CN110254989A - A kind of system and its control mode for nitrogen envelope edible oil pressure inside the tank - Google Patents
A kind of system and its control mode for nitrogen envelope edible oil pressure inside the tank Download PDFInfo
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- CN110254989A CN110254989A CN201910475199.6A CN201910475199A CN110254989A CN 110254989 A CN110254989 A CN 110254989A CN 201910475199 A CN201910475199 A CN 201910475199A CN 110254989 A CN110254989 A CN 110254989A
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- pressure
- nitrogen
- tank
- automatic
- edible oil
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/22—Safety features
- B65D90/32—Arrangements for preventing, or minimising the effect of, excessive or insufficient pressure
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Edible Oils And Fats (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The present invention discloses a kind of system for nitrogen envelope edible oil pressure inside the tank, including automatic pressure control device, the nitrogen gas delivery-line being connect with the automatic pressure control device, the pressure sampling pipeline being connect with the automatic pressure control device, and holding vessel be connected to the nitrogen gas delivery-line and pressure sampling pipeline, built-in edible oil；The holding vessel is provided with more than one, and is arranged in parallel with the nitrogen gas delivery-line, and the holding vessel is also arranged in parallel with the pressure sampling pipeline；The technology of the present invention carries out triple safe control to holding vessel using automatic pressure control device, holding vessel internal pressure is excessively high when for oil inlet is automatically adjusted, or for it is fuel-displaced when holding vessel internal pressure cross bottom and be automatically adjusted, ensure the constant of pressure inside the tank when holding vessel edible oil nitrogen seals, to reach the security purpose of holding vessel edible oil nitrogen envelope, and automation control produces under safety guarantee, is conducive to improve production efficiency.
Description
Technical field
The present invention relates to a kind of edible fat production system, it is especially a kind of for nitrogen envelope edible oil pressure inside the tank system and
Its control mode.
Background technique
Tea oil, camellia seed oil is commonly called as also known as camellia oil, camellia seed oil, is the C. olelfera from Theaceae Camellia Plants
The pure natural high edible vegetable oil extracted in (Camellia oleifera Abel) mature seed, golden yellow color or pale yellow,
Quality is pure, clear, smell faint scent, good taste.Tea oil as edible oil, the shelf-life according to the mode that it is saved and
Difference, common rotten mode are that the main reason for tea oil is rancid, and tea oil is rancid is contacted with the oxygen in air, are made in oil not
Oxidation reaction occurs for saturated fatty acid, so that tea oil is lost the storage life that edible value extends tea oil, conventional method is exactly to add
Various antioxidants at present because consumer is rich to the safety generation load of tea oil addition chemical antioxidants, but add day
Right antioxidant cost is again especially high；Therefore, edible oilmill replaces the air in tea oil holding vessel using nitrogen at present, real
Border is exactly that have completely cut off oxygen in oil storage tank fresh-keeping to achieve the purpose that not with tea oil oxidation reaction, and this mode is commonly called as nitrogen envelope.
At present in the safety in utilization that tea oil holding vessel carries out nitrogen envelope, primarily directed to the variation of holding vessel internal pressure
It is nearly all the variation of pressure difference when guaranteeing holding vessel disengaging oil by the single breather valve on holding vessel in safety assurance.
When this single breathing defective valve, when either extracting oil out into holding vessel or oil pump using oil pump pump oil, it is possible to lead
It causes the excessive explosion of holding vessel internal pressure or internal pressure to become the safety accident that vacuum causes tank to burst to occur.
In conclusion the pressure inside the tank safety guarantee of existing tea oil nitrogen envelope holding vessel, is exhaled by single
Valve is inhaled to control, if breather valve breaks down or the carelessness of operator, the quick-fried tank accident hair of the tea oil holding vessel being easy to cause
It is raw, therefore its poor safety performance, affect production efficiency.
Summary of the invention
In view of this, it is an object of the present invention to provide a kind of production security height, high degree of automation and high production efficiency
For the system of nitrogen envelope edible oil pressure inside the tank, in addition, in conjunction with system structure of the invention, when in use can for oil inlet or
It is fuel-displaced regulated and controled, realize triple safe protection, prevent the quick-fried tank of oily holding vessel.
