CN203518360U - Refrigerating system and ice cream machine - Google Patents
Refrigerating system and ice cream machine Download PDFInfo
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- CN203518360U CN203518360U CN201320423167.XU CN201320423167U CN203518360U CN 203518360 U CN203518360 U CN 203518360U CN 201320423167 U CN201320423167 U CN 201320423167U CN 203518360 U CN203518360 U CN 203518360U
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- refrigeration system
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- evaporimeter
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Abstract
The utility model discloses a refrigerating system which comprises a compressor, a condenser, a throttling device, an evaporator, a temperature sensor and an air return pipe. The compressor is sequentially connected with the condenser, the throttling device and the evaporator, one end of the air return pipe is connected with the outlet end of the evaporator, the other end of the air return pipe is connected with the inlet end of the compressor, the temperature sensor is fixedly disposed on the air return pipe, the included angle between the temperature sensor and the horizontal radial direction of the air return pipe is 45 degrees, the temperature sensor is sleeved with a heat-preserving casing in the axial direction of the air return pipe, and a waterproof material is wound on the heat-preserving casing. The refrigerating system greatly reduces fluctuation of the temperature sensor caused by refrigerating agents at the outlet end of the evaporator and influences of outside environment temperature on temperature sensing accuracy of a sensing bulb, accuracy of temperature sensing is improved, refrigerating is sufficient, and stable operation and efficient refrigerating of the system are achieved. The utility model further provides an ice cream machine which is provided with the refrigerating system.
Description
Technical field
The utility model relates to food refrigeration technical field, particularly relates to a kind of refrigeration system.The utility model also relates to a kind of ice cream maker that is equipped with this refrigeration system.
Background technology
At present, the refrigeration system of ice cream maker is generally by compressor compresses cold-producing medium and drives it in refrigeration system pipeline, to circulate, to realize congealing to ice-cream slurry.
In refrigeration system, for cryogenic object heat-shift, the pressure of cold-producing medium saturated liquid need to be dropped to below the corresponding saturation pressure of the saturation temperature lower than cryogenic object.At present, generally, at the arrival end of evaporimeter, the throttling dropping equipments such as heating power expansion valve are installed, the port of export at evaporimeter is installed temperature-sensitive bag or sensor temperature sensing device, throttling arrangement and temperature sensing device form looped system, temperature sensing device feeds back to throttling arrangement by operating modes such as the temperature of the gaseous refrigerant of evaporator outlet end, the degree of superheat, pressure, the bulbs of pressure by working medium temperature influence in temperature sensing device change the adjusting realizing the variable orifice of throttling arrangement, thereby control the refrigerant feed liquid amount of the refrigerant flow and the evaporimeter that enter throttling arrangement.
But, in current refrigeration system from evaporimeter out may be not exclusively all gaseous refrigerant, the low temperature liquid cold-producing medium not being gasified totally deposits to the bottom of muffler, temperature-sensitive bag be conventionally installed in the muffler that is connected with evaporator outlet end directly over, temperature-sensitive bag institute sensing be not the real degree of superheat of evaporimeter inner refrigerant conventionally, and be only the degree of superheat of the gaseous refrigerant that is gasified totally of top, and then cause and enter not synchronous coordination of the refrigerant flow of throttling arrangement and the real degree of superheat of evaporimeter inner refrigerant, refrigeration system just there will be deviation to entering the adjusting of the refrigerant flow of throttling arrangement.
In addition, because lacking heat-insulation and heat-preservation, processes by temperature-sensitive bag, the operating mode of its inner temperature-sensitive working medium is not only subject to the impact of the refrigerant flow fluctuation of evaporator outlet end, also be subject near the impact of the ambient temperature of refrigeration system simultaneously, so often there will be, temperature-sensitive is inaccurate or fluctuation is frequent, thereby cause the refrigerant flow and the pressure transient that enter in throttling arrangement, impact is from the degree of superheat of evaporimeter cold-producing medium out, finally make cold-producing medium in evaporimeter, evaporate not exclusively, refrigeration is not good, evaporimeter on-gaseous cold-producing medium out even can cause compressor liquid hit phenomenon.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of refrigeration system can reduce the impact of ambient temperature fluctuation on refrigerant temperature induction, improve the accuracy of temperature sense, the flow and the temperature that according to working conditions change, automatically regulate cold-producing medium thermal cycle, realize system run all right and highly effective refrigeration.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: a kind of refrigeration system is provided, comprise compressor, condenser, throttling arrangement, evaporimeter, temperature sensing device and muffler, described compressor is connected successively with described condenser, described throttling arrangement and described evaporimeter, one end of described muffler connects the port of export of described evaporimeter, the other end connects the arrival end of described compressor, and described compressor, described condenser, described throttling arrangement and described evaporimeter form closed circulation system; Wherein, described temperature sensing device is fixedly installed on described muffler, and is 45 degree angles with the horizontal radial direction of described muffler; Described temperature sensing device has thermal insulation casing along cover on the axial direction of described muffler, on described thermal insulation casing, is tied with waterproof material.
Preferably, described refrigeration system further comprises blast pipe, and one end of described blast pipe connects the port of export of described compressor, and the other end connects the arrival end of described condenser.
Preferably, described refrigeration system further comprises that filter and condenser go out pipe, and the port of export of described filter is connected with the arrival end of described throttling arrangement; One end that described condenser goes out pipe connects the port of export of described condenser, and the other end connects the arrival end of described filter.
Preferably, described throttling arrangement is heating power expansion valve.
Preferably, described evaporimeter comprises inner cylinder body, outer cylinder body, spiral pipe and foaming body, described outer cylinder body is sheathed on the outside of described inner cylinder body and coaxially installs with described inner cylinder body, described spiral pipe is wound between described inner cylinder body and described outer cylinder body regularly, and described foaming body wraps up the outer surface of described outer cylinder body.
Preferably, described spiral pipe is spring, and its cross section is square, rectangle, trapezoidal or arc line shaped.
Preferably, described temperature sensing device is temperature-sensitive bag, and the temp.-sensing wire of described temperature-sensitive bag is connected with described throttling arrangement.
Preferably, described temperature-sensitive wraps in the described evaporator outlet end of the installation site distance 100～200mm of described muffler.
Preferably, described waterproof material is adhesive waterproof tape.
For solving the problems of the technologies described above, another technical scheme that the utility model adopts is: a kind of ice cream maker is provided, and described ice cream maker is equipped with above-mentioned refrigeration system, for the ice-cream slurry that congeals.
The beneficial effects of the utility model are: the situation that is different from prior art, the temperature sensing device of refrigeration system of the present utility model is 45 ° of angle directions with the horizontal radial with muffler and is arranged on muffler, and carry out heat-insulation and heat-preservation processing, greatly reduce cold-producing medium fluctuation and the impact of ambient temperature on temperature-sensitive bag temperature sense accuracy that temperature sensing device is subject to evaporator outlet end, improved the accuracy of temperature sensing, can automatically regulate according to the variation of evaporimeter thermic load the flow of cold-producing medium thermal cycle, guarantee that refrigeration system refrigeration is sufficient, prevent that liquid hit phenomenon from appearring in compressor, realize system run all right and highly effective refrigeration.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model refrigeration system one embodiment.
Fig. 2 is the structural representation of evaporimeter in Fig. 1.
Fig. 3 is the enlarged diagram of temperature sensing device in Fig. 1.
Fig. 4 is the installation side view of temperature sensing device in Fig. 1.
