CN216555551U - Nuclear power plant is with airtight type backpressure valve of preventing fires - Google Patents
Nuclear power plant is with airtight type backpressure valve of preventing fires Download PDFInfo
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- CN216555551U CN216555551U CN202122764619.8U CN202122764619U CN216555551U CN 216555551 U CN216555551 U CN 216555551U CN 202122764619 U CN202122764619 U CN 202122764619U CN 216555551 U CN216555551 U CN 216555551U
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- valve
- valve rod
- lifting lug
- nuclear power
- valve plate
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The utility model discloses a fireproof closed type residual pressure valve for a nuclear power plant, which comprises an open disc type valve body, wherein a lifting lug is arranged at the bottom side of the open disc type valve body, a valve plate opening and closing adjusting mechanism is arranged on the lifting lug through a pivot, the valve plate opening and closing adjusting mechanism comprises a valve plate, a valve rod and a heavy hammer, the valve rod is of a U-shaped structure, one end of the valve rod is connected with the valve plate, the other end of the valve rod is connected with the lifting lug, the valve rod is provided with a sliding groove, the heavy hammer is arranged in the sliding groove, a certain static pressure difference between the inside and the outside of a room can be automatically maintained without energy consumption by adjusting and fixing the position of the heavy hammer, a locking handle abutted against the valve rod is arranged on the lifting lug, the locking handle consists of an unlocking mechanism and a locking mechanism, and the residual pressure valve is locked under an accident condition to play a fireproof partition function.
Description
Technical Field
The utility model relates to the technical field of residual pressure valves, in particular to a fireproof closed residual pressure valve for a nuclear power plant.
Background
The existing residual pressure valve has good adaptability to sharp static pressure change, and is generally suitable to be arranged on the outer wall of the leeward side between clean rooms with different static pressure differences, and when the smoke-proof stairwell pressurizes and supplies air and the front room does not supply air, the residual pressure valve can be arranged on the partition wall between the stairwell and the front room.
Present backpressure valve does not have the fire prevention function usually in the use, leads to when the conflagration breaing out, can't lock the valve plate to produce the phenomenon that the intensity of a fire stretchs easily, the user's of not being convenient for use has reduced the suitability of backpressure valve and can not automatic maintenance indoor outer certain static pressure difference, causes the limitation increase of backpressure valve.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems, the utility model aims to provide a fireproof closed type residual pressure valve for a nuclear power plant.
In order to realize the technical purpose, the scheme of the utility model is as follows: the utility model provides a nuclear power plant is with airtight type backpressure valve of fire prevention, including opening disc type valve body, opening disc type valve body bottom side be provided with the lug, the lug be provided with valve plate through the pivot and open and close adjustment mechanism, valve plate open and close adjustment mechanism include valve plate, valve rod, weight, the valve rod be U type structure, one end is connected with the valve plate, the other end is connected with the lug, the valve rod is provided with the spout, the weight sets up in the spout.
Preferably, a seal 2 is provided at a contact portion between the open disc valve body and the valve plate.
Preferably, the lifting lug is provided with a locking handle which abuts against the valve rod.
Preferably, the locking handle is composed of an unlocking mechanism and a locking mechanism.
The utility model has the following beneficial effects:
1. the position of the heavy hammer is adjusted and fixed, so that a certain static pressure difference between the indoor and the outdoor can be automatically maintained without energy consumption;
2. by arranging the locking handle, the locking can be quickly carried out in case of fire, and the fireproof partition effect is achieved;
3. the residual pressure valve has a simple structure and is convenient to install and maintain;
4. by arranging the sealing element, the sealing and fireproof effects are further enhanced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a sectional view a-a of fig. 1.
Detailed Description
The utility model is described in further detail below with reference to the figures and specific embodiments.
As shown in the figures, the specific embodiment of the present invention is:
the utility model provides a nuclear power plant is with airtight type backpressure valve of fire prevention, including opening disc type valve body, opening disc type valve body bottom side be provided with the lug, the lug be provided with the valve plate through pivot 8 and open and close adjustment mechanism, the valve plate open and close adjustment mechanism include valve plate 3, valve rod 4, weight 6, valve rod 4 be U type structure, one end is connected with valve plate 3, the other end is connected with the lug, valve rod 4 is provided with the spout, weight 6 sets up in the spout, through adjusting and fixed weight 6 positions, realizes the automatic certain static pressure difference of indoor outer of maintaining of no energy consumption.
The contact part of the opening disc type valve body and the valve plate 3 is provided with a sealing element 2, so that the sealing and fireproof effects can be effectively realized.
The lifting lug on be provided with the locking handle 5 of butt valve rod 4, locking handle 5 constitute by unlocking mechanism and locking mechanism, lock the residual pressure valve under accident condition, play the fire prevention and cut off the function.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any minor modifications, equivalent replacements and improvements made to the above embodiment according to the technical spirit of the present invention should be included in the protection scope of the technical solution of the present invention.
Claims (4)
1. The utility model provides a nuclear power plant is with airtight type residual pressure valve of fire prevention, including opening disc type valve body, its characterized in that: the bottom side of the open disc type valve body is provided with a lifting lug, the lifting lug is provided with a valve plate opening and closing adjusting mechanism through a pivot (8), the valve plate opening and closing adjusting mechanism comprises a valve plate (3), a valve rod (4) and a heavy hammer (6), the valve rod (4) is of a U-shaped structure, one end of the valve rod is connected with the valve plate (3), the other end of the valve rod is connected with the lifting lug, the valve rod (4) is provided with a sliding groove, and the heavy hammer (6) is arranged in the sliding groove.
2. The closed type residual pressure valve for fire prevention for nuclear power plants according to claim 1, characterized in that: and a sealing element (2) is arranged at the contact part of the open disc type valve body and the valve plate (3).
3. The closed type residual pressure valve for fire prevention for nuclear power plants according to claim 1, characterized in that: the lifting lug is provided with a locking handle (5) which is abutted against the valve rod (4).
4. The closed type residual pressure valve for fire prevention for nuclear power plants according to claim 3, characterized in that: the locking handle (5) is composed of an unlocking mechanism and a locking mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122764619.8U CN216555551U (en) | 2021-11-12 | 2021-11-12 | Nuclear power plant is with airtight type backpressure valve of preventing fires |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122764619.8U CN216555551U (en) | 2021-11-12 | 2021-11-12 | Nuclear power plant is with airtight type backpressure valve of preventing fires |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216555551U true CN216555551U (en) | 2022-05-17 |
Family
ID=81572382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122764619.8U Active CN216555551U (en) | 2021-11-12 | 2021-11-12 | Nuclear power plant is with airtight type backpressure valve of preventing fires |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216555551U (en) |
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2021
- 2021-11-12 CN CN202122764619.8U patent/CN216555551U/en active Active
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