CN206430781U - Electric desalting equipment oil-water interfaces are monitored on-line and control device - Google Patents
Electric desalting equipment oil-water interfaces are monitored on-line and control device Download PDFInfo
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- CN206430781U CN206430781U CN201621313805.2U CN201621313805U CN206430781U CN 206430781 U CN206430781 U CN 206430781U CN 201621313805 U CN201621313805 U CN 201621313805U CN 206430781 U CN206430781 U CN 206430781U
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Abstract
The utility model is related to a kind of electric desalting equipment oil-water interfaces on-line monitoring and control device, the sleeping tank of the desalination of electric desalting equipment is equipped with stop valve and sampling valve and sampling pipe, every sampling pipe draws the automatic sampling pipe with controlling of sampling valve by threeway of sampling respectively between its stop valve and sampling valve, and multiple sampling pipes automatic side by side are prestored the closed pressure resistant buffer tank bottom of gas by collecting sampling pipe UNICOM again；Buffer tank configures return pipeline and feed back pump and check (non-return) valve not countercurrently, and the connection desalination of feed back tube head end is crouched between tank or the sampling threeway for connecting the automatic sampling pipe that highest thief hatch or highest and minimum thief hatch are drawn and controlling of sampling valve；Automatic sampling pipe collects the online profit detection sensor of sampling pipe configuration.With high-frequency water level detecting can be carried out, the advantage of discharge oil medium is avoided that again.
Description
Technical field
The utility model is related to a kind of storage tank and cuts wetting system, and more particularly to a kind of electric desalting equipment oil-water interfaces are supervised online
Survey and control device.
Background technology
Tape splicing sampling hand is drawn respectively to the water level that may possibly be separated of multiple discrepancy in elevation of desalination storage tank in existing electric desalting apparatus
The sampling pipe of dynamic valve, and by manually opening the sampling hand-operated valve of multiple discrepancy in elevation sampling pipes successively, observe by the naked eye sampling pipe
The medium character of outflow judges the water level in desalination storage tank, so as to instruct electric desalting apparatus to carry out draining desalination.It is this artificial
Water level method is surveyed in sampling, and not only water level detecting efficiency is low, be not suitable for high-frequency water level detecting, and inevitably discharges oil
Property medium, causes unnecessary environmental pollution.
Utility model content
The utility model aims to overcome that the drawbacks described above of prior art can carry out high-frequency water level inspection there is provided one kind
Survey, the electric desalting equipment oil-water interfaces on-line monitoring and control device of discharge oil medium are avoided that again.
To achieve the above object, the utility model electric desalting equipment oil-water interfaces on-line monitoring and control device, de- in electricity
The closed pressure resistant desalination of salt equipment crouch that many equation of equal altitude position thief hatch of tank draw it is multiple side by side, be equipped with hand stop valve and hand respectively
The manual sampling pipe of dynamic sampling valve, the DCS/PLC desalinations control system of electric desalting equipment crouches in tank according to the desalination measured in real time
Oil-water interface position carries out corresponding desalination control, and every manual sampling pipe is distinguished between its hand stop valve and manual sampling valve
Automatic sampling pipe with controlling of sampling valve is drawn by threeway of sampling, multiple sampling pipes automatic side by side join by collecting sampling pipe again
The closed pressure resistant buffer tank bottom of the logical gas that prestores；Outside configuration is higher than the level sensing for collecting sampling interface tube in the middle part of buffer tank
Sensor, top mating gaseous pressure sensor；The return pipeline of buffer tank configuration not countercurrently, return pipeline is end caching certainly
The feed back pipe configuration feed back pump and check (non-return) valve of bottom or end UNICOM buffer tank bottom in buffer tank, feed back tube head are led in tank top
End connection desalination crouch automatic sampling pipe that tank or connection highest thief hatch or highest and minimum thief hatch draw sampling threeway with
Between controlling of sampling valve；Automatic sampling pipe collects the online profit detection sensor of sampling pipe configuration；
Control valve, liquid level detecting sensor, gaseous pressure sensor and online profit detection sensor and feed back pump are electrically connected
Automatic controller.
Under automatic controller control：It is complete in all hand stop valve standard-sized sheets and all manual sampling valves and all control valves
On the premise of closing, opening a controlling of sampling valve makes medium flow to buffer tank, utilizes automatic sampling pipe where the controlling of sampling valve
Or collect that sampling pipe matches somebody with somebody after line profit detection sensor enters line delay detection to medium character in sampling pipe, close this and adopt
Sample control valve；When pressure tank balance is crouched in gaseous pressure in the buffer tank that gaseous pressure sensor is detected and desalination, using returning
Medium in buffer tank is transmitted back to the sleeping tank of desalination by material pump and not return pipeline countercurrently, until liquid level detecting sensor detects it
Feed back pump is closed when residing buffer tank inner height is gas phase and stops feed back；
Or under automatic controller control：In all hand stop valve standard-sized sheets and all manual sampling valves and all controls
On the premise of valve is fully closed, opening a controlling of sampling valve makes medium flow into buffer tank, treats that gaseous pressure sensor is detected slow
Deposit gaseous pressure and desalination in tank crouch pressure tank balance when, using automatic sampling pipe where the controlling of sampling valve or collect sampling
Pipe match somebody with somebody after line profit detection sensor is detected to medium character in sampling pipe, close the controlling of sampling valve；Using return
Medium in buffer tank is transmitted back to the sleeping tank of desalination by material pump and not return pipeline countercurrently, until liquid level detecting sensor detects it
Feed back pump is closed when residing buffer tank inner height is gas phase and stops feed back.With high-frequency water level detecting can be carried out, it is avoided that again
Discharge oiliness to be situated between, the advantage of environment-friendly high-efficiency.
As optimization, the sampling threeway for the automatic sampling pipe that connection highest thief hatch or highest and minimum thief hatch are drawn with
Feed back tube head section between controlling of sampling valve is configured with feed back pump and opens the feed back control closed after front opening, feed back pump are closed
Valve.
As optimization, sampling threeway and controlling of sampling valve when connection highest and the automatic sampling pipe of minimum thief hatch extraction
Between feed back tube head section when being configured with feed back pump and opening the feed back control valve closed after front opening, feed back pump are closed, from height
The medium of position thief hatch is transmitted back to returning between the sampling threeway of the automatic sampling pipe of highest thief hatch extraction and controlling of sampling valve
Expects pipe, the medium from low level thief hatch is transmitted back to sampling threeway and the controlling of sampling for the automatic sampling pipe that minimum thief hatch is drawn
Feed back pipe between valve.
As optimization, the automatic sampling pipe is big in controlling of sampling valve tract concatenation two ends band end plate or blue disk, diameter
In the horizontal detection pipe of sampling pipe diameter automatically, one end end plate of the online profit detection sensor configuration in horizontal detection pipe
Or Lan Panshang；
The sampling pipe concatenation two ends of collecting are more than the horizontal detection for collecting sampling pipe diameter with end plate or blue disk, diameter
Pipe, one end end plate or Lan Panshang of the online profit detection sensor configuration in horizontal detection pipe.
As optimization, the latter end for collecting sampling pipe in its Connection Cache tank connects downwards tennis partner by the Zhi Santong that samples
The sampling branch pipe of dynamic sampling branch valve.
As optimization, it is furnished with material storage container below the sampling branch pipe.
As optimization, the liquid level detecting sensor configuration connects in the middle and lower part side of buffer tank, the sampling pipe that collects
Mouth is less than the liquid level detecting sensor of buffer tank.The sampling interface tube that collects is sensed to the distance at buffer tank bottom for level sensing
Device to buffer tank bottom distance 1/2 or so.
As optimization, the feed back pump is packed in above buffer tank.
As optimization, the sleeping tank bottom face of the desalination, which draws to be connected to the sewage efferent duct for leading to sewage-treatment plant and draw, is connected to Jie
Matter input pipe, the sewage efferent duct and medium input pipe be each configured with being electrically connected DCS/PLC desalination control systems sewage it is defeated
Go out control valve and medium input control valve.
As optimization, multiple thief hatch are centrally located in same plane, and the plane and the sleeping tank axis oblique of desalination.It is horizontal
To the several times or decades of times of a diameter of automatic sampling pipe diameter of detection pipe.
The desalination crouches pot bottom respectively by the high-order storage tank of the feed pipe UNICOM with inlet control valve and by with dirt
The blow-off pipe UNICOM sewage-treatment plant of water exhaust-control valve, inlet control valve and sewage blow-down valve are electrically connected DCS/PLC desalination controls
System processed.
Intelligent controller can manually detect that the online profit on pipeline is detected by the sleeping tank of desalination is serially connected in threeway form
Sensor real-time Transmission returns the DCS/PLC desalination control systems of control room so that DCS/PLC desalinations control system is according to this data
Carry out corresponding technological process.Monitoring is arranged on the gaseous pressure sensor on buffer tank to intelligent controller in real time, works as buffer tank
In pressure close to desalination crouch pressure inside the tank when, intelligent controller will start feed back pump, by the medium loopback in buffer tank back off
Salt crouches tank.Intelligent controller allows whole system to be operated in company by the controlling of sampling valve for controlling to be arranged on automatic sampling pipe
Continuous sampling state.Intelligent controller can control to monitor the sample detecting line covered more where online profit detection sensor simultaneously.
The controlling of sampling valve on the sampling pipe of UNICOM's highest order thief hatch is opened, the material that desalination is crouched in tank is adopted by this
The sampling pipe that sample control valve is matched somebody with somebody is pressed into the buffer tank for the gas that prestores, the online profit detection sensor that the controlling of sampling valve string is matched somebody with somebody
Medium character in the sampling pipe is detected.
If testing result is water, a thief hatch high position is just transferred to the DCS/PLC desalinations for the signal of water and controlled
System, and close the controlling of sampling valve and open feed back control valve and feed back pump to the sleeping tank loopback material of desalination, until liquid level inspection
Survey sensor and can't detect liquid medium, close feed back pump and feed back control valve, terminate a sample detecting；
If testing result is oil, feed back control valve and feed back pump are turned on to the sleeping tank loopback material of desalination, until liquid level
Detection sensor can't detect liquid medium, close feed back pump and feed back control valve；UNICOM is opened again less than highest order thief hatch
The second high-order thief hatch sampling pipe on controlling of sampling valve, what the material for making desalination crouch in tank was matched somebody with somebody by the controlling of sampling valve
Sampling pipe is pressed into the buffer tank for the gas that prestores, the online profit detection sensor that the controlling of sampling valve string is matched somebody with somebody is in the sampling pipe
Medium character detected；And according to be detected as water or for oil result repeat foregoing correlation step respectively.
Wherein：The detection of the sleeping tank thief hatch liquid level medium character of desalination is under intelligent controller control：It is sleeping using desalination
Gas phase pressure difference makes the sampled pipe of medium in the sleeping tank of desalination flow into buffer tank in tank and buffer tank, utilizes online profit detection sensor
To flowing through or stream is deposited its desalination with sampling pipe medium character in tank that crouches and detected, and directly or according to needing testing result
Or detection judged result sends DCS/PLC desalination control systems to；Medium in buffer tank is transmitted back into desalination using feed back pump to crouch
Tank, makes gaseous pressure in buffer tank be less than gaseous pressure in the sleeping tank of desalination.
The detection of the sleeping tank thief hatch liquid level medium character of desalination is under intelligent controller control：In all manual shutoffs
On the premise of valve standard-sized sheet and all manual sampling valves and all control valves are fully closed, open the thief hatch and draw adopting for sampling pipe configuration
Sample control valve, makes medium sampled pipe in the case where pressure inside the tank is crouched in desalination in the sleeping tank of desalination flow into buffer tank to gaseous pressure sensor
Detect gaseous pressure and desalination in surge tank crouch pressure inside the tank balance when, utilize the online profit detection of sampling pipe configuration to pass
Sensor is to flowing through or stream is deposited the medium character of the sampling pipe and detected, and directly or according to needing to sentence testing result or detection
Disconnected result sends DCS/PLC desalination control systems to；When in the buffer tank that gaseous pressure sensor is detected gaseous pressure with it is de-
When the sleeping pressure inside the tank of salt is balanced, close the controlling of sampling valve and open feed back control valve and feed back pump to the sleeping tank loopback thing of desalination
Material, until liquid level detecting sensor can't detect liquid medium, closes feed back pump and feed back control valve.
When open the thief hatch draw sampling pipe configuration controlling of sampling valve after, make desalination crouch tank in medium desalination crouch tank
Sampled pipe flows into buffer tank to gaseous pressure sensor and detected in surge tank in gaseous pressure and the sleeping tank of desalination under interior pressure
Pressure balance constantly, first detects in line profit detection sensor and closes the controlling of sampling valve in sampling pipe after medium or first close
The controlling of sampling valve detects medium in sampling pipe after line profit detection sensor, then opens feed back control valve and feed back pump to de-
The sleeping tank loopback material of salt, until liquid level detecting sensor can't detect liquid medium, closes feed back pump and feed back control valve.
The detection of the sleeping tank oil-water interface of desalination is under intelligent controller control, to detect successively from high to low or from low to high
The medium character of each thief hatch liquid level of the sleeping tank of desalination：
When detecting from high to low, if the medium for detecting highest order thief hatch liquid level is water, sentenced by intelligent controller
Determine desalination and crouch tank oil-water interface at highest thief hatch, and transmitted to DCS/PLC desalinations control system；If detected two high
When the medium of low phase neighbour's thief hatch liquid level is respectively oil and water, then judge that the sleeping tank oil-water interface of desalination is low at this by intelligent controller
At thief hatch, and transmitted to DCS/PLC desalinations control system；
When detecting from low to high, if it is oil to detect the medium of lowest order thief hatch liquid level, sentenced by intelligent controller
Determine desalination and crouch tank oil-water interface below minimum thief hatch, and transmitted to DCS/PLC desalinations control system；If detecting two
When the medium of height neighbouring sample oral fluid position is respectively oil and water, then judge that desalination crouches tank oil-water interface at this by intelligent controller
At low thief hatch, and transmitted to DCS/PLC desalinations control system.
Under intelligent controller control：It is complete in all hand stop valve standard-sized sheets and all manual sampling valves and all control valves
On the premise of closing, by opening controlling of sampling valve, the material that desalination is crouched in tank is first set to be pressed into the slow of the gas that prestores by sampling pipe
Tank is deposited to sense to the sleeping pressure tank balance of caching pressure tank and desalination, then by the online profit detection concatenated with the controlling of sampling valve
Medium character where device detects the controlling of sampling valve in sampling pipe, the medium character measured is exactly that the sampling pipe draws what is connect
Medium character in the sleeping tank of the desalination of thief hatch position；When measuring highest order thief hatch medium for water, or other height
Thief hatch medium is water and when more high-order thief hatch is oil, and intelligent controller is just made above-mentioned medium for the thief hatch position of water
Transmitted for real-time oil-water interfaces information to DCS/PLC desalinations control system.
After adopting the above technical scheme, the utility model electric desalting equipment oil-water interfaces on-line monitoring and control device have
High-frequency water level detecting can be carried out, is avoided that discharge oiliness is situated between again, the advantage of environment-friendly high-efficiency.
Brief description of the drawings
Fig. 1 is the utility model electric desalting equipment oil-water interfaces on-line monitoring and the schematic diagram of control device embodiment one；
Fig. 2 is the utility model electric desalting equipment oil-water interfaces on-line monitoring and the schematic diagram of control device embodiment two.
Embodiment
Embodiment one, as shown in figure 1, the utility model electric desalting equipment oil-water interfaces on-line monitoring and control device be
The closed pressure resistant desalination of electric desalting equipment crouch that tank equation of equal altitude more than 1 position thief hatch draws it is multiple side by side, be equipped with manual shutoff respectively
Valve Vh1 and manual sampling valve Vh2 manual sampling pipe 21, the DCS/PLC desalinations control system of electric desalting equipment is according to real-time survey
Oil-water interface position carries out corresponding desalination control in the sleeping tank 1 of desalination obtained, and every manual sampling pipe 21 is in its hand stop valve Vh1
Between manual sampling valve Vh2 respectively by sample threeway 31 draw with controlling of sampling valve V1 automatic sampling pipe 22, it is multiple simultaneously
Automatic sampling pipe 22 is arranged to prestore the bottom of closed pressure resistant buffer tank 6 of gas by collecting 23 pipe UNICOMs of sampling again；The middle part of buffer tank 6
Outside configuration is higher than liquid level detecting sensor T2, the top mating gaseous pressure sensor P for collecting the interface of sampling pipe 23；Buffer tank
The return pipeline of 6 configurations not countercurrently, return pipeline is that bottom or end UNICOM in buffer tank 6 are led in end from the top of buffer tank 6
The configuration feed back pump PU and check (non-return) valve CV of feed back pipe 24 of the bottom of buffer tank 6, the head end of feed back pipe 24 connection highest thief hatch (or highest
And minimum thief hatch) between the sampling threeway of automatic sampling pipe 22 drawn and controlling of sampling valve V1 (or connection desalination crouch tank 1)；
Automatic sampling pipe 22 collects sampling pipe 23 and configures online profit detection sensor T1.
Control valve, liquid level detecting sensor T2, gaseous pressure sensor P and online profit detection sensor T1 and feed back pump
PU is electrically connected automatic controller 7.
Under the control of automatic controller 7：In all hand stop valve Vh1 standard-sized sheets and all manual sampling valve Vh2 and all
On the premise of control valve is fully closed, opening a controlling of sampling valve V1 makes medium flow to buffer tank 6, utilizes controlling of sampling valve V1 institutes
The online profit detection sensor T1 matched somebody with somebody in automatic sampling pipe 22 (or collecting sampling pipe) is carried out to medium character in sampling pipe
After delay detection, controlling of sampling valve V1 is closed；Treat that gaseous pressure is with taking off in the buffer tank 6 that gaseous pressure sensor P is detected
Salt crouch 1 pressure balance of tank when, using feed back pump PU and not medium in buffer tank is not transmitted back to the sleeping tank of desalination by return pipeline countercurrently
1, feed back pump PU stopping feed backs being closed when liquid level detecting sensor T2 detects its residing inner height of buffer tank 6 for gas phase；
Or under the control of automatic controller 7：In all hand stop valve Vh1 standard-sized sheets and all manual sampling valve Vh2 and
On the premise of all control valves are fully closed, opening a controlling of sampling valve V1 makes medium flow into buffer tank 6, treats gaseous pressure sensor
In the buffer tank 6 that device P is detected gaseous pressure and desalination crouch 1 pressure balance of tank when, using automatic where controlling of sampling valve V1
Sampling pipe 22 (or collecting sampling pipe) match somebody with somebody after line profit detection sensor T1 is detected to medium character in sampling pipe,
Close controlling of sampling valve V1；Using feed back pump PU and not medium in buffer tank 6 is not transmitted back to desalination and crouched by return pipeline countercurrently
Tank 1, closing feed back pump PU stops back when liquid level detecting sensor T2 detects its residing inner height of buffer tank 6 for gas phase
Material.The top of the buffer tank 6 connect up be configured to adjust buffer tank 6 prestore gas flow manual vent valve V8 it is (or automatic
Controller control atmospheric valve) blow-down pipe 28.
Specifically：Connect highest thief hatch (or highest and minimum thief hatch) draw the sampling threeway 31 of automatic sampling pipe with
The head section of feed back pipe 24 between controlling of sampling valve V1 is configured with feed back pump PU and opens time closed after front opening, feed back pump PU are closed
Expect control valve V2.
Specifically：The automatic sampling pipe 22 is in controlling of sampling valve V1 tracts concatenation two ends band end plate or blue disk, diameter
More than the horizontal detection pipe 40 of automatic sampling pipe diameter, the online profit detection sensor T1 configurations are in horizontal detection pipe 40
One end end plate or Lan Panshang.
Specifically：The latter end for collecting sampling pipe 23 in its Connection Cache tank 6 by the Zhi Santong that samples, match somebody with somebody downwards by connection
Manual sampling branch valve Vh3 sampling branch pipe 25.
More specifically：It is furnished with material storage container 8 in the lower section of sampling branch pipe 25.
Specifically：The liquid level detecting sensor T2 is configured in the middle and lower part side of buffer tank 6, described to collect sampling pipe 23
Interface is less than the liquid level detecting sensor T2 of buffer tank 6.It is described collect the interface of sampling pipe 23 to the bottom of buffer tank 6 distance be liquid level
Detection sensor T2 to the bottom distance of buffer tank 6 1/2 or so.
Specifically：The feed back pump PU is packed in above buffer tank 6.
Specifically：The sleeping bottom surface of tank 1 of the desalination, which draws to be connected to the sewage efferent duct 26 for leading to sewage-treatment plant and draw, to be connected to
Medium input pipe 27, the sewage efferent duct 26 and medium input pipe 27 are each configured with the DCS/PLC desalination control systems that are electrically connected
Sewage output control valve V3 and medium input control valve V4.
Specifically：Multiple thief hatch are centrally located in same plane, and the plane and the sleeping axis oblique of tank 1 of desalination.
Embodiment two, as shown in Fig. 2 the utility model electric desalting equipment oil-water interfaces on-line monitoring and control device and reality
The difference for applying example one is：The head end of feed back pipe 24 connects the automatic sampling that highest and minimum thief hatch (or highest thief hatch) are drawn
Between the sampling threeway of pipe 22 and controlling of sampling valve V1 (or the sleeping tank 1 of connection desalination)；
Under the control of automatic controller 7：In all hand stop valve Vh1 standard-sized sheets and all manual sampling valve Vh2 and all
On the premise of control valve is fully closed, open a controlling of sampling valve V1 medium is flowed to buffer tank 6, using collect sampling pipe 23 (or
Automatic sampling pipe where the person controlling of sampling valve) the online profit detection sensor T1 that matches somebody with somebody prolongs to medium character in sampling pipe
When detection after, close controlling of sampling valve V1；Treat gaseous pressure and desalination in the buffer tank 6 that gaseous pressure sensor P is detected
During sleeping 1 pressure balance of tank, using feed back pump PU and medium in buffer tank is not transmitted back to the sleeping tank 1 of desalination by return pipeline countercurrently,
Feed back pump PU, which is closed, when liquid level detecting sensor T2 detects its residing inner height of buffer tank 6 for gas phase stops feed back；
Or under the control of automatic controller 7：In all hand stop valve Vh1 standard-sized sheets and all manual sampling valve Vh2 and
On the premise of all control valves are fully closed, opening a controlling of sampling valve V1 makes medium flow into buffer tank 6, treats gaseous pressure sensor
In the buffer tank 6 that device P is detected gaseous pressure and desalination crouch 1 pressure balance of tank when, using collecting (or the sampling of sampling pipe 23
Automatic sampling pipe where control valve) match somebody with somebody after line profit detection sensor T1 is detected to medium character in sampling pipe, pass
Close controlling of sampling valve V1；Using feed back pump PU and not medium in buffer tank 6 is not transmitted back to desalination and crouched tank by return pipeline countercurrently
1, feed back pump PU stopping feed backs being closed when liquid level detecting sensor T2 detects its residing inner height of buffer tank 6 for gas phase.
The top of the buffer tank 6, which is connected up, to be configured to adjust the prestore manual vent valve V8 of gas flow of buffer tank 6 and (or automatically controls
Device control atmospheric valve) blow-down pipe 28.
Specifically：Connect highest and minimum thief hatch (or highest thief hatch) draw the sampling threeway 31 of automatic sampling pipe with
The head section of feed back pipe 24 between controlling of sampling valve V1 is configured with feed back pump PU and opens time closed after front opening, feed back pump PU are closed
Expect control valve V2.
Specifically：Medium from high-order thief hatch is transmitted back to the sampling threeway that highest thief hatch draws automatic sampling pipe 22
Feed back pipe 24 between 31 and controlling of sampling valve V1, the medium from low level thief hatch is transmitted back to minimum thief hatch extraction and adopted automatically
Feed back pipe 24 between the sampling threeway 31 of sample pipe 22 and controlling of sampling valve V1.
Specifically：It is described collect the concatenation two ends of sampling pipe 23 and be more than with end plate or blue disk, diameter collect sampling pipe diameter
Horizontal detection pipe 40, one end end plate or Lan Panshang of the online profit detection sensor T1 configurations in horizontal detection pipe 40.
It is in a word：Under intelligent controller control：In all hand stop valve standard-sized sheets and all manual sampling valves and all
On the premise of control valve is fully closed, by opening controlling of sampling valve, the material that desalination is crouched in tank is first set to be prestored by sampling pipe press-in
The buffer tank of gas is balanced to the sleeping pressure tank of caching pressure tank and desalination, then the online profit by being concatenated with the controlling of sampling valve
Medium character where detection sensor detects the controlling of sampling valve in sampling pipe, the medium character measured is exactly the sampling
Pipe draws medium character in the sleeping tank of desalination of the thief hatch position connect；When measuring highest order thief hatch medium for water, or
Other height thief hatch media are water and when more high-order thief hatch is oil, and intelligent controller is just the sampling that above-mentioned medium is water
Transmitted as real-time oil-water interfaces information to DCS/PLC desalinations control system mouth position.
The controlling of sampling valve on the sampling pipe of UNICOM's highest order thief hatch is opened, the material that desalination is crouched in tank is adopted by this
The sampling pipe that sample control valve is matched somebody with somebody is pressed into the buffer tank for the gas that prestores, the online profit detection sensor that the controlling of sampling valve string is matched somebody with somebody
Medium character in the sampling pipe is detected.
If testing result is water, a thief hatch high position is just transferred to the DCS/PLC desalinations for the signal of water and controlled
System, and close the controlling of sampling valve and open feed back control valve and feed back pump to the sleeping tank loopback material of desalination, until liquid level inspection
Survey sensor and can't detect liquid medium, close feed back pump and feed back control valve, terminate a sample detecting；
If testing result is oil, feed back control valve and feed back pump are turned on to the sleeping tank loopback material of desalination, until liquid level
Detection sensor can't detect liquid medium, close feed back pump and feed back control valve；UNICOM is opened again less than highest order thief hatch
The second high-order thief hatch sampling pipe on controlling of sampling valve, what the material for making desalination crouch in tank was matched somebody with somebody by the controlling of sampling valve
Sampling pipe is pressed into the buffer tank for the gas that prestores, the online profit detection sensor that the controlling of sampling valve string is matched somebody with somebody is in the sampling pipe
Medium character detected；And according to be detected as water or for oil result repeat foregoing correlation step respectively.
Wherein：The detection of the sleeping tank thief hatch liquid level medium character of desalination is under intelligent controller control：It is sleeping using desalination
Gas phase pressure difference makes the sampled pipe of medium in the sleeping tank of desalination flow into buffer tank in tank and buffer tank, utilizes online profit detection sensor
To flowing through or stream is deposited its desalination with sampling pipe medium character in tank that crouches and detected, and directly or according to needing testing result
Or detection judged result sends DCS/PLC desalination control systems to；Medium in buffer tank is transmitted back into desalination using feed back pump to crouch
Tank, makes gaseous pressure in buffer tank be less than gaseous pressure in the sleeping tank of desalination.
