Microbubble valve structure and heat pump device

Abstract

The application relates to the technical field of heat pumps. In particular, the application relates to a micro-bubble valve structure and a heat pump device. The micro-bubble valve structure comprises a valve body, a float plug, a separation grid, a convex column, an exhaust core and a connecting rod. The float plug and the inner wall of the valve cavity have an exhaust gap. The float plug can separate the valve cavity into a water passing space and a gas storage space. The water inlet and the water outlet are both communicated with the water passing space. The convex column is protruded on the outer surface of the top wall of the valve body. The exhaust passage is formed in the convex column and is communicated with the gas storage space. The exhaust groove is arranged on the side wall of the exhaust passage. One end of the connecting rod is connected with the float plug, and the other end of the connecting rod is connected with the exhaust core. When the gas pressure in the gas storage space reaches the preset pressure, the float plug can be driven to move, thereby driving the connecting rod to pull the exhaust core to move relative to the exhaust passage, so as to open the exhaust groove and make the gas in the gas storage space discharged to the outside of the valve body. The application can open the exhaust passage without operating the nut of the micro-bubble valve, thereby quickly discharging the refrigerant gas in the water pipe.

Description

Technical Field

[0001] This application relates to the field of heat pump technology, and in particular to a microbubble valve structure and a heat pump device. Background Technology

[0002] In heat pump systems, plate heat exchangers are the core component for heat exchange between the refrigerant circulation and the water system circulation. They primarily transfer heat from the refrigerant side to the water side (or vice versa) through the plate walls, ensuring complete isolation between the refrigerant and water to prevent refrigerant contamination of the water and to avoid affecting the heat exchanger's thermal efficiency. However, due to wear, aging seals, and installation inaccuracies during long-term operation, refrigerant gas on the refrigerant side can easily leak through the plate walls or sealing structures to the water side, causing refrigerant gas to enter the water pipes.

[0003] To expel refrigerant gas from the water pipes, related technologies propose installing microbubble valves on the water pipes connected to the water side of the plate heat exchanger. The microbubble valves are used to vent the refrigerant gas from the water pipes. However, the installation and venting operation of traditional microbubble valves rely on manual adjustment. After the microbubble valve is connected to the water pipe, the operator needs to manually loosen the nut on the microbubble valve to open the venting channel inside the valve. When the refrigerant gas in the water pipe enters the microbubble valve and accumulates until the gas pressure reaches a preset pressure threshold, the refrigerant gas can push the valve core assembly inside the microbubble valve to move, and then be discharged through the venting channel.

[0004] However, in actual application, operators may forget to loosen the nut, which will cause the venting function of the microbubble valve to fail completely. The refrigerant gas in the water pipe cannot be discharged, which will not only cause the aforementioned problems such as reduced heat exchange efficiency and water pipe corrosion, but may also cause abnormal pressure in the water pipe due to continuous gas accumulation, threatening the overall operational safety of the heat pump unit. Utility Model Content

[0005] This application discloses a microbubble valve structure and a heat pump device, which can open the exhaust channel without operating the nut of the microbubble valve, thereby enabling the refrigerant gas in the water pipe to be discharged quickly.

[0006] To achieve the above objectives, firstly, this application discloses a microbubble valve structure, comprising:

[0007] Valve body, wherein a valve cavity is formed inside the valve body, the valve body comprising:

[0008] The valve body sidewall has an inlet and an outlet formed thereon.

[0009] The valve body top wall is connected to the valve body side wall;

[0010] A float plug is disposed in the valve cavity and slides against the inner wall of the valve cavity. There is an exhaust gap between the float plug and the inner wall of the valve cavity. The float plug can divide the valve cavity into a water passage space and an air storage space. The water inlet and the water outlet are both connected to the water passage space.

[0011] A separation grid is provided in the water passage space to adsorb and separate gases in the water, so that the separated gases enter the gas storage space through the exhaust gap.

[0012] A protruding post is provided on the outer surface of the top wall of the valve body. An exhaust channel is formed inside the protruding post and is connected to the gas storage space. An exhaust groove is provided on the side wall of the exhaust channel.

[0013] An exhaust core, wherein the exhaust core slides within the inner wall of the exhaust channel and is in sealed contact with the inner wall of the exhaust channel;

[0014] A connecting rod is disposed within the gas storage space, one end of which is connected to the float plug, and the other end of which is connected to the exhaust core;

[0015] When the gas pressure in the gas storage space reaches the preset pressure, it can push the float to move, thereby driving the connecting rod to pull the exhaust core relative to the exhaust channel to open the exhaust groove and allow the gas in the gas storage space to be discharged to the valve body.

[0016] Because the float plug divides the valve cavity into a water passage space and an air storage space, and both the inlet and outlet are connected to the water passage space, a separation grid is installed in the water passage space. Therefore, the gas in the water entering the water passage space through the inlet can be separated by the separation grid. The water that has passed through the separation grid flows out through the outlet. Furthermore, because there is an exhaust gap between the float plug and the inner wall of the valve cavity, the gas separated by the separation grid can enter the air storage space through the exhaust gap.

[0017] Furthermore, since the exhaust core slides into the exhaust channel and is sealed to the inner wall of the exhaust channel, a connecting rod is provided between the exhaust core and the float, and an exhaust groove is provided on the side wall of the exhaust channel. Therefore, the exhaust core can seal the exhaust groove. However, when there is a lot of gas in the gas storage space, resulting in a large gas pressure in the gas storage space, the gas pressure in the gas storage space can push the float to move, thereby pulling the connecting rod. This causes the connecting rod to pull the exhaust core to move in the exhaust channel to open the exhaust groove. When the exhaust groove is opened, the gas in the gas storage space will be discharged from the valve body through the exhaust groove.

[0018] As can be seen, in this application, by opening an exhaust groove on the side wall of the exhaust channel, the exhaust function of the microbubble valve structure can be kept effective without operating the nut. That is, the exhaust groove is in a normally open state, which can quickly discharge the gas such as refrigerant gas in the water that has passed through the microbubble valve structure, thereby reducing the risk of water being contaminated by refrigerant gas.

[0019] In one possible implementation, the exhaust channels include at least two, which are distributed circumferentially at intervals along the protrusion.

[0020] Since at least two exhaust channels are distributed at circumferential intervals along the protrusion, the increased number of exhaust channels on the sidewalls of the exhaust passages allows the gas to be discharged more smoothly.

[0021] On the other hand, the circumferentially spaced exhaust grooves allow gas to be discharged evenly around the protrusions, avoiding excessively high or low local gas pressure that could affect the stability and reliability of the microbubble valve structure.

[0022] In one possible implementation, at least two of the exhaust channels are symmetrically arranged about the central axis of the protrusion.

[0023] Because at least two exhaust slots are symmetrically arranged about the central axis of the protrusion, the exhaust path is symmetrical. This allows gas to be discharged from both sides of the protrusion simultaneously, avoiding the gas pressure acting on the microbubble valve structure during exhaust due to the asymmetrical exhaust path, which would cause the microbubble valve structure to vibrate or shake. This further maintains the reliability and stability of the assembly of the microbubble valve structure.

[0024] In one possible implementation, the length of the exhaust groove along the circumference of the protrusion is d, where 4mm ≤ d ≤ 5mm.

[0025] If the length of the exhaust groove along the circumference of the protrusion is less than 4mm, it means that the length of the exhaust groove is too short, resulting in a small opening area of ​​the exhaust groove, which is not conducive to the exhaust of gas in the gas storage space. In addition, the exhaust groove is very easy to be blocked by dust, which will cause the exhaust function of the microbubble valve structure to fail.

[0026] If the length of the exhaust groove along the circumference of the protrusion is greater than 5mm, it indicates that the length of the exhaust groove is too long, which affects the strength of the protrusion and thus affects the service life of the microbubble valve structure.

[0027] Based on this, the length of the exhaust groove along the circumference of the protrusion is between 4mm and 5mm. This not only prevents the exhaust groove from being blocked by dust, thus ensuring the effectiveness of the exhaust function of the microbubble valve structure, but also ensures the structural strength of the protrusion, thus ensuring the service life of the microbubble valve.

[0028] In one possible implementation, the width of the exhaust groove along the axial direction of the protrusion is a, where 1mm ≤ a ≤ 3mm.

[0029] If the width of the exhaust groove along the axial direction of the protrusion is less than 1mm, it means that the exhaust groove is too narrow and is easily blocked by dust, which will cause the exhaust function of the microbubble valve structure to fail. If the width of the exhaust groove along the axial direction of the protrusion is greater than 3mm, it means that the exhaust groove is too wide and dust and other impurities can easily enter the valve cavity through the exhaust groove, which will affect the movement of the exhaust core and the float, or even block the exhaust gap, which can also cause the exhaust function of the microbubble valve structure to fail.

[0030] Based on this, through comprehensive consideration, the width of the exhaust groove along the axial direction of the protrusion is between 1mm and 3mm. This not only prevents dust from clogging the exhaust groove, but also prevents dust from entering the exhaust groove, thereby ensuring the effectiveness of the exhaust function of the microbubble valve structure.

[0031] In one possible implementation, the end of the protruding post is a closed structure; or,

[0032] The end of the protrusion is provided with an air outlet;

[0033] The valve body also includes a flat nut, which is screwed onto the protrusion to close the air outlet.

[0034] Since the end of the protrusion is a closed structure, there is no need to add a flat nut to seal the opening at the end of the protrusion, thus simplifying the structural design of the protrusion.

[0035] By opening an air vent at the end of the protruding post, it is easy to observe whether the exhaust core is assembled properly during assembly, which reduces the difficulty of assembling the exhaust core. Furthermore, the air vent can be sealed by using a flat nut to prevent rainwater, dust, and other external environmental elements from entering the valve chamber through the air vent.

[0036] In one possible implementation, the valve body includes:

[0037] The upper valve body has an internal thread on its inner wall, and the protrusion is disposed on the upper valve body;

[0038] The lower valve body has an external thread on its outer peripheral wall. The lower valve body and the upper valve body are assembled through the internal thread and the external thread, and the lower valve body and the upper valve body form the valve cavity.

[0039] Since the lower valve body and the upper valve body are assembled by internal and external threads to form the valve body, a structure in which the upper and lower valve bodies are detachably connected is formed. On the one hand, this facilitates the assembly of components such as the float, exhaust core, connecting rod, and separation grid. On the other hand, it facilitates the maintenance of the microbubble valve structure. For example, if any of the float, exhaust core, connecting rod, or separation grid malfunctions, it is not necessary to replace the entire microbubble valve structure; only the upper and lower valve bodies need to be disassembled to replace the corresponding new components.

[0040] Secondly, this application also provides a heat pump device, comprising:

[0041] chassis;

[0042] A refrigerant circulation assembly is disposed within the housing, and the refrigerant circulation assembly includes refrigerant pipes;

[0043] A water circulation assembly, the water circulation assembly including water pipes, at least a portion of the water pipes being disposed within the housing;

[0044] A plate heat exchanger is disposed within the casing, and the plate heat exchanger has the following features:

[0045] A refrigerant pipe, which is connected to the refrigerant tube;

[0046] A water circulation pipe is provided, which is independent of and adjacent to the refrigerant pipe. The water circulation pipe is connected to the first port of the water pipe. The plate heat exchanger is used to enable heat exchange between the refrigerant in the refrigerant pipe and the water in the water circulation pipe.

[0047] In any one of the microbubble valve structures described in the first aspect, the second port of the water pipe is connected to the water inlet, and the third port of the water pipe is connected to the water outlet.

[0048] Because the heat pump device uses the microbubble valve structure described in the first aspect, it can ensure the continuous effectiveness of refrigerant gas discharge in the water pipes of the heat pump device, thus avoiding contamination of the water terminal by the refrigerant gas.

[0049] In one possible implementation, the valve body is positioned at the highest point of the water pipe in its direction of gravity.

[0050] By positioning the valve body at the highest point of the water pipe in the direction of gravity, the microbubble valve structure can separate and discharge air bubbles in the water in real time, ensuring full-pipe flow of the water circulation components and maintaining stable heat exchange efficiency. It can be seen that the microbubble valve structure can discharge both refrigerant gas in the water and air bubbles in the water pipe. Compared with related technologies that use separate microbubble valves and vent valves to discharge air bubbles and refrigerant gas from the water pipe, this simplifies the structural design of the heat pump device.

[0051] In one possible implementation, the valve body is disposed within the housing.

[0052] By placing the valve body inside the housing, the operation difficulty of the microbubble valve structure is reduced because there is no need to loosen the nut. On the other hand, the structural compactness of the heat pump device can be improved.

[0053] Compared with the prior art, the beneficial effects of this application are as follows:

[0054] Because the float plug divides the valve cavity into a water passage space and an air storage space, and both the inlet and outlet are connected to the water passage space, a separation grid is installed in the water passage space. Therefore, the gas in the water entering the water passage space through the inlet can be separated by the separation grid. The water that has passed through the separation grid flows out through the outlet. Furthermore, because there is an exhaust gap between the float plug and the inner wall of the valve cavity, the gas separated by the separation grid can enter the air storage space through the exhaust gap.

[0055] Furthermore, since the exhaust core slides into the exhaust channel and is sealed to the inner wall of the exhaust channel, a connecting rod is provided between the exhaust core and the float, and an exhaust groove is provided on the side wall of the exhaust channel. Therefore, the exhaust core can seal the exhaust groove. However, when there is a lot of gas in the gas storage space, resulting in a large gas pressure in the gas storage space, the gas pressure in the gas storage space can push the float to move, thereby pulling the connecting rod. This causes the connecting rod to pull the exhaust core to move in the exhaust channel to open the exhaust groove. When the exhaust groove is opened, the gas in the gas storage space will be discharged from the valve body through the exhaust groove.

[0056] As can be seen, in this application, by opening an exhaust groove on the side wall of the exhaust channel, the exhaust function of the microbubble valve structure can be kept effective without operating the nut. That is, the exhaust groove is in a normally open state, which can quickly discharge the gas such as refrigerant gas in the water that has passed through the microbubble valve structure, thereby reducing the risk of water being contaminated by refrigerant gas. Attached Figure Description

[0057] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0058] Figure 1 This is a side view of the microbubble valve structure provided in the embodiments of this application;

[0059] Figure 2 This is a front view of the microbubble valve structure provided in the embodiments of this application;

[0060] Figure 3 yes Figure 2 Cross-sectional view at point AA;

[0061] Figure 4 This is a partial cross-sectional view of the valve body provided in the embodiment of this application;

[0062] Figure 5 This is a schematic diagram of the exhaust channel arrangement provided in an embodiment of this application;

[0063] Figure 6 This is a schematic diagram of a structure provided in an embodiment of this application, which has at least two exhaust channels.

[0064] Figure 7 This is a schematic diagram of the structure of the exhaust channel provided in the embodiment of this application;

[0065] Figure 8 This is a schematic diagram of the structure of the convex post with a flat nut provided in the embodiment of this application;

[0066] Figure 9 This is a schematic diagram of the structure of the heat pump device provided in the embodiments of this application;

[0067] Figure 10 This is a cross-sectional view of the plate heat exchanger provided in the embodiments of this application;

[0068] Figure 11 This is an exploded view of the microbubble valve structure and its connection to a water pipe provided in the embodiments of this application.

[0069] Explanation of reference numerals in the attached figures:

[0070] 100-Microbubble valve structure;

[0071] 110-Valve body; 111-Valve body side wall; 1111-Inlet; 1112-Outlet; 112-Valve body top wall; 11a-Valve cavity; 110a-Upper valve body; 110b-Lower valve body; 11a1-Water passage; 11a2-Air storage space; 120-Float plug; 130-Separation grid; 140-Protruding post; 141-Exhaust channel; 142-Exhaust groove; 143-Air outlet; 145-Flat nut; 150-Exhaust core; 160-Connecting rod;

[0072] 1A - Exhaust clearance;

[0073] 200-Heat pump unit; 210-Casing; 220-Refrigerant circulation assembly; 221-Refrigerant pipe; 230-Water circulation assembly; 231-Water pipe; 2311-First port; 2312-Second port; 2313-Third port; 240-Plate heat exchanger; 241-Refrigerant pipe; 242-Water circulation pipe. Detailed Implementation

[0074] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0075] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0076] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0077] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; 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, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0078] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0079] As described in the background section, related technologies propose installing a microbubble valve on the water pipe connected to the water side of a plate heat exchanger. The microbubble valve's venting function is used to discharge refrigerant gas from the water pipe. However, the installation and venting operation of traditional microbubble valves rely on manual adjustment. That is, after the microbubble valve is connected to the water pipe, the operator needs to manually loosen the nut on the microbubble valve to put the venting channel inside the microbubble valve in a ready-to-open state. When the refrigerant gas in the water pipe enters the microbubble valve and accumulates until the gas pressure reaches a preset pressure threshold, the refrigerant gas can push the valve core assembly inside the microbubble valve to move, and then be discharged through the venting channel.

[0080] However, in actual application, operators may forget to loosen the nut, which will cause the venting function of the microbubble valve to fail completely. The refrigerant gas in the water pipe cannot be discharged, which will not only cause the aforementioned problems such as reduced heat exchange efficiency and water pipe corrosion, but may also cause abnormal pressure in the water pipe due to continuous gas accumulation, threatening the overall operational safety of the heat pump unit.

[0081] If the refrigerant gas in the water pipes is not discharged in time, it will cause multiple problems: On the one hand, the gas forms a gas barrier in the water pipes, hindering the normal circulation of the water system, reducing the water flow, and thus causing a significant decrease in the heat exchange efficiency of the heat pump device. For example, in heating scenarios, it will cause insufficient heat dissipation of indoor terminal equipment (underfloor heating, radiators), and in domestic hot water scenarios, it will prolong the hot water preparation time. On the other hand, the long-term accumulation of refrigerant gas in the water pipes may cause a chemical reaction with the inner wall of the water pipes, accelerating the corrosion of the water pipes and shortening their service life. At the same time, if some refrigerant gas enters the terminal water-using equipment (such as faucets and shower heads) with the water flow, it may also pose a potential risk to the user's safety.

[0082] Based on this, this application discloses a microbubble valve structure that can keep the exhaust channel of the microbubble valve open without operating the nut of the microbubble valve, thereby enabling the rapid discharge of refrigerant gas in the water pipe.

[0083] The technical solution of this application will be further described below with reference to specific embodiments and accompanying drawings.

[0084] See Figures 1 to 5This application provides a microbubble valve structure 100, which includes a valve body 110, a float 120, a separation grid 130, a protrusion 140, an exhaust core 150, and a connecting rod 160. A valve cavity 11a is formed inside the valve body 110. The valve body 110 includes a valve body side wall 111 and a valve body top wall 112. An inlet 1111 and an outlet 1112 are formed on the valve body side wall 111. The valve body top wall 112 and the valve body side wall 111... 11. Connection; Float 120 is disposed within valve cavity 11a and slides against the inner wall of valve cavity 11a. A venting gap 1A exists between float 120 and the inner wall of valve cavity 11a. Float 120 divides valve cavity 11a into a water passage space 11a1 and an air storage space 11a2. Inlet 1111 and outlet 1112 are both connected to the water passage space 11a1. Separation grid 130 is disposed within the water passage space 11a1 and is used to adsorb and separate gases from the water. The gas is separated and enters the gas storage space 11a2 through the exhaust gap 1A; the protruding post 140 protrudes from the outer surface of the valve body top wall 112, and an exhaust channel 141 is formed inside the protruding post 140. The exhaust channel 141 communicates with the gas storage space 11a2, and an exhaust groove 142 is provided on the side wall of the exhaust channel 141; the exhaust core 150 slides and is in sealing contact with the inner wall of the exhaust channel 141; the connecting rod 160 is disposed in the gas storage space 11a2, one end of the connecting rod 160 is connected to the float 120, and the other end of the connecting rod 160 is connected to the exhaust core 150; when the gas pressure in the gas storage space 11a2 reaches the preset pressure, it can push the float 120 to move, thereby driving the connecting rod 160 to pull the exhaust core 150 relative to the exhaust channel 141 to open the exhaust groove 142, so that the gas in the gas storage space 11a2 can be discharged to the outside of the valve body 110.

[0085] Since the float plug 120 divides the valve chamber 11a into a water passage space 11a1 and a gas storage space 11a2, and both the inlet 1111 and the outlet 1112 are connected to the water passage space 11a1, a separation grid 130130 is provided in the water passage space 11a1. Therefore, the gas in the water entering the water passage space 11a1 through the inlet 1111 can be separated by the separation grid 130130. The water that has passed through the separation grid 130130 flows out through the outlet 1112. Since there is an exhaust gap 1A between the float plug 120 and the inner wall of the valve chamber 11a, the gas separated by the separation grid 130130 can enter the gas storage space 11a2 through the exhaust gap 1A.

[0086] Furthermore, since the exhaust core 150 slides and is sealed to the inner wall of the exhaust channel 141, a connecting rod 160 is provided between the exhaust core 150 and the float 120, and an exhaust groove 142 is provided on the side wall of the exhaust channel 141, the exhaust core 150 can seal the exhaust groove 142. However, when there is a lot of gas in the gas storage space 11a2, resulting in a large gas pressure in the gas storage space 11a2, the gas pressure in the gas storage space 11a2 can push the float 120 to move, thereby pulling the connecting rod 160. This causes the connecting rod 160 to pull the exhaust core 150 to move in the exhaust channel 141 to open the exhaust groove 142. When the exhaust groove 142 is opened, the gas in the gas storage space 11a2 will be discharged out of the valve body 110 through the exhaust groove 142.

[0087] As can be seen, in this embodiment of the application, by opening an exhaust groove 142 on the side wall of the exhaust channel 141, the exhaust function of the microbubble valve structure 100 can be kept effective without operating the nut. That is, the exhaust groove 142 is in a normally open state, which can quickly discharge the gas such as refrigerant gas in the water that has passed through the microbubble valve structure 100, thereby reducing the risk of water being contaminated by refrigerant gas.

[0088] In addition, since the protrusion 140 protrudes from the outer surface of the valve body top wall 112 and the exhaust groove 142 is disposed on the side wall of the exhaust channel 141, compared with the solution of disposing of the exhaust groove 142 on the top wall of the protrusion 140, it can avoid dust and other objects from clogging the exhaust groove 142 and ensure that the exhaust groove 142 is in a normally open state.

[0089] It should be noted that the aforementioned float 120, separation grid 130, exhaust core 150, etc., are all existing technologies that constitute the microbubble valve structure 100, and will not be described in detail here.

[0090] The structure of the exhaust groove 142 is not specifically limited. For example, the exhaust groove 142 can be a rectangular groove, an elliptical groove, etc.

[0091] Furthermore, the width of the aforementioned exhaust gap 1A is relatively small, allowing only gas to pass through, but preventing water from passing through. Optionally, a groove is formed on the inner wall of the valve cavity 11a, or a groove is provided on the peripheral wall of the float 120, to form the exhaust gap 1A when the float 120 mates with the inner wall of the valve cavity 11a.

[0092] Optionally, the inlet 1111 and the outlet 1112 are arranged opposite to each other, and the heights of the inlet 1111 and the outlet 1112 are consistent, so as to facilitate the smooth passage of water through the microbubble valve structure 100.

[0093] In some possible embodiments, see Figure 6The exhaust groove 142 includes at least two, and the at least two exhaust grooves 142 are distributed at circumferential intervals along the protrusion 140.

[0094] Among them, the circumferential direction of the protruding post 140 refers to Figure 5 The direction indicated by the X arrow.

[0095] Since at least two exhaust slots 142 are distributed circumferentially along the protrusion 140, the number of exhaust channels on the sidewall of the exhaust channel 141 is increased, which allows the gas to be discharged more smoothly.

[0096] On the other hand, the circumferentially spaced exhaust grooves 142 can evenly discharge gas around the protrusions 140, avoiding excessively high or low local gas pressure that could affect the stability and reliability of the microbubble valve structure 100.

[0097] On the one hand, if any one of the exhaust channels 142 is blocked by dust or rainwater, the other exhaust channels 142 can still exhaust normally, thus ensuring the effectiveness of the exhaust of the microbubble valve structure 100.

[0098] In some possible embodiments, at least two exhaust slots 142 are about the central axis of the protrusion 140. Figure 5 The position indicated by the dashed line x1 is symmetrically set.

[0099] Since at least two exhaust slots 142 are symmetrically arranged about the central axis of the protrusion 140, the exhaust path is symmetrical. This allows gas to be discharged from both sides of the protrusion 140 simultaneously, avoiding the gas pressure acting on the microbubble valve structure 100 during exhaust due to the asymmetrical exhaust path, which would cause the microbubble valve structure 100 to vibrate or shake. This further maintains the reliability and stability of the assembly of the microbubble valve structure 100.

[0100] For example, there are two exhaust slots 142, which are symmetrically arranged on opposite sides of the protrusion 140.

[0101] In some possible embodiments, see Figure 7 The length of the exhaust groove 142 along the circumference of the protrusion 140 is d, 4mm≤d≤5mm.

[0102] If the length of the exhaust groove 142 along the circumferential direction of the protrusion 140 is less than 4mm, it means that the length of the exhaust groove 142 is too short, resulting in a small opening area of ​​the exhaust groove 142, which is not conducive to the discharge of gas in the gas storage space 11a2. Furthermore, the exhaust groove 142 is very easy to be blocked by dust, etc., which will cause the exhaust function of the microbubble valve structure 100 to fail.

[0103] If the length of the exhaust groove 142 along the circumferential direction of the protrusion 140 is greater than 5mm, it indicates that the length of the exhaust groove 142 is too long, which affects the strength of the protrusion 140 and thus affects the service life of the microbubble valve structure 100.

[0104] Based on this, the length of the exhaust groove 142 along the circumferential direction of the protrusion 140 is between 4mm and 5mm. This can prevent the exhaust groove 142 from being blocked by dust, thus ensuring the effectiveness of the exhaust function of the microbubble valve structure 100, and also ensure the structural strength of the protrusion 140, thus ensuring the service life of the microbubble valve structure 100.

[0105] For example, the length of the exhaust groove 142 can be 4mm, 4.1mm, 4.2mm, 4.3mm, 4.4mm, 4.5mm, 4.6mm, 4.7mm, 4.8mm, 4.9mm, 5mm, etc.

[0106] In some possible embodiments, see Figure 7 The width of the exhaust groove 142 along the axial direction of the protrusion 140 is a, where 1mm ≤ a ≤ 3mm.

[0107] If the width of the exhaust groove 142 along the axial direction of the protrusion 140 is less than 1mm, it means that the exhaust groove 142 is too narrow and is easily blocked by dust, thus causing the exhaust function of the microbubble valve structure 100 to fail. If the width of the exhaust groove 142 along the axial direction of the protrusion 140 is greater than 3mm, it means that the exhaust groove 142 is too wide and dust and other impurities can easily enter the valve cavity 11a through the exhaust groove 142, thereby affecting the movement of the exhaust core 150 and the float 120, or even blocking the exhaust gap 1A, which can also cause the exhaust function of the microbubble valve structure 100 to fail.

[0108] Based on this, through comprehensive consideration, the width of the exhaust groove 142 along the axial direction of the protrusion 140 is between 1mm and 3mm, which can both prevent dust from clogging the exhaust groove 142 and prevent dust from entering the exhaust groove 142, thereby ensuring the effectiveness of the exhaust function of the microbubble valve structure 100.

[0109] For example, the width of the exhaust groove 142 along the axial direction of the protrusion 140 can be 1mm, 1.2mm, 1.5mm, 1.7mm, 2mm, 2.2mm, 2.5mm, 2.7mm, 3mm, etc.

[0110] In some possible embodiments, see Figure 6 The end of the protruding post 140 is a closed structure.

[0111] The closed structure at the end of the protruding post 140 means that the end of the protruding post 140 does not have an opening, and the opening is sealed by the flat nut 145.

[0112] Since the end of the protrusion 140 is a closed structure, there is no need to add a flat nut 145 to seal the opening at the end of the protrusion 140, thus simplifying the structural design of the protrusion 140.

[0113] In some possible embodiments, see Figure 8 The end of the protrusion 140 is provided with an air outlet 143; the valve body 110 also includes a flat nut 145, which is tightened onto the protrusion 140 to close the air outlet 143.

[0114] By opening an air vent 143 at the end of the protrusion 140, it is easy to observe whether the exhaust core 150 is assembled properly when assembling the exhaust core 150, which reduces the difficulty of assembling the exhaust core 150. Furthermore, by sealing the air vent 143 with the flat nut 145, the air vent 143 can be sealed to prevent rainwater, dust, and other external environmental elements from entering the valve chamber 11a through the air vent 143.

[0115] It should be noted that the end of the aforementioned protrusion 140 refers to the end face of the protrusion 140 away from the top wall 112 of the valve body.

[0116] In some possible embodiments, see Figure 3 The valve body 110 includes an upper valve body 110a and a lower valve body 110b. The inner wall of the upper valve body 110a is provided with an internal thread, and a protrusion 140 is provided on the upper valve body 110a. The outer peripheral wall of the lower valve body 110b is provided with an external thread. The lower valve body 110b and the upper valve body 110a are assembled by the internal thread and the external thread, and the lower valve body 110b and the upper valve body 110a form a valve cavity 11a.

[0117] Since the lower valve body 110b and the upper valve body 110a are assembled by internal and external threads to form the valve body 110, a structure in which the upper valve body 110a and the lower valve body 110b are detachably connected is formed. On the one hand, this facilitates the assembly of the float plug 120, the exhaust core 150, the connecting rod 160, and the separation grid 130130, etc. On the other hand, it facilitates the maintenance of the microbubble valve structure 100. For example, if any of the float plug 120, the exhaust core 150, the connecting rod 160, and the separation grid 130130 malfunctions, it is not necessary to replace the entire microbubble valve structure 100. Only the upper valve body 110a and the lower valve body 110b need to be disassembled to replace the corresponding new parts.

[0118] See Figure 9 and Figure 10This application also provides a heat pump device 200, which includes a housing 210, a refrigerant circulation assembly 220, a water circulation assembly 230, a plate heat exchanger 240, and the microbubble valve structure 100 described in the above embodiments. The refrigerant circulation assembly 220 is disposed within the housing 210 and includes a refrigerant pipe 221; the water circulation assembly 230 includes a water pipe 231, at least a portion of which is disposed within the housing 210; the plate heat exchanger 240 is disposed within the housing 210 and has... The refrigerant pipe 241 and the water circulation pipe 242 are connected. The refrigerant pipe 241 is connected to the refrigerant pipe 221. The water circulation pipe 242 is independent of the refrigerant pipe 241 but is adjacent to it. The water circulation pipe 242 is connected to the first port 2311 of the water pipe 231. The plate heat exchanger 240 is used to exchange heat between the refrigerant in the refrigerant pipe 241 and the water in the water circulation pipe 242. The second port 2312 of the water pipe 231 is connected to the inlet 1111, and the third port 2313 of the water pipe 231 is connected to the outlet 1112.

[0119] The refrigerant circulation assembly 220 also includes a compressor, an expansion valve, and a heat exchanger. The compressor is used to compress the refrigerant into a high-temperature and high-pressure gas. The expansion valve is connected to the refrigerant passage through the refrigerant pipe 221 and is used to throttle and reduce the pressure of the refrigerant. The heat exchanger is connected to the compressor through the refrigerant pipe 221 and is able to absorb heat from the outdoor air.

[0120] The water circulation assembly 230 also includes a water pump, an external water supply system such as tap water, and water terminals such as water heaters, underfloor heating, and air conditioning terminals. The circulation pump is connected to the external water supply system and the water terminals respectively through water pipes 231. The circulation pump can transport water from the external water supply system to the plate heat exchanger 240 and allow the water in the plate heat exchanger 240 to enter the water terminals.

[0121] In addition, the microbubble valve structure 100 mentioned above is any one of the microbubble valve structures 100 in the above embodiments, and its structure and function are the same as those in the above embodiments. Please refer to the foregoing description, and it will not be repeated here.

[0122] In this embodiment, the refrigerant circulation component 220, water circulation component 230, plate heat exchanger 240, etc. are all integrated in the casing 210. They are connected to the external water circuit only through the second port 2312 of the water pipe 231 to the inlet 1111 and the third port 2313 to the outlet 1112, thus avoiding the space waste caused by the dispersed arrangement of components.

[0123] Furthermore, the water pipe 231, through its dual-interface design of the second port 2312 and the third port 2313, can achieve flexible water interface and meet diverse water use scenarios.

[0124] In addition, since the heat pump device 200 uses the microbubble valve structure 100 in the above embodiment, the continuous effectiveness of the discharge of refrigerant gas in the water pipe 231 of the heat pump device 200 can be guaranteed, and the refrigerant gas can be avoided from contaminating the water terminal.

[0125] In some possible embodiments, the valve body 110 is positioned at the highest point of the water pipe 231 in the direction of gravity.

[0126] The direction of gravity is also the height direction of the heat pump device 200, which is... Figure 9 The direction indicated by the Z-arrow.

[0127] Because air bubbles are easily generated during water circulation, if these bubbles remain in the water pipe 231 or the water circulation pipe 242 of the plate heat exchanger 240, they will occupy the heat exchange space and reduce the effective contact area between the water and the water circulation pipe 242, resulting in a decrease in the heat exchange efficiency of the plate heat exchanger 240. At the same time, the accumulation of bubbles may cause "air blockage," resulting in poor water circulation and even causing the circulation pump to run dry and be damaged. Based on this, the valve body 110 is positioned at the highest point of the water pipe 231 in the direction of gravity. In this way, the microbubble valve structure 100 can separate and discharge the air bubbles in the water in real time, ensuring full-pipe flow of the water circulation component 230 and maintaining stable heat exchange efficiency. It can be seen that the microbubble valve structure 100 can discharge both the refrigerant gas in the water and the air bubbles in the water pipe 231. Compared with the related technologies that use separate microbubble valves and vent valves to discharge the air bubbles and refrigerant gas in the water pipe 231, this simplifies the structural design of the heat pump device 200.

[0128] In some possible embodiments, the valve body 110 is disposed within the housing 210.

[0129] By placing the valve body 110 inside the housing 210, the operation difficulty of the microbubble valve structure 100 is reduced because there is no need to loosen the nut. On the other hand, the structural compactness of the heat pump device 200 can be improved.

[0130] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A microbubble valve structure (100), characterized in that, include: A valve body (110) having a valve cavity (11a) formed inside, the valve body (110) comprising: A valve body sidewall (111) has an inlet (1111) and an outlet (1112) formed thereon; The valve body top wall (112) is connected to the valve body side wall (111); A float plug (120) is disposed in the valve cavity (11a) and slides against the inner wall of the valve cavity (11a). There is an exhaust gap (1A) between the float plug (120) and the inner wall of the valve cavity (11a). The float plug (120) can divide the valve cavity (11a) into a water passage space (11a1) and an air storage space (11a2). The water inlet (1111) and the water outlet (1112) are both connected to the water passage space (11a1). A separation grid (130) is provided in the water passage space (11a1) to adsorb and separate gas in the water so that the separated gas enters the gas storage space (11a2) through the exhaust gap (1A); A protruding post (140) is provided on the outer surface of the top wall (112) of the valve body. An exhaust channel (141) is formed inside the protruding post (140). The exhaust channel (141) is connected to the gas storage space (11a2). An exhaust groove (142) is provided on the side wall of the exhaust channel (141). An exhaust core (150) is slidably fitted with the inner wall of the exhaust channel (141) and is in sealed contact with the inner wall of the exhaust channel (141). A connecting rod (160) is disposed in the gas storage space (11a2), one end of the connecting rod (160) is connected to the float (120), and the other end of the connecting rod (160) is connected to the exhaust core (150); When the air pressure in the gas storage space (11a2) reaches the preset pressure, it can push the float (120) to move, thereby driving the connecting rod (160) to pull the exhaust core (150) relative to the exhaust channel (141) to open the exhaust groove (142) and allow the gas in the gas storage space (11a2) to be discharged to the outside of the valve body (110).

2. The microbubble valve structure (100) according to claim 1, characterized in that, The exhaust grooves (142) include at least two, and the at least two exhaust grooves (142) are distributed at circumferential intervals along the protrusion (140).

3. The microbubble valve structure (100) according to claim 2, characterized in that, At least two of the exhaust channels (142) are symmetrically arranged about the central axis of the protrusion (140).

4. The microbubble valve structure (100) according to claim 1, characterized in that, The length of the exhaust groove (142) along the circumference of the protrusion (140) is d, 4mm≤d≤5mm.

5. The microbubble valve structure (100) according to claim 1, characterized in that, The width of the exhaust groove (142) along the axial direction of the protrusion (140) is a, where 1mm ≤ a ≤ 3mm.

6. The microbubble valve structure (100) according to claim 1, characterized in that, The end of the protruding post (140) is a closed structure; or, The end of the protrusion (140) is provided with an air outlet (143); The valve body (110) also includes a flat nut (145), which is screwed onto the protrusion (140) to close the vent (143).

7. The microbubble valve structure (100) according to claim 1, characterized in that, The valve body (110) includes: The upper valve body (110a) has an internal thread on its inner wall, and the protrusion (140) is disposed on the upper valve body (110a). The lower valve body (110b) has an external thread on its outer peripheral wall. The lower valve body (110b) and the upper valve body (110a) are assembled by the internal thread and the external thread, and the lower valve body (110b) and the upper valve body (110a) form the valve cavity (11a).

8. A heat pump device (200), characterized in that, include: Casing (210); A refrigerant circulation assembly (220) is disposed within the housing (210), and the refrigerant circulation assembly (220) includes a refrigerant pipe (221); A water circulation assembly (230) includes a water pipe (231), at least a portion of which is disposed within the housing (210); A plate heat exchanger (240) is disposed within the casing (210), and the plate heat exchanger (240) has: A refrigerant pipe (241) is connected to the refrigerant pipe (221); A water circulation pipe (242) is provided, which is independent of and adjacent to the refrigerant pipe (241). The water circulation pipe (242) is connected to the first port (2311) of the water pipe (231). The plate heat exchanger (240) is used to enable the refrigerant in the refrigerant pipe (241) to exchange heat with the water in the water circulation pipe (242). The microbubble valve structure (100) according to any one of claims 1-7, wherein the second port (2312) of the water pipe (231) is connected to the inlet (1111), and the third port (2313) of the water pipe (231) is connected to the outlet (1112).

9. The heat pump device (200) according to claim 8, characterized in that, The valve body (110) is positioned at the highest point of the water pipe (231) in the direction of gravity.

10. The heat pump device (200) according to claim 8, characterized in that, The valve body (110) is disposed inside the housing (210).

Images