CN207865037U - A kind of energy-saving compressed gas Multilevel partial-pressure regulating system - Google Patents
A kind of energy-saving compressed gas Multilevel partial-pressure regulating system Download PDFInfo
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- CN207865037U CN207865037U CN201820053837.6U CN201820053837U CN207865037U CN 207865037 U CN207865037 U CN 207865037U CN 201820053837 U CN201820053837 U CN 201820053837U CN 207865037 U CN207865037 U CN 207865037U
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Abstract
The utility model discloses a kind of energy-saving compressed gas Multilevel partial-pressure regulating systems, including compressor and pipeline, the compressor includes high pressure compressor, intermediate pressure compressor and low pressure compressor, and the outlet of high pressure compressor connects high voltage customer pipe network by pressure duct；The outlet of intermediate pressure compressor passes through middle pressure piping connection Middle Voltage pipe network；The outlet of low pressure compressor connects low-voltage customer pipe network by low pressure line.It is provided with spherical tank on pressure duct, decompression regulating mechanism is provided between pipeline.Three compressors are arranged in the utility model, are directly supplied by high pressure, middle pressure, low pressure, avoid single compressed machine and all gas is compressed to high pressure and increased power consumption, reduce the manufacturing cost of compressed gas.In addition, when the compressor fault of lower pressure is shut down or when for unsaturated vapor, is supplied by the gas in the higher pipe network of pressure to protect with the relatively low user of atmospheric pressure, be ensure that the safe and stable operation of system.
Description
Technical field
The utility model is related to compressed gas partial pressure regulation technology field more particularly to a kind of energy-saving compressed gas are multistage
Divide regulating system.
Background technology
Compressed gas refer mainly to compression air, oxygen, nitrogen, as important energy source medium be widely used in steel,
In the industries such as smelting, coal chemical industry, such as：Compressed air is used as operated pneumatic valve instrument air, power gas source, cooling air source, purge gass
Source, oxygen are used as the combustion adjuvant of smelting process, and nitrogen is used as protection gas, blanket gas, power gas etc., is almost related to key industry
Links in production, user is different, requires bleed pressure also different.
Current compressed gas partial pressure regulative mode is that direct decompression is adjusted, and that is to say in compressor compresses to user group makes
With the pressure of demand maximum pressure, the use pressure being then depressurized to through different vacuum regulating device required by different user.With
For iron and steel enterprise's nitrogen, nitrogen is widely applied to the production links such as related steel-making, ironmaking, steel rolling, coking, steelmaking converter
The use of pressure is 1.6MPa；Coal injection device for blast furnace is 1.1MPa using pressure, and blast-furnace body is 0.45~0.8MPa using pressure；
The driving pressure of heater for rolling steel reversal valve is 0.8MPa；The use pressure of the dry breath Jiao Ta of coking is 0.7MPa.Divide adjusting side
Formula is：Normal pressure nitrogen is compressed to 1.6MPa through nitrogen compressor（User demand maximum pressure）, pipeline is connected with spherical tank, plays ball
The storage of tank acts on, the problem of slowing down with pressure transient caused by gas unevenness.Spherical tank gas supply is divided into multichannel, all the way directly
Steelmaking converter is supplied to use；Another way is depressurized to 0.8MPa and is used for steel rolling；0.7MPa is depressurized to all the way again to use for coking；Also
Have and be depressurized to 1.1MPa all the way for smelting iron voltage regulating station, smelts iron the direct-furnish all the way of voltage regulating station to pulverized coal injection, another way is depressurized to
0.8MPa for blast-furnace body, and the pressure 0.45MPa of boiler roof sealing nitrogen 0.45MPa is depressurized to by the nitrogen of 0.8MPa again and
Come.
Since gas compression to high pressure needs to increase more power consumptions, compressed gas directly depressurizes the energy loss mistake brought
Greatly, for the iron and steel enterprise of 10,000,000 tons of steel of an annual output, every year because compressed gas depressurizes the wave of the brought electric energy of restriction loss
Take more than 100,000,000 degree.By visiting more iron and steel enterprises, there are similar problems, not changing air supply system can not fundamentally drop
Low operating cost.