In order to solve the above-mentioned technical problem, the technical scheme is that
A kind of system for nitrogen envelope edible oil pressure inside the tank, including automatic pressure control device, it is automatic with the pressure
The nitrogen gas delivery-line of control device connection, the pressure that connect with the automatic pressure control device are sampled pipeline, and with institute
The holding vessel of edible oil that the nitrogen gas delivery-line stated is connected to pressure sampling pipeline, built-in；The holding vessel is provided with one
More than, and be arranged in parallel with the nitrogen gas delivery-line, the holding vessel is also arranged in parallel with the pressure sampling pipeline.
Further, the automatic pressure control device includes automatic pressure controller, is located at the pressure and automatically controls
Device side and the compressed gas input pipe and nitrogen input pipe of parallel cut-in pressure automatic controller simultaneously, be arranged described
Over pressure alarm device that is above the automatic pressure controller and being connect with automatic pressure controller.
Further, one end that the compressed gas input pipe is connect with automatic pressure controller is provided with compressed gas peace
Full valve, one end that the nitrogen input pipe is connect with automatic pressure controller are provided with nitrogen input safety valve.
Further, the nitrogen gas delivery-line includes that one end and automatic pressure controller fix the delivery pipe body being connected to,
The delivery safety valve of the delivery pipe body other end is set, is arranged in the delivery pipe body close to automatic pressure controller one end
Top and with the fixed nitrogen discharge pipe being connected to of delivery pipe body, and be arranged in it is on the nitrogen discharge pipe, for controlling
Let out the butterfly valve of nitrogen.
Further, pressure sampling pipeline includes the pressure pipe that one end is connected to automatic pressure controller fixation, if
Set the pressure safety valve in the pressure pipe other end.
Further, the holding vessel includes tank body, fixed being connected to the tank body and edible oil is injected into tank body
Oil inlet pipe, and the fixed flowline being connected to of the tank body, be arranged in the tank body upper center, for protecting tank body to use
The breather valve of safety, and be arranged in tank body upper end side, for output pressure sampling export.
Further, fuel-displaced safety valve is provided on the flowline.
A kind of control mode of the system for nitrogen envelope edible oil pressure inside the tank is as follows:
Mode one: when edible oil enters tank body from oil inlet pipe or automatic pressure controller automatic nitrogen-charging gas carries out nitrogen
Feng Shi, pressure can constantly rise in tank body, when tank interior pressure rises above the pressure of breather valve control, first by exhaling
Inhale valve and be vented the interior pressure for laying down rising automatically, realize first step security protection, but work as breather valve due to oil gas adhesion or
When other failures lead to not auto-action, pressure will be passed to pressure by outlet of sampling and controlled automatically by the intracorporal pressure of tank
Device processed, when the interior pressure of tank body reaches the positive pressure safe pressure alarm limit of setting, automatic pressure controller will start superpressure report
Alert device is alarmed, and operator is reminded to detect the failure for excluding breather valve, realizes second security protection；If working as pressure security
When valve generation failure or over pressure alarm device do not cause operator's vigilance, and work as the safe pressure that pressure in tank body reaches setting
When the upper limit, still alarm does not understand continuous alarm, while automatic pressure controller can start butterfly valve automatically, and gas is discharged, real
Existing third road security protection, can exhaust the hyperpressure in holding vessel automatically；
Mode two: when the flowline of edible oil from tank body is fuel-displaced, pressure can constantly decline in tank body, and pressure is automatic first
Controller can supplement nitrogen from trend holding vessel to reach safe pressure and reach nitrogen envelope purpose, realize that the first step is anti-safely
Shield, but when can not automatic nitrogen-charging when, the intracorporal pressure of tank will by sampling outlet by pressure pass to pressure automatically control
Device, when the negative pressure safety pressure alarm that pressure inside the tank reaches setting is prescribed a time limit, automatic pressure controller will start over pressure alarm device into
Row alarm, reminds operator to detect debugging, completes second security protection；If working as tank body when failure etc. does not exclude
When interior pressure reaches the safe pressure negative pressure lower limit of setting, still over pressure alarm device does not understand continuous alarm, while breather valve can be certainly
It is dynamic to open supplement air to reach the safe pressure of tank body, complete the security protection of third road.
The technology of the present invention effect major embodiment is in the following areas: the technology of the present invention is using automatic pressure control device to storage
Tank carry out triple safe control, holding vessel internal pressure is excessively high when for oil inlet is automatically adjusted, or for it is fuel-displaced when store
Tank internal pressure is crossed bottom and is automatically adjusted, it is ensured that holding vessel edible oil nitrogen seal when pressure inside the tank it is constant, to reach storage
The security purpose of tank edible oil nitrogen envelope is deposited, and automation control produces under safety guarantee, is conducive to improve production efficiency.
