CN201866972U - Low-temperature cold air jetting machine capable of automatically adjusting temperature - Google Patents
Low-temperature cold air jetting machine capable of automatically adjusting temperature Download PDFInfo
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- CN201866972U CN201866972U CN2010206110430U CN201020611043U CN201866972U CN 201866972 U CN201866972 U CN 201866972U CN 2010206110430 U CN2010206110430 U CN 2010206110430U CN 201020611043 U CN201020611043 U CN 201020611043U CN 201866972 U CN201866972 U CN 201866972U
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- refrigeration compressor
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Abstract
The utility model discloses a low-temperature cold air jetting machine capable of automatically adjusting the temperature, which comprises a refrigeration compressor, a condenser, a capillary group and a heat exchanger communicated in sequence according to a refrigerant process. A refrigerant is evaporated and gasified in the heat exchanger and then returns to the inlet of the refrigeration compressor; the heat exchanger is provided with a cold air inlet and a cold air outlet; and the low-temperature cold air jetting machine also comprises an automatic temperature adjusting system, and the automatic temperature adjusting system comprises a cold air temperature sensor, a main solenoid valve and a PLC (programmable logic controller). The opening of the main solenoid valve can be adjusted through the PLC automatic control system according to the temperature parameter of cold air at the outlet, the temperature of the sprayed cold air can be adjusted automatically according to cooling needs, the temperature range can be adjusted to adapt to needs of work pieces more accurately, and the labor intensity of operators can be reduced.
Description
Technical field
The utility model relates to a kind of cooling device, particularly a kind of cold air jet machinery.
Background technology
In the machining process of metal,,, can have many adverse effects to the physicochemical property of machining accuracy and workpiece as not cooled off owing to can produce a large amount of heats owing to cutting between cutter and the workpiece.The existing type of cooling comprises cooling fluid cooling and air cooling.
Air cooling is owing to have use, store, keep a public place clean and handle advantages such as convenient, and to environment with the operator is healthy can be to the same negative consequence that causes of cutting fluid, use and processing cost are lower, and therefore, air cooling metal machined (dry-type processing) generally comes into one's own.
In the prior art, in the air-cooled metal machining process, provide cold wind by air-cooler.The refrigeration system of air-cooler generally comprises compressor, condenser and evaporimeter.In the prior art, cold wind transfers to the nozzle ejection by the outlet of heat exchanger (evaporimeter) cold wind and is used for cooling; But in use, work-piece cools needs different chilling temperatures, otherwise can produce harmful effect to the physicochemical property of workpiece.For addressing the above problem, existing air-cooler is provided with the mixed flow pipeline, makes low-temperature cold wind mix ejection with normal temperature wind, by adjusting flow, reaches the purpose of adjusting chilling temperature.Though solved the chilling temperature problem to a certain extent, cooling system still moves under higher load condition, is unfavorable for protection equipment; simultaneously, need to be equipped with the normal temperature air pipe line, and do not have effective temperature measuring equipment; with the subjective control of operator, has bigger error.
Therefore, need a kind ofly can carry out temperature controlled cold air jet machine, can adjust the temperature of ejection cold wind automatically according to the cooling needs, the adjustment temperature index can adapt to the workpiece needs comparatively accurately, and alleviates operator's labour intensity.
The utility model content
In view of this, the purpose of this utility model provides a kind of automatic temperature-control low temperature cold air jet machine, can adjust the temperature of ejection cold wind automatically according to the cooling needs, adjusts temperature index and can adapt to the workpiece needs comparatively accurately, and alleviate operator's labour intensity.
Automatic temperature-control low temperature cold air jet machine of the present utility model comprises the refrigeration compressor, condenser, capillary group and the heat exchanger that are communicated with successively by the cold-producing medium flow process, and cold-producing medium is back to the refrigeration compressor import evaporate gasification in heat exchanger after; Described heat exchanger is provided with cold wind import and cold wind outlet;
Also comprise the temperature automatic regulating system, comprising:
The cold wind temperature sensor is arranged at heat exchanger cold wind export pipeline and is used to gather the cold wind temperature parameter;
Main solenoid valve is arranged at capillary group entrance pipe;
The PLC controller is used to receive the cold wind temperature sensor signal, sends control command according to received signal to main solenoid valve.
Further, the setting of described condensator outlet pipeline is communicated in the pressure release bypass of refrigeration compressor import, described pressure release bypass by MEDIA FLOW to setting gradually pressure release fluid reservoir and pressure release capillary group; Described pressure release bypass is positioned at the order that pipeline before the inlet of pressure release fluid reservoir is provided for receiving the PLC controller and finishes the pressure release magnetic valve of regulating aperture or keying;
Further, in the cold medium bypass that the outlet and the pipeline setting between the capillary group of condenser is communicated in the refrigeration compressor import, described cold medium bypass is provided with cold bypass capillary group; The cold medium bypass magnetic valve of regulating aperture or keying is finished in the order that pipeline is provided for receiving the PLC controller before the cold bypass capillary group inlet;
Further, the pipeline setting between described refrigeration compressor outlet and the condenser inlet is communicated in the thermal medium bypass of refrigeration compressor import, and described thermal medium bypass is provided with thermal bypass capillary group; Described thermal medium bypass is positioned at thermal bypass capillary group entrance pipe thermal medium bypass magnetic valve is set, and the refrigeration compressor entrance pipe is finished the adjusting aperture or opened and closed temperature controller to level thermal medium bypass magnetic valve transmission order after being provided for detecting refrigeration compressor import medium temperature;
Further, the pipeline between level condensator outlet and the capillary group is provided with filter; Described condenser adopts air-cooled structure;
Further, described refrigeration compressor export pipeline is provided with oil eliminator; Described heat exchanger is board-like recuperator.
