A gas recovery device for cryogenic liquefied gas storage tank

Abstract

The present invention discloses a gas recovery device for a low-temperature liquefied gas storage tank, comprising a base, wherein a rotating driving chassis capable of driving a plurality of tank bodies to realize turnover is arranged on the base, a telescopic gas recovery pipeline assembly capable of connecting to an output end of the tank body is arranged on one side of the rotating driving chassis, an intermittent driving mechanism capable of driving the rotating driving chassis to perform intermittent rotation is arranged on the base, and a reciprocating driving mechanism capable of driving the telescopic gas recovery pipeline assembly to perform reciprocating telescoping is arranged on the base, and the device has the following advantages: automatic alignment and connection of the recovery pipeline is realized, the alignment and connection are more precise, and the recovery pipeline can be automatically disassembled and the recovered tank body can be automatically removed and the tank body whose gas has not yet been recovered can be installed after the recovery is completed, thereby saving manual participation, and the gas recovery process is more stable and more efficient.

Description

Technical Field

[0001] The invention relates to a cryogenic liquefied gas tank recovery device, in particular to a cryogenic liquefied gas storage tank gas recovery device. Background Art

[0002] After use, there is often some residue in the cryogenic liquefied gas tank. At this time, the staff connects the output end of the tank to the recovery pipeline for gas recovery. This process requires manual recovery pipeline alignment and connection, manual disassembly after recovery, removal of the recovered tank and installation of the tank that has not yet recovered gas, which is very troublesome and inconvenient.

[0003] Therefore, the existing cryogenic liquefied gas tank recovery device needs to be further improved. Summary of the invention

[0004] The purpose of the present invention is to provide a gas recovery device for a low-temperature liquefied gas storage tank, which can realize automatic alignment and connection of recovery pipelines, automatic disassembly after recovery, automatic removal of the recovered tank body and installation of the tank body that has not yet recovered gas, etc.

[0005] In order to achieve the above object, the present invention adopts the following scheme:

[0006] A gas recovery device for a cryogenic liquefied gas storage tank, comprising a base, a rotating driving chassis capable of driving a plurality of tanks to realize turnover is arranged on the base, a telescopic gas recovery pipe assembly capable of connecting to an output end of the tank is arranged on one side of the rotating driving chassis, an intermittent driving mechanism capable of driving the rotating driving chassis to perform intermittent rotation is arranged on the base, and a reciprocating driving mechanism capable of driving the telescopic gas recovery pipe assembly to reciprocate and retract is arranged on the base;

[0007] The base is provided with a rotation driving mechanism capable of driving the intermittent driving mechanism and the reciprocating driving mechanism to work in turn.

[0008] Furthermore, the rotating drive chassis includes a rotating shaft arranged on the base, a rotating chassis is arranged on the rotating shaft, a plurality of tank mounting grooves are arranged on the rotating chassis, a liquefied gas tank can be installed on the tank mounting grooves, and a positioning structure is arranged between the liquefied gas tank and the tank mounting grooves.

[0009] Furthermore, the positioning structure includes a positioning slot arranged at the bottom of the liquefied gas tank, and the tank body mounting slot is provided with a positioning boss that can cooperate with the positioning slot to limit the rotation of the liquefied gas tank.

[0010] Furthermore, the telescopic gas recovery pipeline assembly includes a bracket arranged on the base, a pump body is arranged on the bracket, a connecting inner tube is arranged on the bracket, a connecting outer tube is movably arranged outside the connecting inner tube, and a gas pipeline is connected between the connecting inner tube and the pump body.

[0011] Furthermore, the intermittent drive mechanism includes a rotating disk arranged on the base, a swing rod is arranged on the rotating disk, a driving circular plate is arranged on the rotating chassis, a plurality of slots are evenly distributed around the center circumference of the driving circular plate, and a driving shaft body which can drive the plurality of slots to rotate in turn is arranged on the outer end of the swing rod.

