CN106813424A - A kind of changeable flow throttling arrangement - Google Patents
A kind of changeable flow throttling arrangement Download PDFInfo
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- CN106813424A CN106813424A CN201510841995.9A CN201510841995A CN106813424A CN 106813424 A CN106813424 A CN 106813424A CN 201510841995 A CN201510841995 A CN 201510841995A CN 106813424 A CN106813424 A CN 106813424A
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- valve
- valve element
- valve seat
- location
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Safety Valves (AREA)
Abstract
For the throttling arrangement of the cooling cycle systems such as air-conditioning, heat pump, mainly it is made up of valve body, valve seat, valve element, valve pocket, spring element, location-plate.Valve element is contacted with valve base sealing during low voltage difference, keyhole formation fixed restriction in valve element；Valve element is separated with valve seat during High Pressure Difference, and the gap of valve element, valve element and valve base chamber forms variable restrictor.Switched by the throttling arrangement of the Bit andits control of the valve pocket side, realize bidirectional throttle function.By adjusting spring element, location-plate, it is possible to achieve different variable restrictors.Increasing screen pack can realize filtering.Only valve seat, valve element, valve pocket, spring element, the location-plate of side are can remove with cost-effective in the case of one-way throttle requirement.The present apparatus realizes fixed restriction using valve element, promotes valve element to be separated with valve seat using pressure difference and realizes variable restrictor, two-way independent throttle is realized using the movement of fluid forces valve pocket.The alternative capillary of the present apparatus, expansion valve, unloading valve, with raising efficiency, the effect of protection system safety.
Description
Technical field
The present invention relates to the throttling arrangement in a kind of cold and heat pump systems processed.
Background technology
, it is necessary to a kind of throttling arrangement realizes the control of flow in cold and heat pump systems processed；Prior art mainly realizes fixed restriction using capillary, valve element, or realizes variable restrictor using heating power expansion valve, electric expansion valve.Flow cannot be changed using capillary, valve core throttling, adaptability for working condition is poor；And flow can be changed using heating power expansion valve, electric expansion valve, but it is complex, it is relatively costly.
The content of the invention
Change the throttling arrangement of flow it is an object of the invention to provide a kind of, so as to improve the adaptability of cold and heat pump systems processed.Existing choke valve by valve seat 1 and valve element 2 as shown in figure 1, when fluid turns left flowing from the right side, control flow, valve element 3 to be separated with valve seat 4 without playing throttling action；When liquid flows from left to right, flow, valve element 1 and valve seat 2 is controlled to separate without playing throttling action by valve element 3 and valve seat 4.The restriction effect of this choke valve determines by valve element 1 and valve element 3, during cannot change restriction effect.
The purpose of the present invention is exactly the defect in order to overcome existing choke valve to change flow, there is provided a kind of choke valve of changeable flow.
Therefore, the present invention uses following technical scheme：Changeable flow choke valve, including valve body (1), left valve pocket (2), left valve seat (3), left valve element (4), left spring element (5), left location-plate (6), right location-plate (7), right spring element (8), right valve element (9), right valve seat (10), right valve pocket (11), as shown in Figure 2.
Left and right valve seat (3,10), left and right location-plate (6,7) is fixed on valve body by various methods；Left and right valve pocket (2,11) can be in the detent of valve body and valve base chamber slidably；Left and right valve element (4,9) can be with limited slip of being obstructed (applying certain initial pressure) in the valve seat of left and right to spring element as needed.
