A screw vacuum pump cooling system and method of use thereof

Abstract

The present application relates to screw vacuum pump cooling protection technical field, disclose a kind of screw vacuum pump cooling system and its using method, comprising the following working steps: first step: three-way pipe fittings is installed on the air inlet of screw vacuum pump, small pipe diameter water pipe is installed on one end of three-way pipe fittings, the other end of three-way pipe fittings is connected with the air inlet of condensate gas-liquid separation tank.Screw vacuum pump normal operation, when the abnormal material produced into screw vacuum pump, the temperature of screw vacuum pump rises to a certain temperature, triggers linkage, automatic time control valve opens small pipe diameter water pipe, small pipe diameter water pipe is watered 30s, then it is closed;Finally realize the temperature reduction of screw vacuum pump body, the water flow injected will be accumulated in screw vacuum pump Organic material flushes out, reaches the dual purpose of cooling and removing organic material, to avoid the problem of screw vacuum pump sustained temperature rise, the damage of pump shaft.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of screw vacuum pump cooling protection, in particular to a screw vacuum pump cooling system and a use method thereof. BACKGROUND

[0002] The screw vacuum pump belongs to a relatively precise device, and in the traditional technology, the screw vacuum pump contains a cooling system, but the cooling is the sealing device at the connection between the motor and the pump shaft, and the screw of the vacuum pump is not cooled. Under normal circumstances, the temperature of the pump body can be maintained within a normal range, but when the screw vacuum pump body enters liquid, the screw vacuum pump body is continuously extruded, so that the temperature will rapidly rise, and the pump shaft is prone to deformation or wear of the protective layer under high temperature. In addition, when the production system is abnormal, organic materials are easily entered, so that the temperature in the screw vacuum pump will also rise, and the screw is also prone to wear or deformation. In view of the above, it is necessary to design a screw vacuum pump cooling system for cooling the vacuum pump.

[0003] The application can effectively solve the problem, and the application is proposed in view of this. SUMMARY

[0004] To solve the above technical problems, the basic idea of the technical scheme adopted by the application is:

[0005] A screw vacuum pump cooling system, the screw vacuum pump is connected with a gas-liquid separation tank A after a condenser, comprising a three-way pipe connected with an air inlet of the screw vacuum pump, a small-diameter water pipe for passing in cooling water and connected with a first interface of the three-way pipe, an automatic time control valve arranged on the small-diameter water pipe, and a timing temperature sensing device arranged on the screw vacuum pump for measuring the temperature of the screw vacuum pump; the timing temperature sensing device is electrically connected with the automatic time control valve, and a second interface of the three-way pipe is connected with a gas outlet of the gas-liquid separation tank A.

[0006] The screw vacuum pump cooling system further comprises a gas-liquid separation tank B connected with an output end of the screw vacuum pump through a pipeline.

[0007] The gas-liquid separation tank B is further connected with a tail gas treatment system and a waste liquid treatment system through a pipeline.

[0008] The size of the small-diameter water pipe is 6-10mm. The small-diameter water pipe can be used for passing in tap water or cooled water to cool the screw vacuum pump.

[0009] The use method of the screw vacuum pump cooling system comprises the following working steps:

[0010] First step: install a tee on the gas inlet of the screw vacuum pump, a small-diameter water pipe is installed on one interface of the tee, and the other interface of the tee is connected with the gas outlet of the condensed gas-liquid separation tank A; an automatic time control valve is installed on the small-diameter water pipe;

[0011] Second step: install a timing temperature sensing device on the screw vacuum pump for measuring the temperature of the screw vacuum pump, and the timing temperature sensing device is electrically connected with the automatic time control valve;

[0012] Third step: when the screw vacuum pump is normally running and the abnormal material in the industrial production process enters the screw vacuum pump, the temperature of the screw vacuum pump rises, when the timing temperature sensing device detects that the temperature of the screw vacuum pump rises to 80 DEG C, a linkage is triggered, the automatic time control valve opens the small-diameter water pipe to inject water into the screw vacuum pump, and the screw vacuum pump is cooled;

[0013] Fourth step: the temperature of the screw vacuum pump decreases, and the injected water flow flushes out the accumulated organic material in the screw vacuum pump;

[0014] Fifth step: the organic material enters the gas-liquid separation tank B for separation, tail gas and waste liquid are separated out, the tail gas enters the tail gas treatment system for treatment, and the waste liquid enters the waste liquid treatment system for treatment.

[0015] The size of the small-diameter water pipe in the first step is 6-10 mm.

[0016] In the third step, the water injection time of the automatic time control valve opening the small-diameter water pipe is 30 s.

