Middle-deep geothermal water and heat pump series gradient utilization device

Abstract

The utility model discloses a mid-deep geothermal water and heat pump series gradient utilization device, which comprises a heat energy utilization assembly, a heat energy utilization assembly and a heat pump heat pump, the heat energy utilization assembly comprises a cyclone desander, and the cyclone desander comprises a cyclone tank, a connecting pipe, a slag hopper and a blow-off pipe; the synergistic assembly comprises a sand washing pipe, valves, two sets of first electric push rods, two sets of second electric push rods, a drainage plate, a fixing plate, a U-shaped groove and a connecting shaft, the sand washing pipe is fixed to the side edge of the connecting pipe, the valves are fixed to the side edge of the sand washing pipe and the side edge of the connecting pipe, and the first electric push rods and the second electric push rods are embedded in the lower bottom face of the slag hopper. The fixing plate and the U-shaped groove are fixed to the lower surface of the drainage plate. The utility model relates to a cyclone desander, in particular to a cyclone desander, and aims to solve the problems that when an existing cyclone desander is used, gravels fall into a slag hopper, a blow-off pipe needs to be opened to discharge the gravels when too much gravels are accumulated in the slag hopper, in the discharge process, the gravels and a small amount of greasy dirt cannot be completely discharged, and the long-term operation efficiency and cleanliness of equipment are affected.

Description

Technical Field

[0001] The utility model relates to the technical field of geothermal energy development and utilization, in particular to a device for cascaded utilization of medium-deep geothermal water in series with a heat pump. Background Technique

[0002] Geothermal water resources, that is, underground hot water resources, usually have a relatively high temperature and a relatively low mineral content. To reduce the dependence on fossil fuels and at the same time reduce environmental pollution, the utilization of geothermal water resources is becoming more and more extensive, and the device for cascaded utilization of medium-deep geothermal water in series with a heat pump can realize the efficient utilization of geothermal resources. When geothermal water is pumped out from the production well, it needs to be treated by sand removal, filtration, etc. to remove impurities in the geothermal water before utilization to reduce damage to equipment. Usually, a hydrocyclone is used to remove most of the sand and gravel.

[0003] When the existing hydrocyclone is in use, sand and gravel fall into the slag hopper. When the slag hopper accumulates too much, the sewage pipe needs to be opened to discharge the sand and gravel. However, in this discharge process, some sand and gravel and a small amount of oil cannot be completely discharged, which will affect the long-term operation efficiency and cleanliness of the equipment. Therefore, a device for cascaded utilization of medium-deep geothermal water in series with a heat pump is needed to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a device for cascaded utilization of medium-deep geothermal water in series with a heat pump to solve the problem that when the existing hydrocyclone is in use, sand and gravel fall into the slag hopper. When the slag hopper accumulates too much, the sewage pipe needs to be opened to discharge the sand and gravel. However, in this discharge process, some sand and gravel and a small amount of oil cannot be completely discharged, which will affect the long-term operation efficiency and cleanliness of the equipment as mentioned in the above background technique.

[0005] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0006] The utility model is a device for cascaded utilization of medium-deep geothermal water in series with a heat pump, including:

[0007] A heat energy utilization component, the heat energy utilization component includes a hydrocyclone, the hydrocyclone includes a cyclone tank, a connecting pipe, a slag hopper and a sewage pipe, the connecting pipe is fixed in the middle of the lower end of the cyclone tank, the slag hopper is fixed at the lower end of the connecting pipe, and the sewage pipe is fixed at the lower end of the slag hopper;

[0008] Efficiency enhancement component, the efficiency enhancement component includes a sand washing pipe, a valve, a first electric push rod, a second electric push rod, a drainage plate, a fixing plate, a U-shaped groove and a connecting shaft. The sand washing pipe is fixed on the side of the connecting pipe. The valves are respectively fixed on the side of the sand washing pipe and the side of the connecting pipe, and the valve on the connecting pipe is located above the sand washing pipe. There are two groups of the first electric push rod and the second electric push rod, which are embedded in the bottom surface of the slag hopper. The connecting shaft is fixed on the tops of the first electric push rod and the second electric push rod. The fixing plate and the U-shaped groove are fixed on the lower surface of the drainage plate, and the connecting shaft is respectively rotatably connected to the fixing plate and the U-shaped groove.

[0009] Further, the efficiency enhancement component further includes a baffle plate, and the baffle plate is welded on the outer ring of the lower surface of the drainage plate.

[0010] Further, the heat energy utilization component further includes a production well, a reinjection well and a circulation pipeline. The production well and the reinjection well are connected to the hydrocyclone through the circulation pipeline.

[0011] Further, the heat energy utilization component further includes a filter, a primary heat exchanger, a secondary heat exchanger, a heating circulating water pipeline, a heat pump unit, a cooling tower and a pump. The filter is connected to the hydrocyclone through the circulation pipeline. The primary heat exchanger is connected between the filter and the heating circulating water pipeline through the circulation pipeline. The heat pump unit is connected to the heating circulating water pipeline through the circulation pipeline. The secondary heat exchanger is connected between the primary heat exchanger, the heat pump unit and the reinjection well through the circulation pipeline. The cooling tower is connected to the heat pump unit through the circulation pipeline. The pump is respectively connected to multiple circulation pipelines.

[0012] Further, it further includes an anti-blocking component. The anti-blocking component includes an opening and a spring column. The opening is opened on the side of the drainage plate, and one end of the spring column is fixed on the lower surface of the drainage plate.

[0013] Further, the anti-blocking component further includes a movable plate and a special-shaped limiting plate. The movable plate is inserted into the opening, and the lower end of the special-shaped limiting plate is fixed on the upper end inside the sewage pipe.

[0014] Compared with the prior art, the advantages of the present utility model are as follows:

[0015] 1. For this utility model, through the arranged efficiency-enhancing component, when there is too much sand and gravel accumulated in the slag bucket, open the sewage pipe to discharge the sand and gravel. Then close the valve on the connecting pipe and open the valve on the sand washing pipe. The sand washing pipe is connected to an external water pipe. The first electric push rod and the second electric push rod rise. As the first electric push rod and the second electric push rod extend, they drive the connecting shaft to rotate within the fixed plate and the U-shaped groove, lift the drainage plate until the upper section of the slag bucket, and finally make the top end of the second electric push rod higher than that of the first electric push rod. At this time, the drainage plate is in an inclined state. Clean water flows into the sand washing pipe and then falls on the drainage plate. The water on the drainage plate flows towards the inner wall of the slag bucket for flushing. After the flushing is completed, lower the drainage plate, close the valve of the sand washing pipe, and open the valve of the connecting pipe. This setting can clean the sand and gravel in the slag bucket, ensure the subsequent storage capacity of the sand and gravel, and improve the sand removal efficiency.

[0016] 2. For this utility model, through the arranged anti-blocking component, when the drainage plate moves downward, the movable plate is restricted by the special-shaped limiting plate and moves inward along the opening to the inside below the drainage plate, compressing the spring column, which can expose the sewage discharge port. When the drainage plate rises, the movable plate is released from the restriction of the special-shaped limiting plate and is pushed out of the opening by the extended spring column, so that the lower part of the drainage plate is under the water flow flowing in from the sand washing pipe, which can ensure that more water flows onto the drainage plate. This setting can, on the one hand, ensure the water flow volume on the drainage plate, and on the other hand, avoid blocking the sewage discharge port. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of this utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of this utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

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

[0019] Figure 2 It is the external view schematic diagram of the cyclone sand remover of this utility model;

[0020] Figure 3 It is the structure schematic diagram when the drainage plate of this utility model rises;

[0021] Figure 4 It is the structure schematic diagram when the drainage plate of this utility model descends;

[0022] Figure 5 It is the partial structure schematic diagram of the anti-blocking component of this utility model;

[0023] Figure 6 It is the structure schematic diagram of the drainage plate of this utility model;

[0024] Figure 7 Schematic diagram of the special-shaped limiting plate structure of the present utility model.

[0025] In the attached drawings, the list of components represented by each label is as follows:

[0026] 10. Production well; 11. Recharge well; 12. Circulation pipeline; 13. Hydrocyclone; 130. Connecting pipe; 131. Slag hopper; 132. Sewage discharge pipe; 14. Filter; 15. Primary heat exchanger; 150. Secondary heat exchanger; 16. Heating circulating water pipeline; 17. Heat pump unit; 18. Cooling tower; 19. Pump; 20. Sand washing pipe; 21. Valve; 22. First electric push rod; 220. Second electric push rod; 23. Drainage plate; 24. Baffle plate; 25. Fixed plate; 26. U-shaped groove; 27. Connecting shaft; 30. Opening; 31. Spring column; 32. Movable plate; 33. Special-shaped limiting plate. Specific embodiments

[0027] In order to make the above objects, features, and advantages of the present utility model more obvious and understandable, the specific embodiments of the present utility model will be described in detail below with reference to the attached drawings.

[0028] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0029] In order to make the purpose, technical solution, and advantages of the present utility model clearer, the embodiments of the present utility model will be further described in detail below with reference to the attached drawings.

[0030] Please refer to Figures 1-5 As shown, this embodiment is a device for cascaded utilization of medium-deep geothermal water and heat pump in series, including:

[0031] Thermal energy utilization components, the thermal energy utilization components include a hydrocyclone 13, the hydrocyclone 13 includes a hydrocyclone tank, a connecting pipe 130, a slag hopper 131, and a sewage discharge pipe 132. The connecting pipe 130 is fixed in the middle of the lower end of the hydrocyclone tank, the slag hopper 131 is fixed at the lower end of the connecting pipe 130, and the sewage discharge pipe 132 is fixed at the lower end of the slag hopper 131;

[0032] The thermal energy utilization components further include a production well 10, a recharge well 11, and a circulation pipeline 12. The production well 10 and the recharge well 11 are connected to the hydrocyclone 13 through the circulation pipeline 12.

[0033] The heat energy utilization component further includes a filter 14, a primary heat exchanger 15, a secondary heat exchanger 150, a heating circulating water pipeline 16, a heat pump unit 17, a cooling tower 18 and a pump 19. The filter 14 is connected to the hydrocyclone 13 through a circulating pipeline 12. The primary heat exchanger 15 is connected between the filter 14 and the heating circulating water pipeline 16 through a circulating pipeline 12. The heat pump unit 17 is connected to the heating circulating water pipeline 16 through a circulating pipeline 12. The secondary heat exchanger 150 is connected between the primary heat exchanger 15, the heat pump unit 17 and the recharge well 11 through a circulating pipeline 12. The cooling tower 18 is connected to the heat pump unit 17 through a circulating pipeline 12. The pump 19 is respectively connected to multiple circulating pipelines 12;

[0034] The production well 10 is used to extract geothermal water from deep underground. The recharge well 11 is used to reinject the used water or treated water back into the ground to maintain the sustainability of underground water resources. The circulating pipeline 12 connects each main component to ensure the smooth circulation of water flow. The hydrocyclone 13 is used to remove sand grains or other suspended solids in the geothermal water to prevent wear and blockage of equipment such as pumps and heat exchangers. The connecting pipe 130 may be used to connect different devices or parts, such as between the pump and the hydrocyclone. The slag hopper 131 collects the sand grains separated by the hydrocyclone for regular emptying. The sewage pipe 132 discharges the sand grains and other impurities separated by the desander out of the system. The filter 14 further cleans the geothermal water to remove tiny suspended particles, ensuring the cleanliness and efficiency of the heat pump system. The primary heat exchanger 15 and the secondary heat exchanger 150 respectively carry out preliminary and further heat exchange processes to improve the utilization efficiency of heat energy. The heating circulating water pipeline 16 transports the water heated by the heat exchanger to the interior of the building for heating. The heat pump unit 17 uses a refrigerant to absorb the heat in the geothermal water and then releases this heat to the building through the heat pump working cycle. When the refrigerant is overheated during the operation of the heat pump unit 17, the cooling tower 18 is needed to dissipate heat to maintain its normal operating temperature. The pump 19 pushes the water flow through each part of the system, including functions such as pumping water, circulating and pressure regulation.

[0035] The efficiency enhancement component includes a sand washing pipe 20, a valve 21, a first electric push rod 22, a second electric push rod 220, a diversion plate 23, a fixing plate 25, a U-shaped groove 26 and a connecting shaft 27. The sand washing pipe 20 is fixed to the side of the connecting pipe 130. The valves 21 are respectively fixed to the side of the sand washing pipe 20 and the side of the connecting pipe 130, and the valve 21 on the connecting pipe 130 is located above the sand washing pipe 20. There are two groups of the first electric push rod 22 and the second electric push rod 220, which are embedded in the bottom surface of the slag hopper 131. The connecting shaft 27 is fixed to the tops of the first electric push rod 22 and the second electric push rod 220. The fixing plate 25 and the U-shaped groove 26 are fixed to the lower surface of the diversion plate 23, and the connecting shaft 27 is respectively rotatably connected to the fixing plate 25 and inside the U-shaped groove 26.

[0036] The efficiency enhancement component further includes a baffle 24 , which is welded to the outer circle of the lower surface of the guide plate 23 .

[0037] The sand washing pipe 20 is connected to the external water source pipeline, the valve 21 is used to open and close the connecting pipe 130 and the sand washing pipe 20, the first electric push rod 22 and the second electric push rod 220 can realize position change, the guide plate 23 plays a guiding role, the baffle 24 can prevent sand and gravel from entering under the guide plate 23, the fixed plate 25 plays a supporting role, the U-shaped groove 26 plays a connecting role, and the connecting shaft 27 plays a connecting role to facilitate the rotation of the guide plate 23.

[0038] Working principle:

[0039] When too much sand and gravel accumulate in the hopper 131, the drain pipe 132 is opened to discharge the sand and gravel, and then the valve 21 on the connecting pipe 130 is closed, and the valve 21 on the sand washing pipe 20 is opened. The sand washing pipe 20 is connected to the external water pipe, and the first electric push rod 22 and the second electric push rod 220 are raised. As the first electric push rod 22 and the second electric push rod 220 extend, the connecting shaft 27 is driven to rotate in the fixing plate 25 and the U-shaped groove 26, and the guide plate 23 is lifted to the upper part of the hopper 131, and finally the upper end of the second electric push rod 220 is higher than the first electric push rod 22. At this time, the guide plate 23 is in an inclined state, and clean water flows into the sand washing pipe 20 through the flow pipe, and then falls on the guide plate 23. The water on the guide plate 23 flows to the inner wall of the hopper 131 to flush it. After the flushing is completed, the guide plate 23 is lowered to make the baffle 24 fit the inner bottom surface of the hopper 131, the valve 21 of the sand washing pipe 20 is closed, and the valve 21 of the connecting pipe 130 is opened.

[0040] In this step, the gravel in the hopper 131 can be cleaned to ensure the capacity for subsequent storage of gravel and improve the sand removal efficiency.

[0041] See also Figures 5-7 This embodiment is based on the above embodiment and further includes:

[0042] The anti-blocking component includes an opening 30 and a spring column 31. The opening 30 is opened on the side of the guide plate 23, and one end of the spring column 31 is fixed to the lower surface of the guide plate 23;

[0043] The anti-blocking assembly further includes a movable plate 32 and a special-shaped limiting plate 33. The movable plate 32 is inserted into the opening 30, and the lower end of the special-shaped limiting plate 33 is fixed to the upper end of the inner side of the sewage pipe 132.

[0044] The opening 30 facilitates the movement of the movable plate 32 , the spring column 31 has a squeezing function, the movable plate 32 plays a supporting role, and the special-shaped limiting plate 33 plays a limiting role.

[0045] Working principle:

[0046] When the drainage plate 23 moves downward, the movable plate 32 is restricted by the special-shaped limiting plate 33 and moves inward below the drainage plate 23 along the opening 30, compressing the spring column 31, so that the opening of the sewage discharge pipe 132 can be exposed. When the drainage plate 23 rises, the movable plate 32 is released from the restriction of the special-shaped limiting plate 33 and is pushed out of the opening 30 by the extended spring column 31, so that the lower part of the drainage plate 23 is below the water flow flowing in from the sand washing pipe 20, ensuring that more water can flow onto the drainage plate 23.

[0047] This step can, on the one hand, ensure the flow rate of water on the drainage plate 23, and on the other hand, avoid blocking the opening of the sewage discharge pipe 132.

[0048] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0049] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A device for cascaded utilization of medium-deep geothermal water in series with a heat pump, characterized in that Including: A heat energy utilization component, the heat energy utilization component includes a cyclone desander (13), the cyclone desander (13) includes a cyclone tank, a connecting pipe (130), a slag hopper (131) and a sewage discharge pipe (132), the connecting pipe (130) is fixed in the middle of the lower end of the cyclone tank, the slag hopper (131) is fixed at the lower end of the connecting pipe (130), and the sewage discharge pipe (132) is fixed at the lower end of the slag hopper (131); An efficiency enhancement component, the efficiency enhancement component includes a sand washing pipe (20), a valve (21), a first electric push rod (22), a second electric push rod (220), a diversion plate (23), a fixing plate (25), a U-shaped groove (26) and a connecting shaft (27), the sand washing pipe (20) is fixed on the side of the connecting pipe (130), the valves (21) are respectively fixed on the side of the sand washing pipe (20) and the side of the connecting pipe (130), and the valve (21) on the connecting pipe (130) is located above the sand washing pipe (20). There are two groups of the first electric push rod (22) and the second electric push rod (220), which are embedded in the lower bottom surface of the slag hopper (131). The connecting shaft (27) is fixed on the tops of the first electric push rod (22) and the second electric push rod (220). The fixing plate (25) and the U-shaped groove (26) are fixed on the lower surface of the diversion plate (23), and the connecting shaft (27) is respectively rotatably connected to the fixing plate (25) and inside the U-shaped groove (26).

2. The cascade utilization device for medium-deep geothermal water and heat pump in series according to claim 1, characterized in that, The efficiency enhancement component further includes a baffle plate (24), and the baffle plate (24) is welded on the outer ring of the lower surface of the diversion plate (23).

3. A medium-deep geothermal water and heat pump series cascade utilization device according to claim 1, characterized in that, The heat energy utilization component further includes a production well (10), a reinjection well (11) and a circulation pipeline (12), and the production well (10) and the reinjection well (11) are connected to the cyclone desander (13) through the circulation pipeline (12).

4. A medium-deep geothermal water and heat pump series cascade utilization device according to claim 3, characterized in that, The heat energy utilization component further includes a filter (14), a primary heat exchanger (15), a secondary heat exchanger (150), a heating circulating water pipeline (16), a heat pump unit (17), a cooling tower (18) and a pump (19). The filter (14) is connected to the cyclone desander (13) through the circulation pipeline (12). The primary heat exchanger (15) is connected between the filter (14) and the heating circulating water pipeline (16) through the circulation pipeline (12). The heat pump unit (17) is connected to the heating circulating water pipeline (16) through the circulation pipeline (12). The secondary heat exchanger (150) is connected between the primary heat exchanger (15), the heat pump unit (17) and the reinjection well (11) through the circulation pipeline (12). The cooling tower (18) is connected to the heat pump unit (17) through the circulation pipeline (12). The pump (19) is respectively connected to multiple circulation pipelines (12).

5. A medium-deep geothermal water and heat pump series cascade utilization device according to claim 1, characterized in that, It further includes an anti-blocking component, the anti-blocking component includes an opening (30) and a spring column (31), the opening (30) is opened on the side of the diversion plate (23), and one end of the spring column (31) is fixed on the lower surface of the diversion plate (23).

6. A medium-deep geothermal water and heat pump series cascade utilization device according to claim 5, characterized in that, The anti-blocking component further includes a movable plate (32) and a special-shaped limiting plate (33), the movable plate (32) is inserted into the opening (30), and the lower end of the special-shaped limiting plate (33) is fixed on the inner upper end of the sewage discharge pipe (132).

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