1st, low-load, when fluid turns left stream from the right side, under the differential pressure action of fluid, right valve pocket is promoted to withstand right valve seat to the left, and right valve pocket inner and outer surfaces are sealed with right valve element, valve body contact respectively；Low due to loading, fluid pressure difference is smaller, and the pressure differential of formation is not enough to push open spring element, so that right valve core outer surface is in close contact with right valve seat interior surface sealing, so fluid just can only flow through spring element, right location plate area by right spool bore, reach the center section of valve body；Fluid continues through left valve plate afterwards, a part of fluid flows through (valve seat outer surface journey plum blossom-shaped) from the gap between left valve seat and valve body, left valve pocket is promoted to be moved to the left, so as to form gap with left valve base chamber in left valve pocket, liquid continues to be flowed through from gap, flows through right valve pocket inner chamber outflow valve body；Another part fluid flows through spring element, left spool bore, left valve pocket inner chamber outflow valve body.In whole fluid flows through region, sectional area between right spool bore is designed to the minimum region of whole cross-sectional flow area, other parts sectional area is accumulated much larger than the partial cross section, so, the good right valve element pore size of precise control i.e. controllable flow rate is only needed, ability, efficiency is optimal.As shown in Figure 3.
2nd, high capacity, when fluid turns left stream from the right side, under the differential pressure action of fluid, right valve pocket is promoted to withstand right valve seat to the left, and right valve pocket inner and outer surfaces are sealed with right valve element, valve body contact respectively；Because load is high, fluid pressure difference is big, and right spring element and right valve element are promoted to the left together, so as to form gap with right valve seat interior surface in right valve core outer surface；So a fluid part flows through spring element, location-plate and reaches valve body middle part from right spool bore, and another part flows through spring element, location-plate and reaches valve body middle part from right valve element and the gap of right valve seat；Two parts are divided to flow out valve body as when the flowing of fluid is with low-load afterwards.Due to the presence of spring element; so that load is higher; fluid pressure difference is bigger; the distance for promoting right valve element to move is bigger, and the gap that valve element and valve base chamber are formed is also bigger, so as to increase flow system flow; mitigate system load; system pressure difference is reduced, raising ability, efficiency, the purpose of protection system reliability is reached.As shown in Figure 4.
3rd, low-load, when fluid flows from left to right, its principle is identical with 1, and simply the moving direction of flow direction, each movable parts is conversely, as shown in Figure 5.
4th, high capacity, when fluid flows from left to right, its principle is identical with 2, and simply the moving direction of flow direction, each movable parts is conversely, as shown in Figure 6.
5th, unidirectional mode, low-load.In some cases (such as single cold air-conditioning), fluid only needs to regularly be flowed to another from a direction, in this case, the present invention can be reduced to as shown in the figure, need to only retain original device left (or right) half department, meanwhile, valve seat can be changed to completely attach to sealing with valve body, corresponding valve pocket can so be removed.So, under low-load pattern, fluid flows from left to right, and because load low voltage difference is small, fluid fails spring element to promote, valve core outer surface is to contact sealing with valve seat interior surface, simultaneously because valve seat completely attaches to sealing with valve body, fluid can only flow through from valve element endoporus, flow through spring element, location plate area outflow valve body, other sections flowed through less than it valve element bore design can be so obtained, realized by valve element accurate flow control.Such as Fig. 7 institutes.
6th, unidirectional mode, high capacity.During high capacity, fluid flows from left to right, and because load is high, fluid pressure difference is big, and spring element and valve element are promoted to the right together, so as to form gap in valve core outer surface and valve seat interior surface；So a fluid part flows through spring element, location-plate and reaches valve body middle part from spool bore, and another part flows through spring element, location-plate and reaches valve body middle part from the gap of valve element and valve seat, and valve body is flowed out afterwards.Due to the presence of spring element; so that load is higher; fluid pressure difference is bigger; the distance for promoting right valve element to move is bigger, and the gap that valve element and valve base chamber are formed is also bigger, so as to increase flow system flow; mitigate system load; system pressure difference is reduced, raising ability, efficiency, the purpose of protection system reliability is reached.As shown in Figure 8.
