Air pretreatment device of gas compressor group

Abstract

The utility model relates to air source treatment of an air compressor group, in particular to an air pretreatment device of a gas compressor group. The burden of a filter of the air compressor can be relieved, the loss of filtering consumables of a single air compressor is reduced, and meanwhile the filtering efficiency is improved. Comprising a filter box; a ventilation hood I is arranged on one side of the filter box, and the other side of the filter box is communicated with an air outlet header pipe; the air outlet main pipe is provided with a plurality of connectors used for being communicated with air inlets of the compressors in the length direction, and each connector corresponds to one compressor. The filter box is internally divided into a left space and a right space through a partition plate, and a water filtering unit and a dust removing unit are further arranged in the filter box; wherein the water filtering unit comprises a water filtering net, and the dust removing unit comprises a dust filtering net; the water filtering unit and the dust removing unit are each provided with a linear moving mechanism used for driving the water filtering net or the dust filtering net to move between the two spaces. Air enters from the first ventilation hood, sequentially passes through the water filtering unit, the dust removal unit and the air outlet main pipe and then is conveyed to the corresponding compressors.

Description

Technical Field

[0001] The utility model relates to the air source treatment of an air compressor group, and particularly to an air pretreatment device for a gas compressor group. Background Art

[0002] An air compressor is a mechanical device that can compress and store the air in the atmosphere for subsequent use. In the industrial field, especially in iron and steel smelting production, compressed air is an indispensable energy source. During the iron and steel smelting process, compressed air has a wide range of applications, not only providing power for pneumatic equipment but also being used in key links such as cooling and dust removal of metallurgical equipment. Therefore, stable compressed air pressure is crucial for ensuring the smooth progress of production and product quality. In actual production, multiple air compressor units usually operate together. If the air source provided by any one air compressor is unstable, it may affect the stability of the entire gas supply system, and then cause malfunction or abnormal operation of the gas-using equipment.

[0003] Under long-term continuous operation, the built-in filtration system of the air compressor will gradually lose its effective filtering ability for impurities in the air. If these filtration devices are not replaced in time, it will cause problems such as poor air intake or even blockage, seriously affecting the air supply stability and working efficiency of the air compressor. Especially for the production workshops of steel mills with relatively harsh environments and a large amount of dust, the self-provided filtration systems of air compressor units are prone to frequent blockages and need to be replaced regularly, which not only increases the maintenance cost but also consumes a large amount of manpower and material resources. Summary of the Invention

[0004] The utility model aims at the defects existing in the prior art and provides an air pretreatment device for a gas compressor group. It is an air pretreatment device, and its purpose is to perform dehumidification and dust removal pretreatment on the air before it enters the built-in filtration system of the air compressor group. It can reduce the burden on the built-in filter of the air compressor, reduce the loss of filtration consumables of a single air compressor, and improve the filtration efficiency at the same time.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions. The air pretreatment device for a gas compressor group includes a filter box; a ventilation hood one is arranged on one side of the filter box, and the other side of the filter box is connected to an air outlet main pipe; a plurality of interfaces for connecting to the air inlet of the compressor are arranged along the length direction of the air outlet main pipe, and each interface corresponds to a compressor.

[0006] The interior of the filter box is divided into left and right spaces by a partition board. A water filtration unit and a dust removal unit are also arranged in the filter box; among them, the water filtration unit includes a water filtration net, and the dust removal unit includes a dust filtration net; and both the water filtration unit and the dust removal unit are provided with linear movement mechanisms for driving the water filtration net or the dust filtration net to move between the two spaces.

[0007] Once the air enters from the ventilation hood one, it passes through the water filtration unit, the dust removal unit, and the main outlet pipe in sequence, and then is transported to the corresponding compressor, or air compressor.

[0008] Further, the ventilation hood one and the main outlet pipe correspond to the same space. The ventilation hood one is located on one side of the space, and the main outlet pipe is located on the other side of the space. This space is one of the left space or the right space. And there are two pressure sensors arranged in the space where the main outlet pipe is located: the first pressure sensor and the second pressure sensor.

[0009] Further, the first pressure sensor is located between the main outlet pipe and the dust removal unit; the second pressure sensor is located between the dust removal unit and the water filtration unit.

[0010] Further, two track holes are opened at the top of the filter box: the first track hole and the second track hole. The linear movement mechanism of the dust removal unit includes two mutually parallel guide rods one. Among them, one guide rod one is arranged on each side of the first track hole, and a slide plate one is slidably connected to the two guide rods one. A linear cylinder one is arranged at the top of the filter box and on one side of one of the guide rods one. The cylinder rod of the linear cylinder one is detachably connected to the slide plate one, driving the slide plate one to move back and forth along the guide rod one. The two guide rods one, the slide plate one, and the linear cylinder one together constitute the linear movement mechanism.

[0011] Further, the linear movement mechanism of the water filtration unit includes two mutually parallel guide rods two. Among them, one guide rod two is arranged on each side of the second track hole, and a slide plate two is slidably connected to the two guide rods two. A linear cylinder two is arranged at the top of the filter box and on one side of one of the guide rods two. The cylinder rod of the linear cylinder two is detachably connected to the slide plate two, driving the slide plate two to move back and forth along the guide rod two. The two guide rods two, the slide plate two, and the linear cylinder two together constitute the linear movement mechanism.

[0012] Further, the dust removal unit further includes a dust net housing. The dust filter net is installed on the dust net housing. The top of the dust net housing is connected to the bottom of the slide plate one, and both the dust net housing and the dust filter net are located inside the filter box.

[0013] Further, a brush for cleaning the accumulated ash on the dust filter net is arranged in the space not connected to the main outlet pipe, and the brush is driven to rotate by a rotary motor.

[0014] Further, the water filtration unit further includes a water net housing, which is used to support the water filter net. The top of the water net housing is connected to the bottom of the slide plate two, and both the water net housing and the water filter net are located inside the filter box.

[0015] Further, a fan and a heating resistor are arranged in the space not connected to the main outlet pipe, which are used to generate hot air to dry the water filter net.

[0016] The beneficial effects of the present utility model compared with the prior art.

[0017] The air pretreatment device for a gas compressor group of the present utility model adopts a centralized air pretreatment and filtration management method by adding a filtration device to the air inlet of the air compressor group, which can realize the pretreatment of the air entering the air compressor and automatic pressure detection, effectively ensuring the air quality of the air inlet of the air compressor group and the smooth operation of the compressor group.

[0018] The present utility model adopts a centralized filtration and automatic cleaning filtration system to realize unmanned operation, avoiding untimely personnel operation and the harm of the noise of the air compressor to the human body. At the same time, it can reduce the consumption of consumables of the filtration system of a single air compressor. Brief Description of the Drawings

[0019] The following further describes the present utility model in conjunction with the drawings and specific embodiments. The protection scope of the present utility model is not limited to the description of the following content.

[0020] Figure 1 is a three-dimensional view of an air pretreatment device for a gas compressor group in an embodiment Figure 1 .

[0021] Figure 2 is a three-dimensional view of an air pretreatment device for a gas compressor group in an embodiment Figure 2 .

[0022] Figure 3 is a three-dimensional view of the filter water net on the top view of an air pretreatment device for a gas compressor group in an embodiment.

[0023] Figure 4 is a three-dimensional view of the dust filter net of an air pretreatment device for a gas compressor group in an embodiment.

[0024] Figure 5 is a sectional view of an air pretreatment device for a gas compressor group in an embodiment.

[0025] In the figure, 1. Filter box; 2. Water collection tank; 3. Dust collection box; 4. Ventilation hood 1; 5. Outlet main pipe; 6. Plug; 7. Dust removal unit; 8. Water filtration unit; 9. Rotating motor; 10. Brush; 11. Fan; 12. Heating resistor; 13. Chamber 1; 14. Chamber 2; 15. Channel 1; 16. Partition; 17. First pressure sensor; 18. No. 1 air compressor; 19. No. 2 air compressor; 20. No. 3 air compressor; 21. No. 4 air compressor; 22. No. 5 air compressor; 23. Chamber 3; 24. Ventilation hood 2; 25. Second pressure sensor; 26. Vertical plate; 701. Cylinder 1; 702. Guide rod 1; 703. Cover 1; 704. Slide plate 1; 705. Dust filter net; 706. Dust net housing; 801. Slide plate 2; 802. Cylinder 2; 803. Cover 2; 804. Guide rod 2; 805. Water filter net; 806. Water net housing. Detailed implementation mode

[0026] To make the objectives, technical solutions and beneficial effects of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model.

[0027] As Figures 1-5 shown, the air pretreatment device for a gas compressor group includes a filter box 1; a ventilation hood 1 is provided on one side of the filter box 1, and the other side of the filter box 1 is communicated with an outlet main pipe 5; a plurality of interfaces for communicating with the compressor air inlet are arranged along the length direction of the outlet main pipe 5, and each interface corresponds to a compressor. The filter box 1 is partitioned into left and right spaces by a partition, and a water filtering unit 8 and a dust removing unit 7 are further arranged in the filter box 1; wherein, the water filtering unit 8 includes a water filtering net 805, and the dust removing unit 7 includes a dust filtering net 705; and both the water filtering unit 8 and the dust removing unit 7 are provided with a linear moving mechanism for driving the water filtering net 805 or the dust filtering net 705 to move between the two spaces. Air enters from the ventilation hood 1 and is sequentially conveyed to the corresponding compressor, or air compressor, after passing through the water filtering unit 8, the dust removing unit 7, and the outlet main pipe 5.

