CN209507589U - A kind of air-conditioned cold store nitrogen making machine with detection system - Google Patents
A kind of air-conditioned cold store nitrogen making machine with detection system Download PDFInfo
- Publication number
- CN209507589U CN209507589U CN201822041539.8U CN201822041539U CN209507589U CN 209507589 U CN209507589 U CN 209507589U CN 201822041539 U CN201822041539 U CN 201822041539U CN 209507589 U CN209507589 U CN 209507589U
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- air
- nitrogen
- cold store
- conditioned cold
- canister
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Abstract
The utility model discloses a kind of air-conditioned cold store nitrogen making machine with detection system, including A charcoal canister, B activity canister, pressure pump, vacuum pump, PLC, control panel, oxygen capnograph, A charcoal canister, B activity canister, pressure pump, pipeline is passed sequentially through between vacuum pump and air-conditioned cold store to connect to form nitrogen cycle system processed, the signal input part of each component and PLC connect in nitrogen cycle system processed, the signal output end of PLC is connected with control panel and oxygen capnograph, the nitrogen outlet of nitrogen cycle system processed uses double duct system, high flow capacity nitrogen outlet valve is respectively equipped on twin flue, low discharge nitrogen outlet valve, low energy consumption for the utility model, full-automatic work, it is easy to operate, facilitate the detection of oxygen carbon dioxide gas in input/output test and air-conditioned cold store.
Description
Technical field
The utility model relates to fruit and vegetable air-conditioning preservation equipment technical field, in particular to a kind of air-conditioned cold store with detection system
Nitrogen making machine.
Background technique
Air-conditioned cold store is a kind of nitrogen gas generating system by membrane for carrying out nitrogen oxygen separating at normal temperature using more nitrogen making machine at present, it by
Air compressor machine and membrane separator composition.Vapor, CO2 and O2 of the compressed air after filter enters membrane separator, in air
The other side that fast strikethrough membranous wall enters film is emptied by enrichment, and nitrogen is slow through the relative speed of membranous wall and stays in film, is enriched with
Nitrogen afterwards is sent in air-conditioned cold store as product gas.
What film nitrogen making machine was taken is that open-type takes gas, and gas vent is high pressure, and gas source temperature has the needs of heating, therefore
To fruit required temperature in library from heat gas to cooling gas, whole process not only wastes energy consumption, also will cause in air-conditioned cold store
The fluctuation of temperature, stimulation fruits and vegetables breathe, are unfavorable for fresh-keeping.And when nitrogen purity processed is higher than 95%, film nitrogen making machine efficiency can be more next
Lower, flow becomes very little, therefore in the case where purity and flow all need to take into account, and the drop oxygen effect of film nitrogen making machine also has one
Fixed limitation.In addition, most important component --- film in nitrogen gas generating system by membrane has sternly purification filtering early period due to being afraid of to pollute
The requirement of lattice is directly related to the service life of film group.If filtration, purification is out of joint, it is necessary to replace film group, maintenance cost phase
To higher.
A kind of air-conditioned cold store of CN201621158691.9 has the advantages of high-efficient, low power consuming with nitrogen making machine, solves film system
A series of deficiencies of nitrogen, but gas outlet small-large flow needs manually to intervene, the drop oxygen being unfavorable in later period library, furthermore does not have
Display system, can not observation device each section movement, can not display alarm information, need after there is alarm failure by a row
It looks into, very clear cannot know failure cause, while also without gas detecting system, excessively dependence CO2 remover, behaviour
Excessive controlled CO2 remover is controlled, is unable to measure the concentration of oxygen in library, starting stops can not autonomous control.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of air-conditioned cold store nitrogen making machine with detection system.
A kind of air-conditioned cold store system with detection system that achieve the above objectives, the present invention provides the following technical solutions:
Nitrogen machine, including A charcoal canister, B activity canister, pressure pump, vacuum pump, PLC, control panel, oxygen capnograph, institute
It states and passes sequentially through pipeline between A charcoal canister, B activity canister, pressure pump, vacuum pump and air-conditioned cold store and connect to form nitrogen cycle system processed
It uniting, the signal input part of each component and PLC connection in the nitrogen cycle system processed, PLC acquire nitrogen cycle system dynamic data processed,
Nitrogen cycle various parts working condition processed is transmitted to the control panel connecting with the signal output end of PLC, it will be in air-conditioned cold store
Oxygen gas concentration lwevel is transferred to the signal output end oxygen capnograph with PLC, realizes in nitrogen cycle system processed
The real-time detection and adjustment of oxygen gas concentration lwevel in each unit status and air-conditioned cold store, the nitrogen of the nitrogen cycle system processed
Outlet uses double duct system, is respectively equipped with high flow capacity nitrogen outlet valve, low discharge nitrogen outlet valve on twin flue, passes through opening
The flow velocity of nitrogen and the control of concentration in air-conditioned cold store are realized with closing high flow capacity nitrogen outlet valve, low discharge nitrogen outlet valve.
Preferably, the active carbon filled in the A charcoal canister, B activity canister is CMS-F.
Preferably, the connecting pipe of the nitrogen cycle system processed includes admission line, regenerates pipeline and outlet pipe, into
Feed channel is equipped with airometer, and admission line one end is connect with air-conditioned cold store gas outlet, and the other end is connected with the entrance of pressure pump, pressure
The outlet end of power pump is connected with the air inlet of the air inlet of A charcoal canister, B activity canister respectively by pipeline, regenerates pipeline
For threeway connection, one end is connected with the entrance of vacuum pump, in addition both ends respectively with the air inlet of A charcoal canister, B activity canister
Air inlet is connected；Outlet pipe is equipped with airometer, and outlet pipe one end connect with air-conditioned cold store air inlet, the other end respectively with
The gas outlet of A charcoal canister, the gas outlet of B activity canister are connected.
Preferably, an atmosphere duct communicated with atmosphere is drawn on the admission line, atmosphere duct is equipped with air
Operation valve.
Preferably, the pipeline between the outlet end of the pressure pump and the air inlet of A charcoal canister is equipped with two-bit triplet
Valve sets two-position three-way valve on the pipeline between the outlet end of pressure pump and the air inlet of B activity canister.
Preferably, the pipeline between the arrival end of the vacuum pump and the air inlet of A charcoal canister is equipped with two-bit triplet
Valve, the pipeline between the arrival end of vacuum pump and the air inlet of B activity canister are equipped with two-position three-way valve.
Preferably, the outlet pipe that the gas outlet of the A charcoal canister is connect with air-conditioned cold store air inlet is equipped with two three
Port valve, the outlet pipe that the gas outlet of B activity canister is connect with air-conditioned cold store air inlet are equipped with two-position three-way valve.
Preferably, the A charcoal canister exhaust port side is equipped with pressure gauge, and B activity canister exhaust port side is equipped with pressure gauge.
Preferably, connecting line between the PLC and nitrogen cycle system processed, control panel and oxygen capnograph
For 485 communication link wiring.
It is using the beneficial effect of above technical scheme:
1. the adjustable tank body pressure of the utility model nitrogen making machine, until optimal adsorption pressure 0.8bar, makes its initially nitrogen processed
Concentration can reach 95% or more, and later period nitrogen concentration even can achieve 99% or more, moreover, air-conditioned cold store nitrogen processed
Machine can also be by double tank body cycle operations, and when one of tank body is in absorption, another tank body is into parsing, and the two work is certainly
Dynamic switching, thus can uninterruptedly continuously generate nitrogen-rich gas, greatly improve air-conditioned cold store reduction of speed degree.
2. the utility model nitrogen making machine greatly improves nitrogen rate processed and nitrogen gas concn, after making using mixing nitrogen Transmission system
Phase nitrogen concentration can achieve 99% or more, realize the storage of air-conditioned cold store Ultra Low-oxygen.
3. the utility model air-conditioned cold store realizes that Ultra Low-oxygen is stored with nitrogen making machine, it can not only extend the storage period, it can be with
Fruit quality is improved, fruit economic value is directly enhanced.
4. low energy consumption for method for preparing nitrogen with nitrogen making machine for the utility model air-conditioned cold store, the cost of storage is reduced.Nitrogen making machine is not only
Low energy consumption for itself, and whole work process, hardly to additional heat is brought into air-conditioned cold store, generates storehouse temperature without heating
Fluctuate and increase the energy consumption of refrigeration system.
5. the utility model air-conditioned cold store nitrogen making machine full-automatic work, easy to operate, maintenance cost is low.
6. the utility model nitrogen making machine nitrogen outlet uses twin flue, that is, two-flow system, drop oxygen early period is using big pipe in library
Run-off pipeline guarantees flow velocity, and the later period drops oxygen and uses small diameter tube flow conduit, guarantees concentration, both can guarantee rapid oxygen reduction early period,
It can guarantee required nitrogen-rich gas in later period library again.
It, on the screen can be clear by being communicated with PLC 7. the utility model nitrogen making machine increases control panel
See equipment action of each part state, conveniently the debugging to each input and output point, the alarm occurred for action of each part are clear
Clear is displayed on the screen, and facilitates and is checked.
It, can be with oxygen and two in real-time detection library 8. the utility model nitrogen making machine increases the detection system to gas in library
The concentration of oxidation can be turned on or off drop oxygen according to situation in library, not be too dependent on the control of CO2 remover,
More independence.
Detailed description of the invention
Fig. 1 is the Transmission system figure of the utility model；
Fig. 2 is control panel and PLC catenation principle figure；
Fig. 3 is oxygen capnograph and PLC catenation principle figure.
Wherein, 1-air-conditioned cold store, 2-A charcoal canisters, 3-B activity canisters, 4-admission lines, 5-atmosphere ducts, 6-
Regenerate pipeline, 7-outlet pipes, 8-control panels, 9-PLC, 10-oxygen capnographs, B-pressure pump, V-
Vacuum pump, F1-2-airometer, K1-6-two-position three-way valve, P1-2-pressure gauge, H-high flow capacity nitrogen outlet valve, the low stream of L-
Measure nitrogen outlet valve, H2-air-operated valve.
Specific embodiment
The preferred embodiment that according to the present invention will be described in detail below with reference to the accompanying drawings.
Fig. 1 to Fig. 3 shows specific embodiment of the present utility model: a kind of air-conditioned cold store nitrogen making machine with detection system, packet
Include A charcoal canister 2, B activity canister 3, pressure pump B, vacuum pump V, PLC9, control panel 8, oxygen capnograph 10, A
Pipeline is passed sequentially through between charcoal canister 2, B activity canister 3, pressure pump B, vacuum pump V and air-conditioned cold store 1 to connect to form nitrogen cycle processed
System, the connecting pipe of nitrogen cycle system processed include admission line 4, regeneration pipeline 6 and outlet pipe 7, are set on admission line 4
There is airometer F2,4 one end of admission line is connect with 1 gas outlet of air-conditioned cold store, and the other end is connected with the entrance of pressure pump B, pressure pump B
Outlet end be connected respectively with the air inlet of the air inlet of A charcoal canister 2, B activity canister 3 by pipeline, on admission line 4
An atmosphere duct 5 communicated with atmosphere is drawn, atmosphere duct 5 is equipped with air-operated valve H2, and regeneration pipeline 6 leads to for three
It connects, one end is connected with the entrance of vacuum pump V, in addition the both ends air inlet with the air inlet of A charcoal canister 2, B activity canister 3 respectively
Mouth is connected；Outlet pipe 7 is equipped with airometer F1, and 7 one end of outlet pipe is connect with 1 air inlet of air-conditioned cold store, other end difference
It is connected with the gas outlet of the gas outlet of A charcoal canister 2, B activity canister 3.
