阅读说明：本技术 一种陶瓷制品用温度循环试验系统 (Temperature cycle test system for ceramic products ) 是由 邓乐 邹湘祥 叶宗发 欧玉文 于 2021-08-12 设计创作，主要内容包括：本发明属于陶瓷制品生产领域,具体为一种陶瓷制品用温度循环试验系统,通过设置温度监测单元和控制单元,将当前一轮温度与上一周期温度的轮回差值,以及轮回差值与当前一轮温度中最高温度之和；判断轮回差值与当前一轮温度中最高温度之和与上一周期温度中最高温度对应的比值是否满足预设关系,满足时,执行加热信号,切断冷凝器电源,接通加热器电源；不满足时,执行制冷信号,切断加热器电源,接通冷凝器电源；通过自动调节加热和制冷,对陶瓷制品的烧制温度进行控制,减少陶瓷制品的出错率,提高陶瓷制品的生产质量；通过多个周期温度的测量及适宜温度的选取,在加热的过程中对陶瓷制品进行烧制温度的控制,提高对陶瓷制品烧制的把控力。(The invention belongs to the field of ceramic product production, and particularly relates to a temperature cycle test system for ceramic products, which is characterized in that a temperature monitoring unit and a control unit are arranged, and the cycle difference value of the current cycle temperature and the previous cycle temperature and the sum of the cycle difference value and the highest temperature in the current cycle temperature are calculated; judging whether the ratio of the sum of the round difference value and the highest temperature in the current round of temperature to the highest temperature in the previous period of temperature meets a preset relationship, if so, executing a heating signal, cutting off a power supply of a condenser, and switching on a power supply of a heater; if not, executing a refrigeration signal, cutting off a power supply of the heater, and switching on a power supply of the condenser; the firing temperature of the ceramic product is controlled by automatically adjusting heating and refrigerating, so that the error rate of the ceramic product is reduced, and the production quality of the ceramic product is improved; through measurement of multiple periods of temperature and selection of proper temperature, the firing temperature of the ceramic product is controlled in the heating process, and the control force of firing the ceramic product is improved.)

1. The temperature cycle test system for the ceramic products is characterized by comprising an execution unit, a heating unit, a refrigerating unit, a temperature monitoring unit and a control unit, wherein the execution unit is used for changing the temperature;

the control unit generates an execution signal based on the temperature of the execution unit and the temperature of the previous period, the heating unit and the refrigeration unit are connected with the execution unit, the heating unit and the refrigeration unit generate a heating signal or a refrigeration signal based on the received execution signal and send the heating signal or the refrigeration signal to the execution unit, the execution unit performs temperature control based on the heating signal or the refrigeration signal, and the temperature monitoring unit is connected with the execution unit and records the temperature of the current period.

2. The system of claim 1, wherein the current cycle temperature is a temperature spectrum difference value within a preset time period, wherein the temperature spectrum difference value is a difference between a highest temperature within the preset time period and a highest occurrence frequency.

3. The system of claim 2, wherein the previous cycle temperature is a difference in a temperature spectrum of the previous preset time period, and the actuating signal comprises a first actuating signal and a second actuating signal.

4. The system of claim 1, wherein the control unit generates the actuating signal based on the temperature of the actuating unit and the temperature of the previous cycle, and comprises the following steps:

acquiring the temperature of the current round and the temperature of the previous period;

calculating a round difference value of the current round of temperature and the previous period of temperature, and the sum of the round difference value and the highest temperature in the current round of temperature;

and judging whether the ratio of the sum of the round difference value and the highest temperature in the current round temperature to the highest temperature in the previous period temperature meets a preset relation or not, if so, generating a first execution signal, otherwise, generating a second execution signal.

5. The system of claim 4, wherein the predetermined relationship is specifically:

if the ratio is less than 1.1, generating a first execution signal;

if the ratio is larger than or equal to 1.1, a second execution signal is generated.

6. The system of claim 5, wherein the first actuating signal is first encoded using a first encoder, the heating unit includes a first decoder for decoding the first encoding;

the second execution signal adopts a second encoder to perform second encoding, and a second decoder is included in the refrigeration unit and is used for decoding the second encoding.

7. The system of claim 4, wherein the actuator unit comprises a heater, an evaporator, a heat exchanger, a compressor, and a condenser, wherein the heater and the condenser are connected to the heat exchanger, the heat exchanger is connected to the load device, the compressor is connected to the condenser, and the evaporator is connected to the heater.

8. The temperature cycle test system for ceramic products according to claim 1, wherein the execution unit performs temperature control based on the heating signal or the cooling signal, specifically:

when a heating signal is received, cutting off a power supply of the compressor and switching on a power supply of the evaporator, and after a first preset time, cutting off a power supply of the condenser and switching on a power supply of the heater;

and when a refrigerating signal is received, the power supply of the evaporator is cut off and the power supply of the compressor is switched on, and after a second preset time, the power supply of the heater is cut off and the power supply of the condenser is switched on.

9. The system of claim 8, wherein the first predetermined time is the sum of the time required for preheating the heater and performing the self-test, and the second predetermined time is the sum of the time required for precooling the condenser and performing the self-test.

Technical Field

The invention belongs to the field of ceramic product production, in particular to a temperature cycle test system for ceramic products, and relates to a ceramic production temperature cycle technology.

Background

In the ceramic firing process, temperature and air pressure in a kiln are required to be accurately controlled, the temperature of the kiln is too high, or the air pressure is too high, the quality of a ceramic fired finished product is affected, the existing kiln is lack of effective temperature monitoring measures, so that the ceramic is fired for too long time at an inappropriate temperature, the product quality problem is caused, effective monitoring execution measures are lacked, meanwhile, when the temperature of the traditional ceramic firing kiln is measured, a single signal is often used as transmission data when the temperature is detected, the temperature control capability is weaker, the optimum firing temperature cannot be selected by comparing multiple data for different ceramic products, and therefore a new design scheme needs to be provided.

Disclosure of Invention

The invention aims to provide a temperature cycle test system for ceramic products.

The technical problem solved by the invention is as follows:

(1) how to specifically control the temperature through a heating signal or a refrigerating signal, wherein the power supply of a compressor is cut off and the power supply of an evaporator is switched on when the heating signal is received, the power supply of a condenser is cut off and the power supply of a heater is switched on after a first preset time, the power supply of the evaporator is cut off and the power supply of the compressor is switched on when the refrigerating signal is received, and the power supply of the heater is cut off and the power supply of the condenser is switched on after a second preset time, and the signal is transmitted to a worker in time so as to facilitate the subsequent process;

(2) how to select the optimum firing temperature for different ceramic products, and collecting and comparing data for multiple times to fire the ceramic products at the appropriate temperature.

The purpose of the invention can be realized by the following technical scheme:

a temperature cycle test system for ceramic products comprises an execution unit for changing temperature, a heating unit for generating a heating signal, a refrigerating unit for generating a refrigerating signal, a temperature monitoring unit for monitoring the temperature of the execution unit and a control unit for generating the execution signal;

the control unit generates an execution signal based on the temperature of the execution unit and the temperature of the last period, the heating unit and the refrigerating unit are both connected with the execution unit, the heater is used for heating liquid conveyed to load equipment by the circulating system, the condenser is used for exchanging heat with plant water to condense gas in a pipeline of the refrigerating system, when the compressor works, one path of gas enters the condenser, enters the evaporator after being condensed, the temperature rises after exchanging heat in the evaporator, and finally returns to the compressor; the temperature control equipment realizes the precise control of the temperature through different control methods of the load equipment in different states, and the heater only plays a role in rapid temperature rise and does not play a role in usual temperature control, so the equipment realizes the precise control of the temperature and simultaneously realizes the energy saving;

the heating unit and the refrigerating unit generate heating signals or refrigerating signals based on the received execution signals and send the heating signals or the refrigerating signals to the execution unit, the execution unit controls the temperature based on the heating signals or the refrigerating signals, and the temperature monitoring unit is connected with the execution unit and records the temperature of the current period.

Further, the current cycle temperature is specifically a temperature spectrum difference value within a preset time period, where the temperature spectrum difference value is a difference between a highest temperature within the preset time period and a highest occurrence frequency temperature, the previous cycle temperature is specifically a temperature spectrum difference value within a previous preset time period, the execution signal includes a first execution signal and a second execution signal, and the control unit generates the execution signal based on the temperature of the execution unit and the temperature of the previous cycle, and specifically includes the following steps: acquiring the temperature of the current round and the temperature of the previous period; calculating a round difference value of the current round of temperature and the previous period of temperature, and the sum of the round difference value and the highest temperature in the current round of temperature; and judging whether the ratio of the sum of the round difference value and the highest temperature in the current round temperature to the highest temperature in the previous period temperature meets a preset relation or not, if so, generating a first execution signal, otherwise, generating a second execution signal.

Further, the preset relationship is specifically as follows:

if the ratio is less than 1.1, generating a first execution signal;

if the ratio is more than or equal to 1.1, generating a second execution signal;

the first execution signal adopts a first encoder to carry out first encoding, a first decoder is arranged in the heating unit and used for decoding the first encoding; the second execution signal adopts a second encoder to perform second encoding, and a second decoder is included in the refrigeration unit and is used for decoding the second encoding.

Further, the execution unit includes heater, evaporimeter, heat exchanger, compressor and condenser, and wherein, heater and condenser all are connected with the heat exchanger, and the heat exchanger is connected with load equipment, and the compressor is connected with the condenser homogeneous phase, and the evaporimeter is connected with the heater, and the execution unit carries out temperature control based on heating signal or refrigeration signal specifically to be:

when a heating signal is received, cutting off a power supply of the compressor and switching on a power supply of the evaporator, and after a first preset time, cutting off a power supply of the condenser and switching on a power supply of the heater; when a refrigeration signal is received, cutting off the power supply of the evaporator and switching on the power supply of the compressor, and after a second preset time, cutting off the power supply of the heater and switching on the power supply of the condenser; the first preset time is the sum of the time required by preheating and self-checking of the heater; the second preset time is the sum of the time required by precooling and self-checking of the condenser.

Compared with the prior art, the invention has the beneficial effects that:

(1) calculating a cycle difference value of the current round of temperature and the previous period of temperature and the sum of the cycle difference value and the highest temperature in the current round of temperature by arranging a temperature monitoring unit and a control unit; judging whether the ratio of the sum of the round difference value and the highest temperature in the current round of temperature to the highest temperature in the previous period of temperature meets a preset relationship, if so, executing a heating signal, cutting off a power supply of a condenser, and switching on a power supply of a heater; if not, executing a refrigeration signal, cutting off a power supply of the heater, and switching on a power supply of the condenser; the firing temperature of the ceramic product is controlled by automatically adjusting heating and refrigerating, so that the error rate of the ceramic product is reduced, and the production quality of the ceramic product is improved;

(2) through measurement of multiple periods of temperature and selection of proper temperature, the firing temperature of the ceramic product is controlled in the heating process, the optimal firing temperature is selected, and the control force for firing the ceramic product is improved.

Drawings

In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.

FIG. 1 is a flow chart of a temperature cycling test system according to the present invention;

FIG. 2 is a diagram of a temperature cycling test method of the present invention.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.

Referring to fig. 1, a temperature cycle testing system for ceramic products includes an execution unit for changing temperature, a heating unit for generating a heating signal, a cooling unit for generating a cooling signal, a temperature monitoring unit for monitoring the temperature of the execution unit, and a control unit for generating an execution signal; the control unit, the execution unit, the heating unit, the refrigerating unit and the temperature monitoring unit are in communication connection, and signals are transmitted in the connection;

the control unit generates an execution signal based on the temperature of the execution unit and the temperature of the previous period, the heating unit and the refrigerating unit are both connected with the execution unit, the heating unit and the refrigerating unit generate a heating signal or a refrigerating signal based on the received execution signal and send the heating signal or the refrigerating signal to the execution unit, the execution unit controls the temperature based on the heating signal or the refrigerating signal, and the temperature monitoring unit is connected with the execution unit and records the temperature of the current period.

