CN213461823U - Temperature and pressure reduction station control system - Google Patents
Temperature and pressure reduction station control system Download PDFInfo
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- CN213461823U CN213461823U CN202022506419.8U CN202022506419U CN213461823U CN 213461823 U CN213461823 U CN 213461823U CN 202022506419 U CN202022506419 U CN 202022506419U CN 213461823 U CN213461823 U CN 213461823U
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- 230000009467 reduction Effects 0.000 title claims abstract description 32
- 230000005540 biological transmission Effects 0.000 claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 238000012544 monitoring process Methods 0.000 claims abstract description 24
- 230000001105 regulatory effect Effects 0.000 claims abstract description 16
- 238000000889 atomisation Methods 0.000 claims abstract description 8
- 238000004891 communication Methods 0.000 claims description 3
- 230000006837 decompression Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000001276 controlling effect Effects 0.000 abstract description 4
- 239000003638 chemical reducing agent Substances 0.000 abstract description 2
- 230000000007 visual effect Effects 0.000 abstract description 2
- 238000011065 in-situ storage Methods 0.000 abstract 1
- 230000008901 benefit Effects 0.000 description 4
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- 238000010438 heat treatment Methods 0.000 description 3
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- 238000010586 diagram Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
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- 230000004069 differentiation Effects 0.000 description 1
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- 238000004134 energy conservation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
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Abstract
The utility model discloses a novel temperature and pressure reduction station control system, which comprises a pressure reduction system, a temperature reduction system and a remote intelligent control system; the pressure reducing system and the temperature reducing system can be controlled manually and independently and can also be controlled remotely and intelligently in an integrated manner, the pressure reducing system is introduced from a gas distribution pipeline, and the gas distribution pipeline is respectively connected with an electric execution valve, a local/remote transmission pressure gauge, a thermometer and a safety valve thereof; the temperature reducing system mainly comprises an intelligent regulating valve, an atomization temperature reducer, a water supply regulating valve, a drain valve, a water supply pump, a manual stop valve and the like; the remote intelligent control system comprises a remote monitoring end and a local control end, and the remote monitoring end and the local control end are communicated through a network. The utility model discloses on original basis of controlling intelligent instrument function in situ, can realize that this target of intelligent mill upgrades, realized that production facility is intelligent, production data is visual and the production site is unmanned.
Description
Technical Field
The patent of the utility model relates to a temperature and pressure reduction station control system belongs to intelligent production technical field.
Background
The existing temperature and pressure reducing system is controlled by an instrument on site, inspection meter reading and nursing control are required to be carried out by a certain person, the target of an intelligent factory cannot be realized, and the aims of remote control and intelligent monitoring cannot be achieved.
The temperature and pressure reducing system controlled by the on-site intelligent instrument needs at least 3 persons to perform all-weather 3-shift inspection and meter reading work, and needs to open and close a valve and a water pump on the on-site side. Great waste is brought to manpower and various resources, and the cost cannot be reduced, so a new system capable of realizing unattended operation and remote intelligent control is urgently needed.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome the defect that current prior art exists to the realization responds with intelligent factory's target mutually, provides a temperature and pressure reduction control system who has unmanned on duty and realizes remote control and the function of checking meter.
The utility model adopts the following technical scheme:
the utility model provides a temperature and pressure reduction station control system, its includes that decompression system, temperature reduction system and remote intelligent control system constitute, wherein:
the pressure reducing system comprises a first remote transmission pressure transmitter and a first remote transmission temperature transmitter which are connected with the gas distribution pipe, the first remote transmission pressure transmitter and the first remote transmission temperature transmitter are sequentially connected with an electric execution valve, a second remote transmission pressure transmitter and a second remote transmission temperature transmitter through pipelines, and the rear pipeline of the electric execution valve is connected with the temperature reducing system;
the temperature reduction system comprises a temperature reduction branch pipeline led out from a pipeline at the rear part of the electric execution valve, and an intelligent regulating valve, a remote transmission pressure gauge, a third remote transmission temperature transmitter, a local drain valve, an atomization desuperheater, a water supply regulating valve, a water supply pump and a manual stop valve which are arranged on the temperature reduction branch pipeline;
the remote intelligent control system comprises a remote monitoring end and a local control end, and the remote monitoring end and the local control end are communicated through a network.