Detailed description of the invention
Fig. 1 is a kind of structure chart for the system that edible oil pressure inside the tank is sealed for nitrogen of the present invention.
Specific embodiment
Below in conjunction with attached drawing, a specific embodiment of the invention is described in further detail, so that technical solution of the present invention is more
It should be readily appreciated that and grasp.
In embodiment, it is to be understood that term " centre ", "upper", "lower", " top ", " right side ", " left end ", " on
Side ", " back side ", " middle part ", etc. instructions orientation or positional relationship be based on the orientation or positional relationship shown in the drawings, be only for
Convenient for the description present invention, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific
Orientation construction and operation, therefore be not considered as limiting the invention.
A kind of system for nitrogen envelope edible oil pressure inside the tank, as shown in Figure 1, including automatic pressure control device 1, with institute
The nitrogen gas delivery-line 2 for stating the connection of automatic pressure control device 1, the pressure sampling being connect with the automatic pressure control device 1
Pipeline 3, and holding vessel 4 be connected to the nitrogen gas delivery-line 2 and pressure sampling pipeline 3, built-in edible oil；It is described
Holding vessel 4 is provided with more than one, and is arranged in parallel with the nitrogen gas delivery-line 2, passes through 1 energy of automatic pressure control device
Enough while control transfers to the nitrogen amount of different holding vessels 4, and the holding vessel 4 is also arranged in parallel with the pressure sampling pipeline 3,
The pressure condition of different holding vessels 4 can be checked simultaneously.
The automatic pressure control device 1 includes automatic pressure controller 11, is located at the automatic pressure controller 11 1
Side and the compressed gas input pipe 12 and nitrogen input pipe 13 of parallel cut-in pressure automatic controller 11 simultaneously, be arranged in institute
Over pressure alarm device 14 that is stating 11 top of automatic pressure controller and being connect with automatic pressure controller 11.The compression
One end that gas inlet pipe 12 is connect with automatic pressure controller 11 is provided with compressed gas safety valve 121, the nitrogen input
One end that pipe 13 is connect with automatic pressure controller 11 is provided with nitrogen input safety valve 121, can be improved the peace of gas conveying
Quan Xing.
The nitrogen gas delivery-line 2 includes one end and the fixed delivery pipe body 21 being connected to of automatic pressure controller 11, setting
In the delivery safety valve 22 of 21 other end of delivery pipe body, it is arranged in the delivery pipe body 21 close to automatic pressure controller 11
Nitrogen discharge pipe 23 that is above one end and being connected to the fixation of delivery pipe body 21, and be arranged on the nitrogen discharge pipe 23
, for controlling the butterfly valve 24 for letting out nitrogen, the end of the delivery pipe body 21 is connected to the fixation of breather valve 44, can by butterfly valve 24
The case where gas in tank body 41 is emptied when there is an emergency, hypertonia is avoided the occurrence of and causes fried tank.
The pressure sampling pipeline 3 includes one end and the fixed pressure pipe 31 being connected to of automatic pressure controller 11, and setting exists
The pressure safety valve 32 of 31 other end of pressure pipe, the end of the pressure pipe 31 and the fixed company of pressure inside the tank sample tap 45
It is logical.
The holding vessel 4 includes tank body 41, it is fixed be connected to the tank body 41 and into tank body 41 injection edible oil
Oil inlet pipe 42, and the fixed flowline 43 be connected to of the tank body 41, be arranged in 41 upper center of tank body, be used for protective pot
The breather valve 44 of 41 safety in utilization of body, and be arranged in the 41 upper end side of tank body, go out for the sampling of output pressure
Mouth 45；It is provided with fuel-displaced safety valve 431 on the flowline 43, can prevent edible oil from leaking by fuel-displaced safety valve 431.
