CN211706436U

CN211706436U - Desorption reheating device

Info

Publication number: CN211706436U
Application number: CN201921977710.4U
Authority: CN
Inventors: 王顺宝; 徐顺秒; 刘进
Original assignee: Hangzhou Haizhou Environmental Equipment Co ltd
Current assignee: Hangzhou Haizhou Environmental Equipment Co ltd
Priority date: 2019-11-15
Filing date: 2019-11-15
Publication date: 2020-10-20
Anticipated expiration: 2029-11-15

Abstract

The utility model relates to the field of waste gas purification equipment, in particular to a desorption reheating device, which comprises a waste gas desorption box, an electric heating pipe and a plate heat exchanger, wherein both ends of the bottom of the waste gas desorption box are fixedly provided with supporting legs, the waste gas desorption box is internally provided with a heating cavity and a heat exchange cavity in sequence from top to bottom, an interlayer is arranged between the heating cavity and the heat exchange cavity, a conveying channel is arranged on the interlayer, one side of the waste gas desorption box is respectively and fixedly provided with a low-temperature heat exchange outlet and a low-temperature inlet near the heating cavity and the heat exchange cavity, a high-temperature inlet is fixedly arranged between the low-temperature heat exchange outlet and the low-temperature inlet, and one side of the waste gas desorption box far away from the low-temperature inlet is fixedly provided with a high-temperature heat exchange outlet, the whole device of the utility, can reduce the energy consumption, thereby achieving the purposes of less loss, low operating cost and good purification effect and having certain popularization effect.

Description

Desorption reheating device

Technical Field

The utility model relates to a waste gas purification equipment field specifically is a desorption reheating device.

Background

VOCS are english acronyms of volatile organic compounds, defined in several categories, for example, the american ASTM D3960-98 standard defines VOCS as any organic compound capable of participating in atmospheric photochemical reactions, the definition of the U.S. federal Environmental Protection Agency (EPA): the volatile organic compounds are any carbon compounds participating in atmospheric photochemical reaction except CO, CO2, H2CO3, metal carbide, metal carbonate and ammonium carbonate, not only pollute the environment, but also cause serious damage to human bodies, so that the waste gas is of great importance, at present, in order to ensure that the purification rate of the waste gas is higher, the waste gas is concentrated and then heated to generate a chemical reaction to generate harmless substances so as to achieve the purification effect, however, the reaction is not complete in the heating process due to the low temperature in the operation process, the purification rate is low, and the energy consumption is high, so that a desorption and heating device is needed to solve the problems.

Disclosure of Invention

An object of the utility model is to provide a desorption reheating device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a desorption reheating device comprises a waste gas desorption box, electric heating pipes and a plate type heat exchanger, wherein supporting legs are fixedly mounted at two ends of the bottom of the waste gas desorption box, a heating cavity and a heat exchange cavity are sequentially arranged in the waste gas desorption box from top to bottom, an interlayer is arranged between the heating cavity and the heat exchange cavity, a conveying channel is arranged on the interlayer, a low-temperature heat exchange outlet and a low-temperature inlet are respectively and fixedly mounted at one side of the waste gas desorption box close to the heating cavity and the heat exchange cavity, a high-temperature inlet is fixedly mounted between the low-temperature heat exchange outlet and the low-temperature inlet, a high-temperature heat exchange outlet is fixedly mounted at one side of the waste gas desorption box far away from the low-temperature inlet, heat preservation layers are respectively arranged on the inner walls of the heating cavity and the heat exchange cavity, the plate type heat exchanger is placed in the, and a catalyst plate is arranged between the groups of electric heating pipes, and a temperature measuring point is arranged on one side of the waste gas desorption box close to the heating cavity.

Preferably, the plate heat exchanger is provided with a rising channel and a sinking channel.

Preferably, the catalyst plate and the waste gas desorption box are fixedly connected through a clamping groove and a clamping block.

Preferably, one end of the electric heating pipe close to the inner wall of the heating cavity is fixedly provided with a ceramic column.

Preferably, the waste gas desorption box, the supporting legs and the interlayer are fixedly connected through electric welding.

