Fresh air filter for setting machine

Abstract

The utility model discloses a fresh air filter used on a setting machine, which comprises a heat exchange system of the setting machine, and is characterized in that the filter is arranged at the front end of a fresh air inlet of the heat exchange system, the filter is provided with a shell, one surface wall of the shell is provided with an air inlet, and the other surface wall adjacent to the shell is provided with an air outlet; a filter cartridge is arranged in the shell, one end of the filter cartridge is an open end, and the filter cartridge is rotationally and hermetically connected with the shell at the air outlet; the other end of the filter cartridge is a closed end and is rotationally connected with the surface wall opposite to the air outlet of the shell; a collecting opening is formed in the other surface wall of the shell, the collecting opening is in a long strip shape and is parallel to the axial direction of the filter cartridge, and a dust collecting bag is mounted at the collecting opening; an air blowing pipe parallel to the axial direction of the filter cartridge is arranged in the filter cartridge, a plurality of air outlet holes are formed in the air blowing pipe, and the air outlet holes face the collecting opening. The fresh air filter is used for filtering fresh air, the filter cartridge can be cleaned on line at any time, shutdown and production halt are not needed, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of filters, and particularly relates to a fresh air filter used on a setting machine. Background Art

[0002] In the textile industry, stentering machines are often used to shape textiles such as cloth. However, during the stentering process, hot air with a temperature of about 200°C is generally required in the stentering machine. At the same time, it also discharges hot and humid exhaust gas with a temperature of up to 150-200°C. If this high-temperature, hot and humid exhaust gas is discharged directly, it will not only cause environmental pollution, but also cause a huge waste of resources. Therefore, in order to recover the high-temperature, hot and humid gas, existing stentering machines are generally equipped with a heat exchange system to recover heat energy. However, during the existing stenting process, from the time the fresh air enters the heat exchange system to the time it enters the stentering machine, almost all stentering equipment is not equipped with a filter. Instead, a simple filtration is performed by fixing the filter disc with a neck flange at the fresh air inlet and outlet. This filtering method is prone to reduce the filtering effect or cause clogging of the filter disc when working for a long time. It is troublesome to replace or clean the filter disc, and it is necessary to stop the machine and production, which reduces production efficiency. Utility Model Content

[0003] The purpose of the utility model is to provide a fresh air filter for a setting machine, so as to solve the problem that the fresh air filter structure of the existing setting machine is unreasonable in design and reduces production efficiency.

[0004] In order to achieve the above technical effects, the technical solution adopted by the utility model is:

[0005] A fresh air filter for a stentering machine includes a heat exchange system for the stentering machine, characterized in that the filter is installed at the front end of the fresh air inlet of the heat exchange system, the filter is provided with a shell, one surface wall of the shell is provided with an air inlet, and the other surface wall adjacent to it is provided with an air outlet; a filter cartridge is provided inside the shell, one end of the filter cartridge is an open end, which is rotatably and sealedly connected to the shell at the air outlet; the other end of the filter cartridge is a closed end, which is rotatably connected to the surface wall of the shell opposite to the air outlet; the shell also has a surface wall provided with a collecting port, the collecting port is long and strip-shaped, which is parallel to the axial direction of the filter cartridge, and a dust bag is installed at the collecting port; an air blowing pipe parallel to the axial direction of the filter cartridge is provided inside the filter cartridge, the air blowing pipe is provided with a plurality of air outlet holes, and the air outlet holes face the collecting port.

[0006] Furthermore, the shell is sealed and welded with a neck flange at the air outlet, and the open end of the filter cartridge is rotatably and sealedly connected to the neck flange.

[0007] Furthermore, a connecting hole is provided on the side wall of the neck flange, and the outer end of the blowing pipe is fixedly installed at the connecting hole through a bent joint.

[0008] Furthermore, a support rod is welded to the inner side of the inner side wall of the neck flange, and the other end of the support rod is fixedly connected to the inner end of the blowing pipe.

[0009] Furthermore, there are 2-5 support rods, one end of all the support rods is welded to form an integral support on the inner end of the blowing pipe, and the other end is spread and welded on the inner wall of the neck flange.

[0010] Furthermore, a protective cover is installed on the outside of the collection port of the shell, and the dust collecting bag is located in the protective cover.

[0011] Furthermore, the collection port is provided with a snap-fit ​​joint, and the dust bag is sealed and snap-fitted to the snap-fit ​​joint through its snap plate.

[0012] Furthermore, the protective cover is provided with a take-in / take-out opening, and the take-in / take-out opening is provided with a sealing door.

[0013] Furthermore, the protective cover or the filter cartridge housing is provided with an exhaust hole at the lower end of the dust bag.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The utility model discloses that fresh air filter is installed at the front end of the fresh air inlet of the heat exchange system of the setting machine, a filter cartridge is arranged in the fresh air filter, a collection port is opened on the outer wall of the filter and the dust collecting bag is connected, and a blowing pipe is arranged in the filter cartridge. After a certain period of use, high-pressure gas is blown through the filter screen on the outer wall of the filter cartridge through the blowing pipe, and the dirt accumulated or blocked in the filter screen mesh is blown toward the dust collecting bag by the high-pressure gas. The dust collecting bag can be replaced regularly, so the utility model can clean the filter cartridge online at any time without stopping the machine or production, thereby ensuring the cleaning and filtering effect of the filter cartridge, improving production efficiency and reducing costs.

[0016] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the front view of the filter of the utility model.

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model in one direction without the protective cover.

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the utility model without the protective cover in another direction.

[0020] The numbers and corresponding names in the figure are:

[0021] 1. Housing, 11. Air inlet, 12. Air outlet,

[0022] 13. Collection port, 14. Access port, 15. Snap-on connector,

[0023] 2. Neck flange, 21. Connection hole, 3. Dust bag,

[0024] 4. Protective cover, 5. Filter cartridge, 6. Air blowpipe,

[0025] 7. Support rod. DETAILED DESCRIPTION

[0026] A fresh air filter for a setting machine, which is installed at the front end of the fresh air inlet of the heat exchange system of the setting machine and is used for fresh air filtering. Figure 1-3 As shown, the filter comprises a housing 1, a neck flange 2, a dust bag 3, a protective cover 4, a filter cartridge 5, an air blow pipe 6 and a support frame.

[0027] An air inlet 11 is provided on one surface wall of the shell 1, an air outlet 12 is provided on another surface wall adjacent thereto, and a collecting port 13 is provided on a third surface wall adjacent to the air outlet 12 and adjacent to or opposite to the air inlet 11. A neck flange 2 is seal-welded to the shell 1 at the air outlet 12 and is used to connect the fresh air inlet of the heat exchange system through a pipe. The collecting port 13 is in the shape of an elongated strip and is parallel to the axial direction of the filter cartridge 5. A snap-fit ​​joint 15 is provided on the outside of the shell 1 at the collecting port 13, and the dust bag 3 is seal-fitted to the snap-fit ​​joint 15 via its clamping plate. The protective cover 4 is installed at the collecting port 13 on the outside of the shell 1. The protective cover 4 is provided with a take-in / take-out port 14 at the connection between the snap-fit ​​joint 15 and the dust bag 3, and a sealing door that is swiveled to open is provided at the take-in / take-out port 14. The protective cover 4 is used to cover and protect the dust bag 3, and the sealing door is used to install or remove the dust bag 3 after being swiveled open. The protective cover 4 or the filter cartridge 5 near the lower end of the dust bag 3 is provided with exhaust holes on its surface. The exhaust holes can be densely packed small holes to facilitate the discharge of gas from the protective cover when the dust bag is collecting dust. Preferably, the collection port 13 and the air inlet 11 are arranged on two opposite surface walls of the housing 1. The filter cartridge 5 is arranged inside the housing 1. It is a cylindrical structure, including a skeleton and a filter screen sleeved on the outside of the skeleton. One end of the filter cartridge 5 is an open end, and the other end is a closed end. The open end of the filter cartridge 5 is rotatably and sealedly connected to the housing 1 at the air outlet 12. Specifically, the open end of the filter cartridge 5 is rotatably and sealedly connected to the neck flange 2 welded at the air outlet 12 of the housing 1. The closed end of the filter cartridge 5 is rotatably connected to the surface wall of the housing 1 opposite to the air outlet 12. Specifically, it is connected to the output end of the motor (not shown in the figure) that drives the filter cartridge 5 to rotate after an axial line passes through the surface wall.

[0028] The air blowing pipe 6 is arranged inside the filter cartridge 5 and near the collection port 13. The air blowing pipe 6 is parallel to the axis of the filter cartridge 5 and has multiple air outlet holes, which face the collection port 13. A connecting hole is opened on the side wall of the neck flange 2, and the outer end of the air blowing pipe 6 is fixed to the connecting hole 21 through an elbow joint.

[0029] The support frame is mounted on the inner wall of the neck flange 2 and is composed of 2-5 support rods 7. Specifically, one end of all the support rods 7 constituting the support frame is welded together and fixedly connected to the inner end of the blowing pipe 6, and the other end is spread and welded on the inner wall of the neck flange 2.

[0030] In this embodiment, it should be noted that the housing 1 can be a rectangular or cube-shaped housing 1 structure, or a cylindrical housing 1 structure. When the housing 1 is cylindrical, the adjacent or opposing surface walls on the cylindrical surface can be understood as the adjacent or opposing arcuate walls formed by inscribing a square in the cross-sectional circle of the housing 1, as viewed from the cross-section of the housing 1. The outer diameter of the filter cartridge 5 is slightly smaller than the width of the housing 1 in a rectangular or cube-shaped housing 1 structure, or the inner diameter of the housing 1 in a cylindrical housing 1 structure.

[0031] When the utility model is in use, the fresh air inlet of the heat exchange system of the molding machine is connected through the neck flange at the air outlet, the fresh air enters the air inlet, is filtered by the filter screen of the filter cartridge, and then enters the fresh air system from the air outlet. After working for a certain period of time or when it is detected that the amount of fresh air entering the heat exchange system of the machine becomes significantly smaller, high-pressure gas is delivered to the inlet pipe, and the high-pressure gas blows the dust or other debris accumulated on the surface of the filter screen toward the dust collecting bag, thereby cleaning the filter cartridge. When the dust collecting bag is full of dust, the old dust collecting bag can be taken out by opening the sealing door and a new dust collecting bag can be replaced. The utility model has a simple structure and is easy to use, and the filter cartridge can be cleaned online at any time without stopping the machine or production, thereby ensuring the cleaning and filtering effect of the filter cartridge, improving production efficiency and reducing costs.

[0032] The present invention is not limited to the above-mentioned specific implementation methods. For ordinary technicians in this field, various changes made based on the above-mentioned conception without creative work are all within the scope of protection of the present invention.

Claims

1. A fresh air filter for a stenter, comprising a stenter heat exchange system, characterized in that: The filter is installed at the front end of the fresh air inlet of the heat exchange system, and the filter is provided with a shell, one surface wall of the shell is provided with an air inlet, and the other surface wall adjacent to it is provided with an air outlet; a filter cartridge is provided inside the shell, one end of the filter cartridge is an open end, which is rotatably and sealedly connected to the shell at the air outlet; the other end of the filter cartridge is a closed end, which is rotatably connected to the surface wall of the shell opposite to the air outlet; the shell also has a surface wall provided with a collecting port, the collecting port is long and strip-shaped, and is parallel to the axial direction of the filter cartridge, and a dust bag is installed at the collecting port; an air blowing pipe parallel to the axial direction of the filter cartridge is provided inside the filter cartridge, and the air blowing pipe is provided with a plurality of air outlet holes, and the air outlet holes face the collecting port.

2. A fresh air filter for a setting machine according to claim 1, characterized in that: The shell is sealed and welded with a neck flange at the air outlet, and the open end of the filter cartridge is rotatably and sealedly connected to the neck flange.

3. A fresh air filter for a setting machine according to claim 2, characterized in that: A connecting hole is provided on the side wall of the neck flange, and the outer end of the blowing pipe is fixedly installed at the connecting hole through a bent joint.

4. The fresh air filter for a setting machine according to claim 2, characterized in that: A support rod is welded to the inner side of the inner side wall of the neck flange, and the other end of the support rod is fixedly connected to the inner end of the blowing pipe.

5. The fresh air filter for a setting machine according to claim 4, characterized in that: There are 2-5 support rods, one end of all the support rods is welded to form an integral support on the inner end of the blowing pipe, and the other end is spread and welded on the inner wall of the neck flange.

6. The fresh air filter for a setting machine according to claim 1, characterized in that: The shell is provided with a protective cover outside the collecting port, and the dust collecting bag is located inside the protective cover.

7. The fresh air filter for a setting machine according to claim 6, characterized in that: The collecting port is provided with a clamping joint, and the dust collecting bag is sealed and clamped on the clamping joint through its clamping plate.

8. The fresh air filter for a setting machine according to claim 7, characterized in that: The protective cover is provided with a take-in and put-out opening, and the take-in and put-out opening is provided with a sealing door.

9. The fresh air filter for a setting machine according to claim 7, characterized in that: The protective cover or the filter cartridge shell is provided with an exhaust hole at the lower end of the dust collecting bag.

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