CN104896815A - Double-centrifugation separation flash evaporator - Google Patents
Double-centrifugation separation flash evaporator Download PDFInfo
- Publication number
- CN104896815A CN104896815A CN201510299901.XA CN201510299901A CN104896815A CN 104896815 A CN104896815 A CN 104896815A CN 201510299901 A CN201510299901 A CN 201510299901A CN 104896815 A CN104896815 A CN 104896815A
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- China
- Prior art keywords
- pipe
- cylindrical shell
- straight section
- barrel
- refrigerant
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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
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
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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
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/02—Centrifugal separation of gas, liquid or oil
Abstract
The invention provides a double-centrifugation separation flash evaporator which comprises a barrel and a heat exchange pipe. A coolant storage zone is enclosed by the lower portion and a bottom surface of the barrel, the heat exchange pipe is inserted into the upper portion of the barrel and comprises a straight section of a polished pipe and a threaded section, the threaded section sleeves the outer side of the lower end of the straight section of the polished pipe, the straight section of the polished pipe is exposed out of the top of the barrel, a close-up portion is arranged on the outer side wall of the straight section of the polished pipe and the top of the barrel, a first coolant inlet pipe is led out of a gap between the straight section of the polished pipe and the upper portion of the barrel, a gas-phase outlet pipe is led out of the position, which is exposed out of the barrel, of the straight section of the polished pipe, a second coolant outlet pipe is arranged in the center of the bottom surface of the barrel, an inlet end of the second coolant outlet pipe faces downwardly, a pipe body of the second coolant outlet pipe is bent, then is turned over and upwardly extends, and an outlet end of the second coolant outlet pipe, a pipe orifice of the first coolant inlet pipe and a pipe orifice of the gas-phase outlet pipe face upwardly. The double-centrifugation separation flash evaporator has the advantages that gas can be thoroughly separated from liquid, refrigerants which flow into compressors are assuredly free of liquid, and accordingly efficient, energy-saving, reliable and stable running of integral systems can be guaranteed.
Description
Technical field
The present invention relates to the technical field of air injection enthalpy-increasing air-conditioning or system, particularly relate to a kind of two centrifugation flash vessel.
Background technology
Air injection enthalpy-increasing high efficiency energy saving air conditioner or system, need to utilize flash vessel to carry out gas-liquid separation thoroughly, to ensure that the cold-producing medium that compressor air injection enthalpy-increasing mouth enters does not comprise liquid state.Therefore, flash vessel is as the vitals of air injection enthalpy-increasing high-efficiency energy-saving air conditioning system, and the quality of its design produces important impact to the efficiency of whole system and reliability service.But still there is the halfway problem of gas-liquid separation in existing flash vessel.
Summary of the invention
The object of the invention is to propose a kind of two centrifugation flash vessel, for gas, liquid two-phase in thorough separation flash evaporator.
In order to solve the problems of the technologies described above, technical scheme of the present invention is as follows:
A kind of two centrifugation flash vessel, comprise cylindrical shell and heat exchanger tube, the bottom of described cylindrical shell and bottom face surround refrigerant memory block, described heat exchanger tube is inserted on top, this heat exchanger tube comprises light pipe straight section and is socketed in the thread segment of light pipe straight section lower end outside, light pipe straight section exposes from the top of described cylindrical shell, and gathering portion is set at the lateral wall of light pipe straight section and cylinder top, the first refrigerant inlet tube is drawn from the gap location on light pipe straight section and described cylindrical shell top, gaseous phase outlet pipe is drawn at the position of exposing described cylindrical shell from light pipe straight section, in the central authorities of described cylindrical shell bottom face, the second refrigerant exit pipe is set, the entrance point of this second refrigerant exit pipe down, body overturns and upwards extends after bending, the mouth of pipe of the port of export and the first refrigerant inlet tube and gas phase outlet all upward.
Heat exchanger tube is divided into light pipe straight section and has the thread segment of high efficient heat exchanging effect, form high efficient heat exchanging screw thread reducer pipe, when flowing through this high efficient heat exchanging screw thread reducer pipe surface in cylindrical shell at fluid, enhance interior lateral fluid turbulent extent, make every side liquid all be able to abundant mixing, enhance heat transfer.
The interior caliber on described cylindrical shell top is equal with the outer tube diameter of light pipe straight section, and the caliber of cylindrical shell bottom is greater than cylindrical shell top, and cylindrical shell top is connected by tapering transition face with cylindrical shell bottom.Relative to top, reducing dilatation section is formed at the bottom of cylindrical shell, is more conducive to the flash distillation of fluid.
The lower surface of described thread segment is concordant with the upper surface in tapering transition face.The thread segment of cylindrical shell top and heat exchanger tube can be allowed to form longer fluid tube side, abundant heat exchange in flow process.
The position that described first refrigerant inlet tube connects with cylindrical shell is set to the first bend loss, and the position that gaseous phase outlet pipe connects with light pipe straight section is set to the second bend loss.Fluid can be allowed to slow down at bend loss, when reducing fluid turnover impact is washed away on flash vessel.
The left and right side that described gaseous phase outlet pipe and the first refrigerant inlet tube lay respectively at or vertical opposite side.Refrigerant can be made to enter to flow out respectively to the active force relative equilibrium of flash vessel with gas phase, keeps flash vessel to stablize.
Compared with existing similar technique, of the present invention pair of centrifugation flash vessel has the following advantages:
1, the heat exchanger tube in cylindrical shell adopts high efficient heat exchanging screw thread reducer pipe, have the advantages that two-sided strengthened heat transfer is separated with inside and outside Double-face rotating, fluid outside in high efficient heat exchanging screw thread reducer pipe constantly changes along tube wall flow direction, and tube wall fluid heat transferring boundary layer is destroyed, and heat transmission resistance is little;
2, high efficient heat exchanging screw thread reducer pipe and cylindrical shell tight fit inside, gap are little, and the warp surface of high efficient heat exchanging screw thread reducer pipe runner is continuously smooth, and relatively and the intensify heat transfer pipe of other form, flow resistance is lower, and rate of flow of fluid is high;
3, cylindrical shell bottom arranges reducing dilatation section, is more conducive to the flash distillation of fluid;
Provided by the invention pair of centrifugation flash vessel is applied to air injection enthalpy-increasing high-efficiency energy-saving air conditioning system, be specially adapted to pole low temperature or very high temperature working environment, thoroughly can solve gas-liquid separation, to ensure that the cold-producing medium entering compressor does not comprise liquid state, thus guarantee energy-efficient, the reliable and stable operation of whole system.
Accompanying drawing explanation
Fig. 1 is overall structure of the present invention perspective schematic front view;
Fig. 2 is overall structure diagrammatic top view of the present invention;
Fig. 3 is overall structure of the present invention signal left view;
Description of reference numerals: 1, cylindrical shell; 2, the first refrigerant inlet tube; 3, the second refrigerant exit pipe; 4, gaseous phase outlet pipe; 5, heat exchanger tube.
Detailed description of the invention
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, and below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Embodiment
As shown in Figure 1 to Figure 3, a kind of two centrifugation flash vessel, comprise cylindrical shell 1 and heat exchanger tube 5, bottom and the bottom face 130 of described cylindrical shell 1 surround refrigerant memory block, described heat exchanger tube 5 is inserted on top, this heat exchanger tube 5 comprises light pipe straight section 520 and is socketed in the thread segment 510 of light pipe straight section 520 lower end outside, light pipe straight section 520 exposes from the top of described cylindrical shell 1, and gathering portion 110 is set at the lateral wall of light pipe straight section 520 and cylindrical shell 1 top, the first refrigerant inlet tube 2 is drawn from light pipe straight section 520 and the gap location on described cylindrical shell 1 top, gaseous phase outlet pipe 4 is drawn at the position of exposing described cylindrical shell 1 from light pipe straight section 520, in the central authorities of described cylindrical shell bottom face 130, the second refrigerant exit pipe 3 is set, the entrance point 310 of this second refrigerant exit pipe 3 down, body 320 overturns and upwards extends after bending, the mouth of pipe of the port of export 330 and the first refrigerant inlet tube 2 and gas phase outlet 4 all upward.
Below the flash vessel of the present embodiment is introduced.As figure, this flash vessel comprises cylindrical shell 1, and cylindrical shell 1 upper opening and heat exchanger tube 5 tight junctions arrange gathering portion 110, and cylindrical shell 1 top and bottom arrange tapering transition face 120, and cylindrical shell 1 bottom is set to sealing surface 130; First refrigerant inlet tube 2 is arranged in the side on cylindrical shell 1 top, and the mouth of pipe is arranged upward, is provided with bend loss 210 with cylindrical shell 1 before being connected, and end 220 stretches in cylindrical shell 1, outside the light pipe straight section 520 of heat exchanger tube 5; The port of export 330 of the second refrigerant exit pipe 3 is arranged upward, and it is concordant with the mouth of pipe of gas phase outlet 4 with the first refrigerant inlet tube 2, concordant setting can make them seem more neat, and the second refrigerant exit pipe 3 entrance point 310 connects refrigerant memory block (as Fig. 2, can see the port of export 330 of the second refrigerant exit pipe 3) from cylindrical shell 1 bottom face 130 central authorities; Gaseous phase outlet pipe 4 is arranged in cylindrical shell 1 top opposite side, and be oppositely arranged in 180 ° with the first refrigerant inlet tube 2, the mouth of pipe is arranged upward, is provided with bend loss 410 with efficient heat-exchanging pipe 5 before being connected, and end 420 stretches in the light pipe straight section 520 of efficient heat-exchanging pipe 5; Efficient heat-exchanging pipe 5 bottom is thread segment 510, and concordant with top, cylindrical shell 1 tapering transition face 120, and top is set to light pipe straight section 520 (as Fig. 2, can see the top 530 of efficient heat-exchanging pipe 5).
Of the present invention pair of centrifugation flash vessel is compared with similar-type products, the screw thread reducer pipe that one section has high efficient heat exchanging effect is added in flash vessel cylindrical shell 1, when fluid flows through this high efficient heat exchanging screw thread reducer pipe surface, enhance interior lateral fluid turbulent extent, make every side liquid be able to abundant mixing, enhance heat transfer.Concrete high efficient heat exchanging threaded tube size, number of starts, the depth of thread, pitch and helical etc. can carry out careful design calculating by supporting the use product and determine.
Of the present invention pair of centrifugation flash vessel uses in air injection enthalpy-increasing high-efficiency energy-saving air conditioning system, or heat pump increase use in enthalpy system time, its specific works process and principle as follows:
First refrigerant enters flash vessel from the first refrigerant inlet tube 2, and after flowing through bend loss 210, rate of flow of fluid weakens, thus reduce enter flash vessel inner time impact is washed away on efficient heat-exchanging pipe 5.After first refrigerant enters flash vessel, thread segment 510 along efficient heat-exchanging pipe 5 flows downward generation eddy flow, by accurate designing and calculating, set the design parameters such as the size of heat exchanger tube 5 screw thread, number of starts, the depth of thread, pitch and helical, the flowing velocity of fluid is reasonably strengthened, and refrigerant is turbulence-like flowing, enhances and conducts heat with the gas phase refrigerant of the partition by heat exchanger tube 5.
Swiftly flowing first refrigerant is along the flow passage of efficient heat-exchanging pipe 5, due to the effect of centrifugal force, after first refrigerant departs from efficient heat-exchanging pipe 5, the internal face along cylindrical shell 1 is continued flowing downwards, until on the bottom face 130 of cylindrical shell 1 and in the body bending section of the second refrigerant exit pipe 3.Under gravity, the first refrigerant enters the entrance point 310 of the second refrigerant exit pipe 3, and along with the continuous increase of the first refrigerant and the continuous increase of gaseous phase partial pressure, refrigerant is discharged finally by the second refrigerant exit pipe 3, after entering system, continues periodic duty.Meanwhile, after the first refrigerant enters into the refrigerant memory block of flash vessel bottom expansion space, start flash vaporization, gas-liquid starts to be separated.Under the effect of pressure and buoyancy, the bottom-up flowing of gas phase refrigerant of evaporation, after entering heat exchanger tube 5, rise in thread segment 510 inside along heat exchanger tube 5, due to the impact of thread segment 510 inwall, gas phase refrigerant starts turbulent phenomenon occurs, and constantly strengthened, and constantly carry out heat exchange with the first refrigerant outside spiral section 510 by partition, refrigerant heat outside spiral section 510 is cooled after being absorbed by gas phase refrigerant in spiral section 510, and after the outer refrigerant heat of gas phase refrigerant absorption tube in spiral section 510, vaporific refrigerant a small amount of in gas phase refrigerant will more thoroughly gasify.
Gas phase refrigerant depart from the thread segment 510 of heat exchanger tube 5 laggard enter light pipe straight section 520, then to be discharged by gaseous phase outlet pipe 4 after bend loss 410, connect compressor air injection enthalpy-increasing mouth, finally enter work in compressor.
Provided by the invention pair of centrifugation flash vessel is applied to air injection enthalpy-increasing high-efficiency energy-saving air conditioning system, be specially adapted to pole low temperature or very high temperature working environment, thoroughly can solve gas-liquid separation, to ensure that the cold-producing medium entering compressor does not comprise liquid state, thus guarantee energy-efficient, the reliable and stable operation of whole system.
Above-listed detailed description is illustrating for possible embodiments of the present invention, and this embodiment is also not used to limit the scope of the claims of the present invention, and the equivalence that all the present invention of disengaging do is implemented or changed, and all should be contained in the scope of the claims of this case.
Claims (5)
1. a two centrifugation flash vessel, comprise cylindrical shell and heat exchanger tube, it is characterized in that: the bottom of described cylindrical shell and bottom face surround refrigerant memory block, described heat exchanger tube is inserted on top, this heat exchanger tube comprises light pipe straight section and is socketed in the thread segment of light pipe straight section lower end outside, light pipe straight section exposes from the top of described cylindrical shell, and gathering portion is set at the lateral wall of light pipe straight section and cylinder top, the first refrigerant inlet tube is drawn from the gap location on light pipe straight section and described cylindrical shell top, gaseous phase outlet pipe is drawn at the position of exposing described cylindrical shell from light pipe straight section, in the central authorities of described cylindrical shell bottom face, the second refrigerant exit pipe is set, the entrance point of this second refrigerant exit pipe down, body overturns and upwards extends after bending, the mouth of pipe of the port of export and the first refrigerant inlet tube and gas phase outlet all upward.
2. according to claim 1 pair of centrifugation flash vessel, is characterized in that: the interior caliber on described cylindrical shell top is equal with the outer tube diameter of light pipe straight section, and the caliber of cylindrical shell bottom is greater than cylindrical shell top, and cylindrical shell top is connected by tapering transition face with cylindrical shell bottom.
3. according to claim 2 pair of centrifugation flash vessel, is characterized in that: the lower surface of described thread segment is concordant with the upper surface in tapering transition face.
4. the two centrifugation flash vessels according to claim 1 or 2 or 3, is characterized in that: the position that described first refrigerant inlet tube connects with cylindrical shell is set to the first bend loss, and the position that gaseous phase outlet pipe connects with light pipe straight section is set to the second bend loss.
5. the two centrifugation flash vessels according to claim 1 or 2 or 3, is characterized in that: described gaseous phase outlet pipe lays respectively at the left and right side of the second refrigerant exit pipe or vertical opposite side with the first refrigerant inlet tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510299901.XA CN104896815B (en) | 2015-06-03 | 2015-06-03 | A kind of double centrifugation flash vessels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510299901.XA CN104896815B (en) | 2015-06-03 | 2015-06-03 | A kind of double centrifugation flash vessels |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104896815A true CN104896815A (en) | 2015-09-09 |
| CN104896815B CN104896815B (en) | 2018-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510299901.XA Active CN104896815B (en) | 2015-06-03 | 2015-06-03 | A kind of double centrifugation flash vessels |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6574986B2 (en) * | 2000-08-21 | 2003-06-10 | Mitsubishi Denki Kabushiki Kaisha | Oil separator and outdoor unit with the oil separator |
| CN2898730Y (en) * | 2006-01-13 | 2007-05-09 | 浙江春晖智能控制股份有限公司 | Gas-liquid separator |
| CN201355161Y (en) * | 2009-02-25 | 2009-12-02 | 浙江春晖智能控制股份有限公司 | Efficient gas-liquid separator |
| JP2010286193A (en) * | 2009-06-12 | 2010-12-24 | Mitsubishi Electric Corp | Cyclone type oil separator, and compression type refrigerating device and air compressing device having the same |
| CN102788458A (en) * | 2011-05-16 | 2012-11-21 | 季晓鸣 | Gas-liquid separator |
-
2015
- 2015-06-03 CN CN201510299901.XA patent/CN104896815B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6574986B2 (en) * | 2000-08-21 | 2003-06-10 | Mitsubishi Denki Kabushiki Kaisha | Oil separator and outdoor unit with the oil separator |
| CN2898730Y (en) * | 2006-01-13 | 2007-05-09 | 浙江春晖智能控制股份有限公司 | Gas-liquid separator |
| CN201355161Y (en) * | 2009-02-25 | 2009-12-02 | 浙江春晖智能控制股份有限公司 | Efficient gas-liquid separator |
| JP2010286193A (en) * | 2009-06-12 | 2010-12-24 | Mitsubishi Electric Corp | Cyclone type oil separator, and compression type refrigerating device and air compressing device having the same |
| CN102788458A (en) * | 2011-05-16 | 2012-11-21 | 季晓鸣 | Gas-liquid separator |
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| Publication number | Publication date |
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| CN104896815B (en) | 2018-01-16 |
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