Total heat recovery vacuum type lithium bromide solution content increasing device

Abstract

The invention relates to the technical field of lithium bromide solutions, and discloses a total heat recovery vacuum type lithium bromide solution content increasing device which comprises an expansion water tank, a flash tank, a water source heat pump, a condenser, an air source, a plate heat exchanger, a condensate water tank and a vacuum pump and further comprises a flash pressure gauge arranged on one side of the top of the flash tank. The tops of the two sides of the flash box are fixedly connected with connecting shells. The water source heat pump produces hot water to provide heat input for the flash tank, continuous circulation is achieved, water vapor generated through boiling is condensed in the heat exchanger, condensation heat is absorbed by circulating water and circulated to the water source heat pump side to serve as a supply heat source, the energy efficiency ratio of the water source heat pump is increased to the maximum extent, and the water source heat pump can achieve high energy efficiency ratio output in winter. The problems of energy efficiency ratio of the water source heat pump and heat dissipation of a cooling tower are solved. When the pull rod moves, the clamping block is driven to extrude the first spring, then the clamping block is separated from the insertion block, and the blocking shell can be taken out for maintenance.

Description

Technical Field

[0001] The invention relates to the technical field of lithium bromide solutions, in particular to a full heat recovery vacuum type lithium bromide solution content increasing device. Background Art

[0002] The full heat recovery vacuum lithium bromide solution content increasing device is a device used in lithium bromide absorption refrigeration units. In the absorption refrigeration unit, lithium bromide solution plays the role of absorbing water vapor to achieve the refrigeration process. The function of this device is to increase the concentration of lithium bromide solution, thereby increasing the solution's ability to absorb water vapor. It processes the lithium bromide solution in the refrigeration system through full heat recovery and vacuum evaporation to increase its concentration.

[0003] At present, the content of lithium bromide solution is generally increased by heating the reactor to above 130 degrees at room temperature and pressure with electric heating or steam heating, and the evaporated water vapor is naturally discharged into the atmosphere. However, due to the high heating temperature, only resistance heating or steam can be used, which not only wastes energy, but also has the problem of cooling the heated solution after completion. Cooling water is used to dissipate heat through a cooling tower, and the evaporation of the cooling tower consumes a lot of water resources. Due to the high heating temperature, the water vapor generated by the boiling of the solution is naturally discharged, and the discharged water vapor will evaporate in the atmosphere, which may cause the local air humidity to increase and have a certain impact on the surrounding environment. In some cases, this may cause local haze or affect the surrounding temperature and humidity;

[0004] Moreover, the baffles and plugs of the flash evaporator in the lifting device are designed to better realize the heat exchange and evaporation process of the lithium bromide solution. However, in order to avoid accidental movement or damage during the operation of the equipment, some baffles and plugs are usually designed to be unable to be disassembled or to be cumbersome to disassemble. If the baffles and plugs cannot be disassembled, cleaning and maintenance will become very difficult. The accumulated dirt and sediment may affect the heat exchange efficiency and reduce the performance of the equipment. Once a failure occurs or maintenance is required, it will increase the difficulty of maintenance and troubleshooting, and may require longer downtime. Summary of the invention

[0005] The purpose of the present invention is to provide a full heat recovery vacuum lithium bromide solution content increasing device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a full heat recovery vacuum lithium bromide solution content increasing device, comprising an expansion water tank, a flash tank, a water source heat pump, a condenser, an air source, a plate heat exchanger, a condensate tank and a vacuum pump, and also comprising:

[0007] A flash pressure device is arranged on one side of the top of the flash box, the tops of both sides of the flash box are fixedly connected with a connecting shell, the top of the inner cavity of the flash box is provided with a retaining shell, the front side of the retaining shell is fixedly connected with a first handle, both sides of the front side of the retaining shell are fixedly connected with plug blocks, the inner cavity of the connecting shell is fixedly connected with a mounting assembly used for matching the plug block, and the mounting assembly includes a first spring;

[0008] An insert plate is arranged in the inner cavity of the flash box, and the number of the insert plates is three. A second handle is fixedly connected to the front side of the insert plate, and both sides of the flash box are fixedly connected to a limit shell, and both sides of the front side of the insert plate are fixedly connected to an L-shaped plate. The inner cavity of the limit shell is provided with a limit assembly used in conjunction with the L-shaped plate, and the limit assembly includes a movable plate and a guide plate. Support plates are provided on both sides of the stop shell and the bottom of the insert plate, and the front and rear sides of the support plate are fixedly connected to the inner wall of the flash box.

[0009] Preferably, baffles are provided on the top and bottom of the inner cavity of the baffle shell, and the baffles are in the shape of shutters.

[0010] Preferably, a leakage hole is provided on the top of the plug plate, and the leakage hole is in the shape of a small conical cone.

[0011] Preferably, the top of the first spring is fixedly connected to the inner wall of the connecting shell, the bottom of the first spring is fixedly connected to a clamping block, the top of the clamping block is fixedly connected to a pull rod, and the top of the pull rod passes through the outside of the connecting shell and is fixedly connected to a pull plate.

[0012] Preferably, a second spring is fixedly connected to one side of the inner cavity of the connecting shell, and a movable plate is fixedly connected to one side of the second spring.

[0013] Preferably, both front and rear sides of one side of the movable plate are fixedly connected with limiting rods, and the limiting rods extend through the side away from the inserting block to the outside of the connecting shell.

[0014] Preferably, the movable plate is arranged on the rear side of the inner cavity of the limiting shell, the guide plate is arranged on the front side of the inner cavity of the limiting shell, a screw is arranged on the rear side of the movable plate, the rear side of the screw passes through to the outside of the limiting shell and is fixedly connected with a torsion block, and guide wheels are arranged on the top and bottom of the front side of the movable plate.

[0015] Preferably, one side of the guide plate is fixedly connected to a connecting rod, the opposite sides of the two connecting rods are fixedly connected to extension plates, the opposite sides of the two extension plates are fixedly connected to insertion rods, the surface of the insertion rod is plugged into the inner cavity of the L-shaped plate, and the opposite sides of the two guide plates are fixedly connected to a third spring for reset.

[0016] Preferably, both sides of the guide plate are fixedly connected with sliding blocks, and both sides of the inner cavity of the limiting shell are provided with sliding grooves for matching with the sliding blocks.

[0017] Preferably, the top and the bottom of the rear side of the movable plate are fixedly connected with a retaining rod, and the rear side of the retaining rod penetrates to the outside of the limiting shell.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention is composed of an expansion water tank, a flash tank, a water source heat pump, a condenser, an air source, a plate heat exchanger, a condensate tank and a vacuum pump, and auxiliary valves, pipelines, instruments and a shielded pump are used between them. The flash water of lithium bromide aqueous solution has a low boiling point under vacuum, and the condensation heat of water vapor evaporated from the aqueous solution in the flash tank is provided to the water source heat pump for absorption as its input heat. The water source heat pump produces 60-80 degree hot water to provide heat input for the flash tank, which is continuously circulated, and the water vapor generated by boiling is condensed in the heat exchanger. The condensation heat is absorbed by the circulating water and circulated to the water source heat pump side as a supply heat source, thereby maximizing the energy efficiency ratio of the water source heat pump, allowing the water source heat pump to have a high energy efficiency ratio output in winter, solving the two problems of the energy efficiency ratio of the water source heat pump and the need for cooling tower heat dissipation, and there is no heat waste in the whole process, thereby saving electric energy and energy-saving water sources;

[0020] 2. When the user needs to disassemble the baffle shell for maintenance of the baffle plate, the present invention can pull the pull plate to drive the pull rod to move. When the pull rod moves, it will drive the card block to squeeze the first spring. Then the card block will be separated from the plug block and the baffle shell can be taken out for maintenance. If multiple plug plates need to be disassembled and maintained, the twist block is twisted to make the screw rotate in the limit shell. At this time, the moving plate will drive the guide wheel to press the inclined surface of the guide plate. At this time, the guide plate will stretch the third spring and make the connecting rod drive the extension plate to move. When the extension plate moves, it will drive the plug rods to be separated from the L-shaped plate one by one. Then the plug plate can be pulled out for maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the structure of a full heat recovery vacuum lithium bromide solution content increasing device provided by the present invention;

[0022] Figure 2 A schematic diagram of the overall top view structure provided by the present invention;

[0023] Figure 3 A schematic diagram of the unfolded structure of the baffle shell and the plug plate provided by the present invention;

[0024] Figure 4 A schematic diagram of the cross-sectional structure of the flash box provided by the present invention;

[0025] Figure 5 This is a schematic cross-sectional structure diagram of the retaining shell and the inserting plate provided by the present invention.

[0026] Figure 6 This is a schematic diagram of the installation assembly structure provided by the present invention.

[0027] Figure 7 This is a schematic diagram of the structure of the limit assembly provided by the present invention.

[0028] In the figure: 1, expansion tank; 2, flash tank; 3, water source heat pump; 4, condenser; 5, air source; 6, plate heat exchanger; 7, condensate tank; 8, vacuum pump; 9, flash pressure device; 10, connection shell; 11, baffle shell; 111, first handle; 12, support plate; 13, plug block; 14, installation assembly; 1401, first spring; 1402, card block; 1403, pull rod; 1404, pull plate; 15, plug plate; 151, second handle; 16 , limit shell; 17, L-shaped plate; 18, limit assembly; 1801, movable plate; 1802, guide plate; 1803, screw; 1804, torsion block; 1805, guide wheel; 1806, connecting rod; 1807, extension plate; 1808, insertion rod; 1809, third spring; 1810, slider; 1811, slide groove; 1812, retaining rod; 19, baffle; 20, leakage hole; 21, second spring; 22, movable plate; 23, limit rod. DETAILED DESCRIPTION

[0029] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0030] See also Figure 1-7As shown, the full heat recovery vacuum lithium bromide solution content increasing device includes an expansion water tank 1, a flash tank 2, a water source heat pump 3, a condenser 4, an air source 5, a plate heat exchanger 6, a condensate tank 7 and a vacuum pump 8, and also includes: a flash pressure device 9 on one side of the top of the flash tank 2, and the expansion water tank 1, the flash tank 2, the water source heat pump 3, the condenser 4, the air source 5, the plate heat exchanger 6, the condensate tank 7 and the vacuum pump 8 are connected by related valves, pipelines, instruments, and shielded pumps. This is the prior art, and this solution will not be elaborated, and those skilled in the art can clearly understand the working principle. The tops of both sides of the flash tank 2 are fixedly connected A connecting shell 10 is connected, a baffle shell 11 is arranged at the top of the inner cavity of the flash box 2, baffles 19 are arranged at the top and bottom of the inner cavity of the baffle shell 11, and a shutter-shaped baffle 19 is arranged in the baffle shell 11 to block liquid and prevent flash splashing, the baffle 19 is in the shape of a shutter, a first handle 111 is fixedly connected to the front side of the baffle shell 11, and both sides of the front side of the baffle shell 11 are fixedly connected to plug blocks 13, and the baffle shell 11 is convenient for disassembly and maintenance through the cooperation of the plug block 13 and the installation component 14, and the inner cavity of the connecting shell 10 is fixedly connected to the installation component 14 used for the plug block 13, and the installation component 14 includes a first spring 1401;

[0031] The plug plate 15 is arranged in the inner cavity of the flash box 2, and a leakage hole 20 is opened on the top of the plug plate 15. The leakage hole 20 is a small cone-shaped cone. There are three plug plates 15, and they are staggered. The leakage hole on the top of the plug plate 15 is a small cone-shaped cone, which can increase the area and liquid-friendly operation, so that the liquid stays for a long time and the area is larger. The number of plug plates 15 is three, and the front side of the plug plate 15 is fixedly connected to the second handle 151. Both sides of the flash box 2 are fixedly connected to the limited space shell 16, both sides of the front side of the plug board 15 are fixedly connected with L-shaped plates 17, and the L-shaped plate 17 cooperates with the limiting component 18 to facilitate the disassembly and maintenance of the plug board 15. The inner cavity of the limiting shell 16 is provided with a limiting component 18 used in conjunction with the L-shaped plate 17. The limiting component 18 includes a moving plate 1801 and a guide plate 1802. Support plates 12 are provided on both sides of the bottom of the retaining shell 11 and the plug board 15, and the front and rear sides of the support plate 12 are fixedly connected to the inner wall of the flash box 2.

[0032] The top of the first spring 1401 is fixedly connected to the inner wall of the connecting shell 10, the bottom of the first spring 1401 is fixedly connected with a block 1402, the top of the block 1402 is fixedly connected with a pull rod 1403, and the pull plate 1404 is pulled to drive the pull rod 1403 to move. When the pull rod 1403 moves, the block 1402 will be driven to squeeze the first spring 1401, and then the block 1402 will be separated from the plug 13, so that the blocking shell 11 can be taken out for maintenance, and the top of the pull rod 1403 passes through the outside of the connecting shell 10 and is fixedly connected with the pull plate 1404.

[0033] A second spring 21 is fixedly connected to one side of the inner cavity of the connecting shell 10, and a movable plate 22 is fixedly connected to one side of the second spring 21. The front and rear sides of one side of the movable plate 22 are fixedly connected to the limiting rod 23. When the plug block 13 is released from restriction, the second spring 21 will drive the movable plate 22 to reset. At this time, the movable plate 22 drives the limiting rod 23 to move in a limited manner and assists the plug block 13 to pop out. The limiting rod 23 extends from the side away from the plug block 13 to the outside of the connecting shell 10.

[0034] The movable plate 1801 is arranged on the rear side of the inner cavity of the limiting shell 16, and the guide plate 1802 is arranged on the front side of the inner cavity of the limiting shell 16. The rear side of the movable plate 1801 is provided with a screw 1803, and the top and bottom of the rear side of the movable plate 1801 are fixedly connected with a fixing rod 1812, and the rear side of the fixing rod 1812 penetrates to the outer side of the limiting shell 16, and the rear side of the screw 1803 penetrates to the outer side of the limiting shell 16 and is fixedly connected with a torsion block 1804. The top and bottom of the front side of the movable plate 1801 are provided with a guide wheel 1805, and one side of the guide plate 1802 is fixedly connected with a connecting rod 1806, and the opposite sides of the two connecting rods 1806 are fixedly connected with an extension plate 1807, and the opposite sides of the two extension plates 1807 are fixedly connected with an insertion rod 1808. Twisting the torsion block 1804 makes the screw 1803 rotate in the limiting shell 16. At this time, the movable plate 1801 will The dynamic retaining rod 1812 moves within the limiting shell 16 and drives the guide wheel 1805 to press against the inclined surface of the guide plate 1802. At this time, the guide plate 1802 will stretch the third spring 1809 and make the connecting rod 1806 drive the extension plate 1807 to move. When the extension plate 1807 moves, it will drive the insertion rods 1808 to disengage from the L-shaped plate 17 one by one, and then the insertion plate 15 can be pulled out for maintenance. The surface of the insertion rod 1808 is plugged into the inner cavity of the L-shaped plate 17. The third spring 1809 for resetting is fixedly connected to the opposite side of the two guide plates 1802. Slide blocks 1810 are fixedly connected to both sides of the guide plates 1802. The sliding connection between the slider 1810 and the slide groove 1811 can improve the stability of the guide plate 1802 when it moves. Slide grooves 1811 used to cooperate with the slider 1810 are provided on both sides of the inner cavity of the limiting shell 16.

[0035] Working principle: When the user needs to disassemble the baffle shell 11 to maintain the baffle plate 19, the pull plate 1404 is pulled to drive the pull rod 1403 to move. When the pull rod 1403 moves, the block 1402 is driven to squeeze the first spring 1401, and then the block 1402 is separated from the plug block 13. At this time, the second spring 21 drives the movable plate 22 to reset. At this time, the movable plate 22 drives the limit rod 23 to move in a limited position and simultaneously ejects the plug block 13 to assist in taking out the baffle shell 11 for maintenance work. If it is necessary to disassemble and maintain multiple plug plates 15, twist the torsion block 1804 to make the screw rod 1803 rotate in the limiting shell 16. At this time, the movable plate 1801 will drive the retaining rod 1812 to move in the limiting shell 16 and drive the guide wheel 1805 to press the inclined surface of the guide plate 1802. At this time, the guide plate 1802 will stretch the third spring 1809 and make the connecting rod 1806 drive the extension plate 1807 to move. When the extension plate 1807 moves, it will drive the plug rod 1808 The expansion water tank 1, the flash box 2, the water source heat pump 3, the condenser 4, the air source 5, the plate heat exchanger 6, the condensate tank 7 and the vacuum pump 8 are connected by auxiliary valves, pipelines, instruments and shielded pumps. The flash water of the lithium bromide aqueous solution has a low boiling point under vacuum. The condensation heat of the water vapor evaporated from the aqueous solution in the flash box 2 is provided to the water source heat pump 3 for absorption as its input heat. The water source heat pump 3 prepares 60-80 degree hot water to provide heat input for the flash box 2, which is continuously circulated. The water vapor generated by boiling is condensed in the heat exchanger. The condensation heat is absorbed by the circulating water and circulated to the water source heat pump 3 side as the supply heat source, which maximizes the energy efficiency of the water source heat pump 3. The water source heat pump 3 can also achieve a very high energy efficiency output in winter, solving the two problems of the energy efficiency of the water source heat pump 3 and the need for cooling tower heat dissipation. There is no heat waste in the whole process, thereby saving electricity and water resources.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A full heat recovery vacuum type lithium bromide solution content increasing device, comprising an expansion water tank (1), a flash tank (2), a water source heat pump (3), a condenser (4), an air source (5), a plate heat exchanger (6), a condensate tank (7) and a vacuum pump (8), characterized in that: Also includes: A flash pressure device (9) is arranged on one side of the top of the flash box (2), the tops of both sides of the flash box (2) are fixedly connected with a connecting shell (10), the top of the inner cavity of the flash box (2) is provided with a retaining shell (11), the front side of the retaining shell (11) is fixedly connected with a first handle (111), both sides of the front side of the retaining shell (11) are fixedly connected with an insert block (13), the inner cavity of the connecting shell (10) is fixedly connected with a mounting assembly (14) for use in conjunction with the insert block (13), and the mounting assembly (14) comprises a first spring (1401); An insert plate (15) is arranged in the inner cavity of the flash box (2), and the number of the insert plates (15) is three. The front side of the insert plate (15) is fixedly connected to a second handle (151). Both sides of the flash box (2) are fixedly connected to a limit shell (16). Both sides of the front side of the insert plate (15) are fixedly connected to an L-shaped plate (17). The inner cavity of the limit shell (16) is provided with a limit assembly (18) used in conjunction with the L-shaped plate (17). The limit assembly (18) includes a movable plate (1801) and a guide plate (1802). Support plates (12) are provided on both sides of the bottom of the stop shell (11) and the insert plate (15), and the front and rear sides of the support plate (12) are fixedly connected to the inner wall of the flash box (2).

2. The full heat recovery vacuum type lithium bromide solution content increasing device according to claim 1, characterized in that: Baffles (19) are provided at the top and bottom of the inner cavity of the baffle shell (11), and the baffles (19) are in the shape of shutters.

3. The full heat recovery vacuum type lithium bromide solution content increasing device according to claim 1, characterized in that: A leakage hole (20) is provided on the top of the plug plate (15), and the leakage hole (20) is in the shape of a small conical cone.

4. The full heat recovery vacuum type lithium bromide solution content increasing device according to claim 1, characterized in that: The top of the first spring (1401) is fixedly connected to the inner wall of the connecting shell (10), the bottom of the first spring (1401) is fixedly connected to a clamping block (1402), the top of the clamping block (1402) is fixedly connected to a pull rod (1403), and the top of the pull rod (1403) passes through the outside of the connecting shell (10) and is fixedly connected to a pull plate (1404).

5. The full heat recovery vacuum type lithium bromide solution content increasing device according to claim 1, characterized in that: A second spring (21) is fixedly connected to one side of the inner cavity of the connection shell (10), and a movable plate (22) is fixedly connected to one side of the second spring (21).

6. The full heat recovery vacuum type lithium bromide solution content increasing device according to claim 5, characterized in that: The front and rear sides of one side of the movable plate (22) are both fixedly connected to limit rods (23), and the side of the limit rod (23) away from the plug block (13) penetrates to the outside of the connection shell (10).

7. The full heat recovery vacuum type lithium bromide solution content increasing device according to claim 1, characterized in that: The movable plate (1801) is arranged on the rear side of the inner cavity of the limiting shell (16), and the guide plate (1802) is arranged on the front side of the inner cavity of the limiting shell (16). A screw rod (1803) is arranged on the rear side of the movable plate (1801), and the rear side of the screw rod (1803) passes through the outer side of the limiting shell (16) and is fixedly connected to a torsion block (1804). Guide wheels (1805) are arranged on the top and bottom of the front side of the movable plate (1801).

8. The full heat recovery vacuum type lithium bromide solution content increasing device according to claim 7, characterized in that: One side of the guide plate (1802) is fixedly connected to a connecting rod (1806), and the opposite sides of the two connecting rods (1806) are fixedly connected to extension plates (1807), and the opposite sides of the two extension plates (1807) are fixedly connected to insertion rods (1808), and the surface of the insertion rod (1808) is plugged into the inner cavity of the L-shaped plate (17), and the opposite sides of the two guide plates (1802) are fixedly connected to a third spring (1809) for resetting.

9. The full heat recovery vacuum type lithium bromide solution content increasing device according to claim 7, characterized in that: Slide blocks (1810) are fixedly connected to both sides of the guide plate (1802), and slide grooves (1811) used in conjunction with the slide blocks (1810) are provided on both sides of the inner cavity of the limiting shell (16).

10. The full heat recovery vacuum type lithium bromide solution content increasing device according to claim 7, characterized in that: The top and bottom of the rear side of the movable plate (1801) are fixedly connected with a retaining rod (1812), and the rear side of the retaining rod (1812) penetrates to the outside of the limiting shell (16).

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