Constant pressure regulating device for heat pump air conditioner

Abstract

The utility model relates to heat pump air conditioning technical field discloses a constant pressure regulating device for heat pump air conditioner, including valve body, the both ends of valve body are water inlet and water outlet, and it is the communicating port between water inlet and water outlet, be provided with switch cavity on the valve body, switch cavity sets up on the communicating port, the valve core is sealed and slidably connected in switch cavity, the valve core can with the communicating port is sealed, be provided with pressure regulating part in switch cavity, form pressure change chamber between pressure regulating part and valve core, switch cavity is connected with the pressure pipe and pressure relief pipe, the other end of pressure pipe is linked together with pressure change chamber, the valve core is blocked in pressure pipe and pressure relief pipe opening when normal operation, this device solved the problem that the water pressure is not stable that pressure regulating part is easy to age, and the pressure pipe that set up with valve core opening degree control intercommunication, the pressure pipe is connected time and replenished the elastic force of pressure regulating part loss, maintained the stability of output water pressure.

Description

Technical Field

[0001] This utility model relates to the field of heat pump air conditioning technology, and more specifically, it relates to a constant pressure regulating device for heat pump air conditioning. Background Technology

[0002] Heat pump air conditioners utilize the solar energy stored in the soil, air, and water as heat sources, transferring temperature to stored water. The stored water is then pumped into the circulation system via a hydraulic module to regulate the indoor temperature. To ensure uniform heat exchange, a constant pressure regulating device is installed in the hydraulic module.

[0003] Currently, the constant pressure regulating devices on the market usually use constant pressure valves to regulate water pressure. The constant pressure valve uses a preset spring to press the valve core onto the connection port, and presets the water pressure that can push the valve core open, thereby ensuring the stability of water pressure in the circulation system. However, with long-term use, the elastic coefficient of the spring will change, and the elastic coefficient of the spring is greatly affected by temperature changes. When the spring force decreases, the output water pressure decreases. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a constant pressure regulating device for heat pump air conditioners with more stable water pressure.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A constant pressure regulating device for heat pump air conditioners includes a valve body with an inlet and an outlet at its two ends, connected to a communication port. A switching chamber is provided on the valve body and positioned on the communication port. A valve core is slidably and sealed within the switching chamber, and the valve core can seal the communication port. A pressure regulating component is provided within the switching chamber, forming a pressure-reducing chamber between the pressure regulating component and the valve core. A pressure-boosting pipe and a pressure-reducing pipe are connected to the switching chamber, with the other end of the pressure-boosting pipe connected to the pressure-reducing chamber. During normal operation, the valve core blocks the openings of the pressure-boosting pipe and the pressure-reducing pipe.

[0007] The present invention is further configured such that: the booster pipe is located on the side near the connection port, and when the valve core opening is too large, the booster pipe is connected to the water inlet.

[0008] The present invention is further configured such that: the pressure relief pipe is located on the side away from the connection port, and the other end of the pressure relief pipe is connected to the water outlet; when the valve core opening is too small, the pressure relief pipe connects the pressure transformer chamber and the water outlet.

[0009] The present invention is further configured such that: the pressure regulating component includes a pressure plate, a diaphragm is provided on the pressure plate, the diaphragm covers the opening of the switching cavity, a cover is installed on the opening of the switching cavity, a spring is provided on the pressure plate, and the other end of the spring is connected to the valve core.

[0010] The present invention is further configured such that the diaphragm is a rubber membrane.

[0011] The present invention is further configured such that: a limiting post is provided on the pressure plate, and a limiting cylinder is provided on the valve core; both the limiting post and the limiting cylinder extend along the axial direction of the switching cavity; the limiting post is inserted into the inside of the spring, and the limiting cylinder surrounds the outside of the spring.

[0012] The advantages of this utility model are:

[0013] A sealed pressure-transforming chamber is set between the pressure regulating component and the valve core. The pressure-transforming chamber can be connected to the water inlet through a booster pipe and to the water outlet through a pressure relief pipe. When the elasticity of the pressure regulating component decreases, the opening of the valve core increases during normal operation. The movement of the valve core exposes the opening of the booster pipe, and the high-pressure water in the water inlet enters the pressure-transforming chamber through the booster pipe. The pressure in the pressure-transforming chamber increases, thereby promoting the valve core to close, making up for the elasticity lost by the spring, and maintaining stable water pressure. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of one embodiment of the present invention;

[0015] Figure 2 For along Figure 1 The cross-sectional view along line AA is shown below;

[0016] Figure 3 for Figure 2 The enlarged view of part B shown;

[0017] In the diagram: 1. Valve body; 11. Inlet; 12. Outlet; 13. Switch chamber; 131. Variable pressure chamber; 14. Connecting port; 2. Cover; 3. Valve core; 31. Limiting cylinder; 4. Pressure regulating component; 41. Pressure plate; 411. Limiting post; 42. Diaphragm; 43. Spring; 5. Pressure boosting pipe; 6. Pressure relief pipe. Detailed Implementation

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0020] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0021] Please see Figure 1-3 The present invention provides the following technical solution:

[0022] The constant pressure regulating device for heat pump air conditioners includes a valve body 1. The two ends of the valve body 1 are an inlet 11 and an outlet 12, respectively. A connecting port 14 is formed between the inlet 11 and the outlet 12. A switching chamber 13 is provided on the valve body 1. The switching chamber 13 is located on the connecting port 14. A valve core 3 is slidably connected inside the switching chamber 13. The valve core 3 can be sealed with the connecting port 14. A pressure regulating component 4 is provided inside the switching chamber 13. A pressure regulating component 4 and the valve core 3 form a pressure transforming chamber 131. A pressure boosting pipe 5 and a pressure relief pipe 6 are connected to the switching chamber 13. The other end of the pressure boosting pipe 5 is connected to the pressure transforming chamber 131. During normal operation, the valve core 3 is blocked in the openings of the pressure boosting pipe 5 and the pressure relief pipe 6.

