CN218296840U

CN218296840U - Improved efficient heat exchanger of NMP recovery system

Info

Publication number: CN218296840U
Application number: CN202222731326.4U
Authority: CN
Inventors: 胡昆; 刘飞旋
Original assignee: Xiaoye Dongguan Machinery Technology Co ltd
Current assignee: Xiaoye Dongguan Machinery Technology Co ltd
Priority date: 2022-10-17
Filing date: 2022-10-17
Publication date: 2023-01-13
Anticipated expiration: 2032-10-17

Abstract

The utility model belongs to the technical field of the heat exchanger, especially, NMP recovery system's improvement efficient heat exchanger to the relatively poor problem of current cooling effect, the following scheme is proposed at present, and it includes the heat transfer case, the heat transfer chamber has been seted up on the heat transfer case, and the fixed intercommunication in one side of heat transfer case has the intake pipe, and the fixed intercommunication in opposite side of heat transfer case has the outlet duct, and the heat transfer chamber is all run through to the one end of intake pipe and outlet duct, be equipped with the cooling tube in the heat transfer case, the fixed intercommunication in top inner wall in heat transfer chamber has the connecting pipe, and the top fixed mounting of heat transfer case has two risers, and one side fixed mounting of two risers has same box, and the bottom fixed mounting of box has the pump body, and the water inlet and the fixed intercommunication of box of the pump body have an interface of three-way pipe, the utility model discloses have dual cooling effect, it is more high-efficient to cool off.

Description

Improved efficient heat exchanger of NMP recovery system

Technical Field

The utility model relates to a heat exchanger technical field especially relates to a NMP recovery system's improvement efficient heat exchanger.

Background

The heat exchanger is a device for transferring part of heat of hot fluid to cold fluid, and is also called a heat exchanger. The heat exchanger plays an important role in chemical industry, petroleum industry, power industry, food industry and other industrial production, and the heat exchanger is used in an NMP recovery system, and the heat exchanger is searched and disclosed in the following publication number: CN 215996142U's patent document discloses a waste gas treatment system for NMP retrieves, including the coating machine oven, the heat recovery device, the VOC runner, first heat exchanger, the second heat exchanger, save jar and filter, the heat source export of second heat exchanger and third heat exchanger cold source entry linkage, the cold source exit linkage of third heat exchanger has circulating fan, circulating fan's output and the treatment zone of VOC runner are connected, circulating fan's output is connected to the cold source entry of heat recovery device, the cold source entry of first heat exchanger, the cold source export is connected with cooling water inlet tube and cooling water exit tube respectively, the cold source entry of second heat exchanger, the cold source export is connected with refrigerated water inlet tube and refrigerated water exit tube respectively, the heat source entry of third heat exchanger, the heat source export all is connected to the cooling water exit tube. On the basis of the existing system, a third heat exchanger is added for temperature return heating, so that condensation generated in pipelines and fans due to low air flow temperature is avoided, and the removal efficiency of the VOC rotating wheel on the NMP is improved.

The patent document cools the high-temperature waste gas containing the NMP through the first heat exchanger and the second heat exchanger, but the cooling effect is poor, so we propose an improved and efficient heat exchanger of an NMP recovery system to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that the cooling effect is relatively poor, and the improvement efficient heat exchanger of a NMP recovery system who provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an NMP recovery system's improvement efficient heat exchanger, includes the heat transfer case, the heat transfer chamber has been seted up on the heat transfer case, and the fixed intercommunication in one side of heat transfer case has the intake pipe, and the fixed intercommunication in opposite side of heat transfer case has the outlet duct, and the heat transfer chamber is all run through to the one end of intake pipe and outlet duct, be equipped with the cooling tube in the heat transfer case, and the fixed intercommunication in top inner wall of heat transfer chamber has the connecting pipe, and the top fixed mounting of heat transfer case has two risers, and one side fixed mounting of two risers has same box, and the bottom fixed mounting of box has the pump body, and the water inlet and the fixed intercommunication of box of the pump body have a interface of three-way pipe, and two other interfaces of three-way pipe respectively with the fixed intercommunication in one side of cooling tube and connecting pipe, the other end of cooling tube and the fixed intercommunication in one side of box, the fixed intercommunication in bottom inner wall in heat transfer chamber and the top of box has same liquid return pipe, and the bottom fixed mounting of box has the refrigeration piece.

Preferably, a plurality of spoilers are fixedly mounted on the inner walls of the top and the bottom of the heat exchange box.

Preferably, a plurality of supporting legs are fixedly mounted at the bottom of the heat exchange box.

Preferably, two vertical holes are formed in the top of the heat exchange box and communicated with the heat exchange cavity, and the outer side of the cooling pipe is fixedly connected with the inner walls of the two vertical holes.

Preferably, the top of the box body is provided with a liquid filling port, and the liquid filling port is provided with a sealing plug.

Compared with the prior art, the utility model has the advantages of:

according to the scheme, the cooling liquid in the box body is cooled through the refrigerating fins, the cooling liquid is extracted through the pump body, the cooling liquid enters from one end of the connecting pipe and one end of the cooling pipe respectively through the shunting of the three-way pipe, the cooling liquid in the cooling pipe flows back into the box body through the other end of the cooling pipe, the cooling liquid in the connecting pipe enters the cooling cavity and flows back into the box body from the liquid return pipe to form circulation, high-temperature waste gas containing NMP enters the heat exchange box from the air inlet pipe, the gas flows through the gas flowing channel, so that the gas exchanges heat with the cooling liquid in the cooling pipe to cool the gas, meanwhile, the cooling liquid in the heat exchange cavity cools the heat exchange box, and the cooling effect on the gas is further improved;

the utility model discloses have dual cooling effect, the cooling is more high-efficient.

Drawings

Fig. 1 is a schematic structural diagram of an improved efficient heat exchanger of an NMP recovery system according to the present invention;

fig. 2 is an enlarged schematic structural diagram of a portion a in fig. 1 of an improved efficient heat exchanger of an NMP recovery system according to the present invention;

fig. 3 is the utility model provides a NMP recovery system's improvement efficient heat exchanger's heat transfer case, outlet duct and liquid return pipe look sideways at the schematic structure.

In the figure: 1. a heat exchange box; 2. an air inlet pipe; 3. an air outlet pipe; 4. a heat exchange cavity; 5. a spoiler; 6. a cooling tube; 7. a vertical plate; 8. a box body; 9. a liquid return pipe; 10. a pump body; 11. a three-way pipe; 12. a connecting pipe; 13. a refrigeration plate; 14. a fan; 15. support the feet.

Detailed Description

The technical solutions in the present embodiment will be clearly and completely described below with reference to the drawings in the present embodiment, and it is obvious that the described embodiments are only a part of the embodiments, and not all of the embodiments.

Example one

Referring to fig. 1-3, an improved efficient heat exchanger of an NMP recovery system comprises a heat exchange box 1, a heat exchange cavity 4 is formed in the heat exchange box 1, an air inlet pipe 2 is fixedly communicated with one side of the heat exchange box 1, an air outlet pipe 3 is fixedly communicated with the other side of the heat exchange box 1, one ends of the air inlet pipe 2 and the air outlet pipe 3 all penetrate through the heat exchange cavity 4, a cooling pipe 6 is arranged in the heat exchange box 1, a connecting pipe 12 is fixedly communicated with the inner wall of the top of the heat exchange cavity 4, two vertical plates 7 are fixedly mounted at the top of the heat exchange box 1, one side of each vertical plate 7 is fixedly mounted with a same box body 8, a pump body 10 is fixedly mounted at the bottom of the box body 8, a water inlet of the pump body 10 is fixedly communicated with the box body 8, a water outlet of the pump body 10 is fixedly communicated with a connector of a three-way pipe 11, the other two connectors of the three-way pipe 11 are respectively fixedly communicated with one ends of the cooling pipe 6 and the connecting pipe 12, the other end of the cooling pipe 6 is fixedly communicated with one side of the box body 8, a same liquid return pipe 9 is fixedly communicated with the inner wall of the bottom of the heat exchange cavity 4 and fixedly communicated with the top of the box body 8, and a refrigerating sheet 13 is fixedly mounted at the bottom of the box body 8.

In this embodiment, a plurality of spoilers 5 are fixedly mounted on the top inner wall and the bottom inner wall of the heat exchange box 1.

