CN204999780U - Oil field special ultrasonic wave sewage sludge deoiling is equipped - Google Patents

Abstract

The utility model relates to a special ultrasonic sludge deoiling equipment for oil fields, comprising an ultrasonic sludge separation system (1) and an oil-water and liquid-solid separation system (2), the ultrasonic sludge separation system (1) can transport the sludge In the ultrasonic sludge separation tank (1-1), the ultrasonic transducer (1-4) fixed on the ultrasonic sludge separation tank (1-1) is connected to the ultrasonic sludge separation tank (1-1). The sludge in -1) is subjected to ultrasonic vibration, and the sludge is vibrated by the ultrasonic transducer (1-4), and then the crude oil is separated by the oil-water and liquid-solid separation system (2). This equipment solves the problems of high energy consumption, environmental pollution, and complicated process in the separation process of sludge and crude oil in the prior art, and has the characteristics of fast sludge treatment speed, high efficiency, flexible maneuverability and strong mobility.

Description

A special ultrasonic sludge deoiling equipment for oil fields

technical field

The utility model relates to a sludge deoiling treatment equipment, in particular to a special ultrasonic sludge deoiling treatment equipment for an oil field.

Background technique

The relevant technical background of the present utility model is described below, but these descriptions do not necessarily constitute the prior art of the present utility model.

Sludge is a common solid waste in the process of oil extraction, storage and processing. The oily sludge has a high content of petroleum pollutants, so it is included in the "National List of Hazardous Wastes". At present, solvent extraction, hot water washing, thermal decomposition and biological treatment are commonly used in the treatment of sludge in China.

The solvent extraction method is more complicated and time-consuming in the treatment of sludge. The hot water washing method needs to select the appropriate alkaline hot water according to the characteristics of the sludge, and the treated wastewater must be treated again before it can be discharged, which may cause secondary pollution. The thermal decomposition method uses different cracking reactions of crude oil at different temperatures to separate the crude oil in the sludge, so the energy consumption of this method is too high and the process is complicated. The biological treatment method uses microorganisms to degrade the sludge so as to make the sludge meet the discharge standard, and this method will not produce benefits. These treatment methods for sludge have relatively complex process requirements, and different treatment methods must be adopted for different sludge, which consumes a lot of energy, is not environmentally friendly or does not produce economic benefits.

Ultrasonic technology has the advantages of low energy consumption, high efficiency, short reaction time, simple facilities, and small footprint, and is widely used in various fields such as industry, agriculture, medicine, biology, and chemical engineering. As shown in Figure 1 of the description, the schematic diagram of the ultrasonic deoiling process of oily sand is an experimental research plan for ultrasonic treatment of oily sand deoiling proposed by Yang Jisheng et al. of Yangzhou University. This solution has the following disadvantages: First, the treatment process of sludge in this solution is relatively complicated, and the equipment involved is high in energy consumption, and too many equipment means higher risk and maintenance cost for the series working system. Secondly, the form of the transducer is the horn type, and the range of the oil sludge it acts on is small, and it is difficult to achieve high power due to the limitation of the structure of the horn type transducer, so the treatment of sludge The speed has a certain degree of influence, and the matching of the action time and the flow rate cannot be achieved. Thirdly, because the scheme involves more operating equipment, it needs the support of a larger site, so the site selection and environmental protection put forward higher requirements.

Utility model content

The purpose of this utility model is to propose a special ultrasonic sludge deoiling equipment for oil fields, including an ultrasonic sludge separation system and an oil-water and liquid-solid separation system. The ultrasonic sludge separation system can transport the sludge to the ultrasonic sludge In the separation tank, the ultrasonic transducer fixed on the ultrasonic sludge separation tank performs ultrasonic vibration on the sludge in the ultrasonic sludge separation tank, and the sludge is vibrated by the ultrasonic transducer and then passes through the oil-water And the liquid-solid separation system to separate the crude oil.

