Ultrasonic sump oil demulsification unit assembly and sump oil treatment device

Abstract

The utility model relates to an ultrasonic sump oil demulsification unit assembly and a sump oil treatment device, and the ultrasonic sump oil demulsification unit assembly comprises a treatment tank, an ultrasonic transducer, a variable amplitude tool head, an outlet pipe, an inlet pipe, a blow-off pipe and a heating coil. An ultrasonic transducer is arranged at the top of the treatment tank, the lower end of the ultrasonic transducer is connected with a variable-amplitude tool head, the variable-amplitude tool head is located in the treatment tank, an outlet pipe is arranged on the side wall of the upper portion of a treatment tank body, an inlet pipe is arranged at the lowest position of the bottom of the treatment tank, sump oil is fed from the bottom and discharged from the top, and a support is fixedly arranged on the lower portion of the outer side of the treatment tank body. The dirty oil treatment device is formed by connecting the unit assemblies in a multi-stage series mode through the middle connecting pipes, continuous ultrasonic dirty oil demulsification treatment can be achieved, and the dirty oil treatment quality is guaranteed. Meanwhile, the device is convenient to mount, simple and suitable to maintain and capable of realizing standardization of the sump oil treatment device.

Description

Technical Field

[0001] The utility model relates to a waste oil demulsification device, in particular to an ultrasonic waste oil demulsification unit assembly and a waste oil treatment device composed of the same. Background Art

[0002] With the development of the industrialization process, the development of technologies in the fields of oil exploration, production, processing, etc. has advanced by leaps and bounds. In these application fields, a large amount of waste oil is involved and generated. Waste oil is a stable emulsion system of water-in-oil or oil-in-water in which petroleum hydrocarbons, resins, asphaltenes, mud, inorganic flocs, organic flocs, water and other organic and inorganic substances are firmly bonded together, and has the characteristics of being difficult to degrade, having a high separation difficulty, being toxic and harmful, etc. At present, in most refineries, sedimentation dehydration of waste oil collection storage tanks is generally adopted, or methods such as using flocculants, demulsifying dehydrating agents and heating are used to treat water-containing waste oil. The above methods have problems of poor treatment effect and high energy consumption, and even cause secondary pollution and increase the environmental protection investment cost.

[0003] Research at home and abroad shows that ultrasonic demulsification is a demulsification method with great development prospects. When ultrasonic waves act on fluid media with different properties, displacement effects and collisions will occur, thereby realizing oil-water separation. It can quickly realize the demulsification of waste oil and greatly improve the dehydration efficiency. Using ultrasonic waves for waste oil demulsification and dehydration mainly utilizes the mechanical vibration effect and thermal effect of ultrasonic waves. The mechanical vibration effect can promote the displacement effect of water "particles", and then the small water droplets are condensed into large water droplets by collision and settle and separate under the action of gravity; the thermal effect can reduce the strength of the oil-water interface film and the viscosity of waste oil, so as to separate oil, mud and water and achieve the effect of demulsification and dehydration.

[0004] With the continuous deepening of crude oil exploitation, at present, most oil fields are in the stage of high water cut and high production, the difficulty of crude oil exploitation increases, the oil sludge shows an increasingly heavy and inferior trend, the difficulty of oil-water separation increases, and there are various inadaptabilities in the demulsification mode using conventional ultrasonic demulsification means. For example, when the parameters of the oil sludge change, the original device cannot meet the requirements of oil sludge treatment, resulting in low quality and non-compliance of the treated oil sludge. Summary of the Invention

[0005] In order to overcome the technical problem that when the parameters of the oil sludge change in the prior art, the original device cannot meet the requirements of treatment quality, the utility model provides an ultrasonic waste oil demulsification unit assembly and a waste oil treatment device. The ultrasonic waste oil demulsification unit assembly and the waste oil treatment device have a simple structure, are convenient to manufacture and install, can realize the standardization of the treatment device, can adjust the number of demulsification unit assemblies at any time according to the change of the oil sludge parameters, and ensure the quality of the treated oil sludge.

[0006] The technical solution adopted by the utility model to achieve the above purpose is:

[0007] An ultrasonic waste oil demulsification unit assembly, comprising a treatment tank, an ultrasonic transducer, a horn, an outlet pipe, an inlet pipe and a sewage discharge pipe. The ultrasonic transducer is provided outside the top of the treatment tank. The lower end of the ultrasonic transducer is connected to the horn. The horn is located inside the treatment tank. An outlet pipe is provided on the upper side wall of the treatment tank body. The lowest part of the bottom of the treatment tank is provided with an inlet pipe. A bracket is fixedly provided on the lower part of the outer side of the treatment tank body.

[0008] A heating coil is provided inside the treatment tank. Both ends of the heating coil pass through the wall of the treatment tank body and are respectively connected to an external steam pipeline through a steam interface and to an external condensate pipeline through a condensate interface.

[0009] The position of the outlet pipe is higher than the bottom end of the horn.

[0010] The position of the outlet pipe is higher than the middle part of the horn.

[0011] A sewage discharge pipe is provided at the lowest part of the inlet pipe. A sewage discharge valve is provided on the sewage discharge pipe.

[0012] A sampling port is provided on the treatment tank body.

[0013] There are three sampling ports, which are respectively arranged at the upper, middle and lower parts of the treatment tank body.

[0014] A waste oil treatment device, comprising a plurality of ultrasonic waste oil demulsification unit assemblies and an intermediate connecting pipe. Each ultrasonic waste oil demulsification unit assembly comprises a treatment tank, an ultrasonic transducer, a horn, an outlet pipe, an inlet pipe and a sewage discharge pipe. The ultrasonic transducer is provided outside the top of the treatment tank. The lower end of the ultrasonic transducer is connected to the horn. The horn is located inside the treatment tank. An outlet pipe is provided on the upper side wall of the treatment tank body. The lowest part of the bottom of the treatment tank is provided with an inlet pipe. A bracket is fixedly provided on the lower part of the outer side of the treatment tank body; there are at least 2 groups of the ultrasonic waste oil demulsification unit assemblies. The intermediate connecting pipe connects the outlet pipe of one ultrasonic waste oil demulsification unit assembly to the inlet pipe of another ultrasonic waste oil demulsification unit assembly through a flange, and in this way, all the ultrasonic waste oil demulsification unit assemblies are connected in series in sequence.

[0015] The beneficial effects of the present utility model are as follows:

[0016] (1) The waste oil treatment device of the present utility model is composed of multiple unit structures connected in series, and can realize continuous ultrasonic waste oil demulsification treatment.

[0017] (2) The waste oil treatment device of the present utility model can arbitrarily adjust the number of series-connected unit assemblies according to the parameter changes of the waste oil and sludge, so as to ensure the quality of waste oil and sludge treatment.

[0018] (3) The waste oil treatment device of the present utility model is formed by connecting various unit components in series through an intermediate connecting pipe, which is convenient to install. The unit structure is simple, and the maintenance is equally simple and feasible, enabling the standardization of the waste oil treatment device.

[0019] (4) Sampling interfaces are provided at the upper, middle, and lower parts of the treatment tank of the present utility model, which can accurately obtain the demulsification result of the treated waste oil, and accordingly adjust the switch or power of the transducer quantity control.

[0020] (5) The present utility model uses a heating coil to heat the waste oil sludge, reducing the viscosity of the waste oil sludge, and then uses the mechanical vibration and thermal effect of ultrasonic waves for demulsification. The combined use of multiple methods improves the treatment efficiency of oily sludge. Description of the Drawings

[0021] Figure 1 is the front view schematic diagram of the ultrasonic waste oil demulsification unit component of the present utility model;

[0022] Figure 2 is the front view schematic diagram of the waste oil treatment device of the present utility model;

[0023] Figure 3 is Figure 2 the A-A cross-sectional schematic diagram of;

[0024] Figure 4 is the three-dimensional schematic diagram of the waste oil treatment device of the present utility model.

[0025] In the figure, 1: ultrasonic transducer; 2: connecting flange; 3: treatment tank; 4: intermediate connecting pipe; 5: amplitude transformer tool head; 6: inlet pipe; 7: sewage pipe; 8: sewage valve; 9: outlet pipe; 10: bracket; 11: high-level sampling interface; 12: steam interface; 13: middle-level sampling interface; 14: condensate interface; 15: low-level sampling interface; 16: heating coil. Detailed Embodiments

[0026] The following further describes in detail the embodiments of the present utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0027] The embodiments of the present utility model are given for purposes of illustration and description, and are not exhaustive or limit the present utility model to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present utility model, and enable those of ordinary skill in the art to understand the present utility model and thus design various embodiments with various modifications suitable for specific purposes.

[0028] As Figure 1and Figure 3 As shown in the figure, an ultrasonic waste oil demulsification unit assembly includes a treatment tank 3, an ultrasonic transducer 1, a horn tool head 5, an outlet pipe 9, an inlet pipe 6, and a sewage discharge pipe 7. An ultrasonic transducer 1 is provided outside the top of the treatment tank 3, and the ultrasonic transducer 1 is fixed to the top of the treatment tank 3 through a connecting flange 2. The lower end of the ultrasonic transducer 1 is connected to the horn tool head 5, and the horn tool head 5 is located inside the treatment tank 3. An outlet pipe 9 is provided on the upper side wall of the treatment tank 3, and an inlet pipe 6 is provided at the lowest position of the bottom of the treatment tank 3. The waste oil treatment adopts the method of low inlet and high outlet. A support 10 is fixedly provided on the lower part of the outer side of the treatment tank 3 for supporting the tank body. A heating coil 16 is further provided inside the treatment tank 3. Both ends of the heating coil 16 pass through the wall surface of the treatment tank 3 and are respectively connected to an external steam pipeline through a steam interface 12 and to an external condensate pipeline through a condensate interface 14. The heating coil 16 heats the waste oil sludge, reduces the viscosity of the waste oil sludge, and the mechanical vibration and thermal effect of ultrasonic waves demulsify the waste oil sludge. The combined use of multiple methods can improve the treatment efficiency of oily sludge.

