CN218011672U

CN218011672U - Formaldehyde production reaction waste heat recovery device

Info

Publication number: CN218011672U
Application number: CN202221678602.9U
Authority: CN
Inventors: 李彬; 李永辉
Original assignee: Ningxia Jinhai Xinning Chemical Co ltd
Current assignee: Ningxia Jinhai Xinning Chemical Co ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2022-12-13
Anticipated expiration: 2032-06-30

Abstract

The utility model discloses a formaldehyde production reaction waste heat recovery device relates to the formaldehyde production field, including reactor, over heater, evaporimeter, storage tank and header tank, be connected with the connecting pipe between header tank and the evaporimeter, be connected with the breather pipe between connecting pipe and the reactor, be connected with the rose box on the breather pipe, the inside of rose box is equipped with prevents stifled subassembly, prevents stifled subassembly including collection mouth, recess, round pin axle, screw rod and filter screen, and one side of screw rod is fixed with the commentaries on classics board. The utility model discloses a be provided with and prevent stifled subassembly, when needing to clear up filter screen surface adnexed impurity, user's accessible carousel rotates the screw rod, the screw rod can drive after rotating and change the board and rotate, change the board and can strike off the impurity on the filter screen when continuously rotating, make impurity drop to the intraoral portion that gathers materials, and then avoid causing the jam of filter screen, and need not frequently to dismantle the filter screen and also can clear up it, and then improved the cleaning efficiency to the filter screen, make follow-up filter screen can normally filter high temperature gas.

Description

Formaldehyde production reaction waste heat recovery device

Technical Field

The utility model relates to a formaldehyde production field specifically is a formaldehyde production reaction waste heat recovery device.

Background

At present, in the common formaldehyde production process flow in China, particularly when formaldehyde is generated by methanol oxidation, the formaldehyde synthesis reaction needs to be completed under a heating condition, after materials in a formaldehyde reactor completely react, the high-temperature products need to be cooled to the ambient temperature so as to be convenient for storing the formaldehyde, the products in the common formaldehyde reactor are usually gases with low pressure or normal pressure of about 250 ℃, the products need to be cooled to the ambient temperature so as to be convenient for storing the formaldehyde, a large amount of heat exists in the formaldehyde reactor, if the heat is directly discharged, waste is easy to cause, and therefore a waste heat recovery device needs to be used for recovering and reusing the heat, and waste of a large amount of heat is avoided.

Current formaldehyde production reaction waste heat recovery device, because contain impurity in the high temperature gas, and this part impurity can be filtered by the filter screen and flow back to inside the evaporimeter again, but its surface can be attached to more impurity after the filter screen filters for a long time, and impurity is difficult to in time clear up and falls, leads to leading to causing the filter screen to block up, and then influences its filtration efficiency and ventilation effect

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model aims at providing a formaldehyde production reaction waste heat recovery device to the solution is difficult to in time clear up the technical problem who falls the filter screen upper surface adnexed impurity.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a formaldehyde production reaction waste heat recovery device, includes reactor, over heater, evaporimeter, storage tank and header tank, be connected with the connecting pipe between header tank and the evaporimeter, be connected with the breather pipe between connecting pipe and the reactor, be connected with the rose box on the breather pipe, the inside of rose box is equipped with prevents stifled subassembly, prevent stifled subassembly including material collection mouth, recess, round pin axle, screw rod and filter screen, one side of screw rod is fixed with the commentaries on classics board, the inside of material collection mouth is provided with the shutoff and blocks up, sell the epaxial limiting plate that is equipped with.

Through adopting above-mentioned technical scheme, the screw rod can drive the commentaries on classics board after rotating and rotate, changes the board and then can clear up the adnexed impurity in filter screen surface after rotating.

Further, the bottom of limiting plate contacts with the shutoff stopper, the shutoff stopper with collect material mouth looks adaptation.

Through adopting above-mentioned technical scheme, the limiting plate can be spacing to the shutoff stopper, prevents that the shutoff stopper from falling out in the mouth of gathering materials at will, and then has improved the stability of shutoff stopper.

Furthermore, one side of the rotating plate is in contact with a filter screen, and the filter screen is semicircular.

Through adopting above-mentioned technical scheme, can strike off the impurity on the filter screen when changeing the board and continuously rotating for impurity drops to the inside of the mouth that gathers materials, and then avoids causing the jam of filter screen.

Furthermore, a spring is fixed inside the groove, and the bottom end of the spring is in contact with the plugging plug.

Through adopting above-mentioned technical scheme, it can extrude the spring after shutoff stopper shutoff collection mouth is inside for the spring is all impressed to the recess inside.

Furthermore, the mouth that gathers materials is the loudspeaker form, it is located one side below of filter screen to gather the material mouth.

Through adopting above-mentioned technical scheme, the impurity can be collected to the mouth that gathers materials to follow-up impurity can be discharged smoothly, and then has improved the cleaning efficiency to impurity.

Furthermore, a filter is arranged on the reactor, and an exhaust pipe is connected to the lower part of one side of the reactor.

Through adopting above-mentioned technical scheme, can filter methyl alcohol to improve the purity of methyl alcohol, and then be convenient for improve the reaction efficiency of methyl alcohol.

Furthermore, a material pumping pump is installed on one side of the evaporator, a material pumping pipe extending to the inside of the storage tank is connected to the feeding end of the material pumping pump, and a material conveying pipe extending to the inside of the evaporator is connected to the discharging end of the material pumping pump.

By adopting the technical scheme, the material pumping pump works to enable the material pumping pipe to pump the methanol in the storage tank, and the methanol enters the evaporator through the material conveying pipe.

To sum up, the utility model discloses mainly have following beneficial effect:

1. the utility model discloses a be provided with and prevent stifled subassembly, when needing to clear up filter screen surface adnexed impurity, user's accessible carousel rotates the screw rod, the screw rod can drive after rotating and change the board and rotate, it can strike off the impurity on the filter screen to change the board when continuously rotating, make impurity drop to the intraoral portion that gathers materials, and then avoid causing the jam of filter screen, and need not frequently to dismantle the filter screen and also can clear up it, and then improved the cleaning efficiency to the filter screen, make follow-up filter screen can normally filter high temperature gas, and when needing to clear up the intraoral impurity that gathers materials, the rotatable board that changes of user, make change the board no longer with the shutoff stopper contact, the spring resumes elasticity and then promotes the shutoff stopper and moves down this moment, make the shutoff block shift out in gathering materials, and impurity alright discharge through the mouth that gathers materials.

Drawings

Fig. 1 is a schematic view of the overall front structure of the present invention;

fig. 2 is an enlarged view of a portion a in fig. 1 according to the present invention;

fig. 3 is a schematic view of the three-dimensional local structure of the filtering box of the present invention.

In the figure: 1. a reactor; 2. a superheater; 3. an evaporator; 4. a storage tank; 5. a material pumping pump; 6. a material pumping pipe; 7. a delivery pipe; 8. an anti-blocking component; 801. a screw; 802. rotating the plate; 803. filtering with a screen; 804. a material collecting port; 805. blocking; 806. a spring; 807. a groove; 808. a pin shaft; 809. a limiting plate; 810. a turntable; 9. a filter box; 10. a water collection tank; 11. a connecting pipe; 12. a filter; 13. a breather tube.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

Next, an embodiment of the present invention will be described with reference to the overall structure thereof.

The utility model provides a formaldehyde production reaction waste heat recovery device, as shown in figure 1, figure 2 and figure 3, including reactor 1, over heater 2, evaporimeter 3, storage tank 4 and header tank 10, be connected with connecting pipe 11 between header tank 10 and the evaporimeter 3, be connected with breather pipe 13 between connecting pipe 11 and the reactor 1, be connected with rose box 9 on the breather pipe 13, the inside of rose box 9 is equipped with prevents stifled subassembly 8.

Specifically, the anti-blocking assembly 8 comprises a material collecting port 804, a groove 807, a pin shaft 808, a screw 801 and a filter screen 803, a rotating plate 802 is fixed on one side of the screw 801, the rotating plate 802 can be driven to rotate after the screw 801 rotates, impurities attached to the surface of the filter screen 803 can be cleaned away after the rotating plate 802 rotates, a rotating disc 810 is connected to one end of the screw 801, a rotating handle is arranged on the outer surface of the rotating disc 810, a sealing gasket is arranged between the rotating disc 810 and the filter box 9, the sealing performance of the filter box 9 is improved, meanwhile, a user can rotate the rotating disc 810 through the rotating handle, one side of the rotating plate 802 is in contact with the filter screen 803, the filter screen 803 is semicircular, a sealing plug 805 is arranged inside the material collecting port 804, a pull ring is fixed at the bottom of the sealing plug 805, and the user can pull the sealing plug 805 through the pull ring to enable the sealing plug 805 to be quickly moved out from the material collecting port 804, the pin shaft 808 is provided with a limiting plate 809, the bottom of the limiting plate 809 is in contact with the sealing plug 805, the limiting plate 809 can limit the sealing plug 805 to prevent the sealing plug 805 from falling out of the material collecting port 804 at will, a spring 806 is fixed inside the groove 807, the bottom end of the spring 806 is in contact with the sealing plug 805, one end of the screw 801 is connected with the filter box 9 through a bearing to facilitate rotation of the screw 801, the top end of the pin shaft 808 is connected with the bottom of the filter box 9 through a bearing to facilitate rotation of the pin shaft 808, the pin shaft 808 can drive the rotating plate 802 to rotate after rotating, the groove 807 and the material collecting port 804 are all arranged at the bottom of the filter box 9, the sealing plug 805 is matched with the material collecting port 804, the material collecting port 804 is horn-shaped, the material collecting port 804 is positioned below one side of the filter screen 803, and the material collecting port 804 can collect impurities so that subsequent impurities can be smoothly discharged.

Referring to fig. 1 and 3, be equipped with filter 12 on reactor 1, one side below of reactor 1 is connected with the blast pipe, can filter methyl alcohol, so that improve the purity of methyl alcohol, and then be convenient for improve the reaction efficiency of methyl alcohol, one side of reactor 1, on superheater 2 and one side of evaporimeter 3 all be equipped with the intake pipe, between filter 12 and superheater 2, all be connected with the pipe between superheater 2 and the evaporimeter 3, can carry methyl alcohol, suction pump 5 is installed to one side of evaporimeter 3, suction pump 5's feed end is connected with the drawing pipe 6 that extends to storage tank 4 inside, suction pump 5's discharge end is connected with the conveying pipeline 7 that extends to evaporimeter 3 inside, suction pump 5 work can make the drawing pipe 6 draw the inside methyl alcohol of storage tank 4, methyl alcohol then enters into to evaporimeter 3 inside through conveying pipeline 7.

The implementation principle of the embodiment is as follows: firstly, a user installs the device and switches on a power supply, then starts a material pumping pump 5, and can pump methanol in a storage tank 4 into an evaporator 3, the methanol enters a filter 12 through a heater 2 and then enters a reactor 1 for reaction, external steam enters the reactor 1 through an air inlet pipe, high-temperature gas in the reactor enters a vent pipe 13, a filter screen 803 can filter the high-temperature gas, the gas can enter a connecting pipe 11 after being filtered and then flows back to the evaporator 3 for recycling, so that waste heat recovery can be realized, and waste of heat can be avoided;

when the impurities attached to the surface of the filter screen 803 need to be cleaned, a user can rotate the screw rod 801 through the rotary disc 810, the screw rod 801 can drive the rotary plate 802 to rotate after rotating, the impurities on the filter screen 803 can be scraped off when the rotary plate 802 continuously rotates, so that the impurities fall into the material collecting port 804, the blockage of the filter screen 803 is avoided, and when the impurities in the material collecting port 804 need to be cleaned, the user can rotate the rotary plate 802, so that the rotary plate 802 does not contact with the blocking plug 805 any more, at the moment, the spring 806 recovers elasticity and then pushes the blocking plug 805 to move downwards, the blocking plug 805 is moved out of the material collecting port 804, and the impurities can be discharged through the material collecting port 804.

While embodiments of the invention have been illustrated and described, it is not intended to limit the invention to the exact construction and operation illustrated and described, and that various other features, structures, materials, or characteristics may be substituted for those illustrated and described without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a formaldehyde production reaction waste heat recovery device, includes reactor (1), over heater (2), evaporimeter (3), storage tank (4) and header tank (10), its characterized in that: be connected with connecting pipe (11) between header tank (10) and evaporimeter (3), be connected with breather pipe (13) between connecting pipe (11) and reactor (1), be connected with rose box (9) on breather pipe (13), the inside of rose box (9) is equipped with prevents stifled subassembly (8), prevent stifled subassembly (8) including collection mouth (804), recess (807), round pin axle (808), screw rod (801) and filter screen (803), one side of screw rod (801) is fixed with commentaries on classics board (802), the inside of collection mouth (804) is provided with seals up and blocks up (805), be equipped with limiting plate (809) on round pin axle (808).

2. The formaldehyde production reaction waste heat recovery device of claim 1, characterized in that: the bottom of the limiting plate (809) is in contact with a blocking plug (805), and the blocking plug (805) is matched with the material collecting port (804).

3. The formaldehyde production reaction waste heat recovery device of claim 1, characterized in that: one side of the rotating plate (802) is in contact with a filter screen (803), and the filter screen (803) is semicircular.

4. The formaldehyde production reaction waste heat recovery device of claim 1, characterized in that: a spring (806) is fixed inside the groove (807), and the bottom end of the spring (806) is in contact with the blocking plug (805).

5. The formaldehyde production reaction waste heat recovery device according to claim 1, characterized in that: the material collecting port (804) is horn-shaped, and the material collecting port (804) is positioned below one side of the filter screen (803).

6. The formaldehyde production reaction waste heat recovery device of claim 1, characterized in that: the reactor (1) is provided with a filter (12), and the lower part of one side of the reactor (1) is connected with an exhaust pipe.

7. The formaldehyde production reaction waste heat recovery device of claim 1, characterized in that: the material pumping device is characterized in that a material pumping pump (5) is installed on one side of the evaporator (3), a material pumping pipe (6) extending to the inside of the storage tank (4) is connected to the feeding end of the material pumping pump (5), and a material conveying pipe (7) extending to the inside of the evaporator (3) is connected to the discharging end of the material pumping pump (5).