CN206890899U - The frostless refrigeration system in three sources of intelligence - Google Patents
The frostless refrigeration system in three sources of intelligence Download PDFInfo
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- CN206890899U CN206890899U CN201720814036.2U CN201720814036U CN206890899U CN 206890899 U CN206890899 U CN 206890899U CN 201720814036 U CN201720814036 U CN 201720814036U CN 206890899 U CN206890899 U CN 206890899U
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Abstract
It the utility model is related to a kind of frostless refrigeration system in three sources of intelligence, including compressor, condenser and evaporator, compressor is connected with condenser by a blast pipe, compressor is connected with evaporator by an air intake duct, condenser is connected with evaporator by a feed pipe, feed pipe is provided with the first liquid supply electromagnetic valve, the exhaust outlet of compressor is connected by the first branch pipe with the inlet of evaporator, one first exhaust magnetic valve is installed on the first branch pipe, the leakage fluid dram of condenser is connected by the second branch pipe with the inlet of evaporator, one second liquid supply electromagnetic valve is installed on the second branch pipe, one servo valve is installed on feed pipe, each valve is connected with a controller, controller connects with least one environment temperature probe for being used to detect environment temperature.Refrigeration system of the present utility model can provide the refrigerant of three kinds of different conditions to evaporator, so as to solve the problems, such as evaporimeter frosting, improve the refrigerating efficiency under refrigeration and low temperature environment.
Description
Technical field
Refrigerating field is the utility model is related to, more particularly to a kind of frostless refrigeration system in three sources of intelligence.
Background technology
The refrigeration principle of general refrigeration machine is：Refrigerant absorption refrigeration in evaporator with liquid, cryogenic liquid absorb vapour
Change latent heat becomes refrigerant gas and is sucked and compressed by compressor, and gas compressed pressure and temperature all increases, and flows into afterwards
Condenser, condenser are condensed in the form of air-cooled water cooling etc. to refrigerant gas, and condensed high temperature high pressure liquid is stored in
In condenser bottom and reservoir, liberated heat is taken out of and is scattered in environment by equipment such as blower fan, water pumps during condensation, works as height
After the expanded valve of liquid flow of warm high pressure, the evaporator absorption latent heat of vaporization is entered back into the liquid condition of low-temp low-pressure and freezed,
So complete kind of refrigeration cycle.
For evaporator, if the refrigerant for having a variety of different conditions flows into, corresponding refrigeration system can be referred to as
Multi-source refrigeration system.Current refrigeration system, because the refrigerant being flowed into evaporator is low temperature and low pressure liquid, it is consequently belonging to
One source refrigeration system.Current refrigeration system, there are the following problems：
1st, evaporator refrigeration for a period of time afterwards can be in surface frost accumulated, and frost accumulated will be blocked up to cause heat exchange to be deteriorated, and make refrigeration
Energy is deteriorated, system operation is unstable, does not cool between severe patient's environment, triggers a series of failures to occur, can also damage equipment, so
The frost accumulated of evaporator surface is removed, and defrost terminate after be again started up refrigeration to also result in system operation unstable.System
The modes such as cool equipment typical electric heater defrost, heat fluorination frost, water defrosting are evaporated device defrost processing, water defrosting, are to use water
It is sprayed on evaporator fin and removes frost, electrical heating defrost and water defrosting, heat fluorination frost, is required for a defrost process, defrost
During stop refrigeration, so as to influence refrigerating speed and effect, serious extends run time, increases electric quantity consumption, drops
Low service life of equipment.Defrost process is exited after evaporator frost accumulatedization is complete, second is carried out and starts refrigeration.
2nd, the expansion valve used in current refrigeration system is heating power expansion valve, heating power expansion valve exist control range it is small,
Low-response, lag time are long and the shortcomings of error is big, so as to cause poor refrigerating efficiency.Such as worker takes the article in freezer
After going out, the high article to be frozen of temperature is put into, produces amount of heat in freezer in this case, when expansion valve is sensed in freezer
Temperature change and when increasing cold medium flux, freezer has been put into article to be frozen and has been separated by a period of time, so as to which expansion valve can not be
The very first time of temperature of ice house change responds, therefore refrigeration is poor.
3rd, when the temperature of the surroundings is low, the heat that evaporator is can absorb is reduced, and the heat exchange between evaporator and environment subtracts
It is few, so as to which the efficiency for causing refrigeration system further to freeze environment reduces.