The beneficial effects of the utility model: automatic temperature-control low temperature cold air jet machine of the present utility model, adjust the main solenoid valve aperture by the PLC automatic control system according to the temperature parameter of outlet cold wind, thereby can be according to the cooling needs, automatically adjust the temperature of ejection cold wind, adjust temperature index and can adapt to the workpiece needs comparatively accurately, and alleviate operator's labour intensity.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described.
Fig. 1 is the utility model cooling system principle schematic;
Fig. 2 is the utility model adjustment functional-block diagram.
The specific embodiment
Fig. 1 is the utility model cooling system principle schematic, Fig. 2 is the utility model adjustment functional-block diagram, as shown in the figure: the automatic temperature-control low temperature cold air jet machine of present embodiment, comprise the refrigeration compressor 1, condenser 2, capillary group 5 and the heat exchanger 6 that are communicated with successively by the cold-producing medium flow process, cold-producing medium is back to refrigeration compressor 1 import evaporate gasification in heat exchanger 6 after; Described heat exchanger 6 is provided with cold wind import g and cold wind outlet f;
Also comprise the temperature automatic regulating system, comprising:
Cold wind temperature sensor 15 is arranged at heat exchanger 6 cold wind outlet f pipeline and is used to gather the cold wind temperature parameter;
Described condenser 2 export pipeline settings are communicated in the pressure release bypass a of refrigeration compressor 1 import, described pressure release bypass a by MEDIA FLOW to setting gradually pressure release fluid reservoir 8 and pressure release capillary group 9; Described pressure release bypass a is positioned at the order that pipeline before the inlet of pressure release fluid reservoir 8 is provided for receiving PLC controller 6 and finishes the pressure release magnetic valve 7 of regulating aperture or keying; When raising along with the prolongation environment temperature of life cycle or system radiating when relatively poor, the partial pressure that surpasses system pressure by unlatching pressure release loop removal is back to the refrigeration compressor inlet, avoid system pressure to raise, the stationarity that keeps refrigeration compressor load and system temperature, when pressure reduces with environmental change, close the pressure release bypass, guarantee the refrigeration of whole system, save drive energy, finally guarantee refrigeration compressor service life; By the rate-of flow of pressure release magnetic valve 7 control pressure release bypasses, control accuracy is high and sensitive, can control or degree of pressure controller and pressure controller are directly controlled by the PLC controller.
In the present embodiment, at the cold medium bypass b that the outlet and the pipeline setting between the capillary group 5 of condenser 2 is communicated in refrigeration compressor 1 import, described cold medium bypass b is provided with cold bypass capillary group 13; By cold bypass is set, be used for cooling refrigeration compressor 1 import medium, thereby along with the prolongation of life cycle, the refrigeration compressor temperature can unconfinedly not raise, all the time be in better running status and higher operating efficiency, save the operation energy,, can also reach the purpose of indirect adjustment cold wind temperature by adjusting cold bypass rate-of flow.
In the present embodiment, the pipeline setting between described refrigeration compressor 1 outlet and condenser 2 imports is communicated in the thermal medium bypass c of refrigeration compressor 1 import, and described thermal medium bypass c is provided with thermal bypass capillary group 11; Thermal medium bypass c is used to adjust the outlet pressure and the inlet pressure of refrigeration compressor 1, and can adjust inlet temperature, and guarantee the vaporized state of refrigeration compressor 1 import medium, prevent security incident, simultaneously, can adjust the temperature of cold wind indirectly by adjusting the thermal medium bypass; In the present embodiment, described cold medium bypass b is positioned at cold bypass capillary group 13 entrance pipes cold other magnetic valve 12 is set; Described thermal medium bypass c is positioned at thermal bypass capillary group 11 entrance pipes the other magnetic valve 10 of heat is set; By the rate-of flow of cold other magnetic valve 12 and other magnetic valve 10 each pipelines of control of heat, control accuracy is high and sensitive, can control or degree of pressure controller and temperature controller are directly controlled by the PLC controller.
In the present embodiment, the pipeline between 2 outlets of level condenser and the capillary group 5 is provided with filter 3, reaches the purpose of purification medium, and the assurance system can normally move; Described condenser 2 adopts air-cooled structure, and is simple in structure by blower fan 2a forced refrigeration as shown in the figure, and energy savings reduces equipment volume and reduces complexity.
