CN202946760U - Valve rod cooling device of quick closing valve - Google Patents
Valve rod cooling device of quick closing valve Download PDFInfo
- Publication number
- CN202946760U CN202946760U CN 201220555086 CN201220555086U CN202946760U CN 202946760 U CN202946760 U CN 202946760U CN 201220555086 CN201220555086 CN 201220555086 CN 201220555086 U CN201220555086 U CN 201220555086U CN 202946760 U CN202946760 U CN 202946760U
- Authority
- CN
- China
- Prior art keywords
- valve rod
- pillar
- closing valve
- shell body
- closed shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Details Of Valves (AREA)
Abstract
The utility model belongs to a device of cooling a valve rod of a stream quick closing valve, in particular to a valve rod cooling device of a quick closing valve. Central installing holes are respectively formed in two end faces of a pillar-shaped closed shell body. An air-inlet pipe and an air-outlet pipe are arranged on a pillar surface of the pillar-shaped closed shell body. A cylindrical sieve plate where sieve holes are uniformly distributed is longitudinally arranged in the pillar-shaped closed shell body. Two ends of the cylindrical sieve plate are connected with two end faces of the pillar-shaped closed shell body. The pillar-shaped closed shell body is divided into an air-inlet room and an air-uniform room. A stuffing box packing can be arranged between a pipe sleeve of each installing hole of the pillar-shaped closed shell body and the valve rod. The pillar-shaped closed shell body is fixedly connected on the valve rod of the quick closing valve through an installed clamping device on an outer wall of the pipe sleeve. The valve rod cooling device of the quick closing valve is simple in structure, convenient to operate, good in effects of cooling the valve rod of the quick closing valve, capable of prolonging the service life of a valve rod oil cylinder sealing ring, and capable of guaranteeing the normal work of a steam turbine.
Description
Technical field
The utility model belongs to the device of cooling steam quick-closing valve valve rod, particularly a kind of quick-closing valve valve rod cooling unit.
Background technique
Quick-closing valve is the main cut-off valve between initial steam pipeline and steam turbine, can cut off in a short period of time air inlet when breaking down in steam turbine operation.With critical safety device interlock, rotor generation hypervelocity and excessive axial displacement are made the fastest shutdown reaction automatically.In steam turbine start or normally in service, quick-closing valve by speed closes oil pressure with the piston plate of oil cylinder together with piston under the effect that overcomes spring force, thereby the right-hand member of shifting the quick-closing valve oil cylinder onto is often opened the quick-closing valve maintenance.Initial steam constantly enters steam turbine by quick-closing valve, the heat of initial steam has together passed to the oil cylinder place of quick-closing valve by the quick-closing valve valve rod, although installed block plate on valve rod, but still can't effectively organize the conduction of heat, so very easily cause the heat ageing that is subjected to of cylinder seal, thereby cause at steam turbine when normally moving, the leakage that speed is closed oil causes the accident of closing of quick-closing valve, thereby makes steam turbine jumping car.
Summary of the invention
The purpose of this utility model is to provide a kind of quick-closing valve valve rod cooling unit, and it is simple in structure, and is easy to operate, and cooling quick-closing valve valve rod effective can extend working life of valve rod cylinder seal, ensures the steam turbine normal operation.
the purpose of this utility model is achieved in that a kind of quick-closing valve valve rod cooling unit, center mounting hole is being set respectively on the both ends of the surface of column enclosing housing, suction tude and steam outlet pipe are being set on the cylinder of column enclosing housing, the cylindrical sieve plate of uniform sieve aperture vertically is being set in the column enclosing housing, the two ends of cylindrical sieve plate are connected with the two ends end face of column enclosing housing, the column enclosing housing is divided into suction chamber and equal air chamber, in the pipe box of column enclosing housing mounting hole and between valve rod, stuffing box packing is being set, by the clamp device of installing, the column enclosing housing is being fixed on the quick-closing valve valve rod on the outer wall of pipe box.
The utility model mainly utilizes the air of certain pressure, small flow, temperature constant, be passed in the reasonable housing of sealing effect by suction tude, by the cylindrical sieve plate in housing, its air that is filled with is carried out step-down, noise reduction, make comprehensive heat exchange conduction of air and valve rod heat, thereby reach the effect of cooling valve rod.Cooled steam is outside outlet pipe is discharged housing.
The utility model is simple in structure, and is easy to operate, and cooling quick-closing valve valve rod effective extended working life of valve rod cylinder seal, guaranteed the steam turbine normal operation.
Description of drawings
The utility model will be further described below in conjunction with accompanying drawing,
Fig. 1 is sectional structure schematic diagram of the present utility model;
Fig. 2 is the utility model mounting structure schematic diagram.
Embodiment
a kind of quick-closing valve valve rod cooling unit, as Fig. 1, shown in Figure 2, center mounting hole is being set respectively on the both ends of the surface of column enclosing housing 2, suction tude 6 and steam outlet pipe 1 are being set on the cylinder of column enclosing housing 2, at the interior vertical cylindrical sieve plate 3 that uniform sieve aperture is being set of column enclosing housing 2, the two ends of cylindrical sieve plate 3 are connected with the two ends end face of column enclosing housing 2, column enclosing housing 2 is divided into suction chamber and equal air chamber, stuffing box packing 5 is being set in the pipe box of column enclosing housing 2 mounting holes and between valve rod 7, by the clamp device 4 of installing, column enclosing housing 2 is being fixed on quick-closing valve valve rod 7 on the outer wall of pipe box.The annular opening folder of the structure of clamp device 4 for being made of steel disc, affixed the engaging lug with through hole respectively on the steel disc at annular opening folder steel disc opening two ends is connected by the engaging lug of bolt with symmetry.The utility model is arranged on the quick-closing valve valve rod 7 on block plate 8 right sides.
Quick-closing valve valve rod cooling unit is simple in structure, light and handy, easy to operate, flexible, is applicable to all quick-closing valve structures, and good cooling results has extended life-span of valve rod cylinder seal greatly.And this device has obvious decrease of noise functions, thereby improved the noise that air flow arrangement produces.
Claims (2)
1. quick-closing valve valve rod cooling unit, it is characterized in that: center mounting hole is being set respectively on the both ends of the surface of column enclosing housing (2), suction tude (6) and steam outlet pipe (1) are being set on the cylinder of column enclosing housing (2), the cylindrical sieve plate (3) of uniform sieve aperture vertically is being set in column enclosing housing (2), the two ends of cylindrical sieve plate (3) are connected with the two ends end face of column enclosing housing (2), column enclosing housing (2) is divided into suction chamber and equal air chamber, stuffing box packing (5) is being set in the pipe box of column enclosing housing (2) mounting hole and between valve rod (7), by the clamp device (4) of installing, column enclosing housing (2) is being fixed on quick-closing valve valve rod (7) on the outer wall of pipe box.
2. a kind of quick-closing valve valve rod cooling unit according to claim 1, it is characterized in that: the annular opening folder of the structure of clamp device (4) for being consisted of by steel disc, affixed the engaging lug with through hole respectively on the steel disc at annular opening folder steel disc opening two ends is connected by the engaging lug of bolt with symmetry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220555086 CN202946760U (en) | 2012-10-27 | 2012-10-27 | Valve rod cooling device of quick closing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220555086 CN202946760U (en) | 2012-10-27 | 2012-10-27 | Valve rod cooling device of quick closing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202946760U true CN202946760U (en) | 2013-05-22 |
Family
ID=48422462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220555086 Expired - Fee Related CN202946760U (en) | 2012-10-27 | 2012-10-27 | Valve rod cooling device of quick closing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202946760U (en) |
-
2012
- 2012-10-27 CN CN 201220555086 patent/CN202946760U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103500968B (en) | A kind of two-way air suction type electric cable cooler | |
| CN203717965U (en) | Four-eccentric butterfly valve structure with purging function | |
| CN202501078U (en) | Pneumatic coaxial valve | |
| CN202946760U (en) | Valve rod cooling device of quick closing valve | |
| CN203098201U (en) | Oil-free lubrication compressor efficient cooling packing sealing device | |
| RU126772U1 (en) | COMPRESSOR CYLINDER (OPTIONS) | |
| CN102305105B (en) | Sealing structure of screw expander | |
| CN203463778U (en) | Cold air valve for gas turbine | |
| CN203548315U (en) | Main shaft dry-type operation magnetic pump | |
| CN203655641U (en) | Shaft sealing structure of water vapor screw rod compressor | |
| CN203175986U (en) | Petrochemical pump cover | |
| CN202851915U (en) | Inside cooler of coal cutter cutting portion | |
| CN202418701U (en) | Top-mounted ball valve | |
| CN103545776B (en) | A kind of two-way air suction type electric cable cooling system | |
| CN103603825A (en) | Spindle dry-type-running magnetic drive pump | |
| CN204099340U (en) | A kind of cooling oil cylinder | |
| CN103388571B (en) | A kind of hydrogen gas compressor Seal Kit | |
| CN218030899U (en) | Magnetic sucker cylinder | |
| CN102628374A (en) | Improved screw rod expansion machine | |
| CN103603803A (en) | Water vapor screw compressor shaft seal structure | |
| CN202283478U (en) | High-temperature resistance embedded type roll shaft sealing device | |
| CN103500970B (en) | A kind of square two-way air suction type electric cable cooler | |
| CN203453562U (en) | Gas fire extinguishing system container valve | |
| CN203835511U (en) | Variable air pressure type silencer provided with fastening device | |
| CN219119326U (en) | Device for reducing carbon deposit of oil baffle of steam turbine generator unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130522 Termination date: 20131027 |