CN218973299U

CN218973299U - Heat exchange device of formaldehyde production line

Info

Publication number: CN218973299U
Application number: CN202223320646.7U
Authority: CN
Inventors: 尤强; 李飞虎; 周聪
Original assignee: Huaqiang Chemical Group Co Ltd
Current assignee: Huaqiang Chemical Group Co Ltd
Priority date: 2022-12-05
Filing date: 2022-12-05
Publication date: 2023-05-05
Anticipated expiration: 2032-12-05

Abstract

The utility model relates to a formaldehyde production line heat exchange device, which comprises a support frame, a desalting water tank, a heat exchange structure and an insulation tank, wherein the heat exchange structure comprises a plurality of heat exchange pipes which are arranged on the surface of the heat exchange tank at equal intervals along the horizontal direction, connecting pipes are arranged in the centers of the top and the bottom of the heat exchange pipes, the heat exchange structure also comprises two main pipelines, the connecting pipes at the top of the heat exchange pipes and the connecting pipes at the bottom of the heat exchange pipes are respectively communicated with the two main pipelines, a cold desalted water inlet pipe is arranged in the middle of the main pipeline close to the top of the heat exchange pipes, the cold desalted water inlet pipe is communicated with the bottom of the desalting water tank, a hot desalted water outlet pipe is arranged in the middle of the main pipeline close to the bottom of the heat exchange pipes, and the hot desalted water outlet pipe is communicated with the top of the insulation tank; the utility model enables cold desalination water in the desalination water tank to enter each heat exchange tube, so that the cold desalination water can sufficiently and uniformly flow through the surfaces of the heat exchange tanks.

Description

Heat exchange device of formaldehyde production line

Technical Field

The utility model relates to the technical field of formaldehyde production, in particular to a formaldehyde production line heat exchange device.

Background

In the existing formaldehyde production technology, formaldehyde output from an oxidizer is conveyed into a heat exchange box to exchange heat through cold desalted water, and after the formaldehyde is subjected to heat exchange treatment for a period of time, the formaldehyde enters a formaldehyde finished product absorption tower to be subjected to subsequent treatment, then enters an evaporation cold and is input into a formaldehyde tank to be stored.

In the heat exchange process, the cold desalted water flows on the outer wall of the heat exchange box, and the cold desalted water has short stay time on the outer wall of the heat exchange box and poor heat absorption effect, so that the cold desalted water flows away without being heated, the heat energy is wasted, the heat exchange efficiency is low, and the consumed time is long.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a formaldehyde production line heat exchange device which is used for solving the problems proposed by the background technology.

The utility model discloses a formaldehyde production line heat exchange device which comprises a support frame, a desalting water tank, a heat exchange structure and an insulation tank, wherein the desalting water tank is arranged at the top of the support frame, a water inlet pipe is arranged at one side of the desalting water tank, the heat exchange tank is arranged at the middle part of the support frame, the insulation tank is arranged below the heat exchange tank, the heat exchange structure comprises a plurality of heat exchange pipes which are equidistantly arranged on the surface of the heat exchange tank along the horizontal direction, connecting pipes are arranged at the centers of the top and the bottom of the heat exchange pipes, the heat exchange structure further comprises two main pipelines, the connecting pipes at the top of the heat exchange pipes and the connecting pipes at the bottom of the heat exchange pipes are respectively communicated with the two main pipelines, a cold desalting water inlet pipe is arranged at the middle part of the main pipeline close to the top of the heat exchange pipes, a hot desalting water outlet pipe is arranged at the middle part of the main pipeline close to the bottom of the heat exchange pipes, and the hot desalting water outlet pipe is communicated with the top of the insulation tank.

As a further improvement of the utility model, the positions of the main pipeline corresponding to the connecting pipes are provided with the shunt pipes, the bottoms of the shunt pipes are provided with the pipe joints, and the shunt pipes are inserted and arranged in the connecting pipes.

As a further improvement of the utility model, the top of the left side of the heat exchange box is provided with a formaldehyde ingress pipe, and the middle part of the formaldehyde ingress pipe is provided with a first electromagnetic valve.

As a further improvement of the utility model, the bottom of the right side of the heat exchange box is provided with a formaldehyde delivery pipe, and the middle part of the formaldehyde delivery pipe is provided with a second electromagnetic valve.

As a further improvement of the utility model, a third electromagnetic valve is arranged in the middle of the cold desalted water inlet pipe, and a fourth electromagnetic valve is arranged on the hot desalted water outlet pipe.

As a further improvement of the utility model, the center of the bottom of the heat insulation box is communicated with a drain pipe, and a fifth electromagnetic valve is arranged in the middle of the drain pipe.

As a further improvement of the utility model, connecting rods are arranged at the positions, close to the center, of the two sides of the inner wall of the support frame, connecting plates are arranged at the middle parts of the two sides of the heat exchange box, and the other ends of the connecting rods are fixedly connected with the connecting plates.

As a further improvement of the utility model, the side surface of the heat exchange tube is of a rectangular square frame structure, and the periphery of the inner wall of the heat exchange tube is attached to the periphery of the outer wall of the heat exchange box.

Compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, through the arrangement of the plurality of heat exchange pipes, the main pipeline, the shunt pipes and the pipe joints, cold desalination water in the desalination water tank can enter each heat exchange pipe, so that the cold desalination water can fully and uniformly flow through the surfaces of the heat exchange pipes, the heat exchange pipes can heat the desalted water in the heat exchange pipes, the purpose of heating the cold desalination water and cooling formaldehyde in the heat exchange boxes is realized, and through the arrangement of the fourth electromagnetic valve arranged on the hot desalination water delivery pipe and the heat preservation box, the cold desalination water in the heat exchange pipes is discharged into the heat preservation box after being fully heated, so that the hot desalination water can be stored into the heat preservation box for subsequent processing, the subsequent process of specially heating the desalted water is omitted, the utilization efficiency of heat energy is effectively improved, and the energy is saved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:

FIG. 1 is a schematic perspective view of a heat exchange box according to the present utility model;

FIG. 2 is a schematic diagram of a cross-sectional front view of a heat exchange box according to the present utility model;

FIG. 3 is an enlarged schematic view of the structure of FIG. 2A according to the present utility model;

FIG. 4 is a schematic view of the overall front cross-sectional structure of the present utility model;

fig. 5 is a schematic diagram of the overall front structure of the present utility model.

In the figure: 1. a support frame; 101. a connecting rod; 2. a desalting water tank; 201. a water inlet pipe; 3. a heat exchange box; 301. a formaldehyde inlet pipe; 302. a first electromagnetic valve; 303. a formaldehyde delivery tube; 304. a second electromagnetic valve; 305. a connecting plate; 4. a heat exchange tube; 401. a connecting pipe; 402. a main pipeline; 403. a shunt; 404. a pipe joint; 405. cold desalted water inlet pipe; 406. a third electromagnetic valve; 407. a hot desalted water delivery pipe; 408. a fourth electromagnetic valve; 5. an insulation box; 501. a drain pipe; 502. and a fifth electromagnetic valve.

Detailed Description

Various embodiments of the present utility model are disclosed in the following drawings, which are presented in sufficient detail to provide a thorough understanding of the present utility model. However, it should be understood that these physical details should not be used to limit the utility model. That is, in some embodiments of the present utility model, these physical details are not necessary. Moreover, for the sake of simplicity of illustration, some well-known and conventional structures and components are shown in the drawings in a simplified schematic manner.

Furthermore, the terms "horizontal," "vertical," "overhang," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present technology, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in the art will be understood in a specific manner by those of ordinary skill in the art.

In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

Referring to fig. 1-5, the formaldehyde production line heat exchange device of the utility model comprises a support frame 1, a desalination water tank 2, a heat exchange tank 3, a heat exchange structure and an insulation tank 5, wherein the desalination water tank 2 is arranged at the top of the support frame 1, one side of the desalination water tank 2 is provided with a water inlet pipe 201, the heat exchange tank 3 is arranged at the middle part of the support frame 1, the insulation tank 5 is arranged below the heat exchange tank 3, the heat exchange structure comprises a plurality of heat exchange pipes 4 which are equidistantly arranged on the surface of the heat exchange tank 3 along the horizontal direction, connecting pipes 401 are arranged at the centers of the top and the bottom of the heat exchange pipes 4, the heat exchange structure further comprises two main pipelines 402, the connecting pipes 401 at the top of the heat exchange pipes 4 and the connecting pipes 401 at the bottom of the heat exchange pipes are respectively communicated with two main pipelines 402, the middle part of the main pipeline 402 close to the top of the heat exchange pipes 4 is provided with a cold desalination water inlet pipe 405, the cold desalination water 405 is communicated with the bottom of the desalination water tank 2, the middle part of the main pipeline 402 close to the bottom of the heat exchange pipe 4 is provided with a hot desalination water outlet pipe 407, and the hot desalination water outlet 407 is communicated with the top of the insulation tank 5.

In this embodiment, in order to facilitate the butt joint between the main pipeline 402 and each connecting pipe 401, the positions of the main pipeline 402 corresponding to the connecting pipes 401 are all provided with the shunt pipes 403, the bottoms of the shunt pipes 403 are provided with the pipe joints 404, and the shunt pipes 403 are inserted and installed inside the connecting pipes 401.

When connecting the main pipe 402 and the connection pipe 401, a worker first inserts the shunt pipe 403 into the connection pipe 401, and then tightens the pipe joint 404 so that the pipe joint 404 is fixed to the connection pipe 401.

In this embodiment, a formaldehyde inlet pipe 301 is disposed at the top of the left side of the heat exchange box 3, a first electromagnetic valve 302 is mounted in the middle of the formaldehyde inlet pipe 301, a formaldehyde outlet pipe 303 is disposed at the bottom of the right side of the heat exchange box 3, and a second electromagnetic valve 304 is mounted in the middle of the formaldehyde outlet pipe 303.

Through the above technical scheme, a worker can send hot formaldehyde into the interior of the heat exchange box 3 through the formaldehyde inlet pipe 301, and can discharge the formaldehyde from the formaldehyde outlet pipe 303 after the formaldehyde in the interior of the formaldehyde heat exchange box 3 is cooled.

In this embodiment, a third solenoid valve 406 is installed in the middle of the cold desalted water introducing pipe 405, and a fourth solenoid valve 408 is installed on the hot desalted water introducing pipe 407.

When the third electromagnetic valve 406 is opened and the fourth electromagnetic valve 408 is closed, the cold desalted water in the desalted water tank 2 flows into each connecting pipe 401 through the main pipeline 402 and the shunt pipes 403, and fills the heat exchange pipe 4, and at this time, the cold desalted water contacts with the surface of the heat exchange tank 3, and absorbs the heat of formaldehyde for heating.

In some other embodiments, the side surface of the heat exchange tube 4 is in a rectangular square frame structure, and the periphery of the inner wall of the heat exchange tube 4 is attached to the periphery of the outer wall of the heat exchange box 3.

Through the technical scheme, the contact area between the cold desalted water in the heat exchange tube 4 and the heat exchange box 3 is increased to the greatest extent, so that the cold desalted water absorbs heat more rapidly.

After the heating to a sufficient temperature, the fourth solenoid valve 408 is opened, and the hot desalted water flows into the incubator 5 through the hot desalted water outlet pipe 407 for storage, so that the subsequent direct use is facilitated.

In this embodiment, a drain pipe 501 is connected to the center of the bottom of the incubator 5, and a fifth electromagnetic valve 502 is installed in the middle of the drain pipe 501.

Through the above technical scheme, when a worker needs to use the hot desalted water, the hot desalted water can be discharged from the drain pipe 501 by opening the fifth electromagnetic valve 502.

In this embodiment, connecting rods 101 are disposed on two sides of the inner wall of the support frame 1 and near the center, connecting plates 305 are disposed in the middle of two sides of the heat exchange box 3, and the other ends of the connecting rods 101 are fixedly connected with the connecting plates 305.

