Device for reducing resistance of primary cooler

Abstract

The utility model discloses a device for reducing the resistance of a primary cooler, which comprises a transverse pipe primary cooler, a spraying pipe group is arranged in the transverse pipe primary cooler, and the spraying pipe group is sequentially provided with a top spraying pipe group, an upper spraying pipe group and a bottom spraying pipe group from top to bottom, and an upper-section water seal tank, a lower-section water seal tank, a washing liquid water seal tank, an upper-section condensate tank, a lower-section condensate tank, an ammonia water tank and a mechanical ammonia water clarifying tank are arranged outside the transverse pipe primary cooler. The device can spray circulating ammonia water to the top, the upper part and the lower part, is suitable for spraying and cleaning the large-scale transverse pipe primary cooler, and is used for cleaning three sections of the transverse pipe primary cooler through circulating ammonia water to reduce resistance, and spraying liquid after cleaning enters a cleaning liquid water seal tank and then enters a mechanical ammonia water clarifying tank to be separated and settled; and therefore, the running resistance of the gas in the horizontal pipe primary cooler is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of primary cooler gas cooling, and particularly relates to a device for reducing the resistance of a primary cooler. Background Art

[0002] During the operation of the primary cooler in the chemical product workshop, the resistance of the middle and lower sections gradually increases with the increase of the service time, and it is necessary to regularly carry out hot ammonia water flushing and cleaning. However, only the top of the existing equipment has hot ammonia water flushing, which cannot meet the spraying and flushing requirements of the middle and lower sections. There is no hot ammonia water flushing in the middle and lower sections. Currently, the middle and lower sections of the primary cooler use condensate circulation spraying to wash impurities. After the impurities washed down by the circulating condensate enter the condensate tank, they are pumped to the spraying pipe by the spraying pump, resulting in blockage in the spraying pipes in the middle part of the primary cooler, poor spraying effect, and finally problems such as low flow rate of the circulating spraying liquid and high resistance in the spraying pipes of the middle and lower sections. Content of the Utility Model

[0003] The purpose of the utility model is to provide a device for reducing the resistance of a primary cooler, which gradually reduces the resistance of the primary cooler through flushing the upper, middle and lower sections with hot ammonia water.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0005] A device for reducing the resistance of a primary cooler, including a horizontal tube primary cooler. Inside the horizontal tube primary cooler, a top spraying pipe group, an upper spraying pipe group and a bottom spraying pipe group are successively arranged from top to bottom. Outside the horizontal tube primary cooler, there are an upper water seal tank, a lower water seal tank, a washing liquid water seal tank, an upper condensate tank, a lower condensate tank, an ammonia water tank and a mechanical ammonia water clarifying tank;

[0006] The top spraying pipe group, the upper spraying pipe group and the bottom spraying pipe group are communicated with the ammonia water tank through a ninth pipeline and a fourth pipeline. The upper spraying pipe group is connected with the upper condensate tank through a first pipeline. The bottom spraying pipe group is connected with the lower condensate tank through a fifth pipeline;

[0007] Below the upper spraying pipe group, there is an upper liquid drainage port for collecting spraying liquid. The upper liquid drainage port is communicated with the upper water seal tank through a pipeline. The upper water seal tank is communicated with the upper condensate tank through a pipeline. Below the bottom spraying pipe group, there is a lower liquid drainage port for collecting spraying liquid. The lower liquid drainage port is communicated with the lower water seal tank through a pipeline. The lower water seal tank is communicated with the lower condensate tank through a pipeline;

[0008] The upper liquid drainage port and the lower liquid drainage port are also communicated with the washing liquid water seal tank through a pipeline. The liquid outlet of the washing liquid water seal tank is communicated with the liquid inlet of the mechanical ammonia water clarifying tank through a pipeline.

[0009] Further, the top spraying pipe group, the upper spraying pipe group and the bottom spraying pipe group respectively include spraying branch pipes and spraying main pipes. The spraying branch pipes include spraying horizontal pipes and spraying vertical pipes, and the spraying horizontal pipes are communicated with the spraying vertical pipes through elbows.

[0010] Further, the elbow is a detachable 90-degree elbow. By providing this 90-degree elbow, the spraying horizontal pipe and the spraying vertical pipe can be disassembled, and then the spraying horizontal pipe and the spraying vertical pipe can be manually cleaned separately.

[0011] Further, each spraying main pipe is communicated with 8 spraying branch pipes.

[0012] Further, the ammonia water tank is filled with ammonia water at 72 °C.

[0013] Further, an upper-stage condensate pump is provided on the first pipeline, and a lower-stage condensate pump is provided on the fifth pipeline.

[0014] A circulating ammonia water pump is provided on the fourth pipeline.

