CN214097075U

CN214097075U - Multi-component volatile organic compound stable generating device

Info

Publication number: CN214097075U
Application number: CN202022862389.4U
Authority: CN
Inventors: 刘俊杰; 张丁超; 杨沫
Original assignee: Tianjin Zhongtian Environmental Technology Co Ltd
Current assignee: Tianjin Zhongtian Environmental Technology Co Ltd
Priority date: 2020-12-02
Filing date: 2020-12-02
Publication date: 2021-08-31
Anticipated expiration: 2030-12-02

Abstract

The utility model relates to an air purification technical field especially relates to a multicomponent volatile organic compounds stabilizes generating device, it includes the constant flow pump, the constant current buffer, evaporating chamber and buffer tank, the constant flow pump entry passes through connecting pipe and pollutant solution intercommunication, the constant flow pump export passes through connecting pipe and constant current buffer entry intercommunication, the siphon atomizer is installed to the evaporating chamber entrance, the siphon atomizer is equipped with siphon atomizer pollutant import, compressed air import and atomizing nozzle, siphon atomizer pollutant import passes through connecting pipe and constant current buffer export intercommunication, compressed air import passes through compressed air pipeline and air pump intercommunication, atomizing nozzle is towards the evaporating chamber inner chamber, the evaporating chamber export passes through connecting pipe and buffer tank import intercommunication, buffer tank export has organic thing import intercommunication with detection device. The device provided by the utility model simple structure can realize that the pollutant is stable, accurate normal atmospheric temperature output, makes the testing result true more accurate.

Description

Multi-component volatile organic compound stable generating device

Technical Field

The utility model relates to an air purification technical field especially relates to a multicomponent volatile organic compounds stabilizes generating device.

Background

With the rapid development of the electronic chip industry, the requirement on the cleanliness of the production environment of the chip industry is more and more strict, and therefore, higher requirements are put forward on the performance of the air conditioning system. The chemical filter is a basic component for meeting the grade of chemical pollutants in the environment control system, and the grade of the environment control system is directly influenced by the performance of the chemical filter. The chemical filter sample cannot be installed in a real system for performance verification, so that the chemical filter sample is very important for factory performance detection of the filter.

In the adsorption performance test of the chemical filter, the performance of the organic gas filter is an important parameter. In the organic gas detection process of the chemical filter, a stable organic gas pollution source needs to be obtained at the upstream, and the filtering performance can be detected at the downstream. Therefore, a high-precision stable volatile organic gas generator for a chemical filter is provided.

There are two ways of generating organic gases: one is cold generation and the other is hot generation.

The cold generation method is to use a bubbling mode to blow compressed air into the solution and take out the pollutants through bubbles. The generating device has small generating concentration and large concentration fluctuation, and the generating concentration fluctuates greatly along with the reduction of the solution concentration for the non-pure solution.

The other heat generation method is a heating volatilization method, and the polluted gas is obtained by heating and volatilizing the pollutant solution, and the method is not influenced by the concentration of the solution. The method for the pollutants to enter the evaporation chamber is divided into two modes, one mode is that the evaporation chamber is carried out by adopting a syringe pump, the injection amount of the mode is constant, but the solvent of the syringe pump is limited, and the method cannot be applied to the performance test of a chemical filter with high adsorption performance; and the other generation mode adopts a constant flow pump, and the mode can realize long-time continuous pumping of liquid. However, when the constant flow pump pumps organic liquid, periodic concentration fluctuation occurs, that is, because a certain gap exists between the rotating shafts of the constant flow pump, the situation that the organic liquid is pumped into the gap occurs, and the concentration of pollutants fluctuates.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a simple structure is provided, can realize that the pollutant is stable, the stable generating device of multicomponent volatile organic compounds of accurate normal atmospheric temperature output.

The utility model discloses a realize through following technical scheme:

the utility model provides a multicomponent volatile organic compounds stabilizes generating device, it includes the constant-flow pump, the constant-flow buffer, evaporating chamber and buffer tank, the constant-flow pump entry is through connecting pipe and pollutant solution intercommunication, the constant-flow pump export is through connecting pipe and constant-flow buffer entry intercommunication, the siphon atomizer is installed to the evaporating chamber entrance, the siphon atomizer is equipped with siphon atomizer pollutant import, compressed air import and atomizing nozzle, siphon atomizer pollutant import passes through connecting pipe and constant-flow buffer export intercommunication, compressed air import passes through compressed air pipeline and air pump intercommunication, atomizing nozzle is towards the evaporating chamber inner chamber, the evaporating chamber export passes through connecting pipe and buffer tank import intercommunication, buffer tank export and detection device have organic thing import intercommunication.

Preferably, a plurality of heating devices are fixedly installed on the outer wall of the evaporation chamber, the evaporation chamber is of a double-layer structure with an interlayer, and heating wires are wound in the interlayer.

Further, the outer wall of the evaporation chamber is coated with aluminum silicate heat preservation cotton.

Furthermore, a first evaporation chamber flow equalizing pore plate and a second evaporation chamber flow equalizing pore plate are fixedly arranged in the evaporation chamber.

Optimally, the flow equalizing holes of the flow equalizing pore plate of the first evaporation chamber are distributed along the outer edge of the flow equalizing plate, and the flow equalizing holes of the flow equalizing pore plate of the second evaporation chamber are distributed along the center of the flow equalizing plate.

Furthermore, a first buffer tank flow equalizing pore plate and a second buffer tank flow equalizing pore plate are fixedly mounted in the buffer tanks.

Optimally, the flow equalizing holes of the flow equalizing hole plate of the first buffer tank are distributed along the outer edge of the flow equalizing plate, and the flow equalizing holes of the flow equalizing hole plate of the second buffer tank are distributed along the center of the flow equalizing plate.

Furthermore, a plurality of flow slowing fins are fixedly arranged in the constant flow buffer.

Preferably, the connecting pipe is made of fluororubber.

The beneficial effects of the utility model

The utility model discloses a multicomponent volatile organic compounds stabilizes generating device has following advantage:

1. the structure is simple, and the problem of pollutant concentration fluctuation caused by the periodic motion of the rotating shaft of the constant flow pump can be solved;

2. the device is provided with a gas mixing and flow equalizing device, so that stable and accurate output of organic gas at normal temperature can be realized.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic view of the structure of the first flow equalizing pore plate of the first evaporation chamber and the first flow equalizing pore plate of the first buffer tank.

FIG. 3 is a schematic view of the structure of the second evaporation chamber and the second buffer tank flow equalizing pore plate.

In the figure, 1, a constant flow pump, 2, a constant flow buffer, 3, a slow flow fin, 4, a connecting pipe, 5, an evaporation chamber, 6, a heating wire, 7, an interlayer, 8, a buffer tank, 9, a siphon atomizer, 10, an air pump, 11, a compressed air pipeline, 12, an atomizing nozzle, 13, a first evaporation chamber flow equalizing pore plate, 14, a second evaporation chamber flow equalizing pore plate, 15, a heating device, 16, a first buffer tank flow equalizing pore plate, 17, a second buffer tank flow equalizing pore plate and 18, a buffer tank outlet are arranged.

Detailed Description

The utility model provides a multicomponent volatile organic compounds stabilizes generating device, it includes constant flow pump 1, constant flow buffer 2, evaporating chamber 5 and buffer tank 8, the constant flow pump entry is through connecting pipe and pollutant solution intercommunication, the constant flow pump export is through connecting pipe 4 and constant flow buffer entry intercommunication, siphon atomizer 9 is installed to the evaporating chamber entrance, the siphon atomizer is equipped with siphon atomizer pollutant import, compressed air import and atomizer 12, siphon atomizer pollutant import passes through connecting pipe and constant flow buffer export intercommunication, compressed air import passes through compressed air pipeline 11 and air pump 10 intercommunication, the atomizer is towards the evaporating chamber inner chamber, the evaporating chamber export passes through connecting pipe and buffer tank import intercommunication, buffer tank export 18 and organic compounds import intercommunication of detection device (not shown).

Preferably, a plurality of heating devices 15 are fixedly installed on the outer wall of the evaporation chamber, the evaporation chamber is of a double-layer structure with an interlayer 7, and a heating wire 6 is wound in the interlayer, so that gas in the evaporation chamber can be uniformly and effectively heated, the temperature of atomized gas can be kept constant, and the control precision can reach about 0.2 ℃.

Further, the outer wall of the evaporation chamber is coated with aluminum silicate heat-insulating cotton (not shown), so that the heat-insulating property of the evaporation chamber is ensured, and the temperature constancy of the atomized gas can be controlled.

Furthermore, a first evaporation chamber flow equalizing pore plate 13 and a second evaporation chamber flow equalizing pore plate 14 are fixedly arranged in the evaporation chamber, so that the evaporation flow equalizing effect of the organic gas in the evaporation chamber can be enhanced.

Optimally, the flow equalizing holes of the flow equalizing pore plate of the first evaporation chamber are distributed along the outer edge of the flow equalizing plate, and the flow equalizing holes of the flow equalizing pore plate of the second evaporation chamber are distributed along the center of the flow equalizing plate, so that the flow equalizing effect of the organic gas is further enhanced.

Furthermore, a first buffer tank flow equalizing pore plate 16 and a second buffer tank flow equalizing pore plate 17 are fixedly mounted in the buffer tank, so that the buffering and flow equalizing effect of organic gas in the buffer tank can be enhanced.

Optimized, the flow equalizing holes of the flow equalizing pore plate of the first buffer tank are distributed along the outer edge of the flow equalizing plate, the flow equalizing holes of the flow equalizing pore plate of the second buffer tank are distributed along the center of the flow equalizing plate, and the buffering and flow equalizing effect of organic gas in the buffer tank is further enhanced.

Furthermore, a plurality of flow buffering fins 3 are fixedly arranged in the constant flow buffer, so that the constant flow buffering effect of the constant flow buffer can be enhanced.

Preferably, the connecting pipe is made of fluororubber. Can prevent the organic solution from causing corrosion and softening to the connecting pipe.

A multi-component volatile organic compound stable generating device during operation, pollutant solution enters from a constant flow pump inlet, enters a siphon atomizer after being pumped into a constant flow buffer through the constant flow pump and buffered, meanwhile, compressed air is pumped into the siphon atomizer through an air pump, the two are sprayed into an evaporation chamber through an atomizing nozzle of the siphon atomizer after being mixed and atomized by the siphon atomizer, enter a buffer tank after being gasified by the evaporation chamber and are cooled and mixed, and then are discharged to a detecting device through a buffer tank outlet to detect the filtering performance of a chemical filter.

The constant flow buffer can improve the retention time of the organic solution and reduce the fluctuation of the pumping quantity of the organic solution caused by the gap of the rotating shaft of the constant flow pump; the evaporation chamber can keep the temperature of the organic gas constant, the control temperature precision can reach 0.2 ℃, the buffer gas tank can further cool and mix the organic gas, the concentration fluctuation caused by the constant flow pump is further reduced, the concentration of the organic gas finally entering the detection device is stable, the accurate normal temperature output is kept, and the detection result is more real and accurate.

To sum up, the utility model discloses a multicomponent volatile organic compounds stabilizes generating device who protects, simple structure can realize that the pollutant is stable, accurate normal atmospheric temperature output, makes the testing result more true accurate.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a multicomponent volatile organic compounds stabilizes generating device, a serial communication port, including the constant flow pump, the constant flow buffer, evaporating chamber and buffer tank, the constant flow pump entry passes through connecting pipe and pollutant solution intercommunication, the constant flow pump export is through connecting pipe and constant flow buffer entry intercommunication, the siphon atomizer is installed to the evaporating chamber entrance, the siphon atomizer is equipped with siphon atomizer pollutant import, compressed air import and atomizing nozzle, siphon atomizer pollutant import passes through connecting pipe and constant flow buffer export intercommunication, compressed air import passes through compressed air pipeline and air pump intercommunication, atomizing nozzle is towards the evaporating chamber inner chamber, the evaporating chamber export passes through connecting pipe and buffer tank import intercommunication, buffer tank export and detection device have organic matter import intercommunication.

2. The multi-component volatile organic compound stable generation device according to claim 1, wherein a plurality of heating devices are fixedly installed on the outer wall of the evaporation chamber, the evaporation chamber is of a double-layer structure with an interlayer, and heating wires are wound in the interlayer.

3. The multi-component volatile organic compound stable generation device of claim 2, wherein the outer wall of the evaporation chamber is coated with aluminum silicate heat preservation cotton.

4. The multi-component stable volatile organic compound generation device of claim 1, wherein the first and second flow equalization orifice plates are fixedly mounted in the evaporation chamber.

5. The device of claim 4, wherein the flow equalizing holes of the flow equalizing pore plate of the first evaporation chamber are distributed along the outer edge of the flow equalizing plate, and the flow equalizing holes of the flow equalizing pore plate of the second evaporation chamber are distributed along the center of the flow equalizing plate.

6. The multi-component stable volatile organic compound generation device of claim 1, wherein a first buffer tank flow equalization orifice plate and a second buffer tank flow equalization orifice plate are fixedly mounted in the buffer tanks.

7. The multi-component volatile organic compound stable generating device of claim 6, wherein the flow equalizing holes of the first buffer tank flow equalizing hole plate are distributed along the outer edge of the flow equalizing plate, and the flow equalizing holes of the second buffer tank flow equalizing hole plate are distributed along the center of the flow equalizing plate.

8. The multiple component voc steady generation apparatus of claim 1, wherein a plurality of flow slowing fins are fixedly mounted in the constant flow buffer.

9. The multiple-component voc stabilized generator according to claim 1, wherein the connecting tube is made of viton.