Dangerous chemical liquid transportation pipeline cleaning equipment

Abstract

The dangerous chemical liquid transportation pipeline cleaning equipment comprises a water washing system and an air drying system which are matched with a transportation pipeline, the washing system comprises a main washing system and a reciprocating washing system, the main washing system comprises a main water tank and a main water pump, the reciprocating washing system comprises a temporary storage water tank and a washing pump, the temporary storage water tank is communicated with the main water tank through the main water pump, and the transportation pipeline is communicated with the temporary storage water tank and the washing pump end to end to form a passage; a first on-off valve is arranged on the pipeline between the water inlet end of the transportation pipeline and the cleaning pump, a fourth on-off valve is arranged on the pipeline between the water outlet end of the transportation pipeline and the temporary storage pool, and the pipeline at the water outlet end of the transportation pipeline is communicated with the wastewater collection pool through a third on-off valve; the air drying system comprises a high-pressure inert gas source, and the high-pressure inert gas source is communicated with the water inlet end of the transportation pipeline through a pipeline with a second on-off valve; and a rotary cleaning piece is slidably arranged in the transportation pipeline. The cleaning equipment has the advantages of being good in cleaning effect, energy-saving and environment-friendly.

Description

Technical Field

[0001] The invention relates to a cleaning device for a hazardous chemical liquid transport pipeline, in particular to a cleaning device for a transport pipeline of hazardous chemical liquids such as sulfuric acid, and belongs to the technical field of hazardous liquid transport pipeline cleaning devices. Background Art

[0002] As mentioned in the Chinese utility model patent "Authorization Announcement No.: CN205579161U; Authorization Announcement Date: September 14, 2016; Patent Name: A Dangerous Chemical Liquid Transport Pipeline Cleaning Safety Device", the traditional cleaning of pipelines for transporting dangerous chemical liquids is achieved by blowing high-pressure inert gas. On the one hand, it only uses high-pressure gas blowing for cleaning, which has the defect of poor cleaning effect. On the other hand, the cleaning device composed of a high-pressure inert gas source, a pipeline to be cleaned, a first pipeline, a ball, a ball interceptor, a second channel and a cover can only manually achieve the connection and disconnection between the pipeline to be cleaned and the storage tank, which has the defects of cumbersome operation, high labor intensity, workers need to directly contact the pipeline, and safety cannot be guaranteed. Summary of the invention

[0003] The purpose of the present invention is to provide a new hazardous chemical liquid transmission pipeline cleaning equipment in response to the above-mentioned technical defects of the existing hazardous chemical liquid transmission pipeline cleaning devices. The cleaning equipment first uses a brush and water to reciprocate and clean the pipeline multiple times, and then uses high-pressure gas to blow and dry it. At the same time, each step of the device can also be automatically implemented by a controller, which has the advantages of good cleaning effect, simple operation and high safety.

[0004] The above technical objectives of the present invention are achieved through the following technical solutions:

[0005] A cleaning device for a hazardous chemical liquid transport pipeline comprises a water washing system and an air drying system arranged with the transport pipeline; the water washing system comprises a main washing system and a reciprocating water washing system, the main washing system comprises a main water tank and a main water pump, the reciprocating water washing system comprises a temporary water tank and a cleaning pump, the temporary water tank is connected to the main water tank through the main water pump, the transport pipeline is connected to the temporary water tank and the cleaning pump to form a passage, a first on-off valve is arranged on the pipeline between the water inlet end of the transport pipeline and the cleaning pump, a fourth on-off valve is arranged on the pipeline between the water outlet end of the transport pipeline and the temporary water tank, and the pipeline at the water outlet end of the transport pipeline is connected to a wastewater collection tank through a third on-off valve; the air drying system comprises a high-pressure inert gas source, the high-pressure inert gas source is connected to the water inlet end of the transport pipeline through a pipeline with a second on-off valve; a rotating cleaning component is slidably arranged in the transport pipeline.

[0006] By adopting the above technical scheme, a cleaning device for dangerous chemical liquid transportation pipelines is provided. The cleaning device controls the forward and reverse rotation of the cleaning pump (the forward and reverse rotation of the cleaning pump can drive the water to flow in the forward and reverse directions, and then drive the rotating cleaning room in the transportation pipeline to move back and forth for cleaning). The brush and water are first used to clean the pipeline reciprocatingly for multiple times, and then high-pressure inert gas is used to blow and dry it. The cleaning device has the advantages of good cleaning effect, energy saving and environmental protection.

[0007] The present invention is further configured as follows: the pipeline at the water inlet end of the transport pipeline is connected to the temporary water storage pool through the sixth on-off valve, and the pipeline at the water outlet end of the transport pipeline is connected to the pipeline between the cleaning pump and the first on-off valve through the pipeline with the fifth on-off valve.

