CN218296835U - Waste heat utilization control system of setting machine - Google Patents
Waste heat utilization control system of setting machine Download PDFInfo
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- CN218296835U CN218296835U CN202222417053.6U CN202222417053U CN218296835U CN 218296835 U CN218296835 U CN 218296835U CN 202222417053 U CN202222417053 U CN 202222417053U CN 218296835 U CN218296835 U CN 218296835U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
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Abstract
The utility model relates to a waste heat utilization control system of forming machine, waste heat recovery device and exhaust gas purification unit loop through the exhaust gas piping connection and set up the low reaches at the forming machine, air preheating device is connected with the air and advances the pipe, the air advances to be equipped with the air flow that first sensor advances in the pipe in order to monitor the air on managing, be equipped with the waste gas flow in the exhaust gas piping between waste heat recovery device and the forming machine in order to monitor the exhaust gas piping on, the forming machine still installs the energy sensor of monitoring energy material consumption, first sensor, second group's sensor and energy sensor are connected with the control unit, the control unit advances the air flow in the pipe and the waste gas flow in the exhaust gas piping according to the energy material consumption control air of energy sensor monitoring. This application is through controlling the part on the waste heat utilization system to realize energy-conservation and waste heat recovery efficiency's maximize.
Description
Technical Field
The application relates to a waste heat utilization control system of a setting machine.
Background
The setting machine can generate oil smoke containing organic matters and fuel auxiliaries in the operation process of burning energy substances, the main components of the oil smoke are aldehydes, ketones, hydrocarbons, fatty acids, alcohols, esters, lactones, heterocyclic compounds, aromatic compounds and the like, and particularly, a lubricant is added in the manufacturing process of yarns. During the post-finishing of functional fabrics with waterproof, flame retardant and the like, the components of the dye auxiliary agent are more complicated. Simultaneously, some cloth behind the high temperature design, a large amount of fibre in the cloth can get into waste gas, therefore the waste gas of high temperature design both contains a large amount of oil smoke and contains solid particulate matter, can cause very big pollution to the environment, also causes potential safety hazards such as firing very easily.
The waste heat recovery system of the setting machine is used for condensing and filtering chemical auxiliaries, solid particles and the like while recovering waste heat, so that the finally discharged waste gas of the setting machine is cleaner. However, in the production process, the material quality, thickness, width of the cloth and the chemical additives, moisture and the like contained in the cloth are not consistent, which causes the inconsistency of the setting machine in the process of processing the cloth and the technological parameters such as the air quantity of the exhaust gas emission, and the like, so that the waste heat recovery system needs to be adaptively controlled with the actual operation working condition of the setting machine, on one hand, the setting machine can process the cloth under the relatively energy-saving working condition, on the other hand, the waste heat recovery system can recycle the waste heat of the setting machine with the most efficient heat exchange efficiency, and the exhaust gas emitted by the setting machine is the cleanest.
Therefore, there is a need in the art for a system that can precisely control the related components of the setting machine and the waste heat recovery system, so as to balance the consumption of energy materials, the air flow rate in the air inlet pipe, and the exhaust emission, and meet the requirement of maximizing efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model aims at designing a waste heat utilization control system of forming machine, through arrange various types of sensor on forming machine and waste heat recovery system, carry out data acquisition to forming machine and waste heat recovery system running state to carry out corresponding control to relevant part on forming machine and the waste heat recovery system through the control unit, thereby the consumption of balanced energy material, air flow and the exhaust emission volume in the air admission pipe, realize energy-conservation and waste heat recovery efficiency's maximize.
The utility model relates to a waste heat utilization control system of forming machine, including waste heat recovery unit, exhaust gas purification unit and the control unit, the waste heat recovery unit includes waste heat recovery device and air preheating device, waste heat recovery device with the exhaust gas purification unit loops through the exhaust gas pipeline and connects the setting and be in the low reaches of forming machine, air preheating device is connected with the air and advances the pipe, the air advances to be equipped with first sensor in order to monitor on managing air advances the air flow in the pipe, waste heat recovery device with be equipped with the second sensor on the exhaust gas pipeline between the forming machine in order to monitor exhaust gas flow among the exhaust gas pipeline, the forming machine still installs the energy sensor of monitoring energy material consumption, first sensor the second group sensor with energy sensor with the control unit is connected, the control unit basis energy material consumption control of energy sensor monitoring air advance in the pipe air flow with exhaust gas flow in the exhaust gas pipeline.
Wherein a filtering device can be arranged on the waste gas pipeline between the setting machine and the waste heat recovery device; the waste heat recovery device can be provided with a spraying device, and the spraying device is connected with the control unit; heat exchange tubes can be arranged in the waste heat recovery device and the air preheating device respectively, a first heat exchange medium is introduced into the heat exchange tubes, a third sensor for detecting the temperature, the flow and the pressure of the first heat exchange medium is also arranged between the waste heat recovery device and the heat exchange tubes of the air preheating device, and the third sensor is connected with the control unit; a first circulating pump can be arranged between the waste heat recovery device and the heat exchange tube of the air preheating device, and the control unit is connected with the first circulating pump and can control the opening degree of the first circulating pump; the waste gas purification unit can comprise a cooling system, the cooling system is communicated with the heat exchange pipe in the waste gas purification unit through a pipeline, and a second heat exchange medium is introduced into the heat exchange pipe in the waste gas purification unit; a fourth sensor for detecting the temperature, flow and pressure of a second heat exchange medium can be arranged on a pipeline between the cooling system and the exhaust gas purification unit, and the fourth sensor is connected with the control unit; a second circulating pump can be arranged on a pipeline between the cooling system and the heat exchange pipe in the waste gas purification unit, and the control unit is connected with the second circulating pump and can control the opening degree of the second circulating pump; a fifth sensor can be arranged on an exhaust gas pipeline between the waste heat recovery device and the exhaust gas purification unit, and the fifth sensor is connected with the control unit; a sixth sensor can be arranged on the exhaust pipeline downstream of the exhaust purification unit, and the sixth sensor is connected with the control unit; or a seventh sensor is arranged in an exhaust gas pipeline connected with the setting machine, and the seventh sensor is connected with the control unit.
This application can realize the accurate control of the volume of getting into, the exhaust emission volume and the heat transfer medium circulation volume of energy material and preheated air according to the system operating mode that control system surveyed through the setting of each sensor to realize the matching of heat transfer operating mode and system operating mode, realize energy-conservation and waste heat recovery efficiency's maximize, can also realize the safety monitoring and the control to whole system.
Drawings
Fig. 1 is a schematic diagram of a waste heat utilization control system of a setting machine of the present application.
Fig. 2 is a schematic diagram of another waste heat utilization control system of the present application.
FIG. 3 is a schematic diagram of yet another waste heat utilization control system of the present application.
Detailed Description
To make the objects, technical solutions and advantages of the present application more apparent, embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
As shown in fig. 1, the waste heat utilization control system of the setting machine includes a setting machine 1, a waste heat recovery unit 2, a waste gas purification unit 3, and a control unit 4. The waste heat recovery unit 2 and the waste gas purification unit 3 are connected and arranged at the downstream of the setting machine 1 through a waste gas pipeline 11 in sequence. The setting machine 1 can generate heat by burning energy substances such as gas and the like to set and dry the cloth 13. The setting machine 1 is provided with an energy sensor 15 for monitoring the consumption of energy substances, and the energy sensor 15 is connected with the control unit 4. Exhaust gas 14 generated during the processing is drawn from the setting machine 1 into the exhaust gas duct 11 by at least one exhaust gas fan 12. The exhaust gas fan 12 is connected to the control unit 4, and the control unit 4 can control the flow rate of the exhaust gas. The waste heat recovery unit 2 is also connected with an air inlet pipe for supplying external fresh air, and the setting machine 1 can further re-heat the preheated air 23 in the waste heat recovery unit 2 in a gas or medium-pressure steam heat exchange mode to achieve the process conditions of setting and drying the cloth. The control unit 4 detects system parameters through various sensors arranged in the system and performs corresponding control operation through the opening and closing degree of various valves in the control system, the rotating speed of various power components and the like. The air inlet pipe is provided with a first sensor 41 for detecting the temperature, humidity and flow of the air 23. And a second sensor 42 is arranged on the waste gas pipeline 11 connected with the setting machine 1 and is used for detecting the temperature, the humidity, the flow and the chemical auxiliary agent components of the waste gas. This application can master the energy consumption condition and the hot-air and the exhaust waste gas volume that the internal circulation got into of forming machine through the data that above-mentioned energy sensor, first sensor and second sensor detected to the effective supply of hot-air is realized to the entering amount of energy material, preheated air's entering amount and the emission of waste gas according to the actual operation demand of forming machine, can not lead to containing the preheated air of underutilization wherein heat in the exhaust waste gas simultaneously again.
The waste heat recovery unit 2 comprises a waste heat recovery device 21 and an air preheating device 22, and the exhaust gas pipeline 11 is communicated with the waste heat recovery device 21. The air preheating device 22 is connected to an air inlet pipe, which may also be provided with a control valve, which is connected to the control unit 4 for controlling the air flow in the air inlet pipe. Air 23 enters the air preheating device 22 through the air inlet pipe for preheating, and then is conveyed to the inside of the setting machine 1 through the air pipeline. Heat exchange tubes are arranged in the waste heat recovery device 21 and the air preheating device 22, and the first heat exchange medium 26 is connected with the heat exchange tubes in the air preheating device 22 through the waste heat recovery device 21. After the exhaust gas in the exhaust gas pipeline 11 flows into the waste heat recovery device 21, the heat in the exhaust gas is exchanged to the heat exchange pipe in the waste heat recovery device 21 and is conveyed to the heat exchange pipe of the air preheating device 22, and the air entering through the air inlet pipe is preheated. Preferably, a first circulating pump 24 may be further disposed between the heat exchange pipes of the waste heat recovery device 21 and the air preheating device 22, and serves as a power source for circulating the first heat exchange medium 26. The first circulation pump 24 is connected to the control unit 4 for controlling its rotational speed and flow rate. The pipeline is provided with a third sensor 43 for detecting the temperature, flow and pressure of the first heat exchange medium 26; a control valve is also provided, which is connected to the control unit 4 for controlling the flow rate of the first heat exchange medium. A heat exchanger in the waste heat recovery device 21 absorbs waste heat in the waste gas 14 to heat a first heat exchange medium 26 inside; and then the first heat exchange medium 26 transfers the heat to the air 23 which is taken as a power source by the air fan 25 through the heat exchanger in the air preheating device 22, and the air 23 is preheated and then is replenished into the setting machine 1, so that the heat is recycled. The air blower 25 is connected to the control unit 4 for controlling its rotational speed and thus the air flow.
After the waste heat recovery unit 2 recovers the waste heat of the waste gas, the waste gas is further treated by a waste gas purification unit 3. The exhaust gas purification unit 3 may comprise a cooling system 31, and the cooling system 31 communicates with the heat exchange pipe in the exhaust gas purification unit 3 through a pipe. The pipeline is provided with a fourth sensor 44 for detecting the temperature, the flow and the pressure of the second heat exchange medium 33; a control valve is also provided, which is connected to the control unit 4 for controlling the flow rate of the second heat exchange medium. The heat exchanger in the exhaust gas purification unit 3 further absorbs the heat of the exhaust gas to reduce the temperature of the exhaust gas, chemical additives in the exhaust gas are condensed and separated from the exhaust gas, meanwhile, the second heat exchange medium 33 provides circulating power through the second circulating pump 32, and absorbed exhaust gas waste heat is dissipated in the cooling system 31, so that the second heat exchange medium is circulated continuously. The second circulation pump 32 is connected to the control unit 4 for controlling its rotational speed and flow rate. In this embodiment, the preferred aim is to perform condensation purification on the exhaust gas so that the harmful chemical auxiliary agents contained in the exhaust gas can be condensed and separated from the exhaust gas, and therefore a cooling system is provided. Those skilled in the art will recognize that as an alternative embodiment, a secondary waste heat recovery system may be provided in place of the cooling system to more fully utilize the heat in the exhaust.
Preferably, sensors may also be provided in the regions through which a plurality of substances to be detected flow, for example, a fifth sensor 45 may be provided in the exhaust gas line between the heat recovery device 21 and the exhaust gas purification unit 3, and a sixth sensor 46 may be provided in the exhaust gas line of the exhaust gas purification unit 3, in order to detect the exhaust gas conditions at different process locations in real time. Preferably, a filtering device may be further disposed on the exhaust gas pipeline between the setter 1 and the waste heat recovery device 21 to filter and intercept solid waste such as lint, fiber, particulate matter, etc. in the exhaust gas. In the embodiment shown in fig. 2, a spray device 27 and a water pump 28 may also be provided on the waste heat recovery device 21 for spray cleaning of the heat exchanger in the waste heat recovery device 21. The spraying device 27 is connected with the control unit 4, and the control unit 4 controls the spraying device 27 to realize periodic spraying. If the cloth fiber and organic matter are more, the spraying time interval is shortened, so that the spraying time is longer; when the cloth fiber and organic matter are less, the spraying time interval is prolonged, so that the spraying time is shorter.
Preferably, in the embodiment shown in fig. 3, in order to further prevent the setter from generating a fire hazard or other safety hazards during the production process, a seventh sensor 16 may be disposed in the exhaust duct 11 directly connected to the setter 1 to detect a change value of the temperature or the light of the exhaust gas, so as to determine whether a fire occurs. The seventh sensor 16 is connected to the control unit 4, and the control unit 4 can control a fire extinguishing device 17, such as a water spray, a mist spray, etc., installed in the exhaust gas channel 11 to extinguish a fire generated in the exhaust gas channel 11 and prevent a fire from generating greater damage.
Examples
Along with the change of cloth material, thickness, width etc., the technological parameters of the setting machine processing cloth that corresponds all can change to cause the waste gas that the setting machine discharged to also change. Once the heat exchanger is installed in place, if the heat exchange working condition is not changed, the change of the waste gas of the setting machine is hardly adapted. Therefore, the waste heat utilization control system of this application can judge the operating mode of processing cloth according to the physical parameter of waste gas, adjusts heat transfer operating condition according to these changes to improve heat transfer efficiency, also can prevent that the waste gas of direct vent environment from appearing the condition that is not conform to the environmental protection requirement because the change of forming machine cloth simultaneously. According to the application, an algorithm associated with the exhaust gas state is formed through accumulation of empirical data, the algorithm is incorporated into the control unit 4 to form a threshold judgment system, and then the opening degree of the valve on each pipeline and the rotating speed or the flow rate of the exhaust gas fan 12, the first circulating pump 24, the air fan 25 and the second circulating pump 32 are further controlled.
Specifically, the waste gas pipeline connected with the setting machine can adapt to different cloth through the control setting of the waste gas fan, so that the precise control of the heating process parameters is realized; partial fans can be closed, and the condition that the fans draw hot air of the setting machine to cause energy loss is prevented. And, can survey under the condition of forming machine operating mode at control system, control exhaust emission through exhaust fan's air drafting volume to realize the control to forming machine exhaust emission total amount. When processing cloth changes, the setting machine can generate fluctuation of working conditions, the balanced control of 'peak clipping and valley filling' can be realized under the working conditions of the setting machine through the control of the air quantity of the fan, the setting machine is enabled to operate stably, and therefore energy consumption is further saved.
The first circulating pump 24 between the heat exchange pipelines of the waste heat recovery device 21 and the air preheating device 22 is controlled by the intelligent control system, and the circulation quantity of a heat exchange medium is controlled according to the system working condition detected by the intelligent control system, so that the matching of the heat exchange working condition and the cloth shaping processing working condition is realized. The amount of air entering the air preheating device 22 is also controlled by the intelligent control system. The intelligent control system controls the fan to output the air quantity adaptive to the working condition according to the working condition so as to be matched with the air quantity discharged by the waste gas fan. Air valves are arranged on the air preheating device 22 and the air inlet pipeline of the setting machine, and the opening and closing angle of the air valves is controlled by an intelligent control system, so that the air quantity of each inlet of the hot air replenishing setting machine is controllable. The second circulating pump 32 which provides circulating power for the second heat exchange medium 33 is also controlled by the intelligent control system, and the circulating water quantity output by the second circulating pump is adjusted according to the processing working condition detected by the control system, so that the matching with the system working condition is realized, the waste gas is ensured to be effectively purified, and the requirement of the discharge standard of the waste gas can be met.
For example, the second sensor 42 of the control unit 4 detects the temperature, humidity and flow rate of the exhaust air, and thus detects the specific condition of the piece of fabric 13 being processed by the setting machine 1. When the detecting cloth 13 is changed from thin to thick, the air circulation and the hot air temperature required in the setting machine need to be increased, and the control unit 4 can increase the supply amount of the air fan 25. Especially when the setting machine working condition is adjusted adaptively in the cloth conversion process, the flow of the waste gas fan 12 can be reduced through the control unit 4, so that the temperature of the whole setting machine is increased quickly, and the production efficiency is improved. After the thick cloth stable operation state is entered, because the air volume of the air fan 25 is increased at this time, the circulation flow of the waste heat recovery unit 2 needs to be increased so as to realize heat supply balance, and therefore the control unit 4 further adjusts the flow of the first circulation pump 24, so that the waste gas waste heat under the thick cloth processing technology can be efficiently recycled.
For another example, when the detection cloth 13 is changed from thin to thick, the heat recovery unit 2 may not be able to completely convert the heat energy increment value generated by the change of the thickness of the cloth into waste heat, and at this time, the temperature of the exhaust gas will inevitably be further increased, and the condensation effect of the chemical auxiliary agent will be deteriorated. The flow of the second circulating pump 32 is adjusted by the control unit 4, so that the waste gas can exchange heat more sufficiently, and the preset discharge requirement is met. If the detection cloth 13 is thinned from thick, the control unit 4 adjusts the flow rate of the second circulation pump 32 to be small, so that waste caused by increase of electric power consumption due to excessive flow rate can be prevented.
Although the embodiments disclosed in the present application are described above, the descriptions are only for the convenience of understanding the present application, and are not intended to limit the present application. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure as defined by the appended claims.
Claims (10)
1. The waste heat utilization control system of the setting machine is characterized by comprising a waste heat recovery unit, a waste gas purification unit and a control unit, wherein the waste heat recovery unit comprises a waste heat recovery device and an air preheating device, the waste heat recovery device and the waste gas purification unit are sequentially connected and arranged at the downstream of the setting machine through a waste gas pipeline, the air preheating device is connected with an air inlet pipe, a first sensor is arranged on the air inlet pipe to monitor the air flow in the air inlet pipe, a second sensor is arranged on the waste gas pipeline between the waste heat recovery device and the setting machine to monitor the waste gas flow in the waste gas pipeline, an energy sensor for monitoring the consumption of energy substances is further installed on the setting machine, the first sensor, the second sensor and the energy sensor are connected with the control unit, and the control unit controls the air flow in the air inlet pipe and the waste gas flow in the waste gas pipeline according to the consumption of the energy substances monitored by the energy sensor.
2. The waste heat utilization control system according to claim 1, wherein a filtering device is disposed on an exhaust gas pipe between the setting machine and the waste heat recovery device.
3. The waste heat utilization control system according to claim 1, wherein the waste heat recovery device is provided with a spray device, and the spray device is connected with the control unit.
4. The waste heat utilization control system according to claim 1, wherein heat exchange tubes are arranged in the waste heat recovery device and the air preheating device, a first heat exchange medium is introduced into the heat exchange tubes, a third sensor for detecting the temperature, flow and pressure of the first heat exchange medium is further arranged between the waste heat recovery device and the heat exchange tubes of the air preheating device, and the third sensor is connected with the control unit.
5. The waste heat utilization control system according to claim 4, wherein a first circulating pump is arranged between the waste heat recovery device and the heat exchange pipe of the air preheating device, and the control unit is connected with the first circulating pump and can control the opening degree of the first circulating pump.
6. The waste heat utilization control system according to any one of claims 1-5, wherein the exhaust gas purification unit comprises a cooling system, the cooling system is communicated with a heat exchange pipe in the exhaust gas purification unit through a pipeline, and a second heat exchange medium is communicated in the heat exchange pipe in the exhaust gas purification unit.
7. The waste heat utilization control system according to claim 6, wherein a fourth sensor for detecting a temperature, a flow rate and a pressure of the second heat exchange medium is provided on a pipe between the cooling system and the exhaust gas purification unit, and the fourth sensor is connected to the control unit.
8. The waste heat utilization control system according to claim 7, wherein a second circulating pump is provided on a pipe between the cooling system and the heat exchange pipe in the exhaust gas purification unit, and the control unit is connected to the second circulating pump and can control the opening degree of the second circulating pump.
9. A waste heat utilization control system according to any one of claims 1-5 and 7-8, characterized in that a fifth sensor is provided on an exhaust gas pipe between the waste heat recovery device and the exhaust gas purification unit, and the fifth sensor is connected with the control unit.
10. The waste heat utilization control system according to any one of claims 1-5 and 7-8, characterized in that a sixth sensor is arranged on the exhaust gas pipeline downstream of the exhaust gas purification unit, and the sixth sensor is connected with the control unit; or a seventh sensor is arranged in an exhaust gas pipeline connected with the setting machine, and the seventh sensor is connected with the control unit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222417053.6U CN218296835U (en) | 2022-09-13 | 2022-09-13 | Waste heat utilization control system of setting machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222417053.6U CN218296835U (en) | 2022-09-13 | 2022-09-13 | Waste heat utilization control system of setting machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117848114A (en) * | 2024-01-15 | 2024-04-09 | 广东亦凡热能科技有限公司 | Method and system for controlling recovery of waste heat of setting machine |
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- 2022-09-13 CN CN202222417053.6U patent/CN218296835U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117848114A (en) * | 2024-01-15 | 2024-04-09 | 广东亦凡热能科技有限公司 | Method and system for controlling recovery of waste heat of setting machine |
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