CN209673754U

CN209673754U - A kind of balanced type environmental protection sampler

Info

Publication number: CN209673754U
Application number: CN201920316432.1U
Authority: CN
Inventors: 李永兆; 李斌杰
Original assignee: Qingdao Chuangke Machinery Equipment Manufacturing Co Ltd
Current assignee: Qingdao Chuangke Machinery Equipment Manufacturing Co Ltd
Priority date: 2019-03-13
Filing date: 2019-03-13
Publication date: 2019-11-22
Anticipated expiration: 2029-03-13

Abstract

A kind of balanced type environmental protection sampler, it can carry out positive pressure detection flue gas and detection of negative pressure flue gas, it includes that sampling equipment, sampling probe, sampling pipe, detecting instrument and tail gas lead back pipe, when carrying out positive pressure detection flue gas, the sampling equipment extracts test flue gas by sampling pump, sampling probe protrudes into test flue gas, and test flue gas is transferred in detecting instrument by sampling pipe and is detected；When carrying out detection of negative pressure flue gas, detecting instrument rear end connection tail gas leads back pipe, and the exhaust port that the tail gas leads back pipe is connected in sampling equipment.The utility model balanced type environmental protection sampler can make to keep a biggish negative pressure in balanced sampling equipment, improve the accuracy of testing result, can also effectively solve the problems, such as sampling tail gas pollution environment, at low cost, environmental protection is reliable.

Description

A kind of balanced type environmental protection sampler

Technical field

The utility model relates to sample detection field more particularly to a kind of balanced type environmental protection samplers.

Background technique

Currently, the discharge amount of Chinese sulfur dioxide and carbon dioxide has ranked first in the world respectively and second.Largely Power plant, chemical industry, contain a large amount of flue dust, carbon dioxide, sulfur dioxide and nitrogen oxide and few in smelter discharge flue gas Carbon monoxide is measured, flue dust directly influences the environmental quality of atmosphere, enterprise is needed to carry out detection work before discharging, avoids toxic Gas endangers environment.

The detection sampler such as flue gas analyzer, smoke dust analyzer is generallyd use on internal and international to refer to detect flue gas Mark generallys use the mode of negative pressure because detecting instrument is more accurate to guarantee to sample effect, but in sampling, because sampling pump work Rate is small, suction is low, when negative pressure is greater than -1000Pa in equipment (different brands slightly have difference), sampling difficulty will occurs or take not Out the phenomenon that sample, detection effect is influenced.Moreover, after detecting instrument is to flue gas inspection, no aftertreatment device samples tail gas It will be directly discharged in atmosphere, and cause environmental pollution.

Utility model content

To solve the above-mentioned problems, the utility model provides a kind of balanced type environmental protection sampler, by increasing by one section of tail Gas leads back pipe, excessive negative pressure in balanced sampling equipment, and thus increases the pressure range of sampling equipment, improves testing result Accuracy can also effectively solve the problems, such as sampling tail gas pollution environment, and at low cost, environmental protection is reliable.

The purpose of this utility model is achieved through the following technical solutions.

A kind of balanced type environmental protection sampler, can carry out positive pressure detection flue gas and detection of negative pressure flue gas, including sampling equipment, Sampling probe, sampling pipe, detecting instrument and tail gas lead back pipe, and when carrying out positive pressure detection flue gas, the sampling equipment is by taking Sample pumping takes test flue gas, and sampling probe protrudes into test flue gas, and test flue gas is transferred in detecting instrument by sampling pipe It is detected；When carrying out detection of negative pressure flue gas, detecting instrument rear end connection tail gas leads back pipe, and the tail gas leads back the tail gas of pipe Discharge outlet is connected in sampling equipment.

Above-described balanced type environmental protection sampler, the detecting instrument are equipped with tail gas and lead back pipe socket, are convenient for tail Gas leads back pipe access.

Above-described balanced type environmental protection sampler, the measurement range of the detecting instrument be -5000Pa -+ 0.1MPa。

Above-described balanced type environmental protection sampler, it is 100- longer than sampling length of tube that the tail gas leads back length of tube 500mm。

Further, it is shorter as far as possible to lead back length of tube for the tail gas, makes to sample tail gas and returns in sampling equipment as early as possible.

In conclusion the utility model has the following beneficial effects: being examined by the utility model balanced type environmental protection sampler It surveys on instrument and increases by one section of tail gas and lead back pipe, emission is backed into sampling equipment, it can be excessive in balanced sampling equipment Negative pressure, and thus increase the pressure range of sampling equipment, pressure low side is increased to -5000pa by -1000Pa, improves detection knot The accuracy of fruit；Sampling tail gas will not be directly discharged to again air and suffer, and can effectively solve the problems, such as sampling tail gas pollution environment； Only one section of tail gas is increased on the basis of former detection device leads back pipe to the present apparatus, and at low cost, effect is obvious.