7th, as additional function, screen pack can be increased in valve body and realizes filtering function
Brief description of the drawings
Fig. 1 is existing throttling spool mode
Fig. 2 is structural representation of the invention
Fig. 3 is of the invention under low voltage difference, fundamental diagram when medium turns left stream from the right side
Fig. 4 is of the invention under High Pressure Difference, fundamental diagram when medium turns left stream from the right side
Fig. 5 is of the invention under low voltage difference, fundamental diagram when medium flows from left to right
Fig. 6 is of the invention under High Pressure Difference, fundamental diagram when medium flows from left to right
Fig. 7 is the fundamental diagram when present invention is reduced to low voltage difference under one-way throttle pattern
Fig. 8 is the fundamental diagram when present invention is reduced to High Pressure Difference under one-way throttle pattern
Claims (1)
1. air-conditioning, refrigerator, air energy thermal water dispenser are used for（Including but not limited to）Deng the throttling arrangement of cold and heat pump systems processed, it is characterised in that keep the basic flow of system by valve element 4, valve element 9 during low voltage difference, promote spring element to cause that valve element is separated with valve seat during High Pressure Difference, flow-reduction pressure difference is increased by the gap of valve element and valve base chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510841995.9A CN106813424A (en) | 2015-11-28 | 2015-11-28 | A kind of changeable flow throttling arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510841995.9A CN106813424A (en) | 2015-11-28 | 2015-11-28 | A kind of changeable flow throttling arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106813424A true CN106813424A (en) | 2017-06-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510841995.9A Pending CN106813424A (en) | 2015-11-28 | 2015-11-28 | A kind of changeable flow throttling arrangement |
Country Status (1)
| Country | Link |
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| CN (1) | CN106813424A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111692782A (en) * | 2019-03-15 | 2020-09-22 | 浙江盾安禾田金属有限公司 | Two-way throttle valve |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08296929A (en) * | 1995-04-26 | 1996-11-12 | Tgk Co Ltd | Two-way constant pressure expansion valve |
| JP2008101733A (en) * | 2006-10-20 | 2008-05-01 | Saginomiya Seisakusho Inc | Differential pressure-regulating valve and air-conditioning equipment |
| CN201106967Y (en) * | 2007-11-13 | 2008-08-27 | 上海俊乐制冷自控元件有限公司 | Air conditioner refrigeration baffling component |
| CN201583070U (en) * | 2010-01-09 | 2010-09-15 | 新昌县丰亿电器有限公司 | Two-way throttle valve |
| JP2011257023A (en) * | 2010-06-07 | 2011-12-22 | Fuji Koki Corp | Expansion valve |
| CN202177265U (en) * | 2011-04-07 | 2012-03-28 | 宁波奥柯汽车空调有限公司 | Short tube throttle valve for air conditioner |
| CN203869389U (en) * | 2014-05-08 | 2014-10-08 | 美的集团股份有限公司 | Short-pipe throttle valve and air conditioner |
-
2015
- 2015-11-28 CN CN201510841995.9A patent/CN106813424A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08296929A (en) * | 1995-04-26 | 1996-11-12 | Tgk Co Ltd | Two-way constant pressure expansion valve |
| JP2008101733A (en) * | 2006-10-20 | 2008-05-01 | Saginomiya Seisakusho Inc | Differential pressure-regulating valve and air-conditioning equipment |
| CN201106967Y (en) * | 2007-11-13 | 2008-08-27 | 上海俊乐制冷自控元件有限公司 | Air conditioner refrigeration baffling component |
| CN201583070U (en) * | 2010-01-09 | 2010-09-15 | 新昌县丰亿电器有限公司 | Two-way throttle valve |
| JP2011257023A (en) * | 2010-06-07 | 2011-12-22 | Fuji Koki Corp | Expansion valve |
| CN202177265U (en) * | 2011-04-07 | 2012-03-28 | 宁波奥柯汽车空调有限公司 | Short tube throttle valve for air conditioner |
| CN203869389U (en) * | 2014-05-08 | 2014-10-08 | 美的集团股份有限公司 | Short-pipe throttle valve and air conditioner |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111692782A (en) * | 2019-03-15 | 2020-09-22 | 浙江盾安禾田金属有限公司 | Two-way throttle valve |
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Application publication date: 20170609 |