Modularized micro-nano bubble content detection device

Abstract

The invention provides a modularized micro-nano bubble content detection device which mainly comprises a main body, an upper end cover, an infrared transmitter, an infrared receiver, toughened glass, a transmitting end fastener, a receiving end fastener, a sealing gasket, an end face sealing sheet and a lower end cover, and is characterized in that the upper end and the lower end of the main body are connected with the upper end cover and the lower end cover through screws; the left end and the right end of the main body are connected with a field pipeline through the flange plates and the pipeline transition pieces, the emitter is placed at a linear through hole of the emitter holder, the emitter holder is placed in the middle of the emitting end fastener, the emitting end fastener is connected with the main body through screws, and the glass carrier is placed in the main body. The tempered glass and the sealing gaskets at the two ends are installed in the middle of the upper glass carrier in the same way as the receiving end. According to the device, real-time detection of the content of micro-nano bubbles can be achieved, meanwhile, multiple pairs of infrared emitters and infrared receivers are arranged, the detection accuracy of the content of the micro-nano bubbles can be improved, the detection error is effectively reduced, and the device is designed in a structural modularization mode and is easy to install.

Description

Technical Field

[0001] The invention relates to micro-nano bubble content detection in the field of water-gas dispersion system oil displacement, and in particular to a modular micro-nano bubble content detection device. Background Art

[0002] Water-gas dispersion system flooding technology has been widely used in oilfield exploitation. The core of the technology is to mix micro-foam and water and then inject it into the formation, thereby increasing the swept volume and utilizing the elasticity of micro-bubbles to improve the oil recovery efficiency. In recent years, a new type of efficient and green oil recovery system has been developed. Nitrogen and ionized water are mixed through a micro-nano bubble generator to produce a solution containing micro-nano bubbles, which is then injected into the formation for oil recovery. Among them, the content of micro-nano bubbles is crucial to controlling the gas-liquid ratio parameter adjustment of the generator, which further affects the oil recovery efficiency of different formations. In addition, micro-nano bubbles have also been widely used in sewage treatment and efficient cleaning. At present, the detection principles for the content of micro-nano bubbles include infrared light intensity sensing, ultrasound, machine vision, etc., among which infrared sensing is the most widely used. However, due to structural design defects, the existing device has problems such as large installation space, difficult disassembly of detection components, and poor detection accuracy. Specifically, the transmitting device and the receiving device need to be connected to explosion-proof pipelines separately, and interference is easily generated during on-site installation; the sampling point is single and cannot reflect the content at different positions of the flow channel section; the glass slide is small in size and difficult to remove due to deformation and aging of the sealing piece.

[0003] To this end, the present invention proposes a modular micro-nano bubble content detection device, which can quickly obtain the infrared sensing electrical parameters of micro-nano bubbles in the pipeline at different points in the same cross section, and realize the real-time detection of micro-nano bubble content by combining the constructed electrical parameters and the mathematical model of micro-nano bubble concentration. Through the design of multi-point detection, square flow channel, modularization of detection element carrier, single-side routing, etc., the detection accuracy can be improved, the maintenance and disassembly can be facilitated, and the installation space can be reduced. Summary of the invention

[0004] The purpose of the present invention is to solve the above-mentioned shortcomings of the existing process and to propose a modular micro-nano bubble content detection device to achieve real-time detection of the micro-nano bubble content.

[0005] The purpose of the present invention is achieved through the following technical solutions:

[0006] A modular micro-nano bubble content detection device includes a main body, a transmitting end component, and a receiving end component, and is characterized in that:

[0007] The transmitting end assembly is composed of an infrared transmitter, a transmitter holder, a transmitting end fastener, a tempered glass, and an upper glass carrier which are connected in a sliding manner in sequence; the transmitting end assembly is fixedly connected to the upper end surface of the main body through the transmitting end fastener;

[0008] The receiving end assembly is composed of an infrared receiver, a receiver holder, a receiving end fastener, a tempered glass, and a lower glass carrier which are slidably connected in sequence; the receiving end assembly is fixedly connected to the lower end surface of the main body through the receiving end fastener;

[0009] A sinking step and a connecting through hole are provided in the middle of the upper and lower sides of the main body, flanges are provided on the left and right sides of the main body, and a square flow channel is provided in the middle, a groove is provided at the end face of the flange, and the tempered glass, the connecting through hole and the square flow channel together constitute the infrared radiation channel of the transmitting end and the receiving end; U-shaped grooves are symmetrically provided on the upper and lower end faces of the main body, and a main body through hole is provided at the bottom of the two symmetrical U-shaped grooves, and the circuit of the infrared receiver can be merged with the circuit of the infrared transmitter through the main body through hole.

