A heat pump device utilizing waste heat from circulating water plus lithium bromide

Abstract

This utility model relates to the field of lithium bromide solution technology and discloses a lithium bromide heat pump device utilizing waste heat from circulating water. The device includes a tank body and a lid on top of the tank body. A partition is fixed to the inner wall of the tank body, and three filter elements are installed inside the partition. A disassembly assembly is located inside the partition, including a mounting plate fixed to the inner wall of the partition. The mounting plate has three threaded holes on its inner wall, and the filter elements have external threads on their outer sides. This utility model uses a lithium bromide absorption heat pump to externally connect to a filter tank for processing lithium bromide solution. The three filter elements installed inside the filter tank allow for filtration of the used lithium solution, effectively adsorbing impurities and enabling the lithium solution to be recycled. The filter tank has a flange-connected, detachable structure, consisting of a tank body and a lid. The disassembly assembly facilitates timely replacement of the filter elements installed inside the tank, making operation simple and convenient.

Description

Technical Field

[0001] This utility model relates to the field of lithium bromide solution technology, specifically to a lithium bromide heat pump device that utilizes waste heat from circulating water. Background Technology

[0002] Lithium bromide heat pumps using waste heat from circulating water are a highly efficient technology for utilizing waste heat from industrial circulating water. Through a lithium bromide absorption heat pump system, low-grade waste heat from the circulating water is converted into high-grade heat energy for heating, hot water supply, and other applications. This technology not only improves energy efficiency but also reduces energy consumption and environmental pollution. In industrial production processes, circulating water is typically used to cool equipment, absorbing the heat generated. Even after passing through a cooling tower, this circulating water still contains a significant amount of low-grade heat energy. Lithium bromide absorption heat pump systems utilize this low-grade waste heat from the circulating water as a driving heat source, achieving cooling or heating by absorbing and releasing water vapor.

[0003] Because the main structure of a lithium bromide absorption heat pump is made of metal, and the lithium bromide solution itself is corrosive to metals, various impurities, such as iron filings, copper filings, and compounds, will be introduced into the solution during circulation within the heat pump's internal cavity, causing the solution to become cloudy. When there are many impurities in the lithium bromide solution, the absorption efficiency of the lithium bromide absorption heat pump may decrease. To solve this problem, some existing heat pumps use external filtration equipment to filter the lithium bromide solution through a filter element, allowing the lithium bromide solution to be recycled. However, since the filter element has a limited lifespan, if it cannot be replaced in time, it will affect the filtration of the lithium bromide solution, thus impacting the operation of the heat pump. Utility Model Content

[0004] The purpose of this invention is to provide a lithium bromide heat pump device that utilizes waste heat from circulating water to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a device for utilizing waste heat from circulating water with a lithium bromide heat pump, comprising a tank body, and further comprising:

[0006] A lid is installed on the top of the barrel body, and a partition is fixed to the inner wall of the barrel body. Three filter elements for treating lithium bromide solution are installed inside the partition.

[0007] A disassembly assembly is installed inside the partition to facilitate the replacement of the filter element. The disassembly assembly includes a mounting plate fixed to the inner wall of the partition. The inner wall of the mounting plate has three threaded holes that match the filter element. The outer side of the filter element is provided with external threads. The filter element is threaded to the threaded holes through the external threads. The top outer side of the filter element is provided with anti-slip protrusions to facilitate user operation.

[0008] Preferably, the top of the barrel body and the bottom of the barrel lid are both fixed with flanges, and the inner wall of the flanges is provided with connection holes.

[0009] Preferably, the inner wall of the connecting hole is threaded with a bolt, and the outer side of the bolt is threaded with a nut.

[0010] Preferably, the inner wall of the flange is provided with a placement groove, and a sealing ring is provided on the inner wall of the placement groove, the size of which is adapted to the inner diameter of the placement groove.

[0011] Preferably, the inner wall of the barrel is connected to an inlet pipe, and the bottom of the barrel is connected to a drain pipe. Both the inlet pipe and the drain pipe are equipped with butterfly valves on their inner walls.

[0012] Preferably, three support legs arranged in a circular array are fixed to the outside of the barrel, and wear-resistant pads are fixed to the bottom of the support legs.

[0013] Preferably, the inner wall of the bucket lid is connected to a vacuum tube, a drain tube, and a pressure detection tube, and the inner walls of the vacuum tube, the drain tube, and the pressure detection tube are all equipped with valves.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention relates to a filter tank for processing lithium bromide solution via an external lithium bromide absorption heat pump. Three filter elements are installed inside the filter to filter the used lithium solution, effectively adsorbing impurities and allowing the lithium solution to be recycled. The filter tank has a flange-connected, detachable structure consisting of a tank body and a lid. The detachable components allow for easy and timely replacement of the filter elements inside the tank, making operation simple and convenient. Attached Figure Description

[0016] Figure 1 A schematic diagram of a preferred embodiment of the lithium bromide heat pump device utilizing waste heat from circulating water provided by this utility model;

[0017] Figure 2 A schematic diagram of the connection between the barrel body and the barrel lid provided by this utility model;

[0018] Figure 3 A schematic diagram of the internal structure of the barrel body and barrel lid provided by this utility model;

[0019] Figure 4 A schematic diagram of the disassembly assembly provided by this utility model.

