A solid particulate contaminant mixing injection device

Abstract

The utility model relates to medium filtration purification technical field, concretely relates to a solid particle pollutant mixed injection device. The utility model provides a solid particle pollutant mixed injection device, including mobile car, cylinder, pump body, discharge pipe, backflow pipe, filling pipe and joint mechanism, the pump body with the cylinder all install on mobile car, be equipped with oil inlet and oil outlet on the cylinder, the oil inlet is higher than the oil outlet, the oil outlet of cylinder with the input of pump body is linked together through pipeline. Use this solid particle pollutant mixed injection device to fill preparation liquid, can make mixture mix evenly, prevent solid particle pollutant deposit, still can fill preparation liquid accurately to test system, thereby provide strong technical guarantee for the performance test of coalescer to more scientific appraisal its performance parameter.

Description

Technical Field

[0001] This utility model relates to the field of media filtration and purification technology, specifically to a solid particulate pollutant mixing and injection device. Background Technology

[0002] Coalescing devices are widely used in petrochemical, environmental protection, mining and metallurgy, power, and water treatment industries. Their ability to filter solid particulate pollutants is a key indicator of their performance. This requires adding solid particulate pollutants to the test system to verify the performance parameters of the liquid coalescer during performance testing.

[0003] There is a lack of dedicated solid particulate contaminant mixing and injection devices when testing the ability of coalescers to filter solid particulate contaminants. Utility Model Content

[0004] The problem this invention aims to solve is that there is currently a lack of dedicated solid particulate contaminant filling devices for testing the ability of coalescers to filter solid particulate contaminants.

[0005] Technical solution A solid particulate pollutant mixing and injection device includes a mobile vehicle, a cylinder, a pump body, a discharge pipe, a return pipe, an injection pipe, and a connector mechanism; Both the pump body and the cylinder are mounted on the mobile vehicle. The cylinder is provided with an oil inlet and an oil outlet. The oil inlet is higher than the oil outlet. The oil outlet of the cylinder is connected to the inlet of the pump body through a pipe. One end of the discharge pipe is connected to the output port of the pump body, and the other end is connected to the filling pipe. One end of the return pipe is connected to the hole on the side wall of the discharge pipe, and the other end is connected to the oil inlet of the cylinder. At least one oil outlet valve is installed on one end of the filling pipe near the discharge pipe, and a connector mechanism is connected to the outlet of the filling pipe for connection with the connector of the testing system.

[0006] According to one embodiment of the present invention, a flow meter and a pressure gauge are installed on the filling pipe.

[0007] According to one embodiment of the present invention, a discharge valve is installed on the pipeline between the oil outlet of the cylinder and the inlet of the pump body.

[0008] According to one embodiment of the present invention, a return valve for controlling its on / off state is installed on the return pipe.

[0009] According to one embodiment of the present invention, the connector mechanism includes a connector base, a valve sleeve, a first spring, a valve core, and a dust cover; The connector base has a channel that penetrates the connector base. The channel includes a first flow channel hole and a second flow channel hole that are connected in sequence. The inner diameter of the first flow channel hole is smaller than the inner diameter of the second flow channel hole. One end of the valve sleeve extends into the second flow channel hole and is fixed to the inner wall of the second flow channel hole. The space formed between the valve sleeve and the second flow channel hole is a water inlet chamber. The valve core is slidably assembled inside the valve sleeve. The first spring is horizontally disposed inside the water inlet chamber, and one end of the first spring is fixed to the inner wall of the connector base, while the other end is fixed to the valve core. The outer circumferential surface of the valve core is provided with multiple valve core water inlets. When the connector mechanism is in the closed state, the valve core inlet of the valve core is in contact with the inner wall of the valve sleeve; when the connector mechanism is in the water-flow state, the valve core inlet of the valve core extends into the water inlet cavity, so that the valve core inlet of the valve core is connected to the water inlet cavity. The dust cover is detachably fitted onto the opening at the end of the valve sleeve furthest from the connector base.

