Pipeline valve for geothermal energy pump

Abstract

The utility model relates to the technical field of geothermal energy pumps, in particular to a pipeline valve for a geothermal energy pump, which comprises a valve body, a valve rod and an electromagnet component. The valve rod is arranged in the valve body and connected with the valve plate, and the electromagnet assembly can drive the valve plate to move along the center line of the valve rod. A branch pipe is arranged on the valve body, and the two ends of the branch pipe are inserted into the valve body and located on the two sides of the valve plate respectively. The branch pipe comprises an opening and closing plate, the opening and closing plate is connected with the inner wall of the branch pipe through a rotating shaft, and a torsional spring is installed on the opening and closing plate. The branch pipe is arranged at the position of the valve body, when the valve body cannot be controlled and is in a closed state, the branch pipe can serve as a temporary channel for allowing cooling liquid to flow, flowing of the cooling liquid can be controlled through valves at other positions, and even if the pipeline valve cannot be controlled when being closed, a geothermal energy pump can still conduct heat exchange.

Description

Technical Field

[0001] The utility model belongs to the technical field of geothermal energy pumps, and in particular relates to a pipeline valve for geothermal energy pumps. Background Art

[0002] Geothermal heat pumps, also known as ground-source heat pumps, are systems that utilize geothermal resources shallow below the Earth's surface. Using heat pump technology, these systems convert energy into electricity, providing winter heating, summer cooling, and year-round domestic hot water for buildings.

[0003] The geothermal energy pump includes underground buried pipes, which are in contact with the shallow underground soil or groundwater and can be used to heat or cool the coolant flowing in the underground buried pipes. These coolants flow into the room to increase or decrease the indoor temperature. Underground buried pipes are usually installed with pipeline valves that are easy to control. These pipeline valves are installed together with the underground buried pipes and are at a certain depth underground. They are difficult to maintain and usually require specific maintenance and equipment for maintenance. If the pipeline valve cannot be controlled and the pipeline valve is in a closed state at this time, the coolant in the entire underground buried pipe cannot flow normally, causing the entire geothermal energy pump to be unusable. It takes a certain amount of time for maintenance personnel and equipment to arrive at the site. During this waiting period, the geothermal energy pump cannot perform cooling or heating. Therefore, the present application proposes a pipeline valve for a geothermal energy pump. Utility Model Content

[0004] The purpose of the present utility model is to provide a pipeline valve for a geothermal energy pump to solve the problems raised by the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a pipeline valve for a geothermal energy pump, comprising a valve body, a valve stem, and an electromagnet assembly, wherein the valve body is arranged at the position of an underground buried pipe in a geothermal energy pump;

[0006] The valve stem is arranged in the valve body, the valve stem is connected to the valve plate, and the electromagnet assembly can drive the valve plate to move along the center line of the valve stem;

[0007] The valve body is provided with a branch pipe, both ends of the branch pipe are inserted into the valve body, and the two ends of the branch pipe are respectively located on both sides of the valve plate;

[0008] The branch pipe includes an opening and closing plate, which is connected to the inner wall of the branch pipe through a rotating shaft. A torsion spring is installed at the opening and closing plate. The opening and closing plate has a locked state, a closed state, and a flow state. The opening and closing plate is divided into two semicircular areas by the center line of the rotating shaft. A semicircular blocking box is provided in one of the semicircular areas. A push-pull plate is inserted in the semicircular blocking box. The push-pull plate is connected to the blocking block. The moving range of the blocking block spans the two semicircular areas. When the opening and closing plate is in the locked state, the blocking block rests on the outer wall of the semicircular area on the side of the opening and closing plate away from the semicircular blocking box.

[0009] Preferably, both ends of the rotating shaft are respectively mounted on two mounting plates, and the mounting plates are in contact with the inner walls of the branch pipes.

[0010] Preferably, when the opening and closing plate is in a locked state or a closed state, the outer wall of the half-circle blocking box fits against the outer wall of the opening and closing plate.

[0011] Preferably, when the opening and closing plate is in a closed state and a flow state, the blocking block is located in a semicircular area corresponding to the semicircle blocking box.

