CN1088180C - Refrigerating apparatus - Google Patents
Refrigerating apparatus Download PDFInfo
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- CN1088180C CN1088180C CN 94117332 CN94117332A CN1088180C CN 1088180 C CN1088180 C CN 1088180C CN 94117332 CN94117332 CN 94117332 CN 94117332 A CN94117332 A CN 94117332A CN 1088180 C CN1088180 C CN 1088180C
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- compressor
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- refrigerant
- producing medium
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Abstract
The present invention discloses a refrigeration device. The mixture of refrigerants is adopted by the refrigeration device. The refrigeration device is provided with a refrigerant controller which controls the ratio of all the refrigerants to regulate refrigeration quantity during a refrigeration working condition period. The device also comprises a compressor whose rotary speed is controlled so that the refrigeration quantity is provided according to requirement. When the rotary speed of the compressor is lowered to be lower than a set lower limit value, or is increased to be higher than the set lower limit value, the ratio of all the refrigerants is controlled by the refrigerant controller.
Description
The present invention relates to a kind of refrigerating plant that adopts refrigerant mixture, more particularly, relate to the ratio between the various cold-producing mediums of control so that regulate the refrigerating plant of refrigerating capacity.
Fig. 1 shows a kind of typical refrigerating plant, and it comprises a compressor 101, indoor heat converter 103, a pressure reducer 105 and an outdoor heat converter 107.
In cooling condition, indoor heat converter 103 is as evaporimeter, and outdoor heat converter 107 is as condenser.The cold-producing medium of being discharged by compressor 101 is continued to use direction that dotted arrow represents flow through outdoor heat converter 107, pressure reducer 105 and indoor heat converter 103, then working medium again stream turn back to compressor 101.
Refrigerating plant shown in Figure 1 is a kind of heat pump type refrigerating device, and it comprises a cross valve 109.In order to finish heat supply running, cross valve 109 is switched to indoor heat converter 103 as condenser, and with the situation of outdoor heat converter 107 as evaporimeter.Continue to use direction flow path indoor heat converter 103, pressure reducer 105 and the outdoor heat converter 107 that solid arrow is represented by the cold-producing medium that compressor 101 is discharged.Then, working medium is returned in the compressor 101 again.
The refrigeratory capacity of refrigerating plant is by the capacity decision of compressor 101.In order to increase the refrigeratory capacity of device, the running speed of compressor 101 should be very high, perhaps must replace compressor in the original device with a more jumbo compressor.
In refrigerating plant, can adopt the mixture of low boiling point refrigerant and higher boiling cold-producing medium.Compare with low boiling point refrigerant, the higher boiling cold-producing medium has higher boiling point, and its condensation temperature is higher under identical condensing pressure.That is to say, the higher boiling cold-producing medium can be sent into high temperature air and be transferred in the space, even the pressure at expulsion of compressor 101 is not very high, the higher boiling cold-producing medium also has high condensation temperature, high temperature air can be sent into and be transferred in the space, thereby can improve the heat capacity of refrigerating plant.
But there is a shortcoming in the higher boiling cold-producing medium.When environment temperature is low, for the internal circulating load that increases refrigerant mixture so that increase heat capacity, the running speed of compressor 101 is very high.In this case, the specific volume of the higher boiling cold-producing medium that evaporates in the evaporimeter (outdoor heat converter 107) becomes very big, thereby has increased the pressure loss of the suction line between evaporimeter 107 and the compressor 101.Therefore, even the running speed of compressor 101 increases, the inspiratory capacity of compressor 101 does not increase.
On the other hand, the specific volume of the low boiling point refrigerant that evaporates in the evaporimeter is very little, and therefore, under the identical situation of the capacity of compressor 101, the internal circulating load of low boiling point refrigerant is bigger.Consequently improved the efficient of heat supply operating mode.When environment temperature is low when having reduced heat capacity, the ratio of increase low boiling point refrigerant and higher boiling cold-producing medium is favourable.But under the condition of identical condensation temperature, low boiling point refrigerant demonstrates higher condensing pressure, and therefore, if at high temperature discharge low boiling point refrigerant, the pressure at expulsion of compressor 101 will be above desired force value.
The objective of the invention is to provide a kind of refrigerating plant, and this device has effectively utilized the characteristic of mix refrigerant, thereby need not to adopt the performance that can improve cooling condition under the condition of big capacity compressor.
In order to finish above-mentioned purpose, the invention provides a kind of refrigerating plant that uses mix refrigerant, and adopted a kind of refrigerant controller of controlling ratio between each cold-producing medium, so that the refrigerating capacity during the adjusting cooling condition.
For refrigerating capacity is provided on demand, the inventive system comprises the compressor that to control rotating speed.Below the rotating speed of compressor is reduced to the lower limit of setting or when being increased to the higher limit that is higher than setting, above-mentioned refrigerant controller is controlled the ratio between each cold-producing medium.
Said apparatus can be controlled the capacity of compressor effectively, makes it change to heap(ed) capacity from minimum capacity.
When compressor turned round under minimum capacity, refrigerant controller increased the ratio of higher boiling cold-producing medium and low boiling point refrigerant, thereby the specific volume of refrigerant mixture is increased.The capacity that has consequently suppressed compressor.
When compressor turned round under heap(ed) capacity, the refrigerated medium controller had increased the ratio of low boiling point refrigerant and higher boiling cold-producing medium, thereby had reduced the specific volume of refrigerant mixture.Consequently, under the condition that does not adopt big capacity compressor, strengthened the capacity of compressor.
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described in detail, above-mentioned purpose of the present invention and other purposes, characteristics and superiority will more clearly embody by following description.
Fig. 1 shows the refrigerating plant of a kind of unitary system cryogen of existing employing;
Fig. 2 shows the refrigerating plant of one embodiment of the present of invention;
The characteristic curve of Fig. 3 for concerning between the ratio between reflection refrigerating capacity and each cold-producing medium;
Fig. 4 shows the temperature of controlled space during the heat supply operating mode;
Fig. 5 shows the relation between rotating speed and the refrigerating capacity;
Fig. 6 is the remodeling of refrigerating plant shown in Figure 2, and capillary is housed around its hold-up vessel;
Fig. 7 shows the remodeling of refrigerating plant shown in Figure 2, and some pressure reducers are housed around its hold-up vessel;
Fig. 8 shows the remodeling of refrigerating plant shown in Figure 2, and it comprises the cold-producing medium heater of a tape controller;
Fig. 9 shows the remodeling of refrigerating plant shown in Figure 2, and the vapor phase refrigerant circulation duct is housed on its hold-up vessel;
Figure 10 shows the remodeling of refrigerating plant shown in Figure 2, and gas phase and liquid phase refrigerant circulation duct are housed respectively on its hold-up vessel;
Figure 11 shows the refrigerating plant that adopts emission type (release type) compressor among the present invention;
Figure 12 shows the characteristic curve of device shown in Figure 11;
Figure 13 shows the essential part of emission type compressor of the present invention;
Figure 14 shows the working order of compressor shown in Figure 13;
Figure 15 shows the working order of compressor shown in Figure 13.
Fig. 2 to Fig. 9 understands an embodiment of refrigerating plant of the present invention in detail.
Refrigerating plant shown in Figure 2 is made for the usefulness of air pump type air conditioner, and it adopts higher boiling and low boiling point refrigerant mixture.This refrigerating plant comprises the compressor 1 of a band air-suction cover 3, cross valve 5, indoor heat converter 7, a container 9 as refrigerant controller, a pressure reducer 11 and an outdoor heat converter 13.Above-mentioned parts are connected with each other by refrigerant line 15.
Fig. 3 shows the relation between the ratio between refrigerating capacity and cold-producing medium.Ratio at low boiling point refrigerant and higher boiling cold-producing medium is the X place, and corresponding refrigerating capacity coordinate points is 100%.When the ratio of low boiling point refrigerant and higher boiling cold-producing medium was increased to the Z district, refrigerating capacity increased.Otherwise when the ratio of low boiling point refrigerant and higher boiling cold-producing medium was reduced to the Y district, refrigerating capacity reduced.Refrigerant mixture in the present embodiment is a kind of zeotrope.
Fig. 5 shows the rotating speed of compressor 1 and the relation between the refrigerating capacity.Poor according to predetermined space temperature and real space temperature, the running speed scope of compressor 1 is about 10-120Hz.Compressor 1 sucks the gaseous refrigerant mixture by air-suction cover 3 and discharges the refrigerant mixture gas of HTHP.
When indoor heat converter 7 was used as evaporimeter, its received the vaporific low-temperature low-pressure refrigerant gas mixture from pressure reducer 11.Indoor fan 17 blows to indoor heat converter 7 with air, and the cold-producing medium in the indoor heat converter 7 absorbs airborne latent heat and is evaporated, thereby cool stream is crossed the air of the fin of indoor heat converter 7.Indoor fan 17 with chilled air be blown into transferred house between.
When indoor heat converter 7 was used as condenser, its received the HTHP refrigerated medium gas mixture from compressor 1.Indoor fan 17 blows to indoor heat converter 7 with air, and this part absorption of air flows through the latent heat of the refrigerant mixture of indoor heat converter 17, and therefore, refrigerant mixture becomes vaporific, simultaneously, and between the air that indoor fan 17 will heat is blown into and is transferred house.
Above-mentioned cold-producing medium heater 19 has a heat-transfer pipe 21 that allows refrigerant mixture to flow through.The pipe 21 be wrapped in container 9 around.One end of pipe 21 communicates through the exhaust outlet of control valve 23 with compressor 1; Pipe 21 the other end and refrigerant line 15 promptly with indoor heat converter 7 and pressure reducer 11 between fluid pipeline 15a link to each other.The high-temperature high-pressure refrigerant gas mixture of being discharged by compressor 1 flows through pipe 21.
The signal that controller 27 receives as the air conditioner load sensor S of temperature sensor and so on sends is to control the rotating speed of compressor 1.This controller 27 is also according to the aperture that concerns adjusting control valve 23 between air conditioner load and compressor 1 rotating speed.Controller 27 is in the heating-up temperature that makes low boiling refrigerated medium evaporation and make the temperature of control container 9 between the heating-up temperature of higher boiling cold-producing medium evaporation.That is to say, the refrigerant mixture amount that is stored in the container 9 is regulated to regulate actual ratio of participating between the high and low boiling point cold-producing medium that circulates in the refrigerating plant.
Fig. 8 shows a kind of remodeling embodiment illustrated in fig. 2.A cold-producing medium heater 30 suitable with cold-producing medium heater 19 is housed in the container 9.Heater 30 is by controller 29 controls.This remodeling can be controlled the heating-up temperature of refrigerant mixture exactly, and the ratio of desired high low boiling point refrigerant can just be provided from the refrigerating plant entry into service.
Referring to Fig. 2, pressure reducer 11 is atomized into the low-temp low-pressure mist with refrigerant mixture again.Can control pressure reducer 11 according to the signal that the refrigerant temperature sensors 31 that is installed in compressor 1 suction side is sent.In this case, pressure reducer 11 is regulated the flow velocity of refrigerant mixture according to the service condition such as thermic load.
When outdoor heat converter 13 was used as condenser, its received high-temperature high-pressure refrigerant gas mixture.Outdoor fan 33 blows to outdoor heat converter 13 with air, the latent heat of this part absorption of air refrigerant mixture, and the result is condensed into liquid with refrigerant mixture, and the air that has absorbed latent heat blows to the outside by outdoor fan 33.
During the heat supply operating mode, indoor heat converter 7 is as condenser, and outdoor heat converter 13 is as evaporimeter, and the refrigerant mixture of being discharged by compressor 1 flow through indoor heat converter 7, pressure reducer 11, outdoor heat converter 13 return compressor 1.When the heat supply operating mode began, the ratio of high low boiling point refrigerant was an initial value when being sealed in the cold-producing medium in the refrigerating plant.
If the room temperature TS (Fig. 4) that is scheduled to during the heat supply operating mode increases with the difference of actual room temperature, controller 27 sends signal, therefore make control valve 23 standard-sized sheets, the high-temperature high-pressure refrigerant gas of discharging from compressor 1 heat-transfer pipe 21 of flowing through is stored in refrigerant mixture the container 9 with heating.
Because the internal pressure of heating and container 9, the low boiling refrigerated medium in the container 9 is evaporated and flows into pipeline 15.The result has increased the ratio of higher boiling cold-producing medium and low boiling point refrigerant in the container 9.On the other hand, in the refrigerated medium mixture that circulates in refrigeration system, low boiling point refrigerant increases to Z district (Fig. 3 and 4) with the ratio of higher boiling cold-producing medium, thereby has improved heating efficiency.
Like this, the air that flows through the fin of the indoor heat converter 7 that is used as condenser is heated effectively, and as hot blast be admitted to transferred house between.
The refrigerant mixture of the outdoor heat converter 13 that is used as evaporimeter of flowing through has absorbed the latent heat of the atmosphere of the fin of blowing over this outdoor heat exchange 13.Because the influence of this portion of hot, the refrigerant mixture in the outdoor heat converter 13 is gas by vaporific becoming.In the gas, low boiling point refrigerant strengthens with the ratio of higher boiling cold-producing medium in this section, thereby has reduced the specific volume of the refrigerant mixture that has evaporated.That is to say that the amount of refrigerated medium mixture increases with respect to the capacity of compressor 1, therefore can improve room temperature rapidly.
When actual room temperature during near reservation temperature T S, its temperature difference diminishes, and the running speed of compressor 1 reduces the rotating speed according to compressor, the flow velocity of the aperture restriction high temperature refrigerant mixture of control valve 23.Therefore, change to Y district (seeing Fig. 3 and Fig. 4) between the high low boiling point refrigerant than from the X district, thereby reduced heating efficiency.
During the cooling operating mode, indoor heat converter 7 is as evaporimeter, and outdoor heat converter 13 is as condenser.Compressor 1 sucks and the compression refrigeration agent composition, and the high-temperature high-pressure refrigerant gas mixture is entered condenser, promptly enters outdoor heat converter 13.The latent heat of refrigerant mixture is by the Atmospheric Absorption of the fin that flows through outdoor heat converter 13, and therefore, refrigerant mixture is liquefied.
The liquid refrigeration agent composition flows into pressure reducer 11, makes cold-producing medium expand into the atomized refrigerant of low-temp low-pressure rapidly.Above-mentioned atomized refrigerant inflow evaporator (that is, indoor heat converter 7), therefore cold-producing medium, makes above-mentioned atomized refrigerant gasification from the air of the fin that flows through above-mentioned indoor heat converter 7 and absorb heat in this evaporimeter, and this part air is cooled.Chilled air is admitted to is transferred the space, and is sent to compressor 1 through the cold-producing medium of gasification.In the cooling operating mode, repeat said process.
In the cooling operating mode, as shown in Figure 5, the rotary speed of compressor 1 is 30-100Hz, so that big refrigerating capacity is provided.When the difference between the actual room temperature of predetermined temperature TS was big, controller 27 sent signal, and control valve 23 standard-sized sheets make heater 19 heating containers 9.The higher boiling refrigerated medium increases with the ratio of low boiling point refrigerant in container 9.On the other hand, participate in the refrigerant mixture of circulation in reality, the low boiling refrigerated medium increases in the Z district with the ratio that height mixes the point refrigeration agent.