A kind of control mode of the system for nitrogen envelope edible oil pressure inside the tank is as follows:
Mode one: when edible oil enters tank body 41 from oil inlet pipe 42 or 11 automatic nitrogen-charging gas of automatic pressure controller
When carrying out nitrogen envelope, pressure can constantly rise in tank body 41, when 41 internal pressure of tank body rises above the pressure of the control of breather valve 44
When power, it is vented the interior pressure for laying down rising automatically by breather valve 44 first, realizes first step security protection, but work as breather valve 44
When leading to not auto-action due to oil gas adhesion or other failures, the pressure in tank body 41 will export 45 by sampling will
Pressure passes to automatic pressure controller 11, when the interior pressure of tank body 41 reaches the positive pressure safe pressure alarm limit of setting, pressure
Power automatic controller 11 will start over pressure alarm device 14 and alarm, and operator is reminded to detect the failure for excluding breather valve 44, real
Existing second security protection；If when the generation failure of pressure safety valve 32 or over pressure alarm device 14 do not cause operator's vigilance
When, and when pressure reaches the safe pressure upper limit of setting in tank body 41, still alarm 5 does not understand continuous alarm, presses simultaneously
Power automatic controller 11 can start butterfly valve 24 automatically, and gas is discharged, and realize the security protection of third road, can exhaust storage automatically
Hyperpressure in tank；
Mode two: when the flowline 43 of edible oil from tank body 41 is fuel-displaced, pressure can constantly decline in tank body 41, press first
Power automatic controller 11 can supplement nitrogen from trend holding vessel to reach safe pressure and reach nitrogen envelope purpose, realize the first step
Security protection, but when can not automatic nitrogen-charging when, pressure will be passed to pressure by sampling outlet 45 by the pressure in tank body 41
Power automatic controller 11, when the negative pressure safety pressure alarm that pressure inside the tank reaches setting is prescribed a time limit, automatic pressure controller 11 can be opened
Dynamic over pressure alarm device 14 is alarmed, and operator is reminded to detect debugging, completes second security protection；If when failure etc.
When not excluding, when pressure reaches the safe pressure negative pressure lower limit of setting in tank body 41, still over pressure alarm device 14 can be not continuous
Alarm, while breather valve 44 can automatically turn on supplement air to reach the safe pressure of tank body 41, complete the security protection of third road.
In the present embodiment, the model JDM-25A of the automatic pressure controller 11, when using superpressure, cooperation is super
It presses alarm 14 to carry out sound-light alarm, prompts cleaning breather valve 44, if failing to clean breather valve 44 in time, certainly by breather valve 44
With forcing the function of suction and discharge to handle tank body 41, the safety of tank body is protected, the over pressure alarm device 14 uses model
The rotary alarm lamp of LTE-1101J.
In the present embodiment, the compressed gas safety valve 121, nitrogen input safety valve 121, delivery safety valve 22, pressure
Power safety valve 32 and fuel-displaced safety valve 431 connect the band handle spring fall lift safety valve using model A28H.
In the present embodiment, the butterfly valve 24 uses the Pneumatic butterfly valve of model D671F-16.
In the present embodiment, the model GFQ-2 of the breather valve 44.
The technology of the present invention effect major embodiment is in the following areas: the technology of the present invention is using automatic pressure control device to storage
Tank carry out triple safe control, holding vessel internal pressure is excessively high when for oil inlet is automatically adjusted, or for it is fuel-displaced when store
Tank internal pressure is crossed bottom and is automatically adjusted, it is ensured that holding vessel edible oil nitrogen seal when pressure inside the tank it is constant, to reach storage
The security purpose of tank edible oil nitrogen envelope is deposited, and automation control produces under safety guarantee, is conducive to improve production efficiency.
Certainly, above is representative instance of the invention, and in addition to this, the present invention can also have other a variety of specific implementations
Mode, all technical solutions formed using equivalent substitution or equivalent transformation, is all fallen within the scope of protection of present invention.
Claims (8)
1. a kind of system for nitrogen envelope edible oil pressure inside the tank, it is characterised in that: and described including automatic pressure control device
The nitrogen gas delivery-line of automatic pressure control device connection, the pressure sampling pipeline being connect with the automatic pressure control device,
And the holding vessel for edible oil that pipeline is connected to, built-in of sampling with the nitrogen gas delivery-line and pressure；The holding vessel is set
It is equipped with more than one, and is arranged in parallel with the nitrogen gas delivery-line, the holding vessel is also sampled with the pressure pipeline
It is arranged in parallel.
2. a kind of system for nitrogen envelope edible oil pressure inside the tank as described in claim 1, it is characterised in that: the pressure is certainly
Dynamic control device includes automatic pressure controller, positioned at the automatic pressure controller side and parallel cut-in pressure simultaneously
The compressed gas input pipe and nitrogen input pipe of automatic controller, be arranged in it is above the automatic pressure controller and
The over pressure alarm device being connect with automatic pressure controller.
