CN208365195U - Low-temperature liquefied gas storage tank gas concentration unit - Google Patents
Low-temperature liquefied gas storage tank gas concentration unit Download PDFInfo
- Publication number
- CN208365195U CN208365195U CN201820732413.2U CN201820732413U CN208365195U CN 208365195 U CN208365195 U CN 208365195U CN 201820732413 U CN201820732413 U CN 201820732413U CN 208365195 U CN208365195 U CN 208365195U
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- storage tank
- liquefied gas
- gas
- low
- connecting tube
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Abstract
The utility model discloses low-temperature liquefied gas storage tank gas concentration units, including storage tank, the bottom of the storage tank is welded with pedestal, the inner wall of storage tank is equipped with pressure transmitter, through-hole is offered on storage tank, through-hole internal screw thread is connected with valve port attachment base, the top preset of storage tank has the second safety valve, valve port attachment base internal screw thread is connected with connecting tube, the other end of connecting tube is fixedly connected with air bathing gasifier, the outlet of air bathing gasifier is equipped with delivery pipe, delivery pipe is fixedly connected with membrane compressor far from one end of air bathing gasifier, the output end of membrane compressor is equipped with guide pipe, the first safety valve is equipped in the pipeline of guide pipe, guide pipe is fixedly connected with gas cylinders group far from one end of membrane compressor, the utility model ensures recycling of the liquefied gas at low temp in storage tank, and removal process safely may be used It leans on, ensure that the own quantity of liquefied gas, and reduce loss.
Description
Technical field
The utility model relates to tank for liquefied gas technical field more particularly to low-temperature liquefied gas storage tank gas recycling dresses
It sets.
Background technique
Under the prior art, the liquefied gas at low temp as liquid oxygen, liquid nitrogen, liquid argon is usually to pass through cryogenic liquid storage tank
It being stored, the fluid temperature of tank inside is -190 DEG C to -193 DEG C, currently, storage tank can not accomplish absolute heat preservation, because
This liquid, which is long-term stored in such be easy, will occur liquid gasification, and pressure of storage tank raising, safety valve jumping up cause gas
Emptying, not only dangerous but also waste gas, and such loss can become larger with the process of time, if storage tank cold insulation is imitated
Fruit is bad, and loss may be bigger.
Utility model content
Purpose of the utility model is to solve disadvantages existing in the prior art, and the liquefied gas at low temp storage proposed
Tank gas concentration unit.
To achieve the goals above, the utility model adopts the technical scheme that
Low-temperature liquefied gas storage tank gas concentration unit, including storage tank, the bottom of the storage tank are welded with pedestal, storage tank
Inner wall is equipped with pressure transmitter, and through-hole is offered on storage tank, and through-hole internal screw thread is connected with valve port attachment base, and the top of storage tank is pre-
Equipped with the second safety valve, valve port attachment base internal screw thread is connected with connecting tube, and the other end of connecting tube is fixedly connected with air bath
Gasifier, the outlet of air bathing gasifier are equipped with delivery pipe, and the one end of delivery pipe far from air bathing gasifier is fixed to be connected
It is connected to membrane compressor, the output end of membrane compressor is equipped with guide pipe, the first safety is equipped in the pipeline of guide pipe
Valve, guide pipe are fixedly connected with gas cylinders group far from one end of membrane compressor.
Preferably, the bottom of the membrane compressor is exported equipped with compressed gas, and outlet is threaded with safety valve,
The other end of safety valve extends to the inside of gas cylinders group.
Preferably, the air bathing gasifier is threadedly coupled with connecting tube, and air bathing gasifier and connecting tube
Threaded connection place is coated with sealant.
Preferably, the outside of the membrane compressor is equipped with motor, and is equipped with braking on membrane compressor and opens
It closes, and brake switch is connected to the output end of motor.
The beneficial effects of the utility model are:
Pressure transmitter and membrane compressor control cabinet are interlocked, the highest and lowest limit of pressure of storage tank is set, when
When storage tank reaches highest setting pressure, pressure signal is switched to electric signal by pressure transmitter, and motor work guarantees to open automatically in this way
Open membrane compressor, in whole process, gas is constantly compressed (pressurization) and is filled in gas cylinders group in storage tank, works as tank inner pressure
When reaching lower bound setting pressure, makes stopping compressor by oneself, ensure that the pressure in storage tank is all not up to storage always in this way
The release pressure of second safety valve on tank, has achieved the purpose that gas recovery, and the present apparatus ensures liquefied gas at low temp in storage tank
In recycling, and removal process is safe and reliable, ensure that the own quantity of liquefied gas, and reduces loss.
Detailed description of the invention
Fig. 1 be the utility model proposes low-temperature liquefied gas storage tank gas concentration unit structural schematic diagram；
Fig. 2 be the utility model proposes low-temperature liquefied gas storage tank gas concentration unit membrane compressor install knot
Structure schematic diagram.
In figure: 1 storage tank, 2 pedestals, 3 pressure transmitters, 4 valve port attachment bases, 5 gas cylinders groups, 6 first safety valves, 7 diaphragm types
Compressor, 8 delivery pipes, 9 air bathing gasifiers, 10 connecting tubes, 11 motor, 12 second safety valves, 13 guide pipes.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.
Referring to Fig.1-2, low-temperature liquefied gas storage tank gas concentration unit, including storage tank 1, the bottom of storage tank 1 are welded with bottom
Seat 2, the inner wall of storage tank 1 is equipped with pressure transmitter 3, and through-hole is offered on storage tank 1, and through-hole internal screw thread is connected with valve port attachment base
4, the top preset of storage tank 1 has the second safety valve 12, and 4 internal screw thread of valve port attachment base is connected with connecting tube 10, connecting tube 10 it is another
One end is fixedly connected with air bathing gasifier 9, and the outlet of air bathing gasifier 9 is equipped with delivery pipe 8, and delivery pipe 8 is separate
One end of air bathing gasifier 9 is fixedly connected with membrane compressor 7, and the output end of membrane compressor 7 is equipped with guiding
Pipe 13, the pipeline of guide pipe 13 is interior to be equipped with the first safety valve 6, and guide pipe 13 is fixedly connected far from one end of membrane compressor 7
There is gas cylinders group 5, the bottom of membrane compressor 7 is exported equipped with compressed gas, and outlet is threaded with the first safety valve 6, the
The other end of one safety valve 6 extends to the inside of gas cylinders group 5, and air bathing gasifier 9 is threadedly coupled with connecting tube 10, and air
The threaded connection place of bathing gasifier 9 and connecting tube 10 is coated with sealant, and the outside of membrane compressor 7 is equipped with motor 11,
And brake switch is installed, and brake switch is connected to the output end of motor 11 on membrane compressor 7.
In the present embodiment, pressure transmitter 3 and 7 control cabinet of membrane compressor are interlocked, setting pressure of storage tank is most
High and minimum, when storage tank 1 reaches highest setting pressure, pressure signal is switched to electric signal by pressure transmitter 3, and electric signal is made
For brake switch, motor 11 is driven to work, in this way guarantee automatic opening membrane compressor 7, in whole process, in storage tank 1
Gas is constantly compressed (pressurization) and is filled in gas cylinders group 5, when pressure reaches lower bound setting pressure in storage tank 1, diaphragm type compression
Machine 7 stops working, and ensures that the pressure in storage tank 1 is all not up to of the second safety valve 12 on storage tank 1 always in this way
Pressure is jumped, has achieved the purpose that gas recovery, while in order to guarantee that the charge pressure of gas cylinders group 5 is no more than highest rated value, pressure
The outlet of contracting machine is provided with highest and shuts down facility and the first safety valve 6, and it is pressure switch, the inspection of the first safety valve 6 that highest, which shuts down facility,
Charge pressure is surveyed, once charge pressure is more than regulation, pressure switch can equally be acted on motor 11, will close motor 11.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (4)
1. low-temperature liquefied gas storage tank gas concentration unit, including storage tank (1), which is characterized in that weld the bottom of the storage tank (1)
It is connected to pedestal (2), the inner wall of storage tank (1) is equipped with pressure transmitter (3), and through-hole is offered on storage tank (1), and through-hole internal screw thread connects
It is connected to valve port attachment base (4), the top preset of storage tank (1) has the second safety valve (12), and valve port attachment base (4) internal screw thread is connected with
Connecting tube (10), the other end of connecting tube (10) are fixedly connected with air bathing gasifier (9), air bathing gasifier (9)
Outlet is equipped with delivery pipe (8), and delivery pipe (8) is fixedly connected with diaphragm type compression far from the one end of air bathing gasifier (9)
Machine (7), the output end of membrane compressor (7) are equipped with guide pipe (13), and the first safety is equipped in the pipeline of guide pipe (13)
Valve (6), guide pipe (13) are fixedly connected with gas cylinders group (5) far from the one end of membrane compressor (7).
2. low-temperature liquefied gas storage tank gas concentration unit according to claim 1, which is characterized in that the diaphragm type pressure
The bottom of contracting machine (7) equipped with compressed gas export, and outlet be threaded with the first safety valve (6), the first safety valve (6) it is another
One end extends to the inside of gas cylinders group (5).
3. low-temperature liquefied gas storage tank gas concentration unit according to claim 1, which is characterized in that the air bath
Gasifier (9) is threadedly coupled with connecting tube (10), and air bathing gasifier (9) and the threaded connection place of connecting tube (10) are coated with
Sealant.
4. low-temperature liquefied gas storage tank gas concentration unit according to claim 1, which is characterized in that the diaphragm type pressure
The outside of contracting machine (7) is equipped with motor (11), and brake switch is equipped on membrane compressor (7), and brake switch connects
It is connected to the output end of motor (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820732413.2U CN208365195U (en) | 2018-05-17 | 2018-05-17 | Low-temperature liquefied gas storage tank gas concentration unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820732413.2U CN208365195U (en) | 2018-05-17 | 2018-05-17 | Low-temperature liquefied gas storage tank gas concentration unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208365195U true CN208365195U (en) | 2019-01-11 |
Family
ID=64934930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820732413.2U Active CN208365195U (en) | 2018-05-17 | 2018-05-17 | Low-temperature liquefied gas storage tank gas concentration unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208365195U (en) |
-
2018
- 2018-05-17 CN CN201820732413.2U patent/CN208365195U/en active Active
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