Water outlet valve

Abstract

The invention relates to the technical field of valves, and discloses a water outlet valve. The water outlet valve comprises a valve body, a bypass valve element and a pressure relief valve element, the valve body comprises a valve main body and a bypass valve part connected to the valve main body, the valve main body is provided with a three-way valve cavity, a heating channel and a first heat exchange water inlet runner, the three-way valve cavity selectively communicates with the heating channel or the first heat exchange water inlet runner, and the first heat exchange water inlet runner is used for being connected with a heat exchange structure; the bypass valve part is provided with a bypass flow channel and a pressure relief channel; the bypass valve element and the pressure relief valve element are movably arranged in the bypass flow channel in a spaced mode, a pressure relief main cavity is formed by the gap between the bypass valve element and the pressure relief valve element, the pressure relief main cavity communicates with the side, close to the first heat exchange water inlet flow channel, of the three-way valve cavity, and the bypass valve element can selectively open a channel between the heating channel and the pressure relief main cavity. The pressure relief valve element can selectively open a channel between the pressure relief main cavity and the pressure relief channel. The water outlet valve integrates the bypass valve and the safety valve, and is small in size and convenient to install.

Description

Technical Field

[0001] This invention relates to the field of valve technology, and more particularly to a water outlet valve. Background Technology

[0002] A wall-hung boiler water system is a type of water heater that uses natural gas as its energy source. It has a powerful central heating function for the home, which can meet the heating needs of multiple rooms, and can also provide domestic hot water for use in places such as bathing and kitchens.

[0003] The water system of a wall-hung boiler in related technologies typically includes a combustion chamber, a heat exchange structure, an inlet valve, and an outlet valve. The combustion chamber is usually installed on the indoor wall. The inlet valve supplies water to the combustion chamber. The heat exchange structure includes a heat exchange channel and a water supply channel that work together for heat exchange. The outlet valve includes a valve body and a switching device. The valve body is equipped with a hot water inlet, a heating water outlet, a bathroom water outlet, a heat exchange inlet, and a heat exchange outlet. The hot water inlet is connected to the outlet of the combustion chamber. The heat exchange inlet is connected to the inlet of the heat exchange channel. The heat exchange outlet is connected to the outlet of the water supply channel. The bathroom water outlet is connected to the heat exchange outlet. After heat exchange with the heat exchange channel, the water in the water supply channel flows to the bathroom water outlet through the heat exchange outlet to provide hot water for the user. The hot water inlet is switched by the switching device to selectively connect to either the heating water outlet or the heat exchange inlet.

[0004] The valve body is also equipped with a bypass valve for replenishing water to the heat exchange structure, thus preventing damage due to dry burning. The bypass valve also serves to relieve pressure by circulating fluid within the boiler. Additionally, some outlet valves on the market are equipped with a safety valve. This safety valve automatically opens when the internal pressure exceeds a preset pressure, releasing excess gas or hot water to prevent an explosion in the boiler system. However, in existing technology, the bypass valve and safety valve are usually two independent structures on the outlet valve, resulting in a larger overall size, lower space utilization, and inconvenient installation.

[0005] Therefore, there is an urgent need to propose a water outlet valve to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide a water outlet valve that integrates a bypass valve and a safety valve into one unit, which can reduce the overall size of the water outlet valve to a certain extent, facilitate installation, and provide higher safety in use.

[0007] Based on the above concept, the technical solution adopted by this invention is as follows:

[0008] A water outlet valve, comprising:

[0009] The valve body includes a valve main body and a bypass valve section connected to the valve main body. The valve main body has a three-way valve chamber, a heating channel, and a first heat exchange water inlet channel. The three-way valve chamber can selectively connect to the heating channel or the first heat exchange water inlet channel. The first heat exchange water inlet channel is used to connect to a heat exchange structure. The bypass valve section has a bypass channel and a pressure relief channel. The pressure relief channel is connected to the outside.

[0010] A bypass valve core and a pressure relief valve core are spaced apart and movably disposed in the bypass flow channel. The space between the bypass valve core and the pressure relief valve core forms a pressure relief main chamber. The pressure relief main chamber is connected to the side of the three-way valve chamber near the first heat exchange inlet flow channel. The bypass valve core can selectively open the passage between the heating channel and the pressure relief main chamber, and the pressure relief valve core can selectively open the passage between the pressure relief main chamber and the pressure relief channel.

