CN103060776B - A constant temperature system for a heating stage - Google Patents
A constant temperature system for a heating stage Download PDFInfo
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- CN103060776B CN103060776B CN201210583178.4A CN201210583178A CN103060776B CN 103060776 B CN103060776 B CN 103060776B CN 201210583178 A CN201210583178 A CN 201210583178A CN 103060776 B CN103060776 B CN 103060776B
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Abstract
The present invention discloses a constant temperature system for a heating stage, which is characterized by comprising: a mechanical device portion composed of a heat-insulating device and a greenhouse gas servo supply system, and an electrical device portion composed of an electrical control system and an electrical execution system; wherein the heat-insulating device and the supply system of the mechanical device portion are connected via a gas circuit; the electrical device portion is installed in an electrical component cabinet of the heat-insulating device, and is connected with controlled elements via a circuit; the heat-insulating device is a double-layer cavity body composed of an arc top at the upper part of a vertical cross-section and a rectangle assembly at the lower part of vertical cross-section, including a heat-insulating layer outer wall, an inner wall, an inflatable cavity and an upper connecting plate and a lower connecting plate connecting the outer wall and the inner wall, the whole inflatable cavity has connectedness, and the inner walls of the outer wall and inner wall of the heat-insulating layer are covered with space insulation porcelain coatings; the electrical control system is formed by three parts of a control switch, a control relay switch and a control power; and the electrical execution system constitutes of four parts of a relay contact switch, an electrical actuator, an executive power and an protection device.
Description
Technical field
The present invention relates to temperature control technology, specifically one is applicable to the warm table constant temperature system using in cadmium telluride (CdTe) thin-film solar cells production line.
Background technology
Current, thin-film solar cells has become new trend and the focus of photovoltaic market development.CdTe thin-film solar cells is efficient, stable, cheap because of its material, has become the main object of external many developed countries research and development, and has produced in batches.China CdTe thin-film solar cells, in laboratory phase of basic research, not yet realizes large-scale industrialization, the main dependence on import of nucleus equipment at present.In CdTe thin-film solar cells production line, the function of warm table is before substrate glass enters sediment chamber, conductive glass to be heated to the underlayer temperature that deposition needs under vacuum environment, is to realize successive sedimentation CdTe, ensures the key device of battery quality.By analysis, the subject matter that in existing installation, warm table exists is because calorific loss causes temperature fluctuation large, thereby affects quality product.The major cause of the temperature fluctuation by heating environment in analytical system is in warm table device, to lack effective constant temperature system.The the scattering and disappearing of heat that the isoperibol of current warm table mainly relies on stuffed heat insulated better performances material between the inwall of warm table and outer wall or material to form thermal insulation layer to reduce warm table internal system.This measure that maintains heating environment constant temperature is passive obtaining, and the heat that can not be dissipated in environment warm table in time compensates, and then causes the temperature larger fluctuation in heating system, finally has influence on the quality of product.
The carrying out in range of search the close keyword such as constant temperature system and heat-insulation system applicant, the patent of invention document retrieving is: a kind of constant temperature system (application number 201010246215.3), it discloses a kind of constant temperature system with circulating heater for solution constant temperature, this system adopts hot water as thermal medium, hot water, by the circulating line outside wall of container, is heated and insulation the solution in container; A kind of polycrystal silicon ingot stove heat-insulation system of patent of invention (application number 200910304187.3), a kind of heat-insulation system that utilizes polycrystalline silicon ingot or purifying furnace is disclosed, this system has mainly increased and has not carried out fiberboard in heating furnace body outside, utilizes the insulative properties of this material to realize the insulation of body of heater inside; The furnace linings for energy-saving heat-insulation system (application number 201010542448.8) of a kind of pit furnace of patent of invention, it discloses a kind of the furnace linings for energy-saving heat-insulation system of pit furnace, be provided with body of heater and be arranged on the resistance wire in body of heater, utilize ceramic beaverboard and ceramic fiber blanket as lagging material, keep the temperature in body of heater by the resistance wire heating power in weighting material; The disclosed heat-insulation system of a kind of heat-insulation system (application number 201110140054.4) of patent of invention is mainly the application scenario for heating and the insulation of glue, and the technical scheme of employing is to utilize the hot water in interlayer to realize the insulation to hot glue; Also has utility model patent coil type constant temperature system (application number 200920048365.6), the coil type constant temperature system that it is addressed adopts the material of good heat conductivity to make plate-like conduit, underground water is passed in conduit, being used for forming the constant temperature system of lesser temps, is the core component that forms underground water air conditioner.
