CN1811237A - Self pressure difference balance valve - Google Patents
Self pressure difference balance valve Download PDFInfo
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- CN1811237A CN1811237A CN 200510200065 CN200510200065A CN1811237A CN 1811237 A CN1811237 A CN 1811237A CN 200510200065 CN200510200065 CN 200510200065 CN 200510200065 A CN200510200065 A CN 200510200065A CN 1811237 A CN1811237 A CN 1811237A
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- rotary spool
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Abstract
The self balance pressure difference valve includes a valve body, a rotary valve core and a valve cover. The valve body has a first port and a second port; the rotary valve core is installed inside the valve body and has the first axial flow passage and the second flow passage communicated with the first one and communicated with the second port while the rotary valve core is in the open state; and one pressure difference balancing chamber is set in the opposite side to the second port. The self balance pressure difference valve has compact structure, easy operation owing to the balanced pressure, less wear and long service life, and may be used widely in the pipeline for air, water, steam, petroleum, natural gas and other fluids.
Description
One, technical field:
The present invention relates to valve technology field, is a kind of self pressure difference balance valve.
Two, background technique:
Existing valve, as the ball valve of stopcock (cylindrical, vertebra type), gate valve, part model, advance, when there is High Pressure Difference in second port, must apply very big power could or close valve open; The valve of when running into major diameter, High Pressure Difference, may not opening, as run into urgency and may cause production accident.And since advance, there is High Pressure Difference in second port, makes the spool single load bearing of valve, valve be worn and had a strong impact on working life of valve.
Three, summary of the invention:
The invention provides a kind of self pressure difference balance valve, overcome the problem of above-mentioned existence, its easy to operate, long service life.
One of technological scheme of the present invention realizes by following measure: a kind of self pressure difference balance valve, it comprises valve body, rotary spool and valve gap, first port and second port are arranged on valve body, rotary spool is installed in the valve body by valve gap, there is first flow in axle center along rotary spool, on rotary spool, have at rotary spool and be in second runner that opening state can communicate with second port, and second runner and first flow link, at the pairing opposite side of second port pressure balance chamber is arranged, the external pressure equalizing orifice that is in closed condition energy UNICOM's second port and pressure balance chamber at rotary spool is arranged on the rotary spool.
Two of technological scheme of the present invention realizes by following measure: a kind of self pressure difference balance valve, it comprises valve body, rotary spool and valve gap, first port and second port are arranged on valve body, rotary spool is installed in the valve body by valve gap, there is first flow in axle center along rotary spool, on rotary spool, have at rotary spool and be in second runner that opening state can communicate with second port, and second runner and first flow link, at the pairing opposite side of second port pressure balance chamber is arranged, have on the rotary spool at rotary spool to be in opening state energy UNICOM's second runner or/and the interior pressure equalizing orifice of first flow and pressure balance chamber.
Three of technological scheme of the present invention realizes by following measure: a kind of self pressure difference balance valve, it comprises valve body, rotary spool and valve gap, first port and second port are arranged on valve body, rotary spool is installed in the valve body by valve gap, there is first flow in axle center along rotary spool, on rotary spool, have at rotary spool and be in second runner that opening state can communicate with second port, and second runner and first flow link, at the pairing opposite side of second port pressure balance chamber is arranged, the external pressure equalizing orifice that is in closed condition energy UNICOM's second port and pressure balance chamber at rotary spool is arranged on the rotary spool, have on the rotary spool at rotary spool to be in opening state energy UNICOM's second runner or/and the interior pressure equalizing orifice of first flow and pressure balance chamber.
Be further optimization and/or improvements below to the invention described above technological scheme:
Between above-mentioned rotary spool and valve body, sealing layer can be arranged.
On the pairing opposite side sealing layer of above-mentioned second port, the pressure balance chamber can be arranged.
In the pairing opposite side valve body of above-mentioned second port inboard pressure balance chamber can be arranged.
Above-mentioned rotary spool can cylindrical or taper type.
Top or bottom at above-mentioned valve body can be equipped with valve gap.
The area of pairing second port of above-mentioned rotary spool can equate with the area of the pairing pressure balance of rotary spool chamber.
Reasonable and compact in structure of the present invention, when advancing the second port pressure reduction when relatively large, adopt this self pressure difference balance valve, because of stress balance is easy to operate, thereby reduce or avoid in time to open or close the accident that is caused because of valve, and alleviated rotary spool and valve body or and sealing layer between wearing and tearing, thereby prolonged its working life, thereby can be widely applied on the fluid circuits such as air, water, water vapour, oil, rock gas.
Four, description of drawings:
Accompanying drawing 1 is looked the sectional structure schematic representation for the master of the embodiment of the invention 3 when opening state,
Accompanying drawing 2 is that the A-A of accompanying drawing 1 is to the sectional structure schematic representation;
The master in off position the time looks the sectional structure schematic representation for the embodiment of the invention 3 for accompanying drawing 3,
Accompanying drawing 4 is that the B-B of accompanying drawing 3 is to the sectional structure schematic representation;
Coding in the accompanying drawing is respectively: 1 is valve body, and 2 is rotary spool, and 3 is valve gap, and 4 is first port, and 5 is second port, and 6 is first flow, and 7 is second runner, and 8 is the pressure balance chamber, and 9 is the external pressure equalizing orifice, and 10 is interior pressure equalizing orifice, and 11 is sealing layer.
Five, embodiment:
The present invention is not subjected to following embodiment's restriction, can determine concrete mode of execution according to technological scheme of the present invention and actual conditions.
Below in conjunction with embodiment and accompanying drawing the present invention is further described:
Embodiment 1, this self pressure difference balance valve comprises valve body, rotary spool and valve gap, first port and second port are arranged on valve body, rotary spool is installed in the valve body by valve gap, there is first flow in axle center along rotary spool, on rotary spool, have at rotary spool and be in second runner that opening state can communicate with second port, and second runner and first flow link, at the pairing opposite side of second port pressure balance chamber is arranged, the external pressure equalizing orifice that is in closed condition energy UNICOM's second port and pressure balance chamber at rotary spool is arranged on the rotary spool.Embodiment 1 is specially adapted to as the bigger valve of the second port pressure reduction that often is in closed condition, because the external pressure equalizing orifice is under the identical pressure state second port and pressure balance chamber in the time of in off position, make rotary spool perpendicular to the stressed relative balance state that is in of its axis direction, simultaneously, first flow make rotary spool mainly be subjected to the power of axis direction because of being on the axle center of rotary spool, therefore, embodiment 1 is easy to open or close.
Embodiment 2, this self pressure difference balance valve comprises valve body, rotary spool and valve gap, first port and second port are arranged on valve body, rotary spool is installed in the valve body by valve gap, there is first flow in axle center along rotary spool, on rotary spool, have at rotary spool and be in second runner that opening state can communicate with second port, and second runner and first flow link, at the pairing opposite side of second port pressure balance chamber is arranged, have on the rotary spool at rotary spool to be in opening state energy UNICOM's second runner or/and the interior pressure equalizing orifice of first flow and pressure balance chamber.Embodiment 2 is specially adapted to advance the bigger valve of the second port pressure reduction as what often be in opening state, because the external pressure equalizing orifice makes second port, second runner or/and first flow is under the identical pressure state with the pressure balance chamber when opening state, make rotary spool 2 perpendicular to the stressed relative balance state that is in of its axis direction, therefore, embodiment 2 is easy to close or open.
Embodiment 3, shown in accompanying drawing 1 to 4, this self pressure difference balance valve comprises valve body 1, rotary spool 2 and valve gap 3, first port 4 and second port 5 are arranged on valve body 1, rotary spool 2 is installed in the valve body 1 by valve gap 3, there is first flow 6 in axle center along rotary spool 2, on rotary spool 2, have at rotary spool 2 and be in second runner 7 that opening state can communicate with second port 5, and second runner 7 links with first flow 6, at second port, 5 pairing opposite sides pressure balance chamber 8 is arranged, the external pressure equalizing orifice 9 that is in closed condition energy UNICOM second port 5 and pressure balance chamber 8 at rotary spool 2 is arranged on the rotary spool 2, have on the rotary spool 2 at rotary spool 2 to be in opening state energy UNICOM's second runner 7 or/and the interior pressure equalizing orifice 10 of first flow 6 and pressure balance chamber 8.Embodiment 3 is specially adapted to as advancing the bigger valve of the second port pressure reduction, because the external pressure equalizing orifice is under the identical pressure state second port and pressure balance chamber in the time of in off position, also owing to external pressure equalizing orifice when opening state makes second port, second runner or/and first flow is under the identical pressure state with the pressure balance chamber, make rotary spool 2 perpendicular to the stressed relative balance state that is in of its axis direction, simultaneously, first flow make rotary spool mainly be subjected to the power of axis direction because of being on the axle center of rotary spool, therefore, embodiment 3 not only is easy to unlatching but also is easy to close.
Can according to actual needs embodiment 1 to 3 be made further optimization and/or improvements:
Shown in accompanying drawing 1 to 4, between rotary spool 2 and the valve body 1 sealing layer 11 is arranged, can make the present invention have better sealability like this, thereby more be applicable to as the big especially valve that waits special state of inlet outlet pressure differential, and pressure balance chamber 8 is preferably arranged on second port, 5 pairing opposite side sealing layers 11; But in the present invention who does not have sealing layer, can the pressure balance chamber be arranged in the pairing opposite side valve body of second port inboard.Shown in accompanying drawing 1 and 3, rotary spool 2 can be taper type, but according to actual needs also can be cylindrical.Shown in accompanying drawing 1 and 3, at the top of valve body 1 valve gap 1 is installed, but can valve gap be installed in valve body bottom according to actual needs, and valve gap can be installed in valve body by various conventional mounting types, as: conventional screw thread mounting type or welded and installed mode or the clamping mounting type etc. that use.For alleviate rotary spool 2 and valve body 1 or and sealing layer 11 between wearing and tearing, the area of rotary spool 2 pairing second ports 5 preferably equates with the area of rotary spool pairing pressure balance chambers 82.
