Sampling cooler for hydrogen production from natural gas

Abstract

The utility model relates to the technical field of hydrogen sampling coolers, in particular to a sampling cooler for hydrogen production from natural gas, which comprises a top plate with a plurality of supporting legs fixedly mounted at the bottom, a lifting plate capable of being adjusted in a lifting manner is arranged below the top plate, and an outer telescopic heat insulation pipe is connected between the top plate and the lifting plate. The center of the outer telescopic heat insulation pipe is sleeved with an inner telescopic heat exchange pipe, the bottom end of the inner telescopic heat exchange pipe is connected with a hydrogen inlet pipe fixedly communicated with the lifting plate, the top of the inner telescopic heat exchange pipe is connected with a hydrogen outlet pipe fixedly communicated with the top plate, and the top of the hydrogen outlet pipe is detachably connected with a sampling barrel. A hydrogen channel is formed by the inner telescopic heat exchange pipe, the hydrogen inlet pipe and the hydrogen outlet pipe, and a cooling heat exchange cavity is formed in the position, located between the top plate and the lifting plate, between the outer telescopic heat insulation pipe and the inner telescopic heat exchange pipe. The hydrogen sampling speed is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydrogen sampling cooler technical field, specifically is a kind of sampling cooler for natural gas hydrogen production. BACKGROUND

[0002] Natural gas hydrogen production is a method that uses natural gas as raw material to produce high-purity hydrogen. Natural gas hydrogen production technology has been relatively mature and is widely used in industrial fields. Although the production cost is high, it is still considered an important hydrogen production method due to its technical maturity and reliability. In the future, with the progress of technology and the reduction of cost, natural gas hydrogen production is expected to be applied in a wider field. During the natural gas hydrogen production process, the hydrogen needs to be cooled by a sampling cooler. After searching, a patent with publication number CN221055335U discloses a sampling cooler for natural gas hydrogen production, which includes a rack provided at the output port of a PSA separator, a storage cylinder and a sampling bottle connected to the rack; a relay mechanism is provided in the storage cylinder, and a pump set is provided on the rack; pump A of the pump set extracts hydrogen from the PSA separator to the storage cylinder, the relay mechanism spirally controls the wind and applies a circulating refrigeration operation, and when the relay mechanism operates for a certain period of time, the hydrogen is uniformly cooled, pump B of the pump set extracts a certain amount of hydrogen from the storage cylinder to the sampling bottle. The remaining hydrogen in the storage cylinder is extracted back to the PSA separator by pump C of the pump set; the technology of the utility model realizes accurate control of the temperature of hydrogen through the synergistic effect of the refrigerator and the annular temperature controller. The refrigerator can quickly and stably reduce the temperature of hydrogen, and the annular temperature controller helps to maintain the hydrogen at the required low temperature state, ensuring the consistency of the temperature during sampling. Among them, the relay mechanism 5 spirally controls the wind and applies a circulating refrigeration operation, and when the relay mechanism 5 operates for a certain period of time, the hydrogen is uniformly cooled therein. However, due to the spiral wind control, the hydrogen sampling speed is reduced. Therefore, a sampling cooler for natural gas hydrogen production is designed to ensure the hydrogen sampling temperature at a certain temperature without reducing the hydrogen sampling speed, further improving the hydrogen sampling speed. SUMMARY

[0003] (I) Technical problem solved

[0004] In view of the shortcomings of the prior art, the utility model provides a sampling cooler for natural gas hydrogen production, which can ensure the hydrogen sampling temperature at a certain temperature without reducing the hydrogen sampling speed, further improving the hydrogen sampling speed.

[0005] (II) Technical solution

[0006] In order to achieve the above object, the utility model provides the following technical scheme: a natural gas hydrogen production is with sampling cooler, including the top plate of a plurality of support legs is fixedly installed in bottom, the bottom of top plate is provided with the lifting plate of adjustable lifting, be provided with between top plate and lifting plate outer telescopic heat insulation pipe, the centre of outer telescopic heat insulation pipe is equipped with inner telescopic heat exchange pipe, the bottom of inner telescopic heat exchange pipe is provided with hydrogen inlet pipe with lifting plate fixed communication, the top of inner telescopic heat exchange pipe is provided with hydrogen outlet pipe with top plate fixed communication, the top of hydrogen outlet pipe is detachably connected with sampling cylinder, inner telescopic heat exchange pipe, hydrogen inlet pipe and hydrogen outlet pipe form hydrogen passage, the position between outer telescopic heat insulation pipe and inner telescopic heat exchange pipe between top plate and lifting plate is provided with cooling heat exchange chamber, the top of top plate still includes the cooling mechanism of cooling liquid supply for cooling heat exchange chamber.