[0029] The position of the outlet pipe 9 is higher than the bottom end of the horn tool head 5, and the best position is higher than the middle part of the horn tool head 5, so as to avoid secondary emulsification of the outlet waste oil due to mechanical action. A sewage discharge pipe 7 is provided at the lowest position of the inlet pipe 6, and a sewage discharge valve 8 is provided on the sewage discharge pipe 7 for sewage discharge.

[0030] Sampling interfaces are also provided on the treatment tank 3. There are three sampling interfaces, namely a high-level sampling interface 11 at the upper part of the treatment tank 3, a middle-level sampling interface 13 in the middle, and a low-level sampling interface 15 at the lower part. Sampling through the sampling interfaces can accurately obtain the demulsification result of the treated waste oil, and accordingly, the switch or power of the control transducer quantity can be precisely adjusted.

[0031] As Figure 2 and Figure 4 shown in the figure, an waste oil treatment device includes an ultrasonic waste oil demulsification unit assembly and an intermediate connecting pipe 4. There are 5 groups of ultrasonic waste oil demulsification unit assemblies in total. The intermediate connecting pipe 4 connects the outlet pipe 9 of one ultrasonic waste oil demulsification unit assembly to the inlet pipe 6 of another ultrasonic waste oil demulsification unit assembly through a flange. In this way, the 5 groups of ultrasonic waste oil demulsification unit assemblies are connected in series in turn, and continuous ultrasonic waste oil demulsification treatment can be realized. The demulsification result of the waste oil is obtained by sampling through the sampling interface, and the number of the series-connected unit assemblies can also be adjusted, thereby ensuring the quality of the waste oil sludge treatment. Since the waste oil treatment device is formed by connecting each unit assembly in series through the intermediate connecting pipe 4, the unit structure is simple, the installation is convenient, and the maintenance is also simple and feasible, and the standardization of the waste oil treatment device can be realized.

Claims

1. An ultrasonic waste oil demulsification unit assembly, comprising a treatment tank, an ultrasonic transducer, a horn, an outlet pipe, an inlet pipe and a sewage discharge pipe, characterized in that: An ultrasonic transducer is provided outside the top end of the treatment tank. The lower end of the ultrasonic transducer is connected to a horn tool head. The horn tool head is located inside the treatment tank. An outlet pipe is provided on the upper side wall of the treatment tank body. The lowest point at the bottom of the treatment tank is provided with an inlet pipe. A bracket is fixedly provided at the lower part outside the treatment tank body.

2. The ultrasonic oily sewage demulsification unit assembly according to claim 1, wherein: A heating coil is provided inside the treatment tank. Both ends of the heating coil pass through the wall surface of the treatment tank body and are respectively connected to an external steam pipeline through a steam interface and to an external condensate pipeline through a condensate interface.

3. The ultrasonic waste oil demulsification unit assembly according to claim 1 or 2, characterized in that: The position of the outlet pipe is higher than the bottom end of the horn tool head.

4. The ultrasonic oily sewage demulsification unit component according to claim 3, characterized in that: The position of the outlet pipe is higher than the middle part of the horn tool head.

5. The ultrasonic emulsion-breaking unit assembly according to claim 4, wherein: A drain pipe is provided at the lowest point of the inlet pipe, and a drain valve is provided on the drain pipe.

6. The ultrasonic oily sewage demulsification unit assembly according to claim 5, characterized in that: A sampling interface is provided on the treatment tank body.

7. The ultrasonic oily sewage demulsification unit component according to claim 6, characterized in that: There are three sampling interfaces, which are respectively arranged at the upper, middle and lower parts of the treatment tank body.

8. An oil sludge treatment device, characterized in that, It includes the ultrasonic waste oil demulsification unit assembly according to any one of claims 1 to 7 and an intermediate connecting pipe. There are at least 2 groups of the ultrasonic waste oil demulsification unit assemblies. The intermediate connecting pipe connects the outlet pipe of one ultrasonic waste oil demulsification unit assembly to the inlet pipe of another ultrasonic waste oil demulsification unit assembly through a flange, and in this way, all the ultrasonic waste oil demulsification unit assemblies are connected in series in sequence.

Images