CN210014385U

CN210014385U - Catalytic combustion integrated device

Info

Publication number: CN210014385U
Application number: CN201920534879.6U
Authority: CN
Inventors: 彭芬; 汪壮; 吴卫; 刘彰
Original assignee: Changsha Kaitian Institute Of Technology Environmental Protection Service Co Ltd
Current assignee: Changsha Industrial Research Institute Environmental Protection Co Ltd
Priority date: 2019-04-18
Filing date: 2019-04-18
Publication date: 2020-02-04
Anticipated expiration: 2029-04-18

Abstract

The utility model discloses a catalytic combustion integrated device, which comprises a shell, wherein a strengthened heat exchange area, a heating area and a catalytic combustion area are formed inside the shell; a heat exchanger is arranged in the reinforced heat exchange area, a heater is arranged in the heating area, and a catalyst is filled in the catalytic combustion area; a tail gas outlet of the catalytic combustion zone is communicated with a heat source inlet of the heat exchanger, a cold source outlet of the heat exchanger is communicated with a gas inlet of the heating zone, a gas outlet of the heating zone is communicated with a gas inlet of the catalytic combustion zone, and a waste gas inlet on the reinforced heat exchange zone is communicated with a cold source inlet of the heat exchanger; and a temperature sensor is arranged between the strengthened heat exchange area and the heating area and is electrically connected with a control panel of the heater. The utility model discloses a heat exchanger realizes waste heat utilization, simultaneously through setting up temperature sensor between the intensive heat transfer district and the zone of heating, opens and close the heater according to the temperature testing result is nimble, energy saving and consumption reduction, more economy.

Description

Catalytic combustion integrated device

Technical Field

The utility model belongs to industrial waste gas purifies the field, concretely relates to catalytic combustion integrated device.

Background

In recent years, the severe outbreak of haze has caused the public to pay extensive attention to the atmospheric pollution control. The common industrial waste gas pollution treatment technologies are divided into two major categories, namely a recovery method and a destruction method. The recovery technology mainly aims at waste gas components with recycling value, and waste gas components without recycling value or low recycling value are usually treated by adopting a destruction method.

Common destruction methods include: direct combustion, catalytic combustion, regenerative thermal oxidation, regenerative catalytic oxidation, and the like. The existing catalytic combustion device has the problems of not compact enough structure, insufficient waste heat utilization, low catalytic combustion efficiency and the like.

SUMMERY OF THE UTILITY MODEL

The present application is directed to solving at least one of the problems in the prior art. Therefore, one of the purposes of the present invention is to provide a catalytic combustion integrated device with low energy consumption.

In order to solve the technical problem, the utility model adopts the following technical scheme:

a catalytic combustion integrated device, comprising:

the shell is internally provided with a reinforced heat exchange area, a heating area and a catalytic combustion area;

a heat exchanger is arranged in the reinforced heat exchange area, a heater is arranged in the heating area, and a catalyst is filled in the catalytic combustion area;

a tail gas outlet of the catalytic combustion zone is communicated with a heat source inlet of the heat exchanger, a cold source outlet of the heat exchanger is communicated with a gas inlet of the heating zone, a gas outlet of the heating zone is communicated with a gas inlet of the catalytic combustion zone, and a waste gas inlet on the reinforced heat exchange zone is communicated with a cold source inlet of the heat exchanger;

and a temperature sensor is arranged between the strengthened heat exchange area and the heating area and is electrically connected with a control panel of the heater.

Further, the heat exchanger adopts a plate heat exchanger.

Further, the inner cavity of the shell is divided into a reinforced heat exchange area at the bottom and a catalytic heating area at the top by a transverse partition plate, and the catalytic heating area is divided into the heating area and a catalytic combustion area which are arranged side by a longitudinal partition plate.

Furthermore, a plurality of bearing plates loaded with different catalysts are arranged in the catalytic combustion area along the airflow direction.

Furthermore, an opening for the bearing plate to be inserted is formed in the side wall of the shell, and the bearing plate is inserted into the shell through the opening and guided by a guide slide rail arranged in the shell.

Compared with the prior art, the utility model discloses the beneficial effect who has as follows:

1. the energy consumption is low: a temperature sensor is arranged between the strengthened heat exchange area and the heating area, and the heater is flexibly turned on and off according to a temperature detection result, so that the energy is saved, the consumption is reduced, and the heating device is more economical.

2. And (3) fully utilizing waste heat: the heat exchanger is adopted to enhance heat transfer, and the waste heat is fully utilized, so that the energy-saving effect is achieved, and the structure is very compact.

3. The occupied area is small: adopts a three-dimensional laminated design, has compact structure and small floor area

4. A plurality of groups of catalysts are adopted: according to the condition of waste gas, a plurality of groups of same or different catalysts are adopted, so that the purification efficiency is high.

From top to the utility model discloses collect waste gas preheating (waste heat utilization), heating intensification, catalytic combustion in an organic whole, compact structure, purification efficiency are high, the energy consumption is low, the running cost is low, but wide application in industrial waste gas's purification, and equipment maintenance convenient and fast has extensive using value.

Drawings

FIG. 1 is a schematic structural diagram of a catalytic combustion integrated device;

FIG. 2 is a schematic view of the gas flow of the catalytic combustion integrated unit;

FIG. 3 is a schematic diagram of the heat exchanger gas flow;

FIG. 4 is a schematic diagram of the recuperator exhaust gas preheat flow;

FIG. 5 is a schematic sectional view taken along line A-A in FIG. 4;

FIG. 6 is a schematic sectional view taken along line B-B in FIG. 4;

FIG. 7 is a schematic flow diagram of heat exchanger tail gas waste heat utilization;

FIG. 8 is a schematic sectional view taken along line C-C in FIG. 7;

FIG. 9 is a schematic sectional view taken along line D-D in FIG. 7;

FIG. 10 is a schematic view of the structure of a catalyst support plate;

FIG. 11 is a top view of the catalyst support plate.

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 efforts belong to the protection scope of the present invention.

Example 1

Referring to fig. 1 and 2, the catalytic combustion integrated device comprises a shell 1, wherein a reinforced heat exchange area 2, a heating area 3 and a catalytic combustion area 4 are formed inside the shell 1, a heat exchanger 5 is arranged in the reinforced heat exchange area 2, a heater 6 is arranged in the heating area 3, a catalyst 7 is filled in the catalytic combustion area 4, and an explosion venting port 8 communicated with the catalytic combustion area 4 is further arranged on the shell 1.

In this embodiment, the tail gas outlet of the catalytic combustion zone 4 is communicated with the heat source inlet 501 of the heat exchanger 5, the cold source outlet 502 of the heat exchanger 5 is communicated with the gas inlet of the heating zone 3, the gas outlet of the heating zone 3 is communicated with the gas inlet of the catalytic combustion zone, and the exhaust gas inlet 9 of the heat exchange zone 2 is communicated with the cold source inlet 503 of the heat exchanger 5. The temperature sensor 10 is arranged between the reinforced heat exchange area 2 and the heating area 3, the temperature sensor 10 is electrically connected with the control panel of the heater 6, the temperature sensor 10 feeds a temperature signal back to the controller, so that the working power of the electric heater is controlled, the energy consumption is reduced to the maximum extent, the economical efficiency of the operation of the equipment is ensured, and the control circuit consisting of the electric heater, the control panel and the temperature sensor is designed conventionally in the electric control field and is not repeated herein.

Referring to fig. 2 to 9, the working process in the present embodiment is as follows: waste gas enters from a waste gas inlet 9, enters into the heating zone 3 after being preheated and heated by the enhanced heat exchange zone 2, a temperature sensor 10 is arranged at the inlet of the heating zone 3, the detected temperature data is compared with the set ignition temperature of the waste gas, if the ignition temperature is reached, the heater 6 does not work, the waste gas directly enters the catalytic combustion zone 4, if the detected temperature does not reach the ignition temperature, the working power of the heater 6 is controlled (the corresponding number of electric heating pipes are started), the control panel performs control operation, the waste gas heated by the heating zone 3 further enters the catalytic combustion zone 4, the high-temperature tail gas generated by the oxidation of the catalyst enters the reinforced heat exchange zone 2 from the catalytic combustion tail gas inlet, the high-temperature tail gas is used as a heat source to preheat the incoming normal-temperature waste gas, and the tail gas cooled by heat exchange is discharged after reaching the standard from the heat exchanger 5 through the outlet 11 of the reinforced heat exchange zone 2.

According to the embodiment, the waste heat of the catalytic combustion tail gas is fully utilized, the temperature sensor 10 is arranged between the reinforced heat exchange area 2 and the heating area 3, the heater is flexibly started and stopped according to a temperature detection result, energy is saved, consumption is reduced, and the method is more economical.

Referring to fig. 3-9, it is conceivable that the heat exchanger 5 may be a tongue and groove plate heat exchanger in practical application, which not only has the advantages of high heat exchange efficiency and enhanced heat transfer, but also has a very compact structure. As for the specific structure of the plate heat exchanger, only the heat exchange function needs to be satisfied, and structures such as patents 201610817634.5 and 201320894119.9 can be adopted, which are all the prior art and are not described herein again.

Example 2

Referring to fig. 2, referring to fig. 1, unlike example 1, the inner cavity of the shell 1 of this example is divided into a bottom intensified heat exchange zone 2 and a top catalytic heating zone by a transverse partition 12, and the catalytic heating zone is divided into a heating zone 3 and a catalytic combustion zone 4 arranged side by a longitudinal partition 13. In the embodiment, the heating zone and the catalytic combustion zone are separated by the partition plate and arranged at the top of the reinforced heat exchange zone side by side, and the three-dimensional laminated design is adopted, so that the structure is compact, and the occupied area is small.

Example 3

Referring to fig. 2, 10 and 11, the difference from embodiment 1 is that a carrier plate 14 is disposed along the direction of the air flow in the catalytic combustion region 4 of this embodiment, a catalyst containing groove is formed in the carrier plate 14, an air hole is disposed at the bottom of the containing groove, the catalyst is filled in the containing groove, the air flow flows out from the air hole after catalytic oxidation of the catalyst from the top of the catalyst containing groove, an opening (not shown) for insertion of the carrier plate is disposed on the side wall of the housing 1, a guide slide rail (not shown) is disposed inside the housing 1 and is in butt joint with the opening, the carrier plate 14 is inserted into the housing 1 through the opening, and then both sides are inserted into the guide slide rail for guiding, in order to prevent the exhaust, a seal is required between the carrier plate 14 and the opening to seal the opening, and a handle 15 is provided on the carrier plate 14 to facilitate the extraction of the carrier plate 14 from the housing 1.

In this embodiment, the supporting plate 14 is designed in a drawer type, and can be conveniently inserted into or drawn out from the housing, so as to facilitate installation and disassembly, and the catalyst 7 can be the same or different catalysts can be arranged on the supporting plate 14 according to the waste gas condition, so as to achieve the purpose of efficient purification. The specific components of the catalyst are all selected conventionally in the field of catalytic combustion, and are not described in detail herein.

The above examples are merely illustrative of the present invention clearly and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. Nor is it intended to be exhaustive of all embodiments. And obvious changes and modifications may be made without departing from the scope of the present invention.

Claims

1. A catalytic combustion integrated device, comprising:

2. The apparatus of claim 1, wherein: the heat exchanger adopts a plate heat exchanger.

3. The apparatus of claim 1, wherein: the inner cavity of the shell is divided into a reinforced heat exchange area at the bottom and a catalytic heating area at the top by a transverse partition plate, and the catalytic heating area is divided into the heating area and a catalytic combustion area which are arranged side by a longitudinal partition plate.

4. The apparatus of claim 1, wherein: and a plurality of bearing plates loaded with different catalysts are arranged in the catalytic combustion zone along the airflow direction.

5. The apparatus of claim 4, wherein: the side wall of the shell is provided with an opening for the bearing plate to be inserted, and the bearing plate is inserted into the shell through the opening and guided by a guide slide rail arranged in the shell.