[0011] As a preferred embodiment of the outlet valve provided by the present invention, the spring preload of the pressure relief valve core is greater than the spring preload of the bypass valve core.

[0012] As a preferred embodiment of the outlet valve provided by the present invention, the bypass valve part has an installation port at one end away from the valve body, and the pressure relief valve core is sealed and installed at the installation port.

[0013] As a preferred embodiment of the water outlet valve provided by the present invention, the outlet of the pressure relief channel is arranged facing downwards.

[0014] As a preferred embodiment of the outlet valve provided by the present invention, the bypass valve section is located on the front side of the valve body.

[0015] As a preferred embodiment of the outlet valve provided by the present invention, the axial direction of the bypass valve section extends along the front-to-back direction; or

[0016] The bypass valve section gradually tilts downwards in a direction away from the valve body.

[0017] As a preferred embodiment of the outlet valve provided by the present invention, the bypass valve core is a one-way valve core structure.

[0018] As a preferred embodiment of the water outlet valve provided by the present invention, the valve body also has a hot water inlet that communicates with the three-way valve cavity. The hot water inlet is used to connect to the combustion chamber and is arranged facing upwards.

[0019] As a preferred embodiment of the outlet valve provided by the present invention, the outlet valve further includes a switching mechanism, which is movably disposed in the three-way valve cavity so that the three-way valve cavity selectively connects to the heating channel or the first heat exchange inlet channel.

[0020] As a preferred embodiment of the outlet valve provided by the present invention, the outlet valve further includes a drive mechanism, the output end of which is connected to the switching mechanism to drive the switching mechanism to move in the three-way valve chamber, and the drive mechanism is located on the front side of the valve body.

[0021] The beneficial effects of this invention are as follows:

[0022] This invention provides a water outlet valve. By setting a bypass valve section, and movably setting a bypass valve core and a pressure relief valve core in the bypass flow channel of the bypass valve section, when the three-way valve chamber is connected to the heating channel, when the water pressure in the heating channel is high, the water in the heating channel can push the bypass valve core to move, thereby opening the passage between the heating channel and the pressure relief main chamber. This allows the water in the heating channel to flow through the pressure relief main chamber, the three-way valve chamber, and the first heat exchange inlet flow channel to the heat exchange structure, thereby playing a role in pressure relief and replenishing water to the heat exchange structure, so as to avoid damage to the heat exchange structure due to lack of water and dry burning, thereby ensuring the safety of the heat exchange structure in use. If the pressure in the heating channel is too high, the water circulation within the wall-hung boiler's water system may not be sufficient to relieve the pressure. In this case, the water in the main pressure relief chamber can push the pressure relief valve core to move, opening the passage between the main pressure relief chamber and the pressure relief channel. This allows the pressure in the outlet valve to be released to the outside through the pressure relief channel, thus relieving pressure. When the three-way valve chamber is connected to the first heat exchange inlet channel, if the internal pressure of the valve body is high, the water in the main pressure relief chamber can also push the pressure relief valve core to move, opening the passage between the main pressure relief chamber and the pressure relief channel. This allows the pressure in the outlet valve to be released to the outside through the pressure relief channel, thus relieving pressure. This outlet valve, by placing both the bypass valve core and the pressure relief valve core in the bypass valve section, effectively integrates the bypass valve and safety valve in existing technology into one unit. This reduces the overall size of the outlet valve to a certain extent, facilitating installation and further ensuring the safety of the entire wall-hung boiler's water system. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the water circuit structure of the wall-hung boiler water circuit system provided in an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the water outlet valve provided in an embodiment of the present invention from one perspective;

[0025] Figure 3 This is a schematic diagram of the water outlet valve provided in an embodiment of the present invention from another perspective;

[0026] Figure 4 This is a cross-sectional view of the water outlet valve provided in an embodiment of the present invention;

[0027] Figure 5 yes Figure 4 A magnified view of a portion at point A.

