CN108590460B - A kind of safe-guard system, method and liquid nitrogen refrigerated van type vehicle - Google Patents
A kind of safe-guard system, method and liquid nitrogen refrigerated van type vehicle Download PDFInfo
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- CN108590460B CN108590460B CN201810367420.1A CN201810367420A CN108590460B CN 108590460 B CN108590460 B CN 108590460B CN 201810367420 A CN201810367420 A CN 201810367420A CN 108590460 B CN108590460 B CN 108590460B
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- oxygen concentration
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- lock
- key operated
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Classifications
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
- E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D33/00—Superstructures for load-carrying vehicles
- B62D33/02—Platforms; Open load compartments
- B62D33/023—Sideboard or tailgate structures
- B62D33/027—Sideboard or tailgate structures movable
- B62D33/037—Latching means therefor
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
- E05B47/0002—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/12—Alarms for ensuring the safety of persons responsive to undesired emission of substances, e.g. pollution alarms
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Toxicology (AREA)
- Business, Economics & Management (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Transportation (AREA)
- Emergency Management (AREA)
- Combustion & Propulsion (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Refrigerator Housings (AREA)
- Lock And Its Accessories (AREA)
Abstract
The invention discloses a kind of safe-guard system, method and liquid nitrogen refrigerated van type vehicles.Safe-guard system includes safety door, magnetic contact sensor, magnetic key operated lock, oxygen concentration sensor, controller and alarm unit, and the inside of car door is arranged in safety door, and magnetic key operated lock is used for locking safety door；Oxygen concentration sensor is arranged in compartment, oxygen concentration sensor, magnetic contact sensor, magnetic key operated lock and alarm unit are connect with controller signals, oxygen concentration sensor is used to monitor the oxygen concentration in compartment, magnetic contact sensor is used to judge the open state of car door, when car door is opened, when controller judges whether the real-time oxygen concentration value in compartment is lower than default oxygen concentration value, if, then alarm unit alert, while controller makes magnetic key operated lock be in locking states.The safe-guard system can avoid the health and lives of staff from coming to harm with the safety of safeguard work personnel.
Description
Technical field
The present invention relates to liquid nitrogen refrigerating technical fields, and in particular to a kind of safety guarantee system for liquid nitrogen refrigerated van type vehicle
System, method for protecting and liquid nitrogen refrigerated van type vehicle.
Background technique
With the raising of people's life and the general level of the health, consumer is to the timeliness of food supply, especially to the requirement of quality
Higher and higher, Cold Chain Logistics are developed rapidly with the transformation of consumption idea, and the type of chilled food is increasing, previous logical
Single temperature zone refrigerator car is increasingly difficult to meet the needs of market.
In recent years, liquid nitrogen refrigerating technology has biggish development.Liquid nitrogen refrigerating technology is divided into direct-type liquid nitrogen refrigerating technology
With indirect type liquid nitrogen refrigerating technology two ways, wherein indirect type liquid nitrogen refrigerating technology finally needs for the liquid nitrogen of low temperature to be discharged
Outside compartment, the waste of liquid nitrogen cooling capacity is caused.In order to maximally utilize the cooling capacity of liquid nitrogen, common liquid nitrogen refrigerating mode is straight in the market
Connect formula liquid nitrogen refrigerating technology.
Direct-type liquid nitrogen refrigerating technology solves the low defect of indirect type liquid nitrogen refrigerating technology energy utilization rate, therefore wide
General use.Direct-type liquid nitrogen refrigerating cargo is that liquid nitrogen is sent directly into refrigerator carriage by injector or spray head, liquid nitrogen
Reduce the intracorporal temperature in compartment by gasification heat absorption and temperature difference heat absorption, after a period of time, refrigerating carriage intracorporal nitrogen content by
Cumulative to add, oxygen content gradually decreases, and when staff enters in refrigerating carriage body, there is the wind for directly contacting and suffocating with nitrogen
Danger.
Summary of the invention
The purpose of the present invention is to provide a kind of safe-guard systems for liquid nitrogen refrigerated van type vehicle, method for protecting
And liquid nitrogen refrigerated van type vehicle, to solve the problems, such as the safety of existing direct-type liquid nitrogen refrigerating refrigerated van type vehicle.
