CN111350873A - Valve shaft cooling device - Google Patents
Valve shaft cooling device Download PDFInfo
- Publication number
- CN111350873A CN111350873A CN201811569162.1A CN201811569162A CN111350873A CN 111350873 A CN111350873 A CN 111350873A CN 201811569162 A CN201811569162 A CN 201811569162A CN 111350873 A CN111350873 A CN 111350873A
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- CN
- China
- Prior art keywords
- valve shaft
- hole
- water inlet
- water outlet
- cutting groove
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- 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.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K49/00—Means in or on valves for heating or cooling
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
Abstract
A valve shaft cooling device comprises a valve shaft and a shaft sleeve, wherein a stepped hole is formed in the shaft sleeve, the valve shaft is arranged in the stepped hole, a gasket and filler are arranged in the thick end of the stepped hole, a gland used for pressing the filler on the gasket is mounted on the shaft sleeve, a gap is formed between the thin end of the stepped hole and the valve shaft, a water inlet hole and a water outlet hole are formed in the valve shaft, and the lower end of the water inlet hole and the lower end of the water outlet hole are respectively communicated with the upper end and the lower end of the; the water inlet cutting groove and the water outlet cutting groove are arranged in the gland and are respectively communicated with the upper end of the water inlet hole and the upper end of the water outlet hole, and two pipe joints which are respectively communicated with the water inlet cutting groove and the water outlet cutting groove are arranged on the gland. The invention can effectively cool the valve shaft and prevent the heat generated after the valve core is contacted with the high-temperature medium from being transferred to the actuator.
Description
Technical Field
The invention relates to a valve shaft cooling device.
Background
The valve shaft is used for transmitting the output rotary torque of the actuator to the valve core so as to drive the valve core to rotate, the valve is opened and closed, when the valve core is contacted with a high-temperature medium, heat is conducted outwards through the valve shaft, the temperature of the other end of the valve shaft, which is heated, of the actuating mechanism device is increased, and the performance of the actuator connected to one end of the valve shaft is reduced due to the increase of the working temperature.
Disclosure of Invention
The invention aims to provide a valve shaft cooling device which can effectively cool a valve shaft and prevent heat generated after a high-temperature medium contacted with a valve core from being transferred to an actuator.
In order to solve the above problems, the technical solution to be solved by the present invention is:
a valve shaft cooling device comprises a valve shaft and a shaft sleeve, wherein a stepped hole is formed in the shaft sleeve, the valve shaft is arranged in the stepped hole, a gasket and filler are arranged in the thick end of the stepped hole, a gland used for pressing the filler on the gasket is mounted on the shaft sleeve, a gap is formed between the thin end of the stepped hole and the valve shaft, a water inlet hole and a water outlet hole are formed in the valve shaft, and the lower end of the water inlet hole and the lower end of the water outlet hole are respectively communicated with the upper end and the lower end of the; the water inlet cutting groove and the water outlet cutting groove are arranged in the gland and are respectively communicated with the upper end of the water inlet hole and the upper end of the water outlet hole, and two pipe joints which are respectively communicated with the water inlet cutting groove and the water outlet cutting groove are arranged on the gland.
The lower end of the water inlet hole and the lower end of the water outlet hole are respectively communicated with the upper end and the lower end of the spiral channel.
Graphite sealing rings are arranged in the upper and lower side glands of the water inlet cutting groove and the water outlet cutting groove.
A graphite sealing ring is arranged between the lower end of the valve shaft and the stepped hole.
The invention has the technical effects that: during the use, the cooling water is discharged from the gland water outlet grooving after entering by the gland water inlet grooving and sequentially passing through the water inlet hole, the gap and the water outlet hole, and the valve shaft and the shaft sleeve are effectively and rapidly cooled by utilizing the circulating cooling water, so that the heat generated after the high-temperature medium contacted by the valve core is prevented from being transferred to the actuator, and the device has a simple structure and is convenient to manufacture and maintain.
Drawings
The invention is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic cross-sectional view of the present invention,
fig. 2 is a schematic perspective view of the present invention with respect to a collar and a valve shaft.
In the figure: the device comprises a shaft sleeve 1, a valve shaft 2, a gland 3, an actuator 4, a pipe joint 5, a packing 6, a gasket 7, a sleeve 8, a graphite sealing ring 9, a stepped hole 11, a water inlet hole 21, a water outlet hole 22, a water inlet cutting groove 31, a water outlet cutting groove 32 and a spiral cutting groove 81.
Detailed Description
As shown in fig. 1 and 2, a valve shaft cooling device comprises a valve shaft 2 and a shaft sleeve 1, wherein a stepped hole 11 is formed in the shaft sleeve 1, the valve shaft 2 is arranged in the stepped hole 11, a gasket 7 and a filler 6 are arranged in the thicker end of the stepped hole 11, a gland 3 for pressing the filler 6 on the gasket 7 is arranged on the shaft sleeve 1, a gap is formed between the thinner end of the stepped hole 11 and the valve shaft 2, a water inlet hole 21 and a water outlet hole 22 are formed in the valve shaft 2, and the lower end of the water inlet hole 21 and the lower end of the water outlet hole 22 are respectively communicated with the upper end and the lower end of; a water inlet cutting groove 31 and a water outlet cutting groove 32 are arranged in the gland 3, the water inlet cutting groove 31 and the water outlet cutting groove 32 are respectively communicated with the upper end of the water inlet hole 21 and the upper end of the water outlet hole 22, two pipe joints 5 respectively communicated with the water inlet cutting groove 31 and the water outlet cutting groove 32 are arranged on the gland 3, the upper end of the valve shaft 2 is connected with an actuator through a connecting sleeve, and the actuator drives the valve shaft 2 to rotate in the shaft sleeve 1.
