阅读说明：本技术 冗余防阻塞过滤器 (Redundant anti-blocking filter ) 是由 李凯 罗志伟 王松 王德志 孟祥浩 刘冠川 于 2021-07-23 设计创作，主要内容包括：本发明公开了一种冗余防阻塞过滤器,包括：过滤装置,所述过滤装置包括互为冗余的第一过滤器和第二过滤器；所述第一过滤器与所述第二过滤器的内部均设有永磁吸附装置；监控装置,所述监控装置分别与所述第一过滤器和所述第二过滤器连接,所述监控装置用于控制所述第一过滤器与所述第二过滤器进行切换。本发明的技术方案,通过多重措施保障末端换热器冷冻水供水质量和流量,第一重保障为永磁吸附装置对流经过滤器的冷冻水中的大部分铁质杂质及附着物进行吸附,避免铁质杂质及附着物堵塞过滤网；第二重保障则是通过切换机制和反冲洗机制实现滤网的自清洗。(The invention discloses a redundant anti-blocking filter, comprising: a filtering device comprising a first filter and a second filter that are redundant of each other; permanent magnetic adsorption devices are arranged in the first filter and the second filter; and the monitoring device is respectively connected with the first filter and the second filter and is used for controlling the first filter and the second filter to be switched. According to the technical scheme, the quality and the flow of the water supply of the chilled water of the tail end heat exchanger are guaranteed through multiple measures, the first important guarantee is that the permanent magnetic adsorption device adsorbs most of iron impurities and attachments in the chilled water passing through the filter, and the iron impurities and the attachments are prevented from blocking the filter screen; the second guarantee is that the self-cleaning of the filter screen is realized through a switching mechanism and a back flushing mechanism.)

1. A redundant anti-clogging filter, comprising:

a filtering device comprising a first filter and a second filter that are redundant of each other; permanent magnetic adsorption devices are arranged in the first filter and the second filter;

and the monitoring device is respectively connected with the first filter and the second filter and is used for controlling the first filter and the second filter to be switched.

2. The redundant anti-clogging filter of claim 1, wherein the permanent magnet adsorption means is an overhead walkway arrangement.

3. The redundant anti-clogging filter of claim 2, wherein a water outlet is arranged at the bottom of each of the first filter and the second filter, and a filter screen is arranged at the water outlet and has a mesh number larger than 60.

4. The redundant anti-clogging filter of claim 3 wherein said monitoring means is connected to a plurality of sensors for sensing flow and pressure of the line water flow.

5. The redundant anti-clogging filter of claim 4, wherein a water inlet is provided at each of the rear ends of the first and second filters;

the water inlet is provided with an electric control valve, and the electric control valve is used for controlling the opening and closing of the water inlet.

6. The redundant anti-clogging filter of claim 5, wherein said monitoring device is connected to an electrically operated valve switch controller, said monitoring device controlling the operation of said electrically operated valve via said electrically operated valve switch controller.

7. The redundant anti-clogging filter of claim 6, wherein an internal visualization device is provided at the front end of each of said first and second filters, said internal visualization device being disposed opposite said water inlet.

8. The redundant anti-clogging filter of claim 7, wherein said internal visualization device is provided as a detachable structure.

9. The redundant anti-clogging filter of claim 1 wherein said first and second filters are each provided with a back flush electrical valve for controlling the on and off of the back flush path.

10. The redundant anti-clogging filter of claim 9, wherein the water outlet of the first filter is in communication with the water outlet of the first filter.

Technical Field

The invention belongs to the technical field of filtering devices, and particularly relates to a redundant anti-blocking filter.

Background

After the construction of the air conditioner water pipeline is finished, the inside of the air conditioner water pipeline is cleaned, most impurities in the air conditioner water pipeline are basically cleaned, a small amount of free iron impurities still exist along with water circulation, and the iron impurities can be combined with silt and algae generated in the water replenishing process of the water supply pipeline in the circulation process.