The specific embodiment
Consult Fig. 1, the utility model one embodiment provide a kind of refrigeration system, comprise compressor 1, blast pipe 2, condenser 3, condenser goes out pipe 4, filter 5, throttling arrangement 6, evaporimeter 7, temperature sensing device 8 and muffler 9, compressor 1 and condenser 3, throttling arrangement 6 and evaporimeter 7 connect successively, one end of blast pipe 2 connects 1 port of export of compressor, the other end connects the arrival end of condenser 3, condenser goes out the port of export of one end connection condenser 3 of pipe 4, the other end connects the arrival end of filter 5, the port of export of filter 5 is connected with the arrival end of throttling arrangement 6, one end of muffler 9 connects the port of export of evaporimeter 7, the other end connects the arrival end of compressor 1, compressor 1, condenser 3, throttling arrangement 6 and evaporimeter 7 form closed circulation system, cold-producing medium is Continuous Heat Transfer in closed circulation system, thereby realize refrigerating function.
Particularly, in the present embodiment, compressor 1 is that low back pressure is pressed compressor, adopts R22 or R404A refrigerant type, piston compressor or the screw compressor of power between 1～2.The material of blast pipe 2 is copper tube, and cold working bends moulding, and specification is Φ 9.52*0.7mm or Φ 12.7*0.8mm light pipe, for being connected between compressor 1 and condenser 3.Condenser 3 is copper pipe fin type condenser, also can select micro-channel condenser, for high temperature and high pressure gaseous refrigerant is condensed into liquid refrigerant.The material that condenser goes out pipe 4 is copper tube, and cold working bends moulding, and specification is Φ 9.52*0.7mm or Φ 12.7*0.8mm light pipe, for being connected between condenser 3 and throttling arrangement 6.Filter 5 is selected corresponding suitable types by flow, for cold-producing medium is carried out to dry filter.Throttling arrangement 6 is heating power expansion valve, is preferably Danfoss heating power expansion valve, for being low-temp low-pressure liquid refrigerant by the liquid cold-producing medium throttling of HTHP, and makes it to enter the smooth evaporation endothermic of evaporimeter 7, realizes refrigerating function.The material of muffler 9 is copper tube, and cold working bends moulding, and specification is Φ 12.7*0.8mm light pipe, for being connected between evaporimeter 7 and compressor 1.
Refer to Fig. 2, Fig. 2 is the structural representation of the evaporimeter 7 of the utility model embodiment, and evaporimeter 7, for the heat exchange between low-temp low-pressure liquid refrigerant and slurry, makes slurry in evaporimeter 7, be cooled to-4～～-6 ℃.Evaporimeter 7 comprises inner cylinder body 701, outer cylinder body 702, spiral pipe 703 and foaming body 704, inner cylinder body adopts the thick stainless steel of 2mm to make, and has good heat conductivity, and slurry heat conducts to cold-producing medium by inner cylinder body 701 casing walls, thereby realize heat exchange, reduce the object of slurry temperature.Outer cylinder body 702 is sheathed on the outside of inner cylinder body 701 and coaxially installs with inner cylinder body 701, and two ends seal with end plate, formation cold-producing medium evaporation cavity.Spiral pipe 703 is wound between inner cylinder body 701 and outer cylinder body 702 regularly, forms coolant channel.The outer surface of foaming body 704 parcel outer cylinder bodies 702, for heat-insulation and heat-preservation.Wherein, spiral pipe 703 is spring, and its cross section is square, rectangle, trapezoidal or arc line shaped.When refrigeration system is freezed, in the coolant channel that cold-producing medium forms between spiral pipe 703 and inner cylinder body 701, outer cylinder body 702, flow, carry out heat exchange with slurry, special construction due to spiral pipe 703, the contact area of other working medium such as slurry in cold-producing medium and inner cylinder body 701 increases greatly, increased heat exchange area, thereby the heat exchanger effectiveness of evaporimeter 7 is improved, refrigerating speed and the effect of refrigeration system promote greatly.
Please further consult Fig. 3 and Fig. 4, temperature sensing device 8 is temperature-sensitive bag, the temp.-sensing wire 8a of temperature-sensitive bag 8 is connected with the capillary (not shown in FIG.) of heating power expansion valve 6, the interior filling working medium of temperature-sensitive bag 8, the pressure of working medium changes along with the change of evaporimeter 7 refrigerant superheat degree out, and act on heating power expansion valve 6, with this, control the aperture of heating power expansion valve 6.
Specifically, when refrigeration system is worked, if relatively high from evaporimeter 7 refrigerant superheat degree out, cold-producing medium is by being arranged on the temperature-sensitive bag 8 of evaporimeter 7 ports of export, working medium expanded by heating in temperature-sensitive bag 8, the pressure bringing that expands discharges to heating power expansion valve 6 by temp.-sensing wire 8a, and the aperture of heating power expansion valve 6 increases, the refrigerant flow that enters throttling arrangement 6 increases, thereby the refrigerant flow that enters evaporimeter 7 is also increased thereupon.Otherwise, when if the refrigerant superheat degree of evaporimeter 7 ports of export is on the low side, the refrigerant flow that enters throttling arrangement 6 reduces under the regulating action of temperature-sensitive bag 8, and the refrigerant flow that enters evaporimeter 7 is corresponding reducing also, thereby realize, automatically regulates the refrigerant flow that enters evaporimeter 7.
As shown in Figures 3 and 4, temperature-sensitive bag 8 is cylindric, be fixedly installed on muffler 9, temperature-sensitive bag 8 in the installation site of muffler 9 apart from evaporimeter 7 port of export 100～200mm.The outside of temperature-sensitive bag 8 and muffler 9 is wrapped with band 10 in the radial direction along temperature-sensitive bag 8, and band 10 is fixed as one temperature-sensitive bag 8 and muffler 9, and the two ends of band 10 fix by bolt 11.Temperature-sensitive bag 8 has thermal insulation casing 12 along cover on the axial direction of muffler 9, and thermal insulation casing 12 adopts insulation foam to make, and is tied with waterproof material 13 on thermal insulation casing 12, and waterproof material 13 is adhesive waterproof tape.
Please continue to refer to Fig. 4, temperature-sensitive bag 8 is located at the position that is α=45 ° along the horizontal radial direction of muffler 9, the joint effect of the low temperature liquid cold-producing medium that temperature is not herein gasified totally and the gaseous refrigerant being gasified totally, temperature-sensitive bag 8 the refrigerant superheat degree of this sensing compared with muffler 9 directly over position relatively more close to the real degree of superheat of cold-producing medium of evaporimeter 7 ports of export, thereby reduced the fluctuation of evaporimeter 7 inner refrigerants on the temperature sensing of temperature-sensitive bag 8 and on entering the impact of the refrigerant flow adjusting of throttling arrangement 6, simultaneously because thermal insulation casing 12 is isolated temperature-sensitive bag 8 and the surrounding enviroment outside refrigeration system, the thermal insulation that thermal insulation casing 12 is good makes temperature-sensitive bag 8 avoid the impact of surrounding enviroment temperature, the accuracy of temperature sense promotes greatly.The adhesive waterproof tape 13 being fixed on thermal insulation casing 12 has further increased thermal insulation and the fixing stability of temperature-sensitive bag 8, has also guaranteed that temperature-sensitive bag 8 avoids liquid medium such as the erosion of water simultaneously, has more effectively promoted the accuracy of measurement of inductance.
In addition, the utility model also provides a kind of ice cream maker, and this ice cream maker is equipped with above-mentioned refrigeration system, for the ice-cream slurry that congeals.
Be different from prior art, the temperature sensing device of refrigeration system of the present utility model is 45 ° of angle directions with the horizontal radial with muffler and is arranged on muffler, and carry out heat-insulation and heat-preservation processing, greatly reduce cold-producing medium fluctuation and the impact of ambient temperature on temperature-sensitive bag temperature sense accuracy that temperature sensing device is subject to evaporator outlet end, improved the accuracy of temperature sensing, can automatically regulate according to the variation of evaporimeter thermic load the flow of cold-producing medium thermal cycle, guarantee that refrigeration system refrigeration is sufficient, prevent that liquid hit phenomenon from appearring in compressor, realize system run all right and highly effective refrigeration.Meanwhile, evaporimeter employing spiral pipe of the present utility model is wound in the structure of inner cylinder body and outer cylinder body, has greatly increased the contact area of cold-producing medium and evaporimeter, has effectively improved heat exchanger effectiveness, thereby has promoted the refrigeration of system.
The foregoing is only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model description and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (10)
1. a refrigeration system, it is characterized in that, comprise compressor, condenser, throttling arrangement, evaporimeter, temperature sensing device and muffler, described compressor is connected successively with described condenser, described throttling arrangement and described evaporimeter, one end of described muffler connects the port of export of described evaporimeter, the other end connects the arrival end of described compressor, and described compressor, described condenser, described throttling arrangement and described evaporimeter form closed circulation system;
Wherein, described temperature sensing device is fixedly installed on described muffler, and is 45 degree angles with the horizontal radial direction of described muffler; Described temperature sensing device has thermal insulation casing along cover on the axial direction of described muffler, on described thermal insulation casing, is tied with waterproof material.
2. a kind of refrigeration system according to claim 1, is characterized in that, described refrigeration system further comprises blast pipe, and one end of described blast pipe connects the port of export of described compressor, and the other end connects the arrival end of described condenser.
3. a kind of refrigeration system according to claim 1, is characterized in that, described refrigeration system further comprises that filter and condenser go out pipe, and the port of export of described filter is connected with the arrival end of described throttling arrangement; One end that described condenser goes out pipe connects the port of export of described condenser, and the other end connects the arrival end of described filter.
4. a kind of refrigeration system according to claim 1, is characterized in that, described throttling arrangement is heating power expansion valve.
5. a kind of refrigeration system according to claim 1, it is characterized in that, described evaporimeter comprises inner cylinder body, outer cylinder body, spiral pipe and foaming body, described outer cylinder body is sheathed on the outside of described inner cylinder body and coaxially installs with described inner cylinder body, described spiral pipe is wound between described inner cylinder body and described outer cylinder body regularly, and described foaming body wraps up the outer surface of described outer cylinder body.
6. a kind of refrigeration system according to claim 5, is characterized in that, described spiral pipe is spring, and its cross section is square, rectangle, trapezoidal or arc line shaped.
7. a kind of refrigeration system according to claim 1, is characterized in that, described temperature sensing device is temperature-sensitive bag, and the temp.-sensing wire of described temperature-sensitive bag is connected with described throttling arrangement.
8. a kind of refrigeration system according to claim 7, is characterized in that, described temperature-sensitive wraps in the described evaporator outlet end of the installation site distance 100～200mm of described muffler.
9. a kind of refrigeration system according to claim 1, is characterized in that, described waterproof material is adhesive waterproof tape.
10. an ice cream maker, is characterized in that, described ice cream maker is equipped with according to the refrigeration system described in claim 1-9 any one claim, for the ice-cream slurry that congeals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320423167.XU CN203518360U (en) | 2013-07-09 | 2013-07-09 | Refrigerating system and ice cream machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320423167.XU CN203518360U (en) | 2013-07-09 | 2013-07-09 | Refrigerating system and ice cream machine |
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| Publication Number | Publication Date |
|---|---|
| CN203518360U true CN203518360U (en) | 2014-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320423167.XU Expired - Fee Related CN203518360U (en) | 2013-07-09 | 2013-07-09 | Refrigerating system and ice cream machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104279803A (en) * | 2013-07-09 | 2015-01-14 | 广东海川科技有限公司 | Refrigerating system and ice cream maker |
| CN109099608A (en) * | 2018-08-31 | 2018-12-28 | 江门市新会区康美制品有限公司 | A kind of refrigerating system of ice cream maker |
-
2013
- 2013-07-09 CN CN201320423167.XU patent/CN203518360U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104279803A (en) * | 2013-07-09 | 2015-01-14 | 广东海川科技有限公司 | Refrigerating system and ice cream maker |
| CN109099608A (en) * | 2018-08-31 | 2018-12-28 | 江门市新会区康美制品有限公司 | A kind of refrigerating system of ice cream maker |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20140402 Termination date: 20210709 |