阅读说明：本技术 油品脱水装置及油品脱水方法 (Oil product dehydration device and oil product dehydration method ) 是由 方尽娆 金兆杰 杨波 吕桐 杜鹏举 许靖霄 于 2021-09-30 设计创作，主要内容包括：本发明公开了一种油品脱水装置及油品脱水方法,涉及油类脱水技术领域,包括脱水管和控制器,脱水管上设置有至少两个第一传感器,各第一传感器设置在脱水管的不同高度且位置最高的第一传感器低于脱水管进口的最低面,各第一传感器用于检测脱水管内该位置的液体为水或非水,脱水管出口上设置有第一阀门,控制器能够根据各第一传感器检测的液体种类对第一阀门开启程度进行控制。通过多个传感器方式共同检测脱水管内不同位置液体是水还是非水,进而精确控制第一阀门的开启程度,调整排水快慢,降低排水过程中因湍流导致的油水混合的情况,从而稳定的使脱水管内油水进行分离,并排出其水分,使得脱水完全,降低脱水带油情况的出现。(The invention discloses an oil product dehydration device and an oil product dehydration method, and relates to the technical field of oil product dehydration. Detect different position liquid in the dehydration tube through a plurality of sensor modes jointly and be water or non-water, and then the degree of opening of the first valve of accurate control, the adjustment drainage is fast slow, reduces the condition of the water oil mixing that the drainage in-process leads to because of the torrent to stable messenger's interior profit of dehydration tube separates, discharges its moisture, makes the dehydration complete, reduces the emergence of the oily condition of dehydration area.)

1. An oil dewatering device which is characterized in that: the device comprises a dewatering pipe and a controller, wherein an inlet of the dewatering pipe is used for being communicated with the bottom of the side wall of a storage tank of oil, at least two first sensors are arranged on the dewatering pipe, the first sensors are arranged at different heights of the dewatering pipe and are highest in position in the first sensors and are lower than the lowest surface of the inlet of the dewatering pipe, each first sensor is used for detecting liquid at the position in the dewatering pipe, the liquid is water or non-water, a first valve is arranged on an outlet of the dewatering pipe, the controller is electrically connected with the first valve and each first sensor, and the controller can control the opening degree of the first valve according to the type of the liquid at the position detected by each first sensor.

2. The oil dewatering device of claim 1, further comprising: the dehydration pipe includes inlet tube, test tube and drain pipe, the inlet tube is higher than the drain pipe, the inlet tube with test tube access connection and intercommunication, just the drain pipe with test tube exit linkage and intercommunication, the inlet tube be used for with the holding vessel lateral wall bottom intercommunication of oil, each first sensor all sets up on the lateral wall of test tube and each first sensor highly reduces the setting in proper order along the liquid flow direction, is close to the first of inlet tube highly be less than the minimum of inlet tube is close to the first of drain pipe first sensor highly be higher than the highest face of drain pipe, first valve setting is in on the drain pipe.

3. The oil dewatering device of claim 2, further comprising: the automatic water-saving device is characterized by further comprising a second sensor and a second valve, wherein the second sensor is arranged on the detection pipe and is lower than the first sensor at the bottommost part in height, the second sensor is used for detecting the type of liquid at the position of the second sensor, the second valve is arranged on the drain pipe and is located on the rear side of the first valve along the drainage direction, the controller is electrically connected with the second sensor and the second valve, and the controller can control the second valve to be opened or closed according to the type of liquid at the position detected by the second sensor.

4. The oil dewatering device of claim 2, further comprising: still be provided with the sight glass on the terminal lateral wall of drain pipe, personnel can pass through the sight glass observes liquid in the drain pipe.

5. The oil dewatering device of claim 4, further comprising: be provided with the through-hole on the sight glass, the sight glass inside is provided with the scraper blade, the laminating of scraper blade one side the sight glass inner wall, wear to be equipped with the connecting rod in the through-hole, connecting rod one end with scraper blade fixed connection just the other end of connecting rod extends the outer wall of sight glass just this end of connecting rod is provided with rotatory handle, the connecting rod can the through-hole internal seal just rotates.

