Humidifying water pre-filling and injection atomization intelligent control system of leaf moisture regaining machine

Abstract

The invention belongs to the technical field of tobacco equipment control, and particularly relates to an intelligent control system for humidifying water pre-filling and injection atomization of a leaf moisture regaining machine, which comprises a humidifying water pre-filling control system and an intelligent control system for injection atomization, the humidifying water pre-filling control system comprises a first pneumatic ball valve and a pre-filling pipeline, and a first stop valve, a first filter, a first flow meter and a first pneumatic diaphragm regulating valve are sequentially arranged on the pre-filling pipeline; the injection atomization intelligent control system comprises an injection atomization pipeline, the injection atomization pipeline is connected with an air inlet of the double-medium nozzle, and a second stop valve, a second filter, a steam-water separator, a manual adjusting type pressure reducing valve, a second flow meter and a second pneumatic ball valve are sequentially arranged on the injection atomization pipeline. According to the technical scheme, the pneumatic diaphragm adjusting valve is opened by judging the failure of the manual adjusting type pressure reducing valve, and the opening degree of the pneumatic diaphragm valve is adjusted according to the pressure requirement of the injection steam, so that the injection steam meets the process control requirement.

Description

Technical Field

[0001] The invention belongs to the technical field of tobacco equipment control, and in particular relates to an intelligent control system for pre-filling humidifying water and induced atomization of a blade rehumidifier. Background Art

[0002] The humidification system of the blade rehumidification machine for silk thread production includes humidification water flow control and induced atomization control. The humidification water of the blade rehumidification machine adopts feedback adjustment mode. The data detected by the infrared moisture meter at the outlet of the rehumidification machine is compared with the set moisture data. After program calculation, the opening of the pneumatic diaphragm regulating valve in the humidification water pipeline is feedback-adjusted, and then the amount of humidification water added is controlled to achieve the purpose of the outlet moisture meeting the process requirements. During the entire production process, if humidification water is not needed, the pneumatic diaphragm regulating valve is closed. The humidification water pipeline from the outlet of the pneumatic diaphragm regulating valve to the nozzle is about 10 meters long, but there is no humidification water in the pipeline at this time. If humidification water is needed, after the pneumatic diaphragm regulating valve is opened, it takes 2 seconds for the humidification water to reach the nozzle from the outlet of the pneumatic diaphragm valve, and the moisture of the material cannot be compensated in time, causing the outlet moisture to fluctuate and fail to meet the process requirements.

[0003] Secondly, when the system enters production, the atomizing steam shut-off valve is continuously opened, and the manually adjustable pressure reducing valve adjusts the induced steam pressure. The pressure is observed by a mechanical pressure gauge. When the pressure reducing valve does not work normally, the humidifying water atomization fails, the system cannot sense the abnormality, and cannot take timely measures, resulting in uneven absorption of moisture by the material, which in turn affects the control accuracy of the humidification system. Summary of the invention

[0004] The object of the present invention is to provide an intelligent control system for pre-filling and atomizing humidification water of a blade rehumidifier to solve the problems existing in the above-mentioned background technology.

[0005] To achieve the above objectives, this application is implemented through the following technical solutions:

[0006] A blade rehumidifier humidification water pre-filling and injection atomization intelligent control system, comprising a humidification water pre-filling control system and an injection atomization intelligent control system;

[0007] The humidification water pre-filling control system comprises a first pneumatic ball valve and a pre-filling pipeline connected to the water inlet of the first pneumatic ball valve, a first stop valve, a first filter, a first flow meter and a first pneumatic diaphragm regulating valve are sequentially arranged on the pre-filling pipeline, and the water outlet of the first pneumatic ball valve is connected to the water inlet of the dual-medium nozzle through a pipeline;

[0008] The jet atomization intelligent control system includes an jet atomization pipeline, which is connected to the air inlet of the dual-medium nozzle. A second stop valve, a second filter, a steam-water separator, a manually adjustable pressure reducing valve, a second flow meter and a second pneumatic ball valve are sequentially arranged on the jet atomization pipeline.

[0009] Furthermore, a first mechanical pressure gauge is provided between the first filter of the pre-filling pipeline and the first flow meter.

[0010] Furthermore, a second pneumatic diaphragm regulating valve is arranged on the ejection atomization pipeline in parallel with the manually adjustable pressure reducing valve, and a second mechanical pressure gauge and a third mechanical pressure gauge are respectively arranged on the ejection atomization pipeline on both sides of the manually adjustable pressure reducing valve.

[0011] Furthermore, during the production process, the second pneumatic ball valve remains in an open state.

[0012] Furthermore, a first pressure sensor and a second pressure sensor are respectively arranged before and after the manually adjustable pressure reducing valve.

[0013] Furthermore, during the production process, the first pressure sensor and the second pressure sensor transmit the detected timely pressure data to the controller. When the pressure value of the first pressure sensor is within the set range, the controller determines the pressure difference Δ between the first pressure sensor and the second pressure sensor. If Δ> the set threshold and lasts for the set time, the manually adjustable pressure reducing valve is judged to be failed. The controller controls the second pneumatic diaphragm regulating valve to open, and the opening of the second pneumatic diaphragm regulating valve ensures that the Δ value is within the set range.

[0014] Furthermore, during the production process, if the rehumidifying machine does not need to apply wet water, the pneumatic ball valve is closed.

[0015] The beneficial effects of the present invention are:

[0016] This technical solution installs a pneumatic ball valve near the nozzle on the humidifying water pipeline. During the production process, if humidifying water is not needed, the pneumatic ball valve is closed and the pneumatic diaphragm regulating valve is opened to a set degree so that the pipeline from the diaphragm valve outlet to the pneumatic ball valve is filled with humidifying water. If humidifying water is needed, the pneumatic ball valve is opened and the humidifying water can be quickly applied to the material surface. The diaphragm valve automatically adjusts the humidifying water flow rate according to the control system to meet the outlet moisture control requirements in a timely manner.

[0017] A pressure sensor is added to the induced atomizing steam pipeline, and the control system can monitor the induced steam pressure in real time. In addition, a pneumatic diaphragm regulating valve is installed in parallel with the manually adjustable pressure reducing valve. Under normal operating conditions, the pneumatic diaphragm regulating valve is in a completely closed state. When it is detected that the steam source pressure is normal but the induced pressure is abnormal, the manually adjustable pressure reducing valve is judged to be invalid, and the pneumatic diaphragm regulating valve is opened. The opening of the pneumatic diaphragm valve is adjusted according to the induced steam pressure requirement to make the induced steam meet the process control requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a diagram of the intelligent control system for pre-filling humidification water and induced atomization of the blade rehumidification machine of the present invention.

[0019] Description of reference numerals:

[0020] 1. Second stop valve; 2. Second filter; 3. Steam-water separator; 4. First pressure sensor; 5. Second mechanical pressure gauge; 6. Manually adjustable pressure reducing valve; 7. Second pneumatic diaphragm regulating valve; 8. Second pressure sensor; 9. Third mechanical pressure gauge; 10. Second flow meter; 11. Second pneumatic ball valve; 12. First stop valve; 13. First filter; 14. First mechanical pressure gauge; 15. First flow meter; 16. First pneumatic diaphragm regulating valve; 17. Pre-filling pipeline; 18. First pneumatic ball valve; 19. Dual-medium nozzle; 20. Feed hood; 21. Roller. DETAILED DESCRIPTION

[0021] The technical solution of the present invention is described in detail below in conjunction with the accompanying drawings. The following embodiments are merely exemplary and can only be used to explain and illustrate the technical solution of the present invention, but cannot be construed as limiting the technical solution of the present invention.

[0022] like Figure 1 As shown, the present application provides a blade rehumidification machine humidification water pre-filling and induced atomization intelligent control system, including a humidification water pre-filling control system and an induced atomization intelligent control system.

[0023] The humidification water pre-filling control system includes a first pneumatic ball valve 18 and a pre-filling pipe 17 connected to the water inlet of the first pneumatic ball valve 18, on which the first stop valve 12, the first filter 13, the first flow meter 15 and the first pneumatic diaphragm regulating valve 16 are sequentially arranged, and the water outlet of the first pneumatic ball valve 18 is connected to the water inlet of the dual-medium nozzle 19 through a pipe.

[0024] The jet atomization intelligent control system includes an jet atomization pipeline, which is connected to the air inlet of the dual-medium nozzle 19. A second stop valve 1, a second filter 2, a steam-water separator 3, a manually adjustable pressure reducing valve 6, a second flow meter 10 and a second pneumatic ball valve 11 are sequentially arranged on the jet atomization pipeline.

[0025] In this application, the humidification water pre-filling control system:

[0026] The humidifying water passes through the first stop valve 12, the first filter 13, the first mechanical pressure gauge 14, the first flow meter 15, the first pneumatic diaphragm regulating valve 16, the pre-filling pipe 17, and the first pneumatic ball valve 18 into the humidifying water cavity of the dual-medium nozzle 19. The dual-medium nozzle 19 is fixed on the inner wall of the blade rehumidifier feed cover 20. Under the induced steam, the humidifying water is atomized and evenly applied to the material in the drum 21. The humidifying water of the blade rehumidifier adopts the feedback adjustment mode. According to the data detected by the infrared moisture meter at the outlet of the rehumidifier, it is compared with the set moisture data. After program operation, the opening of the first pneumatic diaphragm regulating valve 16 of the humidifying water pipeline is feedback-adjusted to control the amount of humidifying water added. During the production process, if humidifying water is not needed, the system automatically closes the first pneumatic ball valve 18, and the first pneumatic diaphragm regulating valve 16 is opened to a set degree, so that the pipeline from the outlet of the first pneumatic diaphragm regulating valve 16 to the first pneumatic ball valve 18 is pre-filled with humidifying water. If humidifying water is needed, the first pneumatic ball valve 18 is opened, and the humidifying water can be quickly applied to the material in the drum 21. The first pneumatic diaphragm regulating valve 16 automatically adjusts the humidifying water flow rate according to the control system to meet the outlet moisture control requirements in time, thereby avoiding a water addition window period from the outlet of the first pneumatic diaphragm regulating valve 16 to the dual-medium nozzle 19 pipeline, causing system control lag and affecting control timeliness.

[0027] In the present application, during the production process, if humidifying water does not need to be applied, the system automatically closes the first pneumatic ball valve 18, and the set opening of the first pneumatic diaphragm regulating valve 16 can be automatically adjusted according to the production brand.

[0028] Injection atomization steam online monitoring and intelligent control system:

[0029] The induced atomized steam passes through the second stop valve 1, the second filter 2, the steam-water separator 3, the second mechanical pressure gauge 5, the first pressure sensor 4, the manually adjustable pressure reducing valve 6, the second pneumatic diaphragm regulating valve 7, the third mechanical pressure gauge 9, the second pressure sensor 8, the second flow meter 10, and the second pneumatic ball valve 11 into the induced cavity of the dual-medium nozzle 19, and induced atomized humidifying water so that the humidifying water is evenly applied to the surface of the material in the drum 21. In order to prevent condensed water from being generated in the induced steam pipeline and affecting the atomization effect during the entire production process, the second pneumatic ball valve 11 is always open to keep the induced steam passing into the induced cavity of the dual-medium nozzle 19.

[0030] During the production process, the first pressure sensor and the second pressure sensor transmit the detected timely pressure data to the controller. When the pressure value of the first pressure sensor is within the set range, the controller determines the pressure difference Δ between the first pressure sensor and the second pressure sensor. If Δ> the set threshold and lasts for the set time, the manually adjustable pressure reducing valve is judged to be failed, and the controller controls the second pneumatic diaphragm regulating valve to open. The opening degree of the second pneumatic diaphragm regulating valve ensures that the Δ value is within the set range.

[0031] A first pressure sensor 4 is added to the outlet of the steam-water separator 3, and the control system can monitor the induced steam source pressure in real time. A second pressure sensor 8 is added to the outlet of the manually adjustable pressure reducing valve 6, and the control system can monitor the induced pressure in real time. In addition, a second pneumatic diaphragm regulating valve 7 is installed in parallel at the manually adjustable pressure reducing valve 6. Under normal operating conditions, the second pneumatic diaphragm regulating valve 7 is in a completely closed state. When it is detected that the steam source pressure is normal but the induced pressure is abnormal, it is determined that the manually adjustable pressure reducing valve 6 has failed, and the second pneumatic diaphragm regulating valve 7 is opened. The control system automatically adjusts the opening of the second pneumatic diaphragm regulating valve 7 according to the set value of the induced steam pressure and the detection data of the second pressure sensor 8 at the outlet of the second pneumatic diaphragm regulating valve 7, so that the induced steam meets the process control requirements.

[0032] The present invention installs a first pneumatic ball valve 18 near the dual-medium nozzle 19 on the humidifying water pipeline. During the production process, if humidifying water is not needed, the first pneumatic ball valve 18 is closed, and the first pneumatic diaphragm regulating valve 16 is opened to a set opening, so that the pipeline from the outlet of the first pneumatic diaphragm regulating valve 16 to the first pneumatic ball valve 18 is pre-filled with humidifying water. If humidifying water is needed, the first pneumatic ball valve 18 is opened, and the humidifying water can be quickly applied to the surface of the material in the drum 21. The first pneumatic diaphragm regulating valve 16 automatically adjusts the humidifying water flow rate according to the control system to meet the outlet moisture control requirements in time, thereby avoiding a water addition window period from the outlet of the first pneumatic diaphragm regulating valve 16 to the dual-medium nozzle 19 pipeline, causing system control lag and affecting control timeliness. Secondly, a pressure sensor is added to the induced atomization steam pipeline to monitor the steam source pressure and the induced atomization pressure in real time. A second pneumatic diaphragm regulating valve 7 is installed in parallel on the pipeline of the manually adjustable pressure reducing valve 6. When it is detected that the manually adjustable pressure reducing valve 6 fails, the second pneumatic diaphragm regulating valve 7 can be opened, and the system automatically controls the induced atomization pressure to meet the process requirements.

[0033] The above is only an embodiment of the present application and does not constitute any form of limitation to the present application. Although the present application is disclosed as above with a preferred embodiment, it is not intended to limit the present application. Any technician familiar with the profession, without departing from the scope of the technical solution of the present application, using the technical content disclosed above to make slight changes or modifications are equivalent to equivalent implementation cases and fall within the scope of the technical solution.

Claims

1. An intelligent control system for pre-filling and atomizing humidification water of a blade rehumidifier, characterized in that: Including humidifying water pre-filling control system and induced atomization intelligent control system; The humidification water pre-filling control system comprises a first pneumatic ball valve and a pre-filling pipeline connected to the water inlet of the first pneumatic ball valve, a first stop valve, a first filter, a first flow meter and a first pneumatic diaphragm regulating valve are sequentially arranged on the pre-filling pipeline, and the water outlet of the first pneumatic ball valve is connected to the water inlet of the dual-medium nozzle through a pipeline; The jet atomization intelligent control system includes an jet atomization pipeline, which is connected to the air inlet of the dual-medium nozzle. A second stop valve, a second filter, a steam-water separator, a manually adjustable pressure reducing valve, a second flow meter and a second pneumatic ball valve are sequentially arranged on the jet atomization pipeline.

2. The intelligent control system for pre-filling and atomizing humidification water of a blade rehumidifier according to claim 1 is characterized in that: A first mechanical pressure gauge is provided between the first filter of the pre-filling pipeline and the first flow meter.

3. The intelligent control system for pre-filling and atomizing humidification water of a blade rehumidifier according to claim 1 is characterized in that: A second pneumatic film regulating valve is arranged on the ejection atomization pipeline in parallel with the manual regulating pressure reducing valve, and a second mechanical pressure gauge and a third mechanical pressure gauge are arranged on the ejection atomization pipelines on both sides of the manual regulating pressure reducing valve.

4. The intelligent control system for pre-filling and atomizing humidification water of a blade rehumidifier according to claim 1 is characterized in that: During the production process, the second pneumatic ball valve remains open.

5. The intelligent control system for pre-filling and atomizing humidification water of a blade rehumidifier according to claim 1 is characterized in that: A first pressure sensor and a second pressure sensor are respectively arranged before and after the manually adjustable pressure reducing valve.

6. The intelligent control system for pre-filling and atomizing humidification water of a blade rehumidifier according to claim 5 is characterized in that: During the production process, the first pressure sensor and the second pressure sensor transmit the detected timely pressure data to the controller. When the pressure value of the first pressure sensor is within the set range, the controller determines the pressure difference Δ between the first pressure sensor and the second pressure sensor. If Δ> the set threshold and lasts for the set time, the manually adjustable pressure reducing valve is judged to be failed, and the controller controls the second pneumatic diaphragm regulating valve to open. The opening degree of the second pneumatic diaphragm regulating valve ensures that the Δ value is within the set range.

7. The intelligent control system for pre-filling and atomizing humidification water of a blade rehumidifier according to claim 1 is characterized in that: During the production process, if the rehumidifying machine does not need to apply wet water, close the pneumatic ball valve.

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