CN204588702U - There is the grain storage nitrogen gas generating system of hold-down gear - Google Patents
There is the grain storage nitrogen gas generating system of hold-down gear Download PDFInfo
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- CN204588702U CN204588702U CN201520187847.5U CN201520187847U CN204588702U CN 204588702 U CN204588702 U CN 204588702U CN 201520187847 U CN201520187847 U CN 201520187847U CN 204588702 U CN204588702 U CN 204588702U
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Abstract
The utility model relates to the grain storage nitrogen gas generating system with hold-down gear, be communicated with air compression system, air cushioning system, air-purification system, pressure-variable adsorption oxygen nitrogen separation system, nitrogen buffering system, end-filtration system successively, air-purification system is communicated with freeze drier, tertiary filter, gac molecular sieve purification device successively, and internal system is provided with automatic blowdown valve; Pressure-variable adsorption oxygen nitrogen separation system comprises the adsorption tower that inside is provided with carbonaceous molecular sieve; Described adsorption tower top is fixed with the hold-down gear of pneumatic linear actuator formula.By setting up gac molecular sieve purification device, purifying treatment is carried out to pressurized air, there is good deoiling effect, guarantee that the carbonaceous molecular sieve of nitrogen-making device inside can not because of oil pollution " poisoning ", and reduce " the absorption load " of molecular sieve, thus the problem that the nitrogen gas purity of preparation efficiency that is low and preparation is large can not be caused; Hold-down gear be that the powder phenomenon-tion avoiding molecular sieve in adsorption tower is set.
Description
Technical field
The utility model relates to nitrogen gas generating system field, particularly, relates to the grain storage nitrogen gas generating system with hold-down gear.
Background technology
grain is the basic substance that the mankind depend on for existence, and food problem is related to the development of society and the stable of people's lives, and along with scientific and technological progress and people's growth in the living standard, consumers in general more and more pay close attention to grain quality and food safety.Different seasons and different regions produce different grain, therefore, not short in order to ensure grain, need by storing grain, macro adjustments and controls are carried out in unification, but grain under certain conditions, as easily mouldy under the environment such as high temperature, high humidity, if process not in time, grain is easy moldy metamorphism just; And grain also can be subject to insect pest, mouldy grain, the grain had turned sour, ablastous seed grain just loses original use value, causes serious financial loss, and the life that seriously also can have influence on market prices and its people is stablized.Therefore, the storage work of grain becomes extremely important.
Grain is in the process stored, and the changes such as grain feelings such as temperature, humidity, moisture, insect pest can have influence on quality and the quantity of grain.The major way of current state inside control grain storage pest utilizes phosphuret-(t)ed hydrogen to fumigate, phosphine gas has certain toxicity to people and animals, remaining on grain, also destruction is had to environment, along with people are to the continuous expansion of the demand of green food, controlled atmosphere insecticidal technology is subject to people's attention gradually, and gas good stability, security are high, therefore generally all adopt nitrogen as the source of the gas of controlled atmosphere desinsection; The undesirable carbonaceous molecular sieve of the nitrogen-making device inside of system rear class that causes of the filter oil removing of existing nitrogen gas generating system because of oil pollution " poisoning ", and reduces " the absorption load " of molecular sieve, causes nitrogen effect processed bad and the purity of nitrogen of preparation is lower; The molecular sieve in adsorption tower of existing nitrogen gas generating system easily occurs powder phenomenon-tion and maintenance is more difficult.
Utility model content
Technical problem to be solved in the utility model is to provide the grain storage nitrogen gas generating system with hold-down gear, with the undesirable carbonaceous molecular sieve of the nitrogen-making device inside of system rear class that causes of the filter oil removing overcoming existing nitrogen gas generating system because of oil pollution " poisoning ", and reduce " the absorption load " of molecular sieve, cause nitrogen effect processed bad and the more difficult problem of maintenance easily appears powder phenomenon-tion compared with the molecular sieve in adsorption tower of, nitrogen gas generating system and in the purity of the nitrogen of preparation.
The technical scheme in the invention for solving the above technical problem is: the grain storage nitrogen gas generating system with hold-down gear, it is characterized in that, be communicated with air compression system, air cushioning system, air-purification system, pressure-variable adsorption oxygen nitrogen separation system, nitrogen buffering system, end-filtration system successively, described air compression system is air compressor machine; Air cushioning system is air accumulator, and the import of air accumulator is connected with the outlet of air compressor machine; Air-purification system is communicated with freeze drier, tertiary filter, gac molecular sieve purification device successively, internal system is provided with automatic blowdown valve, the import of freeze drier is connected with the outlet of air accumulator, the outlet of freeze drier is connected with the import of tertiary filter, and the outlet of tertiary filter is connected with the import of gac molecular sieve purification device; Pressure-variable adsorption oxygen nitrogen separation system comprises adsorption tower, the controller that inside is provided with carbonaceous molecular sieve, and the import of adsorption tower is connected with the outlet of gac molecular sieve purification device; Nitrogen buffering system is nitrogen buffer tank, and the import of nitrogen buffer tank is connected with the outlet of adsorption tower; End-filtration system is the cleaner that inside is provided with nano photo-catalytic filtering net, two ultraviolet sterilization lamp, negative ion, and the import of cleaner is connected with the outlet of nitrogen buffer tank, and the outlet of cleaner is connected with nitrogen device; Described adsorption tower top is fixed with hold-down gear, hold-down gear comprises flange, flange is provided with cylinder block, piston is provided with in cylinder body, piston is provided through the compressor arm of flange, the end of compressor arm is provided with pressing plate, the airway be connected is provided with intake valve, airway is provided with tensimeter with cylinder body.Tertiary filter specifically points out oil strainer, except water filter, dust removal filter, existing nitrogen gas generating system only takes oil removing water-dust removing tertiary filter in air purification process, but oil content has the adhesion of not easy-clear, oil removing is undesirable, the undesirable carbonaceous molecular sieve of the nitrogen-making device inside of system rear class that causes of the filter oil removing of existing nitrogen gas generating system is because of oil pollution " poisoning ", and reduce " the absorption load " of molecular sieve, cause nitrogen effect processed bad and the purity of nitrogen of preparation is lower, air of the present utility model is after air compressor compression, and enter into air accumulator, air accumulator plays shock absorption, carries out preliminary cooling, oily water separation, voltage stabilizing to gas, pressurized air enters into freeze drier lyophilize after air accumulator buffering, again through tertiary filter oil removing water-dust removing, and then further purifying treatment is carried out to pressurized air through gac molecular sieve purification device, because gac molecular sieve has stronger adsorption, absorption property is stablized and speed, there is good deoiling effect, it is larger than general filter core treatment capacity, and the life-span is longer, guarantee that the carbonaceous molecular sieve of nitrogen-making device inside can not because of oil pollution " poisoning ", and reduce " the absorption load " of molecular sieve, thus the problem that the nitrogen gas purity of preparation efficiency that is low and preparation is large can not be caused, special configuration polarity formula automatic blowdown valve, effective automatic pollution discharge, save manual trouble, pressurized air after purification enters into the preparation that nitrogen is carried out in adsorption tower inside, first the nitrogen separated from adsorption tower flow into nitrogen buffer tank, and with equalized pressure and purity fluctuation, the system of guarantee is rear level system supply nitrogen continuously and stably, and nitrogen buffer tank can also meet the needs improving rapidly adsorption tower internal pressure, the utility model has additional in the outlet of nitrogen buffer tank the cleaner that inside is provided with nano photo-catalytic filtering net, two ultraviolet sterilization lamp, negative ion, further purifying treatment is carried out to prepared nitrogen, nano photo-catalytic filtering net has higher filter effect, two ultraviolet sterilization lamp can carry out germicidal treatment to the nitrogen of preparation, negative ion can suppress the generation of oxygen, guarantee that the purity of nitrogen is unaffected, and then the purity of terminal nitrogen and quality, hold-down gear is not had in the adsorption tower of existing nitrogen gas generating system, or simple employing spring application, do not have hold-down gear, equipment runs and substantially just cannot run afterwards for 1 to 2 years, and maintenance difficult, spring application compresses mode, and then working life is short, and it is unreliable, once occur sinking after molecular sieve work for some time, spring just easily loses the pressuring action of itself and the standby of spring is pressed little, or occur spring stress uneven and press askew, very easily cause molecular sieve, maintenance is also more difficult, the utility model adopts air-cylinder type hold-down gear, in work, flange is fixed on adsorption tower tower top, promotes compressor arm by the mobile of piston, and then moving press plate, pressing plate and molecular sieve contact squeeze, the pressing plate of hold-down gear moves down with molecular sieve and moves down, and keeps tight impaction state for a long time, effectively ensures that play powder phenomenon-tion does not appear in molecular sieve, and convenience easy to maintenance, ensure that the long-term stability of equipment uses.
Further, described adsorption tower comprises adsorption tower A, adsorption tower B, the import of adsorption tower A, adsorption tower B is connected with the outlet of gac molecular sieve purification device, and adsorption tower A, the outlet of adsorption tower B are connected with the import of nitrogen buffer tank, and is provided with pipe connecting between adsorption tower A, adsorption tower B.When pressurized air clean after purification enters adsorption tower A inlet end, air-flow through gas distributor diffusion after again through carbonaceous molecular sieve to Outlet-side flow time, O2, CO2 and H2O are adsorbed, product nitrogen gas is exported by adsorption tower A and flows out, after for some time, the carbonaceous molecular sieve absorption of adsorption tower A inside is saturated.At this moment, A tower stops absorption automatically, and carries out an of short duration pressure equalizing to adsorption tower B, thus improves rapidly adsorption tower B pressure and reach the object improving nitrogen efficiency processed simultaneously, after all having pressed, pressurized air flows into adsorption tower B and carries out oxygen uptake product nitrogen, adsorption tower A molecular sieve is regenerated simultaneously, the regeneration of molecular sieve is by adsorption tower is dropped rapidly to normal pressure, thus remove the O2 adsorbed, CO2, H2O realizes, two towers hocket absorption, all press and regenerate, complete oxygen nitrogen to be separated, continuous output products nitrogen, whole process is controlled automatically by PLC entirely, what is called is all pressed, be exactly that two towers are communicated with, a tower is specifically referred to, and the gas flow another tower treating desorption tower specifically refers to tower upon adsorption, finally reach the gaseous tension basic equalization of two towers.
Further, air compressor machine adopts screw air compressor.The pressurized air impurity prepared through screw air compressor is less, can meet the requirement of nitrogen-making device to source of the gas.
Further, be provided with in cylinder block and run through cylinder block and through the tail rod of piston.The movement of piston is played to the effect of guiding, be conducive to moving up and down of piston, guarantee that piston can not offset in vertical direction.
Further, the lower end of tail rod upper piston is provided with carbon potential alarm unit.Carbon potential alarm unit plays spacing effect, and after molecular sieve is compressed to the limit, carbon potential alarm unit is reported to the police, and stops the movement of piston, avoids the supercompression of molecular sieve.
To sum up, the beneficial effects of the utility model are:
1, air cleaning unit of the present utility model carries out purifying treatment to pressurized air further by setting up gac molecular sieve purification device, because gac molecular sieve has stronger adsorption, absorption property is stablized and speed, there is good deoiling effect, it is larger than general filter core treatment capacity, and the life-span is longer, guarantee that the carbonaceous molecular sieve of nitrogen-making device inside can not because of oil pollution " poisoning ", and reduce " the absorption load " of molecular sieve, thus the problem that the nitrogen gas purity of preparation efficiency that is low and preparation is large can not be caused.
2, the utility model is by having additional the cleaner that inside is provided with nano photo-catalytic filtering net, two ultraviolet sterilization lamp, negative ion in the outlet of nitrogen buffer tank, further purifying treatment is carried out to prepared nitrogen, nano photo-catalytic filtering net has higher filter effect, two ultraviolet sterilization lamp can carry out germicidal treatment to the nitrogen of preparation, negative ion can suppress the generation of oxygen, guarantee that the purity of nitrogen is unaffected, and then the purity of terminal nitrogen and quality.
3, the utility model adopt two towers hocket absorption, all press and regenerate, complete oxygen nitrogen and be separated, continuous output products nitrogen, improves the preparation efficiency of nitrogen and alleviates the load of adsorption tower.
4, the utility model adopts air-cylinder type hold-down gear, in work, under the promotion of piston, the pressing plate of hold-down gear moves down with molecular sieve and moves down, the tight impaction state of long-term maintenance, there is not play powder phenomenon-tion in effective guarantee molecular sieve, and convenience easy to maintenance, ensure that the long-term stability of equipment uses.
Accompanying drawing explanation
Fig. 1 is process flow sheet of the present utility model;
Fig. 2 is the structural representation of hold-down gear.
Mark and corresponding component title in accompanying drawing:
1-cylinder block; 2-flange; 3-compressor arm; 4-pressing plate; 5-carbon potential alarm unit; 6-intake valve; 7-tensimeter; 8-tail rod; 9-piston.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but embodiment of the present utility model is not limited thereto.
Embodiment:
As shown in Figure 1 and Figure 2, there is the grain storage nitrogen gas generating system of hold-down gear, be communicated with air compression system, air cushioning system, air-purification system, pressure-variable adsorption oxygen nitrogen separation system, nitrogen buffering system, end-filtration system successively, described air compression system is screw air compressor; Air cushioning system is air accumulator, and the import of air accumulator is connected with the outlet of air compressor machine; Air-purification system is communicated with freeze drier, tertiary filter, gac molecular sieve purification device successively, internal system is provided with automatic blowdown valve, the import of freeze drier is connected with the outlet of air accumulator, the outlet of freeze drier is connected with the import of tertiary filter, and the outlet of tertiary filter is connected with the import of gac molecular sieve purification device; Pressure-variable adsorption oxygen nitrogen separation system comprises adsorption tower A, adsorption tower B, the controller that inside is provided with carbonaceous molecular sieve, and the import of adsorption tower A, adsorption tower B is connected with the outlet of gac molecular sieve purification device, is provided with pipe connecting between adsorption tower A and adsorption tower B; Nitrogen buffering system is nitrogen buffer tank, and nitrogen buffer tank is provided with tensimeter, and the import of nitrogen buffer tank is connected with the outlet of adsorption tower B, adsorption tower A; End-filtration system is the cleaner that inside is provided with nano photo-catalytic filtering net, two ultraviolet sterilization lamp negative ion, and the import of cleaner is connected with the outlet of nitrogen buffer tank, and the outlet of cleaner is connected with nitrogen device; Described adsorption tower top is fixed with hold-down gear, hold-down gear comprises flange 2, flange 2 is provided with cylinder block 1, be provided with piston 9 in cylinder body 1, be provided with in cylinder block 1 and run through cylinder block 1 and the tail rod 8 passing piston 9, the lower end of tail rod 8 upper piston 9 is provided with carbon potential alarm unit 5, piston 9 is provided through the compressor arm 3 of flange 2, the end of compressor arm 3 is provided with pressing plate 4, the airway be connected is provided with intake valve 6 with cylinder body 1, airway is provided with tensimeter 7.
Principle of work of the present utility model: air, after air compressor compression, enters into air accumulator, carries out preliminary cooling, oily water separation, voltage stabilizing to gas, pressurized air enters into freeze drier lyophilize, carries out purifying treatment to pressurized air further through tertiary filter oil removing water-dust removing and then through gac molecular sieve purification device again after air accumulator buffering, pressurized air after purification enters into the preparation that nitrogen is carried out in adsorption tower A inside, first the nitrogen separated from adsorption tower A flow into nitrogen buffer tank, after the molecular formula absorption in adsorption tower A is saturated, adsorption tower A stops absorption automatically, and to the capable of short duration pressure equalizing of adsorption tower B tower, after all having pressed, pressurized air flows into adsorption tower B and carries out oxygen uptake product nitrogen, A tower molecular sieve is regenerated simultaneously thus improve rapidly adsorption tower B pressure and reach the object improving nitrogen efficiency processed simultaneously, with equalized pressure and purity fluctuation, guarantee system is rear level system supply nitrogen continuously and stably, nitrogen buffer tank can also meet the needs improving rapidly adsorption tower internal pressure, the nitrogen of nitrogen buffer tank is provided with the cleaner of nano photo-catalytic filtering net, two ultraviolet sterilization lamp, negative ion through inside, further purifying treatment is carried out to prepared nitrogen, nano photo-catalytic filtering net has higher filter effect, two ultraviolet sterilization lamp can carry out germicidal treatment to the nitrogen of preparation, negative ion can suppress the generation of oxygen, guarantee that the purity of nitrogen is unaffected, and then the purity of terminal nitrogen and quality, in work, flange 2 is fixed on adsorption tower tower top, compressor arm 3 is promoted by the mobile of piston 9, and then moving press plate 4, pressing plate 4 and molecular sieve contact squeeze, the pressing plate 4 of hold-down gear moves down with molecular sieve and moves down, the tight impaction state of long-term maintenance, there is not play powder phenomenon-tion in effective guarantee molecular sieve, and convenience easy to maintenance, ensure that the long-term stability of equipment uses.
As mentioned above, the utility model can be realized preferably.
