CN210266691U - Filling system for low-pressure liquefied gas - Google Patents
Filling system for low-pressure liquefied gas Download PDFInfo
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- CN210266691U CN210266691U CN201921279399.6U CN201921279399U CN210266691U CN 210266691 U CN210266691 U CN 210266691U CN 201921279399 U CN201921279399 U CN 201921279399U CN 210266691 U CN210266691 U CN 210266691U
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Abstract
A filling system for low-pressure liquefied gas comprises a main pipe, an air inlet pipe, a discharge pipe, a pressure detection pipe, a filling pipe, a pressure regulating bottle, a pressure reducer, a system pressure regulating valve and a raw material tank; one end of the main pipe is communicated to the pressure regulating bottle; the pressure reducer is arranged on the main pipe and is positioned at the output end of the pressure regulating bottle; one end of the air inlet pipe is communicated with the main pipe, the end of the air inlet pipe is positioned at the rear end of the pressure reducer, and the other end of the air inlet pipe is communicated with an air inlet of the gas phase pipe in the raw material tank; one end of the discharge pipe is communicated to a liquid outlet of the liquid phase pipe in the raw material tank, and the other end of the discharge pipe is communicated to the main pipe; the gas phase pipe is provided with a gas phase valve, and the liquid phase pipe is provided with a liquid phase valve; the system pressure regulating valve is arranged on the main pipe and is positioned between the connection part of the air inlet pipe and the main pipe and the connection part of the discharge pipe and the main pipe; the utility model provides a fill dress system of low pressure liquefied gas according to above-mentioned content, its simple structure, low in production cost is fit for filling of low pressure liquefied gas.
Description
Technical Field
The utility model relates to a gas fills dress technical field, especially relates to a fill dress system of low pressure liquefied gas.
Background
The low-pressure liquefied gas is in a liquid state when filled and during storage and use at an allowable working temperature, and includes gases such as monochlorodifluoromethane, difluorochloromethane, difluorodichloromethane, difluorobromochloromethane, trifluorochloroethane, tetrafluorodichloroethane, pentafluorochloroethane, octafluorocyclobutane, hexafluoropropylene, chlorine, boron trichloride, phosgene, hydrogen fluoride, hydrogen bromide, sulfur dioxide, sulfuryl fluoride, nitrogen dioxide, hydraulic petroleum gas, propane, cyclopropane, propylene, n-butane, isobutane, 1-butene, isobutylene, cis-2-butene, trans-2-butene, R142b, R143a, R152a, chloroethane, dimethyl ether, ammonia, ethylamine, monomethylamine, dimethylamine, trimethylamine, methanethiol, hydrogen sulfide, chloromethane, bromomethane, arsine, vinyl chloride, ethylene oxide, vinyl methyl ether, and vinyl bromide.
When the existing filling equipment is used for filling low-pressure liquefied gas, a low-temperature pump or a membrane press and other power equipment are needed, the system structure is complex, the operation is troublesome, and when the traditional freezing method is used for filling the low-pressure liquefied gas, more refrigerants are consumed, the production cost is high, and the process is complex.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a filling system of low pressure liquefied gas, its simple structure, low in production cost is fit for filling of low pressure liquefied gas.
To achieve the purpose, the utility model adopts the following technical proposal:
a filling system for low-pressure liquefied gas comprises a main pipe, an air inlet pipe, a discharge pipe, a pressure detection pipe, a filling pipe, a pressure regulating bottle, a pressure reducer, a system pressure regulating valve and a raw material tank;
one end of the main pipe is communicated to the pressure regulating bottle;
the pressure reducer is arranged on the main pipe, and gas output from the pressure regulating bottle firstly passes through the pressure reducer and then enters the gas inlet pipe;
one end of the air inlet pipe is communicated with the main pipe, the end of the air inlet pipe is positioned at the rear end of the pressure reducer, and the other end of the air inlet pipe is communicated with an air inlet of the gas phase pipe in the raw material tank;
one end of the discharge pipe is communicated with a liquid outlet of the liquid phase pipe in the raw material tank,
the other end of the discharge pipe is communicated to the main pipe;
the gas phase pipe is provided with a gas phase valve, and the liquid phase pipe is provided with a liquid phase valve;
the system pressure regulating valve is arranged on the main pipe and is positioned between the connection part of the air inlet pipe and the main pipe and the connection part of the discharge pipe and the main pipe;
one end of the pressure detection pipe is communicated to the main pipe, and the other end of the pressure detection pipe is provided with a pressure gauge;
one end of the filling pipe is communicated to the main pipe, the other end of the filling pipe is a filling end, and the air inlet pipe and the filling pipe are respectively positioned on the left side and the right side of the discharge pipe.
Further, the gas outlet of the gas phase pipe faces the top of the inner wall of the raw material tank, and the liquid inlet of the liquid phase pipe faces the bottom of the inner wall of the raw material tank.
Further, the discharge pipe is provided with a discharge valve.
Further, the pressure detection pipe is provided with a pressure gauge valve.
Furthermore, the number of the filling pipes is at least two, and each filling pipe is provided with a filling valve.
The air conditioner further comprises an emptying pipe, wherein one end of the emptying pipe is communicated to the main pipe, and the emptying pipe is provided with an emptying valve.
The vacuum pipe is characterized by further comprising a vacuum pipe, wherein one end of the vacuum pipe is communicated to the main pipe, and the vacuum pipe is provided with a vacuum valve.
The safety valve further comprises a safety valve, one end of the safety valve is communicated to the main pipe, and the other end of the safety valve is communicated to the emptying pipe.
Further, still include the electronic scale, the electronic scale set up in the below of filling the pipe.
The utility model provides a fill dress system of low pressure liquefied gas according to above-mentioned content, its simple structure, low in production cost is fit for filling of low pressure liquefied gas.
In the whole filling process, the pressure regulating bottle is used as a power source, so compared with the traditional low-pressure liquefied gas filling, power equipment such as a low-temperature pump or a membrane press is omitted, and therefore, the filling system is low in production cost, low in manufacturing cost and simpler in structure; and use the filling system of this application to fill low pressure liquefied gas, also replaced traditional freezing filling method, consequently the filling system of this application need not use the refrigerant, fills the cost reduction.
Drawings
Fig. 1 is a schematic structural diagram of one embodiment of the present invention.
Fig. 2 is a partially enlarged schematic view of one embodiment of the present invention.
Wherein: the device comprises a main pipe 11, an air inlet pipe 12, a discharge pipe 13, a discharge valve 131, a pressure detection pipe 14, a pressure gauge 141, a pressure gauge valve 142, a filling pipe 15, a filling end 151, a filling valve 152, an evacuation pipe 16, an evacuation valve 161, a vacuum tube 17, a vacuum valve 171, a safety valve 18, an electronic scale 19, a product bottle 101, a pressure regulating bottle 21, a pressure reducer 22, a system pressure regulating valve 23, a raw material tank 24, a gas phase pipe 241, a gas phase valve 2401, an air inlet 2411, an air outlet 2412, a liquid phase pipe 242, a liquid phase valve 2402, a liquid outlet 2421 and a liquid inlet 2422.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
As shown in fig. 1-2, in which fig. 2 shows the internal structure of an original tank 24, a low-pressure liquefied gas filling system includes a main pipe 11, an intake pipe 12, an exhaust pipe 13, a pressure detection pipe 14, a filling pipe 15, a pressure-regulating bottle 21, a pressure reducer 22, a system pressure-regulating valve 23, and a raw material tank 24;
one end of the main pipe 11 is communicated to a pressure regulating bottle 21;
the pressure reducer 22 is arranged on the main pipe 11, the pressure reducer 22 is positioned at the output end of the pressure regulating bottle 21, and helium output from the pressure regulating bottle 22 firstly passes through the pressure reducer 22 and then enters the air inlet pipe 12;
one end of the air inlet pipe 12 is communicated with the main pipe 11, the end of the air inlet pipe 12 is positioned at the rear end of the pressure reducer 22, and the other end of the air inlet pipe 12 is communicated with an air inlet 2411 of the gas phase pipe 241 in the raw material tank 24;
one end of the discharge pipe 13 is communicated to a liquid outlet 2421 of the liquid phase pipe 242 in the raw material tank 24, and the other end of the discharge pipe 13 is communicated to the main pipe 11;
the gas phase pipe 241 is provided with a gas phase valve 2401, and the liquid phase pipe 242 is provided with a liquid phase valve 2402;
the system pressure regulating valve 23 is arranged on the main pipe 11, and the system pressure regulating valve 23 is positioned between the connection part of the air inlet pipe 12 and the main pipe 11 and the connection part of the discharge pipe 13 and the main pipe 11;
one end of the pressure detection pipe 14 is communicated to the main pipe 11, and the other end of the pressure detection pipe 14 is provided with a pressure gauge 141;
one end of the filling pipe 15 is communicated to the main pipe 11, the other end of the filling pipe 15 is a filling end 151, and the air inlet pipe 12 and the filling pipe 15 are respectively positioned at the left side and the right side of the discharge pipe 13.
In this embodiment, the pressure-regulating cylinder 21 is filled with helium gas, and the material tank 24 is filled with a material (in this embodiment, it is not limited to which gas the material is, as long as the material is a low-temperature liquefied gas that is in a liquid state during filling and during storage and use at an allowable operating temperature).
The pressure regulating bottle 21 is used as a power source of the whole filling system, when the system pressure regulating valve 23 is closed and the liquid phase valve 2402 is opened during filling, the saturated vapor pressure of the raw material in the raw material tank 24 at the relative temperature is displayed on the pressure gauge 141, then, helium enters the system from the pressure regulating bottle 21 by opening a valve of the pressure regulating bottle 21, the helium is processed by the pressure reducer 22, the pressure of helium is adjusted to be higher than the saturated vapor pressure of the raw material by 0.2-1Mpa, then a gas phase valve 2401 is opened, the helium with higher pressure enters a raw material tank 24 from an air inlet pipe 12 through a gas phase pipe 241, thereby pressing the raw material in raw material tank 24 into liquid phase pipe 242, the raw material flows from outlet port 2421 of liquid phase pipe 242 through outlet pipe 13, then flows from outlet pipe 13 to main pipe 11, finally flows from main pipe 11 to filling pipe 15, filling takes place at the filling end 151 of the filling tube 15, with the filling end 151 being in communication with the product bottle 101 to be filled.
In the whole filling process, the pressure regulating bottle 21 is used as a power source, so compared with the traditional low-pressure liquefied gas filling, power equipment such as a low-temperature pump or a membrane press is omitted, and therefore, the filling system is low in production cost, low in manufacturing cost and simpler in structure; and use the filling system of this application to fill low pressure liquefied gas, also replaced traditional freezing filling method, consequently the filling system of this application need not use the refrigerant, fills the cost reduction.
Set up system's air-vent valve 23, because before filling the dress, fill the dress system and need carry out the detection of gas tightness, when carrying out the gas tightness test, need open system's air-vent valve 23, then open the valve of pressure regulating bottle 21 self, the helium just can be full of whole pipeline that fills the dress system, then the reuse soapy water sprays the leak hunting to the pipe connection department that fills the dress system, only through leak hunting, after the gas tightness test, just can carry out subsequent dress work of filling. Therefore, after the filling system passes the air tightness test, the system is vacuumized, the system pressure regulating valve 23 is closed, and the raw material only flows to the filling pipe 15 when entering the main pipe 11 through the discharge pipe 13 during filling due to the closing of the system pressure regulating valve 23, so that the effective filling of the raw material is ensured.
Further, the gas outlet 2412 of the gas phase pipe 241 faces the top of the inner wall of the raw material tank 24, and the liquid inlet 2422 of the liquid phase pipe 242 faces the bottom of the inner wall of the raw material tank 24.
Specifically, the gas outlet 2412 of the gas phase pipe 241 faces and is close to the top of the inner wall of the raw material tank 24, and the liquid inlet 2422 of the liquid phase pipe 242 faces and is close to the bottom of the inner wall of the raw material tank 24, so that when helium with higher pressure enters the raw material tank 24 from the gas inlet pipe 12 through the gas phase pipe 241, the helium blows out from the gas outlet 2412 to apply pressure to the raw material, and under the pressure provided by the helium, the raw material enters the liquid phase pipe 242 from the liquid inlet 2422 and then flows through the discharge pipe 13 from the liquid outlet 2421 of the liquid phase pipe 242.
Further, the tapping pipe 13 is provided with a tap valve 131.
When the charging is needed, the discharge valve 131 is opened, and when the raw material tank 24 needs to be replaced, the discharge valve 131 is closed, so that external pollutants are prevented from entering the charging system.
Further, the pressure detecting pipe 14 is provided with a pressure gauge valve 142.
When the pressure gauge valve 142 needs to be opened during filling, and the pressure gauge 141 needs to be replaced or maintained, the pressure gauge valve 142 is closed, so that external pollutants are prevented from entering the filling system from the position.
Further, the number of the filling pipes 15 is at least two, and each filling pipe 15 is provided with a filling valve 152.
The number of filling tubes 15 of this embodiment is two, which improves the filling efficiency.
Further, the device also comprises an emptying pipe 16, one end of the emptying pipe 16 is communicated to the main pipe 11, and the emptying pipe 16 is provided with an emptying valve 161.
When the filling system needs to be emptied, the emptying valve 161 is opened to allow the filling system to be emptied.
Further, the vacuum pipe 17 is further included, one end of the vacuum pipe 17 is communicated to the main pipe 11, and the vacuum pipe 17 is provided with a vacuum valve 171.
When the filling system needs to be vacuumized, the vacuum valve 171 is opened to cooperate with the existing vacuum pump, so that the filling system can be vacuumized.
Further, a safety valve 18 is included, one end of the safety valve 18 is communicated to the main pipe 11, and the other end of the safety valve 18 is communicated to the emptying pipe 16.
When overpressure occurs inside the filling system, the safety valve 18 is depressurized, so that gas in the filling system can be discharged through the emptying pipe 16, and the pressure inside the filling system is ensured to be within a normal pressure range.
Further, the device also comprises an electronic scale 19, wherein the electronic scale 19 is arranged below the filling pipe 15.
During the filling operation, product bottle 101 is placed on electronic scale 19 to facilitate observation of whether product bottle 101 has reached the filled weight.
The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.
Claims (9)
1. A system for filling a liquefied gas at low pressure, comprising: comprises a main pipe, an air inlet pipe, a discharge pipe, a pressure detection pipe, a charging pipe, a pressure regulating bottle, a pressure reducer, a system pressure regulating valve and a raw material tank;
one end of the main pipe is communicated to the pressure regulating bottle;
the pressure reducer is arranged on the main pipe, and gas output from the pressure regulating bottle firstly passes through the pressure reducer and then enters the gas inlet pipe;
one end of the air inlet pipe is communicated with the main pipe, the end of the air inlet pipe is positioned at the rear end of the pressure reducer, and the other end of the air inlet pipe is communicated with an air inlet of the gas phase pipe in the raw material tank;
one end of the discharge pipe is communicated with a liquid outlet of the liquid phase pipe in the raw material tank,
the other end of the discharge pipe is communicated to the main pipe;
the gas phase pipe is provided with a gas phase valve, and the liquid phase pipe is provided with a liquid phase valve;
the system pressure regulating valve is arranged on the main pipe and is positioned between the connection part of the air inlet pipe and the main pipe and the connection part of the discharge pipe and the main pipe;
one end of the pressure detection pipe is communicated to the main pipe, and the other end of the pressure detection pipe is provided with a pressure gauge;
one end of the filling pipe is communicated to the main pipe, the other end of the filling pipe is a filling end, and the air inlet pipe and the filling pipe are respectively positioned on the left side and the right side of the discharge pipe.
2. A low pressure liquefied gas filling system according to claim 1, wherein:
the gas outlet of the gas phase pipe faces the top of the inner wall of the raw material tank, and the liquid inlet of the liquid phase pipe faces the bottom of the inner wall of the raw material tank.
3. A low pressure liquefied gas filling system according to claim 1, wherein: the discharge pipe is provided with a discharge valve.
4. A low pressure liquefied gas filling system according to claim 1, wherein: the pressure detection pipe is provided with a pressure gauge valve.
5. A low pressure liquefied gas filling system according to claim 1, wherein: the quantity of filling pipe is two at least, and every filling pipe all is equipped with fills the valve.
6. A low pressure liquefied gas filling system according to claim 1, wherein: the air-conditioning system is characterized by further comprising an emptying pipe, wherein one end of the emptying pipe is communicated to the main pipe, and the emptying pipe is provided with an emptying valve.
7. A low pressure liquefied gas filling system according to claim 1, wherein: the vacuum pipe is characterized by further comprising a vacuum pipe, one end of the vacuum pipe is communicated to the main pipe, and the vacuum pipe is provided with a vacuum valve.
8. A low pressure liquefied gas filling system according to claim 1, wherein: the safety valve is characterized by further comprising a safety valve, wherein one end of the safety valve is communicated to the main pipe, and the other end of the safety valve is communicated to the emptying pipe.
9. A low pressure liquefied gas filling system according to claim 1, wherein: still include the electronic scale, the electronic scale set up in fill the below of dress pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921279399.6U CN210266691U (en) | 2019-08-08 | 2019-08-08 | Filling system for low-pressure liquefied gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921279399.6U CN210266691U (en) | 2019-08-08 | 2019-08-08 | Filling system for low-pressure liquefied gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210266691U true CN210266691U (en) | 2020-04-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921279399.6U Active CN210266691U (en) | 2019-08-08 | 2019-08-08 | Filling system for low-pressure liquefied gas |
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| Country | Link |
|---|---|
| CN (1) | CN210266691U (en) |
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2019
- 2019-08-08 CN CN201921279399.6U patent/CN210266691U/en active Active
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