CN203083908U - Air cleanliness detection device - Google Patents
Air cleanliness detection device Download PDFInfo
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- CN203083908U CN203083908U CN 201220708828 CN201220708828U CN203083908U CN 203083908 U CN203083908 U CN 203083908U CN 201220708828 CN201220708828 CN 201220708828 CN 201220708828 U CN201220708828 U CN 201220708828U CN 203083908 U CN203083908 U CN 203083908U
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Abstract
The utility model provides an air cleanliness detection device. The air cleanliness detection device comprises a hollow box body, and is characterized in that an air inlet is formed in the box body and connected with a high-pressure air inlet pipe, and the box body is further connected with an air outlet pipe and a dust particle counter. According to the air cleanliness detection device, air in the air inlet pipe enters in the closed box body after being decompressed by a pressure-reducing valve, the dust particle counter performs sampling directly in the box body, so that the influence on core components caused by high-pressure air can be avoided, the measuring effect is improved and the service lives of the components are prolonged, and the air cleanliness detection device also has the advantages of being simple in structure, convenient to operate, low in cost, and the like.
Description
Technical field
The utility model relates to a kind of air purity pick-up unit, especially utilizes the air purity pick-up unit of airborne particle counter.
Background technology
Special occasions such as pharmaceutical factory are very high to the requirement of air purity, therefore utilizing the pure air after air cleaning unit purifies need often carry out the cleanliness factor detection.Airborne particle counter is a kind of common air purity pick-up unit, and it is used for measuring dust particle number and size distribution in the clean environment unit volume.Wherein fast because of laser airborne particle counter test speed, DYNAMIC DISTRIBUTION is wide, be not subjected to the advantage of each side such as man's activity, and becomes the main product of airborne particle counter in recent years.The a lot of core components of laser airborne particle counter are all very responsive, need higher working environment, especially can not directly detect gases at high pressure, and in clean wind system, blast in the ajutage is higher usually, and the air purity of how measuring wherein becomes a difficult problem.At present, the equipment of external maturation is arranged on the market, can directly measure ajutage, its price is very high.
The utility model content
At above-mentioned defective of the prior art, the utility model provide a kind of simple in structure, cost is low, the life-span is long and measure air purity pick-up unit accurately.
The utility model provides a kind of air purity pick-up unit, and the casing that it comprises hollow is characterized in that: described casing is provided with air intake opening, and described air intake opening connects high-pressure pipe, and described casing also connects gas outlet and airborne particle counter.
Preferably, also be provided with flowmeter on the described draft tube.
Preferably, be provided with the dividing plate that cuts off described air intake opening and airborne particle counter in the described casing, described dividing plate is provided with the air dispelling hole of several perforations.
Preferably, described casing is a cuboid.
Preferably, described air intake opening connects high-pressure pipe by reduction valve.
After air purity pick-up unit of the present utility model reduces pressure to the blast in the blast pipe by reduction valve, send in the airtight casing, airborne particle counter is directly taken a sample in casing, thereby avoided its core component influenced by gases at high pressure, improved the serviceable life of measurement effect and parts, it also has simple in structure, easy to operate, low cost and other advantages.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the structural representation of the utility model embodiment.
Embodiment
In order to make those skilled in the art person understand the utility model scheme better, and above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, the utility model is described in further detail below in conjunction with embodiment and embodiment accompanying drawing.
As shown in Figure 1, a kind of air purity pick-up unit of the present utility model comprises the cuboid casing 10 of hollow, and the casing 10 of other shapes also can certainly.Casing 10 is provided with air intake opening (not shown), and air intake opening connects the high-pressure pipe 20 of air cleaning system (not shown), is in series with flowmeter 22 and reduction valve 24 on the draft tube 20 successively.Casing 10 also connects gas outlet 30 and airborne particle counter 40, is provided with the dividing plate 12 that cuts off air intake opening and airborne particle counter 40 in the casing 10, and dividing plate 12 is provided with the air dispelling hole (not shown) of several perforations.
After the clean air of air cleaning system reduces pressure through reduction valve 24 like this, evenly send in the airtight casing 10 from air dispelling hole, and discharge,, therefore can not cause gaseous contamination because this process is unidirectional and airtight through gas outlet 30.Offer opening (not shown) in the casing 10, airborne particle counter 40 is directly taken a sample in casing 10 through this opening, carries out dust particle.The metering result of airborne particle counter 40 and the reading of flowmeter 22 convert by the simple mathematical formula, can draw the dust particle quantity of the unit volume in the pure air that draft tube 20 sends into, that is its air purity.
The above; it only is embodiment of the present utility model; protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain that claim was defined.
Claims (5)
1. air purity pick-up unit, the casing that it comprises hollow is characterized in that: described casing is provided with air intake opening, and described air intake opening connects high-pressure pipe, and described casing also connects gas outlet and airborne particle counter.
2. air purity pick-up unit according to claim 1 is characterized in that: also be provided with flowmeter on the described draft tube.
3. according to claim 1 or 2 one of them described air purity pick-up unit, it is characterized in that: be provided with the dividing plate that cuts off described air intake opening and airborne particle counter in the described casing, described dividing plate is provided with the air dispelling hole of several perforations.
4. air purity pick-up unit according to claim 1 is characterized in that: described casing is a cuboid.
5. air purity pick-up unit according to claim 1 is characterized in that: described air intake opening connects high-pressure pipe by reduction valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220708828 CN203083908U (en) | 2012-12-20 | 2012-12-20 | Air cleanliness detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220708828 CN203083908U (en) | 2012-12-20 | 2012-12-20 | Air cleanliness detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203083908U true CN203083908U (en) | 2013-07-24 |
Family
ID=48829733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220708828 Expired - Lifetime CN203083908U (en) | 2012-12-20 | 2012-12-20 | Air cleanliness detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203083908U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106841010A (en) * | 2016-12-30 | 2017-06-13 | 陕西彩虹电子玻璃有限公司 | Cleanliness factor measurement apparatus and method in a kind of cover-plate glass annealing of substrates stove |
| CN110361288A (en) * | 2019-07-12 | 2019-10-22 | 中国航发沈阳发动机研究所 | A kind of aircraft engine parts surface cleanness degree determination method and system |
| CN110514483A (en) * | 2019-08-13 | 2019-11-29 | 湖北华强科技有限责任公司 | A kind of fast appraisement method of Compressed Air degree |
| CN110940562A (en) * | 2019-12-05 | 2020-03-31 | 武汉羽芒智能科技有限公司 | Gas collection body sampling and cleanliness detection instrument integrated with each other |
-
2012
- 2012-12-20 CN CN 201220708828 patent/CN203083908U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106841010A (en) * | 2016-12-30 | 2017-06-13 | 陕西彩虹电子玻璃有限公司 | Cleanliness factor measurement apparatus and method in a kind of cover-plate glass annealing of substrates stove |
| CN110361288A (en) * | 2019-07-12 | 2019-10-22 | 中国航发沈阳发动机研究所 | A kind of aircraft engine parts surface cleanness degree determination method and system |
| CN110361288B (en) * | 2019-07-12 | 2022-07-15 | 中国航发沈阳发动机研究所 | Method and system for judging surface cleanliness of aero-engine part |
| CN110514483A (en) * | 2019-08-13 | 2019-11-29 | 湖北华强科技有限责任公司 | A kind of fast appraisement method of Compressed Air degree |
| CN110940562A (en) * | 2019-12-05 | 2020-03-31 | 武汉羽芒智能科技有限公司 | Gas collection body sampling and cleanliness detection instrument integrated with each other |
| CN110940562B (en) * | 2019-12-05 | 2020-11-27 | 义乌市根号三科技有限公司 | Gas collection body sampling and cleanliness detection instrument integrated with each other |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130724 |
|
| CX01 | Expiry of patent term |