Vacuum device of bromine refrigerator

Abstract

The utility model discloses a bromine refrigerator vacuum device, which belongs to the technical field of bromine refrigerators and comprises a base, a gas collecting tank and a sealing cover. A filtering mechanism is mounted on the inner side of a rear end opening of the gas collecting tank, a gas outlet pipe is arranged on the sealing cover, and a vacuum pump is mounted on the base; a supporting rod is connected and installed on the lower side of the sealing cover, a threaded rod is rotationally installed on the base, and a sliding block screwed with the threaded rod is connected to the supporting rod. The vacuum pump vacuumizes the bromine refrigerator through the air inlet pipe, and the bromine refrigerator is filtered through the filtering mechanism, so that good vacuumizing operation on the bromine refrigerator can be realized. When the filtering mechanism needs to be replaced and cleaned, the threaded rod is rotated, the sliding block is screwed with the threaded rod, and the supporting rod drives the sealing cover to move front and back, so that the filtering mechanism can be conveniently disassembled and assembled, the gas collecting tank can be reliably sealed, and the using effect of the filtering mechanism and the service life of the vacuum pump are guaranteed. The whole structure is simple, use is convenient, and usability is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of bromide refrigeration machines, in particular to a vacuum device for bromide refrigeration machines. Background Art

[0002] Lithium bromide refrigerator is a lithium bromide absorption refrigerator, which uses lithium bromide aqueous solution as the working fluid, in which water is the refrigerant and lithium bromide is the absorbent. Lithium bromide belongs to the salt class, is a white crystal, easily soluble in water and alcohol, non-toxic, chemically stable, and will not deteriorate. When there is air in the lithium bromide aqueous solution, it is highly corrosive to steel. Because lithium bromide absorption refrigerator uses water as the refrigerant, the evaporation temperature is above 0°C, and it can only be used for air conditioning equipment and the preparation of cold water for production processes. This refrigerator can use low-pressure water vapor or hot water above 75°C as a heat source, so it plays an important role in the utilization of waste gas, waste heat, solar energy and low-temperature heat energy.

[0003] When lithium bromide units are in the presence of air, lithium bromide solution is highly corrosive to ordinary carbon steel. In addition, during use, lithium bromide is likely to react to produce non-condensable gases, such as oxygen and hydrogen. These gases cannot be condensed and make it impossible to maintain a vacuum inside the device. Therefore, when the lithium bromide unit is in use, a vacuum device is required to extract the air from the lithium bromide unit to form a low-pressure environment.

[0004] In the prior art, when the vacuum device of the bromide refrigerator is evacuated, part of the lithium bromide solution, non-condensable waste gas and large particle impurities will be extracted. In order to ensure the normal operation of the vacuum pump, a filtering structure is generally provided in the vacuum device. However, the filtering structures of the existing vacuum devices are mostly fixed, which is not convenient to replace and clean, and easily affects the use effect of the filtering structure, the vacuuming effect and the service life of the vacuum pump. Utility Model Content

[0005] In order to solve the problem that the existing bromine refrigerator vacuum device has a fixed filter structure, which is inconvenient to replace and clean, and easily affects the use effect of the filter structure, the vacuuming effect and the service life of the vacuum pump, the utility model provides a bromine refrigerator vacuum device.

[0006] The utility model is realized by the following technical solutions:

[0007] A bromide refrigerator vacuum device comprises a base, a gas collecting tank which is positioned and installed on the base and has an opening at the rear end, and a sealing cover which can be sealed and buckled with the rear end of the gas collecting tank; a filtering mechanism is detachably installed on the inner side of the rear end opening of the gas collecting tank, an air outlet pipe is provided on the sealing cover, and a vacuum pump connected to the air outlet pipe is positioned and installed on the base; a support rod is connected and installed on the lower side of the sealing cover, a threaded rod is rotatably installed on the base, and a sliding block which is screwed on the threaded rod is connected to the support rod.

[0008] A further improvement of the utility model is that a guide groove capable of slidingly guiding the support rod is provided on the base.

[0009] A further improvement of the utility model is that a driving motor drivingly connected to the threaded rod is installed on the base.

[0010] A further improvement of the utility model is that the vacuum pump is connected and installed with the air outlet pipe through a delivery pipe of a hose.

[0011] A further improvement of the utility model is that the filtering mechanism includes a filter frame, a filter plate is connected and installed on the inner side of the filter frame, and a drying box is provided in the middle of the filter plate; a mounting groove capable of clamping the filter frame is provided on the inner side of the rear end opening of the gas collecting tank, and a mounting plate capable of clamping and sealing with the mounting groove and press-fitting the filter frame is provided at one end of the sealing cover close to the gas collecting tank.

[0012] A further improvement of the utility model is that a sealing gasket is provided between the rear end of the gas collecting tank and the sealing cover, and between the mounting plate and the filter frame.

[0013] A further improvement of the utility model is that limiting blocks are provided at intervals in an annular manner on the front side of the installation groove, and a card slot capable of being engaged with the limiting card block is provided on the front side of the outer ring of the filter frame.

[0014] A further improvement of the utility model is that a connecting rod capable of supporting the filter plate is positioned and installed inside the filter frame.

[0015] It can be seen from the above technical solutions that the beneficial effects of the utility model are:

[0016] Run the vacuum pump, evacuate the bromide refrigeration machine through the air inlet pipe, and filter the lithium bromide solution, non-condensable waste gas and large particle impurities extracted from the bromide refrigeration machine through the filter mechanism, so as to achieve good vacuum operation of the bromide refrigeration machine. When the filter mechanism needs to be replaced and cleaned, turn the threaded rod, screw the slider with the threaded rod, and drive the sealing cover to move forward and backward through the support rod, so as to achieve convenient disassembly and assembly of the filter mechanism and reliable sealing of the gas collecting tank, ensuring the use effect of the filter mechanism and the service life of the vacuum pump. The overall structure is simple, easy to use, and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic structural diagram from the first perspective of a specific implementation method of the utility model.

[0019] Figure 2 It is a schematic structural diagram of a second viewing angle of a specific implementation method of the utility model.

[0020] Figure 3 It is a cross-sectional schematic diagram of a specific implementation method of the utility model.

[0021] Figure 4 for Figure 3 Schematic diagram of the structure of part A in the middle.

[0022] Figure 5 It is a schematic diagram of the coordination of the gas collecting tank and the sealing cover according to a specific implementation manner of the utility model.

[0023] Figure 6 It is a schematic side view of a filter frame according to a specific implementation mode of the utility model.

[0024] In the accompanying drawings: 1. base, 101. guide groove, 2. gas collecting tank, 201. mounting groove, 3. vacuum pump, 4. support rod, 5. sealing cover, 501. air outlet pipe, 6. delivery pipe, 7. filtering mechanism, 701. limit block, 702. filter frame, 703. connecting rod, 704. drying box, 705. filter plate, 706. slot, 8. threaded rod, 9. slider, 10. drive motor, 11. air inlet pipe, 12. mounting plate, 13. sealing gasket. DETAILED DESCRIPTION

[0025] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0026] like Figure 1-6 As shown, the utility model discloses a vacuum device for a bromide refrigeration machine, comprising a base 1 positioned and installed on the bromide refrigeration machine, a cylindrical shell-shaped gas collecting tank 2 positioned and installed on the base 1 and having an opening at the rear end, and a cylindrical shell-shaped sealing cover 5 (with an opening at the front) capable of sealing and buckling the rear end of the gas collecting tank 2; a filter mechanism 7 is detachably installed inside the rear end opening of the gas collecting tank 2, an air outlet pipe 501 is provided on the sealing cover 5, and a vacuum pump 3 connected to the air outlet pipe 501 is positioned and installed on the base 1; a support rod 4 is connected and installed on the lower side of the sealing cover 5, a threaded rod 8 is rotatably installed on the base 1, and a slider 9 screwed on the threaded rod 8 is connected to the support rod 4. An air inlet pipe 11 connected to the bromide refrigeration machine is connected to the front side of the gas collecting tank 2.

[0027] The vacuum pump 3 is operated to evacuate the bromide refrigerator through the air inlet pipe 11, and the lithium bromide solution, non-condensable waste gas and large particle impurities extracted from the bromide refrigerator are filtered through the filter mechanism 7, so that a good vacuum operation of the bromide refrigerator can be achieved. When the filter mechanism 7 needs to be replaced and cleaned, the threaded rod 8 is rotated, and the slider 9 is screwed to the threaded rod 8, so that the sealing cover 5 is driven to move forward and backward through the support rod 4, so that the filter mechanism 7 can be conveniently disassembled and assembled and the gas collecting tank 2 can be reliably sealed, ensuring the use effect of the filter mechanism 7 and the service life of the vacuum pump 3. The overall structure is simple, easy to use, and has good usability.

[0028] The base 1 is provided with a guide groove 101 capable of slidingly guiding the support rod 4. Two support rods 4 are symmetrically arranged on the left and right sides. The guide groove 101 guides the support rod 4 forward and backward to ensure the stability and accuracy of the forward and backward movement of the sealing cover 5.

[0029] The base 1 is provided with a driving motor 10 which is transmission-connected with the threaded rod 8. The driving motor 10 is a stepping motor or a servo motor, which can accurately control the number of rotations to realize the convenience of moving the sealing cover 5.

[0030] The vacuum pump 3 is connected and installed with the air outlet pipe 501 through the delivery pipe 6 of the hose. The delivery pipe 6 of the hose facilitates the forward and backward movement of the sealing cover 5 and avoids damage to the delivery pipe 6.

