CN113953162B - Double closed-loop cross temperature control method for curing barn - Google Patents
Double closed-loop cross temperature control method for curing barn Download PDFInfo
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- CN113953162B CN113953162B CN202111413569.7A CN202111413569A CN113953162B CN 113953162 B CN113953162 B CN 113953162B CN 202111413569 A CN202111413569 A CN 202111413569A CN 113953162 B CN113953162 B CN 113953162B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0254—After-treatment
Abstract
The invention relates to a double closed-loop cross temperature control method for a curing barn, which mainly solves the problem of poor product drying effect caused by large heating temperature distribution difference of the curing barn in the prior art. The system comprises a curing barn body, a controller, a total heat type fresh air ventilator, a plurality of suspension assemblies, a plurality of first temperature sensors, a second temperature sensor, a humidity sensor, an air flow sensor, a ventilator circuit breaker, a ventilator switch, a plurality of heating circuit breakers, a heater switch, be equipped with air intake and air outlet on the curing barn body, the various steel sheet of rock wool has been laid on the wall of the curing barn body and roof surface, all be equipped with the far infrared electric heat membrane on each rock wool color steel sheet, each suspension assembly locates each far infrared electric heat membrane department respectively, hang single thing of treating that dries through each suspension assembly and hang in the front side of electric heat membrane far infrared, each first temperature sensor locates each far infrared heating membrane's week side respectively, a surface temperature for the thing of treating that the monitoring hangs on the suspension assembly dries.
Description
Technical Field
The invention relates to a double closed-loop cross temperature control method for a curing barn.
Background
The applicant filed a patent application number of 28/09/2021 as follows: 202122359284.1, the patent name is a novel baking room patent, which discloses that the effect of heat preservation is achieved by arranging rock wool color steel plates on the wall and the top plate of the baking room, and the far infrared electric heating film is controlled to work when in use, and because the far infrared electric heating film emits far infrared rays when in heating, the object to be dried can be dried through the rapid deep layer from inside to outside, and in the experimental process, the drying effect of paint (the object to be dried) can be improved to a certain extent.
But in the in-service use, because far infrared electric heat membrane locates on the wall and the roof of the roast room body, in far infrared electric heat membrane circular telegram transmission far infrared carries out the heating to paint (waiting to dry the thing), paint (waiting to dry the thing) attached on the wall, the far infrared among the air transmission is absorbed to its inboard face priority for the medial surface temperature of paint (waiting to dry the thing) often is higher than the lateral surface temperature, be unfavorable for the homogeneity distribution of control roast room interior temperature, realize the even stoving effect of paint (waiting to dry the thing) from this.
Therefore, how to realize the temperature uniformity distribution in the baking room to improve the high-quality drying of the paint (the object to be dried) becomes the research subject of the present application.
Disclosure of Invention
Aiming at the problems, the invention provides a double-closed-loop cross temperature control method for a curing barn, which mainly solves the problem that the curing barn in the prior art has poor drying effect due to large heating temperature distribution difference.
In order to achieve the purpose, the invention adopts the following technical scheme:
a double-closed-loop cross temperature control method of a curing barn applies a double-closed-loop cross temperature control system, the double-closed-loop cross temperature control system comprises a curing barn body, a controller, a full-heat fresh air ventilator, a plurality of suspension assemblies, a plurality of first temperature sensors, a second temperature sensor, a humidity sensor, an air flow sensor, a ventilator circuit breaker, a ventilator switch, a plurality of heating circuit breakers and a heater switch, an air inlet and an air outlet are arranged on the curing barn body, rock wool color steel plates are paved on the surfaces of the wall and the top plate of the curing barn body, far infrared electric heating films are arranged on the rock wool color steel plates, each suspension assembly is respectively arranged at each far infrared position, a single object to be dried is suspended on the front side of each far infrared electric heating film through each suspension electric heating film assembly, each first temperature sensor is respectively arranged on the peripheral side of each heating film, the drying room is characterized by comprising a hanging component, a second temperature sensor, a humidity sensor, a full-heat type fresh air ventilator, an air flow sensor and an air flow sensor, wherein the second temperature sensor is used for monitoring the surface temperature of an object to be dried hung on the hanging component, the second temperature sensor is arranged in the middle of the body of the drying room, the humidity sensor is uniformly distributed on the side wall of the body of the drying room, the full-heat type fresh air ventilator is provided with a waste gas inlet and a fresh air outlet, the waste gas inlet is communicated with the air outlet, the fresh air outlet is connected with an air inlet, air flow replacement in the body of the drying room is realized through the operation of the full-heat type fresh air ventilator, and the air flow sensor is arranged at the air inlet;
