WO2022218283A1 - Device and method for automatic forced discharge of condensate water based on self-diagnosis technique - Google Patents

Device and method for automatic forced discharge of condensate water based on self-diagnosis technique Download PDF

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Publication number
WO2022218283A1
WO2022218283A1 PCT/CN2022/086243 CN2022086243W WO2022218283A1 WO 2022218283 A1 WO2022218283 A1 WO 2022218283A1 CN 2022086243 W CN2022086243 W CN 2022086243W WO 2022218283 A1 WO2022218283 A1 WO 2022218283A1
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Prior art keywords
pressure
control module
valve
membrane valve
condensed water
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PCT/CN2022/086243
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French (fr)
Chinese (zh)
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金立杰
张江涛
许旭
王照辉
刘霞
李虹
柴红立
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河北白沙烟草有限责任公司保定卷烟厂
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Publication of WO2022218283A1 publication Critical patent/WO2022218283A1/en
Priority to ZA2023/06340A priority Critical patent/ZA202306340B/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
    • F16K37/0091—For recording or indicating the functioning of a valve in combination with test equipment by measuring fluid parameters

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  • the invention relates to the technical field of condensed water discharge, in particular to a device and method for automatic forced discharge of condensed water based on self-diagnosis technology.
  • the purpose of the present invention is to provide a condensed water automatic forced discharge device and method based on self-diagnosis technology, which can solve the problems in the prior art that the condensed water is not discharged in time, and the poor discharge affects product quality.
  • the present invention provides the following technical solutions:
  • An automatic forced discharge device for condensed water based on self-diagnosis technology comprising:
  • the closed condensate recovery system and the atmospheric pressure recovery tank are connected through a pipeline system, and the pipeline system includes a first pipeline, a second pipeline and a third pipeline that are communicated with each other;
  • a temperature sensor disposed inside the first pipe and electrically connected to the control module, for outputting first temperature information, and the control module for receiving the first temperature information;
  • a membrane valve structure comprising a first membrane valve and a second membrane valve, the first membrane valve is connected in series with the second pipeline, and the second membrane valve is connected in series with the third pipeline;
  • a pressure transmitter which is arranged inside the first pipeline and is electrically connected to the control module for outputting second temperature information, the control module receives the second temperature information, and the control module uses for judging whether the first temperature information is less than the second temperature information, and if so, the control module outputs a current signal to control the opening of the membrane valve structure;
  • a first pressure sensor and a second pressure sensor which are respectively arranged on both sides of the steam trap, both of the first pressure sensor and the second pressure sensor are electrically connected to the control module for detecting the pressure on both sides of the steam trap and output first pressure information and second pressure information respectively;
  • the control module is used to determine the magnitude relationship between the first pressure information and the second pressure information, and if the first pressure information is greater than the second pressure information, the control module controls the first membrane valve Open, the second membrane valve is closed, the condensed water is discharged into the closed condensed water recovery system, if the first pressure information is less than the second pressure information, the control module controls the first membrane The valve is closed, the second membrane valve is opened, and the condensed water is discharged into the atmospheric pressure recovery tank.
  • the present invention can also do following improvement:
  • the automatic forced condensate discharge device further includes a first check valve and a second check valve, the first check valve is connected in series with the second pipeline, and the second check valve is connected in series in the third pipeline.
  • both the first membrane valve and the first one-way valve are connected with the second pipeline through flanges, and both the second membrane valve and the second one-way valve are connected with the third pipeline Connection by flange.
  • the pressure transmitter, the temperature sensor, the first pressure sensor and the second pressure sensor are screwed with the first pipeline respectively, and the pressure transmitter, the temperature sensor and the depth of the first pressure sensor and the second pressure sensor inserted into the first pipeline is 8-10 times the diameter of the protection pipe.
  • first pressure sensor and the second pressure sensor are connected to the input end of the control module through several strands of copper wires.
  • the device for automatic forced discharge of condensed water further includes a valve island, and the valve island, the first membrane valve and the second membrane valve are connected to the communication module of the control module through a Profibus PA industrial Ethernet cable.
  • the condensed water automatic forced discharge device further comprises a first positioner, a second positioner, a first valve position sensor and a second valve position sensor, the first positioner and the second positioner are respectively connected with The valve island is electrically connected, the output end of the first positioner is electrically connected with the second membrane valve, and the output end of the second positioner is electrically connected with the first membrane valve; the The opening degrees of the first membrane valve and the second membrane valve are detected by the first valve position sensor and the second valve position sensor respectively and fed back to the first positioner and the second positioner accordingly.
  • the device for automatic forced discharge of condensed water further includes a timer, and the timer is electrically connected to the control module.
  • the control module When the first valve position detector and the second valve position detector work, all the The control module outputs trigger information, the timer receives the trigger information and starts timing, the timer has a set time, and when the set time is reached, the control module forcibly closes the membrane valve structure.
  • the automatic forced condensate discharge device further includes an alarm module, the alarm module is electrically connected to the control module, and when the timer reaches the set time, the control module outputs an alarm signal, The alarm module receives the alarm signal to alarm.
  • a method for automatically and forcibly discharging condensed water using the above device specifically comprises:
  • control module controls the opening of the membrane valve structure according to the difference output current signal
  • the first pressure sensor and the second pressure sensor are used to detect the pressure on both sides of the steam trap and output the first pressure information and the second pressure information respectively;
  • the control module is used to determine the magnitude relationship between the first pressure information and the second pressure information. If the first pressure information is greater than the second pressure information, the control module controls the first membrane valve to open, the second membrane valve to close, and the condensed water to be discharged into the In the closed condensate water recovery system, if the first pressure information is less than the second pressure information, the control module controls the first membrane valve to close, the second membrane valve to open, and the condensate is discharged into the atmospheric pressure recovery tank.
  • the automatic forced discharge device for condensed water based on the self-diagnosis technology in the present invention measures the actual temperature of the steam in the pipeline through the temperature sensor, and the measured temperature is compared with the temperature detected by the pressure transmitter.
  • the output 4-20mA drives the membrane valve structure to open, the opening degree is 0-70%, the steam is forced to discharge, and the condensed water is taken away by the steam until the difference is "4mA"; at the same time, the valve position detector is turned on.
  • the PLC control module control program starts timing, after 10 minutes of steam discharge, the difference cannot disappear, the PLC control module forcibly closes the valve, and alarms, prompting the maintenance personnel to check the equipment and energy.
  • the condensed water of this device is preferentially discharged into the closed condensed water recovery system where the first membrane valve is located, provided that the back pressure is less than the condensed water discharge pressure, that is, the pressure detected by the second pressure sensor is lower than that of the first pressure sensor.
  • the membrane valve is opened and the second membrane valve is closed; the condensed water discharge route is: first three-way-first membrane valve-first one-way valve-second three-way-closed condensate water recovery system.
  • the back pressure is high, that is, when the pressure detected by the second pressure sensor is higher than that of the first pressure sensor, that is, the back pressure is high, at this time, the condensate cannot be discharged into the closed condensate recovery system.
  • the plc control module controls the second membrane valve to open, the first membrane valve to close, and the condensed water discharge path: the first three-way - the second membrane valve - the second one-way valve - the normal pressure condensate water tank; it solves the problem of the prior art The problem that the condensate is not discharged in time and the discharge is not smooth will affect the quality of the product.
  • Fig. 1 is the overall structure schematic diagram of the condensed water automatic forced discharge device in the embodiment of the present invention
  • FIG. 2 is a partial structural schematic diagram of the device for automatic forced discharge of condensed water in an embodiment of the present invention.
  • Closed condensate recovery system 10 atmospheric pressure recovery tank 20, pipeline system 30, first pipeline 301, second pipeline 302, third pipeline 303, control module 40, PLC401, valve island 402, temperature sensor 50, membrane valve structure 60, the first membrane valve 601, the second membrane valve 602, the pressure transmitter 70, the steam trap 80, the first pressure sensor 90, the second pressure sensor 100, the first one-way valve 110, the second one-way valve 120, The first positioner 130 , the second positioner 140 , the first valve position sensor 150 , the second valve position sensor 160 .
  • a condensed water automatic forced discharge device based on self-diagnosis technology including:
  • the closed condensate recovery system 10 and the atmospheric pressure recovery tank 20 are connected by a piping system 30, and the piping system 30 includes a first piping 301, a second piping 302 and a third piping 303 that communicate with each other;
  • Control module 40 the control module 40 is a PLC control module 40, and the PLC control module 40 includes but is not limited to PLC401S7-1200.
  • a temperature sensor 50 disposed inside the first pipe 301 and electrically connected to the control module 40, for outputting first temperature information, and the control module 40 for receiving the first temperature information;
  • the pressure transmitter 70 which is arranged inside the first pipeline 301 and is electrically connected to the control module 40, is used for outputting the second temperature information, and the control module 40 receives the second temperature information, so The control module 40 is used to judge whether the first temperature information is less than the second temperature information, and if so, the control module 40 outputs a current signal to control the opening of the membrane valve structure 60;
  • the membrane valve structure 60 includes a first membrane valve 601 and a second membrane valve 602, the first membrane valve 601 is connected in series with the second pipeline 302, and the second membrane valve 602 is connected in series with the third membrane valve 602 Pipe 303; the first membrane valve 601 and the second membrane valve 602 include but are not limited to samson membrane valves.
  • the actual temperature of the steam in the first pipeline 301 is measured by the temperature sensor 50, and the measured temperature is compared with the temperature detected by the pressure transmitter 70.
  • the temperature measured by the temperature sensor 50 is lower than the temperature detected by the pressure transmitter 70, it means that the steam contains condensed water.
  • the output 4-20mA drives the membrane valve structure 60 to open, the opening degree is 0-70%, the steam is forced to discharge, and the condensed water is taken away by the steam until the difference is "4mA";
  • the temperature sensor 50 includes but is not limited to Pt100 temperature sensor 50 .
  • the first pressure sensor 90 and the second pressure sensor 100 are respectively disposed on both sides of the steam trap 80 , and both the first pressure sensor 90 and the second pressure sensor 100 are electrically connected to the control module 40 , for detecting the pressure on both sides of the steam trap 80 and outputting the first pressure information and the second pressure information respectively;
  • the first pressure sensor 90 and the second pressure sensor 100 mainly detect the pressure on both sides of the steam trap 80.
  • the pressure at the outlet of the steam trap 80 (closed condensate recovery system 10) is higher than the pressure of the steam pipeline at the inlet side of the steam trap 80 (The back pressure is too high), indicating that the condensed water accumulated in the steam trap 80 cannot be discharged into the closed condensed water recovery system 10.
  • the PLC control module 40 sends a control signal to open the membrane valve on the side of the atmospheric pressure condensed water recovery system, and the condensed water To achieve normal pressure discharge, the opening time of the membrane valve is controlled by the temperature sensor 50 .
  • the control module 40 is configured to determine the magnitude relationship between the first pressure information and the second pressure information. If the first pressure information is greater than the second pressure information, the control module 40 controls the first pressure information. The membrane valve 601 is opened, the second membrane valve 602 is closed, and the condensate is discharged into the closed condensate recovery system 10. If the first pressure information is less than the second pressure information, the control module 40 The first membrane valve 601 is controlled to be closed, the second membrane valve 602 is opened, and the condensed water is discharged into the atmospheric pressure recovery tank 20 .
  • the steam pipeline will be detected and discharged intelligently, and the condensate water discharge will be realized intelligently and automatically, saving about 800,000 yuan of steam and reducing the consumption of soft water by 1,000 tons per year.
  • the present invention can also do following improvement:
  • the device for automatic forced discharge of condensed water further includes a first check valve 110 and a second check valve 120, the first check valve 110 is connected in series with the second pipeline 302, and the second check valve 110 is connected to the second pipe 302 in series.
  • the direction valve 120 is connected to the third pipeline 303 in series.
  • first membrane valve 601 and the first one-way valve 110 are connected to the second pipeline 302 through flanges
  • the second membrane valve 602 and the second one-way valve 120 are connected to the third pipeline 303 through flanges.
  • the pressure transmitter 70 , the temperature sensor 50 , the first pressure sensor 90 and the second pressure sensor 100 are screwed together with the first pipeline 301 respectively, and the pressure transmitter 70.
  • the temperature sensor 50, the first pressure sensor 90 and the second pressure sensor 100 are inserted into the first pipe 301 to a depth that is 8 to 10 times the diameter of the protection pipe.
  • first pressure sensor 90 and the second pressure sensor 100 are connected to the input end of the control module 40 through several copper wires.
  • the device for automatic forced discharge of condensed water also includes a valve island 402, and the valve island 402, the first membrane valve 601 and the second membrane valve 602 are connected to the control module 40 through a Profibus PA industrial Ethernet cable. communication module.
  • the condensed water automatic forced discharge device further includes a first positioner 130, a second positioner 140, a first valve position sensor 150 and a second valve position sensor 160, the first positioner 130 and the first positioner 130 and the The two positioners 140 are respectively electrically connected to the valve island 402 , the output end of the first positioner 130 is electrically connected to the second membrane valve 602 , and the output end of the second positioner 140 is electrically connected to the second membrane valve 602 .
  • the first membrane valve 601 is electrically connected; the opening degrees of the first membrane valve 601 and the second membrane valve 602 are detected by the first valve position sensor 150 and the second valve position sensor 160 respectively and fed back to the The first locator 130 and the second locator 140 are described.
  • the device for automatic forced discharge of condensed water further includes a timer, and the timer is electrically connected to the control module 40.
  • the control module 40 outputs trigger information, the timer receives the trigger information and starts timing, the timer has a set time, and after the set time is reached, the control module 40 forcibly closes the membrane valve structure 60.
  • the device for automatic forced discharge of condensed water further includes an alarm module, which is electrically connected to the control module 40.
  • the control module 40 When the timer reaches the set time, the control module 40 outputs an alarm. signal, the alarm module receives the alarm signal to alarm.
  • the actual temperature of the steam in the pipeline is measured by the temperature sensor 50, and the measured temperature is compared with the temperature detected by the pressure transmitter 70.
  • the measured temperature is lower than the temperature detected by the pressure transmitter 70, it means that the steam contains condensed water, and the output 4-20mA drive
  • the membrane valve structure 60 is opened, the opening degree is 0-70%, the steam is forced to discharge, and the condensed water is taken away by the steam until the difference is "4mA"; at the same time, when the valve position detector is turned on, the PLC control module 40 control program starts timing, the steam After 10 minutes of discharge, if the difference cannot disappear, the PLC control module 40 forcibly closes the valve and alarms, prompting maintenance personnel to check the equipment and energy.
  • the device is connected to the closed condensate water recovery system 10 through a stainless steel three-way, and the pipeline where the second membrane valve 602 is located is connected to the atmospheric pressure recovery tank 20 through the second one-way valve 120. Valves and other devices are connected to the pipeline through flanges.
  • the pressure transmitter 70, temperature sensor 50, first pressure sensor 90 and second pressure sensor 100 are installed through the embedded threads installed on the tee, and the insertion depth should be at least the protection pipe.
  • the data collected by the first sensor and the second sensor are connected to the A/O input terminal of PLC401 through 3x0.5 multi-strand copper wires; valve island 402, first membrane valve 601, second membrane valve 602 is connected to the PLC401IM153 communication module through the Profibus PA industrial Ethernet cable, and the first valve position sensor 150 and the second valve position sensor 160 are connected to the first positioner 130 and the second positioner 140 through 3x0.5 multi-strand copper wires Terminals, the output end of the valve island 402 is connected to the input end of the positioner through the ⁇ 8 pressure air pipe respectively, and the output end of the positioner is connected to the pressure air input end of the membrane valve through the ⁇ 8 pressure air pipe respectively.
  • the compressed air input end is connected to the input end of the valve island 402 through a ⁇ 10 compressed air pipe.
  • the first pipeline 301 includes a first tee and a second tee, and the condensate automatic forced discharge device is connected to the condensate recovery system through the first tee and the second tee.
  • a method for automatic forced discharge of condensed water based on self-diagnosis technology specifically includes:
  • the actual temperature of the steam is detected by the temperature sensor 50, and the temperature measured by the pressure transmitter 70 and the temperature sensor 50 is compared by the control module 40 to calculate the difference;
  • control module 40 controls the opening of the membrane valve structure 60 according to the difference output current signal
  • control module 40 controls the opening of the membrane valve structure 60 according to the difference output current signal
  • the first pressure sensor 90 and the second pressure sensor 100 detect the pressure on both sides of the steam trap 80 and output the first pressure information and the second pressure information respectively;
  • the control module 40 is used to determine the magnitude relationship between the first pressure information and the second pressure information. If the first pressure information is greater than the second pressure information, the control module 40 controls the first membrane valve 601 to open, and the second membrane valve 602 to open. If the first pressure information is less than the second pressure information, the control module 40 controls the first membrane valve 601 to close, the second membrane valve 602 to open, and the condensate is discharged into the normal pressure recovery system Cans of 20.
  • the main steam valve When used, in the preparation stage of production or during the production process, the main steam valve is opened, and the pressure and temperature in the pipeline are gradually increased. The temperature of the drying equipment is measured and controlled by the pressure transmitter 70 on the wire making line.
  • the position sensor 160 is turned on, the timer triggers and starts timing. After the valve is turned on for 10 minutes, the difference cannot disappear.
  • the PLC control module 40 forcibly closes the membrane valve structure 60 and alarms, prompting maintenance personnel to check the equipment and energy.
  • the condensed water of this device is preferentially discharged into the closed condensed water recovery system 10 where the first membrane valve 601 is located, provided that the back pressure is lower than the condensed water discharge pressure, that is, the pressure detected by the second pressure sensor 100 is lower than that of the first pressure sensor 90, At this time, the first membrane valve 601 is opened and the second membrane valve 602 is closed; the condensate discharge route is: first three-way - first membrane valve 601 - first one-way valve 110 - second three-way - closed condensate recovery system 10.
  • the PLC control module 40 controls the second membrane valve 602 to open, the first membrane valve 601 to close, and the condensate discharge path: the first three-way - the second membrane valve 602 - the second one-way valve 120 - the normal pressure condensate Jug.
  • first and second are only used for descriptive purposes, and should not be understood as indicating or implying relative importance or implying the number of indicated technical features. Thus, features defined as “first”, “second” may expressly or implicitly include one or more of said features.
  • “plurality” means two or more, unless otherwise expressly and specifically defined.
  • the terms “installed”, “connected” and “connected” should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be It is directly connected, or it can be indirectly connected through an intermediate medium, and it can be the internal connection of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

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Abstract

A device and method for automatic forced discharge of condensate water based on a self-diagnosis technique. The device comprises: a closed-type condensate water recovery system (10) and a normal-pressure recovery tank (20) connected to each other by means of a pipe system (30); a steam trap (80), a pressure transmitter (70), a control module (40) and a temperature sensor (50); a first membrane valve (601) and a second membrane valve (602), with the opening degree of a membrane valve structure (60) being controlled by a current signal output by the control module (40); and a first pressure sensor (90) and a second pressure sensor (100), which are used to measure pressure on two sides of the steam trap (80) and respectively output first pressure information and second pressure information. If the first pressure information is larger than the second pressure information, the control module (40) controls the first membrane valve (601) to open and the second membrane valve (602) to close, so that condensate water is discharged into the closed-type condensate water recovery system (10); and if the first pressure information is smaller than the second pressure information, the control module (40) controls the first membrane valve (601) to close and the second membrane valve (602) to open, so that condensate water is discharged into the normal-pressure recovery tank (20). The device solves the problem in the prior art that the quality of the product is affected due to the failure to perform timely and smooth discharge of the condensed water.

Description

一种基于自诊断技术的冷凝水自动强制排放装置及方法A device and method for automatic forced discharge of condensed water based on self-diagnosis technology 技术领域technical field
本发明涉及冷凝水排放技术领域，尤其是涉及一种基于自诊断技术的冷凝水自动强制排放装置及方法。The invention relates to the technical field of condensed water discharge, in particular to a device and method for automatic forced discharge of condensed water based on self-diagnosis technology.
背景技术Background technique
目前，为解决冷凝水排放导致的工艺质量问题，一般采用以下方法。一是：生产前人工排放冷凝水。为消除冷凝水排放不畅对生产的影响，每天生产开始前，需要将管道内、换热器内积存的冷凝水快速排放，一般采用人工手动打开旁通阀排放，由于排放时间、排放量的不确定性，造成蒸汽、能源消耗增加；二是：生产过程中，由于各个冷凝水产生设备的工作压力不同、排放时间不同，造成冷凝水排放混论，引起换热设备效率降低、汽中带水严重造成湿团产生，此时，需要人工打开疏水阀旁通，排放冷凝水；或者将冷凝水旁通阀打开5-10％，保持常开状态，造成能源的极大浪费。At present, in order to solve the process quality problem caused by condensate discharge, the following methods are generally adopted. One: Manually drain condensate before production. In order to eliminate the impact of poor condensate discharge on production, it is necessary to quickly discharge the condensed water accumulated in the pipeline and heat exchanger before the production starts every day. Generally, the bypass valve is manually opened for discharge. Uncertainty, resulting in increased steam and energy consumption; second, in the production process, due to the different working pressure and discharge time of each condensed water generating equipment, resulting in mixed condensed water discharge, resulting in reduced heat exchange equipment efficiency, and steam in the steam. Water seriously causes wet mass. At this time, it is necessary to manually open the bypass valve of the trap to discharge the condensate; or open the bypass valve of the condensate by 5-10% and keep it normally open, resulting in a great waste of energy.
发明内容SUMMARY OF THE INVENTION
本发明的目的在于提供一种基于自诊断技术的冷凝水自动强制排放装置及方法，该装置能够解决现有技术中冷凝水排放不及时、排放不畅影响产品质量的问题。The purpose of the present invention is to provide a condensed water automatic forced discharge device and method based on self-diagnosis technology, which can solve the problems in the prior art that the condensed water is not discharged in time, and the poor discharge affects product quality.
为了实现上述目的，本发明提供如下技术方案：In order to achieve the above object, the present invention provides the following technical solutions:
一种基于自诊断技术的冷凝水自动强制排放装置，包括：An automatic forced discharge device for condensed water based on self-diagnosis technology, comprising:
闭式冷凝水回收***和常压回收罐通过管道***相连接，所述管道***包括相互连通的第一管道、第二管道和第三管道；The closed condensate recovery system and the atmospheric pressure recovery tank are connected through a pipeline system, and the pipeline system includes a first pipeline, a second pipeline and a third pipeline that are communicated with each other;
疏水器，其设于所述第一管道；a steam trap, which is arranged in the first pipeline;
控制模块；control module;
温度传感器，其设于所述第一管道的内部且与所述控制模块电性相连，用于输出第一温度信息，所述控制模块用于接收所述第一温度信息；a temperature sensor, disposed inside the first pipe and electrically connected to the control module, for outputting first temperature information, and the control module for receiving the first temperature information;
薄膜阀结构，其包括第一薄膜阀和第二薄膜阀，所述第一薄膜阀串接于所述第二管道，所述第二薄膜阀串接于所述第三管道；A membrane valve structure, comprising a first membrane valve and a second membrane valve, the first membrane valve is connected in series with the second pipeline, and the second membrane valve is connected in series with the third pipeline;
压力变送器，其设于所述第一管道的内部且与所述控制模块电性相连，用于输出第二温度信息，所述控制模块接收所述第二温度信息，所述控制模块用于判断所述第一温度信息是否小于所述第二温度信息，若是，所述控制模块输出电流信号控制所述薄膜阀结构的开度；a pressure transmitter, which is arranged inside the first pipeline and is electrically connected to the control module for outputting second temperature information, the control module receives the second temperature information, and the control module uses for judging whether the first temperature information is less than the second temperature information, and if so, the control module outputs a current signal to control the opening of the membrane valve structure;
第一压力传感器和第二压力传感器，其分别设于所述疏水器的两侧，所述第一压力传感器和所述第二压力传感器均与所述控制模块电性相连，用于检测所述疏水器两侧的压力并分别输出第一压力信息和第二压力信息；A first pressure sensor and a second pressure sensor, which are respectively arranged on both sides of the steam trap, both of the first pressure sensor and the second pressure sensor are electrically connected to the control module for detecting the pressure on both sides of the steam trap and output first pressure information and second pressure information respectively;
所述控制模块用于判断所述第一压力信息和所述第二压力信息的大小关系，若所述第一压力信息大于所述第二压力信息，所述控制模块控制所述第一薄膜阀打开，所述第二薄膜阀关闭，所述冷凝水排入所述闭式冷凝水回收***，若所述第一压力信息小于所述第二压力信息，所述控制模块控制所述第一薄膜阀关闭，所述第二薄膜阀打开，所述冷凝水排入所述常压回收罐。The control module is used to determine the magnitude relationship between the first pressure information and the second pressure information, and if the first pressure information is greater than the second pressure information, the control module controls the first membrane valve Open, the second membrane valve is closed, the condensed water is discharged into the closed condensed water recovery system, if the first pressure information is less than the second pressure information, the control module controls the first membrane The valve is closed, the second membrane valve is opened, and the condensed water is discharged into the atmospheric pressure recovery tank.
在上述技术方案的基础上，本发明还可以做如下改进：On the basis of above-mentioned technical scheme, the present invention can also do following improvement:
进一步地，所述冷凝水自动强制排放装置还包括第一单向阀和第二单向阀，所述第一单向阀串接于所述第二管道，所述第二单向阀串接于所述第三管道。Further, the automatic forced condensate discharge device further includes a first check valve and a second check valve, the first check valve is connected in series with the second pipeline, and the second check valve is connected in series in the third pipeline.
进一步地，所述第一薄膜阀和所述第一单向阀均与所述第二管道通过法兰连接，所述第二薄膜阀和所述第二单向阀均与所述第三管道通过法兰连接。Further, both the first membrane valve and the first one-way valve are connected with the second pipeline through flanges, and both the second membrane valve and the second one-way valve are connected with the third pipeline Connection by flange.
进一步地，所述压力变送器、所述温度传感器、所述第一压力传感器和所述第二压力传感器分别与所述第一管道相螺合，所述压力变送器、所述温度传感器、所述第一压力传感器和所述第二压力传感器***所述第一管道的深度为保护管直径的8～10倍。Further, the pressure transmitter, the temperature sensor, the first pressure sensor and the second pressure sensor are screwed with the first pipeline respectively, and the pressure transmitter, the temperature sensor and the depth of the first pressure sensor and the second pressure sensor inserted into the first pipeline is 8-10 times the diameter of the protection pipe.
进一步地，所述第一压力传感器和所述第二压力传感器通过若干股铜线接入到所述控制模块的输入端。Further, the first pressure sensor and the second pressure sensor are connected to the input end of the control module through several strands of copper wires.
进一步地，所述冷凝水自动强制排放装置还包括阀岛，所述阀岛、第一薄膜阀和所述第二薄膜阀通过Profibus PA工业以太网电缆接入所述控制模块的通信模块。Further, the device for automatic forced discharge of condensed water further includes a valve island, and the valve island, the first membrane valve and the second membrane valve are connected to the communication module of the control module through a Profibus PA industrial Ethernet cable.
进一步地，所述冷凝水自动强制排放装置还包括第一***、第二***、第一阀门位置传感器和第二阀门位置传感器，所述第一***和所述第二***分别与所述阀岛电性相连，所述第一***的输出端与所述第二薄膜阀电性相连，所述第二***的输出端与所述第一薄膜阀电性相连；所述第一薄膜阀和所述第二薄膜阀的开度分别通过第一阀门位置传感器和所述第二阀门位置传感器检测并对应反馈至所述第一***和所述第二***。Further, the condensed water automatic forced discharge device further comprises a first positioner, a second positioner, a first valve position sensor and a second valve position sensor, the first positioner and the second positioner are respectively connected with The valve island is electrically connected, the output end of the first positioner is electrically connected with the second membrane valve, and the output end of the second positioner is electrically connected with the first membrane valve; the The opening degrees of the first membrane valve and the second membrane valve are detected by the first valve position sensor and the second valve position sensor respectively and fed back to the first positioner and the second positioner accordingly.
进一步地，所述冷凝水自动强制排放装置还包括计时器，所述计时器 与所述控制模块电性相连，所述第一阀门位置检测器和所述第二阀门位置检测器工作时，所述控制模块输出触发信息，所述计时器接收所述触发信息开始计时，所述计时器具有设定时间，到达所述设定时间后，所述控制模块强制关闭所述薄膜阀结构。Further, the device for automatic forced discharge of condensed water further includes a timer, and the timer is electrically connected to the control module. When the first valve position detector and the second valve position detector work, all the The control module outputs trigger information, the timer receives the trigger information and starts timing, the timer has a set time, and when the set time is reached, the control module forcibly closes the membrane valve structure.
进一步地，所述冷凝水自动强制排放装置还包括报警模块，所述报警模块与所述控制模块电性相连，当所述计时器到达所述设定时间后，所述控制模块输出报警信号，所述报警模块接收所述报警信号报警。Further, the automatic forced condensate discharge device further includes an alarm module, the alarm module is electrically connected to the control module, and when the timer reaches the set time, the control module outputs an alarm signal, The alarm module receives the alarm signal to alarm.
一种使用上述装置进行冷凝水自动强制排放的方法，方法具体包括：A method for automatically and forcibly discharging condensed water using the above device, the method specifically comprises:
S101，通过温度传感器检测蒸汽的实际温度，通过控制模块对压力变送器和温度传感器测量的温度进行对比，计算出差值；S101, the actual temperature of the steam is detected by the temperature sensor, and the temperature measured by the pressure transmitter and the temperature sensor is compared by the control module, and the difference is calculated;
S102，控制模块根据差值输出电流信号控制薄膜阀结构的开度；S102, the control module controls the opening of the membrane valve structure according to the difference output current signal;
S103，第一压力传感器和第二压力传感器用于检测疏水器两侧的压力并分别输出第一压力信息和第二压力信息；S103, the first pressure sensor and the second pressure sensor are used to detect the pressure on both sides of the steam trap and output the first pressure information and the second pressure information respectively;
S104，控制模块用于判断第一压力信息和第二压力信息的大小关系，若第一压力信息大于第二压力信息，控制模块控制第一薄膜阀打开，第二薄膜阀关闭，冷凝水排入闭式冷凝水回收***，若第一压力信息小于第二压力信息，控制模块控制第一薄膜阀关闭，第二薄膜阀打开，冷凝水排入常压回收罐。S104, the control module is used to determine the magnitude relationship between the first pressure information and the second pressure information. If the first pressure information is greater than the second pressure information, the control module controls the first membrane valve to open, the second membrane valve to close, and the condensed water to be discharged into the In the closed condensate water recovery system, if the first pressure information is less than the second pressure information, the control module controls the first membrane valve to close, the second membrane valve to open, and the condensate is discharged into the atmospheric pressure recovery tank.
本发明具有如下优点：The present invention has the following advantages:
本发明中的基于自诊断技术的冷凝水自动强制排放装置，通过温度传感器实测管道内蒸汽实际温度，实测温度与压力变送器检测的温度对比，当实测温度低于压力变送器检测温度时，说明蒸汽中含有冷凝水，输出4-20mA驱动薄膜阀结构打开，开度0-70％，强制排放蒸汽，通过蒸汽带走 冷凝水，直至差值为“4mA”；同时阀门位置检测器打开时，PLC控制模块控制程序开始计时，蒸汽排放10分钟后，差值不能消失，PLC控制模块强制关闭阀门，并报警，提示维修人员检查设备及能源。The automatic forced discharge device for condensed water based on the self-diagnosis technology in the present invention measures the actual temperature of the steam in the pipeline through the temperature sensor, and the measured temperature is compared with the temperature detected by the pressure transmitter. When the measured temperature is lower than the temperature detected by the pressure transmitter , indicating that the steam contains condensed water, the output 4-20mA drives the membrane valve structure to open, the opening degree is 0-70%, the steam is forced to discharge, and the condensed water is taken away by the steam until the difference is "4mA"; at the same time, the valve position detector is turned on. At the time, the PLC control module control program starts timing, after 10 minutes of steam discharge, the difference cannot disappear, the PLC control module forcibly closes the valve, and alarms, prompting the maintenance personnel to check the equipment and energy.
此装置冷凝水优先排入第一薄膜阀所在的闭式冷凝水回收***，前提是背压小于冷凝水排放压力，即：第二压力传感器检测的压力低于第一压力传感器，此时第一薄膜阀打开、第二薄膜阀关闭；冷凝水排放路线为：第一三通-第一薄膜阀-第一单向阀-第二三通-闭式冷凝水回收***。但是当背压高时，即当第二压力传感器检测到的压力高于第一压力传感器时，也就是背压高，此时，冷凝水使不能排入闭式冷凝水回收***的，此时plc控制模块控制第二薄膜阀打开、第一薄膜阀关闭，冷凝水排放通路：第一三通-第二薄膜阀-第二单向阀-常压冷凝水积水罐；解决了现有技术中冷凝水排放不及时、排放不畅影响产品质量的问题。The condensed water of this device is preferentially discharged into the closed condensed water recovery system where the first membrane valve is located, provided that the back pressure is less than the condensed water discharge pressure, that is, the pressure detected by the second pressure sensor is lower than that of the first pressure sensor. The membrane valve is opened and the second membrane valve is closed; the condensed water discharge route is: first three-way-first membrane valve-first one-way valve-second three-way-closed condensate water recovery system. However, when the back pressure is high, that is, when the pressure detected by the second pressure sensor is higher than that of the first pressure sensor, that is, the back pressure is high, at this time, the condensate cannot be discharged into the closed condensate recovery system. The plc control module controls the second membrane valve to open, the first membrane valve to close, and the condensed water discharge path: the first three-way - the second membrane valve - the second one-way valve - the normal pressure condensate water tank; it solves the problem of the prior art The problem that the condensate is not discharged in time and the discharge is not smooth will affect the quality of the product.
附图说明Description of drawings
为了更清楚地说明本发明具体实施方式或现有技术中的技术方案，下面将对具体实施方式或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施方式，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to illustrate the specific embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the specific embodiments or the prior art. Obviously, the accompanying drawings in the following description The drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.
图1为本发明实施例中冷凝水自动强制排放装置的整体结构示意图；Fig. 1 is the overall structure schematic diagram of the condensed water automatic forced discharge device in the embodiment of the present invention;
[根据细则91更正 25.04.2022]　
图2为本发明实施例中冷凝水自动强制排放装置的部分结构示意图。[Corrected 25.04.2022 under Rule 91]
FIG. 2 is a partial structural schematic diagram of the device for automatic forced discharge of condensed water in an embodiment of the present invention.
[根据细则91更正 25.04.2022]　
[Corrected 25.04.2022 under Rule 91]
附图标记说明：Description of reference numbers:
闭式冷凝水回收***10，常压回收罐20，管道***30，第一管道301，第二管道302，第三管道303，控制模块40，PLC401，阀岛402，温度传感 器50，薄膜阀结构60，第一薄膜阀601，第二薄膜阀602，压力变送器70，疏水器80，第一压力传感器90，第二压力传感器100，第一单向阀110，第二单向阀120，第一***130，第二***140，第一阀门位置传感器150，第二阀门位置传感器160。Closed condensate recovery system 10, atmospheric pressure recovery tank 20, pipeline system 30, first pipeline 301, second pipeline 302, third pipeline 303, control module 40, PLC401, valve island 402, temperature sensor 50, membrane valve structure 60, the first membrane valve 601, the second membrane valve 602, the pressure transmitter 70, the steam trap 80, the first pressure sensor 90, the second pressure sensor 100, the first one-way valve 110, the second one-way valve 120, The first positioner 130 , the second positioner 140 , the first valve position sensor 150 , the second valve position sensor 160 .
具体实施方式Detailed ways
下面将结合实施例对本发明的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[根据细则91更正 25.04.2022]　
如图1-2所示，一种基于自诊断技术的冷凝水自动强制排放装置，包括：[Corrected 25.04.2022 under Rule 91]
As shown in Figure 1-2, a condensed water automatic forced discharge device based on self-diagnosis technology, including:
闭式冷凝水回收***10和常压回收罐20通过管道***30相连接，所述管道***30包括相互连通的第一管道301、第二管道302和第三管道303；The closed condensate recovery system 10 and the atmospheric pressure recovery tank 20 are connected by a piping system 30, and the piping system 30 includes a first piping 301, a second piping 302 and a third piping 303 that communicate with each other;
疏水器80，其设于所述第一管道301；a steam trap 80, which is arranged in the first pipe 301;
控制模块40；该控制模块40为PLC控制模块40，该PLC控制模块40包括但不限于PLC401S7-1200。 Control module 40; the control module 40 is a PLC control module 40, and the PLC control module 40 includes but is not limited to PLC401S7-1200.
温度传感器50，其设于所述第一管道301的内部且与所述控制模块40电性相连，用于输出第一温度信息，所述控制模块40用于接收所述第一温度信息；a temperature sensor 50, disposed inside the first pipe 301 and electrically connected to the control module 40, for outputting first temperature information, and the control module 40 for receiving the first temperature information;
压力变送器70，其设于所述第一管道301的内部且与所述控制模块40电性相连，用于输出第二温度信息，所述控制模块40接收所述第二温度信息，所述控制模块40用于判断所述第一温度信息是否小于所述第二温度信息，若是，所述控制模块40输出电流信号控制所述薄膜阀结构60的开度；The pressure transmitter 70, which is arranged inside the first pipeline 301 and is electrically connected to the control module 40, is used for outputting the second temperature information, and the control module 40 receives the second temperature information, so The control module 40 is used to judge whether the first temperature information is less than the second temperature information, and if so, the control module 40 outputs a current signal to control the opening of the membrane valve structure 60;
薄膜阀结构60，其包括第一薄膜阀601和第二薄膜阀602，所述第一 薄膜阀601串接于所述第二管道302，所述第二薄膜阀602串接于所述第三管道303；该第一薄膜阀601和第二薄膜阀602包括但不限于samson薄膜阀。The membrane valve structure 60 includes a first membrane valve 601 and a second membrane valve 602, the first membrane valve 601 is connected in series with the second pipeline 302, and the second membrane valve 602 is connected in series with the third membrane valve 602 Pipe 303; the first membrane valve 601 and the second membrane valve 602 include but are not limited to samson membrane valves.
通过温度传感器50实测第一管道301内蒸汽实际温度，实测温度与压力变送器70检测的温度对比，当温度传感器50实测温度低于压力变送器70检测温度时，说明蒸汽中含有冷凝水，输出4-20mA驱动薄膜阀结构60打开，开度0-70％，强制排放蒸汽，通过蒸汽带走冷凝水，直至差值为“4mA”；该温度传感器50包括但不限于Pt100温度传感器50。The actual temperature of the steam in the first pipeline 301 is measured by the temperature sensor 50, and the measured temperature is compared with the temperature detected by the pressure transmitter 70. When the temperature measured by the temperature sensor 50 is lower than the temperature detected by the pressure transmitter 70, it means that the steam contains condensed water. , the output 4-20mA drives the membrane valve structure 60 to open, the opening degree is 0-70%, the steam is forced to discharge, and the condensed water is taken away by the steam until the difference is "4mA"; the temperature sensor 50 includes but is not limited to Pt100 temperature sensor 50 .
第一压力传感器90和第二压力传感器100，其分别设于所述疏水器80的两侧，所述第一压力传感器90和所述第二压力传感器100均与所述控制模块40电性相连，用于检测所述疏水器80两侧的压力并分别输出第一压力信息和第二压力信息；The first pressure sensor 90 and the second pressure sensor 100 are respectively disposed on both sides of the steam trap 80 , and both the first pressure sensor 90 and the second pressure sensor 100 are electrically connected to the control module 40 , for detecting the pressure on both sides of the steam trap 80 and outputting the first pressure information and the second pressure information respectively;
第一压力传感器90和第二压力传感器100主要检测疏水器80两侧的压力，当疏水器80出口(闭式冷凝水回收***10)的压力高于疏水器80进口侧的蒸汽管道的压力时(背压过高)，说明疏水器80内积聚的冷凝水无法排入闭式冷凝水回收***10，此时PLC控制模块40发出控制信号，打开常压冷凝水回收***侧薄膜阀，冷凝水实现常压排放，薄膜阀打开时间由温度传感器50控制。The first pressure sensor 90 and the second pressure sensor 100 mainly detect the pressure on both sides of the steam trap 80. When the pressure at the outlet of the steam trap 80 (closed condensate recovery system 10) is higher than the pressure of the steam pipeline at the inlet side of the steam trap 80 (The back pressure is too high), indicating that the condensed water accumulated in the steam trap 80 cannot be discharged into the closed condensed water recovery system 10. At this time, the PLC control module 40 sends a control signal to open the membrane valve on the side of the atmospheric pressure condensed water recovery system, and the condensed water To achieve normal pressure discharge, the opening time of the membrane valve is controlled by the temperature sensor 50 .
所述控制模块40用于判断所述第一压力信息和所述第二压力信息的大小关系，若所述第一压力信息大于所述第二压力信息，所述控制模块40控制所述第一薄膜阀601打开，所述第二薄膜阀602关闭，所述冷凝水排入所述闭式冷凝水回收***10，若所述第一压力信息小于所述第二压力信息，所述控制模块40控制所述第一薄膜阀601关闭，所述第二薄膜阀602打开，所述冷凝水排入所述常压回收罐20。The control module 40 is configured to determine the magnitude relationship between the first pressure information and the second pressure information. If the first pressure information is greater than the second pressure information, the control module 40 controls the first pressure information. The membrane valve 601 is opened, the second membrane valve 602 is closed, and the condensate is discharged into the closed condensate recovery system 10. If the first pressure information is less than the second pressure information, the control module 40 The first membrane valve 601 is controlled to be closed, the second membrane valve 602 is opened, and the condensed water is discharged into the atmospheric pressure recovery tank 20 .
现场改造完成后，蒸汽管道实现检测、智能排放，冷凝水排放实现智能化、自动化，每年节约蒸汽约80万元，减低软水消耗1000吨。After the on-site renovation is completed, the steam pipeline will be detected and discharged intelligently, and the condensate water discharge will be realized intelligently and automatically, saving about 800,000 yuan of steam and reducing the consumption of soft water by 1,000 tons per year.
在上述技术方案的基础上，本发明还可以做如下改进：On the basis of above-mentioned technical scheme, the present invention can also do following improvement:
进一步地，所述冷凝水自动强制排放装置还包括第一单向阀110和第二单向阀120，所述第一单向阀110串接于所述第二管道302，所述第二单向阀120串接于所述第三管道303。Further, the device for automatic forced discharge of condensed water further includes a first check valve 110 and a second check valve 120, the first check valve 110 is connected in series with the second pipeline 302, and the second check valve 110 is connected to the second pipe 302 in series. The direction valve 120 is connected to the third pipeline 303 in series.
