CN106843310A - A kind of 0 DEG C of signal generator and its implementation - Google Patents
A kind of 0 DEG C of signal generator and its implementation Download PDFInfo
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- CN106843310A CN106843310A CN201710164035.2A CN201710164035A CN106843310A CN 106843310 A CN106843310 A CN 106843310A CN 201710164035 A CN201710164035 A CN 201710164035A CN 106843310 A CN106843310 A CN 106843310A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 113
- 239000010935 stainless steel Substances 0.000 claims abstract description 87
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 87
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims abstract description 37
- 229910052753 mercury Inorganic materials 0.000 claims abstract description 37
- 238000009413 insulation Methods 0.000 claims abstract description 11
- 238000005057 refrigeration Methods 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 125000004122 cyclic group Chemical group 0.000 claims description 3
- 238000005538 encapsulation Methods 0.000 claims description 3
- 230000002269 spontaneous effect Effects 0.000 claims description 3
- 206010008190 Cerebrovascular accident Diseases 0.000 claims description 2
- 208000006011 Stroke Diseases 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 229910052709 silver Inorganic materials 0.000 claims description 2
- 239000004332 silver Substances 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims 1
- 239000004814 polyurethane Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 abstract description 25
- 230000008859 change Effects 0.000 abstract description 16
- 230000006641 stabilisation Effects 0.000 abstract description 2
- 238000011105 stabilization Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 16
- 239000007789 gas Substances 0.000 description 10
- 238000012546 transfer Methods 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 210000004534 cecum Anatomy 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000005457 ice water Substances 0.000 description 4
- 239000004020 conductor Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000005619 thermoelectricity Effects 0.000 description 2
- 235000008645 Chenopodium bonus henricus Nutrition 0.000 description 1
- 244000138502 Chenopodium bonus henricus Species 0.000 description 1
- 101000860173 Myxococcus xanthus C-factor Proteins 0.000 description 1
- 230000005679 Peltier effect Effects 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002510 pyrogen Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/1927—Control of temperature characterised by the use of electric means using a plurality of sensors
- G05D23/193—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces
- G05D23/1931—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces to control the temperature of one space
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- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Production, Working, Storing, Or Distribution Of Ice (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses a kind of 0 DEG C of signal generator and its implementation.The signal generator, including stainless steel casing, stainless steel blind pipe, U-shaped mercury tube electric contact type temperature controller, temperature-control circuit, operating circuit, thermoelectric element, heat-insulation layer, fan, agitator.The present invention causes the height of the water surface to fluctuate up and down according to the number change of ice in mixture of ice and water in stainless steel casing, cause the pressure change of water surface overhead gas, height of the mercury in two pipes of U-tube changes during the change of gas pressure makes U-shaped mercury tube electric contact type temperature controller, mercury face position can send refrigeration, heat and signal out of service by temperature-control circuit and operating circuit thermoelectric element and fan, the signal generator is in refrigeration-stopping-refrigeration, or work is circulated between heat-stop-heating, there is provided 0 DEG C of signal of stabilization.Simple structure of the present invention, it is with low cost, using not limited by environmental condition, and can simultaneously provide multiple 0 DEG C of signal.
Description
Technical field
The invention belongs to semiconductor heat electrical effect field, and in particular to a kind of 0 DEG C of signal generator and its implementation.
Background technology
The operation principle of resistorized zero point instrument is：Water, container outer surface and half are full of in a closing heavy wall copper vessel
Conductor thermoelectric element is in close contact.Semicondcutor thermoelements freeze after accessing direct current, make the temperature drop of water in container.Work as water
After temperature declines to a certain extent, the water closest to thermoelectric element starts to freeze.At this moment it is mixture of ice and water state in container, it is theoretical
The temperature of upper mixture is 0 DEG C.With the work of thermoelectric element, the icing amount in container gradually increases.In container internal upper part also
A bellows is provided with, his outside contacts with water, and there is temperature controller contact switch inside, its operation principle is：When in container
When all water or fewer icing amount, temperature controller contact is off, at this moment temperature control circuit thermoelectric element circuitry hair
Go out working signal, thermoelectric element is in refrigerating operaton working condition.Volumetric expansion after the water freezing of bottom, closed vessel internal upper part
Water is compressed, pressure rise, bellows be pressurized after contraction in length, positioned between the contact and contact thereon of bottom in bellows
Distance diminish.When icing amount reaches to a certain degree, two contacts are in contact, and at this moment temperature control circuit thermoelectric element circuitry sends
Stop signal, stops ice making.After stopping ice making, external heat conducts makes ice gradually melt into container, and ice amount is reduced in container,
The pressure of water diminishes, and bellows elongation, temperature controller contact is again off, and thermoelectric element carries out ice making work again." system above
The process of temperature controller contact disconnection → refrigeration icing after cold junction ice → temperature controller closing of contact stopping icing → part ice-out " is followed
Ring is carried out, so that remaining the state of mixture of ice and water in container.
Be drilled with a diameter very little, deeper blind hole in the ad-hoc location of heavy wall copper vessel wall, blind hole one end open with
The external world is communicated, other end closing, and very close to mixture of ice and water, because the heat conductivility of copper is fine, therefore blind hole is closed
Closely 0 DEG C of the temperature at end, can be used to outwards export 0 DEG C of signal.
There is the deficiency of several aspects in existing resistorized zero point instrument：
1. the ice and water in container remain static, and in the melting process of ice-making process and ice, certainly exist heat conduction.By leading
Pyrogen is managed, and temperature difference is certainly existed in mixture of ice and water, and temperature field is uneven, the temperature for there was only frozen water interface in mixture
It is 0 DEG C to spend, and the cecum of blind hole is necessarily placed at this position, therefore existing zero-point ballance instrument can only set a blind hole and be used for outwards
0 DEG C of signal of output；
2. one end of blind hole communicates with ambient atmosphere, in order to reduce cecum temperature of the ambient temperature to blind hole（I.e. 0 DEG C）Influence,
Blind hole must make diameter very little, the elongated hole with suitable depth, using the heat-blocking action of air in the elongated hole, reduce outer
The influence of boundary's temperature；
3. zero-point ballance instrument is generally used for providing 0 DEG C of signal for temperature sampler (such as thermocouple), two reasons due to more than, one
Zero-point ballance instrument is once only a temperature sampler and provides 0 DEG C of signal；
4. in blind hole air capacity seldom, thermal capacity also very little.After temperature sampler injects blind hole, to the temperature of blind hole cecum（0
℃）Influence is very big, it is necessary to wait longer time, cecum temperature can just revert to 0 DEG C.This is unfavorable for that temperature sampler is quickly obtained
Obtain 0 DEG C of signal；
5. existing zero-point ballance instrument requires the temperature of its working environment more than 0 DEG C, what this can be achieved in general laboratory, but
It is the field of such as low temperature test room, or cold under conditions of some are special, the water in zero-point ballance instrument is under idle state
At this moment frozen Cheng Bing, existing zero-point ballance instrument cannot be provided out 0 DEG C of signal；
6. existing zero-point ballance instrument uses heavy wall copper vessel and bellows temperature controller as critical piece, and this two modular constructions are answered
Miscellaneous, manufacture is difficult, and price is higher, causes zero-point ballance instrument expensive.
The content of the invention
In view of the shortcomings of the prior art, it is an object of the invention to provide a kind of 0 DEG C of signal generator and its implementation,
The signal generator low cost, the requirement than resistorized zero point instrument to working environment is low, has a wide range of application.
A kind of 0 DEG C of signal generator, including stainless steel casing, the stainless steel casing built with water, the stainless steel case
Body top is inserted with stainless steel blind pipe at least provided with 1 first opening in each first opening, the stainless steel blind pipe built with
Heat-conducting medium, the heat-conducting medium is completely immersed in water, and the stainless steel casing side is provided with second and opens near the position on top
Mouthful, second opening connects with U-shaped mercury tube electric contact type temperature controller, the U-shaped mercury tube electric contact type temperature control
Device processed is connected with temperature-control circuit and operating circuit successively by the upper electric contact and lower electric contact on the pipe of right side, the upper electricity
Contact is located at lower electric contact top, and the stainless steel cabinet wall side is provided with agitator, the stainless steel casing near bottom
Bottom outside centre position is provided with thermoelectric element, and the thermoelectric element lower section is provided with fan, and the stainless steel casing outside is provided with
Heat-insulation layer, the mouth of pipe of the thickness less than stainless steel blind pipe of the heat-insulation layer.
It is that the material of the heat-insulation layer is polyurethane foam plastics as improved.
It is that the stainless steel casing top is provided with 4 first openings as improved.
The implementation of above-mentioned 0 DEG C of signal generator, comprises the following steps：
Step 1, takes 0 DEG C of signal generator, removes any stainless steel blind pipe, adds water so that the heat conduction in stainless steel blind pipe is situated between
Matter is completely immersed in water, and the stainless steel blind pipe that then will be removed is installed after going back, and encapsulation process stainless steel blind pipe is opened with first
The contact position of mouth；
Step 2, powers to operating circuit, when environment temperature is higher than 0 DEG C, all water in stainless steel casing, and at this moment U-tube is electric
Mercury is less than lower electric contact in the pipe of contact controller right side, and temperature-control circuit sends ice making signal, work electricity to operating circuit
Road direction thermoelectric element exports direct current, and the direct current direction causes that thermoelectric element is operated under ice-make mode, thermoelectric element with not
The side temperature of rust steel casing contact is less than 0 DEG C, and less than the water temperature in casing, therefore thermoelectric element absorbs the heat of water,
When water temperature drop is to less than 0 DEG C, water starts to freeze, and the water surface rises, and the gas pressure on the water surface becomes big, causes U-tube electric contact
Mercury face rises in the right side pipe of controller, mercury and lower electricity in icing amount increases to U-tube electric contact controller right side pipe
During contacts, temperature-control circuit sends signal out of service to operating circuit, and thermoelectric element and fan are out of service, this
When, external heat is transmitted in casing so that ice starts to melt, and mercury is less than lower electric contact, temperature control in causing right side pipe
Circuit sends ice making signal to operating circuit again, and so circulation is carried out, it is ensured that water and stainless steel blind pipe in stainless steel casing
In heat conduction oil temperature at 0 DEG C, can accurately export 0 DEG C of signal；When environment temperature is less than 0 DEG C, the water in stainless steel casing
Spontaneous to build-up ice, at this moment mercury is higher than upper electric contact in the pipe of U-tube electric contact temp controller right side, and temperature-control circuit is to work
Sent as circuit and heat signal, operating circuit thermoelectric element output direct current, the phase when direct current direction is with refrigeration mode
Instead so that thermoelectric element runs in a heating mode, the side temperature that thermoelectric element is contacted with stainless steel casing is higher than 0 DEG C, heat
Electric device releases heat to the ice in casing, the temperature of ice is risen and is melted, when U-tube electric contact temp controller right side is managed
Middle mercury is less than upper electric contact, and temperature-control circuit sends signal out of service to operating circuit, and thermoelectric element and fan stop
Operation, because water transmits heat to cold environment in stainless steel casing, part water build-ups ice again, causes U-tube right side Guan Shui
Silver is higher than again upper electric contact, and temperature-control circuit sends to operating circuit and heats working signal again, and so circulation is carried out, it is ensured that
The heat conduction oil temperature in water and stainless steel blind pipe in stainless steel casing can accurately export 0 DEG C of signal, its apoplexy at 0 DEG C
Fan has operating circuit to power with agitator, and agitator works always in cyclic process, it is ensured that frozen water mixing in stainless steel casing
Thing temperature is uniform.
It is that heat-conducting medium is conduction oil in step 1 as improved.
0 DEG C of operation principle of signal generator of the invention：
1st, after thermoelectric element accesses direct current, paltie effect (Peltier effect), that is, thermoelectricity are produced inside it
The temperature in one face of element is raised, and outwardly releases heat, and the temperature in another face is reduced, and heat is absorbed from the external world.When
When the direct current of access thermoelectric element is reverse, the high temperature face of thermoelectric element and low temperature face also exchange.It is therefore not necessary to change heat
The position of electric device, as long as change accessing the galvanic direction of thermoelectric element, you can realize thermoelectric element from the surface for being contacted
Absorb the functional shift that heat (refrigeration) releases heat (heating) to the surface to being contacted.Can be made using semicondcutor thermoelements
Performance that is cold, heating is main operational principle of the invention.
2nd, the temperature of the mixture of aqueous water and ice is 0 DEG C in theory, but in static mixture of ice and water, due to mixed
Compound and the heat transfer in the external world, the heat transfer of Yi Jibing, water mutual transition process occur thermal stratification in aqueous water,
Therefore the temperature in water is uneven, is only only 0 DEG C in their interface.Water is flowed using agitator, so as to disappear
Temperature unevenness in deicing aqueous mixtures, is the operation principle of the present invention uniform 0 DEG C of water of acquisition.