When the above-mentioned temperature difference diminished, according to the rotating speed of compressor 1, the ratio of high low boiling point refrigerant changed to the X district, and then changes to the Y district, causes the capacity of compressor 1 to reduce.As shown in Figure 5, the cold-producing medium ratio that refrigerating plant of the present invention adopts at work is A, B, and C and D are Q so that it has refrigerating capacity
2Refrigerating capacity, Q
2Than conventional refrigerating capacity scope Q
1Wide.Running by this way, in cooling and heat supply operating mode, compressor 1 can cut down the consumption of energy, efficiently running under the prerequisite of noise, vibration and wearing and tearing.
Fig. 6 shows a kind of remodeling on basis embodiment illustrated in fig. 2.The capillary 35 of different shrinkage ratios is housed, so that internal pressure the best of low boiling point refrigerant in the container 9 near container 9.Pipeline 39 extends to the kind of refrigeration cycle from the top of container 9.The refrigerant mixture part that has gasified in the container 9 is by being loaded on non-return valve 37 unidirectional the entering in the kind of refrigeration cycle on the pipeline 39.This structure can accurately be controlled the ratio of high low boiling point refrigerant in the container 9, thereby has improved the control performance of cooling operating mode.
Fig. 7 shows another remodeling of embodiment shown in Fig. 2.Upstream and downstream at container 9 all is equipped with pressure reducer 11.Controller 42 is controlled above-mentioned pressure reducer 11 according to the rotating speed of air conditioner load, refrigerant temperature or compressor 1, so that the flow of refrigerant mixture reaches best.The combination that is used to control the heater 19 of two pressure reducers 11 of flow of the refrigerant mixture that flows into container 9 and flow out from container 9 and the refrigerant mixture in the heating container 9 can make the low boiling point refrigerant gasification efficiently, control the amount of liquid refrigerant in the container 9 exactly, and can regulate the actual ratio of participating in the high low boiling point refrigerant of circulation in the refrigerating plant according to the service condition of compressor 1, make it reach best.
Fig. 9 shows another remodeling embodiment illustrated in fig. 2.For the vapor phase refrigerant mixture is flow through, container 9 is installed on the pipeline 15b of compressor 1 suction side.
Be wound with heat-transfer pipe 41 on the said vesse 9, a pipe end of 41 communicates with the suction side of compressor 1, and its other end links to each other with bypass pipe 43 between first control valve 45 and second control valve 47.Pipe 41 can link to each other with the gas injection tube that stretches out from compressor 1 with that end that compressor 1 suction side communicates.
The aperture that controller 46 is controlled first and second control valves 45 and 47 according to the rotating speed or the air conditioner load of compressor 1.One end of bypass pipe 43 communicates with the exhaust side of compressor 1, and the other end communicates with pipeline between indoor heat converter 7 and the outdoor heat converter 13.
When the cold-producing medium in the container 9 all gasified, oil return pipe 49 will import in the container 9 from the lubricant of compressor 1.
During the heat supply operating mode, the refrigerant mixture of discharging from compressor 1 is along solid arrow direction flow through indoor heat converter 7, pressure reducer 11 and outdoor heat converter 13, and then turns back to compressor 1.
In the heat supply operating mode,, can open second control valve 47 and close first control valve 45 according to the rotating speed or the air conditioner load of compressor 1 for the refrigerant gas cooled containers 9 that flows through pipe 41.The result can be collected in liquid phase higher boiling cold-producing medium in the container 9, thereby has increased the ratio of low boiling point refrigerant and higher boiling cold-producing medium in the refrigerant mixture of the actual cycle that flows through refrigerating plant.
If first control valve 45 is opened, second control valve 47 to be closed, the high-temperature high-pressure refrigerant gas flowing pipe 41 that flows out from compressor 1 is so that heater 9.This will cause the whole liquid refrigerant gasifications in the container 9, thereby make the ratio of high low boiling point refrigerant return the former initial value that is sealed in the refrigerated medium mixture in the device.
Like this, regulate the best median that first and second control valves 45 and 47 can obtain the ratio of step-down boiling point cold-producing medium.