The above analysis, not yet find the applicable technical scheme of thin-film solar cells production warm table, if traditional simple interpolation lagging material thermofin method (scheme being provided as application number 200910304187.3, application number 201010542448.8 patents) is provided to be maintained constant temperature by passive mode and is difficult to realize the homo(io)thermism that keeps heating system, while, due to the outside dimension of the introducing meeting increasing device of weighting material thermofin, has increased volume and the production cost of whole equipment.And the method that in all the other patents, related middle cavity passes into thermal medium is carried out the active constant temperature method of replenishment system thermal losses, can reduce preferably the heat fluctuation of system, but prior art and structure are mainly to utilize hot water to carry out transferring heat as thermal medium, this technical scheme cannot meet the requirement of 600 degrees Celsius of normal range of operation of thin-film solar cells production warm table.
Summary of the invention
For the deficiencies in the prior art, the problem that quasi-solution of the present invention is determined is, a kind of warm table constant temperature system is proposed, this constant temperature system adopts at heating unit inwall and uses the adiabatic enamel coating of space, this reflectivity adiabatic coating has reduced thermal losses effectively, and adiabatic cavity is set, and can in adiabatic cavity, passes into high temperature SF as required
6this thermally-stabilised good, toxicological harmless, and to system, thermal losses compensates the high greenhouse gases of heat effect, can fundamentally eliminate thin-film solar cells and produce the temperature fluctuation that causes due to thermal losses of heating phase, possesses higher level of automation, higher capacity usage ratio, lower manufacturing cost simultaneously, can be to environment, can be to advantages such as user's personnel safety work the mischief.
The technical scheme that the present invention solve the technical problem is, design a kind of warm table constant temperature system, it is characterized in that this system comprises two parts: the mechanism part being formed by heat-proof device and the servo plenum system of greenhouse gases, and the electrical means part being formed by electric control system, electric executive system; The servo plenum system of the heat-proof device of mechanism part and greenhouse gases connects as one by gas circuit; Electrical means part is arranged in the electrical element cabinet of heat-proof device, by circuit connect in mechanism by control elements;
Described heat-proof device is that the top of vertical cross-section is that dome bottom is the double-layer cavity body that rectangle constitutes, comprise: thermofin outer wall, thermofin inwall, greenhouse gases inflating cavity and be connected upper junction plate and the lower connecting plate of inside and outside wall, on described upper junction plate and lower connecting plate, all have equally distributed through hole, make the inflating cavity between whole thermofin outer wall and thermofin inwall there is connectedness, and the inwall of thermofin outer wall and thermofin inwall is coated with respectively space heat-insulating porcelain coating;
The servo plenum system of described greenhouse gases comprises: accumulator unit case, breather line, bomb, go out pump reversing valve, off-gas pump, safety valve, enter pump reversing valve and check valve, thermocouple induction switch, stop botton and start button, and high-frequency electrical well heater and sealing-ring, described accumulator unit case is arranged on the outer side wall of thermofin outer wall, in accumulator unit case, be distributed with serial draw-in groove, each draw-in groove in series draw-in groove matches with the element of corresponding greenhouse gases servosystem: breather line stretches out from accumulator unit case, be passed in greenhouse gases inflating cavity by the mating holes on thermofin outer wall, in the mating holes of thermofin outer wall, settle axial sealing ring, described bomb by breather line successively with enter pump reversing valve, off-gas pump, go out pump reversing valve, high-frequency electrical well heater is communicated with, form the main channel of greenhouse gases inflation mechanism, go out the gas return path that pump reversing valve forms by breather line and check valve, be passed in bomb, enter the gas return path that pump reversing valve consists of breather line and safety valve, also be passed in bomb, described stop botton and start button are arranged on the outside surface of thermofin outer wall, thermocouple induction switch arrangement is on the internal surface of thermofin inwall, described stop botton, start button and thermocouple induction switch form the Controlling System of greenhouse gases, are used for to going out pump reversing valve, enter pump reversing valve, the working order of off-gas pump and high-frequency electrical well heater controls,
Described electric control system is made up of trip switch part, relay switch sections and control supplying unit three parts; Comprise temperature coupled switch, normally closed switch and start button; Ventilating control normal open switch, gas-filled switching tube coil, the switch coil of bleeding, the solenoid that goes out pump reversing valve, the solenoid that enters pump reversing valve, circuit control contact coil and coil self-lock switch and control power supply; One end, contact, left side series connection gas-filled switching tube coil of described temperature coupled switch, the other end connects controls power cathode, one end, contact, the right side series connection switch coil of bleeding, the other end connects controls power cathode, and gas-filled switching tube coil and not connected with the temperature coupled switch one end of switch coil of bleeding are connected to control positive source; Ventilating control normal open switch one end connects controls power cathode, the other end connect simultaneously pump reversing valve solenoid one end and enter one end of solenoid of pump reversing valve, by going out the solenoid of pump reversing valve, not connected with the ventilating control normal open switch one end that enters the solenoid of pump reversing valve is connected control positive source; After start button is in parallel with coil self-lock switch, power cathode is controlled in one end series connection, the other end series connection normally closed switch, and one end of the other end series circuit control contact coil of series connection normally closed switch, the other end connects the positive pole of controlling power supply;
Described electric executive system by relay contact switch part, electric actuators part part, carry out power supply and protector four parts form, comprise gas-filled switching tube normally opened contact, the switch normally opened contact of bleeding, circuit control contact and ventilating control normally closed switch; An electric heating element of radio-frequency heater and off-gas pump motor, and AC power and be connected on the fusible link in electric executive system circuit; After described gas-filled switching tube normally opened contact is in parallel with the switch normally opened contact of bleeding, one end connects AC power, the other end series connection fusible link, fusible link is connected with off-gas pump motor and an electric heating element more successively, after ventilating control normally closed switch is in parallel with an electric heating element, one end of series circuit control contact, the other end of circuit control contact connects AC power, forms electric executive system current circuit.
Compared with prior art, the beneficial effect of warm table constant temperature system of the present invention is: utilize this coated material of the adiabatic enamel coating of novel space to substitute original heat insulation weighting material, can be cost-saving, due to the good effect of heat insulation of material, refrigerating unit in original system can be removed, reduce the complicacy of device systems, this coating general thickness only just can meet corresponding heat insulation demand for 6mm, can reduce device volume, reduce the manufacturing cost of equipment.Greenhouse gases thermal compensation system is introduced, and has fundamentally solved the heating system temperature fluctuation problem that system heating device exporting change causes, has improved constant temperature system thermo-efficiency and heating system global reliability.Except this, also to have level of automation high, and energy utilization rate is high, and environmental nonpollution can not bring the advantages such as potential safety hazard to user.
Brief description of the drawings
Fig. 1 is the main TV structure schematic diagram of the entirety of a kind of embodiment of warm table constant temperature system of the present invention.
Fig. 2 is the integral left TV structure schematic diagram of a kind of embodiment of warm table constant temperature system of the present invention.
Fig. 3 is the electric control theory structural representation of a kind of embodiment of warm table constant temperature system of the present invention.
Fig. 4 is the electric execution theory structure schematic diagram of a kind of embodiment of warm table constant temperature system of the present invention.
Fig. 5 is the pneumatic principle structural representation of a kind of embodiment of warm table constant temperature system of the present invention.
Embodiment
Further narrate the present invention below in conjunction with embodiment and accompanying drawing thereof.
Warm table constant temperature system (the abbreviation system of the present invention's design, referring to Fig. 1-5), it is characterized in that this system is made up of two parts, comprise: the mechanism part being formed by heat-proof device 1 and the servo plenum system 2 of greenhouse gases, and the electrical means part being formed by electric control system 3, electric executive system 4.Heat-proof device 1 connects as one by gas circuit with the servo plenum system 2 of greenhouse gases; Electrical means part is arranged in the electrical element cabinet 1.8 of heat-proof device 1 (referring to Fig. 1,2).
The top that described heat-proof device 1 is vertical cross-section is that dome bottom is the double-layer cavity body that rectangle constitutes, and comprising: the heat-insulation chamber wall part being made up of thermofin outer wall 1.1, thermofin inwall 1.4, greenhouse gases inflating cavity 1.6; The adiabatic enamel coating coating layer portion of space being formed by the adiabatic enamel coating external coating (EC) 1.3 of space, the adiabatic enamel coating undercoat 1.5 of space; And the web plate part being formed by inside and outside wall upper junction plate 1.2, inside and outside wall lower connecting plate 1.7.In heat-proof device 1, being also included as electrical element in electric control system 3 and electric executive system 4 provides the electrical element cabinet 1.8 of installing space.
