CN106924902A - A kind of hollow metafiltration poison unit - Google Patents
A kind of hollow metafiltration poison unit Download PDFInfo
- Publication number
- CN106924902A CN106924902A CN201710214526.3A CN201710214526A CN106924902A CN 106924902 A CN106924902 A CN 106924902A CN 201710214526 A CN201710214526 A CN 201710214526A CN 106924902 A CN106924902 A CN 106924902A
- Authority
- CN
- China
- Prior art keywords
- filter
- layer
- malicious
- poison
- metafiltration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 231100000614 poison Toxicity 0.000 title claims abstract description 32
- 239000002574 poison Substances 0.000 title claims abstract description 29
- 238000010276 construction Methods 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 239000000523 sample Substances 0.000 claims description 2
- 239000002341 toxic gas Substances 0.000 abstract description 12
- 230000035945 sensitivity Effects 0.000 abstract description 4
- 230000007096 poisonous effect Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 238000001914 filtration Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001473 noxious effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000001147 anti-toxic effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B7/00—Respiratory apparatus
- A62B7/10—Respiratory apparatus with filter elements
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B9/00—Component parts for respiratory or breathing apparatus
- A62B9/006—Indicators or warning devices, e.g. of low pressure, contamination
Landscapes
- Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
Abstract
A kind of hollow metafiltration poison unit, including the malicious unit housings of filter, are provided with the malicious layer of main filter and the malicious layer of secondary filter, main filter poison layer and the longitudinally spaced certain distance of the secondary malicious layer of filter in the malicious unit housings of filter, are voided layer between the malicious layer of two filters.The hollow metafiltration poison unit that the present invention is provided, by the frame mode connected using the malicious layer of major and minor filter, when the malicious layer failure of main filter, during alarm signal an alert, the auxiliary malicious layer of filter is still to can normal work, play a part of to filter poison gas, extend safety time, be that user wins more times and withdraws poisonous scene；The present invention filters the structure type that malicious layer is connected by using major and minor, it is possible to decrease the requirement to the malicious Failure Alarm transducer sensitivity of filter, so as to reach the purpose of reduction production cost.
Description
Technical field
The present invention relates to filtering type respiratory protection technical field, and in particular to a kind of filter poison with hollow Rotating fields is single
Unit.
Background technology
At present, domestic and international canister Failure Alarm sensor（Or indicator）Installation site is respectively positioned on after canister, directly
Connect in the breathing space of user.This arrangement will cause the canister in sensor alarm to fail, and penetrate
The noxious material of canister is directly absorbed by user.Now, user has had little time to withdraw scene, and noxious material directly endangers
The life of user with it is healthy and safe, the device loses the practical significance of Failure Alarm.Chinese patent " has the mistake of Indication of Losing Efficacy
The anti-toxic gas breathing mask of filter formula "（Publication number CN1281738A）, a kind of " the filtering type breathing malicious Failure Alarm of breathing mask filter
Device "（Publication number CN202105346U）, " the electronic breathing mask of early warning type "（Publication number CN204864600U）, alarm is passed
After sensor is installed on canister, in the breathing space of user.Know from data disclosed in foreign countries, external canister failure
The installation site of alarm sensor is also adopted by same layout.It is indicated above that domestic and international existing canister failure alarm device
Unsurmountable " belated action " formula defect is there is from principle, obvious harm will be produced to user in use.
It is to win more times to user to withdraw poisonous scene, another research direction both domestic and external is to improve sensing
The sensitivity of device, its principle is detected and sends alarm signal in time before reaching secure threshold using poison gas concentration, and extension makes
User is caused " the one section of safety time " before substantial damage by poison gas, in order to withdraw hazardous area, but improves sensor
Sensitivity difficulty it is larger, up to the present do not make substantial breakthroughs yet.
The content of the invention
The technical problem to be solved in the present invention is that currently a popular canister Failure Alarm layout structure is improved, and is carried
The composite filter poison structure that malicious body is composed in series is filtered by two pieces for a kind of, safe canister Failure Alarm mould is built from principle
Formula, to ensure that during sensor alarm, filtration system is still safe and effective, ensures that user has time enough to withdraw contamination scene,
Fundamentally protection user life with it is healthy and safe.
The object of the present invention is achieved like this：A kind of hollow metafiltration poison unit, including the malicious unit housings of filter, it is single in filter poison
The malicious layer of main filter and the malicious layer of secondary filter, main filter poison layer and the longitudinally spaced certain distance of the secondary malicious layer of filter, the malicious layer of two filters are provided with first housing
Between be voided layer.
The inner space of voided layer sets the divider of the malicious layer of the main filter of connection and the malicious layer of secondary filter along the cross section of airflow direction,
Divider upstream and downstream direction is connected with the malicious layer support frame of major and minor filter respectively.
Main filter poison layer and the malicious layer of secondary filter are the monolithic construction of fixation or the modular structure of reassembling type.
Early warning failure sensor is internally provided with voided layer, sensor is arranged on the side wall mounting seat of the malicious unit housings of filter
On；Or the cavity connected with voided layer is set in the malicious unit housings side of filter, plug-in sensor probe is arranged in the cavity.
The hollow metafiltration poison unit that the present invention is provided, by the frame mode connected using the malicious layer of major and minor filter, when main filter poison
During layer failure, auxiliary filter poison layer be still to can normal work, play a part of to filter poison gas, extend safety time, be that user wins
More times must withdraw poisonous scene；Structure type by being connected using the malicious layer of major and minor filter of the invention, it is possible to decrease to filter
The requirement of malicious Failure Alarm transducer sensitivity, the purpose of production cost is reduced so as to reach.
The present invention has installed divider additional, and divider can reinforce canister structure, not influence gas-flow resistance.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is structural representation of the invention.
Structural representation when Fig. 2 is present invention use external hanging type sensor.
In figure, 1, the main malicious layer of filter, 2, voided layer, 3, the malicious layer of secondary filter, 4, the malicious layer support frame of filter, 5, sensor, 6, sensing
Device wire, 7, sensor installation seat, 8, canister housing, 9, particulate filter, 10, plug-in sensor, 11, sensor cavity.
Specific embodiment
The malicious unit of filter provided by the present invention, including the malicious unit housings of filter, are provided with main filter poison in the malicious unit housings 8 of filter
Layer 1 and the malicious layer 3 of secondary filter, the main malicious layer 1 of filter and the longitudinally spaced certain distance of the secondary malicious layer 3 of filter, are voided layer 2 between the malicious layer of two filters.
This filter poison structure is applied to canister or the malicious box of filter.
Two metafiltration poison layer, voided layer, sensor can both make fixed monolithic construction, may be alternatively configured removable module
Formula structure.
Wherein, malicious layer is filtered：The malicious layer of filter is made up of the filter poison layer of two-layer independence, and malicious layer 1 is filtered based on the filter poison layer of updrift side
（See Fig. 1）, the filter poison layer of downstream direction is the malicious layer 3 of secondary filter.According to requirements, the main malicious layer 1 of filter and the malicious diameter of layer 3 of secondary filter can be with
Unanimously, also can be inconsistent.
Voided layer：Voided layer 2 is located between the malicious layer 1 of main filter and the malicious layer 3 of secondary filter.In the settable separation in the cross section of voided layer 2
Bar, divider upstream and downstream direction is connected with the malicious layer support frame 4 of major and minor filter respectively.
Sensor：Sensor 5 in voided layer 2 is arranged on the side wall of the malicious unit of filter.Sensor 5 and its signal conductor 6
Do not contacted with the malicious layer of major and minor filter, on filtering the sealing of malicious layer without influence.
One sensor can be installed on the side wall of canister, multiple different types of sensors or mistake can be also installed
Effect indicator, to improve the flexibility and reliability of detection.
Mounting means of the sensor on the wall of side both can be using mode be fixedly connected, also can be using dismountable flexible connection
Mode.Can be used for multiple times on different canisters using the sensor of movable connection method, reduce use cost.But pass
When sensor uses movable connection method, the sealing of its connection is not fixedly connected mode reliability.
Derived structure：Sensor external hanging type structure（Or gas sampler structure）.
Layout to basic structure is slightly adjusted, and forms sensor external hanging type structure（Or gas sampler structure）, its
Operation principle is identical with basic structure.
Sensor is directly installed in voided layer, to stop the flowing of gas, increases gas-flow resistance.Sensor is avoided to cause
Resistance rises, and sensor is arranged on the periphery of voided layer gas channel.Structural representation such as Fig. 2.It is in filter in topology layout
The side of malicious unit housings 8 sets the cavity 11 connected with voided layer, and the plug-in sensor 10 of early warning failure is arranged on into cavity 11
It is interior.The gas of voided layer 2 diffuses to cavity 11 by passage, and 11 plug-in sensor 10 is penetrated it is possible thereby to detect in cavity
The poison gas that the main malicious layer 1 of filter enters in voided layer 2.Cavity 11 can be using mode be fixedly connected, also with the side of canister housing 8
Dismountable movable connection method can be used.
The present invention either basic structure or derived structure, be substantially after the main filter poison layer 1 of updrift side fails,
Sensor 5 or plug-in sensor 10 send early warning failure, and now, secondary positioned at downstream direction filters malicious layer 3 for user provides peace
Full departure time or the security protection time of replacing canister.
Operation principle of the invention is as follows：
After the main filter poison layer 1 of the malicious unit of filter fails, the poison gas for penetrating the malicious layer of main filter enters voided layer 2.Due to the pair filter at rear
There is resistance in 3 layers of poison, the poison gas in voided layer 2 will not permeate to the malicious layer 3 of pair filter immediately, but not have resistant voided layer 2
Spread apart and, poison gas reaches Failure Alarm sensor 5 or the surface of plug-in sensor 10 first, so as to be timely detected discovery.When
After poison gas concentration exceedes Failure Alarm sensor alarm threshold value in voided layer 2, alarm signal an alert points out user to remove
From scene.Start this moment, the poison gas downstream of voided layer 2 penetrate the malicious layer 3 of secondary filter also need the regular hour could with use
Person's directly contact.That is, penetrated from alarm signal an alert to poison gas the malicious layer 3 of secondary filter directly with user's directly contact, also
In the presence of one section of safety time, within this time, user can safely withdraw scene or change canister.
Claims (5)
1. a kind of hollow metafiltration poison unit, including the malicious unit housings of filter（8）, it is characterised in that：In the malicious unit housings of filter（8）Inside set
It is equipped with the malicious layer of main filter（1）With the malicious layer of pair filter（3）, the main malicious layer of filter（1）With the malicious layer of pair filter（3）Longitudinally spaced certain distance, two filter poison
It is voided layer between layer（2）.
2. hollow metafiltration poison unit according to claim 1, it is characterised in that：Voided layer（2）Inner space along air-flow
The cross section in direction sets the connection malicious layer of main filter（1）With the malicious layer of pair filter（3）Divider, divider upstream and downstream direction respectively with
The major and minor malicious layer support frame of filter（4）Connection.
3. hollow metafiltration poison unit according to claim 1, it is characterised in that：The main malicious layer of filter（1）With the malicious layer of pair filter（3）For
Fixed monolithic construction or the modular structure of reassembling type.
4. hollow metafiltration poison unit according to claim 1, it is characterised in that：In voided layer（2）It is internally provided with failure
Early warning sensor（5）, sensor（5）Installed in the malicious unit housings of filter（8）Side wall mounting seat（7）On.
5. hollow metafiltration poison unit according to claim 1, it is characterised in that：In the malicious unit housings of filter（8）Side is set
With voided layer（2）The cavity of connection, plug-in sensor probe（10）In the cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710214526.3A CN106924902A (en) | 2017-04-01 | 2017-04-01 | A kind of hollow metafiltration poison unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710214526.3A CN106924902A (en) | 2017-04-01 | 2017-04-01 | A kind of hollow metafiltration poison unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106924902A true CN106924902A (en) | 2017-07-07 |
Family
ID=59426062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710214526.3A Pending CN106924902A (en) | 2017-04-01 | 2017-04-01 | A kind of hollow metafiltration poison unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106924902A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111912546A (en) * | 2020-08-27 | 2020-11-10 | 湖北华强科技有限责任公司 | Air-space temperature-sensing canister life failure indicator and method of use |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1281738A (en) * | 1999-07-21 | 2001-01-31 | 深圳市宝安区卫生防疫站 | Filter-mask with expiry indication for resisting toxic gas |
| US20100153023A1 (en) * | 2008-12-17 | 2010-06-17 | Tyco Electronics Corporation | Systems and methods for determining filter service lives |
| CN104330329A (en) * | 2014-11-07 | 2015-02-04 | 广东好帮手电子科技股份有限公司 | Method and device for monitoring loss degree of filter material of air purifier |
| CN206652096U (en) * | 2017-04-01 | 2017-11-21 | 湖北华强科技有限责任公司 | A kind of voided layer filters malicious unit |
-
2017
- 2017-04-01 CN CN201710214526.3A patent/CN106924902A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1281738A (en) * | 1999-07-21 | 2001-01-31 | 深圳市宝安区卫生防疫站 | Filter-mask with expiry indication for resisting toxic gas |
| US20100153023A1 (en) * | 2008-12-17 | 2010-06-17 | Tyco Electronics Corporation | Systems and methods for determining filter service lives |
| CN104330329A (en) * | 2014-11-07 | 2015-02-04 | 广东好帮手电子科技股份有限公司 | Method and device for monitoring loss degree of filter material of air purifier |
| CN206652096U (en) * | 2017-04-01 | 2017-11-21 | 湖北华强科技有限责任公司 | A kind of voided layer filters malicious unit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111912546A (en) * | 2020-08-27 | 2020-11-10 | 湖北华强科技有限责任公司 | Air-space temperature-sensing canister life failure indicator and method of use |
| CN111912546B (en) * | 2020-08-27 | 2024-12-31 | 湖北华强科技股份有限公司 | Air-layer temperature-sensitive gas filter canister life failure indicator and its use method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: No. 499, Donglin Road, biological industry park, Yichang District, China (Hubei) free trade zone, Yichang City, Hubei Province Applicant after: Hubei Huaqiang Technology Co.,Ltd. Address before: 443003 Hubei province Yichang City Kiln Road No. 45 Applicant before: HUBEI HUAQIANG HIGH-TECH Co.,Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170707 |