CN117415931A - Novel cement brick maintenance control device - Google Patents
Novel cement brick maintenance control device Download PDFInfo
- Publication number
- CN117415931A CN117415931A CN202311436460.4A CN202311436460A CN117415931A CN 117415931 A CN117415931 A CN 117415931A CN 202311436460 A CN202311436460 A CN 202311436460A CN 117415931 A CN117415931 A CN 117415931A
- Authority
- CN
- China
- Prior art keywords
- resistor
- operational amplifier
- potentiometer
- temperature controller
- control device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000004568 cement Substances 0.000 title claims abstract description 20
- 239000011449 brick Substances 0.000 title claims abstract description 16
- 238000012423 maintenance Methods 0.000 title claims abstract description 15
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 22
- 229910052710 silicon Inorganic materials 0.000 claims description 22
- 239000010703 silicon Substances 0.000 claims description 22
- 239000003990 capacitor Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 description 6
- 230000000630 rising effect Effects 0.000 description 4
- 239000013078 crystal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Control Of Temperature (AREA)
Abstract
The invention discloses a novel cement brick maintenance control device, which relates to the technical field of cement concrete product manufacturing and comprises a steam generator and a temperature controller, wherein the temperature controller comprises a first operational amplifier, a second MCU chip, a first potentiometer, a second resistor, a third potentiometer, a fourth resistor and a first connecting end. The invention can control the temperature rate in the cement rotary curing process, so that the temperature is stably increased.
Description
Technical Field
The invention relates to the technical field of cement concrete product manufacturing, in particular to a novel cement brick maintenance control device.
Background
Publication No.: CN202607818U discloses a novel cement brick maintenance control device, adopts temperature sensor to gather the indoor ambient temperature of cement kiln to heat up the device to heat up, but kiln ignition intensifies up the curve and can change according to different materials, and the prefabrication that the example concrete is pre-buried needs the heating rate should not be greater than 10 degrees per hour, and dehydration period is not greater than 30 degrees per hour etc. and also need to carry out suitable adjustment according to conditions such as concrete ratio design and environment, consequently proposes a novel cement brick maintenance control device that can adjust the heating rate.
Disclosure of Invention
Aiming at the technical problems, the invention aims to provide a novel cement brick maintenance control device which comprises a steam generator and a temperature controller, wherein the temperature controller comprises a first operational amplifier U1, a second MCU chip U2, a first potentiometer R1, a second resistor R2, a third potentiometer R3, a fourth resistor R4 and a first connecting end P1, one end of the first potentiometer R1 is connected with a power supply, the other end of the first potentiometer R1, a tap end of the first potentiometer R1 and an in-phase end of the first operational amplifier U1 are connected with one end of the second resistor R2, the output end of the first operational amplifier U1 is connected with 12 pins and 11 pins of the third potentiometer R3 and the first connecting end P1, the first connecting end P1 is connected with the steam generator, the 4 pin of the third potentiometer R3 is connected with a pin of a first capacitor C1 of the second MCU chip U2, the 5 pin of the third potentiometer R3 is connected with a pin of the PC2 of the second MCU chip U2, and the other end of the third potentiometer R3 is connected with the first resistor U1 and the fourth resistor R4.
Further, the temperature controller further comprises a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth potentiometer R9, a third operational amplifier U3, a fourth operational amplifier U4, a fifth operational amplifier U5, a first triode Q1, a second triode Q2, a first capacitor C1 and a first controllable silicon D1, one end of the fifth resistor R5 is connected with one end of the sixth resistor R6, the anode of the first controllable silicon D1 and the collector of the first triode Q1, the control electrode of the first controllable silicon D1 is connected with the output end of the third operational amplifier U3, the cathode of the first controllable silicon D1 is connected with the same-phase end of the third operational amplifier U3, the inverting end of the third operational amplifier U4 is connected with the inverting end of the fourth operational amplifier U4, the output end of the fourth operational amplifier U4 is connected with the base of the first triode Q1, the output end of the third operational amplifier U3 is connected with the second triode Q2, the base of the second triode Q2 is connected with one end of the sixth resistor R6, the other end of the first controllable silicon D1 is connected with the other end of the emitter of the third resistor R3, the other end of the third resistor R3 is connected with the other end of the third resistor R3, the third resistor R7 is connected with the other end of the third resistor R3, and the other end of the third resistor R3 is connected with the same end of the other end of the third resistor 7.
Further, the temperature controller further comprises a tenth resistor R10, an eleventh resistor R11, a second resistor R2 and a sixth operational amplifier U6, wherein the in-phase end of the sixth operational amplifier U6 is connected with the cathode of the first controllable silicon D1, the inverting end of the sixth operational amplifier U6 is connected with one end of the eleventh resistor R11 and one end of the twelfth resistor R12, the other end of the twelfth resistor R12 is connected with a power supply, the output end of the sixth operational amplifier U6 is connected with the 3 pin of the third potentiometer R3, one end of the tenth resistor R10, and the other end of the tenth resistor R10 and the other end of the eleventh resistor R11 are connected with a grounding end.
Further, the temperature controller further comprises a thirteenth resistor R13 and a fourteenth resistor R14, one end of the thirteenth resistor R13 is connected with a power supply, the other end of the thirteenth resistor R13 is connected with the inverting end of the third operational amplifier U3, the inverting end of the fourth operational amplifier U4 and one end of the fourteenth resistor R14, and the other end of the fourteenth resistor R14 is connected with a grounding end.
Further, the temperature controller further comprises a fifteenth resistor R15 and a sixteenth resistor R16, one end of the fifteenth resistor R15 is connected with a power supply, the other end of the fifteenth resistor R15 is connected with the same-phase end of the fifth operational amplifier U5, one end of the sixteenth resistor R16 is connected, and the other end of the sixteenth resistor R16 is connected with a grounding end.
Further, the temperature controller further comprises a seventeenth resistor R17 and a first light emitting diode D2, one end of the seventeenth resistor R17 is connected with a power supply, the other end of the seventeenth resistor R17 is connected with the anode of the first light emitting diode D2, and the cathode of the first light emitting diode D2 is connected with a grounding end.
Further, the temperature controller further comprises an eighteenth resistor R18, one end of the eighteenth resistor R18 is connected with the base electrode of the first triode Q1, and the other end of the eighteenth resistor R18 is connected with the ground terminal.
Further, the temperature sensor is connected with a temperature controller.
Compared with the prior art, the invention has the beneficial effects that:
the invention can control the temperature rising rate in the final temperature rising process, and can adjust the temperature rising time speed in the process, so that the temperature rises steadily, and the quality defect of heat release during crystal transformation is prevented.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following description will briefly explain the drawings needed in the prior art and the embodiments, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a control device provided by the present invention.
Fig. 2 and fig. 3 are schematic diagrams of a circuit structure of a temperature controller according to the present invention.
Detailed Description
In order that the objects and advantages of the invention will become more readily apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings, it being understood that the following text is only intended to describe one or more specific embodiments of the invention and is not intended to limit the scope of the invention as defined in the appended claims.
Referring to the drawings, the invention relates to a novel cement brick maintenance control device, which comprises a steam generator and a temperature controller, wherein the temperature controller comprises a first operational amplifier U1, a second MCU chip U2, a first potentiometer R1, a second resistor R2, a third potentiometer R3, a fourth resistor R4 and a first connecting end P1, one end of the first potentiometer R1 is connected with a power supply, the other end of the first potentiometer R1, a tap end of the first potentiometer R1, an in-phase end of the first operational amplifier U1, one end of the second resistor R2 are connected, an output end of the first operational amplifier U1 is connected with 12 pins and 11 pins of the third potentiometer R3, the first connecting end P1 is connected with the steam generator, a pin 4 of the third potentiometer R3 is connected with a pin P first capacitor C1 of the second MCU chip U2, a pin 5 of the third potentiometer R3 is connected with a pin PC2 of the second MCU chip U2, and a pin 10 of the third potentiometer R3 is connected with an inverting end of the first operational amplifier U1, a fourth resistor R4 and the other end of the second MCU chip U2.
Specifically, the temperature controller further comprises a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth potentiometer R9, a third operational amplifier U3, a fourth operational amplifier U4, a fifth operational amplifier U5, a first triode Q1, a second triode Q2, a first capacitor C1 and a first silicon controlled rectifier D1, one end of the fifth resistor R5 is connected with one end of the sixth resistor R6, the anode of the first silicon controlled rectifier D1 and the collector of the first triode Q1, the control electrode of the first silicon controlled rectifier D1 is connected with the output end of the third operational amplifier U3, the cathode of the first silicon controlled rectifier D1 is connected with the same-phase end of the third operational amplifier U3, the inverting end of the third operational amplifier U4 is connected with the inverting end of the fourth operational amplifier U4, the output end of the fourth operational amplifier U4 is connected with the base of the first triode Q1, the output end of the third operational amplifier U3 is connected with the second triode Q2, the base of the second triode Q2 is connected with one end of the sixth resistor R6, the other end of the emitter of the third triode Q2 is connected with the other end of the third resistor R3, the other end of the third resistor R7 is connected with the other end of the third resistor R3, the other end of the third resistor R3 is connected with the same-phase end of the third resistor, and the other end of the third resistor R3 is connected with the other end of the third resistor.
Specifically, the temperature controller further comprises a tenth resistor R10, an eleventh resistor R11, a second resistor R2 and a sixth operational amplifier U6, wherein the in-phase end of the sixth operational amplifier U6 is connected with the cathode of the first controllable silicon D1, the inverting end of the sixth operational amplifier U6 is connected with one end of the eleventh resistor R11 and one end of a twelfth resistor R12, the other end of the twelfth resistor R12 is connected with a power supply, the output end of the sixth operational amplifier U6 is connected with the 3 pin of the third potentiometer R3, one end of the tenth resistor R10, and the other end of the tenth resistor R10, the other end of the eleventh resistor R11 and the ground end are connected.
Specifically, the temperature controller further comprises a thirteenth resistor R13 and a fourteenth resistor R14, one end of the thirteenth resistor R13 is connected with a power supply, the other end of the thirteenth resistor R13 is connected with the inverting end of the third operational amplifier U3, the inverting end of the fourth operational amplifier U4 and one end of the fourteenth resistor R14, and the other end of the fourteenth resistor R14 is connected with a grounding end.
Specifically, the temperature controller further comprises a fifteenth resistor R15 and a sixteenth resistor R16, one end of the fifteenth resistor R15 is connected with a power supply, the other end of the fifteenth resistor R15 is connected with the same-phase end of the fifth operational amplifier U5, one end of the sixteenth resistor R16 is connected, and the other end of the sixteenth resistor R16 is connected with a grounding end.
Specifically, the temperature controller further comprises a seventeenth resistor R17 and a first light emitting diode D2, one end of the seventeenth resistor R17 is connected with a power supply, the other end of the seventeenth resistor R17 is connected with the anode of the first light emitting diode D2, and the cathode of the first light emitting diode D2 is connected with a grounding end.
Specifically, the temperature controller further comprises an eighteenth resistor R18, one end of the eighteenth resistor R18 is connected with the base electrode of the first triode Q1, and the other end of the eighteenth resistor R18 is connected with the ground terminal.
Specifically, the temperature sensor is connected with a temperature controller.
In this embodiment, considering that the heating rate of the manufactured materials determines that a crystal will not generate exothermic reaction when being transformed, the highest temperature of the required heating is set in series through the first potentiometer R1 and the second resistor R2, the third potentiometer R3 and the fourth resistor R4 are used for heating rate control, the first connection end P1 is used as a control signal of the steam generator, the low resistance to the high resistance in the stepping process of the third potentiometer R3 is heating up, otherwise, the first potentiometer is stopped or recalled, in the initial state, the pin P first capacitor C1 and the pin PC2 of the second MCU chip U2 enable a pull-up resistor, the pin 3 of the third potentiometer R3 is connected with any pin of the second MCU chip U2, the pin enable pull-down is performed, the pin 4 and the pin 5 of the third potentiometer R3 are connected with the second MCU chip U2 through the P first capacitor C1 and the PC2, when the first potentiometer R1 is finished, the output of the second MCU chip U2 enables the P first capacitor C1 to be high level, otherwise, the pin 3 is converted to the high level by the second MCU chip U2, the signal is output from the pin 3 to the pin 4 when the high level of the second potentiometer R2 is stopped, and the second MCU chip is finished, and the signal is output from the pin 3 to the pin 3 is turned-low level, and the high level of the second MCU chip is enabled.
In this embodiment, considering the temperature control at a time speed in the final temperature rising process of different processes, the output of the third operational amplifier U3 is directly connected with the 3 pin of the third potentiometer R3, the 3 pin of the third potentiometer R3 is removed from being connected with the second MCU chip U2, the connection between the 4 pin of the third potentiometer R3 and the second MCU chip U2 is replaced by being connected with a power supply, meanwhile, the in-phase end of the fifth operational amplifier U5 and the inverting end of the third operational amplifier U3 are set with a start threshold signal through the power supply, the inverting end of the fourth operational amplifier U4 is set with a stop threshold signal through the power supply, when in use, the constant term coefficient configured between the first capacitor C1 and the ninth potentiometer R9 is changed, then the potential of the end of the first capacitor C1 is output through the ninth potentiometer R9 loop, the power supply signal of the end of the fifth operational amplifier U5 is enabled to be turned on through the first thyristor D1, the power supply signal of the end of the fifth resistor R5 is enabled to be turned on through the first thyristor D1, the inverting end of the third operational amplifier U3 is enabled to be turned on through the second thyristor D1, the signal of the third thyristor Q1 is enabled to be turned on through the third thyristor Q2, and the output of the fourth operational amplifier Q1 is enabled to be turned on through the third transistor Q1, and the output of the fourth transistor Q1 is enabled to be turned on through the third transistor Q1. The fifth resistor R5 and the sixth resistor R6 are used for supplying power to the first silicon controlled rectifier D1, the seventh resistor R7 is used for the configuration that the same-phase end potential of the third operational amplifier U3 is pulled up when the first silicon controlled rectifier D1 is turned on, the ninth potentiometer R9 is adjusted back to the initial position when the first silicon controlled rectifier D1 is stopped, the second MCU chip U2 outputs the high level of the 5 pin of the third potentiometer R3 when the first silicon controlled rectifier D1 is stopped, and the ninth potentiometer R9 is adjusted in the opposite direction, so that the first silicon controlled rectifier D1 is controlled by one pin.
In this embodiment, considering that the second triode Q2 will have a certain magnitude of potential pulled down when turned on, but the third potentiometers R3 of different types are different in input, the independent configuration of the third potentiometers R3 and the starting threshold signals of the third operational amplifier U3 needs to be considered, so that the connection of the third operational amplifier U3 directly output to the third potentiometers R3 is removed, replaced by the sixth operational amplifier U6, the same phase end of the sixth operational amplifier U6 is connected with the cathode of the first silicon controlled rectifier D1, the eleventh resistor R11 and the twelfth resistor R12 are output thresholds of the sixth operational amplifier U6, and when the third potentiometers R3 are replaced, the power input of the sixth operational amplifier U6 is changed correspondingly. At this time, the inverting terminal of the third operational amplifier U3 and the inverting terminal of the fourth operational amplifier U4 share the configuration of the thirteenth resistor R13 and the fourteenth resistor R14, the fifteenth resistor R15 and the sixteenth resistor R16 are used for inputting the starting threshold signal of the fifth operational amplifier U5, the seventeenth resistor R17 is used for limiting the current of the first light emitting diode D2, the first light emitting diode D2 is used for indicating whether the current temperature controller is started, the eighteenth resistor R18 is used for outputting the loop of the fourth operational amplifier U4, and the temperature sensor is used for detecting the real-time temperature of the curing kiln.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. The novel cement brick maintenance control device is characterized by comprising a steam generator and a temperature controller, wherein the temperature controller comprises a first operational amplifier, a second MCU chip, a first potentiometer, a second resistor, a third potentiometer, a fourth resistor and a first connecting end, one end of the first potentiometer is connected with a power supply, the other end of the first potentiometer, a tap end of the first potentiometer is connected with an in-phase end of the first operational amplifier and one end of the second resistor, an output end of the first operational amplifier is connected with 12 pins and 11 pins of the third potentiometer, the first connecting end is connected with the steam generator, a 4 pin of the third potentiometer is connected with a P first capacitor pin of the second MCU chip, a 5 pin of the third potentiometer is connected with a PC2 pin of the second MCU chip, a 10 pin of the third potentiometer is connected with an inverting end of the first operational amplifier and one end of the fourth resistor, and the other end of the second resistor is connected with the other end of the fourth resistor.
2. The novel cement brick maintenance control device according to claim 1, wherein the temperature controller further comprises a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth potentiometer, a third operational amplifier, a fourth operational amplifier, a fifth operational amplifier, a first triode, a second triode, a first capacitor and a first controllable silicon, one end of the fifth resistor is connected with one end of the sixth resistor, a first controllable silicon anode and a first triode collector, the first controllable silicon control electrode is connected with an output end of the third operational amplifier, a cathode of the first controllable silicon is connected with an in-phase end of the third operational amplifier, an inverting end of the third operational amplifier is connected with an inverting end of the fourth operational amplifier, an output end of the fourth operational amplifier is connected with a base electrode of the first triode, an output end of the third operational amplifier is connected with a base electrode of the second triode, a collector of the second triode is connected with a power supply, an emitter of the second triode is connected with one end of the eighth resistor, the other end of the eighth resistor is connected with one end of the first capacitor, an other end of the fourth operational amplifier, an in-phase end of the fourth operational amplifier, a ninth tap is connected with an in-phase end of the ninth resistor, and the other end of the ninth resistor is connected with an in-phase end of the third resistor.
3. The novel cement brick maintenance control device according to claim 2, wherein the temperature controller further comprises a tenth resistor, an eleventh resistor, a second resistor and a sixth operational amplifier, the in-phase end of the sixth operational amplifier is connected with the cathode of the first silicon controlled rectifier, the inverting end of the sixth operational amplifier is connected with one end of the eleventh resistor and one end of the twelfth resistor, the other end of the twelfth resistor is connected with a power supply, the output end of the sixth operational amplifier is connected with 3 pins of the third potentiometer, one end of the tenth resistor is connected with the other end of the tenth resistor, and the other end of the eleventh resistor is connected with the ground.
4. The novel cement brick maintenance control device according to claim 2, wherein the temperature controller further comprises a thirteenth resistor and a fourteenth resistor, one end of the thirteenth resistor is connected with a power supply, the other end of the thirteenth resistor is connected with the inverting end of the third operational amplifier, the inverting end of the fourth operational amplifier and one end of the fourteenth resistor, and the other end of the fourteenth resistor is connected with a grounding end.
5. The novel cement brick maintenance control device according to claim 2, wherein the temperature controller further comprises a fifteenth resistor and a sixteenth resistor, one end of the fifteenth resistor is connected with a power supply, the other end of the fifteenth resistor is connected with the same-phase end of the fifth operational amplifier and one end of the sixteenth resistor, and the other end of the sixteenth resistor is connected with a grounding end.
6. The novel cement brick maintenance control device according to claim 1, wherein the temperature controller further comprises a seventeenth resistor and a first light emitting diode, one end of the seventeenth resistor is connected with a power supply, the other end of the seventeenth resistor is connected with an anode of the first light emitting diode, and a cathode of the first light emitting diode is connected with a ground terminal.
7. The novel cement brick maintenance control device according to claim 2, wherein the temperature controller further comprises an eighteenth resistor, one end of the eighteenth resistor is connected with the base electrode of the first triode, and the other end of the eighteenth resistor is connected with the grounding end.
8. The novel cement brick curing control device of claim 1, further comprising a temperature sensor, wherein the temperature sensor is connected to the temperature controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311436460.4A CN117415931B (en) | 2023-11-01 | 2023-11-01 | Cement brick maintenance control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311436460.4A CN117415931B (en) | 2023-11-01 | 2023-11-01 | Cement brick maintenance control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117415931A true CN117415931A (en) | 2024-01-19 |
| CN117415931B CN117415931B (en) | 2024-04-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311436460.4A Active CN117415931B (en) | 2023-11-01 | 2023-11-01 | Cement brick maintenance control device |
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| CN (1) | CN117415931B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120292300A1 (en) * | 2011-05-18 | 2012-11-22 | Nihon Dempa Kogyo Co., Ltd. | Temperature control circuit of oven controlled crystal oscillator |
| CN106877287A (en) * | 2017-04-05 | 2017-06-20 | 京东方科技集团股份有限公司 | A kind of thermal-shutdown circuit and driving method |
| CN208432885U (en) * | 2018-07-06 | 2019-01-25 | 无锡市欧凯电子有限公司 | Cement soundness test pressure steams kettle digital display instrument circuit |
| CN213780773U (en) * | 2020-12-31 | 2021-07-23 | 广州市鸿磊混凝土有限公司 | Automatic temperature control system of concrete curing device |
| CN116610058A (en) * | 2023-06-02 | 2023-08-18 | 长沙非同节能科技有限公司 | Energy-saving operation control system of air energy heat pump |
| CN116750857A (en) * | 2023-08-17 | 2023-09-15 | 秦皇岛海绵环保设备有限公司 | Intelligent sewage treatment system based on biological regulation and control |
-
2023
- 2023-11-01 CN CN202311436460.4A patent/CN117415931B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120292300A1 (en) * | 2011-05-18 | 2012-11-22 | Nihon Dempa Kogyo Co., Ltd. | Temperature control circuit of oven controlled crystal oscillator |
| CN106877287A (en) * | 2017-04-05 | 2017-06-20 | 京东方科技集团股份有限公司 | A kind of thermal-shutdown circuit and driving method |
| CN208432885U (en) * | 2018-07-06 | 2019-01-25 | 无锡市欧凯电子有限公司 | Cement soundness test pressure steams kettle digital display instrument circuit |
| CN213780773U (en) * | 2020-12-31 | 2021-07-23 | 广州市鸿磊混凝土有限公司 | Automatic temperature control system of concrete curing device |
| CN116610058A (en) * | 2023-06-02 | 2023-08-18 | 长沙非同节能科技有限公司 | Energy-saving operation control system of air energy heat pump |
| CN116750857A (en) * | 2023-08-17 | 2023-09-15 | 秦皇岛海绵环保设备有限公司 | Intelligent sewage treatment system based on biological regulation and control |
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|---|---|
| CN117415931B (en) | 2024-04-26 |
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