Lithium bromide solution filtering device

Abstract

The utility model relates to the technical field of lithium bromide solution purifying devices, in particular to a lithium bromide solution filtering device which comprises a stainless steel cylinder, an upper liquid outlet chamber and a lower liquid inlet chamber which are distributed up and down are arranged in the cylinder, at least two filter elements are fixed on the lower liquid inlet chamber, and the upper portions of the filter elements are communicated with the upper liquid outlet chamber. A vacuumizing opening and a solution outlet are formed in the positions, corresponding to the upper portion of the upper liquid outlet chamber, of the barrel, a solution inlet is formed in the position, corresponding to the middle of the lower liquid inlet chamber, of the barrel, and a drain outlet is formed in the position, corresponding to the bottom of the lower liquid inlet chamber, of the barrel. The lithium bromide solution purification device is reasonable and compact in structure and convenient to use, impurities in a lithium bromide solution are effectively adsorbed and filtered, so that the lithium bromide solution is purified, and the refrigerating effect of a unit is effectively improved; under the state that the solution is not completely discharged, the device achieves the purpose of removing impurities from the solution and filtering the solution during normal operation of a unit, and is simple in structure, flexible to move and capable of being repeatedly used.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium bromide solution purification devices, in particular to a lithium bromide solution filtering device. Background Art

[0002] The steam-type double-effect lithium bromide absorption chiller uses saturated steam as the heat source (working steam), water as the refrigerant, and a lithium bromide aqueous solution as the absorbent. It produces 7°C chilled water under vacuum conditions for use in production workshops and process temperature control. The unit consists of a high-pressure generator, a low-pressure generator, a condenser, an evaporator, an absorber, and other key components: a high-temperature heat exchanger, a low-temperature heat exchanger, and a condensate heat exchanger. Auxiliary components include an exhaust device, a melting tube, a solution pump, and a refrigerant pump (shielded pump).

[0003] In the binary working fluid circulating within a lithium bromide absorption chiller, water serves as the refrigerant. Water evaporates under vacuum, having a low evaporation temperature (6°C). This absorbs the heat load of the refrigerant, lowering its temperature. The lithium bromide aqueous solution acts as the absorbent, rapidly absorbing water vapor at room and low temperatures but releasing it at elevated temperatures. This repetitive cycle of absorption and release continues the refrigeration cycle.

[0004] Because the main structure of a lithium bromide absorption refrigeration unit is made of iron, and the lithium bromide solution itself is corrosive to metals, various impurities such as iron and copper filings and compounds can accumulate as the solution circulates within the unit, causing the solution to become turbid. Excessive impurities in the lithium bromide solution can reduce the absorption efficiency of the lithium bromide unit, thereby affecting its cooling performance. Summary of the Invention

[0005] The utility model provides a lithium bromide solution filtering device, which overcomes the shortcomings of the above-mentioned prior art and can effectively solve the problem that the lithium bromide solution absorbent of the existing lithium bromide absorption chiller is easily doped with various impurities, thereby possibly causing the absorption effect of the lithium bromide absorption chiller to decrease.

[0006] The technical solution of the utility model is achieved through the following measures: a lithium bromide solution filtering device, comprising a stainless steel cylinder, an upper liquid outlet chamber and a lower liquid inlet chamber distributed up and down are arranged in the cylinder, at least two filter elements are fixed to the lower liquid inlet chamber, the upper part of the filter element is communicated with the upper liquid outlet chamber, a vacuum port and a solution outlet are respectively provided at the cylinder corresponding to the upper part of the upper liquid outlet chamber, a solution inlet is provided at the cylinder corresponding to the middle part of the lower liquid inlet chamber, and a sewage outlet is provided at the cylinder corresponding to the bottom of the lower liquid inlet chamber.

[0007] The following are further optimizations and / or improvements to the above-mentioned utility model technical solution:

[0008] A pressure detection port is provided on the cylinder body corresponding to the upper portion of the upper liquid outlet chamber, and a pressure gauge is fixedly installed at the pressure detection port. The cylinder body comprises an upper cylinder body and a lower cylinder body, which are connected by a flange. The interior of the upper cylinder body is the upper liquid outlet chamber, and the interior of the lower cylinder body is the lower liquid inlet chamber. The filter element is fixedly installed via the flange.

[0009] A pressure detection port is provided at the cylinder corresponding to the upper portion of the upper liquid outlet chamber, and a pressure gauge is fixedly installed at the pressure detection port.

[0010] The cylinder is fixedly supported by supporting legs.

[0011] The above-mentioned vacuum port, solution outlet, solution inlet and sewage outlet are all fixedly installed with valves.

[0012] The utility model has a reasonable and compact structure and is easy to use. It can effectively adsorb and filter impurities in the lithium bromide solution, thereby purifying the lithium bromide solution and effectively improving the refrigeration effect of the unit. The device can remove impurities from the solution and filter it when the unit is operating normally without completely discharging the solution. The device has a simple structure, is flexible to move, and can be reused. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Attachment Figure 1 This is a schematic diagram of the main structure of an embodiment of the present utility model.

[0014] The codes in the accompanying drawings are: 1 for the upper liquid outlet chamber, 2 for the lower liquid inlet chamber, 3 for the filter element, 4 for the vacuum port, 5 for the solution outlet, 6 for the flange, 7 for the solution inlet, 8 for the sewage outlet, 9 for the pressure detection port, 10 for the upper cylinder, 11 for the lower cylinder, and 12 for the support leg. DETAILED DESCRIPTION

[0015] The present invention is not limited by the following embodiments, and specific implementation methods can be determined based on the technical solution of the present invention and actual conditions.

