CN213610726U - Catalytic type small-sized laboratory waste gas treatment device - Google Patents

Abstract

The utility model provides a small-size laboratory exhaust treatment device of catalytic type, includes device casing, processing subassembly and electric cabinet, the side of device casing be equipped with waste gas admission line, the processing subassembly include combustible gas detection device, preheating device subassembly and catalysis board group, catalysis board group include first catalysis board and second catalysis board. The waste gas treatment device adopts a catalytic decomposition method to reduce the discharge amount of alkane and alkene gases in the discharged waste gas so as to achieve the purpose of treatment, and meanwhile, the device is internally provided with a combustible gas detection device, so that the safety of the waste gas treatment device in the waste gas treatment process is improved.

Description

Catalytic type small-sized laboratory waste gas treatment device

Technical Field

The utility model particularly relates to a small-size laboratory exhaust treatment device of catalysis formula

Background

The waste gas treatment equipment mainly refers to environment-friendly equipment which protects the environment and purifies air by recovering or removing and reducing harmful components in the discharged tail gas by using different process technologies, so that the environment is not polluted. The common methods for treating waste gas in the laboratory comprise an adsorption method, an absorption method, a catalytic combustion method, a thermal combustion method and the like, and when a purification method is selected, a method with low cost, low energy consumption and no secondary pollution is selected according to specific conditions, so that the purposes of turning harm into benefit and fully recycling components and waste heat are achieved. In most cases, the laboratory exhaust gas treatment device is mainly used for treating exhaust gas by adsorption and catalytic combustion.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving prior art's not enough, provide a small-size laboratory exhaust treatment device of catalysis formula, including device casing, processing subassembly and electric cabinet, the side of device casing be equipped with the waste gas admission line, the waste gas admission line from last hand valve and the relief pressure valve of down being equipped with in proper order, the relief pressure valve link to each other with the manometer.

The processing assembly comprises a combustible gas detection device, a preheating device assembly and a catalytic board assembly, the combustible gas detection device is arranged above a device shell, the preheating device assembly comprises a first heating plate, a second heating plate and a preheating device junction box, the first heating plate and the second heating plate are symmetrically arranged in the device shell in a left-right mode, the first heating plate and the second heating plate are connected with a pressure reducing valve through ventilating hoses, the first heating plate and the second heating plate are respectively connected with the preheating device junction box, the preheating device junction box is symmetrically arranged on the outer sides of the first heating plate and the second heating plate, the preheating device junction box is connected with an electric cabinet through cables, the catalytic board assembly comprises a first catalytic board and a second catalytic board, the first catalytic board and the second catalytic board are respectively arranged on the inner side of the first heating plate and the inner side of the second heating plate, the middle parts of the first catalytic plate and the second catalytic plate are respectively provided with a first thermocouple and a second thermocouple, and the first thermocouple and the second thermocouple are connected with the electric cabinet through cables.

The electric cabinet comprises a concentration display instrument, a temperature control meter group, an indicator lamp group and a switch button, the concentration display instrument is connected with the combustible gas detection device, the temperature control meter group comprises a first temperature control meter and a second temperature control meter, the first temperature control meter is connected with a first thermocouple, the second temperature control meter is connected with a second thermocouple, the indicator lamp group comprises a power indicator lamp, an operation indicator lamp and an alarm buzzer, and the alarm buzzer is connected with the concentration display instrument.

Preferably, the combination of the first heating plate, the first catalytic plate and the first thermocouple is a type C60-90 heater.

Preferably, the combined assembly of the second heating plate, the second catalytic plate and the second thermocouple is a type C60-90 heater.

The waste gas treatment device adopts a catalytic decomposition method to enable alkane and alkene gases in organic waste gas to undergo a catalytic decomposition process under the condition of low temperature, and preferably, the first catalytic plate and the second catalytic plate are made of alumina fiber coatings

The metal platinum of (2).

In order to make the organic waste gas fully react with the first catalytic plate and the second catalytic plate, the device preferably needs to preheat the internal temperature of the waste gas treatment device in advance before carrying out waste gas treatment, the required preheating time is 20min, and the preheating temperature is more than 200 ℃.