To achieve the above object, the technical scheme is that providing a kind of safe-guard system, it is used for liquid nitrogen van-type
Refrigerator car, the liquid nitrogen refrigerated van type vehicle include compartment, car door and compartment door lock, and the car door is set to the compartment, institute
Compartment door lock is stated for car door described in locking；
The safe-guard system include safety door, magnetic contact sensor, magnetic key operated lock, oxygen concentration sensor, controller and
The inside of the car door is arranged in alarm unit, the safety door, and the magnetic key operated lock is for safety door described in locking；
Oxygen concentration sensor is arranged in compartment, and magnetic contact sensor is arranged at the doorframe of the car door, the oxygen
Concentration sensor and the magnetic contact sensor are connected with the controller in a signal way., and the oxygen concentration sensor is for monitoring compartment
Interior oxygen concentration, and the real-time oxygen concentration value monitored is transmitted to the controller；The magnetic contact sensor is for judging
The open state of the car door, and the open state of the car door is sent into the controller；
The magnetic key operated lock and the alarm unit are connected with the controller in a signal way., and the controller controls the magnetic key operated lock
Open and lock；
When the car door is opened, it is dense that the controller judges whether the real-time oxygen concentration value in compartment is lower than default oxygen
When angle value, if so, the alarm unit alert, while the controller makes the magnetic key operated lock be in locking shape
State.
It wherein, further include denitrogen blower, the control terminal of the denitrogen blower is connected with the controller in a signal way., when the control
When device processed judges that the real-time oxygen concentration value is less than default oxygen concentration value, the controller starts the denitrogen blower；When described
When controller judges that the real-time oxygen concentration value is greater than or equal to default oxygen concentration value, the controller closes the denitrogen wind
Machine.
Wherein, the compartment door lock is electronic lock, and the liquid nitrogen refrigerated van type vehicle further includes compartment doorlock control unit, institute
Compartment doorlock control unit is stated for controlling the open and lock of the electronic lock.
Wherein, the safe-guard system further includes emergency switch, and the emergency switch is arranged in compartment, described urgent
Switch is connect with the magnetic key operated lock and the electronics lock signal, and the emergency switch is for opening the magnetic key operated lock and the electronics
Lock.
In addition, being used for liquid nitrogen refrigerated van type vehicle, the liquid nitrogen refrigerated van type the present invention also provides a kind of method for protecting
Vehicle includes car door and compartment door lock, and the compartment door lock is for car door described in locking；
The method for protecting the following steps are included:
Step S1, with APP unlocking electronic lock；
Step S2, whether magnetic contact sensor monitoring car door is in the open state, if so, car door is in opening state
When state, start safe-guard system；
The safe-guard system includes safety door, magnetic contact sensor, magnetic key operated lock, oxygen concentration sensor, controller, report
The inside of the car door is arranged in alert unit and denitrogen blower, the safety door, and the magnetic key operated lock is for safety described in locking
Door；
The oxygen concentration sensor, the electronic lock and the magnetic contact sensor are connected with the controller in a signal way., institute
Oxygen concentration sensor is stated for monitoring the oxygen concentration in compartment, and the real-time oxygen concentration value monitored is transmitted to the control
Device；The magnetic contact sensor is used to judge the open state of the car door, and the open state of the car door is sent
The controller；The magnetic key operated lock and the alarm unit are connected with the controller in a signal way., the control terminal of the denitrogen blower
It is connected with the controller in a signal way.；
Step S3, the concentration of oxygen obtains real-time oxygen concentration value in oxygen concentration sensor monitoring compartment, and by the reality
When oxygen concentration value be sent to the controller；
Step S4, judges whether the real-time oxygen concentration value is less than default oxygen concentration value, if so, thening follow the steps S5；If
It is no, then follow the steps S7；
Step S5, the controller alert and denitrogen fan initiating signal, while it is in the magnetic key operated lock
Locking states；
Step S6, the alarm unit executes the warning message, and starts the denitrogen blower, while returning and executing step
Rapid S3；
Step S7, the controller, which issues, opens magnetic key operated lock open signal；
Step S8, the magnetic key operated lock execute the magnetic key operated lock open signal.
Wherein, the method for protecting further include:
When staff is in the compartment and the car door and the safety door are in close state, by tight
Anxious switch opens the magnetic key operated lock and the electronic lock；
The emergency switch is arranged in compartment, and the emergency switch and the magnetic key operated lock and the electronics lock signal connect
It connects.
In addition, the present invention also provides a kind of liquid nitrogen refrigerated van type vehicles comprising car door and compartment door lock, the car door
For lock for car door described in locking, the liquid nitrogen refrigerated van type vehicle further includes that safe-guard system includes safety door, magnetic contact biography
The inside of the car door, institute is arranged in sensor, magnetic key operated lock, oxygen concentration sensor, controller and alarm unit, the safety door
Magnetic key operated lock is stated for safety door described in locking；
The oxygen concentration sensor and the magnetic contact sensor are connected with the controller in a signal way., the oxygen concentration sensing
Device is used to monitor the oxygen concentration in compartment, and the real-time oxygen concentration value monitored is transmitted to the controller；The magnetic contact
Sensor is used to judge the open state of the car door, and the open state of the car door is sent the controller；
The magnetic key operated lock and the alarm unit are connected with the controller in a signal way., and the controller controls the magnetic key operated lock
Open and lock；
When the car door is opened, the controller judges that the real-time oxygen concentration value in compartment is lower than default oxygen concentration value
When, the alarm unit alert, while the controller makes the magnetic key operated lock be in locking states.
Wherein, the liquid nitrogen refrigerated van type vehicle further includes denitrogen blower, the control terminal and the control of the denitrogen blower
The connection of device signal, when the controller judges that the real-time oxygen concentration value is less than default oxygen concentration value, the controller starting
The denitrogen blower；When the controller judges that the real-time oxygen concentration value is greater than or equal to default oxygen concentration value, the control
Device processed closes the denitrogen blower.
Wherein, the compartment door lock is electronic lock, and the liquid nitrogen refrigerated van type vehicle further includes compartment doorlock control unit, institute
Compartment doorlock control unit is stated for controlling the open and lock of the electronic lock.
Wherein, the safe-guard system further includes emergency switch, and the emergency switch is arranged in compartment, described urgent
Switch is connect with the magnetic key operated lock and the electronics lock signal, and the emergency switch is for opening the magnetic key operated lock and the electronics
Lock.
Wherein, the alarm unit includes alarm lamp and/or alarm hooter.
The present invention has the advantage that
Safety door is arranged in safe-guard system provided by the invention on the inside of car door, and safety door uses magnetic key operated lock locking,
Magnetic contact sensor is set to monitor the open state of car door in the doorframe position of car door；Oxygen concentration is arranged in compartment to pass
Sensor, to monitor the oxygen concentration in compartment；Controller is connect with oxygen concentration sensor and magnetic contact sensor signal, when magnetic touches
When point sensor monitors that car door is in the open state, controller receives the real-time oxygen concentration value of oxygen concentration sensor, works as reality
When oxygen concentration value when being less than default oxygen concentration value, controller issues alarm signal, while magnetic key operated lock being made to keep Locked state, with resistance
Only staff enters in compartment.When real-time oxygen concentration value is greater than or equal to default oxygen concentration value, controller opens magnetic key operated lock
It opens, safety door is opened, and staff enters compartment, which can be in the same of the cooling capacity for making full use of liquid nitrogen
When, the safety of safeguard work personnel avoids the health and lives of staff from coming to harm, and is the popularization of direct-type liquid nitrogen refrigerating
Provide the means of safeguard protection.
Similarly, safety guarantee mode provided by the invention is that safety door, and safety door is arranged in the inside of car door
By magnetic key operated lock locking, magnetic key operated lock controls open and lock by controller, when the real-time oxygen concentration value in compartment is dense less than default oxygen
When angle value, magnetic key operated lock locking, safety door can not be opened, and staff cannot be introduced into compartment；Start denitrogen blower, reduces in compartment
The concentration of nitrogen, while the concentration of oxygen is improved, when the real-time oxygen concentration value in compartment is greater than or equal to default oxygen concentration value,
Magnetic key operated lock is opened, and safety door is opened, and staff just can enter compartment.The method for protecting is capable of the peace of safeguard work personnel
Entirely, the health and lives of staff is avoided to come to harm.
