CN202360831U - Flow adjustment discharge valve - Google Patents
Flow adjustment discharge valve Download PDFInfo
- Publication number
- CN202360831U CN202360831U CN 201120527203 CN201120527203U CN202360831U CN 202360831 U CN202360831 U CN 202360831U CN 201120527203 CN201120527203 CN 201120527203 CN 201120527203 U CN201120527203 U CN 201120527203U CN 202360831 U CN202360831 U CN 202360831U
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- Prior art keywords
- valve
- flow
- valve body
- rate adjustment
- seal ring
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Abstract
The utility model discloses a flow adjustment discharge valve. A valve body is a cylindrical barrel, and the bottom of an opening end of the barrel is fixed on a cabin wall via an edge; a round hole is arranged at a closed end of the barrel; a valve disk is located in the valve body and is concentrically combined with the round hole in a matched manner so as to open or close the round hole, and a sealing ring is arranged at a joint of the valve disk and the round hole of the valve body; a valve stem penetrates through the center of the valve disk so as to extend into the valve body, a screw stem is sleeved in the valve stem via a sliding bearing, and an extending end of the screw stem is connected with a locking wheel and a hand wheel; and an adjusting spring is disposed between a closed end of the valve stem and the valve disk. When actual overpressure in an airtight region is higher than a designed value, the pressure discharge valve automatically opens, and releases pressure outwards according to designed flow; when the actual overpressure is lower than the designed value, the pressure discharge valve is closed; and furthermore, the discharge valve has a real-time flow adjustment function, real-time flow adjustment can be realized in the airtight region, and potential safety hazards due to the fact that seamen operate outside the airtight region are greatly reduced.
Description
Technical field
The utility model relates to a kind of Flow-rate adjustment bleeder valve, and it is used for the airtight regional circumference of hull, satisfies the external pressure releasing requirement of airtight regional particular flow rate.
Background technique
In order to satisfy the above water craft ability of abominable atmosphere environment to external world, the human settlement in the advanced marine vehicles oceangoing ship adopts the malleation design more both at home and abroad.Choose zone on the ship of particular range; Make up air tight condition; Introduce a certain amount of process from the external world by air conditioner ventilating system and filter the back air, in air-tight section, set up certain external malleation (being superpressure) condition, infiltrate in the cabin through the structure hole on the ship to prevent the pollutant in the ambient atmosphere; For the crewman provides good operation, living environment, reach the purpose of resisting pollutant in the extraneous abominable atmosphere environment preferably.
For the foundation that ensures the superpressure condition and stable, except that the new wind of effective guarantee is introduced, should ensure that also pressure stable releases (preferably can release to specific zone), to keep the transient equiliblium of superpressure in the zone.
Summary of the invention
The technical problem that the utility model will solve provides a kind of Flow-rate adjustment bleeder valve; Be used for self-powering type pressure release on the airtight regional circumference and possess the function of Flow-rate adjustment; When the actual superpressure in the airtight zone is higher than design load; Pressure releasing valve member self-powering type is opened, and according to the external pressure release of designed flow; When actual superpressure was lower than design load, the pressure releasing valve member was closed; Simultaneously, also have the function of instant Flow-rate adjustment, can in airtight zone, accomplish, greatly reduce the potential safety hazard that the crewman operates outside air-tight section.
For solving the problems of the technologies described above, the technological scheme that the utility model adopted is:
A kind of Flow-rate adjustment bleeder valve mainly comprises valve body, valve disc, valve rod, seal ring, Regulation spring; It is characterized in that:
The cylindrical cylindrical shell of valve body, the opening end bottom of cylindrical shell is fixed on the bulkhead through the edge; The closed end of cylindrical shell is provided with circular hole; Valve disc is positioned at valve body and is complementary with said circular hole with one heart and engages closure or openness, and the circular hole joint of valve disc and valve body is provided with seal ring; Valve rod passes the center of valve disc and stretches in the valve body, and through the sheathed screw rod of sliding bearing, the external part of screw rod connects locking wheel and handwheel in the valve rod; Between the closed end of valve rod and the valve disc Regulation spring is set.
The cylindrical shell arranged outside flow pointer board of valve body is provided with the flow pointer on the valve disc of cylindrical shell inboard, and the flow pointer can slide along the mark stroke of flow pointer board.
Regulation spring adopts elastic system to be linear cylindroid helicalcoil compression spring.
Seal ring is towards inner cutter hole formula seal ring.
The bleeder valve material is a tin bronze.
The Flow-rate adjustment bleeder valve is arranged on the airtight regional circumference, when air-tight section need not to set up superpressure, tightens locking wheel, sliding bearing 7 fixed relative position, and valve disc is pressed on the seal ring, and this valve cuts out.
When operation needs, to carry out superpressure and set up, when tieing up pressure, pressure release, manually unclamp locking wheel, this moment, valve disc was in closed condition under Regulation spring elastic force.When the superpressure value in the air-tight section reached design load, valve disc self-powering type under the effect of front and back pressure reduction was opened, and along with the pressure in the protective area continues to increase, the aperture of valve disc also increases gradually.
When regional superpressure value does not meet design load, too greatly or too hour, can pass through the rotation hand wheel rotating screw bolt, screw rod slides on valve rod, with the pretightening force of adjustment Regulation spring, thereby comes according to required drawoff discharge pressure release.Flow pointer board and combine the position of flow pointer can judge the aperture of valve disc and the stability of position thereof on the barrel-type valve body wherein.
With respect to existing technology, the beneficial effect of the utility model is:
1) valve body adopts barrel-type, adopts adjusting handle and screw rod, and is designed with locking wheel (being locking device) etc., and flow regulating function all is positioned at high pressure side (being air-tight section).
