Hybrid injector quantitative check valve

Abstract

The utility model relates to the technical field of mixed injector, especially a kind of mixed injector quantitative check valve, including first box, first pipeline is connected in the side of first box, first pipeline is communicated with first box, first pipeline is bent and is set as "S" type and its other end is placed in the above first box setting;Second box is equipped above first box, and second box is connected with first box by connecting pipe, and the size of the pipe diameter of connecting pipe is less than half the size of the inner diameter length of first box, and flowmeter is set on connecting pipe;Second pipeline is installed in the side of second box, and second pipeline is bent as "S" type.The utility model realizes quantitative delivery by flowmeter on connecting pipe real-time monitoring liquid flow, and it is combined controller to ensure that mixed liquid proportion is accurate, avoid the influence of mixed effect due to proportion deviation;Meanwhile, through the pipe diameter design of connecting pipe and the inclined surface structure of flow guide seat, liquid fills pipeline, and reduces the measurement error of flowmeter.

Description

Technical Field

[0001] This utility model relates to the field of mixing injector technology, and in particular to a quantitative check valve for mixing injectors. Background Technology

[0002] A mixing ejector, also known as a gas pump, is an industrial device that uses hydrodynamic effects to mix multiphase media. It is widely used in chemical, environmental protection, energy, and pharmaceutical industries. Its core function is to mix two or more gases or liquids, and it is commonly found on liquefied natural gas (LNG) ships.

[0003] When using a mixing ejector, a check valve needs to be installed at the port to prevent backflow of liquid during transport, which could affect the mixing of multiple liquids and the normal operation of the mixing ejector. However, existing check valves, being essential in the liquid transport process, only serve to limit backflow. For subsequent mixing of multiple liquids, the continuous flow of liquids can lead to issues such as whether the pipeline is completely full, resulting in potential errors in the proportions of the liquids entering the mixing ejector. This can cause excessive deviations in the final mixture, affecting the subsequent use of the mixing ejector. Therefore, we propose a quantitative check valve for mixing ejectors. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by proposing a quantitative check valve for a mixing injector.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a quantitative check valve for a mixing injector, comprising a first housing, a first pipe connected to the side of the first housing, the first pipe communicating with the first housing, the first pipe being bent in an "S" shape and its other end positioned above the first housing;

[0006] A second box is provided above the first box. The second box is connected to the first box by a connecting pipe. The diameter of the connecting pipe is less than half the length of the inner diameter of the first box, and a flow meter is installed on the connecting pipe.

[0007] A second pipe is installed on the side of the second box. The second pipe is bent in an "S" shape, and the other end of the second pipe is located below the second box.

[0008] Preferably, a control box is installed on the outer wall of the second housing, and a controller is installed inside the control box. The controller is connected to the flow meter via wires.

[0009] Preferably, a rotating seat is provided inside the second box, and a drive shaft is connected to the top of the rotating seat. The drive shaft passes through the top of the second box and is connected to a drive motor. The drive shaft is rotatably connected to the second box, and the drive motor is connected to the controller through a wire. A support frame is installed on the side of the drive motor, and several bolts are arranged at intervals on the support frame. The ends of the bolts are threaded to a fixed seat, and the fixed seat is fixedly installed along the top edge of the second box.

[0010] A through hole is provided on the side of the second box near the second pipe to connect the second box to the second pipe. An "L"-shaped channel is provided inside the rotating seat. One end of the channel passes through the bottom of the rotating seat, and the other end of the channel passes through the side of the rotating seat and corresponds to the through hole. An annular first sealing piston is installed on the side of the rotating seat. The frontal projection of the through hole is located inside the first sealing piston, and the other side of the first sealing piston abuts against the inner wall of the second box.

[0011] Preferably, a second sealing piston is installed on both the upper and lower outer walls of the rotating seat.

[0012] Preferably, the second housing includes a shell with a top opening, a top cover connected to the top of the shell via a flange, a drive shaft rotatably connected to the top cover, and a fixing seat fixed to the top cover.

[0013] Preferably, a flow guide seat is provided at the top of the first box body, the flow guide seat is provided along the inner wall of the top of the first box body, and the bottom surface of the flow guide seat is an inclined surface.

[0014] Preferably, annular first connecting plates are installed on both the end of the first pipe away from the connecting pipe and the end of the second pipe away from the connecting pipe, and annular second connecting plates are coaxially installed on the outer walls of both the first and second pipes. Several spaced slots are provided along the edges of the first and second connecting plates, and a screw is placed in each slot. Locking nuts are provided on both sides of the slots, and the locking nuts are threaded onto the screws.

[0015] Preferably, each slot is provided to penetrate the outer wall of the corresponding first connecting plate and the outer wall of the second connecting plate.

[0016] The design scheme proposed in this utility model has the following beneficial effects in application:

[0017] 1. This utility model monitors the liquid flow rate in real time through a flow meter on the connecting pipe and achieves quantitative delivery in combination with a controller, ensuring accurate mixing ratio and avoiding the mixing effect affected by ratio deviation; at the same time, through the design of the connecting pipe diameter and the inclined slope structure of the guide seat, the liquid fills the pipe, reducing the measurement error of the flow meter.

[0018] 2. This utility model uses the rotation of the rotating seat inside the second box to adjust the misalignment and connection between the "L"-shaped channel and the through hole. This can completely seal the connection between the second box and the second pipe during transportation, thoroughly prevent backflow, and also quantitatively control the liquid transportation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is the front view of the present invention;

[0021] Figure 3 This is a schematic diagram of the internal structure of the second box of this utility model;

[0022] Figure 4 This is a schematic cross-sectional view of the rotating seat structure of this utility model;

[0023] Figure 5 This is a front view of the internal structure of the rotating seat of this utility model.

[0024] In the diagram: 1. First housing; 2. Connecting pipe; 3. Flow meter; 4. Second housing; 5. Top cover; 6. First pipe; 7. Second pipe; 8. Rotating seat; 9. Drive shaft; 10. Drive motor; 11. Support frame; 12. Fixed seat; 13. Bolt; 14. Second sealing piston; 15. Through hole; 16. First sealing piston; 17. Channel; 18. Flow guide seat; 19. Control box; 20. First connecting plate; 21. Second connecting plate; 22. Slot; 23. Screw; 24. Locking nut. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example

[0027] Reference Figures 1-5 A mixing injector quantitative check valve includes a first housing 1, a first pipe 6 connected to the side of the first housing 1, the first pipe 6 communicating with the first housing 1, the first pipe 6 being bent in an "S" shape and its other end being positioned above the first housing 1, and in actual use, liquid enters the first housing 1 from the first pipe 6.

[0028] like Figure 2 and Figure 5As shown, a second box 4 is provided above the first box 1. The second box 4 is connected to the first box 1 through a connecting pipe 2. The diameter of the connecting pipe 2 is less than half the length of the inner diameter of the first box 1. After the liquid enters the first box 1, it will move closer to the connecting pipe 2 as the liquid accumulates. Since the diameter of the connecting pipe 2 is smaller than that of the first box 1, the liquid is squeezed and converged when it comes into contact with the connecting pipe 2, so that the liquid can fill the entire connecting pipe 2. In order to improve the convergence effect of the liquid in the connecting pipe 2, a flow guide seat 18 is provided at the top of the first box 1. The flow guide seat 18 is provided along the inner wall of the top of the first box 1, and the bottom surface of the flow guide seat 18 is an inclined surface. Then, a flow meter 3 is provided on the connecting pipe 2. The flow meter 3 measures the liquid passing through the connecting pipe 2, thereby quantitatively controlling the addition of liquid into the mixing injector. The fullness of the liquid in the connecting pipe 2 also ensures that the flow meter 3 can accurately measure the liquid and reduce the occurrence of errors.

[0029] A second pipe 7 is installed on the side of the second box 4. A through hole 15 is opened on the side of the second box 4 near the second pipe 7 to connect the second box 4 and the second pipe 7. The second pipe 7 is S-shaped and the other end of the second pipe 7 is positioned below the second box 4. The liquid entering the connecting pipe 2 will flow into the second box 4 and then flow out from the second pipe 7. Since both the first pipe 6 and the second pipe 7 are S-shaped, in actual use, the end of the first pipe 6 away from the first box 1 and the end of the second pipe 7 away from the second box 4 are coaxially arranged. When backflow occurs, the liquid needs to pass through the bend of the second pipe 7, the box, and the bend of the first pipe 6 to prevent backflow.

[0030] The second box 4 includes a housing with an opening at the top, and a top cover 5 connected to the top of the housing via a flange, making the second box 4 detachable.

[0031] To improve the stopping effect, such as Figure 2 , Figure 3 and Figure 4 As shown, a rotating seat 8 is provided inside the second box 4. A drive shaft 9 is connected to the top of the rotating seat 8. The drive shaft 9 passes through the top of the second box 4 (i.e., the top cover 5) and is connected to a drive motor 10. The drive shaft 9 is rotatably connected to the second box 4 (i.e., the top cover 5). A support frame 11 is installed on the side of the drive motor 10. Several bolts 13 are arranged at intervals on the support frame 11. The ends of the bolts 13 are threaded to a fixed seat 12. The fixed seat 12 is fixedly installed along the top edge of the second box 4 (i.e., the top cover 5) to install and fix the drive motor 10. The drive motor 10 also provides power for the rotation of the drive shaft 9.

[0032] An "L"-shaped channel 17 is provided inside the rotating seat 8. One end of the channel 17 passes through the bottom of the rotating seat 8, and the other end of the channel 17 passes through the side of the rotating seat 8 and corresponds to the through hole 15. An annular first sealing piston 16 is installed on the side of the rotating seat 8. The frontal projection of the through hole 15 is located inside the first sealing piston 16, and the other side of the first sealing piston 16 abuts against the inner wall of the second box 4. When a quantitative liquid is transported, the drive motor 10 drives the rotating seat 8 to rotate, so that the side port of the channel 17 is rotated to the position opposite to the through hole 15. At this time, the second box 4 and the second pipe 7 are in a connected state, and the liquid can flow from the second box 4 into the second pipe 7. When the liquid is not transported, the drive motor 10 can rotate the side port of the channel 17 to the side away from the through hole 15, so that the second box 4 and the second pipe 7 are not in a connected state, so that the liquid in the second box 4 no longer flows into the second pipe 7. This not only controls the quantitative transport of liquid, but also effectively avoids backflow.

[0033] In order to prevent liquid from remaining on the top of the rotating seat 8 after entering the second box 4 and affecting subsequent use, a second sealing piston 14 is installed on the outer walls of both the upper and lower ends of the rotating seat 8.

[0034] Specifically, a control box 19 is installed on the outer wall of the second housing 4. The control box 19 contains a controller, which is connected to the flow meter 3 and the drive motor 10 via wires. In actual use, the controller can be one of a PLC logic controller, a control motherboard, or a control host. A wireless transceiver can also be installed in the control box 19. The wireless transceiver is connected to the controller via wires, so that it can transmit signals to the operator's mobile phone, laptop, or other terminals via one of the following signal transmission methods: 4G, 5G, WiFi, or Bluetooth. This allows the operator to control and monitor the check valve remotely.

[0035] It should be noted that, as Figure 1 and Figure 2As shown, annular first connecting plates 20 are installed on the end of the first pipe 6 away from the connecting pipe 2, and on the end of the second pipe 7 away from the connecting pipe 2. Annular second connecting plates 21 are coaxially installed on the outer walls of both the first pipe 6 and the second pipe 7. Several spaced slots 22 are formed along the edges of the first connecting plates 20 and the second connecting plates 21, penetrating the corresponding outer walls of the first and second connecting plates 20 and 21. A screw 23 is placed within each slot 22, and locking screws are provided on both sides of each slot 22. The female nut 24 and the locking nut 24 are threadedly connected to the screw 23. When installing the check valve, a connecting plate of the same specification and shape as the connecting plate is also set on the pipeline connected to the pipeline. After the connecting plate is placed on the corresponding connecting plate, the screw 23 can be taken out and placed in the slot. Then, the locking nut 24 is turned to press against the side of the connecting plate and the connecting plate to tighten the screw 23 and ensure the full connection between the pipeline. The setting of two connecting plates on each pipeline also relies on the screw 23 to reinforce the connection between the pipeline and the pipeline, ensuring that there is no bending or misalignment at the connection between the two.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A metering check valve for a mixing injector, characterized in that: Includes a first box body (1), and a first pipe (6) is connected to the side of the first box body (1). The first pipe (6) is connected to the first box body (1). The first pipe (6) is bent in an "S" shape and its other end is positioned above the first box body (1). A second box (4) is provided above the first box (1). The second box (4) is connected to the first box (1) through a connecting pipe (2). The diameter of the connecting pipe (2) is less than half the length of the inner diameter of the first box (1), and a flow meter (3) is provided on the connecting pipe (2). A second pipe (7) is installed on the side of the second box (4). The second pipe (7) is bent in an "S" shape, and the other end of the second pipe (7) is located below the second box (4).

2. The metering check valve for a mixing injector according to claim 1, characterized in that: A control box (19) is installed on the outer wall of the second box (4). A controller is installed inside the control box (19), and the controller is connected to the flow meter (3) through a wire.

3. A metering check valve for a mixing injector according to claim 2, characterized in that: A rotating seat (8) is provided inside the second box (4). A drive shaft (9) is connected to the top of the rotating seat (8). The drive shaft (9) passes through the top of the second box (4) and is connected to a drive motor (10). The drive shaft (9) is rotatably connected to the second box (4). The drive motor (10) is connected to the controller through a wire. A support frame (11) is installed on the side of the drive motor (10). Several bolts (13) are arranged at intervals on the support frame (11). The ends of the bolts (13) are threaded to the fixed seat (12). The fixed seat (12) is fixedly installed along the top edge of the second box (4). A through hole (15) is provided on the side of the second box (4) near the second pipe (7) to connect the second box (4) with the second pipe (7). An "L"-shaped channel (17) is provided in the rotating seat (8). One end of the channel (17) passes through the bottom of the rotating seat (8), and the other end of the channel (17) passes through the side of the rotating seat (8) and corresponds to the through hole (15). An annular first sealing piston (16) is installed on the side of the rotating seat (8). The frontal projection of the through hole (15) is located in the first sealing piston (16), and the other side of the first sealing piston (16) abuts against the inner wall of the second box (4).

4. A metering check valve for a mixing injector according to claim 3, characterized in that: A second sealing piston (14) is installed on both the upper and lower outer walls of the rotating seat (8).

5. A metering check valve for a mixing injector according to claim 3, characterized in that: The second box (4) includes a shell with a top opening, a top cover (5) connected to the top of the shell by a flange, a drive shaft (9) rotatably connected to the top cover (5), and a fixing seat (12) fixed on the top cover (5).

6. A metering check valve for a mixing injector according to claim 1, characterized in that: A flow guide seat (18) is provided at the top of the first box (1). The flow guide seat (18) is provided along the inner wall of the top of the first box (1), and the bottom surface of the flow guide seat (18) is an inclined slope.

7. A metering check valve for a mixing injector according to claim 1, characterized in that: An annular first connecting plate (20) is installed on the end of the first pipe (6) away from the connecting pipe (2) and on the end of the second pipe (7) away from the connecting pipe (2). An annular second connecting plate (21) is coaxially installed on the outer wall of the first pipe (6) and the outer wall of the second pipe (7). Several slots (22) are opened along the edge of the first connecting plate (20) and the edge of the second connecting plate (21). A screw (23) is placed in each slot (22). Locking nuts (24) are provided on both sides of the slot (22). The locking nuts (24) are threadedly connected to the screws (23).

8. A metering check valve for a mixing injector according to claim 7, characterized in that: Each slot (22) is provided through the outer wall of the corresponding first connecting plate (20) and the outer wall of the second connecting plate (21).

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