CN2124888U - Constant temp. chute with function of refrigerating and heating - Google Patents
Constant temp. chute with function of refrigerating and heating Download PDFInfo
- Publication number
- CN2124888U CN2124888U CN 90215413 CN90215413U CN2124888U CN 2124888 U CN2124888 U CN 2124888U CN 90215413 CN90215413 CN 90215413 CN 90215413 U CN90215413 U CN 90215413U CN 2124888 U CN2124888 U CN 2124888U
- Authority
- CN
- China
- Prior art keywords
- temperature
- thermostatic bath
- refrigerant
- medium
- exchanger
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Devices For Use In Laboratory Experiments (AREA)
Abstract
The utility model relates to an improved constant temperature groove, particularly a constant temperature groove with the double functions of refrigeration and heating. The utility model is composed of a heating exchanger, a refrigerating compressor group, a refrigeration exchanger, and a controller. When presetting temperature is higher than medium temperature, temperature raising and temperature control can be realized. When the presetting temperature is lower than the medium temperature, temperature raising and temperature control can be realized by the refrigeration exchanger. Consequently, the utility model can effectively extend into a low temperature area to realize temperature control and improve temperature control precision. The constant temperature groove of the utility model is provided with a plane observation window.
Description
The present invention relates to a kind of improved thermostatic bath, particularly a kind of thermostatic bath that can both reach the constant temperature purpose under the high or low situation of ambient temperature or medium temperature is applicable to the test in fields such as chemistry, physics, biology, medical science and the work that all need constant temperature.
Existing large-scale thermostatic bath, mainly form by temperature booster, controller and container, when ambient temperature is lower than design temperature, utilize heating to reach the purpose that the control that adds heat is reached constant temperature, but when ambient temperature is higher than design temperature, just can't carry out work, this work to analytical test and other required constant temperature is made troubles even can't be worked.
Task of the present invention is that a kind of improved thermostatic bath will be provided, no matter ambient temperature how, it can both fast, stably reach required temperature, and operation interval is big, also is equipped with for the experimenter and watches the window of test situation, to satisfy various needs.
For achieving the above object, contiguous at the temperature booster of thermostatic bath temperature controlled region, set up a refrigerator, during medium temperature, temperature booster work is risen and constant temperature medium temperature in design temperature is higher than window.When design temperature was lower than the container inner medium temperature, refrigerator participation work descended medium temperature and constant temperature, so no matter how just reached ambient temperature or medium temperature, can both satisfy the purpose of constant temperature.Simultaneously, the present invention also is provided with a deflecting plate between the temperature controlled region of thermostatic bath and work area, with the work area that forms a spaciousness and the medium after adjustment is refluxed with direction initialization, guarantees that the medium temperature of work area is more stable.The present invention has added observation window in the front and back of thermostatic bath container two sides, and adopts double glass, in order to experimenter's observation experiment situation, and avoids or weakened the large tracts of land condensation vapor that medium temperature forms on the observation window face when being lower than ambient temperature.
The present invention is described in further detail below with reference to accompanying drawing.
Fig. 1 is a fundamental diagram of the present invention.
Fig. 2 is an electric system schematic diagram of the present invention.
Fig. 3 is a shape assumption diagram of the present invention.
With reference to Fig. 1.Container 1 constitutes the thermostatic bath main body, by deflecting plate 2 container 1 is divided into work area 3 and temperature controlled region 4 two parts.Work area 3 is constant temperature parts that the user is really used.The temperature control temperature sensor promptly is immersed in the work area 3 and (marks among Fig. 1), in the upper fixed of temperature controlled region 4 motor 9 is arranged, and on its axle stirring arm 8 is housed.Spiral electric heater 5 on the outer race of motor and stirring arm reaches the helix refrigeration exchanger 6 by the good tubing coiled of heat conductivility, installs by same axis direction with motor 9.
In the empty frame line 12 is a refrigerating unit.Refrigerating unit constitutes the refrigerating unit main body by refrigerating compressor 13, and the one end is connected with condenser 14, and the other end is connected to evaporator 16, and the other end of evaporator 16 returns compressor 13, to form a closed pipeline.Evaporator 16 is contained in the refrigerant case 18, is perfused with cold medium 17(in the refrigerant case 18 because in the ordinary course of things, and the cold medium temperature can reach below 0 ℃, therefore, cold medium is answered spent glycol or ethylene glycol solution, or other low-freeing liquid), evaporator 16 just is immersed in the cold medium.In addition, another temperature sensor 20 also is immersed in the cold medium.Above refrigerant case 18, an infusion pump 19 also is housed, its feed tube 61 stretches into the bottom of cold medium 17, and the liquid outlet 60 of infusion pump is communicated with the feed tube 62 of the refrigerator 6 of device in bath temperature controlled region 4, and its drain pipe 63 also stretches in the refrigerant case.The 15th, prerotator is installed over against condenser 14.
In the lead-in wire difference access controller 58 of motor 9, electric heater 5, refrigerating compressor 13, blower fan 15, infusion pump 19 and sensor.
Thermostatic bath is when work, whole thermostatic process is all by controller 58 controls, and motor 9 drives paddle 8 runnings, by the guide functions of deflecting plate 2, the liquid flow path direction that working medium 7 is produced shown in 11, even with the temperature that guarantees working medium in work area 3.If the temperature of work area 3 is lower than the temperature value of setting, so, will be by controller 58 control electric heaters 5 energized, make the temperature booster heating, it produces heat by the stirring of stirring arm 8 and the effect of deflecting plate 2, make to add heat, work area 3 temperature are risen, till reaching setting value equably to work area 3 diffusions.If the temperature of work area 3 is higher than the temperature value of setting, so,, infusion pump 19 is started by controller 58 controls, the cold medium in the refrigerant case 18 17 is transported in the refrigeration exchanger 6 by pipeline 61,60, and refluxes by pipeline 63, form close cycle.Because cold medium temperature very low (following will mentioning), therefore the contained cold of cold medium carries out the cold exchange by the working medium in cool exchanger 6 tube walls and the temperature controlled region 4, by stirring and guide functions, temperature controlled region 4 temperature are descended, and 3 evenly disseminate in the work area, till reaching design temperature.
The low temperature of cold medium 17 is obtained by refrigerating unit, is perfused with refrigerant (as F12) in the unit pipeline.During compressor 13 work, promptly cold medium is lowered the temperature.
At thermostatic bath 1 and refrigerant case 18 outsides difference liner one deck heat-insulation layer 22,23.
Referring to Fig. 2.Fig. 2 is electric system 58 schematic diagrams among Fig. 1, divides control part 26 and measure portion 27.Measure portion 27 be actually one the same by sensor 25(with the temperature control sensor, by putting in the work area, mark in the drawings), the heat indicator that heat indicator circuit 28 and device for digit-displaying 29 formed directly shows the temperature value of work area in the thermostatic bath.
In the control circuit 26, the digital quantity output line of the initialization circuit 35 in the temperature preset circuit 30 is connected with preset value telltale 36, and analog quantity output line 37(is the output of prewired circuit 30) insert an input end 38 of difference amplifier 32.Insert the output line that also has trimming circuit 33 of this end simultaneously.Temperature sensing circuit 31 is bridge circuit amplifiers, and temperature control temperature sensor 24 inserts bridge circuit one arm, and bridge circuit=mouth is connected with bridge circuit amplifier 40=input end, and its mouth inserts another input end 39 of difference amplifier 32.The output of difference amplifier 32 input end of NAND gate 60 and the input of regulating control 34 simultaneously connects, and 34 2 exit points of regulating control seal in the loop of electrical network and temperature booster 5 compositions.
The 61st, the ambient temperature detecting element (is installed in and the external any part that contacts, do not show among the figure), at its two end and be connected to voltage grading resistor 43, the negative input end of comparator 42 is sent in its output, 42 positive input terminal is connected with the output line of prewired circuit, and another input end of NAND gate circuit 60 is sent in the output of comparator 42.The output of NAND gate 60 inserts and a door input end of 46 on the one hand, and the aspect is connected with relay coil 44 in addition, and the contact of relay 44 seals in the loop of liquid pump 19 and electrical network formation.
49 is comparators, an end and the sensor 47 and working power V that are immersed in the cold medium
+The branch pressure side connect the center head of another termination potential device 48.The output of comparator 49 also inserts an input end with door 46, and its output is connected to relay 100, and relay contact seals in the loop of compressor 13 and electrical network composition.In addition, and another input end of door 46 and its mouth between also cross-over connection by a circuit series of forming by differential circuit 45 and time delay circuit 44.