[0031] The filter mechanism 7 includes a circular filter frame 702, a filter plate 705 is connected and installed inside the filter frame 702, and a drying box 704 is provided in the middle of the filter plate 705; a mounting groove 201 capable of clamping the filter frame 702 is provided inside the rear end opening of the gas collecting tank 2, and a mounting plate 12 capable of clamping and sealing with the mounting groove 201 and press-fitting the filter frame 702 is provided at one end of the sealing cover 5 close to the gas collecting tank 2. Effective filtering can be achieved through the filter plate 705, and effective drying can be achieved through the drying box 704, so as to prevent the extracted lithium bromide liquid from entering the vacuum pump 3 and ensure the accuracy of the use of the vacuum pump 3. The reliable sealing of the gas collecting tank 2 and the reliability of the installation of the filter mechanism 7 are achieved by plugging and sealing the annular mounting groove 201 with the annular mounting plate 12 and pressing the filter frame 702.

[0032] Among them, a sealing gasket 13 is provided between the rear end of the gas collecting tank 2 and the sealing cover 5, and between the mounting plate 12 and the filter frame 702, so as to ensure a reliable sealing effect and the reliability of vacuuming.

[0033] Among them, a limiting block 701 is provided at an annular interval in front of the installation groove 201, and a slot 706 capable of being engaged with the limiting block 701 is provided in front of the outer ring of the filter frame 702. By engaging the limiting block 701 with the slot 706, the filter mechanism 7 can be accurately positioned and installed, and the filter mechanism 7 can be easily disassembled and assembled.

[0034] A connecting rod 703 capable of supporting the filter plate 705 is positioned and installed inside the filter frame 702. The filter plate 705 is supported by the connecting rod 703, which effectively improves the service strength and life of the filter plate 705 and prevents the filter plate 705 from being deformed.

[0035] The vacuum device of the bromide refrigerator runs the vacuum pump 3, vacuumizes the bromide refrigerator through the air inlet pipe 11, and filters the lithium bromide solution, non-condensable waste gas and large particle impurities extracted from the bromide refrigerator through the filter mechanism 7, so as to achieve good vacuumization of the bromide refrigerator. When the filter mechanism 7 needs to be replaced and cleaned, the threaded rod 8 is rotated, and the slider 9 is screwed to the threaded rod 8, so that the sealing cover 5 is driven to move forward and backward through the support rod 4, so that the filter mechanism 7 can be conveniently disassembled and assembled and the gas collecting tank 2 can be reliably sealed, thereby ensuring the use effect of the filter mechanism 7 and the service life of the vacuum pump 3. The overall structure is simple, easy to use, and has good usability.

[0036] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.

[0037] The terms "upper", "lower", "outer side", "inner side", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish the relative relationship in position if they exist, and do not need to be qualitative. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0038] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A bromide refrigeration machine vacuum device, characterized in that: The invention comprises a base (1), a gas collecting tank (2) which is positioned and mounted on the base (1) and has a rear end opening, and a sealing cover (5) which can be sealed and buckled with the rear end of the gas collecting tank (2); a filtering mechanism (7) is detachably mounted on the inner side of the rear end opening of the gas collecting tank (2); an air outlet pipe (501) is provided on the sealing cover (5); a vacuum pump (3) connected to the air outlet pipe (501) is positioned and mounted on the base (1); a support rod (4) is connected and mounted on the lower side of the sealing cover (5); a threaded rod (8) is rotatably mounted on the base (1); and a slider (9) which is rotatably mounted on the support rod (4) is connected to the support rod (4) and is rotatably mounted on the threaded rod (8).

2. The bromide refrigeration machine vacuum device according to claim 1, characterized in that: The base (1) is provided with a guide groove (101) capable of guiding the support rod (4) to slide.

3. The bromide refrigeration machine vacuum device according to claim 1, characterized in that: A driving motor (10) is mounted on the base (1) and is transmission-connected to the threaded rod (8).

4. The bromide refrigeration machine vacuum device according to claim 1, characterized in that: The vacuum pump (3) is connected and installed to the air outlet pipe (501) via a delivery pipe (6) of a hose.

5. The bromide refrigeration machine vacuum device according to claim 1, characterized in that: The filter mechanism (7) comprises a filter frame (702), a filter plate (705) being connected and mounted on the inner side of the filter frame (702), and a drying box (704) being provided in the middle of the filter plate (705); a mounting groove (201) capable of clamping the filter frame (702) is provided on the inner side of the rear end opening of the gas collecting tank (2), and a mounting plate (12) capable of clamping and sealing with the mounting groove (201) and press-fitting the filter frame (702) is provided at one end of the sealing cover (5) close to the gas collecting tank (2).

6. The bromide refrigerator vacuum device according to claim 5, characterized in that: A sealing gasket (13) is provided between the rear end of the gas collecting tank (2) and the sealing cover (5), and between the mounting plate (12) and the filter frame (702).

7. The vacuum device of bromide refrigerator according to claim 5, characterized in that: A limiting block (701) is provided at an annular interval on the front side of the installation groove (201), and a card slot (706) capable of being engaged with the limiting block (701) is provided on the front side of the outer ring of the filter frame (702).

8. The bromide refrigerator vacuum device according to claim 5, characterized in that: A connecting rod (703) capable of supporting the filter plate (705) is positioned and installed inside the filter frame (702).

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