CN217717186U

CN217717186U - Dilution device with ultrahigh dilution multiple and continuously adjustable flow

Info

Publication number: CN217717186U
Application number: CN202221694390.3U
Authority: CN
Inventors: 樊禄; 袁方; 李汶龙; 蒋昌怀; 赵杨兰; 李家
Original assignee: Sichuan Zhongcebiaowu Technology Co ltd
Current assignee: Sichuan Zhongcebiaowu Technology Co ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2022-11-01
Anticipated expiration: 2032-06-30

Abstract

The utility model discloses a superelevation dilution multiple flow continuously adjustable's diluting device, including standard material input system, dilution material gating and ration system, target material output system, standard material input system will standard gas input dilute material gating and ration system, dilute material gating and ration system with gas input to target material output system, obtain target gas through material output system at last. Can accomplish the effect of the dilution work of superelevation dilution multiple, whole dilution process export flow is adjustable in succession, have more specific work demand, the concentration and the flow of dynamic adjustment target gas, it is stable to keep whole dilution process output, it is long-term effective, ensure the repeatability of result, keep the independence of standard substance gas before the input in the middle of each other, prevent because mutually polluting of using the gas circuit to lead to thoughtlessly, each input channel can independent operation, ensure the reliability of output target gas, reduce experimental error, shorten the required time consumption of middle taking a breath.

Description

Dilution device with ultrahigh dilution multiple and continuously adjustable flow

Technical Field

The utility model relates to an environmental monitoring field, mark gas system field of joining in marriage, high-grade laboratory examination field, petrochemical field, especially a dilution device of super high dilution multiple flow continuously adjustable.

Background

The environmental monitoring department, the standard gas development field and the high-grade laboratory of the petrochemical industry department are required to carry out the contrast experiment and the mutual interference experiment of different gases, and according to the result obtained by the experiment, the contingency result and the theoretical reference are brought to the actual field work. Meanwhile, in the calibration and performance verification of gas analysis instruments, the types of gases participating in comparison experiments are various, the required concentration range is relatively wide, and if the complicated standard substance gas is prepared, the working efficiency of department personnel is undoubtedly greatly influenced. The standard substance gas has higher cost, the effective period is only one year, and if the standard substance gas is specially used for a certain experiment, a large amount of gas is purchased, so that waste is certainly brought.

In order to support the environmental protection standard of 'fixed potential electrolytic method for measuring sulfur dioxide in waste gas of HJ57 fixed pollution source', it is a necessary trend in the industry to provide a dilution device which can resist adsorption and corrosion and has excellent dilution accuracy.

According to the international standard ISO 6145-7 gas analysis dynamic volume method for preparing mixed gas thermal mass flow meter for calibration, a high-precision mass flow controller is selected to control the gas path flow, so that the excellent solution is to ensure the accuracy and stability of the flow of various gases participating in dilution.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's shortcoming, provide a superelevation dilution multiple flow continuously adjustable diluting device.

The purpose of the utility model is realized through the following technical scheme: the standard substance input system comprises standard substances A with different concentrations, standard substances B with different concentrations and diluted substances, the diluted substance gating and quantifying system comprises a substance concentration gating valve A, a substance concentration gating valve B, a mass flow controller A, a mass flow controller B, a mass flow controller C and an input connector C, the standard substances A with different concentrations are communicated with the substance concentration gating valve A, the standard substances B with different concentrations are communicated with the substance concentration gating valve B, the diluted substances are communicated with the input connector C, the substance concentration gating valve A is communicated with the mass flow controller A, the substance concentration gating valve B is communicated with the mass flow controller B, the input connector C is communicated with the mass flow controller C, the target substance output system comprises a mixing output module, a shunting module, a substance output port and an exhaust port, the mass flow controller A, the mass flow controller B and the mass flow controller C are communicated with the mixing output module, the mixing output module is communicated with the shunting module, the substance output port of the shunting module is communicated with the exhaust port, and the exhaust port of the shunting module is provided with an exhaust port.

Furthermore, the standard substances A with different concentrations are communicated with the substance concentration selective valve A through the input joint A.

Furthermore, the standard substances B with different concentrations are communicated with the substance concentration selector valve B through the input connector B.

Further, the concentration of the standard substance A is divided into high concentration, medium concentration and low concentration, and the standard substance A with each concentration is communicated with the substance concentration selective valve A through different input connectors A.

