A device for improving the quality of compressed air
By introducing a pretreatment device consisting of an air storage section, a filtration section, and an ionization chamber into the compressed air system, the problems of impurities and moisture in the compressed air are solved, achieving efficient filtration and stable operation, reducing energy consumption, and ensuring equipment reliability and production continuity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BAOTOU IRON & STEEL (GROUP) CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-07-24
AI Technical Summary
Existing compressed air dryers cannot effectively filter fine particulate impurities and contaminants during air intake, resulting in unstable compressed air quality, affecting equipment life and production. Furthermore, during dryer maintenance, the control gate valve may not close tightly, causing the equipment to operate with defects.
The pretreatment device, which is arranged in series, includes an air storage section, a filtration section, and an ionization chamber. The compressed air is pretreated by filtering through fiber filter groups and activated carbon filter groups, combined with ionization plates to remove moisture and impurities. Then, it enters the dryer for deep drying and uses medium-pressure steam and waste heat for cooling and sterilization.
It improves the filtration effect of compressed air, ensures stable gas quality, reduces energy consumption, and enables stable operation and convenient maintenance of equipment.
Smart Images

Figure CN224541304U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of compressed air operation technology, and specifically relates to a device for improving the operation quality of compressed air. Background Technology
[0002] With the increasing modernization of industry, compressed air, as a cheap and clean power source, is widely used in fields such as industrial micro-technology, pharmaceutical research, textiles, and food processing. Compared with other power sources, in addition to the easy availability of raw materials, it also has advantages such as being non-toxic and harmless, non-flammable, easy to transport, and convenient to use.
[0003] The widespread use of compressed air in industry has made it one of the major energy consumers in modern industry. However, before post-processing equipment, compressed air often contains a large amount of moisture and solid particles. Direct use in equipment can cause corrosion and rust on pipes and metal parts, malfunction of pneumatic components and control instruments, and shorten the service life of equipment. In terms of process technology, compressed air is used in various industries such as chemical engineering and telecommunications, where the requirements for compressed air quality are relatively high.
[0004] In existing technology, each dryer in a drying station has a manual control gate valve and a pneumatic shut-off valve. When a single dryer's shut-off gate valve is being inspected, the control gate valve is closed. However, if the control gate valve does not close tightly, the dryer cannot be inspected. Compressed air is widely used, and since dryers require maintenance but cannot be stopped immediately, this can easily lead to equipment operating with defects, affecting compressed air quality, causing malfunctions in production equipment and instruments. Furthermore, the quality of compressed air supplied to all users along the entire heavy plate production line cannot be guaranteed, directly impacting production.
[0005] Furthermore, existing compressed air dryers allow compressed air to directly enter the drying station during intake, which cannot effectively filter out fine particulate impurities and pollutants mixed in with the air. Consequently, the air filtration effect cannot be improved, and ultimately, it is difficult to guarantee the quality of the gas output by the compressed air dryer, which has certain limitations.
[0006] In view of the above factors, a device is provided to improve the operating quality of compressed air, ensuring that the compressed air can operate stably with improved quality. The device adopts a series configuration to improve the air filtration effect, while the pre-treatment device pre-treats the compressed air to remove a large amount of moisture first, and then enters the adsorption dryer for deep drying, ultimately ensuring the quality of the gas output from the compressed air drying station. Utility Model Content
[0007] The purpose of this invention is to provide a device for improving the quality of compressed air operation, thereby solving the problems mentioned in the background art.
[0008] The purpose of this utility model is achieved through the following technical solution: a device for improving the operating quality of compressed air, including a pretreatment device, wherein the pretreatment device is provided with at least two sets of air intake pipes connected to the drying station, and the drying station includes multiple sets of drying towers arranged in parallel;
[0009] The pretreatment device is connected to the medium-pressure steam pipeline in the plant area. The pretreatment device includes a gas storage section and a filtration section, which are connected in series.
[0010] The pretreatment device is housed in a movable box and is detachably connected to the air intake pipe of the drying station.
[0011] Furthermore, the detachable connection between the pretreatment device and the air intake pipe of the drying station is a flange bolt connection.
[0012] Furthermore, a compressed air bypass gate valve is installed between the air inlet pipe and the air outlet pipe of the drying station, and a compressed air inlet gate valve and a compressed air outlet gate valve are also installed on the air inlet pipe and the air outlet pipe.
[0013] The compressed air inlet gate valve and the compressed air outlet gate valve are located near one end of the pretreatment device.
[0014] Furthermore, the gas storage section of the pretreatment device includes a gas storage tank, which is connected to the filtration section via a connecting pipe;
[0015] The pretreatment device also includes a drying device connected in series with the filtration section.
[0016] Furthermore, the drying device includes a housing and a heat exchanger disposed within the housing. The heat exchanger is connected to the outlet of the cooling device via a pipe, and the inlet of the cooling device is connected to the inlet of the filter section.
[0017] Furthermore, the cooling device includes a refrigeration unit and a refrigerant pipeline connected to the refrigeration unit, the refrigerant pipeline being connected to the cooling box;
[0018] The refrigerant pipes are arranged in a spiral structure within the cooling box.
[0019] Furthermore, the filtration section includes at least two filtration forms, namely a fiber filtration group and an activated carbon filtration group.
[0020] The filtration section adopts a box structure, with fiber filter groups and activated carbon filter groups arranged alternately inside the box structure. The box structure is provided with an inlet and an outlet.
[0021] Furthermore, an ionization chamber is provided between the pretreatment device and the air inlet pipe of the drying station. An ionization plate is provided in the ionization chamber. The ionization plates are spaced apart and have several through holes. Each through hole is provided with a pointed body.
[0022] Furthermore, the medium-pressure steam pipeline in the plant area is connected to the heat exchanger, and a water distribution and drainage chamber is fixedly installed on the outlet pipeline of the cooling box, with a valve fixedly installed at the bottom of the water distribution and drainage chamber.
[0023] A method for applying a device to improve the operating quality of compressed air specifically includes the following steps;
[0024] Compressed air enters the storage tank in the storage section. The storage tank is connected to the filter section via a connecting pipe. After being filtered by the filter section, the compressed air enters the drying device for primary drying. The drying device cools the compressed air discharged from the air compressor, lowering its temperature below the dew point temperature. This causes the large amount of water vapor contained in the compressed air to condense into droplets and precipitate out. The drying device includes a housing and a heat exchanger installed inside the housing. The heat exchanger is connected to the outlet of the cooling device via a pipe, and the inlet of the cooling device is connected to the inlet of the filter section. The humid air at the inlet of the cooling device first enters the heat exchanger and is pre-cooled by the cold air of the compressed air cooled by the evaporator, thereby reducing the heat load of the refrigeration system and achieving the purpose of saving energy.
[0025] After being dried once, the compressed air enters the ionization chamber. To facilitate the treatment of the pre-treated compressed air by setting up the ionization chamber during use, the aforementioned ionization chamber is connected to an external high-voltage generator via a connecting line. The compressed air is sterilized by the ionization plate in the ionization chamber. The ionization plate has several evenly distributed through holes to facilitate the flow of compressed air. The through holes are circular, and a pointed body integrally formed with the ionization plate is fixedly set at the edge of the through hole. The pointed body has a triangular structure and extends outward from the through hole. Two or three pointed bodies are evenly distributed along the circumference of the through hole to increase the ionization effect.
[0026] After being sterilized, the compressed air enters the drying station for secondary treatment, and the secondary-treated compressed air is discharged through the outlet pipe.
[0027] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0028] In order to facilitate the filtration of compressed air during use, this utility model includes at least two filtration forms, namely a fiber filtration group and an activated carbon filtration group.
[0029] In order to facilitate the treatment of compressed air processed by the pretreatment device by setting up an ionization chamber during use, the present invention provides an ionization chamber between the pretreatment device and the air intake pipe of the drying station. The ionization chamber is provided with ionization plates, which are spaced apart. Several through holes are opened on the ionization plates, and a pointed body is provided on each through hole.
[0030] In the field of compressed air drying equipment, this utility model utilizes industrial medium-pressure steam or waste heat to reduce energy consumption while meeting factory needs, thus achieving energy conservation and emission reduction.
[0031] This invention ensures that compressed air can operate stably with improved quality. It adopts a series configuration to improve the air filtration effect, while a pre-treatment device pre-treats the compressed air to remove a large amount of moisture before it enters an adsorption dryer for deep drying, thus ensuring the quality of the gas output from the compressed air drying station. Attached Figure Description
[0032] Figure 1 This is a schematic diagram showing the connection between the pretreatment device and the drying station of this utility model;
[0033] Figure 2 This is a schematic diagram of the air inlet and outlet pipes of the drying station of this utility model;
[0034] Figure 3 This is a schematic diagram of the internal structure of the pretreatment device of this utility model;
[0035] Figure 4 This is a schematic diagram of the drying device of this utility model;
[0036] Figure 5 This is a schematic diagram of the cross-section of the ionization chamber of this utility model. Detailed Implementation
[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0038] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0039] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0040] like Figure 1-5 As shown, an apparatus for improving the quality of compressed air operation includes a pretreatment device 1, wherein the pretreatment device 1 is provided with at least two sets of air intake pipes connected to a drying station 2, and the drying station 2 includes multiple sets of drying towers 3 arranged in parallel.
[0041] Among them, drying station 2 is a micro-heat regeneration adsorption dryer disclosed in the prior art, which adopts the adsorption principle of micro-heat regeneration to achieve the purpose of drying compressed air. Ordinary compressed air passes through the wide and thick plate drying station to adsorb and remove moisture from the compressed air.
[0042] The pretreatment device 1 is connected to the medium-pressure steam pipeline 4 in the plant area. The pretreatment device 1 includes a gas storage section 5 and a filter section 6, which are connected in series.
[0043] The pretreatment device 1 is placed inside the movable housing 7, and the pretreatment device 1 is detachably connected to the air intake pipe of the drying station 2.
[0044] The detachable connection between the pretreatment device 1 and the air intake pipe of the drying station 2 is a flange bolt connection.
[0045] To facilitate maintenance of the equipment during use, a compressed air bypass gate valve 2C is installed between the air inlet pipe 2A and the air outlet pipe 2B of the drying station 2. A compressed air inlet gate valve 2D and a compressed air outlet gate valve 2E are also installed on the air inlet pipe 2A and the air outlet pipe 2B.
[0046] The compressed air inlet gate valve 2D and the compressed air outlet gate valve 2E are located near one end of the pretreatment device 1.
[0047] The drying station 2 includes multiple drying towers 3 arranged in parallel. Each drying tower 3 is equipped with an air inlet gate valve. The drying towers 3 are arranged from left to right as tower C / tower D. The three towers C / towers are arranged in parallel. Each tower C / tower is equipped with a tower C air inlet gate valve and a tower D air inlet gate valve.
[0048] When three of the three sets of C / D towers fail, close the inlet and outlet gate valves on the three parallel C towers and carry out maintenance.
[0049] When three of the three sets of C / D towers fail, close the inlet and outlet gate valves of the three parallel D towers and carry out maintenance.
[0050] If the 12 gate valves at the inlet / outlet of the C tower in the three drying stations are not tight, the compressed air inlet gate valve and the compressed air outlet gate valve should be closed and the compressed air bypass gate valve should be opened for maintenance.
[0051] In order to facilitate the buffering of compressed air through the air storage section 5 during use, the air storage section 5 of the pretreatment device 1 includes an air storage tank 9, which is connected to the filter section 6 through a connecting pipe.
[0052] The pretreatment device 1 also includes a drying device 10 connected in series with the filter section 6.
[0053] The filter section 6, the gas storage tank 9, and the drying device 10 are fixed in the pretreatment device 1 by steel structure support (bolts or welding).
[0054] The aforementioned air storage section 5 buffers compressed air, and in use, compressed air is introduced into the drying station 2 via an air pump.
[0055] To facilitate the cooling and temperature reduction of the compressed gas discharged from the air compressor during use, so that the temperature of the compressed air drops below the dew point temperature, thereby causing the large amount of water vapor contained therein to condense into droplets, the drying device 10 includes a housing 11 and a heat exchanger 12 installed in the housing 11. The heat exchanger 12 is connected to the outlet of the cooling device 13 through a pipe, and the inlet of the cooling device 13 is connected to the inlet of the filter section 6.
[0056] The cooling device 13 includes a refrigerator 14 and a refrigerant pipe 15 connected to the refrigerator 14, and the refrigerant pipe 15 is connected to the cooling box 16.
[0057] The refrigerant pipe 15 is arranged in a spiral structure inside the cooling box 16.
[0058] In the aforementioned cooling device 13, the humid air at the inlet first enters the heat exchanger, and is pre-cooled by the cold energy of the compressed air cooled by the evaporator, thereby reducing the heat load of the refrigeration system and achieving the purpose of saving energy.
[0059] In order to facilitate the filtration of compressed air by setting up a filter section during use, the filter section 6 includes at least two sets of filtration forms, including a fiber filter group 17 and an activated carbon filter group 18.
[0060] The filter section 6 adopts a box structure, with fiber filter group 17 and activated carbon filter group 18 arranged alternately inside the box structure. The box structure has an inlet and an outlet.
[0061] By setting up two sets of filters, the compressed air can be filtered as much as possible during use. The fiber filter group 17 and the activated carbon filter group 18 are installed in the housing structure in a detachable manner. The detachable method is bolt connection or plug connection. The upper part of the housing structure is connected to the side door by a hinge. The side door and the housing structure are sealed. The sealing can be done using existing technology.
[0062] To facilitate the treatment of compressed air processed by the pretreatment device 1 through the ionization chamber 19 during use, an ionization chamber 19 is provided between the pretreatment device 1 and the air intake pipe of the drying station 2. An ionization plate 20 is provided in the ionization chamber 19. The ionization plates 20 are spaced apart and have several through holes. Each through hole is provided with a pointed body 22.
[0063] The outlet of the ionization chamber 19 is connected to the air inlet pipe of the drying station by flange bolts.
[0064] The aforementioned ionization chamber 19 is connected to an external high-voltage generator via a connecting line. The compressed air is sterilized by the ionization plate 20 inside the ionization chamber 19. The ionization plate 20 has several evenly distributed through holes to facilitate the flow of compressed air. The through holes are circular. Pointed bodies 22 are fixedly installed at the edge of the through holes and are integrally formed with the ionization plate 20 (metal structure). The pointed bodies 22 are triangular in structure and extend outward from the through holes. Two or three pointed bodies 22 are evenly distributed along the circumference of the through holes to increase the ionization effect.
[0065] To facilitate energy utilization during operation, compressed air is heated and dried by passing through the medium-pressure steam pipeline 4 in the plant area. The heat exchanger 12 can be any form disclosed in the prior art. The medium-pressure steam pipeline 4 in the plant area is connected to the heat exchanger 12. A water distribution and drainage chamber 21 is fixedly installed on the outlet pipe of the cooling box 16, and a valve is fixedly installed at the bottom of the water distribution and drainage chamber 21.
[0066] A method for applying a device to improve the operating quality of compressed air specifically includes the following steps;
[0067] Compressed air enters the storage tank 9 in the storage section 5. The storage tank 9 is connected to the filter section 6 via a connecting pipe. After being filtered by the filter section 6, the compressed air enters the drying device 10 for primary drying. The drying device 10 cools and lowers the temperature of the compressed air discharged from the air compressor, reducing the temperature below the dew point temperature. This causes the large amount of water vapor contained in the compressed air to condense into droplets and precipitate out. The drying device 10 includes a housing 11 and a heat exchanger 12 installed inside the housing 11. The heat exchanger 12 is connected to the outlet of the cooling device 13 via a pipe. The inlet of the cooling device 13 is connected to the inlet of the filter section 6. The humid air at the inlet of the cooling device 13 first enters the heat exchanger and is pre-cooled by the cold air of the compressed air cooled by the evaporator, thereby reducing the heat load of the refrigeration system and achieving the purpose of saving energy.
[0068] After being dried once, the compressed air enters the ionization chamber 19. In order to facilitate the treatment of the compressed air processed by the pretreatment device 1 by setting up the ionization chamber 19 during use, the ionization chamber 19 is connected to an external high-voltage generator through a connecting line. The compressed air is sterilized by the ionization plate 20 in the ionization chamber 19. The ionization plate 20 has several evenly distributed through holes to facilitate the flow of compressed air. The through holes are circular. Points 22 are fixedly set at the edge of the through holes and are integrally formed with the ionization plate 20. The points 22 are triangular in structure and extend outward from the through holes. Two or three points 22 are evenly distributed along the circumference of the through holes to increase the ionization effect.
[0069] After being sterilized, the compressed air enters the drying station for secondary treatment, and the secondary-treated compressed air is discharged through the outlet pipe.
[0070] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0071] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A device for improving the operating quality of compressed air, characterized in that: It includes a pretreatment device (1), which is provided with at least two sets of air inlet pipes (2A) connected to the drying station (2), and the drying station (2) includes multiple sets of drying towers (3) arranged in parallel; The pretreatment device (1) is connected to the medium-pressure steam pipeline (4) in the plant area. The pretreatment device (1) includes a gas storage section (5) and a filter section (6), which are connected in series. The pretreatment device (1) is placed inside a movable housing (7), and the pretreatment device (1) is detachably connected to the air intake pipe of the drying station (2).
2. The device for improving the operating quality of compressed air according to claim 1, characterized in that: The detachable connection between the pretreatment device (1) and the air inlet pipe (2A) of the drying station (2) is a flange bolt connection.
3. The device for improving the operating quality of compressed air according to claim 2, characterized in that: A compressed air bypass gate valve (2C) is provided between the air inlet pipe (2A) and the air outlet pipe (2B) of the drying station (2). A compressed air inlet gate valve (2D) and a compressed air outlet gate valve (2E) are also provided on the air inlet pipe (2A) and the air outlet pipe (2B). The compressed air inlet gate valve (2D) and compressed air outlet gate valve (2E) are located close to one end of the pretreatment device (1).
4. The device for improving the operating quality of compressed air according to claim 3, characterized in that: The gas storage section (5) of the pretreatment device (1) includes a gas storage tank (9), which is connected to the filter section (6) via a connecting pipe. The pretreatment device (1) also includes a drying device (10) connected in series with the filter section (6).
5. The device for improving the operating quality of compressed air according to claim 4, characterized in that: The drying device (10) includes a housing (11) and a heat exchanger (12) disposed in the housing (11). The heat exchanger (12) is connected to the outlet of the cooling device (13) through a pipe, and the inlet of the cooling device (13) is connected to the inlet of the filter section (6).
6. The device for improving the operating quality of compressed air according to claim 5, characterized in that: The cooling device (13) includes a refrigerator (14) and a refrigerant pipe (15) connected to the refrigerator (14), and the refrigerant pipe (15) is connected to the cooling box (16); The refrigerant pipe (15) is arranged in a spiral structure inside the cooling box (16).
7. The device for improving the operating quality of compressed air according to claim 6, characterized in that: The filtration section (6) includes at least two filtration forms, including a fiber filtration group (17) and an activated carbon filtration group (18). The filter section (6) is set up with a box structure. The fiber filter group (17) and the activated carbon filter group (18) are arranged alternately in the box structure. The box structure is provided with an inlet and an outlet.
8. The device for improving the operating quality of compressed air according to claim 7, characterized in that: An ionization chamber (19) is provided between the air inlet pipe of the pretreatment device (1) and the drying station (2). An ionization plate (20) is provided in the ionization chamber (19). The ionization plates (20) are spaced apart and have several through holes. Each through hole is provided with a pointed body (22).
9. The device for improving the operating quality of compressed air according to claim 8, characterized in that: The medium-pressure steam pipeline (4) in the plant area is connected to the heat exchanger (12). A water distribution and drainage chamber (21) is fixedly installed on the outlet pipeline of the cooling box (16). A valve is fixedly installed at the bottom of the water distribution and drainage chamber (21).