Safety door is arranged in liquid nitrogen refrigerated van type vehicle provided by the invention on the inside of car door, and safety door is locked using magnetic key operated lock
It closes, magnetic contact sensor is set to monitor the open state of car door in the doorframe position of car door；It is dense that oxygen is set in compartment
Sensor is spent, to monitor the oxygen concentration in compartment；Controller is connect with oxygen concentration sensor and magnetic contact sensor signal, when
When magnetic contact sensor monitors that car door is in the open state, controller receives the real-time oxygen concentration value of oxygen concentration sensor,
When real-time oxygen concentration value is less than default oxygen concentration value, controller issues alarm signal, while magnetic key operated lock being made to keep Locked state,
To prevent staff from entering in compartment.When real-time oxygen concentration value is greater than or equal to default oxygen concentration value, controller makes magnetic force
Lock is opened, and safety door is opened, and staff enters compartment, which can be in the cooling capacity for making full use of liquid nitrogen
While, the safety of safeguard work personnel avoids the health and lives of staff from coming to harm, and is direct-type liquid nitrogen refrigerating
Popularization provides the means of safeguard protection.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of liquid nitrogen refrigerated van type vehicle provided in an embodiment of the present invention；
Fig. 2 be liquid nitrogen refrigerated van type vehicle provided in an embodiment of the present invention partial structure diagram (in figure, solid line indicate vehicle
Compartment door and safety door are in closed state, and chain-dotted line indicates that car door and safety door are in the open state)；
Fig. 3 is the functional block diagram of safe-guard system provided in an embodiment of the present invention；
Fig. 4 is the flow chart of method for protecting provided in an embodiment of the present invention.
Drawing reference numeral: the compartment 1-, 2- car door, 3- safety door, 4- magnetic contact sensor, 5- magnetic key operated lock, 6- oxygen concentration pass
Sensor, 7- controller, 8- alarm unit, 9- denitrogen blower, 10- emergency switch.
Specific embodiment
The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention..
Embodiment 1
In conjunction with refering to fig. 1, shown in Fig. 2 and Fig. 3, the present embodiment provides a kind of safe-guard system, the safe-guard systems
Safety guarantee is provided for liquid nitrogen refrigerated van type vehicle, is come to harm to avoid the health and lives of staff.Liquid nitrogen refrigerated van type
Vehicle includes compartment 1, car door 2 and compartment door lock (not shown), the left side wall in the setting of car door 2 and compartment 1, right side wall or
Rear wall, compartment door lock are used for locking car door 1.
Safe-guard system includes safety door 3, magnetic contact sensor 4, magnetic key operated lock 5, oxygen concentration sensor 6,7 and of controller
The inside of car door 2 is arranged in alarm unit 8, safety door 3, i.e. compartment 1 is provided with two sects, and the first sect is car door 2, the
Two sects are safety door 3, and safety door 3 is in inside, and car door 2 is on the outside.
Car door 2 is by compartment door lock locking, and safety door 3 is by 5 locking of magnetic key operated lock.Wherein, compartment door lock can be using machinery
Lock or electronic lock.The present embodiment preferably uses electronic lock, and electronic lock facilitates unlatching with combination remote controller, and can cooperate long-range end
End, as cell phone application uses.
Magnetic contact sensor 4 is arranged at the doorframe of car door 2, and for incuding the open state of car door 2, magnetic contact is passed
The output end of sensor 4 is connect with 7 signal of controller, and when car door 2 is opened, magnetic contact sensor 4 believes the unlatching of car door 2
Number it is transmitted to controller 7.
Oxygen concentration sensor 6 is arranged in compartment 1, for monitoring the concentration of oxygen in compartment 1.Oxygen concentration sensor 6 and control
7 signal of device connection processed, and the real-time oxygen concentration value monitored is transmitted to controller 7.
Magnetic key operated lock 5 and alarm unit 8 are connect with 8 signal of controller, and controller 8 controls the open and lock of magnetic key operated lock 5,
That is the open and lock of magnetic key operated lock 5 is controlled by controller 8.Alarm unit 8 includes alarm lamp and/or alarm hooter.
In the present embodiment, when car door 2 is opened, the signal that car door 2 is opened is transmitted to control by magnetic contact sensor 4
Device 7 processed, controller 7 read the real-time oxygen concentration value of oxygen concentration sensor 6, then judge that the real-time oxygen concentration value in compartment 1 is
It is no lower than default oxygen concentration value when, if so, 8 alert of alarm unit, while controller 7 makes magnetic key operated lock 5 be in lock
Closed state.
As a preferred embodiment of the present embodiment, safe-guard system further includes denitrogen blower 9, denitrogen blower 9
Control terminal is connect with 7 signal of controller, when controller 7 judges that the real-time oxygen concentration value in compartment 1 is less than default oxygen concentration value,
Controller 7 starts denitrogen blower；When controller 7 judges that real-time oxygen concentration value is greater than or equal to default oxygen concentration value, controller 7
Close denitrogen blower 9.
As another preferred embodiment of the present embodiment, compartment door lock is electronic lock, and liquid nitrogen refrigerated van type vehicle further includes
Compartment doorlock control unit, compartment doorlock control unit are used to control the open and lock of electronic lock.Compartment doorlock control unit
It can use but be not limited to cell phone application, laptop.Staff can open car door by compartment doorlock control unit
Lock.
It is further preferred that safe-guard system further includes emergency switch 10, emergency switch 10 is arranged in compartment 1, tightly
Anxious switch 10 is connect with magnetic key operated lock 5 and electronics lock signal, and emergency switch 10 is for opening magnetic key operated lock 5 and electronic lock.
Embodiment 2
The present embodiment provides a kind of method for protecting, for ensureing the safety of liquid nitrogen refrigerated van type vehicle, the liquid nitrogen van-type
Refrigerator car includes car door and compartment door lock, and compartment door lock is used for locking car door.In the present embodiment, compartment door lock is electronics
Lock.Moreover, the method for protecting is the method for protecting proposed based on the safe-guard system in embodiment 1.
As shown in figure 4, method for protecting the following steps are included:
Step S1, with APP unlocking electronic lock；
Safe-guard system includes safety door, magnetic contact sensor, magnetic key operated lock, oxygen concentration sensor, controller, alarm list
The inside of car door is arranged in member and denitrogen blower, safety door, and magnetic key operated lock is used for locking safety door；
Oxygen concentration sensor, electronic lock and magnetic contact sensor are connect with controller signals, and oxygen concentration sensor is for supervising
Oxygen concentration in measuring car compartment, and the real-time oxygen concentration value monitored is transmitted to controller；Magnetic contact sensor is for judging vehicle
The open state of compartment door, and the open state of car door is sent into controller；Magnetic key operated lock and alarm unit and controller signals connect
It connects, the control terminal of denitrogen blower is connect with controller signals.
In step sl, staff issues unlocking electronic lock by APP by APP unlocking electronic lock, i.e. staff
Open signal, which is transmitted to by controller by wireless transmission, controller issues open signal, electricity to electronic lock
Son is opened after locking the open signal for receiving controller.After electronic lock is opened, car door can be opened.
Step S2, whether magnetic contact sensor monitors car door in the open state, if so, starting safety guarantee system
System.Step S3, the concentration that oxygen concentration sensor monitors oxygen in compartment obtains real-time oxygen concentration value, and real-time oxygen concentration value is sent
To controller；
Step S4, judges whether real-time oxygen concentration value is less than default oxygen concentration value, if the real-time oxygen concentration in compartment is less than
Default oxygen concentration value, thens follow the steps S5；If the oxygen concentration in compartment is greater than or equal to default oxygen concentration value, then follow the steps
S7；
Step S5, controller alert and denitrogen fan initiating signal, while magnetic key operated lock being made to be in locking states；
Step S6, alarm unit executes warning message, and starts denitrogen blower, while returning to step S3；
Step S7, controller, which issues, opens magnetic key operated lock open signal；
Step S8, magnetic key operated lock execute magnetic key operated lock open signal.
Preferably, in method for protecting provided in this embodiment further include:
When staff is in compartment and car door and safety door are in close state, magnetic is opened by emergency switch
Power lock and electronic lock；Emergency switch is arranged in compartment, and emergency switch is connect with magnetic key operated lock and electronics lock signal.
The present embodiment utilizes the oxygen concentration of oxygen concentration sensor real-time detection interior, when oxygen concentration is lower than setting
It is worth (such as factory-default 19.5%), if staff enters operation in compartment at this time, there are security risks.For this purpose, this reality
Example is applied using duplicate protection means, first, compartment door lock is electronic lock, is unlocked by remote terminal (or mobile phone app)
It could open, when staff need to enter in compartment, electronic lock need to be unlocked by remotely monitoring (or mobile phone app).Work as operation
When personnel click unlock, system can issue alarm and remind the oxygen concentration in compartment too low, and staff need to press confirmation unlocking button
It compulsive unlocking and car door can be opened takes a breath.Two, when car door is opened, magnetic contact sensor sends a signal to control
Device, controller judge that car door is opened while oxygen concentration is too low, and controller, which sends a signal to alarm lamp, reminds its sound-light alarm (
Operator does not enter), while controller is powered on to the magnetic key operated lock of control car door, safety door is locked completely prevents personnel's
Into, while opening ventilating fan and outdoor be quickly discharged in the nitrogen in compartment, until in compartment oxygen concentration reach setting value it
When upper, denitrogen blower stops working, alarm lamp and magnetic key operated lock power-off, staff can opening safety door voluntarily enter in compartment
Carry out operation.
In the present embodiment, judge that staff enters compartment by the state of oxygen concentration and car door in detection compartment
With the presence or absence of risk.When there are security risk, staff is reminded by the alarm of electronic lock and app, works at the same time personnel
Car door can be opened after confirmation.When unlatching denitrogen blower is taken a breath, sound-light alarm is not only issued but also by magnetic force
Safety door locking is forced that staff is prevented to enter, further protects the safety of staff by lock.
Embodiment 3
The present embodiment provides a kind of liquid nitrogen refrigerated van type vehicles comprising compartment 1, car door 2, compartment door lock and safety guarantee
System, compartment door lock are used for locking car door 2.Left side wall, right side wall or the rear wall of car door 2 setting and compartment 1, car door
Lock is used for locking car door 1.
Safe-guard system include safety door 3, magnetic contact sensor 4, magnetic key operated lock 5, oxygen concentration sensor 6, controller 7,
The inside of car door 2 is arranged in alarm unit 8, denitrogen blower 9 and emergency switch 10, safety door 3, i.e. compartment 1 is provided with twice
Door, the first sect are car door 2, and the second sect is safety door 3, and safety door 3 is in inside, and car door 2 is on the outside.
Car door 2 is by compartment door lock locking, and safety door 3 is by 5 locking of magnetic key operated lock.Wherein, compartment door lock can be using machinery
Lock or electronic lock.The present embodiment preferably uses electronic lock, and electronic lock cooperates compartment doorlock control unit to use, car door lock control
Unit is used to control the open and lock of electronic lock.Compartment doorlock control unit can use but be not limited to cell phone application, notebook
Computer.Staff can open compartment door lock by compartment doorlock control unit.
Magnetic contact sensor 4 is arranged at the doorframe of car door 2, and for incuding the open state of car door 2, magnetic contact is passed
The output end of sensor 4 is connect with 7 signal of controller, and when car door 2 is opened, magnetic contact sensor 4 believes the unlatching of car door 2
Number it is transmitted to controller 7.
Oxygen concentration sensor 6 is arranged in compartment 1, for monitoring the concentration of oxygen in compartment 1.Oxygen concentration sensor 6 and control
7 signal of device connection processed, and the real-time oxygen concentration value monitored is transmitted to controller 7.
Magnetic key operated lock 5 and alarm unit 8 are connect with 8 signal of controller, and controller 8 controls the open and lock of magnetic key operated lock 5,
That is the open and lock of magnetic key operated lock 5 is controlled by controller 8.Alarm unit 8 includes alarm lamp and/or alarm hooter.
In the present embodiment, when car door 2 is opened, the signal that car door 2 is opened is transmitted to control by magnetic contact sensor 4
Device 7 processed, controller 7 read the real-time oxygen concentration value of oxygen concentration sensor 6, then judge that the real-time oxygen concentration value in compartment 1 is
It is no lower than default oxygen concentration value when, if so, 8 alert of alarm unit, while controller 7 makes magnetic key operated lock 5 be in lock
Closed state.