[0007] Preferably, it also includes the lifting mechanism for adjusting the height of lifting plate, the lifting mechanism includes the screw rod of vertical rotation connection in the bottom of top plate, the threaded block of screw thread connection is fixedly installed on the lifting plate, the top plate still includes the driving piece of driving screw rotation, lifting plate and a plurality of support legs between lifting guide sliding fit.

[0008] Preferably, the driving piece includes the adjusting motor of fixed installation on the top plate, the output shaft of adjusting motor and the top end of screw rod are fixedly connected.

[0009] Preferably, the cooling mechanism includes the cooling liquid tank of fixed installation on the top plate, the bottom of cooling liquid tank is fixedly communicated with the top of cooling heat exchange chamber through the communication pipe, the inside sealed sliding fit of cooling liquid tank has the floating plate with cooling liquid filling pipe.

[0010] Preferably, the top of cooling liquid tank is fixedly installed with the limiting ring.

[0011] Preferably, the valve is installed on hydrogen inlet pipe, hydrogen outlet pipe, sampling cylinder and cooling liquid filling pipe, and hydrogen outlet pipe is also fixedly installed with hydrogen temperature table.

[0012] (Three) beneficial effects

[0013] Compared with the prior art, the utility model provides a kind of natural gas hydrogen production is with sampling cooler, with following beneficial effects:

[0014] The natural gas hydrogen production sampling cooler, through the setting of the outer telescopic heat insulation pipe, the inner telescopic heat exchange pipe, the top plate and the lifting plate, conveniently makes the hydrogen gas passage and the cooling heat exchange chamber length telescopic, and then can prolong the cooling heat exchange length, so that the certain sampling temperature of the hydrogen gas is ensured, through the cooling mechanism, the sufficiency of the cooling liquid in the cooling heat exchange chamber is conveniently ensured, through the sampling cylinder, the hydrogen gas is conveniently sampled, the natural gas hydrogen production sampling cooler is convenient for ensuring the hydrogen gas sampling temperature at a certain temperature while not reducing the hydrogen gas sampling speed, and further improves the hydrogen gas sampling speed. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is a structure schematic diagram of the whole decomposition of the partial section of the utility model;

[0016] Fig. 2 It is a structure schematic diagram of the whole of the utility model;

[0017] Fig. 3 It is a structure schematic diagram of the whole of the utility model.

[0018] Markings in the drawings: 1, top plate;2, lifting plate;3, outer telescopic heat insulation pipe;4, inner telescopic heat exchange pipe;5, hydrogen gas inlet pipe;6, hydrogen gas outlet pipe;7, sampling cylinder;8, cooling liquid tank;9, communication pipe;10, floating plate;11, cooling liquid filling pipe;12, limiting ring;13, valve;14, hydrogen gas temperature table;15, screw;16, threaded block;17, adjusting motor;18, supporting leg. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model, and apparently, the described embodiments only are a part of the embodiments of the utility model, instead of all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the range of protection of the utility model.

[0020] Embodiment:

[0021] Please refer to Figs. 1-3The utility model provides a sampling cooler for hydrogen production of natural gas, including the top plate 1 of a plurality of support legs 18 is fixedly installed with bottom, the bottom of top plate 1 is provided with liftable adjustment's lifting plate 2, top plate 1 is fixedly connected with the outer telescopic heat insulation pipe 3 between lifting plate 2, the center of outer telescopic heat insulation pipe 3 is equipped with the inner telescopic heat exchange pipe 4, the bottom of inner telescopic heat exchange pipe 4 is fixedly connected with hydrogen inlet pipe 5 with the fixed intercommunication of lifting plate 2, the top of inner telescopic heat exchange pipe 4 is fixedly connected with hydrogen outlet pipe 6 with the fixed intercommunication of top plate 1, the top of hydrogen outlet pipe 6 is detachably connected with sampling cylinder 7, and inner telescopic heat exchange pipe 4, hydrogen inlet pipe 5 and hydrogen outlet pipe 6 form hydrogen passage, and the position between top plate 1 and lifting plate 2 between outer telescopic heat insulation pipe 3 and inner telescopic heat exchange pipe 4 is provided with cooling heat exchange chamber, and the top of top plate 1 still includes the cooling mechanism for the cooling heat exchange chamber of cooling liquid, through the setting of outer telescopic heat insulation pipe 3, inner telescopic heat exchange pipe 4, top plate 1 and lifting plate 2, it is convenient to make hydrogen passage and cooling heat exchange chamber length telescopic, and further can extend cooling heat exchange length, to ensure the sampling temperature of hydrogen gas at a certain temperature, through cooling mechanism, it is convenient to ensure the adequacy of cooling liquid in cooling heat exchange chamber, through sampling cylinder 7, it is convenient to sample hydrogen, and the sampling cooler for hydrogen production of natural gas is convenient to ensure the sampling temperature of hydrogen gas at a certain temperature while not reducing hydrogen sampling speed, further improves hydrogen sampling speed, further, the sampling cylinder 7 can be screwed on hydrogen outlet pipe 6, further, the outer telescopic heat insulation pipe 3 can adopt heat conduction metal pipe that is coated with heat insulation coating inside and outside.

[0022] Further include the lifting mechanism for adjusting the height of lifting plate 2, and the lifting mechanism includes the screw rod 15 that is vertically rotatably connected at the bottom of top plate 1, the screw block 16 that is fixedly installed on lifting plate 2 is threadedly connected with screw rod 15, and the driving part that drives screw rod 15 to rotate is further included on top plate 1, lifting plate 2 and a plurality of support legs 18 are guided and slidably fitted between lifting, the output shaft of driving part is rotated clockwise or counterclockwise, so that screw rod 15 can be rotated clockwise or counterclockwise, and then thread block 16 and lifting plate 2 are driven to ascend or descend as a whole, and the length of outer telescopic heat insulation pipe 3 and inner telescopic heat exchange pipe 4 is shortened or lengthened synchronously when ascending or descending.

[0023] The driving part includes the adjusting motor 17 that is fixedly installed on top plate 1, the output shaft of adjusting motor 17 is fixedly connected with the top end of screw rod 15, adjusting motor 17 is started, and the output shaft of adjusting motor 17 is rotated clockwise or counterclockwise, so that screw rod 15 can be rotated clockwise or counterclockwise.

[0024] The cooling mechanism comprises a cooling liquid tank 8 fixedly installed on the top plate 1, the bottom of the cooling liquid tank 8 is fixedly communicated with the top of the cooling heat exchange chamber through a communicating pipe 9, the inside of the cooling liquid tank 8 is slidingly fitted with a floating plate 10 with a cooling liquid filling pipe 11, further comprising a refrigerating machine fixedly communicated with the cooling liquid filling pipe 11, the model of the refrigerating machine can be matched and selected according to the flow rate and temperature of the hydrogen, the refrigerating machine can conveniently provide cooling liquid between the floating plate 10 and the inner bottom of the cooling liquid tank 8 through the cooling liquid filling pipe 11, and then the cooling liquid can be communicated with the cooling heat exchange chamber through the communicating pipe 9, so that the floating plate 10 can be lifted and lowered correspondingly with the expansion and contraction of the cooling heat exchange chamber.

[0025] The top of the cooling liquid tank 8 is fixedly installed with a limiting ring 12, through the limiting ring 12, the lifting height of the floating plate 10 can be limited to avoid its disengagement from the cooling liquid tank 8.

[0026] Valves 13 are installed on the hydrogen inlet pipe 5, the hydrogen outlet pipe 6, the sampling cylinder 7 and the cooling liquid filling pipe 11, and a hydrogen temperature gauge 14 is fixedly installed on the hydrogen outlet pipe 6, through the hydrogen temperature gauge 14, the temperature of the sampled hydrogen can be measured conveniently, and through the valves 13, the flow can be conveniently cut off.

[0027] In use, the hydrogen inlet pipe 5 is communicated with the PSA separator, then the hydrogen enters the inner telescopic heat exchange pipe 4 through the hydrogen inlet pipe 5, exchanges heat with the cooling liquid in the cooling heat exchange chamber through the inner telescopic heat exchange pipe 4, and then is sent into the sampling cylinder 7 through the hydrogen outlet pipe 6, when the temperature is not enough or is too low, the length of heat exchange of the hydrogen can be adjusted by extending or lowering the height of the whole of the outer telescopic heat insulation pipe 3 and the inner telescopic heat exchange pipe 4, so as to adjust the sampling temperature of the hydrogen to meet the standard without affecting the flow rate.

[0028] It should be noted that the "one embodiment", "embodiment", "exemplary embodiment", "some embodiments" and the like mentioned in the specification represent that the described embodiment can include a particular feature, structure or characteristic, but not necessarily every embodiment. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when a particular feature, structure or characteristic is described in connection with an embodiment, it is within the knowledge of those skilled in the art to implement such a feature, structure or characteristic in connection with other embodiments whether explicitly described or not.

[0029] It should be readily understood that "on," "over," and "above" in the present disclosure are to be interpreted in the broadest context, such that "on" means not only "directly on" but also includes the meaning of "on" with intermediate features or layers therebetween, and "over" or "above" includes not only the meaning of "over" or "above" but also the meaning of "over" or "above" with no intermediate features or layers therebetween (i.e., directly on).

[0030] In addition, spatially relative terms, such as "beneath", "below", "lower", "above", "upper", and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. The spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. The devices can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0031] It should be noted that the terms "first", "second", and the like, as can be used herein do not necessarily have an either chronological or spatial relationship, but can be used to differentiate one element from another. Moreover, the terms "comprise", "include", or "contain" or any variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises, includes or contains a list of elements is not necessarily limited to those elements, but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a", "includes... a", or "contains... a", does not, without more constraints, foreclose the existence of additional identical elements.

[0032] Finally, it should be noted that the above-described embodiments are merely intended for describing and illustrating, but not limiting, the technical solutions of the present application; even though the present application has been described in detail with reference to the above-described embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the above-described embodiments, or equivalently replace some or all of the technical features thereof; and such modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A sample cooler for hydrogen production from natural gas, characterized by: The utility model provides a hydrogen gas sampling device, including the top plate (1) of bottom fixed mounting has a plurality of support leg (18), the bottom of top plate (1) is provided with the lifting plate (2) of adjustable lifting, be provided with the outer telescopic heat insulation pipe (3) between top plate (1) and lifting plate (2), the center of outer telescopic heat insulation pipe (3) is equipped with the inner telescopic heat exchange pipe (4), the bottom of inner telescopic heat exchange pipe (4) is provided with the hydrogen inlet pipe (5) of fixed communication with lifting plate (2), the top of inner telescopic heat exchange pipe (4) is provided with the hydrogen outlet pipe (6) of fixed communication with top plate (1), the top of hydrogen outlet pipe (6) is detachably connected with sampling cylinder (7), inner telescopic heat exchange pipe (4), hydrogen inlet pipe (5) and hydrogen outlet pipe (6) form hydrogen channel, be provided with cooling heat exchange chamber between outer telescopic heat insulation pipe (3) and inner telescopic heat exchange pipe (4) between top plate (1) and lifting plate (2), the top of top plate (1) still includes the cooling mechanism of cooling liquid for cooling heat exchange chamber.

2. The sample cooler for hydrogen production from natural gas according to claim 1, characterized in that: Still include the lifting mechanism for adjusting the height of lifting plate (2), the lifting mechanism includes the screw rod (15) of vertical rotation connection in the bottom of top plate (1), the threaded block (16) of fixed installation is provided with with screw rod (15) screw connection on lifting plate (2), top plate (1) still includes the driving piece of driving screw rod (15) rotation, lifting plate (2) and a plurality of support leg (18) between lifting guide sliding fit.

3. The sample cooler for hydrogen production from natural gas according to claim 2, characterized in that: The driving piece includes the adjusting motor (17) of fixed installation in top plate (1), the output shaft of adjusting motor (17) is fixedly connected with the top end of screw rod (15).

4. The sample cooler for hydrogen production from natural gas according to claim 3, characterized in that: The cooling mechanism includes the cooling liquid tank (8) of fixed installation in top plate (1), the bottom of cooling liquid tank (8) is fixedly communicated with the top of cooling heat exchange chamber through the communication pipe (9), the inside sealed sliding fit of cooling liquid tank (8) has the floating plate (10) with cooling liquid filling pipe (11).

5. The sample cooler for hydrogen production from natural gas according to claim 4, characterized in that: The top of cooling liquid tank (8) is fixedly installed with the limit ring (12).

6. The sample cooler for hydrogen production from natural gas according to claim 5, characterized in that: Valve (13) is installed on hydrogen inlet pipe (5), hydrogen outlet pipe (6), sampling cylinder (7) and cooling liquid filling pipe (11), and hydrogen outlet pipe (6) is also fixedly installed with hydrogen temperature table (14).

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