CN202025208U - On-line measure and control device on pressure vessel - Google Patents
On-line measure and control device on pressure vessel Download PDFInfo
- Publication number
- CN202025208U CN202025208U CN2011200856184U CN201120085618U CN202025208U CN 202025208 U CN202025208 U CN 202025208U CN 2011200856184 U CN2011200856184 U CN 2011200856184U CN 201120085618 U CN201120085618 U CN 201120085618U CN 202025208 U CN202025208 U CN 202025208U
- Authority
- CN
- China
- Prior art keywords
- pressure vessel
- control
- gas
- icu
- plc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
An on-line measure and control device on a pressure vessel mainly solves the problem that the conventional pressure vessel is lack of an on-line detection device. The on-line measure and control device is characterized in that an in-vessel gas sampling room (4), a sampling room control electromagnetic valve (2), a sampling gas alarm (6), a vacuum pump (3), a digital display meter (7), an emptying electromagnetic valve (8), and an output interface (9) are comprised, wherein the sampling room control electromagnetic valve (2), the sampling gas alarm (6), the vacuum pump (3), and the emptying electromagnetic valve (8) are connected to a corresponding outlet end of the in-vessel gas sampling room (4) through pipelines respectively. The on-line measure and control device can on-line detect the density of target gas in the pressure vessel, can control the start/stop of the pressure vessel, and has the advantages of short responding time and high sensitivity. Besides, after equipped with an Ethernet communication module, the on-line measure and control device can also realize remote on-line test and direct control to the pressure vessel.
Description
Technical field
The utility model relates to a kind of on-line testing and control device, particularly relates to a kind of device that can carry out on-line testing and Long-distance Control to flammable explosive gas concentration in the pressure vessel.
Background technology
At present, ensure that many visual plants of field produces operation all are pressure vessels, for example gas fired-boiler, water tank, gas-holder and storage tank.These pressure vessels are through after using for a long time, be found and have a general safety problem, that is exactly: in each oil field, the whole nation, all took place because of there being residual gas not sweep only in the pressure vessel, detonation, blast take place when causing unexpected working pressure container, cause the accident of national wealth loss and personnel's injury.In addition, in some pressure vessels, the concentration of some gas is needed a specific limit,, security incident will take place in case transfinite.In the prior art, detection problem for residual gas in the pressure container, there have been many portable detectors to occur on the market, the advantage of this portable detector be volume little, be easy to carry, but but exist the response time long, sensitivity is low, can not on-line testing and can not the Long-distance Control pressure vessel etc. defective, therefore, problems of the prior art are not really solved.
Summary of the invention
In order to solve the prior art problem that proposes in the background technology, the utility model provides a kind of online monitoring method device that is used on the pressure vessel, the object gas concentration of this kind online monitoring method device in can online detected pressures container, and startup that can the controlled pressure container with stop using, can eliminate the potential safety hazard of pressure vessel, have short, highly sensitive characteristics of response time.In addition, after having increased the ethernet communication module, can also realize the remote online test and the direct function of controlled pressure container, guaranteed operating personnel personal safety, improved work efficiency.
The technical solution of the utility model is: this kind is used for the online monitoring method device on the pressure vessel, comprise industrial control unit (ICU) PLC, the interior gas sample chamber of container, sampling hut's control electromagnetic valve, gas sampled alarm, vacuum pump, digital display meter, emptying solenoid valve and an output interface, wherein, described sampling hut control electromagnetic valve, gas sampled alarm, vacuum pump and emptying solenoid valve are connected in the corresponding endpiece of gas sample chamber in the described container respectively through pipeline; Vacuum pump enabled instruction output terminal on the described industrial control unit (ICU) PLC is connected in the start-up control loop of described vacuum pump, the startup of control vacuum pump; Sampling open command output terminal on the described industrial control unit (ICU) PLC is connected in the unlatching control loop of described sampling hut control electromagnetic valve, the unlatching of control sampling hut control electromagnetic valve; Emptying open command output terminal on the described industrial control unit (ICU) PLC is connected in the unlatching control loop of emptying solenoid valve, the unlatching of control emptying solenoid valve; The analog signal output of described gas sampled alarm is connected with the input end of analog signal of digital display meter; Simultaneously, this analog signal output process A/D converter is connected to the test signal input end on the described industrial control unit (ICU) PLC; Draw through output interface by the pressure vessel start and stop control signal that described industrial control unit (ICU) PLC produces; The signal output part of the inflammable gas detection probe that the input end of analog signal of described gas sampled alarm is indoor with being positioned at described container gas sample is connected.
For increasing the performance of this device, can on the such scheme basis, draw further improvement project, be that described measure and control device also comprises an ethernet communication module, the data receiver of described ethernet communication module is connected in the data to be transferred signal output part of described industrial control unit (ICU) PLC.During specific implementation, described A/D converter adopts 14 ADSP-2199X chip, described ethernet communication module by the W5100 chip with constitute after the EFM32 chip is connected according to the data transfer direction.Described industrial control unit (ICU) PLC can select Siemens S7 series programmable controller for use.
The utlity model has following beneficial effect: because after taking such scheme, vacuum pump is drawn onto gas sample chamber in the container with the gas in the pressure vessel under the steering order effect of programmable controller, probe by the gas sampled alarm in the sampling hut detects again, gas sampled alarm output 4-20mA signal is handled the object gas concentration parameter that can intuitively be shown after the computing through digital display meter, so the response time is short, highly sensitive.And because this output terminal is connected to the test signal input end on the programmable controller simultaneously, when surpassing warning value, programmable controller sends the No starting signal by output interface to the pressure vessel control system under the control of plug-in, guarantee operating personnel's personal safety thus, improved work efficiency.In addition, in preferred version owing to adopted 14 A/D converters that the interchange simulating signal that collects is carried out the conversion of digital signal, be input to industrial PLC again after, can be so that the measuring accuracy of route protection measure and control device be improved significantly.In addition, adopted to be used and constituted ethernet module by W5100 chip and EFM32 chip, change this communication mode of Ethernet by serial ports, make the data communication transfer rate can reach 10MB, can adapt to great amount of data transmission, therefore can make the online monitoring method data of pressure vessel can be realized Long-distance Control by teletransmission.And, improved the antijamming capability of this measure and control device, have stronger operation stability.
Description of drawings:
Fig. 1 is a composition synoptic diagram of the present utility model.
Fig. 2 is the electric control theory figure of a specific embodiment of the utility model.
1-industrial control unit (ICU) PLC among the figure, 2-sampling hut control electromagnetic valve, gas sample chamber in the 3-vacuum pump, 4-container, 6-gas sampled alarm, 7-digital display meter, 8-emptying solenoid valve, 9-output interface.
Embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
By shown in Figure 1, this kind is used for the online monitoring method device on the pressure vessel, comprise industrial control unit (ICU) PLC1, the interior gas sample chamber 4 of container, sampling hut's control electromagnetic valve 2, gas sampled alarm 6, vacuum pump 3, digital display meter 7, emptying solenoid valve 8 and an output interface 9, wherein, described sampling hut control electromagnetic valve 2, gas sampled alarm 6, vacuum pump 3 and emptying solenoid valve 8 are connected in the corresponding endpiece of gas sample chamber 4 in the described container respectively through pipeline.The concrete connected mode of said modules is that the vacuum pump enabled instruction output terminal on the described industrial control unit (ICU) PLC1 is connected in the start-up control loop of described vacuum pump 3, the startup of control vacuum pump 3; Sampling open command output terminal on the described industrial control unit (ICU) PLC1 is connected in the unlatching control loop of described sampling hut control electromagnetic valve 2, the unlatching of control sampling hut control electromagnetic valve 2; Emptying open command output terminal on the described industrial control unit (ICU) PLC1 is connected in the unlatching control loop of emptying solenoid valve 8, the unlatching of control emptying solenoid valve 8; The analog signal output of described gas sampled alarm 6 is connected with the input end of analog signal of digital display meter 7; Simultaneously, this analog signal output process A/D converter is connected to the test signal input end on the described industrial control unit (ICU) PLC1; Drawn through output interface 9 by the pressure vessel start and stop control signal that described industrial control unit (ICU) PLC1 produces, the signal output part of the inflammable gas detection probe that the input end of analog signal of described gas sampled alarm 6 is indoor with being positioned at described container gas sample is connected.