In particular, the ultrasonic sludge separation system also includes a sludge lifting system, which is used to transport the sludge from the stirring and feeding tank to the ultrasonic sludge separation tank.

In particular, the bottom of the ultrasonic sludge separation tank is a conical sludge collector.

In particular, the ultrasonic sludge separation system further includes a sludge stirring system, which is used to stir the sludge in the ultrasonic sludge separation tank.

In particular, the ultrasonic transducer is connected to the ultrasonic power source through a multi-core transmission composite cable, the ultrasonic power source is connected to the control host and the monitoring system through the cable, and the control host and the monitoring system are connected to the display through the cable.

In particular, the ultrasonic sludge separation tank is placed on the mobile vehicle system in a flange connection; the ultrasonic transducer, the sludge lifting system and the sludge stirring system are fixed on the ultrasonic sludge On the reserved flange of the separation tank.

In particular, there are at least four ultrasonic transducers.

In particular, the oil-water and liquid-solid separation system includes an oil-water separation controller, a floating oil skimmer, an oil storage tank, and a water storage tank. The floating oil skimmer is placed in the ultrasonic sludge separation tank, and the plastic soft The pipe is connected with the oil-water separation controller, and the oil-water separation controller processes the mixture of crude oil and water and flows into the oil storage tank and the water storage tank respectively through the pipeline for storage.

In particular, the oil-water and liquid-solid separation system also includes a return system, and the water storage tank in the oil storage tank and the water storage tank is connected to the ultrasonic sludge separation tank through the return system to reuse the recovered water.

In particular, the oil-water and liquid-solid separation system also includes a solid-liquid separation controller, a sludge pump, a stirring feeding tank and a solid-liquid separator, and the sludge pump is placed in a conical sludge at the bottom of the ultrasonic sludge separation tank In the collector, the sludge pump transports the mud treated by the ultrasonic transducer to the solid-liquid separator, and the treated solid sediment is directly removed through the control of the solid-liquid separation controller, and the treated liquid is refluxed to the water storage tank, and the liquid in the water storage tank is connected with the ultrasonic sludge sludge separation tank through the return system to reuse the recovered water.

It can be seen from the above technical solution that the utility model provides a special ultrasonic sludge deoiling equipment for oil fields, which solves the shortcomings of high energy consumption, complicated process, polluted environment, large floor area and inflexibility in the deoiling process of sludge; Through the use of high-power transducers, the power density of the transducers is increased to achieve efficient sludge treatment; the process chain is shortened to reduce equipment investment through the integrated equipment structure; the control of several transducer technical parameters is simultaneously realized through the control system.

Description of drawings

The features and advantages of the present utility model will become easier to understand through the detailed description provided below with reference to the accompanying drawings. In the accompanying drawings:

Fig. 1 is the schematic flow chart of the ultrasonic deoiling process of sewage sludge in the prior art;

Fig. 2 is a schematic diagram of the special ultrasonic sludge deoiling treatment equipment for oil fields of the present application.

detailed description

Exemplary embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. The description of the exemplary embodiments is for the purpose of illustration only, and in no way limits the invention and its application or usage.

The purpose of this utility model is to propose a special ultrasonic sludge deoiling equipment for oil fields, including an ultrasonic sludge separation system and an oil-water and liquid-solid separation system. The ultrasonic sludge separation system can transport the sludge to the ultrasonic sludge In the separation tank, the ultrasonic transducer fixed on the ultrasonic sludge separation tank performs ultrasonic vibration on the sludge in the ultrasonic sludge separation tank, and the sludge is vibrated by the ultrasonic transducer and then passes through the oil-water And the liquid-solid separation system to separate the crude oil.

Four or more transducers are superimposed on the wavelengths, so that the transducers emit ultrasonic waves and cause mechanical vibrations to be strengthened, so that the particles of soil-encapsulated oil and oil-encapsulated soil are at the interface, because the crude oil particles and soil particles There is a huge difference in the vibration speed, which leads to boundary friction, heat generation, local heating, and even local high temperature, which reduces the viscosity of crude oil. The oil-in-soil and oil-in-soil particles are broken, and the clay particles are separated from the crude oil due to gravity and particle vibration, and the clay particles naturally settle.

Under the long-term ultrasonic action of crude oil, due to the relatively large acceleration between crude oil molecules and water molecules, the relative motion between molecules is formed. Due to the action of inertial force, the molecular chains of crude oil are broken and the macromolecules are crushed, thereby reducing the viscosity of crude oil. Oil-in-water and water-in-oil will vibrate strongly under the action of ultrasonic waves, and at the same time, the local high temperature and high pressure generated under the action of cavitation will break the molecular chain in crude oil, thus reducing the viscosity of crude oil. Cavitation promotes redox reactions, depolymerization of macromolecular substances, and breaks the molecular bonds of cemented asphaltene. In addition, the high temperature and pressure generated by cavitation will produce a series of secondary reactions, such as chemical effects, sonoluminescence, dispersion Effect and emulsification, etc., thereby reducing the viscosity of crude oil. And the transducer will generate a lot of heat during the working process. Under the action of high heat, the wax crystals in the separated crude oil will be dissolved to obtain higher fluidity, so that the oil-water mixture can pass through the floating oil skimmer more smoothly. It flows into the oil-water separation equipment to realize oil-water separation.

In particular, the ultrasonic sludge separation system includes a sludge lifting system, and the sludge lifting system is used to transport the sludge from the stirring and feeding tank to the ultrasonic sludge separation tank.

In particular, the bottom of the ultrasonic sludge separation tank is a conical sludge collector.

In particular, the ultrasonic sludge separation system further includes a sludge stirring system, which is used to stir the sludge in the ultrasonic sludge separation tank.

In particular, the ultrasonic transducer is connected to the ultrasonic power source through a multi-core transmission composite cable, the ultrasonic power source is connected to the control host and the monitoring system through the cable, and the control host and the monitoring system are connected to the display through the cable.

In particular, the ultrasonic sludge separation tank is placed on the mobile vehicle system in a flange connection; the ultrasonic transducer, the sludge lifting system and the sludge stirring system are fixed on the ultrasonic sludge On the reserved flange of the separation tank.

In particular, there are at least four ultrasonic transducers.

In particular, the oil-water and liquid-solid separation system includes an oil-water separation controller, a floating oil skimmer, an oil storage tank, and a water storage tank. The floating oil skimmer is placed in the ultrasonic sludge separation tank, and the plastic soft The pipe is connected with the oil-water separation controller, and the oil-water separation controller processes the mixture of crude oil and water and flows into the oil storage tank and the water storage tank respectively through the pipeline for storage.

In particular, the oil-water and liquid-solid separation system also includes a return system, and the water storage tank in the oil storage tank and the water storage tank is connected to the ultrasonic sludge separation tank through the return system to reuse the recycled water.

In particular, the oil-water and liquid-solid separation system also includes a solid-liquid separation controller, a sludge pump, a stirring feeding tank and a solid-liquid separator, and the sludge pump is placed in a conical sludge at the bottom of the ultrasonic sludge separation tank In the collector, the sludge pump transports the mud treated by the ultrasonic transducer to the solid-liquid separator, and the treated solid sediment is directly removed through the control of the solid-liquid separation controller, and the treated liquid is refluxed to the water storage tank, and the liquid in the water storage tank is connected with the ultrasonic sludge sludge separation tank through the return system to reuse the recovered water.

It can be seen from the above technical solution that the utility model provides a special ultrasonic sludge deoiling equipment for oil fields, which solves the shortcomings of high energy consumption, complicated process, polluted environment, large floor area and inflexibility in the deoiling process of sludge; Through the use of high-power transducers, the power density of the transducers is increased to achieve efficient sludge treatment; the process chain is shortened to reduce equipment investment through the integrated equipment structure; the control of several transducer technical parameters is simultaneously realized through the control system.