Its working process is such, the magnitude of voltage of bridge circuit amplifier out 41 has been represented the temperature value of control area, difference amplifier 32 carries out micro-difference to the output valve of this value and prewired circuit and amplifies, and the value after the amplification is by regulating control 34, the average heating power of control heater 5.The output valve 37 that 42 pairs of prewired circuits of comparator are sent here compares with the ambient temperature signal of self-potential device 43 outputs, when ambient temperature signal is higher than the level of the output 37 of prewired circuit (pre-amount temperature is lower than ambient temperature), comparator 42 outputs 0 level, anti-phase through NAND gate 60, drive relay 44 also as starting liquid pump 19 conditions, simultaneously also as one of condition that starts compressor 13.In fact, because starting beginning to cold exchange from compressor 13 has an effect, one section cooresponding time delay is arranged, therefore in time making refrigerating system really drop into constant temperature work, in the ambient temperature level input end of comparator 42, add a lead by potential device 43 adjustings, while is the level of exporting by 32 as this condition, if this level represented the thermostatic bath temperature and be higher than design temperature, liquid pump 19 is started, simultaneously as one of condition of compressor start.The logical signal of this two condition by NAND gate 60 outputs, according to the operating characteristic of present compressor, reaches the requirement to refrigerant constant temperature, and the starting of compressor 13 should meet following three conditions: delay time a period of time after (1) compressor shutdown; (2) refrigerant temperature is not reduced to lower limit (as-15 ℃); (3) predetermined value is lower than the actual temperature value of thermostatic bath medium.Three conditions are all set up, and just export significant level with logic 46, make relay 100 work, compressor start.Wherein, control is to be sensor 20 among Fig. 1 by sensor 47(to the lower limit temperature of refrigerant) and the level of adjusting by potential device 48 compare, realize by comparator 49 effective (as " 1 " level).Be lower than predetermined value as temperature, comparator 49 outputs are invalid, and invalid with logic 46 outputs, compressor quits work.When compressor shutdown, produce a skip signal with logic 46 mouths 50, through derivative element 45; make time delay circuit 44 zero clearings, output line 51 is an invalid signals, has only after certain time-delay; just produce useful signal, make with logic 46 output also effectively, compressor starts again.
Referring to Fig. 3.Fig. 3 is a shape assumption diagram of the present invention.Body portion is two major parts up and down.Thermostatic bath 1 and electric system 58 all concentrate in the upper box 52, and the upper box top is a stirring motor 9, and left part is the guidance panel 21 and the display panel 57 of electric system.The two sides, front and back of thermostatic bath main body 1 is the observation window that clear glass 53,54 is formed, and is equipped with the lamp box 55 that is independent of the thermostatic bath main body in addition in the behind of rear glass 54, like this, can clearly observe service condition in the groove from front glass 53.53 and 54 are double-layer glass structure, the compressor 13 in the refrigerating unit, refrigerant case 18, condenser 14(wherein evaporator 16 in refrigerant case 18), be placed in the lower part 56.
Claims (5)
1, a kind of thermostatic bath of forming by regulating control, prewired circuit, heat indicator, it is characterized in that one motor being arranged in the upper fixed of temperature controlled region, paddle be housed and stretch in the temperature controlled region on its axle, in its periphery coaxially by spiral electric heater and refrigeration exchanger are arranged.
2, thermostatic bath according to claim 1 is characterized in that temperature controlled region and operation interval are provided with deflecting plate in groove.
3, thermostatic bath according to claim 1 exchanger pipe one side that it is characterized in that freezing is connected to the liquid outlet of liquid pump, and opposite side stretches in the refrigerant case, and the inlet of liquid pump also stretches in the refrigerant case.
4, thermostatic bath according to claim 3 is characterized in that the evaporator in the refrigeration compressor set immerses in the refrigerant of refrigerant case.
5, thermostatic bath according to claim 1 is characterized in that medium box and shell have thermal insulation layer, and is provided with the observation window of double-layer glass structure in both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90215413 CN2124888U (en) | 1990-10-29 | 1990-10-29 | Constant temp. chute with function of refrigerating and heating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90215413 CN2124888U (en) | 1990-10-29 | 1990-10-29 | Constant temp. chute with function of refrigerating and heating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2124888U true CN2124888U (en) | 1992-12-16 |
Family
ID=4894703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90215413 Granted CN2124888U (en) | 1990-10-29 | 1990-10-29 | Constant temp. chute with function of refrigerating and heating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2124888U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104417908A (en) * | 2013-08-22 | 2015-03-18 | 国玺干细胞应用技术股份有限公司 | Biological product storage device with observation window |
| CN104609054A (en) * | 2013-11-01 | 2015-05-13 | 泰州卫岗乳品有限公司 | Automatic temperature control type fresh milk storage tank |
| CN104690101A (en) * | 2014-10-09 | 2015-06-10 | 安徽工程大学 | Wire drawing liquid cooling system and controlling method thereof |
| CN104886750A (en) * | 2015-04-11 | 2015-09-09 | 巩永凯 | Tobacco baking house system used for observing information in tobacco baking house |
| CN105263817A (en) * | 2013-08-22 | 2016-01-20 | 国玺干细胞应用技术股份有限公司 | Biological product storage device provided with observation element |
| CN105807141A (en) * | 2014-12-27 | 2016-07-27 | 黄大贵 | Vacuum interrupter internal resistance measuring device |
| CN106017620A (en) * | 2016-07-30 | 2016-10-12 | 温州恒海科技有限公司 | Calibration device with intelligent piston volume pipe |
| CN107264929A (en) * | 2017-06-09 | 2017-10-20 | 河南益和源饮品有限公司 | A kind of adjustable beverage bottle of temperature |
| 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 |
| CN110442118A (en) * | 2019-09-03 | 2019-11-12 | 郑州赛奥电子股份有限公司 | Winding temperature controller calibration equipment and its thermostatic bath system |
| CN111781968A (en) * | 2020-07-13 | 2020-10-16 | 阁壹系统集成设备(滁州)有限公司 | Constant temperature circulator of two accuses of high low temperature |
-
1990
- 1990-10-29 CN CN 90215413 patent/CN2124888U/en active Granted
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105263817A (en) * | 2013-08-22 | 2016-01-20 | 国玺干细胞应用技术股份有限公司 | Biological product storage device provided with observation element |
| CN104417908A (en) * | 2013-08-22 | 2015-03-18 | 国玺干细胞应用技术股份有限公司 | Biological product storage device with observation window |
| CN105263817B (en) * | 2013-08-22 | 2017-04-12 | 国玺干细胞应用技术股份有限公司 | Biological product storage device provided with observation element |
| CN104609054A (en) * | 2013-11-01 | 2015-05-13 | 泰州卫岗乳品有限公司 | Automatic temperature control type fresh milk storage tank |
| CN104690101A (en) * | 2014-10-09 | 2015-06-10 | 安徽工程大学 | Wire drawing liquid cooling system and controlling method thereof |
| CN105807141B (en) * | 2014-12-27 | 2019-06-07 | 杭州旭虹真空电器有限公司 | A kind of vacuum interrupter internal resistance measurement device |
| CN105807141A (en) * | 2014-12-27 | 2016-07-27 | 黄大贵 | Vacuum interrupter internal resistance measuring device |
| CN104886750A (en) * | 2015-04-11 | 2015-09-09 | 巩永凯 | Tobacco baking house system used for observing information in tobacco baking house |
| CN106017620A (en) * | 2016-07-30 | 2016-10-12 | 温州恒海科技有限公司 | Calibration device with intelligent piston volume pipe |
| CN106017620B (en) * | 2016-07-30 | 2023-04-28 | 温州恒海科技有限公司 | Intelligent piston volume tube calibrating device |
| CN107264929A (en) * | 2017-06-09 | 2017-10-20 | 河南益和源饮品有限公司 | A kind of adjustable beverage bottle of temperature |
| 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 |
| CN110442118A (en) * | 2019-09-03 | 2019-11-12 | 郑州赛奥电子股份有限公司 | Winding temperature controller calibration equipment and its thermostatic bath system |
| CN111781968A (en) * | 2020-07-13 | 2020-10-16 | 阁壹系统集成设备(滁州)有限公司 | Constant temperature circulator of two accuses of high low temperature |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2124888U (en) | Constant temp. chute with function of refrigerating and heating | |
| CN105004008B (en) | Convertible frequency air-conditioner low-temperature starting control method, control system and its air conditioner | |
| CN201295615Y (en) | High-precision intelligent thermostatic water bath apparatus | |
| CN110631319A (en) | Synthesize intelligent freezer defrosting device | |
| CN2352981Y (en) | Constant temperature device | |
| CN107678462B (en) | Constant-speed tank, constant-speed cooling system for constant-speed tank and constant-speed cooling method for constant-speed tank | |
| CN2256515Y (en) | Furry controller for fan-coil air conditioner | |
| CN103706416A (en) | Thermostatic bath system | |
| CN215216873U (en) | Intelligent wine cabinet with defrosting power automatic regulating function | |
| CN2591531Y (en) | Low-temperature cold accumulation circulating water machine set | |
| CN213687377U (en) | Refrigerating device for constant temperature and humidity climate test box | |
| CN210663548U (en) | Comprehensive intelligent defrosting device for refrigeration house | |
| CN113218447B (en) | Oil level self-balancing test equipment for oil-cooled motor test | |
| CN212462541U (en) | Low-voltage switch cabinet | |
| CN2137536Y (en) | Electronic temp.-controlling device for transfusion system | |
| CN2436935Y (en) | Standard holding box for cement specimen | |
| CN209342731U (en) | A kind of multistation immune response chip incubator | |
| CN2185409Y (en) | Air-conditioner for fully automatic refrigerator | |
| US4191026A (en) | Apparatus for defrosting low temperature heat exchanger | |
| GB1586308A (en) | Apparatus for de-frosting low temperature heat exchanger | |
| CN213590507U (en) | Improved constant temperature and humidity climate test box | |
| CN2362114Y (en) | Thermal energy meter | |
| CN209763523U (en) | Water chilling unit with temperature control function | |
| CN205107074U (en) | Cold and hot food show cupboard | |
| CN214060531U (en) | Automatic change medicine device of gene improvement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |