A balancing mechanism and a lithium bromide generator unit containing the mechanism

By designing a balancing mechanism that automatically switches between the impurity storage box and liquid water rinsing, the problem of impurity clogging in lithium bromide units was solved, achieving efficient impurity filtration and convenient collection, and improving filtration efficiency and solution circulation stability.

CN224455002UActive Publication Date: 2026-07-03SHANGHAI HONGQIAO BUSINESS DISTRICT NEW ENERGY INVESTMENT DEV CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI HONGQIAO BUSINESS DISTRICT NEW ENERGY INVESTMENT DEV CO LTD
Filing Date
2025-08-27
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

In existing lithium bromide units, impurities accumulate on the filter screen, causing blockage, reducing filtration efficiency, and affecting solution flow and pressure stability.

Method used

Design a balancing mechanism that includes a housing, a transmission rod, a waste collection frame, and a filter screen cylinder. By automatically switching between the waste collection frame and liquid water rinsing, it can achieve efficient filtration and convenient collection of impurities, ensuring the continuous efficiency of the filter screen.

Benefits of technology

It achieves efficient filtration and convenient collection of impurities, improves filtration efficiency, reduces the difficulty of cleaning impurities, and ensures the stability and efficiency of solution circulation.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a balancing mechanism and a lithium bromide unit containing the mechanism, relating to the technical field of lithium bromide unit technology. The balancing mechanism includes a housing and infusion pipes. The housing has infusion ports at the ends of two infusion pipes, and a replacement port at the top of the housing, located at one end of one infusion pipe. A filter module for collecting impurities is installed on the housing. This utility model can efficiently filter impurities in liquid water, and through continuous flushing with subsequent liquid water, impurities can easily accumulate inside a storage frame. This not only enables convenient collection of impurities but also ensures continuous and efficient filtration. Furthermore, the automatic switching between the two storage frames further improves filtration efficiency. When cleaning impurities, the storage frames can be easily removed and replaced, further reducing the difficulty of cleaning.
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Description

Technical Field

[0001] This utility model relates to the technical field of lithium bromide generator sets, specifically a balancing mechanism and a lithium bromide generator set containing the mechanism. Background Technology

[0002] Lithium bromide (LBS) units are absorption refrigeration (or heating) equipment that uses lithium bromide solution as absorbent and water as refrigerant. Their core is driven by thermal energy (such as steam, gas, industrial waste heat, etc.) and utilizes the strong absorption characteristics of lithium bromide solution on water to complete the thermodynamic cycle. Unlike compression refrigeration equipment that relies on electrical energy, LBS units mainly utilize low-grade thermal energy and have the characteristics of energy saving and environmental protection (CFC-free).

[0003] During long-term operation, lithium bromide units experience corrosion of metal components by the lithium bromide solution, leading to the formation of impurities in the solution. Over time, some impurities deposit in the pipes, while others remain suspended in the solution. This not only reduces heat exchange efficiency but also alters the solution's flow resistance, causing internal pressure imbalance and unstable solution circulation. To prevent this imbalance, a balancing mechanism is used to filter and collect impurities. However, existing balancing mechanisms typically employ filter screens. When impurities accumulate to a certain level, they clog most of the screen's pores, reducing filtration efficiency. Therefore, this paper proposes a balancing mechanism and a lithium bromide unit incorporating this mechanism, eliminating the drawbacks of existing devices. Utility Model Content

[0004] The purpose of this invention is to provide a balancing mechanism and a lithium bromide generator unit containing the mechanism to solve the problems in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A balancing mechanism includes a housing, on which two infusion tubes are symmetrically fixedly connected to the outer wall of the housing. The two infusion tubes are located at the upper and lower ends of the housing, respectively. An infusion port is provided at the ends of the two infusion tubes on the housing. A replacement port is provided at the top of the housing, located at one end of one of the infusion tubes. A filter module for filtering and collecting impurities is provided on the housing.

[0007] The filtering module includes:

[0008] A transmission rod is rotatably connected inside the outer casing. Two storage frames are symmetrically arranged on the outer wall of the transmission rod. A filter screen cylinder is fixedly connected to the inner wall of each of the two storage frames. The top outer wall of the filter screen cylinder is truncated cone-shaped.

[0009] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0010] In one alternative embodiment, the filtering module further includes:

[0011] A support assembly mounted on the transmission shaft;

[0012] The support components include:

[0013] A support turntable is fixedly connected to the outer wall of the transmission rod. The inner wall of the outer shell is integrally formed with a fixing ring. The support turntable is slidably sleeved on the outer wall of the fixing ring. A drain port is opened at the port of the filter screen cylinder of the support turntable.

[0014] The storage frame is provided with a docking component for limiting the connection between the storage frame and the supporting turntable;

[0015] The transmission rod is provided with a first limiting component for limiting the position of the storage frame;

[0016] The transmission rod is equipped with a rotating component for driving the transmission rod to rotate.

[0017] In one alternative embodiment, the docking component includes:

[0018] Two docking rods are symmetrically fixedly connected to the bottom of the storage frame. Both docking rods extend to the outside of the bottom of the supporting turntable. The drain port is located between the two docking rods. The outer wall of the bottom end of both docking rods is frustum-shaped.

[0019] The outer shell is equipped with a push component.

[0020] In one alternative embodiment, the push component includes:

[0021] A connecting push plate is slidably connected inside the outer shell. The connecting push plate is located below a storage frame. A limiting push block is fixedly connected to the bottom end of the connecting push plate. The limiting push block extends through to the outside of the bottom end of the outer shell and is slidably connected to the outer shell.

[0022] In one alternative embodiment: the first limiting component includes:

[0023] Two limiting baffles are symmetrically fixedly connected to the outer wall of the transmission rod. Both limiting baffles are located at the top of the support turntable and are fixedly connected to the support turntable.

[0024] In one alternative: the rotating assembly is a knob fixedly connected to the bottom end of the transmission rod, the knob is located below the housing, and the knob is located between the limiting push block and an infusion tube;

[0025] The knob is equipped with a second limiting component.

[0026] In one alternative embodiment, the second limiting component includes:

[0027] A limiting rotating ring is fixedly connected to the outer wall of the knob, and a fixed stop block is fixedly connected to the bottom end of the outer shell. A limiting groove is provided at the position where the limiting rotating ring and the fixed stop block are connected, allowing the fixed stop block to slide.

[0028] In one alternative: the outer wall of the housing is integrally formed with a connecting plate, and a sealing cover is rotatably connected to the top of the housing. The sealing cover is located at the top of the replacement port and contacts the upper surface of the housing and the connecting plate. A sealing gasket is provided at the contact position between the housing and the sealing cover. A bolt is provided at the top of the sealing cover, and the bolt passes through the sealing cover to the bottom of the connecting plate. The bolt is threadedly connected to the connecting plate.

[0029] A lithium bromide generator unit includes the aforementioned balancing mechanism, and further includes a generator, a condenser, an evaporator, an absorber, a solution pump, and a heat exchanger.

[0030] The two outputs of the generator are fixedly connected to the inputs of the condenser and the absorber respectively via the first water supply pipe. The two liquid supply pipes are fixedly connected to the output of the condenser and the input of the evaporator respectively. The output of the evaporator is fixedly connected to the input of the absorber via the second water supply pipe. The output of the absorber is fixedly connected to the input of the solution pump via the third water supply pipe. The output of the solution pump is fixedly connected to the input of the heat exchanger via the fourth water supply pipe. The output of the heat exchanger is fixedly connected to the input of the generator via the fifth water supply pipe.

[0031] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0032] This invention can efficiently filter impurities in liquid water. Through continuous rinsing with liquid water, impurities can be easily accumulated inside the impurity storage frame. This not only enables convenient collection of impurities but also ensures continuous and efficient filtration. Furthermore, the automatic switching between the two impurity storage frames can further improve filtration efficiency. When cleaning impurities, the impurity storage frames can be easily removed and replaced, further reducing the difficulty of cleaning impurities. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of this utility model.

