CN210321344U

CN210321344U - Heat exchange plate for chemical industry

Info

Publication number: CN210321344U
Application number: CN201921279451.8U
Authority: CN
Inventors: 李昱; 刘颖异
Original assignee: Linyi University
Current assignee: Linyi University
Priority date: 2019-08-08
Filing date: 2019-08-08
Publication date: 2020-04-14
Anticipated expiration: 2029-08-08

Abstract

The application discloses a heat exchange plate for chemical engineering, which belongs to the field of chemical equipment and is used for chemical heat exchange, wherein a cover body is covered on the top of a heat exchange box, a liquid inlet pipe is arranged at one end of the heat exchange box, a liquid outlet pipe is arranged at the other end of the heat exchange box, a main heat exchange plate and a secondary heat exchange plate are distributed in the heat exchange box between the liquid inlet pipe and the liquid outlet pipe, the main heat exchange plate and the secondary heat exchange plate are both plate body structures with cavities, a cooling inlet pipe and a cooling outlet pipe which are communicated with the cavities are arranged at the top of the plate body structures, a plurality of heat exchange through holes which are communicated with the plate body structures are distributed on the plate body structures; the number of the heat exchange through holes on the main heat exchange plate is less than that of the heat exchange through holes on the secondary heat exchange plate. In view of above-mentioned technical scheme, this application can improve heat transfer area under the succinct condition of retaining structure, improves heat exchange efficiency, and then improves energy utilization.

Description

Heat exchange plate for chemical industry

Technical Field

The application belongs to the chemical industry equipment field, and specifically speaking especially relates to a heat transfer board for chemical industry.

Background

The heat exchanger is the most commonly used equipment in chemical production activities, and can improve the liquid-liquid heat exchange efficiency and achieve the aim of higher heat energy utilization rate. Because the heat exchanger is an energy-saving device for transferring heat by utilizing fluids with different temperatures, how to increase the heat exchange area in the using process of the heat exchanger improves the heat exchange efficiency and further improves the energy utilization rate, and the heat exchanger becomes a technical problem to be solved by many heat exchanger production enterprises.

Disclosure of Invention

An object of this application is to provide a heat transfer board for chemical industry, it can improve heat transfer area under the succinct condition of retaining structure, improves heat exchange efficiency, and then improves energy utilization rate.

In order to achieve the purpose, the method is realized by the following technical scheme:

the heat exchange plate for the chemical industry comprises a heat exchange box, wherein a cover body is covered at the top of the heat exchange box, one end of the heat exchange box is provided with a liquid inlet pipe, the other end of the heat exchange box is provided with a liquid outlet pipe, a main heat exchange plate and a secondary heat exchange plate are distributed in the heat exchange box between the liquid inlet pipe and the liquid outlet pipe, the main heat exchange plate and the secondary heat exchange plate are both plate body structures with cavities, the top of each plate body structure is provided with a cooling inlet pipe and a cooling outlet pipe communicated with the cavities, a plurality of heat exchange through holes penetrating through the plate body structures are distributed on the plate body structures, and heat exchange pipes are fixed in the heat exchange through; the number of the heat exchange through holes on the main heat exchange plate is less than that of the heat exchange through holes on the secondary heat exchange plate.

Further, the application in the top both ends of plate body structure be provided with the fixed plate of outside extension, the fixed plate is fixed with the heat transfer case.

Further, the heat exchange tube position in this application be the reducing section for plate body structure cavity's position, the both ends of reducing section are cylindrical body structure.

Further, in this application the lateral wall of heat transfer case on process the recess, processing on the heat transfer incasement wall of recess both sides has spacing lug, spacing lug and main heat transfer board, inferior heat transfer board have the side contact of heat transfer through-hole, recess and fixed plate block.

Further, the outside cladding of heat transfer case described in this application has thermal-insulated cotton.

Compared with the prior art, the beneficial effects of this application are:

the heat exchange structure is reasonably arranged, so that the heat exchange area of liquid-liquid heat exchange can be effectively increased, the heat exchange efficiency is improved, and the utilization rate of heat energy is further improved. And the heat exchange structure of this application can be convenient for nimble adjustment and equipment to deal with different heat transfer demands.

Drawings

Fig. 1 is a schematic view of the overall structure of the present application.

Fig. 2 is a schematic view of the internal structure of the present application.

Fig. 3 is a schematic view of a secondary heat exchanger plate according to the present application.

Fig. 4 is a schematic view of the construction of a heat exchange box according to the present application.

