CN211133284U

CN211133284U - Integrated compressed air filtering and purifying device

Info

Publication number: CN211133284U
Application number: CN201921846773.6U
Authority: CN
Inventors: 陈柏忠; 黄洪波
Original assignee: Zhuhai Guanghua Electromechanical Equipment Co ltd
Current assignee: Zhuhai Guanghua Electromechanical Equipment Co ltd
Priority date: 2019-10-30
Filing date: 2019-10-30
Publication date: 2020-07-31
Anticipated expiration: 2029-10-30

Abstract

The utility model discloses an integration compressed air filters purifier, it is including filtering the cover body and filtering the base, filters the cover body and filters the body of formation one behind the base fixed connection, filters this internal filter cavity that is equipped with of filter, the internal filter core that is equipped with of filter cover, filter and be equipped with in the base with the sealed complex divertor of filter core, be equipped with the air inlet that supplies compressed air inflow divertor on the first lateral wall of filtering the base, filter cover body top is equipped with the gas vent, be equipped with one-level drain valve and second grade drain valve on the second lateral wall of filtering the base respectively. The utility model has the advantages of simple structure, convenient use, high purification efficiency, powerful pollution discharge function, long service life, small installation space, convenient maintenance, low power consumption, low cost and the like.

Description

Integrated compressed air filtering and purifying device

[ technical field ] A method for producing a semiconductor device

The utility model relates to an air purification technical field, it is specific, relate to an integration compressed air filtration purification device.

[ background of the invention ]

Compressed air is the second largest power source next to electricity, and is widely applied to various fields of industrial production. The compressed air without purification contains a considerable amount of impurities, mainly: moisture, oil and solid particles. The quality of the compressed air is determined by the content of impurities, the requirements of different application occasions on the quality of the compressed air are different, and the application of a filter for filtering solid particles, oil and partial moisture in the compressed air is a main link in a compressed air purification process.

ISO8573-1 compressed air first part: the quality of the compressed air is clearly graded in the standards of impurities and purity grade. In different applications, different technical solutions are usually adopted to achieve the purification treatment of the compressed air according to actual requirements, as shown in fig. 1, in an existing general compressed air filtration purification scheme, solid particles, oil and most of liquid water in the compressed air are removed by three-stage filtration methods of a gas-water separator 101 (or an oil-water separator), a high-efficiency filter 102 and a precision filter 103, and gaseous moisture (water vapor) in the compressed air is removed by a condensation or adsorption method.

However, the above-mentioned prior general compressed air filtering and purifying solutions mainly have the following two problems and disadvantages:

1. the system structure is complicated: in order to realize the purpose of filtering and purifying the compressed air, a three-stage filter is required to be configured in the system, so that the installation and maintenance difficulty is increased and the equipment and maintenance cost is increased in certain use occasions with narrow space (such as locomotives, motor trains, engineering vehicles and other equipment).

2. Impurities or a mixture of pollutants, namely water, oil and solid particles, filtered by the gas-water separator or the oil-water separator and the filter need to be discharged in time by a pollution discharge device, and the gas-water separator and the filter need to be respectively provided with drain valves.

In addition, several drainage valves commonly used at present have the defects of manual drainage, floating ball drainage, electromagnetic valve drainage, liquid level sensing automatic drainage and the like, and particularly cannot meet the application in special environments such as locomotives, motor cars, engineering vehicles and the like.

(1) The manual drainage, this scheme is to install a manual valve, generally a ball valve, in the bottom of the filter, and open the valve manually regularly or irregularly to drain, and its problems and disadvantages are very obvious: pollutants in the filter cannot be discharged in time, and the pollutants can be frozen and cannot be discharged in cold areas in winter; the manual operation increases the workload; the manual operation is influenced by subjective factors of operators.