[0010] According to one embodiment of the present invention, the internal space of the valve sleeve includes a first cylindrical cavity and a second cylindrical cavity that are connected to each other. The diameter of the first cylindrical cavity is smaller than the diameter of the second cylindrical cavity. When the first end of the valve sleeve extends into the connector base, the first cylindrical cavity is located inside the connector base. The valve core includes a disc, a cylinder, and a valve core base connected in sequence. The outer diameter of the valve core base is the same as the inner diameter of the first cylindrical cavity. The diameter of the cylinder is smaller than the outer diameter of the valve core base, and the diameter of the disc is larger than the diameter of the valve core base. Multiple valve core inlets are provided on the outer circumferential surface of the valve core base near one end of the cylinder, and at least one first sealing ring is fitted on the cylinder.

[0011] According to one embodiment of the present invention, a plurality of embedding grooves are provided on the inner wall of the second cylindrical cavity of the valve sleeve, the plurality of embedding grooves are evenly arranged around the axis of the valve sleeve, and a limiting ball is installed in each embedding groove; the dust cover includes a cylindrical block and a circular plate connected in sequence, the diameter of the cylindrical block is smaller than the diameter of the circular plate, and the diameter of the cylindrical block is the same as the inner diameter of the second cylindrical cavity; An annular groove is formed on the outer circumferential surface of the cylindrical block.

[0012] According to one embodiment of the present invention, a drainage cavity is provided in the valve core base, the drainage cavity is coaxially arranged with the valve core base, and the valve core inlet is connected to the drainage cavity.

[0013] According to one embodiment of the present invention, an outer sleeve is provided on the outside of the valve sleeve, the inner wall of the outer sleeve is provided with an annular protrusion, the outer circumferential surface of the valve sleeve is provided with a stepped surface, and a second spring is installed between the stepped surface and the annular protrusion.

[0014] According to one embodiment of the present invention, a chain is installed between the dust cover and the connector base.

[0015] The beneficial effects of this utility model are: Using this solid particulate pollutant mixing and injection device to add the preparation solution can not only ensure uniform mixing and prevent the precipitation of solid particulate pollutants, but also accurately add the preparation solution to the testing system, thereby providing strong technical support for the performance testing of the coalescer and enabling more scientific identification of its performance parameters. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 A schematic diagram provided for an embodiment of this utility model; Figure 2 A schematic diagram of the filling tube provided in an embodiment of this utility model; Figure 3 A cross-sectional view of the connector mechanism provided in an embodiment of this utility model; Figure 4 A front view of the valve core provided in an embodiment of this utility model; Figure 5 A schematic diagram of the connecting joint provided in an embodiment of this utility model.

[0018] Icons: 1. Moving cart; 101. Push handle; 2. Cylinder; 201. Feed inlet; 3. Discharge valve; 4. Screw pump; 5. Discharge pipe; 6. Return pipe; 7. Filling pipe; 8. Return valve; 9. Pressure gauge; 10. Oil outlet valve; 11. Flow meter; 12. Connector mechanism; 121. Connector base; 122. Valve sleeve; 123. First spring; 124. Valve core; 1241. Valve core base; 1242. Valve core inlet; 1243. Cylindrical body; 1244. Disc; 125. First sealing ring; 126. Dust cover; 127. Limit ball; 128. Outer sleeve; 129. Second spring; 1210. Second sealing ring; 1211. Chain; 1212. Inlet chamber; 13. Connecting joint; 131. Flange. Detailed Implementation

[0019] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] like Figures 1-5 As shown, one embodiment of this utility model provides a solid particulate pollutant mixing and injection device, including a mobile vehicle 1, a cylinder 2, a pump body, a discharge pipe 5, a return pipe 6, and an injection pipe 7; Both the pump body and the cylinder 2 are mounted on the mobile vehicle 1. The cylinder 2 is provided with an oil inlet and an oil outlet, with the oil inlet being higher than the oil outlet. The oil outlet of the cylinder 2 is connected to the input port of the pump body through a pipe. One end of the discharge pipe 5 is connected to the output port of the pump body, and the other end is connected to the filling pipe 7. One end of the return pipe 6 is connected to the hole on the side wall of the discharge pipe 5, and the other end is connected to the oil inlet of the cylinder 2. At least one oil outlet valve 10 is installed on the end of the filling pipe 7 near the discharge pipe 5.

[0021] In this embodiment, before adding the mixture of medium and solid particulate contaminants into the testing system, a quantitative amount of medium and a quantitative amount of solid particulate contaminants are obtained through a measuring cylinder and an electronic scale, and then the quantitative amount of medium and the quantitative amount of solid particulate contaminants are injected into the cylinder 2. Next, push the mobile vehicle 1 until it is close to the test system, and then align the connector of the test system with the connector mechanism 12 of the filling pipe 7; Next, check all valves to ensure they are all closed. Then, start the pump. The prepared solution enters the pump body from the oil outlet at the bottom of cylinder 2, then flows from the pump's output port into the discharge pipe 5, then flows along the discharge pipe 5 into the return pipe 6, and finally returns to cylinder 2, completing one cycle. The pump then operates continuously for a set time to allow the prepared solution to repeat the above cycle, ensuring uniform mixing of the medium and solid particulate contaminants and preventing sedimentation. After the set time has elapsed, the prepared solution is ready.

[0022] Next, the oil outlet valve 10 is opened. At this time, part of the prepared liquid flowing out from the outlet pipe 5 enters the cylinder 2 through the return pipe 6, repeating the above-mentioned circulating stirring process. The other part of the prepared liquid flowing out from the outlet pipe 5 is pumped into the filling pipe 7, thereby being added to the test system. The filling rate of the prepared liquid can be adjusted by adjusting the opening of the oil outlet valve 10.

[0023] The above operations can ensure uniform mixing, prevent the precipitation of solid particulate contaminants, and accurately add the preparation solution to the testing system, thus providing strong technical support for the performance testing of the coalescer and enabling a more scientific identification of its performance parameters.

[0024] It should be added that there is usually a filling tank before the centrifugal pump of the test system, and the filling tank is equipped with a connector. In this embodiment, the filling pipe 7 is quickly connected to the connector through the connector mechanism 12.

[0025] In this embodiment, as Figure 1 As shown, the cylinder 2 is vertically installed inside the mobile vehicle 1, and the pump body is a screw pump 4, which is horizontally installed on the inner bottom wall of the mobile vehicle 1, and the screw pump 4 is located below the cylinder 2. The oil outlet at the bottom of the cylinder 2 is connected to the inlet of the screw pump 4 through a pipe, and a discharge valve 3 for controlling its on / off state is installed on the pipe.

[0026] In this embodiment, the discharge pipe 5 is vertically installed on one side of the mobile vehicle 1. The first end of the discharge pipe 5 is connected to the output end of the screw pump 4, and the second end is connected to the filling pipe 7. The second end of the discharge pipe 5 is higher than the top surface of the mobile vehicle 1. The return pipe 6 is an L-shaped pipe. A hole is provided on the side wall of the discharge pipe 5. The first end of the return pipe 6 is sealed to the hole on the side wall of the discharge pipe 5, and the second end is sealed to the oil inlet at the top of the cylinder 2. Furthermore, a return valve 8 is installed on the return pipe 6 to control its on / off state.

[0027] In this embodiment, before injecting a fixed amount of medium and a fixed amount of solid particulate contaminants into the cylinder 2, the discharge valve 3 is ensured to be closed, and then the fixed amount of medium and a fixed amount of solid particulate contaminants are injected into the cylinder 2.

[0028] Next, open the return valve 8 and the discharge valve 3, and close the oil outlet valve 10. Then, start the screw pump 4. The prepared liquid enters the screw pump 4 from the oil outlet at the bottom of the cylinder 2, and then enters the discharge pipe 5 from the output port of the screw pump 4. Since the oil outlet valve 10 is closed at this time, the prepared liquid can only flow into the return pipe 6 along the discharge pipe 5, and finally enter the cylinder 2 again, completing one cycle. Afterward, the pump continues to work for a certain period of time according to the set time, so that the prepared liquid repeats the above cycle process. After the set time has elapsed, the prepared liquid is ready.

[0029] There are then two working modes: The first working mode is as follows: open the oil outlet valve 10 and close the return valve 8. At this time, the screw pump 4 pumps the prepared liquid in the cylinder 2 to the discharge pipe 5. Then the prepared liquid in the discharge pipe 5 is pumped out to the filling pipe 7, and finally sprayed out from the filling pipe 7 and added to the test system.

[0030] The second working mode is as follows: the return valve 8 is kept open, and then the oil outlet valve 10 is opened. At this time, part of the prepared liquid flowing out from the outlet pipe 5 enters the cylinder 2 through the return pipe 6 and repeats the above-mentioned circulating stirring process. The other part of the prepared liquid flowing out from the outlet pipe 5 is pumped into the filling pipe 7 and thus added to the test system.

[0031] Compared to the first working mode, the second filling mode allows for simultaneous circulating and stirring during filling, resulting in less precipitation of solid particulate contaminants in the prepared solution.

[0032] In this embodiment, as Figure 2 As shown, a pressure gauge 9 and a flow meter 11 are installed sequentially on the filling pipe 7. During the filling process, the readings of the pressure gauge 9 and the flow meter 11 should be constantly monitored. If the readings of the pressure gauge 9 and the flow meter 11 change significantly in a short period of time, it may indicate a pipe blockage. In this case, the machine should be stopped immediately to clear the pipe. In addition, the flow meter 11 facilitates the adjustment of the filling flow rate.

[0033] Optionally, a pressure gauge 9 and a flow meter 11 are also installed on the return pipe 6.

[0034] In this embodiment, as Figure 1 As shown, a feed inlet 201 is provided on the side wall of the cylinder 2, which is connected to the external environment. A suitable amount of medium and solid particulate pollutant mixture can be injected into the cylinder 2 through the feed inlet 201.

[0035] In this embodiment, the connector mechanism 12 is as follows: Figure 3 As shown, the connector mechanism 12 includes a connector base 121, a valve sleeve 122, a first spring 123, a valve core 124, and a dust cover 126; The connector base 121 has a channel penetrating through it. The channel includes a first flow channel hole and a second flow channel hole connected in sequence. The inner diameter of the first flow channel hole is smaller than that of the second flow channel hole, and the first and second flow channel holes are coaxially arranged. The open end of the first flow channel hole is sealed to the outlet of the filling pipe 7, for example, through a flange connection.

[0036] The internal space of the valve sleeve 122 includes a first cylindrical cavity and a second cylindrical cavity that are connected in sequence. The diameter of the first cylindrical cavity is smaller than the diameter of the second cylindrical cavity. The first end of the valve sleeve 122 extends into the second flow channel hole of the connector base 121 and is sealed to the connector base 121. For ease of description, after the valve sleeve 122 extends into the second flow channel hole, the remaining space of the second flow channel hole is named the water inlet cavity 1212. The first cylindrical cavity of the valve sleeve 122 is located at the first end of the valve sleeve 122, that is, the first cylindrical cavity of the valve sleeve 122 extends into the connector base 121.

[0037] In this embodiment, as Figure 3 and Figure 4 As shown, the valve core 124 includes a disc 1244, a cylinder 1243, and a valve core base 1241 connected in sequence. The valve core base 1241 is cylindrical, and its outer diameter is the same as the inner diameter of the first cylindrical cavity of the valve sleeve 122. The diameter of the cylinder 1243 is smaller than the outer diameter of the valve core base 1241, and the diameter of the disc 1244 is larger than the diameter of the valve core base 1241. Multiple valve core inlets 1242 are provided on the outer circumferential surface of the valve core base 1241 near the end of the cylinder 1243. The multiple valve core inlets 1242 are evenly arranged around the axis of the valve core base 1241. At least one first sealing ring 125 is fitted on the cylinder 1243.

[0038] Furthermore, the valve core base 1241 of the valve core 124 is slidably assembled inside the valve sleeve 122, and the cylinder 1243 and disc 1244 of the valve core 124 are located inside the water inlet chamber 1212. That is to say, the cylinder 1243 and disc 1244 of the valve core 124 are located outside the valve sleeve 122.

[0039] The first spring 123 is horizontally disposed in the water inlet chamber 1212, and one end of the first spring 123 is fixed to the connection between the first flow channel hole and the second flow channel hole of the connector base 121, and the other end is fixed to the disc 1244 of the valve core 124.

[0040] In this embodiment, a dust cover 126 is installed at the opening of the valve sleeve 122 at the end away from the connector base 121.

[0041] In this embodiment, when the connector mechanism 12 is in the closed state, such as Figure 3 As shown, the first spring 123 provides a rightward thrust to the valve core 124, causing the valve core base 124 of the valve core 124 to extend entirely into the valve sleeve 122. The valve core inlet 1242 on the valve core base 124 adheres to the inner wall of the first cylindrical cavity of the valve sleeve 122, and the first sealing ring 125 is tightly fitted to the left end face of the valve sleeve 122. This prevents water in the inlet cavity 1212 from entering the valve core inlet 1242 on the valve core base 124, thus achieving the water shut-off effect.

[0042] When it is necessary to connect with the test system connector, first remove the dust cover 126, then insert the test system connector into the valve sleeve 122. The test system connector abuts against the valve core 124 and pushes the valve core 124 to the left, so that the first spring 123 is in a compressed state. At this time, the left end of the valve core base 1241 extends out from the first cylindrical cavity of the valve sleeve 122 and enters the water inlet cavity 1212. That is to say, the valve core inlet 1242 of the valve core base 1241 is in a communication state with the water inlet cavity 1212, and at this time the first sealing ring 125 is detached from the valve sleeve 122 and is entirely located in the water inlet cavity 1212.

[0043] In this way, the prepared liquid in the filling pipe 7 enters the water inlet chamber 1212 through the first flow channel hole of the connector base 121, and then enters the valve core base 1241 through the valve core inlet 1242, and finally flows into the connector of the test system from the outlet on the right side of the valve core base 1241.

[0044] It should be noted that when the connector mechanism 12 is in the water-cut-off state, the first sealing ring 125 is pressed by the disc 1244 onto the left end face of the valve sleeve 122, thereby preventing the prepared liquid in the water inlet chamber 1212 from entering the gap between the outer circumferential surface of the valve core base 1241 and the inner wall of the valve sleeve 122, resulting in a good sealing effect.

[0045] In this embodiment, as Figure 3 and Figure 4 As shown, a drain chamber is provided inside the valve core base 1241. The drain chamber is coaxially arranged with the valve core base 1241. The valve core inlet 1242 at one end of the valve core base 1241 near the cylinder 1243 is connected to the drain chamber.

[0046] In this embodiment, as Figure 3 As shown, the inner wall of the second cylindrical cavity of the valve sleeve 122 is provided with multiple embedding grooves, which are evenly arranged around the axis of the valve sleeve 122. A limiting ball 127 is installed in each embedding groove. The dust cover 126 includes a cylindrical block and a circular plate connected in sequence. The diameter of the cylindrical block is smaller than the diameter of the circular plate, and the diameter of the cylindrical block is the same as the inner diameter of the second cylindrical cavity. Furthermore, the cylindrical block is a rubber block, and an annular groove is formed on the outer circumferential surface of the cylindrical block.

[0047] When installing the dust cover 126, simply align the cylindrical block of the dust cover 126 with the opening of the valve sleeve 122 and then push the dust cover 126 forcefully. Since the cylindrical block is made of rubber, under strong force, the limiting ball 127 inside the valve sleeve 122 will automatically embed into the annular groove of the cylindrical block. In this way, a relatively stable connection is established between the dust cover 126 and the valve sleeve 122, effectively preventing the dust cover 126 from falling off.

[0048] Optionally, the cylindrical block of the dust cover 126 can be made of plastic or metal, while the limiting ball 127 can be made of rubber. This allows the limiting ball 127 to enter the annular groove of the dust cover 126 when the dust cover 126 is installed.

[0049] It should be noted that the connector of the testing system is a connecting connector 13. The diameter of the connecting connector 13 is the same as the diameter of the second cylindrical cavity of the valve sleeve 122. The circumferential surface of the connecting connector 13 is also provided with an annular groove of the same specifications as the aforementioned annular groove. In addition, a flange 131 is provided on the circumferential surface of the connecting connector 13. A flange is provided at the water inlet pipe of the filling tank. The connecting connector 13 and the water inlet pipe of the filling tank are sealed and connected through the flange.

[0050] When the connector mechanism 12 is connected to the connection connector 13 of the test system, simply remove the dust cover 126 and insert the connection connector 13 into the valve sleeve 122 until the limiting ball 127 inside the valve sleeve 122 is embedded in the annular groove of the connection connector 13. At this time, the water passage of the connection connector 13 is in communication with the drainage chamber in the valve core base 1241. The prepared liquid naturally flows into the water passage of the connection connector 13 through the drainage chamber in the valve core base 1241 and is finally discharged into the filling tank of the test system.

[0051] Optionally, to improve the sealing performance of the joint mechanism 12, such as... Figure 3 As shown, an outer sleeve 128 is fitted over the valve sleeve 122. The inner wall of the outer sleeve 128 near the right side has an annular protrusion. A stepped surface is provided on the outer circumferential surface of the valve sleeve 122. The annular protrusion of the outer sleeve 128 fits against the outer circumferential surface of the valve sleeve 122. A second spring 129 is installed between the stepped surface and the annular protrusion.

[0052] Thus, when the connecting joint 13 is inserted into the valve core 124, the end face of the flange 131 of the connecting joint 13 pushes the outer sleeve 128 to the left, and the second spring 129 is compressed until the end face of the flange 131 is in contact with the right end face of the valve sleeve 122. Because the second spring 129 always applies a force to the right to the outer sleeve 128, the right end face of the outer sleeve 128 remains tightly against the flange 131 of the connecting joint 13. This makes it difficult for external dust to enter the interior of the joint mechanism 12, achieving a dustproof effect and improving the sealing performance when the joint mechanism 12 and the connecting joint 13 are connected.

[0053] Optional, such as Figure 3As shown, a chain 1211 is installed between the dust cover 126 and the connector base 121. Threaded heads are installed at both ends of the chain 1211. Threaded holes are formed on the circular plate of the dust cover 126 and on the outer circumferential surface of the connector base 121. To connect the chain 1211, simply thread the threaded heads at both ends of the chain 121 onto the threaded holes on the dust cover 126 and the connector base 121, respectively. Because of the chain 1211, the dust cover 126 will not be lost.

[0054] Optionally, a groove is provided on the inner wall of the second cylindrical cavity of the valve sleeve 122, and a second sealing ring 1210 is provided in the groove. When the connecting joint 13 is inserted into the connector mechanism 12, the outer peripheral surface of the connecting joint 13 is tightly fitted with the second sealing ring 1210, further improving the sealing performance when the connector mechanism 12 and the connecting joint 13 are connected.

[0055] It can be seen that the joint mechanism 12 and the connecting joint 13 can quickly connect and disconnect the filling pipe 7 and the filling tank of the test system. Moreover, the joint mechanism 12 and the connecting joint 13 have good sealing performance when connected, and leakage will basically not occur.

[0056] In this embodiment, the mobile vehicle 1 includes a vehicle body and multiple wheels, with the wheels located at the bottom of the vehicle body. A push handle 101 is also installed on the side wall of the vehicle body. This gives the refueling device good mobility, making it more practical.

[0057] In this embodiment, a controller and a power supply are also installed on the mobile vehicle 1, wherein the power supply is used to supply power to various electrical components. The screw pump 4, flow meter 11, and pressure gauge 9 are respectively connected to the controller for signal transmission.

[0058] In summary, the process of adding the prepared solution to the test system using this solid particulate pollutant mixing and injection device can be roughly divided into the following steps: First, the injection of the mixture: a certain amount of medium and a certain amount of solid particulate contaminants are obtained through a measuring cylinder and an electronic scale and injected into the cylinder 2; then the moving vehicle 1 is pushed until it approaches the filling tank of the test system, then the dust cover 126 is removed and the connector mechanism 12 of the filling pipe 7 is quickly connected to the connecting connector 13 on the filling tank.

[0059] Second, preparation of the mixture: Check the system and the status of each valve, ensuring that the wiring is normal and that all valves are closed; then, open the return valve 8 and the discharge valve 3 and start the screw pump 4. The prepared solution enters the cylinder 2 after passing through the screw pump 4, the discharge pipe 5, and the return pipe 6, completing one cycle. The screw pump 4 continues to work for a certain period of time according to the set time so that the prepared solution repeats the above cycle process, the medium and solid particulate contaminants are mixed evenly, and the preparation of the solution is completed.

[0060] Third, system injection: This is specifically divided into two working modes: The first working mode is as follows: open the oil outlet valve 10 and close the return valve 8. At this time, the screw pump 4 pumps the prepared liquid in the cylinder 2 to the discharge pipe 5. Then the prepared liquid in the discharge pipe 5 is pumped out to the filling pipe 7, and finally sprayed out from the filling pipe 7 and added to the test system.

[0061] The second working mode is as follows: the return valve 8 is kept open, and then the oil outlet valve 10 is opened. At this time, part of the prepared liquid flowing out from the outlet pipe 5 enters the cylinder 2 through the return pipe 6 and repeats the above-mentioned circulating stirring process. The other part of the prepared liquid flowing out from the outlet pipe 5 is pumped into the filling pipe 7 and thus added to the test system.

[0062] In addition, during the filling process, the readings of pressure gauge 9 and flow meter 11 should be observed at all times to prevent pipeline blockage and adjust the flow in a timely manner.

[0063] It is evident that using this solid particulate pollutant mixing and injection device to add the prepared solution to the test system has the following advantages: First, the circulating stirring ensures uniform mixing of the mixture, preventing the sedimentation of solid particulate contaminants. Second, it features two operating modes. In the second mode, the mixture can be continuously stirred to improve the mixing rate while the prepared solution is precisely added to the testing system.

[0064] Third, the connector mechanism 12 and the connecting connector 13 can quickly connect and disconnect the filling pipe 7 and the filling tank of the test system. The connector mechanism 12 and the connecting connector 13 have good sealing performance when connected, and there is basically no leakage. This can more effectively avoid the problems caused by leakage when injecting the mixture.

[0065] In the description of this utility model, it should be noted that the terms "upper" and "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0066] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0067] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A solid particulate pollutant mixing and injection device, characterized in that, It includes a mobile vehicle (1), a cylinder (2), a pump body, a discharge pipe (5), a return pipe (6), a filling pipe (7), and a connector mechanism (12). The pump body and the cylinder (2) are both installed on the mobile vehicle (1). The cylinder (2) is provided with an oil inlet and an oil outlet. The oil inlet is higher than the oil outlet. The oil outlet of the cylinder (2) is connected to the input port of the pump body through a pipe. One end of the discharge pipe (5) is connected to the output port of the pump body, and the other end is connected to the filling pipe (7). One end of the return pipe (6) is connected to the hole on the side wall of the discharge pipe (5), and the other end is connected to the oil inlet of the cylinder (2). At least one oil outlet valve (10) is installed on one end of the filling pipe (7) near the discharge pipe (5), and the outlet of the filling pipe (7) is connected to a connector mechanism (12), which is used to connect with the connector of the test system. The connector mechanism (12) includes a connector base (121), a valve sleeve (122), a first spring (123), a valve core (124), and a dust cover (126). The connector base (121) has a channel that passes through the connector base (121). The channel includes a first flow channel hole and a second flow channel hole that are connected in sequence. The inner diameter of the first flow channel hole is smaller than the inner diameter of the second flow channel hole. One end of the valve sleeve (122) extends into the second flow channel hole and is fixed to the inner wall of the second flow channel hole. The space formed between the valve sleeve (122) and the second flow channel hole is the water inlet chamber (1212). The valve core (124) is slidably assembled inside the valve sleeve (122), and the first spring (123) is horizontally arranged in the water inlet chamber (1212). One end of the first spring (123) is fixed to the inner wall of the connector base (121), and the other end is fixed to the valve core (124). The outer circumferential surface of the valve core (124) is provided with a plurality of valve core water inlets (1242). When the connector mechanism (12) is in the closed state, the valve core inlet (1242) of the valve core (124) is in contact with the inner wall of the valve sleeve (122); when the connector mechanism (12) is in the water-flow state, the valve core inlet (1242) of the valve core (124) extends into the water inlet chamber (1212) so that the valve core inlet (1242) of the valve core (124) is connected to the water inlet chamber (1212); The dust cover (126) is detachably fitted onto the opening at the end of the valve sleeve (122) away from the connector base (121).

2. The solid particulate pollutant mixing and injection device according to claim 1, characterized in that, A flow meter (11) and a pressure gauge (9) are installed on the filling pipe (7).

3. The solid particulate pollutant mixing and injection device according to claim 1, characterized in that, A discharge valve (3) is installed on the pipeline between the oil outlet of the cylinder (2) and the inlet of the pump body.

4. The solid particulate pollutant mixing and injection device according to claim 1, characterized in that, The return pipe (6) is equipped with a return valve (8) for controlling its opening and closing.

5. The solid particulate pollutant mixing and injection device according to claim 1, characterized in that, The internal space of the valve sleeve (122) includes a first cylindrical cavity and a second cylindrical cavity that are connected. The diameter of the first cylindrical cavity is smaller than the diameter of the second cylindrical cavity. When the first end of the valve sleeve (122) extends into the connector base (121), the first cylindrical cavity is located inside the connector base (121). The valve core (124) includes a disc (1244), a cylinder (1243), and a valve core base (1241) connected in sequence. The outer diameter of the valve core base (1241) is the same as the inner diameter of the first cylindrical cavity. The diameter of the cylinder (1243) is smaller than the outer diameter of the valve core base (1241), and the diameter of the disc (1244) is larger than the diameter of the valve core base (1241). Multiple valve core inlets (1242) are provided on the outer circumferential surface of the valve core base (1241) near the end of the cylinder (1243), and at least one first sealing ring (125) is fitted on the cylinder (1243).

6. The solid particulate pollutant mixing and injection device according to claim 5, characterized in that, The inner wall of the second cylindrical cavity of the valve sleeve (122) is provided with a plurality of embedding grooves, which are evenly arranged around the axis of the valve sleeve (122), and a limiting ball (127) is installed in each embedding groove; the dust cover (126) includes a cylindrical block and a circular plate connected in sequence, the diameter of the cylindrical block is smaller than the diameter of the circular plate, and the diameter of the cylindrical block is the same as the inner diameter of the second cylindrical cavity; An annular groove is formed on the outer circumferential surface of the cylindrical block.

7. A solid particulate pollutant mixing and injection device according to claim 5, characterized in that, The valve core base (1241) is provided with a drainage cavity, which is coaxially arranged with the valve core base (1241), and the valve core inlet (1242) is connected to the drainage cavity.

8. A solid particulate pollutant mixing and injection device according to claim 1, characterized in that, An outer sleeve (128) is provided on the outside of the valve sleeve (122). The inner wall of the outer sleeve (128) is provided with an annular protrusion. The outer circumferential surface of the valve sleeve (122) is provided with a stepped surface. A second spring (129) is installed between the stepped surface and the annular protrusion.

9. A solid particulate pollutant mixing and injection device according to claim 1, characterized in that, A chain (1211) is installed between the dust cover (126) and the connector base (121).

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