In the figure: 1. a cover body; 2. a heat exchange box; 3. a liquid inlet pipe; 4. cooling the inlet pipe; 5. cooling out the pipe; 6. a liquid outlet pipe; 7. a primary heat exchange plate; 8. a secondary heat exchange plate; 9. a fixing plate; 10. a recessed portion; 11. a plate body structure; 12. a heat exchange through hole; 13. a heat exchange pipe; 14. a groove; 15. and a limiting bump.

Detailed Description

The technical solutions described in the present application are further described below with reference to the accompanying drawings. It should be noted that the following paragraphs may refer to terms of orientation including, but not limited to, "upper, lower, left, right, front, rear", etc., which are based on the orientation shown in the drawings corresponding to the specification, and should not be construed as limiting the scope or technical solutions of the present application, but merely as facilitating better understanding of the technical solutions described in the present application by those skilled in the art.

As shown in fig. 1, the heat exchange box comprises a cubic heat exchange box 2, a cover body 1 is mounted at the top of the heat exchange box 2, and a welding or bolt fastening mode is adopted between the cover body 1 and the heat exchange box 2. When adopting the bolt-up mode to connect, need open on the lateral wall of lid 1 and heat transfer case 2 and have a plurality of corresponding screw holes for with bolt assembly cooperation. A sealing gasket is arranged at the connecting position of the cover body 1 and the heat exchange box 2.

As shown in figure 1, the left end and the right end of a heat exchange box 2 are respectively provided with a liquid inlet pipe 3 and a liquid outlet pipe 6, and the quantity of the liquid inlet pipe 3 and the liquid outlet pipe 6 can be a single pipe or more than two pipes, so that the liquid flow rate of heat exchange is determined according to actual needs. The liquid inlet pipe 3 and the liquid outlet pipe 6 are positioned at the position close to the bottom of the heat exchange box 2 and are connected with a liquid pipeline containing higher heat in a chemical system.

As shown in fig. 1, a plurality of cooling inlet pipes 4 and cooling outlet pipes 5 are arranged in pairs on the cover body 1, wherein the cooling inlet pipes 4 are used for introducing liquid to be heat exchanged into the main heat exchange plates 7 and the secondary heat exchange plates 8, and the cooling outlet pipes 5 are used for pumping out the liquid after heat exchange in the main heat exchange plates 7 and the secondary heat exchange plates 8 is completed through the pump body.

In the present application, as shown in fig. 2, a heat exchange structure in a heat exchange box 2 is shown, which comprises a primary heat exchange plate 7 and a plurality of secondary heat exchange plates 8 distributed in the length direction of the heat exchange box 2, wherein the primary heat exchange plate 7 is different from the secondary heat exchange plates 8 in the number of heat exchange through holes 12 distributed thereon. Generally, the number of heat exchanging through holes 12 distributed in the primary heat exchanger plate 7 is smaller than the number of heat exchanging through holes 12 in the secondary heat exchanger plate 8. And main heat transfer board 7 is the first heat transfer plate body that is close to feed liquor pipe 3, and after the liquid of high temperature entered into heat transfer case 2 through feed liquor pipe 3, under the effect of great flow, high temperature liquid can cross main heat transfer board 7 and then flow to a plurality of inferior heat transfer board 8. All be provided with undercut's depressed part 10 at the top of main heat transfer board 7 and inferior heat transfer board 8, the effect of depressed part 10 lies in increasing heat transfer area and provides the passageway for high temperature liquid overflows main heat transfer board 7, inferior heat transfer board 8.

As shown in fig. 2 and 3, the primary heat exchange plate 7 and the secondary heat exchange plate 8 have the same structure except that the number of the heat exchange through holes 12 is different. That is, the primary heat exchange plate 7 and the secondary heat exchange plate 8 each include a rectangular plate body structure 11, and fixing plates 9 extending outward are disposed on two sides of the rectangular plate body structure 11. The plate body structure 11 is a rectangular plate body with a cavity inside, a downward sunken depressed part 10 is arranged on the upper surface of the rectangular plate body, corresponding heat exchange through holes 12 are processed on the front side surface and the rear side surface of the rectangular plate body, the corresponding heat exchange through holes 12 are connected through heat exchange tubes 13, and the heat exchange tubes 13 are welded with the heat exchange through holes 12 in contact.

As shown in fig. 3, the heat exchange tube 13 is a hollow tube, and the heat exchange tube is a variable diameter tube and is located in the cavity of the plate structure 11 after being installed. The two ends of the reducing pipe body are cylindrical pipe body structures, the structures are arranged in the heat exchange through holes 12, a passage through which high-temperature liquid passes can be formed, and the high-temperature liquid flows through the main heat exchange plate 7 and the secondary heat exchange plate 8 through the heat exchange pipe 13.