In order to solve the above problems, a general-purpose filter (filter screen size is usually 28 mesh) is generally installed at the end, but after the water system is operated for a long time, impurities are attached and accumulated on the filter screen, and the risk that the end filter is blocked still exists.

In addition, the traditional anti-blocking method for the tail end filter is that whether a filter screen in the tail end Y-shaped filter has impurities or not is regularly observed, the filter is manually disassembled and cleaned when necessary, at the moment, rear end equipment related to the filter needs to be shut down, after the filter is reused, the equipment is restarted for use, and the operation and maintenance cost is high.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, the invention aims to provide a redundant anti-blocking filter which can adsorb most of iron impurities of the chilled water and can automatically clean a filter screen.

In order to solve the above technical problem, an embodiment of the present invention provides the following technical solutions:

a redundant anti-clogging filter comprising:

a filtering device comprising a first filter and a second filter that are redundant of each other; permanent magnetic adsorption devices are arranged in the first filter and the second filter;

and the monitoring device is respectively connected with the first filter and the second filter and is used for controlling the first filter and the second filter to be switched.

Optionally, the permanent magnet adsorption device is arranged in an overhead through-laying manner.

Optionally, water outlets are formed in the bottoms of the first filter and the second filter, filter screens are arranged at the water outlets, and the mesh number of the filter screens is larger than 60 meshes.

Optionally, the monitoring device is connected to a plurality of sensors, and the sensors are used for sensing the flow rate and pressure of the water flow in the pipeline.

Optionally, the rear ends of the first filter and the second filter are both provided with a water inlet;

the water inlet is provided with an electric control valve, and the electric control valve is used for controlling the opening and closing of the water inlet.

Optionally, the monitoring device is connected to an electric valve switch controller, and the monitoring device controls the operating state of the electric control valve through the electric valve switch controller.

Optionally, the front ends of the first filter and the second filter are both provided with an internal visualization device, and the internal visualization device is arranged opposite to the water inlet.

Optionally, the internal visualization device is provided as a detachable structure.

Optionally, the first filter and the second filter are both provided with a back-flushing electric valve for controlling on-off of the back-flushing passage.

Optionally, the water outlet of the first filter is communicated with the water outlet of the first filter.

The embodiment of the invention has the following technical effects:

according to the technical scheme, 1) the water supply quality and flow of the chilled water of the tail end heat exchanger are guaranteed, and meanwhile, most of iron impurities and attachments in the chilled water passing through the filter are adsorbed by the permanent magnet adsorption device, so that the iron impurities and the attachments are prevented from blocking a filter screen.

2) Under the condition that pipeline blocking occurs, switching between the first filter and the second filter can be automatically realized, the filter screen is automatically cleaned, the operation and maintenance processing response capacity is greatly improved, and operation and maintenance operation is simplified.

3) The inside visualization device is provided, the operation and maintenance personnel of being convenient for know the inside quality of water condition of filter, effectively prevent and deal with the unexpected situation in water route, simultaneously, inside visualization device dismantles the back, can regard as the maintenance of manhole to carry out blowdown and internals inside the filter.

4) Simple structure, low cost and wide application value.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

FIG. 1 is a schematic diagram of a redundant anti-blocking filter according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of another configuration of a redundant anti-blocking filter provided by an embodiment of the present invention;

in the figure: 100-a first filter; 101-a first internal visualization device; 102-a first water outlet; 103-a first permanent magnetic adsorption device; 104-a first electrically controlled valve; 105-a first water inlet; 106-a second electrically controlled valve; 107-first back flush electrically operated valve; 108-a sewerage pipeline; 109-a first filter screen; 200-a second filter; 201-a second internal visualization device; 202-a third electrically controlled valve; 203-a second water outlet; 204-a second permanent magnetic adsorption device; 205-a second water inlet; 206-a fourth electrically controlled valve; 207-a second filter screen; 208-a second back flush electrically operated valve; 300-a monitoring device; 301-a first inductor; 302-electrically operated valve switch controller; 303-a second inductor; 304-a third inductor; 400-air conditioner water system water supply main pipeline.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

As shown in fig. 1, an embodiment of the present invention provides a redundant anti-blocking filter, including:

a filtering device comprising a first filter 100 and a second filter 200 that are redundant of each other; permanent magnetic adsorption devices are arranged inside the first filter 100 and the second filter 200;

specifically, the permanent magnet adsorption device contains a permanent magnet which can be strong magnet or permanent magnet, and the permanent magnet is preferably permanent magnet in order to improve the stability of the device; the permanent magnet may be in the shape of a circular magnet, a square or a profiled magnet, preferably a rectangular magnet.

The permanent magnetic adsorption device comprises a first permanent magnetic adsorption device 103 and a second permanent magnetic adsorption device 204, wherein the first permanent magnetic adsorption device 103 is arranged inside the first filter 100, and the second permanent magnetic adsorption device 204 is arranged inside the second filter 200.

A monitoring device 300, wherein the monitoring device 300 is respectively connected with the first filter 100 and the second filter 200, and the monitoring device 300 is used for controlling the first filter 100 and the second filter 200 to switch.

Specifically, the front ends of the first filter 100 and the second filter 200 are communicated with the main water supply pipeline 400 of the air-conditioning water system, and the water outlets of the first filter 100 and the second filter 200 are communicated with a terminal heat exchanger, wherein the heat exchanger may be arranged in a T-shaped or Y-shaped structure.

According to the embodiment of the invention, the quality and the flow of the chilled water supplied by the tail end heat exchanger are ensured, and meanwhile, the permanent magnetic adsorption device adsorbs most of iron impurities and attachments in the chilled water passing through the filter, so that the iron impurities and the attachments are prevented from blocking the filter screen; under the condition that a pipeline is blocked, the first filter 100 and the second filter 200 can be automatically switched, the filter screen is automatically cleaned, the operation and maintenance processing response capacity is greatly improved, and the operation and maintenance operation is simplified.

In an optional embodiment of the invention, the permanent magnet adsorption device is arranged in an overhead through-laying manner.

In particular, the permanent magnet adsorption device can be placed near the internal visualization device, at the water inlet or in an overhead through-paving, preferably in an overhead through-paving.

According to the embodiment of the invention, the permanent magnet adsorption device adsorbs most of the iron impurities and attachments in the frozen water flowing through the filter, so that the iron impurities and the attachments are prevented from blocking the filter screen to the maximum extent.

In an alternative embodiment of the present invention, water outlets are respectively disposed at the bottoms of the first filter 100 and the second filter 200, and the water outlets are provided with filter screens, wherein the mesh number of the filter screens is greater than 60.

Specifically, the bottom of the first filter 100 is provided with a first water outlet 102, and the bottom of the second filter 200 is provided with a second water outlet 203.

The filter includes a first filter 109 and a second filter 207, the first filter 109 is disposed at the first water outlet 102, and the second filter 207 is disposed at the second water outlet 203.

According to the embodiment of the invention, the high-density filter screen with more than 60 meshes is arranged, so that the filtered water quality is better ensured, and meanwhile, the tail end heat exchanger is effectively protected.

In an alternative embodiment of the present invention, the monitoring device 300 is connected to a plurality of sensors for sensing the flow rate and pressure of the water flowing through the pipeline.

Specifically, the inductor includes a first inductor 301, a second inductor 303 and a third inductor;

the first sensor 301 is used for sensing the flow and pressure of the water flow of the pipeline at the first water outlet 102, and the second sensor 303 is used for sensing the flow and pressure of the water supply main pipeline 400 of the air-conditioning water system; the third sensor is used for detecting the flow and pressure of the water in the pipeline at the second water outlet 203.

In the embodiment of the invention, the sensors are arranged on the main water supply pipeline 400, the first water outlet 102 and the second water outlet 203 of the air-conditioning water system, the monitoring device 300 of the tail end heat exchanger can monitor the data in time, and when one of the filters is judged to be abnormal, the automatic switching of the filters in time can be immediately realized by controlling the electric control valve, so that the normal operation of the tail end heat exchanger can be ensured.

