CN110150376A - Air-conditioning storing grain device - Google Patents

Air-conditioning storing grain device Download PDF

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Publication number
CN110150376A
CN110150376A CN201910500132.3A CN201910500132A CN110150376A CN 110150376 A CN110150376 A CN 110150376A CN 201910500132 A CN201910500132 A CN 201910500132A CN 110150376 A CN110150376 A CN 110150376A
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CN
China
Prior art keywords
gasifier
temperature
air
carbon dioxide
tonifying
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910500132.3A
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Chinese (zh)
Inventor
蒋传福
吕明
刘尚峰
齐建洲
张藻芳
邹华娜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Grain Wholesale Trading Market Co Ltd Modern Grain Logistics Center Library
Changzhou Feiyun Energy Equipment Technology Co Ltd
Original Assignee
Anhui Grain Wholesale Trading Market Co Ltd Modern Grain Logistics Center Library
Changzhou Feiyun Energy Equipment Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Anhui Grain Wholesale Trading Market Co Ltd Modern Grain Logistics Center Library, Changzhou Feiyun Energy Equipment Technology Co Ltd filed Critical Anhui Grain Wholesale Trading Market Co Ltd Modern Grain Logistics Center Library
Priority to CN201910500132.3A priority Critical patent/CN110150376A/en
Publication of CN110150376A publication Critical patent/CN110150376A/en
Pending legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23BPRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B9/00Preservation of edible seeds, e.g. cereals
    • A23B9/16Preserving with chemicals
    • A23B9/18Preserving with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor
    • A23B9/20Preserving with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor in a controlled atmosphere, e.g. partial vacuum, comprising only CO2, N2, O2 or H2O

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

The present invention provides air-conditioning storing grain devices, can regulate and control the temperature of carbon dioxide as needed, and temperature change is rapid.It includes carbon dioxide inlet, the carbon dioxide inlet is connected with heating control system, the heating control system includes main gasifier, first flow control valve, temperature-detecting device, flow gauge, the first flow control valve, the temperature-detecting device, the flow gauge is electricly connected with PLC control system, the carbon dioxide inlet is also connected with tonifying Qi gasifier, the tonifying Qi gasifier is connect by second flow control valve with the heating control system, the second flow control valve is electricly connected with the PLC control system, the air outlet temperature of the tonifying Qi gasifier is less than the air outlet temperature of the main gasifier.