3rd, there is difference in the density of aqueous water and ice, when phase co-conversion is carried out between them, the volume of mixture of ice and water
Change.In the closed container with the presence of gas, the volume of gas also changes, so as to cause the change of gas pressure
Change, the frozen water ratio in the size and mixture of pressure change is relevant.Using the size of gas pressure change, can be as control
The signal of frozen water ratio in mixture.The change of gas pressure in closing space is produced using frozen water density contrast, so as to control half
The work of conductor thermoelectric element, is the operation principle for obtaining constant 0 DEG C of the invention.
Beneficial effect
Compared with prior art, the advantage of the invention is that：
1st, simple structure of the present invention, easily manufactured, and the existing resistorized zero point instrument preparation cost that compares is low；
2nd, the conduction oil in stainless steel blind pipe has larger thermal capacity, the entrance (such as thermocouple) of extraneous sampler, to heat conduction
The influence of oily 0 DEG C of temperature is smaller.And due to the good heat conductivity of conduction oil, blind pipe is completely attached to mixture of ice and water, is subject to
The heat conduction oil temperature of disturbance can soon quick-recovery to 0 DEG C.And the heat capacity of air amount in existing resistorized zero point instrument blind hole is small, conduct heat energy
Power is poor, the temperature in blind hole due to sampler entrance and fluctuation, and revert to 0 DEG C and need longer time；
3rd, this 0 DEG C of signal generator can install many blind pipes on stainless steel casing, each stainless steel blind pipe all can independently to
0 DEG C of signal of outer offer, and existing resistorized zero point instrument can only provide 0 DEG C of signal；
4th, agitator is provided with stainless steel casing, the agitator can eliminate the inhomogeneities of Temperature Distribution in water, strengthens water
Heat exchange between ice, makes 0 DEG C at ice-water interface of water spread rapidly, uniform such that it is able to make the water in casing turn into temperature
0 DEG C of water；
5th, using U-shaped mercury tubular type electric contact temp controller as temperature control component, the temperature controller is settable two
Electric contact, according to this two conductings of electric contact whether, can respectively be sent to semicondcutor thermoelements refrigeration work instruction and make
Hot work order.And the temperature control component only one of which conducting state of existing resistorized zero point instrument, can only operate in refrigeration
Pattern；
6th, 0 DEG C is above according to environment temperature, is also above 0 DEG C, the semicondcutor thermoelements in this 0 DEG C of signal generator can divide
It is not operated under refrigeration mode and heating mode, the working environment of the whether working environment of normal temperature, or cold, this 0 DEG C letter
Water in number generator can all remain the state of mixture of ice and water, can outwards export 0 DEG C of signal.And existing resistorized zero point
Instrument can only operate in normal temperature environment.
Brief description of the drawings
Fig. 1 is 0 DEG C of structural representation of signal generator of the invention, wherein, 1- heat-insulation layers, 2- stainless steel casings, 3- is not
Rust steel blind pipe, 4- gases, 5-U shape pipe electric contact type temperature controllers, the upper electric contacts of 6-, electric contact under 7-, 8- temperature controls electricity
Road, 9- mercurys, 10- operating circuits, 11- fans, 12- thermoelectric elements, 13- agitators, 14- mixture of ice and water, 15- conduction oils,
The 16- waters surface.
Specific embodiment
Embodiment 1
A kind of 0 DEG C of signal generator, including stainless steel casing 2, the stainless steel casing 2 built with water, the stainless steel casing 2
Top is provided with 4 first openings, and stainless steel blind pipe 3 is inserted with each first opening, and the stainless steel blind pipe 3 is built with heat conduction
Medium, the heat-conducting medium is completely immersed in water, and the side of stainless steel casing 2 is provided with the second opening near the position on top,
Second opening connects with U-shaped mercury tube electric contact type temperature controller 5, the U-shaped mercury tube electric contact type temperature control
Device 5 is connected with temperature-control circuit 8 and operating circuit 10 successively by the upper electric contact 6 and lower electric contact 7 on the pipe of right side, described
Upper electric contact 6 is located at the top of lower electric contact 7, and the inwall side of the stainless steel casing 2 is provided with agitator 13 near bottom, described
The bottom outside centre position of stainless steel casing 2 is provided with thermoelectric element 12, and the lower section of the thermoelectric element 12 is provided with fan 11, it is described not
The outside of rust steel casing 2 is provided with heat-insulation layer 1, the mouth of pipe of the thickness less than stainless steel blind pipe 3 of the heat-insulation layer 1.
The implementation of above-mentioned 0 DEG C of signal generator, comprises the following steps：
Step 1, takes 0 DEG C of signal generator, removes any stainless steel blind pipe, adds water so that the heat conduction in stainless steel blind pipe is situated between
Matter is completely immersed in water, and the stainless steel blind pipe that then will be removed is installed after going back, and encapsulation process stainless steel blind pipe is opened with first
The contact position of mouth；
Step 2, powers to operating circuit 10, when environment temperature is higher than 0 DEG C, all water in stainless steel casing 2, at this moment U-shaped
Mercury 9 is less than lower electric contact 7 in the right side pipe of pipe electric contact controller 5, and temperature-control circuit 8 sends ice making to operating circuit 10 to be believed
Number, the output direct current of 10 thermoelectric element of operating circuit 12, the direct current direction causes that thermoelectric element 12 operates in ice-make mode
Under, the side temperature that thermoelectric element 12 is contacted with stainless steel casing 2 is less than 0 DEG C, and less than the water temperature in casing, therefore thermoelectricity
Element 12 absorbs the heat of water, and when water temperature drop is to less than 0 DEG C, water starts to freeze, and the water surface 16 rises, the gas in the overhead of the water surface 16
4 pressure become big, and mercury face rises in causing the right side pipe of U-tube electric contact controller 5, when icing amount increases to U-tube electric contact
When mercury 9 is contacted with lower electric contact 7 in the right side pipe of controller 5, temperature-control circuit 8 sends letter out of service to operating circuit 10
Number, thermoelectric element 12 and fan 11 are out of service, and now, external heat is transmitted in casing so that ice starts to melt, and causes the right side
Mercury 9 is less than lower electric contact 7 in side pipe, and temperature-control circuit 8 sends ice making signal to operating circuit 10 again, so circulate into
OK, it is ensured that the heat conduction oil temperature in water and stainless steel blind pipe 3 in stainless steel casing 2 can accurately export 0 DEG C of letter at 0 DEG C
Number；When environment temperature is less than 0 DEG C, water in stainless steel casing 2 is spontaneous to build-up ice, at this moment U-tube electric contact temp controller 5
Mercury 9 is higher than upper electric contact 6 in the pipe of right side, and temperature-control circuit 8 sends to operating circuit 10 and heat signal, operating circuit 10 to
Thermoelectric element 12 exports direct current, opposite when the direct current direction is with refrigeration mode so that thermoelectric element 12 is operated in and heated
Under pattern, the side temperature that thermoelectric element 12 is contacted with stainless steel casing 2 is higher than 0 DEG C, and thermoelectric element 12 is put to the ice in casing
Go out heat, the temperature of ice is risen and is melted, when mercury 9 is less than upper electric contact in the right side pipe of U-tube electric contact temp controller 5
6, temperature-control circuit 8 sends signal out of service to operating circuit 10, and thermoelectric element 12 and fan 11 are out of service, due to not
Water transmits heat to cold environment in rust steel casing 2, and part water build-ups ice again, causes the pipe mercury 9 on the right side of U-tube to be higher than again
Upper electric contact 6, temperature-control circuit 8 is sent to operating circuit 10 and heats working signal again, and so circulation is carried out, it is ensured that stainless steel
The heat conduction oil temperature in water and stainless steel blind pipe 3 in casing 2 can accurately export 0 DEG C of signal, wherein fan 11 at 0 DEG C
There is operating circuit 10 to power with agitator 13, agitator 13 works always in cyclic process, it is ensured that frozen water in stainless steel casing 2
Mixture temperature is uniform.As for the distance between the upper electric contact 6 and lower electric contact 7 by the water surface of stainless steel casing 2 above
Air capacity decision, the spacing of most suitable observation and operation can be fallen back on out according to pressure.
After 0 DEG C of signal generator incoming transport power supply of the invention, according to icing amount in mixture of ice and water in stainless steel casing 1
Number, the number change of ice causes the height of the water surface to fluctuate up and down, causes the pressure change of water surface overhead gas, gas pressure
Change make U-shaped mercury tube electric contact type temperature controller in height of the mercury in two pipes of U-tube change, therefore
The face of mercury 9 in U-shaped mercury tube electric contact type temperature controller 5 is located below one in three positions：1st, connect less than lower electricity
Point；2nd, higher than upper electric contact；3rd, between upper electric contact, lower electric contact.These three mercury face positions can be by temperature control
Circuit 8 and the thermoelectric element 12 of operating circuit 10 and fan 11 send refrigeration, heat and signal out of service.No matter mercury face
How is position, and operating circuit 10 can all power to agitator 13, so that water is in flow regime all the time, strengthens the heat between frozen water
Transmission, makes 0 DEG C at ice-water interface of water be diffused rapidly to other spaces of casing, eliminates the inhomogeneities of Temperature Distribution in water,
The stainless steel casing 1 of i.e. 0 DEG C signal generator comparatively fast reaches uniform, stabilization 0 DEG C, leading in conduction oil in stainless steel blind pipe 3
Under heat effect, temperature also reaches 0 DEG C, can outwards export 0 DEG C of signal.During steady operation, the quantity of ice still exists in mixture of ice and water
It is continually changing, U-tube mercury face is fluctuated near upper electric contact or lower electric contact, signal generator is in refrigeration-stopping-system
It is cold, or work is circulated between heat-stop-heating.
Part effect is as follows in the present invention：
Heat-insulation layer can reduce mixture of ice and water and the heat exchange of external environment in stainless steel casing, not only facilitate guard box
Internal temperature, can also reduce by 0 DEG C of electrical working time of signal generator, reduce power consumption.
In mixture of ice and water in stainless steel blind pipe insertion stainless steel casing, because the conduction oil in stainless steel blind pipe can be with
Mixture of ice and water carries out being fully contacted heat transfer, therefore, when 0 DEG C of signal generator steady operation, the temperature and frozen water of conduction oil
Mixture temperature is equal, can be provided out 0 DEG C of signal.Because conduction oil has larger thermal capacity, when insertion temperature sampling
During device, conduction oil temperature change is smaller, and due to conduction oil and the good heat transfer of mixture of ice and water, the temperature of conduction oil can be fast
Quick-recovery is to 0 DEG C.
Agitator stirring flows water, eliminates the uneven problem of water temperature in stainless steel casing, strengthens the heat transfer of water and ice,
So that 0 DEG C of the water ice-water interface that speeds away flows to casing everywhere at ice-water interface, therefore, 0 DEG C of signal generator steady operation
When casing in water be uniform 0 DEG C of water.
Thermoelectric element can work under the control of temperature-control circuit in ice making or under heating both of which, make many in casing
Remaining water freezing, or make unnecessary ice-out Cheng Shui, keep the mixture of ice and water state in casing.
Fan can strengthen the heat transfer between thermoelectric element and environment, improve the service behaviour of focus element.
These are only presently preferred embodiments of the present invention, it is impossible to the scope that its restriction present invention is implemented, i.e., do not depart from substantially
The replacement of present inventive concept and amendment, still fall within protection scope of the present invention.
Claims (5)
1. a kind of 0 DEG C of signal generator, it is characterised in that including stainless steel casing（2）, the stainless steel casing（2）Built with
Water, the stainless steel casing（2）Top is inserted with stainless steel blind pipe at least provided with 1 first opening in each first opening
（3）, the stainless steel blind pipe（3）Built with heat-conducting medium, the heat-conducting medium is completely immersed in water, the stainless steel casing
（2）Side is provided with the second opening, second opening and U-shaped mercury tube electric contact type temperature controller near the position on top
（5）Connection, the U-shaped mercury tube electric contact type temperature controller（5）By the upper electric contact on the pipe of right side（6）With lower electric contact
（7）Successively with temperature-control circuit（8）And operating circuit（10）Connection, the upper electric contact 6 is located at lower electric contact（7）Top,
The stainless steel casing（2）Inwall side is provided with agitator near bottom（13）, the stainless steel casing（2）In the middle of bottom outside
Position is provided with thermoelectric element（12）, the thermoelectric element（12）Lower section is provided with fan（11）, the stainless steel casing（2）Outside sets
There is heat-insulation layer（1）, the heat-insulation layer（1）Thickness be less than stainless steel blind pipe（3）The mouth of pipe.
2. a kind of 0 DEG C of signal generator according to claim 1, it is characterised in that the heat-insulation layer（1）For polyurethane is sent out
Foamed material.
3. a kind of 0 DEG C of signal generator according to claim 1, it is characterised in that the stainless steel casing（2）Top sets
There are 4 first openings.
4. the implementation of a kind of 0 DEG C of signal generator being based on described in claim 1, it is characterised in that comprise the following steps：
Step 1, takes 0 DEG C of signal generator, removes any stainless steel blind pipe, adds water so that the heat conduction in stainless steel blind pipe is situated between
Matter is completely immersed in water, and the stainless steel blind pipe that then will be removed is installed after going back, and encapsulation process stainless steel blind pipe is opened with first
The contact position of mouth；
Step 2, powers to operating circuit, when environment temperature is higher than 0 DEG C, all water in stainless steel casing, and at this moment U-tube is electric
Mercury is less than lower electric contact in the pipe of contact controller right side, and temperature-control circuit sends ice making signal, work electricity to operating circuit
Road direction thermoelectric element exports direct current, and the direct current direction causes that thermoelectric element is operated under ice-make mode, thermoelectric element with not
The side temperature of rust steel casing contact is less than 0 DEG C, and less than the water temperature in casing, therefore thermoelectric element absorbs the heat of water,
When water temperature drop is to less than 0 DEG C, water starts to freeze, and the water surface rises, and the gas pressure on the water surface becomes big, causes U-tube electric contact
Mercury face rises in the right side pipe of controller, mercury and lower electricity in icing amount increases to U-tube electric contact controller right side pipe
During contacts, temperature-control circuit sends signal out of service to operating circuit, and thermoelectric element and fan are out of service, this
When, external heat is transmitted in casing so that ice starts to melt, and mercury is less than lower electric contact, temperature control in causing right side pipe
Circuit sends ice making signal to operating circuit again, and so circulation is carried out, it is ensured that water and stainless steel blind pipe in stainless steel casing
In heat conduction oil temperature at 0 DEG C, can accurately export 0 DEG C of signal；When environment temperature is less than 0 DEG C, the water in stainless steel casing
Spontaneous to build-up ice, at this moment mercury is higher than upper electric contact in the pipe of U-tube electric contact temp controller right side, and temperature-control circuit is to work
Sent as circuit and heat signal, operating circuit thermoelectric element output direct current, the phase when direct current direction is with refrigeration mode
Instead so that thermoelectric element runs in a heating mode, the side temperature that thermoelectric element is contacted with stainless steel casing is higher than 0 DEG C, heat
Electric device releases heat to the ice in casing, the temperature of ice is risen and is melted, when U-tube electric contact temp controller right side is managed
Middle mercury is less than upper electric contact, and temperature-control circuit sends signal out of service to operating circuit, and thermoelectric element and fan stop
Operation, because water transmits heat to cold environment in stainless steel casing, part water build-ups ice again, causes U-tube right side Guan Shui
Silver is higher than again upper electric contact, and temperature-control circuit sends to operating circuit and heats working signal again, and so circulation is carried out, it is ensured that
The heat conduction oil temperature in water and stainless steel blind pipe in stainless steel casing can accurately export 0 DEG C of signal, its apoplexy at 0 DEG C
Fan has operating circuit to power with agitator, and agitator works always in cyclic process, it is ensured that frozen water mixing in stainless steel casing
Thing temperature is uniform.
5. the implementation of a kind of 0 DEG C of signal generator according to claim 4, it is characterised in that heat conduction is situated between in step 1
Matter is conduction oil.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115155089A (en) * | 2022-06-23 | 2022-10-11 | 泰兴金江化学工业有限公司 | Pressure balancing device for ethyl acetate rectifying tower |
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| JPH09135274A (en) * | 1995-11-07 | 1997-05-20 | Japan Radio Co Ltd | Fading simulator for digital communication |
| JP2001116834A (en) * | 1999-10-22 | 2001-04-27 | Mitsubishi Electric Corp | Radar system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115155089A (en) * | 2022-06-23 | 2022-10-11 | 泰兴金江化学工业有限公司 | Pressure balancing device for ethyl acetate rectifying tower |
| CN115155089B (en) * | 2022-06-23 | 2024-01-05 | 泰兴金江化学工业有限公司 | Pressure balancing device for ethyl acetate rectifying tower |
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