Coil pipe cleaning device for white oil tank

Abstract

The utility model relates to a white oil tank coil cleaning device which comprises a moving trolley and a neutralizing pool, a cleaning box and a pneumatic centrifugal pump are installed on the moving trolley, acid cleaning liquid is contained in the cleaning box, a liquid inlet of the pneumatic centrifugal pump is communicated with the interior of the cleaning box through a liquid inlet pipe, and a liquid outlet of the pneumatic centrifugal pump is communicated with a liquid outlet hose. A backflow hose is communicated with the side wall of the cleaning box, a storage box is installed on the side wall of the cleaning box, a protective mask and protective gloves are placed in the storage box, and an alkaline solution is contained in the neutralization pool; according to the utility model, the acidic cleaning liquid can circularly flow in the coil pipe, and the acidic cleaning liquid can dissolve and clean scaling substances on the inner wall of the coil pipe, so that the scaling substances on the inner wall of the coil pipe are effectively cleaned, the heat exchange effect of the coil pipe is improved, and the service life of the mechanical seal is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of white oil tank cleaning, in particular to a white oil tank coil cleaning device. Background Art

[0002] The heat exchanger for the mechanical seal flushing oil of the chemical pump is commonly known as the "white oil tank". It plays a very important role in the operation of the mechanical seal. The heat exchange effect of the coil inside the white oil tank directly affects the service life of the mechanical seal.

[0003] In the long-term operation of the existing pump white oil tank, the circulating water will precipitate water-soluble calcium carbonate and magnesium carbonate generated by carbon dioxide under the action of high temperature. Since calcium carbonate and magnesium carbonate become increasingly difficult to dissolve with the increase of temperature, they will eventually deposit on the inner wall of the coil to form scaling substances. However, due to the compact internal structure of the white oil tank, it is impossible to manually clean the scaling substances inside the coil, which reduces the heat exchange effect of the coil and shortens the service life of the mechanical seal. Utility Model Content

[0004] The purpose of the utility model is to design a white oil tank coil cleaning device so as to solve the problems mentioned in the background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A white oil tank coil cleaning device comprises a mobile trolley and a neutralization tank, wherein a cleaning box and a pneumatic centrifugal pump are installed on the mobile trolley, the cleaning box is filled with acidic cleaning liquid, the liquid inlet of the pneumatic centrifugal pump is connected with the interior of the cleaning box through a liquid inlet pipe, the liquid outlet of the pneumatic centrifugal pump is connected with a liquid outlet hose, the side wall of the cleaning box is connected with a reflux hose, a storage box is installed on the side wall of the cleaning box, a protective mask and protective gloves are placed in the storage box, and an alkaline solution is contained in the neutralization tank.

[0007] Furthermore, the mobile trolley includes a bottom plate, and self-locking universal wheels are installed at the four bottom corners of the bottom plate, and the cleaning box and the pneumatic centrifugal pump are installed on the top of the bottom plate.

[0008] Furthermore, an air source pressure reducing valve and an air source control valve which are interconnected are installed on the side wall of the cleaning box, the air inlet of the air source pressure reducing valve is connected to the air compressor, and the air outlet of the air source control valve is connected to the pneumatic centrifugal pump through an air pipe.

[0009] Furthermore, the air source pressure reducing valve is connected to a pressure gauge.

[0010] Furthermore, a first manual valve and a second manual valve are installed on the liquid inlet pipe and the return hose respectively.

[0011] Furthermore, a handle is installed on the side wall of the cleaning box.

[0012] Furthermore, the acidic cleaning solution is a 1 mol / L hydrochloric acid solution.

[0013] Furthermore, a cover is hinged on the top of the cleaning box.

[0014] The beneficial effects of the utility model are:

[0015] The liquid outlet of the liquid outlet hose is installed and connected to the coil inlet at the bottom of the white oil tank, and the liquid inlet of the reflux hose is installed and connected to the coil outlet at the bottom of the white oil tank. The acid cleaning liquid in the cleaning box is pumped into the interior of the coil by a pneumatic centrifugal pump, and the acid cleaning liquid is allowed to circulate inside the coil. The acid cleaning liquid will dissolve and clean the scaling substances on the inner wall of the coil, effectively cleaning the scaling substances on the inner wall of the coil, thereby improving the heat exchange effect of the coil and extending the service life of the mechanical seal; the alkaline solution in the neutralization tank can neutralize the refluxed acid cleaning liquid to avoid environmental pollution; during the use of the cleaning device, workers wear protective masks and protective gloves to effectively prevent human skin from being corroded by the acid cleaning liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below 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.

[0017] Figure 1 It is a structural schematic diagram of the utility model.

[0018] The names of the components marked in the figure are as follows:

[0019] 1. Cleaning box; 2. Pneumatic centrifugal pump; 3. Sealing cover; 4. Liquid inlet pipe; 5. Liquid outlet hose; 6. Return hose; 7. Storage box; 8. Neutralization tank; 9. Bottom plate; 10. Self-locking universal wheel; 11. Air source pressure reducing valve; 12. Air source control valve; 13. Air pipe; 14. Pressure gauge; 15. First manual valve; 16. Second manual valve; 17. Handle; 18. White oil tank. DETAILED DESCRIPTION

[0020] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0021] like Figure 1 As shown, a white oil tank coil cleaning device comprises a bottom plate 9 and a neutralization tank 8, a cleaning box 1 and a pneumatic centrifugal pump 2 are installed on the top of the bottom plate 9, and self-locking universal wheels 10 are installed at the four corners of the bottom of the bottom plate 9, which are convenient for transferring and using the cleaning device and increase practicality; the cleaning box 1 is filled with a 1 mol / L hydrochloric acid solution, and a cover 3 is hinged on the top of the cleaning box 1, which has the function of sealing the cleaning box 1, and can prevent the hydrochloric acid solution from splashing out when it flows and polluting the environment; the liquid inlet of the pneumatic centrifugal pump 2 is connected to the inside of the cleaning box 1 through a liquid inlet pipe 4, and the liquid outlet of the pneumatic centrifugal pump 2 is connected to a liquid outlet hose 5, and the side wall of the cleaning box 1 is connected to a reflux pipe 5. The hose 6, the liquid inlet pipe 4 and the return hose 6 are respectively installed with a first manual valve 15 and a second manual valve 16, the liquid outlet of the liquid outlet hose 5 is installed and connected with the coil inlet at the bottom of the white oil tank 18, and the liquid inlet of the return hose 6 is installed and connected with the coil outlet at the bottom of the white oil tank 18, the first manual valve 15 and the second manual valve 16 are manually opened, and the pneumatic centrifugal pump 2 is started, and the hydrochloric acid solution in the cleaning tank 1 is pumped into the interior of the coil through the pneumatic centrifugal pump 2, so that the hydrochloric acid solution circulates inside the coil, and the hydrochloric acid solution will dissolve and clean the scaling substances on the inner wall of the coil, and effectively clean the scaling substances on the inner wall of the coil;

[0022] A storage box 7, an air source pressure reducing valve 11, an air source control valve 12 and a handle 17 are installed on the side wall of the cleaning box 1. A protective mask and protective gloves are placed in the storage box 7. When the cleaning device is in use, workers wear protective masks and protective gloves to effectively prevent human skin from being corroded by the hydrochloric acid solution; the air source pressure reducing valve 11 and the air source control valve 12 are connected to each other, the air inlet of the air source pressure reducing valve 11 is connected to the air compressor, the air source pressure reducing valve 11 is connected to the air pressure gauge 14, and the air outlet of the air source control valve 12 is connected to the pneumatic centrifugal pump 2 through the air pipe 13. The air source control valve 12 is opened, and the pressure value of the air compressor entering the pneumatic centrifugal pump 2 is adjusted through the air source pressure reducing valve 11; the neutralization tank 8 is filled with an alkaline solution, which can neutralize the refluxed acidic cleaning liquid to avoid polluting the environment.