The method specifically includes that a current cycle temperature is a temperature spectrum difference value in a preset time period, the temperature spectrum difference value is a difference between a highest temperature in the preset time period and a highest frequency of occurrence, a previous cycle temperature is a temperature spectrum difference value in a previous preset time period, an execution signal comprises a first execution signal and a second execution signal, and a control unit generates the execution signal based on the temperature of an execution unit and the temperature of the previous cycle, and specifically includes the following steps: acquiring the temperature of the current round and the temperature of the previous period; calculating a round difference value between the current round of temperature and the previous period of temperature, and the sum of the round difference value and the highest temperature in the current round of temperature; and judging whether the ratio of the sum of the round difference value and the highest temperature in the current round temperature to the highest temperature in the previous period temperature meets a preset relation or not, if so, generating a first execution signal, otherwise, generating a second execution signal.

The preset relationship is specifically as follows:

if the ratio is less than 1.1, generating a first execution signal;

if the ratio is more than or equal to 1.1, generating a second execution signal;

the first execution signal adopts a first encoder to carry out first encoding, a first decoder is arranged in the heating unit and used for decoding the first encoding; the second execution signal adopts a second encoder to perform second encoding, and a second decoder is included in the refrigeration unit and is used for decoding the second encoding.

The execution unit comprises a heater, an evaporator, a heat exchanger, a compressor and a condenser, wherein the heater and the condenser are both connected with the heat exchanger, the heat exchanger is connected with load equipment, the compressor is connected with the condenser, the evaporator is connected with the heater, the heater is used for heating liquid conveyed to the load equipment by the circulating system, the condenser is used for exchanging heat with plant water to condense gas in a refrigerating system pipeline, when the compressor works, one path of gas enters the condenser, enters the evaporator after being condensed, the temperature is raised after exchanging heat in the evaporator, and finally the gas returns to the compressor; the temperature control equipment realizes the precise control of the temperature through different control methods of the load equipment in different states, and the heater only plays a role in rapid temperature rise and does not play a role in usual temperature control, so the equipment realizes the precise control of the temperature and simultaneously realizes the energy conservation.

The execution unit performs temperature control based on the heating signal or the refrigerating signal, and specifically comprises the following steps:

when a heating signal is received, cutting off a power supply of the compressor and switching on a power supply of the evaporator, and after a first preset time, cutting off a power supply of the condenser and switching on a power supply of the heater; when a refrigeration signal is received, cutting off the power supply of the evaporator and switching on the power supply of the compressor, and after a second preset time, cutting off the power supply of the heater and switching on the power supply of the condenser; the first preset time is the sum of the time required by preheating and self-checking of the heater; the second preset time is the sum of the time required by precooling and self-checking of the condenser.

Referring to fig. 2, the present invention also provides a temperature cycle test method for ceramic products, the method comprising the steps of:

step A1, initializing so that S1 is equal to the temperature value of the last period of the target temperature value SV; the initialization is performed to store the temperature value of the target temperature value SV in the previous cycle in S1 so that S1 is SV;

step A2, acquiring a real-time target temperature value SV;

step A3, calculating a difference Esv between the target temperature value SV and S1, wherein Esv is SV-S1;

the specific relation between the target temperature value SV and S1 is mainly determined to determine whether temperature reduction control or temperature increase control is required;

step A4, judging the relation between the difference value Esv and the corresponding numerical range;

step a5, executing a temperature control mode corresponding to the numerical range;

judging the relation between the difference value Esv and the corresponding numerical range, and determining whether the temperature control mode is temperature reduction control or temperature rise control;

step A6, generating different signals according to whether the value is less than 1.1;

step A7, if the difference Esv is less than 1.1, when a heating signal is received, cutting off the power supply of the compressor and switching on the power supply of the evaporator, and after a first preset time, cutting off the power supply of the condenser and switching on the power supply of the heater;

if the difference Esv is greater than or equal to 1.1, when a refrigeration signal is received, the evaporator power supply is cut off and the compressor power supply is switched on, and after a second preset time, the heater power supply is cut off and the condenser power supply is switched on.

Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.