CN117287621B - Intelligent freezing liquefied gas tank car fills equipment and control system - Google Patents

Intelligent freezing liquefied gas tank car fills equipment and control system Download PDF

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Publication number
CN117287621B
CN117287621B CN202311232579.XA CN202311232579A CN117287621B CN 117287621 B CN117287621 B CN 117287621B CN 202311232579 A CN202311232579 A CN 202311232579A CN 117287621 B CN117287621 B CN 117287621B
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CN
China
Prior art keywords
filling
box
tank
protective
liquefied gas
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CN202311232579.XA
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Chinese (zh)
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CN117287621A (en
Inventor
丘永樑
陈志强
肖海洋
陈震
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Anjiehui IoT Information Technology Suzhou Co Ltd
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Anjiehui IoT Information Technology Suzhou Co Ltd
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Priority to CN202311232579.XA priority Critical patent/CN117287621B/en
Publication of CN117287621A publication Critical patent/CN117287621A/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/002—Details of vessels or of the filling or discharging of vessels for vessels under pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/04—Arrangement or mounting of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/08—Mounting arrangements for vessels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/12—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures
    • F17C13/126—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures for large storage containers for liquefied gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
    • F17C5/02—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with liquefied gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/014—Nitrogen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/06—Controlling or regulating of parameters as output values
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0165—Applications for fluid transport or storage on the road
    • F17C2270/0168—Applications for fluid transport or storage on the road by vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/32—Hydrogen storage

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

The invention discloses intelligent filling equipment and a control system for a refrigerated liquefied gas tank car. The intelligent freezing liquefied gas tank car fills equipment, and the tank car includes the jar body, and the jar body is used for loading liquid nitrogen, fills equipment including filling pipeline, protective housing, air supplementing system, exhaust system, temporary storage tank and detecting system. The filling pipeline is used for filling gas into the tank body, the protection box is arranged at the tail end of the tank body and is used for protecting the filling pipeline. The air supplementing system is arranged at the upper end of the protective box and used for detecting the content of air in the protective box, the air supplementing system is used for neutralizing the air in the protective box, the exhaust system is used for extracting liquid nitrogen leaked in the protective box and is matched with the temporary storage tank, and the temporary storage tank temporarily stores the liquid nitrogen extracted by the exhaust system. The invention can reduce the damage to the body of the staff caused by the leakage of the filling equipment.

Description

Intelligent freezing liquefied gas tank car fills equipment and control system
Technical Field
The invention relates to the technical field of liquid nitrogen tank trucks, in particular to intelligent filling equipment and a control system for a refrigerated liquefied gas tank truck.
Background
With the development of industry and the continuous improvement of living standard of people, the liquid nitrogen tank truck plays an increasingly important role in the modern society. The liquid nitrogen tank truck is one kind of vehicle for conveying liquid nitrogen, and is used mainly in conveying liquid nitrogen, such as liquid oxygen, liquid nitrogen, liquid hydrogen, etc. In order to ensure the normal work and smooth transportation of the liquid nitrogen tank truck, a series of technical operation rules are required to be formulated so as to ensure the safe transportation and preservation of the liquid nitrogen tank truck.
The existing tank truck filling equipment is generally arranged at the tail part of the tank truck, and in order to ensure that the tank truck filling equipment is not damaged by external factors, the tank truck filling equipment is generally arranged in a box body, and the tank body ensures that the tank truck filling equipment is protected to a certain extent. The box belongs to comparatively sealed environment, if the gas that loads in the tank car leaks from tank car filling equipment department, can lead to the gas concentration in the box higher. The worker inhales a high concentration of gas when opening the door, which may cause physical discomfort to the worker. Particularly, nitrogen is loaded in the tank truck, and the excessive nitrogen is inhaled by staff to possibly cause the damages of hypoxia, asphyxia and the like, the damages of chest distress, shortness of breath and hypodynamia can be caused initially, and then the damages of dysphoria, excitation, nerve absentness and the like can be caused, so that the vehicle can be in coma when serious; in addition, because the temperature of liquid nitrogen is lower, the staff is when opening tank car filling equipment, and the air conditioning gushes out from the tank car filling equipment in, also can cause the staff to be injured, has great potential safety hazard. In addition, if the tank car stops in the environment that ventilates relatively poorly, for example environment such as underground parking garage, at this moment, if the filling equipment of tank car takes place to reveal, because the environment of ventilation is not led to nitrogen gas to circulate for nitrogen gas content is too high in the sealed environment, has great potential safety hazard.
