and the fourth valve port (21). When the second valve port (112) communicates with the bypass flow passage (115), both the first outlet (1141) and the fourth valve port (21) can be sealed by a plug (60).
4. The waterway module according to claim 3, characterized in that, A slot (61) is provided on the periphery of the plug (60). Two through holes (1111) matching the slot (61) are provided on the peripheries of the first outlet (1141) and the fourth valve port (21). A pin (70) passes through the through holes (1111) and is inserted into the slot (61).
5. The waterway module according to claim 1, characterized in that The water outlet valve (10) includes a water outlet valve body (11), a three-way valve core (12), and a driving member (13). The water outlet valve body (11) has a valve cavity (101). One end of the bypass flow passage (115) far from the bypass pipe (114) communicates with the third valve port (113) through the valve cavity (101). The three-way valve core (12) is arranged in the valve cavity (101). The driving member (13) is arranged outside the water outlet valve body (11) and is connected to the three-way valve core (12). The driving member (13) can drive the three-way valve core (12) to move along its axial direction so that the first valve port (111) can communicate with the second valve port (112) or the third valve port (113).
6. The waterway module according to claim 5, wherein The bypass pipe (114), the bypass flow channel (115) and the water outlet valve body (11) are of an integrally formed structure.
7. The waterway module according to claim 5, characterized in that, The axis of the second valve port (112) coincides with the axis of the valve cavity (101). The axis of the bypass pipe (114) is perpendicular to the axis of the first valve port (111). The axis of the first valve port (111) is perpendicular to the axis of the second valve port (112) and is also perpendicular to the axis of the bypass pipe (114).
8. The waterway module according to claim 7, wherein, The axis of the bypass flow channel (115) is inclined with respect to the axis of the bypass pipe (114).
9. External bypass water outlet valve, including valve port one (111), valve port two (112) and valve port three (113), the valve port three (113) is configured to be able to communicate with the heat exchanger (30), the valve port one (111) can communicate with the valve port two (112) or the valve port three (113), characterized in that, It further includes a bypass pipe (114). The bypass pipe (114) communicates with the second valve port (112). The external bypass water outlet valve adopts the external bypass mode as described in claim 1. The free end of the bypass pipe (114) is connected to an external pipeline (40). The second valve port (112) communicates with the external pipeline (40) through the bypass pipe (114).
10. The built-in bypass water outlet valve includes a first valve port (111), a second valve port (112), and a third valve port (113). The third valve port (113) is configured to be communicable with the heat exchanger (30). The first valve port (111) can communicate with the second valve port (112) or the third valve port (113). It is characterized in that, It further includes a bypass pipe (114) and a bypass flow channel (115). The bypass pipe (114) communicates with the second valve port (112). One end of the bypass flow channel (115) communicates with the bypass pipe (114), and the other end communicates with the third valve port (113). The internal bypass water outlet valve adopts the internal bypass mode as described in claim 1. The free end of the bypass pipe (114) is always blocked. The second valve port (112) communicates with the bypass flow channel (115) through the bypass pipe (114).