6. The oil dewatering device of claim 1, further comprising: the device is characterized by further comprising a weak current box, the controller is fixedly arranged in the weak current box, a liquid crystal display screen is further arranged in the weak current box, the liquid crystal display screen is electrically connected with the controller, and the liquid crystal display screen is used for displaying the dehydration state and setting parameters.

7. The oil dewatering device of claim 6, further comprising: the device comprises a controller, a liquid crystal display screen, a strong electric box and a transformation device, wherein the controller is used for controlling the liquid crystal display screen to display images, the strong electric box is internally provided with the transformation device, the transformation device is respectively electrically connected with the controller and the liquid crystal display screen, and the transformation device is used for changing voltage and inputting the voltage to the controller and the liquid crystal display screen.

8. The oil dewatering device of claim 2, further comprising: still include oil return device, oil return device's entry with the inlet tube intercommunication, oil return device's export be used for with the holding vessel intercommunication of oil.

9. The oil dewatering device of claim 1, further comprising: still include heating device, heating device sets up the dehydration tube outer wall.

10. An oil product dehydration method based on the oil product dehydration device of any one of claims 1 to 9, characterized in that: comprises the following steps of (a) carrying out,

the method comprises the following steps: communicating the inlet of the dehydrator with the bottom of the side wall of the oil product storage tank;

step two: the controller can reduce the opening degree of the first valve in a positive correlation manner along with the detection of non-water by more and more first sensors, and when the first sensors with the number ratio of 1/3 or less (including 1/3) detect water, the controller immediately closes the first valve to stop the dehydration.

Step three: and after the first valve is closed and the oil-water static stratification in the dehydration pipe causes the change of the liquid information detected by each first sensor, repeating the operation in the second step until the first sensors with the quantity ratio of below 1/3 (including 1/3) detect that the first sensors detect water, and closing the first valve by the controller to stop the dehydration.

Technical Field

The invention relates to the technical field of oil dehydration, in particular to an oil product dehydration device and an oil product dehydration method.

Background

In the field of petrochemical industry, crude oil and finished oil are dehydrated to ensure safe production and product quality. At present, the domestic dehydration method of petroleum and finished oil mainly comprises manual dehydration and automatic dehydration. The automatic dewatering device is mainly divided into two types, one is mechanical type, and the other is electronic type. The main principle of the machinery is that oil and water generate different buoyancy on the floater, so that the mechanical device is driven to dewater. The electronic type principle is that various electronic sensors are used for detecting oil and water, so that the electric valve is driven to dewater. At present, an electronic dehydration mode mainly comprises an oil-water detection sensor and an electric switch valve, wherein the oil-water detection sensor controls the electric switch valve to be opened to perform dehydration when detecting water, and otherwise, the electric switch valve is closed. The single sensor detection and valve is insufficient in adaptability under some special dehydration conditions, incomplete dehydration or dehydration with oil is easy to occur, a secondary protection device is lacked, and leakage risks can be caused under the condition that a main control system breaks down.

Disclosure of Invention

The invention aims to provide an oil product dehydration device and an oil product dehydration method, which are used for solving the problems in the prior art, completely dehydrating and reducing the phenomenon of oil carrying in dehydration.

In order to achieve the purpose, the invention provides the following scheme:

the invention provides an oil product dehydration device, which comprises a dehydration pipe and a controller, wherein an inlet of the dehydration pipe is used for being communicated with the bottom of the side wall of a storage tank of oil products, at least two first sensors are arranged on the dehydration pipe, the first sensors are arranged at different heights of the dehydration pipe, the first sensor with the highest position in the first sensors is lower than the lowest surface of the inlet of the dehydration pipe, each first sensor is used for detecting whether liquid at the position in the dehydration pipe is water or non-water, a first valve is arranged on an outlet of the dehydration pipe, the controller is electrically connected with the first valve and each first sensor, and the controller can control the opening degree of the first valve according to the type of the liquid at the position detected by each first sensor.

Preferably, the dehydration pipe includes inlet tube, test tube and drain pipe, the inlet tube is higher than the drain pipe, the inlet tube with test tube access connection and intercommunication, just the drain pipe with test tube exit linkage and intercommunication, the inlet tube be used for with the holding vessel lateral wall bottom intercommunication of oil, each first sensor all sets up on the lateral wall of test tube and each first sensor highly reduces the setting in proper order along the liquid flow direction, is close to the first of inlet tube highly be less than the minimumly of inlet tube is close to the first of drain pipe first sensor highly be higher than the highest face of drain pipe, first valve setting is in on the drain pipe.

Preferably, the liquid level detection device further comprises a second sensor and a second valve, the second sensor is arranged on the detection pipe and is lower than the first sensor at the bottommost part, the second sensor is used for detecting the liquid type at the position of the second sensor, the second valve is arranged on the drain pipe and is positioned at the rear side of the first valve along the drainage direction, the controller is electrically connected with the second sensor and the second valve, and the controller can control the second valve to open or close according to the liquid type at the position detected by the second sensor.

Preferably, the side wall of the tail end of the drain pipe is further provided with an observation mirror, and a person can observe the liquid in the drain pipe through the observation mirror.

Preferably, be provided with the through-hole on the sight glass, the sight glass inside is provided with the scraper blade, the laminating of scraper blade one side the sight glass inner wall, wear to be equipped with the connecting rod in the through-hole, connecting rod one end with scraper blade fixed connection just the other end of connecting rod extends the outer wall of sight glass just this end of connecting rod is provided with rotatory handle, the connecting rod can through-hole inner seal just rotates.

Preferably, still include the weak current case, the controller is fixed to be set up in the weak current incasement, still be provided with liquid crystal display in the weak current incasement, liquid crystal display with the controller electricity is connected, liquid crystal display is used for showing dehydration state and setting parameter.

Preferably, the device also comprises a strong electric box, wherein a voltage transformation device is arranged in the strong electric box, the voltage transformation device is respectively and electrically connected with the controller and the liquid crystal display screen, and the voltage transformation device is used for changing voltage and inputting the voltage to the controller and the liquid crystal display screen.

Preferably, still include oil return device, oil return device's entry with the inlet tube intercommunication, oil return device's export is used for the holding vessel intercommunication with the oil.

Preferably, the device further comprises a heating device, and the heating device is arranged on the outer wall of the dehydration tube.

The invention also provides an oil product dehydration method based on any one of the oil product dehydration devices, which comprises the following steps:

the method comprises the following steps: communicating the inlet of the dehydrator with the bottom of the side wall of the oil product storage tank;

step two: the controller can reduce the opening degree of the first valve in a positive correlation manner along with the detection of non-water by more and more first sensors, and when the first sensors with the number ratio of 1/3 or less (including 1/3) detect water, the controller immediately closes the first valve to stop the dehydration.

Step three: and after the first valve is closed and the oil-water static stratification in the dehydration pipe causes the change of the liquid information detected by each first sensor, repeating the operation in the second step until the first sensors with the quantity ratio of below 1/3 (including 1/3) detect that the first sensors detect water, and closing the first valve by the controller to stop the dehydration.

Compared with the prior art, the invention has the following technical effects:

according to the oil product dehydration device provided by the invention, the liquid states at different positions in the dehydration pipe are jointly detected in a mode of adopting a plurality of sensors, namely whether the liquid is water or non-water, the sensors at the different positions can accurately detect the liquid state in the dehydration pipe, so that the opening degree of the first valve is effectively controlled, the water drainage speed is adjusted, and the condition of oil-water mixing caused by turbulence in the water drainage process is reduced, so that the oil-water in the dehydration pipe is stably separated, the water is discharged, the dehydration is complete, and the oil-carrying condition of the dehydration is reduced.

Furthermore, the entry of test tube is higher than the export, and sets up a plurality of first sensors at the co-altitude of test tube, and each first sensor can monitor whether the liquid of each position is water or non-water, and the different opening degree of the first valve of different position liquid kind control of controller through each first sensor response carries out the drainage operation, guarantees that the oil dehydration in the oil storage tank is complete.

Furthermore, the second sensor is arranged below the first sensor at the bottommost part of the detection pipe, the second valve is arranged at the tail end of the drain pipe, and when the second sensor detects the liquid state in the detection pipe at the position, the controller can control the second valve to be opened and closed to form the oil leakage prevention protection device of the oil product dehydration device and prevent oil leakage.

Furthermore, an observation mirror is further arranged on the side wall of the drain pipe, so that an operator can observe the liquid drainage state in the pipeline through the observation mirror, and the normal operation of the device is ensured.

Further, the sight glass inner wall still is provided with the scraper blade, and when leading to the sight glass inner wall to be dirty to see owing to deposit debris, can will observe the sight glass inner wall clean through the scraper blade, guarantee that the vision of personnel observation liquid in the pipeline is not influenced, and the rotatory handle that the other end of connecting rod set up makes things convenient for personnel to operate the scraper blade.

Further, adopt the light current case to be used for placing controller and liquid crystal display, make each parts regular place, the personnel only in the light current case to its operate can, simple and convenient, and liquid crystal display can display system's operating condition, make things convenient for personnel to look over, and liquid crystal display can also carry out operation control through infrared remote controller, realize system operation parameter's adjustment and setting, make things convenient for personnel to debug.

Furthermore, an independent strong power box is arranged, and a voltage transformation device arranged in the strong power box is used for converting the accessed 220V alternating current commercial power into a low-voltage direct current power supply to a controller and a liquid crystal display screen in the weak power box, so that the normal working operation of the controller and the liquid crystal display screen is ensured.

Further, after the oil in the oil storage tank is dehydrated, the oil in the pipeline between the oil storage tank and the dewatering pipe inlet connection can be pumped back to the oil storage tank through the oil return device, and the oil waste is avoided.

Furthermore, still be provided with heating device on the dehydration tube outer wall, heating device can heat the dehydration tube, prevents that the liquid in the dehydration tube from freezing and leading to dehydration work to be unable to go on under the environment that the temperature is low.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of the oil product dehydration device provided by the present invention.

In the figure: 100-oil dehydration plant; 1-a dewatering pipe; 11-a water inlet pipe; 12-a detection tube; 13-a drain pipe; 14-a sight glass; 2-a weak current box; 3-a first sensor; 4-a first valve; 5-a second sensor; 6-a second valve; 7-strong electric box.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention aims to provide an oil product dehydration device and an oil product dehydration method, which are used for solving the problems in the prior art, completely dehydrating and reducing the phenomenon of oil carrying in dehydration.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

Example one

The invention provides an oil product dehydration device 100, which comprises a dehydration pipe 1 and a controller, wherein the inlet of the dehydration pipe 1 is used for being communicated with the bottom of the side wall of a storage tank of oil products, specifically, the lowest surface of the inlet of the dehydration pipe 1 and the lowest surface of the storage tank of the oil products are positioned on the same plane, at least two first sensors 3 are arranged on the dehydration pipe 1, specifically, the number of each first sensor 3 is preferably 3, the first sensors are all ultrasonic probes, echo signals reflected by the wall in a detection pipeline are detected, the controller calculates through the echo time received by each ultrasonic probe so as to judge whether water or non-water is in the detection pipeline, each first sensor 3 is arranged at different heights of the dehydration pipe 1, the highest first sensor 3 in each first sensor 3 is lower than the lowest surface of the inlet of the dehydration pipe 1, each first sensor 3 is used for detecting whether the liquid at the position in the dehydration pipe 1 is water or non-water, specifically, the non-water includes the water that contains oil and all is two kinds of condition of oil, is provided with first valve 4 on the export of dehydration pipe 1, and the controller is connected with first valve 4 and each first sensor 3 is all electrically, and the controller can be according to this position liquid kind that each first sensor 3 detected to the degree of opening of first valve 4 control. Through the mode that adopts a plurality of sensors, detect different position liquid state in the dehydration pipe 1 jointly, liquid is water or non-water promptly, the sensor of a plurality of different positions can the accurate detection dehydration pipe 1 interior liquid state, and then the degree of opening of the first valve of effective control 4, the adjustment drainage is fast slow, reduce the condition of the water oil mixing that the drainage in-process leads to because of the torrent, thereby the stable oily water that makes in the dehydration pipe 1 separates, discharge its moisture side by side, make the dehydration complete, reduce the emergence of the oily condition of dehydration area.

Dewatering pipe 1 includes inlet tube 11, test tube 12 and drain pipe 13, inlet tube 11 is higher than drain pipe 13, it is specific, test tube 12 downward sloping 30, its buoyancy of utilization oil in aqueous that can be fine offsets the impulsive force of rivers, inlet tube 11 and test tube 12 access connection and intercommunication, and drain pipe 13 and test tube 12 exit linkage and intercommunication, inlet tube 11 is used for the holding vessel lateral wall bottom intercommunication with the oil, each first sensor 3 all sets up on test tube 12's lateral wall and each first sensor 3 highly reduces the setting in proper order along the liquid flow direction, the height that is less than inlet tube 11 of the first sensor 3 that is close to inlet tube 11 is the minimum face of inlet tube 11, the first sensor 3 that is close to drain pipe 13 highly is higher than drain pipe 13's the highest face, first valve 4 sets up on drain pipe 13. The entry of detecting tube 12 is higher than the export, and sets up a plurality of first sensors 3 at the co-altitude of detecting tube 12, and each first sensor 3 can monitor whether the liquid of each position is water or non-water, and the controller carries out the drainage operation through the different opening degree of the different position liquid kind control first valve 4 of each first sensor 3 response, guarantees that the oil dehydration in the oil storage tank is complete.

The oil product dewatering device 100 further comprises a second sensor 5 and a second valve 6, specifically, the second sensor 5 is a micro-nano probe, the second sensor 5 is arranged on the detection pipe 12 and is lower than the first sensor 3 at the bottommost part, the second sensor 5 is used for detecting the liquid type at the position of the second sensor 5, the second valve 6 is arranged on the drain pipe 13 and is located at the rear side of the first valve 4 along the drainage direction, the controller is electrically connected with the second sensor 5 and the second valve 6, and the controller can control the second valve 6 to be opened or closed according to the liquid type at the position detected by the second sensor 5. The second sensor 5 is further arranged below the first sensor 3 at the bottommost part of the detection pipe 12, the second valve 6 is further arranged at the tail end of the drain pipe 13, and when the second sensor 5 detects the state of the liquid in the detection pipe 12 at the position, the controller can control the second valve 6 to be opened and closed, so that an oil leakage prevention protection device of the oil product dehydration device 100 is formed and oil leakage is prevented.

The side wall of the tail end of the drain pipe 13 is also provided with an observation mirror 14, and a person can observe the liquid in the drain pipe 13 through the observation mirror 14. An observation mirror 14 is further arranged on the side wall of the drain pipe 13, and an operator can observe the liquid drainage state in the pipeline through the observation mirror 14 to ensure the normal operation of the device.

Be provided with the through-hole on the sight glass 14, the inside scraper blade that is provided with of sight glass 14, 14 inner walls of scraper blade one side laminating sight glass wear to be equipped with the connecting rod in the through-hole, and connecting rod one end and scraper blade fixed connection and the other end of connecting rod extend the outer wall of sight glass 14 and this end of connecting rod is provided with rotatory handle, and the connecting rod can be sealed and rotate in the through-hole. 14 inner walls of observation mirror still are provided with the scraper blade, and when leading to 14 inner walls of observation mirror dirty to see owing to deposit debris, can be clean with 14 inner walls of observation mirror through the scraper blade, guarantee that the view of personnel observation pipeline interior liquid is not influenced, and the rotatory handle of the other end setting of connecting rod makes things convenient for personnel to operate the scraper blade.

The oil product dehydration device 100 further comprises a weak current box 2, the controller is fixedly arranged in the weak current box 2, a liquid crystal display screen is further arranged in the weak current box 2, the liquid crystal display screen is electrically connected with the controller, and the liquid crystal display screen is used for displaying the dehydration state and setting parameters. Adopt weak electronic box 2 to be used for placing controller and liquid crystal display, make each parts regular place, the personnel only in weak electronic box 2 operate it can, simple and convenient, and liquid crystal display can display system's operating condition, make things convenient for personnel to look over, and liquid crystal display can also carry out operation control through infrared remote controller, realize system operating parameter's adjustment and setting, make things convenient for personnel to debug.

The oil product dehydration device 100 further comprises a strong electric box 7, wherein a voltage transformation device is arranged in the strong electric box 7, the voltage transformation device is respectively and electrically connected with the controller and the liquid crystal display screen, and the voltage transformation device is used for changing voltage and inputting the voltage to the controller and the liquid crystal display screen. An independent strong power box 7 is arranged, and a voltage transformation device arranged in the strong power box 7 is used for converting an accessed 220V alternating current commercial power into a low-voltage direct current power supply to a controller and a liquid crystal display screen in the weak power box 2, so that the normal working operation of the controller and the liquid crystal display screen is ensured.

The oil product dehydration device 100 further comprises an oil return device, an inlet of the oil return device is communicated with the water inlet pipe 11, and an outlet of the oil return device is communicated with a storage tank of the oil product. After the oil in the oil storage tank is dehydrated, the oil in the pipeline between the oil storage tank and the inlet connection of the dehydration pipe 1 can be pumped back into the oil storage tank through the oil return device, so that the waste of the oil is avoided.

The oil product dehydration device 100 further comprises a heating device, and the heating device is arranged on the outer wall of the dehydration tube 1. Still be provided with heating device on the dehydration tube 1 outer wall, heating device can heat dehydration tube 1, prevents that the liquid in the dehydration tube 1 from freezing and leading to dehydration work to be unable to go on under the environment that temperature is low.

Example two

The invention also provides an oil product dehydration method based on any one of the oil product dehydration devices 100, which comprises the following steps:

the method comprises the following steps: communicating the inlet of the dehydrator with the bottom of the side wall of the oil product storage tank;

step two: the controller gradually decreases the opening of the first valve 4 in positive correlation with the detection of non-water by more and more first sensors 3, and immediately closes the first valve to stop the dehydration when the first sensors with the number of 1/3 or less (1/3 included) detect water.

Specifically, the number of the first sensors 3 is 3, and when all the 3 first sensors 3 detect water, the controller opens the first valve 4 according to a set initial opening, a certain opening rate and a maximum opening in the process; when one first sensor 3 detects that the water is not water, the controller reduces the opening of the first valve 4 according to the current opening multiplied by a certain opening keeping ratio; when 2 or 3 first sensors 3 detect that water is not contained, the controller immediately closes the first valve 4 to stop dehydration.

Step three: and after the first valve 4 is closed and the oil-water in the dehydration pipe 1 is still layered to cause that the liquid information detected by each first sensor 3 is changed, repeating the operation of the second step until the first sensors 3 with the quantity ratio of below 1/3 detect that the water is detected, and closing the first valve 4 by the controller to stop the dehydration.

The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.