Description

Air-conditioning storing grain device
Technical field
The present invention relates to grain technical field of memory, specially air-conditioning storing grain device.
Background technique
Grain can often infect the problem of insect pest and grain quality decline in storage, cause the loss or quality of grain Decline and inedibility.Currently, the safety in order to guarantee foodstuff preservation, grain depot mostly use greatly phosphine fumigation technology pair Grain heap carries out desinsection processing.But the phosphine fumigation desinsection processing not only meeting residual chemicals in grain are utilized, to stifling The healthy operator of desinsection will also result in injury.Furthermore phosphine fumigation desinsection, which is used for a long time, can be such that grain storage insect pest generates Drug resistance.
With the continuous improvement of people's living standards, people are to living environment pay attention to day by day, to high-quality, pollution-free green The demand of food is higher and higher.And FAO (Food and Agriculture Organization of the United Nation) has carried out further the use of fumigant in grain and oil storage Limitation.Therefore, existing grain storage process starts using air-conditioning storing grain technology, which is to utilize to manually adjust in grain warehouse Composition of air, generate anoxic or anaerobic, prevent the metabolic activity of harmful organism, reach the growth of control insect pest and climing The purpose prolonging, inhibit mould breeding, reducing grain breathing and physiological metabolism intensity and the ageing of delay grain quality.Air-conditioning storing grain master There are following methods: drop oxygen plus nitrogen or carbon dioxide, oxygen scavenging chemical.
Application No. is 201811304970.5 patents to disclose a kind of movable carbon dioxide air-conditioning storing grain device, It includes gasifier, gas control valve, the flow control mechanism, monitoring device connecting with the tank car equipped with liquid carbon dioxide, Monitoring device includes detecting the instrument of pressure and temperature, and flow control mechanism, monitoring device and PLC control system connect, and is used Above structure can regulate and control the flow of the carbon dioxide of discharge, pressure by PLC control system, while can also the row of monitoring The temperature of carbon dioxide out can only pass through flow control valve it can be difficult to regulating and controlling to the temperature of the carbon dioxide given off Flow is controlled, the amount that adjustment carbon dioxide is located in gasifier carrys out regulating and controlling temperature, and temperature changes slower in this way, it is difficult to Meets the needs of user.
Summary of the invention
For temperature of the existing carbon dioxide controlled atmosphere grain storage apparatus to the carbon dioxide given off carry out regulation speed compared with Slow problem, the present invention provides air-conditioning storing grain devices, can regulate and control the temperature of carbon dioxide as needed, and temperature change is fast Speed.
Its technical solution is such that air-conditioning storing grain device comprising carbon dioxide inlet, the carbon dioxide inlet connect It is connected to heating control system, the heating control system includes main gasifier, first flow control valve, temperature-detecting device, stream Meter measuring device, the first flow control valve, the temperature-detecting device, the flow gauge and PLC control system are automatically controlled Connection, it is characterised in that: the carbon dioxide inlet is also connected with tonifying Qi gasifier, and the tonifying Qi gasifier passes through second flow Control valve is connect with the heating control system, and the second flow control valve is electricly connected with the PLC control system, described The air outlet temperature of tonifying Qi gasifier is less than the air outlet temperature of the main gasifier.
It is further characterized by:
The tonifying Qi gasifier by the second flow control valve and the main gasifier or with the main gasifier exit Connection;
Heater is also connected between the main gasifier and the first flow control valve, the tonifying Qi gasifier adds with described Hot device is connect with the heater outlet by the second flow control valve, and the heater and PLC control are System electricly connects;
The main gasifier is also connected with the gas control valve electricly connected with the PLC control system;
Return-air duct is additionally provided between the main gasifier and the heater, the return-air duct is equipped with return-air shut-off valve;
The first shut-off valve, the tonifying Qi gasifier and the dioxy are equipped between the main gasifier and the carbon dioxide inlet Change and is equipped with the second shut-off valve between carbon import;
The main gasifier and the tonifying Qi gasifier use air-heating type gasifier.
After with such a structure, after liquid carbon dioxide is heated by main gasifier, in discharge, if warm Degree detection device detects that carbon dioxide temperature is too low, then controls second flow control valve and reduce remittance low-temperature carbon dioxide Amount, heating rapidly, can also reduce the flow in main gasifier by controlling first flow control valve, further heat up, and such as Fruit temperature-detecting device detects that carbon dioxide temperature is excessively high, then controls second flow control valve and increase remittance low-temperature carbon dioxide Amount, realize fast cooling.
Detailed description of the invention
Fig. 1 is 1 connection relationship diagram of the embodiment of the present invention;
Fig. 2 is 2 connection relationship diagram of the embodiment of the present invention.
Specific embodiment
Embodiment 1, another air-conditioning storing grain device as shown in Figure 1 comprising carbon dioxide inlet 1-1, for being passed through liquid Carbon dioxide, carbon dioxide inlet 1-1 pipeline are connected with heating control system, and specific carbon dioxide inlet 1-1 is connected with master Gasifier 4, successively pipeline is connected with first flow control valve 8, gas control valve 12, temperature-detecting device 9, stream to main gasifier 4 Meter measuring device 10, first flow control valve 8, temperature-detecting device 9, gas control valve 12, flow gauge 10 and PLC control are System 11 electricly connects, and heater 6 is also connected between main gasifier 4 and first flow control valve 8, carbon dioxide inlet 1-1 is also It is connected with tonifying Qi gasifier 5, tonifying Qi gasifier 5 and heater 6 or is connected with heater outlet by second flow control valve 7 It connects, heater 6, second flow control valve 7 and PLC control system 11 electricly connect, and temperature-detecting device 9 can be temperature pick-up Device, gas control valve 12 can be pressure regulator valve, while temperature transmitter, flow gauge 10 are passed to PLC by 4 ~ 20mAn signal Control system 11, tonifying Qi gasifier 5 and main gasifier 4 are all made of air-heating type gasifier, by being risen with normal temperature air heat exchange Temperature, the air outlet temperature of tonifying Qi gasifier 5 is less than the air outlet temperature of main gasifier 4, in addition, by main gasifier 4 and heater 6 Between return-air duct is set, return-air duct is equipped with return-air shut-off valve 1, extra carbon dioxide can be led to by return-air duct The device that carbon dioxide gas returning port 1-2 enters storing carbon dioxide is crossed, and between main gasifier 4 and carbon dioxide inlet 1-1 Equipped with the first shut-off valve 2, it is equipped with the second shut-off valve 3 between tonifying Qi gasifier 5 and carbon dioxide inlet 1-1, can according to need Switch respective line.
After with such a structure, after liquid carbon dioxide is heated by main gasifier 4, heater can be passed through 6 pairs of carbon dioxide carry out heat temperature raising, while can also import low-temperature carbon dioxide by tonifying Qi gasifier 5 and cool down, temperature It is big to spend variation range;Meanwhile in discharge, if temperature-detecting device 9 detects that carbon dioxide temperature is too low, second is controlled Flow control valve 7 reduces the amount for importing low-temperature carbon dioxide while the power for increasing heater 6, realization are rapidly heated, and if Temperature-detecting device 9 detects that carbon dioxide temperature is excessively high, then controls second flow control valve 7 and increase remittance low-temperature carbon dioxide Amount reduce the power of heater 6 simultaneously, realize fast cooling.
Package unit can be arranged in the form of skid mounted equipment, when needing to carry out controlled atmosphere to silo, directly be carried to phase It answers position and is connect with liquefied carbon dioxide tank vehicle, use is very convenient.In use, liquid carbon dioxide passes through titanium dioxide Carbon import 1-1 enters the present apparatus, most of to enter the main gasifier of air temperature type, by being added with the air heat-exchange under environment temperature Heat heating, when being discharged from main gasifier 4, temperature is subzero 20 degrees centigrade, and another part enters air temperature type tonifying Qi gasifier, Since the heat exchange area of tonifying Qi gasifier 5 is less than the heat exchange area of main gasifier, so that carbon dioxide is arranged from tonifying Qi gasifier 5 When out, temperature is subzero 70 degrees centigrade, is gas-liquid mixed state;And the gas being discharged from main gasifier 4, a part can lead to It crosses return-air duct to drain back in collection device, due to being filled with carbon dioxide in grain storehouse, research has shown that optimum temperature is 0 ~10 °C, so another part is passed directly into heater 6 and is heated from the gas that main gasifier 4 comes out, make its temperature into One step rise, the carbon dioxide by heating first pass through temperature-detecting device 8 detect its temperature control second flow control valve 7 again The amount that control imports cryogenic carbon dioxide gas carries out the adjusting to temperature, and the carbon dioxide by heating can be in heater 6 It is interior or mixed in 6 exit of heater with the low-temperature carbon dioxide in tonifying Qi gasifier, so as to make the two of discharge The temperature of carbonoxide maintains 0~10 °C;In addition, due to will affect using the variation of air-heating type gasifier, environment