A temperature control system

Abstract

The invention relates to a baking room temperature control technology, and is used to solve the problem that when the heating elements of the core components of the baking room cannot work normally, the user cannot make a reasonable handling method according to the situation, which affects the processing efficiency and suffers economic losses. Specifically, it is a temperature control system, including a temperature increase control module, a temperature decrease control module, an emergency processing module and a record tracking module; the invention detects the heating elements of the baking room temperature control core through the emergency processing module, and when some heating elements cannot work normally, the number of heating elements is counted, and then the cost-effectiveness of two handling methods, namely, continuing to use the remaining heating elements and immediately replacing them, is judged according to the number of heating element losses, so that the user can make a more wise decision according to the cost-effectiveness, ensure the rationality and economy of the investment, and after determining to continue to use the remaining heating elements, it is judged whether the remaining heating elements can maintain the temperature stability in the baking room, so as to prevent affecting the processing operation of the products inside the baking room and causing economic losses to the user.

Description

Technical Field

[0001] The invention relates to a baking room temperature control technology, in particular to a temperature control system. Background Art

[0002] A drying room is an enclosed space used for heating and drying, equipped with a heating system and usually includes temperature control equipment, used to heat items in a controlled environment, widely used in industrial and agricultural fields for baking, drying, curing or heat treatment of various products;

[0003] In the prior art, when the heating element, the core component of the baking room, fails to work properly, the user cannot make a reasonable treatment method on site. The hesitation in judging the treatment method is likely to reduce the processing efficiency, and the wrong choice of treatment method is likely to cause economic losses.

[0004] In view of the above technical problems, this application proposes a solution. Summary of the invention

[0005] The purpose of the present invention is to detect the heating elements of the temperature control core of the baking room through the emergency processing module. When some heating elements cannot work normally, the number of heating elements is counted, and then the cost-effectiveness of the two processing methods of continuing to use the remaining heating elements and immediately replacing them is judged according to the number of heating element losses, so that users can make more informed decisions based on the cost-effectiveness to ensure the rationality and economy of the investment. After determining to continue using them, it is judged whether the remaining heating elements can maintain the stability of the temperature in the baking room to prevent affecting the processing operation of the products inside the baking room and causing economic losses to the users. The temperature control system is proposed to solve the problem that when the heating elements of the core components of the baking room cannot work normally, the users cannot make reasonable processing methods according to the situation, affecting the processing efficiency and suffering economic losses.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A temperature control system, comprising a temperature increase control module, a temperature decrease control module, an emergency processing module and a record tracking module;

[0008] The temperature rise control module detects the temperature change in the baking room and determines whether the temperature change is abnormal. If it is abnormal, it generates a temperature drop signal and transmits the signal to the temperature drop control module.

[0009] The temperature reduction control module receives the temperature reduction signal transmitted by the temperature increase control module, and then performs a temperature reduction operation in the baking room;

[0010] The emergency processing module monitors the working status of the heating elements. If it is determined that a heating element cannot work, the number of heating elements is counted and the corresponding status data is retrieved from the recording and tracking module. If there is corresponding status data, measures are taken directly according to the retrieved status data; otherwise, the impact of the two treatment methods of continuing to use the remaining heating elements and immediately replacing them is judged. If it is determined to continue to use them, whether the remaining heating elements can maintain the stability of the temperature in the baking room is judged. If they can maintain stability, they continue to be used; otherwise, they are replaced;

[0011] The record tracking module records the emergency status and processing methods generated by the emergency processing module.

[0012] As a preferred embodiment of the present invention, the emergency processing module processes data on power changes caused by the absence of a heating element as follows:

[0013] Step 1: The areas of the four inner walls of the baking room are , , and The number of heating elements installed on the four inner walls is , , and , the heating power of a single heating element is , then the total heat required to reach the set temperature in the oven is ;

[0014] Step 2: After the heating elements on the inner wall of the oven are damaged, the number of intact heating elements on the four inner walls is , , and , the total heat that the remaining heating elements can generate , in order to make the oven reach the same set temperature, the heat provided by the heating element before and after damage must be equal, that is , then the remaining power required for each heating element is , the power of the remaining heating elements needs to be increased by .