The working process and the working principle of the invention are as follows: let in into water grooving 31 back by coupling 5 with the cooling water, the cooling water passes through inlet opening 21 in proper order, clearance and apopore 22 back, 5 discharges with the coupling that goes out water grooving 32 intercommunication, along with the refrigerated constantly pours into, form recirculated cooling water, utilize recirculated cooling water to walk 2 heats of valve shaft, in order to effectively cool off valve shaft 2, prevent that the production heat behind the high temperature medium of case contact from transmitting executor 4 to, and when the cooling water cooled off valve shaft 2, do not influence the normal rotation of valve shaft 2, cooling water pipeline can not twist the winding, cooling device simple structure, the maintenance is convenient with the manufacturing.
A sleeve 8 is arranged in a gap between the thinner end of the stepped hole 11 and the valve shaft 2, the sleeve 8 is sleeved outside the valve shaft 2, a spiral groove 81 is arranged outside the sleeve 8, a spiral channel is formed by the spiral groove 81 and the inner wall of the stepped hole 11, and the lower end of the water inlet hole 21 and the lower end of the water outlet hole 22 are respectively communicated with the upper end and the lower end of the spiral channel. The spiral channel can prolong the flow distance of cooling water, ensures that the cooling water can flow around the valve shaft 2 uniformly, enables the valve shaft 2 to be cooled uniformly, and improves the cooling effect of the valve shaft 2.
Graphite sealing rings 9 are arranged in the upper and lower side glands 3 of the water inlet cutting groove 31 and the water outlet cutting groove 32. This graphite sealing ring 9 can prevent into water grooving 31 and the mutual cluster water of play grooving 32, ensures that the heat of valve shaft 2 can be taken away smoothly by the cooling water.
A graphite sealing ring 9 is arranged between the lower end of the valve shaft 2 and the stepped hole 11. The graphite seal ring 9 can prevent cooling water from entering the valve body.
Claims (4)
1. The utility model provides a valve shaft cooling device, includes valve shaft (2) and axle sleeve (1), is equipped with shoulder hole (11) in axle sleeve (1), and valve shaft (2) set up in shoulder hole (11), are equipped with gasket (7) and filler (6) in the thick one end of shoulder hole (11), install gland (3) that are used for compressing tightly filler (6) on gasket (7) on axle sleeve (1), its characterized in that: a gap is formed between the thinner end of the stepped hole (11) and the valve shaft (2), a water inlet hole (21) and a water outlet hole (22) are formed in the valve shaft (2), and the lower end of the water inlet hole (21) and the lower end of the water outlet hole (22) are respectively communicated with the upper end and the lower end of the gap; the water inlet cutting groove (31) and the water outlet cutting groove (32) are arranged in the gland (3), the water inlet cutting groove (31) and the water outlet cutting groove (32) are respectively communicated with the upper end of the water inlet hole (21) and the upper end of the water outlet hole (22), and two pipe joints (5) which are respectively communicated with the water inlet cutting groove (31) and the water outlet cutting groove (32) are arranged on the gland (3).
2. A valve shaft cooling apparatus as defined in claim 1, wherein: a sleeve (8) is arranged in a gap between the thinner end of the stepped hole (11) and the valve shaft (2), the sleeve (8) is sleeved outside the valve shaft (2), a spiral groove (81) is arranged outside the sleeve (8), a spiral channel is formed by enclosing the spiral groove (81) and the inner wall of the stepped hole (11), and the lower end of the water inlet hole (21) and the lower end of the water outlet hole (22) are respectively communicated with the upper end and the lower end of the spiral channel.
3. A valve shaft cooling apparatus as defined in claim 1, wherein: graphite sealing rings (9) are arranged in the gland covers (3) on the upper side and the lower side of the water inlet cutting groove (31) and the water outlet cutting groove (32).
4. A valve shaft cooling apparatus as defined in claim 1, wherein: a graphite sealing ring (9) is arranged between the lower end of the valve shaft (2) and the stepped hole (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811569162.1A CN111350873A (en) | 2018-12-21 | 2018-12-21 | Valve shaft cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811569162.1A CN111350873A (en) | 2018-12-21 | 2018-12-21 | Valve shaft cooling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111350873A true CN111350873A (en) | 2020-06-30 |
Family
ID=71191858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811569162.1A Pending CN111350873A (en) | 2018-12-21 | 2018-12-21 | Valve shaft cooling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111350873A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115539655A (en) * | 2022-11-28 | 2022-12-30 | 南通源动太阳能科技有限公司 | Solar thermoelectric proportional regulating valve and use method thereof |
-
2018
- 2018-12-21 CN CN201811569162.1A patent/CN111350873A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115539655A (en) * | 2022-11-28 | 2022-12-30 | 南通源动太阳能科技有限公司 | Solar thermoelectric proportional regulating valve and use method thereof |
| CN115539655B (en) * | 2022-11-28 | 2023-03-10 | 南通源动太阳能科技有限公司 | Solar thermoelectric proportional regulating valve and use method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200630 |