operation mode of the curing barn temperature control system:
(1) setting a target temperature value A for heating in a curing barn body;
(2) monitoring temperature values R1, R2 and R3 … Rn in real time through the first temperature sensors, monitoring temperature value R0 in real time through the second temperature sensors, monitoring humidity value C in real time through the humidity sensors, monitoring air flow value D in real time through the air flow sensors, and transmitting the real-time monitoring temperature values of the first temperature sensors, the real-time monitoring temperature values of the second temperature sensors, the real-time monitoring humidity value of the humidity sensors and the real-time monitoring air flow value of the air flow sensors to the controller;
(3) processing the transmission data in the step (2) by the controller, and using a formula K1= ((R1 + R2+ R3+ … + Rn)/n)/R0, K2=
(R1-R0) by Caesalpinia japonica (R2-R0) by Caesalpinia japonica (R3-R0) by Caesalpinia indica + … + (Rn-R0)/n), calculating numerical values of K1 and K2; processing the transmission data in the step (2) by the controller, and calculating the numerical values of K3 and K4 by the formulas K3= C/(K1/100), K4= D/| K2 |;
(4) judging the values of K1 and K2 obtained in the step (3) through a controller, when R0 is less than A, and judging that K1= [1,1.2], when K1=1, continuously heating through a far infrared electrothermal film, when K1=1.2, stopping heating, and simultaneously judging that K2= [ -1,1], when K2 is in an [ -1,0] interval or a [0,1] interval, lifting airflow in the baking room body through the work of a total-heat type fresh air ventilator, so that the value of K2 tends to 0, and when K2=0, stopping the work of the total-heat type fresh air ventilator, and realizing double closed-loop control;
and judging K3= [23,36], when K3=36, controlling the full-heat type fresh air ventilator to work, so that the water vapor content in the air of the baking room body is reduced, when K3=23, the full-heat type fresh air ventilator in the control area stops working, judging K4= [42,53], when K4=53, the far infrared electric heating film works, and when K4=42, the far infrared electric heating film stops working;
(5) when R0= A and K2=0, the far infrared electrothermal film and the total-heat fresh air ventilator stop working, so that the temperature in the baking room remains unchanged, and the control mode of the step (3) is repeated after the continuous working until the objects to be dried are dried.
Furthermore, an air sensor for detecting volatile organic solvents is arranged in the curing barn.
Furthermore, a maximum value E and a minimum value F of the content of the volatile organic solvent in the baking room are preset, when B is larger than E, the total-heat type fresh air ventilator works to purify the space in the baking room to remove the volatile organic solvent, so that the control modes of the step (4) and the step (5) are repeated along with the change of the temperature and the humidity in the baking room, and when B is smaller than F, the total-heat type fresh air ventilator stops working.
Further, roast external heating start button, heating stop button, the start button of taking a breath, the stop button of taking a breath, display screen, power indicator, heating work pilot lamp, the work pilot lamp of taking a breath and keyboard of being equipped with in room.
By adopting the technical scheme, the invention has the beneficial effects that: this roast room double-closed-loop cross temperature control method, mode through cross control, make the single closed-loop control mode by far infrared electrothermal film and the single closed-loop control mode of full fever type fresh air ventilator form cross connection, and then keep roast room internal each to treat that the thing is located regional temperature equilibrium, and realize the heating process that steadily rises, make to treat that the thing is dried through interior and outer quick deep layer, and simultaneously, in the surface of treating the thing of drying and the contact of high temperature air, realize the stoving solidification on top layer, make the stoving effect promote by a wide margin.
Drawings
FIG. 1 is a schematic perspective view of an embodiment of the present invention;
FIG. 2 is a flow chart of the control method of the temperature control system according to the embodiment of the present invention;
FIG. 3 is a circuit block diagram of an embodiment of the present invention;
fig. 4 is a schematic structural view of a suspension assembly in an embodiment of the invention.
Detailed Description
The invention will now be further described with reference to the accompanying drawings and detailed description.
The embodiment of the invention is as follows:
referring to fig. 1 to 4, a double closed-loop cross temperature control method for a curing barn applies a double closed-loop cross temperature control system, the double closed-loop cross temperature control system includes a curing barn body 1, a controller 2, a total heat type fresh air ventilator 3, a plurality of suspension assemblies 4, a plurality of first temperature sensors 5, a plurality of second temperature sensors 6, a humidity sensor 7, an air flow sensor 8, a ventilator circuit breaker 9, a ventilator switch 10, a plurality of heating circuit breakers 11, and a heater switch 12, an air inlet 101 and an air outlet 102 are arranged on the curing barn body 1, rock wool color steel plates 13 are laid on the surfaces of the wall and the top plate of the curing barn body 1, far infrared electric heating films 14 are arranged on the rock wool color steel plates 13, the suspension assemblies 4 are respectively arranged at the far infrared electric heating films 14, a single object to be dried is suspended on the front sides of the far infrared electric heating films 14 by the suspension assemblies 4, the thing of treating of its front side is dried after the circular telegram of far infrared electrothermal film 14, each first temperature sensor 5 locates each far infrared heating film 14 week side respectively for the surface temperature of the thing of treating of monitoring suspension on hanging subassembly 4, the middle part of roast room body 1 is located to second temperature sensor 6, humidity transducer 7 equipartition is on the lateral wall of roast room body 1, full fever type fresh air ventilator 3 has waste gas air inlet and new trend gas outlet, waste gas air inlet and air outlet 102 intercommunication, the new trend gas outlet is connected with air intake 101, and the air that realizes in the roast room body 1 flows through the operation of full fever type fresh air ventilator 3 and changes, air mass flow sensor 8 locates air intake 101 department.
The operation mode of the double closed-loop temperature control system of the curing barn is as follows:
(1) setting a target temperature value A for heating in the curing barn body 1;
(2) monitoring temperature values R1, R2 and R3 … Rn in real time through the first temperature sensors 5, monitoring temperature value R0 in real time through the second temperature sensor 6, monitoring humidity value C in real time through the humidity sensor 7, monitoring air flow value D in real time through the air flow sensor 8, and transmitting the real-time monitoring temperature values of the first temperature sensors 5, the real-time monitoring temperature values of the second temperature sensors 6, the real-time monitoring humidity value of the humidity sensor 7 and the real-time monitoring air flow value of the air flow sensor 8 to the controller;
(3) processing the transmission data in the step (2) by the controller, and using a formula K1= ((R1 + R2+ R3+ … + Rn)/n)/R0, K2=
(R1-R0) by (R2-R0) by (R3-R0) by + … + (Rn-R0) by/n) by (R3-R0) by (K3 = C/(K1/100) by K4= D/| K2| calculating the values of K1, K2, K3, K4;
(4) judging the values of K1, K2, K3 and K4 obtained in the step (3) by the controller 2, when R0 is less than A and K1= [1,1.2] is judged, controlling the heater switch 12 to start the operation of the far infrared electric heating film 14, so that the far infrared electric heating film 14 generates far infrared rays to dry the object to be dried, further the surface temperature of the object to be dried is gradually increased, but the surface of each object to be dried forms temperature difference due to the temperature nonuniformity in the baking room body 1, detecting that the temperature R0 of the second temperature sensor 6 in the middle of the baking room body 1 is smaller than the temperature detected by each first temperature sensor 5, when K1=1, continuously heating by the far infrared electric heating film 14, when K1=1.2, stopping heating, simultaneously judging that K2= -1,1], controlling the ventilator switch 10 to start the operation of the total heat type fresh air ventilator 3, the method comprises the steps that gas in a baking room body 1 is ventilated, the gas in the baking room body 1 is enabled to flow, the temperature of each area in the baking room body 1 tends to be the same, when K2 is located in an area between the < -1,0 > or an area between the < -0, 1 >, the airflow flowing in the baking room body 1 is improved through the work of a full-heat type fresh air ventilator 3, the numerical value of K2 tends to 0, when K2=0, the full-heat type fresh air ventilator 3 stops working, double closed-loop control is achieved, the temperature in the baking room body 1 is stably increased, the temperature uniformity of each object to be dried is kept, the object to be dried is dried through a deep layer from inside to outside quickly, meanwhile, the surface layer is dried and solidified in the contact of the surface of the object to be dried and high-temperature air, and the drying effect is greatly improved;
