Efficient heat exchange type ground source heat pump

Abstract

The utility model discloses an efficient heat exchange type ground source heat pump, and relates to the field of ground source heat pumps, the efficient heat exchange type ground source heat pump comprises a pump body, the input end and the output end of the pump body are connected with connecting shells, one-way mechanisms are installed in the two connecting shells respectively, one one-way mechanism is used for one-way liquid inlet, the other one-way mechanism is used for one-way liquid outlet, and the other one-way mechanism is used for one-way liquid outlet. The connecting shell is of a split structure; the connecting shell comprises a fixed shell, a movable shell, a butt joint assembly and an abutting rod assembly. The butt joint assembly is used for conducting accurate butt joint on the fixed shell and the movable shell which are in the separated state, and the butt joint dislocation condition is prevented. According to the terrestrial heat exchange device, by arranging the butt joint assembly, the abutting rod assembly, the movable shell and the fixed shell, when the terrestrial heat exchange effect is poor due to metal fatigue of the reset spring, the reset spring can be rapidly replaced by rapidly disassembling and assembling the movable shell.

Description

Technical Field

[0001] The utility model relates to the field of geothermal heat pumps, in particular to a high-efficiency heat exchange type geothermal heat pump. Background Art

[0002] Geothermal heat pumps are generally used in conjunction with buried heat exchange tubes, and the refrigerant and geothermal energy are exchanged for heat, thereby achieving the purpose of heat dissipation without the need for a cooling fan.

[0003] In the prior art, in order to ensure the effective use of geothermal energy, a one-way valve is used to achieve one-way movement of the refrigerant. However, during the reciprocating motion of the driving mechanism, the one-way valve is prone to incomplete spring reset after long-term use, resulting in poor one-way movement of the refrigerant and reducing the utilization rate of geothermal energy. Based on this, a high-efficiency heat exchange ground source heat pump is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a high-efficiency heat exchange type ground source heat pump in order to solve the problems in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-efficiency heat exchange type ground source heat pump, comprising a pump body, a driving mechanism is installed at the end cover of the pump body, the input end and the output end of the pump body are both connected to a connecting shell, and one-way mechanisms are respectively installed inside the two connecting shells, one of the one-way mechanisms is used for one-way liquid inlet, and the other one-way mechanism is used for one-way liquid outlet, and the connecting shell is a split structure;

[0006] The connecting shell comprises a fixed shell, a movable shell, a docking assembly and a stop rod assembly;

[0007] The docking assembly is used to accurately dock the fixed shell and the movable shell in a separated state to prevent docking misalignment;

[0008] The push rod assembly is used to form a pre-connection force after the fixed shell and the movable shell are docked, so as to prevent the fixed shell and the movable shell from being separated after the docking.

[0009] As a further solution of the utility model: the docking assembly includes: a No. 1 fixing plate, a No. 2 fixing plate with a docking hole and a docking rod;

[0010] The two No. 1 fixing plates are symmetrically connected to the two ends of the outer wall of the fixing shell, and the docking hole is opened inside the No. 1 fixing plate;

[0011] The second fixing plate is symmetrically connected to the two ends of the outer wall of the moving shell, the docking rod is integrally formed on the docking end surface of the second fixing plate, and the inner diameter of the docking hole is equal to the outer diameter of the docking rod.

[0012] As a further solution of the utility model: the push rod assembly includes: a rotating push rod, a receiving groove, a threaded groove, a rotating rod and a torsion spring;

[0013] The receiving groove passes through the docking rod, the rotating lever is rotatably connected to the inner wall of the receiving groove, and the thread groove is continuously formed on the outer walls of the docking rod and the rotating lever;

[0014] The rotating rod is integrally formed at both ends of the rotating support rod, and the rotating rod is rotatably connected to the docking rod. A circular groove connected to the inner cavity of the accommodating groove is provided inside the docking rod. The torsion spring is installed on the inner wall of the circular groove, and the two ends of the torsion spring are respectively engaged with the circular groove and the rotating support rod.

[0015] As a further solution of the utility model: the driving mechanism comprises: a driving motor, a disc, a piston rod and a piston;

[0016] The eccentric position of the disc is connected to the output end of the driving motor. An annular groove is formed on the disc. A sliding block movably connected to the annular groove is formed at the contact position between the piston rod and the annular groove. The piston is connected to the end of the piston rod and is located in the inner cavity of the pump body.

[0017] As a further solution of the utility model: the one-way mechanism includes a return spring, a connecting ball, and a flow channel;

[0018] The return spring is connected to the connecting ball. The return spring in the reset state is used to drive the connecting ball to close the connecting channel, and the return spring in the compressed state is used to drive the connecting ball to open the connecting channel.

[0019] As a further solution of the utility model: the docking rod completely inserted into the inner wall of the docking hole drives the rotating lever to be misaligned with the docking hole, and the rotating lever misaligned with the docking hole rotates under the action of the torsion spring.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] By arranging a docking assembly, a push rod assembly, a movable shell and a fixed shell, when metal fatigue occurs in the reset spring and causes poor geothermal heat exchange effect, the reset spring can be quickly replaced by quickly disassembling and installing the movable shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the utility model;

[0023] Figure 2 This is a schematic diagram of the docking structure of the docking assembly of the utility model;

[0024] Figure 3 It is a structural schematic diagram of the push rod assembly of the utility model;

[0025] Figure 4 It is a schematic diagram of the opening of the rotating lever of the utility model;

[0026] Figure 5 It is a schematic diagram of the internal structure of the docking rod of the utility model.

[0027] In the figure: 1. pump body; 2. connecting shell; 201. fixed shell; 202. movable shell; 203. No. 1 fixed plate; 204. docking hole; 205. No. 2 fixed plate; 206. docking rod; 207. rotating lever; 208. accommodating groove; 209. threaded groove; 2010. rotating rod; 2011. torsion spring; 3. one-way mechanism; 4. driving mechanism. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1 to Figure 5 In an embodiment of the utility model, a high-efficiency heat exchange type ground source heat pump includes a pump body 1, a driving mechanism 4 is installed at the end cover of the pump body 1, the input end and the output end of the pump body 1 are connected to a connecting shell 2, and one-way mechanisms 3 are respectively installed inside the two connecting shells 2, one one-way mechanism 3 is used for one-way liquid inlet, and the other one-way mechanism 3 is used for one-way liquid outlet, and the connecting shell 2 is a split structure.

[0030] The connecting shell 2 includes a fixed shell 201, a movable shell 202, a docking assembly and a stop rod assembly; the docking assembly is used to accurately dock the fixed shell 201 and the movable shell 202 in a separated state to prevent docking misalignment.

[0031] The stop rod assembly is used to form a pre-connection force after the fixed shell 201 and the movable shell 202 are docked, so as to prevent the fixed shell 201 and the movable shell 202 from being separated after the docking.

[0032] In this embodiment: when using geothermal energy, the driving mechanism 4 is started, and the driving mechanism 4 performs a reciprocating driving action, thereby sucking the refrigerant in the coil from the input end and discharging it from the output end. Since the coil is buried underground and geothermal energy is used for heating operations, during the operation of the driving mechanism 4, the two one-way mechanisms 3 can maintain the one-way transmission effect of the refrigerant. When the spring in the one-way mechanism 3 suffers from metal fatigue after frequent use, and the spring cannot be effectively reset or is even damaged, the fixed shell 201 is separated from the movable shell 202, and the spring can be taken out and replaced with a new spring to ensure the efficient heat exchange performance of the device.

[0033] Please refer to Figure 2 The docking assembly includes: a No. 1 fixing plate 203, a docking hole 204, a No. 2 fixing plate 205 and a docking rod 206; the two No. 1 fixing plates 203 are symmetrically connected to the two ends of the outer wall of the fixed shell 201, and the docking hole 204 is opened inside the No. 1 fixing plate 203; the No. 2 fixing plate 205 is symmetrically connected to the two ends of the outer wall of the movable shell 202, and the docking rod 206 is integrally formed on the docking end surface of the No. 2 fixing plate 205, and the inner diameter of the docking hole 204 is equal to the outer diameter of the docking rod 206.

[0034] In this embodiment, when the mobile shell 202 in the separated state is docked with the fixed shell 201 in the fixed state, the docking rod 206 is aligned with the docking hole 204, and the docking rod 206 is pushed to effectively dock with the docking hole 204 until the docking rod 206 is completely docked with the docking hole 204.

[0035] Please refer to Figure 3 , Figure 4 and Figure 5 The push rod assembly includes: a rotating push rod 207, a receiving groove 208, a threaded groove 209, a rotating rod 2010 and a torsion spring 2011. The receiving groove 208 penetrates the docking rod 206, the rotating push rod 207 is rotatably connected to the inner wall of the receiving groove 208, and the threaded groove 209 is continuously formed on the outer wall of the docking rod 206 and the rotating push rod 207.

[0036] The rotating rod 2010 is integrally formed at both ends of the rotating lever 207, and the rotating rod 2010 is rotatably connected to the docking rod 206. A circular groove communicating with the inner cavity of the receiving groove 208 is provided inside the docking rod 206, and the torsion spring 2011 is installed on the inner wall of the circular groove, and the two ends of the torsion spring 2011 are respectively in the circular groove. The rotating lever 207 is engaged, and the docking rod 206 fully inserted into the inner wall of the docking hole 204 drives the rotating lever 207 to be misaligned with the docking hole 204, and the rotating lever 207 misaligned with the docking hole 204 rotates under the action of the torsion spring 2011.

[0037] In this embodiment: during the process of inserting the docking rod 206 into the docking hole 204, when the inclined surface of the rotating push rod 207 contacts the edge of the docking hole 204, the docking edge of the docking hole 204 applies an extrusion force to the rotating push rod 207, so that the rotating push rod 207 is retracted into the accommodating groove 208. If the retraction is not smooth, the rotating push rod 207 can be pushed by hand to rotate so that the rotating push rod 207 can completely enter the accommodating groove 208, thereby achieving the purpose of fully inserting the docking rod 206 into the inner cavity of the docking hole 204.

[0038] After the docking rod 206 is fully inserted into the docking hole 204, the docking hole 204 and the rotating push rod 207 are misaligned. At this time, the torsion spring 2011 is reset, driving the rotating push rod 207 to rotate outward, and the non-rotating end of the rotating push rod 207 is abutted against the end face of the No. 1 fixed plate 203. At this time, a pre-connection force is formed, and the thrust applied to the movable shell 202 can be removed. At this time, the movable shell 202 remains relatively stable under the resistance of multiple rotating push rods 207.

[0039] After that, the nut is used, and the nut is connected with the thread groove 209. During the rotation process, the nut gradually approaches the first fixed plate 203. When the nut contacts the rotating push rod 207, the butt edge of the nut applies an extrusion force to the rotating push rod 207, so that the rotating push rod 207 is retracted into the receiving groove 208. If the retraction is not smooth, the rotating push rod 207 can be pushed by hand to rotate, so that the rotating push rod 207 completely enters the receiving groove 208 until the nut is completely fixed. When disassembling, the movable shell 202 can be removed by loosening the nut and performing the opposite operation to the above operation, and a new reset spring can be replaced.

[0040] Please refer to Figure 1 The driving mechanism 4 includes: a driving motor, a disc, a piston rod and a piston; the eccentric position of the disc is connected to the output end of the driving motor, an annular groove is formed on the disc, and a sliding block movably connected to the annular groove is formed at the contact position between the piston rod and the annular groove. The piston is connected to the end of the piston rod and is located in the inner cavity of the pump body 1.

[0041] In this embodiment, the driving motor drives the disc to rotate. During the rotation of the disc, there are the closest point and the farthest point, thereby pulling the piston rod to move back and forth. The reciprocating movement of the piston rod can pull the piston to perform reciprocating suction and pushing in the pump body 1.

[0042] Please refer to Figure 2 The one-way mechanism 3 includes a reset spring, a connecting ball, and a flow channel; the reset spring is connected to the connecting ball, the reset spring in the reset state is used to drive the connecting ball to close the connecting channel, and the reset spring in the compressed state is used to drive the connecting ball to open the connecting channel.