Furthermore, one side of electronic execution valve is provided with local control cabinet, electronic execution valve, first teletransmission pressure transmitter, first teletransmission temperature transmitter, second teletransmission pressure transmitter, second teletransmission temperature transmitter, intelligent control valve, teletransmission manometer, third teletransmission temperature transmitter, atomizing desuperheater all with local control cabinet is connected, local control cabinet carries out communication connection with the remote monitoring end.
Furthermore, the remote intelligent control system comprises a monitoring layer, the monitoring layer is connected with a network switch, one end of the network switch is connected with the touch screen, the other end of the network switch is connected with a control unit, and the control unit is respectively connected with the local digital display instrument and the local control instrument. The touch screen, the control unit, the local digital display instrument and the local control instrument can be used as a part of the local control cabinet.
Furthermore, the touch screen adopts a high-definition touch display screen.
Furthermore, one end of the temperature-reducing branch pipeline is connected to a pipeline at the rear part of the electric execution valve, the other end of the temperature-reducing branch pipeline is divided into two branches, one branch is connected with the water tank, a water supply pump, a water supply regulating valve and an atomization desuperheater are sequentially arranged on the branch, and a remote pressure gauge, a third remote temperature transmitter, a local drain valve and a manual stop valve are arranged on the other branch.
Furthermore, 3-5 feed pumps are arranged.
A control method of a control system of a temperature and pressure reducing station comprises the following steps:
(1) steam of the heating power pipe network enters the system and is accessed by a gas distribution pipeline;
(2) the rear end of the gas distribution pipeline collects the pressure and the temperature of the heating power pipe network by a first remote transmission pressure transmitter and a first remote transmission temperature transmitter which are installed and sends the pressure and the temperature into a local control cabinet for real-time monitoring, and pressure and temperature signals behind an electric execution valve are collected by a second remote transmission pressure transmitter and a second remote transmission temperature transmitter which sends the signals into the local control cabinet; the rear pressure reduction control uses an electric execution valve to receive a PLC control signal to adjust the on-off size of steam so as to realize intelligent pressure control; meanwhile, a safety valve is connected behind the electric execution valve to prevent overpressure, and steam which reaches the process requirement pressure after being regulated enters gas equipment for each factory building;
(3) the rear part of the electric execution valve is provided with another branch pipe which is connected with an intelligent regulating valve, the rear part is provided with an atomization desuperheater, desuperheating water is supplied by a water supply pump and the water supply quantity is controlled by a water supply regulating valve, desuperheating steam passes through a second remote transmission pressure transmitter and is collected by a second remote transmission temperature transmitter, a manual stop valve realizes the input and the stop of desuperheating steam, and the opening degrees of the intelligent regulating valve and the water supply regulating valve are output after PID setting is carried out through a PLC (programmable logic controller), so that the steam temperature is accurately controlled.
In the scheme, the temperature and pressure reduction station control system mainly realizes parameter real-time monitoring, automatic equipment control, intelligent temperature and pressure adjustment, automatic system fault diagnosis and alarm and real-time historical data recording. The system can monitor the front and back temperature and pressure of the temperature and pressure reducer in real time, and carries out real-time data acquisition on each key parameter of the whole system according to the acquisition mode set by the PLC. The collected real-time data are transmitted to the upper computer and the touch screen to be displayed in real time, and a manager can analyze, monitor and process the data conveniently.
The temperature and pressure reduction control system has two control modes, one is that a set of control system is formed by a PC (personal computer) of a central control room, a field touch screen and a PLC (programmable logic controller) together, and is used for controlling temperature and pressure reduction, monitoring data and storing data. And secondly, the original field intelligent instrument control mode is adopted, and equipment manufacturers provide intelligent instrument control. And the control function of the original intelligent instrument is kept in consideration of the field situation. A local and remote switching knob is added in the control cabinet, and a signal separator is adopted to divide the signals of the field sensor into two parts which are respectively transmitted to the field intelligent instrument and the PLC.
The PLC is used as a lower computer to complete process control of the system, the control system uses a Siemens PLC with the CPU model of 315-2PN/DP and is provided with two ET200 slave stations, and field signals are acquired through digital quantity and analog quantity signal input and output modules.
The field device mainly comprises a frequency converter, a water pump, an electric valve and various temperature and pressure sensors.
And a monitoring picture of the upper computer of the system uses Siemens WINCC software to design a human-computer interface. The interface comprises a system overview picture, a parameter setting picture, an alarm picture and a historical data curve picture.
