CN205426890U - Supporting device of gas analysis appearance examination - Google Patents

Abstract

The utility model relates to a supporting device of gas analysis appearance examination belongs to gas analysis appearance examination field, and it includes following part: manual three -way valve, filter, solenoid valve, sampling pump, check valve, sample gas flowmeter and evacuation flowmeter, it is above the part connects gradually, it is gaseous that two interfaces of manual three -way valve front end communicate standard gas and zero point respectively. Gaseous behind the filter, it is continuous with sample gas flowmeter and evacuation flowmeter respectively through two tee bends again after, to get into solenoid valve and sampling pump through the tee bend. The utility model discloses the device that uses of designing can the stable sample of effectual realizations sample gas, the calibration operation of whole gas analysis appearance before being suitable for.

Description

A gas analyzer verification supporting device

technical field

The utility model relates to the field of verification of gas analyzers, in particular to a matching device for verification of gas analyzers.

Background technique

A gas analyzer is a device that uses optical, electrochemical and other methods to continuously analyze and measure the measured gas content. It is mainly used for hand-held use of small fuel oil and gas boiler pollution discharge or environmental monitoring near pollution sources. Due to the variety of gas analyzer product models, there are generally two current sampling methods: one is the sampling pump equipped with the instrument, and the stability of the self-equipped sampling pump varies according to various manufacturers; the other is an external sampling pump installed on the flue gas analyzer. , the loose structure is very inconvenient to operate.

Utility model content

The purpose of this utility model is to overcome the defects of the above-mentioned prior art and provide a gas analyzer verification supporting device, by using this device, stable sampling of different gases and zero gases can be performed. Its technical solution is:

A gas analyzer verification supporting device, including the following components: a manual three-way valve, a filter, a solenoid valve, a sampling pump, a one-way valve, a sample gas flowmeter and an exhaust flowmeter;

Wherein, the above-mentioned components are connected in sequence;

Wherein, the two ports at the front end of the manual three-way valve are respectively connected with standard gas and zero point gas.

Further, the filter can be installed externally or internally.

Furthermore, the filter is divided into three types: water removal, dust removal, and impurity gas removal, and can be installed by itself according to needs.

Further, the solenoid valve is connected with the sampling pump train.

Beneficial effects: the gas analyzer verification supporting device of the present invention can effectively realize the stable sampling of sample gas, and this device can be used in various occasions easily, such as laboratories, harsh industrial sites, etc., and is suitable for all current gas analyzers Verification work.

Description of drawings

Fig. 1 is the connection diagram of each part of the utility model

Figure 2 is a schematic diagram of the external shape of the gas analyzer verification device

In the figure: 1. Manual three-way valve, 2. Filter, 3. Solenoid valve, 4. Sampling pump, 5. One-way valve, 6. Sample gas flow meter, 7. Empty flow meter.

detailed description

The utility model is described further in conjunction with accompanying drawing now. The attached drawing is a simplified schematic diagram only to schematically illustrate the basic structure of the utility model, so it only shows the configuration related to the utility model.

Referring to Fig. 1, the supporting device for gas analyzer verification of the present invention includes the following components: manual three-way valve 1, filter 2, electromagnetic valve 3, sampling pump 4, check valve 5, sample gas flowmeter 6 and the discharge flow rate Count 7; the above components are connected in sequence; the two ports at the front end of the manual three-way valve 1 are respectively connected to the standard gas and the zero point gas. After the gas passes through the filter, it enters the solenoid valve and the sampling pump through the three-way, and then passes through two three-way Connect to the sample gas flow meter and the exhaust flow meter respectively.

The manual three-way valve 1 can respectively select the sample gas inlet and the zero gas inlet, which can realize the calibration of zero gas or span gas in the actual measurement work, and can realize the long-term uninterrupted work of the instrument.

Solenoid valve 3 and sampling pump 4 are connected in parallel. When the gas analyzer to be detected does not have a built-in sampling pump, the button of the verification device needs to be pressed. At this time, solenoid valve 3 is closed, sampling pump 4 is turned on, and the gas to be detected passes through sampling pump 4. The outflow is discharged through the sample gas flow meter and the emptying flow meter respectively. The outlet of the sample gas flow meter is connected to the gas analyzer. When the detected gas analyzer has a built-in sampling pump, the instrument can work directly without power supply, the sampling pump 4 does not work, and the detected gas enters the sample gas flowmeter and the exhaust flowmeter through the normally open solenoid valve 3, among which The outlet of the sample gas flowmeter is connected to the gas analyzer.

Figure 2 is a schematic diagram of the external shape of the gas analyzer verification device. The left side of the device is the gas inlet, and the right side is the gas outlet. After the sample gas or zero gas to be tested passes through the manual tee, it enters the sampling pump through the filter, then enters the evacuation flowmeter and the sample gas flowmeter, and then passes through the sample gas flowmeter to the gas analyzer verification device.

Or, after the sample gas or zero gas to be tested passes through the manual tee, it enters the solenoid valve through the filter, then enters the emptying flowmeter and the sample gas flowmeter, and then passes through the sample gas flowmeter to the gas analyzer verification device.

The gas analyzer verification supporting device of the utility model better solves the technical problems of the gas analyzer verification, and provides a good method for realizing stable gas sampling, effectively realizing the stable and effective sampling of the gas analyzer.

Although the utility model has been described in detail above, the utility model is not limited thereto, and those skilled in the art can make various modifications according to the principles of the utility model. Therefore, all modifications made according to the principle of the utility model should be understood as falling into the protection scope of the utility model.

Claims (4)

1. a gas analyser detection matching device, it is characterized in that, including such as lower component: manual three-way valve (1), filter (2), electromagnetic valve (3), sampling pump (4), check valve (5), sample gas effusion meter (6) and evacuation flow gauge (7)；

Wherein, the above parts is sequentially connected with；

Wherein, two, described manual three-way valve (1) front end interface is respectively communicated with calibrating gas and zero gas.

Gas analyser detection matching device the most according to claim 1, it is characterised in that described filter (2) external installation or built-in installation.

Gas analyser detection matching device the most according to claim 1 and 2, it is characterised in that described filter (2) is except water filter or dust removal filter.

Gas analyser detection matching device the most according to claim 1, it is characterised in that described electromagnetic valve (3) is connected side by side with sampling pump (4).