CN102011871B - Floating ball throttle valve - Google Patents
Floating ball throttle valve Download PDFInfo
- Publication number
- CN102011871B CN102011871B CN201010580883A CN201010580883A CN102011871B CN 102011871 B CN102011871 B CN 102011871B CN 201010580883 A CN201010580883 A CN 201010580883A CN 201010580883 A CN201010580883 A CN 201010580883A CN 102011871 B CN102011871 B CN 102011871B
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- pressure cavity
- perforate
- low pressure
- pressure chamber
- valve
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Abstract
The invention discloses a floating ball throttle valve, which is mainly composed of a high-pressure cavity, a low-pressure cavity, a support, a floater, a valve core, a valve rod, a pore plate, a loop bar and the like, wherein the low-pressure cavity is fixed at the bottom of the high-pressure cavity through the support; the upper and lower ends of the floater are respectively fixed on the lower end of the loop bar and on the upper end of the valve rod; the upper end of the loop bar is fixed on the inner top of the high-pressure cavity; the valve core is of a double valve core structure so that the influence of high and lower pressure fluids on the valve core is eliminated; and the opening of a valve is controlled through the liquid level in the high-pressure cavity, and the motion of the valve is smooth. The floating ball throttle valve has the advantages of simple structure and wide applicability, is relatively smooth in operation, is convenient for use, is applicable for various cooling working mediums, and provides a reliable throttle expansion technique for a complex medium.
Description
Technical field
The invention belongs to refrigerating field, be specifically related to one of vitals in a kind of refrigeration plant---throttle valve.
Background technique
Modern refrigeration technology is to grow up in mid-term in 19th century and later stage as a science.Refrigeration cycle four big parts are compressor, condenser, throttling arrangement and vaporizer.
Throttling arrangement as one of refrigeration cycle four big parts plays a part very crucial in system.The working principle of throttling is refrigeration working medium flow section sudden contraction when flowing through valve, and rate of flow of fluid is accelerated, and pressure descends, and the size that pressure descends depends on the ratio that flow section shrinks.The effect of throttling arrangement is with the saturated liquids under the condensing pressure in condenser or the cistern (or overcooled liquid), reduces to evaporating pressure and evaporating temperature after the throttling.
Existing throttle mechanism mainly contains manual throttle valve, heating power expansion valve, electric expansion valve and capillary tube etc.The manual throttle valve major part is replaced by self-choke mechanism at present; Heating power expansion valve is to utilize the variation of evaporator outlet refrigerant superheat degree to regulate liquid supply rate, single heating power expansion valve designs at the refrigerating capacity in a certain scope of a certain refrigeration agent and correspondence specially, can not a general heating power expansion valve for different refrigeration agent kinds, different refrigerating capacity, therefore must select the heating power expansion valve of certain model according to the size of refrigeration agent kind, evaporating temperature scope and the vaporizer heat load of refrigeration system; Electric expansion valve also is to utilize the variation of evaporator outlet refrigerant superheat degree to regulate liquid supply rate, degree of superheat control mainly is made up of electric expansion valve, pressure transducer, temperature transducer and controller, pressure transducer is passed to controller with evaporator outlet pressure, temperature transducer with the compressor air suction degree of superheat, controller with signal processing after output order valve is reached the position that needs, the same with heating power expansion valve, single electric expansion valve also has its Applicable scope; Therefore simple, the low price of capillary pipe structure, but because its aperture and length determine that refrigerant flow can not be regulated can not adapt to when the load variations of vaporizer well.
Summary of the invention
Goal of the invention: the objective of the invention is at the deficiencies in the prior art, a kind of ball float throttle valve applied widely is provided.
Technological scheme: ball float throttle valve of the present invention comprises high-pressure chamber, low pressure cavity and is fixed on the spool one on the valve rod, the double spool structure that spool two is formed by float with connecting successively;
Described high-pressure chamber is provided with three perforates, is respectively the high-pressure chamber perforate one that is used for high-pressure liquid and flows into, is used for the high-pressure chamber perforate two that low-pressure fluid flows out and is used for the high-pressure chamber perforate three that high-pressure chamber top pressurized gas are discharged;
Described low pressure cavity is fixed on described high-pressure chamber inner bottom part by bearing; Described low pressure cavity is provided with three perforates, is respectively the low pressure cavity perforate one that is used for low-pressure fluid and flows out, low pressure cavity perforate two and the low pressure cavity perforate three that is used to install orifice plate two and orifice plate one; Described low pressure cavity perforate one is corresponding with described high-pressure chamber perforate two, connects by pipeline; Described low pressure cavity perforate two and low pressure cavity perforate three are separately positioned on the corresponding position, top and bottom of described low pressure cavity;
In the described double spool structure, the upper end of described float be inserted in loop bar that the high-pressure chamber inner top is fixedlyed connected in, fixedly connected with the upper end of valve rod in the lower end of described float, described valve rod passes low pressure cavity perforate two and the low pressure cavity perforate three on the described low pressure cavity, the spool one and the spool two that are fixed on the described valve rod are corresponding with orifice plate two with described orifice plate one respectively, constitute two valves, the open degree of the rise and fall control valve by described float.