[0020] In the diagram: 1. Barrel body; 2. Barrel lid; 3. Partition plate; 4. Filter element; 5. Disassembly assembly; 51. Mounting plate; 52. Threaded hole; 53. External thread; 54. Anti-slip protrusion; 6. Flange; 7. Connection hole; 8. Bolt; 9. Nut; 10. Placement slot; 11. Sealing ring; 12. Inlet pipe; 13. Drain pipe; 14. Butterfly valve; 15. Support leg; 16. Wear-resistant pad; 17. Vacuum pipe; 18. Drain pipe; 19. Pressure detection pipe. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 As shown, a lithium bromide heat pump device utilizing waste heat from circulating water includes a tank body 1 and a lid 2 disposed on the top of the tank body 1. A partition 3 is fixed to the inner wall of the tank body 1, and three filter elements 4 for treating the lithium bromide solution are disposed inside the partition 3. Both the tank body 1 and the lid 2 are made of stainless steel. Three filter elements 4 can be installed by fixing the partition 3 inside the tank body 1. The lithium bromide solution filter elements 4 are used to filter impurities in the lithium bromide solution to ensure the purity of the solution and the normal operation of the system. In the lithium bromide absorption heat pump system, the role of the filter element 4 is particularly important because the purity of the lithium bromide solution directly affects the operating efficiency and service life of the heat pump.

[0023] A disassembly assembly 5, located inside the partition 3, facilitates the replacement of the filter element 4. This assembly allows for the replacement of the filter element 4, which has been used for a long time within the container 1. The disassembly assembly 5 includes a mounting plate 51 fixed to the inner wall of the partition 3. The inner wall of the mounting plate 51 has three threaded holes 52 that match the filter element 4. The outer side of the filter element 4 has external threads 53, which connect it to the threaded holes 52. The top outer side of the filter element 4 has anti-slip protrusions 54 for easy user operation. By fixing the mounting plate 51 to the inner wall of the partition 3, the three... The filter elements 4 are respectively installed on the partition plate 3. Since the mounting plate 51 has three threaded holes 52, and each filter element 4 has an external thread 53 on its outer side, when the filter element 4 is inserted into the threaded hole 52, rotating the filter element 4 can fix the filter element 4 to the mounting plate 51 through the external thread 53 and the threaded hole 52. When the filter element 4 is rotated in the opposite direction, it is easy to disassemble the filter element 4. By providing anti-slip protrusions 54 on the outer side of the top of the filter element 4, it is easy for the user to prevent the fingers from slipping when installing or disassembling the filter element 4 by pinching it with their fingers, thereby improving the stability of the filter element 4 during installation or disassembly.

[0024] Flanges 6 are fixed to the top of the barrel body 1 and the bottom of the barrel lid 2. Connecting holes 7 are provided on the inner wall of the flanges 6. Bolts 8 are threaded into the inner wall of the connecting holes 7, and nuts 9 are threaded into the outer wall of the bolts 8. Fixing flanges 6 to the top of the barrel body 1 and the bottom of the barrel lid 2 facilitates assembly and disassembly of the barrel body 1 and barrel lid 2. Bolts 8 can be installed through the connecting holes 7 on the inner wall of the flanges 6. Inserting bolts 8 into the connecting holes 7 connects the barrel lid 2 to the barrel body 1. Nuts 9 allow for further tightening of the connected barrel lid 2 and barrel body 1. To ensure stability and prevent loosening, the flange 6 has an inner wall with a placement groove 10. A sealing ring 11 is installed on the inner wall of the placement groove 10, and its size matches the inner diameter of the groove. The placement groove 10 allows the sealing ring 11 to be placed inside the flange 6, improving the sealing effect and preventing lithium bromide solution leakage after the lid 2 and body 1 are assembled. An inlet pipe 12 connects to the inner wall of the body 1, and a drain pipe 13 connects to the bottom of the body 1. Both the inlet pipe 12 and the drain pipe 13 are equipped with butterfly valves 14. The inlet pipe 12 facilitates the entry of used lithium bromide solution containing impurities into the tank 1, while the drain pipe 13 facilitates the discharge of waste liquid from the tank 1. Butterfly valves 14 installed on the inner walls of the inlet pipe 12 and the drain pipe 13 control their operation. Three support legs 15 arranged in a circular array are fixed to the outside of the tank 1. Wear-resistant pads 16 are fixed to the bottom of each support leg 15. The support legs 15 provide support and fixation to the tank 1, improving its operational stability. The wear-resistant pads 16 are made of rubber and are fixed in place. The support leg 15 is fixed at the bottom to prevent it from sliding, thereby improving its stability. The inner wall of the lid 2 is connected to a vacuum tube 17, a drain tube 18, and a pressure detection tube 19. Valves are installed on the inner walls of the vacuum tube 17, the drain tube 18, and the pressure detection tube 19. The vacuum tube 17 is connected to a vacuum pump, which can evacuate the inside of the barrel 1. The drain tube 18 can discharge the filtered lithium bromide solution back to the heat pump for recycling. The pressure detection tube 19 is connected to a pressure gauge to check the pressure value inside the barrel 1.

[0025] Working principle: Before use, connect one end of a transparent plastic hose to the outlet valve of the lithium bromide heat pump and the other end to the inlet pipe 12 of the tank 1. Connect the vacuum pipe 17 to the vacuum pump. Then, use the vacuum pump to evacuate the tank 1. When the pressure inside the tank 1 is negative, open the valves at the inlet pipe 12 and the outlet pipe 18. The contaminated lithium bromide solution inside the lithium bromide heat pump enters the tank 1 through the inlet pipe 12. Under negative pressure, the solution in the tank 1 is filtered through the filter element 4 and enters the tank lid 2. The filtered lithium bromide solution is then discharged through the outlet pipe 18. The filtered lithium bromide solution is then further processed by the lithium bromide heat pump. The pump inlet valve enters the internal cavity for circulation. When the observed pressure is positive, repeat the vacuuming operation to clean the lithium bromide solution until the lithium bromide solution changes from cloudy to clear and transparent. When the filter element 4 needs to be replaced after long-term use, the bolt 8 can be loosened to separate the bucket cover 2 from the bucket body 1. Then, the user can wear protective gloves and pinch the anti-slip protrusion 54 with their fingers to rotate the filter element 4 and remove the filter element 4 from the mounting plate 51. When replacing the new filter element 4, put the filter element 4 into the threaded hole 52 and rotate the filter element 4 to fix the filter element 4 to the mounting plate 51 through the external thread 53 and the threaded hole 52.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0027] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heat pump device utilizing waste heat from circulating water and lithium bromide, comprising a tank (1), characterized in that, Also includes: A lid (2) is provided on the top of the barrel (1), and a partition (3) is fixed on the inner wall of the barrel (1). Three filter elements (4) for treating lithium bromide solution are provided inside the partition (3). A disassembly assembly (5) is provided inside the partition (3) to facilitate the replacement of the filter element (4). The disassembly assembly (5) includes a mounting plate (51) fixed to the inner wall of the partition (3). The inner wall of the mounting plate (51) is provided with three threaded holes (52) that match the filter element (4). The outer side of the filter element (4) is provided with external threads (53). The filter element (4) is threadedly connected to the threaded holes (52) through the external threads (53). The outer side of the top of the filter element (4) is provided with anti-slip protrusions (54) to facilitate user operation.

2. The device for utilizing waste heat from circulating water and a lithium bromide heat pump according to claim 1, characterized in that: The top of the barrel body (1) and the bottom of the barrel lid (2) are both fixed with flanges (6), and the inner wall of the flanges (6) is provided with connection holes (7).

3. The device for utilizing waste heat from circulating water and a lithium bromide heat pump according to claim 2, characterized in that: The inner wall of the connecting hole (7) is threaded with a bolt (8), and the outer side of the bolt (8) is threaded with a nut (9).

4. The device for utilizing waste heat from circulating water and a lithium bromide heat pump according to claim 2, characterized in that: The flange (6) has a placement groove (10) on its inner wall, and a sealing ring (11) is provided on the inner wall of the placement groove (10). The size of the sealing ring (11) is adapted to the inner diameter of the placement groove (10).

5. The device for utilizing waste heat from circulating water and a lithium bromide heat pump according to claim 1, characterized in that: The inner wall of the barrel (1) is connected to an inlet pipe (12), and the bottom of the barrel (1) is connected to a drain pipe (13). Both the inlet pipe (12) and the drain pipe (13) are equipped with butterfly valves (14).

6. The device for utilizing waste heat from circulating water and a lithium bromide heat pump according to claim 1, characterized in that: Three support legs (15) arranged in a circular array are fixed on the outside of the barrel (1), and wear-resistant pads (16) are fixed on the bottom of the support legs (15).

7. The device for utilizing waste heat from circulating water and a lithium bromide heat pump according to claim 1, characterized in that: The inner wall of the bucket lid (2) is connected to a vacuum tube (17), a drain tube (18) and a pressure detection tube (19), and valves are provided on the inner walls of the vacuum tube (17), the drain tube (18) and the pressure detection tube (19).

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