Boiler waste heat recovery device based on geothermal water source heat pump

Abstract

The utility model relates to the technical field of waste heat recovery, in particular to a boiler waste heat recovery device based on a geothermal water source heat pump, which comprises two flue gas pipes, a heat exchange coil pipe is communicated between the two flue gas pipes, a heat exchange mechanism for high-temperature flue gas waste heat recovery is arranged on the flue gas pipes, and the heat exchange mechanism comprises a heat exchange bottom box. According to the boiler waste heat recovery device based on the geothermal water source heat pump, through cooperation of the flue gas pipes and the heat exchange coil pipe, the heat dissipation efficiency of high-temperature flue gas can be improved conveniently, the heat dissipation efficiency of the high-temperature flue gas can be improved, and the heat dissipation efficiency of the high-temperature flue gas can be improved; waste heat in high-temperature flue gas can be conveniently recycled through heat conduction through the heat exchange mechanism, the heat exchange bottom box can be conveniently sealed through the sealing mechanism, the device is easy to operate when used, heat in the high-temperature flue gas can be recycled, and heat loss and waste are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of waste heat recovery, in particular to a boiler waste heat recovery device based on a groundwater source heat pump. Background Art

[0002] A groundwater source heat pump is a new energy utilization technology that uses shallow geothermal energy for heating and cooling. It is a type of heat pump, and heat pumps are usually used for air conditioning, cooling, or heating. Groundwater heat pumps also utilize the huge heat and cold storage capacity of the underground soil. When the groundwater source heat pump is working, it extracts hot water from the ground and pumps it into the boiler to heat the groundwater source through combustion. The groundwater source, which has its own temperature, is heated to a suitable temperature and then output to the required location. However, the boiler will generate a large amount of high-temperature flue gas during combustion and heating. The high-temperature flue gas is discharged into the external environment. The waste heat in the high-temperature flue gas cannot be recovered, which will cause a large waste. To address the above problems, this application designs a boiler waste heat recovery device based on a groundwater source heat pump. Utility Model Content

[0003] (1) Technical problems solved

[0004] In view of the deficiencies in the prior art, the utility model provides a boiler waste heat recovery device based on a groundwater source heat pump.

[0005] (2) Technical solution

[0006] The smoke generating device further comprises a pair of heat-sensing panels, wherein the heat shield is located adjacent to the heat shield housing, the heat shield being located adjacent to the heat shield housing, and the heat shield being located adjacent to the heat shield housing.

[0007] In order to seal the heat exchange bottom box, the utility model has been improved in that the sealing mechanism includes a first motor, which is installed at the bottom end of the heat exchange bottom box, and the output end of the first motor is fixedly connected to a bidirectional threaded rod, and two moving blocks are threadedly connected to the bidirectional threaded rod, and two pull rods are rotatably connected to the moving block, and the other ends of the two pull rods located on the same side are rotatably connected to a sealing strip, and the two sealing strips are slidably connected to the heat exchange bottom box.

[0008] In order to guide the condensed water condensed during heat exchange out of the heat exchange bottom box, the utility model is improved in that a triangular guide slope is fixedly connected to the heat exchange bottom box.

[0009] In order to improve the sealing between the heat exchange bottom box and the heat exchange top box, the utility model is improved in that two sealing rubber rings are fixedly connected to the top end of the heat exchange bottom box.

[0010] In order to prevent heat from leaking from the gaps in the flue gas pipe, the present invention has an improvement in that two sealing contact plates are fixedly connected to the bottom end of the heat exchange top box.

[0011] In order to prevent condensed water from contacting the heat exchange bottom box and the heat exchange top box and causing corrosion, the utility model has an improvement in that a protective coating is provided on the inner walls of the heat exchange bottom box and the heat exchange top box.

[0012] (3) Beneficial effects

[0013] Compared with the existing technology, the utility model provides a boiler waste heat recovery device based on a groundwater source heat pump, which has the following beneficial effects:

[0014] This boiler waste heat recovery device based on a groundwater source heat pump can improve the heat dissipation efficiency of high-temperature flue gas through the cooperation of the flue gas pipe and the heat exchange coil. The heat exchange mechanism can recover the waste heat in the high-temperature flue gas through heat conduction. The sealing mechanism can seal the heat exchange bottom box. The device is relatively simple to operate during use and can recover the heat in the high-temperature flue gas to avoid heat loss and waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the first main structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the first partial structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the second partial structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the third partial structure of the utility model.

[0019] In the figure: 1. Flue gas pipe; 2. Heat exchange coil; 3. Heat exchange bottom box; 4. Cylinder; 5. Lifting bar; 6. Heat exchange top box; 7. Heat absorption chamber; 8. Water pipe; 9. First motor; 10. Bidirectional threaded rod; 11. Moving block; 12. Pull rod; 13. Sealing strip; 14. Triangular guide ramp; 15. Sealing rubber ring; 16. Sealing contact plate. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-4 The heat dissipation device of the present invention is a heat dissipation device for a boiler having a heat dissipation of about 1 / 2 meter, and a heat dissipation tube 2 is connected to the heat dissipation tube 3 by the heat dissipation device 2. The heat dissipation device of the boiler has two heat dissipation tubes, and the heat dissipation tube 3 has a heat dissipation tube 2 connected to the heat dissipation tube 3.

[0022] The sealing mechanism includes a first motor 9, which is installed at the bottom end of the heat exchange bottom box 3. The output end of the first motor 9 is fixedly connected to a bidirectional threaded rod 10, and two moving blocks 11 are threadedly connected to the bidirectional threaded rod 10. Two pull rods 12 are rotatably connected to the moving block 11. The other ends of the two pull rods 12 located on the same side are rotatably connected to a sealing strip 13. The two sealing strips 13 are slidingly connected to the heat exchange bottom box 3. A triangular guide slope 14 is fixedly connected inside the heat exchange bottom box 3, and two sealing rubber rings 15 are fixedly connected to the top of the heat exchange bottom box 3.

[0023] When the device is in use, the local water source heat pump draws out the groundwater and pumps it into the boiler for combustion and heating. The high-temperature flue gas generated by the combustion flows into the heat exchange coil 2 along the flue pipe 1, and the first motor 9 is started to drive the two-way threaded rod 10 to rotate. The moving block 11 threadedly connected to the two-way threaded rod 10 moves to both sides, and the moving block 11 drives the pull rod 12. The pull rod 12 pushes the sealing strip 13 to both sides. The sealing strip 13 seals the water outlet, and the water source flows into the heat absorption chamber 7 through the water pipe 8. The high-temperature flue gas in the heat exchange coil 2 dissipates, and the water source absorbs the heat through the heat absorption chamber 7. The heated water flows out through another water pipe 8, and the flue gas after heat dissipation flows out through another flue pipe 1. When the waste After heat recovery is completed, the heat exchange bottom box 3 and the heat exchange top box 6 are heated. The temperature difference between the outside and the inside will cause a large amount of condensed water to adhere to the inner wall. The cylinder 4 is started, and the output end of the cylinder 4 extends upward to push the lifting bar 5. The lifting bar 5 drives the heat exchange top box 6 to move upward. The heat exchange top box 6 drives the heat absorption bin 7 and the water pipe 8 to move upward. The external cold air enters the interior. The condensed water on the inner wall will condense into small water droplets and flow down. The small water droplets flow onto the triangular guide slope 14. The first motor 9 is started in the reverse direction to drive the bidirectional threaded rod 10 to rotate. The moving block 11 moves toward the middle. The moving block 11 pulls the pull rod 12. The pull rod 12 pulls the sealing strip 13. The condensed water leaks out of the water outlet and can flow out of the heat exchange bottom box 3.

[0024] When using this device, it was found that the heat dissipated by the high-temperature flue gas would leak out from the gap in the flue pipe 1. In order to improve the sealing between the heat exchange bottom box 3 and the heat exchange top box 6, in this embodiment, two sealing contact plates 16 are fixedly connected to the bottom end of the heat exchange top box 6.

[0025] When using this device, it is found that condensed water will directly contact the inner walls of the heat exchange bottom box 3 and the heat exchange top box 6. In order to avoid corrosion caused by long-term contact, in this embodiment, a protective coating is provided on the inner walls of the heat exchange bottom box 3 and the heat exchange top box 6.

[0026] In order to explain in detail the possible application scenarios, technical principles, specific solutions that can be implemented, and the purpose and effects of this application, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of this application and are therefore only examples and are not intended to limit the scope of protection of this application.

[0027] References to "embodiments" herein mean that the specific features, structures, or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the word "embodiment" in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or relevance to other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the various technical features mentioned in the embodiments can be combined in any manner to form a corresponding implementable technical solution.

[0028] Unless otherwise defined, the technical terms used herein have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms herein is only for describing specific embodiments and is not intended to limit this application.

[0029] 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 boiler waste heat recovery device based on a groundwater source heat pump, comprising two flue gas pipes (1), characterized in that: A heat exchange coil (2) is connected between the two flue gas pipes (1). A heat exchange mechanism for recovering waste heat from high-temperature flue gas is provided on the flue gas pipes (1). The heat exchange mechanism comprises a heat exchange bottom box (3). The heat exchange bottom box (3) is fixedly connected to the two flue gas pipes (1). A plurality of cylinders (4) are installed at the front and rear ends of the heat exchange bottom box (3). The top output ends of the plurality of cylinders (4) located on the same side are fixedly connected to a lifting bar (5). A heat exchange top box (6) is fixedly connected between the two lifting bars (5). A heat absorption bin (7) is fixedly connected inside the heat exchange top box (6). The left and right ends of the heat absorption bin (7) are connected to water pipes (8). The water pipes (8) pass through the heat exchange top box (6) and extend to the outside. A plurality of water outlets are provided at the bottom end of the heat exchange bottom box (3). A sealing mechanism for sealing the heat exchange bottom box (3) is provided at the bottom end of the heat exchange bottom box (3).

2. A boiler waste heat recovery device based on a groundwater source heat pump according to claim 1, characterized in that: The sealing mechanism includes a first motor (9), which is installed at the bottom end of the heat exchange bottom box (3). The output end of the first motor (9) is fixedly connected to a bidirectional threaded rod (10), and two moving blocks (11) are threadedly connected to the bidirectional threaded rod (10). The moving blocks (11) are rotatably connected to two pull rods (12). The other ends of the two pull rods (12) located on the same side are rotatably connected to a sealing strip (13), and the two sealing strips (13) are slidably connected to the heat exchange bottom box (3).

3. The boiler waste heat recovery device based on a groundwater source heat pump according to claim 2, characterized in that: A triangular guide ramp (14) is fixedly connected inside the heat exchange bottom box (3).

4. The boiler waste heat recovery device based on a groundwater source heat pump according to claim 3, characterized in that: Two sealing rubber rings (15) are fixedly connected to the top of the heat exchange bottom box (3).

5. The boiler waste heat recovery device based on a groundwater source heat pump according to claim 4, characterized in that: Two sealing contact plates (16) are fixedly connected to the bottom end of the heat exchange top box (6).

6. The boiler waste heat recovery device based on a groundwater source heat pump according to claim 5, characterized in that: The inner walls of the heat exchange bottom box (3) and the heat exchange top box (6) are both provided with a protective coating.

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