CN203979430U - Wet alarm valve - Google Patents
Wet alarm valve Download PDFInfo
- Publication number
- CN203979430U CN203979430U CN201420421932.9U CN201420421932U CN203979430U CN 203979430 U CN203979430 U CN 203979430U CN 201420421932 U CN201420421932 U CN 201420421932U CN 203979430 U CN203979430 U CN 203979430U
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- valve
- flap
- valve seat
- wet alarm
- valve body
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Abstract
A wet alarm valve for rotary opening and closing structure, adopts current to promote the principle of flap unlatching, self-weight reset, and profile is spindle-type, has designed insert seal coil structures, and valve seat catchment recess adopts narrow groove mode, and rated pressure reaches 2.1MPa, belongs to fire-fighting domain; By flap, bearing pin, valve seat, pressing plate, seal ring, gasket seal, bolt, valve body, valve gap, formed; Seal ring is embedded to be loaded in flap fasteningly by pressing plate by screw, and flap is fixed in valve body by bearing pin, and valve seat build-in is among valve body; Flap is placed on valve seat and is sealed by self eccentric gravity at ordinary times, and when wet alarm valve water outlet, current promote flap and open water outlet, and a part of water is exported through scrobicular ring road to the interface of valve body that catchments by several straight holes of plane on valve seat simultaneously; While stopping water outlet, flap resets under gravity; Solved the hidden danger of conventional wet alarm valve seal ring separation, seepage; The problem of eliminated false alarm, early reporting to the police; The utility model is with a wide range of applications in metallurgy, electric power, tall building.
Description
Technical field
The utility model relates to a kind of for automatic sprinkling system, rated working pressure reaches 2.1MPa, profile is spindle-type, be designed to the structure of rotary opening and closing, adopt current to promote the principle of flap unlatching, self-weight reset, designed insert seal coil structures, valve seat catchment recess adopts narrow groove mode, the core control valve in automatic sprinkling system: wet alarm valve, belongs to fire-fighting domain.
Background technique
Current wet alarm valve, rated working pressure is 1.2MPa, seal ring is flat grip structure, under high-pressure high-flow impacts, often occurs that seal ring, pressing plate separation are loose, the accident of seepage; The problem that often false alarm occurs, early reports to the police under elevated pressures fluctuation, conventional wet alarm valve can not meet the fire-fighting demand for metallurgy, electric power, petrochemical industry, tall building.
Summary of the invention
In order to solve wet alarm valve under high-pressure high-flow impacts, the hidden danger of seal ring, pressing plate separation, seepage, the elimination problem that false alarm, morning report to the police under high hydraulic pressure, improve the pressure rank of wet alarm valve, the utility model provides a kind of wet alarm valve, and its rated working pressure is 2.1MPa, nominal diameter 200mm, flow resistance loss≤0.02MPa, water supply flow reaches 9500L/min; The utility model has designed insert seal coil structures, and the catchment recess of valve seat adopts narrow groove mode, adopts the large tripe fluidic structures of spindle-type, in metallurgy, electric power, petrochemical industry, tall building, is with a wide range of applications.
The utility model is achieved through the following technical solutions:
Wet alarm valve is comprised of flap, bearing pin, valve seat, screw, pressing plate, seal ring, valve body, bolt, gasket seal, valve gap; Seal ring is embedded to be loaded in flap fasteningly by pressing plate by screw, and flap is fixed in valve body by bearing pin, and valve seat build-in is among valve body.
Flap is placed on valve seat by self eccentric gravity at ordinary times, the catchment recess of plane on seal valve seat; When wet alarm valve water outlet, current promote flap and overcome eccentric gravity and open water outlet, simultaneously a part of water by several straight holes of plane on valve seat through the R of scrobicular ring road to valve body that catchment
c1/2 interface output; While stopping water outlet, flap resets and closes under self eccentric Action of Gravity Field, the catchment recess of plane on seal valve seat.
The beneficial effects of the utility model are: designed insert seal coil structures, resisted high-pressure high-flow water impact, solved the problem of seal ring, the separated seepage of pressing plate, improved stability and the sealing reliability of seal ring work; On valve seat, the catchment recess of plane adopts narrow groove mode, under 2.1MPa water pressure, and the problem of eliminated wet alarm valve false alarm, early reporting to the police; Adopted the large tripe fluidic structures of spindle-type, overcurrent is smooth and easy, has reduced flow resistance loss; The utility model has been realized in 2.1MPa working pressure lower seal, warning function requirement, possesses the ability that anti-high-pressure high-flow impacts; This pressure rank is the highest level of U.S.'s like product, higher than the requirement of GB 1.6MPa, is the basis that this wet alarm valve moves towards international market.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is valve body sectional drawing of the present utility model.
Fig. 2 is outline drawing of the present utility model.
Fig. 3 is flap half sectional view of the present utility model.
Fig. 4 is valve seat plan view of the present utility model.
Fig. 5 is valve seat plan view of the present utility model.
Embodiment
Below in conjunction with the drawings and the specific embodiments, the utility model is further described:
Wet alarm valve is designed to the structure of rotary opening and closing, by: flap (1), bearing pin (2), valve seat (3), screw (4), pressing plate (5), seal ring (6), valve body (7), bolt (8), gasket seal (9), valve gap (10) form; Seal ring is embedded to be loaded in flap fasteningly by pressing plate by screw, and flap is fixed in valve body by bearing pin, and seat ring is coated with sealer interference build-in among valve body; Flap is placed on valve seat by self eccentric gravity at ordinary times, the catchment recess of plane on seal valve seat; When wet alarm valve water outlet, current promote flap and overcome eccentric gravity and open water outlet, simultaneously a part of water by several straight holes of plane on valve seat through the R of scrobicular ring road to valve body that catchment
c1/2 interface output, as the driving water source that automatic sprinkling system is reported to the police, interlock is controlled; While stopping water outlet, flap resets and closes under self eccentric Action of Gravity Field, stops output and drives water source.The technical scheme in the invention for solving the technical problem is: by designed insert seal coil structures in the utility model, flap is provided with o-ring groove, seal ring only exposes 1mm after packing groove compression plate, screw fastening into, effectively resisted the impact of high-pressure water flow, solve the seal ring of flat grip structure, the problem of the separated seepage of pressing plate, improved the Stability and dependability of seal ring work; Inner plane is carved with the 2 concentric potted lines in road, improves the adhesive force that seal ring compresses; Adopt waist type pin shaft hole, make flap assembly there is certain free floating allowance, improve the flexibility that wet alarm valve resets; Flap is directly fixed in valve body by bearing pin, than existing wet alarm valve, adopt supporting element to wear the bearing pin mode that fixedly flap, supporting element are fixed on valve gap, valve gap is connected with valve body again, greatly eliminated assembly accumulation error, valve mechanism configuration is more simplification, reliable also.Valve seat build-in, in valve body, exceeds valve body inner plane 3.5mm, avoids being subject to accumulation of impurities in water and seal failure; Valve seat assembling adopts ring to be coated with sealer interference technique, than the features simple structure traditional being threaded, upper and lower cylindrical adds O RunddichtringO; Between the upper and lower cylindrical of valve seat, be provided with the scrobicular ring road that catchments, on valve seat plane machining the wide catchment recess of 2mm, in groove, all bore 10 Φ 3mm straight holes and communicate with the scrobicular ring road that catchments, the scrobicular ring road that catchments leads to the R of valve body
c1/2 interface, the upper and lower periphery of valve seat has respectively been processed the wide groove of 2 road 1mm; On valve seat, the catchment recess of plane adopts the narrow groove mode of 2mm, under high hydraulic pressure with the micro-opening state of flap under, catchmented and delayed, the blocked output of confluxing of water of narrow groove, has eliminated wet alarm valve false alarm, the problem of warning early.Adopted the large tripe fluidic structures of spindle-type, flap opening angle surpasses 78 °, and overcurrent is smooth and easy, has reduced flow resistance loss.Valve outlet adopts groove type Placement, compares flange-type and connects, and volume weight reduces, and has reduced raw materials consumption.
1) material: valve body, valve gap adopt spheroidal graphite cast iron, screw, bearing pin, pressing plate, bolt adopt stainless steel, and valve seat adopts bell metal, and seal ring, gasket seal adopt mold pressing nitrile butadiene rubber, and flap adopts pack alloy.
2) rated working pressure: 2.1MPa.
3) strength test: 8.4MPa, ne-leakage, nothing distortion.
4) under 0.14MPa-2.1MPa intake pressure, outlet flow discharges is 15L/min-50L/min, and wet alarm valve is opened at 15s-60s, mouthful continuous wave output current of reporting to the police, output water flow pressure: >=0.05MPa.
5) flow resistance loss :≤0.02MPa.
6) water impact: under 6.1m/s flow velocity, each part is without separated, loose, distortion.
7) mounting type: upright.
The utility model is with a wide range of applications in electric power, petrochemical industry, metallurgy, high building fire fighting.
Claims (3)
1. a wet alarm valve, is characterized in that being designed to the structure of rotary opening and closing, adopts current to promote that flap is opened, the principle of self-weight reset, and profile is spindle-type, has designed insert seal coil structures, and valve seat catchment recess adopts narrow groove mode; Seal ring is embedded to be loaded in flap fasteningly by pressing plate by screw, and flap is fixed in valve body by bearing pin, and valve seat build-in is among valve body; Flap covers valve base sealing by self eccentric gravity at ordinary times; When wet alarm valve water outlet, current promote flap and open water outlet, simultaneously a part of water by the several straight holes in valve seat through catchment recess the R to valve body
c1/2 interface output; Wet alarm valve by: flap (1), bearing pin (2), valve seat (3), screw (4), pressing plate (5), seal ring (6), valve body (7), bolt (8), gasket seal (9), valve gap (10) form.
2. wet alarm valve according to claim 1, is characterized in that flap is provided with o-ring groove, and inner plane is carved with the 2 concentric potted lines in road, and pin shaft hole is waist-shaped hole.
3. wet alarm valve according to claim 1, it is characterized in that being provided with the scrobicular ring road that catchments between the upper and lower cylindrical of valve seat, on valve seat plane machining the wide catchment recess of 2mm, in groove, all bore 10 Φ 3mm straight holes and communicate with the scrobicular ring road that catchments, the upper and lower periphery of valve seat has respectively been processed the wide groove of 2 road 1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420421932.9U CN203979430U (en) | 2014-07-29 | 2014-07-29 | Wet alarm valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420421932.9U CN203979430U (en) | 2014-07-29 | 2014-07-29 | Wet alarm valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203979430U true CN203979430U (en) | 2014-12-03 |
Family
ID=51976876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420421932.9U Active CN203979430U (en) | 2014-07-29 | 2014-07-29 | Wet alarm valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203979430U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112648406A (en) * | 2020-12-21 | 2021-04-13 | 浙江宣达环境科技股份有限公司 | Wear-resistant turnover plate reversing valve |
-
2014
- 2014-07-29 CN CN201420421932.9U patent/CN203979430U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112648406A (en) * | 2020-12-21 | 2021-04-13 | 浙江宣达环境科技股份有限公司 | Wear-resistant turnover plate reversing valve |
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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: FlowCom Mechanical Technology (Shanghai) Co. Ltd. Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice |
Addressee: FlowCom Mechanical Technology (Shanghai) Co. Ltd. Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice |
Addressee: FlowCom Mechanical Technology (Shanghai) Co. Ltd. Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: FlowCom Mechanical Technology (Shanghai) Co. Ltd. Document name: Notification of Decision on Request for Restoration of Right |
|
| DD01 | Delivery of document by public notice |