Figure 10 shows another remodeling, and it is the combination of Fig. 8 and structure shown in Figure 9.Structure shown in Figure 10 can be controlled ratio between the high low boiling point refrigerant in a wide range according to service condition.
Figure 11 shows the refrigerating plant that has adopted emission type compressor 55 according to the present invention.
Compressor 55 has a plurality of cylinders, and wherein the cylinder chamber of adjacent cylinder communicates with each other through pipeline 51.When normal operation, pipeline 51 is closed by open/close mechanism 53 and 54, when the capacity of compressor 55 reduces, by mechanism 53 and 54 pipeline 51 is open-minded.According to the switching manipulation of mechanism 53 and 54, can control the ratio of participating in the high low boiling point refrigerant of circulation in the refrigerating plant as the container 9 of refrigerant controller.
Figure 12 shows the comparative result between prior art and the present invention.The refrigerating capacity scope of prior art is Q
1, and refrigerating capacity scope of the present invention is for being wider than Q
1Q
2Wide refrigerating capacity scope of the present invention realizes by adopting refrigerated medium mixture and emission type compressor.
Figure 13-Figure 15 shows the emission type compressor 59 that is applicable to refrigerating plant of the present invention.
Available mechanical means is adjusted the capacity of compressor 59.The combine controlled range of the refrigerating capacity of having widened refrigerating plant of the ratio that mechanical means is controlled the capacity of compressor 59 and each cold-producing medium of control.
Compressor 59 has an aiding support 61, to form cylinder body cavity 60.This aiding support 61 has a floss hole 63.When compressing when above-mentioned cylinder body cavity 60 suction refrigerant mixtures and with it, the part refrigerant mixture is bypassed to low-pressure side by floss hole 63, whereby, can reduce the capacity of compressor 59.
Compressor 59 has 73, delivery pipes 75 of 71, one non-return valves of 69, one inhalation masks of 67, axles of 65, one cylinder bodies of a skeleton and a rotor 77.
Working condition to compressor 59 describes below.
Among Figure 14, between floss hole 63 and delivery pipe 75, non-return valve 73 is housed.When the pressure at floss hole 63 places is higher than pressure in the delivery pipe 75, promptly open as valve A, valve B closes so that delivery pipe 75 when communicating with low-pressure side, and refrigerant mixture is bypassed to low-pressure side from compression chamber 60, has reduced compressed refrigerant mixture amount whereby.A closes when valve.When valve B opened, delivery pipe 75 communicated with the high-pressure side.Because high pressure, non-return valve 73 is closed, and cold-producing medium does not have bypass, and therefore, the normal capacity that provides by volume of cylinder is provided compressor 59.
Figure 15 shows the operational circumstances of floss hole 63.Rotor 77 eccentric rotations, for a certain given corner, the face opening floss hole 63 of rotor 77, simultaneously, the above-mentioned end face of rotor 77 is just leaving this floss hole 63, and refrigerant mixture is discharged into low-pressure side.When the above-mentioned end face of rotor 77 was closed floss hole 63, refrigerant mixture was compressed.Between compression period, floss hole 63 not in compression chamber 60, thereby guaranteed to make the overhead clearance volumes of compressor 59 efficient runnings.
Although combine the heat pump type refrigerating device of realizing cooling and heat supply operating mode above the present invention is made an explanation, the present invention also is applicable to all kinds of refrigeration machines and freezing equipment.
In a word, refrigerating plant of the present invention has enlarged scope between minimum and maximum heat supply and the cooling ability by the ratio between the cold-producing medium component of control refrigerant mixture.Scope between the scope of the efficient running of compressor of the present invention.The present invention has selected refrigerant mixture for use effectively in the scope of the efficient running of compressor, therefore can abate the noise, wear and tear and vibrate, and can increase the service life.Obviously those of ordinary skill in the art also can make the remodeling that some do not exceed the present invention's design from instruction disclosed in this invention.
Claims (9)
1. a refrigerating plant is characterized in that, comprising:
The main channel of circulating refrigerant;
Lower the pressure reducer of refrigerant pressure;
Outdoor heat converter;
Indoor heat converter links to each other with described outdoor heat converter with described pressure reducer by described main channel;
Compressor, link to each other with described indoor heat converter with described outdoor heat converter by described main channel, with from described indoor heat converter or from described outdoor heat converter compressed refrigerant, described cold-producing medium is made up of the mixture of higher boiling cold-producing medium and low boiling point refrigerant;
The container that links to each other with described main channel stores the cold-producing medium that mixes and is fed to higher boiling cold-producing medium and low boiling point refrigerant in the cold-producing medium circulation of flow through described compressor, described outdoor heat converter and described indoor heat converter by described main channel thus; With
Heat-transfer pipe, be connected on the described compressor and be wrapped in described container on heat described container to use from the compression of compressor and the cold-producing medium that mixes, wherein said heat-transfer pipe has control valve, controls the flowing of cold-producing medium of compression by described heat-transfer pipe and mixing according to the load that uses;
Described heat-transfer pipe separates with described main channel and the described main channel of bypass, is used to heat the amount of the cold-producing medium of the compression of described container and mixing with adjustment.
2. refrigerating plant as claimed in claim 1 is characterized in that, also comprises the controller of the heating of controlling described container.
3. refrigerating plant as claimed in claim 2 is characterized in that, described compressor comprises multi-cylinder compressor, has: the pipeline that connects the cylinder chamber of cylinder adjacent one another are; When reducing, opens the capacity of compressor the open/close mechanism of described pipeline with closing described pipeline at normal operation period; Described controller is controlled the heating of described container according to the on/off operation of described open/close mechanism.
4. refrigerating plant as claimed in claim 2 is characterized in that, described controller adapts to the heating that air conditioner load is controlled described container.
5. refrigerating plant as claimed in claim 2 is characterized in that, controls the rotating speed of described compressor, and required refrigerating capacity is provided, and when the rotating speed of compressor was lower than the lower limit of setting or is higher than the higher limit of setting, controller was controlled the heating of described container.
6. refrigerating plant as claimed in claim 1 is characterized in that, described cold-producing medium is the zeotrope of high and low boiling point refrigerant.
7. refrigerating plant as claimed in claim 1 is characterized in that, described compressor comprises the mechanism of the compression volume that is used to change compressor.
8. refrigerating plant as claimed in claim 1, it is characterized in that, described compressor comprises at least one cylinder, has the pipeline that is connected to described open/close mechanism, closes described pipeline and open described pipeline when the capacity of compressor reduces at described compressor normal operation period.
9. refrigerating plant as claimed in claim 1 is characterized in that described heat-transfer pipe has the end that ends at described container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94117332 CN1088180C (en) | 1994-08-30 | 1994-08-30 | Refrigerating apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94117332 CN1088180C (en) | 1994-08-30 | 1994-08-30 | Refrigerating apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1118058A CN1118058A (en) | 1996-03-06 |
| CN1088180C true CN1088180C (en) | 2002-07-24 |
Family
ID=5038285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94117332 Expired - Fee Related CN1088180C (en) | 1994-08-30 | 1994-08-30 | Refrigerating apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1088180C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2587195B1 (en) | 2011-08-30 | 2019-10-02 | LG Electronics Inc. | Refrigerator |
| CN105276864B (en) * | 2014-07-10 | 2018-01-05 | 南京理工大学 | One kind becomes component refrigerants heat-pump hot-water unit |
| CN105066273A (en) * | 2015-08-21 | 2015-11-18 | 国网上海市电力公司 | Heat exchanger suitable for capacitor and reactor chamber |
| CN106642416B (en) * | 2015-11-02 | 2020-09-29 | 维谛技术有限公司 | Air conditioning system, composite condenser and operation control method and device of air conditioning system |
-
1994
- 1994-08-30 CN CN 94117332 patent/CN1088180C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1118058A (en) | 1996-03-06 |
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