The utility model has the advantages that: in order to build an intelligent factory, the intelligent control system with intelligent production equipment, visual production data and unmanned production site is realized, and great economic benefits are brought to energy conservation, manpower release and cost conservation.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a schematic diagram of a specific system structure of the present invention.
Fig. 2 is a schematic diagram of a network structure of the patent control system of the present invention.
Wherein: 1-1, a first remote transmission pressure transmitter, 1-2, a first remote transmission temperature transmitter, 1-3, a second remote transmission pressure transmitter, 1-4, a second remote transmission temperature transmitter, 2, a local control cabinet, 3-1, an electric execution valve, 3-2, an intelligent adjusting valve, 3-3, a water supply adjusting valve, 4, a local drain valve, 5, a safety valve, 6, a manual stop valve, 7-1, a remote transmission pressure gauge, 7-2, a third remote transmission temperature transmitter, 8-1, a gas distribution pipe, 8-2, a water supply pump, 9, a monitoring layer, 10, a network switch, 11, a touch screen, 12, a control unit, 13, a local digital display instrument and 14, local execution equipment.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, a control system for a temperature and pressure reduction station comprises a pressure reduction system, a temperature reduction system and a remote intelligent control system, wherein:
the pressure reducing system comprises a first remote transmission pressure transmitter 1-1 and a first remote transmission temperature transmitter 1-2 which are connected with a gas distribution pipe 8-1, the first remote transmission pressure transmitter 1-1 and the first remote transmission temperature transmitter 1-2 are sequentially connected with an electric execution valve 3-1, a second remote transmission pressure transmitter 1-3 and a second remote transmission temperature transmitter 1-4 through pipelines, a local control cabinet 2 is arranged on the left side of the electric execution valve 3-1, and the rear part of the electric execution valve 3-1 is connected with the temperature reducing system through a pipeline.
The temperature reduction system comprises a temperature reduction branch pipeline led out from a pipeline at the rear part of the electric execution valve 3-1, and an intelligent regulating valve 3-2, a remote pressure gauge 7-1, a third remote temperature transmitter 7-2, a local drain valve 4, an atomization desuperheater 8-3, a water supply regulating valve 3-3, a water supply pump 8-2 and a manual stop valve 6 which are arranged on the temperature reduction branch pipeline.
The remote intelligent control system comprises a monitoring layer 9, the monitoring layer 9 is connected with a network switch 10, one end of the network switch 10 is connected with a touch screen 11, the touch screen 11 can adopt a high-definition mode, the other end of the touch screen is connected with a control unit 12, and the control unit 12 is respectively connected with an on-site digital display instrument 13 and an on-site control instrument 14.
In the system, a first remote transmission pressure transmitter 1-1 is connected to a gas distribution pipeline 8-1, the first remote transmission temperature transmitter 1-2 acquires the pressure and the temperature before a heating power pipe network valve, the rear part of the first remote transmission temperature transmitter is connected with an electric pressure reducing valve 3-1, a safety valve 5 is installed at the rear part of the first remote transmission temperature transmitter, the pipeline is protected from overpressure, a second remote transmission pressure transmitter 1-3 and a second remote transmission temperature transmitter 1-4 are also installed behind the electric pressure reducing valve 3-1, the steam pressure and the temperature after the valve are acquired, meanwhile, PID (proportion integration differentiation) setting is carried out, the pressure control and the regulation of corresponding set values are realized, and the steam meeting the process requirements is. A branch pipeline is led out from the rear part of a gas distribution pipeline 8-1 of an electric execution valve 3-1 for temperature reduction control, the branch pipeline is connected with an intelligent adjusting valve 3-2, the intelligent adjusting valve 3-2 adjusts the steam consumption, the condensed water in a low-temperature condensed water tank is supplied by a water supply pump 8-2 and is mixed with the steam for temperature reduction through a water supply adjusting valve 3-3 and an atomization desuperheater 8-3, the opening degrees of the intelligent adjusting valve 3-2 and the water supply adjusting valve 3-3 are set through a control unit PID and then output, the effect of accurately controlling the temperature is achieved, and the steam reaching the set temperature is generated and then is conveyed to a user side for use.
As shown in fig. 2, the structural configuration of the automatic control system and the remote monitoring system is performed: the system comprises a control unit 12, a PLC (programmable logic controller) for program configuration, a profinet protocol, a TCP/IP (transmission control protocol/internet protocol) protocol for network configuration, a network switch 10 for communication, a touch screen 11 connected with an on-site control cabinet and a monitoring layer 9, an on-site digital display instrument 13 and an on-site control instrument 14 for acquiring and controlling signals, wherein the control unit 12 sends and acquires the signals, and the monitoring layer 9 acquires and monitors the signals on site by using configuration software. In normal operation, personnel adjustment is not needed, after setting of various pressures and temperatures needs to be carried out in a central control room, automatic adjustment and local data information acquisition are achieved through PID automatic control by an internal program, and unattended remote monitoring and meter reading functions are achieved.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the above embodiments do not limit the scope of the present invention in any way, and all technical solutions obtained by using equivalent substitution modes and the like fall within the scope of the present invention.
The utility model discloses the part that does not relate to all is the same with prior art or can adopt prior art to realize.
Claims (6)
1. The utility model provides a temperature and pressure reduction station control system, its characterized in that comprises decompression system, temperature reduction system and remote intelligent control system, wherein:
the pressure reduction system comprises a first remote transmission pressure transmitter (1-1) and a first remote transmission temperature transmitter (1-2) which are connected with a gas distribution pipe (8-1), the first remote transmission pressure transmitter (1-1) and the first remote transmission temperature transmitter (1-2) are sequentially connected with an electric execution valve (3-1), a second remote transmission pressure transmitter (1-3) and a second remote transmission temperature transmitter (1-4) through pipelines, and the rear pipeline of the electric execution valve (3-1) is connected with the temperature reduction system;
the temperature reduction system comprises a temperature reduction branch pipeline led out from a pipeline at the rear part of the electric execution valve (3-1), and an intelligent regulating valve (3-2), a remote pressure gauge (7-1), a third remote temperature transmitter (7-2), a local drain valve (4), an atomization desuperheater (8-3), a water supply regulating valve (3-3), a water supply pump (8-2) and a manual stop valve (6) which are arranged on the temperature reduction branch pipeline;
the remote intelligent control system comprises a remote monitoring end and a local control end, and the remote monitoring end and the local control end are communicated through a network.
2. A temperature and pressure reduction station control system according to claim 1, wherein a local control cabinet (2) is arranged on one side of the electric execution valve (3-1), the first remote pressure transmitter (1-1), the first remote temperature transmitter (1-2), the second remote pressure transmitter (1-3), the second remote temperature transmitter (1-4), the intelligent regulating valve (3-2), the remote pressure gauge (7-1), the third remote temperature transmitter (7-2) and the atomization desuperheater (8-3) are all connected with the local control cabinet (2), and the local control cabinet (2) is in communication connection with a remote monitoring end.
3. A control system for a temperature and pressure reducing station as claimed in claim 1 or 2, wherein the remote intelligent control system comprises a monitoring layer (9), the monitoring layer (9) is connected with a network switch (10), one end of the network switch (10) is connected with a touch screen (11), the other end of the network switch is connected with a control unit (12), and the control unit (12) is respectively connected with an on-site digital display instrument (13) and an on-site control instrument (14).
4. A control system of a temperature and pressure reducing station as claimed in claim 3, characterized in that the touch screen (11) is a high-definition touch display screen.
5. A temperature and pressure reducing station control system as claimed in claim 1, wherein one end of the branch pipeline is connected to the pipeline behind the electric actuator valve (3-1), the other end is divided into two branches, one branch is connected with the water tank, the branch is provided with a water feeding pump (8-2), a water feeding regulating valve (3-3) and an atomizing desuperheater (8-3) in sequence, and the other branch is provided with a remote pressure gauge (7-1), a third remote temperature transmitter (7-2), a local drain valve (4) and a manual stop valve (6).
6. A control system for a temperature and pressure reducing station as claimed in claim 1 or 5, characterized in that 3-5 feed pumps (8-2) are provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022506419.8U CN213461823U (en) | 2020-11-03 | 2020-11-03 | Temperature and pressure reduction station control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022506419.8U CN213461823U (en) | 2020-11-03 | 2020-11-03 | Temperature and pressure reduction station control system |
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| Publication Number | Publication Date |
|---|---|
| CN213461823U true CN213461823U (en) | 2021-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022506419.8U Active CN213461823U (en) | 2020-11-03 | 2020-11-03 | Temperature and pressure reduction station control system |
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| Country | Link |
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| CN (1) | CN213461823U (en) |
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- 2020-11-03 CN CN202022506419.8U patent/CN213461823U/en active Active
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