temperature from gas Change the carbon dioxide temperature that device comes out, so needing to adjust the temperature of the carbon dioxide of discharge in real time, although and only with adding Hot device can also carry out the adjusting of temperature by changing its power, and (pass through flow control compared to the mode that background technique proposes Valve processed control flow adjusts temperature) carbon dioxide flow of discharge is more stable, but the change of heter temperature is often compared Relatively slowly, can be very rapid that temperature is adjusted and by the way of the combination of the tonifying Qi pipeline and heater of the application, In addition gas control valve 12 can also be controlled by PLC control system 11 and first flow controller 8 adjusts pressure and flow Section.In addition, tonifying Qi gasifier 5 is preferably passed through heater since the gas being discharged from tonifying Qi gasifier 5 is gas-liquid mixed state It in 6, is heated by heater 6, avoids temperature too low, the temperature of certain tonifying Qi gasifier 5 is also one kind of the present embodiment Setting, if temperature is higher, can be directly connected to the exit of heater 6.
Embodiment 2, air-conditioning storing grain device as shown in Figure 2 comprising carbon dioxide inlet 1-1, carbon dioxide inlet 1-1 It is connected with heating control system, heating control system includes main gasifier 4, the gas control valve 12, temperature of sequentially pipeline connection Detection device 9, first flow control valve 8, flow gauge 10, first flow control valve 8, temperature-detecting device 9, flow measurement Device 10 is electricly connected with PLC control system 11, and carbon dioxide inlet 1-1 is also connected with tonifying Qi gasifier 5, and tonifying Qi gasifier 5 is logical It crosses second flow control valve 7 to connect with main gasifier 4 or with the outlet of main gasifier 4, second flow control valve 7 and PLC are controlled System 11 processed electricly connects, and the air outlet temperature of tonifying Qi gasifier 5 is less than the air outlet temperature of main gasifier 4, tonifying Qi gasifier 5 and master Gasifier 4 is all made of air-heating type gasifier, by heating with air heat-exchange to carbon dioxide, reduces energy consumption.
After with such a structure, after liquid carbon dioxide is heated by main gasifier 4, in discharge, if Temperature-detecting device 9 detects that carbon dioxide temperature is too low, then controls second flow control valve 7 and reduce remittance low-temperature carbon dioxide Amount, heating rapidly, can also by control first flow control valve 8 reduce the flow in main gasifier 4, further heat up, And if temperature-detecting device 9 detects that carbon dioxide temperature is excessively high, it controls second flow control valve 7 and increases remittance low temperature two The amount of carbonoxide realizes fast cooling.
Compared with Example 1, due to not using heater 6, power consumption is reduced the present embodiment, and cost reduces energy-saving ring simultaneously It protects, but increases in main gasifier 4 due to needing to reduce the flow in main gasifier 4 by control first flow control valve 8 The temperature of carbon dioxide, this will will lead to gas output reduction, and gas output is more stable in embodiment 1;Tonifying Qi gasifier 5 is excellent Gating piping is directly connected in main gasifier 4, is specifically connected to main gasifier 4 and is close to the exit on a header at place, this Be due to tonifying Qi gasifier 5 come out carbon dioxide temperature close to subzero 70 degrees Celsius, to be directly to main gasifier 4 It is too low to frequently can lead to temperature for exit site, and if be connected to inside main gasifier 4, it can be imported by 4 Duis of main gasifier Low-temperature carbon dioxide heated, prevent temperature too low, in addition, tonifying Qi gasifier temperature 5 can also be higher than it is subzero 70 Celsius Spend and then can according to need the exit that tonifying Qi gasifier 5 is connected to main gasifier 4.
In the present embodiment, low temperature Combined safety valve has also been sequentially connected between main gasifier 4 and gas control valve 12 13-1, front end monitoring device 14-1, filter 15, while low temperature also is provided between tonifying Qi gasifier 5 and second flow control valve 7 Combined safety valve, temperature-detecting device 9 and first flow control valve 8 are equipped with rear end monitoring device 14-2, monitoring device difference It is connect with PLC control system 11, pressure is adjusted for monitoring pressure, and by gas control valve 12, is additionally provided with simultaneously The structure proximate mentioned in the spare mechanism of pressure regulation, the part-structure and background technique, details are not described herein.
More than, it is merely preferred embodiments of the present invention, but scope of protection of the present invention is not limited thereto, it is any It is familiar with the people of the technology within the technical scope disclosed by the invention, any changes or substitutions that can be easily thought of, should all cover at this Within the protection scope of invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.

