CNG (compressed natural gas) high-pressure pipeline filling device with leak-proof structure

Abstract

The utility model relates to the field of natural gas equipment production, and discloses a CNG high-pressure pipeline filling device with a leakproof structure, which comprises a machine body, two connecting blocks are fixedly connected to the rear side of the machine body, hoses are fixedly connected to the bottom ends of the two connecting blocks respectively, connecting rings are fixedly connected to the bottom ends of the hoses, and the connecting rings are fixedly connected to the bottom ends of the connecting blocks. A stabilizing block is fixedly connected to the right side of the connecting ring, a functional bin is fixedly connected to the right side of the stabilizing block, a circular adapter block is rotatably connected to the interior of the functional bin, and a plurality of stabilizing strips are slidably connected to the exterior of the circular adapter block. The leakage risk of the CNG high-pressure pipeline filling device in the using process is effectively treated, explosion accidents caused by leakage are effectively avoided, the possibility of potential disastrous consequences is reduced to the minimum by reducing the leakage risk, safety, stability and reliability of the whole CNG filling process are guaranteed, and the CNG high-pressure pipeline filling device is suitable for popularization and application. And wide application and sustainable development of CNG as clean energy are promoted.

Description

TECHNICAL FIELD

[0001] The utility model relates to natural gas equipment production field especially, it is CNG high pressure pipeline filling device with anti -leakage structure. BACKGROUND

[0002] CNG is the English abbreviation of compressed natural gas. CNG high pressure pipeline is a pipeline for transporting compressed natural gas, mainly used for transporting natural gas from the storage equipment of gas station to the gas dispenser, so as to fill the fuel for the vehicles such as CNG fuelled cars; also used for long distance transportation and distribution of natural gas, to ensure that natural gas can be stably supplied from gas source or storage facilities to various gas filling sites and other use places.

[0003] When CNG high pressure pipeline works, natural gas from gas source or storage facilities is compressed to a certain pressure under the action of compressor and then enters CNG high pressure pipeline. In the pipeline, natural gas flows under the driving of pressure difference. When refueling is needed, natural gas flows from the pipeline to the gas dispenser through valve control, and then the gas dispenser fills natural gas into the gas cylinder of the vehicle and other gas using equipment. In the whole process, the pressure monitoring device monitors the pipeline pressure in real time, the compensator adapts to the expansion and contraction of the pipeline, and the valve controls the flow direction and flow rate of natural gas according to the needs, to ensure the safe and stable operation of the pipeline system.

[0004] However, in the prior art, part of the CNG high pressure pipeline has the risk of leakage in use. CNG mainly contains methane, which will explode when it reaches a certain concentration in the air and meets a fire source. Natural gas leakage will cause direct emission of greenhouse gases such as methane into the atmosphere. The greenhouse effect of methane is much stronger than that of carbon dioxide, and a large amount of leakage will exacerbate global climate change. At the same time, once a leakage accident occurs, the gas station needs to stop operation for repair. This will cause the interruption of gas filling business and reduce the income of gas station. At the same time, it will face the loss of compensation to the affected units and individuals, including vehicle damage, building repair and other expenses, which will bring serious economic losses to the gas station. Therefore, the CNG high pressure pipeline filling device with anti-leakage structure is proposed to solve the above problems. SUMMARY

[0005] In order to make up for the above shortcomings, the utility model provides a CNG high pressure pipeline filling device with anti-leakage structure, aiming at improving the problem of leakage of CNG high pressure pipeline in use in the prior art.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: the CNG high pressure pipeline filling device with the anti -leakage structure, including the organism, the rear side fixed connection of organism has two connecting blocks, two The bottom of connecting block is fixedly connected with the hose respectively, the bottom fixedly connected with the connecting ring of hose, the right side fixed connection of connecting ring has the stabilizing block, the right side fixed connection of stabilizing block has the function storehouse, the inside rotation of function storehouse is connected with the circular adapter block, the outside of circular adapter block is connected with a plurality of stabilizing strips, the front side fixed connection of function storehouse has the output pipe, the rear side fixed connection of output pipe has the function ring, the inside fixed connection of function ring has a plurality of connecting columns, the outside of a plurality of connecting columns is equipped with the spring, the top fixedly connected with the sealing ring of spring, the inside front side fixed connection of function ring has the concave seal, the inside fixed connection of concave seal has the sealing strip, the inside top fixed connection of organism has the filter assembly for purifying.

[0007] As further description of the above technical solution: the filter assembly includes a fixed ring, the bottom of the fixed ring is fixedly connected to the inside top of the machine body, the front side of the fixed ring is rotatably connected with a control valve two, the rear end of the control valve two is fixedly connected with a valve, the inside of the fixed ring is fixedly connected with a housing, the inside bottom of the housing is fixedly connected with a filter bottom plate, the middle of the filter bottom plate is fixedly connected with a support column, the top of the filter bottom plate is fixedly connected with a plurality of filter columns one, the top of each of the plurality of filter columns one is fixedly connected with a filter column two, the top of the filter column two is fixedly connected with a shunt bin.

[0008] As further description of the above technical solution: the top of the function storehouse is fixedly connected with an exhaust pipe, the rear side of the function storehouse is rotatably connected with a control valve one.

[0009] As further description of the above technical solution: the far side of the plurality of stabilizing strips is fixedly connected to the inside of the function storehouse, the front side of the control valve one is fixedly connected to the rear side of the circular adapter block.

[0010] As further description of the above technical solution: the rear side of the output pipe is fixedly connected to the inside of the front side of the function storehouse, the rear side of the function ring is rotatably connected to the outside of the front side of the circular adapter block.

[0011] As further description of the above technical solution: the outside of the support column is fixedly connected to the inside of the filter column two, the outside of the filter column two is fixedly connected to the inside of the housing.

[0012] As further description of the above technical solution: the left and right sides of the machine body are respectively fixedly connected with electrostatic discs, the front side of the machine body is fixedly connected with a protective door.

[0013] As a further description of the above technical solutions: the outer part of the functional ring is fixedly connected to the inner part of the functional bin, and the bottom end of the exhaust pipe is slidably connected to the outer part of the circular adapter block.

[0014] The utility model has the advantages of the following:

[0015] 1. In the utility model, the hose 3 is driven by the machine body 1 through the connecting block 2 to the connecting ring 4, and then guided into the functional bin 6 by the stabilizing block 5, and the control valve one 15 drives the circular adapter block 12 to rotate in the functional bin 6, and the stabilizing strip 13 fixes the sliding stabilizing circular adapter block 12. Then the natural gas flows to the output pipe 16, and after entering the functional ring 7, the pressure generated by the rotation of the circular adapter block 12 drives the spring 8 to push the sealing ring 9 to tightly cooperate with the concave seal 10 and the sealing strip 11, thereby preventing leakage, so as to realize the sealing effect of gas flow and avoid the risk of leakage, and improve the safety during filling.

[0016] 2. In the utility model, the movable control valve two 18 is rotatably connected in the fixed ring, and then the valve 19 is opened, so that the natural gas enters the shell 24 in the fixed ring 17. In the shell 24, the natural gas is guided by the support column 21 and the filter bottom plate 20, and then passes through the filter column one 22 and the filter column two 23 in sequence, and in this process, the structure of the filter column one 22 and the filter column two 23 can filter the impurities in the natural gas, and finally the purified natural gas enters the shunt bin 25, so as to prevent the impurities from entering the filling device and the vehicle gas cylinder, avoid affecting the normal operation and service life of the vehicle engine, and even cause corrosion and other damage to the filling device. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic view of the CNG high-pressure pipeline filling device with the anti-leakage structure provided by the utility model;

[0018] Figure 2 It is a structure schematic view of the shunt bin of the CNG high-pressure pipeline filling device with the anti-leakage structure provided by the utility model;

[0019] Figure 3 It is Figure 2 the enlarged view of A in the middle;

[0020] Figure 4 It is Figure 2 the enlarged view of B in the middle.

[0021] LEGEND:

[0022] 1, body; 2, connecting block; 3, hose; 4, connecting ring; 5, stabilizing block; 6, function bin; 7, function ring; 8, spring; 9, sealing ring; 10, concave seal; 11, sealing strip; 12, round adapter block; 13, stabilizing strip; 14, exhaust pipe; 15, control valve one; 16, output pipe; 17, fixed ring; 18, control valve two; 19, valve; 20, filter bottom plate; 21, support column; 22, filter column one; 23, filter column two; 24, shell; 25, shunt bin; 26, static disc; 27, protective door. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0024] Reference Figures 1 to 3The utility model provides a kind of embodiment: the CNG high-pressure pipeline filling device with leakage-proof structure, including body 1, the rear side of body 1 is fixedly connected with two connecting blocks 2, the bottom end of two connecting blocks 2 is fixedly connected with hose 3 respectively, connecting block 2 is the important structural component that connecting body 1 and hose 3 are connected, it is firmly fixed in the rear side of body 1, by this fixed connection, ensure the stable transmission of natural gas from body 1 to hose 3, the bottom end of hose 3 is fixedly connected with connecting ring 4, it plays the role of transition and switching.In the transmission of natural gas from hose 3, by its firm fixed connection with hose 3, prevent gas from leaking at connecting place.Connecting ring 4's right side is fixedly connected with stabilizing block 5, stabilizing block 5 can provide additional stability for entire structure, reduce vibration and pressure impact generated by natural gas flow, prevent from being caused by equipment sway and lead to loose or damage, the right side of stabilizing block 5 is fixedly connected with function bin 6, when natural gas enters function bin 6, it can complete some functional conversion or adjustment operation in this relatively closed space.Rotatably connected with circular adapter block 12 in the inside of function bin 6, circular adapter block 12 is rotated under the driving of control valve one 15.Adjust and guide the flow of natural gas, a plurality of stabilizing strips 13 are slidably connected to the outside of circular adapter block 12, they work cooperatively, prevent circular adapter block 12 from deviating or unstable during rotation, ensure that the flow of natural gas is not affected by abnormal rotation of circular adapter block 12, the front side of function bin 6 is fixedly connected with output pipe 16, output pipe 16 provides a stable transmission path for natural gas, so that natural gas can continue to flow forward, the rear side of output pipe 16 is fixedly connected with function ring 7, prevent natural gas from leaking at connecting place.Its structure design makes natural gas can realize further adjustment and stabilization of pressure and flow in function ring 7, a plurality of connecting columns are fixedly connected in the inside of function ring 7, spring 8 is sheathed on the outside of a plurality of connecting columns, the top end of spring 8 is fixedly connected with sealing ring 9, recessed seal 10 is fixedly connected in the inside of the front side of function ring 7, sealing strip 11 is fixedly connected in the inside of recessed seal 10, when natural gas enters function ring 7, spring 8 will exert suitable pressure on sealing ring 9 according to the size of gas pressure, so that sealing ring 9 and recessed seal 10 are closely fitted.Sealing ring 9 can automatically adjust the degree of fitting with recessed seal 10 by the elastic effect of spring 8, good sealing effect can be guaranteed under different working pressures, prevent natural gas from leaking from function ring 7, the inside top end of body 1 is fixedly connected with filter assembly for purification.

[0025] Refer to Figures 2 to 4, the filter assembly includes a fixed ring 17, the bottom end of the fixed ring 17 is fixedly connected to the inner top end of the body 1, which firmly connects the filter assembly and the body 1 together, ensuring the stability of the position of the filter assembly in the body 1. The front side of the fixed ring 17 is rotatably connected with the control valve two 18, the rear end of the control valve two 18 is fixedly connected with the valve 19, and the natural gas can be controlled to enter the filter assembly by rotating. When the filtering operation is needed, the control valve two 18 can open the valve 19 by rotating, so that the natural gas can flow into the inside of the filter assembly. The inside of the fixed ring 17 is fixedly connected with the shell 24, the bottom end of the shell 24 is fixedly connected with the filter bottom plate 20, and the shell 24 is firmly fixed in the inside of the fixed ring 17 as a container for containing and protecting other filter structures. It provides a closed working space for the filter bottom plate 20, the filter column one 22, the filter column two 23 and other filter structures, the middle part of the filter bottom plate 20 is fixedly connected with the support column 21, which provides structural support for the filter column one 22 and the filter column two 23. When the natural gas flows through the filter bottom plate 20, the support column 21 can ensure that the filter column one 22 and the filter column two 23 remain stable during the filtering process, the top end of the filter bottom plate 20 is fixedly connected with a plurality of filter column one 22, and the top end of the plurality of filter column one 22 is fixedly connected with the filter column two 23. When the natural gas passes through the filter bottom plate 20, it will flow through the filter column one 22 and the filter column two 23. The filter column one 22 serves as a preliminary fine filtering component, which can adsorb and intercept some smaller impurities in the natural gas, while the filter column two 23 serves as a more fine filtering component, which further purifies the natural gas. The top end of the filter column two 23 is fixedly connected with the shunt bin 25. The natural gas filtered by the filter column two 23 is received. The shunt bin 25 can temporarily store and shunt the filtered natural gas, so that the natural gas can enter the subsequent pipeline or equipment more stably.

