A polyacrylamide concentration detection device

Abstract

The application relates to a polyacrylamide concentration detection device, which comprises a standing box, a filter box connected to the standing box, a box body and a cover body, a magnetic lock arranged on the box body and used for attracting the cover body to the box body, a plurality of groups of filter layers arranged on the surface of the cover body and the box body, a plurality of groups of insertion slots arranged in the box body and the same as the number of the filter layers, a transition fit relationship between the filter layers and the insertion slots, a lifting assembly and a cleaning assembly arranged on the box body, the lifting assembly is used for lifting the cover body along the box body, when the lifting assembly drives the cover body to lift along the box body, the filter layers synchronously slide along the insertion slots following the cover body, and the cleaning assembly is used for cleaning the lifted filter layers. The application has the effect of reducing the content of foreign matters in sewage when the polyacrylamide concentration in the sewage is detected.

Description

Technical Field

[0001] This application relates to the field of polyacrylamide concentration detection equipment, and more particularly to a polyacrylamide concentration detection device. Background Technology

[0002] Polyacrylamide is a water-soluble polymer compound with wide applications in oil extraction, wastewater treatment, and papermaking. With the improvement and industrialization of polymer flooding technology in oil fields, polyacrylamide has been widely used in tertiary oil recovery. As a chemical thickener, polyacrylamide can significantly increase the viscosity of aqueous solutions, improve sweep efficiency, and increase oil recovery.

[0003] Accurate determination of polyacrylamide concentration is crucial for studying the chemical adsorption and retention of polymers in the substrate. Chinese Utility Model Patent Publication (Announcement No.): CN214895210U discloses a device for detecting polyacrylamide concentration in oilfield wastewater, comprising a housing and a detector. The housing contains a filtration unit and a metering unit. The filtration unit includes an inlet pipe, a settling tank, a first pipe, a filter box, and a second pipe. The settling tank and filter box are fixed inside the housing. One end of the inlet pipe is connected to the settling tank, and both ends of the first pipe are connected to the settling tank and the filter box, respectively. A filter is installed inside the filter box. The metering unit includes a metering cylinder, an air pipe, and an outlet pipe. Both ends of the second pipe are connected to the filter box and the metering cylinder, respectively. The upper end of the outlet pipe is connected to the lower end of the metering cylinder, and the lower end of the outlet pipe is connected to the detector. The lower end of the air pipe is fixed to the metering cylinder. A first solenoid valve and a second solenoid valve are respectively installed on the second pipe and the outlet pipe. This device reduces the impurity content in the wastewater and improves the accuracy of polyacrylamide concentration detection by controlling the operating state of the detection device through a controller.

[0004] The device includes a filter box that filters wastewater in stages to remove large particles and reduce the impact of impurities on the accuracy of polyacrylamide concentration detection. However, in practical applications, the amount and size of foreign objects in the wastewater vary under different operating conditions. As the filter box operates for longer periods, the first and second filter screens, as well as the filter element, may become clogged or experience reduced filtration capacity. Therefore, it is necessary to constantly monitor the filter box's filtration capacity and replace it if necessary, indicating room for improvement. Utility Model Content

[0005] In order to reduce the content of foreign matter in wastewater when detecting the concentration of polyacrylamide in wastewater, this application provides a polyacrylamide concentration detection device.

[0006] The polyacrylamide concentration detection device provided in this application adopts the following technical solution: A polyacrylamide concentration detection device includes a settling chamber connected to a filter chamber. The filter chamber includes a body and a cover. A magnetic lock is provided on the body to hold the cover in place. Several sets of filter layers are provided on the surface of the cover that meets the body. Several sets of slots, the same number as the filter layers, are provided inside the chamber. The tolerance fit between the filter layers and the slots is a transition fit. A lifting component and a cleaning component are provided on the body. The lifting component is used to lift the cover along the body. When the lifting component drives the cover to rise along the body, the filter layers slide synchronously along the slots. The cleaning component is used to clean the lifted filter layers.

