CN111120703A - Balanced case structure of area water conservancy diversion for telescopic governing valve and balanced valve thereof - Google Patents
Balanced case structure of area water conservancy diversion for telescopic governing valve and balanced valve thereof Download PDFInfo
- Publication number
- CN111120703A CN111120703A CN201811292714.9A CN201811292714A CN111120703A CN 111120703 A CN111120703 A CN 111120703A CN 201811292714 A CN201811292714 A CN 201811292714A CN 111120703 A CN111120703 A CN 111120703A
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- CN
- China
- Prior art keywords
- valve
- sleeve
- balanced
- valve core
- flow guide
- 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.)
- 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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
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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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
- F16K47/023—Means in valves for absorbing fluid energy for preventing water-hammer or noise for preventing water-hammer, e.g. damping of the valve movement
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention belongs to valves, and particularly relates to a balance valve core structure with flow guide for a sleeve type adjusting valve and a balance valve thereof. A balanced valve core structure with flow guide for sleeve-type regulating valve is composed of a sleeve barrel with a cylindrical valve core, a conic flow guide cover with a conic cross section in the cavity under valve core, a flow window on the side wall of flow guide cover, and a valve rod on the valve core. The invention has the following effects: this patent take balanced case structure of water conservancy diversion is through being in the same place case and kuppe installation, forms comparatively reasonable runner form when the valve is opened to realize the reinforcing of valve circulation ability, and working medium's movement track accords with fluid motion law more, effectively reduces the vortex. The adjustable sleeve type regulating valve has the advantages that the structure is simple and reliable, most structural designs of the conventional sleeve type regulating valve are kept, and only local structural optimization is needed.
Description
Technical Field
The invention belongs to valves, and particularly relates to a balance valve core structure with flow guide for a sleeve type adjusting valve and a balance valve thereof.
Background
Sleeve type regulating valves, the technology of which is quite mature, are one of the most mainstream regulating valve products in the market at present. Spool-type trim valve trim typically includes: the valve rod controls the valve core to move in the sleeve in two directions along the central axis of the sleeve, so that the function of controlling the flow is achieved.
Due to the unique design structure of the sleeve type regulating valve core, when the valve is in an opening state, a working medium easily forms a large vortex in a channel space formed by the valve core and the sleeve, the flow capacity of the valve is reduced, additional pressure loss is caused to a certain degree, and under the specific working condition, the development of the vortex easily causes the phenomena of vibration, noise and the like of the valve, influences the service life of the valve and is not beneficial to workers to carry out related operation under the environment of valve operation.
Disclosure of Invention
The invention aims to provide a balanced valve core structure with flow guide for a sleeve type regulating valve, which is a novel structure for improving the flow capacity of the sleeve type regulating valve and reducing vortex.
The technical scheme of the invention is as follows: a balanced valve core structure with flow guide for sleeve-type regulating valve is composed of a sleeve barrel with a cylindrical valve core, a conic flow guide cover with a conic cross section in the cavity under valve core, a flow window on the side wall of flow guide cover, and a valve rod on the valve core.
The balanced valve core structure with the flow guide function for the sleeve type adjusting valve is characterized in that the sleeve is arranged on the valve seat of the valve body.
The balanced valve core structure with the flow guide for the sleeve-type adjusting valve is characterized in that the valve seat is provided with the baffle, the baffle is provided with the through hole, and the size of the through hole is matched with the size of the conical cross section at the top end of the flow guide cover.
A balanced valve with flow guide for sleeve-type regulating valve features that its valve core structure is the one described above.
The invention has the following effects: this patent take balanced case structure of water conservancy diversion is through being in the same place case and kuppe installation, forms comparatively reasonable runner form when the valve is opened to realize the reinforcing of valve circulation ability, and working medium's movement track accords with fluid motion law more, effectively reduces the vortex. The adjustable sleeve type regulating valve has the advantages that the structure is simple and reliable, most structural designs of the conventional sleeve type regulating valve are kept, and only local structural optimization is needed.
When the valve core contacts with the valve seat, the valve is in a closed state. When the valve core is separated from the valve seat, the valve core is opened to the maximum stroke position, and the stroke interval is the working range of the sleeve type regulating valve.
The guide cover is arranged at the lower part of the valve core, and the motion trail of the working medium can better accord with the fluid motion law through the combined mode that the guide cover and the valve core are arranged together. Compared with the conventional sleeve type regulating valve, the flow capacity of the original valve can be effectively improved, and the vortex is reduced.
Drawings
FIG. 1 is a schematic view of a closed position of a balanced valve core structure with flow guide for a sleeve type adjusting valve;
FIG. 2 is a schematic view of an open position of a balanced valve core structure with flow guidance for a sleeve-type adjusting valve;
FIG. 3 is a schematic diagram of a fluid movement locus of a balance valve with flow guide for the sleeve-type adjusting valve;
FIG. 4 is a schematic diagram of a fluid movement trace of a conventional sleeve-type regulator valve.
In the figure: 1, a valve body; 2, valve seats; 3, sleeving a sleeve; 4, a flow guide sleeve; 5, a valve core; 6, a valve rod; 7 flow-through window.
Detailed Description
A balanced valve core structure with flow guide for a sleeve type adjusting valve comprises a sleeve 3 arranged in a valve body 1, a barrel-shaped valve core 5 is arranged in the sleeve 3, a flow guide cover 4 with a conical section is arranged in a cavity below the valve core 5, a flow through window 7 for liquid to flow is arranged on the side wall of the flow guide cover 4, and a valve rod 6 is arranged at the upper end of the valve core 5.
The sleeve 3 is arranged on the valve seat 2 of the valve body 1.
The valve seat 2 is provided with a baffle plate, the baffle plate is provided with a through hole, and the size of the through hole is matched with the size of the conical cross section at the top end of the air guide sleeve 4.
The effect of this application case structure mainly focuses on: when the valve is in the open state, liquid enters through the through hole in the valve seat 2. When the flowing liquid meets the conical guide cover 4, the liquid is pushed to the flow-through window 7, so that the liquid can rapidly and directly pass through the valve. In contrast, if the conical air guide sleeve 4 is not provided, in addition to part of liquid can pass through the flow window 7, part of liquid can form vortex in the cavity of the valve core 5 to block other liquid from passing through the valve, and the flow rate of the valve is reduced.
Claims (4)
1. The utility model provides a sleeve-type is balanced case structure of area water conservancy diversion for governing valve which characterized in that: the valve comprises a sleeve (3) arranged inside a valve body (1), a barrel-shaped valve core (5) is arranged inside the sleeve (3), a flow guide cover (4) with a conical section is arranged in a cavity below the valve core (5), a flow window (7) for liquid to flow is arranged on the side wall of the flow guide cover (4), and a valve rod (6) is arranged at the upper end of the valve core (5).
2. The balanced valve core structure with flow guide for the sleeve-type adjusting valve according to claim 1, characterized in that: the sleeve (3) is arranged on the valve seat (2) of the valve body (1).
3. The balanced valve core structure with flow guide for sleeve-type adjusting valve according to claim 2, characterized in that: the valve seat (2) is provided with a baffle plate, the baffle plate is provided with a through hole, and the size of the through hole is matched with the size of the conical cross section at the top end of the air guide sleeve (4).
4. A balanced valve with flow guide for sleeve-type regulating valve, characterized in that the valve core structure of the valve is the valve core structure as claimed in claim 1, 2 or 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811292714.9A CN111120703A (en) | 2018-11-01 | 2018-11-01 | Balanced case structure of area water conservancy diversion for telescopic governing valve and balanced valve thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811292714.9A CN111120703A (en) | 2018-11-01 | 2018-11-01 | Balanced case structure of area water conservancy diversion for telescopic governing valve and balanced valve thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111120703A true CN111120703A (en) | 2020-05-08 |
Family
ID=70494627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811292714.9A Pending CN111120703A (en) | 2018-11-01 | 2018-11-01 | Balanced case structure of area water conservancy diversion for telescopic governing valve and balanced valve thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111120703A (en) |
-
2018
- 2018-11-01 CN CN201811292714.9A patent/CN111120703A/en active Pending
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| SE01 | Entry into force of request for substantive examination | ||
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