Device for cleaning cooling coil of reduction gearbox of reaction kettle on line

Abstract

The utility model discloses a device for online cleaning a cooling coil of a reduction gearbox of a reaction kettle, which belongs to the technical field of cleaning equipment and comprises a medicament circulating device, the medicament circulating device comprises a circulating pump, a liquid storage tank and a reduction gearbox, the liquid storage tank is respectively communicated with the circulating pump and the reduction gearbox, the circulating pump is communicated with the liquid storage tank, and the reduction gearbox is communicated with the liquid storage tank. And the circulating pump and the liquid storage tank are mounted on the moving trolley. According to the circulating pump and the liquid storage tank, when the wall of the coil pipe in the reduction gearbox is scaled, a weak acid solution with a low temperature replaces chilled water to cool the reduction gearbox, and scales on the inner wall of the coil pipe in the reduction gearbox are gradually dissolved, so that the reduction gearbox does not need to be temporarily stopped to be maintained, time and labor are saved, and the working efficiency is improved. The production efficiency of enterprises is prevented from being reduced, and high practical value is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of cleaning equipment, and particularly relates to a device for online cleaning of a cooling coil of a reduction gearbox of a reaction kettle. Background Art

[0002] During the polyester production process, the reduction gearbox of the polyester reaction kettle needs to be cooled with chilled water. The chilled water passes through the coil to cool the lubricating oil of the reduction gearbox. After a long time, the chilled water will scale the inner wall of the coil with a smaller diameter, affecting the flow rate of the chilled water, and then affecting heat exchange. Eventually, the equipment will be damaged, and the reduction gearbox of the reaction kettle cannot be stopped for maintenance temporarily, resulting in the risk of production shutdown. Summary of the Utility Model

[0003] In view of the problems raised in the background art, the utility model researches and designs a device for online cleaning of a cooling coil of a reduction gearbox of a reaction kettle to solve the problem that the long-term use of chilled water in the prior art scales the coil of the reduction gearbox and affects the continuous use of the reduction gearbox.

[0004] The technical solution of the utility model:

[0005] A device for online cleaning of a cooling coil of a reduction gearbox of a reaction kettle includes a chemical agent circulation device. The chemical agent circulation device includes a circulation pump, a liquid storage tank, and a reduction gearbox. The liquid storage tank is respectively communicated with the circulation pump and the reduction gearbox. The circulation pump is communicated with the liquid storage tank, and both the circulation pump and the liquid storage tank are installed on a trolley.

[0006] Preferably, the liquid storage tank is horizontally fixed on the upper surface of the trolley through a bracket.

[0007] Preferably, a pre-pump valve and a pump outlet valve are respectively installed at the inlet and outlet positions of the circulation pump.

[0008] Preferably, a first chilled water coil is arranged in the reduction gearbox. The first chilled water coil inlet on the first chilled water coil is communicated with the circulation pump through a pump outlet metal hose, and the first chilled water coil outlet on the first chilled water coil is communicated with the liquid storage tank through a pump inlet metal hose.

[0009] Preferably, the liquid storage tank is a liquid storage tank with an open top.

[0010] Preferably, a second chilled water coil is arranged in the liquid storage tank.

[0011] Preferably, the inlet and outlet of the second chilled water coil are respectively connected to the outlet of the chilled water main pipe and the water return port.

[0012] Preferably, an industrial-grade dilute citric acid solution and a slow-release agent medicine are injected into the liquid storage tank.

[0013] Advantages of the present utility model: The structure of the present utility model is reasonable and novel in design. The circulating pump and the liquid storage tank are provided, so that when the inner wall of the coil pipe in the reduction gearbox is scaled, a weak acid solution with a lower temperature is used to replace the chilled water to cool the reduction gearbox, and the scale on the inner wall of the coil pipe in the reduction gearbox is gradually dissolved. There is no need to temporarily stop the reduction gearbox for maintenance, which saves time and effort, and at the same time avoids reducing the production efficiency of the enterprise, and has high practical value. Description of the Drawings

[0014] Figure 1 Schematic structural diagram of the present utility model.

[0015] Wherein: 1. Circulating pump, 1-1. Valve before the pump, 1-2. Valve at the pump outlet, 2. Liquid storage tank, 3. Reduction gearbox, 4. Mobile trolley, 5. Bracket, 6. First chilled water coil pipe, 6-1. Inlet of the first chilled water coil pipe, 6-2. Outlet of the first chilled water coil pipe, 7. Metal hose at the pump outlet, 8. Metal hose at the pump inlet, 9. Second chilled water coil pipe, 9-1. Inlet of the second chilled water coil pipe, 9-2. Outlet of the second chilled water coil pipe. Specific Embodiments

[0016] The present utility model will be further described below in conjunction with the embodiments of the drawings.

[0017] As Figure 1 shown, a device for online cleaning of the cooling coil pipe of a reduction gearbox of a reaction kettle includes a chemical agent circulation device, and the chemical agent circulation device includes a circulating pump 1, a liquid storage tank 2, and a reduction gearbox 3. The liquid storage tank 2 is respectively communicated with the circulating pump 1 and the reduction gearbox 3. The circulating pump 1 is communicated with the liquid storage tank 2, and both the circulating pump 1 and the liquid storage tank 2 are installed on the mobile trolley 4.

[0018] In this embodiment, the liquid storage tank 2 is horizontally fixed on the upper surface of the mobile trolley 4 through the bracket 5.

[0019] In this embodiment, a valve 1-1 before the pump and a valve 1-2 at the pump outlet are respectively installed at the inlet and outlet positions of the circulating pump 1.

[0020] In this embodiment, a first chilled water coil pipe 6 is arranged in the reduction gearbox 3. The inlet 6-1 of the first chilled water coil pipe 6 on the first chilled water coil pipe 6 is communicated with the circulating pump 1 through the metal hose 7 at the pump outlet, and the outlet 6-2 of the first chilled water coil pipe 6 on the first chilled water coil pipe 6 is connected with the liquid storage tank 2 through the metal hose 8 at the pump inlet.

[0021] In this embodiment, the liquid storage tank 2 is a liquid storage tank 2 with an open top.

[0022] In this embodiment, a second chilled water coil pipe 9 is arranged in the liquid storage tank 2, and the second chilled water coil pipe 9 is relatively large.

[0023] In this embodiment, the water inlet 9-1 and the water outlet 9-2 on the second chilled water coil 9 are respectively connected to the water outlet of the chilled water main pipe (not marked in the figure) and the water return port (not marked in the figure).

[0024] In this embodiment, an industrial-grade dilute citric acid solution and a slow-release agent drug are injected into the liquid storage tank 2.

[0025] Specific usage process: When the speed reducer 3 detects an increase in temperature, it indicates that there is scale formation on the first chilled water coil 6 inside the speed reducer 3. Move the mobile trolley 4 fixed with the circulation pump 1 and the liquid storage tank 2 to a position near the speed reducer that is convenient for operation. Add 200 kilograms of industrial-grade citric acid solution to the liquid storage tank 2 to prepare a weak acid dilute solution. Connect the water inlet 9-1 and the water outlet 9-2 of the second chilled water coil 9 inside the liquid storage tank 2 to the water outlet of the chilled water main pipe (not marked in the figure) and the water inlet (not marked in the figure) respectively. Connect the second chilled water coil 9 to the chilled water and keep it circulating to lower the temperature of the weak acid solution. Connect one end of the metal hose 7 with a flange at the pump outlet to the flange of the water inlet 6-1 of the first chilled water coil of the speed reducer 3, and the other end to the valve 1-2 at the pump outlet of the circulation pump 1. Connect one end of the metal hose 8 with a flange at the pump inlet to the water outlet 6-2 of the first chilled water coil of the speed reducer 3, and the other end to the liquid storage tank 2. Start the circulation pump 1 for circulation, and select a circulation time of more than 10 hours. Let the weak acid solution with a lower temperature replace the chilled water to cool the speed reducer 3, and gradually dissolve the scale on the inner wall of the first chilled water coil 6 inside the speed reducer 3. The circulation pump, liquid storage tank, etc. set in the present utility model enable the weak acid solution with a lower temperature to replace the chilled water to cool the speed reducer when there is scale on the inner wall of the coil in the speed reducer, and gradually dissolve the scale on the inner wall of the coil in the speed reducer, without temporarily stopping the speed reducer for maintenance. It saves time and effort and avoids reducing the production efficiency of the enterprise, and has high practical value

[0026] In summary, the present utility model achieves the expected effect.

Claims

1. A device for online cleaning of cooling coils of a reactor reducer, characterized in that: It includes a medicine circulation device, which includes a circulation pump, a liquid storage tank, and a reduction box. The liquid storage tank is connected to the circulation pump and the reduction box respectively, and the circulation pump is connected to the liquid storage tank. The circulation pump and the liquid storage tank are both installed on a mobile trolley.

2. The device for online cleaning of the cooling coil of the reactor reduction box according to claim 1 is characterized in that: The liquid storage tank is horizontally fixed on the upper surface of the moving vehicle through a bracket.

3. The device for online cleaning of the cooling coil of the reactor reduction box according to claim 1 is characterized in that: The inlet and outlet positions of the circulation pump are respectively equipped with a pump front valve and a pump outlet valve.

4. The device for online cleaning of the cooling coil of the reactor reduction box according to claim 1 is characterized in that: A first chilled water coil is arranged in the reduction gearbox, and a first chilled water coil water inlet on the first chilled water coil is connected to a circulation pump through a pump outlet metal hose, and a first chilled water coil water outlet on the first chilled water coil is connected to a liquid storage tank through a pump inlet metal hose.

5. The device for online cleaning of the cooling coil of the reactor reduction box according to claim 1 is characterized in that: The liquid storage tank is a liquid storage tank with an open top.

6. The device for online cleaning of cooling coils of a reactor reduction box according to claim 1, characterized in that: A second chilled water coil is arranged in the liquid storage tank.

7. The device for online cleaning of the cooling coil of the reactor reduction box according to claim 6, characterized in that: The water inlet and the water outlet on the second chilled water coil are connected to the water outlet and the water return port of the chilled water main pipe respectively.

8. The device for online cleaning of cooling coils of a reactor reduction box according to claim 1, characterized in that: The liquid storage tank is injected with industrial-grade citric acid dilute solution and sustained-release medicine.

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