Further, the concentration of the standard substance B is divided into high concentration, medium concentration and low concentration, and the standard substance B with each concentration is communicated with the substance concentration selector valve B through different input connectors B.

Furthermore, the number of the material output ports is three, and the material output ends of the shunting modules are respectively communicated with the three material output ports.

Compared with the prior art, the utility model discloses a following advantage:

1. the utility model discloses a gaseous design scheme of mass flow controller cooperation graded concentration standard substance reaches the effect that can accomplish the dilution work of superelevation dilution multiple, and whole dilution process export flow is adjustable in succession, has more concrete work demand, and the gaseous concentration and the flow of dynamic adjustment target keep whole dilution process output stable, and is effective for a long time, ensures the repeatability of result.

2. The utility model provides an adopt different gaseous output channel that uses difference to carry out the design that dilutes respectively, keep the independence in the middle of each other of standard substance gas before the input, prevent because the mutual pollution that leads to of gas circuit of mixing, each input channel can the independent operation, ensures the reliability of output target gas, reduces experimental error, shortens the middle required time consumption of taking a breath.

Drawings

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

In the figure, 1-standard substance input system, 2-diluted substance gating and quantifying system, 3-target substance output system, 4-standard substance a, 5-standard substance B, 6-diluted substance, 7-input connector a, 8-input connector B, 9-substance concentration selector valve a, 10-substance concentration selector valve B, 11-mass flow controller a, 12-mass flow controller B, 13-input connector C, 14-mass flow controller C, 15-mixing output module, 16-shunt module, 17-substance output port, 18-evacuation port.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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.

As shown in fig. 1, a dilution device with continuously adjustable flow rate by ultrahigh dilution multiple comprises a standard substance input system, a dilution substance gating and quantifying system and a target substance output system, wherein the standard substance input system inputs a standard substance into the dilution substance gating and quantifying system to dynamically adjust target gases with various concentrations, and then the target substances are output through the target substance output system.

In the present embodiment, as shown in fig. 1, the standard substance input system 1 includes standard substances A4 of different concentrations, standard substances B5 of different concentrations, and a diluent substance 6, further, the concentration of the standard substance A4 is divided into a high concentration, a medium concentration, and a low concentration, and the concentration of the standard substance B5 is also divided into a high concentration, a medium concentration, and a low concentration, in the present embodiment, the standard substance A4 is a standard substance gas a, the standard substance B5 is a standard substance gas B, and the diluent substance 6 is a diluent gas, and the standard substance gas a, the standard substance gas B, and the diluent gas are stored by each standard substance cylinder, and a cylinder valve is provided on the top of the standard substance cylinder. In this embodiment, the reference concentrations of the high concentration, the medium concentration and the low concentration are determined by the concentration of the standard substance, and further, the high concentration is the standard substance gas with the concentration 1000 to 10000 times of the target concentration; standard substance gas with medium concentration of 100 to 1000 times of target concentration; and the low concentration is the standard substance gas with the concentration of 1 to 100 times of the target concentration.

In the present embodiment, as shown in fig. 1, the dilute substance gating and quantifying system 2 includes a substance concentration gating valve A9, a substance concentration gating valve B10, a mass flow controller a11, a mass flow controller B12, a mass flow controller C14, and an input connector C13, wherein the different concentrations of the standard substance A4 are communicated with the substance concentration gating valve A9, the different concentrations of the standard substance B5 are communicated with the substance concentration gating valve B10, and the dilute substance 6 is communicated with the input connector C13, in the present embodiment, the substance concentration gating valve A9 and the substance concentration gating valve B10 are silanized, further, the substance concentration gating valve A9 has input ports corresponding to the high concentrations of the standard substance A4, the medium concentrations of the standard substance A4, and the low concentrations of the standard substance A4, and the substance concentration gating valve B10 has input ports corresponding to the high concentrations of the standard substance B5, the medium concentrations of the standard substance B5 and the low concentrations of the standard substance B5, further, the different concentrations of the standard substance A4 are communicated with the substance concentration gating valve A9 through the input connector A7, the different concentrations of the standard substance B5 and the input ports are communicated with the high concentrations of the medium concentrations of the standard substance B8, and the input connectors B8, respectively.