Claims (5)
1. there is the grain storage nitrogen gas generating system of hold-down gear, it is characterized in that, be communicated with air compression system, air cushioning system, air-purification system, pressure-variable adsorption oxygen nitrogen separation system, nitrogen buffering system, end-filtration system successively, described air compression system is air compressor machine; Air cushioning system is air accumulator, and the import of air accumulator is connected with the outlet of air compressor machine; Air-purification system is communicated with freeze drier, tertiary filter, gac molecular sieve purification device successively, internal system is provided with automatic blowdown valve, the import of freeze drier is connected with the outlet of air accumulator, the outlet of freeze drier is connected with the import of tertiary filter, and the outlet of tertiary filter is connected with the import of gac molecular sieve purification device; Pressure-variable adsorption oxygen nitrogen separation system comprises adsorption tower, the controller that inside is provided with carbonaceous molecular sieve, and the import of adsorption tower is connected with the outlet of gac molecular sieve purification device; Nitrogen buffering system is nitrogen buffer tank, and the import of nitrogen buffer tank is connected with the outlet of adsorption tower; End-filtration system is the cleaner that inside is provided with nano photo-catalytic filtering net, two ultraviolet sterilization lamp, negative ion, and the import of cleaner is connected with the outlet of nitrogen buffer tank, and the outlet of cleaner is connected with nitrogen device; Described adsorption tower top is fixed with hold-down gear, hold-down gear comprises flange (2), flange (2) is provided with cylinder block (1), piston (9) is provided with in cylinder body (1), piston (9) is provided through the compressor arm (3) of flange (2), the end of compressor arm (3) is provided with pressing plate (4), the airway be connected is provided with intake valve (6) with cylinder body (1), airway is provided with tensimeter (7).
2. the grain storage nitrogen gas generating system with hold-down gear according to claim 1, it is characterized in that, described adsorption tower comprises adsorption tower A, adsorption tower B, the import of adsorption tower A, adsorption tower B is connected with the outlet of gac molecular sieve purification device, adsorption tower A, the outlet of adsorption tower B are connected with the import of nitrogen buffer tank, and are provided with pipe connecting between adsorption tower A, adsorption tower B.
3. the grain storage nitrogen gas generating system with hold-down gear according to claim 1 and 2, is characterized in that, described air compressor machine adopts screw air compressor.
4. the grain storage nitrogen gas generating system with hold-down gear according to claim 1, is characterized in that, is provided with and runs through cylinder block (1) and the tail rod (8) passing piston (9) in described cylinder block (1).
5. the grain storage nitrogen gas generating system with hold-down gear according to claim 4, is characterized in that, the lower end of described tail rod (8) upper piston (9) is provided with carbon potential alarm unit (5).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520187847.5U CN204588702U (en) | 2015-03-31 | 2015-03-31 | There is the grain storage nitrogen gas generating system of hold-down gear |
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| CN201520187847.5U CN204588702U (en) | 2015-03-31 | 2015-03-31 | There is the grain storage nitrogen gas generating system of hold-down gear |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107185691A (en) * | 2017-07-10 | 2017-09-22 | 河北锐智纳米科技有限公司 | The Cosan ultimogeniture producing line protected based on nitrogen |
| CN111232937A (en) * | 2020-03-03 | 2020-06-05 | 杭州誉顺科技有限公司 | Multi-tower cyclic pressure swing adsorption nitrogen production device and method |
| CN111921337A (en) * | 2020-07-24 | 2020-11-13 | 浙江勤策空分设备有限公司 | Pressure swing adsorption method of nitrogen |
| CN111943148A (en) * | 2020-07-24 | 2020-11-17 | 浙江勤策空分设备有限公司 | Pressure swing adsorption nitrogen equipment |
-
2015
- 2015-03-31 CN CN201520187847.5U patent/CN204588702U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107185691A (en) * | 2017-07-10 | 2017-09-22 | 河北锐智纳米科技有限公司 | The Cosan ultimogeniture producing line protected based on nitrogen |
| CN107185691B (en) * | 2017-07-10 | 2020-04-14 | 河北锐智纳米科技有限公司 | Sulfur powder production line based on nitrogen protection |
| CN111232937A (en) * | 2020-03-03 | 2020-06-05 | 杭州誉顺科技有限公司 | Multi-tower cyclic pressure swing adsorption nitrogen production device and method |
| CN111921337A (en) * | 2020-07-24 | 2020-11-13 | 浙江勤策空分设备有限公司 | Pressure swing adsorption method of nitrogen |
| CN111943148A (en) * | 2020-07-24 | 2020-11-17 | 浙江勤策空分设备有限公司 | Pressure swing adsorption nitrogen equipment |
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