[0026] Referring to Figures 1 to 3The top end of the function bin 6 is fixedly connected with an exhaust pipe 14 to avoid safety hazards caused by gas accumulation and guide the gas to a safe discharge area when necessary. The rear side of the function bin 6 is rotatably connected with a control valve one 15. The control valve one 15 can be closed when necessary to prevent backflow or abnormal flow of gas. The far side of the plurality of stabilizing bars 13 is fixedly connected inside the function bin 6. The stabilizing bars 13 ensure the stability of rotation and prevent the circular adapter block 12 from shifting or shaking. The front side of the control valve one 15 is fixedly connected to the rear side of the circular adapter block 12. The control valve one 15 can accurately adjust the rotation of the circular adapter block 12 according to different working requirements. The rear side of the output pipe 16 is fixedly connected to the front side of the function bin 6. The output pipe 16 stably transports the processed natural gas in the function bin 6 to ensure the continuity and stability of gas transmission. The rear side of the function ring 7 is rotatably connected to the front side of the circular adapter block 12 to ensure smooth transmission and processing of natural gas between different structures and avoid gas leakage and abnormal flow caused by improper connection. The outer side of the support column 21 is fixedly connected to the inner side of the filter column two 23 to ensure that the natural gas can uniformly contact the filter material of the filter column two 23 when passing through the filter column two 23, thereby improving the filtering effect. The outer side of the filter column two 23 is fixedly connected to the inner side of the shell 24. The shell 24 provides a closed space for the filter column two 23 to better play its filtering role. The left and right sides of the machine body 1 are respectively fixedly connected with electrostatic discs 26. Static electricity may be generated due to friction and other reasons. The electrostatic discs 26 can guide these static electricity away to prevent safety hazards caused by static electricity accumulation. The front side of the machine body 1 is fixedly connected with a protective door 27 to protect the internal structure of the machine body 1. The protective door 27 can prevent external objects from entering the machine body 1 to avoid damaging the components inside the machine body 1. The outer side of the function ring 7 is fixedly connected to the inner side of the function bin 6 to ensure the sealing between the function ring 7 and the function bin 6, making the transmission of natural gas between them safer and more reliable. The bottom end of the exhaust pipe 14 is slidably connected to the outer side of the circular adapter block 12. The exhaust pipe 14 can be adjusted according to the state of the circular adapter block 12 when discharging gas to ensure smooth discharge of gas.

[0027] Working principle: CNG high pressure pipeline filling device in working, gas through the body 1 to the connecting block 2, connecting block 2 guide gas into the hose 3, when the gas into the hose 3, through the connecting ring 4 and stable block 5 connecting function warehouse 6, when the gas to stable block 5 through the rotary control valve 15 drive control valve 15 front end fixed connection of circular adapter block 12, the inside of circular adapter block 12 is provided with L type channel one end connecting stable block 5 one end connecting output pipe 16, output pipe 16 and stable block 5 are fixedly connected with function ring 7, the inside of function ring 7 is fixedly connected with spring 8, the top end of spring 8 is fixedly connected with sealing ring 9, when the circular adapter block 12 rotates, the pressure generated by spring 8 drive sealing ring 9 shrink makes it adhere to the circular adapter block 12 to avoid leakage, while the two function ring 7 far away one end of the front inside fixedly connected with concave seal 10 and sealing strip 11 adhere to the output pipe 16 and stable block 5 to avoid the leakage in the process of connection, the outside of circular adapter block 12 is slidably connected with multiple stable strip 13, which plays a stable and sealing effect, when the gas filling is completed, rotate control valve 15, the L shaped pipe port axis of circular adapter block 12 connected with output pipe 16 rotates, the L shaped pipe port of circular adapter block 12 connected with stable block 5 rotates to exhaust pipe 14, to exclude the excess gas, through the above structure realizes the sealing effect of gas in the flow process to avoid the risk of leakage.

[0028] When CNG high pressure pipeline delivery gas, when natural gas enters the body 1, first reaches the filter assembly. By rotating control valve 18, so that the valve 19 is opened, the natural gas can enter the shell 24 inside the fixed ring 17. And the top of the shell 24 is also connected with a fixed ring 17 and control valve 18 and valve 19, in the shell 24, natural gas from bottom to top, first through the filter bottom plate 20, filter bottom plate 20 for the preliminary filtration of large particle impurities, then the natural gas upward through a plurality of filter column 22 and filter column 23, these filter column by virtue of its special structure and material, adsorption and retention of small impurities in the natural gas, finally through the fully filtered natural gas into the shunt warehouse 25, realizes the effective filtration and purification of natural gas, provides clean gas source for subsequent use, at the same time, shell 24, and fixed ring 17, are provided with detachable structure, facilitate the subsequent replacement of filter column 22 and filter column 23.

[0029] Finally, it should be pointed out that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the protection scope of the present application.

Claims

1. A CNG high-pressure pipeline filling device with a leak-proof structure, comprising a body (1), characterized in that: Two connecting blocks (2) are fixedly connected to the rear side of the body (1). A flexible hose (3) is fixedly connected to the bottom end of each connecting block (2). A connecting ring (4) is fixedly connected to the bottom end of each flexible hose (3). A stabilizing block (5) is fixedly connected to the right side of the connecting ring (4). A functional compartment (6) is fixedly connected to the right side of the stabilizing block (5). A circular adapter block (12) is rotatably connected inside the functional compartment (6). Multiple stabilizing bars (13) are slidably connected to the outside of the circular adapter block (12). The functional compartment (6)... An output pipe (16) is fixedly connected to the front side, and a functional ring (7) is fixedly connected to the rear side of the output pipe (16). Multiple connecting posts are fixedly connected inside the functional ring (7), and springs (8) are sleeved on the outside of the multiple connecting posts. A sealing ring (9) is fixedly connected to the top of the spring (8). A concave seal (10) is fixedly connected to the front side of the inside of the functional ring (7), and a sealing strip (11) is fixedly connected inside the concave seal (10). A filter assembly for purification is fixedly connected to the top of the inside of the body (1).

2. The CNG high-pressure pipeline filling device with a leak-proof structure according to claim 1, characterized in that: The filter assembly includes a fixing ring (17), the bottom end of which is fixedly connected to the top of the inner part of the body (1). A control valve (18) is rotatably connected to the front side of the fixing ring (17). A valve (19) is fixedly connected to the rear end of the control valve (18). A housing (24) is fixedly connected inside the fixing ring (17). A filter base plate (20) is fixedly connected inside the bottom end of the housing (24). A support column (21) is fixedly connected to the middle part of the filter base plate (20). Multiple filter columns (22) are fixedly connected to the top of the filter base plate (20). Filter columns (23) are fixedly connected to the top of each of the multiple filter columns (22). A diversion chamber (25) is fixedly connected to the top of each filter column (23).

3. The CNG high-pressure pipeline refueling device with a leak-proof structure according to claim 1, characterized in that: An exhaust pipe (14) is fixedly connected to the top of the functional compartment (6), and a control valve (15) is rotatably connected to the rear side of the functional compartment (6).

4. The CNG high-pressure pipeline refueling device with a leak-proof structure according to claim 3, characterized in that: The opposite sides of the plurality of stabilizing bars (13) are fixedly connected to the interior of the functional compartment (6), and the front side of the control valve (15) is fixedly connected to the rear side of the circular adapter block (12).

5. The CNG high-pressure pipeline filling device with a leak-proof structure according to claim 1, characterized in that: The rear side of the output tube (16) is fixedly connected to the front side of the functional compartment (6), and the rear side of the functional ring (7) is rotatably connected to the front side of the circular adapter block (12).

6. The CNG high-pressure pipeline refueling device with a leak-proof structure according to claim 2, characterized in that: The external support column (21) is fixedly connected to the inside of the filter column two (23), and the external filter column two (23) is fixedly connected to the inside of the housing (24).

7. The CNG high-pressure pipeline filling device with a leak-proof structure according to claim 1, characterized in that: The left and right sides of the machine body (1) are respectively fixedly connected to electrostatic disks (26), and the front side of the machine body (1) is fixedly connected to a protective door (27).

8. The CNG high-pressure pipeline filling device with a leak-proof structure according to claim 3, characterized in that: The external of the functional ring (7) is fixedly connected to the inside of the functional compartment (6), and the bottom end of the exhaust pipe (14) is slidably connected to the outside of the circular adapter block (12).

Images