[0008] By adopting the above technical scheme, an alternative scheme for achieving reciprocating cleaning of the delivery pipeline is provided. When in use, there is no need to change the rotation direction of the cleaning pump. Reciprocating cleaning of the transport pipeline is achieved by targetedly controlling the on and off of the first on-off valve, the fourth on-off valve, the fifth on-off valve, and the sixth on-off valve. This scheme does not need to change the rotation direction of the cleaning pump. Compared with the above scheme, it can achieve reciprocating cleaning more quickly, with higher cleaning efficiency and better cleaning effect.

[0009] The present invention is further configured as follows: the operating conditions of the main water pump, the cleaning pump, and the first on-off valve, the second on-off valve, the third on-off valve, the fourth on-off valve, the fifth on-off valve, and the sixth on-off valve are uniformly controlled by a controller.

[0010] By adopting the above technical solution, a controller is used to uniformly control the working conditions of various components, thereby achieving automation, effectively reducing the labor intensity of workers, and improving safety and cleaning efficiency.

[0011] The present invention is further configured as follows: when in use, the controller first controls the main water pump to inject the clean water in the main water tank into the temporary storage tank. When the water volume in the temporary storage tank is sufficient, the main water pump stops working, and the controller starts the cleaning pump to realize multiple reciprocating cleaning of the transport pipeline. After the cleaning is completed, the wastewater with impurities in the transport pipeline enters the wastewater collection tank for temporary storage. The controller then opens the second on-off valve to introduce the high-pressure inert gas in the high-pressure inert gas source to air-dry the transport pipeline. The high-pressure inert gas in the transport pipeline is discharged into the wastewater collection tank. After being filtered in the wastewater collection tank, the inert gas is directly discharged into the atmosphere.

[0012] By adopting the above technical solution, the specific use method of the cleaning device is limited.

[0013] The present invention is further configured as follows: the wastewater collection tank is connected to the main water tank through the reaction tank and the filtering device.

[0014] By adopting the above technical solution, the wastewater in the wastewater collection pool is recycled and reused, which effectively reduces the loss and saves energy and is environmentally friendly.

[0015] The present invention is further configured as follows: the rotary cleaning member comprises a plastic inner cylinder and a plastic brush arranged on the outer peripheral surface of the plastic inner cylinder.

[0016] The present invention is further configured as follows: a plurality of plastic support rings are equidistantly arranged axially on the outer circumference of the plastic inner cylinder, the plastic brushes are arranged on the plastic inner cylinder between the plastic support rings, and the outer diameter of the plastic support rings is smaller than the outer diameter of the plastic brushes.

[0017] The present invention is further configured as follows: a plurality of radial support plates are equidistantly arranged in the annular space between the plastic inner cylinder and the plastic support ring, and the radial support plates are inclined in the same direction in the circumferential direction.

[0018] By adopting the above technical solution, a rotating cleaning member is provided which has good supporting effect and can automatically rotate the pipe wall for cleaning when moving axially. The cleaning member can effectively improve the cleaning efficiency and cleaning effect.

[0019] The present invention is further configured as follows: a preheating device for the gas is provided between the high-pressure inert gas source and the transport pipeline.

[0020] By adopting the above technical solution, the high-pressure inert gas is preheated, and the preheated inert gas has better air-drying ability.

[0021] The main beneficial effects of the present invention are:

[0022] 1. The cleaning equipment of the present invention controls the forward and reverse rotation of the cleaning pump (the forward and reverse rotation of the cleaning pump can drive the water to flow in the forward and reverse directions, and then drive the rotating cleaning room in the transport pipeline to move back and forth for cleaning). First, the brush and water are used to clean the pipeline back and forth for multiple times, and then high-pressure inert gas is used to blow and dry it. It has the advantages of good cleaning effect, energy saving and environmental protection.

[0023] 2. The cleaning equipment of the present invention also provides an alternative solution for achieving reciprocating cleaning of the transport pipeline. When in use, there is no need to change the rotation direction of the cleaning pump. Reciprocating cleaning of the transport pipeline is achieved by targetedly controlling the on and off of the first on-off valve, the fourth on-off valve, the fifth on-off valve, and the sixth on-off valve. This solution does not need to change the rotation direction of the cleaning pump. Compared with the above solution, it can achieve reciprocating cleaning more quickly, with higher cleaning efficiency and better cleaning effect.

[0024] 3. The cleaning equipment of the present invention adopts a controller to uniformly control the working conditions of various components, thus realizing automation, effectively reducing the labor intensity of workers, and improving safety and cleaning efficiency.

[0025] 4. The wastewater collection pool of the cleaning equipment of the present invention is connected to the main water pool through the reaction pool and the filtering device, and the wastewater in the wastewater collection pool is recycled and reused, which effectively reduces the loss and saves energy and is environmentally friendly.

[0026] 5. The cleaning device of the present invention provides a rotating cleaning member with good supporting effect, which can automatically rotate the pipe wall for cleaning when moving axially. The cleaning member can effectively improve the cleaning efficiency and cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 It is a schematic diagram of the present invention;

[0029] Figure 2 It is a structural schematic diagram of the side surface of the rotating cleaning member in the present invention;

[0030] Figure 3 It is a structural schematic diagram of the end surface of the rotating cleaning member in the present invention.

[0031] In the figure, 1. main water tank; 2. main water pump; 3. temporary water tank; 4. cleaning pump; 5. high-pressure inert gas source; 6. transportation pipeline; 7. wastewater collection tank; 8. reaction tank; 9. filtering device; 10. first on-off valve; 11. second on-off valve; 12. third on-off valve; 13. fourth on-off valve; 14. fifth on-off valve; 15. sixth on-off valve; 16. rotating cleaning part; 161. plastic inner cylinder; 162. plastic support ring; 163. radial support plate; 164. plastic brush. DETAILED DESCRIPTION

[0032] The technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Embodiment 1:

[0034] like Figures 1 to 3 As shown, a hazardous chemical liquid transport pipeline cleaning device includes a water washing system and an air drying system equipped with the transport pipeline 6, and the working conditions of the water washing system and the air drying system are automatically controlled by a controller.

[0035] The water washing system includes a main washing system and a reciprocating washing system. The main washing system includes a main water tank 1 and a main water pump 2. The reciprocating washing system includes a temporary water tank 3 and a cleaning pump 4. The temporary water tank 3 is connected to the main water tank 1 through the main water pump 2. The transport pipeline 6 is connected to the temporary water tank 3 and the cleaning pump 4 to form a passage. A first on-off valve 10 is provided on the pipeline between the water inlet end of the transport pipeline 6 and the cleaning pump 4. A fourth on-off valve 13 is provided on the pipeline between the water outlet end of the transport pipeline 6 and the temporary water tank 3. The pipeline at the water outlet end of the transport pipeline 6 is connected to the wastewater collection tank 7 through the third on-off valve 12. The air drying system includes a high-pressure inert gas source 5. The high-pressure inert gas source 5 is connected to the water inlet end of the transport pipeline 6 through a pipeline with a second on-off valve 11. A preheating device for the gas is provided between the high-pressure inert gas source 5 and the transport pipeline 6. The wastewater collection tank 7 is connected to the main water tank 1 through a reaction tank 8 and a filtering device 9. The working conditions of the main water pump 2, the cleaning pump 4, and the first on-off valve 10, the second on-off valve 11, the third on-off valve 12, the fourth on-off valve 13, the fifth on-off valve 14, and the sixth on-off valve 15 are uniformly controlled by the controller. In this solution, by controlling the forward and reverse rotation of the cleaning pump 4, the water in the temporary water tank 3 can be used to flush the transport pipeline 6 back and forth.

[0036] As an alternative to the above-mentioned scheme, the pipe at the water inlet end of the transport pipeline 6 is connected to the temporary water storage pool 3 through the sixth on-off valve 15, and the pipe at the water outlet end of the transport pipeline 6 is connected to the pipe between the cleaning pump 4 and the first on-off valve 10 through the pipe with the fifth on-off valve 14.

[0037] A rotating cleaning member 16 is slidably arranged in the transport pipeline 6. The rotating cleaning member 16 comprises a plastic inner cylinder 161 and a plastic brush 164 arranged on the outer circumference of the plastic inner cylinder 161. A plurality of plastic support rings 162 are equidistantly arranged axially on the outer circumference of the plastic inner cylinder 161. The plastic brush 164 is arranged on the plastic inner cylinder 161 between the plastic support rings 162. The outer diameter of the plastic support ring 162 is smaller than the outer diameter of the plastic brush 164. A plurality of radial support plates 163 are equidistantly arranged in the annular space between the plastic inner cylinder 161 and the plastic support ring 162. The radial support plates 163 are inclined in the same direction in the circumferential direction. An angle is formed between the radial support plates 163 and the radial plane of the plastic support ring 162. When water flows axially in the transport pipeline 6, the axial movement and rotation of the rotating cleaning member 16 can be achieved by impacting the radial support plates 163.

[0038] How it works:

[0039] When in use, the controller first controls the main water pump 2 to inject the clean water in the main water tank 1 into the temporary water tank 3. When the water volume in the temporary water tank 3 is sufficient, the main water pump 2 stops working, and the controller starts the cleaning pump 4 to realize multiple reciprocating cleaning of the transport pipeline 6. After the cleaning is completed, the wastewater with impurities in the transport pipeline 6 enters the wastewater collection tank 7 for temporary storage, and the controller then opens the second on-off valve 11 to introduce the high-pressure inert gas in the high-pressure inert gas source 5 to air-dry the transport pipeline 6. The high-pressure inert gas in the transport pipeline 6 is discharged into the wastewater collection tank 7. After being filtered by the wastewater collection tank 7, the inert gas is directly discharged into the atmosphere. The wastewater in the wastewater collection tank 7 is reacted in the reaction tank 8 to remove the residual hazardous chemical components in the transport pipeline 6, and then filtered by the filter device 9, and the obtained clean water is returned to the main water tank 1 for reuse.

