CN203227409U - Regeneration control device of molecular sieve dehydration tower - Google Patents
Regeneration control device of molecular sieve dehydration tower Download PDFInfo
- Publication number
- CN203227409U CN203227409U CN 201320234152 CN201320234152U CN203227409U CN 203227409 U CN203227409 U CN 203227409U CN 201320234152 CN201320234152 CN 201320234152 CN 201320234152 U CN201320234152 U CN 201320234152U CN 203227409 U CN203227409 U CN 203227409U
- Authority
- CN
- China
- Prior art keywords
- molecular sieve
- valve
- processing unit
- central processing
- temperature sensor
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Drying Of Gases (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model relates to a regeneration control device of a molecular sieve dehydration tower. The device comprises a tower jar, a feed valve, a discharge valve, an air intake valve, an air evacuation valve, a molecular sieve, an electric heater and a PLC (Programmable Logic Controller) central processing unit. The device is characterized in that a temperature sensor is fixedly mounted on an external pipeline at the outlet end of the air evacuation valve, and an information output terminal of the temperature sensor is in line connection with an information input terminal of the PLC central processing unit through an A/D (Analog to Digital) converter. The device has the advantages that water removal, which is performed by the molecular sieve and is controlled according to fixed periods of time, is changed to be started in a timing manner, and the program control of stopping heating is performed when reaching the temperature, so that the energy conservation is realized, and the working efficiency in the whole process is improved.
Description
Technical field:
The utility model relates to the liquid CO 2 production equipment, particularly a kind of regenerating control device of molecular sieve dehydration tower.
Background technology:
The liquid CO 2 production process be will mainly contain the unstripped gas of chemical substances such as carbon dioxide, a small amount of sulphur through thick desulfurization, pressurization, hydrolysis, operations such as dehydration, secondary pressurization, smart desulfurization, molecular sieve dehydration, cooling liquid, smart gold-plating again.Molecular sieve dehydration is to carry out in the molecular sieve dehydration tower of sealing.
Molecular sieve is made up of tower jar, inlet valve, bleeder valve, intake valve, air bleeding valve, molecular sieve, electric heater, PLC central processing unit.Each valve is that magnetic valve and the import and export corresponding with the tower jar are communicated with; The electric heater air intake is equipped with air inlet valve, and the electric heater gas outlet is communicated with tower canister incoming gas valve, and the power switch control circuit of each magnetic valve automatically controlled circuit, electric heater is connected with PLC information output circuit respectively.Unstripped gas is after former procedures are handled, as intermediate products---middle gas is gone into tower by inlet valve, after the dehydration of multilayer molecular sieve, be sent to next procedure by the bleeder valve discharge, then be detained moisture behind the qi exhaustion water in the middle of filler makes in the molecular sieve, must anhydrate, dewater and periodically move repeatedly so technical process is middle qi exhaustion water, molecular sieve.It is that the molecular sieve of flowing through forced the delay water evaporates, is discharged by air bleeding valve with carbon dioxide after middle gas gas by the usefulness of anhydrating fed the electric heater heating that molecular sieve dewaters.And molecular sieve suction, the periodicity that dewaters move repeatedly be by the Zhou Chengxu that PLC sets control each magnetic valve, electric heater do the operation of batch (-type) break-make implement in the middle of gas circuit, the conversion of carbon dioxide heating gas circuit.
This cycle fortune regularly defective of running is: middle gas is influenced by various factors in preceding working procedure, water content there are differences, the air pressure of air inlet, flow velocity also can there are differences, then each spin cycle also there are differences in the water yield that molecular sieve is detained, and the electric heating time is by the regularly regularly programme-control of length of section by the PLC central processing unit, reach the requirement electric heater still in heating so existing dewaters, the waste electric energy.
Summary of the invention:
The objective of the invention is to overcome above-mentioned defective, a kind of regenerating control device of molecular sieve dehydration tower is provided.
Scheme of the present utility model is: comprise tower jar, inlet valve, bleeder valve, intake valve, air bleeding valve, molecular sieve, electric heater, PLC central processing unit, it is characterized in that: temperature sensor of section pipeline fixed installation outside the air bleeding valve port of export, described temperature sensor information output is connected with PLC central processing unit information input terminal circuit by A/D converter.
Advantage of the present utility model is: molecular sieve dewaters to be changed into regularly starting by section control regularly regularly and stops to heat program control by reaching temperature, and energy-conservation and whole process work efficiency improves.
Description of drawings:
Accompanying drawing is the utility model structural representation.
The specific embodiment:
The utility model comprises tower jar 5, inlet valve 1, bleeder valve 2, intake valve 7, air bleeding valve 4, molecular sieve 6, electric heater 8, PLC central processing unit, it is characterized in that: temperature sensor 3 of section pipeline fixed installation outside air bleeding valve 4 ports of export, described temperature sensor 3 information outputs are connected with PLC central processing unit information input terminal circuit by A/D converter.
In the PLC central processing unit, temperature sensor 3 input information and limit temperature are stopped the heat setting value and in comparator, compare, stop heating as long as the power switch control circuit of overcurrent temperature degree then electric heater 8 instruction electric heaters up to standard is closed.When heated air stream then cooling after molecular sieve 6 short water evaporates heat exchanges, after molecular sieve 6 was not done short water evaporates running, the overcurrent gas lift temperature of the air bleeding valve 4 of then flowing through was up to standard.When temperature 〉=200 ℃, stop heating.When temperature≤150 ℃, open heating.
After can also setting electric heater 8 and stopping heat, gas enters regularly section of dehydration procedure in the middle of starting in advance, improves the dehydrating tower utilization rate.
Claims (1)
1. the regenerating control device of a molecular sieve dehydration tower, comprise tower jar (5), inlet valve (1), bleeder valve (2), intake valve (7), air bleeding valve (4), molecular sieve (6), electric heater (8), PLC central processing unit, it is characterized in that: a section pipeline fixed installation temperature sensor (3) outside air bleeding valve (4) port of export, described temperature sensor (3) information output is connected with PLC central processing unit information input terminal circuit by A/D converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320234152 CN203227409U (en) | 2013-05-03 | 2013-05-03 | Regeneration control device of molecular sieve dehydration tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320234152 CN203227409U (en) | 2013-05-03 | 2013-05-03 | Regeneration control device of molecular sieve dehydration tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203227409U true CN203227409U (en) | 2013-10-09 |
Family
ID=49283559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320234152 Expired - Fee Related CN203227409U (en) | 2013-05-03 | 2013-05-03 | Regeneration control device of molecular sieve dehydration tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203227409U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105032114A (en) * | 2015-09-10 | 2015-11-11 | 内蒙古包钢钢联股份有限公司 | Energy-saving method for molecular sieve purification systems |
-
2013
- 2013-05-03 CN CN 201320234152 patent/CN203227409U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105032114A (en) * | 2015-09-10 | 2015-11-11 | 内蒙古包钢钢联股份有限公司 | Energy-saving method for molecular sieve purification systems |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203364503U (en) | System used for recovering steam and residual heat produced in tire vulcanization treating process | |
| CN203227409U (en) | Regeneration control device of molecular sieve dehydration tower | |
| CN104083986A (en) | Self-adaptive energy-saving type pressure swing adsorption separation system | |
| CN205291235U (en) | Component steam maintenance system | |
| CN201756483U (en) | Efficient water treatment device for steam boiler | |
| CN202422923U (en) | Restoring device for power transformer oil | |
| CN204019791U (en) | A kind of EGR of the plastic raw materials removal moisture drying stronger for hygroscopicity | |
| CN203798152U (en) | Negative pressure pump system of elevator furnace | |
| CN204311038U (en) | A kind of energy-saving natual gas dehydrate unit | |
| CN211025691U (en) | Thermal regeneration system of adsorbent | |
| CN203208901U (en) | Reverse osmosis system | |
| CN202869194U (en) | Connecting way of drying machine shell body thermal insulation adjoining pipe and steam coil | |
| CN201593034U (en) | Carbonization furnace | |
| CN202570185U (en) | Device for regenerating molecular sieve by virtue of waste heat of compressor | |
| CN202115805U (en) | High-viscosity raw material discharging device | |
| CN202087424U (en) | Horizontal scraper discharge centrifugal machine for alkali addition | |
| CN105417501A (en) | Cooling method for blower in sulfuric acid production | |
| CN102181955B (en) | Heat energy recovery device of heat water system for producing superfine and high-elastic rubber latex thread | |
| CN204352738U (en) | From heating control system | |
| CN110652835A (en) | Thermal regeneration system of adsorbent | |
| CN205127496U (en) | High -efficient clean coal filter pressing device | |
| CN204996304U (en) | Energy -conserving absorption formula compressor air drying device | |
| CN103755947A (en) | Continuous ethoxylation alcohol ether production device | |
| CN204039265U (en) | A kind of digestion mechanism for calcium hydroxide production line | |
| CN203980918U (en) | Waste heat overbottom pressure utilization system in gas washing in SA production |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20131009 Termination date: 20210503 |