CN103727704A - Multi-temperature-zone constant temperature device - Google Patents
Multi-temperature-zone constant temperature device Download PDFInfo
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- CN103727704A CN103727704A CN201410002639.3A CN201410002639A CN103727704A CN 103727704 A CN103727704 A CN 103727704A CN 201410002639 A CN201410002639 A CN 201410002639A CN 103727704 A CN103727704 A CN 103727704A
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Abstract
A multi-temperature-zone constant temperature device is characterized in that the multi-temperature-zone constant temperature device comprises a liquid-gas separator, a compressor, a condenser, a drying filter, a plurality of constant temperature cavities, a set displayer, a memorizer, a controller and a power supply, each constant temperature cavity comprises evaporating and refrigerating branch circuits, a heating branch circuit, a temperature sensor, an air stirrer and a cold storage plate, each evaporating and refrigerating branch circuit comprises a flow regulating valve, a throttling part, an evaporator and a pressure regulating valve, the flow regulating valve, the throttling part, the evaporator and the pressure regulating valve are sequentially connected, the heating branch circuit comprises an electric control valve and a heater, the electric control valve and the heater are connected in series, the liquid-gas separator, the compressor, the condenser and the drying filter are sequentially connected, the drying filter is connected with the flow regulating valves of all the evaporating and refrigerating branch circuits, the gas-liquid separator is connected with the pressure regulating valves of all the evaporating and refrigerating branch circuits, and the power supply is connected with the two ends of the heating branch circuit in each constant temperature cavity to form a heating circuit. By means of the multi-temperature-zone constant temperature device, the constant-temperature environments where the temperatures are evenly distributed at different temperatures can be simultaneously provided, the problem that the constant temperature device is frequently started can be solved, and energy can be saved.
Description
Technical field
The present invention relates to a kind of thermostat, be specifically related to a kind of many warm areas thermostat.
Background technology
For the storage of food, experimental study of the experimental study of biomaterial, various pharmaceutical article etc. all needs different separately isoperibols, prior being often needs to carry out the performance test under different temperatures to experiment material of the same race simultaneously, thereby can provide the isoperibol of a plurality of different temperatures to seem particularly important simultaneously.
Thermostat is in the market single casing, and any moment all can only provide the isoperibol of corresponding certain specified temp, and this can only carry out again and again while testing for the experiment material of a large amount of different temperatures demands with regard to having caused, and takes time and effort.If will carry out simultaneously, can only buy many thermostats, not only cost increases greatly, and space hold also can greatly increase just caused actual use cost greatly increase and the utilization rate in space not high.
In addition, in the use procedure of thermostat, the temperature accuracy of thermostat requires higher, it starts just more frequent, just more serious to the wearing and tearing of compression member and each electric element, will certainly greatly shorten service life of thermostat, also can cause the increase of power consumption simultaneously.Thereby the frequent starting problem of thermostat is also urgently to be resolved hurrily.
Summary of the invention
The present invention carries out in order to address the above problem, and object is to propose a kind of isoperibol of the uniformity of temperature profile that different temperatures not only can be provided simultaneously but also can also solves energy-saving many warm areas thermostat of thermostat frequent starting problem.
The present invention to achieve these goals, has adopted following structure.
The invention provides many warm areas thermostat that a kind of temperature that makes each different warm areas maintains any one temperature value in the temperature range corresponding with this warm area, it is characterized in that, comprise: gas-liquid separator, compressor, condenser, device for drying and filtering, a plurality of and each warm area one to one constant temperature chamber, for setting the set and display device of any one temperature value, for storing memory, controller and the power supply of the setting value of set and display device
Wherein, each constant temperature chamber comprises respectively: comprise the flow control valve for adjusting refrigerant flow rate connecting in turn, throttle part, evaporimeter and the sweat cooling branch road that regulates the pressure-regulating valve of refrigerant pressure, the heating branch road of the electrically-controlled valve that comprises series connection and heater, for gathering the temperature sensor of the temperature information in constant temperature chamber, for making the uniform air agitator of internal temperature and at least one hold-over plate that is covered in constant temperature chamber inner surface of constant temperature chamber, gas-liquid separator, compressor, condensate component and device for drying and filtering connect in turn, the flow control valve of device for drying and filtering and each evaporation branch road is connected to sweat cooling branch road provides high-pressure refrigerant, high-pressure refrigerant becomes low pressure refrigerant through the evaporation of each evaporation branch road, gas-liquid separator is connected the low pressure refrigerant from each sweat cooling branch road is carried out to gas-liquid separation with the pressure-regulating valve of each evaporation branch road, power supply respectively with each constant temperature chamber in the two ends of heating branch road connect to form heating circuit, controller is controlled electrically-controlled valve according to the temperature information of the setting value of set and display device and temperature sensor collection, flow control valve, air agitator and compressor.