It should be noted that, the first electromagnetic valve 302, the second electromagnetic valve 304, the third electromagnetic valve 406, the fourth electromagnetic valve 408 and the fifth electromagnetic valve 502 are all electrically connected to the same controller, and the controller controls the opening and closing of each electromagnetic valve according to the technical means known to those skilled in the art, so the circuit connection relationship and the working principle thereof are not further described in the present specification, and those skilled in the art should know.

The foregoing description is only illustrative of the utility model and is not to be construed as limiting the utility model. Various modifications and variations of the present utility model will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, or the like, which is within the spirit and principle of the present utility model, should be included in the scope of the claims of the present utility model.

Claims

1. The utility model provides a line heat transfer device is produced to formaldehyde, includes support frame (1), desalted water case (2), heat transfer case (3), heat transfer structure and insulation can (5), its characterized in that: the desalinating water tank (2) is arranged at the top of the supporting frame (1), and a water inlet pipe (201) is arranged at one side of the desalinating water tank (2);

the heat exchange box (3) is arranged in the middle of the support frame (1);

the heat preservation box (5) is arranged below the heat exchange box (3);

the heat exchange structure comprises a plurality of heat exchange pipes (4) which are equidistantly arranged on the surface of the heat exchange box (3) along the horizontal direction, and connecting pipes (401) are arranged in the centers of the top and the bottom of the heat exchange pipes (4);

the heat exchange structure further comprises two main pipelines (402), and a connecting pipe (401) at the top of the heat exchange pipe (4) and a connecting pipe (401) at the bottom of the heat exchange pipe are respectively communicated with the two main pipelines (402);

a cold desalted water ingress pipe (405) is arranged in the middle of the main pipeline (402) close to the top of the heat exchange pipe (4), and the cold desalted water ingress pipe (405) is communicated with the bottom of the desalted water tank (2);

the middle part of the main pipeline (402) close to the bottom of the heat exchange tube (4) is provided with a hot desalted water delivery tube (407), and the hot desalted water delivery tube (407) is communicated with the top of the heat insulation box (5).

2. The formaldehyde production line heat exchange device of claim 1, wherein: the position of the main pipeline (402) corresponding to the connecting pipe (401) is provided with a shunt pipe (403), the bottom of the shunt pipe (403) is provided with a pipe joint (404), and the shunt pipe (403) is inserted and installed in the connecting pipe (401).

3. The formaldehyde production line heat exchange device of claim 1, wherein: the top of heat exchange box (3) left side is provided with formaldehyde ingress pipe (301), formaldehyde ingress pipe (301) mid-mounting has first solenoid valve (302).

4. The formaldehyde production line heat exchange device of claim 1, wherein: the bottom on the right side of the heat exchange box (3) is provided with a formaldehyde delivery pipe (303), and a second electromagnetic valve (304) is arranged in the middle of the formaldehyde delivery pipe (303).

5. The formaldehyde production line heat exchange device of claim 1, wherein: a third electromagnetic valve (406) is arranged in the middle of the cold desalted water inlet pipe (405), and a fourth electromagnetic valve (408) is arranged on the hot desalted water outlet pipe (407).

6. The formaldehyde production line heat exchange device of claim 1, wherein: the middle of the bottom of the heat preservation box (5) is communicated with a drain pipe (501), and a fifth electromagnetic valve (502) is installed in the middle of the drain pipe (501).

7. The formaldehyde production line heat exchange device of claim 1, wherein: connecting rods (101) are arranged at the two sides of the inner wall of the supporting frame (1) and close to the center, connecting plates (305) are arranged in the middle of the two sides of the heat exchange box (3), and the other ends of the connecting rods (101) are fixedly connected with the connecting plates (305).

8. The formaldehyde production line heat exchange device of claim 1, wherein: the side of the heat exchange tube (4) is of a rectangular square frame structure, and the periphery of the inner wall of the heat exchange tube (4) is attached to the periphery of the outer wall of the heat exchange box (3).