[0028] In the picture:

[0029] 100. Water outlet valve;

[0030] 1. Valve body; 10. Valve main body; 11. Three-way valve section; 110. Three-way valve chamber; 1101. Main valve chamber; 1102. First chamber; 1103. Second chamber; 111. Hot water inlet; 12. Heating valve section; 121. Heating passage; 13. First valve section; 131. First heat exchange inlet water passage; 14. Second valve section; 141. First heat exchange outlet water passage; 142. Bathroom passage; 15. Bypass valve section; 151. Bypass passage; 152. Pressure relief passage;

[0031] 2. Drive mechanism; 3. Switching mechanism; 4. Bypass valve core; 5. Pressure relief valve core;

[0032] 200. Combustion chamber; 201. Hot water outlet;

[0033] 300. Heat exchange structure; 310. Heat exchange channel; 320. Water supply channel;

[0034] 400. Inlet valve; 401. Second heat exchanger inlet channel; 402. Second heat exchanger outlet channel;

[0035] 500, Heating system; 600, Connecting pipes. Detailed Implementation

[0036] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0037] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0038] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0039] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0040] Figure 1 A schematic diagram of the water circuit structure of the wall-hung boiler water circuit system provided in this embodiment is shown. Figure 1 As shown, this embodiment provides a water outlet valve 100, which is applied to the water circuit system of a wall-hung boiler. For ease of understanding, please refer to the following... Figure 1 Briefly describe the specific structure and working principle of the water circuit system of a wall-hung boiler. The water circuit system includes a combustion chamber 200, a heat exchange structure 300, an inlet valve 400, and an outlet valve 100. The combustion chamber 200 heats the water inside. The heat exchange structure 300 includes a heat exchange channel 310 and a water supply channel 320 that are thermally coordinated. The inlet valve 400 supplies water to the combustion chamber 200 and the water supply channel 320. The outlet valve 100 includes a valve body 1, which has a hot water inlet 111, a first heat exchange inlet channel 131, a first heat exchange outlet channel 141, a heating channel 121, and a bathroom channel 142. 111 is connected to the hot water outlet 201 of the combustion chamber 200 via a connecting pipe 600, and the hot water inlet 111 can be selectively connected to the heating channel 121 or the first heat exchange water inlet channel 131; the first heat exchange water inlet channel 131 is connected to the inlet of the heat exchange channel 310, the outlet of the heat exchange channel 310 is connected to the second heat exchange water outlet channel 402 of the inlet valve 400, the inlet of the water supply channel 320 is connected to the second heat exchange water inlet channel 401 of the inlet valve 400, and the outlet of the water supply channel 320 is connected to the first heat exchange water outlet channel 141.

[0041] In use, when the hot water inlet 111 is connected to the heating channel 121, the hot water heated by the combustion chamber 200 flows sequentially through the hot water outlet 201, connecting pipe 600, hot water inlet 111, and heating channel 121 into the heating system 500 to provide heating for users. The water in the heating system 500, after heat exchange with the outside environment, can flow back to the combustion chamber 200 through the inlet valve 400 for reheating, thus forming a heating water circulation loop. When the hot water inlet 111 is connected to the first heat exchange inlet channel 131, the hot water heated by the combustion chamber 200 flows sequentially through the hot water outlet 201, connecting pipe 600, hot water inlet 111, and heating channel 121 into the heating system 500 to provide heating for users. After passing through inlet 201, connecting pipe 600, hot water inlet 111, and first heat exchange inlet channel 131, the water flows into the heat exchange channel 310 of the heat exchange structure 300. After exchanging heat with the water in the supply channel 320, it flows through inlet valve 400 into the combustion chamber 200 to be reheated, thus forming a heat exchange circulation loop. Water from an external water source can flow into the supply channel 320 of the heat exchange structure 300 through inlet valve 400. After exchanging heat with the water in the heat exchange channel 310, it flows through the first heat exchange outlet channel 141 and the bathroom channel 142 to the bathroom system to provide domestic water for users.

[0042] It should be explained that the heating system 500 specifically refers to terminal heat dissipation components such as radiators, underfloor heating pipes, or fan coil units. Water heated in the combustion chamber 200 can be pumped to these terminal heat dissipation components through the outlet valve 100, dissipating heat into the indoor air to raise the indoor ambient temperature and meet the user's heating needs. The bathroom system specifically refers to water-using devices for users to shower, wash, and perform other operations. Therefore, both the heating system 500 and the bathroom system are relatively mature technologies in this field, and the specific structures of the heating system 500 and the bathroom system will not be described in detail in this embodiment.

[0043] This embodiment does not limit the material of the connecting pipe 600, which can be made of copper pipe, corrugated pipe, stainless steel pipe, plastic pipe, etc.

[0044] It should also be noted that the combustion chamber 200 and the water inlet valve 400 are both relatively mature technologies in the field, and the specific structure of the combustion chamber 200 and the water inlet valve 400 will not be described in detail in this embodiment.

[0045] Figure 2 The diagram shows a structural schematic of the outlet valve 100 provided in this embodiment from one perspective. Figure 3 A schematic diagram of the outlet valve 100 provided in this embodiment is shown from another perspective. Figure 4 A cross-sectional view of the outlet valve 100 provided in this embodiment is shown. Figure 5 It shows Figure 4 A magnified view of a portion at point A. (See image below.) Figures 2-5 and combined Figure 1As shown, the outlet valve 100 provided in this embodiment includes a valve body 1, a bypass valve core 4, and a pressure relief valve core 5. The valve body 1 includes a valve main body 10 and a bypass valve section 15. The valve main body 10 has a three-way valve chamber 110, a heating channel 121, and a first heat exchange inlet water channel 131. The three-way valve chamber 110 can selectively connect to the heating channel 121 or the first heat exchange inlet water channel 131. The bypass valve section 15 is connected to the valve main body 10 and has a bypass flow channel 151 and a pressure relief channel 15. 2. The pressure relief channel 152 is connected to the outside; the bypass valve core 4 and the pressure relief valve core 5 are spaced apart and can be movably arranged in the bypass flow channel 151. The space between the bypass valve core 4 and the pressure relief valve core 5 forms the pressure relief main chamber. The pressure relief main chamber is connected to the side of the three-way valve chamber 110 near the first heat exchange inlet flow channel 131. The bypass valve core 4 can selectively open the passage between the heating channel 121 and the pressure relief main chamber. The pressure relief valve core 5 can selectively open the passage between the pressure relief main chamber and the pressure relief channel 152.

[0046] The outlet valve 100 provided in this embodiment, by setting a bypass valve section 15, and movably setting a bypass valve core 4 and a pressure relief valve core 5 in the bypass flow channel 151 of the bypass valve section 15, when the three-way valve chamber 110 is connected to the heating channel 121, when the water pressure in the heating channel 121 is high, the water in the heating channel 121 can push the bypass valve core 4 to move, thereby opening the passage between the heating channel 121 and the pressure relief main chamber, so that the water in the heating channel 121 flows through the pressure relief main chamber, the three-way valve chamber 110 and the first heat exchange inlet flow channel 131 to the heat exchange structure 300, thereby playing a role in pressure relief and replenishing water to the heat exchange structure 300, so as to avoid damage to the heat exchange structure 300 due to lack of water and dry burning, thereby ensuring the heat exchange structure Safety of use of 300; If the pressure in the heating channel 121 is too high, the water circulation inside the wall-hung boiler water system still cannot achieve the effect of pressure relief. At this time, the water in the pressure relief main chamber can push the pressure relief valve core 5 to move, so as to open the passage between the pressure relief main chamber and the pressure relief channel 152, thereby allowing the pressure in the outlet valve 100 to be discharged to the outside through the pressure relief channel 152, thus achieving the effect of pressure relief; When the three-way valve chamber 110 is connected to the first heat exchange inlet channel 131, if the internal pressure of the valve body 1 is high, the water in the pressure relief main chamber can also push the pressure relief valve core 5 to move, so as to open the passage between the pressure relief main chamber and the pressure relief channel 152, thereby allowing the pressure in the outlet valve 100 to be discharged to the outside through the pressure relief channel 152, thus achieving the effect of pressure relief. The outlet valve 100 integrates the bypass valve core 4 and the pressure relief valve core 5 into the bypass valve section 15, which is equivalent to integrating the bypass valve and the safety valve in the prior art. This can reduce the overall size of the outlet valve 100 to a certain extent, making it easier to install, and further ensuring the safety of the entire wall-hung boiler water circuit system.

