CN201735107U - Novel pneumatic valve - Google Patents
Novel pneumatic valve Download PDFInfo
- Publication number
- CN201735107U CN201735107U CN2010202628506U CN201020262850U CN201735107U CN 201735107 U CN201735107 U CN 201735107U CN 2010202628506 U CN2010202628506 U CN 2010202628506U CN 201020262850 U CN201020262850 U CN 201020262850U CN 201735107 U CN201735107 U CN 201735107U
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- CN
- China
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- valve
- piston
- novel pneumatic
- cylinder cover
- valve body
- Prior art date
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- Expired - Lifetime
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Abstract
The utility model discloses a novel pneumatic valve, which comprises a valve body and a cylinder body, wherein a return spring is arranged between a piston and a valve cap; after penetrating through the centers of a cylinder cover, the piston, the return spring, the cylinder body, the valve cap and the valve body from the top down, the valve rod is connected with a valve clack; a convex step is arranged on the bottom cover, a signal feedback device is arranged on the cylinder cover, and the contact of the signal feedback device is tangent to the external diameter of the top end of the contact. The utility model has the advantages that the structure is simple, the on-off actions are flexible, the occupied space is small, and the performance is stable. The novel pneumatic valve can be closed completely within 2 seconds after instructions are sent down by the PLC, so that carbon dioxide can not be sprayed completely and can be better saved, and a user's use cost is reduced; the time for starting up under a temperature of 57 DEG C below ranges from 0.8 seconds to 1.5 seconds, and the requirement of zero leakage can be met completely; and reliability for emergency dealing during the operation of the system can be ensured.
Description
Technical field
The utility model relates to a kind of pipeline control element, particularly relate to a kind of pneumatic operated valve that is used on constant-pressure storage type high-pressure carbon dioxide fire extinguishing system, the low pressure carbon dioxide fire extinguishing systems, mainly monitor the keying of controlling pneumatic operated valve, the medium carbon dioxide is spurted the purpose that reaches fire extinguishing by micro-computer technology.
Background technology
The high and low pressure carbon-dioxide fire engine medicament that level pressure is stored is stored in the basin; system is under stand-by quasi-operating status; owing to the variation of external environment condition or because other are difficult to expectation, when shielded zone is in an emergency breaking out of fire, high and low pressure CO
2The fire extinguishing system protector sends instruction, CO under the effect of PLC control system
2Gas will inject the driving cylinder of pneumatic ball (dish) valve by filter, pressure-reducing valve, startup magnetic valve, and by being installed in the twisting resistance of the link between cylinder and the valve body, 90 ° of screw cores (butterfly plate) are opened valve and spurted CO in the basin
2The protection life that stamps out a fire device security.Continuing or repeatedly generation of this situation, just caused the job insecurity of pneumatic ball (dish) valve: when system when fire takes place, pneumatic ball (dish) valve cisco unity malfunction, even completely lose function and will become great potential safety hazard, cause the expansion of the fire incident loss greatly that works the mischief.Therefore, normal accurately the unlatching according to instruction of pneumatic ball (dish) valve is key in the key of fire extinguishing system.
The utility model content
The utility model has overcome shortcoming of the prior art, and a kind of novel pneumatic valve is provided, and simple in structure, switching motion is flexible, and the occupation of land space is little, stable performance.
The technical solution of the utility model is: a kind of novel pneumatic valve, comprise valve body and cylinder block, be provided with back-moving spring between piston and valve gap, valve rod is connected with flap behind the center of passing cylinder cover, piston, back-moving spring, cylinder block, valve gap and valve body from top to bottom successively; Bottom is provided with the boss rank, and cylinder cover is provided with signal feedback device, and the contact of signal feedback device and valve stem tip external diameter are tangent.
Described cylinder cover is connected on the middle upper flange of valve body by the long spiro nail that passes valve gap; Described bottom is connected on the middle lower flange of valve body by short screw.
Compared with prior art, the utility model has the advantages that: the carbon dioxide extinguishing agent that is used for sealing up for safekeeping hold-up vessel, but and the pneumatic operated valve of the automatic open close of control carbon dioxide release, be in closed condition at ordinary times, PLC control system follow procedure instruction when breaking out of fire, open pneumatic operated valve release of carbon dioxide extinguishing chemical, discharging finishes closes automatically according to instruction.Used in the past pneumatic ball (dish) valve is at CO
2Extinguishing chemical discharges and to finish because low temperature and the structure problem of himself cause closing or being not closed completely close, causes the CO that system is stored
2Medicament all discharges, and pneumatic operated valve described in the utility model can be assigned instruction back 2 in PLC control " in close fully, so just be unlikely to CO
2Sprayed, helped to save well the utilization of carbon dioxide, reduced user's use cost, promoted environmental protection concept greatly.
Existing pneumatic ball (dish) valve can't be opened in the time of-57 ℃ basically, the energy open and close that perhaps has, but after the action several times, because low temperature, its sealing property reduction causes revealing; And pneumatic operated valve described in the utility model opening time in the time of-57 ℃ is between 0.8 " to 1.5 ", and reaches the requirement of zero leakage fully, and the processing to emergency when moving in system has had high reliable guarantee.
Description of drawings
The utility model will illustrate by example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is a front view of the present utility model;
Fig. 2 is a side view of the present utility model.
The specific embodiment
A kind of novel pneumatic valve as depicted in figs. 1 and 2, comprising: bottom 1, flap 2, valve body 3, valve rod 4, piston 5, cylinder cover 6, signal feedback device 7, driving inlet suction port 8, back-moving spring 9, cylinder block 10, long spiro nail 11, valve gap 12, short screw 13.
On cylinder block 10 tops cylinder cover 6 is set, is used to push down the top of cylinder block 10, be arranged on long spiro nail 11 on the cylinder cover 6 and pass valve gap 12 and be connected on the upper flange in the middle of the valve body 3; Bottom 1 is connected on the lower flange of valve body 3 centres by short screw 13; Be provided with back-moving spring 9 between piston 5 and valve gap 12, valve rod 4 is connected with flap 2 behind the center of passing cylinder cover 6, piston 5, back-moving spring 9, cylinder block 10, valve gap 12 and valve body 3 from top to bottom successively; Be provided with the boss rank at bottom 1, open, be used to support flap 2 when pneumatic operated valve; Driving inlet suction port 8 is directly connected on the cylinder cover 6 by screw thread; Signal feedback device 7 usefulness Screw M5 * 10 are installed on the cylinder cover 6, contact and the tangent effect of playing signal feedback of valve rod 4 top external diameters.
Operation principle of the present utility model is: when the PLC controller sends " startup " instruction, and the CO in the basin
2Medium is by driving the driving inlet suction port 8 of cylinder, 0.5 " time in, CO
2Medium is full of the space of piston 5 and cylinder cover 6, along with the continuous increase of pressure, utilizes pressure reduction to drive on the boss rank that piston 5, valve rod 4, flap 2 move to bottom 1 vertically downward and stops, and has reached the function of this pneumatic operated valve " unlatching " like this; After having finished the PLC programmed instruction, back-moving spring 9 drives flap 2, valve rod 4, piston 5 and leaves bottom 1 and return under the effect of spring compression stress, and when valve rod 4 touched signal feedback device 7, pneumatic operated valve cut out and cut off medium CO
2
Claims (3)
1. novel pneumatic valve, comprise: valve body and cylinder block, it is characterized in that: be provided with back-moving spring between piston and valve gap, valve rod is connected with flap after passing the center of cylinder cover, piston, back-moving spring, cylinder block, valve gap and valve body from top to bottom successively; Bottom is provided with the boss rank, and cylinder cover is provided with signal feedback device, and the contact of signal feedback device and valve stem tip external diameter are tangent.
2. novel pneumatic valve according to claim 1 is characterized in that: described cylinder cover is connected on the middle upper flange of valve body by the long spiro nail that passes valve gap.
3. novel pneumatic valve according to claim 1 is characterized in that: described bottom is connected on the middle lower flange of valve body by short screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202628506U CN201735107U (en) | 2010-07-19 | 2010-07-19 | Novel pneumatic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202628506U CN201735107U (en) | 2010-07-19 | 2010-07-19 | Novel pneumatic valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201735107U true CN201735107U (en) | 2011-02-09 |
Family
ID=43550386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202628506U Expired - Lifetime CN201735107U (en) | 2010-07-19 | 2010-07-19 | Novel pneumatic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201735107U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118623049A (en) * | 2024-08-09 | 2024-09-10 | 西安核设备有限公司 | A special control valve and control method for low-pressure carbon dioxide fire extinguishing system |
-
2010
- 2010-07-19 CN CN2010202628506U patent/CN201735107U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118623049A (en) * | 2024-08-09 | 2024-09-10 | 西安核设备有限公司 | A special control valve and control method for low-pressure carbon dioxide fire extinguishing system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: VITALONG FIREFIGHTING SAFETY GROUP CO., LTD. Free format text: FORMER NAME: SICHUAN WEITELONG FIRE EQUIPMENT CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 611731 Chengdu high tech West West Road, No. 99, attached to No. 9, No. Patentee after: Witter joint-stock company of dragon security against fire group Address before: 611731 Chengdu high tech West West Road, No. 99, attached to No. 9, No. Patentee before: Sichuan Weitelong Fire Fighting Equipment Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110209 |
|
| CX01 | Expiry of patent term |