Heat exchange system of water source heat pump

Abstract

The utility model belongs to the field of water source heat pumps, and provides a heat exchange system of a water source heat pump, which comprises a water well, a heat pump arranged on one side of the water well, a medium leading-in pipe arranged at one end of the heat pump and a medium leading-in pipe arranged at the other end of the heat pump, one end of the medium leading-in pipe extends below the water surface in the water well, and the other end of the medium leading-in pipe is connected with the heat pump. The medium leading-in pipe comprises a sleeve arranged on the periphery of the part, in the water well, of the medium leading-out pipe in a sleeving mode and a connecting pipe connected to one side of the top end of the sleeve, and the connecting piece is connected with the connecting pipe. The connecting piece comprises an installation pipe arranged on the outer side of the connecting pipe in a sleeving mode, an insertion pipe arranged at one end of the medium conveying equipment, an insertion groove formed in one side of the connecting pipe, an insertion rod arranged on one side of the insertion pipe, an installation groove formed in one side of the insertion rod and a through hole formed in one side of the connecting pipe. According to the utility model, a plurality of recharge wells in the prior art do not need to be arranged, so that the purposes of lifting and recharging in the same well are realized, and the loss of water resources is prevented.

Description

TECHNICAL FIELD

[0001] The utility model belongs to water source heat pump field, concretely speaking, a water source heat pump heat exchange system. BACKGROUND

[0002] Water source heat pump as a kind of efficient energy-saving heating and refrigeration system, because it utilizes geothermal energy and receives extensive attention, the existing water source heat pump heat exchange system usually includes water well, heat pump and medium withdrawal pipe and medium introduction pipe and other components, its working principle is to realize the exchange of heat by the circulation of medium in water well, at present, the return water mode of water source heat pump heat exchange system that has been implemented installation all adopts "multiple well recharge" mode. That is, water is pumped from a water source well, the cold or heat in water is taken away by the heat exchanger of heat pump host, and then water is discharged, and recharged to two or more than two water source wells, to achieve the purpose that water can be recharged in the same layer, with large investment, and in the operation process, due to the reasons such as that recharging well is not cleaned in time or does not reach the same water source layer, water cannot be recharged 100%, resulting in the loss of water resources even exhaustion, which needs to be improved, and in the use process, it is difficult to quickly fix, install, disassemble and overhaul the pipeline, so as to affect the overhaul efficiency of the device, and great inconvenience is caused.

[0003] Therefore, the skilled in the art proposes a water source heat pump heat exchange system to solve the problems in the background art. CONTENT OF UTILITY MODEL

[0004] In order to solve the above technical problems, the utility model provides a water source heat pump heat exchange system to solve the problems in the prior art.

[0005] A water source heat pump heat exchange system, comprising a water well, a heat pump arranged on one side of the water well, a medium withdrawal pipe arranged at one end of the heat pump and a medium introduction pipe arranged at the other end of the heat pump, one end of the medium withdrawal pipe is arranged below the water surface in the water well and the other end is connected with the heat pump, the medium introduction pipe comprises a sleeve arranged around the part of the medium withdrawal pipe in the water well and a connecting pipe connected with one side of the top end of the sleeve, the sleeve is a cylinder with a closed top end and an open bottom end, a heat insulation layer is arranged on the outer periphery of the medium withdrawal pipe in the sleeve, and a medium conveying device is arranged on the connecting pipe of the medium introduction pipe.

[0006] A connecting piece is arranged on one side of the medium conveying device, the connecting piece is connected with the connecting pipe, the connecting piece comprises a mounting pipe arranged around the outer side of the connecting pipe, a plug pipe arranged on one end of the medium conveying device, a plug slot arranged on one side of the connecting pipe, a plug rod arranged on one side of the plug pipe, a mounting slot arranged on one side of the plug rod, a through hole arranged on one side of the connecting pipe, a clamping block slidingly arranged in the mounting slot and a compression spring arranged on the inner wall of the mounting slot, one end of the clamping block extends into the through hole and is slidingly arranged therein.

[0007] Preferably, one side of the connecting pipe is further provided with a mounting block, sliding clamping blocks are arranged on the two sides of the mounting block, screw holes are formed in the side walls of the clamping blocks, locking bolts are threadedly connected in the screw holes, and the locking bolts penetrate through the clamping blocks and the mounting block and are threadedly connected with the mounting block.

[0008] Preferably, one side of the mounting pipe is further provided with a dismounting piece, the dismounting piece comprises a sliding rod arranged on one side of the mounting pipe, a sliding ring slidingly arranged on one side of the sliding rod, a tension spring sleeved on the outer side of the sliding rod, a groove formed on one side of the sliding ring, a top block slidingly arranged in the groove and a reset spring arranged on the inner side of the groove, and the elastic coefficient of the reset spring is greater than that of the compression spring.

[0009] Preferably, the heat insulation layer is an aerogel felt layer, a first aluminum foil layer is further arranged outside the aerogel felt layer, a polyurethane foaming agent protection layer is further arranged outside the first aluminum foil layer, and a first aluminum foil layer is further arranged outside the polyurethane foaming agent protection layer.

[0010] Preferably, the heat insulation layer is a plurality of cotton threads spirally arranged outside the medium withdrawal pipe.

[0011] Preferably, the top end of the sleeve is located above the ground, the bottom end of the sleeve is lower than the bottom end of the medium withdrawal pipe and close to the bottom end of the water well, and the connecting pipe is connected with the side wall of the sleeve on the ground.

[0012] Preferably, the medium withdrawal pipe and the medium introduction pipe are PVC pipes or PE pipes.

[0013] Preferably, the medium withdrawal pipe extends to a position below the liquid surface of the water well and lower than one half of the liquid surface.

[0014] Compared with the prior art, the water source heat pump heat exchange system has the following beneficial effects:

[0015] 1. The water source heat pump heat exchange system of the utility model moves the hot water resources in the water well upwards along the sleeve of the medium introduction pipe, then transports the hot water resources to the heat pump for external heat supply under the action of the medium conveying equipment, and returns the cooled water resources to the water well through the medium withdrawal pipe. In the heat exchange process of the medium introduction pipe and the medium withdrawal pipe, the water body around the sleeve in the water well and the soil heat source around the water well automatically form heat exchange. Compared with the prior art, the utility model does not need to set multiple recharge wells, saves investment, realizes the purpose of improving and recharging with the same well, and prevents the loss of water resources.

[0016] 2. The connecting piece is arranged, so that the plug pipe and the connecting pipe can be quickly fixed, connected, disassembled and maintained, and the long-term stable operation and the maintenance characteristics of the system are further ensured.

[0017] 3. The utility model discloses a mounting block, the two sides of mounting block are provided with clamping block and can be conveniently fixed and clamped after the fixed communication of the insertion pipe and the connecting pipe, and the connection stability of the pipeline is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the whole structure schematic diagram of the utility model;

[0019] Figure 2 It is Figure 1 It is the structure enlarged view of A place in the middle;

[0020] Figure 3 It is the structure schematic diagram of the sleeve pipe in the utility model;

[0021] Figure 4 It is the sectional view of the insertion pipe in the utility model;

[0022] Figure 5 It is Figure 4 It is the structure enlarged view of B place in the middle;

[0023] Figure 6 It is Figure 1 It is the sectional view of another embodiment of the medium lead-out pipe provided with the heat insulation layer in the middle;

[0024] Figure 7 It is Figure 1 It is the sectional view of still another embodiment of the medium lead-out pipe provided with the heat insulation layer in the middle;

[0025] In the drawing:

[0026] 10, water well; 20, heat pump; 30, medium lead-out pipe; 33, heat insulation layer; 36, first aluminum foil layer; 37, polyurethane foaming agent protection layer; 38, second aluminum foil layer; 39, sleeve pipe; 50, medium lead-in pipe; 51, sleeve; 52, connecting pipe; 55, medium conveying equipment; 60, connecting piece; 61, mounting pipe; 62, insertion pipe; 63, insertion slot; 64, insertion rod; 65, mounting slot; 66, through hole; 67, clamping block; 68, compression spring; 70, mounting block; 71, clamping block; 72, locking bolt; 80, dismounting piece; 81, sliding rod; 82, sliding ring; 83, tension spring; 84, recess; 85, top block; 86, reset spring. DETAILED DESCRIPTION

[0027] The embodiments of the utility model will be further described in detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.

[0028] Example one: as shown in the drawings Figure 1 to the drawings Figure 6As shown: This utility model provides a water source heat pump 20 heat exchange system, which includes a water well 10, a heat pump 20, a medium withdrawal pipe 30 disposed at one end of the heat pump 20 and a medium inlet pipe 50 disposed at the other end of the heat pump 20. One end of the medium withdrawal pipe 30 extends below the water surface in the water well 10 and the other end is connected to the heat pump 20. The medium inlet pipe 50 includes a sleeve 51 sleeved around the part of the medium withdrawal pipe 30 inside the water well 10 and a connecting pipe 52 connected to one side of the top end of the sleeve 51.

[0029] The medium withdrawal pipe 30 extends below the liquid surface of the water well 10, specifically located at a position halfway below the liquid surface inside the water well 10. The medium introduction pipe 50 includes a sleeve 51 fitted around the outer periphery of the portion of the medium withdrawal pipe 30 inside the water well 10, and a connecting pipe 52 connected to one side of the top of the sleeve 51. The medium withdrawal pipe 30 and the medium introduction pipe 50 can be either PVC pipes or PE pipes. The sleeve 51 is a cylindrical body with a closed top and an open bottom. In this embodiment, the top of the sleeve 51 is located above the ground, and its bottom is lower than the bottom of the medium withdrawal pipe 30 and close to the bottom of the water well 10 without obstructing the bottom of the water well 10. A heat insulation layer 33 is provided on the outer peripheral surface of the medium withdrawal pipe 30 inside the sleeve 51. The connecting pipe 52 is connected to the side wall of the sleeve 51 on the ground. A medium conveying device 55 is provided on the connecting pipe 52 of the medium introduction pipe 50. Please also refer to Figure 6 In specific implementation, the heat insulation layer 33 can be an aerogel felt layer, and a first aluminum foil layer 36 is provided outside the aerogel felt layer. In actual application, a polyurethane foam protective layer 37 can also be provided outside the first aluminum foil layer 36, and a second aluminum foil layer 38 is provided outside the polyurethane foam protective layer 37.

[0030] In use, the hot water in the well moves upward along the sleeve 51 of the medium inlet pipe, and then is transported to the heat pump 20 for external heating through the connecting pipe 52 under the action of the medium conveying equipment 55. The cooled water is returned to the well through the medium outlet pipe 30. During the heat exchange process in the medium inlet pipe 50 and the medium outlet pipe 30, the water in the well 10 around the sleeve 51 automatically forms a heat exchange with the soil heat source around the well (flow direction as shown by the arrow in the figure). Compared with the existing technology, there is no need to set up multiple reinjection wells, saving investment, thereby achieving the purpose of lifting and reinjecting from the same well and preventing the loss of water resources.

[0031] In specific implementations, the structure of the portion of the medium withdrawal pipe 30 equipped with the heat insulation layer 33 is not limited to this embodiment; it can also be... Figure 7 The structure shown is such that a tube 39 is installed over the heat insulation layer 33. In this case, the heat insulation layer 33 can be multiple cotton threads spirally wound around the outside of the medium withdrawal tube 30.

[0032] In the embodiment two, the medium conveying device 55 is provided with a connecting piece 60 on one side, the connecting piece 60 is connected with the connecting pipe 52, the connecting piece 60 comprises a mounting pipe 61 sleeved outside the connecting pipe 52, a plug pipe 62 provided on one end of the medium conveying device 55, a plug slot 63 opened on one side of the connecting pipe 52, a plug rod 64 provided on one side of the plug pipe 62, a mounting slot 65 opened on one side of the plug rod 64, a through hole 66 opened on one side of the connecting pipe 52, a clamping block 67 slidingly arranged in the mounting slot 65, and a compression spring 68 arranged on the inner wall of the mounting slot 65, one end of the clamping block 67 extends into the through hole 66 and is slidingly arranged therein, the two ends of the compression spring 68 are connected with the inner wall of the mounting slot 65 and the side wall of the clamping block 67 respectively, and during the insertion process, when the clamping block 67 slides to the through hole 66, the clamping block 67 is driven by the elastic force of the compression spring 68 to extend into the through hole 66, thereby realizing the quick fixed connection of the plug pipe 62 and the connecting pipe 52.

[0033] Further, one side of the connecting pipe 52 is further provided with a mounting block 70, the two sides of the mounting block 70 are slidingly provided with clamping blocks 71, the side wall of the clamping block 71 is provided with a threaded hole, and a locking bolt 72 is threadedly connected in the threaded hole, the locking bolt 72 penetrates through the clamping block 71 and the mounting block 70 and is threadedly connected therewith, after the fixed connection of the plug pipe 62 and the connecting pipe 52, the clamping block 71 is placed on the two sides of the mounting block 70, and then the locking bolt 72 is rotated to drive the clamping block 71 to move and assist in clamping and fixing the plug pipe 62, thereby improving the clamping effect of the pipeline.

[0034] Preferably, one side of the mounting pipe 61 is further provided with a dismounting piece 80, the dismounting piece 80 comprises a sliding rod 81 provided on one side of the mounting pipe 61, a sliding ring 82 slidingly arranged on one side of the sliding rod 81, a tension spring 83 sleeved outside the sliding rod 81, a groove 84 opened on one side of the sliding ring 82, a top block 85 slidingly arranged in the groove 84, and a reset spring 86 arranged in the inner side of the groove 84, the elastic coefficient of the reset spring 86 is greater than that of the compression spring 68, when it is necessary to dismount the plug pipe 62, the sliding ring 82 is pulled to move, the sliding ring 82 drives the top block 85 to slide on the surface of the connecting block, one end of the top block 85 is a spherical protrusion, when it slides to the through hole 66, the top block 85 is driven by the elastic force of the reset spring 86 to extend into the through hole 66, since the elastic coefficient of the reset spring 86 is greater than that of the compression spring 68, the reset spring 86 will squeeze the clamping block 67 to press it into the mounting slot 65, at this time, the plug pipe 62 can be quickly dismounted by being directly pulled out.

[0035] From the above, when installing, the insertion rod 64 on one side of the insertion pipe 62 is inserted into the insertion slot 63 on one side of the connecting pipe 52, and after the insertion pipe 62 and the connecting pipe 52 are fixedly connected, the clamping block 71 is placed on both sides of the mounting block 70, and then the locking bolt 72 is rotated to drive the clamping block 71 to move to assist in clamping and fixing the insertion pipe 62, thereby improving the clamping effect of the pipeline.

[0036] When it is necessary to disassemble the insertion pipe 62, the clamping block 71 is removed, the sliding ring 82 is moved, the sliding ring 82 drives the top block 85 to slide on the surface of the connecting pipe 52, one end of the top block 85 is a spherical protrusion, when sliding to the through hole 66, the top block 85 is driven to extend into the through hole 66 by the rebound force of the reset spring 86, and since the elastic coefficient of the reset spring 86 is greater than that of the compression spring 68, the reset spring 86 will press the clamping block 67 to press into the mounting groove 65, at this time, the insertion pipe 62 can be quickly disassembled by being directly pulled out.

[0037] The embodiments of the utility model are given for the purpose of example and description, although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary, and cannot be understood as the limitation of the utility model, and the ordinary skilled in the art can change, modify, replace and deform the above-mentioned embodiments within the scope of the utility model.

[0038] In the description of the utility model, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more features. The meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0039] In the utility model, unless otherwise specifically defined and limited, the terms "installation", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For the ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific situation.

[0040] In the utility model, unless another definite provision and limitation, first feature is on second feature "on" or "under", first and second features can be direct contact, or first and second features are indirect contact through intermediate medium. Moreover, first feature "on", "above" and "on" second feature can be first feature is directly above or obliquely above second feature, or only indicates that first feature horizontal height is higher than second feature. First feature "under", "below" and "under" second feature can be first feature is directly below or obliquely below second feature, or only indicates that first feature horizontal height is less than second feature.

[0041] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the present specification, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.

[0042] The utility model discloses the embodiment figure, only involve the structure of the disclosure embodiment, other structures can refer to the usual design, under the condition of not conflict, the same embodiment and different embodiments of the utility model can be combined mutually.

[0043] Although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical scheme recorded in the foregoing embodiments can be modified, or part of the technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model, should be included in the protection scope of the utility model.

Claims

1. A water source heat pump heat exchange system, characterized in that: The device includes a water well (10), a heat pump (20) located on one side of the water well (10), a medium withdrawal pipe (30) located at one end of the heat pump (20), and a medium inlet pipe (50) located at the other end of the heat pump (20). One end of the medium withdrawal pipe (30) extends below the water surface in the water well (10) and the other end is connected to the heat pump (20). The medium inlet pipe (50) includes a sleeve (51) fitted around the part of the medium withdrawal pipe (30) inside the water well (10) and a connecting pipe (52) connected to the top side of the sleeve (51). The sleeve (51) is a cylinder with a closed top and an open bottom. The outer circumferential surface of the medium withdrawal pipe (30) inside the sleeve (51) is provided with a heat insulation layer (33). The connecting pipe (52) of the medium inlet pipe (50) is provided with a medium conveying device (55). A connector (60) is provided on one side of the medium conveying device (55). The connector (60) is connected to the connecting pipe (52). The connector (60) includes an installation pipe (61) sleeved on the outside of the connecting pipe (52), an insertion pipe (62) provided at one end of the medium conveying device (55), a slot (63) opened on one side of the connecting pipe (52), an insertion rod (64) provided on one side of the insertion pipe (62), an installation groove (65) opened on one side of the insertion rod (64), a through hole (66) opened on one side of the connecting pipe (52), a locking block (67) slidably provided in the installation groove (65), and a compression spring (68) provided on the inner side wall of the installation groove (65). One end of the locking block (67) extends into the through hole (66) and is slidably provided therewith.

2. The water source heat pump heat exchange system as described in claim 1, characterized in that: A mounting block (70) is also provided on one side of the connecting pipe (52). Clamping blocks (71) are slidably provided on both sides of the mounting block (70). A threaded hole is opened on the side wall of the clamping block (71). A locking bolt (72) is threadedly connected in the threaded hole. The locking bolt (72) passes through the clamping block (71) and the mounting block (70) and is threadedly connected to them.

3. The water source heat pump heat exchange system as described in claim 2, characterized in that: A disassembly component (80) is also provided on one side of the mounting tube (61). The disassembly component (80) includes a slide rod (81) provided on one side of the mounting tube (61), a sliding ring (82) slidably provided on one side of the slide rod (81), a tension spring (83) sleeved on the outside of the slide rod (81), a groove (84) opened on one side of the sliding ring (82), a top block (85) slidably provided in the groove (84), and a return spring (86) provided on the inside of the groove (84). The elastic coefficient of the return spring (86) is greater than that of the compression spring (68).

4. The water source heat pump heat exchange system as described in claim 3, characterized in that: The heat insulation layer (33) is an aerogel felt layer, and a first aluminum foil layer (36) is provided outside the aerogel felt layer. A polyurethane foaming agent protective layer (37) is provided outside the first aluminum foil layer (36), and the first aluminum foil layer (36) is provided outside the polyurethane foaming agent protective layer (37).

5. The water source heat pump heat exchange system as described in claim 1, characterized in that: The heat insulation layer (33) consists of multiple cotton threads spirally wound around the periphery of the medium withdrawal tube (30), and a sleeve (39) is also fitted over the heat insulation layer (33).

6. The water source heat pump heat exchange system as described in claim 5, characterized in that: The top of the sleeve (51) is located above the ground, and its bottom end is lower than the bottom end of the medium withdrawal pipe (30) and close to the bottom end of the well (10). The connecting pipe (52) is connected to the side wall of the sleeve (51) on the ground.

7. The water source heat pump heat exchange system as described in claim 6, characterized in that: The medium withdrawal pipe (30) and the medium introduction pipe (50) are PVC pipes or PE pipes, respectively.

8. The water source heat pump heat exchange system as described in claim 7, characterized in that: The medium withdrawal pipe (30) extends to a position below the water surface of the well (10) and below half the water surface.

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