Air compressor unit

Abstract

The utility model provides a kind of air compressor unit, including the case with containing space and air compressor in containing space, containing space is formed with air inlet chamber, air compressor has suction port and air inlet chamber intercommunication, air inlet chamber has with the air intake filter mechanism of outside environment intercommunication, air intake filter mechanism includes the sealing door plate of the cavity mouth blockage of forming to air inlet chamber, at least two air inlets are formed on sealing door plate, each air inlet is equipped with air inlet filter assembly, and the inside of sealing door plate is also equipped with air inlet closure mechanism, air inlet closure mechanism can be in the inside of corresponding air inlet of plugging position when air inlet filter assembly is blocked, and filter piece in air inlet filter assembly can be disassembled via the outside of sealing door plate.The utility model does not need air compressor shutdown in maintenance process, eliminates the replacement of filter piece and leads to reduce equipment utilization, improves the production use effect of air compressor.

Description

Technical Field

[0001] This utility model belongs to the field of air compression equipment design technology, specifically relating to an air compressor unit. Background Technology

[0002] Centrifugal air compressors are widely used in industrial production for gas transportation. During use, the intake filter cotton needs to be maintained in a timely manner when it becomes clogged to ensure the air intake volume of the compressor. However, the intake filter structure of existing air compressors is mostly a fixed structure. When the filter cotton is clogged, the air compressor must be stopped before the clogged filter cotton (filter element) can be replaced. The long downtime of the filter cotton leads to low equipment utilization. According to calculations, the average downtime is 2-4 hours, and the equipment utilization rate drops by 30%, which seriously reduces the production and use efficiency of the air compressor. Utility Model Content

[0003] Therefore, this utility model provides an air compressor unit that can overcome the shortcomings of related technologies, such as the need to shut down the air compressor when the intake filter is blocked, which reduces the utilization rate of the equipment.

[0004] To address the aforementioned problems, this utility model provides an air compressor unit, including a chassis with a accommodating space and an air compressor located within the accommodating space. An air intake chamber is formed within the accommodating space, and the air compressor has an air intake port communicating with the air intake chamber. The air intake chamber has an air intake filter mechanism communicating with the external environment. The air intake filter mechanism includes a sealing door plate that forms a seal to block the opening of the air intake chamber. At least two air inlets are formed on the sealing door plate, and each air inlet is provided with an air intake filter assembly. Furthermore, an air vent closing mechanism is provided on the inner side of the sealing door plate. The air vent closing mechanism can block the inner side of the air inlet corresponding to the position when the air intake filter assembly is blocked, and the filter element in the air intake filter assembly can be installed and removed via the outer side of the sealing door plate.

[0005] In some embodiments, two adjacent air inlets share one air inlet closing mechanism, and when one of the air inlets is in a ventilated state, the other air inlet is in a blocked state cut off by the air inlet closing mechanism.

[0006] In some embodiments, the air vent closing mechanism includes a baffle and a first driving component that drives the baffle to move linearly between two adjacent air inlets. The first driving component is fixed to the sealing door panel, and the baffle is slidably connected to the inner wall surface of the sealing door panel.

[0007] In some embodiments, the air intake filter assembly further includes an outer frame, the inner enclosed area of ​​the outer frame forming an air intake channel, the filter element being located within the air intake channel, and the outer frame being at least partially embedded within the air intake.

[0008] In some embodiments, the outer frame is hinged to the sealing door panel so that the air intake filter assembly can be opened and closed in a flip-up manner.

[0009] In some embodiments, with reference to the orientation of the air intake filter assembly in its use state, an air intake guide assembly is also provided in the air intake channel, and the air intake guide assembly is located outside the filter element.

[0010] In some embodiments, the air intake guide assembly includes a plurality of parallel air intake guide vanes and a second drive component that drives each air intake guide vane to rotate by a target angle, and each air intake guide vane is rotatably supported on the outer frame by a pivot at both ends.

[0011] In some embodiments, the rotation of each of the air intake guide vanes within the same air intake guide assembly is driven synchronously by the same second drive component.

