CN202770112U - Device for low-load production of air separation plant - Google Patents

Device for low-load production of air separation plant Download PDF

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Publication number
CN202770112U
CN202770112U CN2012202945295U CN201220294529U CN202770112U CN 202770112 U CN202770112 U CN 202770112U CN 2012202945295 U CN2012202945295 U CN 2012202945295U CN 201220294529 U CN201220294529 U CN 201220294529U CN 202770112 U CN202770112 U CN 202770112U
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CN
China
Prior art keywords
air compressor
small air
outlet valve
air separation
separation plant
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 - Lifetime
Application number
CN2012202945295U
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Chinese (zh)
Inventor
姚力
李立兵
张宝峰
谷守全
马建杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TANGSHAN TANGSTEEL GAS CO Ltd
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TANGSHAN TANGSTEEL GAS CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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Priority to CN2012202945295U priority Critical patent/CN202770112U/en
Application granted granted Critical
Publication of CN202770112U publication Critical patent/CN202770112U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25JLIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04763Start-up or control of the process; Details of the apparatus used
    • F25J3/04769Operation, control and regulation of the process; Instrumentation within the process
    • F25J3/04812Different modes, i.e. "runs" of operation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25JLIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04763Start-up or control of the process; Details of the apparatus used
    • F25J3/04866Construction and layout of air fractionation equipments, e.g. valves, machines
    • F25J3/04951Arrangements of multiple air fractionation units or multiple equipments fulfilling the same process step, e.g. multiple trains in a network
    • F25J3/04957Arrangements of multiple air fractionation units or multiple equipments fulfilling the same process step, e.g. multiple trains in a network and inter-connecting equipments upstream of the fractionation unit (s), i.e. at the "front-end"
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25JLIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2230/00Processes or apparatus involving steps for increasing the pressure of gaseous process streams
    • F25J2230/24Multiple compressors or compressor stages in parallel
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25JLIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2230/00Processes or apparatus involving steps for increasing the pressure of gaseous process streams
    • F25J2230/40Processes or apparatus involving steps for increasing the pressure of gaseous process streams the fluid being air
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25JLIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2290/00Other details not covered by groups F25J2200/00 - F25J2280/00
    • F25J2290/60Details about pipelines, i.e. network, for feed or product distribution

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Separation By Low-Temperature Treatments (AREA)

Abstract

A device for low-load operation of an air separation plant belongs to the technical field of cryogenic oxygen producing equipment and is used for low-load production of the air separation plant. The technical scheme adopted is that the device comprises more than two small air compressors and supporting valves, each small air compressor is provided with a check valve and an outlet valve in sequential connection; all the outlet valves are connected through pipelines with outlet valves respectively mounted therein; the outlet valve of one small air compressor is connected with another outlet valve and the air separation plant through the pipeline; and a pipe connection bleeding valve is arranged on the connecting pipeline of each small air compressor and the corresponding check valve. According to the utility model, the plurality of small air compressors are used for production, rather than the large air compressor body; the small air compressors can be reversed for air separation low-load production without air separation parking and restart; and the equipment load as design is minimized to 75 percent, and the electrical quantity is saved by 50 percent. Therefore, the device provided by the utility model has the advantages of simple structure, convenience in operation, safety, practicability, and remarkably lowered manufacturing cost.

Description

A kind of device for the production of air separation plant underload
Technical field
The utility model relates to a kind of device that can make the air separation plant load operation, especially uses the servicing unit on cryogenic air separation oxygen processed, belongs to deep cooling oxygen generating plant technical field.
Background technology
Adopting at present the cryogenic refrigeration method to produce oxygen is the technological means that generally adopts, and along with the variation in production market, the air separation unit underload production of sometimes having to is tackled huge cost pressure.In real work, find, in again must not unproductive situation when reducing in a large number with gas, because air compressor machine power consumption is proportional with compression tolerance, take pipeline connect the small air compressor outlet conduit replace the air compressor machine of equipment own for the production of, can when sky divides underload to produce, reduce the unit cost of production.Therefore, might design a kind of new device that is used for the production of air separation plant underload, to reduce cost, realize producing under the low load condition.
The utility model content
Technical problem to be solved in the utility model provides a kind ofly can use a plurality of small air compressors to replace supporting air compressor machine to carry out the device that the air separation plant underload is produced that is used for that underload produces.
The technical scheme that solves the problems of the technologies described above is:
A kind of device for the production of air separation plant underload, it is comprised of a plurality of small air compressors more than two and supporting outlet valve, check-valves, diffusion valve, every small air compressor and a check-valves, an outlet valve are linked in sequence, these several outlet valves are connected by pipeline again, in connecting pipe, there is respectively outlet valve to cut off, wherein the outlet valve that connects of small air compressor is connected with air separation plant with another outlet valve by pipeline, has respectively pipeline to be connected diffusion valve on the connecting line of every small air compressor and check-valves.
Above-mentioned device for the production of air separation plant underload, setting pressure flowmeter behind the outlet valve of described each small air compressor, flow is counted elbow meter.
The beneficial effects of the utility model are:
The utility model two or many small air compressors can be replaced equipment itself greatly air compressor machines produce, need not stop in empty minute to restart and just can switch small air compressor and carry out sky and divide underload production, can reduce machine utilization minimum to 75% according to design, save electric weight and reach 50%.The utility model not only makes empty minute underload production function, and can divide continuous and stable production under the prerequisite of not stopping at sky, and it is simple in structure, and is easy to operate, safe and practical, and production cost reduces obviously.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Mark is as follows among the figure: 1# air compressor machine 1,2# air compressor machine 2,3# air compressor machine 3, outlet valve 4, check-valves 5, diffusion valve 6, flowmeter 7, air separation plant 8.
The specific embodiment
The utility model is by being comprised of a plurality of small air compressors more than two and supporting outlet valve 4, check-valves 5, diffusion valve 6, flowmeter 7.
Show among the figure, an embodiment of the present utility model adopts three small air compressors, is respectively 1# air compressor machine 1,2# air compressor machine 2,3# air compressor machine 3.Each small air compressor and a check-valves 5, an outlet valve 4 are linked in sequence, these three outlet valves 4 are connected by pipeline again, in connecting pipe, there are respectively two outlet valves 4 to cut off, three small air compressors are divided into independently loop, 2# air compressor machine 2,3# air compressor machine 3 completely cut off with 1 segmentation of 1# air compressor machine, can realize independent supply.
Show among the figure, the outlet valve 4 that connects at 1# air compressor machine 1 is connected with air separation plant 8 with another outlet valve 4 by pipeline, and air separation plant 8 can be connected with three small air compressors respectively by outlet valve 4, is used alone or in combination.
Show on the connecting line of every small air compressor and check-valves 5, have respectively pipeline to be connected diffusion valve 6, the outlet valve 4 rear setting pressure flowmeters 7 of every small air compressor among the figure.
Pipeline of the present utility model is withstand voltage stainless steel pipes, pressure-bearing 1.0Mpa, and outlet valve 4 is Hand-operated butterfly valve, flowmeter 7 is selected elbow meter.
The utility model not only has to the underload production function, and can carry not stopping and reduce load production, and it is simple in structure, and easy to operate, production is stablized.Except being used for empty minute underload production, also can being used for other large enterprise's source of the gas and replacing.
The course of work of the present utility model is as follows:
The utility model is used between the oxygen generating station air compressor machine, reducing gradually original equipment sends into air capacity and can be undertaken by air compressor machine diffusion valve 6, also can be undertaken by 1 outlet valve 4 of 1# air compressor machine in this device, open gradually the outlet valve 4 of 2# air compressor machine 2,3# air compressor machine 3 simultaneously.Pay close attention to changes in flow rate in the opening process, pressure changes, and accomplishes that pressure point is stable, and flow reaches re-set target.

Claims (2)

1. one kind is used for the device that the air separation plant underload is produced, it is characterized in that: it is by a plurality of small air compressors more than two and supporting outlet valve (4), check-valves (5), diffusion valve (6) forms, every small air compressor and a check-valves (5), an outlet valve (4) is linked in sequence, these several outlet valves (4) are connected by pipeline again, in connecting pipe, there is respectively outlet valve (4) to cut off, wherein the outlet valve (4) that connects of small air compressor is connected with air separation plant (8) with another outlet valve (4) by pipeline, has respectively pipeline to be connected diffusion valve (6) on the connecting line of every small air compressor and check-valves (5).
2. the device of producing for the air separation plant underload according to claim 1, it is characterized in that: setting pressure flowmeter (7) behind the outlet valve of described each small air compressor (4), flowmeter (7) is elbow meter.
CN2012202945295U 2012-06-21 2012-06-21 Device for low-load production of air separation plant Expired - Lifetime CN202770112U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012202945295U CN202770112U (en) 2012-06-21 2012-06-21 Device for low-load production of air separation plant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012202945295U CN202770112U (en) 2012-06-21 2012-06-21 Device for low-load production of air separation plant

Publications (1)

Publication Number Publication Date
CN202770112U true CN202770112U (en) 2013-03-06

Family

ID=47776678

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012202945295U Expired - Lifetime CN202770112U (en) 2012-06-21 2012-06-21 Device for low-load production of air separation plant

Country Status (1)

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CN (1) CN202770112U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103245167A (en) * 2013-05-24 2013-08-14 济钢集团有限公司 Running device and running method for loads of multiple machine sets of oxygenator to jointly vary
CN105318193A (en) * 2014-07-31 2016-02-10 宝山钢铁股份有限公司 Low-pressure nitrogen gas header pipe system and control method
CN111561440A (en) * 2020-03-27 2020-08-21 彩虹(合肥)液晶玻璃有限公司 High efficiency air compressor machine unit control system
CN113669627A (en) * 2021-08-16 2021-11-19 南京钢铁股份有限公司 Pipe network system and method for increasing oxygen yield by utilizing surplus compressed air

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103245167A (en) * 2013-05-24 2013-08-14 济钢集团有限公司 Running device and running method for loads of multiple machine sets of oxygenator to jointly vary
CN103245167B (en) * 2013-05-24 2015-12-09 济钢集团有限公司 A kind of oxygenerator multicomputer associating variable load operation device and method
CN105318193A (en) * 2014-07-31 2016-02-10 宝山钢铁股份有限公司 Low-pressure nitrogen gas header pipe system and control method
CN105318193B (en) * 2014-07-31 2018-01-30 宝山钢铁股份有限公司 A kind of low-pressure nitrogen manifold system and control method
CN111561440A (en) * 2020-03-27 2020-08-21 彩虹(合肥)液晶玻璃有限公司 High efficiency air compressor machine unit control system
CN113669627A (en) * 2021-08-16 2021-11-19 南京钢铁股份有限公司 Pipe network system and method for increasing oxygen yield by utilizing surplus compressed air

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CX01 Expiry of patent term

Granted publication date: 20130306

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