3. a kind of system for nitrogen envelope edible oil pressure inside the tank as claimed in claim 2, it is characterised in that: the compressed gas
One end that body input pipe is connect with automatic pressure controller is provided with compressed gas safety valve, and the nitrogen input pipe and pressure are certainly
One end of movement controller connection is provided with nitrogen input safety valve.
4. a kind of system for nitrogen envelope edible oil pressure inside the tank as described in claim 1, it is characterised in that: the nitrogen is defeated
Sending pipeline includes one end and the fixed delivery pipe body being connected to of automatic pressure controller, and the defeated of the delivery pipe body other end is arranged in
Send safety valve, be arranged in the delivery pipe body above automatic pressure controller one end and with delivery pipe body fixation be connected to
Nitrogen discharge pipe, and be arranged in it is on the nitrogen discharge pipe, for controlling the butterfly valve for letting out nitrogen.
5. a kind of system for nitrogen envelope edible oil pressure inside the tank as described in claim 1, it is characterised in that: the pressure is taken out
Sample pipeline includes one end and the fixed pressure pipe being connected to of automatic pressure controller, and the pressure peace of the pressure pipe other end is arranged in
Full valve.
6. a kind of system for nitrogen envelope edible oil pressure inside the tank as described in claim 1, it is characterised in that: the holding vessel
Including tank body, oil inlet pipe fixed being connected to the tank body and that edible oil is injected into tank body is connected to tank body fixation
Flowline, the tank body upper center, breather valve for protecting tank body safety in utilization are set, and are arranged in institute
State tank body upper end side, for output pressure sampling export.
7. a kind of system for nitrogen envelope edible oil pressure inside the tank as claimed in claim 6, it is characterised in that: the flowline
On be provided with fuel-displaced safety valve.
8. a kind of control mode of the system for nitrogen envelope edible oil pressure inside the tank, which is characterized in that including following manner:
Mode one: when edible oil enters tank body from oil inlet pipe or when automatic pressure controller automatic nitrogen-charging gas carries out nitrogen envelope,
Pressure can constantly rise in tank body, when tank interior pressure rises above the pressure of breather valve control, first by breather valve
The interior pressure of rising is laid down in automatic exhaust, realizes first step security protection, but when breather valve due to oil gas adhesion or other
When failure leads to not auto-action, pressure will be passed to pressure by sampling outlet and automatically controlled by the intracorporal pressure of tank
Device, when the interior pressure of tank body reaches the positive pressure safe pressure alarm limit of setting, automatic pressure controller will start overpressure alarm
Device is alarmed, and operator is reminded to detect the failure for excluding breather valve, realizes second security protection；If working as pressure safety valve
When generation failure or over pressure alarm device do not cause operator's vigilance, and works as pressure in tank body and reach on the safe pressure of setting
In limited time, still alarm does not understand continuous alarm, while automatic pressure controller can start butterfly valve automatically, and gas is discharged, and realizes
The security protection of third road can exhaust the hyperpressure in holding vessel automatically；
Mode two: when the flowline of edible oil from tank body is fuel-displaced, pressure can constantly decline in tank body, and pressure automatically controls first
Device can supplement nitrogen from trend holding vessel to reach safe pressure and reach nitrogen envelope purpose, realize first step security protection, but
Be when can not automatic nitrogen-charging when, pressure will be passed to automatic pressure controller by sampling outlet by the intracorporal pressure of tank, when
The negative pressure safety pressure alarm that pressure inside the tank reaches setting is prescribed a time limit, and automatic pressure controller will start over pressure alarm device and be reported
It is alert, it reminds operator to detect debugging, completes second security protection；If when failure etc. does not exclude, when tank body internal pressure
When power reaches the safe pressure negative pressure lower limit of setting, still over pressure alarm device does not understand continuous alarm, while breather valve can be held automatically
Supplement air is opened to reach the safe pressure of tank body, completes the security protection of third road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910475199.6A CN110254989B (en) | 2019-06-03 | 2019-06-03 | System for controlling pressure in nitrogen-sealed edible oil tank and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910475199.6A CN110254989B (en) | 2019-06-03 | 2019-06-03 | System for controlling pressure in nitrogen-sealed edible oil tank and control method thereof |
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| Publication Number | Publication Date |
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| CN110254989A true CN110254989A (en) | 2019-09-20 |
| CN110254989B CN110254989B (en) | 2021-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910475199.6A Active CN110254989B (en) | 2019-06-03 | 2019-06-03 | System for controlling pressure in nitrogen-sealed edible oil tank and control method thereof |
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| CN110254989B (en) | 2021-03-19 |
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