CN101270929A - Expansion-compression integrated device for refrigerating system - Google Patents
Expansion-compression integrated device for refrigerating system Download PDFInfo
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- CN101270929A CN101270929A CNA2008100271597A CN200810027159A CN101270929A CN 101270929 A CN101270929 A CN 101270929A CN A2008100271597 A CNA2008100271597 A CN A2008100271597A CN 200810027159 A CN200810027159 A CN 200810027159A CN 101270929 A CN101270929 A CN 101270929A
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Abstract
The invention discloses an expansion compression integrated device used with a cooling system, which comprises an expansion chamber and a compression chamber; wherein the expansion chamber is provided with an expansion chamber entrance and an expansion chamber exit; the compression chamber is provided with a compression chamber entrance and a compression chamber exit; the expansion chamber is communicated with the compression chamber; the expansion chamber is provided with expansion blade inside; the compression chamber is provided with centrifugal blade inside. The device also comprises a rotary shaft, wherein one end of the rotary shaft is connected with the expansion blade, while the other end is connected with the centrifugal blade. The expansion process and the compression process are completed through the same mechanism without auxiliary expansion work utilization device; the expansion blade and the centrifugal blade are installed on the same shaft, thereby the powers of the two blades are completed coupled; both the expansion and the compression adopt velocity profile, and the entrances and exits of the compression chamber and the expansion chamber are not provided with valve plates and has no preset pressure, and is regulated through the cooling system.
Description
Technical field
The present invention relates to refrigeration system, especially a kind of expansion-compression integrated device that is applied to refrigeration system.
Background technology
During refrigeration system work, condensation under the cold-producing medium high pressure-temperature condition (or cooling) is evaporated under low-pressure low-temperature, in condenser (or cooler) outlet throttling arrangement is set usually, makes the high-pressure refrigerant decompression be low pressure refrigerant, enters the evaporator evaporation refrigeration then.But the irreversible loss of throttling has lowered performance of refrigerant systems coefficient COP, and along with the increase of high-low pressure pressure differential, irreversible loss increases, and coefficient of performance COP reduces more.Thereby have the people to adopt decompressor to replace throttling arrangement, and can reclaim expansion work, improve coefficient of performance COP, particularly with CO
2As the refrigeration system of cold-producing medium, because its high-low pressure pressure differential is bigger, expansion ratio is bigger, especially is fit to use decompressor and replaces throttling arrangement, helps to improve refrigeration performance like this.
The expansion work that has related in the prior art utilize technology generally will with the supporting use of compressor (has driven by motor in addition this compressor) itself, be that high-pressure refrigerant advances the decompressor acting, output mechanical power (for example rotating) is given compressor main shaft, and compressor main shaft is in motor and the acting of expansion work acting in conjunction lower compression cold-producing medium.For example, the most frequently used technical scheme is that decompressor separates with compressor, and both connect by axle, transmits mechanical power; Another technical scheme such as the patent No. are 02145524.4, and patent name is the patent of invention of " a kind of refrigeration system rotor compression-decompressor ", and this patent of invention is that decompressor and compressor are integrated, and utilizes expansion work drive compression machine.
Above-mentioned two kinds are utilized the scheme of expansion work all will change compressor itself, implemented certain difficulty, for first kind of technology, need in existing compressor, stretch out an axle and be connected with decompressor, there are some following problems: need change to existing compressor arrangement; Leakage of refrigerant appears easily at this shaft position; Compressor is wanted coaxial installation with decompressor, needs higher installation accuracy.
For second kind of technology, the advantage of decompressor and compressor all-in-one is a simplified structure, the convenient installation, but have following problem equally: needs redesign compressor, the coupling of decompressor and compressor is difficult to be grasped, particularly under the situation of variable working condition; New compressor arrangement complexity, parts are many, and reliability reduces, and needs the longer proving time; The decompressor of gases at high pressure in compressor inside expand into the gas-liquid mixture of low-pressure low-temperature, and gas-liquid mixture can cause the loss of refrigeration capacity of part in high temperature compressed machine internal flow.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art.Provide a kind of can be independent fully with compressor, thoroughly separate, need not original compressor is changed, and can be implemented in the side gases at high pressure acting of expanding, simultaneously merit is delivered to the expansion-compression integrated device that an other side is carried out the low-pressure gas compression.