[0015] Further, the upper liquid discharge port is communicated with an upper liquid discharge pipe arranged outside the horizontal tube primary cooler, and the upper liquid discharge pipe is communicated with the washing liquid water seal tank through a second pipeline; the lower liquid discharge port is communicated with a lower liquid discharge pipe arranged outside the horizontal tube primary cooler, and the lower liquid discharge pipe is communicated with the washing liquid water seal tank through a third pipeline.

[0016] Further, the liquid outlet of the washing liquid water seal tank is communicated with the liquid inlet of the mechanical ammonia water clarifying tank through a seventh pipeline.

[0017] The utility model has the following beneficial effects:

[0018] 1. The device for reducing the resistance of the primary cooler provided by the utility model can spray circulating ammonia water on the top, upper part and lower part, which is suitable for the spraying cleaning of large horizontal tube primary coolers. The three sections of the horizontal tube primary cooler are cleaned and the resistance is reduced by circulating ammonia water. After cleaning, the spraying liquid enters the washing liquid water seal tank and then enters the mechanical ammonia water clarifying tank for separation and sedimentation, thereby reducing the running resistance of the gas in the horizontal tube primary cooler.

[0019] 2. The device for reducing the resistance of the primary cooler provided by the utility model sets the spraying horizontal pipes and spraying vertical pipes of the top spraying pipe group, the upper spraying pipe group and the bottom spraying pipe group in a 90° right-angle connection relationship. The spraying horizontal pipes and spraying vertical pipes are connected through 90-degree elbows. When the spraying branch pipes are blocked, the 90-degree elbows are disassembled, and the spraying branch pipes are cleaned with cleaning tools. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the device for reducing the resistance of the primary cooler of the present utility model;

[0021] Figure 2 This is a schematic structural diagram of the upper spraying pipe group of the present utility model.

[0022] In the figure: 1 - horizontal pipe primary cooler, 2 - top spraying pipe group, 3 - upper spraying pipe group, 4 - upper liquid discharge port, 5 - bottom spraying pipe group, 6 - lower liquid discharge pipe, 7 - spraying horizontal pipe, 8 - second pipeline, 9 - third pipeline, 10 - elbow, 11 - spraying vertical pipe, 12 - first pipeline, 13 - upper section condensate pump, 14 - fourth pipeline, 15 - circulating ammonia water pump, 16 - fifth pipeline, 17 - lower section condensate pump, 18 - upper section water seal tank, 19 - washing liquid water seal tank, 20 - lower section water seal tank, 21 - upper section condensate tank, 22 - lower section condensate tank, 23 - mechanical ammonia water clarifying tank, 24 - sixth pipeline, 25 - seventh pipeline, 26 - eighth pipeline, 27 - ninth pipeline, 28 - ammonia water tank, 29 - upper liquid discharge pipe, 30 - lower liquid discharge port. Specific embodiments

[0023] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with specific embodiments.

[0024] Embodiment 1

[0025] This embodiment provides a device for reducing the resistance of the primary cooler, as Figure 1 shown. The device includes a horizontal pipe primary cooler 1, and a spraying pipe group is provided in the horizontal pipe primary cooler 1. The spraying pipe group is successively arranged from top to bottom as a top spraying pipe group 2, an upper spraying pipe group 3, and a bottom spraying pipe group 5. An upper section water seal tank 18, a lower section water seal tank 20, a washing liquid water seal tank 19, an upper section condensate tank 21, a lower section condensate tank 22, an ammonia water tank 28, and a mechanical ammonia water clarifying tank 23 are provided outside the horizontal pipe primary cooler 1.

[0026] The top spraying pipe group 2, the upper spraying pipe group 3, and the bottom spraying pipe group 5 are communicated with the water outlet of the ammonia water tank 28 through the ninth pipeline 27 and the fourth pipeline 14. A circulating ammonia water pump 15 is provided on the fourth pipeline 14, and 72°C ammonia water is contained in the ammonia water tank. The upper spraying pipe group 3 is communicated with the water outlet of the upper section condensate tank 21 through the first pipeline 12, and an upper section condensate pump 13 is provided on the first pipeline 12. The bottom spraying pipe group 5 is communicated with the water outlet of the lower section condensate tank 22 through the fifth pipeline 16, and a lower section condensate pump 17 is provided on the fifth pipeline 16.

[0027] Below the upper spraying pipe group 3, there is an upper liquid discharge port 4 for collecting the spraying liquid. The upper liquid discharge port 4 is communicated with an upper liquid discharge pipe 29 arranged outside the horizontal tube primary cooler 1. The upper liquid discharge pipe 29 is communicated with the upper water seal tank 18 through a pipeline. The upper liquid discharge pipe 29 is also communicated with the washing liquid water seal tank 19 through a second pipeline 8. The upper water seal tank 18 is communicated with the upper condensate tank 21 through an eighth pipeline 26. The upper liquid discharge ports 4 are symmetrically arranged on both sides of the side wall of the horizontal tube primary cooler 1. The final spraying liquid is discharged from the horizontal tube primary cooler 1 through the two symmetrically arranged upper liquid discharge ports 4, enters the upper liquid discharge pipe 29, and finally enters the upper water seal tank 18 or the washing liquid water seal tank 19.

[0028] Below the bottom spraying pipe group 5, there is a lower liquid discharge port 30 for collecting the spraying liquid. The lower liquid discharge port 30 is communicated with a lower liquid discharge pipe 6 arranged outside the horizontal tube primary cooler 1. The lower liquid discharge pipe 6 is communicated with the lower water seal tank 20 through a pipeline. The lower liquid discharge pipe 6 is also communicated with the washing liquid water seal tank 19 through a third pipeline 9. The lower water seal tank 20 is communicated with the lower condensate tank 22 through a sixth pipeline 24. The number of the lower liquid discharge ports 30 is one, which is arranged on the side wall of the bottom of the horizontal tube primary cooler 1. The final spraying liquid is discharged from the horizontal tube primary cooler 1 through the lower liquid discharge port 30, enters the lower liquid discharge pipe 6, and finally enters the lower water seal tank 20 or the washing liquid water seal tank 19.

[0029] The liquid outlet of the washing liquid water seal tank 19 is communicated with the liquid inlet of the mechanized ammonia water clarifying tank 23 through a seventh pipeline 25.

[0030] For the spraying pipe group, as Figure 2 shown, the top spraying pipe group 2, the upper spraying pipe group 3 and the bottom spraying pipe group 5 respectively include spraying branch pipes and spraying main pipes. The spraying branch pipes include spraying horizontal pipes 7 and spraying vertical pipes 11. The spraying horizontal pipes 7 and the spraying vertical pipes 11 are connected by elbows. The elbow 11 is a detachable 90-degree elbow. By setting the 90-degree elbow, the spraying horizontal pipe 7 and the spraying vertical pipe 11 can be disassembled, and then the spraying horizontal pipe 7 and the spraying vertical pipe 11 can be manually cleaned separately. Each spraying main pipe is communicated with 8 spraying branch pipes.

[0031] The working principle of the device for reducing the resistance of the primary cooler is specifically explained as follows:

[0032] When the horizontal tube primary cooler 1 operates normally, the upper condensate pump 13 extracts the circulating liquid from the upper condensate tank 21 and sends it to the upper spray pipe group 3 to spray and wash the upper section of the horizontal tube primary cooler 1. The lower condensate pump 17 extracts the circulating liquid from the lower condensate tank 22 and sends it to the lower spray pipe group 5 to spray and wash the lower section of the horizontal tube primary cooler 1. The upper condensate enters the upper water seal tank 18 through the upper drain pipe 29 and then enters the upper condensate tank 21. The lower condensate enters the lower water seal tank 20 through the lower drain pipe 6 and then enters the lower condensate tank 22, and so on to achieve the purpose of cooling the hot gas.

[0033] When the resistance of the horizontal tube primary cooler 1 rises, stop the operation of the horizontal tube primary cooler 1, stop spraying the upper and lower condensate, and close the valves of the upper drain pipe 29 and the lower drain pipe 6 leading to the upper water seal tank 18 and the lower water seal tank 19. Open the valve of the circulating ammonia pump 15 leading to the top spray pipe group 2, and the circulating ammonia water sprays and washes the top of the horizontal tube primary cooler 1. The washing liquid enters the upper drain pipe 29 through the upper drain port 4, then enters the washing liquid water seal tank 19, and then enters the mechanized ammonia water clarifying tank 23; then, open the valve of the circulating ammonia pump 15 leading to the upper spray pipe group 3, and the circulating ammonia water sprays and washes the upper part of the horizontal tube primary cooler 1. The washing liquid enters the upper drain pipe 29 through the upper drain port 4, then enters the washing liquid water seal tank 19, and then enters the mechanized ammonia water clarifying tank 23; finally, open the valve of the circulating ammonia pump 15 leading to the bottom spray pipe group 5, and the circulating ammonia water sprays and washes the lower part of the horizontal tube primary cooler 1. The washing liquid enters the lower drain pipe 6 through the lower drain port 30, then enters the washing liquid water seal tank 19 and then enters the mechanized ammonia water clarifying tank 23. By spraying and washing the three sections of the horizontal tube primary cooler 1 with circulating ammonia water, the resistance of the horizontal tube primary cooler 1 is reduced.

[0034] When there is still a relatively high resistance after the above-mentioned hot ammonia water cleaning of the horizontal tube primary cooler 1, the 90-degree elbow connecting the spray horizontal tube 7 and the spray vertical tube 11 can be disassembled, and then the spray horizontal tube 7 and the spray vertical tube 11 can be manually cleaned to remove the impurities that cannot be removed by the hot ammonia water. After the cleaning is completed, reinstall the spray horizontal tube 7 and the spray vertical tube 11, so as to achieve the purpose of thoroughly reducing the resistance of the horizontal tube primary cooler 1.

[0035] It should be noted that the above embodiments are only used to illustrate the technical concept and features of the present invention. The horizontal, vertical, upper, and lower described therein are all corresponding to the drawings of the present invention and are not used to limit specific content. The purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly, and it cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the protection scope of the present invention.

Claims

1. A device for reducing the resistance of a primary cooler, the device comprising a transverse tube primary cooler (1), wherein a top spray pipe group (2), an upper spray pipe group (3) and a bottom spray pipe group (5) are sequentially arranged in the transverse tube primary cooler (1) from top to bottom, characterized in that: The cross-tube primary cooler (1) is externally provided with an upper water seal tank (18), a lower water seal tank (20), a washing liquid water seal tank (19), an upper condensate tank (21), a lower condensate tank (22), an ammonia water tank (28) and a mechanized ammonia water clarification tank (23); The top spray pipe group (2), the upper spray pipe group (3) and the bottom spray pipe group (5) are connected to the ammonia water tank (28) via the ninth pipeline (27) and the fourth pipeline (14); the upper spray pipe group (3) is connected to the upper condensate tank (21) via the first pipeline (12); and the bottom spray pipe group (5) is connected to the lower condensate tank (22) via the fifth pipeline (16); An upper liquid withdrawal port (4) for collecting spray liquid is provided below the upper spray pipe group (3), the upper liquid withdrawal port (4) is connected to the upper water seal groove (18) through a pipeline, and the upper water seal groove (18) is connected to the upper condensate groove (21) through a pipeline; a lower liquid withdrawal port (30) for collecting spray liquid is provided below the bottom spray pipe group (5), the lower liquid withdrawal port (30) is connected to the lower water seal groove (20) through a pipeline, and the lower water seal groove (20) is connected to the lower condensate groove (22) through a pipeline; The upper liquid withdrawal port (4) and the lower liquid withdrawal port (30) are also connected to the washing liquid water seal tank (19) through a pipeline, and the liquid outlet of the washing liquid water seal tank (19) is connected to the liquid inlet of the mechanized ammonia water clarification tank (23) through a pipeline.

2. The device for reducing the resistance of the primary cooler according to claim 1, characterized in that: The top spray pipe group (2), the upper spray pipe group (3) and the bottom spray pipe group (5) respectively comprise a spray branch pipe and a spray main pipe, the spray branch pipe comprises a spray horizontal pipe (7) and a spray vertical pipe (11), and the spray horizontal pipe (7) and the spray vertical pipe (11) are connected via an elbow (10).

3. The device for reducing the resistance of the primary cooler according to claim 2, characterized in that: The elbow (10) is a detachable 90-degree elbow.

4. The device for reducing the resistance of the primary cooler according to claim 2, characterized in that: Each spray main pipe is connected with 8 spray branch pipes.

5. The device for reducing the resistance of a primary cooler according to claim 1, characterized in that: The ammonia water tank (28) is filled with ammonia water at 72°C.

6. The device for reducing the resistance of a primary cooler according to claim 1, characterized in that: The first pipeline (12) is provided with an upper condensate pump (13), the fifth pipeline (16) is provided with a lower condensate pump (17), and the fourth pipeline (14) is provided with a circulating ammonia water pump (15).

7. The device for reducing the resistance of a primary cooler according to claim 1, characterized in that: The upper liquid withdrawal port (4) is in communication with an upper liquid withdrawal pipe (29) arranged outside the transverse tube primary cooler (1), and the upper liquid withdrawal pipe (29) is in communication with a washing liquid water seal groove (19) via a second pipeline (8); the lower liquid withdrawal port (30) is in communication with a lower liquid withdrawal pipe (6) arranged outside the transverse tube primary cooler (1), and the lower liquid withdrawal pipe (6) is in communication with a washing liquid water seal groove (19) via a third pipeline (9).

8. The device for reducing the resistance of a primary cooler according to claim 1, characterized in that: The liquid outlet of the washing liquid water seal tank (19) is connected to the liquid inlet of the mechanized ammonia water clarification tank (23) via a seventh pipeline (25).

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