Although the present utility model has been described with reference to exemplary embodiments, it should be understood that the present utility model is not limited to the specific embodiments described and shown in detail herein, and that the present utility model shall not depart from the scope defined in the claims. Various changes to the exemplary embodiments may be made by those skilled in the art.

Claims (10)

1. an oil field special-purpose ultrasonic oil sludge de-oiling equipment, it is characterized in that comprising: ultrasonic wave oil sludge separation system (1) and profit and liquid-solid separation system (2), oil sludge can be transported in described ultrasonic wave oil sludge separating tank (1-1) by described ultrasonic wave oil sludge separation system (1), the ultrasonic transducer (1-4) be fixed on described ultrasonic wave oil sludge separating tank (1-1) carries out ultrasonic vibration to the oil sludge in described ultrasonic wave oil sludge separating tank (1-1), oil sludge isolates crude oil through described profit and liquid-solid separation system (2) after described ultrasonic transducer (1-4) vibration.

2. equip as claimed in claim 1, it is characterized in that: described ultrasonic wave oil sludge separation system (1) also comprises oil sludge lifting system (1-5), described oil sludge lifting system (1-5) is for being transported to oil sludge ultrasonic wave oil sludge separating tank (1-1) from stirring feed tank (2-7).

3. equip as claimed in claim 1, it is characterized in that: described ultrasonic wave oil sludge separating tank (1-1) bottom is taper silt trap.

4. equip as claimed in claim 1, wherein, described ultrasonic wave oil sludge separation system (1) also comprises oil sludge stirring system (1-6), and described oil sludge stirring system (1-6) is for stirring the oil sludge in described ultrasonic wave oil sludge separating tank (1-1).

5. equip as claimed in claim 1, wherein, described ultrasonic transducer (1-4) is connected with Ultrasonic Power Source (1-2) by multicore transmission compound cable, described Ultrasonic Power Source (1-2) is connected with main control system and supervisory system (1-3) by cable, and described main control system and supervisory system (1-2) are connected with indicating meter by cable.

6. equip as claimed in claim 1, wherein, described ultrasonic wave oil sludge separating tank (1-1) adopts the mode of Flange joint to be placed in vehicle-carried mobile system (1-7); Described ultrasonic transducer (1-4), described oil sludge lifting system (1-5) and described oil sludge stirring system (1-6) are fixed on the reserved flange of described ultrasonic wave oil sludge separating tank (1-1).

7. equip as claimed in claim 1, wherein, described ultrasonic transducer (1-4) is at least 4.

8. equip as claimed in claim 1, wherein, described profit and liquid-solid separation system (2) comprise oily water separation controller (2-1), floating oil skimmer vessel (2-2) and storage tank and water tank (2-3), described floating oil skimmer vessel (2-2) is positioned in described ultrasonic wave oil sludge separating tank (1-1), be connected with oily water separation controller (2-1) by plastic hose, oily water separation controller (2-1) is stored being flowed into respectively in described storage tank and water tank (2-3) by pipeline after the mixture process of crude oil and water.

9. equip as claimed in claim 1, wherein, described profit and liquid-solid separation system (2) also comprise return-flow system (2-4), and storage tank and the water tank in water tank (2-3) to be connected with ultrasonic wave oil sludge separating tank (1-1) by return-flow system (2-4) and to recycle recycle-water.

10. equip as claimed in claim 1, wherein, described profit and liquid-solid separation system (2) also comprise solid-liquid separation controller (2-5), sludge pump (2-6), stir feed tank (2-7) and solid-liquid separator (2-8), described sludge pump (2-6) is placed in ultrasonic wave oil sludge separating tank (1-1) bottom pyramidal silt trap, the slurry transportation that ultrasonic transducer (1-4) processed by described sludge pump (2-6) is in solid-liquid separator (2-8), solid silt after process is directly got rid of by the control through solid-liquid separation controller (2-5), by the liquid return after process in water tank, liquid in described water tank to be connected with ultrasonic wave oil sludge separating tank (1-1) by return-flow system (2-4) and to recycle recycle-water.