[0012] Preferably, the end of the push-pull plate away from the blocking block is connected to the piston plate, and the piston plate cooperates with the cavity inside the half-circle blocking box. A groove is provided at the side where the piston plate fits with the internal cavity of the half-circle blocking box. A sealing gasket is clamped in the groove, and a sealing sleeve is provided on the outer side of the push-pull plate. The push-pull plate is connected to a reset spring, and the other end of the reset spring is connected to the inner wall of the half-circle blocking box.

[0013] Preferably, a connecting rope is provided at one end of the piston plate away from the push-pull plate, the connecting rope is connected to the valve plate, the connecting rope passes through the end cover that cooperates with the half-circle blocking box, the connecting rope is inserted into the guide tube, and the guide tube is inserted into the valve body.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The utility model is provided with a branch pipe at the valve body, and the opening and closing plate in the branch pipe has a locked state, a closed state, and a flow state. The half-circle blocking box is located in one of the semicircular areas of the opening and closing plate, and the push-pull plate and the blocking block connected to the half-circle blocking box can move along the half-circle blocking box. Only when the opening and closing plate is in the closed state and the flow state, the blocking block is located in the semicircular area corresponding to the half-circle blocking box, and it can be opened. At this time, the valve plate connected to the push-pull plate by a connecting rope and other components closes the valve body. In this way, when the valve body cannot be controlled and is in the closed state, the branch pipe can serve as a temporary channel for the coolant to flow. The flow of the coolant can be controlled by valves at other positions. Even if the pipeline valve cannot be controlled when closed, the geothermal energy pump can still exchange heat.

[0016] 2. The valve plate of the utility model is connected to the push-pull plate, the blocking block and other components through a connecting rope. When the valve plate moves up, the connecting rope will loosen, and the reset spring connected to the push-pull plate will push it and the blocking block to move to the other semicircular area of ​​the opening and closing plate, and press the two semicircular areas of the opening and closing plate. In this way, the opening and closing plate is in a locked state. Even if the force of the coolant flow in the valve body is large, the branch pipe will not be opened, and the valve body can be operated normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is one of the structural schematic diagrams of the pipeline valve for geothermal energy pump in the present utility model.

[0018] Figure 2 This is the second structural diagram of the pipeline valve for geothermal energy pump in the utility model.

[0019] Figure 3 This is a schematic diagram of the internal structure of the valve body in the present utility model.

[0020] Figure 4 This is a structural diagram of the branch pipe and connecting rope in the utility model.

[0021] Figure 5 It is a structural schematic diagram of the opening and closing plate and the half-circle blocking box in the utility model.

[0022] In the figure: 1. Valve body; 2. Valve stem; 3. Electromagnet assembly; 4. Branch pipe; 5. Opening and closing plate; 6. Mounting plate; 7. Half-circle blocking box; 8. Push-pull plate; 9. Blocking block; 10. Return spring; 11. Piston plate; 12. Sealing gasket; 13. Connecting rope; 14. End cover; 15. Guide tube. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Reference Figure 1-Figure 5 A pipeline valve for a geothermal energy pump includes a valve body 1, a valve stem 2, and an electromagnet assembly 3. The valve body 1 is arranged at the position of an underground buried pipe in the geothermal energy pump. The underground buried pipe is usually arranged in a serpentine shape. The valve body 1 and the underground buried pipe are arranged at a certain depth underground. The underground buried pipe can exchange heat with the underground soil and water flow, thereby heating or cooling the coolant flowing therein, thereby increasing or decreasing the indoor temperature of the geothermal energy pump (also known as a ground source heat pump) installed. By utilizing the shallow geothermal resources on the earth's surface, energy conversion can be carried out to provide buildings with winter heating, summer cooling, and domestic hot water needs throughout the year. The ground source heat pump has the advantages of high efficiency, energy saving, green environmental protection, and strong stability.

[0025] The valve stem 2 is arranged in the valve body 1, and the valve stem 2 is connected to the valve plate. The electromagnet assembly 3 can drive the valve plate to move along the center line of the valve stem 2, and cooperate with the compression spring to achieve the function of opening and closing the valve body 1. Figure 4As shown, when the electromagnet assembly 3 is started, it can drive the valve plate to move upward, so that the valve body 1 can be opened. At this time, the coolant can flow in the valve body 1 and the underground buried pipe can also exchange heat. If the electromagnet assembly 3 is closed, the compression spring connected to the valve plate can move it downward to close the valve body 1. At this time, the coolant can no longer flow and the geothermal energy pump is also in an inoperative state.

