CN202254463U - Refrigerating device checked and pressurized by using ejector - Google Patents
Refrigerating device checked and pressurized by using ejector Download PDFInfo
- Publication number
- CN202254463U CN202254463U CN201120356767XU CN201120356767U CN202254463U CN 202254463 U CN202254463 U CN 202254463U CN 201120356767X U CN201120356767X U CN 201120356767XU CN 201120356767 U CN201120356767 U CN 201120356767U CN 202254463 U CN202254463 U CN 202254463U
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- Prior art keywords
- injector
- evaporimeter
- outlet
- expansion valve
- ejector
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Abstract
The utility model discloses a refrigerating device checked and pressurized by using an ejector, and aims to provide a device in which the ejector replaces an evaporating pressure adjusting valve, a check valve and a compressor. The outlet of a condenser is connected with the inlet of a dry filter; the outlet of the dry filter is connected with the inlets of a first evaporator, a second evaporator, a third evaporator and a fourth evaporator through a first thermal expansion valve, a second thermal expansion valve, a third thermal expansion valve and a fourth thermal expansion valve; the outlet of the first evaporator is connected with the inlet connection pipe of a first ejector; the outlet of the second evaporator is connected with the ejection connection pipe of the first ejector; the outlet connection pipe of the first ejector is connected with the inlet connection pipe of the second ejector; the outlet of the third evaporator is connected with the ejection connection pipe of the second ejector; the outlet connection pipe of the second ejector is connected with the inlet connection pipe of a third ejector; the outlet of the fourth evaporator is connected with the ejection connection pipe of the third ejector; and the outlet connection pipe of the third ejector is connected with the inlet of the condenser. The device is convenient to control, and is safe and reliable.
Description
Technical field
The utility model relates to refrigeration technology field, in particular, relates to a kind of injector that utilizes and prevents that refrigerant vapour from flowing backwards, and realizes the refrigerating plant of compression.
Background technology
Large-scale refrigerating plant often is made up of the cold house of a plurality of demand different temperatures, and the evaporimeter of different evaporating temperatures is set in the cold house.In traditional refrigeration system, evaporating pressure regulating valve is set, so that the pressure of control evaporator outlet in the outlet of high-temperature evaporator.Outlet at cryogenic vaporizer is provided with check-valves, guarantees that the refrigerant vapour of each evaporimeter can successfully be got back to compressor.During system-down, the check-valves of cryogenic vaporizer outlet can prevent that the refrigerant vapour in the high-temperature evaporator from flowing backward in the cryogenic vaporizer and condense, to ensure the operate as normal of low temperature cold house, can not cause the generation of the liquid hammer accident of refrigeration compressor.But in order to guarantee control accuracy, each valve member needs very high sensitivity, in case valve member is malfunctioning, can cause system's cisco unity malfunction, even serious accident.
The utility model content
The utility model is in order to overcome weak point of the prior art; Provide a kind of employing injector to replace evaporating pressure regulating valve and check-valves, realize the supercharging of low-temperature refrigerant steam simultaneously, promptly substitute compressor; Control is convenient, the refrigerating plant of the injector non-return supercharging of energy-conserving and environment-protective.
The utility model is realized through following technical proposals:
The refrigerating plant of a kind of injector non-return supercharging; It is characterized in that; Form cooling cycle system by the first heating power expansion valve, the second heating power expansion valve, the 3rd heating power expansion valve, the 4th heating power expansion valve, condenser, first injector, second injector, the 3rd injector, first evaporimeter, second evaporimeter, the 3rd evaporimeter, the 4th evaporimeter, device for drying and filtering; The outlet of said condenser is connected with the inlet of device for drying and filtering; The outlet of said device for drying and filtering is connected with the inlet of first evaporimeter, second evaporimeter, the 3rd evaporimeter, the 4th evaporimeter through the first heating power expansion valve, the second heating power expansion valve, the 3rd heating power expansion valve, the 4th heating power expansion valve respectively; The outlet of said first evaporimeter is connected with the inlet connection of first injector; The outlet of second evaporimeter is taken over the injection of first injector and is connected; The discharge connection of first injector is connected with the inlet connection of second injector, and the outlet of the 3rd evaporimeter is taken over the injection of second injector and is connected, and the discharge connection of second injector is connected with the inlet connection of the 3rd injector; The outlet of the 4th evaporimeter is taken over the injection of the 3rd injector and is connected, and the discharge connection of the 3rd injector is connected with the import of condenser.
Said cooling cycle system is refrigeration working medium with R290.
The utlity model has following technique effect:
1, the refrigerating plant of the injector non-return supercharging of the utility model, the refrigerant vapour of first evaporator outlet that evaporating temperature is higher nozzle through first injector expands and with flow at high speed; Nozzle exit at first injector causes very low pressure, because of the rate of outflow is high, pressure is low, attracts the low-pressure steam that evaporation generates in second evaporimeter; Get into the mixing chamber of first injector, the steam in mixing chamber gets into diffuser after mixing, the nozzle that flow velocity reduces in diffuser, pressure raises back entering second injector; Expand and with flow at high speed, cause very low pressure at the nozzle exit of second injector, because of the rate of outflow is high, pressure is low; Attract the low-pressure steam that evaporation generates in the 3rd evaporimeter; Get into the mixing chamber of second injector, the steam in mixing chamber gets into diffuser after mixing, the nozzle that flow velocity reduces in diffuser, pressure raises back entering the 3rd injector; Expand and with flow at high speed; Cause very low pressure in the 3rd injector nozzle exit,, attract the low-pressure steam that evaporation generates in the 4th evaporimeter because of the rate of outflow is high, pressure is low; Get into the mixing chamber of the 3rd injector, mix after diffusion gets into condenser.The device of the utility model adopts injector to replace evaporating pressure regulating valve and check-valves, realizes the supercharging of low-temperature refrigerant steam simultaneously, promptly substitutes compressor, and convenient control, safe and reliable, more traditional Refrigeration Technique energy savings reduce operating cost.And, simple in structure, easy to operate, environmental protection and energy saving.
2, the device of the utility model utilizes natural refrigerant R290 to be cold-producing medium, environmental protection.
Description of drawings
Fig. 1 is for being the sketch map of the refrigerating plant of the utility model injector non-return supercharging;
Fig. 2 is the interface sketch map of first injector;
Fig. 3 is the interface sketch map of second injector;
Fig. 4 is the interface sketch map of the 3rd injector.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is elaborated.
The sketch map of the refrigerating plant of the utility model injector non-return supercharging such as Fig. 1 be to shown in Figure 4, forms cooling cycle system by the first heating power expansion valve 1, the second heating power expansion valve 2, the 3rd heating power expansion valve 3, the 4th heating power expansion valve 4, condenser 5, first injector 10, second injector 8, the 3rd injector 6, first evaporimeter 12, second evaporimeter 11, the 3rd evaporimeter 9, the 4th evaporimeter 7, device for drying and filtering 13.Said first injector, second injector, the 3rd injector are prior art constructions, are made up of nozzle, mixing chamber and diffuser respectively.Said cooling cycle system is refrigeration working medium with R290.
The outlet of said condenser 5 is connected with the inlet of device for drying and filtering 13; The outlet of device for drying and filtering 13 is connected with the inlet of the first heating power expansion valve 1, the second heating power expansion valve 2, the 3rd heating power expansion valve 3, the 4th heating power expansion valve 4 respectively; The outlet of said first heating power expansion valve is connected with the inlet of first evaporimeter 12; The outlet of said second heating power expansion valve is connected with the inlet of second evaporimeter 11; The outlet of said the 3rd heating power expansion valve is connected with the inlet of the 3rd evaporimeter 9, and the outlet of said the 4th heating power expansion valve is connected with the inlet of the 4th evaporimeter 7, and the outlet of first evaporimeter 12 is connected with the inlet connection 17 of first injector 10; The outlet of second evaporimeter is taken over 18 with the injection of first injector and is connected; The discharge connection 19 of first injector 10 is connected with the inlet connection 23 of second injector 8, and the outlet of the 3rd evaporimeter 9 is taken over 24 with the injection of second injector 8 and is connected, and the discharge connection 25 of second injector 8 is connected with the inlet connection 29 of the 3rd injector 6; The outlet of the 4th evaporimeter 7 is taken over 30 with the injection of the 3rd injector 6 and is connected, and the discharge connection 31 of the 3rd injector 6 is connected with the import of condenser 5.
When refrigeration system was moved, the R290 refrigerant vapour of first evaporimeter 12 outlet that evaporating temperature is higher was through the nozzle 14 of first injector 10, expanded and with flow at high speed; Cause very low pressure in nozzle 14 exits,, attract the low-pressure steam that evaporation generates in second evaporimeter 11 because of the rate of outflow is high, pressure is low; Get into the mixing chamber 16 of first injector 10, the steam in mixing chamber gets into diffuser 15 after mixing, the nozzle 20 that flow velocity reduces in diffuser 15, pressure raises back entering second injector 8; Expand and, cause very low pressure, because of the rate of outflow is high, pressure is low in nozzle 20 exits with flow at high speed; Attract the low-pressure steam that evaporation generates in the 3rd evaporimeter 9, get into the mixing chamber 22 of second injector 8, the steam in mixing chamber gets into diffuser 21 after mixing; The nozzle 26 that flow velocity reduces in diffuser 21, pressure raises back entering the 3rd injector 6; Expand and, cause very low pressure, because of the rate of outflow is high, pressure is low in nozzle 26 exits with flow at high speed; Attract the low-pressure steam that evaporation generates in the 4th evaporimeter 7; Get into the mixing chamber 28 of the 3rd injector 6, the steam in mixing chamber 28 gets into diffuser 27 after mixing, and flow velocity reduces in diffuser 27, pressure raises back entering condenser 5; The R290 refrigerant vapour of HTHP is emitted heat in condenser; The liquid that is condensed into HTHP through getting into first evaporimeter 12, second evaporimeter 11, the 3rd evaporimeter 9, the 4th evaporimeter 7 after the first heating power expansion valve 1, the second heating power expansion valve 2, the 3rd heating power expansion valve 3, the 4 throttling step-downs of the 4th heating power expansion valve, absorbs the heat of vaporization in the space that is cooled respectively behind dry filter; So go round and begin again, satisfy the demand of different evaporating temperatures.
Utilize the refrigerating plant of the injector non-return supercharging of the utility model to can be used as the low-temperature receiver that commerce, industry, medical treatment and chemical industry etc. provide different evaporating temperatures.
Claims (2)
1. the refrigerating plant of injector non-return supercharging; It is characterized in that; Form cooling cycle system by the first heating power expansion valve, the second heating power expansion valve, the 3rd heating power expansion valve, the 4th heating power expansion valve, condenser, first injector, second injector, the 3rd injector, first evaporimeter, second evaporimeter, the 3rd evaporimeter, the 4th evaporimeter, device for drying and filtering; The outlet of said condenser is connected with the inlet of device for drying and filtering; The outlet of said device for drying and filtering is connected with the inlet of first evaporimeter, second evaporimeter, the 3rd evaporimeter, the 4th evaporimeter through the first heating power expansion valve, the second heating power expansion valve, the 3rd heating power expansion valve, the 4th heating power expansion valve respectively; The outlet of said first evaporimeter is connected with the inlet connection of first injector; The outlet of second evaporimeter is taken over the injection of first injector and is connected; The discharge connection of first injector is connected with the inlet connection of second injector, and the outlet of the 3rd evaporimeter is taken over the injection of second injector and is connected, and the discharge connection of second injector is connected with the inlet connection of the 3rd injector; The outlet of the 4th evaporimeter is taken over the injection of the 3rd injector and is connected, and the discharge connection of the 3rd injector is connected with the import of condenser.
2. the refrigerating plant of injector non-return according to claim 1 supercharging, said cooling cycle system are refrigeration working medium with R290.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120356767XU CN202254463U (en) | 2011-09-22 | 2011-09-22 | Refrigerating device checked and pressurized by using ejector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120356767XU CN202254463U (en) | 2011-09-22 | 2011-09-22 | Refrigerating device checked and pressurized by using ejector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202254463U true CN202254463U (en) | 2012-05-30 |
Family
ID=46115696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120356767XU Withdrawn - After Issue CN202254463U (en) | 2011-09-22 | 2011-09-22 | Refrigerating device checked and pressurized by using ejector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202254463U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305492A (en) * | 2011-09-22 | 2012-01-04 | 天津商业大学 | Multi-evaporating-temperature combined jet refrigerating system |
| CN115096011A (en) * | 2022-06-20 | 2022-09-23 | 江苏凌氢新能源科技有限公司 | Cascaded ejector multiple evaporator refrigeration system |
-
2011
- 2011-09-22 CN CN201120356767XU patent/CN202254463U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305492A (en) * | 2011-09-22 | 2012-01-04 | 天津商业大学 | Multi-evaporating-temperature combined jet refrigerating system |
| CN115096011A (en) * | 2022-06-20 | 2022-09-23 | 江苏凌氢新能源科技有限公司 | Cascaded ejector multiple evaporator refrigeration system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120530 Effective date of abandoning: 20130612 |
|
| RGAV | Abandon patent right to avoid regrant |