The signal input part of each component and PLC9 are connected by 485 communication link wiring in nitrogen cycle system processed, PLC9 acquisition
Nitrogen cycle system dynamic data processed, by nitrogen cycle various parts working condition processed by 485 communication link wiring be transmitted to
The control panel 8 of the signal output end connection of PLC9, passes through 485 communication link wiring for oxygen gas concentration lwevel in air-conditioned cold store 1
Be transferred to the signal output end oxygen capnograph 10 with PLC9, realize in nitrogen cycle system processed each unit status and
The nitrogen outlet of the real-time detection and adjustment of oxygen gas concentration lwevel in air-conditioned cold store 1, nitrogen cycle system processed uses twin flue system
It unites, is respectively equipped with high flow capacity nitrogen outlet valve H, low discharge nitrogen outlet valve L on twin flue.
Pipeline between the outlet end of pressure pump B and the air inlet of A charcoal canister 2 is equipped with two-position three-way valve K5, pressure
It pumps and sets two-position three-way valve K6 on the pipeline between the outlet end of B and the air inlet of B activity canister 3；The arrival end and A of vacuum pump V
Pipeline between the air inlet of charcoal canister 2 is equipped with two-position three-way valve K3, the arrival end of vacuum pump V and B activity canister 3 into
Pipeline between port is equipped with two-position three-way valve K4；The outlet that the gas outlet of A charcoal canister 2 is connect with 1 air inlet of air-conditioned cold store
Pipeline is equipped with two-position three-way valve K1, and the outlet pipe that the gas outlet of B activity canister 3 is connect with 1 air inlet of air-conditioned cold store is equipped with
Two-position three-way valve K2；2 exhaust port side of A charcoal canister is equipped with pressure gauge P1, and 3 exhaust port side of B activity canister is equipped with pressure gauge P2.
The utility model nitrogen making machine uses two air pumps, a pressure pump B and a vacuum pump V, air in air-conditioned cold store 1
It is entered in A charcoal canister 2 or B activity canister 3 by pressure pump B effect, by the circulation of tank body, oxygen is by CSM-F activated carbon
Absorption, the nitrogen produced are entered in air-conditioned cold store 1, and storage initial stage needs a large amount of nitrogen, open high flow capacity nitrogen outlet valve H, are protected
Card there are a large amount of nitrogen to enter in air-conditioned cold store 1, in later period library oxygen concentration it is very low but will be highly concentrated in order to maintain hypoxemia to need
The nitrogen of degree continues to be input in air-conditioned cold store 1, needs to close high flow capacity nitrogen outlet valve H at this time, opens low discharge nitrogen outlet
Valve L.In vacuum revolution adsorption process, the content, air velocity, the intracorporal air pressure of tank of oxygen in tank body air inlet gas
The residual quantity of oxygen in tank body outlet gas can be influenced, both the concentration of nitrogen:
Oxygen content is low in air inlet gas --- separation for the being easy to oxygen molecule and nitrogen molecular --- nitrogen gas concn produced
It is high；
The nitrogen gas concn of air velocity height --- Oxygen Adsorption takes a short time --- generation is low；
Air velocity is low --- Oxygen Adsorption spends the time long ---, and the nitrogen gas concn of generation is high.
The utility model nitrogen making machine not only adjustable tank body pressure, until optimal adsorption pressure 0.8bar, makes it initially
Nitrogen concentration can reach 95% or more, and later period nitrogen concentration even can achieve 99% or more, can also be followed by double tank bodies
Ring work, when one of tank body is in absorption, another tank body automatically switches, thus may not be used into parsing, the two work
Interruption continuously generates nitrogen-rich gas, greatly improves air-conditioned cold store reduction of speed degree.
The detailed nitrogen process description processed of 1 vacuum of table revolution absorption
Deoxidation nitrogen making machine cardinal principle: the utility model nitrogen making machine generates nitrogen mainly by main to two kinds in air
Gas nitrogen and oxygen separated, pass through in charcoal canister fill CMS-F carbon realize two kinds of gas separation, CSM-F
Carbon has unique reticular structure, has extremely strong suction-operated to the oxygen in air, because oxygen minor structure is relative to nitrogen point
Son is smaller, it is easier to be shut off by CMS-F carbon reticular structure in its inner surface.The characteristic of CSM-F carbon to can be carried out under low pressure
The absorption of oxygen, tank body are in 0.8Bar to the optimum pressure of Oxygen Adsorption.
Mix nitrogen Transmission system: the utility model nitrogen making machine greatly improves nitrogen rate processed using mixing nitrogen Transmission system
And nitrogen gas concn, so that later period nitrogen concentration is can achieve 99% or more, realize the storage of air-conditioned cold store Ultra Low-oxygen, admission line 4 both with
The gas outlet of air-conditioned cold store 1 is connected and is connected again with the outside air of surrounding by atmosphere duct 5, oxygen in gas in air-conditioned cold store 1
Content is reduced with the supply of the nitrogen of generation, if oxygen content is low in the input gas for passing through CSM-F carbon-coating, is generated
Oxygen content in gas is relatively low, if the oxygen content of gas is lower in air-conditioned cold store 1 in input process, will improve nitrogen making machine
Nitrogen efficiency and concentration processed, the gas flow inputted in air-conditioned cold store 1 must be shorter than or the gas flow at least with the generation in air-conditioned cold store 1
It keeps equal, by airometer F1, F2 and air-operated valve H2, the record and adjustment to air-flow may be implemented.
The utility model nitrogen making machine increases control panel 8, on the screen can be clear by being communicated with PLC9
See equipment action of each part state, conveniently the debugging to each input and output point, the alarm occurred for action of each part are clear
Clear is displayed on the screen, and facilitates and is checked, while also adding the detection system to gas in library, can be with real-time detection library
The concentration of interior oxygen and titanium dioxide can be turned on or off drop oxygen according to situation in library, not be too dependent on carbon dioxide de
Except the control of machine, more independence.
Above-described is only preferred embodiments of the present invention, it is noted that for the ordinary skill of this field
For personnel, without departing from the concept of the present invention, various modifications and improvements can be made, these all belong to
In the protection scope of the utility model.
Claims (9)
1. a kind of air-conditioned cold store nitrogen making machine with detection system, including it is A charcoal canister (2), B activity canister (3), pressure pump (B), true
Sky pump (V), PLC (9), control panel (8), oxygen capnograph (10), it is characterised in that: the A charcoal canister
(2), B activity canister (3), pressure pump (B), pass sequentially through pipeline between vacuum pump (V) and air-conditioned cold store (1) and connect to form nitrogen processed and follow
Loop system, each component is connect with the signal input part of PLC (9) in the nitrogen cycle system processed, and PLC (9) acquires nitrogen cycle system processed
Nitrogen cycle various parts working condition processed, is transmitted to the control plane connecting with the signal output end of PLC (9) by system dynamic data
The interior oxygen gas concentration lwevel of air-conditioned cold store (1) is transferred to and the signal output end oxygen carboloy dioxide analysis of PLC (9) by plate (8)
Instrument (10) realizes the real-time detection of each unit status and the interior oxygen gas concentration lwevel of air-conditioned cold store (1) in nitrogen cycle system processed
With adjustment, the nitrogen outlet of the nitrogen cycle system processed uses double duct system, is respectively equipped with high flow capacity nitrogen on twin flue and goes out
Mouth valve (H), low discharge nitrogen outlet valve (L) pass through and open and close high flow capacity nitrogen outlet valve (H), low discharge nitrogen outlet
Valve (L) realizes the flow velocity of air-conditioned cold store (1) interior nitrogen and the control of concentration.
2. the air-conditioned cold store nitrogen making machine according to claim 1 with detection system, it is characterised in that: the A charcoal canister
(2), the active carbon filled in B activity canister (3) is CMS-F.
3. the air-conditioned cold store nitrogen making machine according to claim 1 with detection system, it is characterised in that: the nitrogen cycle system processed
Connecting pipe include admission line (4), regeneration pipeline (6) and outlet pipe (7), admission line (4) is equipped with airometer
(F2), admission line (4) one end is connect with air-conditioned cold store (1) gas outlet, and the other end is connected with the entrance of pressure pump (B), pressure pump
(B) outlet end is connected with the air inlet of the air inlet of A charcoal canister (2), B activity canister (3) respectively by pipeline, regeneration
Pipeline (6) is threeway connection, and one end is connected with the entrance of vacuum pump (V), the in addition both ends air inlet with A charcoal canister (2) respectively
Mouthful, the air inlet of B activity canister (3) is connected；Outlet pipe (7) is equipped with airometer (F1), outlet pipe (7) one end and gas
The connection of library (1) air inlet is adjusted, the other end is connected with the gas outlet of the gas outlet of A charcoal canister (2), B activity canister (3) respectively
It is logical.
4. the air-conditioned cold store nitrogen making machine according to claim 3 with detection system, it is characterised in that: the admission line (4)
One atmosphere duct (5) communicated with atmosphere of upper extraction, atmosphere duct (5) are equipped with air-operated valve (H2).
5. the air-conditioned cold store nitrogen making machine according to claim 1 with detection system, it is characterised in that: the pressure pump (B)
Pipeline between outlet end and the air inlet of A charcoal canister (2) is equipped with two-position three-way valve (K5), the outlet end of pressure pump (B)
Two-position three-way valve (K6) is set on pipeline between the air inlet of B activity canister (3).
6. the air-conditioned cold store nitrogen making machine according to claim 1 with detection system, it is characterised in that: the vacuum pump (V)
Pipeline between arrival end and the air inlet of A charcoal canister (2) is equipped with two-position three-way valve (K3), the arrival end of vacuum pump (V)
Pipeline between the air inlet of B activity canister (3) is equipped with two-position three-way valve (K4).
7. the air-conditioned cold store nitrogen making machine according to claim 1 with detection system, it is characterised in that: the A charcoal canister (2)
The outlet pipe that is connect with air-conditioned cold store (1) air inlet of gas outlet be equipped with two-position three-way valve (K1), B activity canister (3) goes out
The outlet pipe that port is connect with air-conditioned cold store (1) air inlet is equipped with two-position three-way valve (K2).
8. the air-conditioned cold store nitrogen making machine according to claim 1 with detection system, it is characterised in that: the A charcoal canister (2)
Exhaust port side is equipped with pressure gauge (P1), and B activity canister (3) exhaust port side is equipped with pressure gauge (P2).
9. the air-conditioned cold store nitrogen making machine according to claim 1 with detection system, it is characterised in that: the PLC (9) and nitrogen processed
Connecting line is 485 communication link wiring between the circulatory system, control panel (8) and oxygen capnograph (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822041539.8U CN209507589U (en) | 2018-12-06 | 2018-12-06 | A kind of air-conditioned cold store nitrogen making machine with detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822041539.8U CN209507589U (en) | 2018-12-06 | 2018-12-06 | A kind of air-conditioned cold store nitrogen making machine with detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209507589U true CN209507589U (en) | 2019-10-18 |
Family
ID=68194330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822041539.8U Expired - Fee Related CN209507589U (en) | 2018-12-06 | 2018-12-06 | A kind of air-conditioned cold store nitrogen making machine with detection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209507589U (en) |
-
2018
- 2018-12-06 CN CN201822041539.8U patent/CN209507589U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191018 Termination date: 20211206 |