[0015] As a preferred embodiment of the present invention, the emergency processing module processes the data of the service life and working power of the heating element as follows:

[0016] Step 1: The service life of the heating element is , the relationship between the service life of the heating element and the power: , For power The service life of For power The service life of To set the index;

[0017] Step 2: After increasing the power, the service life of the heating element is , the change in service life before and after power adjustment ; The price of each heating element is , the cost of replacing the heating element ;

[0018] Step 3: The time required for each use of the oven is T, and the value created is , then the value of continued use is , Divide the decimal value by the integer part to get the value to continue using After replacement, the remaining service life of the heating element is , then the value of continued use after replacement is ,like , it is determined to increase the power and continue to use it, otherwise, it is determined to replace the damaged heating element.

[0019] As a preferred embodiment of the present invention, the steps of power regulation by the emergency processing module through resistance regulation are as follows:

[0020] Step 1: Power change The power change of the heating element can be adjusted by adjusting the resistance value of the variable resistor. ;

[0021] Step 2: If If the resistance adjustment range of the variable resistor is exceeded, or the resistance of the heating element is not a variable resistor, it is determined that the power change is not feasible through resistance adjustment alone, and an attempt is made to adjust it through voltage.

[0022] As a preferred embodiment of the present invention, the steps of power regulation by the emergency processing module through voltage regulation are as follows:

[0023] Step 1: Power change , then the voltage value adjustment amount ;

[0024] Step 2: If Exceeding the rated voltage of the heating element , it is determined that the change of power is not feasible through voltage regulation alone, and an attempt is made to use a resistance-voltage composite regulation method.

[0025] As a preferred embodiment of the present invention, the steps of the emergency processing module performing power regulation through resistance-voltage composite regulation are as follows:

[0026] Step 1: Power change Derived , but increasing the resistance value will lead to more Joule heat loss per unit time The loss of lower joule heat , that is, when the power is adjusted by increasing the resistance value to generate the same amount of heat, the total amount of heat that the heating element actually needs to generate is Therefore, when the temperature inside the oven is kept constant by means of resistance-voltage composite regulation, the proportion of power regulation achieved by resistance regulation is reduced;

[0027] Step 2: When the voltage is at the rated voltage, the resistance value is adjusted , at this time, the Joule heat loss is minimal, which is more energy-efficient; however, if the heating element is under rated voltage for a long time, it will accelerate aging and produce thermal fatigue. To ensure that the heating element is not under rated voltage, it is necessary to meet ,but ,when When the Joule heat loss is minimal, it is more energy-efficient.

[0028] Step 3: If the required heating power cannot be achieved by adjusting the heating power through the resistance-voltage composite adjustment method, it is determined that the damaged resistor needs to be replaced, a replacement warning signal is generated, and the replacement warning signal is transmitted to the warning light, which sounds a buzzer to remind the maintenance personnel to replace the heating element.

[0029] As a preferred embodiment of the present invention, the emergency processing module performs the following steps to detect the temperature of the heating element after power adjustment:

[0030] Step 1: The distance between adjacent heating elements on the inner wall of the oven is The high temperature generated by the heating element when it is heating will cause thermal aging, thermal expansion, insulation degradation, thermal radiation and thermal convection to itself and adjacent heating elements. In order to ensure that the heating element can work at maximum efficiency, the thermal radiation impact value ;

[0031] Step 2: The heating elements on the inner wall of the oven are also affected by the heat radiation of the surrounding heating elements. ,right The data is compared with the preset thermal radiation threshold. data, determine the The heat radiation generated by the heating element corresponding to the data has no effect on the target heating element;

[0032] Step 3: The number of heating elements that affect the target heating element is , then the heat radiation of other heating elements to the target heating element will cause the total heat absorbed by the target heating element to ;when When the temperature in the oven is too low, a cooling signal is generated and transmitted to the cooling control module. The cooling control module starts the cooling system to cool the target heating element. The oven has excellent thermal insulation performance, and the cooling system cools the oven by heat conduction with the heating element, which has little effect on the temperature in the oven. , is the preset temperature threshold, This is the maximum operating temperature data of the heating element.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] The heating elements of the temperature control core of the baking room are detected through the emergency processing module. When some heating elements cannot work normally, the number of heating elements is counted, and then the cost-effectiveness of the two treatment methods of continuing to use the remaining heating elements and immediately replacing them is judged according to the number of heating element losses. Users can make more informed decisions based on the cost-effectiveness to ensure the rationality and economy of the investment. After determining to continue using them, the remaining heating elements can be judged to maintain the temperature stability in the baking room to prevent affecting the processing operation of the products inside the baking room and causing economic losses to users. When the emergency processing module uses resistance and voltage adjustment for compound adjustment, the ratio of resistance adjustment and voltage adjustment is fully considered to prevent a large increase in energy consumption due to a large resistance adjustment ratio, thereby reducing energy consumption. The recording and tracking module records the emergency status and treatment methods generated by the emergency processing module, thereby improving the traceability and production efficiency of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0036] Figure 1 It is a system flow chart of the present invention. DETAILED DESCRIPTION

[0037] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] Example:

[0039] See also Figure 1As shown, a temperature control system includes a temperature increase control module, a temperature decrease control module, an emergency processing module and a record tracking module;

[0040] The heating operation in the oven is achieved by heating elements evenly distributed on the four inner walls of the oven. The areas of the four inner walls of the oven are , , and The number of heating elements installed on the four inner walls is , , and , the heating power of a single heating element is , the total heat required to reach the set temperature in the oven ;

[0041] After the heating elements on the inner wall of the oven were damaged, the number of intact heating elements on the four inner walls was , , and , the total heat that the remaining heating elements can generate , in order to make the oven reach the same set temperature, the heat provided by the heating element before and after damage must be equal, that is , then the remaining power required for each heating element is ;

[0042] The service life of the heating element is , the relationship between the service life of the heating element and the power: , For power The service life of For power The service life of is the set index; if some heating elements are damaged, the power of the remaining heating elements needs to be increased by , then the service life of the heating element after increasing the power is , the change in service life before and after power adjustment ; The price of each heating element is , the cost of replacing the heating element , the time required for each use of the oven is T, and the value created is , then the value of continued use is , Divide the decimal value by the integer part to get the value to continue using After replacement, the remaining service life of the heating element is , then the use value after replacement is , The value of is also divided by the decimal part to get the integer part to get the value to continue using ,like , it is determined that the power should be increased and continued to be used, otherwise, it is determined that the damaged heating element should be replaced;

[0043] Power change The power change of the heating element can be adjusted by adjusting the resistance value of the variable resistor. ,like If the resistance adjustment range of the variable resistor is exceeded, or the resistance of the heating element is not a variable resistor, it is determined that the change in power cannot be adjusted by resistance alone, and an attempt is made to adjust it by voltage; the change in power , then the voltage value adjustment amount ,like Exceeding the rated voltage of the heating element , it is determined that the power change cannot be achieved by voltage regulation alone, and a resistance-voltage composite regulation method is tried; the power change Derived , the change in power Derived , but increasing the resistance value will lead to more Joule heat loss per unit time The loss of lower joule heat , that is, when the power is adjusted by increasing the resistance value to generate the same amount of heat, the total amount of heat that the heating element actually needs to generate is Therefore, when the temperature inside the oven is kept constant by means of resistance-voltage compound regulation, the proportion of power regulation achieved by resistance regulation is reduced; when the voltage is at the rated voltage, the resistance value adjustment amount , at this time, the Joule heat loss is minimal, which is more energy-efficient; however, if the heating element is under rated voltage for a long time, it will accelerate aging and produce thermal fatigue. To ensure that the heating element is not under rated voltage, it is necessary to meet ,but ,when When the Joule heat loss is minimal, it is more energy-efficient.

[0044] If the required heating power cannot be achieved by adjusting the heating power through the resistance-voltage composite adjustment method, it is determined that the damaged resistor needs to be replaced, a replacement warning signal is generated, and the replacement warning signal is transmitted to the warning light, which sounds a buzzer to remind the maintenance personnel to replace the heating element;

[0045] The distance between adjacent heating elements on the inner wall of the oven is The high temperature generated by the heating element when it is heating will cause thermal aging, thermal expansion, insulation degradation, thermal radiation and thermal convection to itself and adjacent heating elements. In order to ensure that the heating element can work at maximum efficiency, the thermal radiation impact value , is the surface emissivity, is the Stefan-Boltzmann constant, is the radiant surface area of ​​the heating element, is the temperature of the heating element, The temperature in the oven is affected by the heat radiation from the surrounding heating elements. , Components and components represents the surface emissivity, Respectively represent components and components Represents the radiation surface area, is the apparent factor of the radiation heat exchange between components, indicating that the components Radiation to components ratio The data is compared with the preset thermal radiation threshold. The data determines that there is no effect on the target heating element, and the number of heating elements that have an effect on the target heating element is , then the heat radiation of other heating elements to the target heating element will cause the total heat absorbed by the target heating element to , is the heat capacity of the target heating element, are the temperature values ​​of the target heating element before and after being affected by thermal radiation; When the temperature of the target heating element is lowered, the cooling system is started to cool down the target heating element. The thermal insulation performance of the baking room is excellent, and the cooling system cools down the temperature through heat conduction with the heating element, which has little effect on the temperature in the baking room. is the preset temperature threshold, This is the maximum operating temperature data of the heating element.

[0046] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A temperature control system, characterized in that: It includes a temperature rise control module, a temperature drop control module, an emergency processing module and a record tracking module; The temperature rise control module detects the temperature change in the baking room and determines whether the temperature change is abnormal. If it is abnormal, it generates a temperature drop signal and transmits the signal to the temperature drop control module. The temperature reduction control module receives the temperature reduction signal transmitted by the temperature increase control module, and then performs a temperature reduction operation in the baking room; The emergency processing module monitors the working status of the heating elements. If it is determined that a heating element cannot work, the number of heating elements is counted and the corresponding status data is retrieved from the recording and tracking module. If there is corresponding status data, measures are taken directly according to the retrieved status data; otherwise, the impact of the two treatment methods of continuing to use the remaining heating elements and immediately replacing them is judged. If it is determined to continue to use them, whether the remaining heating elements can maintain the stability of the temperature in the baking room is judged. If they can maintain stability, they continue to be used; otherwise, they are replaced; The record tracking module records the emergency status and processing methods generated by the emergency processing module; The emergency processing module processes the data of power changes caused by the loss of heating elements as follows: Step 1: The areas of the four inner walls of the baking room are , , and The number of heating elements installed on the four inner walls is , , and , the heating power of a single heating element is , then the total heat required to reach the set temperature in the oven is ; Step 2: After the heating elements on the inner wall of the oven are damaged, the number of intact heating elements on the four inner walls is , , and , the total heat that the remaining heating elements can generate , in order to make the oven reach the same set temperature, the heat provided by the heating element before and after damage must be equal, that is , then the remaining power required for each heating element is , the power of the remaining heating elements needs to be increased by ; Step 3: The maximum heating power that the remaining heating elements can provide is ,like , it is determined that the remaining heating elements cannot maintain the temperature stability in the baking room, and a replacement warning signal is generated. The replacement warning signal is transmitted to the warning light, which sounds a buzzer to remind the maintenance personnel to replace the heating elements; otherwise, continue to use it.

2. A temperature control system according to claim 1, characterized in that: The emergency processing module processes the data of the heating element's service life and working power as follows: Step 1: The service life of the heating element is , the relationship between the service life of the heating element and the power: , For power Under the service life, For power Under the service life, To set the index; Step 2: After increasing the power, the service life of the heating element is , the change in service life before and after power adjustment ; The price of each heating element is , the cost of replacing the heating element ; Step 3: The time required for each use of the oven is T, and the value created is , then the value of continuing to use is , Divide the decimal value by the integer part to get the value to continue using After replacement, the remaining service life of the heating element is , then the value of continued use after replacement is , The value of is also divided by the decimal part to get the integer part, if , it is determined to increase the power and continue to use it, otherwise, it is determined to replace the damaged heating element.

3. A temperature control system according to claim 2, characterized in that: The steps for the emergency processing module to adjust power through resistance adjustment are as follows: Step 1: Power change The power change of the heating element can be adjusted by adjusting the resistance value of the variable resistor. , is the current data passing through the heating element, is the resistance data of the heating element; Step 2: If If the resistance adjustment range of the variable resistor is exceeded, or the resistance of the heating element is not a variable resistor, it is determined that the change in power is not feasible through resistance adjustment alone, and an attempt is made to adjust it through voltage.

4. A temperature control system according to claim 3, characterized in that: The steps for the emergency processing module to adjust power through voltage regulation are as follows: Step 1: Power change , then the voltage value adjustment amount ; Step 2: If Exceeding the rated voltage of the heating element , it is determined that the power change is not feasible through voltage regulation alone, and an attempt is made to use a resistance-voltage composite regulation method. is the voltage data across the heating element.

5. A temperature control system according to claim 4, characterized in that: The steps for the emergency processing module to adjust power through resistance and voltage compound adjustment are as follows: Step 1: Power change Derived , but increasing the resistance value will lead to more Joule heat loss per unit time The loss of lower joule heat , that is, when the power is adjusted by increasing the resistance value to generate the same amount of heat, the total amount of heat that the heating element actually needs to generate is Therefore, when the temperature inside the oven is kept constant by means of resistance-voltage composite regulation, the proportion of power regulation achieved by resistance regulation is reduced; Step 2: When the voltage is at the rated voltage, the resistance value is adjusted , at this time, the Joule heat loss is minimal, which is more energy-efficient; however, if the heating element is under rated voltage for a long time, it will accelerate aging and produce thermal fatigue. To ensure that the heating element is not under rated voltage, it is necessary to meet ,but ,when When the Joule heat loss is minimal, it is more energy-efficient. and is the proportionality coefficient, is the rated voltage; Step 3: If the required heating power cannot be achieved by adjusting the heating power through the resistance-voltage composite adjustment method, it is determined that the damaged resistor needs to be replaced, a replacement warning signal is generated, and the replacement warning signal is transmitted to the warning light, which sounds a buzzer to remind the maintenance personnel to replace the heating element.

6. A temperature control system according to claim 1, characterized in that: The emergency processing module detects the temperature of the heating element after power adjustment and processes the following steps: Step 1: The distance between adjacent heating elements on the inner wall of the oven is The high temperature generated by the heating element when it is heating will cause thermal aging, thermal expansion, insulation degradation, thermal radiation and thermal convection to itself and adjacent heating elements. In order to ensure that the heating element can work at maximum efficiency, the thermal radiation impact value , is the surface emissivity, is the Stefan-Boltzmann constant, is the radiant surface area of ​​the heating element, is the temperature of the heating element, is the temperature in the baking room; Step 2: The heating elements on the inner wall of the oven are also affected by the heat radiation of the surrounding heating elements. , Components and components represents the surface emissivity, Respectively represent components and components Represents the radiation surface area, is the apparent factor of the radiation heat exchange between components, indicating that the components Radiation to components The ratio, yes The data is compared with the preset thermal radiation threshold. data, determine the The heat radiation generated by the heating element corresponding to the data has no effect on the target heating element; Step 3: The number of heating elements that affect the target heating element is , then the heat radiation of other heating elements to the target heating element will cause the total heat absorbed by the target heating element to , is the heat capacity of the target heating element, are the temperature values ​​of the target heating element before and after being affected by thermal radiation; When the temperature in the oven is too low, a cooling signal is generated and transmitted to the cooling control module. The cooling control module starts the cooling system to cool the target heating element. The oven has excellent thermal insulation performance, and the cooling system cools the oven by heat conduction with the heating element, which has little effect on the temperature in the oven. is the temperature value of the target heating element after being affected by thermal radiation, is the preset temperature threshold, This is the maximum operating temperature data of the heating element.

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