In the present invention: the running shaft outer end of rotary spool can be equipped with handle or handwheel or the conventional automatically controlled actuating device (as: motor etc.) that uses.
The present invention is in use: when first port 4 as import, first flow 6 when entering runner, second port 5 just as outlet, second runner 7 just as the runner of coming in and going out; Perhaps, when the 4 conduct outlets of first port, when runners are come in and gone out in first flow 6 conducts, second port 5 just enters runner as import, second runner 7 with regard to conduct; Determine according to actual needs.
Above technical characteristics has constituted several mode of executions of the present invention, and it has stronger adaptability and preferable implementation result, can increase and decrease non-essential technical characteristics according to actual needs, satisfies the demand of different situations.
Claims (10)
1.1, a kind of self pressure difference balance valve, it is characterized in that comprising valve body, rotary spool and valve gap, first port and second port are arranged on valve body, rotary spool is installed in the valve body by valve gap, there is first flow in axle center along rotary spool, on rotary spool, have at rotary spool and be in second runner that opening state can communicate with second port, and second runner and first flow link, at the pairing opposite side of second port pressure balance chamber is arranged, the external pressure equalizing orifice that is in closed condition energy UNICOM's second port and pressure balance chamber at rotary spool is arranged on the rotary spool.
2.2, a kind of self pressure difference balance valve, it is characterized in that comprising valve body, rotary spool and valve gap, first port and second port are arranged on valve body, rotary spool is installed in the valve body by valve gap, there is first flow in axle center along rotary spool, on rotary spool, have at rotary spool and be in second runner that opening state can communicate with second port, and second runner and first flow link, at the pairing opposite side of second port pressure balance chamber is arranged, have on the rotary spool at rotary spool to be in opening state energy UNICOM's second runner or/and the interior pressure equalizing orifice of first flow and pressure balance chamber.
3.3, a kind of self pressure difference balance valve, it is characterized in that comprising valve body, rotary spool and valve gap, first port and second port are arranged on valve body, rotary spool is installed in the valve body by valve gap, there is first flow in axle center along rotary spool, on rotary spool, have at rotary spool and be in second runner that opening state can communicate with second port, and second runner and first flow link, at the pairing opposite side of second port pressure balance chamber is arranged, the external pressure equalizing orifice that is in closed condition energy UNICOM's second port and pressure balance chamber at rotary spool is arranged on the rotary spool, have on the rotary spool at rotary spool to be in opening state energy UNICOM's second runner or/and the interior pressure equalizing orifice of first flow and pressure balance chamber.
4.4, according to claim 1 or 2 or 3 described self pressure difference balance valves, it is characterized in that between rotary spool and the valve body sealing layer being arranged.
5.5, self pressure difference balance valve according to claim 4, it is characterized in that on the pairing opposite side sealing layer of second port pressure balance chamber being arranged.
6.6, according to claim 1 or 2 or 3 described self pressure difference balance valves, it is characterized in that there is the pressure balance chamber the pairing opposite side valve body of second port inboard.
7.7, according to claim 1 or 2 or 3 described self pressure difference balance valves, it is characterized in that the cylindrical or taper type of rotary spool; Or/and the top or the bottom of valve body are equipped with valve gap; Or/and the area of pairing second port of rotary spool equates with the area of the pairing pressure balance of rotary spool chamber.
8.8, self pressure difference balance valve according to claim 4, it is characterized in that the cylindrical or taper type of rotary spool; The top or the bottom of valve body are equipped with valve gap; Or/and the area of pairing second port of rotary spool equates with the area of the pairing pressure balance of rotary spool chamber.
9.9, self pressure difference balance valve according to claim 5, it is characterized in that the cylindrical or taper type of rotary spool; The top or the bottom of valve body are equipped with valve gap; Or/and the area of pairing second port of rotary spool equates with the area of the pairing pressure balance of rotary spool chamber.
10.10, self pressure difference balance valve according to claim 6, it is characterized in that the top of valve body or bottom are equipped with valve gap; Or/and the area of pairing second port of rotary spool equates with the area of the pairing pressure balance of rotary spool chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510200065 CN1811237A (en) | 2005-01-28 | 2005-01-28 | Self pressure difference balance valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510200065 CN1811237A (en) | 2005-01-28 | 2005-01-28 | Self pressure difference balance valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1811237A true CN1811237A (en) | 2006-08-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510200065 Pending CN1811237A (en) | 2005-01-28 | 2005-01-28 | Self pressure difference balance valve |
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| CN (1) | CN1811237A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105805335A (en) * | 2016-05-24 | 2016-07-27 | 浙江金龙自控设备有限公司 | Second-grade grinding wheel carried cock plug angle type flow self-control instrument |
-
2005
- 2005-01-28 CN CN 200510200065 patent/CN1811237A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105805335A (en) * | 2016-05-24 | 2016-07-27 | 浙江金龙自控设备有限公司 | Second-grade grinding wheel carried cock plug angle type flow self-control instrument |
| CN105805335B (en) * | 2016-05-24 | 2018-07-10 | 浙江金龙自控设备有限公司 | Secondary grinding wheel belt cock angie type automatic flow controller |
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