(2) The floating ball drains water, the scheme is the most common pollution discharge mode at present, the working principle is that the gravity of the floating ball is utilized to plug the discharge port, after a certain amount of water is stored, the buoyancy of the water overcomes the gravity of the floating ball, the floating ball floats, the discharge port is opened, and accumulated water is discharged. After the accumulated water is discharged, the floating ball resets, and the process is repeated. The main problems and disadvantages of this solution are: sewage in the system can not be discharged in time, and the sewage can be frozen and can not be discharged in cold areas in winter; the caliber of the water outlet is generally small and is easily blocked by dirt, so that the water drainage function is influenced; frequent cleaning and maintenance are needed, and the workload is increased; the service life is not long.

(3) The electromagnetic valve is used for draining water, and the scheme is that the electromagnetic valve which can be opened and closed at fixed time is arranged at the bottom of the filter to realize the sewage draining function. The main problems and disadvantages of this solution are: the user must provide power, otherwise can not use, the use occasion has been restricted; sewage cannot be discharged in time, and the sewage can be frozen and cannot be discharged in winter in cold areas; the opening time of the electromagnetic valve has no definite quantitative relation with the accumulated water in the filter, so that accumulated water in the system is not completely discharged or compressed air is wasted due to empty discharge; the electromagnetic valve coil and the sealing rubber diaphragm in the valve are easy to damage and have short service life.

(4) The scheme is an improved scheme of an electromagnetic valve drainage scheme. The water level is detected by an electronic sensing technology, and when the water level reaches a set value, the electromagnetic valve is controlled to be opened for draining. This solution still presents the following major problems and drawbacks: the user must provide power, otherwise can not use, the use occasion has been restricted; sewage cannot be drained in time, and icing and drainage cannot be caused in cold areas in winter; the electromagnetic valve coil and the sealing rubber diaphragm in the valve are easy to damage and have short service life; the structure is complex, the cost is high, the maintenance is inconvenient, and the popularization and the application are difficult.

[ Utility model ] content

The utility model mainly aims at providing an integrated compressed air filtering and purifying device which has the characteristics of simple structure, convenient use, high purifying efficiency, powerful pollution discharge function, long service life, small installation space, convenient maintenance, low power consumption, low cost and the like.

In order to realize foretell main purpose, the utility model provides an integration compressed air filters purifier, it is including filtering the cover body and filtering the base, filter the cover body and filter the body of formation one behind the base fixed connection, filter this internal filtration cavity that is equipped with, filter the internal filter core that is equipped with of cover, filter and be equipped with in the base with the sealed complex divertor of filter core, be equipped with the air inlet that supplies compressed air to flow in the divertor on the first side wall of filtering the base, the cover body top of filtering is equipped with the gas vent, be equipped with one-level drain valve and second grade drain valve on the second lateral wall of filtering.

The further scheme is that the fluid director comprises an upper trapezoidal round table and a lower trapezoidal round table which are symmetrically arranged, a circular thin plate is arranged above the trapezoidal round tables, and the connecting end parts of the upper trapezoidal round table and the lower trapezoidal round table are fixedly connected with each other and then are connected with the circular thin plate in series through bolts to be fixed on the filtering base.

The circular thin plate divides the filtering chamber into a first filtering cavity and a second filtering cavity, wherein the first filtering cavity is positioned in the filtering base and the second filtering cavity is positioned in the filtering cover body, the fluid director is positioned in the first filtering cavity, and the filter element is positioned in the second filtering cavity.

According to a further scheme, a plurality of first air guide holes for guiding or discharging compressed air are uniformly formed in the surface of the trapezoid circular table along the vertical direction, a plurality of second air guide holes for guiding or discharging compressed air are uniformly formed in the surface of the trapezoid circular table along the horizontal direction, and a plurality of third air guide holes for discharging the compressed air discharged through the first air guide holes and the second air guide holes are uniformly formed in the surface of the circular thin plate.

A further scheme is that the one-level drain valve comprises a one-level drainage cavity, a one-level valve element, a one-level valve block and a one-level valve cover, wherein the one-level valve element is installed in the one-level drainage cavity, the one-level valve block is installed in an inner cavity of the one-level valve cover, the one-level valve element and the one-level drainage cavity are sealed through sealant, a first control air chamber is arranged between the one-level valve block and the inner cavity of the one-level valve cover, the one-level valve cover is fixed on a second side wall of the filtering base through a flange bolt, and the one-level valve cover and the one-level valve element and the filtering.

According to a further scheme, the secondary drain valve comprises a secondary drainage cavity, a secondary valve element, a secondary valve plate and a secondary valve cover, the secondary valve element is installed in the secondary drainage cavity, the secondary valve element and the secondary drainage cavity are sealed through sealant, the secondary valve plate is installed in an inner cavity of the secondary valve cover, a second control air chamber is arranged between the secondary valve plate and the inner cavity of the secondary valve cover, the secondary valve cover is fixed on a second side wall of the filtering base through a flange bolt, and the secondary valve cover and the secondary valve element and the filtering base are sealed through an O-shaped sealing ring.

A first discharge port, a second discharge port and a main discharge port are further arranged on the filtering base, a first water inlet channel and a first water discharge channel are arranged on the primary valve element, a second water inlet channel and a second water discharge channel are arranged on the secondary valve element, and a liquid collecting tank is arranged on one side, close to the secondary water discharge valve, in the filtering base; the first discharge port is communicated with the first water inlet channel, and the first water discharge channel is communicated with the main discharge port; the liquid collecting tank is communicated with the second discharge port, the second discharge port is communicated with the second water inlet channel, and the second water inlet channel is communicated with the main discharge port.

In a further aspect, the filtering body includes an air inlet disposed on one side of the filtering base and the air outlet disposed on the top of the filtering cover; the filter core includes the filter core main part that comprises two-layer fibre filtering layer, wherein, the filter core main part is cylindrical structure.

Therefore, the utility model provides an integration compressed air filters purifier is mainly including filtering base, divertor, filter core, the filter mantle body, one-level drain valve and second grade drain valve, treats that the compressed air who purifies at first gets into the divertor and filters the purification, carries out further filtration and purification via the filter core again, can obtain air-purifying, and wherein, the liquid water that the in-process is detained, oil and large granule can in time be discharged through drain valve and outlet on the base. Therefore, the utility model has the advantages of simple structure, convenient use, high purification efficiency, powerful pollution discharge function, long service life, small installation space, convenient maintenance, low power consumption, low cost and the like.

Therefore, the utility model discloses simplify the product structure, reduced product cost and maintenance cost, enlarged the application range of product, especially to the application of product in some special service environment, solved installation and maintenance difficulty among the practical application.

Furthermore, the utility model discloses the driving automatic drain valve of pressure differential of configuration has overcome a great deal of not enough and the shortcoming of traditional drainage mode, has following characteristics: 1. the automatic drainage is realized without manual operation; 2. the pure mechanical structure does not need to control a power supply, thereby enlarging the application occasion and range; 3. the structure is simple, no easy-to-wear parts are arranged, the service life is greatly prolonged, and the replacement cost is saved; 4. the maintenance is extremely simple, only regular cleaning is needed, and the maintenance cost is avoided; 5. accumulated water is drained in time, the quality of compressed air is improved, and the possibility of icing is avoided.

[ description of the drawings ]

Fig. 1 is a schematic structural view of a general type compressed air filtering purifier of the prior art.

Fig. 2 is a schematic structural diagram of an embodiment of the integrated compressed air filtering and purifying device of the present invention.

Fig. 3 is a schematic structural view of a flow guider in an embodiment of the integrated compressed air filtering and purifying device of the present invention.

Fig. 4 is an exploded perspective view of the first-stage drain valve and the second-stage drain valve in the embodiment of the integrated compressed air filtering and purifying device of the present invention.

Fig. 5 is a block flow diagram of a filtering and purifying method applied in an embodiment of the integrated compressed air filtering and purifying device of the present invention.

Fig. 6 is a working principle diagram of the embodiment of the integrated compressed air filtering and purifying device of the utility model.

[ detailed description ] embodiments

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention.

Referring to fig. 2, the utility model discloses an integration compressed air filters purifier, including filtering the cover body 4 and filtering base 1, filter the cover body 4 and form one after filtering base 1 fixed connection and filter the body, filter this internal filtration cavity that is equipped with, filter the internal filter core 3 that is equipped with of cover, filter and be equipped with in the base 1 with the sealed complex divertor 2 of filter core 3, be equipped with the air inlet P1 that supplies compressed air inflow divertor 2 on the first lateral wall of filtering base 1, the cover body 4 top of filtering is equipped with gas vent P2, be equipped with one-level drain valve 5 and second grade drain valve 6 on the second lateral wall of filtering base 1 respectively.

As shown in fig. 3, the fluid director 2 includes an upper trapezoidal circular truncated cone and a lower trapezoidal circular truncated cone which are symmetrically arranged, such as an upper trapezoidal circular truncated cone 211 and a lower trapezoidal circular truncated cone 212, a circular thin plate 213 is arranged above the trapezoidal circular truncated cones, and the connecting ends of the upper trapezoidal circular truncated cone and the lower trapezoidal circular truncated cone are fixedly connected with each other and then are serially connected with the circular thin plate 213 through bolts 214 to be fixed on the filter base 1.

The circular thin plate 213 divides the filtering chamber into a first filtering cavity located in the filtering base 1 and a second filtering cavity located in the filtering cover 4, which are mutually communicated, the fluid director 2 is located in the first filtering cavity, and the filter element 3 is located in the second filtering cavity. The first filtering cavity in this embodiment is a cylindrical inner cavity 1-1 of the filtering base 1.

A plurality of first air holes 201 for introducing or discharging compressed air are uniformly formed in the surface of the trapezoidal circular truncated cone in the vertical direction, a plurality of second air holes 202 for introducing or discharging compressed air are uniformly formed in the surface of the trapezoidal circular truncated cone in the horizontal direction, and a plurality of third air holes 203 for discharging compressed air discharged through the first air holes 201 and the second air holes 202 are uniformly formed in the surface of the circular thin plate 213.

Specifically, the fluid director 2 in this embodiment is a damping fluid director, and includes three main components, namely, two trapezoidal circular truncated cones and a circular thin plate 213 which are vertically symmetrical, a plurality of air holes are uniformly distributed in the horizontal and vertical directions of the trapezoidal circular truncated cones, a plurality of air holes are also distributed on the circular thin plate 213, and the trapezoidal circular truncated cones and the circular thin plate 213 are connected in series through bolts to form a whole and then are vertically installed in the cylindrical inner cavity 1-1 of the filter base 1.

As shown in fig. 4, the first-stage drain valve 5 includes a first-stage drain cavity 21, a first-stage valve core 22, a first-stage valve sheet 23, a first-stage valve cover 24, the first-stage valve core 22 is installed in the first-stage drain cavity 21, the first-stage valve sheet 23 is installed in an inner cavity of the first-stage valve cover 24, a first control air chamber 26 is arranged between the inner cavity of the first-stage valve sheet 23 and the inner cavity of the first-stage valve cover 24, the first-stage valve cover 24 is fixed on the second side wall of the filtering base 1 through a flange bolt, and the first-stage valve cover 24.

In this embodiment, the second-stage drain valve 6 includes a second-stage drain cavity 31, a second-stage valve element 32, a second-stage valve plate 33 and a second-stage valve cover 34, the second-stage valve element 32 is installed in the second-stage drain cavity 31, the second-stage valve plate 32 is installed in an inner cavity of the second-stage valve cover 34, a second control air chamber 36 is arranged between the inner cavity of the second-stage valve plate 32 and the inner cavity of the second-stage valve cover 34, the second-stage valve cover 34 is fixed on the second side wall of the filtering base 1 through a flange bolt, and the second-stage valve cover 34, the. Wherein, the first-stage drain valve 5 and the second-stage drain valve 6 are fixed on the filtering base 1 through bolts for flanges.

In this embodiment, the filtering base 1 is further provided with a first discharge port P3, a second discharge port P4 and a total discharge port P5, the primary valve core 22 is provided with a first water inlet channel T1 and a first water discharge channel T2, the secondary valve core is provided with a second water inlet channel and a second water discharge channel, and a liquid collecting tank 1-2 is arranged on a part of the second side wall of the filtering base 1, which is close to the secondary water discharge valve 6; the first discharge port P3 communicates with a first water feed passage T1, the first water feed passage T1 communicates with a first water discharge passage T2, and the first water discharge passage T2 communicates with a total discharge port P5; the sump 1-2 is communicated with the second discharge port P4, the second discharge port P4 is communicated with the second water feed passage, and the second drain passage is communicated with the total discharge port P5.

Specifically, the first-stage drain valve 5 and the second-stage drain valve 6 are pressure difference driving type automatic drain valves, the structures of the first-stage drain valve 5 and the second-stage drain valve 6 are completely the same, and the first-stage drain valve 5 consists of a first-stage drain cavity 21, a first-stage valve core 22, a first-stage valve plate 23, a first-stage valve cover 24 and an O-shaped sealing ring 25; the second-stage drain valve 6 is composed of a second-stage drain cavity 31, a second-stage valve core 32, a second-stage valve plate 33, a second-stage valve cover 34 and an O-shaped sealing ring 35.

The primary valve core 22 and the valve core 32 are respectively installed in the primary drainage cavity 21 and the secondary drainage cavity 31, and are fixed and sealed by structural adhesive. The first-stage valve plate 23 and the second-stage valve plate 33 are round thin sheets and are respectively installed in cylindrical cavities of the first-stage valve cover 24 and the second-stage valve cover 34, the first-stage valve cover 24 and the second-stage valve cover 34 are fixed on the filtering base 1 through flanges and bolts, and are respectively sealed through an O-shaped sealing ring 25 and an O-shaped sealing ring 35.

In the present embodiment, the structure and the operation principle of the first-stage drain valve 5 and the second-stage drain valve 6 are completely the same, and the operation principle of the first-stage drain valve 5 will be described below.

Two channels, namely a first water (gas) inlet channel T1 and a first water (gas) discharge channel T2, are arranged on a valve core 22 of the first-stage water discharge valve 5, the first water inlet channel T1 is communicated with a first water discharge port P3 on the filter base 1, and the first water discharge channel T2 is connected with the atmosphere through a total discharge port P5 on the filter base 1. First-stage valve plate 23 is installed between the end face of first-stage valve core 22 and first-stage valve cover 24, first-stage valve cover 24 is used for fixing the position of first-stage valve plate 23, and meanwhile, a first control air chamber 26 is reserved between first-stage valve plate 23 and first-stage valve cover 24.

In practical application, the drainage working principle of the drainage valve comprises the following steps: according to different thermodynamic principles of flow speed and volume change when compressed air and liquid water pass through the drainage channel, pressure difference is generated between the upper part and the lower part of the valve plate to drive the valve plate to open and close. Compressed air containing water enters a first water inlet channel T1 of the primary valve core 22 through a first water outlet P3 of the filter base 1, liquid water pushes the primary valve plate 23 away by virtue of working pressure, and the liquid water is rapidly discharged to the atmosphere through a main discharge port P5 through a first water outlet channel T2.

After the liquid water is discharged, a small amount of air is discharged subsequently, and the compressed air has larger volume and flow rate than the liquid water, so that the upper and lower parts of the first-stage valve plate 23 generate pressure difference, and the first-stage valve plate 23 is closed quickly under the suction force of the air flow rate. When the first-stage valve plate 23 is closed, the first-stage valve plate 23 is subjected to pressure on two sides, the force-receiving area on the left side of the first-stage valve plate 23 is smaller than that on the right side of the first-stage valve plate 23, and the pressure in the first control air chamber 26 between the first-stage valve plate 23 and the first-stage valve cover 24 comes from the air pressure, so that the force-receiving area on the right side of the first-stage valve plate 23 is larger than that on the. After the pressure in the first control air chamber 26 is slowly reduced, the liquid water pushes away the first-stage valve plate 23 by the working pressure to be continuously discharged, and the circulation work is carried out in such a way, so that the intermittent drainage is realized.

In the present embodiment, the filter element 3 includes a filter element main body composed of two fiber filter layers, wherein the filter element main body has a cylindrical structure. Specifically, the filter element 3 is fixed to the filter base 1 by screw connection and sealed by an O-ring 7. The filtering cover body 4 is connected with the filtering base 1 through a flange and is fixed by bolts, and meanwhile, the filtering cover body is sealed through an O-shaped sealing ring 8.

Therefore, the utility model provides an integration compressed air filters purifier is mainly including filtering base 1, divertor 2, filter core 3, the filter cover body 4, one-level drain valve 5 and second grade drain valve 6, treats that the compressed air who purifies at first gets into divertor 2 and filters the purification, carries out further filtration and purification via filter core 3 again, can obtain the air after purifying, wherein, the liquid water, oil and the large granule that the in-process is detained can in time be discharged through drain valve and the outlet on filtering base 1. Therefore, the utility model has the advantages of simple structure, convenient use, high purification efficiency, powerful pollution discharge function, long service life, small installation space, convenient maintenance, low power consumption, low cost and the like.

Therefore, the utility model discloses simplify the product structure, reduced product cost and maintenance cost, enlarged the application range of product, especially to the application of product in some special service environment (like the narrow environment in space such as locomotive, motor car and engineering vehicle), solved installation and maintenance difficulty among the practical application.

The embodiment also provides a filtering and purifying method of the integrated compressed air filtering and purifying device, which is applied to the integrated compressed air filtering and purifying device. As shown in fig. 5, when the method filters and purifies the compressed air to be purified, firstly, step S1 is executed, the compressed air to be purified is introduced into the integrated compressed air filtering and purifying device, the compressed air to be purified enters the filtering base 1 through the air inlet P1, the compressed air to be purified is subjected to primary filtering and purifying by the flow guider 2, and the compressed air after primary filtering and purifying is transmitted to the filter element 3, wherein the liquid water, oil and solid particles filtered and retained by the flow guider 2 are settled at the bottom of the filtering base 1 and automatically discharged after entering the primary water discharge valve 5 through the first discharge port P3.

Then, step S2 is executed, the filter element 3 performs a second-stage filtration and purification on the compressed air transmitted from the fluid director 2, and the compressed air is discharged out of the compressed air filtration and purification device through the air outlet P2 at the top of the filtration cover body, so as to obtain purified air, wherein, the liquid water, oil and solid particles retained by the filter element 3 are automatically discharged after a part of the liquid water, oil and solid particles settle at the bottom of the filtration base 1 and enter the first-stage drain valve 5 through the first discharge port P3 under the action of gravity, and the other part of the liquid water, oil and solid particles settle in the liquid collection tank 1-2 of the filtration base 1 and enter the second-stage drain valve 6 through the second discharge port P4 and are automatically discharged.

Further, in step S1, when the compressed air to be purified enters the fluid director 2, the compressed air to be purified enters the fluid director 2 through the first air guiding hole arranged in the vertical direction and the second air guiding hole arranged in the horizontal direction of the lower trapezoidal circular truncated cone 212; the compressed air inside the fluid director 2 is discharged through the first air guide holes arranged in the vertical direction of the upper trapezoidal round table 211 and the second air guide holes arranged in the horizontal direction, and then enters the filter element 3 through the third air guide holes on the surface of the circular thin plate 213.

In practical application, as shown in fig. 6, when compressed air to be purified is filtered and purified, firstly, the compressed air to be purified enters the filtering base 1 of the filtering and purifying device through the air inlet P1, and then enters the flow guider 2 installed in the cylindrical inner cavity 1-1 of the filtering base 1.

The compressed air enters the inside of the fluid director 2 through the air guide holes in the horizontal and vertical directions of the lower trapezoidal round platform 212 of the fluid director 2, then is discharged through the air guide holes in the horizontal and vertical directions of the upper trapezoidal round platform 211, and then enters the filter element 3 through the air guide holes on the circular thin plate 213. The compressed air decelerates in the process of repeatedly colliding with the inner wall and the outer wall of the fluid director 2, most of liquid water, oil and large particles carried in the compressed air are retained due to the effects of deceleration energy consumption and gravity, and the rest of the compressed air continuously enters the inner cavity of the filter element 3 along with the compressed air. The liquid water, oil and large particles which are retained are finally deposited at the bottom of the cylindrical inner cavity 1-1 of the filtering base 1 and automatically discharged after entering the first-stage drain valve 5 through the first drain port P3.

The filter element 3 of the present embodiment is a cylindrical structure, which includes two stages of high-efficiency and precise fiber filter layers, and the filtering operation principle thereof, i.e., the manner of trapping various particles, is also consistent with that of a general-purpose filter: (1) directly intercepting: when particles with a certain particle size move to the vicinity of the fiber surface, the distance from the center line to the fiber surface is smaller than the radius of the particles, and dust particles are intercepted by the filter material fibers and deposited. (2) Inertial collision: the particles, which have a greater mass or greater velocity, are deposited by impacting the surface of the fibers by inertia. (3) Diffusion effect: particles having a small particle diameter are likely to collide with the surface of the fiber and adhere thereto because of strong brownian motion. (4) The gravity action: as the particles pass through the layer of fibres, they settle by gravity onto the fibres. (5) Electrostatic effect: either the fibers or the particles may be charged, creating an electrostatic effect that attracts particles to the surface of the fibers.

Therefore, under the action of gravity, a part of particles such as water, oil, particles and the like captured and gathered by the fiber filtering layer of the filter element 3 is automatically discharged after entering the first-stage drain valve 5 through the first discharge port P3 after settling at the bottom of the cylindrical inner cavity 1-1 of the filtering base 1, and the other part of particles is automatically discharged after entering the second-stage drain valve 6 through the second discharge port P4 after settling in the liquid collecting tank 1-2 of the filtering base 1.

Therefore, the utility model provides a filtration purification method just can carry out filtration purification to compressed air through simple mechanical structure, at first, treats that the compressed air who purifies gets into divertor 2 and filters and purifies, carries out further filtration purification via filter core 3 again, can obtain fresh air, wherein, liquid water, oil and the large granule that the in-process is detained can in time be discharged through drain valve and outlet on the base 1. Therefore, the utility model has the advantages of simple structure, convenient use, high purification efficiency, powerful pollution discharge function, long service life, small installation space, convenient maintenance, low power consumption, low cost and the like.

It should be noted that the above is only the preferred embodiment of the present invention, but the design concept of the present invention is not limited thereto, and all the insubstantial modifications made by using the design concept of the present invention also fall within the protection scope of the present invention.

