Liquefied natural gas flash steam recovery device

Abstract

The utility model discloses a liquefied natural gas flash steam recovery device, which relates to the technical field of flash steam recovery, and comprises a natural gas storage bottle and a mobile vehicle, the outer side of the natural gas storage bottle is provided with a control panel and a gas delivery pipe, and the upper end of the mobile vehicle is provided with a handrail, a condensing box, a water pump, a water tank and a storage tank; according to the liquefied natural gas flash steam recovery device, a protection structure is arranged at the upper end of a moving vehicle, in the moving process of the moving vehicle, when the interior of a protection box needs to be overhauled and maintained, a handheld block is moved, so that the handheld block drives a sliding block to move along the interiors of a sliding groove and a positioning groove till the end of the sliding block is separated from the interior of the positioning groove; the maintenance plate is separated along the interior of the maintenance opening through the handle, meanwhile, the hinge achieves the movable connection effect, the maintenance plate can be rapidly opened and closed, the protection box is used for daily protection, the storage tank is prevented from being collided, and safety is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to flash gas recovery technical field especially relates to a kind of liquefied natural gas flash gas recovery device. BACKGROUND

[0002] Liquefied natural gas as automobile, ship alternative fuel, not only can effectively reduce environmental pollution and alleviate the pressure brought by oil resource shortage, its low-temperature liquefied natural gas stored in LNG tank, is subjected to heat transfer of ambient temperature to occur gasification, LNG tank also produces a large amount of gaseous natural gas in liquid filling process, these gaseous natural gas is called flash, needs to be recovered, and then needs to use recovery device;

[0003] The existing recovery device is mostly mobile car and is moved to natural gas storage cylinder to recover flash steam, and at the same time, in order to keep the storage tank stable, it is installed by fixing belt to ensure its safety, but in the process of daily use, it cannot be avoided to be impacted, and thus its safety cannot be better ensured, and it does not have a protective structure, therefore, the utility model provides a kind of liquefied natural gas flash gas recovery device. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of the prior art, the utility model provides a kind of liquefied natural gas flash gas recovery device, solves the problems raised in the above background art.

[0005] To achieve the above object, the utility model is realized by the following technical scheme: a kind of liquefied natural gas flash gas recovery device, including natural gas storage cylinder and mobile car, the outside of the natural gas storage cylinder is provided with control panel and gas pipe, the upper end of the mobile car is provided with handrail, condensing tank, water pump, water tank and storage tank, the side of the storage tank is provided with gas pipeline, the upper end of the mobile car is provided with protective structure;

[0006] The protective structure includes protective box, the outside of the protective box is provided with access hole, the inside of the access hole is provided with access plate, the bottom of the access plate is provided with hinge, the inside of the access hole is provided with positioning groove, the outside of the access plate is provided with sliding slot, the inside of the sliding slot is provided with limit slot, the inside of the sliding slot is provided with sliding block, the outside of the sliding block is provided with hand block, limit block and support spring.

[0007] As a further technical scheme of the utility model, the control panel is connected with the natural gas storage cylinder by bolt, the bottom of the mobile car is provided with universal wheel, the handrail is fixedly connected between the mobile car, and the condensing tank is connected with the natural gas storage cylinder by gas pipe.

[0008] As a further technical scheme of the utility model, the condensing box and the water pump are connected through a pipeline, the water pump and the water tank are connected through a pipeline, and the storage tank and the air outlet pipeline are connected.

[0009] As a further technical scheme of the utility model, the protective box is provided with corresponding adaptive holes at the connection positions of the gas conveying pipe and the air outlet pipeline, the maintenance plate is adapted to the maintenance opening, and the two are connected through a hinge to form a movable connection.

[0010] As a further technical scheme of the utility model, the number of the sliding grooves is equal to that of the positioning grooves, and the two correspond to each other, the limiting grooves and the sliding grooves are connected, the sliding blocks are adapted to the positioning grooves and the sliding grooves, and the number of the sliding blocks is equal to that of the positioning grooves.

[0011] As a further technical scheme of the utility model, the sliding block and the handheld block are fixedly connected, the side edge of the handheld block is in an arc structure, the limiting block and the sliding block are fixedly connected, the limiting block is adapted to the limiting groove, and the two ends of the supporting spring are connected to the handheld block and the sliding groove.

[0012] The utility model provides a kind of liquefied natural gas flash gas recovery device.Compared with prior art, it has the following beneficial effects:

[0013] The design provides a kind of liquefied natural gas flash gas recovery device, by setting protective structure on the upper end of mobile car, when needing to be overhauled and maintained in the protective box during the movement of mobile car, by moving handheld block, the handheld block drives sliding block to move along the inside of sliding groove and positioning groove, until the end of sliding block is separated from the inside of positioning groove, by handle, maintenance plate is separated along the inside of maintenance opening, and hinge plays movable connection effect, maintenance plate can be quickly opened and closed, and protective box is protected daily, avoids that storage tank is bumped, and safety is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a kind of whole structure schematic diagram of liquefied natural gas flash gas recovery device;

[0015] Figure 2 It is a kind of side view of liquefied natural gas flash gas recovery device;

[0016] Figure 3 It is a kind of local split diagram of liquefied natural gas flash gas recovery device;

[0017] Figure 4 It is a kind of liquefied natural gas flash gas recovery device Figure 3Enlarged view of middle A.

[0018] In the figure: 1, natural gas cylinder; 2, control panel; 3, mobile car; 4, handrail; 5, condensing tank; 6, gas pipe; 7, water pump; 8, water tank; 9, storage tank; 10, gas pipeline; 11, protective structure; 111, protective box; 112, maintenance board; 113, maintenance opening; 114, hinge; 115, positioning groove; 116, sliding groove; 117, limiting groove; 118, sliding block; 119, handheld block; 1110, limiting block; 1111, supporting spring. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0020] Please refer to Figures 1-4 The utility model provides a kind of technical scheme of liquefied natural gas flash gas recovery device: a kind of liquefied natural gas flash gas recovery device, including natural gas cylinder 1 and mobile car 3, the outside of natural gas cylinder 1 is provided with control panel 2 and gas pipe 6, the upper end of mobile car 3 is provided with handrail 4, condensing tank 5, water pump 7, water tank 8 and storage tank 9, the side of storage tank 9 is provided with gas pipeline 10, the upper end of mobile car 3 is provided with protective structure 11;

[0021] Wherein, protective structure 11 includes protective box 111, the outside of protective box 111 is provided with maintenance opening 113, the inside of maintenance opening 113 is provided with maintenance board 112, the bottom of maintenance board 112 is provided with hinge 114, the inside of maintenance opening 113 is provided with positioning groove 115, the outside of maintenance board 112 is provided with sliding groove 116, the inside of sliding groove 116 is provided with limiting groove 117, the inside of sliding groove 116 is provided with sliding block 118, the outside of sliding block 118 is provided with handheld block 119, limiting block 1110 and supporting spring 1111.

[0022] As Figures 1-3 Indicated, control panel 2 is connected between natural gas cylinder 1 by bolt, the bottom of mobile car 3 is provided with universal wheel, handrail 4 is fixedly connected between mobile car 3, condensing tank 5 is connected between natural gas cylinder 1 by gas pipe 6, condensing tank 5 is connected between water pump 7 by pipeline, water pump 7 is connected between water tank 8 by pipeline, storage tank 9 and gas pipeline 10 are communicated, to facilitate the recovery operation of flash steam.

[0023] AsFigures 3-4 As shown, the protection box 111 is provided with corresponding adaptive holes at the connection of the gas conveying pipe 6 and the gas outlet pipe 10, the maintenance plate 112 is adapted to the maintenance opening 113, and the connection between the two is movably connected through the hinge 114, the number of the positioning grooves 115 is twice the number of the maintenance plate 112, the outer side of the maintenance plate 112 is provided with a handle, thereby facilitating the protection of the storage tank 9 at the upper end of the mobile vehicle 3, avoiding the collision of the storage tank 9, the number of the sliding grooves 116 is equal to the number of the positioning grooves 115, and the two are corresponding, the limiting groove 117 is connected between the sliding groove 116, the sliding block 118 is adapted to the positioning groove 115 and the sliding groove 116, the number of the sliding block 118 is equal to the number of the positioning groove 115, the sliding block 118 is fixedly connected with the handheld block 119, one side edge of the handheld block 119 is in an arc structure, the limiting block 1110 is fixedly connected with the sliding block 118, the limiting block 1110 is adapted to the limiting groove 117, and the two ends of the supporting spring 1111 are connected with the handheld block 119 and the sliding groove 116, thereby facilitating the positioning between the maintenance plate 112 and the maintenance opening 113.

[0024] The working principle of the utility model is as follows: during the use of the recovery device, the mobile vehicle 3 is moved to the natural gas storage cylinder 1, the gas conveying pipe 6 and the condensing box 5 are connected, the water pump 7 is used to pump the water in the water tank 8 into the handrail 4, and the water is recycled into the water tank 8, the flash gas passing through the handrail 4 is liquefied and stored in the storage tank 9, and the recovery of the flash gas is realized.

[0025] It should be noted that, by the setting of the protection structure 11, during the movement of the mobile vehicle 3, the protection box 111 is used for daily protection, avoiding the collision of the storage tank 9, when the protection box 111 needs to be maintained and maintained, the handheld block 119 is moved, the handheld block 119 drives the sliding block 118 to move along the inside of the sliding groove 116 and the positioning groove 115, the limiting block 1110 is driven to move along the inside of the limiting groove 117, and the supporting spring 1111 is compressed, until the end of the sliding block 118 is separated from the inside of the positioning groove 115, the handle is used to separate the maintenance plate 112 from the inside of the maintenance opening 113, and the hinge 114 is movably connected, so that the maintenance plate 112 can be quickly opened and closed.

[0026] The above is only the preferred embodiment of the utility model, and it should be pointed out that, for ordinary skilled persons in the art, without departing from the principle of the utility model, a number of improvements and refinements can be made, and these improvements and refinements should be regarded as the protection range of the utility model. The structures, devices and operation methods not specifically described and explained in the utility model are implemented according to the conventional means in the art, unless otherwise specified and limited.

Claims

1. A liquefied natural gas flash vapor recovery device, comprising a natural gas storage cylinder (1) and a mobile vehicle (3), characterized in that, The natural gas storage cylinder (1) is provided with a control panel (2) and a gas transmission pipe (6) on its outside. The upper end of the mobile vehicle (3) is provided with a handrail (4), a condensate box (5), a water pump (7), a water tank (8) and a storage tank (9). The storage tank (9) is provided with a gas outlet pipe (10) on one side. The upper end of the mobile vehicle (3) is provided with a protective structure (11). The protective structure (11) includes a protective box (111), an inspection port (113) is provided on the outside of the protective box (111), an inspection plate (112) is provided inside the inspection port (113), a hinge (114) is provided at the bottom of the inspection plate (112), a positioning groove (115) is provided inside the inspection port (113), a sliding groove (116) is provided on the outside of the inspection plate (112), a limiting groove (117) is provided inside the sliding groove (116), a slider (118) is provided inside the sliding groove (116), and a hand-held block (119), a limiting block (1110) and a support spring (1111) are provided on the outside of the slider (118).

2. The liquefied natural gas flash vapor recovery device according to claim 1, characterized in that, The control panel (2) is connected to the natural gas storage cylinder (1) by bolts. The bottom of the mobile vehicle (3) is equipped with casters. The handrail (4) is fixedly connected to the mobile vehicle (3). The condenser (5) is connected to the natural gas storage cylinder (1) by a gas transmission pipe (6).

3. The liquefied natural gas flash vapor recovery device according to claim 1, characterized in that, The condenser (5) is connected to the water pump (7) via a pipe, the water pump (7) is connected to the water tank (8) via a pipe, and the storage tank (9) is connected to the air outlet pipe (10).

4. A liquefied natural gas flash vapor recovery device according to claim 1, characterized in that, The protective box (111) is provided with corresponding adapter holes at the connection points of the gas supply pipe (6) and the gas outlet pipe (10). The inspection plate (112) is adapted to the inspection port (113), and the connection between the two is formed by a hinge (114). The number of positioning grooves (115) is twice the number of inspection plates (112). A handle is installed on the outside of the inspection plate (112).

5. A liquefied natural gas flash vapor recovery device according to claim 1, characterized in that, The number of the slide grooves (116) is equal to the number of the positioning grooves (115), and they correspond to each other. The limiting grooves (117) are connected to the slide grooves (116). The sliders (118) are adapted to both the positioning grooves (115) and the slide grooves (116). The number of sliders (118) is equal to the number of the positioning grooves (115).

6. A liquefied natural gas flash vapor recovery device according to claim 1, characterized in that, The slider (118) is fixedly connected to the hand block (119). One side edge of the hand block (119) has an arc-shaped structure. The limiting block (1110) is fixedly connected to the slider (118). The limiting block (1110) is adapted to the limiting groove (117). The two ends of the support spring (1111) are respectively connected to the hand block (119) and the slide groove (116).

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