CN216482416U

CN216482416U - Formaldehyde production heat transfer device

Info

Publication number: CN216482416U
Application number: CN202123054850.4U
Authority: CN
Inventors: 梁军; 覃宗武; 范应武
Original assignee: Guigang Xunfa Chemical Co ltd
Current assignee: Guigang Xunfa Chemical Co ltd
Priority date: 2021-12-07
Filing date: 2021-12-07
Publication date: 2022-05-10
Anticipated expiration: 2031-12-07

Abstract

The utility model discloses a formaldehyde production heat transfer device relates to formaldehyde production field, including the heat transfer case, the bottom fixedly connected with flue gas on heat transfer case right side advances the pipe, the top that the pipe was advanced to the flue gas is provided with the intake pipe, the inner chamber fixedly connected with mount of heat transfer case, the inside fixedly connected with heat exchange tube of mount, the left top fixedly connected with flue gas exit tube of heat transfer case, the bottom of heat exchange tube is provided with the collection liquid case. A formaldehyde production heat transfer device, advance the pipe through the flue gas that sets up and use with the cooperation of filter, fixed block, can realize filtering the flue gas that enters into heat transfer incasement portion, prevent to pollute heat transfer incasement portion structure, avoid long-time use to take place the phenomenon that heat transfer case blockked up, use with the cooperation of drain pipe through the collection liquid case that sets up, can realize collecting because of the water droplet that the cold and hot difference in temperature produced the heat transfer pipe surface, prevent to cause the phenomenon of the inside ponding of heat transfer case.

Description

Formaldehyde production heat transfer device

Technical Field

The utility model relates to a formaldehyde production field, in particular to formaldehyde production heat transfer device.

Background

In the process of producing formaldehyde in a chemical plant, methanol, water vapor and air are conveyed into an evaporator in the first step, the temperature in winter in the northeast is low, and if cold air is directly conveyed into the evaporator for evaporation, the evaporation effect is influenced, and the evaporation efficiency is reduced.

In patent publication No. CN202022752033.5, a formaldehyde production heat exchange device is proposed, the device comprises a heat exchange box, a U-shaped preheating pipe, a chimney, a smoke induced draft fan and an air induced draft fan, wherein the heat exchange box comprises a heat exchange box body, a heat insulation box body, a U-shaped convoluted smoke channel and a U-shaped convoluted air channel, the heat exchange device is suitable for the production of formaldehyde in winter, a smoke inlet pipe of the U-shaped convoluted smoke channel is communicated with smoke exhaust pipes of boilers such as a tail gas boiler and a waste gas boiler, an air outlet of the air induced draft fan is communicated with an air inlet of an evaporator, under the action of an air draught fan, cold air enters the U-shaped convoluted flue gas channel from the U-shaped preheating pipe to exchange heat with flue gas, the U-shaped preheating pipe is positioned in the chimney and is primarily preheated by waste heat in the chimney, under the action of a smoke induced draft fan, smoke enters a U-shaped convoluted air channel to exchange heat with cold air, but the following two problems exist in the patent:

1. the device can't filter the flue gas of entering heat transfer incasement portion, not only pollutes heat transfer incasement structure easily, uses for a long time and still takes place the phenomenon that heat transfer case blockked up easily.

2. The device can't collect the water droplet that the heat transfer pipe surface produced because of the cold and hot difference in temperature, causes the phenomenon of heat transfer incasement portion ponding easily.

Aiming at the problems, a formaldehyde production heat exchange device needs to be designed, so that the problems are overcome.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a formaldehyde production heat transfer device can effectively solve the problem in the background art.

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

a heat exchange device for formaldehyde production comprises a heat exchange box, wherein a flue gas inlet pipe is fixedly connected to the bottom of the right side of the heat exchange box, an air inlet pipe is arranged at the top of the flue gas inlet pipe, a fixing frame is fixedly connected to the inner cavity of the heat exchange box, a heat exchange pipe is fixedly connected to the inside of the fixing frame, a flue gas outlet pipe is fixedly connected to the top of the left side of the heat exchange box, a liquid collecting box is arranged at the bottom of the heat exchange pipe, a liquid outlet pipe is fixedly connected to one side of the liquid collecting box, an air outlet pipe is arranged at the bottom of the flue gas outlet pipe, a fixing base is arranged at the bottom of the flue gas inlet pipe, a filter plate is arranged inside the flue gas inlet pipe, fixed blocks are symmetrically and fixedly connected to the left side and the right side of the top of the filter plate, inserting grooves are symmetrically formed in one side of the two fixed blocks, inserting rods are symmetrically arranged inside the two inserting grooves, and moving plates are symmetrically and fixedly connected to one side of the two inserting rods opposite to each other side, two the first swash plate of the symmetrical fixedly connected with in one side of the back of the body of movable plate, two the relative one side symmetry fixedly connected with compression spring of movable plate, two the back of the body one side symmetry fixedly connected with stopper, two of peg graft pole bottom the bottom symmetry of stopper is provided with the spacing groove, two the top symmetry of first swash plate is provided with presses the depression bar, two the bottom symmetry fixedly connected with second swash plate according to the depression bar, unable adjustment base's top fixedly connected with screw thread seat.

