CN114321708A - Storage tank precooling device for liquefied natural gas filling station - Google Patents
Storage tank precooling device for liquefied natural gas filling station Download PDFInfo
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- CN114321708A CN114321708A CN202111547432.0A CN202111547432A CN114321708A CN 114321708 A CN114321708 A CN 114321708A CN 202111547432 A CN202111547432 A CN 202111547432A CN 114321708 A CN114321708 A CN 114321708A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
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Abstract
The invention relates to a precooling device, in particular to a storage tank precooling device for a liquefied natural gas filling station. The technical problem of the invention is that: the storage tank precooling device for the liquefied natural gas filling station is capable of quickly precooling the storage tank. The technical implementation scheme of the invention is as follows: the utility model provides a storage tank precooling apparatus for liquefied natural gas filling station, is equipped with the supporting seat including first fixed plate, supporting seat and liquid nitrogen case, first fixed plate top one side, keeps away from first fixed plate top one side of supporting seat and has placed the liquid nitrogen case. The top ball and the moving plate are matched with each other, so that two protective blocking second liquid conveying pipes can be formed, and liquid nitrogen in the liquid nitrogen box can be prevented from leaking through the first liquid conveying pipe and the second liquid conveying pipe when precooling is not carried out.
Description
Technical Field
The invention relates to a precooling device, in particular to a storage tank precooling device for a liquefied natural gas filling station.
Background
With the gradual maturity of new energy technology, many cars also gradually adopt compressed natural gas, liquefied natural gas and the like as fuels, when liquefied natural gas needs to be added into a car, the car can be added into a filling station, the liquefied natural gas of the filling station is usually stored in a storage tank, before the liquefied natural gas is introduced, the storage tank needs to be precooled, the storage tank can start to be introduced with the liquefied natural gas, the storage tank is precooled in a refrigerating chamber at present, but the precooling time required by the mode is long, so that the subsequent work of introducing the liquefied natural gas is influenced, and the work efficiency is influenced.
Therefore, it is necessary to design a pre-cooling device for an lng storage tank, which can rapidly pre-cool the storage tank.
Disclosure of Invention
In order to overcome the defect that the subsequent work of introducing liquefied natural gas is influenced by long time for precooling a storage tank at present, the invention has the technical problems that: the storage tank precooling device for the liquefied natural gas filling station is capable of quickly precooling the storage tank.
The technical implementation scheme of the invention is as follows: the utility model provides a storage tank precooling apparatus for liquefied natural gas filling station, including first fixed plate, a supporting seat, liquid nitrogen case, first switch, the second switch, top opening mechanism and first opening mechanism, first fixed plate top one side is equipped with the supporting seat, keep away from first fixed plate top one side of supporting seat and placed liquid nitrogen case, first fixed plate top one side that is close to the supporting seat is equipped with first switch and second switch, first switch is in second switch one side, first fixed plate one side that is close to the storage tank is equipped with top opening mechanism, be connected with first opening mechanism between top opening mechanism and the first fixed plate.
Furthermore, the ejection mechanism comprises a first infusion tube, a second infusion tube, an ejection ball, an annular stop block and an elastic part, the first infusion tube is arranged on one side of a first fixed plate close to the storage tank, the second infusion tube is arranged in the first infusion tube in a sliding mode, the annular stop block is arranged on one side in the second infusion tube, the elastic part is arranged on one side in the second infusion tube, the ejection ball is arranged at one end of the elastic part, and the ejection ball is matched with the annular stop block.
Further, the first opening mechanism comprises a first fixing block, a first electric push rod, a rotating plate, a second fixing plate, a moving plate and a guide rod, the first fixing block is arranged on one side of the first fixing plate close to the second infusion tube, the first electric push rod is arranged on the first fixing block, the second fixing plate is arranged on one side of the second infusion tube, a plurality of moving plates are uniformly arranged in the second fixing plate in a sliding mode, the rotating plate is arranged on one side of the second infusion tube in a rotating mode, the rotating plate is located on one side of the second fixing plate, and the moving plates are matched with the rotating plate in a sliding mode.
Furthermore, the infusion support further comprises a moving mechanism, the moving mechanism comprises a second fixed block, a third fixed plate and a second electric push rod, the second fixed block is arranged on one side in the first fixed plate and located on one side of the first fixed block, the second electric push rod is arranged on the second fixed block, the third fixed plate is arranged on one side of a second infusion tube and connected with a second electric push rod telescopic rod, and the third fixed plate is located on one side of a rotating plate.
Further, still including the second opening mechanism, the second opening mechanism is equipped with fixed frame including fixed frame, third electric putter and open-close board on one side of the first fixed plate, and one side is equipped with third electric putter in the fixed frame, and third electric putter telescopic link is connected with the open-close board.
Further, still including the forced induction mechanism, the forced induction mechanism is including the movable board, supporting spring, pressure sensor, first fly leaf, first connecting rod, second fly leaf and light, the bottom is equipped with pressure sensor in the supporting seat, the slidingtype is equipped with the movable board in the supporting seat, be connected with supporting spring between pressure sensor and the movable board, first fixed plate top one side is equipped with the supporting shoe, supporting shoe one side rotary type is equipped with the second fly leaf, movable board one side is equipped with first fly leaf, second fly leaf one side is equipped with first connecting rod, first connecting rod and the slidingtype cooperation of first fly leaf, first fixed plate top one side is equipped with the light.
Further, still including fixed establishment, fixed establishment is including the dysmorphism piece, the connecting rod, the rack, the second connecting rod, the fixed block opens and shuts, gear and fluting sliding seat, the supporting shoe top is equipped with the fluting sliding seat, one side slidingtype is equipped with the dysmorphism piece in the first fixed plate, fluting sliding seat internal sliding type is equipped with the connecting rod, connecting rod one end symmetry is equipped with the rack, supporting seat top one side symmetry rotary type is equipped with the fixed block that opens and shuts, the fixed block middle part that opens and shuts all is equipped with the gear, wheel and rack correspond the meshing, be connected with compression spring between fluting sliding seat and the connecting rod, second fly leaf opposite side is equipped with the second connecting rod, second connecting rod and the cooperation of dysmorphism piece slidingtype.
The control box is arranged on the upper right side of the first fixing plate and comprises a switching power supply and a control module, the switching power supply supplies power to the whole equipment, a power main switch is connected to the switching power supply through a circuit, and the switching power supply is electrically connected with the control module; the control module is connected with a DS1302 clock circuit and a 24C02 circuit; first switch, second switch and pressure sensor all pass through electric connection with control module, and first electric putter, second electric putter, third electric putter and light all pass through peripheral line with control module and are connected.
The invention achieves the following effects:
1. the top ball and the moving plate are matched with each other, so that two protective blocking second liquid conveying pipes can be formed, and liquid nitrogen in the liquid nitrogen box can be prevented from leaking through the first liquid conveying pipe and the second liquid conveying pipe when precooling is not carried out.
2. After liquid nitrogen is conveyed, the second electric push rod is shortened to drive the second liquid conveying pipe to move and reset, the second liquid conveying pipe can be moved without manual work, and hands are prevented from being injured by over-low freezing of the temperature of the second liquid conveying pipe after the liquid nitrogen is conveyed.
3. The left and right movement of the opening plate can block the first infusion tube, so that the influence on the liquid nitrogen delivery caused by the falling of an object in the first infusion tube is avoided.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
FIG. 2 is a schematic view of a first partial body structure according to the present invention.
Fig. 3 is a schematic perspective view of the pressure sensing mechanism of the present invention.
Fig. 4 is an enlarged schematic perspective view of part a of the present invention.
Fig. 5 is an enlarged perspective view of part B of the present invention.
Fig. 6 is a perspective view of a second opening mechanism of the present invention.
FIG. 7 is a schematic view of a second partial body structure according to the present invention.
Fig. 8 is an enlarged perspective view of part C of the present invention.
Fig. 9 is an enlarged perspective view of part D of the present invention.
Fig. 10 is a schematic view of a first partially separated body structure of the first opening mechanism of the present invention.
Fig. 11 is a schematic view of a second partial body structure of the first opening mechanism of the present invention.
Fig. 12 is a perspective view of a third embodiment of the present invention.