[0010] The modular micro-nano bubble content detection device is characterized in that: the upper and lower sides of the main body are fixedly connected to the upper end cover and the lower end cover respectively;

[0011] End face sealing sheets are arranged between the main body and the upper end cover and the lower end cover to form an outer layer seal, sealing gaskets are arranged on both sides of the tempered glass, and pipeline sealing sheets are arranged between the main body and the upper glass carrier and the lower glass carrier to form an inner layer seal together.

[0012] The modular micro-nano bubble content detection device is characterized in that: the infrared transmitter and the infrared receiver are respectively inserted into the straight through holes of the transmitter holder and the receiver holder, and are interference fit with each other. The infrared transmitter and the infrared receiver are symmetrically distributed at the upper and lower ends of the main body, forming a one-to-one correspondence.

[0013] Both sides of the transmitter holder and the receiver holder are provided with protrusions, and the protrusions are closely attached to the surfaces of the transmitter end fastener and the receiver end fastener to limit the transmitter holder and the receiver holder.

[0014] The modular micro-nano bubble content detection device is characterized in that both sides of the end faces of the transmitting end fastener and the receiving end fastener are provided with notches, and the notches are consistent in shape with the U-shaped groove.

[0015] The modular micro-nano bubble content detection device is characterized in that a rectangular through hole and a carrier step are opened in the middle of the upper glass carrier and the lower glass carrier, the carrier step and the connecting through hole cooperate, and the main body limits the upper glass carrier and the lower glass carrier through the sink step.

[0016] The modular micro-nano bubble content detection device is characterized in that the upper end cover is connected to the explosion-proof pipeline through a threaded hole opened on the top, and the internal circuit is led out through the explosion-proof pipeline.

[0017] The modular micro-nano bubble content detection device is characterized in that: the left and right ends of the main body are connected to the on-site pipeline through flanges, a pipeline transition piece is placed between the main body and the on-site pipeline, the small end of the pipeline transition piece is inserted into the on-site pipeline, and the large end is embedded in the flange groove. The interior of the pipeline transition piece is a circular to square transition surface, the exterior is cylindrical, and an end face step is provided at the large end. The height and diameter of the end face step are consistent with the depth and diameter of the flange groove, and the end face step cooperates with the flanges on both sides to axially limit the pipeline transition piece.

[0018] Beneficial effects of the present invention:

[0019] 1. The side-by-side arrangement of sensors and the square flow channel design are conducive to improving detection accuracy. Multiple pairs of infrared sensors are used to perform multi-point sampling on the same cross section of the pipeline. By comparing the detection values ​​with each other, abnormal values ​​can be eliminated and inaccurate single-point detection caused by flow pattern differences can be avoided. The square flow channel is different from the traditional circular one. The upper and lower spacings of the flow channel section are consistent, which can avoid detection errors caused by transmission distance differences. In addition, a pipeline transition piece is designed to ensure a smooth transition of the fluid between the circular flow channel and the square flow channel. The existing detection method takes the circular flow channel as the object and adopts a single-point detection form. It is impossible to detect the uneven distribution of micro-nano bubbles at different positions of the same cross section due to the difference in flow patterns between the center and the near wall. Even if a parallel arrangement is used in the same cross section of the circular flow channel, the difference in upper and lower distances will cause large errors in the results. For this reason, the above structural designs of the present invention complement each other, and the lack of one will lead to poor detection accuracy.

[0020] 2. The modular design of the transmitter and receiver and the single-sided wiring design facilitate the removal of core components and reduce the overall space occupied. Glass carriers are set at the upper and lower ends of the main body, which can realize the rapid replacement of tempered glass and detection elements and avoid the overall disassembly of the device; the main through hole opened on the main body allows the receiving end line to be connected to the transmitter and led out from the explosion-proof pipeline. The existing detection device needs to be disassembled with the help of additional special tools due to the small size of the glass slide, and the two-sided wiring form leads to a large overall space occupation due to the poor flexibility of the explosion-proof pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of a modular micro-nano bubble content detection device;

[0022] Figure 2 It is an assembly cross-sectional view of a modular micro-nano bubble content detection device;

[0023] Figure 3 It is a structural schematic diagram of the main body of a modular micro-nano bubble content detection device;

[0024] Figure 4 It is a schematic diagram of the coordination of the emitter part of a modular micro-nano bubble content detection device;

[0025] Figure 5 A schematic diagram of a glass carrier for a modular micro-nano bubble content detection device;

[0026] Figure 6 It is a structural schematic diagram of an upper end cover of a modular micro-nano bubble content detection device;

[0027] Figure 7 It is a structural schematic diagram of a pipeline transition piece of a modular micro-nano bubble content detection device;

[0028] Figure 8 It is a cross-sectional view of a pipeline transition piece of a modular micro-nano bubble content detection device;

[0029] In the figure: 1-upper end cover; 2-threaded hole; 3-flange; 4-groove; 5-main body; 6-lower end cover; 7-receiving end fastener; 8-infrared receiver; 9-receiver holder; 10-tempered glass; 11-lower glass carrier; 12-pipe sealing plate; 13-main body through hole; 14-sealing gasket; 15-infrared transmitter; 16-transmitter holder; 17-transmitter end fastener; 18-end face sealing plate; 19-U-shaped groove; 20-sinking groove step; 21-I-shaped through hole; 22-connecting through hole; 23-square flow channel; 24-pipe transition piece; 25-upper glass carrier; 26-bump; 27-carrier step; 28-end face step; 29-rectangular through hole. DETAILED DESCRIPTION

[0030] The present invention is further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0031] like Figure 1-2As shown, a modular micro-nano bubble content detection device mainly includes a main body 5, an upper end cover 1, a lower end cover 6, an infrared transmitter 15, an infrared receiver 8, a tempered glass 10, a transmitting end fastener 17, a receiving end fastener 7, a transmitter holder 16, a receiver holder 9, and a pipeline transition piece 24, characterized in that: the upper and lower sides of the main body 5 are respectively connected to the upper end cover 1 and the lower end cover 6 by screws, the transmitter holder 16 and the receiver holder 9 are respectively embedded in the transmitting end fastener 17 and the receiving end fastener 7, the transmitting end fastener 17 and the receiving end fastener 7 are respectively placed in the upper glass carrier 25 and the lower glass carrier 11, and the tempered glass 10 is arranged between them, the transmitting end fastener 17 and the receiving end fastener 7 are respectively connected to the upper end face and the lower end face of the main body 5 by screws, the left and right sides of the main body 5 are provided with flanges 3, and a square flow channel 23 is opened in the middle, the flange 3 A groove 4 is provided at the end face, and the left and right ends of the main body 5 are connected to the on-site pipeline through the flange 3. A pipeline transition piece 24 is placed between the main body 5 and the on-site pipeline. The small end of the pipeline transition piece 24 is inserted into the inside of the on-site pipeline, and the large end is embedded in the flange groove 4. The infrared transmitter 15 and the infrared receiver 8 are symmetrically distributed at the upper and lower ends of the main body 5 to form a one-to-one correspondence. The number of logarithms of the infrared transmitter 15 and the infrared receiver 8 can be increased or decreased according to the actual size of the connecting pipeline. The infrared transmitter 15 can be combined with different wavelengths and different powers. A two-layer sealing structure is designed on both sides of the main body. An end face sealing sheet 18 is provided between the main body 5 and the upper end cover 1 and the lower end cover 6 to form an outer layer seal. Sealing gaskets 14 are provided on both sides of the tempered glass 10. A pipeline sealing sheet 12 is provided between the main body 5 and the upper glass carrier 25 and the lower glass carrier 11 to form an inner layer seal.

[0032] like Figure 3 As shown, a pair of U-shaped grooves 19 are provided at both ends of the main body 5 to ensure that the upper glass carrier 25 and the lower glass carrier 11 can be smoothly removed when the pipeline sealing sheet 12 is aged. A main body through hole 13 is provided at the bottom of the two symmetrical U-shaped grooves 19 on one side of the main body 5 to enable the circuit of the infrared receiver 8 to merge with the circuit of the infrared transmitter 15 through the main body through hole 13. A sinking step 20 is provided in the middle of the upper and lower ends of the main body 5 to limit the upper glass carrier 25 and the lower glass carrier 11.

[0033] like Figure 4 As shown, the infrared transmitter 15 and the infrared receiver 8 are respectively inserted into the straight through holes 21 of the transmitter holder 16 and the receiver holder 9, and are interference fit with each other. Both sides of the transmitter holder 16 and the receiver holder 9 are provided with protrusions 26, and the protrusions 26 are closely attached to the surfaces of the transmitter end fastener 17 and the receiver end fastener 7 to limit the transmitter holder 16 and the receiver holder 9. Both sides of the end faces of the transmitter end fastener 17 and the receiver end fastener 7 are provided with notches, and the shape of the notches is consistent with the U-shaped groove 19.

[0034] like Figure 5 As shown, the upper glass carrier 25 and the lower glass carrier 11 cooperate with each other through the carrier step 27 set at the bottom and the connecting through hole 22 in the middle of the main body 5. A rectangular through hole 29 is opened in the middle of the upper glass carrier 25 and the lower glass carrier 11. The rectangular through hole 29, the tempered glass 10, and the square flow channel 23 together form an infrared channel.

[0035] like Figure 6 As shown, the upper end cover 1 is connected to the explosion-proof pipeline through a threaded hole 2 opened on the top, and spaces are provided inside the upper end cover 1 and the lower end cover 6 to accommodate control components and circuits.

[0036] like Figure 7-8 As shown, the interior of the pipeline transition piece 24 is a transition surface from circular to square, and the exterior is cylindrical. An end face step 28 is provided at the large end. The height and diameter of the end face step 28 are consistent with the depth and diameter of the flange groove 4. The end face step 28 cooperates with the flanges on both sides to axially limit the pipeline transition piece 24. Specific embodiment 1:

[0038] like Figure 1-5 As shown, each component is installed on the main body from the inside to the outside. First, the tempered glass 10 is placed in the lower glass carrier 11, and then the infrared receiver 8 is inserted into the receiver holder 9, and after being matched with the receiving end fastener 7, it is placed in the lower glass carrier 11 together. The receiving end fastener 7 is connected to the main body 5 by screws. The transmitting end components are installed in the same way. During the installation process, the sealing parts at various places are set at the same time. The receiving end line is merged with the transmitting end through the main body through hole 13, and finally led out from the explosion-proof pipeline of the transmitting end. Then, after powering on to check whether the infrared transmitter 15 and the infrared receiver 8 correspond to each other one by one, the upper end cover 1 and the lower end cover 6 are connected. Finally, the pipeline transition piece 24 is set between the detection device and the on-site pipeline, and then the flange connection is performed. Liquid is passed into the pipeline to check the overall sealing performance. Since the infrared transmitter 15 and the infrared receiver 8 are both purchased components, due to size restrictions, the logarithm of the infrared sensor can be increased or decreased according to the size of the detected pipe diameter. In addition, since the penetration performance of infrared sensors varies greatly under different concentrations of micro-nano bubbles, the power of the infrared sensor can be adjusted according to the working conditions of the micro-nano bubble generating device to meet the detection requirements. The horizontal and vertical installation of the detection device has no effect on the detection and can be installed according to the actual space conditions. Specific embodiment 2:

[0040] like Figure 1-5As shown, after the detection device has been used for a period of time, some of the worn parts need to be replaced, repaired, and cleaned. Only the transmitting end or the receiving end needs to be disassembled, and the entire device flange does not need to be disassembled. Here, taking the transmitting end as an example, after removing the upper end cover 1, the internal sealing condition can be checked; the infrared transmitter 15 can be repaired; the sealing parts can be replaced; the tempered glass 10 and the upper glass carrier 25 are clearance-matched, and can be easily removed and cleaned by a suction cup tool. The receiving end can be operated in the same way.

Claims

1. A modular micro-nano bubble content detection device, comprising a main body (5), a transmitting end component, and a receiving end component, characterized in that: The transmitting end assembly is composed of an infrared transmitter (15), a transmitter holder (16), a transmitting end fastener (17), a tempered glass (10), and an upper glass carrier (25) which are slidably connected in sequence; the transmitting end assembly is fixedly connected to the upper end surface of the main body (5) via the transmitting end fastener (17); The receiving end assembly is composed of an infrared receiver (8), a receiver holder (9), a receiving end fastener (7), a tempered glass (10), and a lower glass carrier (11) which are slidably connected in sequence; the receiving end assembly is fixedly connected to the lower end surface of the main body (5) via the receiving end fastener (7); A sink step (20) and a connecting through hole (22) are provided in the middle of the upper and lower sides of the main body (5); flanges (3) are provided on the left and right sides of the main body (5); and a square flow channel (23) is provided in the middle; a groove (4) is provided at the end surface of the flange (3); the tempered glass (10), the connecting through hole (22) and the square flow channel (23) together form an infrared ray counter-radiation channel of the transmitting end and the receiving end; U-shaped grooves (19) are symmetrically provided at the upper and lower ends of the main body (5); a main body through hole (13) is provided at the bottom of the two symmetrical U-shaped grooves (19); and the circuit of the infrared receiver (8) can be connected to the circuit of the infrared transmitter (15) through the main body through hole (13).

2. A modular micro-nano bubble content detection device according to claim 1, characterized in that: The upper and lower sides of the main body (5) are fixedly connected to the upper end cover (1) and the lower end cover (6) respectively; An end face sealing sheet (18) is arranged between the main body (5) and the upper end cover (1) and the lower end cover (6) to form an outer layer seal, a sealing gasket (14) is arranged on both sides of the tempered glass (10), and a pipeline sealing sheet (12) is arranged between the main body (5) and the upper glass carrier (25) and the lower glass carrier (11) to form an inner layer seal together.

3. A modular micro-nano bubble content detection device according to claim 1, characterized in that: The infrared transmitter (15) and the infrared receiver (8) are respectively inserted into the straight through holes (21) of the transmitter holder (16) and the receiver holder (9), and are interference fit with each other. The infrared transmitter (15) and the infrared receiver (8) are symmetrically distributed at the upper and lower ends of the main body (5), forming a one-to-one correspondence. Both sides of the transmitter holder (16) and the receiver holder (9) are provided with protrusions (26), and the protrusions (26) are closely attached to the surfaces of the transmitter end fastener (17) and the receiver end fastener (7) to limit the position of the transmitter holder (16) and the receiver holder (9).

4. A modular micro-nano bubble content detection device according to claim 1, characterized in that: Both sides of the end faces of the transmitting end fastener (17) and the receiving end fastener (7) are provided with notches, and the notches and the U-shaped groove (19) are consistent in shape.

5. A modular micro-nano bubble content detection device according to claim 1, characterized in that: A rectangular through hole (29) and a carrier step (27) are provided in the middle of the upper glass carrier (25) and the lower glass carrier (11); the carrier step (27) cooperates with the connecting through hole (22); and the main body (5) limits the upper glass carrier (25) and the lower glass carrier (11) through the sink step (20).

6. A modular micro-nano bubble content detection device according to claim 2, characterized in that: The upper end cover (1) is connected to the explosion-proof pipeline via a threaded hole (2) opened at the top, and the internal circuit is led out via the explosion-proof pipeline.

7. A modular micro-nano bubble content detection device according to claim 1, characterized in that: The left and right ends of the main body (5) are connected to the on-site pipeline through the flange (3). A pipeline transition piece (24) is placed between the main body (5) and the on-site pipeline. The small end of the pipeline transition piece (24) is inserted into the on-site pipeline, and the large end is embedded in the flange groove (4). The interior of the pipeline transition piece (24) is a transition surface from circular to square, and the exterior is cylindrical. The large end is provided with an end face step (28). The height and diameter of the end face step (28) are consistent with the depth and diameter of the flange groove (4). The end face step (28) cooperates with the flanges on both sides to axially limit the pipeline transition piece (24).

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