Disclosure of Invention
The invention aims to provide intelligent freezing liquefied gas tank truck filling equipment and a control system, which can reduce the damage to the body of staff caused by the leakage of the filling equipment and reduce the potential safety hazard generated in the use process of the tank truck filling equipment.
In order to achieve the above purpose, the invention provides intelligent freezing liquefied gas tank truck filling equipment and a control system, wherein the intelligent freezing liquefied gas tank truck filling equipment comprises a tank body, and the tank body is used for loading liquid nitrogen. The filler device includes: a filling pipe for filling gas into the tank; the protective box is arranged at the tail end of the tank body and is used for protecting the filling pipeline; the air supplementing system is arranged at the upper end of the protective box and used for detecting the content of air in the protective box and neutralizing the air in the protective box; the exhaust system is used for extracting liquid nitrogen leaked in the protective box; the temporary storage tank is matched with the exhaust system and temporarily stores liquid nitrogen extracted by the exhaust system; and the detection system is used for detecting the reloading pipeline inside the tank body. The protection box comprises a box body, a first protection door, a second protection door and a filling pipeline, wherein the filling pipeline is arranged in the box body, and the first protection door and the second protection door are rotationally connected to the box body.
In one or more embodiments, the first protection door is rotatably connected with a connecting block, and the second protection door is fixedly connected with a limiting block matched with the connecting block.
In one or more embodiments, the tank body is provided with a hollow cavity, the air supplementing system is arranged in the hollow cavity, liquid oxygen is filled in the hollow cavity, a third air outlet is communicated with the hollow cavity, one of the hollow cavities is internally provided with a circulating component, the circulating component is used for filtering and circulating oxygen discharged into the tank body, and the air exhausting system is arranged in the hollow cavity and used for driving the liquid oxygen in the hollow cavity.
In one or more embodiments, the air make-up system includes an air make-up tank filled with oxygen and a first control display screen for displaying a balance of oxygen within the air make-up tank.
In one or more embodiments, the exhaust system comprises a pump, a pallet is fixedly connected to the protective box, the exhaust system is installed on the pallet, and a third connecting pipe is communicated between the pump and the temporary storage tank.
In one or more embodiments, the exhaust system further comprises a first connection tube in communication with the air make-up system and a second connection tube in communication with the protective housing.
In one or more embodiments, the first protection door is provided with a plurality of storage boxes, and the first protection door is connected with a sliding cover matched with the storage boxes in a sliding manner.
In one or more embodiments, the detection system includes second display screen and ultrasonic transmitter and ultrasonic receiver, ultrasonic transmitter and ultrasonic receiver set up relatively, ultrasonic transmitter installs the inside at the protective housing, set up on the second guard gate with second display screen assorted mounting groove, the second display screen rotates to be connected in the mounting groove, be provided with the shock pad between detection system and the mounting groove inner wall.
In one or more embodiments, a control system of an intelligent refrigerated liquefied gas tank truck filling device is included, the control system of the intelligent refrigerated liquefied gas tank truck filling device includes an internet of things module, and the internet of things module is used for intelligent control detecting system, exhaust system and air supplementing system.
In one or more embodiments, the internet of things module includes a cloud transmission module for transmitting data of the filling device, and a cloud analysis module for analyzing the data of the filling device.
Compared with the prior art, the intelligent freezing liquefied gas tank truck filling equipment and the control system can reduce the damage to the body of staff caused by the leakage of the filling equipment and reduce the potential safety hazard generated in the use process of the tank truck filling equipment.
Drawings
Fig. 1 is a schematic structural view of an intelligent refrigerated liquefied gas tank truck filling apparatus according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a second embodiment of the intelligent liquefied gas storage tank truck filling apparatus according to the present invention.
Fig. 3 is a schematic diagram III of a filling device of an intelligent refrigerated liquefied gas tank truck according to an embodiment of the present invention.
Fig. 4 is a schematic structural view of an intelligent liquefied gas tank truck filling apparatus according to an embodiment of the present invention.
Fig. 5 is a front view of an intelligent refrigerated liquefied gas tank truck filling apparatus according to an embodiment of the present invention.
Fig. 6 is a flow diagram of a control system for an intelligent refrigerated liquefied gas tank truck filling apparatus according to an embodiment of the present invention.
The main reference numerals illustrate:
1. A tank body; 2. a protective box; 201. a first protective door; 2011. a connecting block; 2012. a storage box; 2013. a sliding cover; 202. a second protective door; 2021. a limiting block; 203. a first display screen; 204. a case; 2041. a hollow cavity; 205. a third air outlet; 3. an air supplementing system; 301. an air supplementing box; 302. a first control display screen; 4. an exhaust system; 401. a pump; 402. a first connection pipe; 403. a second connection pipe; 404. a third connection pipe; 5. a temporary storage tank; 6. a detection system; 601. a second display screen; 602. an ultrasonic emitter; 7. a shock pad; 8. a filtering tower; 801. a first air outlet; 802. a second air outlet; 9. an air pump.
Detailed Description
The following detailed description of embodiments of the invention is, therefore, to be taken in conjunction with the accompanying drawings, and it is to be understood that the scope of the invention is not limited to the specific embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the term "comprise" or variations thereof such as "comprises" or "comprising", etc. will be understood to include the stated element or component without excluding other elements or components.
Embodiment one:
Referring to fig. 1 to 4, an intelligent liquefied gas tank truck filling device and a control system according to an embodiment of the present invention includes an intelligent liquefied gas tank truck filling device and a control system of the intelligent liquefied gas tank truck filling device. The intelligent freezing liquefied gas tank car filling equipment is used for filling liquid nitrogen into the tank car, and the intelligent freezing liquefied gas tank car filling equipment is used for detecting when filling the intelligent freezing liquefied gas tank car filling equipment, and in the operation process of the tank car, leakage of the intelligent freezing liquefied gas tank car filling equipment is guaranteed to the greatest extent possible, even leakage can be treated the leaked liquid nitrogen, and the leaked liquid nitrogen is not easy to cause injury to staff.
The control system of the intelligent freezing liquefied gas tank truck filling equipment is used for controlling the intelligent freezing liquefied gas tank truck filling equipment.
Referring to fig. 1 to 4, the intelligent refrigerated liquefied gas tank truck filling equipment comprises a tank body 1 and a filling pipeline. The tank body 1 is used for loading liquid nitrogen, and the tank body 1 can also ensure that the temperature of the liquid nitrogen can be kept stable. I.e. it is possible to keep the liquid nitrogen at a low temperature. The filling pipeline is welded at the tail end of the tank body 1, and the protective box 2 is used for protecting the filling pipeline, so that the condition that the filling pipeline is damaged due to external force is avoided.
Specifically, referring to fig. 2 to 4, the protection box 2 includes a box 204, a first protection door 201, and a second protection door 202, and a filling pipe is installed inside the box 204 by welding. The filling pipeline is communicated with the tank body 1, and liquid nitrogen can be filled into the tank body 1 through the filling pipeline. The first and second protective doors 201 and 202 are rotatably connected to the case 204 for protecting the filling pipe. The filling pipeline is not easy to damage in the box 204, and the situation that the filling pipeline is damaged by foreign objects and leakage of the tank truck is caused due to the fact that the filling pipeline is exposed is avoided.
Referring to fig. 1, a connection block 2011 is rotatably connected to the first protection door 201, and a stopper 2021 matched with the connection block 2011 is welded to the second protection door 202. The connecting block 2011 can be clamped in the limiting block 2021 through rotation, and the first protective door 201 and the second protective door 202 can be fixed through clamping. Avoiding the situation in which the first and second protective doors 201, 202 are disengaged during the tank car form, resulting in a leak of the filling pipe.
