CN2593127Y - Adjustable control device for rolling rotor decompressor - Google Patents
Adjustable control device for rolling rotor decompressor Download PDFInfo
- Publication number
- CN2593127Y CN2593127Y CN 02289064 CN02289064U CN2593127Y CN 2593127 Y CN2593127 Y CN 2593127Y CN 02289064 CN02289064 CN 02289064 CN 02289064 U CN02289064 U CN 02289064U CN 2593127 Y CN2593127 Y CN 2593127Y
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- CN
- China
- Prior art keywords
- rolling
- end cap
- control panel
- groove
- control plate
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to an adjustable control device in a rolling rotor expansion engine, which is provided with a control plate, an end cover, a sealing pad, an eccentric shaft, a main shaft, a rolling piston, etc., wherein the control plate is arranged between the end cover and a rolling piston on a fluid inlet; an excircle of the control plate is coincident with an inner circle of a cylinder and is tangential with a round hole on the end cover; a groove is arranged on the excircle of the control plate which simultaneously rotates following the eccentric shaft; when the groove which rotates onto the control plate is coincident with the round hole on the end cover, fluid flows into an expansion cavity between the rolling piston and the cylinder; when the groove is not coincident with the round hole on the end cover, the fluid inlet is closed. The utility model adopts a mechanical control method. The adjustable control device in the rolling rotor expansion engine has the advantages that the position of the groove of the control plate can be adjusted in advance according to actual demands to control the open cycle and the close cycle of the fluid inlet so as to adjust the expansion ratio of the rolling rotor expansion engine. The utility model has the characteristics of simple structure, high pressure resistance, stabilization and reliability, and can be ideally used for replacing a throttling device in a vapor compression type refrigeration air-conditioning system.
Description
Technical field
The utility model belongs to the adjustable control means in refrigeration air-conditioner or the heating plant equipment.
Background technology
Rolling-rotor decompressor, major function are the choke valves that can replace in the steam compression type refrigeration air-conditioning system, not only can reduce the restriction loss of system, and can increase refrigerating capacity.Aspect the fluid intake control of rolling-rotor decompressor, generally adopt mechanical type control and two kinds of schemes of electromagnetic type control at present.The basic principle of mechanical type control scheme is control and the stroke of the coaxial cam of camshaft, still can not carry out the adjusting of expansion ratio according to operating mode.The principle of electromagnetic type control scheme is to adopt high-frequency electromagnetic valve, is characterized in the time that can open according to the regulating working conditions fluid intake, thereby regulates expansion ratio.This control need be provided with microcontroller, according to the expansion ratio of condition calculating decompressor, calculates fluid intake according to the volumeter of working chamber again and should close when rolling piston turns over much angles, thereby calculate the reciprocating rule of valve rod.When the design velocity of rotation of rolling-rotor decompressor is n=1500rpm, the work response frequency of electromagnetic controller should 20,000 times/more than the s.Because the inlet fluid of rolling-rotor expansion machinery is a high-pressure fluid, in order to reduce flow losses, its inlet diameter can not be too little.Not only cost is very high so manufacture and design the electromagnetic type control device of the response of high pressure resistant, high-frequency, big caliber, reliable in action, and difficulty comparatively.So developing a kind of novel fluid intake that is used for the rolling-rotor expansion machinery adjustable (expansion ratio) control device at present pushes away to primarily.
Summary of the invention
The purpose of this utility model provides a kind of high pressure resistant, the machine control unit that can regulate expansion ratio at the fluid intake of rolling-rotor decompressor.
Structural principle of the present utility model as shown in drawings.Adjustable control means in the rolling-rotor decompressor has: control panel (1), end cap (2), sealing gasket (3), camshaft (4), main shaft (5), rolling piston (6) etc.Fluid intake place at decompressor, control panel (1) is loaded between end cap (2) and the rolling piston (6), on end cap (2), have circular hole vertically, the cylindrical of control panel (1) overlaps with the interior circle of cylinder (8) and is tangent with the circular hole of end cap (2), control panel (1) and the coaxial installation of camshaft (4).Control panel (1) connects with main shaft (5) by axle key, makes that the camshaft (4) on control panel (1) and the main shaft (5) rotates simultaneously.Circular hole on the end cap (2) is in vertical center line and is offset 10 °～15 ° clockwise.Because the fluid intake of rolling-rotor decompressor is in hyperbaric environment, leak in order to prevent the high-pressure fluid between end cap (2) and cylinder (8), between end cap (2) and cylinder (8), high pressure sealing pad (3) is housed.High pressure sealing pad (3) can adopt materials such as polytetrafluoroethylene (PTFE) to make.Having 4 on control panel (1) excircle, to be spaced apart 11.25 °, span also be 11.25 °, the degree of depth are even variation from 4mm to 1mm groove.The number of groove can decide according to actual condition and expansion ratio adjustable range, and promptly the size of grooved area accounts for the percentage of its control panel angle.The scope that for example needs bigger its expansion ratio of adjusting, then the shared angular regions of groove part is also big.Control panel (1) rotates simultaneously with camshaft (4), and when the hole, garden on groove on forwarding control panel to and the end cap (2) coincided, promptly the cylindrical of the cylindrical in hole and control panel was tangent, and fluid flows into the expansion chamber between rolling piston (6) and the cylinder (8).Slide plate (7) moves up and down along with the rotation of rolling piston (6), the fluid acting.When groove when hole, garden on the end cap (2) does not overlap, fluid intake is closed.Along with the variation of operating mode, when the expansion ratio that needs the rolling-rotor decompressor increased, the control panel (1) of A in view that can turn clockwise reduced the groove angular regions relative with expansion chamber.When the expansion ratio that needs the rolling-rotor decompressor reduces, then be rotated counterclockwise control panel (1), the groove angular regions relative with expansion chamber increased.
What the utility model adopted is a kind of mechanical type control method.Its advantage is can be according to the actual condition needs groove location of dial in advance, the cycle of control fluid intake folding, thereby the expansion ratio of regulating the rolling-rotor decompressor.Have simple in structure, high pressure resistant, reliable and stable characteristics, can the desirable throttling arrangement that substitutes in the steam compression type refrigeration air-conditioning system.
Description of drawings
Accompanying drawing is a structural principle schematic diagram of the present utility model.Among the figure: 1 is control panel, and 2 is end cap, and 3 are the high pressure sealing pad, and 4 is camshaft, and 5 is main shaft, and 6 is rolling piston, and 7 is slide plate, and 8 is cylinder.Empty arrow is the fluid intake place.
The specific embodiment
At first rolling piston (6) is loaded on the camshaft (4) during installation, slide plate (7) is embedded in the cylinder (8), will be embedded with the cylinder and the tangent installation of rolling piston (6) of slide plate again.Control panel (1) installs on the main shaft (5), near camshaft (4) and rolling piston (6) and coaxial, end cap (2) passes main shaft and is close to high pressure sealing pad (3), sealing gasket is fastened between cylinder (8) and the end cap (2), according to the groove location on the expansion ratio adjustment control panel (1) of required decompressor.Adjust the position of end cap (2), make circular hole on the end cap (2) be arranged in accompanying drawing and depart from clockwise 10 °～15 ° position to seeing with vertical center line from A.5 millimeters in the aperture of the last axial circular hole of end cap (2).
Claims (4)
1. adjustable control means that is used for the rolling-rotor decompressor, has control panel (1), end cap (2), sealing gasket (3), camshaft (4), main shaft (5) etc., it is characterized in that control panel (1) is loaded between end cap (2) and the rolling piston (6), on end cap (2), have circular hole vertically, the cylindrical of control panel (1) overlaps with the interior circle of cylinder (8) and is tangent with the circular hole of end cap (2), control panel (1) connects with main shaft (5) by axle key with the coaxial installation of camshaft (4), control panel (1), between end cap (2) and the cylinder (8) high pressure sealing pad (3) is housed.
2. according to the described a kind of adjustable control means that is used for the rolling-rotor decompressor of claim 1, it is characterized in that having on the excircle of described control panel (1) 4, to be spaced apart 11.25 °, span also be 11.25 °, the degree of depth are even variation from 4mm to 1mm groove.
3. according to claim 1 or 2 described a kind of adjustable control means that are used for the rolling-rotor decompressor, it is characterized in that the circular hole on the described end cap (2) is in and 10 °～15 ° of the clockwise skews of vertical center line.
4. according to the described a kind of adjustable control means that is used for the rolling-rotor decompressor of claim 1, it is characterized in that described high pressure sealing pad (3) can adopt materials such as polytetrafluoroethylene (PTFE) to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02289064 CN2593127Y (en) | 2002-12-05 | 2002-12-05 | Adjustable control device for rolling rotor decompressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02289064 CN2593127Y (en) | 2002-12-05 | 2002-12-05 | Adjustable control device for rolling rotor decompressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2593127Y true CN2593127Y (en) | 2003-12-17 |
Family
ID=33748719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02289064 Expired - Fee Related CN2593127Y (en) | 2002-12-05 | 2002-12-05 | Adjustable control device for rolling rotor decompressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2593127Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101769166B (en) * | 2008-12-30 | 2013-04-03 | 上海日立电器有限公司 | Two-stage rolling rotor-type expander |
| CN105509360A (en) * | 2016-03-04 | 2016-04-20 | 河北科技大学 | Novel efficient energy-saving expander for carbon dioxide and heat pump refrigeration technologies |
| CN107642380A (en) * | 2017-09-27 | 2018-01-30 | 重庆华稷新能源科技有限公司 | A kind of slipping sheet expander |
-
2002
- 2002-12-05 CN CN 02289064 patent/CN2593127Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101769166B (en) * | 2008-12-30 | 2013-04-03 | 上海日立电器有限公司 | Two-stage rolling rotor-type expander |
| CN105509360A (en) * | 2016-03-04 | 2016-04-20 | 河北科技大学 | Novel efficient energy-saving expander for carbon dioxide and heat pump refrigeration technologies |
| CN105509360B (en) * | 2016-03-04 | 2018-04-03 | 河北科技大学 | A kind of energy-conservation expanding machine for carbon dioxide heat-pump Refrigeration Technique |
| CN107642380A (en) * | 2017-09-27 | 2018-01-30 | 重庆华稷新能源科技有限公司 | A kind of slipping sheet expander |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |