CN209968059U - Compressed air supply purification pretreatment system - Google Patents
Compressed air supply purification pretreatment system Download PDFInfo
- Publication number
- CN209968059U CN209968059U CN201821965416.7U CN201821965416U CN209968059U CN 209968059 U CN209968059 U CN 209968059U CN 201821965416 U CN201821965416 U CN 201821965416U CN 209968059 U CN209968059 U CN 209968059U
- Authority
- CN
- China
- Prior art keywords
- compressed air
- air
- cooler
- temperature
- cooling
- 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.)
- Active
Links
- 238000000746 purification Methods 0.000 title claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 37
- 238000001816 cooling Methods 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 claims abstract description 5
- 239000010865 sewage Substances 0.000 claims description 7
- 230000017525 heat dissipation Effects 0.000 claims description 3
- 239000000839 emulsion Substances 0.000 abstract description 4
- 238000003860 storage Methods 0.000 abstract description 4
- 238000004887 air purification Methods 0.000 abstract 1
- 230000001360 synchronised effect Effects 0.000 abstract 1
- 239000012535 impurity Substances 0.000 description 10
- 239000000428 dust Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 239000008400 supply water Substances 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000013527 degreasing agent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
Images
Landscapes
- Compressor (AREA)
- Drying Of Gases (AREA)
Abstract
The utility model relates to a compressed air feed purification pretreatment systems, include: the device comprises a coil pipe, a plate-fin heat exchanger, a cooling fan, a PLC (programmable logic controller), an electric valve, a temperature sensor, an air storage tank, a high-efficiency oil remover and the like, which are sequentially connected by pipelines. The compressed air is subjected to a pretreatment system to control the temperature of the compressed air to be below 35 ℃, emulsion in the compressed air is controlled to be within 10 percent, and a foundation can be laid for the subsequent cooling dryer to carry out temperature control on the compressed air and carry out compressed air purification on an air filter. The air cooling part comprises a plate-fin heat exchanger and an axial flow fan, and the running process of the air compressor is synchronous with that of the axial flow fan; the water cooling part comprises a coil pipe and an electric water supply valve, and the electric valve is provided with a large water control gear and a small water control gear.
Description
Technical Field
The utility model relates to a compressed air preparation field especially relates to a compressed air feed purification pretreatment systems.
Background
The compressed air has wide application in the industrial field and has strict requirements on the quality of the compressed air. Compressed air is required to keep oil-free, water-free and dust-free particles and other impurity components in various fields. Impurities in the compressed air exist in the form of emulsion after being cooled and separated, and the impurities are not completely removed, so that damage to various devices is caused.
The air compressor is the main equipment of production compressed air, and in order to clear away the harmful substance in the compressed air, mostly the air compressor was equipped with freeze dryer and multistage air cleaner in the past, then reduces the dew point temperature of compressed air through freeze dryer, can clear away the impurity in the compressed air through air cleaner. The compressed air needs to achieve the purification effect of completely removing impurities, the dew point temperature of the compressed air needs to be controlled, the control range is usually regulated to reach 2-3 ℃, if the dew point temperature is too low, condensed liquid in the compressed air can be frozen to damage equipment, and if the dew point temperature is too high, impurities in the compressed air can be difficult to form the condensed liquid and cannot be separated, removed and removed.
The precondition for controlling the temperature of the compressed air in the freeze dryer to 2-3 ℃ is that the temperature of the air inlet must be ensured not to exceed 45 ℃, for example, 45 ℃ and the temperature of the outlet of the freeze dryer will be increased, that is, the temperature of the compressed air cannot be controlled to 2-3 ℃. The temperature of the gas produced by the air compressor is more than 80 ℃. According to the observation, when the gas generated by the air compressor directly enters the freeze dryer in an untreated state, the temperature of the compressed air at the outlet of the freeze dryer is higher than 15 ℃, and some compressed air can be higher than 20 ℃ or even higher, so that the temperature of the compressed air at the outlet of the freeze dryer is greatly different from the required temperature of the air outlet of the freeze dryer which must reach the requirement or regulation of 2-3 ℃, which is also a main reason why the impurities in the compressed air are difficult to completely remove.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a to the not enough of above-mentioned prior art, provide one kind before the freeze dryer, can control the compressed air temperature and be not higher than 35 ℃ to can control impurity control such as profit, dust particulate matter in the compressed air at 10 about% compressed air supply purification pretreatment systems.
The technical scheme of the utility model is that: a compressed air supply purification pre-treatment system comprising: the device comprises a water cooling coil, an electric valve, a plate-fin heat exchanger, a cooling fan, a PLC, a temperature sensor, an air storage tank, a high-efficiency oil remover, an electronic sewage disposal device and the like. The method comprises the following steps: the water cooling coil, the plate-fin heat exchanger, the electric valve, the cooling fan, the PLC, the temperature sensor, the air storage tank, the efficient oil remover and the like are sequentially connected through the gas pipeline.
