CN216481834U - Nitrogen liquefaction device - Google Patents
Nitrogen liquefaction device Download PDFInfo
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- CN216481834U CN216481834U CN202122735235.3U CN202122735235U CN216481834U CN 216481834 U CN216481834 U CN 216481834U CN 202122735235 U CN202122735235 U CN 202122735235U CN 216481834 U CN216481834 U CN 216481834U
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Abstract
The utility model belongs to the technical field of nitrogen production and processing, and particularly relates to a nitrogen liquefying device. The nitrogen-containing liquefied gas liquefaction device comprises a liquefaction body, a hydraulic machine and a nitrogen transfer tank, wherein the liquefaction body consists of two parts, and the two parts comprise a medium-pressure nitrogen press and a liquefaction tank; the heat collecting device is arranged at the joint between the nitrogen transfer tank and the liquefaction body, the hydraulic machine is fixed on the outer side of the liquefaction tank and communicated with the liquefaction tank. The nitrogen liquefying device is high in working efficiency.
Description
Technical Field
The utility model belongs to the technical field of nitrogen production and processing, and particularly relates to a nitrogen liquefying device.
Background
The liquefying device is characterized in that when gas is diffused or the pressure of a pipe network is higher, the gas is cooled into liquid by the expansion refrigeration effect after the gas is pressurized, and the liquid is sent into a low-temperature liquid storage tank to be vaporized for preservation or sale. In order to ensure the safe and stable operation of the liquefying device, as nitrogen for pressurization and expansion, the pressure of the nitrogen entering the liquefying device is required to be kept in a constant pressure range, a medium-pressure nitrogen press needs to be operated, the pressure of the liquefying device after the nitrogen press is kept constant through a pipe network communicating valve, a medium-pressure nitrogen press needs to be started corresponding to one set of liquefying device, the currently operated liquefying devices are all in a mode that one medium-pressure nitrogen press is provided with one set of liquefying device, and the liquefying cost is greatly increased. In addition, in a mode that one medium-pressure nitrogen press is provided with a set of liquefying device, the whole device stops working once the liquefying device breaks down, and therefore the working efficiency is reduced.
To this end, we propose a nitrogen liquefaction plant.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a nitrogen liquefying device, which solves the problems that the working efficiency of the existing nitrogen liquefying device is low and the whole nitrogen liquefying device needs to be shut down once the nitrogen liquefying device fails in work.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:
a nitrogen liquefying device comprises a liquefying body, a hydraulic machine and a nitrogen transfer tank, wherein the liquefying body consists of two parts, and the two parts comprise a medium-pressure nitrogen press and the liquefying tank; the heat collecting device is arranged at the joint between the nitrogen transfer tank and the liquefaction body, the hydraulic machine is fixed on the outer side of the liquefaction tank and communicated with the liquefaction tank.
Further, a liquid outlet is formed in the bottom of the liquefaction tank and communicated with the bottom of the heat collection device.
Furthermore, a liquid inlet is formed in the top of the nitrogen transit tank and connected with the top of the heat collection device.
Further, a liquid outlet valve is arranged at the bottom of the nitrogen transfer tank.
Furthermore, a plurality of liquefying devices are arranged in the liquefying tank and distributed at equal intervals along the axis of the liquefying tank.
Further, a heat insulation layer is arranged at the bottom of the liquefaction tank.
Preferably, a flow dividing device is arranged at the bottom of the heat collecting device, and one end of the flow dividing device is communicated with the liquid outlet while the other end is communicated with the heat collecting device.
Preferably, the top of the heat collecting device is provided with a flow collecting device, one end of the flow collecting device is communicated with the heat collecting device, and the other end of the flow collecting device is communicated with the nitrogen transfer tank.
To sum up, owing to adopted above-mentioned technical scheme, utility model's beneficial technological effect is:
the medium-pressure nitrogen press disclosed by the utility model has the advantages that nitrogen passes through any one or more liquefying devices, then the hydraulic press above the liquefying devices is used for pressurizing the liquefying devices, so that the nitrogen is liquefied, and finally, a liquid outlet is formed in the bottom of a liquefying tank for leading out the nitrogen; in the whole process, a liquefaction mode that a plurality of sets of liquefaction devices are sleeved on one medium-pressure nitrogen compressor is adopted, so that the liquefaction cost is greatly reduced; when one liquefying device breaks down, other liquefying devices can work normally, so that the nitrogen liquefying work is uninterrupted, and the working efficiency is greatly improved; by adopting the double-pressurization design of the medium-pressure nitrogen press and the hydraulic press, the pressure requirement of the liquefaction device can be well guaranteed to be within a constant pressure range, the safe and stable operation of the liquefaction device is guaranteed, and the safety is good.
In addition, the junction between nitrogen transfer tank and the liquefaction body is equipped with heat collection device, and heat collection device can prevent to freeze in a large number between nitrogen transfer tank and the liquefaction body, leads to the later stage maintenance inconvenient and influences the normal use of whole liquefaction device.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a front view of the present invention.
Fig. 3 is a left side view of fig. 2 according to the present invention.
Fig. 4 is a top view of fig. 2 of the present invention.
In the figure: the device comprises a liquefaction body 1, a hydraulic machine 2, a nitrogen transfer tank 3, a heat collection device 4, a liquid outlet 5, a flow dividing device 6, a flow collecting device 7, a liquid outlet valve 8, a medium-pressure nitrogen press 9, a liquefaction tank 10 and a liquefaction device 11.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
Example 1
In the embodiment, the nitrogen liquefying device comprises a liquefying body 1, a hydraulic machine 2 and a nitrogen transfer tank 3, wherein the liquefying body 1 consists of two parts, and the two parts comprise a medium-pressure nitrogen press 9 and a liquefying tank 10; the heat collecting device 4 is arranged at the joint between the nitrogen transfer tank 3 and the liquefaction body 1, the hydraulic machine 2 is fixed on the outer side of the liquefaction tank 10, and the hydraulic machine 2 is communicated with the liquefaction tank 10; a liquid outlet 5 is formed in the bottom of the liquefaction tank 10, and the liquid outlet 5 is communicated with the bottom of the heat collecting device 4; the top of the nitrogen transit tank 3 is provided with a liquid inlet, and the liquid inlet is connected with the top of the heat collection device 4; and a liquid outlet valve 8 is arranged at the bottom of the nitrogen gas transfer tank 3.
The liquefaction tank 10 is internally provided with a plurality of liquefaction devices 11, and the plurality of liquefaction devices 11 are distributed at equal intervals along the axis of the liquefaction tank 10.
The bottom of the liquefaction tank 10 is provided with a heat insulation layer 12.
In the using process, the medium-pressure nitrogen press 9 leads the nitrogen to pass through any one or more liquefying devices 11, then the hydraulic machine 2 above the liquefying devices pressurizes the inside of the liquefying devices 11, so that the nitrogen is liquefied, and finally, the bottom of the liquefying tank is provided with a liquid outlet for leading out; in the whole process, a liquefaction mode that a plurality of sets of liquefaction devices are sleeved on one medium-pressure nitrogen compressor is adopted, so that the liquefaction cost is greatly reduced; when one liquefying device breaks down, other liquefying devices can work normally, so that the nitrogen liquefying work is uninterrupted, and the working efficiency is greatly improved; by adopting the double-pressurization design of the medium-pressure nitrogen press and the hydraulic press, the pressure requirement of the liquefaction device can be well guaranteed to be within a constant pressure range, the safe and stable operation of the liquefaction device is guaranteed, and the safety is good.
Example 2
In this embodiment, the bottom of the heat collecting device 4 is provided with a flow dividing device 6, one end of the flow dividing device 6 is communicated with the liquid outlet 5, the other end of the flow dividing device 6 is communicated with the heat collecting device 4, the flow dividing device 6 is used for guiding out the liquid nitrogen fractional path coming out from the liquid outlet 5, the top of the heat collecting device 4 is provided with a flow collecting device 7, one end of the flow collecting device 7 is communicated with the heat collecting device 4, the other end of the flow collecting device 7 is communicated with the nitrogen gas transit tank 3, and the flow collecting device 7 is used for concentrating the liquid nitrogen into a pipeline so as to re-concentrate the separated liquid nitrogen.
Heat collection device 4 can prevent to freeze in a large number between nitrogen gas transfer tank and the liquefaction body, leads to the later stage maintenance inconvenient and influence the normal use of whole liquefaction device.
The above description is not intended to limit the present invention, but rather, the present invention is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the present invention.
Claims (8)
1. The utility model provides a nitrogen gas liquefaction device, includes liquefaction body (1), hydraulic press (2), nitrogen gas transfer tank (3), its characterized in that: the liquefaction body (1) consists of two parts, and the two parts comprise a medium-pressure nitrogen compressor (9) and a liquefaction tank (10); the nitrogen gas transfer tank (3) and the liquefaction body (1) are connected with a heat collection device (4), the hydraulic machine (2) is fixed on the outer side of the liquefaction tank (10), and the hydraulic machine (2) is communicated with the liquefaction tank (10).
2. A nitrogen liquefaction plant as claimed in claim 1, characterised in that: the bottom of the liquefaction tank (10) is provided with a liquid outlet (5), and the liquid outlet (5) is communicated with the bottom of the heat collection device (4).
3. A nitrogen liquefaction plant as claimed in claim 1, characterised in that: the top of the nitrogen transit tank (3) is provided with a liquid inlet, and the liquid inlet is connected with the top of the heat collection device (4).
4. A nitrogen liquefaction plant as claimed in claim 1, characterised in that: and a liquid outlet valve (8) is arranged at the bottom of the nitrogen transfer tank (3).
5. A nitrogen liquefaction plant as claimed in claim 1, characterised in that: the liquefaction tank (10) inside be equipped with several liquefaction device (11), several liquefaction device (11) are along the equidistant distribution of axis of liquefaction tank (10).
6. A nitrogen liquefaction plant as claimed in claim 1, characterised in that: the bottom of the liquefaction tank (10) is provided with a heat insulation layer (12).
7. A nitrogen liquefaction plant as claimed in claim 1, characterised in that: the bottom of the heat collecting device (4) is provided with a flow dividing device (6), one end of the flow dividing device (6) is communicated with the liquid outlet (5), and the other end is communicated with the heat collecting device (4).
8. A nitrogen liquefaction plant as claimed in claim 1, characterised in that: the top of the heat collecting device (4) is provided with a flow collecting device (7), one end of the flow collecting device (7) is communicated with the heat collecting device (4), and the other end is communicated with the nitrogen transfer tank (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122735235.3U CN216481834U (en) | 2021-11-08 | 2021-11-08 | Nitrogen liquefaction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122735235.3U CN216481834U (en) | 2021-11-08 | 2021-11-08 | Nitrogen liquefaction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216481834U true CN216481834U (en) | 2022-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122735235.3U Active CN216481834U (en) | 2021-11-08 | 2021-11-08 | Nitrogen liquefaction device |
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|---|---|
| CN (1) | CN216481834U (en) |
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2021
- 2021-11-08 CN CN202122735235.3U patent/CN216481834U/en active Active
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