[0007] By adopting the above technical solution, the wastewater undergoes preliminary sedimentation in the settling tank, effectively separating larger foreign objects from the wastewater. The wastewater then enters the filter tank, where it is filtered through several sets of filter layers, effectively reducing the amount of foreign objects. When cleaning the filter layers is required, the magnetic lock can be de-energized, allowing the cover to open along the tank. Because the filter layer is connected to the cover, when the lifting assembly lifts the cover along the tank, the filter layer moves synchronously with the cover, causing it to rise along the tank. The filter layer can then be cleaned using the cleaning assembly. This simple operation reduces the probability of excessive debris adhering to the filter layer affecting its efficiency, and plays a positive guiding role in reducing the content of foreign objects in wastewater when detecting polyacrylamide concentration.

[0008] Preferably, the cover is provided with a insertion groove, and the filter layer is inserted into the insertion groove.

[0009] By adopting the above technical solution, since the filter layer and the insertion slot are in a plug-in fit state, it is beneficial to improve the stability of the filter layer installed in the insertion slot. At the same time, it is also convenient to remove the filter layer along the cover or install the filter layer on the cover, making the operation simple.

[0010] Preferably, a flow guide groove is provided at the bottom of the housing, and when the filter layer is located inside the housing, the filter layer and the flow guide groove are in contact.

[0011] By adopting the above technical solution, the flow guiding effect of the guide channel helps to improve the convenience of cleaning the inside of the box when the filter layer is in a raised state along the box body, so that foreign objects will gather at the bottom of the box body along the guide channel during cleaning.

[0012] Preferably, a first solenoid valve is provided on the housing located at the flow guide groove, and the first solenoid valve is electrically connected to the controller.

[0013] By adopting the above technical solution, after the tank is cleaned, the controller can open the first solenoid valve to allow the sewage and / or foreign objects in the guide channel to be discharged along the guide channel. After the sewage and / or foreign objects in the guide channel are discharged along the guide channel, the controller can close the first solenoid valve. The operation is simple.

[0014] Preferably, the lifting assembly includes a drive cylinder and an auxiliary lifting plate. The piston rod of the drive cylinder faces the cover, and the auxiliary lifting plate is fixedly connected to the piston rod of the drive cylinder. When the piston rod of the drive cylinder moves, the auxiliary lifting plate abuts against the cover.

[0015] By adopting the above technical solution, when it is necessary to open the cover along the box, the cover can be separated from the box by the cooperation of the drive cylinder and the auxiliary lifting plate, so that the cover can drive the filter layer to be lifted along the box without the operator having to remove the cover along the box.

[0016] Preferably, the cleaning component includes an air gun connected to an external air pump, the air gun being used to clean the filter layer.

[0017] By adopting the above technical solution, foreign objects adhering to the filter layer are removed by an air gun, resulting in high cleaning efficiency.

[0018] Preferably, the housing is provided with a guide assembly, which includes a guide rail and a slider. The guide rail is arranged vertically on the side wall of the housing, and the slider is slidably disposed on the guide rail. The slider is connected to the auxiliary lifting plate.

[0019] By adopting the above technical solution, the cooperation of the guide rail and the slider helps to improve the stability of the drive cylinder and the auxiliary lifting plate when lifting the cover, and reduces the probability of the cover getting stuck when opening along the box due to the unstable cooperation between the cover and the auxiliary lifting plate.

[0020] Preferably, the primary filter baffle is inclined inside the settling box, and the primary filter baffle has a plurality of filter holes, the diameter of the filter holes gradually increasing from the end of the primary filter baffle toward the top of the settling box to the end toward the bottom of the settling box.

[0021] By adopting the above technical solution, when sewage flows into the settling tank, the primary filter baffle buffers the sewage flowing into the settling tank, thereby slowing down the flow rate of the sewage into the settling tank. At the same time, when the sewage flows into the settling tank, the overall flow rate is still relatively fast. The large particles in the sewage have relatively large weight. When the sewage comes into contact with the primary filter baffle, because the aperture of the filter holes gradually increases from the end of the primary filter baffle towards the top of the settling tank to the end towards the bottom of the settling tank, the small particles in the sewage are initially filtered first. The larger particles will slide down the primary filter baffle to the bottom of the settling tank by their own weight, without affecting the operation of the subsequent filter box, thus reducing the filtration pressure of the filter box.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. Because the filter layer is connected to the cover, when the lifting component lifts the cover along the box, the filter layer moves synchronously with the cover, causing the filter layer to rise along the box. The filter layer can be cleaned by the cleaning component, which is simple to operate and reduces the probability of the filter layer efficiency being affected by excessive amount of debris adhering to the filter layer. It also plays a positive guiding role in reducing the content of foreign matter in wastewater when detecting the concentration of polyacrylamide in wastewater. 2. After the tank is cleaned, the first solenoid valve is opened by controlling the controller, so that the sewage and / or foreign objects in the guide channel can be discharged along the guide channel. After the sewage and / or foreign objects in the guide channel are discharged along the guide channel, the first solenoid valve can be closed by controlling the controller. The operation is simple. 3. The cooperation between the guide rail and the slider helps to improve the stability of the drive cylinder and the auxiliary lifting plate when lifting the cover, and reduces the probability of the cover getting stuck when opening along the box due to the unstable cooperation between the cover and the auxiliary lifting plate. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of a polyacrylamide concentration detection device according to an embodiment of this application.

[0024] Figure 2 yes Figure 1 A schematic cross-sectional view of the settling chamber in a polyacrylamide concentration detection device.

[0025] Figure 3 yes Figure 1 A cross-sectional schematic diagram of the filter box in a polyacrylamide concentration detection device.

[0026] Explanation of reference numerals in the attached drawings: 1. Settling box; 11. Liquid inlet; 12. Liquid outlet; 13. Discharge outlet; 2. Filter box; 21. Box body; 211. Slot; 212. Flow guide groove; 213. Flow hole; 22. Cover; 221. Insertion groove; 3. Filter layer; 31. Insertion part; 4. Lifting assembly; 41. Drive cylinder; 42. Auxiliary lifting plate; 421. Support groove; 5. Cleaning assembly; 51. Air gun; 52. High-pressure water outlet pipe; 6. First solenoid valve; 7. Guide assembly; 71. Guide rail; 72. Slider; 8. Primary filter baffle; 81. Filter hole; 9. Second solenoid valve. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0028] This application discloses a polyacrylamide concentration detection device. (Refer to...) Figures 1-3 A polyacrylamide concentration detection device includes a settling chamber 1, which is connected to a filter chamber 2. The filter chamber 2 includes a chamber body 21 and a cover 22. A magnetic lock is provided on the chamber body 21 to hold the cover 22 in place. When it is necessary to clean the filter layer 3 inside the filter chamber 2, the magnetic lock can be de-energized, allowing the cover 22 to open along the chamber body 21. Several sets of filter layers 3 are provided on the surface where the cover 22 and the chamber body 21 are closed. Several sets of slots 211, the same number as the number of filter layers 3, are provided inside the chamber body 21. The tolerance fit between the filter layer 3 and the slots 211 is a transition fit. A lifting component 4 and a cleaning component 5 are provided inside the chamber body 21. The lifting component 4 is used to lift the cover 22 along the chamber body 21. When the lifting component 4 drives the cover 22 to be lifted along the chamber body 21, the filter layer 3 slides synchronously along the slots 211 following the cover 22. The cleaning component 5 is used to clean the lifted filter layer 3.

[0029] It should be noted that the magnetic lock is a device that uses the principle of generating a magnetic field by passing an electric current through a coil, thereby generating a magnetic attraction or repulsion force. When the magnetic lock is energized, it can attract an iron or magnetic object. When the magnetic lock is de-energized, the attraction between the magnetic lock and the iron or magnetic object disappears. This is existing technology and will not be elaborated on further here.

[0030] Specifically, the outer contour of the settling box 1 is cylindrical, and the primary filter baffle 8 is inclinedly arranged inside the settling box 1. The primary filter baffle can be fixed inside the settling box 1 by a slot or a buckle. The primary filter baffle 8 has a number of filter holes 81. The diameter of the filter holes 81 gradually increases from the end of the primary filter baffle 8 towards the top of the settling box 1 to the end towards the bottom of the settling box 1.

[0031] The settling tank 1 is divided into a first chamber and a second chamber by a primary filter baffle 8. The settling tank 1 is equipped with an inlet 11, an outlet 12, and a discharge port 13. The inlet 11 is connected to a sewage source, the outlet 12 is connected to the filter box 2, and the discharge port 13 is used to discharge large particles of foreign matter from the settling tank 1. The inlet 11 is located at the top of the first chamber, the discharge port 13 is located at the bottom of the first chamber, and the outlet 12 is located on the second chamber.

[0032] Correspondingly, a second solenoid valve 9 is installed on the settling box 1 located at the discharge port 13 of the first chamber. The second solenoid valve 9 is electrically connected to the controller. By controlling the working state of the second solenoid valve 9 through the controller, the purpose of discharging large particulate foreign objects located in the first chamber can be achieved. The operation is simple and facilitates cleaning of the first chamber.

[0033] When sewage flows into the settling tank 1, the primary filter baffle 8 buffers the sewage flowing into the settling tank 1 to slow down the flow rate of the sewage. At the same time, the overall flow rate of the sewage is still relatively fast when it flows into the settling tank 1. The large particles in the sewage have relatively large weight. When the sewage comes into contact with the primary filter baffle 8, the diameter of the filter holes 81 gradually increases from the top end of the primary filter baffle 8 towards the bottom end of the settling tank 1. This allows for the initial filtration of small particles in the sewage. Larger particles will slide down the primary filter baffle 8 to the bottom of the settling tank 1 by their own weight, without affecting the operation of the subsequent filter tank 2, thus reducing the filtration pressure of the filter tank 2.

[0034] Furthermore, the specific number of filter layers 3 can be increased or decreased according to the requirements of filter layers 3. Filter layers 3 are conventional components with foreign matter filtration capabilities. The housing 21 is provided with flow holes 213. The flow holes 213 are connected to external detection devices (components used to detect the concentration of polyacrylamide in sewage, the specific composition and working principle of which will not be described in detail here). The specific composition and working principle of which will not be described in detail here are both used to filter foreign matter in sewage. Since they have the same function, their specific number is not limited here. One set of filter layers 3 is used to illustrate its cooperation with the cover 22 and the housing 21.

[0035] The slot 211 is formed by the two side walls of the housing 21 recessed along the width direction and along the wall thickness direction. Since the width of the slot 211 and the thickness of the filter layer 3 are in a transitional fit, the filter layer 3 can be smoothly inserted or removed along the slot 211. At the same time, the slot 211 can limit the placement position of the filter layer 3 in the filter box 2, thereby improving the stability of the fit between the filter layer 3 and the filter box 2.

[0036] Correspondingly, the cover 22 is provided with an insertion groove 221, and the filter layer 3 is inserted into the insertion groove 221. The outer contour of the insertion groove 221 is T-shaped and is formed by the recess of the cover 22 along the width direction. At the same time, the end of the filter layer 3 that abuts against the cover 22 is provided with an insertion part 31, which is inserted into the insertion groove 221. Because the filter layer 3 and the insertion groove 221 are in an inserted state, it is beneficial to improve the stability of the filter layer 3 installed in the insertion groove 221. It is also convenient to remove the filter layer 3 along the cover 22 or install the filter layer 3 on the cover 22, making the operation simple.

[0037] Meanwhile, a flow guide trough 212 is provided at the bottom of the housing 21. When the filter layer 3 is located inside the housing 21, the filter layer 3 and the flow guide trough 212 are in contact. The flow guide trough 212 is formed by a recess along the thickness direction at the bottom of the housing 21, and its outline is frustoconical. Therefore, when the filter layer 3 moves away from the housing 21 along the slot 211, foreign objects inside the housing 21 will accumulate in the flow guide trough 212 during cleaning, facilitating the unified removal of foreign objects. Meanwhile, a first solenoid valve 6 is installed on the box 21 located at the guide channel 212. The first solenoid valve 6 is electrically connected to the controller. After the box 21 is cleaned, the controller controls the first solenoid valve 6 to open, so that the sewage and / or foreign objects in the guide channel 212 can be discharged along the guide channel 212. After the sewage and / or foreign objects in the guide channel 212 are discharged along the guide channel 212, the controller controls the first solenoid valve 6 to close. The operation is simple.

[0038] It should be noted here that the first solenoid valve 6 and the second solenoid valve 9 are devices used to realize or restrict the flow of fluid or non-fluid substances, and their specific composition and working principle will not be described in detail here.

[0039] Meanwhile, in this embodiment, the controller can be a PLC (Programmable Logic Controller), which includes multiple functions such as logic control, timing control, analog control, and multi-machine communication, and has a human-machine interface to facilitate the control and adjustment of the PLC. It is an existing controller, and its specific composition and working principle will not be described in detail here.

[0040] Reference Figure 1 and Figure 3 The lifting assembly 4 includes a drive cylinder 41 and an auxiliary lifting plate 42. The piston rod of the drive cylinder 41 faces the cover 22. The auxiliary lifting plate 42 is fixedly connected to the piston rod of the drive cylinder 41. When the piston rod of the drive cylinder 41 moves, the auxiliary lifting plate 42 abuts against the cover 22.

[0041] In this embodiment, two sets of lifting components 4 are provided. The two sets of lifting components 4 are located on two side walls along the length of the box 21 to improve the stability of lifting the cover 22 along the box 21. Since their components and installation methods are the same, one set of lifting components 4 will be described in detail here.

[0042] Specifically, the drive cylinder 41 is fixed to the side wall of the housing 21 by bolts, and the piston rod of the drive cylinder 41 faces the top of the housing 21. The auxiliary lifting plate 42 has a support groove 421 that matches the contour of the edge of the cover 22. The support groove 421 limits the position of the cover 22 and the auxiliary lifting plate 42 to improve the stability of the drive cylinder 41 when it cooperates with the auxiliary lifting plate 42 to lift the cover 22. When it is necessary to open the cover 22 along the housing, the cover 22 can be separated from the housing by the cooperation of the drive cylinder 41 and the auxiliary lifting plate 42, so that the cover 22 drives the filter layer 3 to be lifted along the housing 21 without the need for the operator to remove the cover 22 along the housing 21.

[0043] Furthermore, a guide assembly 7 is provided on the housing 21. The guide assembly 7 includes a guide rail 71 and a slider 72. The guide rail 71 is vertically disposed on the side wall of the housing 21, and the slider 72 is slidably disposed on the guide rail 71 and connected to the auxiliary lifting plate 42. The cooperation between the guide rail 71 and the slider 72 helps to improve the stability of the drive cylinder 41 when lifting the cover 22 with the auxiliary lifting plate 42, and reduces the probability of the cover 22 getting stuck when opening the housing 21 due to unstable cooperation between the cover 22 and the auxiliary lifting plate 42.

[0044] Reference Figure 1 The cleaning component 5 includes an air gun 51 and a high-pressure water outlet pipe 52. The air gun 51 is connected to an external air pump through a corrugated pipe, and the high-pressure water outlet pipe 52 is connected to an external water source through a corrugated pipe. The air gun 51 is used to clean the filter layer 3.

[0045] Specifically, after the cover 22 is lifted by the drive cylinder 41 and the auxiliary lifting plate 42, the filter layer 3 moves synchronously with the cover 22, thereby causing the filter layer 3 to rise along the slot 211. It is worth noting in this embodiment that when the piston rod of the drive cylinder 41 is extended and at the limit position of the movement of the auxiliary lifting plate 42, the filter layer 3 is not completely separated from the slot 211. When it is necessary to completely separate the filter layer 3 from the slot 211, the operator needs to remove the cover 22 completely along the box 21.

[0046] Furthermore, after the filter layer 3 is raised, the operator can use the air gun 51 to clean the filter layer 3, using compressed air to remove foreign objects located on the filter layer 3, thereby achieving the purpose of cleaning the filter layer 3, facilitating the cleaning of the filter layer 3, and at the same time helping to reduce the replacement frequency of the filter layer 3.

[0047] Correspondingly, when there are many foreign objects in the filter layer 3, the high-pressure water pipe 52 can be used to flush the filter layer 3 first, so that the foreign objects are peeled off along the filter layer 3 and flow into the box 21, or splash into the production site. Then, the air gun 51 can be used to clean the filter layer 3 again, which helps to improve the cleaning efficiency of the filter layer 3.

[0048] The implementation principle of the polyacrylamide concentration detection device in this application embodiment is as follows: Wastewater undergoes initial sedimentation in a settling tank 1, effectively separating larger foreign matter from the wastewater. Subsequently, the wastewater reaches a filter tank 2, where it is filtered by several sets of filter layers 3, effectively reducing the amount of foreign matter in the wastewater. When cleaning of the filter layers 3 in the filter tank 2 is required, the magnetic lock can be de-energized, allowing the cover 22 to open along the tank body 21. Since the filter layers 3 are connected to the cover 22, when the lifting component 4 lifts the cover 22 along the tank body 21, the filter layers 3 move synchronously with the cover 22, causing the filter layers 3 to rise along the tank body 21. The cleaning component 5 can then clean the filter layers 3. This simple operation reduces the probability of excessive debris adhering to the filter layers 3 affecting their efficiency, and plays a positive guiding role in reducing the content of foreign matter in wastewater when detecting the polyacrylamide concentration.

[0049] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A polyacrylamide concentration detection device, comprising a settling chamber (1), wherein the settling chamber (1) is connected to a filter chamber (2), characterized in that: The filter box (2) includes a box body (21) and a cover (22). A magnetic lock is provided on the box body (21) to attract the cover (22) to the box body (21). Several sets of filter layers (3) are provided on the surface of the cover (22) that covers the box body (21). Several sets of slots (211) with the same number as the filter layers (3) are opened in the box body (21). The tolerance between the filter layers (3) and the slots (211) is matched. The fit is transitional. The housing (21) is provided with a lifting component (4) and a cleaning component (5). The lifting component (4) is used to lift the cover (22) along the housing (21). When the lifting component (4) drives the cover (22) to lift along the housing (21), the filter layer (3) slides synchronously along the slot (211) with the cover (22). The cleaning component (5) is used to clean the filter layer (3) after it is lifted.

2. The polyacrylamide concentration detection device according to claim 1, characterized in that: The cover (22) is provided with a plug groove (221), and the filter layer (3) is plugged into the plug groove (221).

3. The polyacrylamide concentration detection device according to claim 2, characterized in that: The bottom of the housing (21) is provided with a flow guide groove (212). When the filter layer (3) is located inside the housing (21), the filter layer (3) and the flow guide groove (212) are in contact.

4. The polyacrylamide concentration detection device according to claim 3, characterized in that: A first solenoid valve (6) is provided on the housing (21) located at the flow guide channel (212), and the first solenoid valve (6) is electrically connected to the controller.

5. The polyacrylamide concentration detection device according to claim 1, characterized in that: The lifting assembly (4) includes a drive cylinder (41) and an auxiliary lifting plate (42). The piston rod of the drive cylinder (41) faces the cover (22). The auxiliary lifting plate (42) is fixedly connected to the piston rod of the drive cylinder (41). When the piston rod of the drive cylinder (41) moves, the auxiliary lifting plate (42) abuts against the cover (22).

6. The polyacrylamide concentration detection device according to claim 1, characterized in that: The cleaning component (5) includes an air gun (51) connected to an external air pump, and the air gun (51) is used to clean the filter layer (3).

7. The polyacrylamide concentration detection device according to claim 5, characterized in that: The housing (21) is provided with a guide assembly (7), which includes a guide rail (71) and a slider (72). The guide rail (71) is arranged vertically on the side wall of the housing (21), and the slider (72) is slidably arranged on the guide rail (71). The slider (72) is connected to the auxiliary lifting plate (42).

8. The polyacrylamide concentration detection device according to claim 1, characterized in that: The primary filter baffle (8) is inclinedly arranged inside the settling box (1). The primary filter baffle (8) has a plurality of filter holes (81). The diameter of the filter holes (81) gradually increases from the end of the primary filter baffle (8) toward the top of the settling box (1) to the end toward the bottom of the settling box (1).

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