Claims

1. Integration compressed air filters purifier, including filtering the cover body and filtering the base, filter the cover body with filter and form a filtration body behind the base fixed connection, filter this internal filtration cavity that is equipped with, its characterized in that:

the filter cover is internally provided with a filter element, the filter base is internally provided with a fluid director in sealed fit with the filter element, a first side wall of the filter base is provided with an air inlet for compressed air to flow into the fluid director, the top of the filter cover body is provided with an air outlet, and a second side wall of the filter base is respectively provided with a first-stage drain valve and a second-stage drain valve.

2. The integrated compressed air filtering and purifying device according to claim 1, wherein:

the fluid director comprises an upper trapezoidal round table and a lower trapezoidal round table which are symmetrically arranged, a circular thin plate is arranged above the trapezoidal round tables, and the upper trapezoidal round table and the lower trapezoidal round table are fixedly connected with the circular thin plate in series through bolts after the connecting end parts of the trapezoidal round tables are fixedly connected with each other.

3. The integrated compressed air filtering and purifying device according to claim 2, wherein:

the circular thin plate divides the filtering chamber into a first filtering cavity and a second filtering cavity, the first filtering cavity is located in the filtering base and the second filtering cavity is located in the filtering cover body, the fluid director is located in the first filtering cavity, and the filter element is located in the second filtering cavity.

4. The integrated compressed air filtering and purifying device according to claim 2, wherein:

the trapezoidal round platform is provided with a plurality of first air guide holes that are used for leading-in or discharge compressed air uniformly along vertical direction on the surface trapezoidal round platform is provided with a plurality of second air guide holes that are used for leading-in or discharge compressed air uniformly along the horizontal direction on the surface circular sheet evenly be provided with a plurality of third air guide holes that are used for discharging via first air guide hole the second air guide hole exhaust compressed air on the surface.

5. The integrated compressed air filtering and purifying device according to claim 1, wherein:

the one-level drain valve comprises a one-level drainage cavity, a one-level valve element, a one-level valve block and a one-level valve cover, wherein the one-level valve element is installed in the one-level drainage cavity, the one-level valve block is installed in an inner cavity of the one-level valve cover, the one-level valve element is sealed with the one-level drainage cavity through sealant, a first control air chamber is arranged between the one-level valve block and the inner cavity of the one-level valve cover, the one-level valve cover is fixed on a second side wall of the filtering base through bolts for flanges, and the one-level valve cover is sealed with the filtering base through an O-.

6. The integrated compressed air filtering and purifying device according to claim 5, wherein:

the second-stage drain valve comprises a second-stage drainage cavity, a second-stage valve element, a second-stage valve block and a second-stage valve cover, the second-stage valve element is installed in the second-stage drainage cavity, the second-stage valve element and the second-stage drainage cavity are sealed through sealing glue, the second-stage valve block is installed in an inner cavity of the second-stage valve cover, a second control air chamber is arranged between the second-stage valve block and the inner cavity of the second-stage valve cover, the second-stage valve cover is fixed on a second side wall of the filtering base through bolts for flanges, and the second-stage valve cover and the second-stage valve element and the.

7. The integrated compressed air filtering and purifying device according to claim 6, wherein:

the filter base is also provided with a first discharge port, a second discharge port and a main discharge port, the primary valve core is provided with a first water inlet channel and a first water discharge channel, the secondary valve core is provided with a second water inlet channel and a second water discharge channel, and a liquid collecting tank is arranged at one side of the filter base close to the secondary water discharge valve;

the first discharge port is communicated with the first water inlet channel, and the first water discharge channel is communicated with the main discharge port;

the liquid collecting tank is communicated with the second discharge port, the second discharge port is communicated with the second water inlet channel, and the second water inlet channel is communicated with the main discharge port.

8. The integrated compressed air filtering and purifying device according to any one of claims 1 to 7, wherein:

the filtering body comprises an air inlet arranged on one side of the filtering base and an air outlet arranged on the top of the filtering cover body; the filter core includes the filter core main part that comprises two-layer fibre filtering layer, wherein, the filter core main part is cylindrical structure.