Filtering type heat exchanger for liquid ring pump

Abstract

The utility model relates to the field of vacuum unit equipment, and discloses a filter type heat exchanger for a liquid ring pump, which comprises a heat exchanger main body, a mounting cylinder, a filter cylinder, a filter cylinder sealing cover, a pipeline I, a movable joint, a liquid inlet pipe and a pipeline II. In the operation process of the liquid ring pump, the effect of filtering impurities doped in circulating liquid can be achieved, the impurities are prevented from entering a pump cavity of the liquid ring pump, negative influences on the liquid ring pump are avoided, and therefore the service life of the liquid ring pump is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of vacuum unit equipment, in particular to a filtering heat exchanger for a liquid ring pump. Background Art

[0002] Vacuum units are widely used and mainly used to provide high vacuum for rectification and distillation equipment. A liquid ring vacuum unit is composed of a Roots pump as the main pump and a liquid ring pump as the fore pump connected in series. The liquid ring pump uses liquid as the circulating medium to pump vacuum, and it needs to dissipate heat from the liquid during operation.

[0003] In the prior art, the liquid is usually introduced into a shell-and-tube heat exchanger for heat dissipation. Since impurities will be generated during the operation of the liquid ring pump and the shell-and-tube heat exchanger does not have the function of filtering impurities, the impurities will enter the pump cavity of the liquid ring pump, damaging the pump cavity rotor and having a negative impact on the performance of the liquid ring pump. Summary of the Utility Model

[0004] Based on the above problems, the purpose of the utility model is to provide a filtering heat exchanger for a liquid ring pump to solve the problems existing in the above prior art.

[0005] The utility model adopts the following technical solutions:

[0006] The utility model provides a filtering heat exchanger for a liquid ring pump, including:

[0007] A heat exchanger main body, an installation cylinder is arranged inside the heat exchanger main body, a filter cylinder is arranged in the installation cylinder, the top of the filter cylinder is detachably connected with a filter cylinder cover, and the filter cylinder cover is detachably and sealingly connected to the top surface of the installation cylinder;

[0008] A pipeline one, one end of the pipeline one is located outside the heat exchanger main body, and the other end is hermetically penetrated into the heat exchanger main body and connected with a liquid inlet pipe through a union joint. The end of the liquid inlet pipe sequentially penetrates through the installation cylinder and the filter cylinder and extends into the filter cylinder, and the liquid inlet pipe is movably and sealingly connected with the installation cylinder and the filter cylinder respectively;

[0009] A pipeline two, one end of the pipeline two is communicated with the installation cylinder, and the other end is hermetically penetrated to the outside of the heat exchanger main body.

[0010] Furthermore, installation holes are arranged at the tops of the installation cylinder and the filter cylinder, an elastic sealing ring one is connected to the hole wall of the installation hole, and the liquid inlet pipe is movably and sealingly connected with the installation cylinder and the filter cylinder respectively through the installation hole and the elastic sealing ring one.

[0011] Furthermore, the heat exchanger body includes a heat exchange cylinder. A cooling water inlet pipe is provided at the bottom of one side of the heat exchange cylinder, and a cooling water outlet pipe is provided at the top of the other side. The heat exchanger cover is detachably connected to the top of the heat exchange cylinder.

[0012] Furthermore, a base is connected to the inner bottom wall of the heat exchange cylinder, and the installation cylinder is connected to the base.

[0013] Furthermore, a plurality of legs are connected to the outer bottom wall of the heat exchange cylinder.

[0014] Furthermore, a discharge pipe is connected to the bottom of the heat exchange cylinder, and a plug is threadedly connected to the bottom of the discharge pipe.

[0015] Compared with the prior art, the beneficial technical effects of the present utility model are as follows:

[0016] By providing pipeline 1, a union, a liquid inlet pipe, a filter cylinder, an installation cylinder and pipeline 2, the present utility model can filter impurities doped in the circulating liquid during the operation of the liquid ring pump, avoiding impurities from entering the pump chamber of the liquid ring pump and having a negative impact on the liquid ring pump, thereby improving the service life of the liquid ring pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present utility model will be further described below with reference to the drawings.

[0018] Figure 1 It is a schematic structural diagram of the filter type heat exchanger for the liquid ring pump of the present utility model.

[0019] Description of the reference numerals: 1. Heat exchanger body; 101. Heat exchange cylinder; 102. Cooling water inlet pipe; 103. Cooling water outlet pipe; 104. Heat exchanger cover; 105. Base; 106. Legs; 107. Discharge pipe; 108. Plug; 2. Installation cylinder; 3. Filter cylinder; 301. Annular flange; 4. Filter cylinder cover; 5. Pipeline 1; 6. Liquid inlet pipe; 7. Pipeline 2; 8. Union. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings and embodiments.

[0021] As Figure 1As shown in the figure, a filter heat exchanger for a liquid ring pump is disclosed in this embodiment, which includes a heat exchanger main body 1. An installation cylinder 2 is arranged inside the heat exchanger main body 1. A filter cylinder 3 is arranged in the installation cylinder 2. The top of the filter cylinder 3 is detachably connected with a filter cylinder cover 4, and the filter cylinder cover 4 is detachably and sealingly connected to the top surface of the installation cylinder 2. One end of a pipeline 5 is located outside the heat exchanger main body 1, and the other end penetrates into the heat exchanger main body 1 in a sealed manner and is connected with a liquid inlet pipe 6 through a union 8. The end of the liquid inlet pipe 6 sequentially penetrates through the installation cylinder 2 and the filter cylinder 3 and extends into the filter cylinder 3, and the liquid inlet pipe 6 is movably and sealingly connected to the installation cylinder 2 and the filter cylinder 3 respectively. One end of a pipeline 7 is communicated with the installation cylinder 2, and the other end penetrates to the outside of the heat exchanger main body 1 in a sealed manner.

[0022] In this embodiment, one end of the pipeline 5 located outside the heat exchanger main body 1 is connected to the circulating liquid outlet of the liquid ring pump, and one end of the pipeline 7 located outside the heat exchanger main body 1 is connected to the circulating liquid inlet of the liquid ring pump. The union 8 is set as a threaded union, and its two ends are respectively threadedly and sealingly connected to the pipeline 5 and the liquid inlet pipe 6.

[0023] During the operation of the liquid ring pump, its circulating liquid enters the inside of the filter cylinder 3 through the pipeline 5, the union 8 and the liquid inlet pipe 6. The filter cylinder 3 filters the impurities doped in the circulating liquid. The filtered circulating liquid enters the installation cylinder 2 and flows back to the liquid ring pump through the pipeline 7.

[0024] Adopting this solution, through the setting of the above structure, the effect of filtering the impurities doped in the circulating liquid can be realized during the operation of the liquid ring pump, avoiding the impurities from entering the pump chamber of the liquid ring pump and bringing negative effects to the liquid ring pump, thereby improving the service life of the liquid ring pump.

[0025] In a further optimized solution, mounting holes are provided on the top side walls of the installation cylinder 2 and the filter cylinder 3. An elastic sealing ring I is fixedly connected to the peripheral side of the hole wall of the mounting hole. The liquid inlet pipe 6 is movably and sealingly connected to the installation cylinder 2 and the filter cylinder 3 through the mounting hole and the elastic sealing ring I respectively. The provided mounting hole and the elastic sealing ring I ensure the sealed connection between the liquid inlet pipe 6 and the installation cylinder 2 and the filter cylinder 3, and enable the liquid inlet pipe 6 to be disassembled.

[0026] In a further optimized solution, an elastic sealing ring II is fixed to the bottom edge of the filter cylinder cover 4. The filter cylinder cover 4 is sealingly connected to the installation cylinder 2 through the elastic sealing ring II, and the filter cylinder cover 4 and the installation cylinder 2 are detachably connected by means of bolt connection.

[0027] For a further optimized solution, an outward-turned annular flange 301 is fixed to the outer periphery of the top of the filter cartridge 3. An elastic sealing ring III is fixed to the top surface of the annular flange 301. The filter cartridge 3 is hermetically connected to the bottom surface of the filter cartridge cover 4 through the annular flange 301 and the elastic sealing ring III, and the annular flange 301 and the bottom surface of the filter cartridge cover 4 are detachably connected by means of bolt connection.

[0028] For a further optimized solution, the heat exchanger main body 1 includes a heat exchange cylinder 101. A cooling water inlet pipe 102 is fixedly communicated with the bottom of one side of the heat exchange cylinder 101, and a cooling water outlet pipe 103 is fixedly communicated with the top of the other side. A heat exchanger cover 104 is detachably connected to the top of the heat exchange cylinder 101.

[0029] In this embodiment, the cooling water inlet pipe 102 and the cooling water outlet pipe 103 are respectively connected to the cooling water circulation system. The cooling water circulation system introduces the cooling water into the heat exchange cylinder 101 through the cooling water inlet pipe 102 to cool the circulating liquid of the liquid ring pump. After the heat-exchanged cooling water flows back to the cooling water circulation system through the cooling water outlet pipe 103 for cooling treatment, it is introduced into the heat exchange cylinder 101 again. It should be noted that the cooling water circulation system is a prior art.

[0030] For a further optimized solution, an elastic sealing ring IV is fixed to the bottom edge of the heat exchanger cover 104. The heat exchanger cover 104 is hermetically connected to the heat exchange cylinder 101 through the elastic sealing ring IV; and the heat exchanger cover 104 and the heat exchange cylinder 101 are detachably connected by means of bolt connection.

[0031] For a further optimized solution, a base 105 is fixedly connected to the inner bottom wall of the heat exchange cylinder 101, and the installation cylinder 2 is connected to the base 105. In this embodiment, a groove is provided on the top surface of the base 105, and the bottom of the installation cylinder 2 extends into the groove and is fixedly connected to the base 105; one end of the pipeline II 7 penetrates through the base 105 and extends into the groove, and the pipeline II 7 is fixedly communicated with the bottom of the installation cylinder 2.

[0032] For a further optimized solution, a plurality of legs 106 are fixedly connected to the outer bottom wall of the heat exchange cylinder 101; a discharge pipe 107 is fixedly communicated with the bottom of the heat exchange cylinder 101, and a plug 108 is threadedly connected to the bottom of the discharge pipe 107. The legs 106 provided facilitate the support of the present utility model; the position of the discharge pipe 107 is staggered from that of the base 105. Through the discharge pipe 107 and the plug 108 provided, the cooling water in the heat exchange cylinder 101 can be discharged.

[0033] For a further optimized solution, handles are fixed to the top surfaces of the heat exchanger cover 104 and the filter cartridge cover 4. The handles provided facilitate the picking and placing of the heat exchanger cover 104 and the filter cartridge cover 4.

[0034] In the present utility model, when it is necessary to clean the impurities in the filter cartridge 3, first stop the operation of the liquid ring pump, cut off the circulation of the circulating liquid and the cooling water, open the plug 108, and drain the cooling water in the heat exchange cylinder 101; then open the heat exchanger cover 104, remove the union joint 8, then remove the liquid inlet pipe 6, then open the filter cartridge cover 4, lift out the filter cartridge 3 together, and then remove the filter cartridge 3, and then the impurities inside the filter cartridge 3 can be cleaned up.

[0035] The embodiments described above are only descriptions of the preferred modes of the present utility model, and do not limit the scope of the present utility model. Without departing from the design spirit of the present utility model, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present utility model shall fall within the protection scope determined by the claims of the present utility model.

Claims

1. A filter type heat exchanger for a liquid ring pump, characterized in that: Comprising: A heat exchanger main body (1), an installation cylinder (2) is arranged inside the heat exchanger main body (1), a filter cylinder (3) is arranged in the installation cylinder (2), a filter cylinder cover (4) is detachably connected to the top of the filter cylinder (3), and the filter cylinder cover (4) is detachably and sealingly connected to the top surface of the installation cylinder (2); A first pipeline (5), one end of the first pipeline (5) is located outside the heat exchanger main body (1), the other end penetrates through the heat exchanger main body (1) in a sealed manner and is connected to a liquid inlet pipe (6) through a union joint (8), the end of the liquid inlet pipe (6) sequentially penetrates through the installation cylinder (2) and the filter cylinder (3) and extends into the filter cylinder (3), and the liquid inlet pipe (6) is movably and sealingly connected to the installation cylinder (2) and the filter cylinder (3) respectively; A second pipeline (7), one end of the second pipeline (7) is communicated with the installation cylinder (2), and the other end penetrates through the heat exchanger main body (1) in a sealed manner to the outside.

2. The filter heat exchanger for a liquid ring pump according to claim 1, characterized in that: Installation holes are provided at the tops of the installation cylinder (2) and the filter cylinder (3), an elastic sealing ring I is connected to the hole wall of the installation hole, and the liquid inlet pipe (6) is movably and sealingly connected to the installation cylinder (2) and the filter cylinder (3) respectively through the installation hole and the elastic sealing ring I.

3. The filter heat exchanger for a liquid ring pump according to claim 1, characterized in that: The heat exchanger main body (1) includes a heat exchange cylinder (101), a cooling water inlet pipe (102) is provided at the bottom of one side of the heat exchange cylinder (101), and a cooling water outlet pipe (103) is provided at the top of the other side; a heat exchanger cover (104) is detachably connected to the top of the heat exchange cylinder (101).

4. The filter type heat exchanger for a liquid ring pump according to claim 3, characterized in that: A base (105) is connected to the inner bottom wall of the heat exchange cylinder (101), and the installation cylinder (2) is connected to the base (105).

5. The filter heat exchanger for a liquid ring pump according to claim 3, wherein: A plurality of legs (106) are connected to the outer bottom wall of the heat exchange cylinder (101).

6. The filter type heat exchanger for a liquid ring pump according to claim 5, wherein: A discharge pipe (107) is connected to the bottom of the heat exchange cylinder (101), and a plug (108) is threadedly connected to the bottom of the discharge pipe (107).

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