FIG. 13 is a circuit block diagram of the present invention.
Fig. 14 is a schematic circuit diagram of the present invention.
In the reference symbols: 1_ first fixed plate, 2_ support base, 3_ storage tank, 4_ liquid nitrogen tank, 5_ first switch, 6_ second switch, 7_ control box, 8_ top opening mechanism, 81_ first liquid transport tube, 82_ second liquid transport tube, 83_ top ball, 84_ annular stopper, 85_ elastic member, 9_ first opening mechanism, 91_ first fixed block, 92_ first electric push rod, 93_ rotating plate, 94_ second fixed plate, 95_ moving plate, 10_ moving mechanism, 101_ second fixed block, 102_ third fixed plate, 103_ second electric push rod, 11_ second opening mechanism, 1101_ fixed frame, 1102_ third electric push rod, 1103_ opening plate, 12_ pressure sensing mechanism, 1201_ movable plate, 1202_ support spring, 1203_ pressure sensor, 1204_ first movable plate, 1205_ first link, 1206_ second movable plate, 12011_ illuminating lamp, 13_ fixed mechanism, 1301_ special-shaped block, 1302_ connecting rod, 1303_ rack, 1304_ second connecting rod, 1305_ opening and closing fixing block, 1306_ gear, 1307_ slotted sliding seat.
Detailed Description
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Example 1
The utility model provides a storage tank precooling apparatus for liquefied natural gas filling station, as shown in fig. 1-14, including first fixed plate 1, supporting seat 2, liquid nitrogen case 4, first switch 5, the second switch 6, top opening mechanism 8 and first opening mechanism 9, 1 top front side of first fixed plate is equipped with supporting seat 2, liquid nitrogen case 4 has been placed to 1 top rear side of first fixed plate, 1 top right front side of first fixed plate is equipped with first switch 5 and second switch 6, first switch 5 is located second switch 6 left side, 1 upside of first fixed plate is equipped with top opening mechanism 8, be connected with first opening mechanism 9 between top opening mechanism 8 and the first fixed plate 1.
The ejection mechanism 8 comprises a first infusion tube 81, a second infusion tube 82, an ejection ball 83, an annular stopper 84 and an elastic part 85, the first infusion tube 81 is arranged on the rear side of the upper portion of the first fixing plate 1, the second infusion tube 82 is arranged in the first infusion tube 81 in a sliding mode, the annular stopper 84 is arranged on the inner front side of the second infusion tube 82, the elastic part 85 is arranged on the inner front side of the second infusion tube 82, the ejection ball 83 is arranged at the front end of the elastic part 85, and the ejection ball 83 is matched with the annular stopper 84.
The first opening mechanism 9 comprises a first fixing block 91, a first electric push rod 92, a rotating plate 93, a second fixing plate 94, a moving plate 95 and a guide rod, the first fixing block 91 is arranged at the upper part of the inner rear side of the first fixing plate 1, the first electric push rod 92 is arranged on the first fixing block 91, the second fixing plate 94 is arranged at the rear side of the second infusion tube 82, six moving plates 95 are uniformly arranged in the second fixing plate 94 in a sliding mode, the rotating plate 93 is arranged at the rear side of the second infusion tube 82 in a rotating mode, the rotating plate 93 is positioned at the rear side of the second fixing plate 94, and the moving plates 95 and the rotating plate 93 are matched in a sliding mode.