Invention content
The utility model for compressed gas directly depressurize adjust energy loss it is big, the excessively high problem of operating cost, design
A kind of energy-saving multistage partial pressure regulating system, is compressed compressed gas using pressure by user, reduces cost, and equipment operation is improved
Efficiency, specific technical solution are：
A kind of energy-saving compressed gas Multilevel partial-pressure regulating system, including compressor and pipeline, it is characterised in that：The pressure
Contracting machine includes high pressure compressor, intermediate pressure compressor and low pressure compressor, and the outlet of high pressure compressor connects height by pressure duct
Press user's pipe network；The outlet of intermediate pressure compressor passes through middle pressure piping connection Middle Voltage pipe network；The outlet of low pressure compressor passes through
Low pressure line connects low-voltage customer pipe network.
High pressure compressor fault interrupting supplies in order to prevent, and the pressure duct is connected with spherical tank.
Intermediate pressure compressor failure or for unsaturated vapor in order to prevent, pipe is provided between the pressure duct and middle pressure pipe road
Road is provided with decompression regulating mechanism on pipeline.
Low pressure compressor failure or for unsaturated vapor in order to prevent, pipe is provided between medium pressure pipeline and low pressure line
Road is provided with decompression regulating mechanism on pipeline.
The decompression regulating mechanism is made of branch pipe and bypass pipe parallel connection, and solenoid valve is provided on branch pipe, is set on bypass pipe
It is equipped with regulating valve.
It is provided with filter before the solenoid valve.
The utility model has the following technical effect that compared with prior art:The utility model uses pressure for user group
Three compressors are arranged into horizontal high voltage, middle pressure, low pressure classification in power, are directly supplied by high pressure, middle pressure, low pressure, avoid single pressure
All gas is compressed to high pressure and increased power consumption by contracting machine, reduces the manufacturing cost of compressed gas.In addition, working as lower pressure
Compressor fault shut down or when for unsaturated vapor, protected by the gas in the higher pipe network of pressure with the relatively low user of atmospheric pressure
For, and when high pressure compressor disorderly closedown, high voltage customer can be protected by inventory of gas in spherical tank and be supplied, and ensure that the safety of system
Stable operation.
Description of the drawings
Fig. 1 is the utility model structure diagram.
In figure：1, high pressure compressor；2, intermediate pressure compressor；3, low pressure compressor；4, pressure duct；5, middle pressure pipe road；6、
Low pressure line；7, spherical tank；8, pipeline；9, regulating mechanism is depressurized；10, branch pipe；11, bypass pipe；12, solenoid valve；13, regulating valve；
14, filter；15, high voltage customer pipe network；16, Middle Voltage pipe network；17, low-voltage customer pipe network；18, check-valves.
Specific implementation mode
The utility model is described in further detail with reference to the accompanying drawings and examples.
Referring to Fig. 1, a kind of energy-saving compressed gas Multilevel partial-pressure regulating system, including compressor and pipeline, feature exist
In：The compressor includes high pressure compressor 1, intermediate pressure compressor 2 and low pressure compressor 3, and the outlet of high pressure compressor 1 passes through height
Pressure pipe road 4 connects high voltage customer pipe network 15；The outlet of intermediate pressure compressor 2 connects Middle Voltage pipe network 16 by middle pressure pipe road 5；It is low
The outlet of compressor 3 is pressed to connect low-voltage customer pipe network 17 by low pressure line 6.1 fault interrupting of high pressure compressor supplies in order to prevent
Gas, the pressure duct 4 are connected with spherical tank 7；2 failure of intermediate pressure compressor or for unsaturated vapor in order to prevent, the pressure duct 4 with
It is provided with pipeline 8 between middle pressure pipe road 5, decompression regulating mechanism 9 is provided on pipeline 8；In order to prevent 3 failure of low pressure compressor or
For unsaturated vapor, it is provided with pipeline 8 between medium pressure pipeline 5 and low pressure line 6, decompression regulating mechanism 9 is provided on pipeline 8；
The decompression regulating mechanism 9 is made of branch pipe 10 and 11 parallel connection of bypass pipe, is provided with solenoid valve 12 on branch pipe 11, on bypass pipe 11
It is provided with regulating valve 13；Filter 14 is provided with before the solenoid valve 13.
Embodiment：As shown in Figure 1, the utility model is classified using pressure into horizontal high voltage, middle pressure, low pressure for user group,
Three compressors are set, are directly supplied by high pressure 1.6MPa, middle pressure 0.8MPa, low pressure 0.6MPa respectively, in the outlet of compressor
Check-valves 18 is installed.The outlet of high pressure compressor 1 is connected to high voltage customer pipe network 15 by pressure duct 4, high pressure pipe network
The pressure that user can directly use or be used according to oneself is finely tuned by depressurizing regulating device；The outlet of intermediate pressure compressor 2 is logical
It crosses middle pressure pipe road 5 and is connected to Middle Voltage pipe network 16, the pressure that the user of fecder system network can directly use or be used according to oneself
Power is by depressurizing regulating device fine tuning；The outlet of low pressure compressor 3 is connected to low-voltage customer pipe network 17 by low pressure line 6, low
The pressure that the user of pressure pipe net can directly use or be used according to oneself is finely tuned by depressurizing regulating device.By high pressure, in
The setting of pressure, three compressor of low pressure is greatly reduced the unwanted high pressure gas of user and high pressure is made by user demand gas
Gas and increased power consumption, reduce the manufacturing cost of compressed gas.In order to preferably ensure system safe and stable operation, increase
Additional facilities：1, spherical tank 7 is in addition connected on pressure duct 4, the high pressure gas usually from high pressure compressor 1, in ball
It is stored in tank 7, in addition directly feeds high voltage customer.The purpose that spherical tank 7 is arranged is the switching when 1 failure of high pressure compressor stops production
It is supplied to spherical tank 7, ensures that pipe network is not died；2,2 failure of intermediate pressure compressor or for unsaturated vapor in order to prevent, pressure duct 4 with
It is connected with pipeline 8 between middle pressure pipe road 5, decompression regulating mechanism 9 is installed, decompression regulating mechanism 9 is by branch pipe 10 and side on pipeline 8
Siphunculus 11 is in parallel to constitute two paths, is equipped with solenoid valve 12 on branch pipe 11, filter 14, bypass pipe are equipped with before solenoid valve 13
Regulating valve 13 is installed on 11, when normal work, closes the regulating valve 13 on bypass pipe 11,12 work of solenoid valve on branch pipe 11
Make, so that the high pressure gas on pressure duct 4 is passed through branch pipe 11 and supplied to Middle Voltage after the decompression of solenoid valve 12；Solenoid valve 12 works
When abnormal, the regulating valve 13 on bypass pipe 11 is opened, it is artificial to depressurize, it is supplied to Middle Voltage；The effect of filter 14 is to filter out
Dust in gas extends the service life of solenoid valve 12.Equally, 3 failure of low pressure compressor or for unsaturated vapor in order to prevent,
Pipeline 8 is also installed between middle pressure pipe road 5 and low pressure line 6, decompression regulating mechanism 9 is also installed on pipeline 8, by depressurizing,
Gas from middle pressure pipe road 5 is supplied to low-voltage customer.
The course of work of the utility model is as follows：By taking certain iron and steel enterprise's nitrogen Multilevel partial-pressure regulating system as an example, normal pressure nitrogen
Gas is compressed to 1.6MPa supplies steel-making user through high pressure compressor 1 and ironmaking user, which part are stored in spherical tank 7.Steel-making
User directly feeds steelmaking converter use, and after ironmaking user obtains high pressure gas, 1.1MPa is depressurized to height through smelting iron voltage regulating station
Stove coal powder injection.Normal pressure nitrogen is compressed to 0.8MPa through intermediate pressure compressor 2 and is used for steel rolling, coking and blast furnace ontology, in coking
Inside factory, 0.7MPa is depressurized to using decompression regulating device, it is burnt for the dry breath Jiao Ta breaths in coke-oven plant.Normal pressure nitrogen is compressed through low pressure
Machine 3 is compressed to 0.6MPa, is depressurized to 0.45MPa through smelting iron voltage regulating station, is sealed for blast furnace roof.In addition, low pressure compressor 3 is pressed
The gas of contracting can also be used for the air source of pressure instrument gas of less demanding, cooling air, protection gas, blanket gas.Work as high pressure
When 1 failure of compressor stops production, it is switched to the gas supply of spherical tank 7；When intermediate pressure compressor 2 and/or 3 failure of low pressure compressor or supply not
It is sufficient, the decompression regulating mechanism 9 on open system interior conduit 8, it is ensured that mesolow user gas supply is continuous.
The utility model reduces the power consumption of compressor, by taking certain iron and steel enterprise is for nitrogen system as an example, is for nitrogen total amount
110000Nm3/ h, the nitrogen compression unit consumption for directly depressurizing regulative mode is 0.169kWh/m3, then using Multilevel partial-pressure regulating system
Nitrogen compression unit consumption is reduced to 0.139kWh/m3, annual to be calculated by 350 days, then it is 27,720,000 degree to save electricity year, and electricity price presses 0.63
Member/kwh, annual operating cost can reduce by 17,460,000 yuan, and benefit is considerable.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvements and modifications can also be made, these change
The scope of protection of the utility model is also should be regarded as into modification.
Claims (6)
1. a kind of energy-saving compressed gas Multilevel partial-pressure regulating system, including compressor and pipeline, it is characterised in that：The compression
Machine includes high pressure compressor, intermediate pressure compressor and low pressure compressor, and the outlet of high pressure compressor connects high pressure by pressure duct
User's pipe network；The outlet of intermediate pressure compressor passes through middle pressure piping connection Middle Voltage pipe network；The outlet of low pressure compressor passes through low
Press piping connection low-voltage customer pipe network.
2. a kind of energy-saving compressed gas Multilevel partial-pressure regulating system according to claim 1, it is characterised in that：The height
Pressure pipe road is connected with spherical tank.
3. a kind of energy-saving compressed gas Multilevel partial-pressure regulating system according to claim 1, it is characterised in that：The height
Pressure pipe Lu Yuzhong pressure pipes are provided with pipeline between road, and decompression regulating mechanism is provided on pipeline.
4. a kind of energy-saving compressed gas Multilevel partial-pressure regulating system according to claim 1, it is characterised in that：In described
It is provided with pipeline between pressure pipe road and low pressure line, decompression regulating mechanism is provided on pipeline.
5. a kind of energy-saving compressed gas Multilevel partial-pressure regulating system according to claim 3 or 4, it is characterised in that：Institute
It states decompression regulating mechanism to be made of branch pipe and bypass pipe parallel connection, solenoid valve is provided on branch pipe, regulating valve is provided on bypass pipe.
6. a kind of energy-saving compressed gas Multilevel partial-pressure regulating system according to claim 5, it is characterised in that：The electricity
Filter is provided with before magnet valve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820053837.6U CN207865037U (en) | 2018-01-12 | 2018-01-12 | A kind of energy-saving compressed gas Multilevel partial-pressure regulating system |
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| CN201820053837.6U CN207865037U (en) | 2018-01-12 | 2018-01-12 | A kind of energy-saving compressed gas Multilevel partial-pressure regulating system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107965668A (en) * | 2018-01-12 | 2018-04-27 | 新余钢铁集团有限公司 | A kind of energy-saving compressed gas Multilevel partial-pressure regulating system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107965668A (en) * | 2018-01-12 | 2018-04-27 | 新余钢铁集团有限公司 | A kind of energy-saving compressed gas Multilevel partial-pressure regulating system |
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