In this embodiment, a plurality of supporting legs 15 are fixedly installed at the bottom of the heat exchange box 1.

In this embodiment, two vertical holes are formed in the top of the heat exchange box 1, the two vertical holes are communicated with the heat exchange cavity 4, and the outer side of the cooling pipe 6 is fixedly connected with the inner walls of the two vertical holes.

In this embodiment, the top of box 8 is equipped with the filling opening, is equipped with the sealing plug on the filling opening.

In this embodiment, in use, as shown in fig. 1, the inner space of the heat exchange box 1 is partitioned by the flow blocking plates 5 to form a gas flow passage, a large part of the cooling tube 6 is located in the gas flow passage, the cooling liquid in the box body 8 is cooled by the refrigerating fins 13, the cooling liquid is extracted by the pump body 10, the cooling liquid flows through the three-way tube 11 and enters from one end of the connecting tube 11 and one end of the cooling tube 6, the cooling liquid in the cooling tube 6 flows back into the box body 8 through the other end of the cooling tube 6, the cooling liquid in the connecting tube 11 enters the cooling cavity 4 and flows back into the box body 8 through the liquid return tube 9 to form a circulation, high-temperature waste gas containing NMP enters the heat exchange box 1 from the gas inlet tube 2, the gas flows through the gas flow passage, so that the gas exchanges heat with the cooling liquid in the cooling tube 6 to cool the gas, and the cooling liquid in the heat exchange cavity 4 cools the heat exchange box 1, thereby further improving the cooling effect on the gas.

Example two

The difference from the first embodiment is that: a fan 14 is fixedly arranged at the bottom of the box body 8, and the fan 14 blows away heat generated by the refrigerating sheet 13 during operation;

the rest is the same as the first embodiment.

The above descriptions are only preferred embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present invention, and the technical solutions and the utility model concepts of the present invention are equivalent to, replaced or changed.

Claims

1. An improved high-efficiency heat exchanger of an NMP recovery system comprises a heat exchange box (1), it is characterized in that a heat exchange cavity (4) is arranged on the heat exchange box (1), one side of the heat exchange box (1) is fixedly communicated with an air inlet pipe (2), the other side of the heat exchange box (1) is fixedly communicated with an air outlet pipe (3), one end of the air inlet pipe (2) and one end of the air outlet pipe (3) both penetrate through the heat exchange cavity (4), a cooling pipe (6) is arranged in the heat exchange box (1), the inner wall of the top of the heat exchange cavity (4) is fixedly communicated with a connecting pipe (12), the top of the heat exchange box (1) is fixedly provided with two vertical plates (7), one side of the two vertical plates (7) is fixedly provided with the same box body (8), the bottom of the box body (8) is fixedly provided with a pump body (10), the water inlet of the pump body (10) is fixedly communicated with the box body (8), the water outlet of the pump body (10) is fixedly communicated with a connector of a three-way pipe (11), the other two connectors of the three-way pipe (11) are respectively fixedly communicated with one ends of the cooling pipe (6) and the connecting pipe (12), the other end of the cooling pipe (6) is fixedly communicated with one side of the box body (8), the bottom inner wall of heat exchange chamber (4) and the fixed intercommunication in top of box (8) have same liquid return pipe (9), and the bottom fixed mounting of box (8) has refrigeration piece (13).

2. The improved and efficient heat exchanger of NMP recovery system as recited in claim 1, wherein said heat exchange box (1) has a plurality of baffles (5) fixed on the top and bottom inner walls.

3. The improved high-efficiency heat exchanger of the NMP recovery system according to claim 2, wherein the bottom of the heat exchange box (1) is fixedly provided with a plurality of supporting legs (15).

4. The improved efficient heat exchanger of the NMP recovery system according to claim 3, wherein the top of the heat exchange box (1) is provided with two vertical holes, the two vertical holes are communicated with the heat exchange cavity (4), and the outer side of the cooling pipe (6) is fixedly connected with the inner walls of the two vertical holes.

5. The improved efficient heat exchanger of the NMP recovery system according to claim 4, wherein the top of the box body (8) is provided with a filling opening, and the filling opening is provided with a sealing plug.