As shown in fig. 2, a plurality of storage boxes 2012 are provided on the first protective door 201, tools for repairing the filling pipes are stored in the storage boxes 2012, and the plurality of storage boxes 2012 can be used for placing different kinds of repairing tools for repairing the filling pipes. The sliding cover 2013 matched with the storage box 2012 is slidingly connected to the first protective door 201, the storage box 2012 can be completely covered by the sliding cover 2013, the lower end of the sliding cover 2013 is connected with the storage box 2012 in a magnetic manner, the sliding cover 2013 cannot be separated from the storage box 2012 due to shaking in the running process of the automobile tank truck, and loss or scattering of maintenance tools in the storage box 2012 is avoided.
Preferably, fixing members such as bolts may be further provided on the first and second barrier doors 201 and 202 to fix them, thereby reinforcing the stability of the connection of the first and second barrier doors 201 and 202.
The control system of the intelligent freezing liquefied gas tank truck filling equipment comprises an air supplementing system 3, an exhaust system 4, a temporary storage tank 5 and a detection system 6, and is shown in the figures 1-6. The air supplementing system 3 is fixed at the upper end of the protective box 2 in a welding or integrated forming mode, and the air supplementing system 3 is used for supplementing air into the protective box 2. If the filling pipe in the protective box 2 leaks, the worker opens the protective box without knowing, and the moment when the worker opens the door can cause the worker to inhale a large amount of liquid nitrogen or gas, so that the worker can cause certain harm to the body. The exhaust system 4 is used for extracting the liquid nitrogen leaked from the protective box 2, and the temporary storage tank 5 enables the low-temperature gas to be temporarily stored.
The temporary storage tank 5 is used for temporarily storing the liquid nitrogen extracted by the exhaust system 4. The detection system 6 detects the filling pipeline before and after filling, avoids the filling pipeline from cracking, and avoids the pipeline from cracking in the form process, so that the situation that the automobile tank truck leaks to cause damage to a driver and a driver can be reduced.
Referring to fig. 1 to 6, a plurality of detection probes are installed in the protection box 2, and are used for detecting the internal condition of the protection box 2, and the detection probes are matched with the first display screen 203, so that the data detected by the detection probes can be observed through the first display screen 203. The first display screen 203 performs visual display on the data detected by the detection probe, and a worker can judge the current situation in the protective box 2 through the visually displayed data. I.e. the first display 203 is used for displaying environmental parameters within the protective housing 2.
Of course, the first display screen 203 can also realize early warning of the conditions in the protective box 2 through different colors, so that the situation that a novice worker opens the protective box 2 to cause personal injury under the condition of unfamiliar parameters is avoided. The display early warning is generally carried out through three colors of green, yellow and red. Specifically, the green color is in a complete state, and the yellow color reminds the staff that the leakage occurs inside, and the first protection door 201 and the second protection door 202 can be opened after a certain protection is needed. The red color is refusal to open the protective case 2.
Preferably, a locking structure matched with the first display screen 203 may be disposed between the connecting block 2011 and the limiting block 2021, where the locking structure is used to lock in a state of opening the protection box 2, and the protection box 2 may not be opened until the first display screen 203 indicates that the protection box 2 can be opened. Under the necessary circumstances, in order to guarantee safety, can open the operation to protective housing 2 through remote control's mode, through setting up with locking structure assorted thing networking module, thing networking module is through APP or the mode of webpage, after the staff logs in, can operate protective housing 2.
Referring to fig. 1 to 4, oxygen is filled in the air supplementing system 3, and a heating component is further installed in the air supplementing system 3 and is used for heating the oxygen at a certain temperature, so that after the oxygen contacts with the liquid nitrogen, the liquid nitrogen can absorb heat, and the oxygen and the low-temperature nitrogen are neutralized to a certain degree, so that after the oxygen is inhaled by a worker, the worker cannot hurt the body.
Specifically, if the filling pipeline in the protective box 2 leaks, the filling pipeline sprays certain liquid nitrogen, the liquid nitrogen sprayed out of the filling pipeline is extracted through the exhaust system 4, the extracted low-temperature gas is temporarily stored in the temporary storage tank 5, and the liquid nitrogen can be stored in the temporary storage tank 5.
The intelligent freezing liquefied gas tank car fills equipment still includes the shutoff subassembly of installing in filling pipeline and jar body 1 junction. When the filling pipeline is continuously leaked, the blocking assembly can block the joint of the tank body 1 and the filling pipeline, so that continuous spraying of liquid nitrogen is avoided. The sprayed liquid nitrogen is recovered through the cooperation of the exhaust system 4 and the temporary storage tank 5.
Wherein, a pump 401 is communicated between the exhaust system 4 and the temporary storage tank 5, and the exhaust system 4 conveys liquid nitrogen into the temporary storage tank 5 through the pump 401. The plugging assembly generally uses a plugging air bag, the plugging air bag is arranged at the joint of the filling pipeline and the tank body 1, and liquid nitrogen can be plugged through the plugging air bag. Avoiding the continuous ejection of liquid nitrogen.
After the exhaust system 4 and the temporary storage tank 5 cooperate to extract the liquid nitrogen in the protective box 2, some liquid nitrogen vaporized at normal temperature is stored in the protective box 2. At this time, if the door is opened, a worker sucks a part of the low-temperature gas, which may cause injury. Oxygen with temperature is neutralized in to the protective housing 2 through the air supplementing system 3 for oxygen and low temperature gas mix, make low temperature gas can heat up, when the staff inhales again, in contrast, then can not cause too big injury. For example, when nitrogen gas having a low temperature and oxygen gas having a high temperature are mixed, gas having a normal temperature can be obtained, and the gas is inhaled by a person without affecting the body.
Of course, be provided with in the protective housing 2 with air supply system 3 assorted gas content test probe, through detecting the content of gas in the protective housing 2, confirm need spout like the content of oxygen in the protective housing 2 for the gaseous human body after the neutralization can adapt to, and can not cause the injury to the human body after inhaling can.
If the low-temperature gas formed after the liquid nitrogen is sucked away can not be combined with oxygen, the gas harmless to human body is obtained. At this time, it is necessary to fill the protection box 2 with normal gas, to discharge the gas remaining in the protection box 2, or to remotely open the first protection door 201 and the second protection door 202. But the first and second barrier doors 201 and 202 are directly opened in an environment requiring re-ventilation. If the low-temperature gas is harmful to the body, the worker can get close after the first and second barrier doors 201 and 202 are opened and left for a certain time.
Specifically, the exhaust system 4 includes a pump 401, a first connecting pipe 402 and a second connecting pipe 403, the pump 401 is communicated with the first connecting pipe 402 and the second connecting pipe 403, the first connecting pipe 402 is communicated with the air supplementing system 3, the second connecting pipe 403 is communicated with the protective housing 2, a special gas conveying pipeline is installed between the air supplementing system 3 and the protective housing 2, and a pressure release valve is fixedly connected in the gas conveying pipeline. If the gas in the gas supplementing system 3 needs to be conveyed into the protective box 2, the exhaust system 4 applies pressure to the gas supplementing system 3, so that the gas can enter the protective box 2 through the pressure release valve and the gas conveying pipeline, and the gas and the low-temperature gas are neutralized.
When liquid nitrogen in the protective tank 2 is pumped, the liquid nitrogen is sucked into the pump 401 through the second connecting pipe 403 and then is conveyed into the temporary storage tank 5 through the third connecting pipe 404 for temporary storage.
Typically, the number of pumps 401 is two so that the operation of driving the makeup air system 3 and drawing the liquid nitrogen in the exhaust system 4 can be performed simultaneously. Wherein, the lower extreme of pump 401 installs the layer board, and the layer board welded fastening is in one side of jar body 1, and the layer board is used for placing pump 401.