[0043] In this embodiment: when the piston performs a suction action, the one-way mechanism 3 located at the input end is actuated, and the connecting ball at this position moves under the action of the suction force, and compresses the reset spring to open the connecting channel, thereby allowing the refrigerant to enter the pump body 1; when the piston performs a pushing action, the reset spring located at the input end drives the connecting ball connected thereto to reset, and the connecting ball located at the output end moves under the action of the thrust, and drives the reset spring to stretch, thereby realizing the one-way movement of the refrigerant.

[0044] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-efficiency heat exchange type ground source heat pump, comprising a pump body (1), a driving mechanism (4) being installed at the end cover of the pump body (1), an input end and an output end of the pump body (1) being connected to a connecting shell (2), two one-way mechanisms (3) being installed inside the two connecting shells (2), one of the one-way mechanisms (3) being used for one-way liquid inlet, and the other one of the one-way mechanisms (3) being used for one-way liquid outlet, characterized in that: The connecting shell (2) is a split structure; The connecting shell (2) comprises a fixed shell (201), a movable shell (202), a docking assembly and a stop rod assembly; The docking assembly is used to accurately dock the fixed shell (201) and the movable shell (202) in a separated state; The stop rod assembly is used to form a pre-connection force after the fixed shell (201) and the movable shell (202) are docked, thereby preventing the fixed shell (201) and the movable shell (202) from being separated after the docking.

2. A high-efficiency heat exchange ground source heat pump according to claim 1, characterized in that: The docking assembly comprises: a first fixing plate (203), a docking hole (204), a second fixing plate (205) and a docking rod (206); The two No. 1 fixing plates (203) are symmetrically connected to two ends of the outer wall of the fixing shell (201), and the docking hole (204) is opened inside the No. 1 fixing plate (203); The second fixing plate (205) is symmetrically connected to the two ends of the outer wall of the movable shell (202), the docking rod (206) is integrally formed on the docking end surface of the second fixing plate (205), and the inner diameter of the docking hole (204) is equal to the outer diameter of the docking rod (206).

3. A high-efficiency heat exchange ground source heat pump according to claim 2, characterized in that: The support rod assembly comprises: a rotating support rod (207), a receiving groove (208), a threaded groove (209), a rotating rod (2010) and a torsion spring (2011); The receiving groove (208) penetrates the docking rod (206), the rotating support rod (207) is rotatably connected to the inner wall of the receiving groove (208), and the thread groove (209) is continuously formed on the outer walls of the docking rod (206) and the rotating support rod (207); The rotating rod (2010) is integrally formed at both ends of the rotating support rod (207), and the rotating rod (2010) is rotatably connected to the docking rod (206). A circular groove communicating with the inner cavity of the accommodating groove (208) is provided inside the docking rod (206). The torsion spring (2011) is mounted on the inner wall of the circular groove, and the two ends of the torsion spring (2011) are respectively engaged with the circular groove and the rotating support rod (207).

4. A high-efficiency heat exchange ground source heat pump according to claim 1, characterized in that: The driving mechanism (4) comprises: a driving motor, a disc, a piston rod and a piston; The eccentric position of the disc is connected to the output end of the drive motor, an annular groove is formed on the disc, a sliding block movably connected to the annular groove is formed at the contact position between the piston rod and the annular groove, and the piston is connected to the end of the piston rod and is located in the inner cavity of the pump body (1).

5. The high-efficiency heat exchange ground source heat pump according to claim 1, characterized in that: The one-way mechanism (3) comprises a return spring, a connecting ball, and a flow channel; The return spring is connected to the connecting ball. The return spring in the reset state is used to drive the connecting ball to close the connecting channel, and the return spring in the compressed state is used to drive the connecting ball to open the connecting channel.

6. A high-efficiency heat exchange ground source heat pump according to claim 3, characterized in that: The docking rod (206) fully inserted into the inner wall of the docking hole (204) drives the rotating lever (207) to be misaligned with the docking hole (204), and the rotating lever (207) misaligned with the docking hole (204) rotates under the action of the torsion spring (2011).

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