In many warm areas thermostat provided by the present invention, can also there is such feature: wherein, compressor is frequency-changeable compressor, and frequency-changeable compressor changes its rotating speed according to the control signal of controller.
In many warm areas thermostat provided by the present invention, can also there is such feature: wherein, the Phase-Change Cool-Storage Slab that hold-over plate is comprised of the thin polyurethane foam board of one deck and composite phase-change material microcapsules.
In many warm areas thermostat provided by the present invention, can also there is such feature: wherein, air agitator, evaporimeter and heater make the temperature in constant temperature chamber within the shorter time, be tending towards even near arranging.
Effect and the effect of invention
According to many warm areas thermostat of the present invention, because adopted a plurality of constant temperature chambers corresponding with each warm area, by after the evaporation branch circuit parallel connection of a plurality of constant temperature chambers with gas-liquid separator, it is constant temperature chamber refrigeration that compressor and condenser series connection form refrigerating circuit, by accessing power supply formation heating circuit after the heating branch circuit parallel connection of a plurality of constant temperature chambers, it is the heating of constant temperature chamber, controller is controlled electrically-controlled valve according to the temperature information of the setting value of set and display device and temperature sensor collection, flow control valve, air agitator and compressor, make the present invention there are a plurality of constant temperature chambers that can simultaneously work, so the present invention can provide the isoperibol of required different temperatures simultaneously, and, because adopted the hold-over plate that can change the frequency-changeable compressor of its rotating speed and be covered in constant temperature chamber inner surface according to the control signal of controller to make in the situation that each chamber of thermostat reaches in the certain hour after set temperature value not running refrigerating system, the temperature that maintains each constant temperature chamber in thermostat the temperature value of setting ± scope of 0.2 ℃ in, so the present invention not only can solve the frequent starting problem of thermostat but also can play energy-conservation effect, and, because adopted air agitator, heater and evaporimeter are near arranging, make the whole space heat transfer boundary condition of constant temperature chamber interior better, thereby can make the Temperature Distribution in constant temperature chamber more even, therefore, the present invention can provide a kind of isoperibol of the uniformity of temperature profile that different temperatures not only can be provided simultaneously but also can also solve energy-saving many warm areas thermostat of thermostat frequent starting problem.
Accompanying drawing explanation
Fig. 1 is the structure chart of many warm areas thermostat in the embodiment of the present invention; With
Fig. 2 is the schematic diagram of constant temperature chamber in thermostat in the embodiment of the present invention.
The specific embodiment
Below in conjunction with drawings and Examples, the many warm areas thermostat the present invention relates to is described in detail.
< embodiment >
Fig. 1 is the structure chart of many warm areas thermostat in the embodiment of the present invention.
As shown in Figure 1, the many warm areas thermostat 10 in the present embodiment comprises: compressor 11, for compression refrigerant gas, obtain high-pressure refrigerant, and this compressor 11 adopts converter technique, and rotating speed is adjustable; Condenser 12, import is connected with the outlet of compressor 11, the high-pressure refrigerant for condensation from compressor 11; Device for drying and filtering 13, import is connected with the outlet of condenser 12, for removing moisture and other impurity of cold-producing medium; The first constant temperature chamber 14, for required isoperibol is provided, the undulating value that its chamber indoor temperature can maintain any one temperature value in-10 ℃～0 ℃ this warm area and temperature value maintains ± 0.2 ℃ in; The second constant temperature chamber 15, also for required isoperibol is provided, the fluctuation that its chamber indoor temperature can maintain any one temperature value in-15 ℃～-10 ℃ these warm areas and temperature value maintains ± 0.2 ℃ in; The 3rd constant temperature chamber 16, same for required isoperibol is provided, the fluctuation that its chamber indoor temperature can maintain any one temperature value in-15 ℃～-23 ℃ these warm areas and temperature value maintains ± 0.2 ℃ in; Power supply 17, for providing electric energy to the first constant temperature chamber 14, the second constant temperature chamber 15 and the 3rd constant temperature chamber 16; Gas-liquid separator 18, for separating the gas of cold-producing medium and liquid; Controller 19, for controlling many warm areas thermostat 10; Set and display device 20, for setting the temperature value in the first constant temperature chamber 14, the second constant temperature chamber 15 and the 3rd constant temperature chamber 16; Holder 21, the temperature value setting for storing and setting display 20.
The first constant temperature chamber 14 comprises: the first magnetic valve 1421, and import is connected with the outlet of device for drying and filtering 13, for the cold-producing medium to from above-mentioned device for drying and filtering 13, carries out Flow-rate adjustment; The first capillary 1422, import is connected with the outlet of the first magnetic valve 1421, carries out throttling cooling obtain low-temperature refrigerant for the cold-producing medium to from the first magnetic valve 1421; The first evaporimeter 1423, import is connected with the outlet of the first capillary 1422, for the cold-producing medium to after being lowered the temperature by throttling, carries out sweat cooling; The import of the first capacity adjusting valve 1424 is connected with the outlet of the first evaporimeter 1423, and for regulating by the pressure of the refrigerant gas after the first evaporimeter 1423 evaporations, the outlet of the first capacity adjusting valve 1424 is connected with the import of gas-liquid separator 18; The first fan 141, makes indoor temperature more even for the air stirring in the first constant temperature chamber 14; Primary heater 1431, the first electrically-controlled valve 1432 and power supply 17 series connection form the first heating circuit, and electrically-controlled valve 1432 is for controlling the connecting and disconnecting of the first heating circuit, and primary heater 1431 is for heating the first constant temperature chamber 14; The first temperature sensor 144, for gathering the temperature information of the first constant temperature chamber 14.At this, the branch road that the first magnetic valve 1421, the first capillary 1422, the first evaporimeter 1423 and the first capacity adjusting valve 1424 connect to form is in turn called the first evaporation branch road 142, the first electrically-controlled valve 1432 is called the first heating branch road 143 with the branch road that primary heater 1431 is composed in series, on constant temperature chamber 14 internal faces, there is hold-over plate, the Phase-Change Cool-Storage Slab that hold-over plate is comprised of the thin polyurethane foam board of one deck and composite phase-change material microcapsules.
The second constant temperature chamber 15 comprises: the second magnetic valve 1521, and import is connected with the outlet of device for drying and filtering 13, for the cold-producing medium to from above-mentioned device for drying and filtering 13, carries out Flow-rate adjustment; The second capillary 1522, import is connected with the outlet of the second magnetic valve 1521, carries out throttling cooling obtain low-temperature refrigerant for the cold-producing medium to from the second magnetic valve 1521; The second evaporimeter 1523, import is connected with the outlet of the second capillary 1522, for the cold-producing medium to after being lowered the temperature by throttling, carries out sweat cooling; The import of the second capacity adjusting valve 1524 is connected with the outlet of the second evaporimeter 1523, and for regulating by the pressure of the refrigerant gas after the second evaporimeter 1523 evaporations, the outlet of the second capacity adjusting valve 1524 is connected with the import of gas-liquid separator 18; The second fan 151, makes indoor temperature more even for the air stirring in the second constant temperature chamber 15; Secondary heater 1531, the second electrically-controlled valve 1532 and power supply 17 series connection form the second heating circuit, and electrically-controlled valve 1532 is for controlling the connecting and disconnecting of the second heating circuit, and secondary heater 1531 is for heating the second constant temperature chamber 15; The second temperature sensor 154, for gathering the temperature information of the second constant temperature chamber 15.At this, the branch road that the second magnetic valve 1521, the second capillary 1522, the second evaporimeter 1523 and the second capacity adjusting valve 1524 connect to form is in turn called the second evaporation branch road 152, the second electrically-controlled valve 1532 is called the second heating branch road 153 with the branch road that secondary heater 1531 is composed in series, on constant temperature chamber 15 internal faces, have hold-over plate, this hold-over plate is also by the thin polyurethane foam board of one deck be different from the Phase-Change Cool-Storage Slab that the microcapsules of the composite phase-change material in chamber 14 form.
