CN204758441U - Gaseous buffer of laser particle dust counter - Google Patents
Gaseous buffer of laser particle dust counter Download PDFInfo
- Publication number
- CN204758441U CN204758441U CN201520496118.8U CN201520496118U CN204758441U CN 204758441 U CN204758441 U CN 204758441U CN 201520496118 U CN201520496118 U CN 201520496118U CN 204758441 U CN204758441 U CN 204758441U
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- CN
- China
- Prior art keywords
- control chip
- seal chamber
- laser particle
- particle dust
- pressure
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Abstract
The utility model relates to a gaseous buffer of laser particle dust counter, including the shell the inside seal chamber that forms of shell seal chamber on be equipped with air inlet and gas outlet, air inlet department be equipped with an air -vent valve seal chamber in be equipped with the pressure gauge, gas outlet department be equipped with flow detection device and flow control valve. After having adopted above -mentioned structure, can realize controlling seal chamber's pressure and air outlet flow, adjust in real time, simple structure, convenient to use saves the resource.
Description
Technical field
The utility model relates to airborne particle counter and produces and manufacture field, especially relates to a kind of gas buffer of laser particle dust counter.
Background technology
Laser dust particle counter is the instrument for measuring airborne and domain size distribution in unit volume in clean environment.Manufacturing enterprise and the scientific research departments such as it can be widely used in for laser dust particle counter, Blood Center, epidemic prevention station, Disease Control and Prevention Center, quality supervision Suo Deng authoritative institution, electron trade, medicament compartment, semiconductor, optics or precision optical machinery processing, plastic cement, spray paint, hospital, environmental protection, inspection institute.Its ultimate principle is that the exploring laser light of optical sensor is received by light activated element and produces pulse signal after dust particle scattering, this pulse signal is output and amplifies, then digital signal processing is carried out, by comparing with standard particle signal, by comparing result with different Parametric Representations out.
Existing laser dust particle counter, in gases at high pressure use, need to adopt gas buffer, and current gas buffer just achieves the goal by carrying out pressure release to air inlet, can not automatically control, need artificial post, waste of manpower, lower efficiency.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of gas buffer that automatically can control the laser particle dust counter of raising the efficiency.
The technical scheme in the invention for solving the technical problem is: a kind of gas buffer of laser particle dust counter, comprise shell, seal chamber is formed in described enclosure, described seal chamber is provided with air intake opening and gas outlet, described air intake opening place is provided with a pressure regulator valve, in described seal chamber, be provided with pressure gauge, described gas outlet place is provided with flow detector and flowrate control valve.
Concrete further, described shell is provided with control chip, and described control chip is connected with pressure regulator valve, pressure gauge, flow detector and flowrate control valve respectively.
Concrete further, the pressure value signal that described pressure gauge detects in seal chamber passes to control chip, control chip judges according to the size arranging force value, be less than and force value control chip is set is failure to actuate, be greater than and force value control chip be set signal transmission is carried out pressure regulation operation to pressure regulator valve; When described flow detector detects that the flow at gas outlet place is excessive, send signal to control chip, control chip control flow check control valve carries out adjust flux operation.
Concrete further, described seal chamber is that transparent material is made.
The beneficial effects of the utility model are: after have employed said structure, and can realize the pressure and the air outlet flow that control seal chamber, adjust in real time, structure is simple, easy to use, saving resource.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1, shell; 2, seal chamber; 3, air intake opening; 4, gas outlet; 5, pressure regulator valve; 6, pressure gauge; 7, control chip; 8, flow monitoring device; 9, flowrate control valve.
Embodiment
Below in conjunction with accompanying drawing, the utility model is explained in detail.
A kind of gas buffer of laser particle dust counter as shown in Figure 1, comprise shell 1, seal chamber 2 is formed in described shell 1 inside, described seal chamber 2 is provided with air intake opening 3 and gas outlet 4, described air intake opening 3 place is provided with a pressure regulator valve 5, in described seal chamber 2, be provided with pressure gauge 6, described gas outlet 4 place is provided with flow detector 8 and flowrate control valve 9; Described shell 1 is provided with control chip 7, and described control chip 7 is connected with pressure regulator valve 5, pressure gauge 6, flow detector 8 and flowrate control valve 9 respectively; Described pressure gauge 6 pressure value signal detected in seal chamber 2 passes to control chip 7, control chip 7 judges according to the size arranging force value, be less than and force value control chip 7 is set is failure to actuate, be greater than and force value control chip 7 be set signal transmission is carried out pressure regulation operation to pressure regulator valve 5; When described flow detector 8 detects that the flow at gas outlet 4 place is excessive, send signal to control chip 7, control chip 7 control flow check control valve 9 carries out adjust flux operation; Described seal chamber 2 is made for transparent material.
By the regulation and control of pressure and the regulation and control of flow in control chip 7 finishing device when using, realize the robotization of regulation and control, do not need artificial post, structure is simple, easy to use.
It is emphasized that: be only preferred embodiment of the present utility model above, not any pro forma restriction is done to the utility model, every above embodiment is done according to technical spirit of the present utility model any simple modification, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (4)
1. the gas buffer of a laser particle dust counter, comprise shell (1), seal chamber (2) is formed in described shell (1) inside, described seal chamber (2) is provided with air intake opening (3) and gas outlet (4), it is characterized in that, described air intake opening (3) place is provided with a pressure regulator valve (5), in described seal chamber (2), be provided with pressure gauge (6), and described gas outlet (4) place is provided with flow detector (8) and flowrate control valve (9).
2. the gas buffer of laser particle dust counter according to claim 1, it is characterized in that, described shell (1) is provided with control chip (7), and described control chip (7) is connected with pressure regulator valve (5), pressure gauge (6), flow detector (8) and flowrate control valve (9) respectively.
3. the gas buffer of laser particle dust counter according to claim 2, it is characterized in that, the pressure value signal that described pressure gauge (6) detects in seal chamber (2) passes to control chip (7), control chip (7) judges according to the size arranging force value, be less than and force value control chip (7) is set is failure to actuate, be greater than and force value control chip (7) be set signal transmission is carried out pressure regulation operation to pressure regulator valve (5); When described flow detector (8) detects that the flow at gas outlet place is excessive, send signal to control chip (7), control chip (7) control flow check control valve (9) carries out adjust flux operation.
4. the gas buffer of laser particle dust counter according to claim 1, is characterized in that, described seal chamber (2) is made for transparent material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520496118.8U CN204758441U (en) | 2015-07-10 | 2015-07-10 | Gaseous buffer of laser particle dust counter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520496118.8U CN204758441U (en) | 2015-07-10 | 2015-07-10 | Gaseous buffer of laser particle dust counter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204758441U true CN204758441U (en) | 2015-11-11 |
Family
ID=54473138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520496118.8U Expired - Fee Related CN204758441U (en) | 2015-07-10 | 2015-07-10 | Gaseous buffer of laser particle dust counter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204758441U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104977232A (en) * | 2015-07-10 | 2015-10-14 | 苏州华达仪器设备有限公司 | Gas buffer apparatus of laser particle dust counter |
-
2015
- 2015-07-10 CN CN201520496118.8U patent/CN204758441U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104977232A (en) * | 2015-07-10 | 2015-10-14 | 苏州华达仪器设备有限公司 | Gas buffer apparatus of laser particle dust counter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151111 Termination date: 20160710 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |