CN220271247U

CN220271247U - Three-way synchronous sampling full-automatic gas sampler

Info

Publication number: CN220271247U
Application number: CN202321759013.8U
Authority: CN
Inventors: 吴火平; 李其淦
Original assignee: Taitong Technology Guangzhou Co ltd
Current assignee: Taitong Technology Guangzhou Co ltd
Priority date: 2023-07-06
Filing date: 2023-07-06
Publication date: 2023-12-29
Anticipated expiration: 2033-07-06

Abstract

The utility model discloses a full-automatic gas sampler for three-way synchronous sampling, which comprises a six-way valve, a ten-way valve, a twelve-way valve III, a twelve-way valve II and a twelve-way valve I, wherein a No. 5 interface of the six-way valve is mutually communicated with a No. 2 interface of the ten-way valve, the twelve-way valve III, the twelve-way valve II and the twelve-way valve I are respectively connected with a PEEK four-way interface module through a solenoid valve III, a solenoid valve II and a solenoid valve I, the other communication interface of the PEEK four-way interface module is communicated with a No. 3 interface of the ten-way valve, the PEEK four-way interface module is connected with a flowmeter through a solenoid valve IV, and the flowmeter controls N2 input through a pressure stabilizing valve. According to the utility model, one device is combined through multiple valves to complete various functions, the independent valve body is limited in self-realized functions, and three-dimensional and changeable application is achieved through cooperative work after scientific combination, so that powerful combined functions are realized, and the ingenious application of the multiple valve combination solves various pain points of cost, efficiency, faults and energy consumption.

Description

Three-way synchronous sampling full-automatic gas sampler

Technical Field

The utility model relates to the technical field of full-automatic gas sample injectors, in particular to a three-way synchronous sample injection full-automatic gas sample injector.

Background

In order to execute the atmospheric pollution control action plan and realize the aim of carbon neutralization and carbon peak reaching in the future, a series of related environment detection and monitoring standards are successively exported by the country. The method is characterized in that a gaseous sample is directly injected into a gas chromatograph for qualitative and quantitative analysis after being collected, and the gaseous sample is a detection means commonly used in the field of environmental detection and is used for analyzing the content of volatile organic compounds in ambient air or waste gas of a fixed pollution source. The method is characterized in that the original national standard of ' HJ604-2017 direct sample injection-gas chromatography for measuring total hydrocarbons in the ambient air, methane and non-methane, and ' HJ38-2017 fixed pollution source waste gas total hydrocarbons, methane and non-methane total hydrocarbons ' are two important detection standards. In 2022, the national ecological environment department has set higher requirements on the detection of the waste gas of the fixed pollution source, and besides the detection of total hydrocarbons, methane and non-methane total hydrocarbons, the sample has to be detected for the content of benzene series, and the latest standard of gas bag sampling/direct sample injection gas chromatography for the detection of benzene series of the waste gas of the fixed pollution source, HJ1261-2022, is issued, for example, two sets of sample injection equipment are required to be purchased along with the existing sample injection equipment in the current market or the analysis of the sample is realized through the disassembly of the equipment. The following problems exist with the prior art:

if the above three standard sample injection requirements are required to be met at the same time, two devices need to be purchased by a user unit, the input cost is too high, if only one existing device is purchased to meet the above three standard sample injection requirements, the internal hardware of the device needs to be changed and the device needs to be disassembled and moved when the device is switched between different methods, the mode not only seriously affects the working efficiency, but also causes the damage of the device in the disassembly process, so that a full-automatic gas injector with three-way synchronous sample injection is needed to solve the technical problems.