[0023] The booster pipe 5 is located on the side near the connection port 14. When the valve core 3 is opened too large, the booster pipe 5 is connected to the water inlet 11.

[0024] The pressure relief pipe 6 is located on the side away from the connecting port 14. The other end of the pressure relief pipe 6 is connected to the outlet 12. When the valve core 3 is opened too low, the pressure relief pipe 6 connects the transformer chamber 131 and the outlet 12.

[0025] The water pressure in the inlet 11 is too high, which causes the pressure in the transformer chamber 131 to increase rapidly. When the valve core 3 is too small, the opening of the pressure relief pipe 6 is exposed. The fluid in the transformer chamber 131 enters the outlet 12 through the pressure relief pipe 6, which reduces the water pressure in the transformer chamber 131 and thus maintains the output pressure.

[0026] The pressure regulating component 4 includes a pressure plate 41, a diaphragm 42 covering the pressure plate 41, the diaphragm 42 sealing the opening of the switch cavity 13, a cover 2 installed on the opening of the switch cavity 13, a spring 43 on the pressure plate 41, the other end of the spring 43 being connected to the valve core 3, a limit post 411 on the pressure plate 41, and a limit cylinder 31 on the valve core 3. Both the limit post 411 and the limit cylinder 31 extend along the axial direction of the switch cavity 13. The limit post 411 is inserted into the inside of the spring 43, and the limit cylinder 31 surrounds the outside of the spring 43.

[0027] The diaphragm 42 is a rubber membrane that can deform to a certain extent with changes in pressure. When the valve core 3 moves under pressure, the liquid between the valve core 3 and the pressure plate 41 is compressed. The deformation margin of the diaphragm 42 reduces the resistance to the movement of the valve core 3, which facilitates the connection of the valve body 1.

[0028] Specifically, a sealed pressure regulating component 4 and valve core 3 are configured to form a pressure regulating chamber 131. The pressure regulating chamber 131 can be connected to the inlet 11 through the pressure boosting pipe 5, and the pressure regulating chamber 131 can be connected to the outlet 12 through the pressure relief pipe 6. When the elastic force of the pressure regulating component 4 decreases, the opening of the normally operating valve core 3 increases. The movement of the valve core 3 exposes the opening of the pressure boosting pipe 5, and the high-pressure water in the inlet 11 enters the pressure regulating chamber 131 through the pressure boosting pipe 5. The pressure in the pressure regulating chamber 131 increases, thereby promoting the closure of the valve core 3, making up for the lost elastic force of the spring 43, and maintaining stable water pressure.

[0029] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0030] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0031] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar counterparts and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0032] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A constant pressure regulating device for heat pump air conditioners, comprising a valve body (1), characterized in that: The valve body (1) has an inlet (11) and an outlet (12) at its two ends, and a connecting port (14) between the inlet (11) and the outlet (12). The valve body (1) is provided with a switching chamber (13), which is located on the connecting port (14). A valve core (3) is slidably connected inside the switching chamber (13). The valve core (3) can be sealed with the connecting port (14). A pressure regulating component (4) is provided inside the switching chamber (13). A pressure regulating component (4) and the valve core (3) form a pressure changing chamber (131). A pressure boosting pipe (5) and a pressure relief pipe (6) are connected to the switching chamber (13). The other end of the pressure boosting pipe (5) is connected to the pressure changing chamber (131). During normal operation, the valve core (3) is blocked in the opening of the pressure boosting pipe (5) and the pressure relief pipe (6).

2. The constant pressure regulating device for heat pump air conditioning according to claim 1, characterized in that: The booster pipe (5) is located on the side near the connection port (14). When the valve core (3) is opened too wide, the booster pipe (5) is connected to the water inlet (11).

3. The constant pressure regulating device for heat pump air conditioners according to claim 2, characterized in that: The pressure relief pipe (6) is located on the side away from the connecting port (14). The other end of the pressure relief pipe (6) is connected to the water outlet (12). When the valve core (3) is opened too low, the pressure relief pipe (6) connects the pressure transformer chamber (131) and the water outlet (12).

4. The constant pressure regulating device for heat pump air conditioning according to claim 1, characterized in that: The pressure regulating component (4) includes a pressure plate (41), on which a diaphragm (42) is provided. The diaphragm (42) covers the opening of the switch cavity (13), and a cover (2) is installed on the opening of the switch cavity (13). A spring (43) is provided on the pressure plate (41), and the other end of the spring (43) is connected to the valve core (3).

5. The constant pressure regulating device for heat pump air conditioning according to claim 4, characterized in that: The diaphragm (42) is a rubber membrane.

6. The constant pressure regulating device for heat pump air conditioning according to claim 5, characterized in that: The pressure plate (41) is provided with a limiting post (411), and the valve core (3) is provided with a limiting cylinder (31). The limiting post (411) and the limiting cylinder (31) both extend along the axial direction of the switching cavity (13). The limiting post (411) is inserted into the spring (43), and the limiting cylinder (31) surrounds the outside of the spring (43).

Images