Quantitative filling device of liquid carbon dioxide tank car

Abstract

The utility model relates to the field of liquid carbon dioxide tank trucks, and discloses a quantitative filling device of a liquid carbon dioxide tank truck, which comprises a base and a storage tank, the storage tank is positioned in a tank carriage, the base is positioned on one side of the storage tank, a recovery tank is arranged at the bottom of the base, and a pump set is mounted at the top end of the base. The input end of the storage box is connected with a liquid adding pipe, a connector is installed at the output end of the storage box, the storage box is connected to the pump set through the connector, and a metering valve is installed at the input end of the pump set. According to the quantitative filling device of the liquid carbon dioxide tank car, the pump set is arranged, the efficient recovery function of quantitative filling of liquid carbon dioxide is achieved, residual liquid carbon dioxide in a pipeline is rapidly guided into the recovery tank through the residual discharging pipe to be recovered, and waste or leakage caused by the fact that the liquid carbon dioxide is left in the pipeline is avoided; the utilization rate of liquid carbon dioxide is effectively improved, and the problem that residual liquid in a pipeline is wasted after quantitative filling in a tank car filling device is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid carbon dioxide tank truck technical field, concretely is a kind of liquid carbon dioxide tank truck's quantitative filling device. BACKGROUND

[0002] Liquid carbon dioxide tank truck is usually composed of storage tank, pipeline control system, filling device and safety valve, and its core function is to realize the safe and efficient transportation and accurate filling of liquid carbon dioxide.Currently, after reaching the predetermined injection amount, the existing liquid carbon dioxide tank truck on the market only stops filling by closing the pump set, and the residual liquid carbon dioxide in the pipeline cannot be discharged or recovered in time.

[0003] These residual liquids may cause waste due to natural gasification on the one hand, and may also cause unstable pipeline pressure, increasing the risk of leakage. At the same time, the unrecycled residual liquids may also cause repeated cleaning needs of the pipeline, increasing the operation complexity and maintenance cost. The current solution mostly uses manual discharge of residual liquids, which not only has low efficiency, but also has the risk of environmental pollution. Therefore, there is an urgent need for a quantitative filling device for liquid carbon dioxide tank truck to solve the above technical defects. SUMMARY

[0004] The utility model aims at providing a quantitative filling device for liquid carbon dioxide tank truck to solve the problem of waste of residual liquid in the pipeline after quantitative filling in the tank truck filling device as mentioned in the background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a quantitative filling device for liquid carbon dioxide tank truck, comprising a base and a storage tank, the storage tank is located in the tank car, the base is located on one side of the storage tank, the base bottom is provided with a recovery tank, the base top end is installed with a pump set, the storage tank input end is connected with a liquid adding pipe, the storage tank output end is installed with a connector, the storage tank is connected to the pump set through the connector, the pump set input end is installed with a metering valve, the pump set output end is installed with a three-way valve, the three-way valve and the recovery tank are installed with a residual pipe, the three-way valve input end is installed with a front flowmeter, the three-way valve output end is installed with a rear flowmeter, the residual pipe output end is installed with a solenoid valve, the three-way valve output end is connected to the storage tank, the storage tank output end is installed with a flowmeter, the front end of the storage tank is installed with a controller.

[0006] As a further technical scheme of the utility model, the pipes at the storage tank, pump set and storage tank are all sealed hoses.

[0007] As a further technical scheme of the utility model, the right side of the base top end is fixedly connected with a fixed disc, the inside of the fixed disc is movably assembled with a turret, and the middle position of the turret is fixedly connected with a handle.

[0008] As a further technical scheme of the utility model, a plurality of lock holes are distributed annularly in the fixed disc, and a latch is inserted into the lock hole.

[0009] As a further technical scheme of the utility model, the three-way valve and the connecting pipeline at the storage tank are wound in the rotating frame.

[0010] As a further technical scheme of the utility model, bottom frames are welded to both sides of the bottom end of the machine base, and the recovery tank is placed on the bottom frames.

[0011] As a further technical scheme of the utility model, supporting legs are slidingly connected to both sides of the bottom frame, one group of air cylinders is fixed to the bottom end of each supporting leg, and the piston rod of the air cylinder is fixedly connected to the bottom frame.

[0012] As a further technical scheme of the utility model, the height of the machine base is matched with the connecting head and the inlet of the storage tank.

[0013] Compared with the prior art, the liquid carbon dioxide tank truck quantitative filling device has the advantages that the quantitative filling device not only realizes efficient recovery of residual liquid in the pipeline, realizes adjustment of the pipeline, and guarantees the stability of the pipeline, but also realizes convenient operation and rapid and simple docking.

[0014] (1) The pump group, the three-way valve, the residual pipe, the electromagnetic valve and the recovery tank are arranged, the efficient recovery function of the liquid carbon dioxide quantitative filling is realized, the residual liquid carbon dioxide in the pipeline is rapidly introduced into the recovery tank through the residual pipe for recovery, waste or leakage of the liquid carbon dioxide caused by residual liquid carbon dioxide in the pipeline is avoided, the use rate of the liquid carbon dioxide is effectively improved, and the problem of inaccurate quantitative control and waste of residual liquid in the existing tank truck filling device is solved.

[0015] (2) The machine base, the rotating frame, the rotating handle and the latch are arranged, the problems of dragging and abrasion caused by excessively long pipeline or excessive stress on the interface caused by excessively short pipeline are avoided, the requirement of the driver on parking accuracy is reduced, and the stability of the pipeline and the safety of filling are guaranteed.

[0016] (3) The machine base, the air cylinder and the bottom frame are arranged, the adjustable machine base enables the interface of the recovery tank and the storage tank or the tank truck to be docked at the optimal position, after filling is completed, the air cylinder is retracted to adjust the initial height so as to facilitate movement and storage, the interface height of the recovery tank is adapted to different models of liquid carbon dioxide tank trucks and storage tanks, and the problems of high operation limitation and narrow application range of the existing filling device are solved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a front view structural schematic diagram of the utility model;

[0018] Figure 2The utility model discloses a recycling tank front view structure schematic diagram.

[0019] Figure 3 The utility model discloses a rotary table front view structure schematic diagram.

[0020] Figure 4 The utility model discloses a machine base front view structure schematic diagram.

[0021] In the drawing: 1, tank; 2, liquid adding pipe; 3, connecting head; 4, metering valve; 5, pump group; 6, front flowmeter; 7, rear flowmeter; 8, three-way valve; 9, residual pipe; 10, electromagnetic valve; 11, recycling tank; 12, machine base; 13, rotary table; 14, storage tank; 15, flowmeter; 16, fixed disc; 17, lock hole; 18, rotary handle; 19, bolt; 20, supporting leg; 21, air cylinder; 22, underframe; 23, controller. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative work belong to the scope of the utility model protection.

[0023] Please refer to Figures 1-4 The utility model provides a kind of quantitative filling device of liquid carbon dioxide tank truck, including machine base 12 and tank 1, tank 1 is located in tank car compartment, machine base 12 is located in the side of tank 1, recycling tank 11 is provided in the bottom of machine base 12, pump group 5 is installed at the top of machine base 12, the input end of tank 1 is connected with liquid adding pipe 2, the output end of tank 1 is installed with connecting head 3, tank 1 is connected to pump group 5 by connecting head 3, metering valve 4 is installed at the input end of pump group 5, three-way valve 8 is installed at the output end of pump group 5, residual pipe 9 is installed between three-way valve 8 and recycling tank 11, front flowmeter 6 is installed at the input end of three-way valve 8, rear flowmeter 7 is installed at the output end of three-way valve 8, electromagnetic valve 10 is installed at the output end of residual pipe 9, the output end of three-way valve 8 is connected to storage tank 14, flowmeter 15 is installed at the output end of storage tank 14, each pipeline at tank 1, pump group 5 and storage tank 14 is sealed hose, controller 23 is installed at the front end of tank 1;

[0024] Specifically, as Figure 1 , Figure 2 And Figure 4As shown, the liquid carbon dioxide is pumped from the tank 1 to the storage tank 14 through the pump set 5, and the flow direction is controlled by the three-way valve 8. The injection amount is detected by the flow meter 15 in real time. When the flow meter 15 detects that the liquid injection amount reaches a predetermined threshold, the control system sends a signal to the pump set 5 to stop pumping, and at the same time, the three-way valve 8 switches to close the pipeline to the storage tank 14 and opens the pipeline to the exhaust pipe 9. The electromagnetic valve 10 is synchronously opened, and the residual liquid carbon dioxide in the pipeline is quickly guided into the recovery tank 11 through the exhaust pipe 9 for recovery, avoiding waste or leakage caused by residual liquid carbon dioxide in the pipeline. The flow meter 15 is electrically connected to the controller 23, the controller 23 is electrically connected to the electromagnetic valve 10, the controller 23 is electrically connected to the pump set 5, the controller 23 is electrically connected to the flow meter 7, and the controller 23 is electrically connected to the metering valve 4. The above control relationship belongs to a conventional technical means, and this part of the control relationship is not the improvement point of the present application.

[0025] The fixed disc 16 is fixedly connected to the right top end of the base 12, and the rotating frame 13 is movably assembled in the fixed disc 16. The rotating handle 18 is fixedly connected to the middle position of the rotating frame 13. The fixed disc 16 is annularly distributed with a plurality of lock holes 17. The bolt 19 is inserted into the lock hole 17. The three-way valve 8 and the storage tank 14 are connected by the pipeline wound in the rotating frame 13.

[0026] Specifically, as shown in Figure 1 and Figure 3 , the liquid carbon dioxide from the pipeline connected to the three-way valve 8 passes through the rotating frame 13 and is wound to the storage tank 14. When the parking distance between the liquid carbon dioxide tank truck and the storage tank 14 is indefinite, the operator can pull out the bolt 19, adjust the winding state of the rotating frame 13 by rotating the rotating handle 18, and then insert the bolt 19 into the lock hole 17 after winding to the appropriate length to lock it, preventing the rotating frame 13 from rotating during use.

[0027] The bottom frame 22 is welded to the bottom end of the base 12, and the recovery tank 11 is placed on the bottom frame 22. The bottom frame 22 is slidably connected to the support leg 20 on both sides. Each group of gas cylinders 21 is fixed to the bottom end of the support leg 20. The piston rod of the gas cylinder 21 is fixedly connected to the bottom frame 22. The height of the base 12 is matched with the connection head 3 and the inlet of the storage tank 14.

[0028] Specifically, as shown in Figure 1 and Figure 4 , the piston rod of the gas cylinder 21 pushes the bottom frame 22 upwards, thereby adjusting the height of the base 12, so that the interface of the recovery tank 11 and the storage tank 14 or the tank truck is connected at the best position. After filling is completed, the gas cylinder 21 can be adjusted to the initial height to facilitate movement and storage.

[0029] Working principle: the piston rod of the cylinder 21 pushes the chassis 22 upwards, thereby adjusting the height of the machine base 12, so that the interface of the recovery tank 11 and the storage tank 14 or the tank truck is docked in the optimal position. When the parking distance between the liquid carbon dioxide tank truck and the storage tank 14 is indefinite, the operator can pull out the plug 19, adjust the winding state of the rotating frame 13 by rotating the handle 18, and then insert the plug 19 into the lock hole 17 to lock it after unwinding to the appropriate length. During use, the rotating frame 13 is prevented from rotating, and the pipeline is connected with the connector 3, and the other end is connected with the storage tank 14. The liquid carbon dioxide is pumped from the storage tank 1 to the storage tank 14 through the pump set 5, and is controlled to flow through the three-way valve 8. The injection amount is detected in real time by the flow meter 15. When the flow meter 15 detects that the liquid injection amount reaches the predetermined threshold value, the control system sends a signal to the pump set 5 to stop pumping operation, and at the same time, the three-way valve 8 switches to close the pipeline to the storage tank 14, and opens the pipeline to the exhaust pipe 9. The electromagnetic valve 10 is synchronously opened, and the residual liquid carbon dioxide in the pipeline is quickly introduced into the recovery tank 11 for recovery through the exhaust pipe 9, so as to avoid waste or leakage of the residual liquid carbon dioxide in the pipeline.

[0030] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A liquid carbon dioxide tanker with a metering filling device, comprising a base (12) and a tank (1), characterized in that: The tank (1) is located in the tank car compartment, the base (12) is located on one side of the tank (1), the bottom of the base (12) is provided with a recovery tank (11), the top of the base (12) is provided with a pump group (5), the input end of the tank (1) is connected with a liquid adding pipe (2), the output end of the tank (1) is provided with a connector (3), the tank (1) is connected to the pump group (5) through the connector (3), the input end of the pump group (5) is provided with a metering valve (4), the output end of the pump group (5) is provided with a three-way valve (8), the three-way valve (8) and the recovery tank (11) are provided with a residual pipe (9), the input end of the three-way valve (8) is provided with a front flow meter (6), the output end of the three-way valve (8) is provided with a rear flow meter (7), the output end of the residual pipe (9) is provided with a solenoid valve (10), the output end of the three-way valve (8) is connected to a storage tank (14), the output end of the storage tank (14) is provided with a flow meter (15), and the front end of the tank (1) is provided with a controller (23).

2. A liquid carbon dioxide tank vehicle dispensing apparatus as defined in claim 1 wherein: The pipelines at the tank (1), the pump group (5) and the storage tank (14) are all sealed hoses.

3. A liquid carbon dioxide tank vehicle dispensing apparatus as defined in claim 1 wherein: The top right side of the base (12) is fixedly connected with a fixed disc (16), and the inside of the fixed disc (16) is movably assembled with a rotating frame (13), and the middle position of the rotating frame (13) is fixedly connected with a rotating handle (18).

4. A liquid carbon dioxide tank vehicle dispensing apparatus as defined in claim 3 wherein: A plurality of lock holes (17) are annularly distributed in the fixed disc (16), and the rotating handle (18) is inserted with a bolt (19) penetrating the lock hole (17).

5. A liquid carbon dioxide tank vehicle dispensing apparatus as defined in claim 1 wherein: The connecting pipelines of the three-way valve (8) and the storage tank (14) are wound in the rotating frame (13).

6. A metering device for a liquid carbon dioxide tanker as defined in claim 1, characterized in that: The bottom of the base (12) is welded with a chassis (22) on both sides, and the recovery tank (11) is placed on the chassis (22).

7. A metering device for a liquid carbon dioxide tank truck as defined in claim 6, characterized in that: The two sides of the chassis (22) are respectively slidably connected with a supporting leg (20), and each group of the supporting leg (20) is fixed with a cylinder (21) at the bottom, and the piston rod of the cylinder (21) is fixedly connected with the chassis (22).

8. A metering device for a liquid carbon dioxide tanker as defined in claim 6, characterized in that: The height of the base (12) is matched with the connector (3) and the inlet of the storage tank (14).

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