[0017] Compared with the prior art, the present application has the following beneficial effects:

[0018] 1. When the screw vacuum pump is normally running and the abnormal material in the production enters the screw vacuum pump, the temperature of the screw vacuum pump rises, when the timing temperature sensing device detects that the temperature of the screw vacuum pump rises to 80 DEG C, a linkage is triggered, the automatic time control valve opens the small-diameter water pipe, the small-diameter water pipe injects water for 30 s, and then is closed; finally, the temperature of the screw vacuum pump body decreases, the injected water flow flushes out the accumulated organic material in the screw vacuum pump, achieves the dual purposes of cooling and removing the organic material, and thus avoids the problem of continuous temperature rise of the screw vacuum pump and damage to the pump shaft.

[0019] The specific embodiments of the present application will be further described in detail in combination with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0020] In the drawings:

[0021] Fig. 1The screw vacuum pump cooling system of the present application is a structural schematic diagram;

[0022] Fig. 2 The screw vacuum pump cooling system of the present application is a flow chart of the use method.

[0023] Label explanation: 1. Screw vacuum pump, 2 gas-liquid separation tank A, 3 three-way pipe fitting, 4 small pipe diameter water pipe, 5 automatic time control valve, 6 timing temperature measurement sensing device, 7 gas-liquid separation tank B, 8 tail gas treatment system, 9 waste liquid treatment system. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments will be described clearly and completely below in combination with the drawings in the embodiments of the present application, and the following embodiments are used to illustrate the present application.

[0025] A screw vacuum pump cooling system, the screw vacuum pump 1 is connected with the gas-liquid separation tank A 2 after the condenser, as shown in Figs. 1-2 The screw vacuum pump cooling system, including the three-way pipe fitting 3 connected with the air inlet of the screw vacuum pump 1, the small pipe diameter water pipe 4 connected with one interface of the three-way pipe fitting 3 and used for passing in cooling water, the automatic time control valve 5 arranged on the small pipe diameter water pipe 4 and the timing temperature measurement sensing device 6 arranged on the screw vacuum pump 1 and used for measuring the temperature of the screw vacuum pump 1; the timing temperature measurement sensing device 6 is electrically connected with the automatic time control valve 5, and the other interface of the three-way pipe fitting 3 is connected with the gas outlet of the gas-liquid separation tank A 2.

[0026] The automatic time control valve is a 2V025-08 two-position two-way electromagnetic valve. The timing temperature measurement sensing device is a temperature control regulator SRS13-8IN-90-P100000.

[0027] The screw vacuum pump 1 is connected with the gas-liquid separation tank A 2 after the condenser, which belongs to the conventional technology in the field. The gas-liquid separation tank A 2 arranged behind the condenser is to prevent the organic liquid in the production process from entering the screw vacuum pump 1. The screw vacuum pump 1 is very afraid of the import with organic liquid. In the conventional technology, the gas-liquid separation tank A 2 after the condenser is connected with the air inlet of the screw vacuum pump 1, and the organic material may enter the vacuum pump. Without the water washing system, it is impossible to realize the wear or deformation of the screw when the screw vacuum pump with high temperature runs.

[0028] The screw vacuum pump cooling system further includes the gas-liquid separation tank B 7 connected with the output end of the screw vacuum pump 1 through a pipeline.

[0029] The gas-liquid separation tank B7 is also connected with a tail gas treatment system 8 and a waste liquid treatment system 9 through pipelines. The tail gas treatment system and the waste liquid treatment system are common systems in the field, and the tail gas treatment system and the waste liquid treatment system are not described here.

[0030] The small-diameter water pipe 4 has a size of 6-10 mm.

[0031] The method for using the screw vacuum pump cooling system comprises the following working steps:

[0032] The first step is that a tee pipe fitting 3 is installed on the air inlet of the screw vacuum pump 1, a small-diameter water pipe 4 is installed on one interface of the tee pipe fitting 3, the other interface of the tee pipe fitting 3 is connected with the gas outlet of the gas-liquid separation tank A2 after the condenser, and the automatic time control valve 5 is installed on the small-diameter water pipe 4.

[0033] The second step is that a timing temperature sensing device 6 for measuring the temperature of the screw vacuum pump 1 is installed on the screw vacuum pump 1, and the timing temperature sensing device 6 is electrically connected with the automatic time control valve 5.

[0034] The third step is that the screw vacuum pump 1 normally operates, when the abnormal materials produced enter the screw vacuum pump 1, the temperature is increased by repeated compression in the screw vacuum pump 1, when the timing temperature sensing device 6 detects that the temperature of the screw vacuum pump 1 is increased to 80 DEG C, the linkage is triggered, and the automatic time control valve 5 is opened to inject water through the small-diameter water pipe 4.

[0035] The fourth step is that the temperature of the screw vacuum pump 1 is reduced, and the injected water flow flushes out the accumulated organic materials in the screw vacuum pump 1.

[0036] The fifth step is that the organic materials enter the gas-liquid separation tank B7 to be separated, tail gas and waste liquid are separated, the tail gas enters the tail gas treatment system 8 for treatment, and the waste liquid enters the waste liquid treatment system 9 for treatment.

[0037] The small-diameter water pipe 4 in the first step has a size of 6-10 mm. Tap water or cooled fluid is introduced into the small-diameter water pipe 4.

[0038] In the third step, the water injection time of the automatic time control valve 5 opening the small-diameter water pipe 4 is 20-30 s.

[0039] It is worth noting that the screw vacuum pump 1 of the present application is suitable for the organic material rectification system in which the screw vacuum pump 1 is used to pull vacuum.

[0040] In use, the screw vacuum pump 1 is normally operated, when the abnormal material produced enters the screw vacuum pump 1, the temperature of the screw vacuum pump 1 is increased, when the time-temperature sensing device 6 detects that the temperature of the screw vacuum pump 1 is increased to 80℃, the linkage is triggered, the automatic time control valve 5 opens the small-diameter water pipe 4, the small-diameter water pipe 4 is filled with water for 30s, and then is closed; finally, the temperature of the screw vacuum pump 1 is reduced, the water flow injected flushes out the organic material accumulated in the screw vacuum pump 1, the double purposes of cooling and removing the organic material are achieved, so that the problem of the pump shaft damage caused by the continuous temperature increase of the screw vacuum pump 1 is avoided.

[0041] It can be understood that the present application is described by some embodiments, and those skilled in the art know that various changes or equivalent replacements can be made to the features and embodiments without departing from the spirit and scope of the present application. In addition, under the guidance of the present application, the features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the present application. Therefore, the present application is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application are within the scope of the present application.

Claims

1. A screw vacuum pump cooling system, wherein the screw vacuum pump (1) is connected to a gas-liquid separator A (2) after the condenser, characterized in that: It includes a three-way fitting (3) connected to the air inlet of the screw vacuum pump (1), a small-diameter water pipe (4) connected to one interface of the three-way fitting (3) for introducing cooling water, an automatic time control valve (5) installed on the small-diameter water pipe (4), and a timing and temperature sensing device (6) installed on the screw vacuum pump (1) for measuring the temperature of the screw vacuum pump (1); the timing and temperature sensing device (6) is electrically connected to the automatic time control valve (5), and the other interface of the three-way fitting (3) is connected to the air outlet of the gas-liquid separator A (2); The screw vacuum pump cooling system also includes a gas-liquid separator B (7) connected to the output end of the screw vacuum pump (1) via a pipeline. The gas-liquid separator B (7) is also connected to the tail gas treatment system (8) and the waste liquid treatment system (9) via pipelines. The small-diameter water pipe (4) has a size of 6-10mm.

2. A method of using a screw vacuum pump cooling system, characterized in that, The work includes the following steps: Step 1: Install a three-way fitting (3) on the air inlet of the screw vacuum pump (1). A small-diameter water pipe (4) is installed on one interface of the three-way fitting (3). The other interface of the three-way fitting (3) is connected to the air outlet of the condensed gas-liquid separator A (2). An automatic time control valve (5) is installed on the small-diameter water pipe (4). Step 2: A timing temperature sensing device (6) for measuring the temperature of the screw vacuum pump (1) is installed on the screw vacuum pump (1). The timing temperature sensing device (6) is electrically connected to the automatic time control valve (5). Step 3: The screw vacuum pump (1) is running normally. When abnormal materials in the industrial production process enter the screw vacuum pump (1), the temperature of the screw vacuum pump (1) rises. When the timing and temperature sensing device (6) detects that the temperature of the screw vacuum pump (1) has risen to 80°C, it triggers the linkage and the automatic time control valve (5) opens the small diameter water pipe (4) to introduce water into the screw vacuum pump (1) to cool it. Step 4: As the temperature of the screw vacuum pump (1) decreases, the injected water flow flushes out the organic material accumulated inside the screw vacuum pump (1); Step 5: Organic materials enter the gas-liquid separator B (7) for separation, separating tail gas and waste liquid. The tail gas enters the tail gas treatment system (8) for treatment, and the waste liquid enters the waste liquid treatment system (9) for treatment.

3. The method of using the screw vacuum pump cooling system according to claim 2, characterized in that, The small-diameter water pipe (4) in the first step has a size of 6-10mm.

4. The method of using the cooling system of the screw vacuum pump (1) according to claim 2, characterized in that, In the third step, the automatic time control valve (5) opens the small-diameter water pipe (4) for 30 seconds to allow water to enter.

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