and judging that K3= [23,36], in the drying process of the object to be dried by heating with far infrared electrothermal film, along with the volatilization of moisture, the water vapor filled in the air is brought out of the baking room body 1 by the work of the total heat type fresh air ventilator 3, so as to facilitate the drying of the baking room body 1, when K3=36, the work of the total heat type fresh air ventilator 3 is controlled, so that the water vapor content in the air of the baking room body 1 is reduced, when K3=23, the control area total heat type fresh air ventilator stops working, and at the same time, judging that K4= [42,53], the work of the total heat type fresh air ventilator 3 is in the process of realizing the temperature of each area in the baking room body 1 in the uniform process, along with the loss of heat, and the difference between the air outlet 101 and the air inlet 102 of the baking room body 1 is relatively large, when K4=53, because the flow rate of the total heat type fresh air ventilator 3 is kept unchanged, the far infrared electrothermal film 14 works, so that the numerical value of K2 is gradually increased, the numerical value of K4 tends to be reduced, when K4=42, the far infrared electrothermal film 14 stops working, and in a cross control mode, a single closed-loop control mode of the far infrared electrothermal film 14 and a single closed-loop control mode of the total-heat fresh air ventilator 3 form cross connection, so that the temperature areas of the areas where the objects to be dried are located in the baking room body 1 are balanced, a stably-rising heating process is realized, the objects to be dried are quickly and deeply dried from inside to outside, meanwhile, in the contact of the surfaces of the objects to be dried and high-temperature air, the surface layer is dried and solidified, and the drying effect is greatly improved;
(5) when R0= A and K2=0, the far infrared electrothermal film 14 and the full-heat type fresh air ventilator 3 stop working, so that the temperature in the baking room body 1 is kept unchanged, the drying treatment is continuously carried out on the objects to be dried, however, the continuous moisture of the objects to be dried is volatilized in the drying process, and then the control mode of the step (3) is repeated until the objects to be dried are dried.
It should be noted that, in the drying process, in addition to the volatile moisture, the object to be dried, such as a painted product, also volatilizes volatile organic solvent gases (VOCs), particularly benzene-based gases, more specifically toluene and xylene, in this embodiment, an air sensor 15 for detecting volatile organic solvents, preferably benzene-based organic solvent sensor, is disposed in the flue-curing barn body 1 for monitoring the content B of volatile organic solvents in the flue-curing barn body 1 in real time, and in the working procedure, the maximum value E and the minimum value F of the content of volatile organic solvents in the flue-curing barn body 1 are preset, where E =0.087mg/m 3; f =0.062 mg/m3, when B > E, the total-heat type fresh air ventilator 3 works to purify the space in the baking room body 1 to remove the volatile organic solvent, thereby the control mode of the step (4) and the step (5) is repeated along with the change of the temperature and the humidity in the baking room body 1, and when B < F, the total-heat type fresh air ventilator stops working.
The air sensor 15 for detecting the volatile organic solvent arranged in the curing barn body 1 can monitor the concentration of the organic solvent volatilized from the paint on the surface of the object to be dried in real time and adjust the air inlet and outlet amount in time.
The structure and function of the rock wool color steel plate 13 and the far infrared electric heating film 14 are all in the Chinese patent application number: 202122359284.1 will not be redundantly described here.
In this embodiment, still be equipped with heating start button 16, heating stop button 17, start button 18 takes a breath, stop button 19 takes a breath, display screen 20, power indicator 21, heating work pilot lamp 22, work pilot lamp 23 and keyboard 24 take a breath, make the staff can directly perceivedly acquire the temperature in the roast room body 1, humidity, volatile organic solvent content numerical value, and K1, K2, K3, K4's numerical value changes, realize dual judgement through manual control's mode, improve the reliability of equipment.
