CN217449206U

CN217449206U - On-line self-cleaning anti-leakage filter

Info

Publication number: CN217449206U
Application number: CN202221400370.0U
Authority: CN
Inventors: 王杰礼; 李冲; 王自成; 王天明
Original assignee: Weihai Frith Fluid Control Technology Co ltd
Current assignee: Weihai Frith Fluid Control Technology Co ltd
Priority date: 2022-06-07
Filing date: 2022-06-07
Publication date: 2022-09-20
Anticipated expiration: 2032-06-07

Abstract

The utility model discloses an online self-cleaning anti-leakage filter, which comprises a valve body, a valve cover and a flow guide cavity, and is characterized by also comprising a filter screen cylinder, a hydrodynamic filter screen cylinder dirt scraping device and a switch valve, wherein the filter screen cylinder is arranged between the valve body and a water inlet channel of a water inlet connecting pipe, the lower end of the water inlet channel is provided with a drain outlet, the drain outlet extends downwards and is connected with the switch valve, a water inlet at the upper end of the filter screen cylinder is communicated with the water inlet connecting pipe, the lower end of the filter screen cylinder is fixedly connected with a lower positioning seat fixed at the upper end of the drain outlet, a water outlet at the side wall of the filter screen cylinder is communicated with the flow guide cavity, and the hydrodynamic filter screen cylinder dirt scraping device is arranged in the filter screen cylinder, the utility model skillfully combines double-u structures of the filter and the anti-leakage valve into a single-u structure, reduces the fluid resistance by 60 percent, facilitates the dirt cleaning, and has more stable anti-leakage performance, the device has the advantages of compact structure, energy conservation, self-balancing, no on-site debugging, no on-site maintenance, convenient installation and the like.

Description

On-line self-cleaning anti-leakage filter

Technical Field

The utility model relates to a heating equipment technical field, specific online self-cleaning prevents leaking water filter that says so.

Background

Heat supply companies, serving as heat supply service enterprises which replace governments, have been subjected to scaling problems for a long time and form common social contradictions. The main manifestations are uneven cold and hot room temperature of users, heat dissipation by windowing hot clothes, and cotton-padded clothes worn at home cold clothes; the filter is not cleaned and the filter screen is not replaced timely, and dirt directly enters a user home; the user steals and releases hot water, and the system loses water seriously; the heat supply company knows little about the heat utilization condition of the user and is busy with fire fighting all day; the complaint rate of heat supply is high.

As is known, in the long-term heat supply process of the existing heat supply pipeline, dirt such as scale and corrosion impurities of the pipeline can be generated in the pipeline, and the dirt can be accumulated in the pipeline and flows into the heat utilization facility in the user room along with hot water without being cleaned for a long time, so that the heat quantity of the household heating is insufficient, the room temperature does not reach the standard, and the like, and meanwhile, in order to prevent the leakage of the water of the user heating from damaging the property of the user, a leakage-proof valve is usually installed on a water inlet pipeline 41, so a y-shaped filter valve and an a-shaped leakage-proof valve are usually installed on an inlet pipeline of each user by a heat supply enterprise, and the substantial deficiency of the structure is that: 1. for a long time of heat supply, impurities and other dirt in the pipeline can block the filter screen cylinder, so that the system resistance is increased, and even dry and crisp hot water cannot enter a user room. When cleaning the filter, usually, the valves at the two ends of the user control unit are manually closed, then the sealing covers at the bottom of the filter are opened, the filter screen cylinder is taken out for cleaning, then the cleaned filter screen cylinder is put in, and the sealing covers are covered. The cleaning method not only causes waste due to water flowing out of the heat supply pipeline, but also causes operators to irregularly clean the filter on the water inlet pipeline 41 of the user in the heating period, and most heat supply managers can drink and throw away the filter screen in a dove-quenching manner due to time, labor, water and heat consumption and environmental pollution caused by cleaning the filter, so as to meet the requirement of quick pain and short-time thermal comfort. 2. The y-type filter is usually installed with the filter net cylinder inclined on the water inlet line 41, and the water passing through the filter has large resistance and difficult cleaning. When passing through the A-type anti-leakage valve, the resistance is increased once again, so that the resistance of the whole system is increased, and the power waste is caused. 3. The equipment investment is large, the number of leakage points is large, and the accident potential is large.

Disclosure of Invention

The utility model aims at solving the deficiencies of the prior art, and providing an online self-cleaning anti-leakage filter which has the advantages of compact structure, low equipment investment cost, no maintenance, no disassembly for cleaning, few leakage points and convenient installation.

The utility model provides a technical scheme that its technical problem adopted is:

an online self-cleaning anti-leakage filter comprises a valve body 1, a valve cover 4 and a flow guide cavity 5, wherein the left end of the valve body 1 is provided with a water inlet connecting pipe 2, the right end of the valve body 1 is provided with a water outlet connecting pipe 3, the upper end of the valve body 1 is fixedly connected with the valve cover 4, the lower end of the valve body is connected with the flow guide cavity, a valve core cavity 8 is arranged between the valve cover 4 and the flow guide cavity 5, and an anti-leakage device is arranged in the valve core cavity 8. the filter is characterized by further comprising a filter screen cylinder, a hydrodynamic filter screen cylinder dirt scraping device and a switch valve, a filter screen cylinder 39 is arranged between the valve body and a water inlet channel of the water inlet connecting pipe 2, the lower end of the water inlet channel is provided with a drain outlet extending downwards and connected with the switch valve, a water inlet at the upper end of the filter screen cylinder 39 is communicated with the water inlet connecting pipe 2, the lower end of the filter screen cylinder 39 is fixedly connected with a lower positioning seat 51 fixed at the upper end of the drain outlet, and a side wall water outlet of the filter screen cylinder is communicated with the flow guide cavity 5, the hydrodynamic force type filter screen cylinder dirt scraping device is arranged in the filter screen cylinder 39 and comprises a scraping part, an upper connecting part 48 and/or a lower connecting part, a scraping edge 61 is arranged on the side wall of the scraping part, the scraping part is arranged along the axial direction of the filter screen cylinder, the scraping edge 61 and the inner wall of the filter screen cylinder are in linear rotatable contact through impact of water flow, the upper end of the scraping part is hinged with an upper positioning seat at the upper end of a water inlet channel through the upper connecting part 48 which is provided with rotatable connection, and/or the lower end of the scraping part is hinged with a lower positioning seat through the lower connecting part which is provided with rotatable connection, so that the scraping part can be used for generating rotation under impact of water flow to drive the scraping edge 61 to automatically remove impurities attached to the inner wall of the filter screen cylinder after filtration, and the filter screen cylinder can be prevented from being blocked by dirt after long-term filtration to influence heat supply, the device has the advantages of achieving the effects of maintenance-free and disassembly-free cleaning, reducing the resistance of the pipeline, reducing the installation times and the cleaning times, saving the energy and improving the heat supply efficiency.

The utility model discloses can be equipped with the sensor mounting hole on the valve body, the sensor mounting hole is linked together with the valve body inner chamber, install into water temperature and pressure sensor in the sensor mounting hole, it is connected with the control unit to intake temperature and pressure sensor to reach the effect that the integrated level is high, easy to assemble, gather the pressure in the valve body and intake the temperature through temperature and pressure sensor, and with above-mentioned information upload at the control unit, whether the indoor pipeline of rethread control unit judges the user according to the pressure and the temperature information of gathering leaks, and then has realized the effect of preventing leaking on line.

The ooff valve can adopt the electromagnetic switch valve, also can adopt electric switch valve to do benefit to and get rid of the impurity of filter screen section of thick bamboo 39 bottoms automatically through the control unit control ooff valve, reach the effect of online automatic discharge impurity.

The scraping part of the utility model can comprise at least one scraper, the end face of the scraper forms an included angle with the water flow impact direction, and the side face of the scraper is provided with a scraping edge 61;

when the scraper blade is more than two quantity, the scraper blade upper end more than two is through last go-between fixed connection, and/or the lower extreme is through lower go-between fixed connection, go up the go-between upper end and be equipped with rotatable coupling's last connecting portion 48, and/or the go-between lower extreme is equipped with rotatable coupling's lower connecting portion down to do benefit to further to improve the scraping rate of filter screen cylinder inner wall.

Strike off portion also can be rotation water wheels, rotation water wheels 45's blade axial sets up, the blade terminal surface is crossed with water flow impact direction, the blade lateral wall of rotation water wheels is equipped with scrapes sword 61.

Scraping portion can also be by rotation water wheels 45, scraper blade 46 and constitute, rotation water wheels 45 upper end is equipped with 1 at least scraper blade 46, the extension line axial setting in rotation water wheels axle center is followed to the scraper blade, a scraper blade lateral wall or both sides wall are equipped with scrapes sword 61 of scraping to filter screen cylinder inner wall, the scraper blade is fixed on rotation water wheels 45 terminal surface, rotation water wheels lower extreme is equipped with rotatable coupling's lower connecting portion, and the scraper blade upper end is equipped with rotatable coupling's last connecting portion 48 to do benefit to and strike off the filth of filtering screen cylinder inner wall through scraping sword 61 that rotation water wheels rotated under the impact of rivers on the drive scraper blade.

The surface shape of the scraper blade of the utility model is gradually distorted and deformed from the lower end to the upper end, the distortion direction of the scraper blade is the same as the rotation direction of the autorotation water wheel blade, so that the angle between the end surface of the hanging plate and the water flow is increased, the rotation speed of the autorotation water wheel is accelerated by impacting the scraper blade and the autorotation water wheel through the water flow, and the scraping rate of the inner wall of the filter screen cylinder is further improved;

scrape sword 61 and can adopt wear-resisting, corrosion-resistant, the big non-metallic material of elasticity to make, non-metallic material can adopt the rubber material, also can adopt the plastics material, can also adopt combined material to make.

Scrape sword 61 and can adopt the brush hair to do benefit to and carry out automatic clear through the filth of brush hair to filter screen section of thick bamboo 39 inner walls interception.

The ooff valve can adopt the electromagnetic switch valve, also can adopt electric switch valve to do benefit to and get rid of the impurity of filter screen section of thick bamboo 39 bottoms automatically through the control unit control switch valve, reach the effect of online automatic discharge impurity.

The utility model discloses can be in be equipped with case stroke micromatic setting between valve gap 4 and fairing 7, it includes screw rod 9, uide bushing 16 cover is outside the fairing, 16 lower part peripheries of uide bushing are through the sealed fixed connection of outer spacing flange 19 that is equipped with and leakage-proof intracavity wall, and the lower part hole is multiaspect cylindricality hole 25, and cooperates with the outer multiaspect post that the fairing outer wall was equipped with and realizes axial sliding connection, and the upper portion hole is connected with drive shaft 26 is sealed to be favorable to sealing the upper end of fairing once more through uide bushing 16; the screw rod 9 is in threaded connection with the rectifying sleeve, the lower end of the screw rod 9 is fixedly connected with the valve rod 10, the upper end of the screw rod is fixedly connected with the driving shaft 26, when the position of the rectifying sleeve is to be adjusted, the driving shaft 26 is connected with the power source, the driving shaft 26 drives the screw rod 9 to rotate, the rectifying sleeve on the screw rod axially displaces under the action of the outer multi-surface cylinder, and the effect of quickly adjusting the position of the rectifying sleeve is achieved.

The anti-leakage device of the utility model comprises a rectification sleeve 7, a driving shaft and a supporting plate 11, wherein the rectification sleeve 7 is positioned in an anti-leakage cavity at the center of a water inlet connecting pipe 2 and a water outlet connecting pipe 3, the axle center of the rectification sleeve 7 is vertical to the axle centers of the water inlet connecting pipe and the water outlet connecting pipe of a valve body 1, the upper part of the inner cavity of the rectification sleeve 7 is provided with a connecting hole section, the lower part is provided with a water inlet hole section, one side of the rectification sleeve 7 is provided with a water outlet through hole 12 for discharging water in the water inlet hole section of the rectification sleeve to a water outlet, the outer wall at the upper end of the rectification sleeve 7 is connected with the inner wall of the anti-leakage cavity in a sealing way, the outer wall at the lower part is connected with the side wall at the lower part of the water outlet connecting pipe through the supporting plate 11, the supporting plate can be fixedly connected with the rectification sleeve or can be fixedly connected with the side wall of the water outlet connecting pipe, when being fixedly connected with the rectification sleeve, the upper end of the supporting plate 11 is fixedly connected with a clapboard 15 so as to be beneficial to seal and isolate the diversion cavity 5 from the water outlet connecting pipe through the supporting plate, the valve rod 10 penetrates through the rectifying cavity and the valve core cavity 8, the upper end of the valve rod is fixedly connected with the driving shaft 26, the lower end of the valve rod penetrates through a water inlet on the bottom surface of the valve core cavity 8 and is hinged with a valve rod jack arranged on the bottom surface of the flow guide cavity, the valve rod is connected with the valve core 6 in series in a sliding mode, after the driving shaft 26 is connected with the rectifying sleeve in a sealing mode, the upper end of the valve rod extends upwards into the valve cover cavity so as to facilitate the driving shaft to rotate through a power source, the lower portion of the flow guide cavity 5 is communicated with one side of the filtering cavity 38, the partition plate 15 is positioned between the water inlet connecting pipe and the rectifying sleeve cavity, the periphery of the partition plate is fixedly connected with the inner cavity of the valve body in a sealing mode so as to facilitate the water in the water inlet connecting pipe to be guided into the filtering device, the flow guide cavity 5 is communicated with the valve core cavity 8 through the water inlet of the valve core cavity 8, the valve core 6 is positioned in the valve core cavity 8, and the periphery of the lower portion of the valve core 6 is in a sealing and is spliced with the inner wall of the lower end of the valve core cavity 8, the upper end covers the terminal surface and is greater than rectification cover inlet opening section area to reach the effect of preventing leaking, leak when heat supply user is indoor, make the velocity of water increase, water promotes the axial of valve core 6 along the valve rod and shifts up, plugs up rectification cover inlet opening section port down rapidly, has avoided the indoor other property losses that lead to because of leaking of user.

The utility model discloses can the intracavity wall axial of preventing letting out in the valve body 1 is equipped with interior boss 17 of upper limit position and interior boss 18 of lower limit position, interior boss 17 of upper limit position is located interior boss 18 top of lower limit position, outer limit flange is located between the interior boss of upper limit position and the interior boss of lower limit position, and it is spacing to go up to external limit flange through the interior boss of upper limit position, and it is spacing to move down of external limit flange through the interior boss of lower limit position.

The 6 lower parts of case can be the conical body, also can be the hemisphere, still can be the cylindricality body to do benefit to and carry out the effect of blocking to the water inlet of flowing back cover.

Still include the anti-rotation pin among the case stroke fine-tuning, 16 lower extreme circumference arrays of uide bushing are equipped with the anti-rotation pin, anti-rotation pin axial downwardly extending sets up, boss inner wall is equipped with the spacing recess of anti-rotation pin in the lower spacing, the uide bushing articulates the location in the valve body mutually through anti-rotation pin and spacing recess 22 to 16 circumference of restriction uide bushing are rotatory, reach and dismantle convenient, sealed effect of fixing a position.

