CN208332754U - A kind of variable-flow evaporator and refrigeration system with throttling function - Google Patents
A kind of variable-flow evaporator and refrigeration system with throttling function Download PDFInfo
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- CN208332754U CN208332754U CN201820683905.7U CN201820683905U CN208332754U CN 208332754 U CN208332754 U CN 208332754U CN 201820683905 U CN201820683905 U CN 201820683905U CN 208332754 U CN208332754 U CN 208332754U
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Abstract
The utility model discloses a kind of variable-flow evaporator and refrigeration system with throttling function.The variable-flow evaporator includes outer layer heat exchange sleeve, internal layer injection pipe；Internal layer injection pipe is closed at one end, the other end forms opening to receive the refrigerant liquid of dispenser discharge, internal layer sprays pipe surface and is distributed several spray-holes, condensed high temperature and pressure liquid refrigerant for flowing out dispenser throttles as the liquid refrigerant of low-temp low-pressure, and the whole inner surface for being ejected into outer layer heat exchanger tube forms thin film to exchange heat；Internal layer injection tube outer surface is cased with rotatable flow adjusting sleeve pipe, and the rectangular strip gap of predetermined length corresponding with spray-hole is dispersed on the tube wall of flow adjusting sleeve pipe；Outer layer heat exchange sleeve is passed through close to the sealing of one end of dispenser and by the open end of internal layer injection pipe, the other end is formed with gas collecting tube for exporting refrigerant to compressor.The utility model can save the conventional throttling set of refrigeration system, simplify system, reduce cost, improve running efficiency of system.
Description
Technical field
The utility model relates to Refrigeration & Air-Conditioning technical fields, and in particular to a kind of variable-flow evaporation with throttling function
Device and refrigeration system.
Background technique
It include compressor, condenser, restricting element and steaming in the basic composition of refrigerating field, a typical refrigeration system
Send out device.Evaporator is one core, and evaporator is between throttle valve and compressor return air general pipeline or is connected to vapour-liquid
Between the feed flow and muffler of separation equipment, and it is mounted on and needs in space that is cooling, freezing.Currently, changing in refrigeration system
Hot equipment is mainly dividing wall type heat exchanger, as double pipe heat exchanger, shell and tube exchanger, plate heat exchanger, plate-fin heat exchanger,
Lamella heat exchanger etc..Double pipe heat exchanger is with structure is simple, heat exchanger efficiency is high, can arbitrarily change shape according to installation site
The advantages that state, but dismantle maintenance, cleaning trouble.Shell and tube exchanger is firm in structure, heat exchange amount is big, easily fabricated, but is conducting heat
Shortcomings in terms of efficiency, compactedness and metal wastage.Plate heat exchanger has the spies such as heat exchange efficiency height, advantages of compact and light structure
Point, but higher cost and easily blocking.Plate-fin heat exchanger heat transfer efficiency is high, compact light and handy, but manufacturing process requirement is stringent, easy
Blocking, cleaning maintenance are difficult.Lamella heat exchanger has taken into account the advantages of shell-and-tube heat exchanger and plate heat exchanger, but manufacturing process
Complicated, welding capacity is greatly and requirement is high.For refrigeration system, evaporator, should also be as far as possible other than meeting heat exchanger custom requirements
Reduce heat transfer temperature difference, filling quantity of refrigerant and it is higher and multi-functional to provide a kind of heat exchange efficiency to improve the Operating ettectiveness of system
Evaporator is refrigeration industry urgent need.
Utility model content
The purpose of this utility model is for technical deficiency existing in the prior art, and providing a kind of refrigerant flow can
The variable-flow evaporator and refrigeration system with throttling function adjusted.
It is for technical solution used by realization the purpose of this utility model:
A kind of variable-flow evaporator with throttling function, including outer layer heat exchange sleeve and internal layer injection pipe, it is described interior
Closed at one end, the refrigerant liquid that other end formation opening is discharged for receiving dispenser of layer injection pipe, the internal layer injection
The surface of pipe is distributed several spray-holes, and the condensed high temperature and pressure liquid refrigerant for flowing out dispenser throttles as low temperature
The liquid refrigerant of low pressure, and the whole inner surface for being ejected into outer layer heat exchanger tube forms thin film with evaporation endothermic；Described
It is closely cased with rotatable flow adjusting sleeve pipe on internal layer injection tube outer surface, divides on the tube wall of the flow adjusting sleeve pipe
Cloth the rectangular strip gap of predetermined length corresponding with spray-hole；The outer layer heat exchange sleeve close to dispenser one end sealing and by
The open end of internal layer injection pipe passes through, and the other end is formed with gas collecting tube, for exporting refrigerant gas to compressor.