Preferably, the alarm buzzer gives an alarm indication when the detection of the combustible gas shows that the concentration of the combustible gas in the exhaust gas is higher than a set value.

Has the advantages that: the utility model discloses a small-size laboratory exhaust treatment device of catalytic type, this exhaust treatment device adopt the catalytic decomposition method to make alkane, alkene gas in the organic waste gas take place the catalytic decomposition process under the lower condition of temperature, reduce the emission of alkane, alkene gas, reach the purpose of administering, are equipped with combustible gas detection device in this device simultaneously, show combustible gas's concentration among the exhaust gas in real time, have improved exhaust treatment in-process exhaust treatment device's security.

Drawings

FIG. 1 is a schematic view of the external structure of a catalytic small laboratory exhaust gas treatment device;

FIG. 2 is a schematic view showing the internal structure of a catalytic small laboratory exhaust gas treatment device;

FIG. 3 is a schematic structural diagram of an electric cabinet;

in the figure: 1. the device comprises a device shell 11, an exhaust gas inlet pipe 12, a pressure reducing valve 13, a hand valve 14, a pressure gauge 2, a processing component 21, a combustible gas detection device 22, a preheating device component 221, a first catalytic plate 222, a second catalytic plate 223, a preheating device junction box 231, a first heating plate 232, a second heating plate 241, a first thermocouple 242, a second thermocouple 25, a ventilation hose 3, an electric cabinet 31, a concentration display instrument 32, a temperature control meter group 321, a first temperature control meter 322, a second temperature control meter 33, an indicator lamp group 331, a power indicator lamp 332, a motion indicator lamp 333, an alarm buzzer 34, a switch button set 333, a temperature control meter group 321, a temperature control meter group

Detailed description of the preferred embodiments

In order to deepen the understanding of the present invention, the present invention is described in detail with reference to the following embodiments and the attached drawings, and the embodiments are only used for explaining the present invention, and do not constitute the limitation to the protection scope of the present invention.

As shown in fig. 1, 2 and 3, a small-size laboratory exhaust treatment device of catalytic type, including device casing 1, processing module 2 and electric cabinet 3, the side of device casing 1 be equipped with waste gas admission line 11, waste gas admission line 11 from last hand valve 13 and relief pressure valve 12 of down being equipped with in proper order, relief pressure valve 12 link to each other with manometer 14.

The processing assembly 2 comprises a combustible gas detection device 21, a preheating device assembly 22 and a catalyst plate assembly, wherein the combustible gas detection device 21 is arranged above the device shell 1, the preheating device assembly 22 comprises a first heating plate 231, a second heating plate 232 and a preheating device junction box 223, the first heating plate 231 and the second heating plate 232 are symmetrically arranged in the device shell 1 from left to right, the first heating plate 231 and the second heating plate 232 are connected with the pressure reducing valve 12 through a ventilation hose 25, the first heating plate 231 and the second heating plate 232 are respectively connected with the preheating device junction box 223, the preheating device junction box 223 is symmetrically arranged at the outer sides of the first heating plate 231 and the second heating plate 232, the preheating device junction box 223 is connected with the electric cabinet 3 through a cable, and the catalyst plate assembly comprises a first catalyst plate 221 and a second catalyst plate 222, the first catalytic plate 221 and the second catalytic plate 222 are respectively installed on the inner side of the first heating plate 231 and the inner side of the second heating plate 232, the middle parts of the first catalytic plate 221 and the second catalytic plate 222 are respectively provided with a first thermocouple 241 and a second thermocouple 242, and the first thermocouple 241 and the second thermocouple 242 are connected with the electric cabinet 3 through cables.

The electric cabinet 3 comprises a concentration display instrument 31, a temperature control meter group 32, an indicator lamp group 33 and a switch button 34, the concentration display instrument 31 is connected with the combustible gas detection device 21, the temperature control meter group 32 comprises a first temperature control meter 321 and a second temperature control meter 322, the first temperature control meter 321 is connected with a first thermocouple 241, the second temperature control meter 322 is connected with a second thermocouple 242, the indicator lamp group 33 comprises a power indicator lamp 331, an operation indicator lamp 332 and an alarm buzzer 333, and the alarm buzzer 333 is connected with the concentration display instrument 31.

The working condition is as follows: as shown in FIG. 1 and FIG. 2, a catalytic small laboratory exhaust gas treatment device needs to preheat the internal temperature of the exhaust gas treatment device in advance before performing exhaust gas treatment, the required preheating time is 20min, the preheating temperature is above 200 ℃, after the preheating process is completed, organic exhaust gas enters the exhaust gas treatment device through an exhaust gas inlet pipe 11 on the outer side of a device shell 1 and is transmitted to the sides of a first heating plate 231 and a second heating plate 232 after being preheated through an air hose 25, the exhaust gas temperature rises after passing through the first heating plate 231 and the second heating plate 232 and is freely diffused to the first catalytic plate 221 and the second catalytic plate 222, because the first catalytic plate 221 and the second catalytic plate 222 are made of alumina fiber coating materials

The exhaust gas and the oxygen in the environment generate low-temperature catalytic reaction at the side surfaces of the first catalytic plate 221 and the second catalytic plate 222, so that the content of alkane and olefin gases in the organic exhaust gas is reduced, the aim of exhaust gas treatment is fulfilled, meanwhile, in order to display the concentration of the combustible gas in the exhaust gas in real time, the combustible gas detection device 21 is installed in the exhaust gas treatment device, and an alarm buzzer 333 on the electric cabinet 3 is used for carrying out alarm indication, so that the safety of the exhaust gas treatment device in the exhaust gas treatment process is improved.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (4)

1. A catalytic small-sized laboratory waste gas treatment device is characterized by comprising a device shell, a treatment assembly and an electric cabinet, wherein a waste gas inlet pipeline is arranged on the side edge of the device shell, a hand valve and a pressure reducing valve are sequentially arranged on the waste gas inlet pipeline from top to bottom, and the pressure reducing valve is connected with a pressure gauge;

the processing assembly comprises a combustible gas detection device, a preheating device assembly and a catalytic board assembly, the combustible gas detection device is arranged above a device shell, the preheating device assembly comprises a first heating plate, a second heating plate and a preheating device junction box, the first heating plate and the second heating plate are symmetrically arranged in the device shell in a left-right mode, the first heating plate and the second heating plate are connected with a pressure reducing valve through ventilating hoses, the first heating plate and the second heating plate are respectively connected with the preheating device junction box, the preheating device junction box is symmetrically arranged on the outer sides of the first heating plate and the second heating plate, the preheating device junction box is connected with an electric cabinet through cables, the catalytic board assembly comprises a first catalytic board and a second catalytic board, the first catalytic board and the second catalytic board are respectively arranged on the inner side of the first heating plate and the inner side of the second heating plate, the middle parts of the first catalytic plate and the second catalytic plate are respectively provided with a first thermocouple and a second thermocouple, and the first thermocouple and the second thermocouple are connected with the electric cabinet through cables;

the electric cabinet comprises a concentration display instrument, a temperature control meter group, an indicator lamp group and a switch button, the concentration display instrument is connected with the combustible gas detection device, the temperature control meter group comprises a first temperature control meter and a second temperature control meter, the first temperature control meter is connected with a first thermocouple, the second temperature control meter is connected with a second thermocouple, the indicator lamp group comprises a power indicator lamp, an operation indicator lamp and an alarm buzzer, and the alarm buzzer is connected with the concentration display instrument.

2. The catalytic compact laboratory exhaust treatment device of claim 1, wherein the combination of the first heating plate, the first catalytic plate, and the first thermocouple is a C60-90 heater.

3. The catalytic compact laboratory exhaust treatment device of claim 1, wherein the combined device of the second heating plate, the second catalytic plate, and the second thermocouple is a C60-90 heater.

4. A catalytic mini laboratory exhaust treatment device according to claim 1, wherein the material of the first catalytic plate and the second catalytic plate is alumina fiber coated platinum metal.

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