A three-cylinder single-acting high-temperature anticorrosion diaphragm pump cooling device applied to coal tar conveying

Abstract

The utility model relates to a three -cylinder single -action high temperature anticorrosive diaphragm pump cooling device applied to coal tar delivery belongs to diaphragm pump technical field, concretely relates to a three -cylinder single -action high temperature anticorrosive diaphragm pump cooling device applied to coal tar delivery, the utility model provides a small, cooling effect is even, inside has the disturbance effect, is convenient for maintenance, and is applicable to the high temperature diaphragm pump cooling device of coal tar delivery working condition, the utility model discloses a static mixer and cooler, its characterized in that: static mixer includes end plate, is provided with through -hole on end plate, and the one side center of end plate is provided with cylinder, and the surface of cylinder is arranged with the thin plate along the length direction of cylinder.

Description

Technical Field

[0001] This utility model belongs to the field of diaphragm pump technology, specifically relating to a cooling device for a three-cylinder single-acting high-temperature corrosion-resistant diaphragm pump used in coal tar transportation. Background Technology

[0002] Coal tar is characterized by high viscosity, poor lubricity, and easy condensation, typically requiring transportation under high-temperature conditions. During high-temperature diaphragm pump transport, if the heat of the coal tar is directly transferred to the diaphragm and other rubber components, it can damage the diaphragm. Therefore, isolation and cooling devices are needed between the inlet / outlet devices and the diaphragm chamber to maintain the coal tar within the permissible temperature range and ensure a safe operating environment for the diaphragm. Simultaneously, to prevent coal tar from condensing during transport, turbulence must be introduced during flow, and sudden temperature drops in the coal tar must be avoided.

[0003] Existing high-temperature diaphragm pump cooling devices are typically single-tube shell-and-tube structures with smooth, straight inner tubes lacking a stirring device. This leads to coal tar easily condensing inside the tubes, resulting in low heat transfer efficiency. To meet heat transfer requirements, large-volume cooling devices are often needed, which not only occupy plant space but also increase production costs and maintenance difficulties. Utility Model Content

[0004] This invention addresses the aforementioned problems by providing a high-temperature diaphragm pump cooling device that is small in size, provides uniform cooling, has internal disturbance function, is easy to maintain, and is suitable for coal tar transportation applications.

[0005] This utility model adopts the following technical solution: It includes a static mixer and a cooler, characterized in that: the static mixer includes an end plate with a through hole; a column is positioned at the center of one side of the end plate; thin plates are arranged alternately along the length of the column on its surface; the cooler includes an inner tube flange; the end plate is fixed to one side of the inner tube flange; the other side of the inner tube flange is connected to one end of a long inner tube via a sleeve; an inner tube flange is also provided on the other side of the long inner tube; the column passes through the inner tube flange and corresponds to the sleeve; a cooling water jacket is provided outside the long inner tube, and fins are provided on the outer surface of the long inner tube.

[0006] As a preferred embodiment of this utility model, the sleeve includes an inner tube short pipe and an inner tube tee connected to each other. The inner tube short pipe is connected to the inner tube flange, and the inner tube tee is connected to the inner tube long pipe. A screw plug is provided on the inner tube tee.

[0007] As another preferred embodiment of this utility model, one end of the inner tube with the static mixer is the inlet end, and the other end of the inner tube is the outlet end. An inner tube four-way is provided between the outlet end of the inner tube and the inner tube flange, and a screw plug is also provided on the inner tube four-way.

[0008] As a third preferred embodiment of the present invention, the cooling water jacket includes outer shell end caps disposed at both ends of the inner tube, with inlet and outlet water ports respectively disposed on the two outer shell end caps; an outer tube is disposed between the two outer shell end caps.

[0009] Furthermore, the outer tube includes a short outer tube connected to an outer shell end cap, the short outer tube being connected to an outer shell bellows, the outer shell bellows being connected to an outer shell long tube, and the outer shell long tube being connected to another outer shell end cap.

[0010] Furthermore, thermometers are installed on both end caps of the outer casing.

[0011] The beneficial effects of this utility model are as follows: 1. Anti-condensation and enhanced heat transfer: This utility model is equipped with a static mixer, which uses a thin plate to divide and stir the coal tar, generating eddies and strong shear force to prevent coal tar from condensing, while improving the heat transfer coefficient and heat exchange efficiency.

[0012] 2. Improved cooling capacity and reduced size: Spiral fins are installed on the outer wall of the inner tube to increase the heat transfer area and accelerate the flow rate of cooling water, thereby improving the heat exchange capacity, reducing the size of the cooling device, saving installation space, and reducing production costs.

[0013] 3. Protecting the diaphragm: This invention is applied to diaphragm pump systems and can effectively absorb heat, preventing high-temperature media from affecting the diaphragm's lifespan.

[0014] 4. Easy to maintain: The static mixer has a simple structure and is independently set up, making it easy to disassemble, clean and maintain.

[0015] 5. By incorporating corrugated pipes to absorb thermal deformation, the thermal stress on the outer casing is reduced.

[0016] 6. Operation can be monitored: Thermometers are installed on the outer casing end caps before and after the cooler, which can monitor the coal tar temperature in real time and control the operating status by adjusting the cooling water volume.

[0017] 7. Facilitates maintenance and shutdown: The internal pipe tee and internal pipe cross are provided, which can promptly drain the coal tar in the cooler during maintenance or long-term shutdown to prevent condensation and blockage due to temperature drop. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is the appearance drawing of this utility model.

[0020] Figure 3 This is a schematic diagram of a static mixer.

[0021] Figure 4 This is a schematic diagram of the cooler.

[0022] In the attached diagram, 1 is a static mixer, 2 is an octagonal gasket, 3 is a cooler, 4 is a nut, 5 is a bolt, 6 is a screw plug, 7 is a thermometer, 8 is a manual valve, 9 is a metal spiral wound gasket, 10 is an end plate, 11 is a column, 12 is a thin plate, 13 is an inner tube flange, 14 is an inner tube short pipe, 15 is an inner tube tee, 16 is an inner tube long pipe, 17 is an outer shell end cap, 18 is an outer shell short pipe, 19 is an outer shell bellows, 20 is an outer shell long pipe, 21 is a fin, and 22 is an inner tube four-way connector. Detailed Implementation

[0023] This utility model includes a static mixer 1 and a cooler 3. The static mixer 1 includes an end plate 10 with a through hole. A column 11 is located at the center of one side of the end plate 10, and thin plates 12 are arranged alternately along the length of the column 11. The cooler 3 includes an inner tube flange 13. The end plate 10 is fixed to one side of the inner tube flange 13, and the other side of the inner tube flange 13 is connected to one end of an inner tube long pipe 16 through a sleeve. An inner tube flange 13 is also provided on the other side of the inner tube long pipe 16. The column 11 passes through the inner tube flange 13 and corresponds to the sleeve. A cooling water jacket is provided outside the inner tube long pipe 16, and fins 21 are provided on the outer surface of the inner tube long pipe 16. By providing alternate thin plates 12 on the surface of the column 11, the coal tar is cut and stirred during the flow process, forming a vortex, preventing condensation, and improving the heat transfer coefficient. The fins 21 on the outer surface of the inner tube increase the heat exchange area, improve the cooling efficiency, and reduce the volume of the cooling device.

[0024] The sleeve includes an inner tube short pipe 14 and an inner tube tee 15 connected to each other. The inner tube short pipe 14 is connected to the inner tube flange 13, and the inner tube tee 15 is connected to the inner tube long pipe 16. A screw plug 6 is provided on the inner tube tee 15. By providing a screw plug 6 on the inner tube tee 15, it is convenient to operate during maintenance or cleaning, thereby improving the convenience and reliability of maintenance.

[0025] The inner tube 16 has one end connected to the static mixer 1 as the inlet and the other end as the outlet. An inner tube four-way connector 22 is installed between the outlet end of the inner tube 16 and the inner tube flange 13, and a screw plug 6 is also installed on the inner tube four-way connector 22. The installation of the inner tube four-way connector 22 and the screw plug 6 at the outlet end allows residual coal tar to be discharged during shutdown or maintenance, preventing condensation and blockage, and improving the stability of equipment operation.

[0026] The cooling water jacket includes outer end caps 17 disposed at both ends of the inner tube 16, with inlet and outlet ports respectively provided on the two outer end caps 17; an outer tube is disposed between the two outer end caps 17. By providing inlet and outlet ports on the outer end caps 17, cooling water can flow along the cooling water jacket and exchange heat efficiently with the coal tar in the inner tube. The structure is compact, the heat transfer is uniform, and the coal tar is prevented from condensing due to localized overcooling.

[0027] The outer tube includes a short outer tube 18 connected to an outer shell end cap 17, the short outer tube 18 connected to an outer shell bellows 19, the outer shell bellows 19 connected to an outer shell long tube 20, and the outer shell long tube 20 connected to another outer shell end cap 17. By providing the outer shell bellows 19, thermal deformation caused by the temperature difference between hot and cold media can be absorbed, reducing the thermal stress of the outer shell and improving the sealing performance and durability of the device.

[0028] Thermometers 7 are installed on both end caps 17 of the outer casing. By installing thermometers 7 at both ends of the cooling water jacket, the inlet and outlet temperatures of the coal tar can be monitored in real time, which facilitates the adjustment of the cooling water volume, ensures that the coal tar is in a suitable temperature range, and improves the controllability of the system operation.

[0029] Example: This utility model includes a static mixer 1, an octagonal gasket 2, a cooler 3, a nut 4, a bolt 5, a screw plug 6, a thermometer 7, a manual valve 8, and a metal spiral wound gasket 9. The static mixer 1 includes an end plate 10, a column 11, and a thin plate 12; the cooling device 3 includes an inner tube flange 13, an inner tube short pipe 14, an inner tube tee 15, an inner tube long pipe 16, an outer shell end cap 17, an outer shell short pipe 18, an outer shell corrugated pipe 19, an outer shell long pipe 20, fins 21, and an inner tube four-way connector 22. The feature is that: the end plate 10 of the static mixer 1 is sandwiched between the isolator flange and the inner pipe flange 13; the end plate 10 and the isolator flange, and the end plate 10 and the inner pipe flange 13 are connected by nuts 4 and bolts 5 at the sealing points, and the sealing element is an octagonal gasket 2. The inner pipe flange 13 and the elbow flange are connected by nuts 4 and bolts 5 at the sealing points, and the sealing element is a spiral wound gasket 9.

[0030] The screw plugs 6 are installed on the upper part of the inner tube tee 15 and the inner tube cross 22 respectively. The thermometer 7 is installed on the upper part of the outer casing end cap 17. The manual valve 8 is installed on the lower part of the inner tube cross 22. The manual valve 8 is normally closed and is opened during maintenance.

[0031] The cooler 3 is equipped with a static mixer 1. The end of the static mixer 1 is an end plate 10 with four through holes, which is sandwiched between the inner tube flange 13 and the isolation device flange. The other end of the mixer is a column 11. Eight parallel thin plates 12 are welded to the outside of the column 11. The eight parallel thin plates 12 are 1 / 4 circle in shape. Each parallel thin plate 12 is arranged in a clockwise direction, rotating 90° in sequence.

[0032] The inner pipe flange 13, inner pipe short pipe 14, inner pipe tee 15, inner pipe long pipe 16, inner pipe cross 22, and inner pipe flange 13 are welded sequentially from the high-temperature zone to the low-temperature zone of the coal tar. Fins 21, with a spiral structure, are welded to the outside of the inner pipe long pipe 16. The outer shell end cap 17, outer shell long pipe 20, outer shell bellows 19, outer shell short pipe 18, and outer shell end cap 17 are welded sequentially in the direction of cooling water flow. The outer shell end cap 17 is welded to the outside of the inner pipe long pipe 16.

[0033] It is understood that the above specific description of this utility model is only used to illustrate this utility model and is not limited to the technical solutions described in the embodiments of this utility model. Those skilled in the art should understand that modifications or equivalent substitutions can still be made to this utility model to achieve the same technical effect; as long as the use needs are met, they are all within the protection scope of this utility model.

Claims

1. A cooling device for a three-cylinder single-acting high-temperature corrosion-resistant diaphragm pump used in coal tar transportation, comprising a static mixer (1) and a cooler (3), characterized in that: The static mixer (1) includes an end plate (10), which has a through hole. A column (11) is provided at the center of one side of the end plate (10). Thin plates (12) are arranged alternately along the length of the column (11). The cooler (3) includes an inner tube flange (13). The end plate (10) is fixed to one side of the inner tube flange (13). The other side of the inner tube flange (13) is connected to one end of the inner tube long pipe (16) through a sleeve. An inner tube flange (13) is also provided on the other side of the inner tube long pipe (16). The column (11) passes through the inner tube flange (13) and corresponds to the sleeve. A cooling water jacket is provided outside the inner tube long pipe (16). Fins (21) are provided on the outer surface of the inner tube long pipe (16).

2. The cooling device for a three-cylinder single-acting high-temperature corrosion-resistant diaphragm pump used in coal tar transportation according to claim 1, characterized in that: The sleeve includes an inner tube short pipe (14) and an inner tube tee (15) connected to each other. The inner tube short pipe (14) is connected to the inner tube flange (13), and the inner tube tee (15) is connected to the inner tube long pipe (16). A screw plug (6) is provided on the inner tube tee (15).

3. The cooling device for a three-cylinder single-acting high-temperature corrosion-resistant diaphragm pump used in coal tar transportation according to claim 1, characterized in that: The inner tube (16) has a static mixer (1) at one end as the inlet end and the inner tube (16) at the other end as the outlet end. An inner tube cross (22) is provided between the outlet end of the inner tube (16) and the inner tube flange (13), and a screw plug (6) is also provided on the inner tube cross (22).

4. The cooling device for a three-cylinder single-acting high-temperature corrosion-resistant diaphragm pump used in coal tar transportation according to claim 1, characterized in that: The cooling water jacket includes outer shell end caps (17) located at both ends of the inner tube (16), with inlet and outlet water ports respectively provided on the two outer shell end caps (17); an outer tube is provided between the two outer shell end caps (17).

5. A cooling device for a three-cylinder single-acting high-temperature corrosion-resistant diaphragm pump used in coal tar transportation according to claim 4, characterized in that: The outer tube includes a short outer tube (18) connected to an outer shell end cap (17), the short outer tube (18) being connected to an outer shell corrugated tube (19), the outer shell corrugated tube (19) being connected to an outer shell long tube (20), and the outer shell long tube (20) being connected to another outer shell end cap (17).

6. A cooling device for a three-cylinder single-acting high-temperature corrosion-resistant diaphragm pump used in coal tar transportation according to claim 5, characterized in that: Thermometers (7) are provided on both outer shell end caps (17).

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