[0026] When the electromagnet assembly 3 in the valve body 1 is damaged, the entire valve body 1 may be in an open state or in a closed state. If the valve body 1 is in an open state, the coolant flow can be controlled by other control valves on the entire geothermal energy pump, and the geothermal energy pump can still be used barely, and can still perform cooling and heating before the maintenance personnel arrive. However, when the electromagnet assembly 3 in the valve body 1 is damaged, the valve body 1 is in a closed state. At this time, the coolant cannot continue to flow, and the geothermal energy pump cannot function, and cannot perform cooling and heating before the maintenance personnel arrive. In order to allow emergency cooling and heating when the electromagnet assembly 3 in the valve body 1 in the closed state is damaged, a branch pipe 4 is provided at the valve body 1, and both ends of the branch pipe 4 are inserted into the valve body 1, and the two ends of the branch pipe 4 are respectively located on both sides of the valve plate, that is, when the branch pipe 4 is opened, it can form a channel bypassing the valve plate for allowing the coolant to flow.

[0027] Furthermore, the branch pipe 4 includes an opening and closing plate 5, which is connected to the inner wall of the branch pipe 4 through a rotating shaft, and a torsion spring is installed at the opening and closing plate 5. Figure 5 As shown, the torsion spring can give it a force to rotate toward one side of the squeezing opening and closing plate 5. The opening and closing plate 5 has a locked state, a closed state, and a flowing state. It should be noted that the two ends of the rotating shaft are respectively mounted on two mounting plates 6. The mounting plates 6 fit the inner wall of the branch pipe 4. The opening and closing plate 5 is divided into two semicircular areas by the center line of the rotating shaft. A half-circle blocking box 7 is provided in one of the semicircular areas. When the opening and closing plate 5 is in the locked state and the closed state, the outer wall of the half-circle blocking box 7 fits the outer wall of the opening and closing plate 5. A push-pull plate 8 is inserted in the half-circle blocking box 7. The push-pull plate 8 is connected to the blocking block 9. The moving range of the blocking block 9 spans In the two semicircular areas, when the opening and closing plate 5 is in a locked state, the blocking block 9 is against the outer wall of the semicircular area of ​​the opening and closing plate 5 on the side away from the semicircular blocking box 7. When the opening and closing plate 5 is in a closed state and a flow state, the blocking block 9 is in the semicircular area corresponding to the semicircular blocking box 7; when the opening and closing plate 5 is in a locked state, the branch pipe 4 is locked and the coolant cannot circulate. When the opening and closing plate 5 is in a closed state, the coolant pushes the opening and closing plate 5 open by pressure and then flows. When it is in a flow state, the coolant can flow, bypassing the valve stem 2 and the valve plate, and the ground source heat pump can still work for cooling and heating.

[0028] Furthermore, one end of the push-pull plate 8 away from the blocking block 9 is connected to the piston plate 11, and the piston plate 11 cooperates with the cavity inside the half-circle blocking box 7. A groove is provided on the side where the piston plate 11 fits with the internal cavity of the half-circle blocking box 7. A sealing gasket 12 is clamped in the groove, and a sealing sleeve is provided on the outer side of the push-pull plate 8. The push-pull plate 8 is connected to the return spring 10, and the other end of the return spring 10 is connected to the inner wall of the half-circle blocking box 7. A connecting rope 13 is provided on the end of the piston plate 11 away from the push-pull plate 8. The connecting rope 13 is connected to the valve plate, and the connecting rope 13 passes through the end cover 14 that cooperates with the half-circle blocking box 7. The connecting rope 13 is inserted into the guide tube 15, and the guide tube 15 is inserted into the valve body 1; Figure 5 As shown, the opening and closing plate 5 is in a closed state. At this time, it can rotate around the rotating shaft, but it is pushed by the force given by the torsion spring and cannot be opened. When the ground source heat pump is turned on, it drives the coolant to flow. The thrust given by the coolant can open the opening and closing plate 5, putting the opening and closing plate 5 in a flow state. At this time, the coolant can circulate and flow to perform cooling or heating. Figure 4 The connecting rope 13 is shown in a taut state.

[0029] Working principle:

[0030] The valve body 1 is installed near the underground pipe in the ground source heat pump and is used to control whether the coolant in the underground pipe flows. When the electromagnet assembly 3 in the valve body 1 is damaged, there are two situations. In one situation, the valve body 1 is in the open state. At this time, the coolant can still flow, and a certain degree of cooling and heating can still be performed before the maintenance personnel arrive;

[0031] In another case, the valve body 1 is in a closed state. At this time, the blocking block 9 is pulled by the valve plate and the valve stem 2 and is in one of the semicircular areas of the opening and closing plate 5. The opening and closing plate 5 can rotate around the rotating axis. The start-up of the ground source heat pump can convert the opening and closing plate 5 into a flow state, allowing the ground source heat pump to still perform cooling and heating operations.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pipeline valve for a geothermal energy pump, comprising a valve body (1), a valve stem (2), and an electromagnet assembly (3), characterized in that: The valve body (1) is arranged at the position of the underground buried pipe in the geothermal energy pump; The valve stem (2) is arranged in the valve body (1), the valve stem (2) is connected to the valve plate, and the electromagnet assembly (3) can drive the valve plate to move along the center line of the valve stem (2); The valve body (1) is provided with a branch pipe (4), both ends of the branch pipe (4) are inserted into the valve body (1), and the two ends of the branch pipe (4) are respectively located on both sides of the valve plate; The branch pipe (4) includes an opening and closing plate (5), which is connected to the inner wall of the branch pipe (4) through a rotating shaft. A torsion spring is installed at the opening and closing plate (5). The opening and closing plate (5) has a locked state, a closed state, and a flow state. The opening and closing plate (5) is divided into two semicircular areas by the center line of the rotating shaft. A semicircular blocking box (7) is provided in one of the semicircular areas. A push-pull plate (8) is inserted in the semicircular blocking box (7). The push-pull plate (8) is connected to a blocking block (9). The moving range of the blocking block (9) spans the two semicircular areas. When the opening and closing plate (5) is in the locked state, the blocking block (9) abuts against the outer wall of the semicircular area on the side of the opening and closing plate (5) away from the semicircular blocking box (7).

2. A pipeline valve for geothermal energy pump according to claim 1, characterized in that: The two ends of the rotating shaft are respectively mounted on two mounting plates (6), and the mounting plates (6) are in contact with the inner wall of the branch pipe (4).

3. A pipeline valve for geothermal energy pump according to claim 1, characterized in that: When the opening and closing plate (5) is in a locked state or a closed state, the outer wall of the half-circle blocking box (7) fits the outer wall of the opening and closing plate (5).

4. A pipeline valve for geothermal energy pump according to claim 3, characterized in that: When the opening and closing plate (5) is in a closed state and a flow-through state, the blocking block (9) is located in a semicircular area corresponding to the semicircular blocking box (7).

5. The pipeline valve for geothermal energy pump according to claim 1, characterized in that: One end of the push-pull plate (8) away from the blocking block (9) is connected to the piston plate (11), and the piston plate (11) cooperates with the cavity inside the half-circle blocking box (7). A groove is provided at the side where the piston plate (11) fits with the internal cavity of the half-circle blocking box (7), and a sealing gasket (12) is clamped in the groove. A sealing sleeve is provided on the outer side of the push-pull plate (8). The push-pull plate (8) is connected to the reset spring (10), and the other end of the reset spring (10) is connected to the inner wall of the half-circle blocking box (7).

6. A pipeline valve for a geothermal energy pump according to claim 5, characterized in that: A connecting rope (13) is provided at one end of the piston plate (11) away from the push-pull plate (8), and the connecting rope (13) is connected to the valve plate. The connecting rope (13) passes through an end cover (14) that cooperates with the half-circle blocking box (7), and the connecting rope (13) is inserted into a guide tube (15), and the guide tube (15) is inserted into the valve body (1).

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