[0028] Embodiment 1: The ventilation hood 1 and the outlet main pipe 5 correspond to the same space. The ventilation hood 1 is located on one side of the space, and the outlet main pipe 5 is located on the other side of the space. This space is one of the left space or the right space. Such a design ensures the shortest air flow path, reduces energy loss, and improves air treatment efficiency.

[0029] Example 2: There are two pressure sensors in the space where the main air outlet pipe 5 is located: the first pressure sensor 17 and the second pressure sensor. The first pressure sensor 17 is located between the main air outlet pipe 5 and the dust removal unit 8; the second pressure sensor is located between the dust removal unit 7 and the water filtration unit 8. Among them, the second pressure sensor can capture the pressure drop generated after the air passes through the water filtration unit. The first pressure sensor can capture the pressure drop generated after the air passes through the dust removal unit. First pressure sensor 17: If the pressure drop shown by the first pressure sensor is significantly higher than the reference value, while the reading of the second pressure sensor is relatively stable, this indicates that too much dust has accumulated inside the dust removal unit 7, resulting in an increase in the flow resistance. If the pressure drop shown by the first pressure sensor is significantly lower than the reference value, it may be that there is a leak in the main air outlet pipe 5 or other downstream problems. Second pressure sensor 25: If the pressure drop shown by the second pressure sensor is significantly higher than the reference value, while the reading of the first pressure sensor is relatively stable, this may indicate that there is water accumulation or impurity blockage inside the water filtration unit 8, increasing the flow resistance. If the pressure drop shown by the second pressure sensor is significantly lower than the reference value, it may be that there is a leak upstream of the ventilation hood 1 or the water filtration unit 8. According to the above analysis, it can be determined whether there is a problem with the water filtration unit or the dust removal unit, or both at the same time. That is: Calculate the pressure difference ΔP between the first pressure sensor 17 and the second pressure sensor. If ΔP increases significantly, it means that too much dust has accumulated inside the dust removal unit 7, increasing the resistance to passing through the dust removal unit and causing the first pressure sensor to show a higher pressure drop. If ΔP remains stable or decreases instead, and the first pressure sensor still shows an abnormal pressure drop, then the problem may lie in the water filtration unit 8, because this means that the air has encountered a greater resistance before entering the dust removal unit.

[0030] Preferably, two track holes are opened at the top of the filter box 1: the first track hole and the second track hole; the linear movement mechanism of the dust removal unit 7 includes two mutually parallel guide rods 702. Among them, one guide rod 702 is arranged on each side of the first track hole, and a slide plate 704 is slidably connected to the two guide rods 702; on the top of the filter box and on one side of one of the guide rods 702, a linear cylinder 701 is arranged. The cylinder rod of the linear cylinder 701 is detachably connected to the slide plate 704, driving the slide plate 704 to move back and forth along the guide rod 702; the two guide rods 702, the slide plate 704, and the linear cylinder 701 together constitute the linear movement mechanism.

[0031] Preferably, the linear movement mechanism of the water filtering unit 8 includes two guide rods II 804 that are parallel to each other. Among them, one guide rod II 804 is arranged on each side of the second track hole, and a second slide plate 801 is slidably connected to the two guide rods II 804; on the top of the filter box and on one side of one of the guide rods II 804, a linear cylinder II 802 is provided, and the cylinder rod of the linear cylinder II 802 is detachably connected to the second slide plate 801 to drive the second slide plate 801 to move back and forth along the guide rod II 804; the two guide rods II 804, the second slide plate 801, and the linear cylinder II 802 together constitute the linear movement mechanism.

[0032] Preferably, the dust removal unit 7 further includes a dust net housing 706, the dust filtering net 705 is installed on the dust net housing 706, the top of the dust net housing 706 is connected to the bottom of the first slide plate 704, and both the dust net housing 706 and the dust filtering net 705 are located inside the filter box 1. In the space not connected to the main air outlet pipe (that is, the space not corresponding to the main air outlet pipe), a brush 10 for cleaning the accumulated dust on the dust filtering net 705 is provided, and the brush 10 is driven to rotate by a rotating motor 9. This design can regularly clean the dust on the dust filtering net without affecting the normal operation, extend its service life, and maintain high filtration performance.

[0033] Preferably, the water filtering unit 8 further includes a water net housing 806, which is used to support the water filtering net 805. The top of the water net housing 806 is connected to the bottom of the second slide plate 801, and both the water net housing 806 and the water filtering net 805 are located inside the filter box 1. In the space not connected to the main air outlet pipe, a fan 11 and a heating resistor 12 are provided to generate hot air to dry the water filtering net. This helps to quickly dry the water filtering net, avoid the growth of bacteria caused by a humid environment, and at the same time ensure the continuous and efficient operation of the air pretreatment device, providing dry and clean air for the compressor. A vertical plate is provided between the partition plate 16 and the inner wall of the filter box for installing the rotating motor 9 and the fan 11.

[0034] In Embodiment 3, openings are provided on the slide plates of the dust removal unit and the water filtering unit, covers for the holes are provided at the tops of the connected water net housing and dust net housing, and the dust filtering net and the water filtering net are detachably installed on the corresponding housings. In this way, after opening the cover, it is convenient to disassemble. After removing the old filter net and installing a new filter net and then resealing, the replacement process can be completed.

[0035] Embodiment 4: Legs, a water collection tank 2, and a dust collection tank 3 are provided at the bottom of the filter box. Among them, the water collection tank 2 is used to collect the excess water discharged by the water filtration unit; the dust collection tank 3 is used to collect the dust cleaned by the dust removal unit. In addition, a second ventilation hood 24 is provided on the side wall of the filter box and at the end of the main air outlet pipe 5. A plug 6 is provided outside the second ventilation hood 24, and the end of the main air outlet pipe 5 passes through the plug 6 and is connected to the filter box. The working states of the dust removal unit 7 and the water filtration unit 8 are judged by monitoring the pressure magnitude; if the pressure value is abnormal, it indicates that the dust removal unit or the water filtration unit needs to be cleaned or the filter element needs to be replaced. When cleaning is required, the air cylinder 1 pushes the sliding plate 1 to move along the guide rod 1 to the dust removal position. At this position, a rotating motor drives a brush to rotate to clean the dust accumulated on both sides of the dust filter net, and the dust is collected into the dust collection tank 3. When the cleaning operation is performed, the air cylinder 2 drives the sliding plate 2 to move along the guide rod 2 to the water removal position. At this time, a hot air is generated by a fan cooperating with a heating resistor to dry the water filter net, and at the same time, the water is guided into the water collection tank 2.

[0036] The use process and working principle of the present utility model are described in combination with the accompanying drawings and technical solutions:

[0037] 1. Each air intake of the compressors in the compressor group is connected to an interface provided on the corresponding outgoing main pipe. Ensure that all the air entering the compressors is supplied through the outgoing main pipe.

[0038] 2. The air in the main air outlet pipe enters from the right through the first channel and passes through the water filtration unit in the second chamber, then passes through the dust removal unit in the first chamber and reaches the third chamber, and then enters the main air outlet pipe and is transported to the corresponding air compressor interface.

[0039] 3. A pressure sensor is installed on the inner wall of the third chamber to monitor the air pressure value (vacuum degree) in the third chamber in real time. Whether the dust removal unit and the water filtration unit filter smoothly is judged by monitoring the pressure magnitude in the third chamber. Whether the dust removal unit and the water filtration unit need to be cleaned or the corresponding filter nets need to be replaced.

[0040] 4. Cleaning process of the dust removal unit: When it is necessary to clean the dust accumulated in the dust removal unit, the first air cylinder pushes the first sliding plate, and the first sliding plate moves from the working position (above the first chamber) to the dust removal position (below the first chamber) under the guiding action of the first guide rod. The dust net housing moves together with the first sliding plate. Rotating motors are provided on both sides of the outer filter net at the dust removal position to drive the brushes to rotate. The front ends of the brushes contact both sides of the filter net, and the dust on both sides of the dust filter net is cleaned off by the rotation of the brushes and falls into the dust collection tank.

[0041] 5. Cleaning process of the water filtration unit: When it is necessary to clean the water and moisture in the water filtration unit, the second cylinder pushes the second slide plate. Under the guiding action of the second guide rod, the second slide plate moves from the working position (above chamber two) to the water removal position (below chamber two), and the water network housing moves together with the second slide plate. A fan and a heating resistor are arranged on one side of the water filtration net at the cleaning water and moisture position. At this time, the heating resistor is powered on, and then the fan is controlled to rotate. The air blown out by the fan becomes hot air after passing through the heating resistor. The hot air passes through the water filtration net and takes away the water and moisture on the water filtration net and flows out from the corresponding ventilation hood into the air. After working for a period of time, the drying of the water filtration net can be realized. The excess water on the water filtration net flows into the water collection tank.

[0042] 6. When the corresponding filter screen needs to be replaced, just open the corresponding cover, take out the corresponding filter screen, and then cover the cover to complete the replacement of the filter screen.

[0043] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; thus, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope defined by the claims of the present invention.

Claims

1. An air pretreatment device for a gas compressor group, comprising a filter box (1); characterized in that, On one side of the filtration box (1), there is a ventilation hood one (4), and on the other side of the filtration box (1), it is connected to an air outlet main pipe (5); the air outlet main pipe (5) is provided with a plurality of interfaces for connecting to the compressor air inlet along its length direction, and each interface corresponds to a compressor; The interior of the filtration box (1) is divided into left and right spaces by a partition board. A water filtration unit (8) and a dust removal unit (7) are also arranged inside the filtration box (1); among them, the water filtration unit (8) includes a water filtration net (805), and the dust removal unit (7) includes a dust filtration net (705); and both the water filtration unit (8) and the dust removal unit (7) are provided with linear movement mechanisms for driving the water filtration net (805) or the dust filtration net (705) to move between the two spaces; Air enters from the ventilation hood one (4) and is conveyed to the corresponding compressor after passing through the water filtration unit (8), the dust removal unit (7), and the air outlet main pipe (5) in sequence.

2. The air pretreatment device for a gas compressor group according to claim 1, characterized in that: The ventilation hood one (4) and the air outlet main pipe (5) correspond to the same space. The ventilation hood one (4) is located on one side of this space, and the air outlet main pipe (5) is located on the other side of this space; this space is one of the left space or the right space; and two pressure sensors are arranged in the space where the air outlet main pipe (5) is located: a first pressure sensor and a second pressure sensor.

3. The air pretreatment device for a gas compressor group according to claim 2, characterized in that: The first pressure sensor (17) is located between the air outlet main pipe (5) and the dust removal unit (7); the second pressure sensor is located between the dust removal unit (7) and the water filtration unit (8).

4. The air pretreatment device for a gas compressor group according to any one of claims 1-3, characterized in that: Two track holes are opened at the top of the filtration box (1): a first track hole and a second track hole; the linear movement mechanism of the dust removal unit (7) includes two mutually parallel guide rods one (702). Among them, one guide rod one (702) is arranged on each side of the first track hole, and a slide plate one (704) is slidably connected to the two guide rods one (702); on the top of the filtration box and on one side of one of the guide rods one (702), there is a linear cylinder one (701). The cylinder rod of the linear cylinder one (701) is detachably connected to the slide plate one (704) to drive the slide plate one (704) to move back and forth along the guide rod one (702); the two guide rods one (702), the slide plate one (704), and the linear cylinder one (701) together constitute the linear movement mechanism.

5. The air pretreatment device for a gas compressor group according to claim 4, wherein: The linear movement mechanism of the water filtration unit (8) includes two mutually parallel guide rods two (804). Among them, one guide rod two (804) is arranged on each side of the second track hole, and a slide plate two (801) is slidably connected to the two guide rods two (804); on the top of the filtration box and on one side of one of the guide rods two (804), there is a linear cylinder two (802). The cylinder rod of the linear cylinder two (802) is detachably connected to the slide plate two (801) to drive the slide plate two (801) to move back and forth along the guide rod two (804); the two guide rods two (804), the slide plate two (801), and the linear cylinder two (802) together constitute the linear movement mechanism.

6. The air pretreatment device for a gas compressor group according to claim 4, characterized in that: The dust removal unit (7) further includes a dust screen housing (706), a dust filter screen (705) is installed on the dust screen housing (706), the top of the dust screen housing (706) is connected to the bottom of the first slide plate (704), and both the dust screen housing (706) and the dust filter screen (705) are located inside the filter box (1).

7. The air pretreatment device for a gas compressor group according to claim 6, wherein: A brush (10) for cleaning the accumulated dust on the dust filter screen (705) is provided in the space not connected to the main exhaust pipe, and the brush (10) is driven to rotate by a rotating motor (9).

8. The air pretreatment device for a gas compressor group according to claim 5, characterized in that: The water filtration unit (8) further includes a water screen housing (806), which is used to support the water filter screen (805), the top of the water screen housing (806) is connected to the bottom of the second slide plate (801), and both the water screen housing (806) and the water filter screen (805) are located inside the filter box (1).

9. The air pretreatment device for a gas compressor group according to claim 8, wherein: A fan (11) and a heating resistor (12) are provided in the space not connected to the main exhaust pipe (5) for generating hot air to dry the water filter screen.

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