Claims (7)

1. air-conditioning storing grain device comprising carbon dioxide inlet, the carbon dioxide inlet is connected with heating control system, described Heating control system includes main gasifier, first flow control valve, temperature-detecting device, flow gauge, the first flow Control valve, the temperature-detecting device, the flow gauge and PLC control system electricly connect, it is characterised in that: described two Carbonoxide import is also connected with tonifying Qi gasifier, and the tonifying Qi gasifier passes through second flow control valve and the computer heating control system System connection, the second flow control valve are electricly connected with the PLC control system, and the air outlet temperature of the tonifying Qi gasifier is small In the air outlet temperature of the main gasifier.
2. air-conditioning storing grain device according to claim 1, it is characterised in that: the tonifying Qi gasifier passes through the second Control valve is connect with the main gasifier or with the main gasifier exit.
3. air-conditioning storing grain device according to claim 1, it is characterised in that: the main gasifier and the first flow control It is also connected with heater, the tonifying Qi gasifier and the heater between valve processed or passes through with the heater outlet described The connection of second flow control valve, the heater are electricly connected with the PLC control system.
4. air-conditioning storing grain device according to claim 1, it is characterised in that: the main gasifier be also connected with it is described The gas control valve that PLC control system electricly connects.
5. air-conditioning storing grain device according to claim 1, it is characterised in that: between the main gasifier and the heater It is additionally provided with return-air duct, the return-air duct is equipped with return-air shut-off valve.
6. air-conditioning storing grain device according to claim 1 or 5, it is characterised in that: the main gasifier and the titanium dioxide It is equipped with the first shut-off valve between carbon import, the second shut-off valve is equipped between the tonifying Qi gasifier and the carbon dioxide inlet.
7. air-conditioning storing grain device according to claim 1 or 2 or 3, it is characterised in that: the main gasifier and the tonifying Qi Air-heating type gasifier is respectively adopted in gasifier.
CN201910500132.3A 2019-06-11 2019-06-11 Air-conditioning storing grain device Pending CN110150376A (en)

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Application Number Priority Date Filing Date Title
CN201910500132.3A CN110150376A (en) 2019-06-11 2019-06-11 Air-conditioning storing grain device

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Application Number Priority Date Filing Date Title
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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201464706U (en) * 2009-04-23 2010-05-12 上海理工大学 Low-temperature microscope cold source system by utilizing high-pressure nitrogen as refrigerant
CN106122760A (en) * 2016-06-22 2016-11-16 中国天辰工程有限公司 The control system of a kind of LNG gasification process cold energy use and control method thereof
CN207410972U (en) * 2017-11-20 2018-05-29 成都佳佩科技发展有限公司 greenhouse carbon dioxide control system based on wireless communication
CN109566735A (en) * 2018-11-05 2019-04-05 常州飞云能源设备科技有限公司 A kind of movable carbon dioxide air-conditioning storing grain device
CN208804458U (en) * 2018-08-13 2019-04-30 中国寰球工程有限公司 The integrated control system of air-heating type gasifier and electric heater
CN208901583U (en) * 2018-08-01 2019-05-24 广东省现代农业装备研究所 A kind of device of controllable bagged grain antistaling storing
CN210432758U (en) * 2019-06-11 2020-05-01 常州飞云能源设备科技有限公司 Air-conditioning grain storage device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201464706U (en) * 2009-04-23 2010-05-12 上海理工大学 Low-temperature microscope cold source system by utilizing high-pressure nitrogen as refrigerant
CN106122760A (en) * 2016-06-22 2016-11-16 中国天辰工程有限公司 The control system of a kind of LNG gasification process cold energy use and control method thereof
CN207410972U (en) * 2017-11-20 2018-05-29 成都佳佩科技发展有限公司 greenhouse carbon dioxide control system based on wireless communication
CN208901583U (en) * 2018-08-01 2019-05-24 广东省现代农业装备研究所 A kind of device of controllable bagged grain antistaling storing
CN208804458U (en) * 2018-08-13 2019-04-30 中国寰球工程有限公司 The integrated control system of air-heating type gasifier and electric heater
CN109566735A (en) * 2018-11-05 2019-04-05 常州飞云能源设备科技有限公司 A kind of movable carbon dioxide air-conditioning storing grain device
CN210432758U (en) * 2019-06-11 2020-05-01 常州飞云能源设备科技有限公司 Air-conditioning grain storage device

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