In this embodiment, as shown in fig. 1, the substance concentration gating valve A9 is communicated with the mass flow controller a11, the substance concentration gating valve B10 is communicated with the mass flow controller B12, the input joint C13 is communicated with the mass flow controller C14, and the mass flow controller a11, the mass flow controller B12, and the mass flow controller C14 are all commercially available products, and the mass and flow of the transport gas can be monitored by the mass flow controller.

In this embodiment, as shown in fig. 1, the target substance output system 3 includes a mixing output module 15, a diversion module 16, a substance output port 17, and an evacuation port 18, where the mass flow controllers a11, B12, and C14 are all communicated with the mixing output module 15, so that the standard substance gas a flowing out from the mass flow controller a11 enters the mixing output module 15, the standard substance gas B flowing out from the mass flow controller B12 also enters the mixing output module 15, the diluent gas flowing out from the mass flow controller C14 also enters the mixing output module 15, the mixing output module 15 is communicated with the diversion module 16, the substance output port of the diversion module 16 is communicated with the substance output port 17, the evacuation port 18 is communicated with the evacuation port of the diversion module 16, the diluted gas is discharged through the substance output port 17 by the diversion module 16, and when the diversion module 16 needs to be evacuated, the evacuation port 18 is opened, so as to perform evacuation on the gas in the diversion module 16, and further, the substance output port 17 has three output ports, and the substance output ports of the diversion module 16 are respectively communicated with the substance output port 17.

In this embodiment, all the pipelines and the gas circuit plug connectors are subjected to silanization treatment, so that a series of gases which are difficult to dilute and relate to the fields of alarm verification work, petrochemical industry, environmental monitoring and the like can be diluted, a single bottle of high-concentration standard substance gas is diluted into low-concentration standard substance gas in each stage, and the standard substance purchase types of related use units are reduced.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides an ultrahigh dilution multiple flow continuously adjustable's diluting device which characterized in that: the device comprises a standard substance input system (1), a diluting substance gating and quantifying system (2) and a target substance output system (3), wherein the standard substance input system (1) comprises standard substances A (4) with different concentrations, standard substances B (5) with different concentrations and diluting substances (6), the diluting substance gating and quantifying system (2) comprises a substance concentration gating and metering valve A (9), a substance concentration gating and metering valve B (10), a mass flow controller A (11), a mass flow controller B (12), a mass flow controller C (14) and an input joint C (13), the standard substances A (4) with different concentrations are communicated with the substance concentration gating and metering valve A (9), the standard substances B (5) with different concentrations are communicated with the substance concentration gating and metering valve B (10), the diluting substances (6) are communicated with the input joint C (13), the substance concentration gating and metering valve A (9) is communicated with the mass flow controller A (11), the substance concentration gating and metering valve B (10) is communicated with the mass flow controller B (12), the input joint C (13) is communicated with a mass flow controller C (14), and a target substance output port (16) and a mixing and output module (16), the mass flow controller A (11), the mass flow controller B (12) and the mass flow controller C (14) are all communicated with the mixing output module (15), the mixing output module (15) is communicated with the flow distribution module (16), the material output end of the flow distribution module (16) is communicated with the material output port (17), and the exhaust end of the flow distribution module (16) is communicated with the evacuation port (18).

2. The dilution device with ultrahigh dilution multiple and continuously adjustable flow rate as claimed in claim 1, wherein: the standard substances A (4) with different concentrations are communicated with the substance concentration selector valve A (9) through an input joint A (7).

3. The dilution device with ultrahigh dilution multiple and continuously adjustable flow rate as claimed in claim 1, wherein: the standard substances B (5) with different concentrations are communicated with the substance concentration selector valve B (10) through an input joint B (8).

4. The dilution device with ultrahigh dilution multiple and continuously adjustable flow rate as claimed in claim 1, wherein: the concentration of the standard substance A (4) is divided into high concentration, medium concentration and low concentration, and the standard substance A (4) with each concentration is communicated with the substance concentration selective valve A (9) through different input connectors A (7).

5. The dilution device with ultrahigh dilution multiple and continuously adjustable flow rate as claimed in claim 1, wherein: the concentration of the standard substance B (5) is divided into high concentration, medium concentration and low concentration, and the standard substance B (5) with each concentration is communicated with the substance concentration selective valve B (10) through different input connectors B (8).

6. The dilution device with ultrahigh dilution multiple and continuously adjustable flow rate as claimed in claim 1, wherein: the material output ports (17) are three, and the material output ends of the shunting modules (16) are respectively communicated with the three material output ports (17).