[0047] Optionally, the spring preload of the pressure relief valve core 5 is greater than that of the bypass valve core 4. The purpose of this arrangement is that when the internal pressure of the valve body 1 is high, pressure relief can be achieved primarily through the internal water circulation of the boiler's water system. Specifically, water in the heating channel 121 opens the bypass valve core 4, flowing through the main pressure relief chamber, the three-way valve chamber 110, and the first heat exchange inlet channel 131 to the heat exchange structure 300. If complete pressure relief cannot be achieved through the internal water circulation of the boiler's water system, the pressure relief valve core 5 opens the passage between the main pressure relief chamber and the pressure relief channel 152 to release the internal pressure of the valve body 1 to the outside. This design reduces the activation frequency of the pressure relief valve core 5, thereby extending its service life.

[0048] For ease of narration, such as Figure 2 As shown, the height direction of the outlet valve 100 after actual installation is defined as the up-down direction. Specifically, the side of the outlet valve 100 closest to the combustion chamber 200 is defined as up, the side of the outlet valve 100 away from the combustion chamber 200 is defined as down, the side of the outlet valve 100 closest to the heat exchange structure 300 is defined as rear, and the side of the outlet valve 100 away from the heat exchange structure 300 is defined as front. When the user stands facing the outlet valve 100, the side of the outlet valve 100 facing the user's right hand is defined as right, and the side of the outlet valve 100 facing the user's left hand is defined as left. Furthermore, the height direction of the valve body 1 refers to the up-down direction, the width direction of the valve body 1 refers to the left-right direction, and the thickness direction of the valve body 1 refers to the front-back direction.

[0049] Optionally, such as Figure 5 As shown, the outlet of the pressure relief channel 152 is set downward so that when the valve body 1 needs to release pressure to the outside, the water flowing from the main pressure relief chamber to the pressure relief channel 152 can flow out quickly under its own gravity, ensuring the timeliness of the pressure relief process.

[0050] like Figures 3-5 As shown, the bypass valve section 15 has an installation port at the end away from the valve body 10, and the pressure relief valve core 5 is sealed and installed at the installation port. It should be explained that in the prior art, the installation port at the end of the bypass valve section 15 away from the valve body 10 is usually detachably connected to a sealing plug. When the operator needs to inspect the bypass valve section 15, the sealing plug can be directly removed, which is convenient and quick. In this embodiment, by setting the pressure relief valve core 5 at the installation port of the bypass valve section 15, the pressure relief valve core 5 acts as a safety valve to further ensure the safety of the outlet valve 100 during use; moreover, the setting of the pressure relief valve core 5 also seals the installation port of the bypass valve section 15, eliminating the need for a sealing plug and reducing processing costs to some extent. After the pressure relief valve core 5 is installed at the installation port, the sealing element of the pressure relief valve core 5 abuts against the inner wall of the installation port, thereby sealing the opening of the bypass flow channel 151.

[0051] In this embodiment, the bypass valve core 4 is a one-way valve core structure, allowing only water in the heating channel 121 to flow through the pressure relief main chamber to the three-way valve chamber 110, thus preventing backflow of water in the three-way valve chamber 110. The one-way valve core structure is a commonly used valve structure in the art, and the specific structure and working principle of the bypass valve core 4 will not be described in detail in this embodiment. Furthermore, this embodiment does not limit the specific structure of the pressure relief valve core 5; any pressure relief valve core in the prior art that can achieve a pressure relief effect is within the protection scope of this embodiment.

[0052] like Figures 2-4 As shown, the valve body 10 includes a three-way valve section 11, a heating valve section 12, a first valve section 13, and a second valve section 14. The three-way valve chamber 110 is located within the three-way valve section 11 and extends in the front-to-back direction. The heating valve section 12 is connected to the three-way valve section 11, and the heating channel 121 is located within the heating valve section 12 and extends in the vertical direction. The first valve section 13 and the second valve section 14 are spaced apart in the vertical direction and are respectively connected to the right side of the three-way valve section 11 and the right side of the heating valve section 12. The first heat exchange inlet channel 131 is located within the first valve section 13, and the first heat exchange outlet channel 141 and the bathroom channel 142 are both located within the second valve section 14 and are connected to each other. The bypass valve section 15 is connected to the heating channel 121. Compared to the existing technology that sets the three-way valve section 11 and the heating valve section 12 coaxially, this embodiment connects the three-way valve section 11 and the heating valve section 12 vertically. This can greatly reduce the size of the valve body 1 in the height direction and make full use of the size of the valve body 1 in the thickness direction, thereby achieving the effect of reducing the height of the valve body 1, and thus reducing the installation height of the entire wall-hung boiler water circuit system to meet the miniaturization requirements of the wall-hung boiler water circuit system.

