CN216558442U

CN216558442U - Heat exchange device

Info

Publication number: CN216558442U
Application number: CN202122837389.3U
Authority: CN
Inventors: 陈恩之; 谢毅; 赵风轩; 于彬; 徐令; 刘天宇; 董成苓
Original assignee: Chongqing Huafeng New Material Research Institute Co ltd; CHONGQING HUAFON CHEMICAL CO LTD
Current assignee: Chongqing Huafeng New Material Research Institute Co ltd; CHONGQING HUAFON CHEMICAL CO LTD
Priority date: 2021-11-18
Filing date: 2021-11-18
Publication date: 2022-05-17
Anticipated expiration: 2031-11-18

Abstract

A heat exchange device comprises two heat exchange coils and two heat exchangers, wherein the two heat exchange coils are uniformly distributed along a material space of production equipment, a medium outlet of the first heat exchange coil is connected with a medium inlet of the second heat exchange coil through a first pipeline, the first heat exchanger and a second pipeline, a medium outlet of the second heat exchange coil is connected with a medium inlet of the first heat exchanger through a third pipeline, the second heat exchanger and a fourth pipeline to form a circulating pipeline, and a circulating pump is arranged on the first pipeline and/or the second pipeline and/or the third pipeline and/or the fourth pipeline to form the heat exchange device in a combined mode. The utility model has simple structure and low processing cost, and can ensure uniform heat exchange of materials in the reaction equipment and ensure the product quality.

Description

Heat exchange device

Technical Field

The utility model relates to the field of chemical engineering, in particular to a heat exchange device.

Background

In the production process, chemical enterprises need to heat or cool production equipment such as a reaction kettle and the like so as to meet the requirements of material reaction.

At present, chemical enterprises heat up or cool down production equipment, generally utilize the setting at the inside heat exchange coil who directly contacts with the material of production equipment, perhaps utilize the heat transfer intermediate layer of setting on the production equipment table wall, through heat exchange coil or heat transfer intermediate layer of flowing through refrigerant or heat medium, realize the cooling or the intensification of material.

However, in the two heat exchange modes, along with the flow of the medium in the heat exchange coil or the heat exchange interlayer, the temperature of the medium gradually rises or falls, so that the temperature reduction or rise effect of the medium on the material in the reaction equipment at the rear section of the heat exchange coil or the rear section of the heat exchange interlayer is not obvious, the temperature of the material in the reaction equipment is unbalanced, the production requirement of fine chemistry industry is difficult to meet, and the quality of the product obtained by production is poor.

Therefore, how to design a heat exchange device with simple structure and uniform heat exchange is a problem to be solved urgently by those skilled in the art.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides a heat exchange device which is simple in structure and low in processing cost, and can ensure uniform heat exchange on materials in reaction equipment and ensure the product quality.

The technical scheme of the utility model is as follows: a heat exchange device comprises two heat exchange coils and two heat exchangers, wherein the two heat exchange coils are uniformly distributed along a material space of production equipment, a medium outlet of the first heat exchange coil is connected with a medium inlet of the second heat exchange coil through a first pipeline, the first heat exchanger and a second pipeline, a medium outlet of the second heat exchange coil is connected with a medium inlet of the first heat exchange coil through a third pipeline, the second heat exchanger and a fourth pipeline to form a circulating pipeline, and a circulating pump is arranged on the first pipeline and/or the second pipeline and/or the third pipeline and/or the fourth pipeline to form the heat exchange device in a combined mode.

The device further comprises a fifth pipeline, wherein the upstream end of the fifth pipeline is connected with the first pipeline, the downstream end of the fifth pipeline is connected with the second pipeline, and the fifth pipeline is provided with a first valve.

The device further comprises a sixth pipeline, the upstream end of the sixth pipeline is connected with the third pipeline, the downstream end of the sixth pipeline is connected with the fourth pipeline, and a second valve is arranged on the sixth pipeline.

Furthermore, a medium injection port is arranged on the first pipeline and/or the second pipeline and/or the third pipeline and/or the fourth pipeline, and the opening and the closing of the medium injection port are controlled by a third valve.

Preferably, the medium injection port is provided at the highest point of the circulation line.

Furthermore, a medium drain port is arranged on the first pipeline and/or the second pipeline and/or the third pipeline and/or the fourth pipeline, and the opening and the closing are controlled through a fourth valve.

Preferably, the medium drain port is provided at the lowest point of the circulation line.

The two heat exchange coil pipes are formed by connecting two heat exchange pipes in parallel and spirally coiling.

Adopt above-mentioned technical scheme to have following beneficial effect:

1. the heat exchange device comprises two heat exchange coil pipes and two heat exchangers, wherein the two heat exchange coil pipes are uniformly distributed along the material space of the production equipment, so that the heat exchange range of the heat exchange coil pipes covers the corresponding material space. The medium outlet of the first heat exchange coil is connected with the medium inlet of the second heat exchange coil through the first pipeline, the first heat exchanger and the second pipeline, the medium outlet of the second heat exchange coil is connected with the medium inlet of the first heat exchange coil through the third pipeline, the second heat exchanger and the fourth pipeline to form a circulating pipeline, namely, the heat exchange medium circularly flows in the closed circulating pipeline, the heat exchange medium firstly carries out heat exchange temperature rise/fall with the material in the space covered by the first heat exchange coil in the first heat exchange coil, then enters the first heat exchanger for carrying out heat exchange temperature fall/rise again, recovers the heat exchange capability, enters the second heat exchange coil, carries out heat exchange temperature rise/fall with the material in the space covered by the second heat exchange coil, and then recovers the heat exchange capability after carrying out heat exchange temperature fall/rise again by the second heat exchanger, get into first heat exchange coil inner loop and carry out the heat exchange, can effectively guarantee that the heat transfer capacity of the heat transfer medium in first heat exchange coil, the second heat exchange coil is the same, and then guarantee to the intensification/cooling ability of the material in the space that two heat exchange coils cover respectively the same for the material in the production facility intensifies the temperature/cools down evenly, and then guarantees product quality. The first pipeline and/or the second pipeline and/or the third pipeline and/or the fourth pipeline are/is provided with the circulating pump, the heat transfer medium is driven to flow in the circulating pipeline to transfer heat, the flow rate of the heat transfer medium can be controlled, the heat transfer speed of materials in the production equipment is further realized, and the actual requirements of enterprises are met.

2. The heat exchanger comprises a first pipeline, a second pipeline and a third pipeline, wherein the upstream end of the first pipeline is connected with the first pipeline, the downstream end of the second pipeline is connected with the second pipeline, a first valve is arranged on the first pipeline, the sixth pipeline is arranged, the upstream end of the third pipeline is connected with the third pipeline, the downstream end of the sixth pipeline is connected with the fourth pipeline, a second valve is arranged on the sixth pipeline, and when the first heat exchanger or the second heat exchanger breaks down or does not need to carry out fine heat exchange on production equipment, the first valve or the second valve can be opened by the aid of opening of the first valve or the second valve, so that a heat exchange medium bypasses the first heat exchanger or the second heat exchanger, and actual requirements of enterprises are met.

3. The medium injection port is arranged on the first pipeline and/or the second pipeline and/or the third pipeline and/or the fourth pipeline and is controlled to be opened and closed through the third valve, the medium injection port is arranged at the highest point of the circulating pipeline, heat exchange medium can be supplemented or replaced to the circulating pipeline through the medium injection port, the whole circulating pipeline can be filled without extra power, and the actual requirements of enterprises are met.

4. The medium liquid discharge port is formed in the first pipeline and/or the second pipeline and/or the third pipeline and/or the fourth pipeline and is controlled to be opened and closed through the fourth valve, the medium liquid discharge port is formed in the lowest point of the circulating pipeline, heat exchange media in the circulating pipeline can be discharged through the medium liquid discharge port, the heat exchange media in the whole circulating pipeline can be discharged completely without extra power, and actual requirements of enterprises are met.

The following description and the detailed description are further described with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic diagram of the connection of the present invention.

In the attached drawing, 1 is a heat exchange coil, 2 is a heat exchanger, 3 is a circulating pump, 4 is a medium liquid injection port, 5 is a medium liquid discharge port, 11 is a first pipeline, 12 is a second pipeline, 13 is a third pipeline, 14 is a fourth pipeline, 15 is a fifth pipeline, 16 is a sixth pipeline, a is a first valve, b is a second valve, c is a third valve, and d is a fourth valve.

Detailed Description

In the utility model, the equipment or the component which is not marked with a specific structure or model is generally conventional equipment or component in the chemical field, and the equipment or the component which is not marked with a specific connection mode is generally a conventional connection mode in the chemical field or a connection mode suggested by a manufacturer.

Referring to fig. 1, a particular embodiment of a heat exchange device is shown. The heat exchange device comprises two heat exchange coils 1 and two heat exchangers 2. Two heat exchange coil 1 along production facility's material space evenly distributed, for example, in vertical retort, these two heat exchange coil are along direction of height evenly distributed in vertical retort's inner space, and two heat exchange coil are connected in parallel by two heat exchange tubes and the spiral coils the shaping and obtains. A medium outlet of the first heat exchange coil is connected with a medium inlet of the second heat exchange coil through the first pipeline 11, the first heat exchanger and the second pipeline 12, in general, in order to meet actual requirements of enterprises, a fifth pipeline 15 is further arranged, an upstream end of the fifth pipeline 15 is connected with the first pipeline 11, a downstream end of the fifth pipeline 15 is connected with the second pipeline 12, a first valve a is arranged on the fifth pipeline 15, the first valve a is normally in a closed state, so that heat exchange medium needs to exchange heat through the first heat exchanger, when the first heat exchanger breaks down and needs to be overhauled or does not need to be used for exchanging heat, the first valve a is opened, and the heat exchange medium bypasses the first heat exchanger to circulate. A medium outlet of the second heat exchange coil is connected with a medium inlet of the second heat exchange coil through a third pipeline 13, a second heat exchanger and a fourth pipeline 14 to form a circulation pipeline, generally, in order to meet actual requirements of enterprises, a sixth pipeline 16 is further arranged, an upstream end of the sixth pipeline 16 is connected with the third pipeline 13, a downstream end of the sixth pipeline 16 is connected with the fourth pipeline 14, a second valve b is arranged on the sixth pipeline 16, and the second valve b is normally closed, so that heat exchange medium needs to exchange heat through the second heat exchanger, and when the second heat exchanger fails and needs to be overhauled or does not need to exchange heat through the second heat exchanger, the second valve b is opened, so that the heat exchange medium circulates around the second heat exchanger. The first pipeline 11 and/or the second pipeline 12 and/or the third pipeline 13 and/or the fourth pipeline 14 are provided with the circulating pump 3, and the circulating pump 3 is arranged on the fourth pipeline in the embodiment.

Furthermore, in order to meet the actual requirement, the first pipeline 11 and/or the second pipeline 12 and/or the third pipeline 13 and/or the fourth pipeline 14 are provided with a medium filling port 4, and the opening and the closing of the medium filling port are controlled by a third valve c, and the medium filling port 4 is usually arranged at the highest point of the circulating pipeline, and particularly in the embodiment, is arranged on the second pipeline.

Further, in order to meet the actual requirement, the medium drain port 5 is provided on the first pipeline 11 and/or the second pipeline 12 and/or the third pipeline 13 and/or the fourth pipeline 14, and is controlled to open and close by the fourth valve d, and normally, the medium drain port 5 is provided at the lowest point of the circulation pipeline, and specifically, in the present embodiment, the medium drain port is provided on the fourth pipeline.

According to actual requirements, a plurality of groups of heat exchange devices can be arranged in production equipment.

The working principle of the utility model is that taking heating materials in production equipment as an example, a heat exchange medium circularly flows in a closed circulating pipeline, the heat exchange medium firstly carries out heat exchange with the materials in the space covered by a first heat exchange coil pipe in a first heat exchange coil pipe to reduce the temperature, then enters the first heat exchanger to carry out heat exchange again to increase the temperature, recovers the heat exchange capability, enters a second heat exchange coil pipe to carry out heat exchange with the materials in the space covered by the second heat exchange coil pipe to reduce the temperature, then the second heat exchanger carries out heat exchange again to increase the temperature, recovers the heat exchange capability, enters the first heat exchange coil pipe to circularly carry out heat exchange, can effectively ensure that the heat exchange capability of the heat exchange medium in the first heat exchange coil pipe and the second heat exchange coil pipe is the same, further ensures that the temperature increasing capability of the materials in the spaces respectively covered by the two heat exchange coil pipes is the same, and the temperature of the materials in the production equipment is uniformly increased, thereby ensuring the product quality.

Claims

1. A heat exchange device characterized by: comprises two heat exchange coil pipes (1) and two heat exchangers (2),

the two heat exchange coil pipes (1) are evenly distributed along the material space of the production equipment,

the medium outlet of the first heat exchange coil is connected with the medium inlet of the second heat exchange coil through a first pipeline (11), a first heat exchanger and a second pipeline (12),

and a medium outlet of the second heat exchange coil is connected with a medium inlet of the first heat exchange coil through a third pipeline (13), the second heat exchanger and a fourth pipeline (14) to form a circulating pipeline, and a circulating pump (3) is arranged on the first pipeline (11) and/or the second pipeline (12) and/or the third pipeline (13) and/or the fourth pipeline (14) to form a heat exchange device in a combined manner.

2. The heat exchange device of claim 1, wherein: the pipeline device is characterized by further comprising a fifth pipeline (15), wherein the upstream end of the fifth pipeline (15) is connected with the first pipeline (11), the downstream end of the fifth pipeline (15) is connected with the second pipeline (12), and a first valve (a) is arranged on the fifth pipeline (15).

3. The heat exchange device of claim 1, wherein: the pipeline device is characterized by further comprising a sixth pipeline (16), wherein the upstream end of the sixth pipeline (16) is connected with the third pipeline (13), the downstream end of the sixth pipeline (16) is connected with the fourth pipeline (14), and a second valve (b) is arranged on the sixth pipeline (16).

4. The heat exchange device of claim 1, wherein: the first pipeline (11) and/or the second pipeline (12) and/or the third pipeline (13) and/or the fourth pipeline (14) are/is provided with a medium injection port (4) and are controlled to be opened and closed through a third valve (c).

5. The heat exchange device of claim 4, wherein: the medium injection port (4) is arranged at the highest point of the circulating pipeline.

6. The heat exchange device of claim 1, wherein: and a medium drain port (5) is arranged on the first pipeline (11) and/or the second pipeline (12) and/or the third pipeline (13) and/or the fourth pipeline (14), and the opening and the closing are controlled by a fourth valve (d).

7. The heat exchange device of claim 6, wherein: the medium liquid outlet (5) is arranged at the lowest point of the circulating pipeline.

8. The heat exchange device of claim 1, wherein: the two heat exchange coil pipes are formed by connecting two heat exchange pipes in parallel and spirally coiling.