[0023] Working principle:

[0024] like Figure 1As shown, when the cleaning device is in use, the worker first pulls the mobile trolley to the position corresponding to the white oil tank 18 by the handle 17, then wears a protective mask and protective gloves, and then installs and connects the liquid outlet of the liquid outlet hose 5 with the coil inlet at the bottom of the white oil tank 18, and installs and connects the liquid inlet of the reflux hose 6 with the coil outlet at the bottom of the white oil tank 18, opens the first manual valve 15, the second manual valve 16, the air source control valve 12 and the air compressor, and adjusts the air source pressure of the air compressor entering the pneumatic centrifugal pump 2 to 0.6MPa through the air source pressure reducing valve 11, and starts the pneumatic centrifugal pump 2. The pneumatic centrifugal pump 2 draws the hydrochloric acid solution in the cleaning tank 1 into the interior of the coil, and allows the hydrochloric acid solution to circulate inside the coil. The hydrochloric acid solution will dissolve and clean the scaling substances on the inner wall of the coil, effectively clean the calcium carbonate and magnesium carbonate inside the coil, and improve the heat exchange effect of the white oil tank 18. The scale substances cleaned out will flow back to the cleaning tank 1 with the hydrochloric acid solution;

[0025] When the coil cleaning is completed, close the first manual valve 15, the second manual valve 16, the air source control valve 12, the air compressor and the pneumatic centrifugal pump 2, then pull the mobile cart with the handle 17 to move it to the corresponding position of the neutralization tank 8, then put the liquid outlet of the liquid outlet hose 5 into the neutralization tank 8, open the first manual valve 15, the air source control valve 12 and the air compressor, adjust the air source pressure of the air compressor entering the pneumatic centrifugal pump 2 to 0.6MPa through the air source pressure reducing valve 11, start the pneumatic centrifugal pump 2, and the pneumatic centrifugal pump 2 will pump the acidic mixed liquid in the cleaning tank 1 into the neutralization tank 8, so that the acidic mixed liquid and the alkaline solution are neutralized.

[0026] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A white oil tank coil cleaning device, characterized in that: The invention comprises a mobile trolley and a neutralization tank (8). A cleaning box (1) and a pneumatic centrifugal pump (2) are installed on the mobile trolley. The cleaning box (1) contains an acidic cleaning liquid. The liquid inlet of the pneumatic centrifugal pump (2) is connected to the inside of the cleaning box (1) through a liquid inlet pipe (4). The liquid outlet of the pneumatic centrifugal pump (2) is connected to a liquid outlet hose (5). The side wall of the cleaning box (1) is connected to a reflux hose (6). A storage box (7) is installed on the side wall of the cleaning box (1). A protective mask and protective gloves are placed in the storage box (7). The neutralization tank (8) contains an alkaline solution.

2. The white oil tank coil cleaning device according to claim 1, characterized in that: The mobile trolley comprises a bottom plate (9), the four bottom corners of which are all provided with self-locking universal wheels (10), and a cleaning box (1) and a pneumatic centrifugal pump (2) are installed on the top of the bottom plate (9).

3. The white oil tank coil cleaning device according to claim 1, characterized in that: An air source pressure reducing valve (11) and an air source control valve (12) which are connected to each other are installed on the side wall of the cleaning box (1). The air inlet of the air source pressure reducing valve (11) is connected to an air compressor, and the air outlet of the air source control valve (12) is connected to a pneumatic centrifugal pump (2) through an air pipe (13).

4. The white oil tank coil cleaning device according to claim 3, characterized in that: The air source pressure reducing valve (11) is connected to a pressure gauge (14).

5. The white oil tank coil cleaning device according to claim 1, characterized in that: A first manual valve (15) and a second manual valve (16) are respectively installed on the liquid inlet pipe (4) and the return hose (6).

6. The white oil tank coil cleaning device according to claim 1, characterized in that: A handle (17) is installed on the side wall of the cleaning box (1).

7. The white oil tank coil cleaning device according to claim 1, characterized in that: The acid cleaning solution is 1 mol / L hydrochloric acid solution.

8. The white oil tank coil cleaning device according to claim 1, characterized in that: A cover (3) is hinged on the top of the cleaning box (1).

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