After air cooling and water cooling are carried out through the cooler, the temperature of the compressed air can be controlled within 35 ℃, most of impurities such as oil vapor, water vapor, dust particles and the like in the compressed air can form emulsion under the action of low temperature, and the emulsion is discharged outdoors through the electric blow-down valve after being separated by the oil-water separator, precipitated by the air storage tank and intercepted by the high-efficiency degreaser, at the moment, the dew point temperature of the compressed air can be controlled within 35 ℃, and meanwhile, more than 90% of impurities such as oil vapor, dust particles and the like in the compressed air can be removed. The foundation is laid for deep purification of compressed air without a subsequent freeze dryer and subsequent multi-stage air filtration.
The bottom of the oil-water separator, the efficient oil remover and the air buffer tank is provided with a blowdown device, the blowdown device adopts an electric valve, and the dirty liquid collected by the compressed air pretreatment system and separated and precipitated in the oil-water separator, the efficient oil remover and the air buffer tank is discharged outdoors through an electric blowdown valve.
The cooler is internally provided with a wind cooling part and a water circulation cooling part, the wind cooling part is provided with a plate-fin heat exchanger and a fan, the water circulation cooling part is provided with an electric valve with two control gears, the water cooling of the cooler takes tap water as a water source, and the water supply amount is controlled through the electric valve.
The air cooling part of the cooler cools the plate-fin heat exchanger in a mode of blowing strong wind by the fan, and when compressed air passes through the plate-fin heat exchanger, a cooling effect can be obtained; when the temperature of the air outlet of the cooler is higher than 32 ℃, the electric valve is started to be at a low gear, at the moment, water enters the cooler to cool the cooling coil pipe in a heat dissipation mode, if the temperature of compressed air is higher than 35 ℃, the electric valve is started to be at a high gear, at the moment, the electric valve is started to be at a high gear to increase the water supply amount, and therefore the heat dissipation rate of the water cooling coil pipe is increased.
The gas outlet position of the cooler is provided with a temperature sensor for detecting the real-time temperature of gas at the outlet of the cooler, and the temperature sensor can be a PT100 temperature sensor.
And the cooler air outlet temperature sensor, the fan and the electric valve are respectively connected with the PLC and controlled by the PLC.
And the temperature sensor at the air outlet of the cooler, the fan and the analog quantity signal and the digital quantity signal of the electric valve are transmitted to the PLC through cables, then the PLC controls the electric valve and the fan to be opened, and the water supply flow of the water circulation cooling part and the wind speed of the wind cooling system are adjusted.
The control method of the cooler portion includes the steps of: the air compressor is started, the fan of the cooler is synchronously started to operate, the temperature of the air outlet of the cooler is higher than 32 degrees, the electropneumatic valve is started to supply water at a low level, the temperature of the compressed air is higher than 35 degrees, and the electropneumatic valve is switched to supply water at a high level; and when the temperature of the compressed air is lower than 35 ℃, the electric valve switches the low-grade water supply flow, the temperature of the compressed air is lower than 32 ℃, and the electric valve is closed.
The utility model has the advantages and positive effects that: due to the adoption of the technical scheme, favorable conditions can be created for the freeze dryer to deeply cool the compressed air and for the air filter to completely remove harmful substances in the compressed air. The temperature of the compressed air at the air inlet of the refrigeration dryer can be controlled within 35 ℃, and substances such as oil, water, dust particles and the like in the compressed air can be controlled within 10%, so that the compressed air can realize the air supply index of oil-free purification of the compressed air after passing through the refrigeration dryer and the multistage air filter.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure:
1. air compressor 2, cooler 3, oil-water separator
4. Air buffer tank 5, high-efficiency oil remover 6 and electric pollution discharge device
7. Electric valve 8, common-fin heat exchanger 9 and fan
10. Temperature sensor 11, electronic blowdown ware 12, electronic blowdown ware
Detailed Description
As shown in fig. 1, the utility model relates to a compressed air supply purification pretreatment system, which comprises an air compressor 1 and a high-efficiency oil remover 5, wherein a cooler 2, an oil-water separator 3 and an air buffer tank 4 are arranged between the air compressor 1 and the high-efficiency oil remover 5;
the air compressor 1, the cooler 2, the oil-water separator 3, the air buffer tank 4 and the high-efficiency oil remover 5 are sequentially connected through a gas pipeline.
The lower ends of the oil-water separator 3, the air buffer tank 4 and the high-efficiency oil remover 5 are respectively provided with a movable sewage drainer 6, an electric sewage drainer 11 and an electric sewage drainer 12.
The cooler 2 is internally provided with a water circulation cooling part which is provided with an electric valve 7.
The electric valve 7 is a functional structure capable of adjusting the opening degree, and a temperature sensor 10 is arranged at the position of an air outlet of the cooler 2.
And a plate-fin heat exchanger 8 and a fan 9 are also arranged in the cooler 2. The fan runs synchronously with the air compressor and is a main facility for cooling the compressed air, and when the temperature of the compressed air is higher than a set value, the fan is supported by a water cooling device.
And the temperature sensor 10, the electric valve 7, the electric blow-off valve and the PLC are respectively connected with a power supply and a controller.
The utility model discloses a temperature of compressed air is controlled to cooler 2, realizes for the condition that the freeze dryer created the degree of depth cooling, the control method of cooler 2 includes following step: the air compressor 1 is started, the fan of the cooler 2 is synchronously started to operate, if the temperature of the compressed air is higher than 32 ℃, the electropneumatic valve starts low-grade water supply, and if the temperature of the compressed air is higher than 35 ℃, the electropneumatic valve starts high-grade water supply; if the temperature of the compressed air is lower than 35 ℃, the electropneumatic valve is switched to the low-gear water supply amount, the temperature of the compressed air is lower than 32 ℃, and the electropneumatic valve is closed.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.
Claims (2)
1. A compressed air supply purification pretreatment system comprises an air compressor (1) and a high-efficiency oil remover (5), wherein a cooler (2), an oil-water separator (3) and an air buffer tank (4) are arranged between the air compressor (1) and the high-efficiency oil remover (5);
the air compressor (1), the cooler (2), the oil-water separator (3), the air buffer tank (4) and the high-efficiency oil remover (5) are sequentially connected through a gas pipeline;
the method is characterized in that:
the cooler (2) is internally provided with two parts of water circulation cooling and air cooling, and the water circulation cooling comprises a heat dissipation coil pipe and an electric valve (7); the air cooling part comprises a plate-fin heat exchanger (8) and a fan (9);
the electric valve (7) can be adjusted to open with two gears, and an air outlet temperature sensor (10) is arranged at the position of an air outlet of the cooler (2).
2. The compressed air supply purification pretreatment system of claim 1, wherein: the lower ends of the cooler (2), the oil-water separator (3), the air buffer tank (4) and the high-efficiency oil eliminator (5) are respectively provided with an electronic sewage drainer (6), an electronic sewage drainer (11) and an electronic sewage drainer (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821965416.7U CN209968059U (en) | 2018-11-27 | 2018-11-27 | Compressed air supply purification pretreatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821965416.7U CN209968059U (en) | 2018-11-27 | 2018-11-27 | Compressed air supply purification pretreatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209968059U true CN209968059U (en) | 2020-01-21 |
Family
ID=69250187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821965416.7U Active CN209968059U (en) | 2018-11-27 | 2018-11-27 | Compressed air supply purification pretreatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209968059U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109395545A (en) * | 2018-11-27 | 2019-03-01 | 山东威高集团医用高分子制品股份有限公司 | Compressed air gas supply purification pretreatment system |
-
2018
- 2018-11-27 CN CN201821965416.7U patent/CN209968059U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109395545A (en) * | 2018-11-27 | 2019-03-01 | 山东威高集团医用高分子制品股份有限公司 | Compressed air gas supply purification pretreatment system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101641462B (en) | Flue gas cooling and cleaning system | |
| CN202724862U (en) | Oil purification device | |
| CN102297133B (en) | Full performance scroll compressor all-in-one machine | |
| CN202270424U (en) | Centrifugal type oil purifier | |
| CN101804278A (en) | Flue gas purification method and device of electrolytic aluminum smelting furnace and heat preserving furnace | |
| CN209968059U (en) | Compressed air supply purification pretreatment system | |
| CN102974165A (en) | Centrifugal oil purifier | |
| CN202724861U (en) | Oil filtering equipment | |
| CN206935026U (en) | A kind of desulfidation tail gas remove smoke white haze device | |
| CN203892154U (en) | Vacuum treatment device | |
| CN103103015A (en) | Special engine oil filter with electromagnetic filtration device and oil filtration method | |
| CN203458961U (en) | Compressed air purification device and compressed air purification and freeze-drying device | |
| CN218442325U (en) | System for liquefying and separating oil in pyrolysis gas | |
| CN201187933Y (en) | Compressed air purifier | |
| CN110721557A (en) | Device and method for drying and purifying compressed gas | |
| CN103949139B (en) | A kind of compressed air purifier and compressed air purifying freeze drying plant | |
| CN212492179U (en) | Flue gas purification system | |
| CN210786488U (en) | Oil purification device suitable for metallurgical system | |
| CN208785947U (en) | A kind of oil liquid vacuum intelligent filtering water scavenging system | |
| CN208313068U (en) | A kind of device for preventing furnace gas tar to be precipitated in mineral hot furnace dust pelletizing system | |
| CN109395545A (en) | Compressed air gas supply purification pretreatment system | |
| CN202724863U (en) | Two-stage vacuum oil purifier | |
| CN103055544A (en) | Coalescing vacuum type oil cleaning device | |
| CN108731487A (en) | A kind of method and device for preventing furnace gas tar to be precipitated in mineral hot furnace dust pelletizing system | |
| RU2692436C1 (en) | Compressor unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |