CN209752559U - Compressed air drying system - Google Patents
Compressed air drying system Download PDFInfo
- Publication number
- CN209752559U CN209752559U CN201822262643.XU CN201822262643U CN209752559U CN 209752559 U CN209752559 U CN 209752559U CN 201822262643 U CN201822262643 U CN 201822262643U CN 209752559 U CN209752559 U CN 209752559U
- Authority
- CN
- China
- Prior art keywords
- compressed air
- air
- storage tank
- dryer
- ambient temperature
- 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
Landscapes
- Drying Of Gases (AREA)
Abstract
The utility model relates to a compressed air drying system, which comprises an air compressor, a freezing dryer, an adsorption dryer, a corresponding front filter, a rear filter and a fine filter; compressed air at the outlet of the air compressor firstly passes through a buffer tank and a freezing dryer for dewatering and then enters a primary air storage tank, and when the ambient temperature is higher, the exhaust of the primary air storage tank is directly connected to a compressed air main pipe for instruments and processes; when the ambient temperature is lower, the exhaust of the first-stage air storage tank is connected to the second-stage air storage tank after passing through the fine filter and the adsorption dryer, and then is connected to a compressed air main pipe for instruments and processes. The utility model discloses an automatic switching dry mode satisfies the pressure dew point demand of compressed air for the technology when ambient temperature is low under energy-conserving prerequisite.
Description
Technical Field
The utility model relates to a compressed air field especially relates to compressed air drying process.
Background
In industrial projects, the most common requirements for compressed air humidity are pressure dew point-40 deg.C, -20 deg.C and +5 deg.C, respectively. The conventional process requires the compressed air dew point to be +5 ℃, and the instrument compressed air is used according to HG/T20510-2014, which is generally at least 10 ℃ lower than the extreme minimum temperature of the working environment or the local year (season) in history and is usually-20 ℃ or-40 ℃. Therefore, compressed air systems of many industrial projects generally adopt a three-stage treatment method for compressed air, namely compressed air discharged by an air compressor is firstly subjected to primary and secondary dehumidification treatment through a buffer tank and a freezing type dryer to reduce the pressure dew point to about 5 ℃, then enters a process air storage tank, and is connected to a plant area process air pipeline from the air storage tank; and the other path of the process gas storage tank is subjected to three-stage dehumidification treatment by an adsorption dryer and then is connected to the instrument gas storage tank.
By adopting a conventional compressed air system, when the ambient temperature is high, the process compressed air pipeline does not dew, and the system runs normally; when the ambient temperature is lower than the exhaust pressure dew point of the freezing dryer, condensation can occur in the process compressed air pipeline, although the process is less influenced, the condensed liquid water can have adverse effect on the pipeline due to the longer outdoor pipeline, particularly the compressed air pipeline for the large-caliber process adopting the carbon steel pipe.
Disclosure of Invention
The utility model discloses aim at: the common compressed air system is adjusted and optimized, and the running energy consumption is reduced as much as possible while the condensation in the compressed air pipeline for the process is reduced.
The technical scheme of the utility model is that: a compressed air drying system comprises an air compressor, a freezing dryer, an adsorption dryer and corresponding front, rear and fine filters; compressed air at the outlet of the air compressor firstly passes through a buffer tank and a freezing dryer for dewatering and then enters a primary air storage tank, and when the ambient temperature is higher, the exhaust of the primary air storage tank is directly connected to a compressed air main pipe for instruments and processes; when the ambient temperature is lower, the exhaust of the first-stage air storage tank is connected to the second-stage air storage tank after passing through the fine filter and the adsorption dryer, and then is connected to a compressed air main pipe for instruments and processes. The utility model discloses an automatic switching dry mode satisfies the pressure dew point demand of compressed air for the technology when ambient temperature is low under energy-conserving prerequisite.
The utility model has the advantages that: the system is simple, the design and implementation cost is low, the operation is reliable, and the problem of condensation of the compressed air pipeline is solved on the premise of energy conservation.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic view of a compressed air drying system.
Detailed Description
The optimized compressed air system comprises an air compressor, a freezing type dryer, an adsorption type dryer and corresponding front, rear and fine filters. Compressed air at the outlet of the air compressor firstly passes through a buffer tank and a freezing dryer for dewatering and then enters a primary air storage tank, and when the ambient temperature is higher, the exhaust of the primary air storage tank is directly connected to a compressed air main pipe for instruments and processes; when the ambient temperature is lower, the exhaust of the first-stage air storage tank is connected to the second-stage air storage tank after passing through the fine filter and the adsorption dryer, and then is connected to a compressed air main pipe for instruments and processes.
The switching method of the compressed air drying process is automatic switching and is switched by an electric valve (pneumatic valve) on a pipeline. When the outdoor temperature is low, the adsorption dryer and the pipeline valve are automatically opened, and the bypass valve is closed at the same time; when the outdoor temperature is high (the specific value is required according to the meteorological conditions of various regions), the adsorption dryer and the pipeline valve are automatically closed, and the bypass valve is opened, which is shown in detail in figure 1. The opening and closing control temperature is determined according to the actual local meteorological conditions and the actual pressure dew point of the exhaust gas of the freezing type dryer. The suggested temperature control method comprises the following steps: when the average temperature is higher than 12 ℃, opening an electrically operated valve of a bypass of the adsorption dryer, and closing the adsorption dryer; when the average temperature is lower than 8 ℃, closing the electric valve of the bypass of the adsorption dryer and starting the adsorption dryer; when the average temperature is between 8 and 12 ℃, the operation mode is determined according to the lowest temperature so as to avoid frequent start and stop of the adsorption dryer.
Claims (2)
1. A compressed air drying system comprises an air compressor, a freezing dryer, an adsorption dryer and corresponding front, rear and fine filters; the outlet of the air compressor is sequentially connected with the buffer tank and the freezing type dryer and then connected with the primary air storage tank; it is characterized in that the exhaust of the primary air storage tank is directly connected to a compressed air main pipe for instruments and processes.
2. The compressed air drying system of claim 1, wherein the primary air tank exhausts air to connect to a fine filter, an adsorption dryer, and then to connect to a secondary air tank, and the secondary air tank exhausts air to a master compressed air pipe for instrumentation and process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822262643.XU CN209752559U (en) | 2018-12-30 | 2018-12-30 | Compressed air drying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822262643.XU CN209752559U (en) | 2018-12-30 | 2018-12-30 | Compressed air drying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209752559U true CN209752559U (en) | 2019-12-10 |
Family
ID=68748066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822262643.XU Active CN209752559U (en) | 2018-12-30 | 2018-12-30 | Compressed air drying system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209752559U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110201497A (en) * | 2018-12-30 | 2019-09-06 | 上海康恒环境股份有限公司 | A kind of compressed air drying system |
| CN113857469A (en) * | 2021-10-22 | 2021-12-31 | 台山市天丞汽车配件有限公司 | Gravity casting equipment |
-
2018
- 2018-12-30 CN CN201822262643.XU patent/CN209752559U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110201497A (en) * | 2018-12-30 | 2019-09-06 | 上海康恒环境股份有限公司 | A kind of compressed air drying system |
| CN113857469A (en) * | 2021-10-22 | 2021-12-31 | 台山市天丞汽车配件有限公司 | Gravity casting equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110201497A (en) | A kind of compressed air drying system | |
| CN209752559U (en) | Compressed air drying system | |
| CN101524617A (en) | Method for removing moisture in gases by a Nafion tube | |
| CN110207280A (en) | Dehumidifier with completely new wind moisture, temperature independent control function | |
| CN202983467U (en) | Temperature control device of adsorptive drier with zero gas consumption | |
| CN209752563U (en) | Cold dryer for drying compressed air | |
| CN209271135U (en) | One kind heating regenerated compressed air air supply system based on steam | |
| CN2937505Y (en) | Surge-preventing air-bleed system of compressor of heavy-duty combustion turbine | |
| CN215388526U (en) | Active carbon vacuum electric desorption device | |
| CN114733325A (en) | Intelligent controllable maintenance-free dehumidification device and dehumidification method thereof | |
| CN211562443U (en) | Compressed air source system | |
| CN212158087U (en) | Grain drying system | |
| CN209302433U (en) | A kind of integrated form instrument compressed air source unit | |
| CN208553669U (en) | A kind of drying system for compressed gas | |
| CN204261544U (en) | A kind of regeneration tolerance auto-control energy-saving device of absorption type dryer | |
| CN114153255A (en) | Temperature and humidity pressure test box control method and system | |
| CN205672748U (en) | A kind of raising instrument supply gas compressor dew point device | |
| CN207795510U (en) | A kind of air compressor machine after-treatment system drainage arrangement | |
| CN110701026A (en) | Water vapor treatment device of compressed air system | |
| CN219559208U (en) | Dual drying device of chemical instrument air supply | |
| CN205109337U (en) | Freezing formula blast dryer | |
| CN209362181U (en) | Combination type drying machines silencing means | |
| CN220696311U (en) | Molecular sieve dewatering device | |
| CN215609993U (en) | Multistage filtering and purifying device for nitrogen production equipment | |
| CN215113005U (en) | Air cooling and dehumidifying device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |