CN203422677U - Explosion-proof positive pressure control device - Google Patents
Explosion-proof positive pressure control device Download PDFInfo
- Publication number
- CN203422677U CN203422677U CN201320396592.4U CN201320396592U CN203422677U CN 203422677 U CN203422677 U CN 203422677U CN 201320396592 U CN201320396592 U CN 201320396592U CN 203422677 U CN203422677 U CN 203422677U
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- Prior art keywords
- explosion
- control device
- positive pressure
- proof
- pressure control
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- Expired - Fee Related
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Abstract
The utility model discloses an explosion-proof positive pressure control device. The explosion-proof positive pressure control device includes a cabinet body, wherein an air inlet pipe, an air discharging pipe and a mechanical type gas-pressure meter are disposed on the cabinet body, a diaphragm-type pressure reducing valve is disposes on the air inlet pipe, a pneumatic micro-pressure switch is disposed on the diaphragm-type pressure reducing valve, an adjustable unidirectional throttle valve, an explosion-proof fire-resistant ventilation cap, and an exhaust air buffering area are connected in a serial manner and disposed on the air discharging pipe, and a spark particle shielding plate is disposed in the exhaust air buffering area. With the explosion-proof positive pressure control device, defects in the prior art are overcome, and stable and reliable positive pressure explosion-proof environment is provided under the condition that dangers caused by electrical devices are avoided through using pneumatic elements and mechanical elements only.
Description
Technical field
The utility model relates to a kind of explosion-protection equipment, especially a kind of explosion-proof positive pressure control device.
Background technology
In the place that has explosion risk gas, it is explosion-proof that all electrical equipments all need, so being used in to hazardous area, general electrical equipment all needs to do technological processing for explosion protection feature, but technological processing for explosion protection feature need to be obtained conformity certificate of protection at China Quality Supervision & Testing Center for Explosion-proof Electric Products and could use, professional very strong, authentication formality trouble, very strange concerning general user, authentication difficulty is larger.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of explosion-proof positive pressure control device, can solve the deficiencies in the prior art, the parts of and physical construction pneumatic by whole uses, stopped electrical equipment with dangerous prerequisite under, a reliable and stable positive-pressure explosion-proof environment is provided.
For solving the problems of the technologies described above, technical solution adopted in the utility model is as follows.
A kind of explosion-proof positive pressure control device, structure comprises cabinet, on described cabinet, be provided with draft tube, gas outlet and mechanical type air-pressure gage, in draft tube, be provided with diaphragm type pressure-reducing valve, on diaphragm type pressure-reducing valve, be provided with pneumatic negtive micropressure switch, on gas outlet, series connection is provided with adjustable one-way throttle valve, anti-explosion fire-retardant Ventilated cap and exhaust buffer zone, is provided with spark particulate blockage plate in exhaust buffer zone.
As preferably, on described cabinet, be also provided with magnet-type safety valve.
As preferably, described spark particulate blockage plate is multilayer stainless steel wire web frame.
The beneficial effect that adopts technique scheme to bring is: the utility model is monitored the pressure in cabinet by mechanical type air-pressure gage, pneumatic negtive micropressure switch is controlled diaphragm type pressure-reducing valve and is blown in cabinet, keep the malleation in cabinet, and the explosive material producing in cabinet is discharged from gas outlet.The gas of discharging enters buffer zone after by anti-explosion fire-retardant Ventilated cap and carries out isolation buffer, and spark particulate blockage plate can fall the spark particle filtering in gas, and adjustable one-way throttle valve is used for controlling the gas flow of exhaust.Magnet-type safety valve on cabinet can utilize the air pressure of increase automatically to open when individual cabinet internal gas pressure increases extremely, carries out urgent exhaust step-down, guarantees the safety of cabinet.The utility model is by all using the parts of pneumatic and physical construction, stopped electrical equipment with dangerous prerequisite under, a reliable and stable positive-pressure explosion-proof environment is provided.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of an embodiment of the utility model.
In figure: 1, cabinet; 2, draft tube; 3, gas outlet; 4, diaphragm type pressure-reducing valve; 5, pneumatic negtive micropressure switch; 6, adjustable one-way throttle valve; 7, anti-explosion fire-retardant Ventilated cap; 8, exhaust buffer zone; 9, spark particulate blockage plate; 10, magnet-type safety valve; 11, mechanical type air-pressure gage.
Embodiment
With reference to Fig. 1, structure of the present utility model comprises cabinet 1, on described cabinet 1, be provided with draft tube 2, gas outlet 3 and mechanical type air-pressure gage 11, in draft tube 2, be provided with diaphragm type pressure-reducing valve 4, on diaphragm type pressure-reducing valve 4, be provided with pneumatic negtive micropressure switch 5, on gas outlet 3, series connection is provided with adjustable one-way throttle valve 6, anti-explosion fire-retardant Ventilated cap 7 and exhaust buffer zone 8, is provided with spark particulate blockage plate 9 in exhaust buffer zone 8.
It should be noted that on described cabinet 1 and be also provided with magnet-type safety valve 10.
In addition, described spark particulate blockage plate 9 is multilayer stainless steel wire web frame.
Principle of work of the present utility model is: the utility model is by the pressure in mechanical type air-pressure gage 11 monitoring cabinets 1, pneumatic negtive micropressure switch 5 is controlled diaphragm type pressure-reducing valve 6 to the interior air-supply of cabinet 1, keep the malleation in cabinet 1, and the explosive material of cabinet 1 interior generation is discharged from gas outlet 3.The gas of discharging enters exhaust buffer zone 8 after by anti-explosion fire-retardant Ventilated cap 7 and carries out isolation buffer, and spark particulate blockage plate 9 can fall the spark particle filtering in gas, and adjustable one-way throttle valve 6 is used for controlling the gas flow of exhaust.Magnet-type safety valve 10 on cabinet 1 can utilize the air pressure of increase automatically to open when cabinet 1 internal gas pressure increases extremely, carries out urgent exhaust step-down, guarantees the safety of cabinet 1.The utility model is by all using the parts of pneumatic and physical construction, stopped electrical equipment with dangerous prerequisite under, a reliable and stable positive-pressure explosion-proof environment is provided.
More than show and described ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and instructions, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. an explosion-proof positive pressure control device, structure comprises cabinet (1), it is characterized in that: on described cabinet (1), be provided with draft tube (2), gas outlet (3) and mechanical type air-pressure gage (11), in draft tube (2), be provided with diaphragm type pressure-reducing valve (4), on diaphragm type pressure-reducing valve (4), be provided with pneumatic negtive micropressure switch (5), the upper series connection of gas outlet (3) is provided with adjustable one-way throttle valve (6), anti-explosion fire-retardant Ventilated cap (7) and exhaust buffer zone (8), is provided with spark particulate blockage plate (9) in exhaust buffer zone (8).
2. explosion-proof positive pressure control device according to claim 1, is characterized in that: on described cabinet (1), be also provided with magnet-type safety valve (10).
3. explosion-proof positive pressure control device according to claim 1, is characterized in that: described spark particulate blockage plate (9) is multilayer stainless steel wire web frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320396592.4U CN203422677U (en) | 2013-07-04 | 2013-07-04 | Explosion-proof positive pressure control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320396592.4U CN203422677U (en) | 2013-07-04 | 2013-07-04 | Explosion-proof positive pressure control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203422677U true CN203422677U (en) | 2014-02-05 |
Family
ID=50021771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320396592.4U Expired - Fee Related CN203422677U (en) | 2013-07-04 | 2013-07-04 | Explosion-proof positive pressure control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203422677U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112984379A (en) * | 2021-02-05 | 2021-06-18 | 亿昇(天津)科技有限公司 | Control method based on leakage compensation type positive pressure redundancy safety protection system |
-
2013
- 2013-07-04 CN CN201320396592.4U patent/CN203422677U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112984379A (en) * | 2021-02-05 | 2021-06-18 | 亿昇(天津)科技有限公司 | Control method based on leakage compensation type positive pressure redundancy safety protection system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Shanghai Envisee Information System Co., Ltd. Document name: Notification of Termination of Patent Right |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140205 Termination date: 20140704 |
|
| EXPY | Termination of patent right or utility model |