CN201770739U - Protective gas reclaiming and recycling device for bell type bright annealing oven - Google Patents
Protective gas reclaiming and recycling device for bell type bright annealing oven Download PDFInfo
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- CN201770739U CN201770739U CN2010202717887U CN201020271788U CN201770739U CN 201770739 U CN201770739 U CN 201770739U CN 2010202717887 U CN2010202717887 U CN 2010202717887U CN 201020271788 U CN201020271788 U CN 201020271788U CN 201770739 U CN201770739 U CN 201770739U
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Abstract
The utility model relates to a protective gas reclaiming and recycling device for a bell type bright annealing oven. The protective gas reclaiming and recycling device is characterized in that a cooling condenser is arranged at the backflow protective gas outlet end of a bell type bright annealing oven group; a steam separator is arranged at the gas outlet end of the cooling condenser; the gas outlet end of the steam separator is connected with a preceding stage buffer tank; the gas outlet end of the preceding stage buffer tank is connected with the inlet of a Roots blower, and the outlet of the Roots blower is connected with an oil absorber; the gas outlet end of the oil absorber is connected with a deaerator; a cooler and a condenser are arranged at the gas outlet end of the deaerator in sequence; the gas outlet end of the condenser is connected with an adsorbent regeneration type drying device through the steam separator; a pure gas outlet end of the adsorbent regeneration type drying device is communicated with a backward stage buffer tank; and the backward stage buffer tank is connected into the bell type bright annealing oven group. The utility model has the advantages that backflow protective gas of the bell type bright annealing oven group is reclaimed and purified and enters the annealing oven as protective gas again to be recycled.
Description
Technical field
The utility model relates to the bell-jar bright annealing oven, relates in particular to bell-jar bright annealing oven protection gas recycle and reuse device.
Background technology
At present, the bell-jar bright annealing oven is mainly pure hydrogen or hydrogen rich gas with protection gas, and tail gas directly burns basically or to the atmosphere emptying, and it also only is as the burning gas recovery heat that burns with a part of gas that some producer reclaims.So not only wasted energy, and very dangerous.
Bell-jar bright annealing oven, the general protection gas that feeds are hydrogen or 75% hydrogen and 25% nitrogen mixture (hereinafter to be referred as protection gas).Require the annealed product to come out of the stove to finished product and generally want 24～72 hours from entering bell furnace, finish stove evacuation or the logical nitrogen of substitution gas except just beginning shove charge and annealing, other times all lead to protection gas, protect the tolerance of gas to be generally 12～20Nm
3/ h, this part protection gas reality active loss gas in operational process has only about 5%, and all the other protection gas directly burn or to the atmosphere emptying.
Therefore, design and develop a kind of equipment and the technology that the major part protection gas of waste can be recycled, have great importance.
The utility model content
The purpose of this utility model is to overcome the deficiency that prior art exists, and a kind of bell-jar bright annealing oven protection gas recycle and reuse device is provided, and realization will be protected gas to recycle purification and be re-used as protection gas and enter the annealing furnace recycle.
The purpose of this utility model is achieved through the following technical solutions:
Bell-jar bright annealing oven protection gas recycle and reuse device; characteristics are: end is furnished with cooler condenser in bell-jar bright annealing oven group's back flow protection gas air outlet; the air outlet end of cooler condenser is provided with steam separator; the air outlet end of steam separator connects the prime surge tank; the air outlet end of prime surge tank links to each other with the import of Root's blower; the outlet of Root's blower connects oil header; the air outlet end of oil header connects deoxygenator; the air outlet end of deoxygenator is furnished with water cooler and condenser successively; the air outlet end of condenser connects absorption regeneration formula drying installation through steam separator; the pure gas exit end of absorption regeneration formula drying installation is communicated with back level surge tank; back level surge tank accesses to bell-jar bright annealing oven group, and the resurgent gases venting port of absorption regeneration formula drying installation is connected to the inlet mouth end of cooler condenser.
Further, above-mentioned bell-jar bright annealing oven protection gas recycle and reuse device, wherein, the pipeline between steam separator and the prime surge tank is provided with pressure unit, and the pipeline between absorption regeneration formula drying installation and the back level surge tank is provided with pressure unit; Pipeline between steam separator and the prime surge tank is provided with the safety vent pipeline, on the safety vent pipeline blow-off valve is installed; Pipeline between absorption regeneration formula drying installation and the back level surge tank is provided with the displacement exhaust line, on the displacement exhaust line vent valve is installed; Pipeline between steam separator and the prime surge tank is provided with hydrogen tonifying Qi pipeline, on the hydrogen tonifying Qi pipeline control valve is installed; Between the inlet mouth of the pure gas outlet of absorption regeneration formula drying installation and prime surge tank, be provided with the hydrogen return line, on the hydrogen return line pressure regulator valve be installed; Between the inlet mouth of the pure gas outlet of absorption regeneration formula drying installation and prime surge tank, be provided with hydrogen voltage stabilizing pipeline, on the hydrogen voltage stabilizing pipeline return valve be installed; Pressure unit on the prime surge tank admission passage by the PLC controller respectively with the safety vent pipeline on blow-off valve, control valve on the hydrogen tonifying Qi pipeline and the pressure regulator valve control linkage on the hydrogen return line; Pressure unit on the back level surge tank admission passage by the PLC controller respectively with the displacement exhaust line on vent valve and the return valve control linkage on the hydrogen voltage stabilizing pipeline.
Further, above-mentioned bell-jar bright annealing oven protection gas recycle and reuse device, wherein, the pure gas exit end of described absorption regeneration formula drying installation is equipped with hydrogen analyser, little oxygen analyzer and dew point hygrometer.
Further, above-mentioned bell-jar bright annealing oven protection gas recycle and reuse device, wherein, described Root's blower is connected with Frequency Converter Control, and described cooler condenser is shell and tube cooler condenser or water spray cooler.
The utility model bell-jar bright annealing oven protection gas recycle and reuse technology; characteristics are: bell-jar bright annealing oven group's back flow protection gas carries out the gentle cooling condensation of oil through cooler condenser; the cooled protection gas of condensation enters steam separator and removes most water and oil; enter the prime surge tank through the protection gas after the cooling de-watering oil removing; protection gas carries out supercharging through prime surge tank buffering back by Root's blower; protection gas after the supercharging is through oil header oil suction and deoxygenator deoxygenation; the deoxygenator water generation reaction is emitted heat; and then protection gas is dewatered by water cooler cooling and condenser again; protection gas behind the cooling de-watering enters steam separator and separates water; at last; protection gas enters absorption regeneration formula drying installation again to carry out the degree of depth and dewaters and remove impurity, and pure gas is supply bell-jar bright annealing oven group after the level surge tank decompression voltage stabilizing of back.
The substantive distinguishing features of technical solutions of the utility model and progressive being mainly reflected in:
The utility model modern design realizes bell-jar bright annealing oven group's back flow protection gas is recycled purification, and is re-used as protection gas and enters the annealing furnace recycle.Thereby, avoided protection gas directly to burn or, saved the energy greatly the atmosphere emptying, adapt to the energy-saving and emission-reduction developing direction, economic benefit and social effect are remarkable, be rated as have novelty, the good technology of creativeness, practicality.
Description of drawings
Below in conjunction with accompanying drawing technical solutions of the utility model are described further:
Fig. 1: structural representation of the present utility model.
The implication of each Reference numeral sees the following form among the figure:
Embodiment
As shown in Figure 1; bell-jar bright annealing oven protection gas recycle and reuse device; end is furnished with cooler condenser E2 in the back flow protection gas air outlet of bell-jar bright annealing oven group E1; between bell-jar bright annealing oven group E1 and the cooler condenser E2 intake valve V1 is installed; the air outlet end of cooler condenser E2 is provided with steam separator E3; the air outlet end of steam separator E3 connects prime surge tank E4; the air outlet end of prime surge tank E4 links to each other with the import of Root's blower E5; Root's blower E5 is connected with Frequency Converter Control; rotating speed by Frequency Converter Control Root's blower E5; between prime surge tank E4 and the Root's blower E5 valve V2 is installed; the outlet of Root's blower E5 connects oil header E6; between Root's blower E5 and the oil header E6 valve V3 is installed; the air outlet end of oil header E6 connects deoxygenator E7; the air outlet end of deoxygenator E7 is furnished with water cooler E8 and condenser E9 successively; the air outlet end of condenser E9 connects absorption regeneration formula drying installation E11 through steam separator E10; the pure gas exit end of absorption regeneration formula drying installation E11 is communicated with back level surge tank E12; back level surge tank E12 accesses to bell-jar bright annealing oven group E1, and the resurgent gases venting port of absorption regeneration formula drying installation E11 is connected to the inlet mouth end of cooler condenser E1.
Pipeline between steam separator E3 and the prime surge tank E4 is provided with pressure unit P1, and the pipeline between absorption regeneration formula drying installation E11 and the back level surge tank E12 is provided with pressure unit P2; Pipeline between steam separator E3 and the prime surge tank E4 is provided with safety vent pipeline B, on the safety vent pipeline B blow-off valve V14 is installed; Pipeline between absorption regeneration formula drying installation E11 and the back level surge tank E12 is provided with displacement exhaust line D, on the displacement exhaust line D vent valve V15 is installed; Pipeline between steam separator E3 and the prime surge tank E4 is provided with hydrogen tonifying Qi pipeline C, on the hydrogen tonifying Qi pipeline C control valve V9 and control valve V10 is installed; Between the inlet mouth of the pure gas outlet of absorption regeneration formula drying installation E11 and prime surge tank E4, be provided with hydrogen aspirating pipeline G, pressure regulator valve V5 and pressure regulator valve V6 are installed on the hydrogen aspirating pipeline G; Between the inlet mouth of the pure gas outlet of absorption regeneration formula drying installation volume E11 and prime surge tank E4, be provided with hydrogen voltage stabilizing pipeline H, on the hydrogen voltage stabilizing pipeline H return valve V7 and return valve V8 be installed; Pressure unit P1 by the PLC controller respectively with the safety vent pipeline on blow-off valve V14, control valve V9, control valve V10 on the hydrogen tonifying Qi pipeline and the pressure regulator valve V5 on the hydrogen aspirating pipeline, pressure regulator valve V6 control linkage; Pressure unit P2 by the PLC controller respectively with vent valve V15 and return valve V7 hydrogen voltage stabilizing pipeline on, return valve V8 control linkage of displacement on the exhaust line.In addition, the pure gas exit end of absorption regeneration formula drying installation E11 is equipped with hydrogen analyser A1, little oxygen analyzer A2 and dew point hygrometer A3, and cooler condenser E2 is shell and tube cooler condenser or water spray cooler.
When the utilization said apparatus carries out recycle and reuse to bell-jar bright annealing oven protection gas; (back flow protection atmospheric pressure 2～5Kpa) carries out the gentle cooling condensation of oil through cooler condenser E2 to the back flow protection gas of bell-jar bright annealing oven group E1; the cooled protection gas of condensation enters steam separator E3 and removes most water and oil; enter prime surge tank E4 through the protection gas after the cooling de-watering oil removing; protection gas carries out supercharging through prime surge tank E4 buffering back by Root's blower E5; Root's blower E5 will protect gas to be pressurized to 10～50Kpa; the temperature of protection gas rises 20～80 ℃; protection gas after the supercharging is through oil header E6 oil suction and deoxygenator E7 deoxygenation; deoxygenator E7 water generation reaction is emitted heat; and then protection gas is dewatered by water cooler E8 cooling and condenser E9 again; protection gas behind the cooling de-watering enters steam separator E10 and separates water; at last; protection gas enters absorption regeneration formula drying installation E11 again to carry out the degree of depth and dewaters and remove impurity; pure gas through after supply with bell-jar bright annealing oven group E1 after the level surge tank E12 decompression voltage stabilizing, the resurgent gases venting port of absorption regeneration formula drying installation E11 is connected to the inlet mouth end of cooler condenser E2.
The A pipeline is the back flow protection gas outlet side of bell-jar bright annealing oven group E1, impurity such as oil-containing water in the back flow protection gas.The B pipeline is protection gas safety vent end, and Controlling System safety, assurance system are normally moved, and the automatic emptying of back flow protection atmospheric pressure superelevation of bell-jar bright annealing oven group E1 appears in system.The C pipeline is a hydrogen tonifying Qi end, and the low or system's hydrogen richness of the back flow protection atmospheric pressure of bell-jar bright annealing oven group E1 automatic hydrogen make-up when low appears in system, guarantees the working stability of system.The D pipeline is the displacement exhaust side, and automatic vent was replaced defective gas when hydrogen richness was low, waits to reach processing requirement and stop exhaust automatically.The E pipeline is the air feed end of bell-jar bright annealing oven group E1, supplies with pure gas and enters bell-jar bright annealing oven group E1.The F pipeline is the resurgent gases exhaust side of absorption regeneration formula drying installation E11, and the regeneration emission gases is back to the system front portion, reclaims automatically.The G pipeline is to vacuumize the end that refluxes before the roots blower, when occurring air inlet before the roots blower E5 and freely do not cause prime surge tank E4 pressure ultralow, opens pressure regulator valve V5 and pressure regulator valve V6 automatically to prime surge tank E4 tonifying Qi, prevents low pressure danger.The H pipeline is an airing system constant current pipeline, because bell-jar bright annealing oven group E1 is made up of a plurality of tables, each table flow that is in operation changes, need flow, pressure adjustment when causing A pipeline inlet flow rate to change suddenly, adjust return valve V7 and return valve V8, guarantee that system's supply gas pressure is stable.
Surface pressure before the pressure unit P1 control roots blower E5 is divided into: superelevation warning emptying pressure, and control blow-off valve V14 opens emptying; The tonifying Qi high pressure, control control valve V9/ control valve V10 tonifying Qi stops; The tonifying Qi low pressure, control control valve V9/ control valve V10 opens tonifying Qi; Ultralow alarm pressure, regulating and controlling valve V5/ pressure regulator valve V6 opens back flow protection gas; The limit is hanged down alarm pressure, and five kinds of pressure of Controlling System auto stop are set.
Pressure behind the purification devices behind the pressure unit P2 control roots blower, be divided into: set operating pressure, PID regulates roots blower E5 rotating speed automatically and regulates flow; The constant voltage return pressure, automatic control and adjustment valve V7 guarantees that pure atmospheric pressure is stable; Pure gas hyperpressure, control vent valve V15 discharges automatically.
Hydrogen analyser A1 indicating system hydrogen content, if be lower than the product demand hydrogen richness, control vent valve V15 discharging replenishes the defective gas in the pure gas exchange system, closes vent valve V15 automatically after touching the mark by the time.
Little oxygen analyzer A2 detects finished product gas oxygen level, reports to the police and automatic closing system when the oxygen level superelevation, and hazardous condition appears in anti-locking system.
Dew point hygrometer A3 detects the water-content in the finished product gas, the high warning of water-content occurs, reminds operator that operation is dealt with problems.
The total system fully automatic operation, corresponding table number is adjustable, several of the careless operations of bell-jar annealing furnace all adapt to automatically, manpower and materials have been saved greatly, the hydrogen recovery of total system reaches more than 80%, each per hour consumes 15 cubes in gas according to ten bell furnaces of a medium-sized processing enterprise, the saving gas consumption in 1 year is 10*365*24*15*0.8=1051200 cube so, can save more than 400 ten thousand for 4 yuan/cube according to the hydrogen price, can save more than 260 ten thousand, remarkable in economical benefits for 2.5 yuan/cube according to the hydrogen rich gas price.Realization recycles purification with bell-jar bright annealing oven group's back flow protection gas, and is re-used as protection gas and enters the annealing furnace recycle, is worth wide popularization and application in the field of business.
What need understand is: the above only is a preferred implementation of the present utility model; for those skilled in the art; under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. the bell-jar bright annealing oven is protected gas recycle and reuse device; it is characterized in that: end is furnished with cooler condenser in bell-jar bright annealing oven group's back flow protection gas air outlet; the air outlet end of cooler condenser is provided with steam separator; the air outlet end of steam separator connects the prime surge tank; the air outlet end of prime surge tank links to each other with the import of Root's blower; the outlet of Root's blower connects oil header; the air outlet end of oil header connects deoxygenator; the air outlet end of deoxygenator is furnished with water cooler and condenser successively; the air outlet end of condenser connects absorption regeneration formula drying installation through steam separator; the pure gas exit end of absorption regeneration formula drying installation is communicated with back level surge tank; back level surge tank accesses to bell-jar bright annealing oven group, and the resurgent gases venting port of absorption regeneration formula drying installation is connected to the inlet mouth end of cooler condenser.
2. bell-jar bright annealing oven protection gas recycle and reuse device according to claim 1, it is characterized in that: the pipeline between steam separator and the prime surge tank is provided with pressure unit, and the pipeline between absorption regeneration formula drying installation and the back level surge tank is provided with pressure unit; Pipeline between steam separator and the prime surge tank is provided with the safety vent pipeline, on the safety vent pipeline blow-off valve is installed; Pipeline between absorption regeneration formula drying installation and the back level surge tank is provided with the displacement exhaust line, on the displacement exhaust line vent valve is installed; Pipeline between steam separator and the prime surge tank is provided with hydrogen tonifying Qi pipeline, on the hydrogen tonifying Qi pipeline control valve is installed; Between the inlet mouth of the pure gas outlet of absorption regeneration formula drying installation and prime surge tank, be provided with the hydrogen return line, on the hydrogen return line pressure regulator valve be installed; Between the inlet mouth of the pure gas outlet of absorption regeneration formula drying installation and prime surge tank, be provided with hydrogen voltage stabilizing pipeline, on the hydrogen voltage stabilizing pipeline return valve be installed; Pressure unit on the prime surge tank admission passage by the PLC controller respectively with the safety vent pipeline on blow-off valve, control valve on the hydrogen tonifying Qi pipeline and the pressure regulator valve control linkage on the hydrogen return line; Pressure unit on the back level surge tank admission passage by the PLC controller respectively with the displacement exhaust line on vent valve and the return valve control linkage on the hydrogen voltage stabilizing pipeline.
3. bell-jar bright annealing oven protection gas recycle and reuse device according to claim 1, it is characterized in that: the pure gas exit end of described absorption regeneration formula drying installation is equipped with hydrogen analyser, little oxygen analyzer and dew point hygrometer.
4. bell-jar bright annealing oven protection gas recycle and reuse device according to claim 1, it is characterized in that: described Root's blower is connected with Frequency Converter Control.
5. bell-jar bright annealing oven protection gas recycle and reuse device according to claim 1, it is characterized in that: described cooler condenser is shell and tube cooler condenser or water spray cooler.。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202717887U CN201770739U (en) | 2010-07-27 | 2010-07-27 | Protective gas reclaiming and recycling device for bell type bright annealing oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202717887U CN201770739U (en) | 2010-07-27 | 2010-07-27 | Protective gas reclaiming and recycling device for bell type bright annealing oven |
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| Publication Number | Publication Date |
|---|---|
| CN201770739U true CN201770739U (en) | 2011-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202717887U Expired - Lifetime CN201770739U (en) | 2010-07-27 | 2010-07-27 | Protective gas reclaiming and recycling device for bell type bright annealing oven |
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| CN (1) | CN201770739U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956061A (en) * | 2010-07-27 | 2011-01-26 | 苏州品源气体设备有限公司 | Process and device for recovering and recycling protective gas of bell-type bright annealing furnace |
| CN107419073A (en) * | 2017-08-29 | 2017-12-01 | 鞍钢集团工程技术有限公司 | A kind of cold rolled annealed Full Hydrogen Bell Type Annealing Furnace hydrogen recovery process and system |
| CN110595221A (en) * | 2019-10-08 | 2019-12-20 | 江苏维麦气体科技有限公司 | Tail gas recycling device and process for galvanizing continuous annealing furnace |
-
2010
- 2010-07-27 CN CN2010202717887U patent/CN201770739U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956061A (en) * | 2010-07-27 | 2011-01-26 | 苏州品源气体设备有限公司 | Process and device for recovering and recycling protective gas of bell-type bright annealing furnace |
| CN107419073A (en) * | 2017-08-29 | 2017-12-01 | 鞍钢集团工程技术有限公司 | A kind of cold rolled annealed Full Hydrogen Bell Type Annealing Furnace hydrogen recovery process and system |
| CN110595221A (en) * | 2019-10-08 | 2019-12-20 | 江苏维麦气体科技有限公司 | Tail gas recycling device and process for galvanizing continuous annealing furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110323 Effective date of abandoning: 20120725 |