The detection of the sleeping tank thief hatch liquid level medium character of desalination is under intelligent controller control：In all manual shutoffs
On the premise of valve standard-sized sheet and all manual sampling valves and all control valves are fully closed, open the thief hatch and draw adopting for sampling pipe configuration
Sample control valve, makes medium sampled pipe in the case where pressure inside the tank is crouched in desalination in the sleeping tank of desalination flow into buffer tank to gaseous pressure sensor
Detect gaseous pressure and desalination in surge tank crouch pressure inside the tank balance when, utilize the online profit detection of sampling pipe configuration to pass
Sensor is to flowing through or stream is deposited the medium character of the sampling pipe and detected, and directly or according to needing to sentence testing result or detection
Disconnected result sends DCS/PLC desalination control systems to；When in the buffer tank that gaseous pressure sensor is detected gaseous pressure with it is de-
When the sleeping pressure inside the tank of salt is balanced, close the controlling of sampling valve and open feed back control valve and feed back pump to the sleeping tank loopback thing of desalination
Material, until liquid level detecting sensor can't detect liquid medium, closes feed back pump and feed back control valve.
When open the thief hatch draw sampling pipe configuration controlling of sampling valve after, make desalination crouch tank in medium desalination crouch tank
Sampled pipe flows into buffer tank to gaseous pressure sensor and detected in surge tank in gaseous pressure and the sleeping tank of desalination under interior pressure
Pressure balance constantly, first detects in line profit detection sensor and closes the controlling of sampling valve in sampling pipe after medium or first close
The controlling of sampling valve detects medium in sampling pipe after line profit detection sensor, then opens feed back control valve and feed back pump to de-
The sleeping tank loopback material of salt, until liquid level detecting sensor can't detect liquid medium, closes feed back pump and feed back control valve.
The detection of the sleeping tank oil-water interface of desalination is under intelligent controller control, to detect successively from high to low or from low to high
The medium character of each thief hatch liquid level of the sleeping tank of desalination：
When detecting from high to low, if the medium for detecting highest order thief hatch liquid level is water, sentenced by intelligent controller
Determine desalination and crouch tank oil-water interface at highest thief hatch, and transmitted to DCS/PLC desalinations control system；If detected two high
When the medium of low phase neighbour's thief hatch liquid level is respectively oil and water, then judge that the sleeping tank oil-water interface of desalination is low at this by intelligent controller
At thief hatch, and transmitted to DCS/PLC desalinations control system；When detecting from low to high, if detecting lowest order sampling oral fluid
The medium of position is oil, then judges that desalination crouches tank oil-water interface below minimum thief hatch by intelligent controller, and de- to DCS/PLC
Salt control system is transmitted；If the medium for detecting two height neighbouring sample oral fluid positions is respectively oil and water, by intelligence
Controller judges that desalination crouches tank oil-water interface at the low thief hatch, and is transmitted to DCS/PLC desalinations control system.
After adopting the above technical scheme, the utility model electric desalting equipment oil-water interfaces on-line monitoring and control device have
High-frequency water level detecting can be carried out, is avoided that discharge oiliness is situated between again, the advantage of environment-friendly high-efficiency.
Claims (10)
1. a kind of electric desalting equipment oil-water interfaces on-line monitoring and control device, in the sleeping tank of the closed pressure resistant desalination of electric desalting equipment
Multiple manual sampling pipes for being equipped with hand stop valve and manual sampling valve side by side, respectively that many equation of equal altitude positions thief hatch is drawn, electricity
The DCS/PLC desalinations control system of desalter carries out corresponding desalination according to oil-water interface position in the sleeping tank of the desalination measured in real time
Control, it is characterised in that every manual sampling pipe is drawn by threeway of sampling respectively between its hand stop valve and manual sampling valve
Go out to match somebody with somebody the automatic sampling pipe of controlling of sampling valve, multiple sampling pipes automatic side by side prestore the close of gas by collecting sampling pipe UNICOM again
Close pressure-resistant buffer tank bottom；Outside configuration is matched somebody with somebody higher than the liquid level detecting sensor of sampling interface tube, top is collected in the middle part of buffer tank
Connect gaseous pressure sensor；Buffer tank configuration return pipeline not countercurrently, it is slow that return pipeline is that end is led to from the top of buffer tank
The feed back pipe configuration feed back pump and check (non-return) valve of bottom or end UNICOM buffer tank bottom in tank are deposited, the connection desalination of feed back tube head end is crouched
The sampling threeway and controlling of sampling valve for the automatic sampling pipe that tank or connection highest thief hatch or highest and minimum thief hatch are drawn it
Between；Automatic sampling pipe collects the online profit detection sensor of sampling pipe configuration；
Control valve, liquid level detecting sensor, gaseous pressure sensor and online profit detection sensor and feed back pump are electrically connected automatically
Controller.
2. device according to claim 1, it is characterised in that what connection highest thief hatch or highest and minimum thief hatch were drawn
Feed back tube head section between sampling threeway and the controlling of sampling valve of automatic sampling pipe is configured with feed back pump and opens front opening, feed back pump
The feed back control valve closed after closing.
3. device according to claim 2, it is characterised in that the automatic sampling pipe drawn when connection highest and minimum thief hatch
Sampling threeway and controlling of sampling valve between feed back tube head section be configured with feed back pump and open after front opening, feed back pump are closed and close
Feed back control valve when, the medium from high-order thief hatch be transmitted back to highest thief hatch extraction automatic sampling pipe sampling threeway
Feed back pipe between controlling of sampling valve, the medium from low level thief hatch is transmitted back to the automatic sampling pipe that minimum thief hatch is drawn
Sampling threeway and controlling of sampling valve between feed back pipe.
4. device according to claim 1, it is characterised in that the automatic sampling pipe concatenates two in controlling of sampling valve tract
Hold the horizontal detection pipe for being more than automatic sampling pipe diameter with end plate or blue disk, diameter, the online profit detection sensor configuration
In one end end plate or Lan Panshang of horizontal detection pipe；
The sampling pipe concatenation two ends of collecting are more than the horizontal detection pipe for collecting sampling pipe diameter, institute with end plate or blue disk, diameter
State one end end plate or Lan Panshang of the online profit detection sensor configuration in horizontal detection pipe.
5. device according to claim 1, it is characterised in that the sampling pipe that collects passes through in the latter end of its Connection Cache tank
The sampling branch pipe of sampling branch valve manually is matched somebody with somebody in Zhi Santong connections downwards of sampling.
6. device according to claim 5, it is characterised in that be furnished with material storage container below the sampling branch pipe.
7. device according to claim 1, it is characterised in that the liquid level detecting sensor configuration is in the middle and lower part of buffer tank
Sideways, it is described to collect the liquid level detecting sensor that sampling interface tube is less than buffer tank；The sampling interface tube that collects is to buffer tank
The distance at bottom is liquid level detecting sensor to 1/2 or so of buffer tank bottom distance.
8. device according to claim 1, it is characterised in that the feed back pump is packed in above buffer tank.
9. device according to claim 1, it is characterised in that draw to be connected to and leads to sewage-treatment plant in desalination tank bottom face of crouching
Sewage efferent duct and draw and be connected to medium input pipe, the sewage efferent duct and medium input pipe are each configured with the DCS/ that is electrically connected
The sewage output control valve and medium input control valve of PLC desalination control systems.
10. device according to claim 1, it is characterised in that multiple thief hatch are centrally located in same plane, and this is flat
Face and the sleeping tank axis oblique of desalination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621313805.2U CN206430781U (en) | 2016-12-02 | 2016-12-02 | Electric desalting equipment oil-water interfaces are monitored on-line and control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621313805.2U CN206430781U (en) | 2016-12-02 | 2016-12-02 | Electric desalting equipment oil-water interfaces are monitored on-line and control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206430781U true CN206430781U (en) | 2017-08-22 |
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ID=59586257
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621313805.2U Active CN206430781U (en) | 2016-12-02 | 2016-12-02 | Electric desalting equipment oil-water interfaces are monitored on-line and control device |
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| CN (1) | CN206430781U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108051478A (en) * | 2018-01-24 | 2018-05-18 | 北京北方科诚信息技术股份有限公司 | A kind of automatic water-stopping device of continuous sampling detection |
| CN113133427A (en) * | 2021-03-22 | 2021-07-20 | 张孟哲 | Seawater cylinder water replenishing and changing device and water replenishing and changing method thereof |
-
2016
- 2016-12-02 CN CN201621313805.2U patent/CN206430781U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108051478A (en) * | 2018-01-24 | 2018-05-18 | 北京北方科诚信息技术股份有限公司 | A kind of automatic water-stopping device of continuous sampling detection |
| CN113133427A (en) * | 2021-03-22 | 2021-07-20 | 张孟哲 | Seawater cylinder water replenishing and changing device and water replenishing and changing method thereof |
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Effective date of registration: 20210401 Address after: 239000, No. 350, Nanjing North Road, Chuzhou City, Anhui Province Patentee after: KAITAI (CHUZHOU) FLUID CONTROL Co.,Ltd. Address before: 100101 room 1201, unit 1, block a, Kaixuan City, 170 Beiyuan Road, Chaoyang District, Beijing Patentee before: Gao Xiang |