Specifically, referring to fig. 1 to 4, the air supply system 3 includes an air supply tank 301 and a first control display screen 302, where oxygen or other neutralizing gas is filled in the air supply tank 301, so that the gas after neutralization can be directly breathed by a worker, and the body of the worker is not injured in the breathing process. The first control display screen 302 is fixedly connected to one side of the air supplementing box 301 in a welding mode, and the content and the type of the air needed to enter the protective box 2 can be intuitively seen through the air supplementing box 301. While the temperature of the gas in the make-up tank 301 can also be seen. The first control display screen 302 is provided with a plurality of operable buttons, and the plurality of operable buttons can switch between intelligent operation and manual operation, so that a worker can set according to actual conditions.
Referring to fig. 4, a detection system 6 is installed inside the protection box 2, and the detection system 6 is used for detecting whether damage occurs to the reinstalled pipeline inside the tank 1. The state of filling the pipeline can be detected more accurately through ultrasonic detection.
Specifically, the detection system 6 includes a second display 601, an ultrasonic transmitter 602 and an ultrasonic receiver, where the ultrasonic transmitter 602 and the ultrasonic receiver are disposed opposite to each other, and the ultrasonic transmitter 602 and the ultrasonic receiver are both installed in the protection box 2 and matched with the filling pipeline. Ultrasonic waves emitted by the ultrasonic transmitter 602 can be received by an ultrasonic receiver, ultrasonic data received by the ultrasonic receiver can be transmitted to the cloud end through the cloud transmission module by the internet of things module matched with the detection system 6, and then the ultrasonic data are analyzed through the cloud analysis module. After analysis is completed, the analysis is transferred to the second display screen 601, and the data displayed on the second display screen 601 is convenient for the staff to observe.
Referring to fig. 3, a mounting groove matched with the second display screen 601 is formed in the second protective door 202, and the second display screen 601 is rotatably connected in the mounting groove. Namely, a rotating bracket is installed between the second display screen 601 and the side wall of the installation groove, and the rotating bracket is used for fixing the second display screen 601 and simultaneously enabling the second display screen 601 to rotate with a certain supporting point of the rotating bracket. The position of the second display screen 601 is adjusted by rotation, so that workers can conveniently stand at different positions to observe data on the second display screen 601, and a filling pipeline is judged.
Wherein, be provided with shock pad 7 between detecting system 6 and the mounting groove inner wall. The shock pad 7 can protect the outside of second display screen 601 for the tank car is at the in-process of going, and second display screen 601 can not rock because of the tank car, leads to the condition of second display screen 601 damage.
In the running process of the tank truck, a plurality of detection probes can detect whether the leakage condition occurs in the protective box 2 in real time. If a plurality of detection probes detect that leakage occurs in the protective box 2, the air supplementing system 3, the first display screen 203, the air exhausting system 4 and the temporary storage tank 5 are awakened, the first display screen 203 is arranged on the outer side of the protective box 2, and the condition inside the protective box 2 can be seen outside. Simultaneously through the colour early warning of first display screen 203, the staff can open the door at suitable time, avoids low temperature gas or liquid too much in the protective housing 2, and the staff is trade and open the protective housing 2 for low temperature gas or liquid nitrogen gushes out the condition that causes the injury to the staff. When a plurality of detection probes detect that liquid leakage occurs in the protective box 2, the plugging mechanism is started simultaneously, and the joint of the filling pipeline of the pipeline with the liquid leakage and the tank body 1 is plugged, so that the continuous leakage of liquid nitrogen is avoided. The leaked liquid nitrogen can be sucked into the temporary storage tank 5 for temporary storage by the exhaust system 4 through the liquid nitrogen in the protection tank 2. If the protective box can be recycled, otherwise, the protective box can be directly processed, and the situation that a worker is frostbitten by cold air at the moment of opening the protective box 2 can be avoided.
When the exhaust system 4 sucks away the liquid nitrogen, the temperature in the protective box 2 is also low, the gas can be compensated in the protective box 2 through the air supplementing system 3, and in general, the high-temperature oxygen and the low-temperature gas in the protective box 2 are neutralized during compensation, so that the gas in the protective box 2 can be directly discharged and can be utilized by a human body, and the human body cannot be influenced after being inhaled. In general, the gas in the gas supplementing system 3 is oxygen, or may be other gases of various types, and the gases of various types are proportionally placed in the gas supplementing system 3, and the gases of various types are matched with liquid nitrogen, and after neutralization, the gases of various types have a certain effect, for example, the gases can be used by people, and do not cause harm to human bodies.
Before filling, the filling device detects the filling pipeline through the detection system 6, detects whether the filling pipeline is damaged, and the like, and meanwhile, the valve of the filling pipeline and the like are required to be checked. The ultrasonic transmitter 602 transmits ultrasonic waves, the ultrasonic waves pass through the filling pipeline and are finally received by the ultrasonic receiver, the ultrasonic waves are transmitted and analyzed through the internet of things module, and the analyzed results are transmitted to the second display screen 601, so that workers can observe the data of the filling pipeline conveniently.
Embodiment two:
Unlike the first embodiment, the exhaust system 4 and the temporary storage tank 5 are not provided on one side of the protection box 2, and the air supply system 3 is built in the box 204.
Specifically, the box 204 is provided with a plurality of hollow cavities 2041, and the number of the hollow cavities 2041 is generally 4, and the hollow cavities 2041 are respectively formed on the side walls of the box 204. The interior of the hollow cavity 2041 is filled with a gas matched with nitrogen, typically liquid oxygen, and after the oxygen and the nitrogen are mixed, the concentration of the nitrogen can be reduced, and after the human body inhales, the human body cannot be damaged.
In general, the liquid oxygen is sprayed into the protective box 2 according to a certain proportion, so that the mixed proportion of the nitrogen and the oxygen is similar to that of the air, or the oxygen and the nitrogen are mixed, and the nitrogen cannot be excessive, so that the influence is not caused after the human body inhales.
Referring to fig. 5, a filter tower 8 is installed in one of the hollow cavities 2041. A first air outlet 801 is arranged at one end of the filtering tower 8, the first air outlet 801 is connected with another hollow cavity 2041, and an air pump 9 is arranged at one end of the filtering tower 8 away from the first air outlet 801. The air pump 9 can suck the combination of the nitrogen and the oxygen in the protection box 2. The oxygen can be filtered by the filter tower 8 so that it can enter one of the hollow cavities 2041 so that it can be recycled. After the filtering tower 8 filters to a certain degree, nitrogen can be discharged through the second gas outlet 802.
Wherein nitrogen is directly discharged to the outside of the protective case 2 through the second gas outlet 802, and at this time, the vehicle should be in a form that cannot be directly discharged in a sealed environment. If venting in a resealed environment is desired, a collection device may also be installed at one end of the second air outlet 802. Otherwise, air is not circulated in the sealed environment, so that the nitrogen concentration in the current space is too high, and the nitrogen poisoning of staff is caused.
Referring to fig. 5, the hollow cavity 2041 is further communicated with a third air outlet 205, and a valve is installed in the third air outlet 205. The interior of the hollow cavity 2041 is further provided with an exhaust system 4, and the exhaust system 4 is configured to exhaust the liquid oxygen in the hollow cavity 2041 to the interior of the protection box 2 through the third air outlet 205, so that the oxygen and the nitrogen can be mixed. The hollow box 204 is provided, so that the heat insulation effect of the box 204 can be further enhanced, liquid oxygen is filled in the hollow cavity 2041, and the heat insulation effect of the box 204 can be increased to a certain extent, thereby avoiding the overheat condition of the filling pipeline.
The foregoing descriptions of specific exemplary embodiments of the present invention are presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain the specific principles of the invention and its practical application to thereby enable one skilled in the art to make and utilize the invention in various exemplary embodiments and with various modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims (3)

1. The intelligent freezing liquefied gas tank truck filling equipment is characterized in that the tank truck comprises a tank body, wherein the tank body is used for loading liquid nitrogen; the filler device includes:
a filling pipe for filling gas into the tank;
The protective box is arranged at the tail end of the tank body and is used for protecting the filling pipeline;
the detection system is used for detecting the reloading pipeline inside the tank body;
The protective box comprises a box body, a first protective door, a second protective door and a filling pipeline, wherein the filling pipeline is arranged in the box body, and the first protective door and the second protective door are rotationally connected to the box body;
the first protective door is rotationally connected with a connecting block, and the second protective door is fixedly connected with a limiting block matched with the connecting block;
the first protection door is provided with a plurality of storage boxes, and is connected with a sliding cover matched with the storage boxes in a sliding manner;
The detection system comprises a second display screen, an ultrasonic transmitter and an ultrasonic receiver, wherein the ultrasonic transmitter and the ultrasonic receiver are oppositely arranged, the ultrasonic transmitter is arranged in the protective box, an installation groove matched with the second display screen is formed in the second protective door, the second display screen is rotationally connected in the installation groove, and a shock pad is arranged between the detection system and the inner wall of the installation groove;
The box body is provided with four hollow cavities which are respectively arranged on the side walls of the box body, and the interior of the hollow cavities is filled with liquid oxygen matched with nitrogen;
A first air outlet is arranged at one end of the filtering tower, the first air outlet is connected with another hollow cavity, an air pump is arranged at one end of the filtering tower, which is far away from the first air outlet, and the air pump can suck the combination of nitrogen and oxygen in the protective box;
The hollow cavity is further communicated with a third air outlet, a valve is arranged in the third air outlet, an exhaust system is further arranged in the hollow cavity and used for discharging liquid oxygen in the hollow cavity to the inside of the protective box through the third air outlet, and therefore oxygen and nitrogen can be mixed.
2. A control system for an intelligent refrigerated liquefied gas tank truck filling apparatus for controlling the intelligent refrigerated liquefied gas tank truck filling apparatus of claim 1, comprising:
the internet of things module is used for intelligently controlling the detection system and the exhaust system.
3. The control system of intelligent frozen liquefied gas tank car filling equipment according to claim 2, wherein the internet of things module comprises a cloud transmission module and a cloud analysis module, wherein the cloud transmission module is used for transmitting data of the filling equipment, and the cloud analysis module is used for analyzing the data of the filling equipment.
CN202311232579.XA 2023-09-22 2023-09-22 Intelligent freezing liquefied gas tank car fills equipment and control system Active CN117287621B (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3400547A (en) * 1966-11-02 1968-09-10 Williams Process for liquefaction of natural gas and transportation by marine vessel
CN104406039A (en) * 2014-11-26 2015-03-11 大连福佳·大化石油化工有限公司 Improved recycling system and technology for emptying nitrogen from liquid nitrogen tank
CN105864634A (en) * 2016-05-18 2016-08-17 天津栢奕容科技发展有限公司 Portable nitrogen purging, leakage detection, vacuum pumping and inflation device and application method
CN207893409U (en) * 2018-02-05 2018-09-21 衢州杭氧气体有限公司 A kind of automatic filling system
CN212205682U (en) * 2020-01-21 2020-12-22 杨阳 A quick cooling device for scrap metal is smelted
CN116105936A (en) * 2023-02-22 2023-05-12 安徽省锐凌计量器制造有限公司 Diffusion-preventing leakage detection device and detection method for liquid fuel

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3400547A (en) * 1966-11-02 1968-09-10 Williams Process for liquefaction of natural gas and transportation by marine vessel
CN104406039A (en) * 2014-11-26 2015-03-11 大连福佳·大化石油化工有限公司 Improved recycling system and technology for emptying nitrogen from liquid nitrogen tank
CN105864634A (en) * 2016-05-18 2016-08-17 天津栢奕容科技发展有限公司 Portable nitrogen purging, leakage detection, vacuum pumping and inflation device and application method
CN207893409U (en) * 2018-02-05 2018-09-21 衢州杭氧气体有限公司 A kind of automatic filling system
CN212205682U (en) * 2020-01-21 2020-12-22 杨阳 A quick cooling device for scrap metal is smelted
CN116105936A (en) * 2023-02-22 2023-05-12 安徽省锐凌计量器制造有限公司 Diffusion-preventing leakage detection device and detection method for liquid fuel

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