In an alternative embodiment of the present invention, a water inlet is disposed at the rear end of each of the first filter 100 and the second filter 200;

the water inlet is provided with an electric control valve, and the electric control valve is used for controlling the opening and closing of the water inlet.

Specifically, the first filter 100 is provided with a first water inlet 105, and the second filter 200 is provided with a second water inlet 205.

The first outlet 102 is provided with a first electrically controlled valve 104 for preventing the backflow of the chilled water to the first filter 100, and the second outlet 203 is provided with a third electrically controlled valve for preventing the backflow of the chilled water to the second filter 200.

The first water inlet 105 is provided with a second electrically controlled valve 106 for controlling the opening and closing of the first water inlet 105, and the second water inlet 205 is provided with a third electrically controlled valve 202 for controlling the opening and closing of the second water inlet 205.

In the embodiment of the invention, the electric control valves are arranged at the first water outlet 102, the second water inlet 205, the first water outlet 102 and the second water outlet 203, so that the working states of the first water inlet 105, the second water inlet 205, the first water outlet 102 and the second water outlet 203 are automatically controlled through the electric control valves.

In an alternative embodiment of the present invention, the monitoring device 300 is connected to an electric valve switch controller 302, and the monitoring device 300 controls the operating state of the electric control valve through the electric valve switch controller 302.

This embodiment of the present invention realizes that the monitoring device 300 automatically controls the opening and closing of the first water inlet 105, the second water inlet 205, the first water outlet 102 and the second water outlet 203 through the electric control valve.

In an alternative embodiment of the present invention, an internal visualization device is disposed at the front end of each of the first filter 100 and the second filter 200, and the internal visualization device is disposed opposite to the water inlet.

Specifically, inside visualization device includes clamp and transparent window, fixes the front end at the filter through the clamp with transparent window.

Wherein the internal visualization means comprise a first internal visualization means 101 and a second internal visualization means 201; the first internal visualization means 101 are arranged at the front end of the first filter 100; a second internal visualization device 201 is arranged at the front end of the second filter 200.

The embodiment of the invention is provided with the transparent window, so that the water quality in the pipeline can be directly observed, the water quality condition of the pipeline can be known at any time, the emergency condition of the water channel can be prevented and responded in advance, and the loss is reduced.

In an alternative embodiment of the invention, the internal visualization means is provided as a detachable structure.

According to the embodiment of the invention, the transparent window can be used as a sewage draining outlet and a filter inspection hole after being detached, so that the structure of the filter is effectively simplified, and the maintenance operation is simpler and more convenient.

The above embodiments of the present invention can be implemented by the following implementation manners:

under the normal operation condition, the second electric control valve opens the valve (meanwhile, the fourth electric control valve 206 is in a closed state), the chilled water enters the first filter 100 from the first water inlet 105, the first permanent magnetic adsorption device 103 in the first filter 100 adsorbs most of ferrous impurities and attachments in the chilled water flowing through the first filter 100, the ferrous impurities and the attachments are prevented from blocking the first filter screen 109, the filtering is performed through the first filter screen 109 of the first filter 100, the impurities are prevented from entering and being retained to the maximum extent to block the heat exchanger, the chilled water flow is ensured, sufficient refrigeration is provided for the equipment, the stable operation of the related equipment is ensured, when the index obtained by the first inductor 301 of the first filter 100 is lower than a set threshold value, and the data obtained by the second inductor 303 is normal, the monitoring device 300 of the tail end heat exchanger judges that the first filter 100 is blocked, and automatically switching the first filter 100 to the second filter 200, opening a fourth electric control valve 206 of the second filter 200 through an electric valve switch controller 302, closing the second electric control valve 106, allowing chilled water to enter the second filter 200 from a second water inlet 205, filtering through a second filter screen 207 of the second filter 200, preventing impurities from entering and being retained to block the heat exchanger, ensuring chilled water flow, providing sufficient refrigeration for equipment, ensuring stable operation of related equipment, simultaneously triggering a fault reporting mechanism by a monitoring device 300 of the tail end heat exchange controller, sending a fault notification to operation and maintenance personnel for timely processing, and after the operation and maintenance personnel check and maintain, reducing the filter to the original state of the first filter 100 as a main filter and checking the valve state.

In an alternative embodiment of the present invention, as shown in fig. 2, the first filter 100 and the second filter 200 are provided with back-flushing electric valves for controlling the on-off of the back-flushing path.

Specifically, the monitoring device 300 is connected to a back-flushing electric valve, which includes a first back-flushing electric valve 107 and a second back-flushing electric valve, wherein the first back-flushing electric valve 107 is used for controlling the on-off of the first filter 100 and the sewage pipe 108, and the second back-flushing electric valve 208 is used for controlling the passage of the second filter 200 and the sewage pipe 108.

In the embodiment of the present invention, by setting the back flushing valve, the monitoring device 300 controls the on/off of the loop of the back flushing first filter 109 by controlling the working state of the back flushing electric valve, so as to automatically back flush the first filter 109 according to the data of the blockage of the first filter 109.

In an alternative embodiment of the present invention, the water outlet of the first filter 100 is communicated with the water outlet of the first filter 100.

In the embodiment of the invention, the first water outlet 102 is communicated with the second water outlet 203, so that when the first backwashing electric valve 107 and the second backwashing electric valve 208 are in an open state, the first filter screen 109 is backwashed by water filtered by the second filter 200, and the operation and maintenance operations are simplified.

The above embodiments of the present invention can be implemented by the following implementation manners:

under the normal operation condition, the second electric control valve opens the valve (meanwhile, the fourth electric control valve 206, the first and second back flushing electric valves 208 are in a closed state), the chilled water enters the first filter 100 from the first water inlet 105, the first permanent magnetic adsorption device 103 adsorbs most of iron impurities and attachments in the chilled water flowing through the first filter 100, the iron impurities and the attachments are prevented from blocking the first filter screen 109, the first filter screen 109 is used for filtering, the impurities are prevented from entering and being retained to block the heat exchanger to the maximum extent, the chilled water flow is ensured, sufficient refrigeration is provided for the equipment, the stable operation of the related equipment is ensured, when the flow and pressure values obtained by the first sensor 301 are lower than the preset safety threshold value, and the data obtained by the second sensor 303 are normal, the monitoring device 300 of the tail end heat exchanger judges that the first filter screen 109 is possibly blocked, the switching operation from the first filter 100 to the second filter 200 is automatically carried out, the fourth electric control valve 206 is opened through the electric valve switch controller 302, the second electric control valve 106 is closed at the same time, the first reverse flushing electric valve 107 is opened, the chilled water enters the second filter 200 from the second water inlet 205 and is filtered through the second filter screen 207, impurities are prevented from entering and being retained to block the heat exchanger, the chilled water flow is ensured, sufficient refrigeration is provided for equipment, and the stable operation of related equipment is ensured, at the moment, the second water outlet 203 is communicated with the first water outlet 102, the chilled water filtered by the second filter 200 can reversely flow into the first filter 100 through the first water outlet 102 to flush impurities on the first filter screen 109, the impurities are conveyed to the drainage floor drain in the machine room through the sewage discharge pipeline 108 to be discharged, after one minute, the first reverse flushing electric valve 107 is automatically closed, meanwhile, the monitoring device 300 of the end heat exchanger triggers a fault reporting mechanism, sends a fault notification to operation and maintenance personnel for timely processing, restores the filter to an original state mainly including the first filter 100 and checks the state of the valve after the operation and maintenance personnel check and maintain, and closes the first electric valve after the first filter 100 finishes sewage disposal.

In addition, other configurations and functions of the filter according to the embodiment of the present invention are known to those skilled in the art, and are not described herein in detail to reduce redundancy.

It should be noted that the logic and/or steps represented in the flowcharts or otherwise described herein, such as an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.

It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.