CN209459282U - A kind of liquid line plugging device using liquid nitrogen refrigerating - Google Patents
A kind of liquid line plugging device using liquid nitrogen refrigerating Download PDFInfo
- Publication number
- CN209459282U CN209459282U CN201821913900.5U CN201821913900U CN209459282U CN 209459282 U CN209459282 U CN 209459282U CN 201821913900 U CN201821913900 U CN 201821913900U CN 209459282 U CN209459282 U CN 209459282U
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- liquid nitrogen
- insulation portion
- pipeline
- liquid
- exhaust
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Abstract
The utility model discloses a kind of liquid line plugging devices using liquid nitrogen refrigerating, including pedestal, and it is successively end to end from pressurization liquid nitrogen container, liquid nitrogen pipeline and freezing pipeline, it is described to be fixedly connected from pressurization liquid nitrogen container with pedestal, it is connected with refrigerating plant on the freezing pipeline, is provided with flowmeter on the liquid nitrogen pipeline.The utility model is kept its easy to operate time saving and will not be damaged to pipeline by the ingehious design to pipeline plugging device result.
Description
Technical field
The utility model relates to a kind of liquid line emergency maintenance special equipments, specifically, be related to it is a kind of using liquid
The liquid line plugging device of nitrogen refrigeration.
Background technique
In petroleum, chemical industry, municipal field, it is often necessary to be laid with liquid line, a portion pipeline is for conveying fusing point
Higher liquid, this class I liquid I can solidify under the action of liquid nitrogen.For the normal operation for guaranteeing system, it is often necessary to liquid
Pipeline is safeguarded, needs to close general pipeline valve before maintenance to achieve the purpose that cut off the water supply or block to pipeline, but
It is to close header valve also to need to empty the liquid in pipeline behind the door, takes a long time, it is larger to systematic influence.The side being commonly used at present
Method is mechanical ductus arteriosus occluder pipeline, and the method for machine plugging is respectively to open a hole, each hole internal plug in the upstream and downstream of pipeline section
Enter the plugging device with leather cup, separate the liquid at both ends, then empties the liquid in pipeline section.In conclusion existing pipeline
Blocking technology can cause pipeline centainly to destroy, and complicated for operation.
Summary of the invention
The purpose of this utility model is to provide a kind of liquid line plugging devices using liquid nitrogen refrigerating, mainly solve existing
Have in technology, pipeline plugging device is complicated for operation time-consuming and the problem of damaging to pipeline.
In order to solve the above technical problems, the utility model uses following technical scheme:
A kind of liquid line plugging device using liquid nitrogen refrigerating, including pedestal, and it is successively end to end from pressurization
Liquid nitrogen container, liquid nitrogen pipeline and freezing pipeline, it is described to be fixedly connected from pressurization liquid nitrogen container with pedestal, it is connected on the freezing pipeline
Refrigerating plant is provided with flowmeter on the liquid nitrogen pipeline.
Further, it is fixed with heating system on the pedestal, heating pipeline, the heating are connected in the heating system
Pipeline is equipped with heating device.
Further, the tank mouth from pressurization liquid nitrogen container is equipped with pressure sensor and electromagnetism tapping valve, from pressurization liquid nitrogen container
Inside be equipped with liquid level sensor.
Further, the refrigerating plant is circular tube shaped, including exhaust insulation portion, the conveying with the exhaust insulation portion face
Insulation portion and positioned at exhaust insulation portion and convey insulation portion contact position sealing thawing apparatus, the conveying insulation portion and exhaust guarantor
Warm portion is half-round tubular, is equipped with raised line, the conveying on the conveying insulation portion and exhaust one side surface of insulation portion axis
It is vacuum or filled with heat-insulating material inside insulation portion and exhaust insulation portion, the side wall of the conveying insulation portion, which is equipped with, to be used for
It is passed through the through-hole of liquid nitrogen connecting with the cryovial linear sealing, is provided with heat release hole, the row on the sealing thawing apparatus
Gas insulation portion, conveying insulation portion and sealing thawing apparatus are fixedly connected by fastening bolt, exhaust insulation portion axis side
Equipped with the first temperature sensor.