Utility model content
In view of this, the utility model purpose is to provide a kind of frostless refrigeration system in three sources of intelligence, by being carried to evaporator
For the different refrigerant of three kinds of states, intelligently to solve evaporimeter frosting present in current refrigeration system, refrigeration effect
The problem of refrigerating efficiency under fruit difference and low temperature environment is low.
To achieve these goals, the utility model is realized by the following technical solutions：A kind of three sources of intelligence are frostless
Refrigeration system, including compressor, condenser and evaporator, the compressor are connected with condenser by a blast pipe, the pressure
Contracting machine is connected with evaporator by an air intake duct, and the condenser is connected with evaporator by a feed pipe, on the feed pipe
Provided with the first liquid supply electromagnetic valve, the exhaust outlet of the compressor is connected by the first branch pipe with the inlet of evaporator, and described
One first exhaust magnetic valve is installed, the leakage fluid dram of the condenser passes through the second branch pipe and the inlet of evaporator on one branch pipe
Connection, one second liquid supply electromagnetic valve is installed on second branch pipe, a servo valve is installed on the feed pipe, described first
Liquid supply electromagnetic valve, first exhaust magnetic valve, the second liquid supply electromagnetic valve and servo valve are connected with a controller, the controller with extremely
The few one environment temperature probe connection for being used to detect environment temperature.Preferably, the first exhaust magnetic valve and the second feed flow
Magnetic valve is the magnetic valve with flow regulating function.
Further, the air inlet of the evaporator is provided with a primary heater, the primary heater with it is described
Controller is connected, and the suction temperature probe and pressure of inspiration(Pi) transmitter are connected with the controller.
Further, suction temperature probe and pressure of inspiration(Pi) transmitter are installed on the air intake duct.
Further, the air intake duct is connected with blast pipe by one the 3rd branch pipe, and one is provided with the 3rd branch pipe
Second exhaust magnetic valve, the second exhaust magnetic valve are connected with the controller.Preferably, the second exhaust magnetic valve is
Magnetic valve with flow regulating function.
Further, a suction solenoid valve being connected with the controller, the air-breathing electricity are installed on the air intake duct
Magnet valve is installed on the upstream on the air intake duct with the junction of the 3rd branch pipe by the flow direction of refrigerant.Preferably, it is described
Suction solenoid valve is the magnetic valve with flow regulating function.
Further, it is also equipped with a secondary heater being connected with the controller on the air intake duct, described second
Heater is installed on the upstream on the air intake duct with the junction of the 3rd branch pipe by the flow direction of refrigerant.
Further, the exhaust ports of the evaporator are popped one's head in provided with an evaporating temperature, and the leakage fluid dram of the condenser is set
There is condensation temperature probe, the blast pipe is provided with delivery temperature probe and pressure at expulsion transmitter, and the evaporating temperature is visited
Head, condensation temperature probe, delivery temperature probe and the pressure at expulsion transmitter are connected with the controller.
The beneficial effects of the utility model：
1st, the frostless refrigeration system in the source of intelligence three of the present utility model, can be provided to evaporator in low temperature low pressure gas state
Refrigerant, the refrigerant in high temperature and high pressure gas state and the refrigerant in high temperature high pressure liquid state, by controller by three
Source mixes supply evaporator in proportion, energy needed for accurate control supply evaporator, evaporator frost-free is effectively ensured, improves
Refrigerating efficiency under refrigeration and low temperature environment.
2nd, the frostless refrigeration system in the source of intelligence three of the present utility model, the heating of inlet installation first in evaporator is passed through
Device, it can further improve the refrigerating efficiency under low temperature environment.
3rd, the frostless refrigeration system in the source of intelligence three of the present utility model, by installing second exhaust electromagnetism on the 3rd branch pipe
Valve, compressor imbibition is excessive and pressure of inspiration(Pi) is too high so as to improving, and prevents that pressure at expulsion is too high, ensures the normal of compressor
Working life.
4th, the frostless refrigeration system in the source of intelligence three of the present utility model, by setting suction solenoid valve, so as to further
Improve compressor imbibition excessively and pressure of inspiration(Pi) is too high.
5th, the frostless refrigeration system in the source of intelligence three of the present utility model, can be further by setting secondary heater
Improve compressor imbibition excessively and pressure of inspiration(Pi) is too high.
6th, the frostless refrigeration system in the source of intelligence three of the present utility model, by setting evaporating temperature probe and condensation temperature to visit
Head so that controller can control evaporation fan and condensation fan rotating speed, efficiently controlled evaporation and heat-exchange effect and condensation is changed
Thermal effect, system is set to keep stable operation.
Brief description of the drawings
Fig. 1 is workflow diagram of the present utility model.
Embodiment
Technological means, creation characteristic, reached purpose and effect to realize the utility model are easy to understand, below
With reference to embodiment, the utility model is expanded on further.
As shown in figure 1, a kind of frostless refrigeration system in three sources of intelligence includes compressor 1, condenser 5 and evaporator 15, it is described
Compressor 1 is connected with condenser 5 by a blast pipe 2, and the compressor 1 is connected with evaporator 15 by an air intake duct 20, institute
State condenser 5 to connect by a feed pipe 7 with evaporator 15, the feed pipe 7 is provided with the first liquid supply electromagnetic valve 8, the pressure
The exhaust outlet of contracting machine 1 is connected by the first branch pipe 10 with the inlet of evaporator 15, and one is provided with first branch pipe 10
One exhaust solenoid valve 11, the leakage fluid dram of the condenser 5 are connected by the second branch pipe 12 with the inlet of evaporator 15, and described
One second liquid supply electromagnetic valve 13 is installed on two branch pipes 12, a servo valve 9 is installed on the feed pipe 7, servo valve 9 has essence
The function of quasi- regulation flow and pressure, can replace the expansion valve in conventional refrigeration, and than expansion valve reaction speed more
It hurry up.First liquid supply electromagnetic valve 8, first exhaust magnetic valve 11, the second liquid supply electromagnetic valve 13 and the controller 25 of servo valve 9 and one
Connection, the controller 25 are connected with compressor 1, condensation fan and evaporation fan, and the controller 25 is used for at least one
The connection of environment temperature probe 14 of environment temperature is detected, preferably described controller 25 is PLC.The quantity of the temp probe is usual
To be multiple, the shapes and sizes in the space that temp probe freezes according to needed for refrigeration system and reasonably arranged.
Under normal circumstances, the cold-producing medium stream in high temperature high pressure liquid state flowed out from the leakage fluid dram of condenser 5 is through servo
Evaporator 15 is flowed to after valve 9, is then vaporized in evaporator 15, so as to produce heat exchange with external environment.Pass through PLC controls the
One exhaust solenoid valve 11 is intermittently opened and closed, and the high temperature and high pressure gas so as to be discharged from the exhaust outlet of compressor 1 import one
Part is arrived in evaporator 15, and high temperature and high pressure gas can will be formed in the frost thawing on the surface of evaporator 15, and then ensure that cold wind
Passage is unimpeded, and cooling system effect is fast, and energy consumption reduces, and the run time of compressor 1 is short.The second confession is controlled further through controller 25
The opening and closing of liquid electromagnetic valve 13, so as to increase the amount for the refrigerant being in a liquid state being flowed into evaporator 15（Including by servo
Valve be flowed into evaporator 15 in low-temp low-pressure liquid refrigerant and to be flowed into by condenser 5 in evaporator 15 be in high temperature
The refrigerant of high-pressure liquid）, first exhaust magnetic valve 11 can now be opened simultaneously, part high temperature and high pressure gas is flowed into steaming
Send out in device 15, high temperature and high pressure gas promote the refrigerant vaporization being in a liquid state, so as to improve the system of system at low ambient temperatures
Cold efficiency.By the change of the detection environment temperature of environment temperature probe 14, controller 25 is set to control the second liquid supply electromagnetic valve 13 to beat
Open, so as to the exchange capability of heat between strengthening system and environment, and then improve response speed of the system for variation of ambient temperature, finally
The refrigeration of raising system.
The utility model is by the way that the refrigerant of three kinds of different conditions to be mixed to supply evaporator 15 in proportion, in controller 25
Control under realize accurately supply evaporator 15 needed for energy, the frost-free of evaporator 15 is effectively ensured.
As the further improvement of such scheme, the air inlet of the evaporator 15 is provided with a primary heater 16,
The primary heater 16 is preferably electric heater, and the primary heater 16 is connected with the controller 25.In low temperature environment
Under when being freezed, by controller 25 primary heater 16 can be made to work so that by the wind of evaporator 15 with certain
Thermal source, so as to promote the vaporizing liquid being flowed into evaporator 15, imitated with further enhancing the refrigeration of system at low ambient temperatures
Rate.