Preferably, the low-temperature heat exchange outlet, the high-temperature inlet, the low-temperature inlet, the high-temperature heat exchange outlet and the waste gas desorption box are integrally formed in a stretching mode.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses in, during the use, waste gas after will desorbing imports to the inside of heat transfer cavity through the low temperature import that sets up, import the inside to the heat transfer cavity through the high temperature import that sets up high temperature medium simultaneously, and carry out the heat transfer to the waste gas of high concentration and high temperature medium through the plate heat exchanger that has ascending channel and sink the passageway that sets up, high temperature medium after the heat transfer can be derived through high temperature heat transfer export simultaneously, and high concentration waste gas after the heat transfer can get into to heating cavity inside through seting up the transfer passage on the interlayer, whole process can heat the waste gas of system of infusion, make its temperature index reach the optimum temperature of catalyst reaction, can reduce the consumption of the energy, thereby it is few to reach the loss, the working costs is low and the good effect of purifying effect.

2. The utility model discloses in, during the use, detach the temperature measurement to the high concentration waste gas after the heat transfer at the temperature measurement point that the case is close to heating cavity one side through the setting, and start electric heating pipe, high concentration waste gas after the heat transfer combines the catalyst of coating on the catalyst board to carry out chemical reaction, convert into carbon dioxide, the aqueous vapor and give off heat, thereby finally reach and really accomplish the hi-purification to waste gas, can detach the inside and the outside of attaching the case with waste gas through setting up the heat preservation simultaneously and keep apart, avoid its external temperature environment to its inside heat transfer, the reaction process of heating causes certain influence, thereby reduce its purification rate, in this time, the ceramic post through fixed mounting in electric heating pipe one end has temperature resistant withstand voltage's function.

Drawings

FIG. 1 is a schematic view of the overall external structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the heat exchange chamber of the present invention;

FIG. 3 is a schematic view of the internal structure of the heating chamber of the present invention;

in the figure: 1-a waste gas desorption box, 2-a low-temperature heat exchange outlet, 3-a high-temperature inlet, 4-a low-temperature inlet, 5-supporting legs, 6-an electric heating pipe, 7-a heat exchange cavity, 8-a heat preservation layer, 9-a temperature measuring point, 10-a conveying channel, 11-an interlayer, 12-a plate heat exchanger, 13-a high-temperature heat exchange outlet, 14-a catalyst plate and 15-a heating cavity.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution:

a desorption reheating device comprises a waste gas desorption box 1, an electric heating pipe 6 and a plate heat exchanger 12, wherein supporting legs 5 are fixedly mounted at two ends of the bottom of the waste gas desorption box 1, a heating cavity 15 and a heat exchange cavity 7 are sequentially arranged in the waste gas desorption box 1 from top to bottom, an interlayer 11 is arranged between the heating cavity 15 and the heat exchange cavity 7, a conveying channel 10 is arranged on the interlayer 11, a low-temperature heat exchange outlet 2 and a low-temperature inlet 4 are fixedly mounted at positions, close to the heating cavity 15 and the heat exchange cavity 7, on one side of the waste gas desorption box 1, a high-temperature heat exchange outlet 13 is fixedly mounted at a position far away from the low-temperature inlet 4, a heat preservation layer 8 is arranged on the inner walls of the heating cavity 15 and the heat exchange cavity 7, the plate heat exchanger 12 is arranged in the heat exchange cavity 7, when the device is used, the desorbed waste gas is guided into the heat exchange cavity 7 through the low-temperature inlet 4, the high-temperature medium is guided into the heat exchange cavity 7 through the high-temperature inlet 3, the high-concentration waste gas and the high-temperature medium are subjected to heat exchange through the plate heat exchanger 12 with the ascending channel and the descending channel, the high-temperature medium subjected to heat exchange is guided out through the high-temperature heat exchange outlet 13, the high-concentration waste gas subjected to heat exchange enters the heating cavity 15 through the conveying channel 10 arranged on the interlayer 11, the heat energy can be heated and immersed in the waste gas of the system in the whole process, the temperature index of the waste gas reaches the optimal temperature of the catalyst reaction, the energy consumption can be reduced, the effects of less loss, low running cost and good purification effect are achieved, a plurality of groups of electric heating pipes 6 are fixedly arranged in the heating cavity 15, a catalyst plate 14 is arranged between the groups of electric heating pipes 6, a temperature measuring point 9 is arranged on one side of the exhaust gas desorption box 1 close to the heating cavity 15, and when in use, the temperature of the high-concentration waste gas after heat exchange is measured by a temperature measuring point 9 arranged on one side of the waste gas desorption box 1 close to the heating cavity 15, the electric heating pipe 6 is started, the high concentration exhaust gas after heat exchange is chemically reacted with the catalyst coated on the catalyst plate 14, converted into carbon dioxide, water vapor and discharged heat, thereby finally achieving the real high purification of the waste gas, simultaneously isolating the inside and the outside of the waste gas desorption box 1 by arranging the heat preservation layer 8, avoiding certain influence on the reaction process of the heat exchange and the heating inside the waste gas desorption box caused by the external temperature environment, thereby reducing the purification rate thereof and having the temperature and pressure resistant function through the ceramic column fixedly installed at one end of the electric heating tube 6.

The utility model discloses the theory of operation: when the device is used, desorbed waste gas is guided into the heat exchange cavity 7 through the low-temperature inlet 4, a high-temperature medium is guided into the heat exchange cavity 7 through the high-temperature inlet 3, high-concentration waste gas and the high-temperature medium are subjected to heat exchange through the plate heat exchanger 12 with the ascending channel and the descending channel, the high-temperature medium after heat exchange is guided out through the high-temperature heat exchange outlet 13, the high-concentration waste gas after heat exchange enters the heating cavity 15 through the conveying channel 10 arranged on the interlayer 11, the high-concentration waste gas after heat exchange is subjected to temperature measurement through the temperature measurement point 9 arranged on one side of the waste gas desorption box 1 close to the heating cavity 15, the electric heating pipe 6 is started, the high-concentration waste gas after heat exchange is subjected to chemical reaction in combination with a catalyst coated on the catalyst plate 14 and is converted into carbon dioxide, the whole device has simple structure, so that the temperature index of the device reaches the optimal temperature of the catalyst reaction, the energy consumption can be reduced, the effects of less loss, low operation cost and good purification effect are achieved, and the device has certain popularization value.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a desorption reheating device, includes that waste gas desorption case (1), electric heating pipe (6) and plate heat exchanger (12), its characterized in that: the waste gas desorption box comprises a waste gas desorption box body (1), supporting legs (5) are fixedly mounted at two ends of the bottom of the waste gas desorption box body (1), a heating cavity body (15) and a heat exchange cavity body (7) are sequentially arranged in the waste gas desorption box body (1) from top to bottom, an interlayer (11) is arranged between the heating cavity body (15) and the heat exchange cavity body (7), a conveying channel (10) is arranged on the interlayer (11), a low-temperature heat exchange outlet (2) and a low-temperature inlet (4) are fixedly mounted at positions, close to the heating cavity body (15) and the heat exchange cavity body (7), of one side of the waste gas desorption box body (1), away from the low-temperature inlet (4), a high-temperature inlet (3) is fixedly mounted between the low-temperature heat exchange outlet (2) and the low-temperature inlet (4), a high-temperature heat exchange outlet (13) is fixedly mounted at one side of, a plate heat exchanger (12) is placed in the heat exchange cavity (7), a plurality of groups of electric heating pipes (6) are fixedly installed in the heating cavity (15), a catalyst plate (14) is arranged between the plurality of groups of electric heating pipes (6), and a temperature measuring point (9) is arranged on one side, close to the heating cavity (15), of the waste gas desorption box (1).

2. The desorption reheating device according to claim 1, wherein: and the plate heat exchanger (12) is provided with a rising channel and a sinking channel.

3. The desorption reheating device according to claim 1, wherein: the catalyst plate (14) is fixedly connected with the waste gas desorption box (1) through a clamping groove and a clamping block.

4. The desorption reheating device according to claim 1, wherein: and a ceramic column is fixedly arranged at one end of the electric heating pipe (6) close to the inner wall of the heating cavity (15).

5. The desorption reheating device according to claim 1, wherein: the waste gas desorption box (1) is fixedly connected with the supporting legs (5) and the interlayer (11) through electric welding.

6. The desorption reheating device according to claim 1, wherein: and the low-temperature heat exchange outlet (2), the high-temperature inlet (3), the low-temperature inlet (4), the high-temperature heat exchange outlet (13) and the waste gas desorption box (1) are integrally formed by stretching.