2) adopt built-in valve disc, can conveniently realize the adjusting of flow and the closing function of valve.
3) adopt the straight-line motion mechanism design of cover screw rod in the special-purpose fluting steel pipe, guarantee that screw rod rotates when regulating the valve disc linear slide and can not rotate, and satisfies the freely regulated needs of valve disc travel.
4) adopt towards inner cutter hole formula special sealing ring, effectively guarantee sealability.
5) the Flow-rate adjustment pointer is set on valve disc, and can observes valve disc at the valve body indication window and regulate the size of aperture and the stable case of valve disc aperture.
6) Regulation spring adopts elastic system to be linear cylindroid helicalcoil compression spring, and the pretightening force of valve member is adjustable within the specific limits.
Description of drawings
Fig. 1 is a Flow-rate adjustment bleeder valve structural drawing (sectional view)
Embodiment
For understanding the utility model better, the utility model is done further to describe below in conjunction with accompanying drawing and embodiment.
As shown in Figure 1, the consisting of of Flow-rate adjustment bleeder valve: handwheel 1; Locking wheel 2; Valve rod 3; Seal ring 4; Valve disc 5; Flow pointer 6; Sliding bearing 7; Flow pointer board 8; Regulation spring 9; Screw rod 10; Valve body 11.
The cylindrical shell arranged outside flow pointer board 8 of valve body 11 is provided with flow pointer 6 on the valve disc 5 of cylindrical shell inboard, and flow pointer 6 can slide along the mark stroke of flow pointer board 8.
The Flow-rate adjustment bleeder valve is arranged on the airtight regional circumference, when air-tight section need not to set up superpressure, tightens locking wheel 2, sliding bearing 7 fixed relative position, and valve disc 5 is pressed on the seal ring 4, and this valve cuts out.
When operation needs, to carry out superpressure and set up, when tieing up pressure, pressure release, manually unclamp locking wheel 2, this moment, valve disc 5 was in closed condition under Regulation spring 9 elastic force.When the superpressure value in the air-tight section reached design load, valve disc 5 self-powering type under the effect of front and back pressure reduction was opened, and along with the pressure in the protective area continues to increase, the aperture of valve disc 5 also increases gradually.
When regional superpressure value does not meet design load, too greatly or too hour, can pass through rotation hand wheel 1 rotating screw bolt 10, screw rod 10 slides on valve rod 3, with the pretightening force of adjustment Regulation spring 9, thereby comes according to required drawoff discharge pressure release.Flow pointer board 8 and combine the position of flow pointer 6 can judge the aperture of valve disc 5 and the stability of position thereof on the barrel-type valve body 11 wherein.
Embodiment's index parameter:
Valve member inside nominal diameter DN125; Rated flow 250m
3/ h (front and back pressure reduction 250Pa, no pretightening force); Pretightening force regulation range 0～700Pa; The material tin bronze.
The above disclosed preferred embodiment that is merely the utility model, the equivalence of doing according to the utility model changes, and still belongs to the protection domain of the utility model.
Claims (6)
1. a Flow-rate adjustment bleeder valve mainly comprises valve body, valve disc, valve rod, seal ring, Regulation spring; It is characterized in that: the cylindrical cylindrical shell of valve body, the opening end bottom of cylindrical shell is fixed on the bulkhead through the edge; The closed end of cylindrical shell is provided with circular hole; Valve disc is positioned at valve body and is complementary with said circular hole with one heart and engages closure or openness, and the circular hole joint of valve disc and valve body is provided with seal ring; Valve rod passes the center of valve disc and stretches in the valve body, and through the sheathed screw rod of sliding bearing, the external part of screw rod connects locking wheel and handwheel in the valve rod; Between the closed end of valve rod and the valve disc Regulation spring is set.
2. Flow-rate adjustment bleeder valve according to claim 1 is characterized in that the cylindrical shell arranged outside flow pointer board of valve body, on the inboard valve disc of cylindrical shell the flow pointer is set, and the flow pointer can slide along the mark stroke of flow pointer board.
3. Flow-rate adjustment bleeder valve according to claim 1 and 2 is characterized in that Regulation spring adopts elastic system to be linear cylindroid helicalcoil compression spring.
4. Flow-rate adjustment bleeder valve according to claim 1 is characterized in that seal ring is towards inner cutter hole formula seal ring.
5. Flow-rate adjustment bleeder valve according to claim 3 is characterized in that seal ring is towards inner cutter hole formula seal ring.
6. according to claim 1 or 2 or 4 or 5 described Flow-rate adjustment bleeder valves, it is characterized in that the bleeder valve material is a tin bronze.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120527203 CN202360831U (en) | 2011-12-15 | 2011-12-15 | Flow adjustment discharge valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120527203 CN202360831U (en) | 2011-12-15 | 2011-12-15 | Flow adjustment discharge valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202360831U true CN202360831U (en) | 2012-08-01 |
Family
ID=46572019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120527203 Expired - Lifetime CN202360831U (en) | 2011-12-15 | 2011-12-15 | Flow adjustment discharge valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202360831U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361424A (en) * | 2018-02-23 | 2018-08-03 | 中国舰船研究设计中心 | A kind of air cavity damp type Pressure Relief Valve |
-
2011
- 2011-12-15 CN CN 201120527203 patent/CN202360831U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361424A (en) * | 2018-02-23 | 2018-08-03 | 中国舰船研究设计中心 | A kind of air cavity damp type Pressure Relief Valve |
| CN108361424B (en) * | 2018-02-23 | 2022-09-13 | 中国舰船研究设计中心 | Air cavity damping type pressure relief valve |
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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: 20120801 |
|
| CX01 | Expiry of patent term |