CN220322801U - Liquefied natural gas sampler - Google Patents
Liquefied natural gas sampler Download PDFInfo
- Publication number
- CN220322801U CN220322801U CN202321986783.6U CN202321986783U CN220322801U CN 220322801 U CN220322801 U CN 220322801U CN 202321986783 U CN202321986783 U CN 202321986783U CN 220322801 U CN220322801 U CN 220322801U
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- CN
- China
- Prior art keywords
- natural gas
- electromagnetic valve
- liquefied natural
- air inlet
- sampling bottle
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- 239000003949 liquefied natural gas Substances 0.000 title claims abstract description 60
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 102
- 239000003345 natural gas Substances 0.000 claims abstract description 50
- 238000005070 sampling Methods 0.000 claims abstract description 50
- 239000007789 gas Substances 0.000 claims abstract description 21
- 238000001514 detection method Methods 0.000 claims abstract description 16
- 230000000712 assembly Effects 0.000 claims abstract description 8
- 238000000429 assembly Methods 0.000 claims abstract description 8
- 238000012544 monitoring process Methods 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 abstract description 10
- 238000009434 installation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 231100001261 hazardous Toxicity 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000009972 noncorrosive effect Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model provides a liquefied natural gas sampler, which comprises a main body unit, a portable unit and a control unit, wherein the main body unit is connected with the portable unit; the main body unit comprises a liquefied natural gas sampling bottle body, a content control assembly and two dangerous gas detection assemblies; the two opposite sides of the liquefied natural gas sampling bottle body are respectively provided with an air inlet interface and an air outlet interface; the content control assembly is used for detecting whether the natural gas quantity in the liquefied natural gas sampling bottle body meets the sampling quantity requirement in real time and comprises an inflatable air bag, a first electromagnetic valve and a second electromagnetic valve; the inflatable air bag is arranged at the top of the liquefied natural gas sampling bottle body; the outer end of the air inlet interface is sequentially provided with a first electromagnetic valve and a first flange connection disc; the outer end of the air outlet interface is sequentially provided with a second electromagnetic valve and a second flange connection disc; the control unit is used for controlling the opening and closing of the first electromagnetic valve and the second electromagnetic valve; the two dangerous gas detection assemblies are used for monitoring leakage conditions of natural gas in the process of gas inlet and gas outlet in real time, and alarming when the leakage of the natural gas is encountered.
Description
Technical Field
The utility model belongs to the technical field of liquefied natural gas, and particularly relates to a liquefied natural gas sampler.
Background
Liquefied natural gas, abbreviated as LNG, is characterized in that the main component is methane, the natural gas is colorless, odorless, nontoxic and noncorrosive, and in the natural gas manufacturing process, a sampler is needed to sample and detect the natural gas so as to ensure the quality of the natural gas.
The existing sampler is various, for example, chinese patent CN218782049U discloses a liquefied natural gas sampler, through the atmospheric pressure monitoring sensor that sets up, first electromagnetic valve, battery, switch, edit control panel and microprocessor module, can carry out atmospheric pressure monitoring to the inside natural gas of getting into the sampling steel bottle, when reaching appointed pressure value, through the cooperation with microprocessor module and second electromagnetic valve, in time automatic closing second electromagnetic valve, realize the mechanical ration sample of natural gas, the safe accurate sampling operation of natural gas of being convenient for. In the use process, the natural gas is usually sampled or sampled by the pipeline connection sampler, and the problem that the connection of the pipeline connection part or the pipeline is not tight or damaged under the unexpected condition can cause the natural gas to leak into the air, so that the normal sampling of the natural gas is influenced, safety accidents are easily caused, and potential safety hazards possibly existing in the severe environment of natural gas transportation and storage are eliminated. However, existing samplers often ignore the problem of natural gas leak monitoring during use.
In view of this, the applicant believes that there is a need to optimise lng sampling techniques.
Disclosure of Invention
The utility model aims to solve the technical problem that the existing sampler does not monitor natural gas leakage in the sampling and discharging processes of liquefied natural gas, and provides a novel portable liquefied natural gas sampler.
In order to achieve the above purpose, the technical solution provided by the present utility model is:
the liquefied natural gas sampler is characterized in that: comprises a main body unit, a portable unit and a control unit;
the main body unit is arranged on the portable unit and is convenient to carry and transfer, and comprises a liquefied natural gas sampling bottle body, a content control assembly and two dangerous gas detection assemblies;
the two opposite sides of the liquefied natural gas sampling bottle body are respectively provided with an air inlet interface and an air outlet interface;
the content control component is used for detecting whether the natural gas quantity in the liquefied natural gas sampling bottle body meets the sampling quantity requirement in real time and comprises an inflatable air bag, a first electromagnetic valve and a second electromagnetic valve; the inflatable air bag is arranged at the top of the liquefied natural gas sampling bottle body, and can bulge when the bottle body is filled with natural gas, so that a worker can conveniently judge whether the sampling amount meets the sampling requirement, and when the sample gas is required to be discharged, the inflatable air bag is pressed, so that the natural gas can be discharged in an accelerating way.
The outer end of the air inlet interface is sequentially provided with a first electromagnetic valve and a first flange connection disc from inside to outside, and the first electromagnetic valve is convenient for controlling the entry of natural gas;
the outer end of the air outlet interface is sequentially provided with a second electromagnetic valve and a second flange connection disc from inside to outside;
the control unit is used for controlling the opening and closing of the first electromagnetic valve and the second electromagnetic valve;
the two dangerous gas detection assemblies are arranged on the outer side of the liquefied natural gas sampling bottle body and are respectively located right above the air inlet interface and the air outlet interface, and are used for monitoring leakage conditions of natural gas in air inlet and air outlet in real time and sounding when natural gas leakage is encountered.
Further, the dangerous gas detection assembly comprises a supporting box, a movable door, a clamping limiting cushion and a MOS sensor leak detector;
the support box is arranged on the shell of the liquefied natural gas sampling bottle body, and the movable door is arranged on the support box to jointly form an installation space of the MOS sensor leak detector; the movable door mode is adopted, so that an operator can conveniently take or overhaul the MOS sensor leak detector;
the lower panel of the supporting box is provided with an air inlet window, and the upper panel is provided with a circulating hole;
the two air inlet windows are opposite to the air inlet interface and the air outlet interface respectively, specifically, opposite to the joints of the air inlet interface, the first electromagnetic valve and the first flange connecting disc, or opposite to the joints of the air outlet interface, the second electromagnetic valve and the second flange connecting disc;
the clamping limiting cushion clamps and installs the MOS sensor leak detector in the installation space of the MOS sensor leak detector and is positioned above the air inlet window; the design mode of the air inlet window and the circulating hole mainly aims at continuously enabling external air to enter the supporting box to be in contact with the MOS sensor leak detector, and the mode that the MOS sensor and the air inlet window are opposite to the interface is mainly used for facilitating timely response of the MOS sensor when natural gas leaks, and sending out sounds to prompt staff to timely process.
Further, the portable unit includes a connection rod and two support plates;
the two support plates are oppositely arranged in parallel, the upper ends of the two support plates are connected through a connecting rod, and the lower ends of the two support plates are respectively provided with a contact bottom plate;
the other opposite two sides of the liquefied natural gas sampling bottle body are respectively connected with the two support plates.
Further, in order to facilitate the handling, transportation and movement of the natural gas sampler body by an operator, the connecting rod is sleeved with a handle.
Further, in order to improve the safety of the operation personnel in using the sampler, the upper ends of the two support plates are semicircular.
Further, the vertical distance between the lower panels of the two supporting boxes and the air inlet interface and the air outlet interface is not more than 1.5cm.
The utility model has the advantages that:
1. according to the liquefied natural gas sampler, the dangerous gas detection component is arranged, so that whether the natural gas at the joint leaks or not can be monitored in real time in the actual use process of the liquefied natural gas sampler, and when the dangerous gas detection component detects the natural gas in the sampling process, an alarm can be timely sent out to remind an operator to timely treat the natural gas, the safety problem caused by the leakage of the natural gas is effectively avoided, and the safety and the practicability of the sampler in the actual use process are improved.
2. According to the liquefied natural gas sampler, the portable unit is arranged, so that the liquefied natural gas sampler is more flexible in use, can be moved to a proper position according to requirements, and is more convenient in movement.
3. According to the liquefied natural gas sampler, the inflatable air bag, the first electromagnetic valve and the second electromagnetic valve are arranged to control and assist sampling and sample output detection of liquefied natural gas; when the natural gas needing to be discharged and sampled is detected, the discharge speed of the natural gas in the sampler can be increased by extruding the air bag after the electromagnetic valve II is opened, and the efficiency of the sampler in exhaust is improved.
Drawings
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is a schematic diagram of a cross-sectional structure of a liquefied natural gas sampling bottle according to the present utility model;
FIG. 3 is a schematic view of a partial cross-sectional detail of the liquefied natural gas sampling bottle of the present utility model;
FIG. 4 is a schematic view of a partial perspective detail structure of the present utility model;
FIG. 5 is an enlarged schematic view of a part of the hazardous gas detection assembly according to the present utility model;
FIG. 6 is a schematic diagram showing a part of the dangerous gas detecting assembly according to the present utility model in an enlarged detail.
In the figure: 1. a main body unit; 101. a liquefied natural gas sampling bottle body; 102. an air inlet interface; 103. an air outlet interface; 104. a flange connecting disc I; 105. a flange connection disc II; 106. a hazardous gas detection assembly; 1061. a supporting box; 1062. a movable door; 1063. an air inlet window; 1064. a circulation hole; 1065. clamping and limiting soft cushions; 1066. a MOS sensor leak detector; 107. a content control component; 1071. an inflatable airbag; 1072. a first electromagnetic valve; 1073. a second electromagnetic valve; 2. a portable unit; 201. a support plate; 202. a contact base; 203. a connecting rod; 204. a handle.
Detailed Description
The utility model is described in further detail below with reference to the attached drawings and specific examples:
as shown in fig. 1-6, the present utility model provides a lng sampler, which includes a main body unit, a portable unit, and a control unit.
The main body unit comprises a liquefied natural gas sampling bottle body, a content control assembly and two dangerous gas detection assemblies;
the front end of the liquefied natural gas sampling bottle body is provided with an air inlet interface, and the rear end is provided with an air outlet interface.
The content control assembly is used for detecting whether the natural gas quantity in the liquefied natural gas sampling bottle body meets the sampling quantity requirement in real time and comprises an inflatable air bag, a first electromagnetic valve and a second electromagnetic valve; the inflatable air bag is arranged at the top of the liquefied natural gas sampling bottle body.
The outer end of the air inlet interface is fixedly provided with a first electromagnetic valve and a first flange connection disc from inside to outside in sequence; the outer end of the air outlet interface is fixedly provided with a second electromagnetic valve and a second flange connection disc from inside to outside in sequence; the control unit is electrically connected with the first electromagnetic valve and the second electromagnetic valve through wires and controls the opening and closing of the first electromagnetic valve and the second electromagnetic valve according to operation requirements.
The two dangerous gas detection assemblies are arranged on the outer side of the liquefied natural gas sampling bottle body and are respectively positioned right above the air inlet interface and the air outlet interface, and are used for monitoring the leakage condition of natural gas in sampling and sample discharging in real time and sounding when encountering natural gas leakage.
Each dangerous gas detection assembly comprises a supporting box, a movable door, a clamping limiting cushion and a MOS sensor leak detector; the support box is arranged on the outer shell of the liquefied natural gas sampling bottle body, and the movable door is arranged on the support box to jointly form an installation space of the MOS sensor leak detector; the movable door mode is adopted, so that an operator can conveniently take or overhaul the MOS sensor leak detector; the lower panel of supporting box is provided with the air inlet window, and the upper panel is provided with the circulation hole. The two air inlet windows are respectively opposite to the air inlet interface and the air outlet interface, and the vertical distance between the two air inlet windows and the interfaces is not more than 1.5cm, specifically, the two air inlet windows are opposite to the joints of the air inlet interface, the first electromagnetic valve and the first flange connection disc, and the joints of the air outlet interface, the second electromagnetic valve and the second flange connection disc. The clamping limiting cushion clamps and installs the MOS sensor leak detector in the mounting space of the MOS sensor leak detector and is positioned above the air inlet window. The design mode of air inlet window and circulation hole mainly makes the outside air get into the supporting box constantly and contacts with the MOS sensor leak detector, with the mode of MOS sensor leak detector, air inlet window just to interface department mainly for in the in-process of taking a sample or going out the appearance, if natural gas leaks because of unexpected condition emergence, natural gas floats upwards, natural gas can get into the supporting box through the air inlet window in proper order, MOS sensor leak detector in the supporting box detects that the content of the natural gas that floats upwards exceeds the settlement threshold value, can send out the alarm sound and accomplish the alarm, remind operating personnel to handle in time, instantaneity, sensitivity, security all promote to some extent.
The portable unit comprises a connecting rod, a handle, two supporting plates and two contact bottom plates. The two support plates are oppositely arranged in parallel, the upper ends of the two support plates are connected through a connecting rod, and the lower ends of the two support plates are respectively provided with a contact bottom plate; the left end and the right end of the liquefied natural gas sampling bottle body are respectively connected with the two support plates; in order to facilitate the handling and transportation of the natural gas sampler body by operators, the connecting rod is sleeved with a handle. In order to improve the safety of the sampler used by operators, the upper ends of the two supporting plates are semicircular.
Working principle: when the liquefied natural gas sampler is needed, the input end pipeline of the natural gas is connected with the first flange connection disc 104 of the air inlet interface 102, then the first electromagnetic valve 1072 is opened, so that the external natural gas enters the liquefied natural gas sampling bottle body 101 through the air inlet interface 102, the natural gas in the liquefied natural gas sampling bottle body 101 is continuously sufficient, the natural gas in the liquefied natural gas sampling bottle body 101 inflates the inflatable air bag 1071, the continuously enlarged inflatable air bag 1071 means that the sampling amount of the sampler meets the requirement, then the first electromagnetic valve 1072 is closed, and then the pipeline at the joint of the first flange connection disc 104 is detached. When the lng sampling bottle 101 needs to be driven to move, the handle 204 drives the support plate 201 to move, so as to drive the lng sampling bottle 101 to move to a proper position. When the natural gas in the liquefied natural gas sampling bottle 101 needs to be taken out, namely, the sample is detected, an external pipeline is connected with the second flange connection disc 105, then the second electromagnetic valve 1073 is opened, the inflatable air bag 1071 is pressed downwards, the inflatable air bag 1071 is sunken downwards, the inflatable air bag 1071 extrudes the gas in the liquefied natural gas sampling bottle 101 downwards, the natural gas is discharged through the gas outlet interface 103 in an accelerating mode, then the second electromagnetic valve 1073 is closed, and the pipeline at the joint of the second flange connection disc 105 is detached. When natural gas leaks due to unexpected situations in the sampling or sampling process, the leaked natural gas floats upwards, the natural gas enters the supporting box 1061 through the air inlet window 1063, the MOS sensor leak detector 1066 in the supporting box 1061 detects that the content of the natural gas floating upwards exceeds a set threshold value, and the MOS sensor leak detector 1066 sounds an alarm to finish an alarm.
While the utility model has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made without departing from the spirit and scope of the utility model.
Claims (6)
1. A liquefied natural gas sampler, characterized in that: comprises a main body unit, a portable unit and a control unit;
the main body unit is arranged on the portable unit and comprises a liquefied natural gas sampling bottle body, a content control assembly and two dangerous gas detection assemblies;
the two opposite sides of the liquefied natural gas sampling bottle body are respectively provided with an air inlet interface and an air outlet interface;
the content control assembly comprises an inflatable air bag, a first electromagnetic valve and a second electromagnetic valve;
the inflatable air bag is arranged at the top of the liquefied natural gas sampling bottle body;
the outer end of the air inlet interface is sequentially provided with a first electromagnetic valve and a first flange connection disc from inside to outside;
the outer end of the air outlet interface is sequentially provided with a second electromagnetic valve and a second flange connection disc from inside to outside;
the control unit is used for controlling the opening and closing of the first electromagnetic valve and the second electromagnetic valve;
the two dangerous gas detection assemblies are arranged on the outer side of the liquefied natural gas sampling bottle body and are respectively located right above the air inlet interface and the air outlet interface, and are used for monitoring leakage conditions of natural gas in air inlet and air outlet in real time and sounding when natural gas leakage is encountered.
2. The lng sampler of claim 1, wherein:
the dangerous gas detection assembly comprises a supporting box, a movable door, a clamping limiting cushion and a MOS sensor leak detector;
the support box is arranged on the shell of the liquefied natural gas sampling bottle body, is provided with the movable door and forms a mounting space of the MOS sensor leak detector together with the movable door;
the lower panel of the supporting box is provided with an air inlet window, and the upper panel is provided with a circulating hole; the two air inlet windows are respectively opposite to the air inlet interface and the air outlet interface;
and the clamping limiting cushion clamps and installs the MOS sensor leak detector in the mounting space of the MOS sensor leak detector and is positioned above the air inlet window.
3. The lng sampler according to claim 1 or 2, characterized in that:
the portable unit comprises a connecting rod and two supporting plates;
the two support plates are oppositely arranged in parallel, the upper ends of the two support plates are connected through a connecting rod, and the lower ends of the two support plates are respectively provided with a contact bottom plate;
the other opposite two sides of the liquefied natural gas sampling bottle body are respectively connected with the two support plates.
4. A lng sampler according to claim 3, wherein:
the connecting rod is sleeved with a handle.
5. The lng sampler of claim 4, wherein:
the upper ends of the two support plates are semicircular.
6. The lng sampler of claim 5, wherein:
the vertical distance between the lower panels of the two supporting boxes and the air inlet interface and the air outlet interface is not more than 1.5cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321986783.6U CN220322801U (en) | 2023-07-27 | 2023-07-27 | Liquefied natural gas sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321986783.6U CN220322801U (en) | 2023-07-27 | 2023-07-27 | Liquefied natural gas sampler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220322801U true CN220322801U (en) | 2024-01-09 |
Family
ID=89414899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321986783.6U Active CN220322801U (en) | 2023-07-27 | 2023-07-27 | Liquefied natural gas sampler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220322801U (en) |
-
2023
- 2023-07-27 CN CN202321986783.6U patent/CN220322801U/en active Active
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