The 3rd constant temperature chamber 16 comprises: the 3rd magnetic valve 1621, and import is connected with the outlet of device for drying and filtering 13, for the cold-producing medium to from above-mentioned device for drying and filtering 13, carries out Flow-rate adjustment; Three capillary 1622, import is connected with the outlet of the 3rd magnetic valve 1621, carries out throttling cooling obtain low-temperature refrigerant for the cold-producing medium to from the 3rd magnetic valve 1621; The 3rd evaporimeter 1623, import is connected with the outlet of three capillary 1622, for the cold-producing medium to after being lowered the temperature by throttling, carries out sweat cooling; The import of the 3rd capacity adjusting valve 1624 is connected with the outlet of the 3rd evaporimeter 1623, and for regulating by the pressure of the refrigerant gas after the 3rd evaporimeter 1623 evaporations, the outlet of the 3rd capacity adjusting valve 1624 is connected with the import of gas-liquid separator 18; Three fan 161, makes indoor temperature more even for the air stirring in the 3rd constant temperature chamber 16; The 3rd heater 1631, the 3rd electrically-controlled valve 1632 and power supply 17 series connection form the 3rd heating circuit, and the 3rd electrically-controlled valve 1632 is for controlling the connecting and disconnecting of the 3rd heating circuit, and the 3rd heater 1631 is for heating the 3rd constant temperature chamber 16; Three-temperature sensor 164, for gathering the temperature information of the 3rd constant temperature chamber 16.The branch road that the 3rd magnetic valve 1621, three capillary 1622, the 3rd evaporimeter 1623 and the 3rd capacity adjusting valve 1624 connect to form is in turn referred to herein as the 3rd evaporation branch road 162, the branch road that the 3rd electrically-controlled valve 1632 and the 3rd heater 1631 are composed in series is called the 3rd heating branch road 163, and constant temperature chamber 16 inner surfaces are without hold-over plate.
In the present embodiment, many warm areas thermostat can have multiple-working mode: the first constant temperature chamber 14, the second constant temperature chamber 15 and the 3rd constant temperature chamber 16 be mode of operation simultaneously; Any two constant temperature chamber mode of operations in the first constant temperature chamber 14, the second constant temperature chamber 15 and the 3rd constant temperature chamber 16; Any one constant temperature chamber mode of operation in the first constant temperature chamber 14, the second constant temperature chamber 15 and the 3rd constant temperature chamber 16.
Take below the first constant temperature chamber 14, the second constant temperature chamber 15 and the 3rd constant temperature chamber 16 simultaneously mode of operation the present embodiment is further described as example.
Control procedure: set and display device 20 is by selected the first constant temperature chamber 14 of operating personnel, the second constant temperature chamber 15 and the 3rd 16 while of constant temperature chamber mode of operation, then according to user demand to the first constant temperature chamber 14 set temperature value-6 ℃, to the second constant temperature chamber 15 set temperature value-12 ℃, to the 3rd constant temperature chamber 16 set temperature value-20 ℃, holder stores temperature value-6 ℃, temperature value-12 ℃ and temperature value-20 ℃.
Because constant temperature chamber stops, after refrigeration, still having remaining cold-producing medium in evaporimeter at shut electromagnetic valve, these cold-producing mediums can continue sweat cooling, until cold-producing medium has all been evaporated simultaneously; In heating process, after the control valve of constant temperature chamber is closed, because heter temperature is higher than the temperature in constant temperature chamber, heater can continue heated constant temperature chamber, until its temperature is consistent with the temperature of constant temperature chamber.In order to realize the accurate control to temperature, eliminate above-mentioned factor to temperature controlled impact, by set and display device 20, set irrelevance, when also not reaching the temperature value of setting, temperature just stops heating or refrigeration.
The temperature information of 144 pairs of the first constant temperature chambers 14 of the first constant temperature chamber 14: the first temperature sensor gathers, then the temperature value collecting is fed back to controller 19, temperature value in the first constant temperature chamber 14 is during higher than temperature value-6 of setting ℃, controller 19 is controlled the first constant temperature chamber 14 and is carried out process of refrigerastion, control fan 141 runnings simultaneously, make the abundant heat exchange of air in the first constant temperature chamber 14, temperature value in the first constant temperature chamber 14 is lower than temperature value-6 ℃ of setting, and controller 19 is controlled the first constant temperature chamber 14 and carried out heating process, controls fan 141 runnings simultaneously, makes the abundant heat exchange of air in the first constant temperature chamber 14, when the temperature value in the first constant temperature chamber equals temperature value-6 set ℃, hold-over plate in the first constant temperature chamber 14 also reaches temperature value-6 ℃ of setting, after this rely on heat conduction and the phase-change heat transfer mode of phase-change material in hold-over plate, in the situation that not carrying out process of refrigerastion, maintain within a certain period of time the interior temperature of the first constant temperature chamber 14 in the scope of-5.8 ℃～-6.2 ℃, along with the interior experiment material heat radiation of constant temperature chamber 14, casing leaks the thermic load inputs such as heat, when its temperature recovery is during to the setting value upper limit-5.8 ℃, controller 19 starts refrigeration system, enter next circulation, guarantee that the temperature of constant temperature chamber 14 is in the scope of-5.8 ℃～-6.2 ℃.
The temperature information of 154 pairs of the second constant temperature chambers 15 of the second constant temperature chamber 15: the second temperature sensor gathers, then the temperature value collecting is fed back to controller 19, temperature value in the second constant temperature chamber 15 is during higher than temperature value-12 of setting ℃, controller 19 is controlled the second constant temperature chamber 15 and is carried out process of refrigerastion, control fan 151 runnings simultaneously, make the abundant heat exchange of air in the second constant temperature chamber 15, temperature value in the second constant temperature chamber 15 is lower than temperature value-12 ℃ of setting, and controller 19 is controlled the second constant temperature chamber 15 and carried out heating process, controls fan 151 runnings simultaneously, makes the abundant heat exchange of air in the second constant temperature chamber 15, when the temperature value in the second constant temperature chamber equals temperature value-12 set ℃, hold-over plate in the second constant temperature chamber 15 also reaches temperature value-12 ℃ of setting, after this rely on heat conduction and the phase-change heat transfer mode of phase-change material in hold-over plate, in the situation that not carrying out process of refrigerastion, maintain within a certain period of time the interior temperature of the second constant temperature chamber 15 in the scope of-11.8～-12.2 ℃, along with the interior experiment material heat radiation of constant temperature chamber 15, casing leaks the thermic load inputs such as heat, when its temperature recovery is during to the setting value upper limit-11.8 ℃, controller 19 starts refrigeration system, enter next circulation, guarantee that the temperature of constant temperature chamber 15 is in the scope of-11.8～-12.2 ℃.
The temperature information of 164 pairs of the 3rd constant temperature chambers 16 of the 3rd constant temperature chamber 16: the three-temperature sensor gathers, then the temperature value collecting is fed back to controller 19, temperature value in the 3rd constant temperature chamber 16 is during higher than temperature value-20 of setting ℃, controller 19 is controlled the 3rd constant temperature chamber 16 and is carried out process of refrigerastion, control fan 161 runnings simultaneously, make the abundant heat exchange of air in the 3rd constant temperature chamber 16; Temperature value in the 3rd constant temperature chamber 16 is lower than temperature value-20 ℃ of setting, and controller 19 is controlled the 3rd constant temperature chamber 16 and carried out heating process, controls fan 161 runnings simultaneously, makes the abundant heat exchange of air in the 3rd constant temperature chamber 16; When the temperature value in the 3rd constant temperature chamber equals temperature value-20 set ℃, stop process of refrigerastion or heating process, along with the interior experiment material heat radiation of constant temperature chamber 16, casing leak the thermic load inputs such as heat, when its temperature recovery is during to the setting value upper limit-19.8 ℃, controller 19 starts refrigeration system, enter next circulation, guarantee that the temperature of constant temperature chamber 16 is in the scope of-19.8 ℃～-20.2 ℃.
Process of refrigerastion: compressor 11 compresses the refrigerant gas from gas-liquid separator 18 to obtain high-temperature high-pressure refrigerant gas, 12 pairs of high-temperature high-pressure refrigerants of condenser carry out condensation cooling, in condensation process, moisture in cold-producing medium is separated out, device for drying and filtering 13 is removed the moisture in cold-producing medium and impurity to obtain dry cold-producing medium, the cold-producing medium Fen San road that this is dry, the first via enters into the first constant temperature chamber 14, the second road enters into the second constant temperature chamber 15, and Third Road enters into the 3rd constant temperature chamber 16.
1421 pairs of cold-producing mediums from device for drying and filtering 13 of the first magnetic valve in the first constant temperature chamber 14: the first constant temperature chamber 14 carry out Flow-rate adjustment, the cold-producing medium of the first 1422 pairs, capillary from the first magnetic valve 1421 carries out throttling cooling and becomes refrigerant liquid, this refrigerant liquid enters the first evaporimeter 1423 sweat coolings becomes refrigerant gas, and first this refrigerant gas of 1424 pairs of capacity adjusting valves carries out pressure adjusting.
1521 pairs of cold-producing mediums from device for drying and filtering 13 of the second magnetic valve in the second constant temperature chamber 15: the second constant temperature chamber 15 carry out Flow-rate adjustment, the cold-producing medium of the second 1522 pairs, capillary from the second magnetic valve 1521 carries out throttling cooling and becomes refrigerant liquid, this refrigerant liquid enters the second evaporimeter 1523 sweat coolings becomes refrigerant gas, and second this refrigerant gas of 1524 pairs of capacity adjusting valves carries out pressure adjusting.
1621 pairs of cold-producing mediums from device for drying and filtering 13 of the 3rd magnetic valve in the 3rd constant temperature chamber 16: the three constant temperature chambers 16 carry out Flow-rate adjustment, 1622 pairs of cold-producing mediums from the 3rd magnetic valve 1621 of three capillary carry out throttling cooling and become refrigerant liquid, this refrigerant liquid enters the 3rd evaporimeter 1623 sweat coolings becomes refrigerant gas, and the 3rd this refrigerant gas of 1624 pairs of capacity adjusting valves carries out pressure adjusting.
Above-mentionedly by the cold-producing medium after the first capacity adjusting valve 1424, the second capacity adjusting valve 1524 and the 3rd capacity adjusting valve 1624 pressure regulation, convergeed to and enter into afterwards together gas- liquid separator 18,18 pairs of cold-producing mediums of gas-liquid separator carry out gas-liquid separation.
Compare with the process of refrigerastion of the traditional thermostat that only has single constant temperature chamber, because many warm areas thermostat 10 has the first constant temperature chamber 14 in the present embodiment, the second constant temperature chamber 15 and 16 3 constant temperature chambers of the 3rd constant temperature chamber, and the cold-producing medium in these three constant temperature chambers all comes from same device for drying and filtering 13, in order to make to supply with the first constant temperature chamber 14, the amount of the cold-producing medium of the second constant temperature chamber 15 and the 3rd constant temperature chamber 16 can regulate according to the refrigeration situation in each chamber and can independently control the evaporation branch road 142 of the first constant temperature chamber 14, whether the work of the evaporation branch road 162 of the evaporation branch road 152 of the second constant temperature chamber 15 and the 3rd constant temperature chamber 16, so the import at the first capillary 1422 of the first constant temperature chamber 14 is provided with the first magnetic valve 1421, import at the second capillary 1522 of the second constant temperature chamber 15 is provided with the second magnetic valve 1521, import at the three capillary 1622 of the 3rd constant temperature chamber 16 is provided with the 3rd magnetic valve 1621.
In addition, because many warm areas thermostat 10 has the first constant temperature chamber 14 in the present embodiment, the second constant temperature chamber 15 and 16 3 constant temperature chambers of the 3rd constant temperature chamber, and after merging together, the cold-producing medium after being evaporated just enters gas-liquid separator 18 in each chamber, make like this first evaporimeter 1423 in the first constant temperature chamber 14, the second evaporimeter 1523 in the second constant temperature chamber 15 and the 3rd evaporimeter 1623 of the 3rd constant temperature chamber 16 be UNICOM together, again because the first constant temperature chamber 14, in the second constant temperature chamber 15 and the 3rd constant temperature chamber 16, the evaporating pressure of each evaporimeter is different, so in the present embodiment, outlet at the first evaporimeter 1423 of the first constant temperature chamber 14 is provided with the first capacity adjusting valve 1424, outlet at the second evaporimeter 1523 of the second constant temperature chamber 15 is provided with the second capacity adjusting valve 1524, outlet at the 3rd evaporimeter 1623 of the 3rd constant temperature chamber 16 is provided with the 3rd capacity adjusting valve 1624, for the pressure of the cold-producing medium of each evaporator outlet is adjusted to unanimously, prevent channelling.