Claims

1. A hazardous chemical liquid transport pipeline cleaning equipment, characterized by: The invention comprises a water washing system and an air drying system which are arranged with a transport pipeline (6); the water washing system comprises a main washing system and a reciprocating water washing system, the main washing system comprises a main water tank (1) and a main water pump (2), the reciprocating water washing system comprises a temporary water tank (3) and a cleaning pump (4), the temporary water tank (3) is connected to the main water tank (1) through the main water pump (2), the transport pipeline (6) is connected to the temporary water tank (3) and the cleaning pump (4) at the end to form a passage, and the pipe between the water inlet end of the transport pipeline (6) and the cleaning pump (4) is A first on-off valve (10) is arranged on the pipeline, a fourth on-off valve (13) is arranged on the pipeline between the water outlet end of the transport pipeline (6) and the temporary water storage pool (3), and the pipeline at the water outlet end of the transport pipeline (6) is connected to the wastewater collection pool (7) through the third on-off valve (12); the air drying system comprises a high-pressure inert gas source (5), and the high-pressure inert gas source (5) is connected to the water inlet end of the transport pipeline (6) through a pipeline with a second on-off valve (11); a rotating cleaning member (16) is slidably arranged in the transport pipeline (6).

2. The hazardous chemical liquid transport pipeline cleaning equipment according to claim 1 is characterized by: The pipeline at the water inlet end of the transport pipeline (6) is connected to the temporary water storage pool (3) through the sixth on-off valve (15), and the pipeline at the water outlet end of the transport pipeline (6) is connected to the pipeline between the cleaning pump (4) and the first on-off valve (10) through the pipeline with the fifth on-off valve (14).

3. The hazardous chemical liquid transport pipeline cleaning equipment according to claim 2 is characterized by: The operating conditions of the main water pump (2), the cleaning pump (4), the first on-off valve (10), the second on-off valve (11), the third on-off valve (12), the fourth on-off valve (13), the fifth on-off valve (14), and the sixth on-off valve (15) are uniformly controlled by a controller.

4. The hazardous chemical liquid transport pipeline cleaning equipment according to claim 3 is characterized by: When in use, the controller first controls the main water pump (2) to inject the clean water in the main water pool (1) into the temporary water pool (3). When the water volume in the temporary water pool (3) is sufficient, the main water pump (2) stops working, and the controller starts the cleaning pump (4) to realize multiple reciprocating cleaning of the transport pipeline (6). After the cleaning is completed, the wastewater with impurities in the transport pipeline (6) enters the wastewater collection pool (7) for temporary storage. The controller then opens the second on-off valve (11) to introduce the high-pressure inert gas in the high-pressure inert gas source (5) to air-dry the transport pipeline (6). The high-pressure inert gas in the transport pipeline (6) is discharged into the wastewater collection pool (7). After being filtered by the wastewater collection pool (7), the inert gas is directly discharged into the atmosphere.

5. The hazardous chemical liquid transport pipeline cleaning equipment according to claim 1 is characterized by: The wastewater collection tank (7) is connected to the main water tank (1) through a reaction tank (8) and a filtering device (9).

6. The hazardous chemical liquid transport pipeline cleaning equipment according to claim 1 is characterized by: The rotating cleaning member (16) comprises a plastic inner cylinder (161) and a plastic brush (164) arranged on the outer peripheral surface of the plastic inner cylinder (161).

7. The hazardous chemical liquid transport pipeline cleaning equipment according to claim 6 is characterized by: A plurality of plastic support rings (162) are axially equidistantly arranged on the outer peripheral surface of the plastic inner cylinder (161); the plastic brush (164) is arranged on the plastic inner cylinder (161) between the plastic support rings (162); and the outer diameter of the plastic support ring (162) is smaller than the outer diameter of the plastic brush (164).

8. The hazardous chemical liquid transport pipeline cleaning equipment according to claim 7 is characterized by: A plurality of radial support plates (163) are equidistantly arranged in the annular space between the plastic inner cylinder (161) and the plastic support ring (162), and the radial support plates (163) are inclined in the same direction in the circumferential direction.

9. The hazardous chemical liquid transport pipeline cleaning equipment according to claim 1, characterized in that: A gas preheating device is provided between the high-pressure inert gas source (5) and the transport pipeline (6).

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