Open at one end, the other end closing of the flow adjusting sleeve pipe, and closed end connects stepper motor.
The aperture of the spray-hole is identical.
The purpose of this utility model, which also resides in, provides a kind of refrigeration system, including compressor, evaporator, condenser, liquid separation
Device and fluid reservoir, which is characterized in that the compressor is connected with condenser, and the condenser is connect with fluid reservoir, described
Fluid reservoir is connect with dispenser, and the dispenser is connect with multiple evaporators being set side by side；The evaporator and compressor
Connection, the evaporator is using the variable-flow evaporator described in any one of claim 1-4 with throttling function.
Blower is provided on the outside of the evaporator.
The utility model plays throttling action using the spray-hole arranged on internal layer injection pipe, is mentioned using jet impact mode
High evaporator heat transfer efficiency, brought beneficial effect is:
(1) resulting refrigerant is the liquid refrigerant of low-temp low-pressure by the throttling of internal layer injection pipe spray-hole after condensing,
The conventional throttling set that refrigeration system can be saved reduces cost, simplifies system.
(2) pass through setting stepper motor steps and drive the rotation of flow adjusting sleeve pipe, change the spray-hole for capableing of effective hydrojet
Quantity can change the flow of refrigerant in a certain range, realize the on-demand adjusting of the cooling capacity of refrigeration system, improve system operation
Efficiency；
(3) refrigerant is sprayed by spray-hole to outer layer heat exchange sleeve inner surface, can form thin film heat exchange, both sufficiently
Heat exchange area is utilized, improves the coefficient of heat transfer, and system refrigerant filling quantity can be reduced.
Detailed description of the invention
Fig. 1 is the principle schematic diagram using the refrigeration system of the variable-flow evaporator with throttling function；
Fig. 2 is the principle schematic diagram with the variable-flow evaporator of throttling function.
Specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.It should be appreciated that this place
The specific embodiment of description is only used to explain the utility model, is not used to limit the utility model.
Referring to shown in Fig. 1-2, a kind of variable-flow evaporator 6 with throttling function, comprising:
One end 14 of outer layer heat exchange sleeve 9 and internal layer injection pipe 12, the internal layer injection pipe 12 is closed, and the other end is formed
For opening for connecting with dispenser 5, the surface of the internal layer injection pipe 12 is distributed several spray-holes 13；In the internal layer injection pipe
It is closely cased with rotatable flow adjusting sleeve pipe 10 on 12 outer surfaces, is dispersed on the tube wall of the flow adjusting sleeve pipe 10
With the rectangular strip gap 11 of the corresponding predetermined length of spray-hole 13, closed at one end, another end opening of the flow adjusting sleeve pipe 10
For covering in the internal layer injection pipe 12；The outer layer heat exchange sleeve 9 is close by ring sealing plate close to 5 one end 8 of dispenser
Envelope, and the open end of internal layer injection pipe 12 is connected after ring sealing plate with dispenser 5, the other end is formed with gas collecting tube 15, uses
In the output end as refrigerant gas, it is output to the gas returning port of the compressor of refrigeration system, the open end of internal layer injection pipe 12
Outside wall surface and ring sealing plate medial surface sealing welding, the open end of the flow adjusting sleeve pipe 10 is interior with the ring sealing plate
Side surface contact.
The utility model plays throttling action using the spray-hole on internal layer injection pipe, substitutes the section in conventional refrigeration
Device is flowed, refrigeration system is simplified；Evaporator heat transfer efficiency is improved using jet impact mode, to pass through evaporation temperature needed for improving
Degree is to improve refrigeration system overall operation efficiency.
Wherein, the aperture of the spray-hole and arrangement are specifically arranged according to the caliber of variable-flow evaporator, with
The refrigerant ejected can be formed uniformly on the whole surface of the inner wall of outer layer heat exchange sleeve, form one layer of membranaceous system of liquid
Cryogen is principle, and arranged for interval as shown in Figure 2 is on internal layer injection pipe.
Wherein, the outer layer heat exchange sleeve 9 and internal layer injection pipe 12 and flow adjusting sleeve pipe 10 are concentric.
9 diameter of outer layer heat exchange sleeve is 3-5 times or so, preferably 4 times of internal layer injection pipe 12.
The purpose of this utility model, which also resides in, provides a kind of refrigeration system of variable-flow evaporator with throttling function, packet
Include compressor 1, dispenser 5, compressor 1 exhaust pipe be connected with condenser 3, the drain pipe and fluid reservoir 4 of the condenser 3
Connection, the leakage fluid dram of the fluid reservoir are connect with dispenser 5, the leakage fluid dram of the dispenser 5 and the unsteady flow with throttling function
The opening for measuring the internal layer injection pipe 12 of evaporator 6 is connected, the outside setting of the variable-flow evaporator 6 with throttling function
There is blower 7.
Utility model works principle is: condensed high temperature and pressure liquid refrigerant enter dispenser and evenly distribute to
The internal layer injection pipe of each road variable-flow evaporator, the subsequent each spray-hole for spraying pipe surface distribution by internal layer, which is sprayed and throttled, is
Low-temp low-pressure liquid refrigerant, gained low-temp low-pressure liquid refrigerant jet stream to outer layer heat exchange sleeve inner surface heat absorption evaporation become
Gaseous state, cylindrical cavity of the gaseous refrigerant between flow adjusting sleeve pipe and outer layer heat exchange sleeve are discharged and are pooled to the gas collecting tube of the other end
And it exports to the gas returning port of compressor.
The flow adjusting sleeve pipe 10, can be with stepping electricity close to one end 14 of the closed end of the internal layer injection pipe 12
The output shaft of machine 16 is connected, and such as welds, and is driven and is rotated by stepper motor 16.Stepper motor 16 is located at outside variable-flow evaporator,
The outer layer heat exchanger tube and the sealed end of flow adjusting sleeve pipe 10 of output shaft hermetically passing variable-flow evaporator are connected to a fixed.Pass through
Stepper motor steps are set and drive the rotation of flow adjusting sleeve pipe, the quantity for capableing of the spray-hole of hydrojet can be changed, to change system
The flow of cryogen then realizes that the refrigerating capacity of refrigeration system is adjusted.
It should be noted that being sprayed according to the rectangular strip seam 11 on flow adjusting sleeve pipe 10 with internal layer in the utility model
One third flow, 2/3rds flows and full flow Three models may be implemented in the relative position of spray-hole 13 on pipe 12
Operation.
One third flow rate mode: the step number of setting stepper motor 16 makes flow adjusting sleeve pipe 10 rotate appropriate angle, makes
Internal layer sprays pipe surface, and only one third aperture exposes through 10 surface rectangle gap of adjusting sleeve pipe.Condensed high-temperature high-pressure liquid
State refrigerant enters dispenser 5 and evenly distributes to each road internal layer injection pipe 12, is then distributed by 12 surface of internal layer injection pipe
Each spray-hole 13 spray and throttle as low-temp low-pressure liquid refrigerant, gained low-temp low-pressure liquid refrigerant jet stream to outer layer
The heat absorption evaporation of 9 inner surface of heat exchange sleeve becomes gaseous state, and gaseous refrigerant is between flow adjusting sleeve pipe 10 and outer layer heat exchange sleeve 9
Cylindrical cavity is pooled to the gas collecting tube 15 of the other end and exports.
2/3rds flow rate modes: the step number of setting stepper motor 16 makes flow adjusting sleeve pipe 10 rotate appropriate angle, makes
Internal layer sprays 2/3rds aperture of pipe surface and exposes through 10 surface rectangle gap of adjusting sleeve pipe.Condensed high temperature and pressure liquid
Refrigerant enters dispenser 5 and evenly distributes to each road internal layer injection pipe 12, is then distributed by 12 surface of internal layer injection pipe
Each spray-hole 13 is sprayed and is throttled for low-temp low-pressure liquid refrigerant, gained low-temp low-pressure liquid refrigerant jet stream to outer layer heat exchange
The heat absorption evaporation of 9 inner surface of casing becomes gaseous state, cylindrical cavity of the gaseous refrigerant between flow adjusting sleeve pipe 10 and outer layer heat exchange sleeve 9
It is pooled to the gas collecting tube 15 of the other end and exports.
Full flow mode: the step number of setting stepper motor 16 makes flow adjusting sleeve pipe 10 rotate appropriate angle, sprays internal layer
Pipe surface whole aperture is penetrated to expose through 10 surface rectangle gap of adjusting sleeve pipe.Condensed high temperature and pressure liquid refrigerant enters
Dispenser 5 is simultaneously evenly distributed to each road internal layer injection pipe 12, each spray-hole 13 being then distributed by 12 surface of internal layer injection pipe
It sprays and throttles for low-temp low-pressure liquid refrigerant, table in gained low-temp low-pressure liquid refrigerant jet stream to outer layer heat exchange sleeve 9
Face heat absorption evaporation becomes gaseous state, and cylindrical cavity of the gaseous refrigerant between flow adjusting sleeve pipe 10 and outer layer heat exchange sleeve 9 is pooled to separately
The gas collecting tube 15 of one end simultaneously exports.
The above is only the preferred embodiment of the utility model, it is noted that for the general of the art
For logical technical staff, without departing from the principle of this utility model, several improvements and modifications can also be made, these change
It also should be regarded as the protection scope of the utility model into retouching.
Claims (5)
1. a kind of variable-flow evaporator with throttling function, which is characterized in that sprayed including outer layer heat exchange sleeve and internal layer
Pipe, closed at one end, the refrigerant liquid that other end formation opening is discharged for receiving dispenser of the internal layer injection pipe are described
The surface of internal layer injection pipe is distributed several spray-holes, and the condensed high-temperature high-pressure refrigerant throttling for flowing out dispenser is
The liquid refrigerant of low-temp low-pressure, and the whole inner surface for being ejected into outer layer heat exchanger tube forms thin film with evaporation and heat-exchange；?
Rotatable flow adjusting sleeve pipe, the tube wall of the flow adjusting sleeve pipe are closely cased on the internal layer injection tube outer surface
On be dispersed with the rectangular strip gap of predetermined length corresponding with spray-hole；The outer layer heat exchange sleeve is sealed close to one end of dispenser
And passed through by the open end of internal layer injection pipe, the other end is formed with gas collecting tube, for exporting refrigerant gas to compressor.
2. according to claim 1 with the variable-flow evaporator of throttling function, which is characterized in that the flow adjusting sleeve pipe
It is open at one end, the other end closing, and closed end connect stepper motor.
3. according to claim 1 with the variable-flow evaporator of throttling function, which is characterized in that the aperture of the spray-hole
It is identical.
4. a kind of refrigeration system, which is characterized in that including compressor, evaporator, condenser, dispenser and fluid reservoir are special
Sign is that the compressor is connected with condenser, and the condenser is connect with fluid reservoir, and the fluid reservoir and dispenser connect
It connects, the dispenser is connect with multiple evaporators being set side by side；The evaporator is connect with compressor, and the evaporator is adopted
With the variable-flow evaporator of throttling function described in claim any one of 1-3.
5. refrigeration system according to claim 4, which is characterized in that be provided with blower on the outside of the evaporator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820683905.7U CN208332754U (en) | 2018-05-09 | 2018-05-09 | A kind of variable-flow evaporator and refrigeration system with throttling function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820683905.7U CN208332754U (en) | 2018-05-09 | 2018-05-09 | A kind of variable-flow evaporator and refrigeration system with throttling function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208332754U true CN208332754U (en) | 2019-01-04 |
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ID=64776518
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820683905.7U Expired - Fee Related CN208332754U (en) | 2018-05-09 | 2018-05-09 | A kind of variable-flow evaporator and refrigeration system with throttling function |
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| CN (1) | CN208332754U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108518895A (en) * | 2018-05-09 | 2018-09-11 | 天津商业大学 | A kind of variable-flow evaporator and refrigeration system with throttling function |
-
2018
- 2018-05-09 CN CN201820683905.7U patent/CN208332754U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108518895A (en) * | 2018-05-09 | 2018-09-11 | 天津商业大学 | A kind of variable-flow evaporator and refrigeration system with throttling function |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190104 Termination date: 20190509 |