The setting of high-pressure chamber inside for convenience, described high-pressure chamber is made of two-part up and down, connects by flange between two-part.
What throttle valve of the present invention adopted is the double spool structure, makes the high low pressure fluid act on two active forces on the spool and cancels out each other, and so the open and close of valve are directly relevant with the liquid level in the high-pressure chamber; In the time of in high-pressure liquid does not enter high-pressure chamber, spool drops on the orifice plate, and just valve is closed; High-pressure liquid flows in the high-pressure chamber from high-pressure chamber perforate one, when reaching certain liquid level in the high-pressure chamber,, float rises because being subjected to the floating function meeting, thus the rising of drive spool, thereby with valve opening.High-pressure liquid in the high-pressure chamber enters in the low-pressure cavity from orifice plate one and orifice plate two, through becoming low-pressure fluid after the throttling, flows out whole throttling arrangement from low pressure cavity perforate one, high-pressure chamber perforate two.
The present invention compared with prior art, its beneficial effect is: 1, the present invention is in service in refrigeration system, realizes the switch of valve by the variation of liquid level, operation is mild; Compared to other throttle valve, the present invention is fit to various refrigerant systems, and simple in structure, applicability is wider, has created technical specifications in particular for the throttling expansion of mixed working fluid; 2, high-pressure chamber perforate one of the present invention links to each other with the condensation end of refrigeration system, and the refrigerant fluid that is condensed directly flows in the high-pressure chamber through pipeline, has solved the problem that refrigeration agent is piled up in the condenser effectively, has improved condensation efficiency.
Description of drawings
Fig. 1 is a ball float throttle valve structural representation of the present invention.
Fig. 2 is a ball float throttle valve working principle explanatory drawing of the present invention.
Embodiment
Below in conjunction with accompanying drawing, by a most preferred embodiment, technical solution of the present invention is elaborated, but protection scope of the present invention is not limited to described embodiment.
As shown in Figure 1, a kind of ball float throttle valve comprises high-pressure chamber 1, low pressure cavity 2 and is fixed on the spool 1 on the valve rod 6, the double spool structure that spool 25 is formed by float 9 with connecting successively;
Described high-pressure chamber 1 is made of two-part up and down, connects by flange between two-part; Described high-pressure chamber 1 is provided with three perforates, is respectively the high-pressure chamber perforate 1 that is used for high-pressure liquid and flows into, is used for the high-pressure chamber perforate 2 12 that low-pressure fluid flows out and is used for the high-pressure chamber perforate 3 13 that high-pressure chamber top pressurized gas are discharged;
Described low pressure cavity 2 is fixed on described high-pressure chamber 1 inner bottom part by bearing 3; Described low pressure cavity 2 is provided with three perforates, is respectively the low pressure cavity perforate 1 that is used for low-pressure fluid and flows out, low pressure cavity perforate 2 15 and the low pressure cavity perforate 3 16 that is used to install orifice plate 28 and orifice plate 1; Described low pressure cavity perforate 1 is corresponding with described high-pressure chamber perforate 2 12, connects by pipeline; Described low pressure cavity perforate 2 15 and low pressure cavity perforate 3 16 are separately positioned on the corresponding position, top and bottom of described low pressure cavity 2;
In the described double spool structure, the upper end of described float 9 be inserted in loop bar 10 that high-pressure chamber 1 inner top is fixedlyed connected in, fixedly connected with the upper end of valve rod 6 in the lower end of described float 9, described valve rod 6 passes low pressure cavity perforate 2 15 and the low pressure cavity perforate 3 16 on the described low pressure cavity 2, the spool 1 and the spool 25 that are fixed on the described valve rod 6 are corresponding with orifice plate 28 with described orifice plate 1 respectively, constitute two valves, the open degree of the rise and fall control valve by described float 9.
