Circulating cleaning device for polyester polyol packaging pipeline

Abstract

The utility model belongs to the technical field of pipeline cleaning, and particularly relates to a polyester polyol packaging pipeline circulation cleaning device which comprises a reaction kettle body and a circulation backflow pipeline, a filter and a pump body are sequentially installed on the circulation backflow pipeline, and a connecting pipe and a packaging machine pipeline are arranged on the circulation backflow pipeline. And a connecting valve I and a connecting valve II are respectively mounted on the connecting pipe and the packing machine pipeline. When the reaction kettle body and the circulating reflux pipeline need to be cleaned, the connecting valve and the reflux valve are opened, the connecting valve I and the connecting valve II are closed, the pump body is started, the reaction kettle body stirs, then a cleaning solvent is put into the reaction kettle body, and the pump body sucks the cleaning solvent in the reaction kettle body into the circulating reflux pipeline; at the moment, the cleaning solvent circulates through the circulating reflux pipeline, so that the cleaning solvent circulates in the reaction kettle body and the circulating reflux pipeline in a reciprocating manner, and the cleaning solvent can clean the reaction kettle body and the circulating reflux pipeline at the same time.

Description

TECHNICAL FIELD

[0001] The utility model belongs to pipeline cleaning technical field, and concretely relates to a kind of polyester polyol packaging pipeline circulating cleaning device. BACKGROUND

[0002] Polyester polyol packaging system includes packaging pipeline, packaging pump, filter and packaging machine.Reactor with polyester polyol is connected with packaging system by one-way pipeline.Polyester polyol has certain viscosity, can be attached to the inside of reactor, packaging pipeline and filter, causes wall-hanging material, cannot completely pass through packaging machine into packaging barrel, to cause product yield reduction, finished product income drop.Therefore, it needs to clean reactor and pipeline.

[0003] The prior art usually adopts the way of chemical cleaning to clean the polyester polyol with viscosity in reactor and pipeline, and the operation method is as follows: the cleaning solvent is put into the reactor, the temperature is raised and the stirring is started, and after stirring for a certain time, the temperature is lowered, and the washing kettle material is discharged.During the cleaning of the reactor, the reactor and the packaging system need to be disconnected, so the valve on the pipeline is in the closed state.Although this method can clean the polyester polyol in the reactor thoroughly, the cleaning effect of the pipeline is not ideal. UTILITY MODEL CONTENT

[0004] The utility model aims at the deficiencies of prior art, and provides a kind of polyester polyol packaging pipeline circulating cleaning device to solve the technical problems in prior art.

[0005] The purpose of the utility model can be realized by the following technical scheme: a kind of polyester polyol packaging pipeline circulating cleaning device, it includes reactor body and circulating backflow pipeline, circulating backflow pipeline two ends are connected the input port and the output port of reactor body respectively, filter and pump body are installed in sequence on the circulating backflow pipeline, connecting pipe and packaging machine pipeline are connected on the circulating backflow pipeline, connecting valve one and connecting valve two are installed on connecting pipe and packaging machine pipeline respectively.

[0006] As further optimization or improvement of the present scheme, the bottom output port of the reactor body is connected with one end of the circulating backflow pipeline through a connecting valve, and the top input port of the reactor body is connected with the other end of the circulating backflow pipeline through a backflow valve.

[0007] As further optimization or improvement of the present scheme, the connecting pipe is connected with the collection barrel through the connecting valve one.

[0008] As further optimization or improvement of the present scheme, the packaging machine pipeline is connected with the packaging machine through the connecting valve two.

[0009] As further optimization or improvement of the present scheme, a high-temperature-resistant sight glass is installed on the circulating backflow pipeline.

[0010] As further optimization or improvement of the scheme, the stirring rod is rotatably installed in the reaction kettle body, the driven gear one is installed on the stirring rod, the spray head is rotatably installed on the circulating reflux pipeline, the driven gear two is installed on the spray head, the motor is installed on the top of the reaction kettle body, the output end of the motor is connected with the driving gear, the driving gear is engaged with the driven gear one and the driven gear two respectively, and the motor is located between the stirring rod and the circulating reflux pipeline.

[0011] The beneficial effects of the utility model are as follows:

[0012] (1) when the reaction kettle body and the circulating reflux pipeline need to be cleaned, the connecting valve and the reflux valve are opened, the connecting valve one and the connecting valve two are closed, the pump body is started, the reaction kettle body is stirred, then the cleaning solvent is put into the reaction kettle body, the pump body sucks the cleaning solvent in the reaction kettle body into the circulating reflux pipeline, at this time, the cleaning solvent circulates through the circulating reflux pipeline, so that the cleaning solvent reciprocally circulates in the reaction kettle body and the circulating reflux pipeline, and the cleaning solvent can clean the reaction kettle body and the circulating reflux pipeline at the same time.

[0013] (2) when the cleaning solvent circulates in the reaction kettle body through the circulating reflux pipeline, the cleaning solvent is sprayed through the spray head on the circulating reflux pipeline, then the motor is started, when the motor drives the driving gear to rotate, the driving gear drives the driven gear one and the driven gear two to rotate in opposite directions, at this time, the motor drives the spray head to rotate, under the centrifugal force of the spray head, the cleaning solvent diffuses horizontally, so that the cleaning solvent can fully contact with the polyester polyol on the inner wall of the reaction kettle body, and the cleaning efficiency of the cleaning solvent on the reaction kettle body is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] The utility model will be further described below in combination with the drawings.

[0015] Figure 1 It is the whole structure schematic view of the utility model.

[0016] Figure 2 It is the whole structure front view of the utility model.

[0017] Figure 3 It is the internal structure schematic view of the reaction kettle body.

[0018] Figure 4 It is the connection schematic view of the motor and the stirring rod and the spray head.

[0019] As shown in the figure, 1 is a reaction kettle body, 2 is a connecting valve, 3 is a filter, 4 is a connecting pipe, 5 is a connecting valve one, 6 is a pump body, 7 is a packaging machine pipeline, 8 is a connecting valve two, 9 is a circulating backflow pipeline, 10 is a high-temperature-resistant sight glass, 11 is a backflow valve, 12 is a motor, 13 is a stirring rod, 14 is a driven gear one, 15 is a driving gear, 16 is a driven gear two, and 17 is a spraying head. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] Referring to Figures 1-3 A polyester polyol packaging pipeline circulating cleaning device, which comprises a reaction kettle body 1 and a circulating backflow pipeline 9, the two ends of the circulating backflow pipeline 9 are connected with the input port and the output port of the reaction kettle body 1 respectively, a filter 3 and a pump body 6 are sequentially installed on the circulating backflow pipeline 9, a connecting pipe 4 and a packaging machine pipeline 7 are connected with the circulating backflow pipeline 9, and a connecting valve one 5 and a connecting valve two 8 are installed on the connecting pipe 4 and the packaging machine pipeline 7 respectively.

[0022] Specifically, the bottom output port of the reaction kettle body 1 is connected with one end of the circulating backflow pipeline 9 through a connecting valve 2, and the top input port of the reaction kettle body 1 is connected with the other end of the circulating backflow pipeline 9 through a backflow valve 11.

[0023] It should be noted that a nitrogen pipeline is connected with the filter 3.

[0024] Specifically, the packaging machine pipeline 7 is connected with a packaging machine through the connecting valve two 8.

[0025] Specifically, the connecting pipe 4 is connected with a collecting barrel through the connecting valve one 5.