In the present embodiment, the control terminal of denitrogen blower 9 is connect with 7 signal of controller, when controller 7 judges in compartment 1
Real-time oxygen concentration value when being less than default oxygen concentration value, controller 7 starts denitrogen blower；When controller 7 judges real-time oxygen concentration
When value is greater than or equal to default oxygen concentration value, controller 7 closes denitrogen blower 9.
In the present embodiment, emergency switch 10 is arranged in compartment 1, emergency switch 10 and magnetic key operated lock 5 and electronics lock signal
Connection, emergency switch 10 is for opening magnetic key operated lock 5 and electronic lock.
Although above having used general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention are fallen within the scope of the claimed invention.
Claims (11)
1. a kind of safe-guard system, is used for liquid nitrogen refrigerated van type vehicle, the liquid nitrogen refrigerated van type vehicle includes compartment, car door
With compartment door lock, the car door is set to the compartment, and the compartment door lock is for car door described in locking；
It is characterized in that, the safe-guard system includes safety door, magnetic contact sensor, magnetic key operated lock, oxygen concentration sensor, control
The inside of the car door is arranged in device and alarm unit processed, the safety door, and the magnetic key operated lock is for safety door described in locking；
Oxygen concentration sensor is arranged in compartment, and magnetic contact sensor is arranged at the doorframe of the car door, the oxygen concentration
Sensor and the magnetic contact sensor are connected with the controller in a signal way., and the oxygen concentration sensor is for monitoring in compartment
Oxygen concentration, and the real-time oxygen concentration value monitored is transmitted to the controller；The magnetic contact sensor is described for judging
The open state of car door, and the open state of the car door is sent into the controller；
The magnetic key operated lock and the alarm unit are connected with the controller in a signal way., and the controller controls the magnetic key operated lock and opens
And locking；
When the car door is opened, the controller judges whether the real-time oxygen concentration value in compartment is lower than default oxygen concentration value
When, if so, the alarm unit alert, while the controller makes the magnetic key operated lock be in locking states.
2. safe-guard system according to claim 1, which is characterized in that it further include denitrogen blower, the denitrogen blower
Control terminal be connected with the controller in a signal way., when the controller judges that the real-time oxygen concentration value is less than default oxygen concentration value
When, the controller starts the denitrogen blower；It is preset when the controller judges that the real-time oxygen concentration value is greater than or equal to
When oxygen concentration value, the controller closes the denitrogen blower.
3. safe-guard system according to claim 1, which is characterized in that the compartment door lock is electronic lock, the liquid
Nitrogen refrigerated van type vehicle further includes compartment doorlock control unit, and the compartment doorlock control unit is for controlling opening for the electronic lock
It opens and locking.
4. safe-guard system according to claim 3, which is characterized in that the safe-guard system further includes promptly opening
It closes, the emergency switch is arranged in compartment, and the emergency switch is connect with the magnetic key operated lock and the electronics lock signal, described
Emergency switch is for opening the magnetic key operated lock and the electronic lock.
5. a kind of method for protecting is used for liquid nitrogen refrigerated van type vehicle, the liquid nitrogen refrigerated van type vehicle includes car door and electronics
Lock, the electronic lock are operated for car door described in locking, electronic lock by APP；It is characterized in that, the method for protecting packet
Include following steps:
Step S1, with APP unlocking electronic lock；
Step S2, whether magnetic contact sensor monitoring car door is in the open state, if so, car door is in the open state
When, start safe-guard system；
The safe-guard system includes safety door, magnetic contact sensor, magnetic key operated lock, oxygen concentration sensor, controller, alarm list
The inside of the car door is arranged in member and denitrogen blower, the safety door, and the magnetic key operated lock is for safety door described in locking；
The oxygen concentration sensor, the electronic lock and the magnetic contact sensor are connected with the controller in a signal way., the oxygen
Concentration sensor is used to monitor the oxygen concentration in compartment, and the real-time oxygen concentration value monitored is transmitted to the controller；Institute
It states magnetic contact sensor and sends the control for judging the open state of the car door, and by the open state of the car door
Device processed；The magnetic key operated lock and the alarm unit are connected with the controller in a signal way., the control terminal of the denitrogen blower with it is described
Controller signals connection；
Step S3, the concentration of oxygen obtains real-time oxygen concentration value in oxygen concentration sensor monitoring compartment, and by the real-time oxygen
Concentration value is sent to the controller；
Step S4, judges whether the real-time oxygen concentration value is less than default oxygen concentration value, if so, thening follow the steps S5；If it is not, then
Execute step S7；
Step S5, the controller alert and denitrogen fan initiating signal, while the magnetic key operated lock being made to be in locking
State；
Step S6, the alarm unit executes the warning message, and starts the denitrogen blower, returns to step simultaneously
S3；
Step S7, the controller, which issues, opens magnetic key operated lock open signal；
Step S8, the magnetic key operated lock execute the magnetic key operated lock open signal.