Detailed description of the invention

By reading the following detailed description of the preferred embodiment, the scheme of the application and advantage skill common for this field Art personnel will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as practical new to this The limitation of type.In the accompanying drawings:

Fig. 1 is a kind of structure principle chart of the utility model embodiment 1；

Fig. 2 is the surface structure schematic diagram of detecting instrument in Fig. 1.

Component representated by each appended drawing reference in figure are as follows:

1, sampling equipment, 2, sampling probe, 3, sampling pipe, 4, detecting instrument, 5, tail gas lead back pipe, 6, tail gas outlet, 7, exhaust port.

Specific embodiment

The illustrative embodiments of the disclosure are more fully described below in conjunction with attached drawing.It is to be appreciated that providing these realities The mode of applying is to be able to thoroughly understand the disclosure, and the scope of the present disclosure can be communicated completely to this field Technical staff may be realized in various forms the disclosure, without that should be limited by the embodiments set forth herein.

It should be appreciated that the element can be directly connected to when referring to that element is " connected " or " connection " is to another element Or it is attached to another element, or may exist intermediary element.Other terms for describing relationship between element should be with same The mode of sample explain (for example, " ... between ", " neighbouring " etc.).

Embodiment 1

Referring to Fig. 1, Fig. 1 is a kind of balanced type environmental protection sampler of the present embodiment, can carry out positive pressure detection flue gas and bear Pressure detection flue gas, including sampling equipment 1, sampling probe 2, sampling pipe 3, detecting instrument 4 and tail gas lead back pipe 5, the detector Device 4 is connect by sampling pipe 3 with sampling equipment 1, and 3 head of sampling pipe is equipped with sampling probe 2, for extracting test flue gas.It is described Tail gas leads back pipe 5 and is connected with the tail gas outlet 6 of detecting instrument 4, backs into sampling equipment 1 for that will sample tail gas, puts down The big negative pressure to weigh in sampling equipment 1, while avoiding sampling tail gas pollution environment.

Further, 6 position of tail gas outlet is equipped with special tail gas and leads back pipe socket on the detecting instrument 4, is convenient for Tail gas leads back the access of pipe 5, and Fig. 2 illustratively provided a kind of surface structure of detecting instrument, in figure arrow indicate tail gas into Outbound path.

Further, be the accuracy for guaranteeing testing result, the measurement range of the detecting instrument 4 be -5000Pa -+ 0.1MPa。

Further, it is shorter as far as possible (such as 100-500mm longer than sampling pipe 3) to lead back 5 length of pipe for the tail gas, makes to sample Tail gas is returned to as early as possible in sampling equipment 1, keeps the flue gas balance in sampling equipment 1.

Specifically, the sampling equipment 1 extracts test flue gas, sampling by sampling pump when carrying out positive pressure detection flue gas Probe 2 protrudes into test flue gas, and test flue gas is transferred in detecting instrument 4 by sampling pipe 3 and is detected；When progress negative pressure When detecting flue gas, 4 rear end of detecting instrument connects upper tail gas and leads back pipe 5, and sampling tail gas is made to lead back pipe 5 from detecting instrument 4 through tail gas It returns in sampling equipment, keeps the big negative pressure in sampling equipment 1.

The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not It is confined to this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in Change or replacement, should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should be with Subject to the scope of protection of the claims.

Claims

1. a kind of balanced type environmental protection sampler can carry out positive pressure detection flue gas and detection of negative pressure flue gas, it is characterised in that: including Sampling equipment (1), sampling probe (2), sampling pipe (3), detecting instrument (4) and tail gas lead back pipe (5), detect cigarette when carrying out positive pressure When gas, the sampling equipment (1) extracts test flue gas by sampling pump, and sampling probe (2) protrudes into test flue gas, will test cigarette Gas is transferred in detecting instrument (4) by sampling pipe (3) and is detected；When carrying out detection of negative pressure flue gas, after detecting instrument (4) End connection tail gas is led back pipe (5), and the exhaust port (7) that the tail gas leads back pipe (5) is connected in sampling equipment (1).

2. a kind of balanced type environmental protection sampler according to claim 1, it is characterised in that: on the detecting instrument (4) Pipe socket is led back equipped with tail gas, leads back pipe (5) access convenient for tail gas.

3. a kind of balanced type environmental protection sampler according to claim 1, it is characterised in that: the detecting instrument (4) Measurement range is -5000Pa -+0.1MPa.

4. a kind of balanced type environmental protection sampler according to claim 1, it is characterised in that: the tail gas leads back pipe (5) Length is 100-500mm longer than sampling pipe (3) length.