For realizing above purpose, the present invention has taked following technical scheme: a kind of expansion-compression integrated device that is used for refrigeration system, include interconnective expansion chamber and compression chamber, this expansion chamber has the expansion chamber entrance and exit, this compression chamber has compression chamber inlet and compression chamber outlet, be provided with the expansion blade in the expansion chamber, be provided with centrifuge blade in the compression chamber; Also include rotating shaft, an end of this rotating shaft is connected with described expansion blade, and its other end is connected with described centrifuge blade.
Described expansion chamber is made of expansion chamber cover plate and expansion volute, and described expansion chamber cover plate is provided with nozzle, and the end opening of this nozzle in expansion chamber is towards described expansion blade, and its other end is connected with described expansion chamber inlet.
Described compression chamber is made of compression chamber cover plate and compression volute.This compression volute can adopt vortex shape, makes the supercharging of slowing down in volute of the cold-producing medium of at a high speed rotation, makes things convenient for it to derive from the compression chamber outlet.
Connect by axle sleeve between described expansion chamber and the compression chamber, an end of this axle sleeve is connected in the expansion volute, and its other end is connected in the compression volute, and described axle sleeve is passed in this rotating shaft.This axle sleeve not only plays the effect that connects expansion chamber and compression chamber, and can will make rotating shaft pass the contact portion maintenance sealing state in two chambeies, and introduced contaminants is difficult for entering from this part, also makes that the cold-producing medium in expansion chamber and the compression chamber is difficult for leakage simultaneously.
Be provided with pedestal at described expansion volute inwall, described expansion blade two ends activity up and down is fixed in this pedestal.Because the activity of expansion blade is fixed in the pedestal, when therefore entering high speed and high pressure gas when entering the mouth from expansion chamber, high-speed gas rushes at the expansion blade, the rotation of the blade that can promote more easily to expand wheel.
The present invention compared with prior art has following advantage: this expansion-compression integrated device and compressor are independent fully, thoroughly separate, and can adopt original compressor fully, needn't do any change to compressor; Expand and compression process is finished in same mechanism, need not additional expansion material gain device; Expand simultaneously blade and centrifuge blade is installed in the two ends of same rotating shaft, makes both be coupled fully by power; Velocity profile is all adopted in expansion and compression, the import and export of expansion chamber and compression chamber all do not have valve block, there is not pressure to set, regulate by refrigeration system, this expansion-compression integrated device can directly replace throttling arrangement commonly used, former compressor remains unchanged, and can improve 10 ~ 15% of systematic function coefficient COP.
Description of drawings
Fig. 1 is an expansion-compression integrated device structural representation of the present invention;
Fig. 2 is a compression chamber partial structurtes schematic diagram of the present invention;
Fig. 3 is the side sectional view of Fig. 2;
Description of reference numerals: 1, nozzle, 2, the expansion chamber cover plate, 3, the expansion volute, 4, compression volute, 5, the compression chamber cover plate, 6, centrifuge blade, 7, expansion blade, 8, axle sleeve, 9, rotating shaft, 10, pedestal, 11, expansion chamber inlet, 12, the expansion chamber outlet, 13, compression chamber inlet, 14, compression chamber outlet, 15, expansion chamber, 16, compression chamber.
The specific embodiment
Below in conjunction with the drawings and specific embodiments content of the present invention is described in further details.
Embodiment one
See also Fig. 1 to shown in Figure 3, Fig. 1 is an inflate compression integrated apparatus structural representation.A kind of inflate compression integrated apparatus that is used for refrigeration system, include expansion chamber 15 and compression chamber 16, this expansion chamber 15 has expansion chamber inlet 11 and outlet 2, expansion chamber is made of expansion chamber cover plate 2 and expansion volute 3, in expansion chamber 15, be provided with expansion blade 7, this compression chamber 16 has compression chamber inlet 13 and compression chamber outlet 14, is provided with centrifuge blade 6 in compression chamber.
Axle sleeve 8 couples together expansion chamber 15 and compression chamber 16, it specifically is to be welded to connect by axle sleeve 8 between expansion volute 3 and the compression volute 4, have rotating shaft 9 and pass axle sleeve 8, one end of this rotating shaft 9 closely is connected with the axis place of expansion blade 7, and can rotate synchronously, its other end closely is connected with centrifuge blade 6, and can rotate synchronously.