When the liquefied natural gas filling station needs to store liquefied natural gas, and therefore the storage tank 3 of the liquefied natural gas needs to be precooled, a worker can press a power supply main switch to electrify the device, then place the storage tank 3 in the support base 2, place the liquid nitrogen tank 4 at the rear side of the top of the first fixing plate 1, then align an air outlet pipe of the liquid nitrogen tank 4 with the first liquid conveying pipe 81, open an air inlet of the storage tank 3 and align with a liquid outlet of the second liquid conveying pipe 82, then push the second liquid conveying pipe 82 to move forwards, the second liquid conveying pipe 82 moves forwards to drive the top ball 83, the annular stopper 84 and the elastic piece 85 to move forwards, when the top ball 83 touches the storage tank 3, the second liquid conveying pipe 82 continues to move forwards, so that the top ball 83 moves backwards in the second liquid conveying pipe 82, the elastic piece 85 is compressed, then the first switch 5 can be pressed, and the first switch 5 sends a signal, the control module receives signals to control the telescopic rod of the first electric push rod 92 to extend for two seconds and then stop working after one second, so as to drive the rotating plate 93 to rotate upwards, the rotating plate 93 rotates upwards to drive the moving plate 95 to move away from the outer side of the second fixing plate 94, so as not to block the second infusion tube 82, liquid nitrogen in the liquid nitrogen box 4 can flow into the storage tank 3 through the first infusion tube 81 and the second infusion tube 82, precooling is performed on the storage tank 3, the second switch 6 can be pressed after precooling is completed, the second switch 6 sends signals, the control module receives signals to control the telescopic rod of the first electric push rod 92 to shorten for two seconds and then stop working, the rotating plate 93 rotates downwards to reset under the action of gravity, so that the moving plate 95 approaches to each other on the second fixing plate 94 to block the second infusion tube 82 again, and then the second infusion tube 82 can be pulled to move backwards, ball 83 pushes up the removal of ball in second transfer line 82 forward under elastic component 85's effect and resets, so alright block up second transfer line 82 with the cooperation of annular dog 84, so can form double-deck protection with the cooperation of movable plate 95, avoid not carrying out the liquid nitrogen in the precooling during operation liquid nitrogen case 4 and can spill, so alright take off storage tank 3 and be used for storing liquefied natural gas, the staff can press the power master switch afterwards and make this device outage can.
The infusion tube fixing device is characterized by further comprising a moving mechanism 10, wherein the moving mechanism 10 comprises a second fixing block 101, a third fixing block 102 and a second electric push rod 103, the second fixing block 101 is arranged on the upper portion of the inner rear side of the first fixing block 1, the second fixing block 101 is located on the rear side of the first fixing block 91, the second electric push rod 103 is arranged on the second fixing block 101, the third fixing block 102 is arranged on the rear side of the second infusion tube 82, the third fixing block 102 is connected with a telescopic rod of the second electric push rod 103, and the third fixing block 102 is located on the rear side of the rotating plate 93.
When precooling is carried out, the first switch 5 is pressed, the first switch 5 sends a signal, the control module receives the signal to control the second electric push rod 103 to extend for one second and then stop working, the second electric push rod 103 extends to drive the third fixing plate 102 to move forward so as to drive the second infusion tube 82 to move forward, so that the first electric push rod 92 does not need to be manually pushed, the second electric push rod 92 automatically works after one second, so that liquid nitrogen conveying can be carried out, precooling can be carried out on the storage tank 3, the second switch 6 is pressed after the cold is finished, the second switch 6 sends a signal, the control module receives the signal to control the second electric push rod 103 to shorten for two seconds and then stop working, so that the moving plate 95 can firstly block the second infusion tube 82, the second electric push rod 103 drives the third fixing plate 102 and the second infusion tube 82 to move backward and reset, this allows the top ball 83 to engage the annular stop 84 to again block the second infusion tube 82.
The folding type folding device is characterized by further comprising a second opening mechanism 11, wherein the second opening mechanism 11 comprises a fixing frame 1101, a third electric push rod 1102 and a folding plate 1103, the fixing frame 1101 is arranged on the upper portion of the rear side of the first fixing plate 1, the third electric push rod 1102 is arranged on the left side in the fixing frame 1101, and the folding plate 1103 is connected to an expansion rod of the third electric push rod 1102.
Open-close plate 1103 blocks first transfer line 81 during the beginning, thereby avoid having the object can drop in first transfer line 81, influence the transport of liquid nitrogen, when pressing first switch 5, first switch 5 signals, stop work after control module received signal control third electric putter 1102 telescopic link shortens a second, thereby drive open-close plate 1103 and move left, in this moment liquid nitrogen alright get into first transfer line 81, when meeting cold the back that finishes, press second switch 6, second switch 6 signals, control module received signal control third electric putter 1102 telescopic link shortens a second stop work afterwards, so drive open-close plate 1103 and reset and move right and block first transfer line 81 once more.
Still including pressure sensing mechanism 12, pressure sensing mechanism 12 is including movable plate 1201, supporting spring 1202, pressure sensor 1203, first fly leaf 1204, first connecting rod 1205, second fly leaf 1206 and light 12011, the bottom is equipped with pressure sensor 1203 in the supporting seat 2, 2 internal sliding type of supporting seat are equipped with movable plate 1201, be connected with supporting spring 1202 between pressure sensor 1203 and the movable plate 1201, 1 top rear side of first fixed plate is equipped with the supporting shoe, the supporting shoe upside rotary type is equipped with second fly leaf 1206, movable plate 1201 rear side is equipped with first fly leaf 1204, second fly leaf 1206 front side is equipped with first connecting rod 1205, first connecting rod 1205 and first fly leaf 1204 sliding type cooperation, first fixed plate 1 top left side front side is equipped with light 12011.
When the staff puts storage tank 3 into supporting seat 2, be in on movable plate 1201 this moment, thereby drive movable plate 1201 and move down, supporting spring 1202 is compressed, along with going on of precooling work, the liquid nitrogen in storage tank 3 increases gradually, when pressure sensor 1203 detects the numerical value of pressure and reaches the default, represent that the precooling finishes this moment, pressure sensor 1203 signals, control module received signal control light 12011 lights, thereby the suggestion staff precools and finishes, then the staff alright take out the work of storage tank 3, movable plate 1201 moves upward under the effect of supporting spring 1202 again and resets afterwards, pressure sensor 1203 detects the numerical value of pressure and reaches the initial value, pressure sensor 1203 signals, control module received signal control light 12011 extinguishes.
The fixing mechanism 13 comprises a special-shaped block 1301, a connecting rod 1302, a rack 1303, a second connecting rod 1304, an opening and closing fixing block 1305, a gear 1306 and a slotted sliding seat 1307, the top of the supporting block is provided with the slotted sliding seat 1307, the rear side of the first fixing plate 1 is movably provided with the special-shaped block 1301, the slotted sliding seat 1307 is internally and slidably provided with the connecting rod 1302, the front end of the connecting rod 1302 is bilaterally and symmetrically provided with the rack 1303, the rear side of the top of the supporting seat 2 is rotatably provided with the opening and closing fixing block 1305, the middle of the opening and closing fixing block 1305 is provided with the gear 1306, the gear 1306 is correspondingly meshed with the rack 1303, a compression spring is connected between the slotted sliding seat 1307 and the connecting rod 1302, the rear side of the second movable plate 1206 is provided with the second connecting rod 1304, and the second connecting rod 1304 is slidably matched with the special-shaped block 1301.
The movable plate 1201 moves downwards to drive the first connecting rod 1205 to move downwards, so as to drive the front side of the second movable plate 1206 to rotate downwards, the rear side of the second movable plate 1206 rotates upwards, the second movable plate 1206 can drive the second connecting rod 1304 to move upwards, the second connecting rod 1304 moves upwards to drive the special-shaped block 1301 to move upwards, the special-shaped block 1301 moves upwards to drive the connecting rod 1302 to move forwards, the compression spring is compressed, the connecting rod 1302 moves forwards to drive the rack 1303 to move forwards, so as to drive the gear 1306 to rotate, the gear 1306 rotates to drive the opening and closing fixing block 1305 to rotate and approach each other, so as to clamp the storage tank 3, so as to avoid the left and right shaking during precooling, and simultaneously, the up and down movement of the storage tank 3 is not influenced, after the storage tank 3 is taken out after precooling is finished, the movable plate 1201 moves upwards to drive the first connecting rod 1205 to move upwards, so as to drive the second movable plate 1206 to rotate and reset, so as to drive the second connecting rod 1304 and the special-shaped block 1301 to move downwards, the connecting rod 1302 and the rack 1303 are moved backward to be reset under the action of the compression spring, so that the gear 1306 and the opening and closing fixing block 1305 are rotated to be reset.
The device is characterized by further comprising a control box 7, the control box 7 is arranged on the upper right side of the first fixing plate 1, the control box 7 comprises a switching power supply and a control module, the switching power supply supplies power to the whole device, a power main switch is connected to the switching power supply through a circuit, and the switching power supply is electrically connected with the control module; the control module is connected with a DS1302 clock circuit and a 24C02 circuit; the first switch 5, the second switch 6 and the pressure sensor 1203 are electrically connected with the control module, and the first electric push rod 92, the second electric push rod 103, the third electric push rod 1102 and the illuminating lamp 12011 are connected with the control module through peripheral circuits.
While the disclosure has been described with respect to a limited number of embodiments, those skilled in the art, having benefit of this disclosure, will appreciate that various other embodiments can be devised which do not depart from the scope of the invention as disclosed herein. Accordingly, the scope of the invention should be limited only by the attached claims.
Claims (8)
1. A storage tank precooling device for a liquefied natural gas filling station is characterized by comprising a first fixing plate (1), a supporting seat (2) and a liquid nitrogen box (4), first switch (5), second switch (6), top opening mechanism (8) and first opening mechanism (9), first fixed plate (1) top one side is equipped with supporting seat (2), first fixed plate (1) top one side of keeping away from supporting seat (2) has placed liquid nitrogen case (4), first fixed plate (1) top one side of being close to supporting seat (2) is equipped with first switch (5) and second switch (6), first switch (5) are in second switch (6) one side, first fixed plate (1) one side of being close to storage tank (3) is equipped with top opening mechanism (8), be connected with first opening mechanism (9) between top opening mechanism (8) and first fixed plate (1).
2. The storage tank precooling apparatus for the liquefied natural gas filling station as claimed in claim 1, wherein the back-opening mechanism (8) comprises a first infusion tube (81), a second infusion tube (82), a top ball (83), an annular stopper (84) and an elastic member (85), the first infusion tube (81) is arranged on one side of the first fixing plate (1) close to the storage tank (3), the second infusion tube (82) is arranged in the first infusion tube (81) in a sliding manner, the annular stopper (84) is arranged on one side in the second infusion tube (82), the elastic member (85) is arranged on one side in the second infusion tube (82), the top ball (83) is arranged at one end of the elastic member (85), and the top ball (83) is matched with the annular stopper (84).
3. A tank pre-cooling apparatus for an lng filling station according to claim 2, the infusion tube opening mechanism is characterized in that the first opening mechanism (9) comprises a first fixing block (91), a first electric push rod (92), a rotating plate (93), a second fixing plate (94), a moving plate (95) and a guide rod, the first fixing block (91) is arranged on one side in the first fixing plate (1) close to the second infusion tube (82), the first electric push rod (92) is arranged on the first fixing block (91), the second fixing plate (94) is arranged on one side of the second infusion tube (82), the plurality of moving plates (95) are arranged in the second fixing plate (94) in an evenly sliding mode, the rotating plate (93) is arranged on one side of the second infusion tube (82) in a rotating mode, the rotating plate (93) is located on one side of the second fixing plate (94), and the moving plates (95) are matched with the rotating plate (93) in a sliding mode.
4. The storage tank precooling apparatus for the liquefied natural gas filling station as claimed in claim 3, further comprising a moving mechanism (10), wherein the moving mechanism (10) comprises a second fixed block (101), a third fixed plate (102) and a second electric push rod (103), the second fixed block (101) is arranged on one side in the first fixed plate (1), the second fixed block (101) is arranged on one side of the first fixed block (91), the second electric push rod (103) is arranged on the second fixed block (101), the third fixed plate (102) is arranged on one side of the second infusion tube (82), the third fixed plate (102) is connected with an expansion link of the second electric push rod (103), and the third fixed plate (102) is arranged on one side of the rotating plate (93).
5. The device for precooling the storage tank of the liquefied natural gas filling station as claimed in claim 4, further comprising a second opening mechanism (11), wherein the second opening mechanism (11) comprises a fixing frame (1101), a third electric push rod (1102) and a plywood (1103), the fixing frame (1101) is arranged on one side of the first fixing plate (1), the third electric push rod (1102) is arranged on one inner side of the fixing frame (1101), and the plywood (1103) is connected to an expansion link of the third electric push rod (1102).
6. The pre-cooling device for the storage tank of the liquefied natural gas filling station, according to claim 5, further comprising a pressure sensing mechanism (12), wherein the pressure sensing mechanism (12) comprises a movable plate (1201), a supporting spring (1202), a pressure sensor (1203), a first movable plate (1204), a first connecting rod (1205), a second movable plate (1206) and a lighting lamp (12011), the pressure sensor (1203) is disposed at the bottom inside the supporting seat (2), the movable plate (1201) is slidably disposed inside the supporting seat (2), the supporting spring (1202) is connected between the pressure sensor (1203) and the movable plate (1201), the supporting block is disposed at one side of the top of the first fixed plate (1), the second movable plate (1206) is rotatably disposed at one side of the supporting block, the first movable plate (1204) is disposed at one side of the movable plate (1201), the first connecting rod (1205) is disposed at one side of the second movable plate (1206), the first connecting rod (1205) is slidably engaged with the first movable plate (1204), and a lighting lamp (12011) is disposed on one side of the top of the first fixed plate (1).
7. The storage tank precooling device for the liquefied natural gas filling station as claimed in claim 6, further comprising a fixing mechanism (13), wherein the fixing mechanism (13) comprises a special-shaped block (1301), a connecting rod (1302), a rack (1303), a second connecting rod (1304), an opening and closing fixed block (1305), a gear (1306) and a slotted sliding seat (1307), the top of the supporting block is provided with the slotted sliding seat (1307), the special-shaped block (1301) is slidably arranged on one side in the first fixing plate (1), the connecting rod (1302) is slidably arranged in the slotted sliding seat (1307), one end of the connecting rod (1302) is symmetrically provided with the rack (1303), the opening and closing fixed block (1305) is symmetrically and rotatably arranged on one side of the top of the supporting seat (2), the gear (1306) is arranged in the middle of the opening and closing fixed block (1305), the gear (1306) is correspondingly engaged with the rack (1303), and a compression spring is connected between the slotted sliding seat (1307) and the connecting rod (1302), the other side of the second movable plate (1206) is provided with a second connecting rod (1304), and the second connecting rod (1304) is in sliding fit with the special-shaped block (1301).
8. The storage tank precooling apparatus for the liquefied natural gas filling station according to claim 7, further comprising a control box (7), wherein the control box (7) is provided on the upper right side of the first fixing plate (1), the control box (7) comprises a switching power supply and a control module, the switching power supply supplies power to the whole apparatus, the switching power supply is connected with a power main switch through a line, and the switching power supply is electrically connected with the control module; the control module is connected with a DS1302 clock circuit and a 24C02 circuit; the first switch (5), the second switch (6) and the pressure sensor (1203) are electrically connected with the control module, and the first electric push rod (92), the second electric push rod (103), the third electric push rod (1102) and the illuminating lamp (12011) are connected with the control module through peripheral circuits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111547432.0A CN114321708B (en) | 2021-12-17 | 2021-12-17 | Storage tank precooling device for liquefied natural gas filling station |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111547432.0A CN114321708B (en) | 2021-12-17 | 2021-12-17 | Storage tank precooling device for liquefied natural gas filling station |
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| CN114321708A true CN114321708A (en) | 2022-04-12 |
| CN114321708B CN114321708B (en) | 2023-07-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114893951A (en) * | 2022-05-10 | 2022-08-12 | 甘细理 | Liquefied natural gas cold box precooling equipment |
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| CN207262033U (en) * | 2017-08-31 | 2018-04-20 | 昆山市恒安工业气体有限公司 | A kind of LNG tank installs decrease temperature and pressure device |
| CN209655013U (en) * | 2018-12-23 | 2019-11-19 | 郴州百江燃气实业有限公司 | A kind of LP gas cylinder charging device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114893951A (en) * | 2022-05-10 | 2022-08-12 | 甘细理 | Liquefied natural gas cold box precooling equipment |
| CN114893951B (en) * | 2022-05-10 | 2023-10-27 | 重庆炘扬航能源有限公司 | Liquefied natural gas cold box precooling equipment |
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| Publication number | Publication date |
|---|---|
| CN114321708B (en) | 2023-07-25 |
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