As mentioned above, the inside of the main heat exchange plate 7 and the secondary heat exchange plate 8 in the present application is filled with the low temperature liquid for exchanging heat with the high temperature liquid, and after the high temperature liquid passes through the heat exchange tube 13, the low temperature liquid exchanges heat with the high temperature liquid through the tube wall of the heat exchange tube 13. Since the heat exchange tube 13 is structured as shown in fig. 3, both ends thereof are cylindrical tube body structures, and a reducer pipe is provided between the adjacent cylindrical tube body structures. The length of the cylindrical pipe body structure is the same as the wall thickness of the plate body structure 11, and the reducing pipe part is positioned in the cavity of the plate body structure 11. The reducing structure can help to increase the heat exchange area of low-temperature liquid passing through the heat exchange tube and high-temperature liquid, and further improves the heat exchange efficiency under the condition of low flow velocity.

As shown in fig. 4, in the present application, the heat exchange box 2 has a hollow cubic structure. Limiting lugs 15 perpendicular to the bottom surface are arranged on the inner wall of the heat exchange box 2, the limiting lugs 15 are arranged on the inner wall of the heat exchange box 2 in pairs, grooves 14 are formed in the heat exchange box 2 between the adjacent limiting lugs 15, and the grooves 14 are located on the top end face of the heat exchange box 2. The groove 14 described in this application is engaged with the fixing plate 9 to fix the primary and secondary heat exchange plates 7, 8 conveniently and prevent them from moving during the heat exchange process.

In this application, heat exchange box 2 after inserting main heat exchange plate 7, inferior heat exchange plate 8, the bottom surface of main heat exchange plate 7, inferior heat exchange plate 8 contacts with the bottom surface of heat exchange box 2, the side cooperation of main heat exchange plate 7, inferior heat exchange plate 8 and the side of heat exchange box 2 to make the high temperature liquid through heat exchange box 2 can only select to realize flowing through heat transfer through-hole 12 or cross depressed part 10.

It should be noted that fig. 1 to 4 in the present application are only schematic views, and in the process of actual use, a person skilled in the art may set the secondary heat exchange plates 8 with different numbers from those shown in the views in the inside of the heat exchange box 2, and set the intervals between the heat exchange plates according to actual use requirements, so as to achieve better heat exchange effect and heat exchange purpose.

Claims

1. The utility model provides a heat transfer board for chemical industry, includes heat transfer case (2), is stamped lid (1), its characterized in that at the top of heat transfer case (2): a liquid inlet pipe (3) is arranged at one end of the heat exchange box (2), a liquid outlet pipe (6) is arranged at the other end of the heat exchange box (2), a main heat exchange plate (7) and a secondary heat exchange plate (8) are distributed in the heat exchange box (2) between the liquid inlet pipe (3) and the liquid outlet pipe (6), the main heat exchange plate (7) and the secondary heat exchange plate (8) are both plate body structures (11) with cavities, a cooling inlet pipe (4) and a cooling outlet pipe (5) communicated with the cavities are arranged at the top of each plate body structure (11), a plurality of heat exchange through holes (12) penetrating through the plate body structures (11) are distributed on the plate body structures (11), and heat exchange pipes (13) are fixed in the heat exchange through holes (12); the number of the heat exchange through holes (12) on the main heat exchange plate (7) is less than that of the heat exchange through holes (12) on the secondary heat exchange plate (8).

2. The heat exchange plate for chemical engineering according to claim 1, wherein: and fixing plates (9) extending outwards are arranged at two ends of the top of the plate body structure (11), and the fixing plates (9) are fixed with the heat exchange box (2).

3. The heat exchange plate for chemical engineering according to claim 2, wherein: the heat exchange tube (13) is located the position of plate body structure (11) cavity and is the reducing section, and the both ends of reducing section are cylindrical body structure.

4. The heat exchange plate for chemical engineering according to claim 3, wherein: a groove (14) is formed in the side wall of the heat exchange box (2), limiting lugs (15) are formed in the inner walls of the heat exchange box (2) on the two sides of the groove (14), the limiting lugs (15) are in contact with the side faces, provided with heat exchange through holes (12), of the main heat exchange plate (7) and the secondary heat exchange plate (8), and the groove (14) is clamped with the fixing plate (9).

5. The heat exchange plate for chemical engineering according to claim 4, wherein: the heat exchange box (2) is coated with heat insulation cotton.