Preferably, the left side of the air inlet pipe penetrates through the top on the right side of the heat exchange box and extends to the inner cavity of the heat exchange box, the left side of the air inlet pipe is fixedly connected to the right side of the heat exchange pipe, and the bottom of the liquid collecting box is fixedly connected to the bottom of the inner cavity of the heat exchange box.

Preferably, one side of the liquid outlet pipe penetrates through one side of the inner cavity of the heat exchange box and extends to one side of the heat exchange box, the right side of the air outlet pipe penetrates through the bottom of the left side of the heat exchange box and extends to the inner cavity of the heat exchange box, and the right side of the air outlet pipe is fixedly connected to the left side of the heat exchange pipe.

Preferably, the surface of the filter plate is slidably connected to the inside of the flue gas inlet pipe, the surface of the insertion rod is slidably connected to the inside of the insertion groove, and two opposite sides of the compression springs are fixedly connected to the left side and the right side of the wall body of the flue gas inlet pipe.

Preferably, the surface sliding connection of two stopper is in the inner wall of two spacing grooves, two the left and right sides at the flue gas advances tub wall body is seted up to the spacing groove.

Preferably, the top of each of the two pressing rods penetrates through the left side and the right side of the inner wall of the flue gas inlet pipe and extends to the left side and the right side of the surface of the flue gas inlet pipe, the surface of the second inclined plate is connected to the surface of the first inclined plate in a sliding mode, and the thread seat is connected to the bottom of the flue gas inlet pipe in a threaded mode.

Advantageous effects

Compared with the prior art, the utility model provides a formaldehyde production heat transfer device possesses following beneficial effect:

1. this formaldehyde production heat transfer device advances the pipe through the flue gas that sets up and uses with the cooperation of filter, fixed block, can realize filtering the flue gas that enters into heat transfer incasement portion, prevents to pollute heat transfer incasement portion structure, avoids long-time the phenomenon that takes place heat transfer case and block up.

2. This formaldehyde production heat transfer device uses through the cooperation of the liquid collecting tank that sets up and drain pipe, can realize collecting the heat transfer pipe surface because of the water droplet that the cold and hot difference in temperature produced, prevents to cause the phenomenon of the inside ponding of heat transfer incasement.

Drawings

Fig. 1 is a cross-sectional view of the present invention;

FIG. 2 is a sectional view of the flue gas inlet pipe of the present invention;

FIG. 3 is an enlarged view of FIG. 2;

fig. 4 is a schematic structural view of the fixing base of the present invention.

In the figure: 1. a heat exchange box; 2. a flue gas inlet pipe; 3. an air inlet pipe; 4. a fixed mount; 5. a heat exchange pipe; 6. a flue gas outlet pipe; 7. a liquid collection tank; 8. a liquid outlet pipe; 9. an air outlet pipe; 10. a fixed base; 11. a filter plate; 12. a fixed block; 13. inserting grooves; 14. a plug rod; 15. moving the plate; 16. a first sloping plate; 17. a compression spring; 18. a limiting block; 19. a limiting groove; 20. a pressing lever; 21. a second swash plate; 22. a threaded seat.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in figures 1-4, a heat exchange device for formaldehyde production comprises a heat exchange box 1, a flue gas inlet pipe 2 is fixedly connected to the bottom of the right side of the heat exchange box 1, an air inlet pipe 3 is arranged at the top of the flue gas inlet pipe 2, a fixing frame 4 is fixedly connected to the inner cavity of the heat exchange box 1, a heat exchange pipe 5 is fixedly connected to the inside of the fixing frame 4, a flue gas outlet pipe 6 is fixedly connected to the top of the left side of the heat exchange box 1, a liquid collecting box 7 is arranged at the bottom of the heat exchange pipe 5, the left side of the air inlet pipe 3 penetrates through the top of the right side of the heat exchange box 1 and extends to the inner cavity of the heat exchange box 1, the left side of the air inlet pipe 3 is fixedly connected to the right side of the heat exchange pipe 5, the bottom of the liquid collecting box 7 is fixedly connected to the bottom of the inner cavity of the heat exchange box 1, a liquid outlet pipe 8 is fixedly connected to one side of the liquid collecting box 7, and the liquid outlet pipe 8 are matched for use, so that water drops generated by cold-heat temperature difference on the surface of the heat exchange pipe 5 can be collected, prevent to cause the phenomenon of heat transfer case 1 inside ponding, the bottom of flue gas exit tube 6 is provided with outlet duct 9, one side of drain pipe 8 runs through one side of heat transfer case 1 inner chamber and extends to one side of heat transfer case 1, the right side of outlet duct 9 runs through the left bottom of heat transfer case 1 and extends to the inner chamber of heat transfer case 1, the right side of outlet duct 9 is fixedly connected in the left side of heat exchange tube 5, the bottom of flue gas inlet tube 2 is provided with unable adjustment base 10, the inside of flue gas inlet tube 2 is provided with filter plate 11, the left and right sides symmetry fixedly connected with fixed block 12 at the top of filter plate 11, through the cooperation use of flue gas inlet tube 2 and filter plate 11, fixed block 12, can realize filtering the flue gas that enters the inside of heat transfer case 1, prevent to pollute heat transfer case 1 internal structure, avoid long-time use the phenomenon that heat transfer case 1 blockked up, inserting groove 13 has symmetrically been seted up to the relative one side of two fixed blocks 12, the two insertion grooves 13 are symmetrically provided with insertion rods 14, the opposite sides of the two insertion rods 14 are symmetrically and fixedly connected with moving plates 15, the opposite sides of the two moving plates 15 are symmetrically and fixedly connected with first inclined plates 16, the opposite sides of the two moving plates 15 are symmetrically and fixedly connected with compression springs 17, the surface of the filter plate 11 is slidably connected with the inside of the flue gas inlet pipe 2, the surface of the insertion rod 14 is slidably connected with the inside of the insertion groove 13, the opposite sides of the two compression springs 17 are fixedly connected with the left side and the right side of the wall body of the flue gas inlet pipe 2, the opposite sides of the bottoms of the two insertion rods 14 are symmetrically and fixedly connected with limit blocks 18, the bottoms of the two limit blocks 18 are symmetrically provided with limit grooves 19, the surfaces of the two limit blocks 18 are slidably connected with the inner walls of the two limit grooves 19, the two limit grooves 19 are arranged on the left side and the right side of the wall body of the flue gas inlet pipe 2, and the tops of the two first inclined plates 16 are symmetrically provided with pressing rods 20, the bottom symmetry fixedly connected with second swash plate 21 of two pressure bars 20, unable adjustment base 10's top fixedly connected with screw thread seat 22, the top of two pressure bars 20 runs through the flue gas and advances the left and right sides of 2 inner walls of pipe and extend to the flue gas and advance the left and right sides on pipe 2 surface, the surperficial sliding connection of second swash plate 21 is in the surface of first swash plate 16, the threaded connection of screw thread seat 22 is in the bottom that the pipe 2 was advanced to the flue gas.

The first embodiment is as follows: through the cooperation of inserting groove 13 with inserted bar 14, stopper 18, spacing groove 19, can realize being convenient for change and wash filter 11 to guarantee filter 11's filter effect, and spacing to the removal of inserted bar 14, thereby guarantee going on smoothly of filter 11 change.

The second embodiment is as follows: through the cooperation of the movable plate 15, the compression spring 17 of the first inclined plate 16, the pressing rod 20 and the second inclined plate 21, the filter plate 11 can be conveniently mounted and dismounted, the filter plate 11 can be automatically fixed, the use is convenient, and the efficiency of replacing the filter plate 11 is improved.

It should be noted that, the utility model relates to a formaldehyde production heat exchange device, when in use, the screw thread seat 22 is driven to be separated from the bottom of the flue gas inlet pipe 2 by rotating the fixed base 10, the pressing rod 20 is pressed to drive the second inclined plate 21 to downwards extrude the first inclined plate 16, the movable plate 15 is driven by the first inclined plate 16 to extrude the compression spring 17 to drive the insertion rod 14 to move, the movement of the insertion rod 14 can be limited by the cooperation of the limiting block 18 and the limiting groove 19, thereby ensuring the smooth replacement of the filter plate 11, being convenient for replacing and cleaning the filter plate 11, thereby ensuring the filtering effect of the filter plate 11, the filter plate 11 is inserted into the flue gas inlet pipe 2, the pressing rod 20 is loosened, the insertion rod 14 is reset by the elasticity of the compression spring 17, thereby being convenient for installing and disassembling the filter plate 11, the filter plate 11 can be fixed by oneself, facilitate the use, improve the efficiency of changing filter 11, at the in-process of heat transfer, use through the cooperation of collection liquid box 7 with drain pipe 8, can realize collecting 5 surfaces of heat transfer pipe because of the water droplet that the cold and hot difference in temperature produced, prevent to cause the phenomenon of 1 inside ponding of heat transfer box, the practicality is stronger.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a formaldehyde production heat transfer device, includes heat transfer case (1), its characterized in that: the flue gas inlet pipe (2) is fixedly connected with the bottom on the right side of the heat exchange box (1), an air inlet pipe (3) is arranged at the top of the flue gas inlet pipe (2), a fixing frame (4) is fixedly connected with an inner cavity of the heat exchange box (1), a heat exchange pipe (5) is fixedly connected with the inner part of the fixing frame (4), a flue gas outlet pipe (6) is fixedly connected with the left top of the heat exchange box (1), a liquid collecting box (7) is arranged at the bottom of the heat exchange pipe (5), a liquid outlet pipe (8) is fixedly connected with one side of the liquid collecting box (7), an air outlet pipe (9) is arranged at the bottom of the flue gas outlet pipe (6), a fixing base (10) is arranged at the bottom of the flue gas inlet pipe (2), a filter plate (11) is arranged inside the flue gas inlet pipe (2), and fixing blocks (12) are symmetrically and fixedly connected with the left side and the right side of the top of the filter plate (11), inserting grooves (13) are symmetrically formed in opposite sides of the two fixing blocks (12), inserting rods (14) are symmetrically arranged in the two inserting grooves (13), moving plates (15) are symmetrically and fixedly connected to opposite sides of the two inserting rods (14), first inclined plates (16) are symmetrically and fixedly connected to opposite sides of the two moving plates (15), compression springs (17) are symmetrically and fixedly connected to opposite sides of the two moving plates (15), limiting blocks (18) are symmetrically and fixedly connected to opposite sides of the bottoms of the two inserting rods (14), limiting grooves (19) are symmetrically formed in the bottoms of the two limiting blocks (18), pressing rods (20) are symmetrically arranged on the tops of the two first inclined plates (16), and second inclined plates (21) are symmetrically and fixedly connected to the bottoms of the two pressing rods (20), the top of the fixed base (10) is fixedly connected with a threaded seat (22).

2. The formaldehyde production heat exchange device of claim 1, wherein: the left side of intake pipe (3) runs through the inner chamber that the top on heat transfer case (1) right side extended to heat transfer case (1), the left side fixed connection of intake pipe (3) is in the right side of heat exchange tube (5), the bottom fixed connection of collection liquid case (7) is in the bottom of heat transfer case (1) inner chamber.

3. The formaldehyde production heat exchange device of claim 1, wherein: one side of drain pipe (8) runs through one side that heat transfer case (1) inner chamber and extends to one side of heat transfer case (1), the right side of outlet duct (9) runs through the inner chamber that the left bottom of heat transfer case (1) extended to heat transfer case (1), the right side fixed connection of outlet duct (9) is in the left side of heat exchange tube (5).

4. The formaldehyde production heat exchange device of claim 1, wherein: the inside of advancing pipe (2) in the flue gas of surperficial sliding connection of filter (11), the inside of the surperficial sliding connection in inserting groove (13) of grafting pole (14), two the left and right sides of pipe (2) wall body is advanced in the flue gas to one side fixed connection relative of compression spring (17).

5. The formaldehyde production heat exchange device of claim 1, wherein: two the surperficial sliding connection in the inner wall of two spacing grooves (19) of stopper (18), two spacing groove (19) are seted up and are advanced the left and right sides of pipe (2) wall body at the flue gas.

6. The formaldehyde production heat exchange device of claim 1, wherein: the top of the two pressing rods (20) penetrates through the left side and the right side of the inner wall of the smoke inlet pipe (2) and extends to the left side and the right side of the surface of the smoke inlet pipe (2), the surface of the second inclined plate (21) is connected to the surface of the first inclined plate (16) in a sliding mode, and the thread of the thread seat (22) is connected to the bottom of the smoke inlet pipe (2).