CN213336961U

CN213336961U - Liquefied natural gas sampler

Info

Publication number: CN213336961U
Application number: CN202022129359.2U
Authority: CN
Inventors: 刘缓缓
Original assignee: Individual
Current assignee: Shaanxi Guoheng Energy Co ltd
Priority date: 2020-09-24
Filing date: 2020-09-24
Publication date: 2021-06-01
Anticipated expiration: 2030-09-24

Abstract

The utility model discloses a liquefied natural gas sampler, including the sampler body, and locate the extrusion card section of thick bamboo of sampler body both sides, be provided with the fixing base on the both ends outer wall of gas holder, the lower extreme of fixing base is provided with the connecting rod, the lower extreme of connecting rod is provided with the supporting legs, the lower extreme of supporting legs is provided with the damping skid resistant course, the connecting rod is provided with a piston section of thick bamboo towards the one end of sample hose, sliding sleeve is equipped with the telescopic link in the piston section of thick bamboo, the telescopic link is towards the fixed setting of the one end and the extrusion card section of thick bamboo of sample hose, be. Realized carrying out the symmetrical formula extrusion to whole sample hose, avoided directly through the mode of hand extrusion reducing the carminative effect of extrusion, improved the exhaust efficiency to remaining natural gas in the gas holder, avoided remaining natural gas's waste, realized that the convenient vertical of sampler body is placed on the workstation, improved the stability of placing of sampler body.

Description

Liquefied natural gas sampler

Technical Field

The utility model belongs to the technical field of the natural gas sample, specifically be a liquefied natural gas sampler.

Background

Liquefied natural gas is generally recognized as the cleanest fossil energy on earth, is colorless, tasteless, nontoxic and noncorrosive, has the volume of about 1/625 of the volume of the same amount of gaseous natural gas, has the mass of only about 45% of the same volume of water, has very little pollution to air after being combusted, and emits large heat, so the liquefied natural gas is a relatively advanced energy source and can fundamentally improve the environmental quality.

The utility model discloses a liquefied natural gas sampler is disclosed in bulletin No. CN208026519U, including the sampler, the sampler upper surface is equipped with the manometer, the inside gas holder that is equipped with of sampler, is equipped with the pipeline on the sampler lateral wall and perforates, is equipped with vacuum pump, battery and vacuum tube on the sampler lateral wall, and the sampler bottom is equipped with the blast pipe, sample hose and sampling head, is equipped with the vacuum valve on the vacuum tube, is equipped with discharge valve on the blast pipe, is equipped with the vacuum pump switch on the battery, and the vacuum.

The specific operation of the liquefied natural gas sampler is that the vacuum valve and the exhaust valve are closed, the switch of the vacuum pump is opened, and the vacuum pump performs vacuum pumping operation on the gas storage tank to cause a vacuum state in the gas storage tank; after the gas storage tank is in a vacuum state, the sampling head is placed into a sample to be taken, the switch of the vacuum pump is closed, the exhaust valve is opened, and the sample is sucked into the gas storage tank from the sampling head by the negative pressure in the gas storage tank; after the sample detection is finished, opening a vacuum valve and an exhaust valve, and recovering the air pressure in the air storage tank and simultaneously discharging the sample; in the later stage, probably still remain some sample gas in the gas holder, for not extravagant, can close discharge valve this moment, open the vacuum valve, through carrying out a lot of extrudees to the sample hose, utilize the sampling head to extrude the air in the gas holder, extrude the residual gas in the gas holder from the vacuum valve.

However, the above-mentioned lng sampler extrudes the sampling hose by a hand-extrusion method, which is inefficient and has a low effective surface for extrusion, and thus causes a reduction in the efficiency of exhausting residual natural gas in the gas tank and a waste of residual natural gas.

In addition, the liquefied natural gas sampler does not have supporting legs, and when the sampler is not used, the sampler can be placed on a workbench only in a lying manner at will, and the placing manner is unstable and is easy to shake, so that equipment collision is caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a liquefied natural gas sampler to solve among the prior art hand extruded mode can greatly reduced to the gas holder in remain natural gas's exhaust efficiency, the problem of placing that the liquefied natural gas sampler that does not use can not be stable.

In order to achieve the above object, the utility model provides a following technical scheme: a liquefied natural gas sampler comprises a sampler body and extrusion clamping cylinders arranged on two sides of the sampler body, wherein the sampler body comprises a gas storage tank, a sampling hose and a sampling head, the sampler body is a liquefied natural gas sampler disclosed in the publication No. CN20802651U, the gas storage tank, the sampling hose and the sampling head are all related component structures, fixing seats are arranged on the outer walls of two ends of the gas storage tank, the two extrusion clamping cylinders and the two fixing seats are respectively arranged and are symmetrically arranged by taking the overlooking vertical central axis of the gas storage tank as the center, a connecting rod is arranged at the lower end of each fixing seat, a supporting leg is arranged at the lower end of each connecting rod, a piston cylinder is arranged at one end of each connecting rod facing the sampling hose, a telescopic rod is sleeved in each piston cylinder in a sliding way, one end of each telescopic rod facing the sampling hose is fixedly, except special explanation, all adopt No. forty-five steel to make, intensity is high, easy welding process, be provided with soft pad on the inside wall of an extrusion card section of thick bamboo orientation sample hose, soft pad is made for PU pad, has certain elasticity, when guaranteeing to the sample hose, can avoid causing the phenomenon of extrusion wearing and tearing to the sample hose.

Preferably, be provided with the square slide hole in the piston cylinder and lead the spout, the one end that the extrusion card section of thick bamboo was kept away from to the telescopic link is provided with leads the slider, the telescopic link passes the square slide hole and through leading slider and lead spout sliding connection, and slippage in this structure can avoid the telescopic link from the piston cylinder, and in addition, the side cross-section of telescopic link and square slide hole is square column structure, when guaranteeing that the telescopic link left and right sides translation is gliding, can avoid the telescopic link and the emergence rotation condition of the extrusion card section of thick bamboo, lead the slider and lead and be provided with reset spring between the spout, reset spring is the steel spring, adopts the spring steel to make, and the resilience force is ten.

Preferably, the overlooking cross section of the extrusion clamping cylinder is of a semi-arc structure, the shape of the semi-arc structure is matched with the shape of an outer ring of the overlooking circular cross section of the sampling hose, the vertical size of the extrusion clamping cylinder is not smaller than that of the sampling hose, the extrusion clamping cylinder is guaranteed to comprehensively extrude the whole sampling hose, and then the exhaust efficiency of residual natural gas in the gas storage tank is improved.

Preferably, the lateral cross section of supporting legs is trapezoidal structure, and the supporting legs of this trapezoidal structure can improve the area of contact of supporting legs and placing surface greatly, and then improves the stability of sampler body when placing greatly.

Preferably, the lower extreme of supporting legs is provided with the damping skid resistant course, and the damping skid resistant course is the silicon rubber pad, has damping frictional property, is provided with the raised reticulation of antiskid in its lower surface moreover, can improve the stability of placing of sampler body.

Preferably, the piston cylinder is located at the position of the transverse central axis of the sampling hose, and when the return spring is pulled back, the pull-back force can be stably applied to the extrusion clamping cylinder, so that the rapidity of the extrusion clamping cylinder in retraction is ensured, and the extrusion efficiency of the sampling hose is ensured.

Compared with the prior art, the beneficial effects of the utility model are that:

the clamping cylinder is pressed through the symmetrical bouncing type arranged on the gas storage tank, so that symmetrical type extrusion on the whole sampling hose is realized, the direct mode of hand extrusion is avoided, the effect of extrusion exhaust is reduced, the exhaust efficiency of residual natural gas in the gas storage tank is greatly improved, and the waste of residual natural gas is avoided.

Through the supporting legs that sets up the trapezoidal structure at the lower extreme of connecting rod to set up damping skid resistant course structure in the bottom of supporting legs, when not using the sampler body, realized that the convenient vertical of sampler body is placed on the workstation, effectively improved the stability of placing of sampler body, avoided the sampler body to lie down the instability of placing wantonly.

Drawings

FIG. 1 is a three-dimensional perspective view of the overall structure of the present invention;

fig. 2 is an overall structure front view of the present invention;

fig. 3 is an enlarged view of a point a in fig. 2 according to the present invention;

fig. 4 is a bottom view of the symmetrical spring-up type pressing cartridge of the present invention.

In the figure: 1 sampler body, 11 gas holders, 12 sample hoses, 13 sampling heads, 2 fixing seats, 3 connecting rods, 4 supporting legs, 41 damping anti-skid layers, 5 piston cylinders, 51 square slide holes, 52 guide slide grooves, 6 telescopic rods, 61 guide slide blocks, 7 extrusion clamping cylinders, 71 soft pads and 8 return springs.

Detailed Description

Referring to fig. 1, 2, 3 and 4, a liquefied natural gas sampler includes a sampler body 1 and two extrusion clamping cylinders 7 disposed at two sides of the sampler body 1, the sampler body 1 includes a gas storage tank 11, a sampling hose 12 and a sampling head 13, fixing bases 2 are welded on outer walls of two ends of the gas storage tank 11, a connecting rod 3 is welded at a lower end of the fixing base 2, a piston cylinder 5 is welded at one end of the connecting rod 3 facing the sampling hose 12, the piston cylinder 5 is located at a horizontal central axis of the sampling hose 12, a telescopic rod 6 is slidably sleeved in the piston cylinder 5, one end of the telescopic rod 6 facing the sampling hose 12 is fixedly welded with the extrusion clamping cylinders 7, the two extrusion clamping cylinders 7 and the two fixing bases 2 are respectively arranged symmetrically with a overlooking vertical central axis of the gas storage tank 11 as a center, a square sliding hole 51 and a guide sliding groove 52 are disposed in the piston cylinder 5, a guide block 61 is, the telescopic rod 6 penetrates through the square sliding hole 51 and is in sliding connection with the guide sliding groove 52 through the guide sliding block 61, the return spring 8 is welded between the guide sliding block 61 and the guide sliding groove 52, and the soft pad 71 is bonded on the inner side wall, facing the sampling hose 12, of the extrusion clamping cylinder 7.

Referring to fig. 1, 2, 3, and 4, the top cross section of the pressing clamping cylinder 7 is a semi-arc structure, and the shape of the semi-arc structure matches with the shape of the outer ring of the top circular cross section of the sampling hose 12, and the vertical dimension of the pressing clamping cylinder 7 is not smaller than the vertical dimension of the sampling hose 12.

Referring to fig. 1 and 2, the lower end of the connecting rod 3 is welded with a supporting leg 4, the lateral cross section of the supporting leg 4 is a trapezoidal structure, and the lower end of the supporting leg 4 is bonded with a damping anti-skid layer 41 through resin adhesive.

The working principle of the scheme is as follows: after the sample detection is finished, the sample natural gas in the gas storage tank 11 is discharged, after the sample natural gas is discharged, some sample natural gas can be remained in the gas storage tank 11, in order to avoid waste, at the moment, one hand can simultaneously hold the outer wall surfaces of the two side extrusion clamping cylinders 7 and extrude the two side extrusion clamping cylinders 7 to simultaneously and oppositely move and approach the two side extrusion clamping cylinders 7, the telescopic rod 6 is driven to slide along the square sliding hole 51, the guide sliding block 61 is driven to slide along the guide sliding groove 52, at the moment, the reset spring 8 is in stretching deformation, at the moment, the two side extrusion clamping cylinders 7 can simultaneously and integrally extrude the sampling hose 12, then the extrusion clamping cylinders 7 are not pressed, at the moment, the pulled reset spring 8 can pull back, contract and reset, the two side extrusion clamping cylinders 7 are driven to reset rapidly, then the extrusion clamping cylinders 7 are pressed again, so that the sampling hose 12 is continuously extruded, and, realized carrying out the symmetrical formula extrusion to whole sample hose 12, avoided directly through the mode of hand extrusion reducing the carminative effect of extrusion to improved the exhaust efficiency to remaining natural gas in the gas holder 11 greatly, avoided remaining natural gas's waste.

When not using sampler body 1, through the supporting legs 4 of the trapezoidal structure of bilateral symmetry, can be with the convenient vertical placing on the workstation of sampler body 1, the stable antiskid nature when supporting legs 4 bottom's damping skid resistant course 41 can improve sampler body 1 greatly and place has improved the stability of placing of sampler body 1 moreover, has avoided sampler body 1 to lie down the instability of placing wantonly.

Claims

1. The utility model provides a liquefied natural gas sampler, includes sampler body (1) to and locate an extrusion card section of thick bamboo (7) of sampler body (1) both sides, its characterized in that: sampler body (1) includes gas holder (11), sample hose (12), sampling head (13), be provided with fixing base (2) on the both ends outer wall of gas holder (11), the lower extreme of fixing base (2) is provided with connecting rod (3), the lower extreme of connecting rod (3) is provided with supporting legs (4), the lower extreme of supporting legs (4) is provided with damping skid resistant course (41), connecting rod (3) are provided with piston cylinder (5) towards the one end of sample hose (12), sliding sleeve is equipped with telescopic link (6) in piston cylinder (5), telescopic link (6) are fixed to be set up with an extrusion card section of thick bamboo (7) towards the one end of sample hose (12), be provided with soft pad (71) on the inside wall of an extrusion card section of thick bamboo (7) towards sample hose (12).

2. The lng sampler of claim 1, wherein: the piston cylinder (5) is internally provided with a square sliding hole (51) and a guide sliding groove (52), one end of the telescopic rod (6) far away from the extrusion clamping cylinder (7) is provided with a guide sliding block (61), the telescopic rod (6) penetrates through the square sliding hole (51) and is in sliding connection with the guide sliding groove (52) through the guide sliding block (61), and a reset spring (8) is arranged between the guide sliding block (61) and the guide sliding groove (52).

3. The lng sampler of claim 1, wherein: the number of the extrusion clamping cylinders (7) and the number of the fixing seats (2) are respectively two, and the extrusion clamping cylinders and the fixing seats are symmetrically arranged by taking the overlooking vertical central axis of the air storage tank (11) as a center.

4. The lng sampler of claim 1, wherein: the overlooking section of the extrusion clamping cylinder (7) is of a semi-arc structure, and the shape of the semi-arc structure is matched with the shape of an outer ring of the overlooking circular section of the sampling hose (12).

5. The lng sampler of claim 1, wherein: the vertical size of the extrusion clamping cylinder (7) is not less than that of the sampling hose (12).

6. The lng sampler of claim 1, wherein: the lateral cross section of the supporting leg (4) is of a trapezoidal structure.

7. The lng sampler of claim 1, wherein: the piston cylinder (5) is positioned at the transverse central axis of the sampling hose (12).