During concrete enforcement, need in sealing and container that have air admission hole and vent port, in the gas sample chamber 4 the inflammable gas detection probe be housed, and connecting sampling hut's control electromagnetic valve 2 at air inlet position, the pump that connects on emptying solenoid valve 8 and the vacuum pump 3 at the vent port place is inhaled the hole.Because industrial control unit (ICU) PLC1 can control emptying solenoid valve 8 respectively under the control of inner initialize program, sampling hut's control electromagnetic valve 2 and vacuum pump 3, so when the system directive of industrial control unit (ICU) PLC1 is taken a sample, sampling hut's control electromagnetic valve 2 is opened, vacuum pump 3 runnings simultaneously, sampling pipette by 2 connections of sampling hut's control electromagnetic valve, gas in the pressure vessel is drawn onto in the container in the gas sample chamber 4, gas detector probe in the container in the gas sample chamber 4 detects sample gas, and a result who detects is output as the signal of 4-20mA after 6 conversion of gas sampled alarm, handle computing through digital display meter and can obtain object gas concentration parameter value to be measured in the pressure vessel, so just can demonstrate the concentration of pressure vessel internal object gas intuitively.Because the analog signal output of gas sampled alarm 6 is connected to the test signal input end on the industrial control unit (ICU) PLC1 simultaneously, like this, in case object gas concentration to be measured surpasses preset value, industrial control unit (ICU) PLC1 will produce corresponding control signal is drawn the controlled pressure container through output interface 9 control system, it can not be used, thereby guaranteed security.
For increasing the performance of this device, can on the such scheme basis, draw further improvement project, promptly described measure and control device also comprises an ethernet communication module, described ethernet communication module is connected in the data to be transferred signal output part of described industrial control unit (ICU) PLC.
Shown in Figure 2 is the electric control theory figure of an embodiment of the technical program, the concrete element that adopts is: S-50-24 Switching Power Supply, FGI-3T combustible gas probe, PH2507 vacuum pump, PAN-GLOBE digital display meter, OMRON-WY relay, GSR-A52331002.182XXX solenoid valve, BJ-1 hummer, and ZB2-BE101 dials the position switch composition.Described A/D converter can adopt 14 ADSP-2199X chip, described ethernet communication module by the W5100 chip with constitute after the EFM32 chip is connected according to the data transfer direction.Described industrial control unit (ICU) PLC can select Siemens S7 series programmable controller for use.
The specific operation process of this device is: when group position switch is got to sampling, programmable controller controls sampling solenoid valve is opened, vacuum pump running simultaneously, indoor by the sampling pipette that the sampling solenoid valve connects in the pressure vessel gas sample in the gas inspiration container in the pressure vessel, this indoor detector probe detected the sample air to open beginning in the gas sample chamber in the container, and the information that detects is become the 4-20mA signal export to digital display meter, handle computing through digital display meter and can obtain the gas concentration parameter value.Sampling closed electromagnetic valve after detection finishes, the emptying solenoid valve is opened, vacuum pump running simultaneously, gas sample chamber emptying in the container.
Under this programme owing to adopted 14 A/D converters that the interchange simulating signal that collects is carried out the conversion of digital signal, be input to industrial PLC again after, can be so that the measuring accuracy of route protection measure and control device be improved significantly.In addition, adopted to be used and constituted ethernet module by W5100 chip and EFM32 chip, change this communication mode of Ethernet by serial ports, make the data communication transfer rate can reach 10MB, can adapt to great amount of data transmission, therefore can make the online monitoring method data of pressure vessel can be realized Long-distance Control by teletransmission, improve the antijamming capability of device, had good operation stability.
Claims (3)
1. online monitoring method device that is used on the pressure vessel, comprise industrial control unit (ICU) PLC(1), it is characterized in that: described online monitoring method device also comprises gas sample chamber (4) in the container, sampling hut's control electromagnetic valve (2), gas sampled alarm (6), vacuum pump (3), digital display meter (7), emptying solenoid valve (8) and output interface (9), wherein, described sampling hut's control electromagnetic valve (2), gas sampled alarm (6), vacuum pump (3) and emptying solenoid valve (8) are connected in the corresponding endpiece of gas sample chamber (4) in the described container respectively through pipeline;
Described industrial control unit (ICU) PLC(1) the vacuum pump enabled instruction output terminal on is connected in the start-up control loop of described vacuum pump (3), the startup of control vacuum pump (3);
Described industrial control unit (ICU) PLC(1) the sampling open command output terminal on is connected in the unlatching control loop of described sampling hut control electromagnetic valve (2), the unlatching of control sampling hut's control electromagnetic valve (2);
Described industrial control unit (ICU) PLC(1) the emptying open command output terminal on is connected in the unlatching control loop of emptying solenoid valve (8), the unlatching of control emptying solenoid valve (8);
The analog signal output of described gas sampled alarm (6) is connected with the input end of analog signal of digital display meter (7); Simultaneously, this analog signal output is connected to described industrial control unit (ICU) PLC(1 through A/D converter) on the test signal input end;
By described industrial control unit (ICU) PLC(1) the pressure vessel start and stop control signal that produces draws through output interface (9);
The signal output part of the inflammable gas detection probe that the input end of analog signal of described gas sampled alarm (6) is indoor with being positioned at described container gas sample is connected.
2. a kind of online monitoring method device that is used on the pressure vessel according to claim 1, it is characterized in that: it is characterized in that: described measure and control device also comprises an ethernet communication module, and the data receiver of described ethernet communication module is connected in described industrial control unit (ICU) PLC(1) the data to be transferred signal output part.
3. according to a kind of online monitoring method device that is used on the pressure vessel described in the claim 2, it is characterized in that: described A/D converter adopts 14 ADSP-2199X chip, described ethernet communication module by the W5100 chip with constitute after the EFM32 chip is connected according to the data transfer direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200856184U CN202025208U (en) | 2011-03-29 | 2011-03-29 | On-line measure and control device on pressure vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200856184U CN202025208U (en) | 2011-03-29 | 2011-03-29 | On-line measure and control device on pressure vessel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202025208U true CN202025208U (en) | 2011-11-02 |
Family
ID=44850153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200856184U Expired - Fee Related CN202025208U (en) | 2011-03-29 | 2011-03-29 | On-line measure and control device on pressure vessel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202025208U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105549639A (en) * | 2015-12-09 | 2016-05-04 | 国家电网公司 | Pressure vessel auxiliary equipment control method based on PLC control |
| WO2018195994A1 (en) * | 2017-04-28 | 2018-11-01 | 深圳瀚飞科技开发有限公司 | Pressure vessel warning single chip microcomputer control system |
| CN112964832A (en) * | 2021-02-07 | 2021-06-15 | 河钢股份有限公司承德分公司 | Pressure vessel gas sampling analysis system and control method |
-
2011
- 2011-03-29 CN CN2011200856184U patent/CN202025208U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105549639A (en) * | 2015-12-09 | 2016-05-04 | 国家电网公司 | Pressure vessel auxiliary equipment control method based on PLC control |
| CN105549639B (en) * | 2015-12-09 | 2019-01-08 | 国家电网公司 | A method of the pressure vessel ancillary equipment control based on PLC control |
| WO2018195994A1 (en) * | 2017-04-28 | 2018-11-01 | 深圳瀚飞科技开发有限公司 | Pressure vessel warning single chip microcomputer control system |
| CN112964832A (en) * | 2021-02-07 | 2021-06-15 | 河钢股份有限公司承德分公司 | Pressure vessel gas sampling analysis system and control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103063482B (en) | Tritium-containing exhaust gas discharge monitoring automatic sampling system | |
| CN105865853A (en) | Online analysis system of ship exhaust emission | |
| CN103196518B (en) | Transformer and respirator online monitor and operating method thereof | |
| CN107035521B (en) | A kind of LNG/ Diesel Dual-Fuel Engine safety monitoring system peculiar to vessel | |
| CN202025208U (en) | On-line measure and control device on pressure vessel | |
| CN202041249U (en) | Intelligent full-automatic reverse-blowing anti-blocking detection device | |
| CN101702084B (en) | High-temperature and high-pressure water circulation control system and control method thereof | |
| CN203025025U (en) | Tritium-containing waste gas emission monitoring and automatic sampling system | |
| CN202442107U (en) | Independent liquefied natural gas supply device | |
| CN2909009Y (en) | On-line monitoring device for boiler explosion-proof | |
| CN201407486Y (en) | Bulk special gas supply system | |
| CN114458661B (en) | Towing type oil pump truck system and control method | |
| CN206740687U (en) | Flue gas pretreatment, collection and the on-line analysis device of cone calorimetry | |
| CN202837281U (en) | Embedded-control-based oil-gas concentration detection alarm calibrating device capable of dynamically distributing air | |
| CN109346749B (en) | Fuel cell stack tail gas detection module | |
| CN202255463U (en) | Pressure and flow test system | |
| CN204594762U (en) | A kind of multi-usage integrated form gas carries sampler | |
| CN213456019U (en) | Nuclear power unit penetration piece leakproofness test device | |
| CN212515506U (en) | Automatic control system of ammonia on-line analyzer based on principle of spectrophotometry | |
| CN102323316B (en) | High-temperature high-pressure calibration device and calibration method of pH electrode | |
| CN203037423U (en) | Air tightness detection device for positive-pressure containers | |
| CN209197987U (en) | A kind of vacuum monitor device of cabinet | |
| CN205958196U (en) | Gas table cuts off leakproofness detection device | |
| CN205538912U (en) | Equipment mistake blocking device is prevented to gaseous detection of SF6 | |
| CN213398442U (en) | Methane composition on-line monitoring device for high-pressure gas pipeline |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111102 Termination date: 20120329 |