Expansion chamber cover plate 2 is provided with nozzle 1, the end opening of this nozzle 1 in expansion chamber 15 is towards expansion blade 7, and the inlet 11 of expansion chamber 15 is arranged at the other end of nozzle 1, gases at high pressure 11 flow to nozzle 1 demi-inflation and quicken from entering the mouth, high-speed gas rushes at expansion blade 7, promote 7 rotations of expansion blade, gas expand into evaporating pressure between expansion blade 7, further accelerate the rotation of expansion blade 7, the cold-producing medium of low pressure flows out the evaporimeter (this figure does not indicate) that enters into refrigeration system from expansion chamber outlet 12; Enter compression chamber inlet 13 through the vaporized gas cold-producing medium, rotating shaft 9 drives centrifuge blade 6 obtains at a high speed the gas refrigerant rotation, enter the 4 deceleration superchargings of compression volute then, flow out the air entry that enters refrigeration system compressor (this figure does not have to indicate) from compression chamber outlet 14 again.Be arranged on expansion blade in the expansion chamber 15 and conflict by pedestal 10 and be fixed in the inwall of expansion volute 3 in two ends about in the of 7, this pedestal is not that 7 welderings of expansion blade are died from the pedestal, and expansion blade 7 is that activity is fixed in this pedestal 10.
The present embodiment cold-producing medium adopts CO
2
Above-listed detailed description is at the specifying of possible embodiments of the present invention, and this embodiment is not in order to limiting claim of the present invention, and the equivalence that all the present invention of disengaging do is implemented or change, all should be contained in the claim of this case.
Claims (5)
1, a kind of expansion-compression integrated device that is used for refrigeration system, include interconnective expansion chamber and compression chamber, this expansion chamber has the expansion chamber entrance and exit, this compression chamber has compression chamber inlet and compression chamber outlet, it is characterized in that: be provided with the expansion blade in the expansion chamber, be provided with centrifuge blade in the compression chamber; Also include rotating shaft, an end of this rotating shaft is connected with described expansion blade, and its other end is connected with described centrifuge blade.
2, the expansion-compression integrated device that is used for refrigeration system according to claim 1, it is characterized in that: described expansion chamber is made of expansion chamber cover plate and expansion volute, described expansion chamber cover plate is provided with nozzle, the end opening of this nozzle in expansion chamber is towards described expansion blade, and its other end is connected with described expansion chamber inlet.
3, the expansion-compression integrated device that is used for refrigeration system according to claim 2 is characterized in that: described compression chamber is made of compression chamber cover plate and compression volute.
4, the expansion-compression integrated device that is used for refrigeration system according to claim 3, it is characterized in that: connect by axle sleeve between described expansion chamber and the compression chamber, one end of this axle sleeve is connected in the expansion volute, and its other end is connected in the compression volute, and described axle sleeve is passed in this rotating shaft.
5, according to arbitrary described expansion-compression integrated device that is used for refrigeration system in the claim 1 to 4, it is characterized in that: be provided with pedestal at described expansion volute inwall, described expansion blade two ends activity up and down is fixed in this pedestal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100271597A CN101270929A (en) | 2008-04-01 | 2008-04-01 | Expansion-compression integrated device for refrigerating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100271597A CN101270929A (en) | 2008-04-01 | 2008-04-01 | Expansion-compression integrated device for refrigerating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101270929A true CN101270929A (en) | 2008-09-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100271597A Pending CN101270929A (en) | 2008-04-01 | 2008-04-01 | Expansion-compression integrated device for refrigerating system |
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| CN (1) | CN101270929A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103423909A (en) * | 2013-09-12 | 2013-12-04 | 张周卫 | Spiral compression-expansion refrigerator |
| CN109154456A (en) * | 2016-05-17 | 2019-01-04 | 大金应用美国股份有限公司 | Turbine economizer for chiller system |
| CN110234940A (en) * | 2017-01-30 | 2019-09-13 | 比泽尔制冷设备有限公司 | Expansion cell for being encased in refrigerant circuit |
-
2008
- 2008-04-01 CN CNA2008100271597A patent/CN101270929A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103423909A (en) * | 2013-09-12 | 2013-12-04 | 张周卫 | Spiral compression-expansion refrigerator |
| CN109154456A (en) * | 2016-05-17 | 2019-01-04 | 大金应用美国股份有限公司 | Turbine economizer for chiller system |
| CN109154456B (en) * | 2016-05-17 | 2020-12-22 | 大金应用美国股份有限公司 | Turbine economizer for chiller system |
| CN110234940A (en) * | 2017-01-30 | 2019-09-13 | 比泽尔制冷设备有限公司 | Expansion cell for being encased in refrigerant circuit |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080924 |