[0053] It is worth noting that in this embodiment, the three-way valve section 11 is arranged along the front-to-back direction, the heating valve section 12 is connected to the lower part of the three-way valve section 11, and the first valve section 13 and the second valve section 14 are respectively connected to the right side of the three-way valve section 11 and the right side of the heating valve section 12, so that the entire valve body 1 is roughly square in shape, making full use of the space of the valve body 1 in the width and thickness directions, greatly reducing the installation height of the entire wall-hung boiler water circuit system, and optimizing the spatial layout of the entire system.

[0054] To facilitate maintenance of the bypass valve 15 by operators, in this embodiment, the bypass valve 15 is connected to the front side of the heating channel 121. Operators can perform maintenance and repairs on the outlet valve 100 from the front without having to remove the entire outlet valve 100, thus improving the convenience of operation.

[0055] In this embodiment, the axial direction of the bypass valve section 15 is parallel to the axial direction of the three-way valve section 11, meaning that the bypass valve section 15 also extends in the front-to-back direction. This design allows the bypass valve section 15 to be located between the three-way valve section 11 and the heating valve section 12, making the entire outlet valve 100 structure more compact, the bypass connection distance shorter, and thus shortening the response time.

[0056] Of course, in other embodiments, the axial direction of the bypass valve section 15 can also be set at an angle to the axial direction of the three-way valve section 11. In this example, to facilitate maintenance of the bypass valve section 15 by operators, the extension direction of the bypass valve section 15 can be set to gradually slope downwards away from the heating valve section 12, so as to avoid the end of the pressure relief valve core 5 interfering with other structures and affecting the operation of operators.

[0057] like Figure 3 and Figure 4 As shown, the three-way valve chamber 110 includes a second chamber 1103, a main valve chamber 1101, and a first chamber 1102 arranged sequentially in the front-to-back direction. The first chamber 1102 is connected to the heating channel 121, and the second chamber 1103 is connected to the first heat exchange inlet channel 131. The main valve chamber 1101 can selectively connect to either the first chamber 1102 or the second chamber 1103. The hot water inlet 111 is located on the three-way valve section 11 and is connected to the main valve chamber 1101. When the main valve chamber 1101 is connected to the first chamber 1102, the hot water in the combustion chamber 200 can circulate in the heating water circulation loop; when the main valve chamber 1101 is connected to the second chamber 1103, the hot water in the combustion chamber 200 can circulate in the heat exchange circulation loop, so as to selectively provide domestic water or meet the user's heating needs.

[0058] Optionally, the outlet valve 100 further includes a switching mechanism 3, which is movably disposed in the three-way valve chamber 110 to selectively connect the three-way valve chamber 110 to the heating channel 121 or the first heat exchange inlet channel 131. That is, through the movement of the switching mechanism 3 in the three-way valve chamber 110, the passage between the main valve chamber 1101 and the first chamber 1102, or the passage between the main valve chamber 1101 and the second chamber 1103, can be selectively opened, thereby achieving three-way switching. The specific structure and working principle of the switching mechanism 3 will not be described in detail in this embodiment. All switching mechanisms in the prior art that can achieve three-way switching in the three-way valve chamber 110 are within the protection scope of this embodiment.

[0059] Furthermore, the outlet valve 100 also includes a drive mechanism 2, the output end of which is connected to a switching mechanism 3 to drive the switching mechanism 3 to move within the three-way valve section 11. In this embodiment, the drive mechanism 2 is a synchronous motor. Of course, in other embodiments, depending on the different designs of the switching mechanism 3, the drive mechanism 2 may also be a stepper motor or other drive devices.

[0060] It should be noted that by arranging the three-way valve section 11 in the front-back direction, the drive mechanism 2 can also be installed on the front side of the valve body 1 (in the prior art, the drive mechanism is usually installed between the valve body and the combustion chamber, that is, the drive mechanism is installed on the upper part of the valve body 1), so as to avoid the gap area between the valve body 1 and the combustion chamber 200, make full use of the space of the valve body 1 in the thickness direction, further shorten the distance between the valve body 1 and the combustion chamber 200, so as to reduce the height of the entire wall-hung boiler water circuit system.

[0061] Optionally, such as Figures 1-3 As shown, the hot water inlet 111 is positioned upwards, and the hot water inlet 111 and the hot water outlet 201 are directly connected via a connecting pipe 600. Compared to the prior art where the hot water inlet is located on the side of the valve body 1, the upward-facing arrangement of the hot water inlet 111 in this embodiment shortens the distance between the hot water inlet 111 and the hot water outlet 201, thereby reducing the length of the connecting pipe 600 and the materials used, and thus reducing material costs to a certain extent. In addition, the above arrangement also allows the connecting pipe 600 to be processed into a straight pipe structure, eliminating the need for excessive bends to connect the hot water inlet 111 and the hot water outlet 201, thereby avoiding the phenomenon of high water resistance caused by excessive bends in the connecting pipe 600.

[0062] The above embodiments merely illustrate the basic principles and characteristics of the present invention. The present invention is not limited to the above embodiments. Various changes and modifications can be made to the present invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water outlet valve, characterized in that, include: The valve body (1) includes a valve body (10) and a bypass valve section (15) connected to the valve body (10). The valve body (10) has a three-way valve chamber (110), a heating channel (121), and a first heat exchange inlet channel (131). The three-way valve chamber (110) can selectively connect to the heating channel (121) or the first heat exchange inlet channel (131). The first heat exchange inlet channel (131) is used to connect to the heat exchange structure (300). The bypass valve section (15) has a bypass channel (151) and a pressure relief channel (152). The pressure relief channel (152) is connected to the outside. A bypass valve core (4) and a pressure relief valve core (5) are spaced apart and movably disposed in the bypass channel (151). The space between the bypass valve core (4) and the pressure relief valve core (5) forms a pressure relief main chamber. The pressure relief main chamber is connected to the side of the three-way valve chamber (110) near the first heat exchange inlet channel (131). The bypass valve core (4) can selectively open the passage between the heating channel (121) and the pressure relief main chamber. The pressure relief valve core (5) can selectively open the passage between the pressure relief main chamber and the pressure relief channel (152).

2. The outlet valve according to claim 1, characterized in that, The spring preload of the pressure relief valve core (5) is greater than the spring preload of the bypass valve core (4).

3. The outlet valve according to claim 1, characterized in that, The bypass valve section (15) has an installation port at one end away from the valve body (10), and the pressure relief valve core (5) is sealed and installed at the installation port.

4. The outlet valve according to claim 1, characterized in that, The outlet of the pressure relief channel (152) is set downwards.

5. The outlet valve according to claim 1, characterized in that, The bypass valve section (15) is located on the front side of the valve body (10).

6. The outlet valve according to claim 5, characterized in that, The bypass valve section (15) extends along its axial direction in the front-to-back direction; or The bypass valve section (15) gradually tilts downward in a direction away from the valve body (10).

7. The outlet valve according to claim 1, characterized in that, The bypass valve core (4) is a one-way valve core structure.

8. The outlet valve according to claim 1, characterized in that, The valve body (10) also has a hot water inlet (111) that communicates with the three-way valve chamber (110). The hot water inlet (111) is used to connect to the combustion chamber (200), and the hot water inlet (111) is arranged facing upward.

9. The outlet valve according to any one of claims 1 to 8, characterized in that, The outlet valve also includes a switching mechanism (3), which is movably disposed in the three-way valve chamber (110) so that the three-way valve chamber (110) can selectively connect the heating channel (121) or the first heat exchange inlet channel (131).

10. The outlet valve according to claim 9, characterized in that, The outlet valve also includes a drive mechanism (2), the output end of which is connected to the switching mechanism (3) to drive the switching mechanism (3) to move in the three-way valve chamber (110), and the drive mechanism (2) is located on the front side of the valve body (1).

Images