Flushing device suitable for heat exchanger of chemical device

Abstract

The utility model relates to the technical field of heat exchanger flushing, and discloses a flushing device suitable for a heat exchanger of a chemical device, which comprises a base, an oil tank is arranged on the base, the oil tank is connected with an electromagnetic directional valve, and the electromagnetic directional valve is sequentially connected with a throttle valve A, a one-way valve A, a balance valve A, a throttle valve B, a one-way valve B and a balance valve B through two oil pipes respectively. The balance valve A is connected with the lifting oil cylinder, the lifting oil cylinder is connected with the electromagnetic reversing valve, the translation oil cylinder is arranged at the upper end of the lifting oil cylinder, the translation oil cylinder is connected with the connecting block, the balance valve B is connected with the translation oil cylinder, the translation oil cylinder is connected with the electromagnetic reversing valve, and the electromagnetic reversing valve is connected with the oil tank. When a heat exchanger in a chemical device is flushed, the lifting oil cylinder can be lifted up and down and the translation oil cylinder can be translated left and right by operating the remote control handle, so that a pipe bundle in the heat exchanger is flushed after being centered by the spray head.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchanger flushing, in particular to a flushing device suitable for a heat exchanger of a chemical device. Background Art

[0002] A heat exchanger is a device that transfers part of the heat of a hot fluid to a cold fluid, also known as a heat exchanger. Heat exchangers play an important role in industrial production such as chemical and petroleum. In order to ensure the long-term normal operation of heat exchangers in chemical plants, the equipment must be maintained and repaired to ensure continuous operation of the heat exchanger and reduce the occurrence of accidents. If a heat exchanger is used for too long, scaling and other phenomena will occur, which seriously affects the heat exchange effect and further affects the production of chemical equipment. Therefore, the heat exchanger must be flushed and descaled during maintenance. Conventional flushing operations are to manually flush the heat exchanger tube bundle with a handheld flushing gun. This flushing method requires people to hold the flushing gun for a long time, and each tube bundle must be flushed. When people are tired, the efficiency will be greatly reduced. In addition, when the flushing gun is out of hand, it will also cause certain harm to the human body. In order to improve efficiency and safety, the utility model provides a flushing device suitable for heat exchangers of chemical equipment. Utility Model Content

[0003] The utility model aims to overcome the shortcomings of the prior art and provide a flushing device suitable for a heat exchanger of a chemical plant.

[0004] In order to achieve the above-mentioned purpose, the technical scheme of the utility model is: a flushing device suitable for a heat exchanger of a chemical device, comprising a base, an oil tank is arranged on the base, the oil tank is connected to a gear oil pump through an oil pipe, the gear oil pump is connected to an electromagnetic reversing valve through an oil pipe, the electromagnetic reversing valve is respectively connected to a throttle valve A and a throttle valve B through oil pipes, the throttle valve A and the throttle valve B are respectively connected to a check valve A and a check valve B through oil pipes, the check valve A and the check valve B are respectively connected to Balance valve A and balance valve B, the balance valve A is connected to the lifting cylinder through an oil pipe, another oil pipe of the lifting cylinder is connected to the electromagnetic reversing valve, a connecting plate is provided at the upper end of the lifting cylinder, a translation cylinder is provided on the connecting plate, one end of the translation cylinder is connected to a connecting block, a water passage is provided inside the connecting block, the translation cylinder is connected to the balance valve B through an oil pipe, another oil pipe on the translation cylinder is connected to the electromagnetic reversing valve, and the electromagnetic reversing valve is connected to the oil tank through an oil pipe.

[0005] Furthermore, a water tank is provided on one side of the base, an inlet joint is provided on one side of the outer wall of the water tank, a pipeline water pump is connected to the bottom of the water tank through a pipeline, and the pipeline water pump is connected to the connecting block through a water pipe.

[0006] Furthermore, the connection block is provided with a plurality of nozzles, and each nozzle is provided with a valve.

[0007] Furthermore, a float valve is connected between the interior of the water tank and the inlet joint.

[0008] Furthermore, the electromagnetic reversing valve is provided with a remote control handle.

[0009] Furthermore, four steering wheels are provided at the lower end of the base, and each steering wheel is provided with a locking device.

[0010] Furthermore, diagonal braces are provided on both sides of the lifting cylinder for fixing.

[0011] Furthermore, an armrest is provided on the upper portion of the base.

[0012] Beneficial effects of the utility model:

[0013] (1) When flushing a heat exchanger in a chemical device, the utility model connects a water pipe to the water tank inlet joint and controls the lifting cylinder up and down and the translation cylinder left and right through a remote control handle, thereby realizing the up, down, left and right movement of the flushing nozzle, and then flushing the tube bundle in the heat exchanger after it is centered, avoiding the safety hazards and time-consuming and labor-intensive problems caused by manual flushing, and greatly improving the flushing efficiency.

[0014] (2) A pipeline water pump is connected to the bottom of the water tank through a pipeline. The pipeline water pump is connected to the connecting block through a water pipe. Water is sucked from the water tank through the water pump, thereby providing flushing water pressure for each valve on the connecting block.

[0015] (3) The connection block is provided with a plurality of flushing nozzles, and each flushing nozzle is provided with a valve. By controlling the switch of the valve, the tube bundle holes of a plurality of heat exchangers can be flushed at the same time, thereby greatly improving the flushing efficiency.

[0016] (4) A float valve is connected to the inlet joint of the water tank. When the water in the external water pipe enters the water tank and is about to be full, the float valve is closed and no water enters. When the water level drops, the float valve opens to replenish water to the water tank, realizing automatic adjustment of the water level in the water tank and ensuring the normal supply of water in the water tank during flushing.

[0017] (5) Four steering wheels are arranged at the lower end of the base, and each steering wheel is provided with a locking device, which locks the steering wheel during operation to ensure the stability of the device during the flushing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a top view of the utility model;

[0020] Figure 3It is a side view of the utility model;

[0021] Figure 4 This utility model Figure 2 Sectional view at AA.

[0022] In the figure: 1. base; 101. steering wheel; 102. locking device; 2. handrail; 3. water tank; 301. inlet joint; 4. oil tank; 5. gear oil pump; 6. pipeline water pump; 7. solenoid reversing valve; 701. remote control handle; 8. throttle valve A; 801. throttle valve B; 9. one-way valve A; 901. one-way valve B; 10. balancing valve A; 1001. balancing valve B; 11. lifting cylinder; 1101. connecting plate; 1102. diagonal brace; 12. translation cylinder; 1201. connecting block; 13. flushing nozzle; 1301. valve; 14. float valve. DETAILED DESCRIPTION

[0023] Example:

[0024] like Figure 1-4 As shown, a flushing device suitable for a heat exchanger of a chemical device comprises a base 1, a handrail 2 is arranged on the upper part of the base, a water tank 3 is arranged on one side of the handrail 2, an inlet joint 301 is arranged on one side of the outer wall of the water tank, an oil tank 4 is arranged on one side of the water tank 3 on the base, the oil tank 4 is connected to a gear oil pump 5 through an oil pipe, the gear oil pump 5 is connected to an electromagnetic reversing valve 7 through an oil pipe, the electromagnetic reversing valve 7 is respectively connected to a throttle valve A8 and a throttle valve B801 through oil pipes, the throttle valve A8 and the throttle valve B801 are respectively connected to a check valve A9 and a check valve B901 through oil pipes, the check valve A9 and the check valve B901 are respectively connected to a balancing valve A10 through oil pipes and a balancing valve B1001, the balancing valve A10 is connected to the lifting cylinder 11 through an oil pipe, another oil pipe of the lifting cylinder 11 is connected to the electromagnetic reversing valve 7, diagonal braces 1102 are arranged on both sides of the lifting cylinder 11 for fixing, a connecting plate 1101 is arranged on the upper end of the lifting cylinder 11, a translation cylinder 12 is arranged on the connecting plate 1101, one end of the translation cylinder 12 is connected to a connecting block 1201, a water passage is arranged inside the connecting block 1201, the translation cylinder 12 is connected to the balancing valve B1001 through an oil pipe, another oil pipe on the translation cylinder 12 is connected to the electromagnetic reversing valve 7, and the electromagnetic reversing valve 7 is connected to the oil tank 4 through an oil pipe.

[0025] The bottom of the water tank 3 is connected to a pipeline water pump 6 through a pipeline. The pipeline water pump 6 is connected to the connection block 1201 through a water pipe. Water is sucked from the water tank 3 by the pipeline water pump 6, thereby providing flushing water pressure for each valve 1301 on the connection block 1201.

[0026] The connection block 1201 is provided with a plurality of flushing nozzles 13, and each flushing nozzle 13 is provided with a valve 1301. By controlling the switch of the valve 1301, flushing of a plurality of heat exchanger tube bundle holes is started simultaneously, thereby greatly improving the flushing efficiency.

[0027] A float valve 14 is connected to the inside of the water tank 3 and the inlet joint 301. When the water in the external water pipeline enters the water tank and is about to be full, the float valve 14 is closed and no water enters. When the water level drops, the float valve 14 opens to replenish the water tank, thereby realizing automatic adjustment of the water level in the water tank and ensuring the normal supply of water in the water tank 3 during flushing.

[0028] The electromagnetic reversing valve 7 is provided with a remote control handle 701. When the utility model flushes the heat exchanger in the chemical device, by operating the remote control handle 701, the lifting cylinder 11 can be lifted up and down and the translation cylinder 12 can be translated left and right, thereby realizing the up, down, left and right movement of the flushing nozzle 13, and then realizing the flushing of the tube bundle in the heat exchanger after centering, avoiding the safety hazards and time-consuming and labor-intensive problems caused by manual flushing, and greatly improving the flushing efficiency.

[0029] Four steering wheels 101 are arranged at the lower end of the base 1, and each steering wheel 101 is provided with a locking device 102, which locks the steering wheel 101 during operation to ensure the stability of the device during the flushing process.

[0030] In this solution, the device is pushed to the front of the heat exchanger that needs to be flushed by pushing the handrail 2, the steering wheel 101 is locked, the external water pipe is connected to the inlet joint 301, water is injected into the water tank 3, the gear oil pump 5 and the pipeline water pump 6 are started, and the remote control water handle 701 is operated. The position of the flushing nozzle 13 is adjusted by adjusting the lifting cylinder 11 and the translation cylinder 12, so that the flushing nozzle 13 is aligned with the tube bundle hole in the heat exchanger, and the valve 1301 on the flushing nozzle 13 is opened to flush the heat exchanger. During the flushing process, the position of the flushing nozzle 13 is continuously adjusted by operating the remote control handle 701, and finally all positions of the tube bundle hole in the heat exchanger can be flushed clean, thereby avoiding the time-consuming and labor-intensive problems of manual flushing and the potential safety hazards, and greatly improving the efficiency of flushing.

[0031] The above-described embodiments are only preferred solutions of the present invention and are not intended to limit the present invention in any form. Other variations and modifications are possible without exceeding the technical solutions described in the claims.

[0032] In the description of the present invention, it is necessary to understand that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

Claims

1. A flushing device for a heat exchanger of a chemical plant, comprising a base (1), characterized in that: The base (1) is provided with an oil tank (4), the oil tank (4) being connected to a gear oil pump (5) via an oil pipe, the gear oil pump (5) being connected to an electromagnetic reversing valve (7) via an oil pipe, the electromagnetic reversing valve (7) being connected to a throttle valve A (8) and a throttle valve B (801) via oil pipes, respectively, the throttle valve A (8) and the throttle valve B (801) being connected to a check valve A (9) and a check valve B (901) via oil pipes, respectively, the check valve A (9) and the check valve B (901) being connected to a balancing valve A (10) and a balancing valve B (1001) via oil pipes, the balancing valve A (10) being connected to a lifting device via an oil pipe. On the lowering cylinder (11), another oil pipe of the lifting cylinder (11) is connected to the electromagnetic reversing valve (7), a connecting plate (1101) is provided at the upper end of the lifting cylinder (11), a translation cylinder (12) is provided on the connecting plate (1101), one end of the translation cylinder (12) is connected to a connecting block (1201), a water passage is provided inside the connecting block (1201), the translation cylinder (12) is connected to the balance valve B (1001) through an oil pipe, another oil pipe on the translation cylinder (12) is connected to the electromagnetic reversing valve (7), and the electromagnetic reversing valve (7) is connected to the oil tank (4) through an oil pipe.

2. The flushing device for a heat exchanger of a chemical plant according to claim 1, characterized in that: A water tank (3) is provided on one side of the base (1), an inlet joint (301) is provided on one side of the outer wall of the water tank, a pipeline water pump (6) is connected to the bottom of the water tank (3) via a pipeline, and the pipeline water pump (6) is connected to the connection block (1201) via a water pipe.

3. The flushing device for a heat exchanger of a chemical plant according to claim 1, characterized in that: The connection block (1201) is provided with a plurality of flushing nozzles (13), and each flushing nozzle (13) is provided with a valve (1301).

4. The flushing device for a heat exchanger of a chemical plant according to claim 2, characterized in that: A float valve (14) is connected between the interior of the water tank (3) and the inlet joint (301).

5. The flushing device for a heat exchanger of a chemical plant according to claim 1, characterized in that: The electromagnetic reversing valve (7) is provided with a remote control handle (701).

6. The flushing device for a heat exchanger of a chemical plant according to claim 1, characterized in that: Four steering wheels (101) are provided at the lower end of the base (1), and each steering wheel (101) is provided with a locking device (102).

7. The flushing device for a heat exchanger of a chemical plant according to claim 1, characterized in that: Diagonal braces (1102) are provided on both sides of the lifting cylinder (11) for fixing.

8. The flushing device for a heat exchanger of a chemical plant according to claim 1, characterized in that: An armrest (2) is provided on the upper portion of the base.

Images