CN211453537U

CN211453537U - Volatile organic gas monitoring devices

Info

Publication number: CN211453537U
Application number: CN201922156337.2U
Authority: CN
Inventors: 乔稳; 王新峰; 董伟; 谢景义
Original assignee: Shandong Haihui Environmental Technology Co ltd
Current assignee: Shandong Haihui Environmental Technology Co ltd
Priority date: 2019-12-04
Filing date: 2019-12-04
Publication date: 2020-09-08
Anticipated expiration: 2029-12-04

Abstract

The utility model discloses a volatile organic gas monitoring devices belongs to environmental monitoring technical field. The volatile organic gas monitoring device comprises a filtering device, a sampling device, a drainage and oil discharge device, a condenser, a peristaltic pump, a mass flow controller, an air chamber, a sampling pump and a drain pipe. The utility model provides a volatile organic gas monitoring devices can effectively the filtering impurity in the monitoring gas in advance, improves the accuracy of monitoring and the life of detector.

Description

Volatile organic gas monitoring devices

Technical Field

The utility model relates to an environmental monitoring technical field, concretely relates to volatile organic gas monitoring devices.

Background

Volatile Organic Compounds (VOCs) are the most prevalent organic compounds in the atmosphere and have the most severe environmental impact. The existence of VOCs has certain harm to human health, and is one of the 'harmful air pollutants' concerned at home and abroad in recent years. With the development of economy, the problem of pollution of VOCs is becoming more and more serious. In order to monitor and effectively treat VOCs, VOCs measurement is added in environmental monitoring projects in all countries in the world at present.

The current monitoring modes of the volatile organic pollutants in the atmosphere are mainly divided into an off-line monitoring mode and an on-line monitoring mode. Compared with offline monitoring, online monitoring not only reduces the influence of factors such as personnel, appliances and transportation, but also can meet the requirement of real-time monitoring of VOCs which change constantly in the atmosphere. For example, in the utility model with patent number CN 207036775U, an online monitoring system for volatile organic gases is provided, which can continuously monitor the gases. However, due to the existence of various impurities in the atmosphere, when the gas to be detected enters the detection device, part of the impurities in the atmosphere also enter the detection device to cause pollution of the detection device, and the pollution of the detection device affects the monitoring accuracy and the service life of the detector.

SUMMERY OF THE UTILITY MODEL

The utility model is directed to the aforesaid technical problem of impurity influence monitor life-span and monitoring result accuracy in the atmosphere, provide a volatile organic gas monitoring devices, impurity in can effective filtering monitoring gas in advance improves the accuracy of monitoring and the life of detector.

In order to solve the technical problem, the utility model provides a volatile organic gas monitoring device, which comprises a filtering device, a sampling device, a drainage and oil discharge device, a condenser, a peristaltic pump, a mass flow controller, an air chamber, a sampling pump and a drainage pipe;

the outlet of the filtering device is connected with the inlet of the sampling device; the outlet of the sampling device is connected with the upper path of the drainage oil discharge device, and the right path of the drainage oil discharge device is connected with the left path of the condenser; the lower path of the drainage oil discharge device is connected with a drainage pipe; the lower path of the condenser is connected with the upper path of the peristaltic pump; the lower path of the peristaltic pump is connected with a drainage pipe; the right path of the condenser is connected with an inlet of the mass flow controller; the left path of the gas chamber is connected with an outlet of the mass flow controller; the lower path of the air chamber is connected with the upper path of the sampling pump; the lower path of the sampling pump is connected with a drainage pipe.

Preferably, the drain and oil drain device has an automatic cleaning function, and the drain and oil drain device performs automatic cleaning at a time period when the detector in the gas chamber performs analysis.

Preferably, the device also comprises a temperature controller; and the temperature controller is connected with the upper path of the condenser.

Preferably, the gas chamber further comprises a CPU, and the CPU is connected with the right path of the gas chamber and controls the work of the volatile organic gas monitoring device.

Preferably, the monitoring system further comprises a GPRS, wherein the GPRS is connected with the CPU and is used for transmitting the monitoring data to the environment monitoring station.

Preferably, the monitoring device further comprises an alarm which is connected with the CPU and gives an alarm when a monitoring numerical value exceeds the standard or the volatile organic gas monitoring device fails.

Preferably, the tail of the drainage pipe is connected with a drainage collector.

Preferably, the gas chamber is made of polytetrafluoroethylene.

The utility model discloses compare in prior art and obtained following technological effect:

the utility model provides a this volatile organic gas monitoring devices can effectively get rid of the pollutant in the monitoring gas in advance, prevents that the pollutant from getting into the detector to reduce the damage of pollutant to the detector, improve the life of detector, make the life of detector improve about 15000h from about 5000 h. Meanwhile, pollutants are reduced, and the monitoring accuracy and the equipment stability are improved.

Furthermore, the drainage and oil discharge device has an automatic cleaning function, and the gap for analyzing the gas to be detected is automatically cleaned by the detector without influencing the normal monitoring work of the monitoring device. Meanwhile, the automatic cleaning can reduce manual outdoor work and further reduce labor cost.

Furthermore, the temperature controller can keep the temperature in the whole device constant, and the stability of the equipment is improved. Meanwhile, the working pressure of the condenser can be reduced, and the damage frequency of the condenser is reduced, so that the operation and maintenance cost is further reduced, and the accuracy of monitoring data is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

FIG. 1 is a schematic view of a connecting structure of a monitoring device for monitoring a volatile organic gas;

wherein, the device comprises a filtering device 1, a sampling device 2, a water and oil discharging device 3, a peristaltic pump 4, a drain pipe 5, a condenser 6, a mass flow controller 7, an air chamber 8, a sampling pump 9, a temperature controller 10, a CPU 11, an alarm 12, a GPRS 13 and a drain collector 14.

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.

The utility model provides a volatile organic gas monitoring devices can effectively the filtering impurity in the monitoring gas in advance, improves the accuracy of monitoring and the life of detector.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

As shown in fig. 1, the utility model provides a volatile organic gas monitoring devices, including filter equipment 1, sampling device 2, drainage oil extraction device 3, condenser 6, peristaltic pump 4, mass flow controller 7, air chamber 8, sampling pump 9 and drain pipe 5. The outlet of the filtering device 1 is connected with the inlet of the sampling device 2; the outlet of the sampling device 2 is connected with the upper path of the drainage oil discharge device 3, and the right path of the drainage oil discharge device 3 is connected with the left path of the condenser 6; the lower path of the drainage and oil discharge device 3 is connected with a drain pipe 5; the lower path of the condenser 6 is connected with the upper path of the peristaltic pump 4; the lower path of the peristaltic pump 4 is connected with a drainage pipe 5; the right path of the condenser 6 is connected with an inlet of a mass flow controller 7; the left path of the air chamber 8 is connected with the outlet of the mass flow controller 7; the lower path of the air chamber 8 is connected with the upper path of the sampling pump 9; the downstream of the sampling pump 9 is connected to the drain pipe 5.

Further, in order to in time clear away the profit impurity of storage among the drainage oil extraction device 3, reduce artifical outdoor work simultaneously, also further reduce the cost of labor, the utility model discloses well drainage oil extraction device 3 has the self-cleaning function, utilizes the detector to carry out the period of analysis and carries out self-cleaning, does not influence the normal monitoring work of monitoring devices.

Further, the stability of the apparatus is improved so that the temperature in the entire apparatus can be kept constant. Meanwhile, the working pressure of the condenser 6 is reduced, the damage frequency of the condenser 6 is reduced, the operation and maintenance cost is further reduced, and the accuracy of monitoring data is improved. In the utility model, the temperature controller 10 is connected to the upper path of the condenser 6.

Further, for more accurate, convenient control whole monitoring system, the utility model discloses in connect CPU 11 in the right side of air chamber 8.

Further, in order to transmit monitoring data to the environment monitoring station, be convenient for carry out real-time supervision, this uses novel including GPRS 13, be connected with CPU 11.

Further, in order to be out of order when monitoring numerical value exceeds standard or volatile organic gas monitoring devices breaks down, can in time make the processing, the utility model discloses in alarm 12, alarm 12 is connected with CPU 11.

The utility model discloses in to the source of thermostat, CPU, GPRS and alarm does not have special restriction, adopt the equipment of the conventional use in this field can.

Further, in order to reduce the pollution of excrement to the environment, this use is novel, and the pipe tail and the excretion collector 14 of excrement pipe 5 are connected, collect the aftertreatment with the excrement, reduce the pollution of excrement to the environment.

Further, in order to reduce the influence that the absorption brought, improve and detect precision and the holistic stability of equipment, the utility model discloses well air chamber 8 is the polytetrafluoroethylene material.

When the volatile organic gas monitoring device works, the CPU 11 controls the whole device, the peristaltic pump 4 drains water to the working condenser 6, and the sampling pump 9 is used for pumping air for sampling. The inlet of the pre-monitoring gas from the filtering device 1 is used for filtering out large particle impurities such as sand and dust in the pre-monitoring gas, the filtered pre-monitoring gas enters the sampling device 2 for sampling, the sampled sample gas enters the drainage oil discharge device 3, the adsorbing material in the automatic drainage oil discharge device removes water and oil impurities in the pre-monitoring gas through adsorption, the sample gas after drainage and oil discharge enters the condenser 6 for cooling, and the cooled gas quantitatively enters the gas chamber 8 through the mass flow controller 7 for monitoring and analysis. The drain 3 is automatically cleaned during the period when the detector is analyzing. The analyzed data is transmitted to the environment monitoring station through GPRS 13. The excrement in the automatic drainage oil discharge device 3, the peristaltic pump 4 and the sampling pump 9 is discharged through the drainage pipe 5 and collected in the drainage collector 14.

The utility model discloses a concrete example is applied to explain the principle and the implementation mode of the utility model, and the explanation of the above example is only used to help understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.

Claims

1. A volatile organic gas monitoring device is characterized by comprising a filtering device, a sampling device, a water and oil discharging device, a condenser, a peristaltic pump, a mass flow controller, an air chamber, a sampling pump and a drainage pipe;

2. The voc as claimed in claim 1 wherein the drain-drain device has an automatic cleaning function, and the drain-drain device is automatically cleaned during the period when the detector in the gas chamber performs analysis.

3. The voc emission monitoring apparatus according to claim 1 further comprising a temperature controller; and the temperature controller is connected with the upper path of the condenser.

4. The monitoring device for volatile organic gases according to any one of claims 1 to 3, further comprising a CPU, wherein the CPU is connected to the right path of the gas chamber to control the operation of the monitoring device for volatile organic gases.

5. The VOC gas monitoring device of claim 4, further comprising a GPRS (general packet radio service) which is connected to the CPU and transmits the monitoring data to the environment monitoring station.

6. The monitoring device of claim 4, further comprising an alarm connected to the CPU for alarming when the monitored value exceeds the standard or the monitoring device of the VOC is out of order.

7. The VOC gas monitoring device as claimed in any one of claims 1 to 3, wherein the tail of the drainage pipe is connected with a drainage collector.

8. The VOC gas monitoring device of any one of claims 1 to 3, wherein the gas chamber is made of polytetrafluoroethylene.