Thermofin outer wall 1.1 is connected by the upper and lower web plate 1.2,1.7 of inside and outside wall with thermofin inwall 1.4, the upper and lower web plate 1.2,1.7 of inside and outside wall is cooperatively interacted and is connected with the board slot on thermofin inwall 1.4 by thermofin outer wall 1.1, realizes the support of thermofin inwall 1.4; Space between thermofin outer wall 1.1 and thermofin inwall 1.4 forms greenhouse gases inflating cavity 1.6; For ensureing the connectedness of greenhouse gases inflating cavity 1.6 entirety, on the upper and lower web plate 1.2,1.7 of inside and outside wall, all have equally distributed through hole, ensure the connectedness of the whole inflating cavity of greenhouse gases between thermofin inside and outside wall.The internal surface of thermofin outer wall 1.1 is smeared space heat-insulating porcelain coating, embodiment smear or coat-thickness is 5mm, form the adiabatic enamel coating external coating (EC) 1.3 of space, smear space heat-insulating porcelain coating at the internal surface of thermofin inwall 1.4, embodiment smear or coat-thickness is 7mm, form the adiabatic enamel coating undercoat of space 1.5(referring to Fig. 1).
Servo plenum system 2 composed components of described greenhouse gases comprise: the greenhouse gases gas path pipe part being made up of accumulator unit case 2.2, breather line 2.4, bomb 2.9; By going out pump reversing valve 2.6, off-gas pump 2.7, safety valve 2.8, enter the air-path control system part that pump reversing valve 2.12 and check valve 2.13 form; The servo controller part being formed by thermocouple induction switch 2.3, stop botton 2.10 and start button 2.11; And realize the high-frequency electrical well heater 2.5 heating, ensure that the sealing-ring 2.1(of breather line 2.4 and heat-proof device 1 connection sealing is referring to Fig. 1,2).
Described accumulator unit case 2.2 is arranged on the outer side of thermofin outer wall 1.1, in accumulator unit case 2.2, be distributed with serial draw-in groove, each draw-in groove in series draw-in groove matches with the element of corresponding greenhouse gases servosystem: bomb 2.9 matches with bomb draw-in groove, enter pump reversing valve 2.12 and enter pump reversing valve draw-in groove and match, off-gas pump 2.7 matches with off-gas pump draw-in groove, go out pump reversing valve 2.6 and match with going out pump reversing valve draw-in groove, high-frequency electrical well heater 2.5 matches with high-frequency electrical heater pocket.Breather line 2.4 stretches out from accumulator unit case 2.2, is passed in greenhouse gases inflating cavity 1.6 by the mating holes on thermofin outer wall 1.1.For ensureing the stopping property of greenhouse gases inflating cavity 1.6, in the mating holes of thermofin outer wall 1.1, settle axial sealing ring 2.1, effectively prevent that the greenhouse gases in greenhouse gases inflating cavity 1.6 from leaking.Bomb 2.9 in described constant temperature system by breather line 2.4 successively with enter pump reversing valve 2.12, off-gas pump 2.7, go out pump reversing valve 2.6, high-frequency electrical well heater 2.5 is communicated with the main channel that forms greenhouse gases inflation mechanism, go out pump reversing valve 2.6 and form gas return path by breather line 2.4 and check valve 2.13 and be passed in bomb 2.9, enter pump reversing valve 2.12 and form gas return path by breather line 2.4 and safety valve 2.8 and be passed in bomb 2.9.Stop botton 2.10, start button 2.11 and thermocouple induction switch 2.3 form the Controlling System of greenhouse gases, are used for to going out pump reversing valve 2.6, enter pump reversing valve 2.12, off-gas pump 2.7, and the working order of high-frequency electrical well heater 2.5 is controlled.Thermocouple induction switch 2.3 is arranged in the working temperature of thermofin inwall 1.3 inner sides measurement warm tables.Stop botton 2.10 and start button 2.11 are arranged on thermofin outer wall 1.1 and facilitate equipment user to operate (referring to Fig. 1,2).
Electric control system 3 in described electrical means part is made up of trip switch part, relay switch sections and control supplying unit three parts.Described trip switch part comprises temperature coupled switch 3.1, normally closed switch 3.9 and normal open switch 3.11; Relay switch sections comprises ventilating control normal open switch 3.3, gas-filled switching tube coil 3.4, the switch coil 3.5 of bleeding, the solenoid 3.6 that goes out pump reversing valve 2.6, the solenoid 3.7 that enters pump reversing valve 2.12, circuit control contact coil 3.8 and coil self-lock switch 3.10; Control supplying unit and comprise control power supply 3.2.Circuit connecting relation in described electric control system 3 is: one end, contact, left side series connection gas-filled switching tube coil 3.4 of temperature coupled switch 3.1, the other end connects controls power supply 3.2 negative poles, one end, contact, the right side series connection switch coil 3.5 of bleeding, the other end connects controls power supply 3.2 negative poles, and gas-filled switching tube coil 3.4 and not connected with temperature coupled switch 3.1 one end of switch coil 3.5 of bleeding are connected to control power supply 3.2 positive poles; Ventilating control normal open switch 3.3 one end connect controls power supply 3.2 negative poles, the other end connect simultaneously pump reversing valve 2.6 solenoid 3.6 one end and enter one end of solenoid 3.7 of pump reversing valve 2.12, by going out the solenoid 3.6 of pump reversing valve 2.6, not connected with ventilating control normal open switch 3.3 one end that enters the solenoid 3.7 of pump reversing valve 2.12 is connected control power supply 3.2 positive poles; After normal open switch 3.11 is in parallel with coil self-lock switch 3.10, connect and control power supply 3.2 negative pole the other end series connection normally closed switch 3.9 in one end, the other end series circuit control contact coil 3.8 of series connection normally closed switch 3.9, one end that circuit control contact coil 3.8 is not connected with normally closed switch 3.9 connects controls power supply 3.2 positive poles (referring to Fig. 3).
Electric executive system 4 in described electrical means part is made up of relay contact switch part, electric actuators part part, execution power supply and protector four parts.Described relay contact switch part comprises gas-filled switching tube normally opened contact 4.1, the switch normally opened contact 4.2 of bleeding, circuit control contact 4.5 and ventilating control normally closed switch 4.7; Electric actuators part part comprises an electric heating element 4.6 and the off-gas pump motor 4.8 of radio-frequency heater 2.5; Carry out power supply and comprise AC power 4.3, protector refers to be connected on the fusible link 4.4 in electric executive system circuit.Circuit connecting relation in described electric executive system 4 is: after gas-filled switching tube normally opened contact 4.1 is in parallel with the switch normally opened contact 4.2 of bleeding, one end connects AC power 4.3, the other end series connection fusible link 4.4, the fusible link 4.4 off-gas pump motor 4.8 of connecting again, off-gas pump motor 4.8 is connected with an electric heating element 4.6, series circuit control contact 4.5 after ventilating control normally closed switch 4.7 is in parallel with an electric heating element 4.6, the other end of circuit control contact 4.5 connects AC power 4.3 and forms electric executive system current circuit (referring to Fig. 4).
The using method of system of the present invention and principle of work process are as follows:
The positive compensation process of heat of 1 high temperature greenhouse gases.
The positive compensation process of heat of the high temperature greenhouse gases of system of the present invention is: user presses start button 2.11, normal open switch 3.11 closures, and circuit control contact coil 3.8 is switched on, the closed formation self-locking of coil self-lock switch 3.10.Electric implementation is (referring to Fig. 4): circuit control contact 4.5 closures, greenhouse gases inflation system enters holding state.Electroheat pair switch 2.3 can detect the temperature of heat-insulation chamber inwall, if temperature value is lower than the set(ting)value of system, need to be filled with hot greenhouse gases and carry out heat compensation, temperature coupled switch 3.1 left side closures, right side disconnects, gas-filled switching tube coil 3.4 is switched on, and the closed off-gas pump motor 4.8 of gas-filled switching tube normally opened contact 4.1 is connected, and off-gas pump 2.7 is started working.Ventilating control normally closed switch 4.7 disconnects, an electric heating element 4.6 energisings the normal work of radio-frequency heater 2.5.Ventilating control normal open switch 3.3 closures, go out the solenoid 3.6 of pump reversing valve 2.6, the solenoid 3.7 that enters pump reversing valve 2.12 is switched on, and spool moves.The pneumatic principle process of the high temperature greenhouse gases of system of the present invention is (referring to Fig. 5): under the effect of off-gas pump 2.7, and greenhouse gases (SF
6) from bomb 2.9, through entering pump reversing valve 2.12, through going out pump reversing valve 2.6 and high-frequency electrical well heater 2.5 heats, be passed in inflating cavity 1.6 successively.Along with high temperature greenhouse gases (SF
6) pass into, heat constantly supplements and can make in thermofin inner chamber temperature raise, until go back up to normal working temperature.As the high temperature greenhouse gases (SF in inflating cavity 1.6
6) pressure reach after the setting atmospheric pressure value of safety valve 2.8, the high temperature greenhouse gases (SF in inflating cavity 1.6
6) can overflow and be back in bomb 2.9 by safety valve 2.8, but high temperature greenhouse gases (SF
6) gas replenishment process still can be realized thermal compensation, until the temperature recovery in inflating cavity 1.6 is to normal.
For ensureing the safety of whole gas replenishment process, safety valve 2.8 is set in gas circuit, but in air cavity, pressure reaches excessive SF after preset value
6gas can flow back in bomb 2.9 after safety valve 2.8.Except this, whole system arranges stop botton 2.10, presses after stop botton 2.10; normally closed switch 3.9 disconnects, 3.8 power-off of circuit control contact coil, and coil self-lock switch 3.10 and circuit control contact 4.5 disconnect; off-gas pump motor 4.8 disconnects, and off-gas pump 2.7 quits work.An electric heating element 4.6 power-off of high-frequency electrical well heater 2.5, and quit work.For preventing causing danger after the loop short circuit of electric executive system, in electric executive system loop, be in series with fusible link 4.4.
The heat of 2 high temperature greenhouse gases is against compensation process.
It is (referring to Fig. 3) that the heat of high temperature greenhouse gases is realized process against the electrical control of compensation process: if temperature value is higher than the set(ting)value of electroheat pair switch 2.3, the heat that need to carry out high temperature greenhouse gases is against compensation process, temperature coupled switch 3.1 left sides disconnect, right side closure, gas-filled switching tube coil 3.4 power-off, the switch coil 3.5 of bleeding is switched on.The heat of system of the present invention against the electric implementation (referring to Fig. 4) of compensation process is: gas-filled switching tube normally opened contact 4.1 disconnects, switch normally opened contact 4.2 closures of bleeding, and off-gas pump motor 4.8 is connected, and off-gas pump 2.7 is started working.Ventilating control normally closed switch 3.10 closures, an electric heating element 4.6 of high-frequency electrical well heater 2.5 is quit work by short circuit.Ventilating control normal open switch 3.3 disconnects, and goes out pump reversing valve 2.6 solenoids 3.6, enters 2.12 solenoid 3.7 power-off of pump reversing valve, valve core reset.The heat of system of the present invention against the pneumatic principle process (referring to Fig. 5) of compensation process is: under the effect of off-gas pump 2.7, and greenhouse gases (SF
6) from inflating cavity 1.6, through entering pump reversing valve 2.12, going out pump reversing valve 2.6 and check valve 2.13, be passed in bomb 2.9 successively.Along with the high temperature greenhouse gases (SF in inflating cavity 1.6
6) the minimizing of concentration, in air cavity, heat constantly reduces, and along with system is to the dissipation of heat in environment, can make cavity temperature in thermofin reduce, until be down to normal working temperature.
Constant temperature system of the present invention is by heat-blocking action and the high temperature greenhouse gases (SF of the adiabatic enamel coating of two-layer space
6) the forward and inverse compensation process of heat realize its beneficial effect.
The present invention does not address part and is applicable to prior art.
Claims (2)
1. a warm table constant temperature system, is characterized in that this system comprises two parts: the mechanism part being made up of heat-proof device and the servo plenum system of greenhouse gases, and the electrical means part being made up of electric control system, electric executive system; The servo plenum system of the heat-proof device of mechanism part and greenhouse gases connects as one by gas circuit; Electrical means part is arranged in the electrical element cabinet of mechanism part, by circuit connect in mechanism by control elements;
Described heat-proof device is that the top of vertical cross-section is that dome bottom is the double-layer cavity body that rectangle constitutes, comprise: thermofin outer wall, thermofin inwall, greenhouse gases inflating cavity and be connected upper junction plate and the lower connecting plate of inside and outside wall, on described upper junction plate and lower connecting plate, all have equally distributed through hole, make the inflating cavity between whole thermofin outer wall and thermofin inwall there is connectedness, and the inwall of thermofin outer wall and thermofin inwall is coated with respectively space heat-insulating porcelain coating;
The servo plenum system of described greenhouse gases comprises: accumulator unit case, breather line, bomb, go out pump reversing valve, off-gas pump, safety valve, enter pump reversing valve and check valve, thermocouple induction switch, stop botton and start button, and high-frequency electrical well heater and sealing-ring, described accumulator unit case is arranged on the outer side wall of thermofin outer wall, in accumulator unit case, be distributed with serial draw-in groove, each draw-in groove in series draw-in groove matches with the element of corresponding greenhouse gases servosystem: breather line stretches out from accumulator unit case, be passed in greenhouse gases inflating cavity by the mating holes on thermofin outer wall, in the mating holes of thermofin outer wall, settle axial sealing ring, described bomb by breather line successively with enter pump reversing valve, off-gas pump, go out pump reversing valve, high-frequency electrical well heater is communicated with, form the main channel of greenhouse gases inflation mechanism, go out the gas return path that pump reversing valve forms by breather line and check valve, be passed in bomb, enter the gas return path that pump reversing valve consists of breather line and safety valve, also be passed in bomb, described stop botton and start button are arranged on the outside surface of thermofin outer wall, thermocouple induction switch arrangement is on the internal surface of thermofin inwall, described stop botton, start button and thermocouple induction switch form the Controlling System of greenhouse gases, are used for to going out pump reversing valve, enter pump reversing valve, the working order of off-gas pump and high-frequency electrical well heater controls,
Described electric control system is made up of trip switch part, relay switch sections and control supplying unit three parts; Comprise temperature coupled switch, normally closed switch and start button; Ventilating control normal open switch, gas-filled switching tube coil, the switch coil of bleeding, the solenoid that goes out pump reversing valve, the solenoid that enters pump reversing valve, circuit control contact coil and coil self-lock switch and control power supply; One end, contact, left side series connection gas-filled switching tube coil of described temperature coupled switch, the other end connects controls power cathode, one end, contact, the right side series connection switch coil of bleeding, the other end connects controls power cathode, and gas-filled switching tube coil and not connected with the temperature coupled switch one end of switch coil of bleeding are connected to control positive source; Ventilating control normal open switch one end connects controls power cathode, the other end connect simultaneously pump reversing valve solenoid one end and enter one end of solenoid of pump reversing valve, by going out the solenoid of pump reversing valve, not connected with the ventilating control normal open switch one end that enters the solenoid of pump reversing valve is connected control positive source; After start button is in parallel with coil self-lock switch, power cathode is controlled in one end series connection, the other end series connection normally closed switch, and one end of the other end series circuit control contact coil of series connection normally closed switch, the other end connects the positive pole of controlling power supply;
Described electric executive system by relay contact switch part, electric actuators part part, carry out power supply and protector four parts form, comprise gas-filled switching tube normally opened contact, the switch normally opened contact of bleeding, circuit control contact and ventilating control normally closed switch; An electric heating element of radio-frequency heater and off-gas pump motor, and AC power and be connected on the fusible link in electric executive system circuit; After described gas-filled switching tube normally opened contact is in parallel with the switch normally opened contact of bleeding, one end connects AC power, the other end series connection fusible link, fusible link is connected with off-gas pump motor and an electric heating element more successively, after ventilating control normally closed switch is in parallel with an electric heating element, one end of series circuit control contact, the other end of circuit control contact connects AC power, forms electric executive system current circuit.
2. warm table constant temperature system according to claim 1, is characterized in that the coat-thickness of the adiabatic enamel coating of space of described thermofin outer wall internal surface is 5mm, is 7mm at the coat-thickness of the adiabatic enamel coating of space of thermofin inwall internal surface.
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| CN201210583178.4A CN103060776B (en) | 2012-12-27 | 2012-12-27 | A constant temperature system for a heating stage |
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| CN201210583178.4A CN103060776B (en) | 2012-12-27 | 2012-12-27 | A constant temperature system for a heating stage |
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| US20040079793A1 (en) * | 2002-10-23 | 2004-04-29 | Mayer William N. | Container having passive controlled temperature interior, and method of construction |
| CN1683897A (en) * | 2004-04-13 | 2005-10-19 | 李树华 | Energy saving type test electric stove |
| EP2085317B1 (en) * | 2008-01-30 | 2012-02-01 | Schoeller Arca Systems GmbH | Thermal container with thermal insulation of goods for transport and storage |
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| CN103060776A (en) | 2013-04-24 |
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