[0034] Figure 2 This is a schematic diagram of the internal structure of the outer shell of this utility model.

[0035] Figure 3This is a schematic diagram of the connection structure between the limiting rotating ring and the fixed stop block of this utility model.

[0036] Figure 4 This is a schematic diagram of the connection structure between the filter cylinder and the storage frame of this utility model.

[0037] Figure 5 This is a schematic diagram of the lithium bromide generator unit of this utility model.

[0038] Figure reference numerals: 1. Outer shell; 201. Limiting baffle; 202. Support turntable; 203. Limiting rotating ring; 204. Knob; 205. Fixing block; 206. Limiting push block; 207. Connecting push plate; 208. Fixing ring; 209. Transmission rod; 2010. Filter screen cylinder; 2011. Impurity storage frame; 2012. Connecting rod; 3. Infusion tube; 4. Bolt; 5. Connecting plate; 6. Sealing cover; 7. Replacement port. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0040] In one embodiment, such as Figures 1-5 As shown, a balancing mechanism includes a housing 1. Two infusion tubes 3 are symmetrically fixedly connected to the outer wall of the housing 1. The two infusion tubes 3 are located at the upper and lower ends of the housing 1, respectively. Infusion ports are opened at the ends of the two infusion tubes 3 on the housing 1. A replacement port 7 is opened at the top of the housing 1. The replacement port 7 is located at one end of one of the infusion tubes 3. A connecting plate 5 is integrally formed on the outer wall of the housing 1. A sealing cover plate 6 is rotatably connected to the top of the housing 1. The sealing cover plate 6 is located at the top of the replacement port 7. The sealing cover plate 6 is in contact with the upper surface of the housing 1 and the connecting plate 5. A sealing gasket is provided at the contact position between the housing 1 and the sealing cover plate 6. A bolt 4 is provided at the top of the sealing cover plate 6. The bolt 4 passes through the sealing cover plate 6 to the outside of the bottom end of the connecting plate 5. The bolt 4 is threadedly connected to the connecting plate 5. A filter module for filtering and collecting impurities is provided on the housing 1.

[0041] The filter module includes: a transmission rod 209 rotatably connected inside the housing 1; two storage frames 2011 are symmetrically arranged on the outer wall of the transmission rod 209; filter screen cylinders 2010 are fixedly connected to the inner walls of the two storage frames 2011; the top outer wall of the filter screen cylinder 2010 is frustoconical.

[0042] A lithium bromide generator unit includes the aforementioned balancing mechanism, and further includes a generator, a condenser, an evaporator, an absorber, a solution pump, and a heat exchanger; the two output ends of the generator are fixedly connected to the input ends of the condenser and the absorber respectively via a first water supply pipe, the two liquid supply pipes 3 are fixedly connected to the output end of the condenser and the input end of the evaporator respectively, the output end of the evaporator is fixedly connected to the input end of the absorber via a second water supply pipe, the output end of the absorber is fixedly connected to the input end of the solution pump via a third water supply pipe, the output end of the solution pump is fixedly connected to the input end of the heat exchanger via a fourth water supply pipe, and the output end of the heat exchanger is fixedly connected to the input end of the generator via a fifth water supply pipe;

[0043] In this embodiment, the concentrated solution is heated in the generator to separate water vapor refrigerant. The water vapor is condensed into liquid water by cooling water in the condenser. Then, impurities in the liquid water are filtered through the filtration module. The filtered liquid water evaporates in the low-pressure environment of the evaporator, absorbing heat from the chilled water to achieve refrigeration. The generated low-pressure water vapor is then strongly absorbed by the concentrated solution from the generator in the absorber after cooling, making the solution dilute. The dilute solution is pressurized by the solution pump, preheated by the heat exchanger, and returned to the generator to be reheated and concentrated, thus completing the cycle.

[0044] When a large amount of impurities accumulate in the inner cavity of one impurity storage frame 2011 during use, the two impurity storage frames 2011 can be automatically switched by rotating, which can further improve the filtration effect of impurities. When it is necessary to replace the two impurity storage frames 2011, the unit is stopped and the pressure is released. Then, the bolt 4 is separated from the connecting plate 5 by rotating the tool, which can release the compression lock on the sealing cover 6. Then, rotating the sealing cover 6 can expose the port of the replacement port 7. Then, the two impurity storage frames 2011 can be replaced in sequence through the filter module, so that the two impurity storage frames 2011 can be replaced conveniently.

[0045] In one embodiment, such as Figures 2-4 As shown, the filter module also includes a support assembly disposed on the transmission rod 209;

[0046] The support assembly includes: a support turntable 202 fixedly connected to the outer wall of the transmission rod 209; a fixing ring 208 integrally formed on the inner wall of the outer shell 1; the support turntable 202 slidably sleeved on the outer wall of the fixing ring 208; and a drain port is provided at the port of the filter cylinder 2010 of the support turntable 202.

[0047] The storage box 2011 is provided with a docking component for limiting the docking between the storage box 2011 and the support turntable 202;

[0048] The transmission rod 209 is provided with a first limiting component for limiting the storage frame 2011;

[0049] The transmission rod 209 is provided with a rotating assembly for driving the transmission rod 209 to rotate;

[0050] The first limiting component includes two limiting baffles 201 that are symmetrically fixedly connected to the outer wall of the transmission rod 209. Both limiting baffles 201 are located at the top of the support turntable 202, and both limiting baffles 201 are fixedly connected to the support turntable 202.

[0051] In one embodiment, such as Figures 2-3 As shown, the docking assembly includes: two docking rods 2012 symmetrically fixedly connected to the bottom end of the storage frame 2011, both docking rods 2012 extending to the outside of the bottom end of the support turntable 202, the drain port being located between the two docking rods 2012, and the bottom outer wall of both docking rods 2012 being frustum-shaped.

[0052] A push component is provided on the outer casing 1;

[0053] The pushing component includes: a connecting push plate 207 that is slidably connected inside the housing 1, the connecting push plate 207 being located below a storage box 2011, a limiting push block 206 being fixedly connected to the bottom end of the connecting push plate 207, the limiting push block 206 extending through to the outside of the bottom end of the housing 1, and the limiting push block 206 being slidably connected to the housing 1.

[0054] In one embodiment, such as Figures 2-4 As shown, the rotating component is a knob 204 fixedly connected to the bottom end of the transmission rod 209. The knob 204 is located below the housing 1 and is located between the limiting push block 206 and an infusion tube 3.

[0055] A second limit component is provided on knob 204;

[0056] The second limiting component includes: a limiting ring 203 fixedly connected to the outer wall of the knob 204, a fixed stop 205 fixedly connected to the bottom end of the outer shell 1, and a limiting groove for the fixed stop 205 to slide at the contact position between the limiting ring 203 and the fixed stop 205.

[0057] The above embodiments disclose a balancing mechanism and a lithium bromide unit containing the mechanism. In use, the lithium bromide unit uses water as a refrigerant and lithium bromide solution as an absorbent. The refrigeration cycle is completed by thermal energy drive. The generator heats the concentrated solution to separate water vapor refrigerant, and the water vapor is transported to the condenser through a first water supply pipe. At this time, the generator transports the concentrated solution to the absorber after cooling through another first water supply pipe.

[0058] Meanwhile, the condenser condenses water vapor into liquid water through cooling water, and then delivers it to the inner cavity of the outer shell 1 through a liquid delivery pipe 3 for filtration and impurity removal. Then, through another liquid delivery pipe 3, the impurity-removed liquid water is delivered to the evaporator. At this time, the liquid water evaporates in the low-pressure environment of the evaporator and can achieve refrigeration by absorbing heat from the chilled water. Then, through the second water delivery pipe, the generated low-pressure water vapor is delivered to the absorber. At this time, the low-pressure water vapor is strongly absorbed by the concentrated solution from the generator, thereby diluting the solution. At this time, the solution pump can draw the dilute solution through the third water delivery pipe and deliver the dilute solution under pressure to the heat exchanger for preheating through the fourth water delivery pipe. Then, through the fifth water delivery pipe, the preheated dilute solution is delivered to the generator, thereby reheating and concentrating the dilute solution, thus completing the purpose of solution circulation.

[0059] During this process, when liquid water enters the inner cavity of a storage frame 2011 through a delivery pipe 3 and the outer shell 1, impurities in the liquid water can be filtered through the filter screen 2010. At the same time, the filtered liquid water can be discharged to the bottom of the support turntable 202 through the drain port. At this time, through subsequent flushing with liquid water, impurities attached to the outer wall of the filter screen 2010 can be accumulated at the bottom of the inner wall of the storage frame 2011, so as to facilitate the collection of impurities and effectively ensure that the filter screen 2010 can continuously and efficiently filter impurities. Afterwards, the filtered and impurity-removed liquid water can be transported to the evaporator through another delivery pipe 3.

[0060] When a large amount of impurities accumulate in the inner cavity of a storage frame 2011, rotating the knob 204 causes the limiting ring 203 to rotate along the outer wall of the fixed block 205. At the same time, the transmission rod 209, driven by the knob 204, drives the limiting baffle 201 and the support turntable 202 to rotate synchronously. At this time, the support turntable 202 rotates along the outer wall of the fixed ring 208. Meanwhile, the two storage frames 2011 move through the docking rod 2012 under the drive of the support turntable 202 until the fixed block 205 contacts the inner wall of the other end of the limiting ring 203. This allows for automatic switching between the two storage frames 2011, thereby further improving the filtration effect of impurities.

[0061] When it is necessary to replace the two storage boxes 2011, the unit is stopped and pressure is released. Then, the bolt 4 is rotated to separate it from the connecting plate 5, thereby releasing the pressure lock on the sealing cover 6. Then, the sealing cover 6 is rotated to expose the port 7 of the replacement port. At this time, the limiting push block 206 is pushed up along the inner wall of the outer shell 1. At the same time, the connecting push plate 207 is pushed up synchronously by the limiting push block 206. When the connecting push plate 207 contacts the lower surface of the docking rod 2012, one storage box 2011 is connected to the two docking rods. Driven by the connecting push plate 207, the filter screen cylinder 2010 rises synchronously. When the storage frame 2011 contacts the inner wall of the replacement port 7, the storage frame 2011 slides and rises along the inner wall of the replacement port 7. When the connecting push plate 207 contacts the lower surface of the support turntable 202, the storage frame 2011 can be manually pulled out of the inner cavity of the outer shell 1 and a new storage frame 2011 can be inserted. Then, the knob 204 can be turned to repeat the operation on the other storage frame 2011. In this way, the two storage frames 2011 can be easily replaced.

[0062] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A balancing mechanism, comprising a housing (1), wherein two infusion tubes (3) are symmetrically fixedly connected to the outer wall of the housing (1), the two infusion tubes (3) are respectively located at the upper and lower ends of the housing (1), and each end of the housing (1) is provided with an infusion port, and a replacement port (7) is provided at the top of the housing (1), the replacement port (7) being located at one end of one infusion tube (3), characterized in that, The outer shell (1) is provided with a filter module for filtering and collecting impurities; The filter module includes: a transmission rod (209) rotatably connected inside the outer shell (1), and two storage frames (2011) are symmetrically arranged on the outer wall of the transmission rod (209). The inner walls of the two storage frames (2011) are fixedly connected with filter cylinders (2010), and the top outer wall of the filter cylinders (2010) is frustum-shaped.

2. The balancing mechanism according to claim 1, characterized in that, The filter module also includes a support assembly disposed on the transmission rod (209); The support assembly includes: a support turntable (202) fixedly connected to the outer wall of the transmission rod (209); a fixing ring (208) integrally formed on the inner wall of the outer shell (1); the support turntable (202) is slidably sleeved on the outer wall of the fixing ring (208); and a drain port is provided at the port of the filter cylinder (2010) of the support turntable (202). The storage box (2011) is provided with a docking component for limiting and docking between the storage box (2011) and the support turntable (202); The transmission rod (209) is provided with a first limiting component for limiting the storage frame (2011); The transmission rod (209) is provided with a rotating component for driving the transmission rod (209) to rotate.

3. A balancing mechanism according to claim 2, characterized in that, The docking components include: Two docking rods (2012) are symmetrically fixedly connected to the bottom end of the storage frame (2011). Both docking rods (2012) extend to the outside of the bottom end of the support turntable (202). The drain port is located between the two docking rods (2012). The bottom outer wall of both docking rods (2012) is frustum-shaped. The outer shell (1) is provided with a push component.

4. A balancing mechanism according to claim 3, characterized in that, The pushing component includes: a connecting push plate (207) slidably connected inside the housing (1), the connecting push plate (207) being located below a storage frame (2011), a limiting push block (206) being fixedly connected to the bottom end of the connecting push plate (207), the limiting push block (206) extending through to the outside of the bottom end of the housing (1), and the limiting push block (206) being slidably connected to the housing (1).

5. A balancing mechanism according to claim 2, characterized in that, The first limiting component includes two limiting baffles (201) symmetrically fixedly connected to the outer wall of the transmission rotating rod (209). Both limiting baffles (201) are located at the top of the support turntable (202), and both limiting baffles (201) are fixedly connected to the support turntable (202).

6. A balancing mechanism according to claim 2, characterized in that, The rotating component is a knob (204) fixedly connected to the bottom end of the transmission rod (209). The knob (204) is located below the outer shell (1) and is located between the limiting push block (206) and an infusion tube (3). The knob (204) is provided with a second limiting component.

7. A balancing mechanism according to claim 6, characterized in that, The second limiting component includes: a limiting ring (203) fixedly connected to the outer wall of the knob (204), a fixed stop (205) fixedly connected to the bottom end of the outer shell (1), and a limiting groove for the fixed stop (205) to slide at the contact position between the limiting ring (203) and the fixed stop (205).

8. A balancing mechanism according to claim 1, characterized in that, The outer wall of the outer shell (1) is integrally formed with a connecting plate (5). A sealing cover plate (6) is rotatably connected to the top of the outer shell (1). The sealing cover plate (6) is located at the top of the replacement port (7). The sealing cover plate (6) is in contact with the upper surface of the outer shell (1) and the connecting plate (5). A sealing gasket is provided at the junction of the outer shell (1) and the sealing cover plate (6). A bolt (4) is provided at the top of the sealing cover plate (6). The bolt (4) passes through the sealing cover plate (6) to the bottom outside of the connecting plate (5). The bolt (4) is threadedly connected to the connecting plate (5).

9. A lithium bromide generator unit, comprising the balancing mechanism according to any one of claims 1-8, characterized in that, It also includes generators, condensers, evaporators, absorbers, solution pumps, and heat exchangers; The two output ends of the generator are fixedly connected to the input ends of the condenser and the absorber respectively through the first water supply pipe. The two liquid supply pipes (3) are fixedly connected to the output end of the condenser and the input end of the evaporator respectively. The output end of the evaporator is fixedly connected to the input end of the absorber through the second water supply pipe. The output end of the absorber is fixedly connected to the input end of the solution pump through the third water supply pipe. The output end of the solution pump is fixedly connected to the input end of the heat exchanger through the fourth water supply pipe. The output end of the heat exchanger is fixedly connected to the input end of the generator through the fifth water supply pipe.