In the present embodiment, described refrigeration compressor 1 export pipeline is provided with oil eliminator 14, is applicable to the situation that the refrigeration system temperature is lower, avoids circulating with refrigerant behind the oil liquify, and equipment is worked the mischief, and influences refrigerating efficiency; Described heat exchanger 6 is board-like recuperator, and heat exchange area is big, the efficient height.
Explanation is at last, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (6)
1. automatic temperature-control low temperature cold air jet machine is characterized in that: comprise the refrigeration compressor, condenser, capillary group and the heat exchanger that are communicated with successively by the cold-producing medium flow process, cold-producing medium is back to the refrigeration compressor import evaporate gasification in heat exchanger after; Described heat exchanger is provided with cold wind import and cold wind outlet;
Also comprise the temperature automatic regulating system, comprising:
The cold wind temperature sensor is arranged at heat exchanger cold wind export pipeline and is used to gather the cold wind temperature parameter;
Main solenoid valve is arranged at capillary group entrance pipe;
The PLC controller is used to receive the cold wind temperature sensor signal, sends control command according to received signal to main solenoid valve.
2. constant voltage refrigeration system according to claim 1 is characterized in that: the setting of described condensator outlet pipeline is communicated in the pressure release bypass of refrigeration compressor import, described pressure release bypass by MEDIA FLOW to setting gradually pressure release fluid reservoir and pressure release capillary group; Described pressure release bypass is positioned at the order that pipeline before the inlet of pressure release fluid reservoir is provided for receiving the PLC controller and finishes the pressure release magnetic valve of regulating aperture or keying.
3. constant voltage refrigeration system according to claim 2 is characterized in that: in the cold medium bypass that the outlet and the pipeline setting between the capillary group of condenser is communicated in the refrigeration compressor import, described cold medium bypass is provided with cold bypass capillary group; The cold medium bypass magnetic valve of regulating aperture or keying is finished in the order that pipeline is provided for receiving the PLC controller before the cold bypass capillary group inlet.
4. constant voltage refrigeration system according to claim 3 is characterized in that: the pipeline setting between described refrigeration compressor outlet and the condenser inlet is communicated in the thermal medium bypass of refrigeration compressor import, and described thermal medium bypass is provided with thermal bypass capillary group; Described thermal medium bypass is positioned at thermal bypass capillary group entrance pipe thermal medium bypass magnetic valve is set, and the refrigeration compressor entrance pipe is finished the adjusting aperture or opened and closed temperature controller to level thermal medium bypass magnetic valve transmission order after being provided for detecting refrigeration compressor import medium temperature.
5. constant voltage refrigeration system according to claim 4 is characterized in that: the pipeline between level condensator outlet and the capillary group is provided with filter; Described condenser adopts air-cooled structure.
6. constant voltage refrigeration system according to claim 5 is characterized in that: described refrigeration compressor export pipeline is provided with oil eliminator; Described heat exchanger is board-like recuperator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206110430U CN201866972U (en) | 2010-11-17 | 2010-11-17 | Low-temperature cold air jetting machine capable of automatically adjusting temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206110430U CN201866972U (en) | 2010-11-17 | 2010-11-17 | Low-temperature cold air jetting machine capable of automatically adjusting temperature |
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| Publication Number | Publication Date |
|---|---|
| CN201866972U true CN201866972U (en) | 2011-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206110430U Expired - Fee Related CN201866972U (en) | 2010-11-17 | 2010-11-17 | Low-temperature cold air jetting machine capable of automatically adjusting temperature |
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| CN (1) | CN201866972U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107421177A (en) * | 2017-08-10 | 2017-12-01 | 四川长虹电器股份有限公司 | Three degrees of superheat adjust the air-conditioning and its control method of electric expansion valve |
| CN107664384A (en) * | 2017-10-27 | 2018-02-06 | 重庆华晨智创数控设备有限公司 | Box body of cold air jet |
-
2010
- 2010-11-17 CN CN2010206110430U patent/CN201866972U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107421177A (en) * | 2017-08-10 | 2017-12-01 | 四川长虹电器股份有限公司 | Three degrees of superheat adjust the air-conditioning and its control method of electric expansion valve |
| CN107421177B (en) * | 2017-08-10 | 2020-06-30 | 四川长虹电器股份有限公司 | Air conditioner with three-superheat-degree adjusting electronic expansion valve and control method thereof |
| CN107664384A (en) * | 2017-10-27 | 2018-02-06 | 重庆华晨智创数控设备有限公司 | Box body of cold air jet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170626 Address after: Shiqiaopu stone Jiulongpo 400039 Yang Chongqing City Road 17 No. 77-4 wan chang international business incubator B108 city on the third floor Patentee after: Chongqing Hua Chen Junyu Technology Co. Ltd. Address before: 400039 Chongqing Jiulongpo Shiqiaopu Yuzhou Road No. 4 25-2 Patentee before: Chongqing Gaohuan S & T Co., Ltd. |
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| 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: 20110615 Termination date: 20191117 |