Disclosure of Invention

The utility model aims to provide a three-way synchronous sampling full-automatic gas sampler so as to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a full-automatic gas injector with three paths of synchronous injection comprises a six-way valve, a ten-way valve, a twelve-way valve III, a twelve-way valve II and a twelve-way valve I;

the six-way valve is provided with six interfaces of No. 1, no. 2, no. 3, no. 4, no. 5 and No. 6;

the ten-way valve is provided with ten interfaces of No. 1, no. 2, no. 3, no. 4, no. 5, no. 6, no. 7, no. 8, no. 9 and No. 10;

the twelve-way valve III, the twelve-way valve II and the ten-way valve I are respectively provided with twelve pipeline interfaces of No. 1, no. 2, no. 3, no. 4, no. 5, no. 6, no. 7, no. 8, no. 9, no. 10, no. 11 and No. 12;

the interface No. 5 of six-way valve is linked together with the interface No. 2 of ten-way valve, and twelve-way valve three, twelve-way valve two and twelve-way valve one are connected with PEEK cross interface module through solenoid valve three, solenoid valve two, solenoid valve one respectively, and another interface of PEEK cross interface module is linked together with the interface No. 3 of ten-way valve, PEEK cross interface module is connected with the flowmeter through solenoid valve four, and the flowmeter passes through steady voltage valve control N2 input.

As a further scheme of the utility model: the third twelve-way valve, the second twelve-way valve and the first twelve-way valve are respectively connected with a sample air bag and a stepping motor controller.

As a further scheme of the utility model: the port 1 and the port 4 of the six-way valve are communicated through a dosing ring I.

As a further scheme of the utility model: and the No. 2 interface of the six-way valve is connected with a carrier gas output I, the No. 3 interface of the six-way valve is connected with a carrier gas input I, and the No. 6 interface of the six-way valve is communicated with the discharge port through the sampling pump and the flow controller.

As a further scheme of the utility model: the port 1 and the port 8 of the ten-way valve are communicated through a quantitative ring.

As a further scheme of the utility model: and the port No. 4 and the port No. 7 of the ten-way valve are communicated in three phases through a quantitative ring.

As still further aspects of the utility model: the valve is characterized in that a No. 5 interface of the ten-way valve is connected with a carrier gas input III, a No. 6 interface of the ten-way valve is connected with a carrier gas output III, a No. 9 interface of the ten-way valve is connected with a carrier gas input II, and a No. 10 interface of the ten-way valve is connected with a carrier gas output II.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, one device is combined through multiple valves to complete various functions, the independent valve body is limited in self-realized functions, and three-dimensional and changeable application is achieved through cooperative work after scientific combination, so that powerful combined functions are realized, and the ingenious application of the multiple valve combination solves various pain points of cost, efficiency, faults and energy consumption.

1. The working efficiency is high: the sampling gas can be divided into three parts simultaneously, and the three parts enter corresponding chromatographic channels for analysis, and meanwhile, the concentration of total hydrocarbon, methane and benzene series in the sampling gas is analyzed, so that the analysis work of three related standards is not needed to be performed step by step, and the working efficiency is improved by more than one time;

2. the operation mode is flexible: the method can select to sample the total hydrocarbon, methane gas or benzene series respectively and independently, and can also select the simultaneous sample injection analysis of the total hydrocarbon, methane and benzene series so as to meet the requirements of various different users or different scenes;

3. the energy efficiency is lower: while improving efficiency, one set of equipment meets the functions of two sets of equipment, and the energy consumption is about 50% of that of a traditional mode.

Drawings

Fig. 1 is a gas circuit flow chart of a three-way synchronous sampling full-automatic gas sampler.

Fig. 2 is a schematic diagram of the six-way valve sampling state in the three-way synchronous sampling full-automatic gas sampler.

Fig. 3 is a schematic diagram of the six-way valve sampling state in the three-way synchronous sampling full-automatic gas sampler.

Fig. 4 is a schematic diagram of a ten-way valve sampling state in a three-way synchronous sampling full-automatic gas sampler.

Fig. 5 is a schematic diagram of the sample injection state of the ten-way valve in the three-way synchronous sample injection type full-automatic gas injector.

In the figure: the device comprises a 1-six-way valve, a 2-carrier gas output I, a 3-carrier gas input I, a 4-sampling pump and a flow controller, a 5-quantitative ring I, a 6-ten-way valve, a 7-quantitative ring II, a 8-carrier gas output II, a 9-carrier gas input II, a 10-carrier gas input III, a 11-carrier gas output III, a 12-quantitative ring III, a 13-twelve-way valve III, a 14-ten-way valve II, a 15-twelve-way valve I, a 16-sample gas bag, a 17-stepper motor controller, a 18-electromagnetic valve III, a 19-electromagnetic valve II, a 20-electromagnetic valve I, a 21-electromagnetic valve IV, a 22-flowmeter, a 23-pressure stabilizing valve and a 24-PEEK four-way interface module.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, a three-way synchronous sampling full-automatic gas sampler includes a six-way valve 1, a ten-way valve 6, a twelve-way valve three 13, a ten-way valve two 14 and a twelve-way valve one 15.

Specifically, six-way valve 1 is equipped with six interfaces of No. 1, no. 2, no. 3, no. 4, no. 5, no. 6, ten-way valve 6 is equipped with ten interfaces of No. 1, no. 2, no. 3, no. 4, no. 5, no. 6, no. 7, no. 8, no. 9, no. 10, no. 13 of twelve-way valve, no. 14 of twelve-way valve and No. 15 are equipped with twelve pipeline interfaces of No. 1, no. 2, no. 3, no. 4, no. 5, no. 6, no. 7, no. 8, no. 9, no. 10, no. 11, no. 12 respectively, no. 5 interfaces of six-way valve 1 and No. 2 interfaces of ten-way valve 6 are mutually communicated, twelve-way valve No. 13, no. 14 of ten-way valve and No. 15 are connected with four-way interface module 24 through solenoid valve No. 18, solenoid valve No. 19, solenoid valve No. 20 respectively, another interfaces of four-way interface module 24 are linked with No. 3 interfaces of ten-way valve 6 through four-way valve 21, flow meter 22 is connected with flow meter 21, and pressure stabilizing valve 22 is controlled through valve 2.

Preferably, the third twelve-way valve 13, the second twelve-way valve 14 and the first twelve-way valve 15 are respectively connected with a sample air bag 16 and a stepping motor controller 17.

Preferably, the port 1 and the port 4 of the six-way valve 1 are communicated through a quantifying ring 5, the port 2 of the six-way valve 1 is connected with a carrier gas output 2, the port 3 of the six-way valve 1 is connected with a carrier gas input 3, and the port 6 of the six-way valve 1 is communicated with the discharge port through a sampling pump and a flow controller 4.

Preferably, the interface 1 and the interface 8 of the ten-way valve 6 are communicated through a dosing ring II 7, the interface 4 and the interface 7 of the ten-way valve 6 are communicated through a dosing ring III 12, the interface 5 of the ten-way valve 6 is connected with a carrier gas input III 10, the interface 6 of the ten-way valve 6 is connected with a carrier gas output III 11, the interface 9 of the ten-way valve 6 is connected with a carrier gas input II 9, and the interface 10 of the ten-way valve 6 is connected with a carrier gas output II 8.

Specifically: sampling state of the six-way valve 1: the interfaces 1-6, 2-3 and 5-4 are communicated, and the six-way valve 1 is in a sample injection state: the interfaces 1-2, 3-4 and 5-6 are communicated, and the ten-way valve 6 is in a sampling state: the interfaces 1-2, 3-4, 5-6, 7-8 and 9-10 are communicated, and the ten-way valve 6 is in a sample injection state: the interfaces 1-10, 2-3, 4-5, 6-7 and 8-9 are communicated.

Working principle:

a tenth two-way valve: the principle of the valve is that the common end needs the rotation angle switching of the valve to realize the communication between the common end and the air passages of 12 holes, the twelve-way switching valve is taken as an example in the application, the selection valves of 6, 10, 12, 16 and 24 bits can also be used, the solenoid valve I20, the solenoid valve II 19, the solenoid valve III 18 and the solenoid valve IV 21 are two-way electric switch valves, the six-way valve 1 is used for the sampling and sample feeding switching of the channel I, the ten-way valve 6 is used for the sampling and sample feeding switching of the channel II and the channel III, because methane and total hydrocarbon are required to be analyzed simultaneously, the concentration of the total hydrocarbon is reduced by methane, the non-methane total hydrocarbon (NMHC) value required in the standard can be obtained, and the independent sampling of the two six-way valves can be also be sampled, so that the function of simultaneous sample feeding is realized.

The sample air bag 16 (injector) is arranged on the full-automatic gas injector frame, 36 sample interfaces are provided in total, 1-12 is positioned on the 1-12 pipeline interface of the first 15 of the second two-way valve, 13-24 is positioned on the 1-12 pipeline interface of the second 14 of the second two-way valve, 25-36 is positioned on the 1-12 pipeline interface of the third 13 of the second two-way valve, the stepping motor is controlled, 17 is used for switching the rotating positions of the first 15 of the second two-way valve and the third 13 of the second twelve-way valve, and the first 20 of the second 19 of the electromagnetic valve and the third 18 of the electromagnetic valve are matched to be opened and closed, so that the 1-36 sample is guided into the sampling flow path.

Sample gas flows through the PEEK four-way interface module 24 from the No. 3 interface of the ten-way valve 6, the No. 4 interface, through the third quantitative ring 12, the No. 7 interface of the ten-way valve 6, the No. 8 interface, through the second quantitative ring 7, the No. 1 interface of the ten-way valve 6, the No. 2 interface, the flow through the No. 5 interface of the six-way valve 1, the No. 4 interface, through the first quantitative ring 5, the No. 1 interface of the six-way valve 1, the No. 6 interface, the sampling flow and time are controlled through the sampling pump and the flow controller 4, and the sample gas is filled with the third quantitative ring 12, the second quantitative ring 7 and the first quantitative ring 5.

After the sample is filled in the quantitative ring, the full-automatic gas injector controls the six-way valve 1 and the ten-way valve 6 to be switched into a sample injection mode, as shown in the figure, the internal gas path is changed, the carrier gas is input into a port 3 through a port 3 of the six-way valve 1, a port 4 is output, the sample is input through a port 1 of the quantitative ring 5 and a port 2 of the six-way valve 1, and the sample in the quantitative ring 5 is led into a channel one for chromatographic analysis through a carrier gas output pipeline 2; meanwhile, the carrier gas is input into the second port 9 through the port 9 of the ten-way valve 6, is output from the port 8, is input through the port 1 of the ten-way valve 6 and is output from the port 10, and the sample in the quantitative ring 7 is led into the second chromatograph of the channel for analysis through the carrier gas output pipeline II 8; meanwhile, the carrier gas is input into the third 10 through the interface No. 5 of the ten-way valve 6, is output from the interface No. 4, is input through the interface No. 7 of the ten-way valve 6 and is output from the interface No. 6, and the sample in the quantitative ring III 12 is guided into the channel three chromatograph for analysis through the carrier gas output third 11 pipeline.

After the sample injection time is finished, the six-way valve 1 and the ten-way valve 6 are restored to a sampling gas path state, N2 opens a sampling pipeline for flushing three sample fixing rings through the pressure stabilizing valve 23, the flowmeter 22 and the electromagnetic valve four 21, and the full-automatic gas injector controls the stepping motor controller 17 to switch to the subsequent sample position analysis.

The full-automatic gas injector can perform single-way sample injection of sample gas by setting parameters and switching sample injection of a single six-way valve 1 or a ten-way valve 6 during sample injection.

What needs to be specifically stated is: according to the utility model, one device is realized through multi-valve combination to complete a plurality of different functions, the independent valve body is limited in self-realized functions, and three-dimensional and changeable application is realized through cooperative work after scientific combination, so that the combined powerful function is realized, the ingenious application of the multi-valve combination solves the problems of cost, efficiency, faults and energy consumption, and the working efficiency is high: the method can divide the sampled gas into three parts simultaneously, enter corresponding chromatographic channels for analysis, simultaneously analyze the concentration of total hydrocarbon, methane and benzene series in the sampled gas, and the analysis work of three related standards is not needed to be carried out step by step, so that the working efficiency is improved by more than one time, and the operation mode is flexible: the method can select to sample the total hydrocarbon, methane gas or benzene series respectively and independently, and can also select the simultaneous sample injection analysis of the total hydrocarbon, methane and benzene series so as to meet the requirements of various different users or different scenes, and has lower energy efficiency: while improving efficiency, one set of equipment meets the functions of two sets of equipment, and the energy consumption is about 50% of that of a traditional mode.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. The utility model provides a full-automatic gas injector of three routes synchronous sampling, includes six-way valve (1), ten-way valve (6), twelve-way valve three (13), twelve-way valve two (14) and twelve-way valve one (15), its characterized in that:

the six-way valve (1) is provided with six interfaces of No. 1, no. 2, no. 3, no. 4, no. 5 and No. 6;

the ten-way valve (6) is provided with ten interfaces of No. 1, no. 2, no. 3, no. 4, no. 5, no. 6, no. 7, no. 8, no. 9 and No. 10;

the twelve-way valve III (13), the twelve-way valve II (14) and the twelve-way valve I (15) are respectively provided with twelve pipeline interfaces of No. 1, no. 2, no. 3, no. 4, no. 5, no. 6, no. 7, no. 8, no. 9, no. 10, no. 11 and No. 12;

the interface No. 5 of six-way valve (1) and the interface No. 2 of ten-way valve (6) are mutually communicated, twelve-way valve three (13), twelve-way valve two (14) and twelve-way valve one (15) are respectively connected with PEEK four-way interface module (24) through solenoid valve three (18), solenoid valve two (19), solenoid valve one (20), another interface of PEEK four-way interface module (24) is communicated with the interface No. 3 of ten-way valve (6), PEEK four-way interface module (24) is connected with flowmeter (22) through solenoid valve four (21), flowmeter (22) are through steady voltage valve (23) control N2 input.

2. The three-way synchronous sampling full-automatic gas sampler according to claim 1 is characterized in that the three-way valve (13), the two-way valve (14) and the one-way valve (15) are respectively connected with a sample gas bag (16) and a stepping motor controller (17).

3. The three-way synchronous sampling full-automatic gas sampler according to claim 1 is characterized in that the port 1 and the port 4 of the six-way valve (1) are communicated through a quantitative ring one (5).

4. The three-way synchronous sampling full-automatic gas sampler according to claim 3, wherein the No. 2 interface of the six-way valve (1) is connected with a carrier gas output I (2), the No. 3 interface of the six-way valve (1) is connected with a carrier gas input I (3), and the No. 6 interface of the six-way valve (1) is communicated with the discharge port through a sampling pump and a flow controller (4).

5. The three-way synchronous sampling full-automatic gas sampler according to claim 1 is characterized in that the interface No. 1 and the interface No. 8 of the ten-way valve (6) are communicated through a quantitative loop II (7).

6. The three-way synchronous sampling full-automatic gas sampler according to claim 5 is characterized in that the interface No. 4 and the interface No. 7 of the ten-way valve (6) are communicated through a quantitative ring III (12).

7. The three-way synchronous sampling full-automatic gas sampler according to claim 6 is characterized in that a carrier gas input three (10) is connected with a No. 5 interface of the ten-way valve (6), a carrier gas output three (11) is connected with a No. 6 interface of the ten-way valve (6), a carrier gas input two (9) is connected with a No. 9 interface of the ten-way valve (6), and a carrier gas output two (8) is connected with a No. 10 interface of the ten-way valve (6).