Moreover, the hanging assembly 4 comprises an installation seat 41 arranged on the upper side of the far infrared heating film 14, a supporting frame 42 arranged on the installation seat 41, an electric push rod 43, an airing frame 44 arranged on the free end of the supporting frame 42, and a clamping piece 45 arranged on the airing frame 44 and used for clamping the object to be dried, the free end of the electric push rod 43 is connected with the airing frame 44, the object to be dried is aired on the airing frame 44 through the clamping piece 45, the airing frame 44 is driven to move through the electric push rod 43, and then the distance between the object to be dried and the far infrared heating film 14 is adjusted, when in use, due to the difference of the colors of oil gas sprayed on the object to be dried or the difference of the heating power of the far infrared heating film 14, the heating of part of the object to be dried is not uniform, in the monitoring temperature value through the first temperature sensor 5, the controller 2 judges that the monitoring temperature of one of the first temperature sensors 5 is too high or too low, the controller 2 controls the electric push rod 43 to drive the object to be dried on the airing rack 44 to move, the distance between the electric push rod and the far infrared heating film 14 is adjusted, and the temperature balance of the upper surface of the object to be dried is realized.
Further, the airing rack 44 includes a left cross bar 441 and a right cross bar 442 with one end hinged to the support frame 42, an arc guide sleeve 443 is disposed at one end of the left cross bar 441 close to the right cross bar 442, an arc guide rod 444 matched with the arc guide sleeve 443 is disposed on the right cross bar 442, a spring 448 is sleeved on the arc guide rod 444, a first arc connecting portion 445 and a second arc connecting portion 446 are disposed at ends of the left cross bar 441 and the right cross bar 442 away from each other, the first arc connecting portion 445 and the second arc connecting portion 446 are both elastic, the second arc connecting portion 446 is disposed at one side of the first arc connecting portion 445 away from the left cross bar 441 or the right cross bar 442, a curvature radius of the first arc connecting portion 445 is smaller than a curvature radius of the second arc connecting portion 446, a vertical rod 447 is disposed at a free end of each of the first arc connecting portion 445, the clamping member 45 is a clip sold in the market, the clamping members 45 are arranged on the left cross bar 441, the right cross bar 442 and the vertical bar 447, when in use, the objects to be dried clamped on the airing rack 44 can be unfolded and flattened through the airing rack 44 by arranging the first arc-shaped connecting portion 445 and the second arc-shaped connecting portion 446, the stress is uniform, wrinkles are avoided, and the drying of the objects to be dried is facilitated, specifically, the objects to be dried are clamped around the objects to be dried through the clamping members 45 on the left cross bar 441, the right cross bar 442 and the two vertical bars 447, and the left cross bar 441 and the right cross bar 442 are unfolded through the springs 448, so as to drive the vertical bars 447 to swing outwards, when the vertical bars 447 are forced to swing outwards, the upper ends of the vertical bars are restricted by the first arc-shaped connecting portion 445 and the second arc-shaped connecting portion 446, because the second arc-shaped connecting portion 446 is arranged on the first arc-shaped connecting portion 445 and is far away from one side of the left cross bar 441 or the right cross bar 442, and the curvature radius of the first arc-shaped connecting portion 445 is smaller than that of the second arc-shaped connecting portion 446, the upper end of the vertical rod 447 is retracted inwards, a downward thrust is borne at the moment, the object to be dried is driven to be pulled downwards, meanwhile, the horizontal tension of the two horizontal sides of the object to be dried is improved by the vertical rod 447, the object to be dried is kept in a flattening state, and the stress is uniform.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (4)
1. A double closed-loop cross temperature control method for a curing barn is characterized by comprising the following steps: the double closed-loop cross temperature control system is applied and comprises a curing barn body, a controller, a full-heat fresh air ventilator, a plurality of suspension assemblies, a plurality of first temperature sensors, a plurality of second temperature sensors, a humidity sensor, an air flow sensor, a ventilator circuit breaker, a ventilator switch, a plurality of heating circuit breakers and a heater switch, wherein the curing barn body is provided with an air inlet and an air outlet, the surfaces of the wall and the top plate of the curing barn body are paved with rock wool color steel plates, each rock wool color steel plate is provided with a far infrared electric heating film, each suspension assembly is respectively arranged at each far infrared electric heating film, a single object to be dried is suspended by each suspension assembly, the object to be dried is suspended at the front side of the far infrared electric heating film, each first temperature sensor is respectively arranged at the peripheral side of each far infrared heating film and is used for monitoring the surface temperature of the object to be dried which is suspended on the suspension assembly, the second temperature sensor is arranged in the middle of the baking room body, the humidity sensors are uniformly distributed on the side wall of the baking room body, the full-heat type fresh air ventilator is provided with a waste gas inlet and a fresh air outlet, the waste gas inlet is communicated with the air outlet, the fresh air outlet is connected with the air inlet, the air flow replacement in the baking room body is realized through the operation of the full-heat type fresh air ventilator, and the air flow sensor is arranged at the air inlet;
operation mode of the curing barn temperature control system:
(1) setting a target temperature value A for heating in a curing barn body;
(2) monitoring temperature values R1, R2 and R3 … Rn in real time through the first temperature sensors, monitoring temperature value R0 in real time through the second temperature sensors, monitoring humidity value C in real time through the humidity sensors, monitoring air flow value D in real time through the air flow sensors, and transmitting the real-time monitoring temperature values of the first temperature sensors, the real-time monitoring temperature values of the second temperature sensors, the real-time monitoring humidity value of the humidity sensors and the real-time monitoring air flow value of the air flow sensors to the controller;
(3) processing the transmission data in the step (2) by the controller, and using a formula K1= ((R1 + R2+ R3+ … + Rn)/n)/R0, K2=
(R1-R0) by Caesalpinia japonica (R2-R0) by Caesalpinia japonica (R3-R0) by Caesalpinia indica + … + (Rn-R0)/n), calculating numerical values of K1 and K2; processing the transmission data in the step (2) by the controller, and calculating the numerical values of K3 and K4 by the formulas K3= C/(K1/100), K4= D/| K2 |;
(4) judging the values of K1 and K2 obtained in the step (3) through a controller, when R0 is less than A, and judging that K1= [1,1.2], when K1=1, continuously heating through a far infrared electrothermal film, when K1=1.2, stopping heating, and simultaneously judging that K2= [ -1,1], when K2 is in an [ -1,0] interval or a [0,1] interval, lifting airflow in the baking room body through the work of a total-heat type fresh air ventilator, so that the value of K2 tends to 0, and when K2=0, stopping the work of the total-heat type fresh air ventilator, and realizing double closed-loop control;
and judging K3= [23,36], when K3=36, controlling the full-heat type fresh air ventilator to work, so that the water vapor content in the air of the baking room body is reduced, when K3=23, the full-heat type fresh air ventilator in the control area stops working, judging K4= [42,53], when K4=53, the far infrared electric heating film works, and when K4=42, the far infrared electric heating film stops working;
(5) when R0= A and K2=0, the far infrared electrothermal film and the total-heat fresh air ventilator stop working, so that the temperature in the baking room remains unchanged, and the control mode of the step (3) is repeated after the continuous working until the objects to be dried are dried.
2. The baking room double-closed-loop cross temperature control method according to claim 1, characterized in that: an air sensor for detecting volatile organic solvents is arranged in the curing barn.
3. The curing barn double-closed-loop cross temperature control method according to claim 2, wherein the method comprises the following steps: presetting a maximum value E and a minimum value F of the content of the volatile organic solvent in the baking room, when B is larger than E, operating the total-heat type fresh air ventilator, purifying the space in the baking room to remove the volatile organic solvent, repeating the control mode of the step (4) and the step (5) along with the change of the temperature and the humidity in the baking room, and when B is smaller than F, stopping operating the total-heat type fresh air ventilator.
4. The baking room double-closed-loop cross temperature control method according to claim 1, characterized in that: the external heating start button, heating stop button, the start button of taking a breath, the stop button of taking a breath, display screen, power indicator, heating work pilot lamp, the work pilot lamp and the keyboard of taking a breath of being equipped with of roast room.
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| CN208653084U (en) * | 2018-06-13 | 2019-03-26 | 宁夏金彤枸杞生物制品有限公司 | A kind of low power consuming drying chamber |
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| WO2017214129A1 (en) * | 2016-06-06 | 2017-12-14 | Alto-Shaam, Inc. | Food service oven with multipoint temperature monitoring |
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|---|---|---|---|---|
| JP2016200289A (en) * | 2015-04-07 | 2016-12-01 | 富士電機株式会社 | Coating drying device and coating drying method |
| CN107224002A (en) * | 2017-07-03 | 2017-10-03 | 贵州大学 | A kind of method that utilization converter technique improves baking quality of tobacco |
| CN208653084U (en) * | 2018-06-13 | 2019-03-26 | 宁夏金彤枸杞生物制品有限公司 | A kind of low power consuming drying chamber |
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