[0016] In this utility model, for the convenience of description, the relative position relationship of each component is described based on the Figure 1 The positional relationships of front, back, top, bottom, left, and right are described in the layout of the manual. Figure 1 The layout direction is determined by the

[0017] The present invention will be further described below in conjunction with the embodiments and accompanying drawings:

[0018] Example 1: As shown in the attached Figure 1As shown, the lithium bromide solution filtering device includes a stainless steel cylinder, in which an upper liquid outlet chamber 1 and a lower liquid inlet chamber 2 are distributed vertically. At least two filter elements 3 are fixed to the lower liquid inlet chamber 2. The upper part of the filter element 3 is connected to the upper liquid outlet chamber 1. A vacuum port 4 and a solution outlet 5 are respectively provided at the cylinder corresponding to the upper part of the upper liquid outlet chamber 1, a solution inlet 7 is provided at the cylinder corresponding to the middle part of the lower liquid inlet chamber 2, and a sewage outlet 8 is provided at the cylinder corresponding to the bottom of the lower liquid inlet chamber 2.

[0019] A conical pipe can be provided at the sewage outlet 8 and connected to a drain valve, and sewage can be discharged through the sewage outlet 8 when necessary.

[0020] The lithium bromide solution filtering device can be further optimized and / or improved according to actual needs:

[0021] Example 2: As shown in the attached Figure 1 As shown, a pressure detection port 9 is provided at the cylinder corresponding to the upper portion of the upper liquid outlet chamber 1 , and a pressure gauge is fixedly installed at the pressure detection port 9 .

[0022] The pressure gauge is used to observe the pressure changes in the cylinder.

[0023] Example 3: As shown in the attached Figure 1 As shown, the cylinder includes an upper cylinder 10 and a lower cylinder 11, the upper cylinder 10 and the lower cylinder 11 are connected by a flange 6, the interior of the upper cylinder 10 is an upper liquid outlet chamber 1, the interior of the lower cylinder 11 is a lower liquid inlet chamber 2, and the filter element 3 is fixedly installed by the flange 6.

[0024] The upper cylinder 10 and the lower cylinder 11 connected by the flange 6 are convenient for disassembling and assembling the filter element 3 .

[0025] Example 4: As shown in the attached Figure 1 As shown, in order to facilitate the movement of the cylinder, the cylinder is fixedly supported by legs 12.

[0026] Example 5: As needed, the vacuum port 4, the solution outlet 5, the solution inlet 7 and the sewage outlet 8 are all fixedly installed with valves.

[0027] The valves installed at the vacuum port 4 and the solution outlet 5 can be butterfly valves.

[0028] The above technical features constitute a preferred embodiment of the present invention, which has strong adaptability and implementation effect. Non-essential technical features can be added or removed according to actual needs to meet the requirements of different situations.

[0029] Before use, first use a transparent plastic hose to connect one end to the outlet valve of the lithium bromide absorption chiller solution pump, and the other end to the solution inlet 7 of the cylinder, and the vacuum port 4 is connected to the vacuum pump; then use the vacuum pump to evacuate the cylinder, and when the pressure of the cylinder is observed to be negative pressure, open the valves at the solution inlet 7 and the solution outlet 5, and the contaminated lithium bromide solution in the lithium bromide absorption chiller enters the lower liquid inlet chamber 2 through the solution inlet 7. Under the action of negative pressure, the solution in the lower liquid inlet chamber 2 is filtered by the filter element 3 and enters the upper liquid outlet chamber 1, and then the filtered lithium bromide solution is discharged through the solution outlet 5. The filtered lithium bromide solution enters the internal cavity of the unit through the solution pump inlet valve of the unit for circulation. When the observed pressure is positive pressure, repeat the vacuum operation to clean the lithium bromide solution until the color of the lithium bromide solution changes from turbid to clear and transparent.

[0030] It can be seen that the device can achieve the purpose of removing impurities from the solution when the solution is not completely discharged and the unit is operating normally. It has a simple structure, is flexible to move, and can be reused.

Claims

1. A lithium bromide solution filtering device, characterized in that The utility model comprises a stainless steel cylinder body, wherein an upper liquid outlet chamber and a lower liquid inlet chamber are arranged in the cylinder body, at least two filter elements are fixed to the lower liquid inlet chamber, the upper part of the filter element is connected with the upper liquid outlet chamber, a vacuum port and a solution outlet are arranged at the cylinder body corresponding to the upper part of the upper liquid outlet chamber, a solution inlet is arranged at the cylinder body corresponding to the middle part of the lower liquid inlet chamber, and a sewage outlet is arranged at the cylinder body corresponding to the bottom of the lower liquid inlet chamber.

2. The lithium bromide solution filtering device according to claim 1, characterized in that A pressure detection port is provided at the cylinder corresponding to the upper part of the upper liquid outlet chamber, and a pressure gauge is fixedly installed at the pressure detection port; the above-mentioned cylinder includes an upper cylinder and a lower cylinder, the upper cylinder and the lower cylinder are connected by a flange, the interior of the upper cylinder is the upper liquid outlet chamber, and the interior of the lower cylinder is the lower liquid inlet chamber, and the filter element is fixedly installed by the flange.

3. The lithium bromide solution filtering device according to claim 1 or 2, characterized in that The cylinder is fixedly supported by legs.

4. The lithium bromide solution filtering device according to claim 1 or 2, characterized in that Valves are fixedly installed at the vacuum port, solution outlet, solution inlet and sewage outlet.

5. The lithium bromide solution filtering device according to claim 3, characterized in that Valves are fixedly installed at the vacuum port, solution outlet, solution inlet and sewage outlet.

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