[0012] In some embodiments, the accommodating space is provided with a partition, the air intake chamber is formed by the partition, and the air intake port is formed on the partition; and / or, the air compressor is a centrifugal air compressor.

[0013] In some embodiments, a drain port is formed on the partition, and the drain port is connected to the heat dissipation structure of the drive motor of the air compressor.

[0014] The air compressor unit provided by this utility model has the following beneficial effects: An air inlet closing mechanism is installed on the inside of the air inlet on the sealing door panel. When the air intake filter mechanism on a certain air inlet becomes blocked, the air inlet can be blocked from the inside. The blocked air intake filter mechanism can be maintained online from the outside of the sealing door panel, i.e. the outside of the chassis, without damaging the air intake chamber. The maintenance process does not require the air compressor to be stopped, thus preventing the reduction of equipment utilization due to filter replacement and improving the production and use efficiency of the air compressor. Two adjacent air inlets share one air inlet closing mechanism, and when one of the air inlets is in a ventilated state, the other air inlet is in a blocked state cut off by the air inlet closing mechanism; The baffle is raised and lowered by the first driving component, and the baffle and the sealing door are slidably connected in the height direction, which makes its structural design more compact and reduces the resistance to the airflow. The air intake guide assembly can adjust the air intake angle, thereby adjusting the air intake volume to meet the different operating conditions of the air compressor. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. The drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0016] Figure 1 This is an external front view of the air compressor unit according to an embodiment of the present utility model. The baffle shown in the figure is in the middle position, that is, it does not block any air intake filter component. Figure 2 yes Figure 1 A schematic diagram of the state of the baffle in the air compressor unit after it has been slid a certain distance in the vertical direction, where the baffle on the left moves down and the baffle on the right moves up; Figure 3 Figure 1 A front view of the air compressor unit with the sealing door panel and its components hidden. Figure 4 yes Figure 1 A three-dimensional structural diagram of the air intake filter component in the middle; Figure 5 yes Figure 4 Exploded structural diagram; Figure 6 yes Figure 4 A schematic diagram of the structure of the air inlet guide vanes; Figure 7 yes Figure 4 A schematic diagram of the rotation angle (90°) of one of the air intake guide vanes.

[0017] The attached figures are labeled as follows: 1. Chassis; 10. Air intake chamber; 11. Partition; 111. Air outlet; 21. Air intake port; 31. Sealing door panel; 4. Air intake filter assembly; 41. Filter element; 42. Outer frame; 431. Air intake guide vane; 432. Rotating shaft; 51. Baffle; 6. Heat dissipation and exhaust channel; 7. Compressor exhaust pipe. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. 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 scope of protection of the present utility model.

[0019] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" 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. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0020] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90° or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0021] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0022] See also Figures 1 to 7As shown, according to an embodiment of the present invention, an air compressor unit is provided, including a casing 1 having a accommodating space (not shown in the figure) and an air compressor (not shown in the figure) located within the accommodating space. An air intake chamber 10 is formed within the accommodating space. The air compressor has an air intake port 21 communicating with the air intake chamber 10. The air intake chamber 10 has an air intake filter mechanism (not shown in the figure) communicating with the external environment. The air intake filter mechanism includes a sealing door plate 31 forming a seal that blocks the opening of the air intake chamber 10. At least two air inlets (not shown in the figure) are formed on the sealing door plate 31. Each air inlet is provided with an air intake filter assembly 4, and the inner side of the sealing door plate 31 is also provided with an air vent closing mechanism (not shown in the figure). The air vent closing mechanism can block the corresponding air intake position when the air intake filter assembly 4 is blocked. The filter element 41 inside the air inlet and the air intake filter assembly 4 can be installed and removed through the outer side of the sealing door 31. In specific applications, each of the aforementioned air intake filter mechanisms is equipped with a corresponding differential pressure detection component (e.g., differential pressure sensor) to detect whether the air intake filter mechanism is blocked in real time by detecting the differential pressure on both sides of the air inlet and outlet of the corresponding air intake filter mechanism. When the judgment result is that the air intake filter mechanism is blocked, a corresponding maintenance warning message (e.g., text message, audible and visual alarm, etc.) is issued to remind the operator to replace the filter element 41 of the blocked air intake filter mechanism in time. At the same time, the aforementioned air outlet closing mechanism seals the blocked air intake filter mechanism and controls the opening of another redundant air intake filter mechanism to be put into use simultaneously, so as to seamlessly filter the air intake of the air compressor.

[0023] In this technical solution, an air inlet closing mechanism is provided on the inside of the air inlet on the sealing door panel 31. When the air intake filter mechanism on a certain air inlet is blocked, the air inlet can be blocked from the inside. The blocked air intake filter mechanism can be maintained online from the outside of the sealing door panel 31, that is, the outside of the chassis 1, without damaging the air intake chamber 10. The maintenance process does not require the air compressor to be shut down, thus preventing the reduction of equipment utilization due to the replacement of filter element 41 and improving the production and use effect of the air compressor.

[0024] In one specific embodiment, the aforementioned air compressor is a centrifugal air compressor, preferably a two-stage centrifugal compressor, which is capable of having higher exhaust pressure.

[0025] In some embodiments, two adjacent air inlets share one air inlet closing mechanism, and when one of the air inlets is in a ventilated state, the other air inlet is in a blocked state cut off by the air inlet closing mechanism.

[0026] In this technical solution, two adjacent air inlets share the same air inlet closing mechanism, so that one of them is in a ventilation state (that is, the state of filtering and purifying the incoming air) while the other is in a blocked state (that is, the redundant state of the filter element 41 not being used), which can simplify the structural design and reduce the design and manufacturing costs.

[0027] See details Figure 1 and Figure 2 As shown, in a specific embodiment, the aforementioned sealing door panel 31 has two panels, which open and close to seal the opening of the aforementioned air intake chamber 10. Each sealing door panel 31 has two air inlets and a aforementioned air inlet closing mechanism along its height. The air inlet closing mechanism can be driven to move up and down between the upper and lower air inlets, thereby blocking one of the upper and lower air inlets while allowing ventilation in the other. Figure 1 and Figure 2 The air inlet closing mechanism is in an intermediate transition state between the two air inlets.

[0028] In some embodiments, the air vent closing mechanism includes a baffle 51 and a first driving component (not shown in the figure) that drives the baffle 51 to move linearly between two adjacent air inlets. The first driving component is fixed to the sealing door panel 31, and the baffle 51 is slidably connected to the inner wall surface of the sealing door panel 31. Specifically, a vertically guiding slide rail assembly is provided between the sealing door panel 31 and the baffle 51. The aforementioned slide rail assembly is arranged parallel to the left and right sides of the two upper and lower air inlets to realize the smooth lifting and sliding of the baffle 51. The aforementioned first driving component can be, for example, an electric push rod assembly in the prior art. Of course, under the condition that conditions permit, a cylinder, a hydraulic cylinder, or even a compound pulley group can also be used to realize the movement drive of the baffle 51.

[0029] In this technical solution, the baffle 51 is driven to rise and slide by the first driving component, and the baffle 51 and the sealing door 31 are slidably connected in the height direction, which makes its structural design more compact and reduces the resistance to the airflow.

[0030] In some embodiments, the air intake filter assembly 4 further includes an outer frame 42, the inner enclosed area of ​​the outer frame 42 forming an air intake channel (not indicated in the figure), the filter element 41 is located within the air intake channel, and the outer frame 42 is at least partially embedded in the air intake.

[0031] In this technical solution, an outer frame 42 is provided around the filter element 41. This not only provides a certain degree of protection for the filter element 41, but also serves as a carrier for multiple filter elements 41, improving the structural compactness and integrity of the filter element 41. In one illustrated embodiment, the aforementioned filter element 41 includes primary filter cotton and secondary filter cotton arranged front and back along the air intake direction.