6. method for protecting according to claim 5, which is characterized in that the method for protecting further include:
When staff is in the compartment and the car door and the safety door are in close state, by promptly opening
It closes and opens the magnetic key operated lock and the electronic lock；
The emergency switch is arranged in compartment, and the emergency switch is connect with the magnetic key operated lock and the electronics lock signal.
7. a kind of liquid nitrogen refrigerated van type vehicle comprising car door and compartment door lock, the compartment door lock is for compartment described in locking
Door, which is characterized in that the liquid nitrogen refrigerated van type vehicle further includes safe-guard system, and the safe-guard system includes safety
Door, magnetic contact sensor, magnetic key operated lock, oxygen concentration sensor, controller and alarm unit, the safety door are arranged in the compartment
The inside of door, the magnetic key operated lock is for safety door described in locking；
The oxygen concentration sensor and the magnetic contact sensor are connected with the controller in a signal way., and the oxygen concentration sensor is used
Oxygen concentration in monitoring compartment, and the real-time oxygen concentration value monitored is transmitted to the controller；The magnetic contact sense
Device is used to judge the open state of the car door, and the open state of the car door is sent the controller；
The magnetic key operated lock and the alarm unit are connected with the controller in a signal way., and the controller controls the magnetic key operated lock and opens
And locking；
When the car door is opened, when the controller judges that the real-time oxygen concentration value in compartment is lower than default oxygen concentration value,
The alarm unit alert, while the controller makes the magnetic key operated lock be in locking states.
8. liquid nitrogen refrigerated van type vehicle according to claim 7, which is characterized in that the liquid nitrogen refrigerated van type vehicle further includes row
The control terminal of nitrogen blower, the denitrogen blower is connected with the controller in a signal way., when the controller judges that the real-time oxygen is dense
When angle value is less than default oxygen concentration value, the controller starts the denitrogen blower；When the controller judges the real-time oxygen
When concentration value is greater than or equal to default oxygen concentration value, the controller closes the denitrogen blower.
9. liquid nitrogen refrigerated van type vehicle according to claim 7, which is characterized in that the compartment door lock is electronic lock, described
Liquid nitrogen refrigerated van type vehicle further includes compartment doorlock control unit, and the compartment doorlock control unit is for controlling the electronic lock
Open and lock.
10. liquid nitrogen refrigerated van type vehicle according to claim 9, which is characterized in that the safe-guard system further includes tight
Anxious switch, the emergency switch are arranged in compartment, and the emergency switch is connect with the magnetic key operated lock and the electronics lock signal,
The emergency switch is for opening the magnetic key operated lock and the electronic lock.
11. liquid nitrogen refrigerated van type vehicle according to claim 7, which is characterized in that the alarm unit include alarm lamp and/
Or alarm hooter.
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| CN201810367420.1A CN108590460B (en) | 2018-04-23 | 2018-04-23 | A kind of safe-guard system, method and liquid nitrogen refrigerated van type vehicle |
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| CN108590460B true CN108590460B (en) | 2019-11-22 |
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| CN109629952A (en) * | 2018-12-06 | 2019-04-16 | 武汉乐道物流有限公司 | A kind of control method of fire-fighting sealed door, apparatus and system |
| CN110611138B (en) * | 2019-09-02 | 2021-08-27 | 北京航天发射技术研究所 | Cooling system of refrigerator car fuel cell and control method thereof |
| CN112363555B (en) * | 2020-11-05 | 2022-11-29 | 天津森罗科技股份有限公司 | Chinese-medicinal material gas conditioning maintenance insecticidal storehouse safety protection system |
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