CN217082197U - Mobile liquid oxygen filling sledge - Google Patents
Mobile liquid oxygen filling sledge Download PDFInfo
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- CN217082197U CN217082197U CN202122740141.5U CN202122740141U CN217082197U CN 217082197 U CN217082197 U CN 217082197U CN 202122740141 U CN202122740141 U CN 202122740141U CN 217082197 U CN217082197 U CN 217082197U
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Abstract
The utility model belongs to the technical field of liquid oxygen fuel filling technique and specifically relates to a remove liquid oxygen and annotate sledge, including 20 feet container formula chassis. The mobile liquid oxygen filling sledge of the utility model replaces the on-site storage tank and the filling pump with the leased liquid oxygen tank vehicle with the pump, and replaces the on-site filling pipeline with the vehicle-mounted quantitative filling sledge, thereby greatly reducing the on-site construction cost; the filling sledge is internally provided with valve instrument components such as a flow regulating valve, an emergency cut-off valve, a mass flowmeter, a temperature/pressure transmitter and the like, and can safely and quantitatively complete a filling task; the quantitative filling skid chassis is designed according to the installation form of a 20-foot container, can be conveniently installed on a container trailer, and has good maneuverability of a pump truck and a quantitative filling truck, thereby saving a launching site and facilitating transition; the pump truck can be directly filled, so that the transfer filling process is omitted, and liquid oxygen is saved; compared with open-air arrangement, the vehicle-mounted filling sledge has the advantages of good storage condition, easy maintenance, longer service life and good protection effect.
Description
Technical Field
The utility model belongs to the technical field of liquid oxygen fuel filling technique and specifically relates to a remove liquid oxygen and annotate sledge.
Background
Liquid oxygen, liquid hydrogen or liquid oxygen and kerosene are the preferred fuel combination of the new generation carrier rocket.
The current domestic common rocket liquid oxygen filling scheme is as follows: and constructing a liquid oxygen/liquid nitrogen storage tank meeting the maximum filling amount requirement in a launching field, and simultaneously configuring an instrument valve pipeline system and a heat exchanger required by filling each stage. Before filling, the liquid oxygen storage tank is filled to a specified liquid level through a tank car, the pump is started at a specified time before launching, and the rocket body liquid oxygen filling task is completed according to four steps of precooling, large-flow filling, parking and supercooling supplement before launching.
The filling mode is mature and reliable, has enough filling experience, but has large early investment and high launching cost, and is suitable for government departments/military parties with relaxed requirements on the cost. However, in recent years, the commercial aerospace is rapidly developed, and the traditional liquid oxygen filling mode cannot meet the requirement of commercial emission on cost reduction.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: in order to solve the problems existing in the background technology, an improved mobile liquid oxygen filling sledge is provided, and the problems of large early investment and high emission cost of the traditional liquid oxygen filling equipment are solved.
The utility model provides a technical scheme that its technical problem adopted is: a movable liquid oxygen filling sledge comprises a 20-foot container type chassis, a liquid inlet cut-off ball valve, a supercooling bypass hand valve, a temperature transmitter, a flow regulating valve, a safety valve, a mass flow meter, a high-pressure nitrogen bottle group, a liquid outlet cut-off ball valve, a supporting pipe bracket, an explosion-proof junction box and an electrostatic grounding wire reel, wherein the upper surface of the 20-foot container type chassis is fixedly connected with two transverse liquid outlet pipes through the supporting pipe bracket, the upper surface of the 20-foot container type chassis is provided with transverse branch conveying pipes at the positions of liquid inlets of the transverse liquid outlet pipes, the transverse liquid outlet pipes and the transverse branch conveying pipes are fixedly communicated with the ball valve through the liquid outlet cut-off ball valve, one sides of the transverse branch conveying pipes are fixedly communicated with a main liquid inlet conveying pipe through the flow regulating valve and the supercooling bypass hand valve, and the outer side surface of the main liquid inlet conveying pipe is fixedly welded with a lateral liquid inlet pipe used for connecting the liquid inlet cut-off ball valve, the liquid inlet cut-off ball valve outside liquid inlet is fixed with an outside liquid inlet connecting pipe through a side flange bolt.
The upper end of the transverse liquid outlet pipe and the upper end of the main liquid inlet conveying pipe are provided with a temperature transmitter which is used for being installed and communicated.
The upper surface of the 20-foot container type chassis is fixed with a longitudinal assembly frame for installing an explosion-proof junction box by bolts at the outer side of the transverse branch conveying pipe, the front end of the longitudinal assembly frame is provided with a lateral assembly chute with an opening at the upper end, the back of the explosion-proof junction box is fixed with a longitudinal assembly sliding block by a bolt, the explosion-proof junction box is inserted into the lateral assembly sliding groove through the longitudinal assembly sliding block and is connected with the longitudinal assembly frame in a sliding manner, the inner side surface of the lateral assembling chute is provided with an integral structure limiting plate which is bent forwards and is positioned above and below the longitudinal assembling slide block, an internal thread adjusting through hole with a built-in thread adjusting rod is arranged in the longitudinal assembling slide block, two ends of the thread adjusting rod penetrate through the inside of the limiting plate and are movably connected with the limiting plate, the top ends of the two sides of the threaded adjusting rod are positioned on one side of the limiting plate, and the limiting adjusting blocks with an integral structure are coaxially fixed.
And an extrusion spring is movably sleeved between the longitudinal assembling slide block and the limiting plate on the outer side of the thread adjusting rod.
And the upper surface of the 20-foot container type chassis is fixedly provided with a mounting and adjusting device for mounting a high-pressure nitrogen bottle group at one side of the longitudinal assembly frame through bolts.
The installation adjusting device comprises a U-shaped structure bottom assembly frame fixed on the upper surface of the 20-foot container type chassis through bolts, an internal overturning frame connected to the inner side of the bottom assembly frame in a sliding mode through a lateral rotating shaft, and arc-shaped fixing frames fixedly installed on the outer walls of the two sides of the internal overturning frame through bolts.
And a bottom mounting bracket for mounting the electrostatic grounding wire spool is fixed on the upper surface of the 20-foot container type chassis through bolts.
The upper surface of the 20-foot container type chassis is fixedly connected with a bottom support frame which is convenient to mount and fix and is positioned at the lower end of the outside liquid inlet connecting pipe.
The mass flowmeter is fixedly communicated with the transverse branch conveying pipe.
The utility model has the advantages that:
(1) the mobile liquid oxygen filling sledge of the utility model replaces the on-site storage tank and the filling pump with the leased liquid oxygen tank vehicle with the pump, and replaces the on-site filling pipeline with the vehicle-mounted quantitative filling sledge, thereby greatly reducing the on-site construction cost;
(2) the filling sledge is internally provided with valve instrument components such as a flow regulating valve, an emergency cut-off valve, a mass flowmeter, a temperature/pressure transmitter and the like, and can safely and quantitatively complete a filling task;
(3) the quantitative filling skid chassis is designed according to the installation form of a 20-foot container, can be conveniently installed on a container trailer, and has good maneuverability of a pump truck and a quantitative filling truck, thereby saving a launching site and facilitating transition;
(4) the pump truck can be directly filled, so that the transfer filling process is omitted, and liquid oxygen is saved;
(5) compared with open-air arrangement, the vehicle-mounted filling sledge has the advantages of good storage condition, easiness in maintenance and longer service life, and meanwhile, the filling sledge is provided with the liquid oxygen driving type side plate which is only opened when in use, so that the protection effect is good.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a plan view of the present invention.
Fig. 3 is an internal sectional view of the assembling end of the longitudinal assembling frame of the present invention.
Fig. 4 is a schematic structural diagram of the middle installation adjusting device of the present invention.
Fig. 5 is a process flow diagram of the medium dosing sledge valve instrument of the present invention.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
The mobile liquid oxygen filling sledge shown in fig. 1, fig. 2 and fig. 3 comprises a 20-foot container type chassis 1, a liquid inlet cut-off ball valve 2, a supercooling bypass hand valve 3, a temperature transmitter 4, a flow regulating valve 5, a safety valve 6, a mass flow meter 7, a high-pressure nitrogen cylinder group 8, a liquid outlet cut-off ball valve 9, a support pipe bracket 10, an explosion-proof junction box 11 and an electrostatic grounding wire reel 122, wherein the upper surface of the 20-foot container type chassis 1 is fixedly connected with two horizontal liquid outlet pipes 12 through the support pipe bracket 10, a plurality of horizontal liquid outlet pipes 12 can be arranged according to actual needs, wherein the support pipe bracket 10 can be a pipe bracket or a pipe clamp, the upper surface of the 20-foot container type chassis 1 is provided with a horizontal branch liquid inlet delivery pipe 13 at the position of the horizontal liquid outlet pipe 12, the horizontal liquid outlet pipe 12 is fixedly communicated with the horizontal delivery pipe 13 through a liquid outlet cut-off ball valve branch 9, the safety valve 6 is fixedly communicated with the inner side outer wall of the transverse branch conveying pipe 13 through a lateral assembling pipe, one side of the transverse branch conveying pipe 13 is fixedly communicated with a main liquid inlet conveying pipe 14 through a flow regulating valve 5 and a supercooling bypass hand valve 3, and six inlets on the vehicle head side are liquid inlets for feeding liquid from a tank car. The quantity is indefinite, can five feed liquors also can seven, and welded fastening has the side direction feed liquor pipe 15 that is used for connecting the inlet and cuts off ball valve 2 on the 14 lateral surfaces of main feed liquor conveyer pipe, and the inlet cuts off 2 outside inlets of ball valve and has outside feed liquor connecting pipe 16 through side direction flange bolt fastening.
The upper end of the transverse liquid outlet pipe 12 and the upper end of the main liquid inlet conveying pipe 14 are respectively provided with a temperature transmitter 4 for installation and communication.
A longitudinal assembly frame 17 for installing an explosion-proof junction box 11 is fixed on the upper surface of the 20-foot container type chassis 1 at the outer side of a transverse branch conveying pipe 13 through bolts, a transverse liquid outlet pipe 12 and the transverse branch conveying pipe 13 are both a round thing and are liquid outlet pipes, the fire observation arrows are divided into several stages, the liquid outlet pipes can be two or more, a lateral assembly sliding groove 18 with an upper end opening is formed in the front end of the longitudinal assembly frame 17, a longitudinal assembly sliding block 19 is fixed on the back surface of the explosion-proof junction box 11 through bolts, the explosion-proof junction box 11 is inserted into the lateral assembly sliding groove 18 through the longitudinal assembly sliding block 19 and is in sliding connection with the longitudinal assembly frame 17, an integral structure limiting plate 20 which is bent forwards is arranged on the inner side surface and below the longitudinal assembly sliding block 19, an internal thread adjusting through hole with a built-in thread adjusting rod 21 is formed in the longitudinal assembly sliding block 19, two ends of the thread adjusting rod 21 penetrate through the limiting plate 20 and are movably connected with the limiting plate 20, the top ends of the two sides of the threaded adjusting rod 21 are coaxially fixed with an integral limiting adjusting block 22 at one side of the limiting plate 20.
An extrusion spring 23 is movably sleeved between the longitudinal assembling slide block 19 and the limiting plate 20 at the outer side of the thread adjusting rod 21.
And a mounting and adjusting device for mounting the high-pressure nitrogen bottle group 8 is fixed on the upper surface of the 20-foot container type chassis 1 at one side of the longitudinal assembling frame 24 through bolts.
The installation adjusting device comprises a U-shaped structure bottom assembly frame 25 fixed on the upper surface of the 20-foot container type chassis 1 through bolts, an inner overturning frame 26 connected to the inner side of the bottom assembly frame 25 in a sliding mode through a lateral rotating shaft, and arc-shaped fixing frames 27 fixedly installed on the outer walls of the two sides of the inner overturning frame 26 through bolts.
The bottom mounting bracket 28 for mounting the electrostatic grounding spool 122 is bolted to the upper surface of the 20-foot container chassis 1.
The lower end of the outer liquid inlet connecting pipe 16 on the upper surface of the 20-foot container type chassis 1 is fixedly connected with a bottom support frame 29 which is convenient to install and fix.
The mass flowmeter 7 is fixedly communicated with the transverse branch conveying pipe 13.
The operation flow is as follows:
1) the filling sledge is grounded, the liquid oxygen tank car is grounded (an electrostatic grounding clamp), and the tank car and the rocket end quick connector are connected.
2) And (5) purging the pipeline. And opening an exhaust valve at the tail end of the liquid taking hose of the tank car, connecting a nitrogen purging pipeline at the rocket end, and then blowing for at least 1min after purging nitrogen is discharged from the liquid taking hose end to complete purging.
3) And opening the pneumatic stop valves on the main pipeline and the two filling branches, and opening the exhaust valve on the rocket storage tank. Adjusting the opening of the valve to 10%, starting pipeline precooling, monitoring the pressure of the liquid oxygen storage tank, wherein the pressure does not exceed 0.1MPa, and when the liquid oxygen storage tank is filled to 5% of the liquid level, ending a precooling process.
4) And (3) starting large-flow filling when the opening of the regulating valve is more than 80%, wherein the filling flow is not less than 1000L/min, finishing large-flow filling after the filling reaches 80% of the liquid level, and monitoring the pressure of the liquid oxygen storage tank in the whole process to be not more than 0.1 MPa.
5) And stopping the liquid taking pump of the liquid oxygen tank car for standby, keeping an exhaust valve of the liquid oxygen storage tank open, and performing circulating precooling on the engine for 2-3 hours.
6) And (4) adding supercooled liquid nitrogen. The main pipeline trip valve is closed, the supercooling pipeline bypass hand valve is opened manually, liquid nitrogen is connected into the cryogenic heat exchanger, the liquid taking pump of the tank car is started, last supercooling filling is carried out, and the filling flow is 200-300L/min. After the liquid oxygen is filled to the specified liquid level, the temperature of the liquid oxygen in the storage tank is not higher than 91K.
7) The line is emptied. The liquid taking pump of the liquid oxygen/liquid nitrogen tank car is stopped, and the inlet valve at the tank car end is closed. The liquid oxygen main pipeline discharge valve is automatically opened, the tank car liquid taking hose tail end emptying valve is opened, the rocket end nitrogen purging bypass is connected with a nitrogen source, and purging is started. When the temperature of the liquid phase main pipeline is higher than minus 50 ℃ and the pressure is less than 0.05Mpa, the tank car and the rocket end are manually disassembled to connect the quick connector, and the main pipeline discharge valve is automatically closed.
As shown in fig. 5, the flow control valve 5 and the mass flow meter 7 are interlocked to control the opening of the flow control valve 5 according to the real-time filling amount, thereby realizing reliable control of the whole flow of small flow → large flow → small flow filling.
The flow control valves 5 are respectively arranged in front and at the back in a group, the temperature and the pressure of the liquid phase pipeline are monitored in real time, the linkage with the stop valve can be set, and when the pressure/the temperature of the pipeline are overhigh, the stop valve is closed, and the filling is stopped.
A pneumatic cut-off valve is configured, and the pneumatic cut-off valve is used as a main pipeline switch valve in a normal working process; and the second is used for emergency cut-off, when the system monitors abnormality (such as loosening of a grounding clamp, temperature overrun, pressure overrun and the like), the cut-off valve is automatically cut off, and the site safety is ensured.
The thermal expansion safety valve is arranged, when the pressure of a medium in the pipeline is increased due to temperature rise, the safety valve automatically releases pressure, and the safety of the system is guaranteed. And arranging an automatic evacuation valve of the main pipeline, and automatically opening the valve to evacuate the liquid oxygen medium after filling is finished.
A liquid nitrogen supercooling pipeline interface is reserved in the sledge. The liquid nitrogen pipeline is used for supercooling liquid oxygen injected in the later process so as to ensure that the temperature of the liquid oxygen in the final storage tank meets the process requirement.
The liquid-taking hose is connected with the end of the vehicle and is provided with a breaking valve. When emergency working condition occurs or the tank car slides and a driver forgets to detach the joint, the tank car can directly drive away from the filling area, and the self-sealing of the pipelines at two sides can be realized by pulling the separated two valve clacks of the breaking valve. Only the breaking valve breaking bolt is broken, and the pipeline of the sledge body/tank car is intact.
The rocket end dry type joint is attached with a nitrogen purging pipe interface, and the front end of the vehicle connecting hose is provided with a discharge bypass. After the liquid oxygen is filled, blowing nitrogen is introduced from the arrow, and residual liquid in the pipeline is blown into the tank car. After the residual liquid is basically blown and swept, the vehicle-receiving hose is slowly opened to discharge a bypass stop valve, so that the low-temperature medium is completely emptied, and the accumulated liquid in the pipeline in the sledge is prevented from being pressed.
The pipeline is high-efficient cold insulation. The hose and the hard pipe on the vertical arm/launching platform are vacuum pipes, and the pipelines with more instruments/valves in the sledge are kept cold by adopting heat insulating materials.
The skid contains a high-pressure nitrogen cylinder group 8 which is used as an instrument gas source of a pneumatic switch valve and a pneumatic regulating valve.
The mobile liquid oxygen filling sledge of the utility model replaces the on-site storage tank and the filling pump with the leased liquid oxygen tank vehicle with the pump, and replaces the on-site filling pipeline with the vehicle-mounted quantitative filling sledge, thereby greatly reducing the on-site construction cost; the filling sledge is internally provided with valve instrument components such as a flow regulating valve, an emergency cut-off valve, a mass flowmeter, a temperature/pressure transmitter and the like, and can safely and quantitatively complete a filling task; the quantitative filling skid chassis is designed according to the installation form of a 20-foot container, can be conveniently installed on a container trailer, and has good maneuverability of a pump truck and a quantitative filling truck, thereby saving a launching site and facilitating transition; the pump truck can be directly filled, so that the transfer filling process is omitted, and liquid oxygen is saved; compared with open-air arrangement, the vehicle-mounted filling sledge has the advantages of good storage condition, easiness in maintenance and longer service life, and meanwhile, the filling sledge is provided with the liquid oxygen driving type side plate which is only opened when in use, so that the protection effect is good.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (9)
1. The utility model provides a remove liquid oxygen filling sledge, includes 20 feet container formula chassis (1), inlet cut-off ball valve (2), subcooling bypass hand valve (3), temperature transmitter (4), flow control valve (5), relief valve (6), mass flow meter (7), high-pressure nitrogen gas bottle group (8), outlet cut-off ball valve (9), support conduit saddle (10), explosion-proof junction box (11) and electrostatic grounding wire reel (122), characterized by: the upper surface of the 20-foot container type chassis (1) is fixedly connected with two transverse liquid outlet pipes (12) through a supporting pipe bracket (10), the upper surface of the 20-foot container type chassis (1) is provided with transverse branch conveying pipes (13) at the liquid inlet positions of the transverse liquid outlet pipes (12), the transverse liquid outlet pipe (12) is fixedly communicated with the transverse branch conveying pipe (13) through a liquid outlet cut-off ball valve (9), one side of the transverse branch conveying pipe (13) is fixedly communicated with a main liquid inlet conveying pipe (14) through a flow regulating valve (5) and a supercooling bypass hand valve (3), a lateral liquid inlet pipe (15) for connecting the liquid inlet cut-off ball valve (2) is welded and fixed on the outer side surface of the main liquid inlet conveying pipe (14), the liquid inlet cut-off ball valve (2) is fixed with an outer liquid inlet connecting pipe (16) through a lateral flange bolt.
2. The mobile liquid oxygen filling skid of claim 1, wherein: and the upper end of the transverse liquid outlet pipe (12) and the main liquid inlet conveying pipe (14) are both provided with a temperature transmitter (4).
3. The mobile liquid oxygen filling skid according to claim 1, wherein: the 20-foot container type chassis (1) is characterized in that the upper surface of the 20-foot container type chassis (1) is located on the outer side of a transverse branch conveying pipe (13) and is fixedly provided with a longitudinal assembling frame (17) used for installing an explosion-proof junction box (11) through bolts, the front end of the longitudinal assembling frame (17) is provided with a lateral assembling sliding groove (18) with an upper end open, the back of the explosion-proof junction box (11) is fixedly provided with a longitudinal assembling sliding block (19) through bolts, the explosion-proof junction box (11) is inserted into the lateral assembling sliding groove (18) through the longitudinal assembling sliding block (19) and is connected with the longitudinal assembling sliding groove (17) in a sliding manner, the inner side surface of the lateral assembling sliding groove (18) is located on the longitudinal assembling sliding block (19) and is provided with an integral structure limiting plate (20) bent forwards, the inner thread adjusting through hole of a built-in thread adjusting rod (21) is formed inside the longitudinal assembling sliding block (19), and two ends of the thread adjusting rod (21) penetrate through the limiting plate (20) and are movably connected with the limiting plate (20), the top ends of the two sides of the threaded adjusting rod (21) are positioned at one side of the limiting plate (20) and are coaxially fixed with an integral limiting adjusting block (22).
4. The mobile liquid oxygen filling skid of claim 3, wherein: and an extrusion spring (23) is movably sleeved between the longitudinal assembling sliding block (19) and the limiting plate (20) at the outer side of the thread adjusting rod (21).
5. The mobile liquid oxygen filling skid of claim 3, wherein: and the upper surface of the 20-foot container type chassis (1) is fixed with a mounting and adjusting device for mounting the high-pressure nitrogen bottle group (8) by bolts at one side of the longitudinal assembly frame (17).
6. The mobile liquid oxygen filling skid of claim 5, wherein: the installation adjusting device comprises a U-shaped structure bottom assembly frame (25) fixed on the upper surface of the 20-foot container type chassis (1) through bolts, an internal overturning frame (26) connected to the inner side of the bottom assembly frame (25) in a sliding mode through a lateral rotating shaft, and arc-shaped fixing frames (27) fixedly installed on the outer walls of the two sides of the internal overturning frame (26) through bolts.
7. The mobile liquid oxygen filling skid of claim 1, wherein: and a bottom mounting bracket (28) for mounting an electrostatic grounding wire spool (122) is fixed on the upper surface of the 20-foot container type chassis (1) through bolts.
8. The mobile liquid oxygen filling skid of claim 1, wherein: the upper surface of the 20-foot container type chassis (1) is positioned at the lower end of the outside liquid inlet connecting pipe (16) and is fixedly connected with a bottom support frame (29) convenient to mount and fix.
9. The mobile liquid oxygen filling skid of claim 1, wherein: the mass flowmeter (7) is fixedly communicated with the transverse branch conveying pipe (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122740141.5U CN217082197U (en) | 2021-11-10 | 2021-11-10 | Mobile liquid oxygen filling sledge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122740141.5U CN217082197U (en) | 2021-11-10 | 2021-11-10 | Mobile liquid oxygen filling sledge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217082197U true CN217082197U (en) | 2022-07-29 |
Family
ID=82496982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122740141.5U Active CN217082197U (en) | 2021-11-10 | 2021-11-10 | Mobile liquid oxygen filling sledge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217082197U (en) |
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2021
- 2021-11-10 CN CN202122740141.5U patent/CN217082197U/en active Active
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