[0026] It should be noted that the packaging machine pipeline 7 is connected with the packaging machine through the connecting valve two 8, the connecting pipe 4 is connected with the collecting barrel through the connecting valve one 5, the connecting valve 2 and the connecting valve two 8 are opened, the backflow valve 11 and the connecting valve one 5 are closed, and the pump body 6 is started during the packaging process of the polyester polyol, at this time, the pump body 6 sucks the polyester polyol in the reaction kettle body 1 into the circulating backflow pipeline 9, so that the polyester polyol is filtered through the filter 3, the filtered polyester polyol enters the packaging machine through the packaging machine pipeline 7, and the polyester polyol is packaged through the packaging machine.

[0027] When the reactor body 1 and the circulating reflux pipeline 9 need to be cleaned, the connecting valve 2 and the reflux valve 11 are opened, the connecting valve 1 and the connecting valve 2 are closed, the pump body 6 is started, the reactor body 1 is stirred, and then the cleaning solvent is poured into the reactor body 1. The pump body 6 sucks the cleaning solvent in the reactor body 1 into the circulating reflux pipeline 9. At this time, the cleaning solvent circulates through the circulating reflux pipeline 9, and the cleaning solvent reciprocally circulates in the reactor body 1 and the circulating reflux pipeline 9, so that the cleaning solvent can clean the reactor body 1 and the circulating reflux pipeline 9 at the same time.

[0028] After cleaning, the connecting valve 1 is opened, the cleaning solvent is transported to the collection barrel through the connecting pipe 4, and the nitrogen pipeline on the filter 3 is opened. The cleaning solvent in the reactor body 1 and the circulating reflux pipeline 9 is blown into the collection barrel by nitrogen.

[0029] Referring to Figure 1 , the high-temperature-resistant sight glass 10 is installed on the circulating reflux pipeline 9. In use, the worker can observe the cleaning solvent circulating in the circulating reflux pipeline 9 through the high-temperature-resistant sight glass 10 to judge the cleaning degree of the reactor body 1 and the circulating reflux pipeline 9.

[0030] Referring to Figures 3-4 , the stirring rod 13 is rotatably installed in the reactor body 1, the driven gear 1 4 is installed on the stirring rod 13, the spray head 17 is rotatably installed on the circulating reflux pipeline 9, the driven gear 2 16 is installed on the spray head 17, the motor 12 is installed on the top of the reactor body 1, the output end of the motor 12 is connected with the driving gear 15, the driving gear 15 is engaged with the driven gear 1 4 and the driven gear 2 16 respectively, and the motor 12 is located between the stirring rod 13 and the circulating reflux pipeline 9.

[0031] It should be noted that the cleaning solvent poured into the reactor body 1 is sucked into the circulating reflux pipeline 9 by the pump body 6, so it is difficult for the cleaning solvent to contact with the polyester polyol adhered to the inner wall of the reactor body 1, which causes the cleaning difficulty of the polyester polyol on the inner wall of the reactor body 1. In order to solve the above problem, the spray head 17 is installed on the circulating reflux pipeline 9. When the cleaning solvent circulates in the reactor body 1 through the circulating reflux pipeline 9, the cleaning solvent is sprayed through the spray head 17 on the circulating reflux pipeline 9, so that the cleaning solvent can contact with the polyester polyol on the inner wall of the reactor body 1.

[0032] When the motor 12 drives the stirring rod 13 to rotate counterclockwise through the driven gear one 14, the motor 12 drives the spraying head 17 to rotate clockwise through the driven gear two 16, and the blades on the stirring rod 13 can beat the cleaning solvent sprayed in the spraying head 17 to the inner wall of the reaction kettle body 1, so that the cleaning solvent can play the maximum role and the cleaning effect of the reaction kettle body 1 is increased.

[0033] When the motor 12 drives the stirring rod 13 to rotate counterclockwise through the driven gear one 14, the motor 12 drives the spraying head 17 to rotate clockwise through the driven gear two 16, and the blades on the stirring rod 13 can beat the cleaning solvent sprayed in the spraying head 17 to the inner wall of the reaction kettle body 1, so that the cleaning solvent can play the maximum role and the cleaning effect of the reaction kettle body 1 is increased.