Further, the refrigerating plant is circular tube shaped, including insulation portion, the exhaust portion with the insulation portion face, and
Sealing thawing apparatus positioned at the insulation portion and exhaust portion contact position is provided with heat release hole on the sealing thawing apparatus, institute
Stating insulation portion exhaust portion is half-round tubular, and vacuum is in the insulation portion inside or is filled with heat-insulating material, in the exhaust portion
The through-hole being connect with the cryovial linear sealing equipped with gas vent and for being passed through liquid nitrogen, the insulation portion, exhaust portion and two
A sealing thawing apparatus is fixedly connected by fastening bolt, and insulation portion axis side is equipped with the first temperature sensor.
Further, partition is fixed on the pedestal, the heating pipeline and freezing pipeline are fixed with the partition respectively
Connection.
Further, the Tool Cabinet for storing the heating device and refrigerating plant is fixed on the pedestal.
Further, operating console is fixed on the pedestal, the operating console includes S-PLC, headlamp, display
Device and second temperature sensor, the S-PLC pass through respectively corresponding transmitter and the pressure sensor, liquid level sensor,
Flowmeter, the first temperature sensor, the connection of second temperature sensor signal, the heating system, headlamp, display and electromagnetism
Tapping valve is connect with S-PLC signal respectively.
Compared with prior art, the utility model has the beneficial effects that
Certainly the pressurization liquid nitrogen container of the utility model itself can generate pressure, continuous pressurization, continuous draining, it is ensured that drain
Continuity keeps feed flow more efficient, ensures that the efficient stable of refrigerating effect.Liquid nitrogen is discharged from from pressurization liquid nitrogen container
Afterwards, the transmission through liquid nitrogen pipeline and freezing pipeline, reaches refrigerating plant, and be ultimately applied to the liquid line table to be blocked
Face solidifies the liquid in liquid line, do not destroy pipeline, without reaching in the case where vent line rapidly, quickly and easily seal
The purpose of stifled liquid line.The flowmeter being arranged on liquid nitrogen pipeline can reflect the flow of liquid nitrogen in liquid nitrogen pipeline in real time, with
Just the drain from pressurization liquid nitrogen container is controlled, has not only guaranteed the efficiency blocked, but also avoid the waste of liquid nitrogen.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model.
Fig. 2 is the refrigerating plant structural schematic diagram of the utility model.
Fig. 3 is the refrigerating plant cross-sectional view of the utility model.
Fig. 4 is the refrigerating plant structural schematic diagram of the utility model.
Fig. 5 is the refrigerating plant cross-sectional view of the utility model.
Fig. 6 is the annexation figure of the utility model PLC and each component.
Wherein, the corresponding title of appended drawing reference are as follows:
1- heating pipeline, 2- heating system, 3- Tool Cabinet, 4- flowmeter, 5- liquid nitrogen pipeline, 6- are pressurized liquid nitrogen container, 7- certainly
Pedestal, 8- heating device, 9- refrigerating plant, 10- freeze pipeline, 11- partition, 12- operating console, 13- fastening bolt, 14-
It is vented insulation portion, 15- seals thawing apparatus, 16- insulation portion, 17- exhaust portion, 18- heat release hole, 19- liquid line, 20- exhaust
Hole, 21- convey insulation portion.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
Embodiment 1
Liquid line plugging device disclosed by the utility model using liquid nitrogen refrigerating, including pedestal 7, and successively head and the tail
The connected liquid nitrogen container 6 of pressurization certainly, liquid nitrogen pipeline 5 and freezing pipeline 10, described to be fixedly connected from pressurization liquid nitrogen container 6 with pedestal 7, institute
It states and is connected with refrigerating plant 9 on freezing pipeline 10, be provided with flowmeter 4 on the liquid nitrogen pipeline 5.
In the present embodiment, pedestal 7 plays support fixation to other component.From pressurization liquid nitrogen container 6 for storing refrigeration
Required liquid nitrogen, liquid nitrogen pipeline 5 are connected to liquid nitrogen container cabinet 6, for liquid nitrogen to be delivered to freezing pipeline 10, freeze pipeline 10 into one
Liquid nitrogen is delivered to the refrigerating plant 9 of its end, the liquid line surface that refrigerating plant 9 blocks needed for being fitted in by step, and liquid nitrogen exists
The two contact surface freezes, and makes the liquid cooling solidification in liquid line.Flowmeter is for measuring liquid nitrogen in liquid nitrogen pipeline 5
Flow.
Embodiment 2
The present embodiment the difference from embodiment 1 is that, heating system 2, the heating system 2 are fixed on the pedestal 7
On be connected with heating pipeline 1, the heating pipeline 1 is equipped with heating device 8.
After the completion of closure, refrigerating plant 9 may be frozen on liquid line, and heating system 2 heats pipeline 1 and adds
Thermal 8 is used to make its defrosting to the heating of refrigerating plant 9, so that refrigerating plant 9 be enable easily to remove from liquid line.
Embodiment 3
The present embodiment the difference from example 2 is that, it is described from pressurization liquid nitrogen container 6 tank mouth be equipped with pressure sensor and electricity
Magnetic discharging valve is equipped with liquid level sensor from the inside for being pressurized liquid nitrogen container 6.
Electromagnetism tapping valve is used to control the discharge of liquid nitrogen, and pressure sensor is used to measure from the pressure inside pressurization liquid nitrogen container
Power, liquid level sensor are used to measure the liquid level situation from liquid nitrogen in pressurization liquid nitrogen container.
Embodiment 4
The present embodiment the difference from example 2 is that, the refrigerating plant 9 be circular tube shaped, including exhaust insulation portion 14, with
It is described exhaust 14 face of insulation portion conveying insulation portion 21 and positioned at exhaust insulation portion 14 and conveying 21 contact position of insulation portion it is close
Thawing apparatus 15 is sealed, the conveying insulation portion 21 and exhaust insulation portion 14 are half-round tubular, the conveying insulation portion 21 and row
It is equipped with raised line on 14 axis of gas insulation portion, one side surface, is vacuum inside the conveying insulation portion 21 and exhaust insulation portion 14
Or it is filled with heat-insulating material, the side wall of the conveying insulation portion 21 is equipped with for being passed through the close with the freezing pipeline 10 of liquid nitrogen
The through-hole of connection is sealed, heat release hole 18, the exhaust insulation portion 14, conveying insulation portion 21 are provided on the sealing thawing apparatus 15
It is fixedly connected with sealing thawing apparatus 15 by fastening bolt 13, the 14 axis side of exhaust insulation portion is passed equipped with the first temperature
Sensor.
Exhaust insulation portion 14 is with conveying insulation portion 21 and positioned at exhaust insulation portion 14 and conveying 21 contact position of insulation portion
The refrigerating plant 9 that thawing apparatus 15 forms circular tube shaped is sealed, refrigerating plant 9 is wrapped in liquid line outer surface.It is vented insulation portion
14 and conveying insulation portion 21 inside for vacuum or be filled with heat-insulating material, it is ensured that the refrigeration effect of liquid nitrogen acts on liquid line,
It is not influenced by outside heat, exhaust insulation portion 14 enables liquid nitrogen along liquid with the raised line that 21 axis side of insulation portion is equipped with is conveyed
Pipeline surface diffusion, the nitrogen that liquid nitrogen gasification generates can be discharged from the gap between raised line.It is arranged on sealing thawing apparatus 15
There is heat release hole 18, when blocking completion, if refrigerating plant 9 is frozen on liquid line, heat release hole 18 can make external heat
Amount is transmitted to the contact position of liquid line Yu refrigerating plant 9, makes its defrosting, to easily remove refrigerating plant 9.Fastening bolt
13 are fixed together for that will be vented insulation portion 14, conveying insulation portion 21 and sealing thawing apparatus 15, so that refrigerating plant 9 is fixed
On liquid line surface.First temperature sensor is used to measure the temperature of refrigerating plant 9.
Embodiment 5
The present embodiment the difference from example 2 is that, the refrigerating plant 9 is circular tube shaped, including insulation portion 16, and described
The exhaust portion 17 of 16 face of insulation portion, and the sealing thawing apparatus 15 positioned at 17 contact position of the insulation portion 16 and exhaust portion,
Heat release hole 18 is provided on the sealing thawing apparatus 15,16 exhaust portion 17 of insulation portion is half-round tubular, the heat preservation
Inside portion 16 for vacuum or it is filled with heat-insulating material, the exhaust portion 17 is equipped with gas vent 20 and for being passed through liquid nitrogen and institute
The through-hole that freezing pipeline 10 is tightly connected is stated, the insulation portion 16, exhaust portion 17 and two sealing thawing apparatus 15 pass through fastening
Bolt 13 is fixedly connected, and the 16 axis side of insulation portion is equipped with the first temperature sensor.
Insulation portion 16, exhaust portion 17 and sealing thawing apparatus 15 are fixed together under the action of fastening bolt 13, form
The refrigerating plant 9 of circular tube shaped, refrigerating plant 9 is wrapped in liquid line outer surface, and internal diameter is slightly larger than liquid line outer diameter, makes liquid
Nitrogen can be in liquid line surface distribution.16 inner vacuum of insulation portion is filled with heat-insulating material, it is ensured that the refrigeration effect of liquid nitrogen
Liquid line is acted on, is not influenced by outside heat.The gas vent 20 being arranged in exhaust portion 17 after liquid nitrogen gasification for will generate
Nitrogen discharge.It is provided with heat release hole 18 on sealing thawing apparatus 15, when blocking completion, if refrigerating plant 9 is frozen in
On liquid line, heat release hole 18 can make outside heat be transmitted to the contact position of liquid line Yu refrigerating plant 9, make its defrosting,
To easily remove refrigerating plant 9.First temperature sensor is used to measure the temperature of refrigerating plant 9.
Embodiment 6
The present embodiment the difference from example 2 is that, be fixed with partition 11 on the pedestal 7, the heating pipeline 1 and cold
Frozen pipe line 10 is fixedly connected with the partition 11 respectively.
Partition 11 is for separating internal part and working environment, and fixed heating pipeline 1 and freezing pipeline 10.
Embodiment 7
The present embodiment the difference from example 2 is that, be fixed on the pedestal 7 for storing 8 He of heating device
The Tool Cabinet 3 of refrigerating plant 9.
Tool Cabinet 3 for storing heating device 8 and refrigerating plant 9 on one's own time.
Embodiment 8
As shown in figures 1 to 6, the present embodiment the difference from example 2 is that, be fixed with operating console on the pedestal 7
12, the operating console 12 includes S7-200PLC, headlamp, display and second temperature sensor, the S7-200PLC
Pass through corresponding transmitter and the pressure sensor, liquid level sensor, flowmeter 4, the first temperature sensor, the second temperature respectively
Sensor signal connection is spent, the heating system 2, headlamp, display and electromagnetism tapping valve connect with S7-200PLC signal respectively
It connects.
Second temperature sensor is for measuring liquid line surface temperature.In the liquid nitrogen container of pressurization certainly of pressure sensor acquisition
In the liquid nitrogen pipeline 5 that portion's pressure information, the liquid nitrogen container inside liquid level information of pressurization certainly of liquid level sensor acquisition, flowmeter 4 acquire
The liquid that portion's liquid nitrogen flow information, the temperature information of the refrigerating plant 9 of the first temperature sensor acquisition, second temperature sensor acquire
Fluid line surface temperature information passes through its respective transmitter respectively and is transmitted to S7-200PLC, and shows over the display, S7-
200PLC controls the discharge of liquid nitrogen by electromagnetism tapping valve.S7-200PLC also controls the work shape of headlamp and heating system 2
State.
" one embodiment ", " another embodiment ", " embodiment ", " preferred implementation spoken of in the present specification
Example " etc., referring to combining specific features, structure or the feature of embodiment description includes describing extremely in the application generality
In few one embodiment.It is not centainly to refer to the same embodiment that statement of the same race, which occur, in multiple places in the description.Into one
For step, when describing a specific features, structure or feature in conjunction with any embodiment, what is advocated is to combine other implementations
Example realizes that this feature, structure or feature are also fallen in the scope of the utility model.
Although reference be made herein to the utility model is described in multiple explanatory embodiments of the utility model, still,
It should be understood that those skilled in the art can be designed that a lot of other modification and implementations, these modifications and implementations
It will fall within scope and spirit disclosed in the present application.More specifically, it discloses in the application, drawings and claims
In range, can building block to theme combination layout and/or layout carry out a variety of variations and modifications.In addition to building block
And/or outside the modification and improvement of layout progress, to those skilled in the art, other purposes also be will be apparent.
Claims (8)
1. a kind of liquid line plugging device using liquid nitrogen refrigerating, which is characterized in that including pedestal (7), and successively head and the tail
Connected pressurization liquid nitrogen container (6) certainly, liquid nitrogen pipeline (5) and freezing pipeline (10), it is described from pressurization liquid nitrogen container (6) and pedestal (7)
It is fixedly connected, is connected with refrigerating plant (9) on the freezing pipeline (10), be provided with flowmeter on the liquid nitrogen pipeline (5)
(4).
2. the liquid line plugging device according to claim 1 using liquid nitrogen refrigerating, which is characterized in that the pedestal
(7) it is fixed on heating system (2), heating pipeline (1) is connected on the heating system (2), is set on the heating pipeline (1)
There are heating device (8).