Heating process: the first electrically-controlled valve 1432, the second electrically-controlled valve 1532 and the 3rd electrically-controlled valve 1632 are all closed, primary heater 1431, secondary heater 1531 and the 3rd heater 1631 are connected and are formed heating circuit with power supply 17 respectively, 1431 pairs of the first constant temperature chambers 14 of primary heater heat, 1531 pairs of the second constant temperature chambers 15 of secondary heater heat, and the 3rd 1631 pairs of heaters the 3rd constant temperature chamber 16 heats.
For other two kinds of mode of operations of the many warm areas thermostat in the present embodiment, at this, much more no longer to explain, its operation principle is consistent with above-mentioned principle.
Fig. 2 is the schematic diagram of constant temperature chamber in thermostat in the embodiment of the present invention.
As shown in Figure 2, hold-over plate 145 is respectively posted in the upper side of the first constant temperature chamber 14 and left and right side, hold-over plate 155 is respectively posted in the upper side of the second constant temperature chamber 15 and left and right side, hold-over plate in constant temperature chamber stores cold, after thermostat reaches design temperature in certain hour, do not carry out in the situation of process of refrigerastion, maintain the temperature of thermostat in the temperature range of setting, at constant temperature chamber 14 upper sides, between constant temperature chamber 14 and constant temperature chamber 15, post heat-insulation layer 146, between constant temperature chamber 15 and constant temperature chamber 16, post heat-insulation layer 156, at constant temperature chamber 16 bottom sides, post heat-insulation layer 166, above-mentioned heat-insulation layer 146, heat-insulation layer 156 and heat-insulation layer 166 interpenetrate for preventing the thermic load between each constant temperature chamber, the outside of whole many warm areas thermostat is also provided with insulation material.
The effect of embodiment and effect:
The present embodiment is the first constant temperature chamber of-10 ℃～0 ℃ because adopted temperature range, temperature range is these three constant temperature chambers of the 3rd constant temperature chamber that the second constant temperature chamber of-15 ℃～-10 ℃ and temperature range are-15 ℃～-23 ℃, by the first evaporation branch road of above-mentioned the first constant temperature chamber, after the 3rd evaporation branch circuit parallel connection in the second constant temperature chamber second evaporation branch road and the 3rd constant temperature chamber with gas-liquid separator, compressor, it is above-mentioned three constant temperature chambers refrigeration that condenser and device for drying and filtering series connection form refrigerating circuit, by the heating of first in the first constant temperature chamber branch road, after the 3rd heating branch circuit parallel connection in the second constant temperature chamber second heating branch road and the 3rd constant temperature chamber, accessing power supply formation heating circuit is above-mentioned three constant temperature chambers heating, controller is controlled each electrically-controlled valve according to the temperature information of the setting value of set and display device and each temperature sensor collection, each magnetic valve, each fan and compressor, make the present invention there are three the constant temperature chambers that can simultaneously work, so the present invention can provide the isoperibol of required different temperatures simultaneously, and, because adopted the hold-over plate that can change the frequency-changeable compressor of its rotating speed and be covered in constant temperature chamber inner surface according to the control signal of controller to make after thermostat reaches the temperature value of setting in certain hour, do not carry out in the situation of process of refrigerastion, maintain the temperature of thermostat in the temperature range of setting, so the present invention not only can solve the frequent starting problem of thermostat but also can play energy-conservation effect, and, because adopted the fan in each constant temperature chamber, heater and evaporimeter are near arranging, make the whole space heat transfer boundary condition of constant temperature chamber interior better, so the present invention can make the Temperature Distribution in constant temperature chamber more even, therefore, the present invention can provide a kind of isoperibol of the uniformity of temperature profile that different temperatures not only can be provided simultaneously but also can also solve energy-saving many warm areas thermostat of thermostat frequent starting problem.
Claims (4)
1. make the temperature of each different warm areas maintain many warm areas thermostat of any one temperature value in the temperature range corresponding with this warm area, it is characterized in that, comprising:
Gas-liquid separator, compressor, condenser, device for drying and filtering, a plurality of and described in each warm area one to one constant temperature chamber, for setting the set and display device of described any one temperature value, for storing memory, controller and the power supply of the setting value of described set and display device
Wherein, described in each, constant temperature chamber comprises respectively: comprise in turn the heating branch road of sweat cooling branch road, the electrically-controlled valve that comprises series connection and the heater of the flow control valve for adjusting refrigerant flow rate, throttle part, the evaporimeter connecting and the pressure-regulating valve that regulates refrigerant pressure, for gathering the temperature sensor of the temperature information in described constant temperature chamber, for making the uniform air agitator of internal temperature and at least one hold-over plate that is covered in described constant temperature chamber inner surface of described constant temperature chamber
Described gas-liquid separator, described compressor, described condensate component and described device for drying and filtering connect in turn,
Described device for drying and filtering and the described flow control valve that evaporates branch road described in each are connected to described sweat cooling branch road provides high-pressure refrigerant,
Described high-pressure refrigerant becomes low pressure refrigerant through evaporating the evaporation of branch road described in each,
Described gas-liquid separator is connected the low pressure refrigerant from sweat cooling branch road described in each is carried out to gas-liquid separation with the described pressure-regulating valve that evaporates branch road described in each,
Described power supply respectively with constant temperature chamber described in each in the two ends of described heating branch road connect to form heating circuit,
Described controller is controlled described electrically-controlled valve, described flow control valve, described air agitator and described compressor according to the described temperature information of the setting value of described set and display device and described temperature sensor collection.
2. many warm areas thermostat according to claim 1, is characterized in that:
Wherein, described compressor is frequency-changeable compressor, and described frequency-changeable compressor changes its rotating speed according to the control signal of described controller.
3. many warm areas thermostat according to claim 1, is characterized in that:
Wherein, the Phase-Change Cool-Storage Slab that described hold-over plate is comprised of the thin polyurethane of one deck, polystyrene or other cystosepiments and composite phase-change material microcapsules.
4. many warm areas thermostat according to claim 1, is characterized in that:
Wherein, air agitator, evaporimeter and heater make the temperature in constant temperature chamber within the shorter time, be tending towards even near arranging.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089787A (en) * | 2014-04-22 | 2014-10-08 | 合肥通用机械研究院 | Radiation tail end performance testing device based on external environment control |
| CN105708179A (en) * | 2016-04-20 | 2016-06-29 | 青岛有屋家居集成有限公司 | Temperature control type combined cabinet |
| CN105747590A (en) * | 2016-04-20 | 2016-07-13 | 青岛有屋家居集成有限公司 | Split cupboard connection system |
| CN105843308A (en) * | 2016-05-07 | 2016-08-10 | 沈阳建筑大学 | Double-side artificial thermal and humidity environment experiment platform |
| CN106997218A (en) * | 2017-05-19 | 2017-08-01 | 堀场仪器（上海）有限公司 | A kind of multi-temperature control system |
| CN107678462A (en) * | 2017-11-01 | 2018-02-09 | 泰安磐然测控科技有限公司 | Constant speed groove and constant speed groove constant speed cooling system and constant speed groove constant speed cool-down method |
| CN111023675A (en) * | 2019-12-11 | 2020-04-17 | 北京顶通物流有限公司 | Warehouse constant temperature storage system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104089787A (en) * | 2014-04-22 | 2014-10-08 | 合肥通用机械研究院 | Radiation tail end performance testing device based on external environment control |
| CN105708179A (en) * | 2016-04-20 | 2016-06-29 | 青岛有屋家居集成有限公司 | Temperature control type combined cabinet |
| CN105747590A (en) * | 2016-04-20 | 2016-07-13 | 青岛有屋家居集成有限公司 | Split cupboard connection system |
| CN105843308A (en) * | 2016-05-07 | 2016-08-10 | 沈阳建筑大学 | Double-side artificial thermal and humidity environment experiment platform |
| CN105843308B (en) * | 2016-05-07 | 2017-10-03 | 沈阳建筑大学 | A kind of bi-lateral artificial thermal and humidity environment experiment porch |
| CN106997218A (en) * | 2017-05-19 | 2017-08-01 | 堀场仪器（上海）有限公司 | A kind of multi-temperature control system |
| CN107678462A (en) * | 2017-11-01 | 2018-02-09 | 泰安磐然测控科技有限公司 | Constant speed groove and constant speed groove constant speed cooling system and constant speed groove constant speed cool-down method |
| CN107678462B (en) * | 2017-11-01 | 2022-12-20 | 泰安磐然测控科技有限公司 | Constant-speed tank, constant-speed cooling system for constant-speed tank and constant-speed cooling method for constant-speed tank |
| CN111023675A (en) * | 2019-12-11 | 2020-04-17 | 北京顶通物流有限公司 | Warehouse constant temperature storage system |
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