[0032] In some embodiments, the outer frame 42 is hinged to the sealing door panel 31 so that the air inlet filter assembly 4 can be opened and closed in a flip-up manner. The aforementioned hinge can be implemented by a hinge. Specifically, the aforementioned hinge is arranged vertically at intervals along the height direction of the sealing door panel 31. At the same time, in order to ensure that the air inlet filter assembly can be reliably placed in the aforementioned air inlet, a corresponding locking component (not shown in the figure) can also be provided between the sealing door panel 31 and the outer frame 42.

[0033] In this technical solution, the hinge between the outer frame 42 and the sealing door panel 31 enables the air intake filter assembly 4 to be flipped open and closed, which further facilitates the operator to load and unload the filter element 41 from the air intake filter assembly 4.

[0034] In some embodiments, with reference to the orientation of the air intake filter assembly 4 in the use state, an air intake guide assembly (not shown in the figure) is also provided in the air intake channel. The air intake guide assembly is located outside the filter 41. The aforementioned air intake guide assembly can adjust the air intake angle of the air intake airflow, thereby adjusting the air intake air volume to meet the different operating conditions of the air compressor.

[0035] In some implementations, see reference Figures 4 to 7 As shown, the air intake guide assembly includes multiple parallel air intake guide vanes 431 and a second drive component (not shown in the figure) that drives each air intake guide vane 431 to rotate by a target angle. Each air intake guide vane 431 is rotatably supported on the outer frame 42 by the rotating shafts 432 at both ends. The air intake air volume of the entire air intake can be adjusted by the parallel air intake guide vanes 431, while also forming physical isolation protection for the filter element 41 located inside it.

[0036] In some embodiments, the rotation of each air inlet guide vane 431 within the same air inlet guide assembly is driven synchronously by the same second drive component. In this case, the aforementioned air inlet guide assembly is also equipped with a corresponding linkage rod (not shown in the figure). The second drive component can be, for example, a stepper motor. The stepper motor drives the aforementioned linkage rod to realize the synchronous rotation control and adjustment of each air inlet guide vane 431, further simplifying the structural design and reducing equipment costs.

[0037] In some embodiments, a partition 11 is provided in the accommodating space, the air intake chamber 10 is formed by the partition 11, and the air intake port 21 is formed on the partition 11. It is understood that the partition 11 isolates the entire air compressor outside the air intake chamber 10. The size of the partition 11 is roughly matched with the height and width of the chassis 1, so that the volume of the air intake chamber 10 is large enough to meet the air intake requirements of the air compressor.

[0038] In some embodiments, the partition 11 has a drain port 111, which is connected to the heat dissipation structure of the drive motor of the air compressor, thereby achieving efficient heat dissipation and cooling of the drive motor of the air compressor while ensuring the cleanliness of the internal space of the compressor.

[0039] See Figure 1 As shown, the aforementioned chassis 1 also has a heat dissipation airflow inlet (not shown in the figure). The heat dissipation airflow inlet is connected to the external environment and is located on the other side opposite to the air intake chamber 10. External air can enter the aforementioned accommodating space through the heat dissipation airflow inlet, and after air cooling the heat source components in the accommodating space, it is discharged through the heat dissipation exhaust channel 6 on the top of the chassis 1.

[0040] In one specific embodiment, when the pressure difference ΔP across the intake filter mechanism is detected to be greater than 1.5 kP, it indicates that the filter element 41 in the corresponding intake filter mechanism is blocked. At this time, the filter element 41 needs to be replaced. The aforementioned baffle 51 is controlled to slide to the position of the blocked intake filter mechanism to completely block it. The corresponding unblocked intake filter mechanism is then put into use, and the air intake of the air compressor is filtered and introduced by the intake filter mechanism. At this time, the operator opens the intake air filter assembly 4 on the outside of the casing 1 and replaces the filter element 41 inside with a new one. Then, the position of the intake air filter assembly 4 is restored. The replacement process of the filter element 41 does not require the air compressor to be stopped. In one specific embodiment, the replacement time is no more than 15 minutes (the traditional replacement method takes 2-4 hours), which is more time-saving and labor-saving.

[0041] The rotation angle of each air intake guide vane 431 in the aforementioned air intake guide assembly can be reasonably controlled to the corresponding target angle according to actual needs. In a specific application example, the angle of each air intake guide vane 431 can be adjusted to the corresponding target angle according to the actual operating conditions of the air compressor. For example, under high load conditions, each air intake guide vane 431 is fully open, that is, the target angle is 90°. At this time, the air intake flow is the largest, the air intake loss is the smallest, and the air intake efficiency loss is also the smallest. Under medium load conditions, it is 60°, and under low load conditions, it is 45°, as shown in the table below.

[0042]

[0043] By using louvered air intake throttling, the flow rate of fixed frequency units can be adjusted at low cost, meeting 30%-80% of the flow rate requirement without the need for a frequency converter. This reduces the retrofit cost by 65%, providing an economical and efficient solution for the industry.

[0044] It will be readily understood by those skilled in the art that, without conflict, the advantageous technical features of the above-mentioned methods can be freely combined and superimposed.

[0045] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. An air compressor unit, characterized in that, The system includes a chassis (1) with a accommodating space and an air compressor located within the accommodating space. An air intake chamber (10) is formed within the accommodating space. The air intake port (21) of the air compressor is connected to the air intake chamber (10). The air intake chamber (10) has an air intake filter mechanism that communicates with the external environment. The air intake filter mechanism includes a sealing door plate (31) that forms a seal to block the opening of the air intake chamber (10). At least two air inlets are formed on the sealing door plate (31). Each air inlet is provided with an air intake filter assembly (4). An air vent closing mechanism is also provided on the inner side of the sealing door plate (31). The air vent closing mechanism can block the inner side of the air inlet corresponding to the position when the air intake filter assembly (4) is blocked. The filter element (41) in the air intake filter assembly (4) can be installed and removed through the outer side of the sealing door plate (31).

2. The air compressor unit according to claim 1, characterized in that, Two adjacent air inlets share one air inlet closing mechanism, and when one of the air inlets is in a ventilated state, the other air inlet is in a blocked state cut off by the air inlet closing mechanism.

3. The air compressor unit according to claim 2, characterized in that, The air vent closing mechanism includes a baffle (51) and a first driving component that drives the baffle (51) to move linearly between two adjacent air inlets. The first driving component is fixed to the sealing door plate (31), and the baffle (51) is slidably connected to the inner wall surface of the sealing door plate (31).

4. The air compressor unit according to claim 1, characterized in that, The air intake filter assembly (4) also includes an outer frame (42), the inner enclosed area of ​​the outer frame (42) forms an air intake channel, the filter element (41) is located in the air intake channel, and the outer frame (42) is at least partially embedded in the air intake.

5. The air compressor unit according to claim 4, characterized in that, The outer frame (42) is hinged to the sealing door panel (31) so that the air intake filter assembly (4) can be opened and closed in a flip-up manner.

6. The air compressor unit according to claim 4 or 5, characterized in that, With reference to the orientation of the air intake filter assembly (4) in the use state, an air intake guide assembly is also provided in the air intake channel, and the air intake guide assembly is located outside the filter element (41).

7. The air compressor unit according to claim 6, characterized in that, The air intake guide assembly includes a plurality of parallel air intake guide vanes (431) and a second drive component that drives each air intake guide vane (431) to rotate by a target angle. Each air intake guide vane (431) is rotatably supported on the outer frame (42) through the rotating shafts (432) at both ends.

8. The air compressor unit according to claim 7, characterized in that, The rotation of each of the air inlet guide vanes (431) within the same air inlet guide assembly is driven synchronously by the same second drive component.

9. The air compressor unit according to claim 1, characterized in that, The accommodating space is provided with a partition (11), the air inlet chamber (10) is formed by the partition (11), the air intake port (21) is formed on the partition (11); and / or, the air compressor is a centrifugal air compressor.

10. The air compressor unit according to claim 9, characterized in that, A drain port (111) is formed on the partition (11), and the drain port (111) is connected to the heat dissipation structure of the drive motor of the air compressor.

Images