As the further improvement of such scheme, suction temperature probe 18 and pressure of inspiration(Pi) are installed on the air intake duct 20
Transmitter 19, suction temperature probe 18 and pressure of inspiration(Pi) transmitter 19 are connected with the controller 25.Suction temperature 18 Hes of probe
Pressure of inspiration(Pi) transmitter 19 is arranged near the exhaust outlet of evaporator 15, be respectively used to measure the exhaust outlet of evaporator 15 temperature and
Pressure.Controller 25 collects the signal of environment temperature probe 14, suction temperature probe 18 and pressure of inspiration(Pi) transmitter 19, then controls
The supply ratio in three sources is made, the accuracy of three source quantity delivereds of control is improved, system run all right is effectively ensured.
As the further improvement of such scheme, the air intake duct 20 is connected with blast pipe 2 by one the 3rd branch pipe 23, institute
State and a second exhaust magnetic valve 24 is installed on the 3rd branch pipe 23, the second exhaust magnetic valve 24 connects with the controller 25
Connect.When the liquid in air intake duct 20 is more, controller 25 controls second exhaust magnetic valve 24 to open, the part in blast pipe 2
High temperature and high pressure gas are entered in air intake duct 20, to promote the vaporizing liquid in air intake duct 20.Avoid because of liquid in air intake duct 20
Body is excessive and causes the excessive and pressure at expulsion of doing work of compressor 1 too high and shorten the service life of compressor 1.
As the further improvement of such scheme, a suction being connected with the controller 25 is installed on the air intake duct 20
Pneumoelectric magnet valve 21, the suction solenoid valve 21 are installed on the air intake duct 20 and the 3rd branch pipe 23 by the flow direction of refrigerant
Junction upstream.Suction solenoid valve 21 can interrupt circulation of the refrigerant in air intake duct 20 so that positioned at air-breathing electromagnetism
Unnecessary liquid is vaporized by compressor 1 in the air intake duct 20 in the downstream of valve 21, further avoid excessive liquid and is flowed into pressure
Cause the excessive and pressure at expulsion of doing work of compressor 1 too high and shorten the service life of compressor 1 in contracting machine 1.
As the further improvement of such scheme, one is also equipped with the air intake duct 20 and is connected with the controller 25
Secondary heater 22, preferably described secondary heater 22 are electric heater, and the secondary heater 22 is pacified by the flow direction of refrigerant
Loaded on the upstream on the air intake duct 20 with the junction of the 3rd branch pipe 23.When pressure of inspiration(Pi) transmitter 19 detects air-breathing
When pressure is still higher in pipe 20（Illustrate in air intake duct 20 still with the presence of liquid refrigerant）, the control secondary heater of controller 25
22 work so that be vaporized during the pipeline section at the place of secondary heater 22 that liquid refrigerant passes through on air intake duct 20, and then more enter
Improve to one step the problem of imbibition of compressor 1 is excessive and pressure of inspiration(Pi) is too high.
As the further improvement of such scheme, the exhaust ports of the evaporator 15 are provided with evaporating temperature probe 17,
The leakage fluid dram of the condenser 5 is provided with condensation temperature probe 6, and the blast pipe 2 is provided with delivery temperature probe 3 and exhaust pressure
Power transmitter 4, the evaporating temperature probe 17, condensation temperature probe 6, delivery temperature probe 3 and the exhaust pressure
Power transmitter 4 is connected with the controller 25.Evaporating temperature probe 17 and condensation temperature probe 6 are respectively used to gather evaporating temperature
And condensation temperature, signal is then passed into controller 25, controller 25 controls evaporation fan and condensation fan rotating speed, so as to control
Evaporation and heat-exchange effect and condensing heat-exchange effect processed, avoid condensing heat-exchange amount it is excessive or it is too small cause system failure, and then
System is set to keep stable operation.Delivery temperature probe 3 and pressure at expulsion transmitter 4 are by the delivery temperature collected and pressure transmission
To controller 25, so as to control delivery temperature and pressure in a suitable scope, intelligent protection is carried out to compressor 1, kept away
Exempt from excessive discharge temperature and pressure is excessive and shorten the service life of compressor 1, make system operation more stable.
As the further improvement of such scheme, the first exhaust magnetic valve 11, second exhaust magnetic valve 24 and air-breathing
Magnetic valve 21 is the magnetic valve with flow regulating function, so sets the control essence that can improve controller control to three source fluxs
Degree.In the present embodiment, the concrete structure of the magnetic valve with flow regulating function may be referred to apply for the more shellfish machineries in artificial Ningbo
Industrial Co., Ltd., authorize the magnetic valve with fluid flow regulation function that publication No. is CN104154299A.
Illustrate, solid arrow represents the air intake direction of evaporator 15 in accompanying drawing 1.
The advantages of general principle and principal character of the present utility model and the utility model has been shown and described above, for
For those skilled in the art, it is clear that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and without departing substantially from this
In the case of the spirit or essential attributes of utility model, the utility model can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the utility model is by institute
Attached claim rather than described above limit, it is intended that will fall in the implication and scope of the equivalency of claim
All changes are included in the utility model.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (10)
1. a kind of frostless refrigeration system in three sources of intelligence, including compressor, condenser and evaporator, the compressor lead to condenser
Blast pipe connection is crossed, the compressor is connected with evaporator by an air intake duct, and the condenser and evaporator supply by one
Liquid pipe connects, and the feed pipe is provided with the first liquid supply electromagnetic valve, it is characterised in that：The exhaust outlet of the compressor passes through first
Branch pipe is connected with the inlet of evaporator, and a first exhaust magnetic valve, the row of the condenser are provided with first branch pipe
Liquid mouth is connected by the second branch pipe with the inlet of evaporator, and one second liquid supply electromagnetic valve, institute are provided with second branch pipe
State and a servo valve is installed on feed pipe, first liquid supply electromagnetic valve, first exhaust magnetic valve, the second liquid supply electromagnetic valve and watch
Take valve to be connected with a controller, the controller connects with least one environment temperature probe for being used to detect environment temperature.
2. the frostless refrigeration system in the source of intelligence three according to claim 1, it is characterised in that：The air inlet of the evaporator
One primary heater is installed, the primary heater is connected with the controller.
3. the frostless refrigeration system in the source of intelligence three according to claim 2, it is characterised in that：Suction is installed on the air intake duct
Gas temp probe and pressure of inspiration(Pi) transmitter, the suction temperature probe and pressure of inspiration(Pi) transmitter are connected with the controller.
4. the frostless refrigeration system in the source of intelligence three according to claim 3, it is characterised in that：The air intake duct and blast pipe lead to
The connection of one the 3rd branch pipe is crossed, a second exhaust magnetic valve, the second exhaust magnetic valve and institute are installed on the 3rd branch pipe
State controller connection.
5. the frostless refrigeration system in the source of intelligence three according to claim 4, it is characterised in that：One is provided with the air intake duct
The suction solenoid valve being connected with the controller, the suction solenoid valve by the flow direction of refrigerant be installed on the air intake duct with
The upstream of the junction of 3rd branch pipe.
6. the frostless refrigeration system in the source of intelligence three according to claim 5, it is characterised in that：It is also equipped with the air intake duct
One secondary heater being connected with the controller, the secondary heater are installed on the air intake duct by the flow direction of refrigerant
With the upstream of the junction of the 3rd branch pipe.
7. the frostless refrigeration system in the source of intelligence three according to claim 6, it is characterised in that：The exhaust ports of the evaporator
Popped one's head in provided with an evaporating temperature, the leakage fluid dram of the condenser is popped one's head in provided with a condensation temperature, and the blast pipe is provided with exhaust
Temp probe and pressure at expulsion transmitter, evaporating temperature probe, condensation temperature probe, delivery temperature probe and
The pressure at expulsion transmitter is connected with the controller.
8. the frostless refrigeration system in the source of intelligence three according to claim 1, it is characterised in that：The first exhaust magnetic valve and
Second liquid supply electromagnetic valve is the magnetic valve with flow regulating function.
9. the frostless refrigeration system in the source of intelligence three according to claim 4, it is characterised in that：The second exhaust magnetic valve is
Magnetic valve with flow regulating function.
10. the frostless refrigeration system in the source of intelligence three according to claim 5, it is characterised in that：The suction solenoid valve is tool
There is the magnetic valve of flow regulating function.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720814036.2U CN206890899U (en) | 2017-07-06 | 2017-07-06 | The frostless refrigeration system in three sources of intelligence |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720814036.2U CN206890899U (en) | 2017-07-06 | 2017-07-06 | The frostless refrigeration system in three sources of intelligence |
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| CN206890899U true CN206890899U (en) | 2018-01-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107120858A (en) * | 2017-07-06 | 2017-09-01 | 王道均 | The frostless refrigeration system in three sources of intelligence |
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2017
- 2017-07-06 CN CN201720814036.2U patent/CN206890899U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107120858A (en) * | 2017-07-06 | 2017-09-01 | 王道均 | The frostless refrigeration system in three sources of intelligence |
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