[0034] The implementation principle of the utility model is:

[0035] When the reaction kettle body 1 and the circulating reflux pipeline 9 need to be cleaned, the connecting valve 2 and the reflux valve 11 are opened, the connecting valve one 5 and the connecting valve two 8 are closed, and the pump body 6 is started, so that the reaction kettle body 1 is stirred, then the cleaning solvent is put into the reaction kettle body 1, the pump body 6 sucks the cleaning solvent in the reaction kettle body 1 into the circulating reflux pipeline 9, at this time, the cleaning solvent circulates through the circulating reflux pipeline 9, so that the cleaning solvent reciprocally circulates in the reaction kettle body 1 and the circulating reflux pipeline 9, and the cleaning solvent can clean the reaction kettle body 1 and the circulating reflux pipeline 9 at the same time.

[0036] When the cleaning solvent circulates into the reaction kettle body 1 through the circulating reflux pipeline 9, the cleaning solvent is sprayed through the spraying head 17 on the circulating reflux pipeline 9, then the motor 12 is started, when the motor 12 drives the driving gear 15 to rotate, the driving gear 15 drives the driven gear one 14 and the driven gear two 16 to rotate reversely, at this time, the motor 12 drives the spraying head 17 to rotate, under the centrifugal force of the spraying head 17, the cleaning solvent diffuses horizontally, so that the cleaning solvent can fully contact with the polyester polyol on the inner wall of the reaction kettle body 1, and the cleaning efficiency of the cleaning solvent on the reaction kettle body 1 is improved.

[0037] After cleaning, the connecting valve one 5 is opened, the cleaning solvent is transported to the collecting barrel through the connecting pipe 4, and the nitrogen pipeline on the filter 3 is opened, so that the cleaning solvent in the reaction kettle body 1 and the circulating reflux pipeline 9 is blown into the collecting barrel through nitrogen.

[0038] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A polyester polyol packaging line circulating cleaning apparatus characterized by: The utility model relates to a reaction kettle body (1) and circulating reflux pipeline (9), circulating reflux pipeline (9) both ends are connected reaction kettle body (1) input and output respectively, filter (3) and pump body (6) are installed in sequence on circulating reflux pipeline (9), connecting pipe (4) and packing machine pipeline (7) are connected on circulating reflux pipeline (9), connecting valve one (5) and connecting valve two (8) are installed respectively on connecting pipe (4) and packing machine pipeline (7).

2. A polyester polyol packaging line circulating cleaning apparatus according to claim 1, characterized in that: The bottom output of the reaction kettle body (1) is connected with one end of the circulating reflux pipeline (9) through a connecting valve (2), and the top input of the reaction kettle body (1) is connected with the other end of the circulating reflux pipeline (9) through a reflux valve (11).

3. A polyester polyol packaging line circulating cleaning apparatus according to claim 1, characterized in that: The connecting pipe (4) is connected with a collecting barrel through the connecting valve one (5).

4. The polyester polyol packaging line circulating cleaning apparatus according to claim 1, characterized in that: The packing machine pipeline (7) is connected with a packing machine through the connecting valve two (8).

5. The polyester polyol packaging line circulating cleaning apparatus according to claim 1, characterized in that: A high-temperature-resistant sight glass (10) is installed on the circulating reflux pipeline (9).

6. A polyester polyol packaging line circulating cleaning apparatus according to claim 1, characterized in that: A stirring rod (13) is rotatably installed in the reaction kettle body (1), a driven gear one (14) is installed on the stirring rod (13), a spraying head (17) is rotatably installed on the circulating reflux pipeline (9), a driven gear two (16) is installed on the spraying head (17), a motor (12) is installed on the top of the reaction kettle body (1), an output end of the motor (12) is connected with a driving gear (15), the driving gear (15) is engaged with the driven gear one (14) and the driven gear two (16) respectively, and the motor (12) is located between the stirring rod (13) and the circulating reflux pipeline (9).

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