进一步地，所述第一薄膜阀601和第一单向阀110均与第二管道302通过法兰连接，第二薄膜阀602和第二单向阀120与第三管道303通过法兰连接。Further, the first membrane valve 601 and the first one-way valve 110 are connected to the second pipeline 302 through flanges, and the second membrane valve 602 and the second one-way valve 120 are connected to the third pipeline 303 through flanges.
进一步地，所述压力变送器70、所述温度传感器50、所述第一压力传感器90和所述第二压力传感器100分别与所述第一管道301相螺合，所述压力变送器70、所述温度传感器50、所述第一压力传感器90和所述第二压力传感器100***所述第一管道301的深度为保护管直径的8～10倍。Further, the pressure transmitter 70 , the temperature sensor 50 , the first pressure sensor 90 and the second pressure sensor 100 are screwed together with the first pipeline 301 respectively, and the pressure transmitter 70. The temperature sensor 50, the first pressure sensor 90 and the second pressure sensor 100 are inserted into the first pipe 301 to a depth that is 8 to 10 times the diameter of the protection pipe.
进一步地，所述第一压力传感器90和所述第二压力传感器100通过若干股铜线接入到所述控制模块40的输入端。Further, the first pressure sensor 90 and the second pressure sensor 100 are connected to the input end of the control module 40 through several copper wires.
进一步地，所述冷凝水自动强制排放装置还包括阀岛402，所述阀岛402、第一薄膜阀601和所述第二薄膜阀602通过Profibus PA工业以太网电缆接入所述控制模块40的通信模块。Further, the device for automatic forced discharge of condensed water also includes a valve island 402, and the valve island 402, the first membrane valve 601 and the second membrane valve 602 are connected to the control module 40 through a Profibus PA industrial Ethernet cable. communication module.
进一步地，所述冷凝水自动强制排放装置还包括第一***130、第二***140、第一阀门位置传感器150和第二阀门位置传感器160，所述第一***130和所述第二***140分别与所述阀岛402电性相连，所述第一***130的输出端与所述第二薄膜阀602电性相连，所述第二***140的输出端与所述第一薄膜阀601电性相连；所述第一薄膜阀601和所述第二薄膜阀602的开度分别通过第一阀门位置传感器150和所述第二 阀门位置传感器160检测并对应反馈至所述第一***130和所述第二***140。Further, the condensed water automatic forced discharge device further includes a first positioner 130, a second positioner 140, a first valve position sensor 150 and a second valve position sensor 160, the first positioner 130 and the first positioner 130 and the The two positioners 140 are respectively electrically connected to the valve island 402 , the output end of the first positioner 130 is electrically connected to the second membrane valve 602 , and the output end of the second positioner 140 is electrically connected to the second membrane valve 602 . The first membrane valve 601 is electrically connected; the opening degrees of the first membrane valve 601 and the second membrane valve 602 are detected by the first valve position sensor 150 and the second valve position sensor 160 respectively and fed back to the The first locator 130 and the second locator 140 are described.
进一步地，所述冷凝水自动强制排放装置还包括计时器，所述计时器与所述控制模块40电性相连，所述第一阀门位置检测器和所述第二阀门位置检测器工作时，所述控制模块40输出触发信息，所述计时器接收所述触发信息开始计时，所述计时器具有设定时间，到达所述设定时间后，所述控制模块40强制关闭所述薄膜阀结构60。Further, the device for automatic forced discharge of condensed water further includes a timer, and the timer is electrically connected to the control module 40. When the first valve position detector and the second valve position detector work, The control module 40 outputs trigger information, the timer receives the trigger information and starts timing, the timer has a set time, and after the set time is reached, the control module 40 forcibly closes the membrane valve structure 60.
进一步地，所述冷凝水自动强制排放装置还包括报警模块，所述报警模块与所述控制模块40电性相连，当所述计时器到达所述设定时间后，所述控制模块40输出报警信号，所述报警模块接收所述报警信号报警。Further, the device for automatic forced discharge of condensed water further includes an alarm module, which is electrically connected to the control module 40. When the timer reaches the set time, the control module 40 outputs an alarm. signal, the alarm module receives the alarm signal to alarm.
通过温度传感器50实测管道内蒸汽实际温度，实测温度与压力变送器70检测的温度对比，当实测温度低于压力变送器70检测温度时，说明蒸汽中含有冷凝水，输出4-20mA驱动薄膜阀结构60打开，开度0-70％，强制排放蒸汽，通过蒸汽带走冷凝水，直至差值为“4mA”；同时阀门位置检测器打开时，PLC控制模块40控制程序开始计时，蒸汽排放10分钟后，差值不能消失，PLC控制模块40强制关闭阀门，并报警，提示维修人员检查设备及能源。The actual temperature of the steam in the pipeline is measured by the temperature sensor 50, and the measured temperature is compared with the temperature detected by the pressure transmitter 70. When the measured temperature is lower than the temperature detected by the pressure transmitter 70, it means that the steam contains condensed water, and the output 4-20mA drive The membrane valve structure 60 is opened, the opening degree is 0-70%, the steam is forced to discharge, and the condensed water is taken away by the steam until the difference is "4mA"; at the same time, when the valve position detector is turned on, the PLC control module 40 control program starts timing, the steam After 10 minutes of discharge, if the difference cannot disappear, the PLC control module 40 forcibly closes the valve and alarms, prompting maintenance personnel to check the equipment and energy.
该装置通过不锈钢三通接入到闭式冷凝水回收***10中，第二薄膜阀602所在的管道通过第二单向阀120接入到常压回收罐20，装置中的薄膜阀、单向阀等器件与管道通过法兰连接，压力变送器70、温度传感器50、第一压力传感器90和第二压力传感器100通过三通上安装的内嵌螺纹安装，***的深度至少应为保护管直径的8～10倍，第一传感器和第二传感器采集的数据通过3x0.5多股铜线接入到PLC401的A/O输入端子；阀岛402、第一薄膜阀601、第二薄膜阀602通过Profibus PA工业以太网电缆接 入PLC401IM153通信模块，第一阀门位置传感器150和第二阀门位置传感器160通过3x0.5多股铜线接入到第一***130和第二***140的接线端子，阀岛402输出端分别通过Φ8压空管接到***的输入端，***的输出端在分别通过Φ8压空管接入薄膜阀的压空输入端。压空输入端通过Φ10压空管接入到阀岛402的输入端。The device is connected to the closed condensate water recovery system 10 through a stainless steel three-way, and the pipeline where the second membrane valve 602 is located is connected to the atmospheric pressure recovery tank 20 through the second one-way valve 120. Valves and other devices are connected to the pipeline through flanges. The pressure transmitter 70, temperature sensor 50, first pressure sensor 90 and second pressure sensor 100 are installed through the embedded threads installed on the tee, and the insertion depth should be at least the protection pipe. 8 to 10 times the diameter, the data collected by the first sensor and the second sensor are connected to the A/O input terminal of PLC401 through 3x0.5 multi-strand copper wires; valve island 402, first membrane valve 601, second membrane valve 602 is connected to the PLC401IM153 communication module through the Profibus PA industrial Ethernet cable, and the first valve position sensor 150 and the second valve position sensor 160 are connected to the first positioner 130 and the second positioner 140 through 3x0.5 multi-strand copper wires Terminals, the output end of the valve island 402 is connected to the input end of the positioner through the Φ8 pressure air pipe respectively, and the output end of the positioner is connected to the pressure air input end of the membrane valve through the Φ8 pressure air pipe respectively. The compressed air input end is connected to the input end of the valve island 402 through a Φ10 compressed air pipe.
第一管道301包括第一三通和第二三通，该冷凝水自动强制排放装置通过第一三通和第二三通连接到冷凝水回收***中。The first pipeline 301 includes a first tee and a second tee, and the condensate automatic forced discharge device is connected to the condensate recovery system through the first tee and the second tee.
一种基于自诊断技术的冷凝水自动强制排放方法，方法具体包括：A method for automatic forced discharge of condensed water based on self-diagnosis technology, the method specifically includes:
S101，通过控制模块40对压力变送器70和温度传感器50测量的温度进行对比；S101, compare the temperature measured by the pressure transmitter 70 and the temperature sensor 50 through the control module 40;
本步骤中，通过温度传感器50检测蒸汽的实际温度，通过控制模块40对压力变送器70和温度传感器50测量的温度进行对比，计算出差值；In this step, the actual temperature of the steam is detected by the temperature sensor 50, and the temperature measured by the pressure transmitter 70 and the temperature sensor 50 is compared by the control module 40 to calculate the difference;
S102，控制模块40根据差值输出电流信号控制薄膜阀结构60的开度；S102, the control module 40 controls the opening of the membrane valve structure 60 according to the difference output current signal;
本步骤中，控制模块40根据差值输出电流信号控制薄膜阀结构60的开度；In this step, the control module 40 controls the opening of the membrane valve structure 60 according to the difference output current signal;
S103，检测疏水器80两侧的压力；S103, detecting the pressure on both sides of the steam trap 80;
本步骤中，第一压力传感器90和第二压力传感器100检测疏水器80两侧的压力并分别输出第一压力信息和第二压力信息；In this step, the first pressure sensor 90 and the second pressure sensor 100 detect the pressure on both sides of the steam trap 80 and output the first pressure information and the second pressure information respectively;
S104，通过控制模块40控制第一薄膜阀601和第二薄膜阀602的状态；S104, control the state of the first membrane valve 601 and the second membrane valve 602 through the control module 40;
本步骤中，控制模块40用于判断第一压力信息和第二压力信息的大小关系，若第一压力信息大于第二压力信息，控制模块40控制第一薄膜阀601打开，第二薄膜阀602关闭，冷凝水排入闭式冷凝水回收***10，若第一压力信息小于第二压力信息，控制模块40控制第一薄膜阀601关闭，第二 薄膜阀602打开，冷凝水排入常压回收罐20。In this step, the control module 40 is used to determine the magnitude relationship between the first pressure information and the second pressure information. If the first pressure information is greater than the second pressure information, the control module 40 controls the first membrane valve 601 to open, and the second membrane valve 602 to open. If the first pressure information is less than the second pressure information, the control module 40 controls the first membrane valve 601 to close, the second membrane valve 602 to open, and the condensate is discharged into the normal pressure recovery system Cans of 20.
该基于自诊断技术的冷凝水自动强制排放装置使用过程如下：The use process of the condensed water automatic forced discharge device based on self-diagnosis technology is as follows:
使用时，在生产的准备阶段或生产过程中，总蒸汽阀门打开，管道内压力和温度逐渐增加。制丝线上采用压力变送器70测量、控制干燥设备的温度，原理是利用饱和蒸汽压力—温度对应关系式来测量温度并通过控制供汽的阀门开度调整压力，达到控制温度的目的。When used, in the preparation stage of production or during the production process, the main steam valve is opened, and the pressure and temperature in the pipeline are gradually increased. The temperature of the drying equipment is measured and controlled by the pressure transmitter 70 on the wire making line.
温度传感器50检测的蒸汽的实际温度，通过PLC控制模块40，对压力变送器70和温度传感器50测量的温度进行对比，计算出差值，此差值转换为输出4-20mA驱动薄膜阀结构60打开，薄膜阀结构60的开度通过第一阀门位置传感器150和第二阀门位置传感器160检测并反馈至第一***130和第二***140，第一阀门位置传感器150和第二阀门位置传感器160打开时，计时器触发并开始计时，阀门打开10分钟后，差值不能消失，PLC控制模块40强制关闭薄膜阀结构60，并报警，提示维修人员检查设备及能源。The actual temperature of the steam detected by the temperature sensor 50, through the PLC control module 40, compares the temperature measured by the pressure transmitter 70 and the temperature sensor 50, and calculates the difference, which is converted into an output 4-20mA drive membrane valve structure 60 is opened, the opening of the membrane valve structure 60 is detected by the first valve position sensor 150 and the second valve position sensor 160 and fed back to the first positioner 130 and the second positioner 140, the first valve position sensor 150 and the second valve When the position sensor 160 is turned on, the timer triggers and starts timing. After the valve is turned on for 10 minutes, the difference cannot disappear. The PLC control module 40 forcibly closes the membrane valve structure 60 and alarms, prompting maintenance personnel to check the equipment and energy.
此装置冷凝水优先排入第一薄膜阀601所在的闭式冷凝水回收***10，前提是背压小于冷凝水排放压力，即：第二压力传感器100检测的压力低于第一压力传感器90，此时第一薄膜阀601打开、第二薄膜阀602关闭；冷凝水排放路线为：第一三通-第一薄膜阀601-第一单向阀110-第二三通-闭式冷凝水回收***10。但是当背压高时，即当第二压力传感器100检测到的压力高于第一压力传感器90时，也就是背压高，此时，冷凝水使不能排入闭式冷凝水回收***10的，此时PLC控制模块40控制第二薄膜阀602打开、第一薄膜阀601关闭，冷凝水排放通路：第一三通-第二薄膜阀602-第二单向阀120-常压冷凝水积水罐。The condensed water of this device is preferentially discharged into the closed condensed water recovery system 10 where the first membrane valve 601 is located, provided that the back pressure is lower than the condensed water discharge pressure, that is, the pressure detected by the second pressure sensor 100 is lower than that of the first pressure sensor 90, At this time, the first membrane valve 601 is opened and the second membrane valve 602 is closed; the condensate discharge route is: first three-way - first membrane valve 601 - first one-way valve 110 - second three-way - closed condensate recovery system 10. However, when the back pressure is high, that is, when the pressure detected by the second pressure sensor 100 is higher than that of the first pressure sensor 90, that is, the back pressure is high, at this time, the condensate cannot be discharged into the closed condensate recovery system 10. At this time, the PLC control module 40 controls the second membrane valve 602 to open, the first membrane valve 601 to close, and the condensate discharge path: the first three-way - the second membrane valve 602 - the second one-way valve 120 - the normal pressure condensate Jug.
在本发明的描述中，需要理解的是，术语"中心"、"纵向"、"横向"、"长度"、"宽度"、"厚度"、"上"、"下"、"前"、"后"、"左"、"右"、"竖直"、"水平"、"顶"、"底"、"内"、"外"、"顺时针"、"逆时针"等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "top", "bottom", "front", " Or The positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it should not be construed as a limitation of the present invention.
此外，术语"第一"、"第二"仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有"第一"、"第二"的特征可以明示或者隐含地包括或者更多个所述特征。在本发明的描述中，"多个"的含义是两个或两个以上，除非另有明确具体的限定。此外，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be understood as indicating or implying relative importance or implying the number of indicated technical features. Thus, features defined as "first", "second" may expressly or implicitly include one or more of said features. In the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined. In addition, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be It is directly connected, or it can be indirectly connected through an intermediate medium, and it can be the internal connection of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.
最后应说明的是：以上各实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述各实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features thereof can be equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present invention. scope.

Claims (10)

  1. 一种基于自诊断技术的冷凝水自动强制排放装置，其特征在于，包括：An automatic forced discharge device for condensed water based on self-diagnosis technology, characterized in that it includes:
    闭式冷凝水回收***和常压回收罐通过管道***相连接，所述管道***包括相互连通的第一管道、第二管道和第三管道；The closed condensate recovery system and the atmospheric pressure recovery tank are connected through a pipeline system, and the pipeline system includes a first pipeline, a second pipeline and a third pipeline that are communicated with each other;
    疏水器，其设于所述第一管道；a steam trap, which is arranged in the first pipeline;
    控制模块；control module;
    温度传感器，其设于所述第一管道的内部且与所述控制模块电性相连，用于输出第一温度信息，所述控制模块用于接收所述第一温度信息；a temperature sensor, disposed inside the first pipe and electrically connected to the control module, for outputting first temperature information, and the control module for receiving the first temperature information;
    薄膜阀结构，其包括第一薄膜阀和第二薄膜阀，所述第一薄膜阀串接于所述第二管道，所述第二薄膜阀串接于所述第三管道；A membrane valve structure, comprising a first membrane valve and a second membrane valve, the first membrane valve is connected in series with the second pipeline, and the second membrane valve is connected in series with the third pipeline;
    压力变送器，其设于所述第一管道的内部且与所述控制模块电性相连，用于输出第二温度信息，所述控制模块接收所述第二温度信息，所述控制模块用于判断所述第一温度信息是否小于所述第二温度信息，若是，所述控制模块输出电流信号控制所述薄膜阀结构的开度；a pressure transmitter, which is arranged inside the first pipeline and is electrically connected to the control module for outputting second temperature information, the control module receives the second temperature information, and the control module uses for judging whether the first temperature information is less than the second temperature information, and if so, the control module outputs a current signal to control the opening of the membrane valve structure;
    第一压力传感器和第二压力传感器，其分别设于所述疏水器的两侧，所述第一压力传感器和所述第二压力传感器均与所述控制模块电性相连，用于检测所述疏水器两侧的压力并分别输出第一压力信息和第二压力信息；A first pressure sensor and a second pressure sensor, which are respectively arranged on both sides of the steam trap, both of the first pressure sensor and the second pressure sensor are electrically connected to the control module for detecting the pressure on both sides of the steam trap and output first pressure information and second pressure information respectively;
    所述控制模块用于判断所述第一压力信息和所述第二压力信息的大小关系，若所述第一压力信息大于所述第二压力信息，所述控制模块控制所述第一薄膜阀打开，所述第二薄膜阀关闭，所述冷凝水排入所述闭式冷凝水回收***，若所述第一压力信息小于所述第二压力信息，所述控制模块 控制所述第一薄膜阀关闭，所述第二薄膜阀打开，所述冷凝水排入所述常压回收罐。The control module is used to determine the magnitude relationship between the first pressure information and the second pressure information, and if the first pressure information is greater than the second pressure information, the control module controls the first membrane valve Open, the second membrane valve is closed, the condensed water is discharged into the closed condensed water recovery system, if the first pressure information is less than the second pressure information, the control module controls the first membrane The valve is closed, the second membrane valve is opened, and the condensed water is discharged into the atmospheric pressure recovery tank.
  2. 根据权利要求1所述的基于自诊断技术的冷凝水自动强制排放装置，其特征在于，所述冷凝水自动强制排放装置还包括第一单向阀和第二单向阀，所述第一单向阀串接于所述第二管道，所述第二单向阀串接于所述第三管道。The condensed water automatic forced discharge device based on self-diagnosis technology according to claim 1, wherein the condensed water automatic forced discharge device further comprises a first one-way valve and a second one-way valve, the first one-way valve The direction valve is connected in series with the second pipeline, and the second one-way valve is connected in series with the third pipeline.
  3. 根据权利要求2所述的基于自诊断技术的冷凝水自动强制排放装置，其特征在于，所述第一薄膜阀和所述第一单向阀均与所述第二管道通过法兰连接，所述第二薄膜阀和所述第二单向阀均与所述第三管道通过法兰连接。The device for automatic forced condensate discharge based on self-diagnosis technology according to claim 2, wherein the first membrane valve and the first one-way valve are connected with the second pipeline through flanges, so Both the second membrane valve and the second one-way valve are connected with the third pipeline through flanges.
  4. 根据权利要求1所述的基于自诊断技术的冷凝水自动强制排放装置，其特征在于，所述压力变送器、所述温度传感器、所述第一压力传感器和所述第二压力传感器分别与所述第一管道相螺合，所述压力变送器、所述温度传感器、所述第一压力传感器和所述第二压力传感器***所述第一管道的深度为保护管直径的8～10倍。The condensed water automatic forced discharge device based on self-diagnosis technology according to claim 1, wherein the pressure transmitter, the temperature sensor, the first pressure sensor and the second pressure sensor are respectively connected with The first pipe is screwed together, and the pressure transmitter, the temperature sensor, the first pressure sensor and the second pressure sensor are inserted into the first pipe to a depth of 8 to 10 times the diameter of the protection pipe. times.
  5. 根据权利要求1所述的基于自诊断技术的冷凝水自动强制排放装置，其特征在于，所述第一压力传感器和所述第二压力传感器通过若干股铜线接入到所述控制模块的输入端。The condensed water automatic forced discharge device based on self-diagnosis technology according to claim 1, wherein the first pressure sensor and the second pressure sensor are connected to the input of the control module through several strands of copper wires end.
  6. 根据权利要求1所述的基于自诊断技术的冷凝水自动强制排放装置，其特征在于，所述冷凝水自动强制排放装置还包括阀岛，所述阀岛、第一薄膜阀和所述第二薄膜阀通过Profibus PA工业以太网电缆接入所述控制模块的通信模块。The condensed water automatic forced discharge device based on self-diagnosis technology according to claim 1, wherein the condensed water automatic forced discharge device further comprises a valve island, the valve island, the first membrane valve and the second The membrane valve is connected to the communication module of the control module through the Profibus PA industrial Ethernet cable.
  7. 根据权利要求6所述的基于自诊断技术的冷凝水自动强制排放装置，其特征在于，所述冷凝水自动强制排放装置还包括第一***、第二定位 器、第一阀门位置传感器和第二阀门位置传感器，所述第一***和所述第二***分别与所述阀岛电性相连，所述第一***的输出端与所述第二薄膜阀电性相连，所述第二***的输出端与所述第一薄膜阀电性相连；所述第一薄膜阀和所述第二薄膜阀的开度分别通过第一阀门位置传感器和所述第二阀门位置传感器检测并对应反馈至所述第一***和所述第二***。The condensed water automatic forced discharge device based on the self-diagnosis technology according to claim 6, wherein the condensed water automatic forced discharge device further comprises a first positioner, a second positioner, a first valve position sensor and a first positioner. Two valve position sensors, the first positioner and the second positioner are respectively electrically connected to the valve island, the output end of the first positioner is electrically connected to the second membrane valve, the The output end of the second positioner is electrically connected to the first membrane valve; the opening degrees of the first membrane valve and the second membrane valve are detected by the first valve position sensor and the second valve position sensor respectively And corresponding feedback to the first positioner and the second positioner.
  8. 根据权利要求7所述的基于自诊断技术的冷凝水自动强制排放装置，其特征在于，所述自动强制排放装置还包括计时器，所述计时器与所述控制模块电性相连，所述第一阀门位置检测器和所述第二阀门位置检测器工作时，所述控制模块输出触发信息，所述计时器接收所述触发信息开始计时，所述计时器具有设定时间，到达所述设定时间后，所述控制模块强制关闭所述薄膜阀结构。The automatic forced condensate discharge device based on self-diagnosis technology according to claim 7, wherein the automatic forced discharge device further comprises a timer, the timer is electrically connected to the control module, and the first When a valve position detector and the second valve position detector are working, the control module outputs trigger information, the timer receives the trigger information and starts timing, and the timer has a set time, and when it reaches the set time After a predetermined time, the control module forcibly closes the membrane valve structure.
  9. 根据权利要求8所述的基于自诊断技术的冷凝水自动强制排放装置，其特征在于，所述冷凝水自动强制排放装置还包括报警模块，所述报警模块与所述控制模块电性相连，当所述计时器到达所述设定时间后，所述控制模块输出报警信号，所述报警模块接收所述报警信号报警。The automatic forced condensate discharge device based on self-diagnosis technology according to claim 8, wherein the automatic forced condensate discharge device further comprises an alarm module, the alarm module is electrically connected to the control module, and when After the timer reaches the set time, the control module outputs an alarm signal, and the alarm module receives the alarm signal to give an alarm.
  10. 一种使用权利要求1-9中任一项所述的基于自诊断技术的冷凝水自动强制排放装置进行冷凝水自动强制排放的方法，其特征在于，方法具体包括：A method for automatically and forcibly discharging condensed water using the self-diagnosing technology-based automatic forced condensing water discharging device according to any one of claims 1-9, wherein the method specifically comprises:
    S101，通过温度传感器检测蒸汽的实际温度，通过控制模块对压力变送器和温度传感器测量的温度进行对比，计算出差值；S101, the actual temperature of the steam is detected by the temperature sensor, and the temperature measured by the pressure transmitter and the temperature sensor is compared by the control module, and the difference is calculated;
    S102，控制模块根据差值输出电流信号控制薄膜阀结构的开度；S102, the control module controls the opening of the membrane valve structure according to the difference output current signal;
    S103，第一压力传感器和第二压力传感器用于检测疏水器两侧的压力并分别输出第一压力信息和第二压力信息；S103, the first pressure sensor and the second pressure sensor are used to detect the pressure on both sides of the steam trap and output the first pressure information and the second pressure information respectively;
    S104，控制模块用于判断第一压力信息和第二压力信息的大小关系，若第一压力信息大于第二压力信息，控制模块控制第一薄膜阀打开，第二薄膜阀关闭，冷凝水排入闭式冷凝水回收***，若第一压力信息小于第二压力信息，控制模块控制第一薄膜阀关闭，第二薄膜阀打开，冷凝水排入常压回收罐。S104, the control module is used to determine the magnitude relationship between the first pressure information and the second pressure information. If the first pressure information is greater than the second pressure information, the control module controls the first membrane valve to open, the second membrane valve to close, and the condensed water to be discharged into the In the closed condensate water recovery system, if the first pressure information is less than the second pressure information, the control module controls the first membrane valve to close, the second membrane valve to open, and the condensate is discharged into the atmospheric pressure recovery tank.
PCT/CN2022/086243 2021-04-12 2022-04-12 Device and method for automatic forced discharge of condensate water based on self-diagnosis technique WO2022218283A1 (en)

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CN113090803B (en) * 2021-04-12 2022-05-03 河北白沙烟草有限责任公司保定卷烟厂 Automatic forced condensate water discharging device and method
CN114384942A (en) * 2021-12-10 2022-04-22 镇江北新建材有限公司 Condensed water liquid level control system, method and device and gypsum board production line

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