[0012] Furthermore, the reciprocating drive mechanism includes an axle mounting frame arranged on the bracket, a movable axle is movably arranged in the axle mounting frame up and down, a revolving plate is arranged below the axle mounting frame, an eccentric shaft is arranged on the end face of the revolving plate, a hinge shaft is arranged at the lower end of the movable axle, a first connecting rod is hinged between the eccentric shaft and the hinge shaft, a first hinge seat is arranged at the upper end of the movable axle, a second hinge seat is arranged on the outer surface of the connecting outer tube, and a second connecting rod is hinged between the first hinge seat and the second hinge seat.

[0013] Further, the rotation driving mechanism includes a transmission rotating disk arranged on one side of the turnover disk, a first bevel gear is arranged on the turnover disk, a second bevel gear is arranged on the transmission rotating disk, the first bevel gear and the second bevel gear are meshed for transmission, a first gear is arranged on the transmission rotating disk, a second gear is arranged on the driving circular plate, an active motor is arranged between the first gear and the second gear, an active half gear is arranged at the output end of the active motor, and the active half gear is meshed with the first gear and the second gear in turn.

[0014] Further, the sum of the tooth strokes of the first gear and the second gear is equal to the tooth stroke of the driving half gear.

[0015] In summary, the present invention has the following beneficial effects compared with the prior art:

[0016] The present invention solves the shortcomings of the existing low-temperature liquefied gas tank recovery device. Through the structural setting of the present invention, it has the following advantages: automatic alignment and connection of the recovery pipeline is realized, the alignment and connection are more precise, and after the recovery is completed, the tank body that has been recovered is automatically disassembled and automatically removed, and the tank body that has not yet recovered the gas is installed, etc., which saves manual participation, and the gas recovery process is more stable and efficient. It also has a simple structure and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view of the present invention;

[0018] Figure 2 A top view of the present invention;

[0019] Figure 3 for Figure 1 Section view along line AA;

[0020] Figure 4 for Figure 1 Sectional view along line CC;

[0021] Figure 5 for Figure 1 Sectional view along line BB;

[0022] Figure 6 It is a structural schematic diagram of the present invention; DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] See also Figure 1-6 The present invention provides a gas recovery device for a low-temperature liquefied gas storage tank, comprising a base 1, on which a rotating driving chassis 2 capable of driving a plurality of tanks to realize turnover is disposed, a telescopic gas recovery pipeline assembly 3 capable of connecting to an output end of the tank is disposed on one side of the rotating driving chassis 2, an intermittent driving mechanism 4 capable of driving the rotating driving chassis 2 to perform intermittent rotation is disposed on the base 1, and a reciprocating driving mechanism 5 capable of driving the telescopic gas recovery pipeline assembly 3 to reciprocate and retract is disposed on the base 1;

[0025] The base 1 is provided with a rotating drive mechanism 6 capable of driving the intermittent drive mechanism 4 and the reciprocating drive mechanism 5 to work in turns;

[0026] Step 1: Install the unused tanks on the rotating drive chassis 2 and arrange them to wait for turnover;

[0027] Step 2: start the rotation drive mechanism 6, which can drive the telescopic gas recovery pipeline assembly 3 and the intermittent drive mechanism 4 to work in turn;

[0028] Step 3, when the intermittent drive mechanism 4 is working, it can drive the rotary drive chassis 2 to rotate intermittently, each time rotating a specified angle, the angle being the tank switching angle on the rotary drive chassis 2, that is, each rotation angle can make the output end of another tank align with the telescopic gas recovery pipe assembly 3;

[0029] Step 4: The telescopic gas recovery pipe assembly 3 can be telescopic, and can be connected to the output end of the tank body each time it is extended, and can be separated from the output end of the tank body each time it is retracted;

[0030] Step 5: The reciprocating drive mechanism 5 can control the telescopic gas recovery pipe assembly 3 to perform a timed telescopic operation;

[0031] Step 6: After the telescopic gas recovery pipe assembly 3 is extended, the rotation driving chassis 2 stops rotating. After the telescopic gas recovery pipe assembly 3 is retracted, the rotation driving chassis 2 rotates at a specified angle.

[0032] The rotating driving chassis 2 described in the present invention includes a rotating shaft 201 arranged on the base 1, a rotating chassis 202 is arranged on the rotating shaft 201, a plurality of tank mounting grooves 203 are arranged on the rotating chassis 202, a liquefied gas tank 204 can be installed on the tank mounting grooves 203, and a positioning structure 205 is arranged between the liquefied gas tank 204 and the tank mounting grooves 203.

[0033] The positioning structure 205 of the present invention comprises a positioning slot 2051 disposed at the bottom of the liquefied gas tank 204 , and a positioning boss 2052 is disposed on the tank body mounting slot 203 and can cooperate with the positioning slot 2051 to limit the rotation of the liquefied gas tank 204 .

[0034] The telescopic gas recovery pipeline assembly 3 of the present invention includes a bracket 301 arranged on the base 1, a pump body 305 is arranged on the bracket 301, a connecting inner tube 302 is arranged on the bracket 301, a connecting outer tube 303 is movably arranged outside the connecting inner tube 302, and a gas pipeline 304 is connected between the connecting inner tube 302 and the pump body 305.

[0035] The intermittent drive mechanism 4 of the present invention includes a rotating disk 401 arranged on the base 1, a swing rod 402 is arranged on the rotating disk 401, a driving circular plate 403 is arranged on the rotating chassis 202, a plurality of notches 404 are evenly distributed on the driving circular plate 403 around the central circumference of the driving circular plate 403, and a driving shaft 405 is arranged at the outer end of the swing rod 402, which can drive the plurality of notches 404 to rotate in turn.

[0036] The reciprocating drive mechanism 5 described in the present invention includes an axle mounting frame 501 arranged on the bracket 301, a movable axle 502 is movably arranged up and down in the axle mounting frame 501, a turnover plate 503 is arranged below the axle mounting frame 501, an eccentric shaft 504 is arranged on the end face of the turnover plate 503, a hinge shaft 505 is arranged at the lower end of the movable axle 502, a first connecting rod 506 is hinged between the eccentric shaft 504 and the hinge shaft 505, a first hinge seat 507 is arranged at the upper end of the movable axle 502, a second hinge seat 508 is arranged on the outer surface of the connecting outer tube 303, and a second connecting rod 509 is hinged between the first hinge seat 507 and the second hinge seat 508.

[0037] The alternate driving mechanism 6 described in the present invention includes a transmission rotating disk 601 arranged on one side of the revolving disk 503, a first bevel gear 602 is arranged on the revolving disk 503, a second bevel gear 607 is arranged on the transmission rotating disk 601, the first bevel gear 602 and the second bevel gear 607 are meshed for transmission, a first gear 603 is arranged on the transmission rotating disk 601, a second gear 604 is arranged on the driving circular plate 403, an active motor 605 is arranged between the first gear 603 and the second gear 604, an active half gear 606 is arranged at the output end of the active motor 605, and the active half gear 606 is meshed with the first gear 603 and the second gear 604 in turn.

[0038] In the present invention, the sum of the tooth strokes of the first gear 603 and the second gear 604 is equal to the tooth stroke of the driving half gear 606 .

[0039] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A gas recovery device for a cryogenic liquefied gas storage tank, comprising a base (1), characterized in that: The base (1) is provided with a rotating driving chassis (2) capable of driving a plurality of tanks to rotate, a telescopic gas recovery pipe assembly (3) capable of connecting to the output end of the tanks is provided on one side of the rotating driving chassis (2), an intermittent driving mechanism (4) capable of driving the rotating driving chassis (2) to rotate intermittently is provided on the base (1), and a reciprocating driving mechanism (5) capable of driving the telescopic gas recovery pipe assembly (3) to reciprocate and retract is provided on the base (1); The base (1) is provided with a rotating drive mechanism (6) capable of driving the intermittent drive mechanism (4) and the reciprocating drive mechanism (5) to work in turns; The rotary driving chassis (2) comprises a rotary shaft (201) arranged on the base (1), and a rotary chassis (202) is arranged on the rotary shaft (201); The telescopic gas recovery pipe assembly (3) comprises a bracket (301) arranged on the base (1); The intermittent driving mechanism (4) comprises a rotating disk (401) arranged on the base (1), a swing rod (402) being arranged on the rotating disk (401), and a driving circular plate (403) being arranged on the rotating chassis (202); The reciprocating drive mechanism (5) comprises an axle mounting frame (501) arranged on the bracket (301), a movable axle (502) being movably arranged up and down in the axle mounting frame (501), and a rotating disk (503) being arranged below the axle mounting frame (501); The rotation drive mechanism (6) comprises a transmission rotating disk (601) arranged on one side of the revolving disk (503); a first bevel gear (602) is arranged on the revolving disk (503); a second bevel gear (607) is arranged on the transmission rotating disk (601); the first bevel gear (602) and the second bevel gear (607) are meshed for transmission; a first gear (603) is arranged on the transmission rotating disk (601); a second gear (604) is arranged on the driving circular plate (403); an active motor (605) is arranged between the first gear (603) and the second gear (604); an active half gear (606) is arranged at the output end of the active motor (605); the active half gear (606) is meshed with the first gear (603) and the second gear (604) in turn.

2. A low-temperature liquefied gas storage tank gas recovery device according to claim 1, characterized in that: The rotary drive chassis (2) further comprises a plurality of tank mounting grooves (203) arranged on the rotary chassis (202), a liquefied gas tank (204) being capable of being mounted on the tank mounting grooves (203), and a positioning structure (205) being arranged between the liquefied gas tank (204) and the tank mounting grooves (203).

3. A low-temperature liquefied gas storage tank gas recovery device according to claim 2, characterized in that: The positioning structure (205) comprises a positioning slot (2051) arranged at the bottom of the liquefied gas tank (204), and the tank body mounting slot (203) is provided with a positioning boss (2052) capable of cooperating with the positioning slot (2051) to limit the rotation of the liquefied gas tank (204).

4. A gas recovery device for a cryogenic liquefied gas storage tank according to claim 2, characterized in that: The telescopic gas recovery pipeline assembly (3) further comprises a pump body (305) arranged on the support (301), a connecting inner tube (302) arranged on the support (301), a connecting outer tube (303) movably arranged outside the connecting inner tube (302), and a gas transmission pipeline (304) connected between the connecting inner tube (302) and the pump body (305).

5. A gas recovery device for a cryogenic liquefied gas storage tank according to claim 4, characterized in that: The intermittent drive mechanism (4) further comprises a plurality of notches (404) uniformly distributed on the drive circular plate (403) around the central circumference of the drive circular plate (403), and a drive shaft (405) capable of driving the plurality of notches (404) to rotate in turn is disposed at the outer end of the swing rod (402).

6. A gas recovery device for a cryogenic liquefied gas storage tank according to claim 5, characterized in that: The reciprocating drive mechanism (5) further includes an eccentric shaft (504) arranged on the end surface of the revolving plate (503), a hinge shaft (505) arranged at the lower end of the movable shaft body (502), a first connecting rod (506) hingedly connected between the eccentric shaft (504) and the hinge shaft (505), a first hinge seat (507) arranged at the upper end of the movable shaft body (502), a second hinge seat (508) arranged on the outer surface of the connecting outer tube (303), and a second connecting rod (509) hingedly connected between the first hinge seat (507) and the second hinge seat (508).

7. A gas recovery device for a cryogenic liquefied gas storage tank according to claim 6, characterized in that: The sum of the tooth strokes of the first gear (603) and the second gear (604) is equal to the tooth stroke of the driving half gear (606).

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