3. the liquid line plugging device according to claim 1 or 2 using liquid nitrogen refrigerating, which is characterized in that it is described from
The tank mouth for being pressurized liquid nitrogen container (6) is equipped with pressure sensor and electromagnetism tapping valve, passes from the inside for being pressurized liquid nitrogen container (6) equipped with liquid level
Sensor.
4. the liquid line plugging device according to claim 2 using liquid nitrogen refrigerating, which is characterized in that the freezing dress
Setting (9) is circular tube shaped, conveying insulation portion (21) and position including exhaust insulation portion (14) and described exhaust insulation portion (14) face
In exhaust insulation portion (14) and convey insulation portion (21) contact position sealing thawing apparatus (15), the conveying insulation portion (21) and
Being vented insulation portion (14) is half-round tubular, on the conveying insulation portion (21) and exhaust one side surface of insulation portion (14) axis
Equipped with raised line, the conveying insulation portion (21) and exhaust insulation portion (14) inside are vacuum or are filled with heat-insulating material, described
The side wall of conveying insulation portion (21) is equipped with the through-hole being tightly connected with freezing pipeline (10) for being passed through liquid nitrogen, described
It is provided with heat release hole (18) in sealing thawing apparatus (15), the exhaust insulation portion (14), conveying insulation portion (21) and sealing solution
Freeze device (15) to be fixedly connected by fastening bolt (13), exhaust insulation portion (14) the axis side is equipped with the first temperature sensing
Device.
5. the liquid line plugging device according to claim 1 or 2 using liquid nitrogen refrigerating, which is characterized in that described cold
Freeze device (9) as circular tube shaped, including insulation portion (16), the exhaust portion (17) with the insulation portion (16) face, and it is located at institute
The sealing thawing apparatus (15) of insulation portion (16) and exhaust portion (17) contact position is stated, is provided on the sealing thawing apparatus (15)
Heat release hole (18), insulation portion (16) exhaust portion (17) is half-round tubular, and insulation portion (16) inside is vacuum or fills out
Filled with heat-insulating material, the exhaust portion (17) is equipped with gas vent (20) and for being passed through liquid nitrogen with the freezing pipeline (10)
The through-hole of sealed connection, the insulation portion (16), exhaust portion (17) and two sealing thawing apparatus (15) pass through fastening bolt
(13) it is fixedly connected, insulation portion (16) the axis side is equipped with the first temperature sensor.
6. the liquid line plugging device according to claim 2 using liquid nitrogen refrigerating, which is characterized in that the pedestal
(7) it is fixed on partition (11), the heating pipeline (1) and freezing pipeline (10) are fixedly connected with the partition (11) respectively.
7. the liquid line plugging device according to claim 2 using liquid nitrogen refrigerating, which is characterized in that the pedestal
(7) Tool Cabinet (3) for storing the heating device (8) and refrigerating plant (9) is fixed on.
8. the liquid line plugging device according to claim 4 using liquid nitrogen refrigerating, which is characterized in that described from pressurization
The tank mouth of liquid nitrogen container (6) is equipped with pressure sensor and electromagnetism tapping valve, is equipped with level sensing from the inside for being pressurized liquid nitrogen container (6)
Device；Be fixed with operating console (12) on the pedestal (7), the operating console (12) include S7-200PLC, headlamp,
Display and second temperature sensor, the S7-200PLC pass through corresponding transmitter and the pressure sensor, liquid level respectively
Sensor, flowmeter (4), the first temperature sensor, the connection of second temperature sensor signal, the heating system (2), illumination
Lamp, display and electromagnetism tapping valve are connect with S7-200PLC signal respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821913900.5U CN209459282U (en) | 2018-11-20 | 2018-11-20 | A kind of liquid line plugging device using liquid nitrogen refrigerating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821913900.5U CN209459282U (en) | 2018-11-20 | 2018-11-20 | A kind of liquid line plugging device using liquid nitrogen refrigerating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209459282U true CN209459282U (en) | 2019-10-01 |
Family
ID=68037145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821913900.5U Active CN209459282U (en) | 2018-11-20 | 2018-11-20 | A kind of liquid line plugging device using liquid nitrogen refrigerating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209459282U (en) |
-
2018
- 2018-11-20 CN CN201821913900.5U patent/CN209459282U/en active Active
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