Concrete working principle is: in the time of in high-pressure liquid does not enter high-pressure chamber, spool drops on the orifice plate, and just valve is closed; High-pressure liquid flows in the high-pressure chamber from high-pressure chamber perforate one, when reaching certain liquid level in the high-pressure chamber,, float rises because being subjected to the floating function meeting, thus the rising of drive spool, thereby with valve opening; High-pressure liquid in the high-pressure chamber enters in the low-pressure cavity from orifice plate one and orifice plate two, through becoming low-pressure fluid after the throttling, flows out whole throttling arrangement from low pressure cavity perforate one, high-pressure chamber perforate two.What the present invention adopted is the double spool structure, makes the high low pressure fluid act on the active force that connects on the spool and cancels out each other.So the open and close of valve are directly relevant with the liquid level in the high-pressure chamber, working principle as shown in Figure 2, spool 1 is subjected to the interior high-pressure liquid of high-pressure chamber to its directed force F g1 that makes progress, the low-pressure fluid of low pressure cavity is to its downward directed force F d1, spool 25 is subjected to the interior high-pressure liquid of high-pressure chamber to its downward directed force F g2, and the low-pressure fluid of low pressure cavity is to its directed force F d2 that makes progress.Pressure equals pressure and multiply by active area.Be easy to just find out by Fig. 2: Fg1=Fg2, Fd1=Fd2, thus, the power that acts on spool one and the spool two is cancelled out each other.This part device that comprises spool 1, spool 25, valve rod 6, float 9 only is subjected to the active force that high-pressure liquid that overall downward gravity, the buoyancy that makes progress, valve rod 6 be subjected to makes progress.Because spool 1, spool 25 volumes are quite little, the density of float 9 is little, and therefore so the open and close of valve are directly relevant with buoyancy, and is just relevant with the liquid level in the high-pressure chamber.
As mentioned above, although represented and explained the present invention that with reference to specific preferred embodiment it shall not be construed as the restriction to the present invention self.Under the spirit and scope of the present invention prerequisite that does not break away from the claims definition, can make various variations in the form and details to it.
Claims (2)
1. ball float throttle valve is characterized in that: comprise high-pressure chamber (1), low pressure cavity (2) and be fixed on the spool one (4) on the valve rod (6), the double spool structure that spool two (5) is formed by float (9) with connecting successively;
Described high-pressure chamber (1) is provided with three perforates, is respectively the high-pressure chamber perforate one (11) that is used for high-pressure liquid and flows into, is used for high-pressure chamber perforate two (12) that low-pressure fluid flows out and the high-pressure chamber perforate three (13) that is used for the pressurized gas discharge of high-pressure chamber top;
Described low pressure cavity (2) is fixed on described high-pressure chamber (1) inner bottom part by bearing (3); Described low pressure cavity (2) is provided with three perforates, is respectively the low pressure cavity perforate one (14) that is used for low-pressure fluid and flows out, the low pressure cavity perforate three (16) that is used to that the low pressure cavity perforate two (15) of orifice plate two (8) is installed and is used to install orifice plate one (7); Described low pressure cavity perforate one (14) is corresponding with described high-pressure chamber perforate two (12), connects by pipeline; Described low pressure cavity perforate two (15) and low pressure cavity perforate three (16) are separately positioned on the corresponding position, top and bottom of described low pressure cavity (2);
In the described double spool structure, the upper end of described float (9) be inserted in loop bar (10) that high-pressure chamber (1) inner top is fixedlyed connected in, fixedly connected with the upper end of valve rod (6) in the lower end of described float (9), described valve rod (6) passes low pressure cavity perforate two (15) and the low pressure cavity perforate three (16) on the described low pressure cavity (2), the spool one (4) and the spool two (5) that are fixed on the described valve rod (6) are corresponding with orifice plate two (8) with described orifice plate one (7) respectively, constitute two valves, the open degree of the rise and fall control valve by described float (9).
2. ball float throttle valve according to claim 1 is characterized in that: described high-pressure chamber (1) is made of two-part up and down, connects by flange between two-part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010580883A CN102011871B (en) | 2010-12-09 | 2010-12-09 | Floating ball throttle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010580883A CN102011871B (en) | 2010-12-09 | 2010-12-09 | Floating ball throttle valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102011871A CN102011871A (en) | 2011-04-13 |
| CN102011871B true CN102011871B (en) | 2011-12-21 |
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ID=43842150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010580883A Expired - Fee Related CN102011871B (en) | 2010-12-09 | 2010-12-09 | Floating ball throttle valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102011871B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114793856A (en) * | 2022-05-27 | 2022-07-29 | 江苏省城镇与乡村规划设计院有限公司 | Rainwater regulation and storage irrigation device for sponge city and installation method thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2052171C1 (en) * | 1992-02-13 | 1996-01-10 | Акционерное общество открытого типа "УралВНИПИэнергопром" | Device for discharging condensate |
| CN2191827Y (en) * | 1993-10-21 | 1995-03-15 | 浙江大学 | In and out flow dynamic equilibrium device for container |
| CN2204014Y (en) * | 1994-05-19 | 1995-07-26 | 邹春年 | Valve for automatic control of liquid level |
| US6148852A (en) * | 1997-11-24 | 2000-11-21 | Osterman; David M. | Sump pit regulating valve |
| JP2007120129A (en) * | 2005-10-27 | 2007-05-17 | Norio Samejima | Device for automatically supplying liquid in liquid tank |
| CN1924424A (en) * | 2006-09-01 | 2007-03-07 | 济南海鹰机电制造有限公司 | Float type drainer |
| CN201917151U (en) * | 2010-12-09 | 2011-08-03 | 东南大学 | Floating ball throttle valve |
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2010
- 2010-12-09 CN CN201010580883A patent/CN102011871B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN102011871A (en) | 2011-04-13 |
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