The utility model also can be sleeved with a screw 9 locking device on the driving shaft between the guide sleeve 16 and the valve cover 4, which comprises a reset spring 21, a lock sleeve and a small limit shaft sleeve, the inner hole of the valve cover is axially provided with a straight tooth inner hole and a lock sleeve guide hole which can be locked from top to bottom, the upper end of the driving shaft 26 is fixedly provided with a coaxial straight gear 33, the driving shaft 26 is sleeved with the lock sleeve, the reset spring 21 and the small limit shaft sleeve from top to bottom, the lower end of the small limit shaft sleeve is fixedly connected with the guide sleeve 16, the inner hole of the small limit shaft sleeve is hermetically connected with the driving shaft 26 through a sealing ring, the lower end of the reset spring 21 is sleeved on the small limit shaft sleeve and is abutted against the upper end surface of the guide sleeve 16, the upper end is abutted against the upper top surface of a spring positioning hole of the lock sleeve 27, the structure of the lock sleeve is the same as the prior art, which is not repeated, the lock sleeve is positioned between the valve cover and the straight gear 33, during locking, under the tension action of the reset spring 21, the lock sleeve is abutted against the top surface of the lock sleeve guide hole of the valve cover through the top shoulder section, so that the jacking force in the vertical direction is realized, the periphery of the lock sleeve is meshed and fixed with the straight-tooth inner hole of the valve cover through the outer gear ring section, the inner tooth hole of the lock sleeve is meshed with the straight-tooth pinion on the driving shaft 26, so that the lock sleeve is locked on the valve cover, and circumferential locking is realized, the meshing of the inner tooth hole and the straight-tooth pinion on the driving shaft can also adopt the cylindrical polyhedral inner hole to be matched with the polygonal prism at the upper end of the driving shaft, and the upper end surface of the driving shaft 26 is equal to or lower than the upper end surface of the valve cover, so that the effect of avoiding the irrelevant person from rotating the driving shaft 26 is achieved; when the stroke of the valve core 6 needs to be adjusted, the lock sleeve is pressed downwards, the lock sleeve moves downwards in a state that the return spring 21 is compressed, when an outer gear ring section on the periphery of the lock sleeve is separated from a straight-tooth inner hole of the valve cover, locking is released, an inner tooth hole of the inner hole of the lock sleeve moves downwards along the straight-tooth gear 33, namely the upper end portion of the driving shaft 26 is exposed, then the driving shaft 26 rotates through the power source, the driving shaft 26 drives the screw rod 9 to rotate, the rectifying sleeve moves upwards or downwards under the guiding action of the guide sleeve 16, the stroke of the valve core 6 can be adjusted, after adjustment is completed, the power source is released, the lock sleeve resets under the tension action of the return spring 21, at the moment, the outer gear ring section on the periphery of the lock sleeve is meshed with the straight-tooth inner hole of the valve cover again, the inner tooth hole of the lock sleeve is meshed with the straight-tooth gear 33 on the upper portion of the driving shaft 26 again, and locking is achieved.

The utility model discloses can be in valve rod 10 middle part be equipped with spacing shaft shoulder 37, when adjusting the water supply in the water supply process, drive the fairing and shift up along the uide bushing through rotatory screw rod 9, make spacing shaft shoulder lower extreme face stretch out fairing inlet hole section lower extreme, guarantee that rivers are unobstructed to reach the effect of conveniently adjusting the water supply; when the adjustment is finished, the screw rod 9 is rotated reversely again, the rectifying sleeve is moved downwards along the guide sleeve, so that the lower end face of the limiting shaft shoulder is higher than the lower end face of the axial flow sleeve, and the valve core 6 is ensured to move upwards through the valve rod 10 to plug the water inlet section of the rectifying sleeve when the heating is leaked, thereby achieving the effect of preventing leakage.

The power supply can adopt electric drive, also can adopt manual drive, when manual rotation, the power supply comprises grafting handle and rotatory handle, grafting handle one end and rotatory handle fixed connection, another end terminal surface center axial is equipped with the spliced eye, when using, the spliced eye meshes with drive shaft 26's straight-teeth gear 33 mutually, the degree of depth of spliced eye is greater than the degree of depth of the straight-teeth hole of valve gap to do benefit to and carry out quick adjustment through the stroke of special key to case 6.

The utility model discloses can the lock sleeve upper end is equipped with the key constant head tank, the diameter of key constant head tank cooperatees with the external diameter of grafting handle to reach further quick adjustment's effect.

The utility model discloses still can the calibrated scale is installed to the valve gap up end, the calibrated scale up end is equipped with the scale concave curve, opens and marks the concave curve, closes and marks the concave curve, lock sleeve up end one side is equipped with the pointer recess that is used for accurate indication location, and through the numerical value of the scale concave curve that the pointer recess corresponds, can know the stroke size of case 6 fast.

The utility model discloses owing to adopt above-mentioned structure, make up into single u type structure with the two u type structures of filter and anti-leakage valve ingeniously, make the fluid resistance reduce 60% to make things convenient for the trash cleaning, the anti-leakage water ability is more stable. The device has the advantages of compact structure, energy (water, electricity and heat) saving, self-balancing, no on-site debugging, no on-site maintenance, convenient installation and the like.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of an embodiment of the hydrodynamic filter screen cartridge dirt scraping device in fig. 1.

Fig. 3 is a top view of fig. 2.

Fig. 4 is a schematic structural view of a second embodiment of the hydrodynamic filter screen cartridge dirt scraping device in fig. 1.

Fig. 5 is a schematic structural diagram of an embodiment of the present invention.

Reference numerals: the water supply device comprises a valve body 1, a water inlet connecting pipe 2, a water outlet connecting pipe 3, a valve cover 4, a flow guide cavity 5, a valve core 6, a rectifying sleeve 7, a valve core cavity 8, a screw rod 9, a valve rod 10, a supporting plate 11, a partition plate 15, a guide sleeve 16, an outer limiting flange 19, a return spring 21, an anti-rotation pin 24, a multi-surface cylindrical inner hole 25, a driving shaft 26, a straight gear 33, a limiting shaft shoulder 37, a filtering cavity 38, a filtering screen cylinder 39, a water return pipeline 42, a connecting pipeline 43, a self-rotation water wheel 45, a unit scraper 46, an upper connecting ring 47, an upper connecting part 48, a lower connecting part 49, an upper positioning seat 50, a lower positioning seat 51 and a scraping blade 61.

Detailed Description

The present invention will be described with reference to the accompanying drawings and examples.

As shown in the attached drawing, the online self-cleaning anti-leakage filter comprises a valve body 1, a valve cover 4 and a flow guide cavity 5, wherein the left end of the valve body 1 is provided with a water inlet connecting pipe 2, the right end of the valve body 1 is provided with a water outlet connecting pipe 3, the upper end of the valve body 1 is fixedly connected with the valve cover 4, the lower end of the valve body is connected with the flow guide cavity, a valve core cavity 8 is arranged between the valve cover 4 and the flow guide cavity 5, the valve core cavity 8 is provided with an anti-leakage device, the online self-cleaning anti-leakage filter is characterized by further comprising a filter screen cylinder, a hydrodynamic filter screen cylinder dirt scraping device and a switch valve, a filter screen cylinder 39 is arranged between the valve body and a water inlet channel of the water inlet connecting pipe 2, the lower end of the filter screen cylinder 39 is fixedly connected with a lower positioning seat 51 fixed at the upper end of the sewage outlet, a water outlet on the side wall of the filter screen cylinder 39 is communicated with the flow guide cavity 5, the hydrodynamic force type filter screen cylinder dirt scraping device is arranged in the filter screen cylinder 39 and comprises a scraping part, an upper connecting part 48 and/or a lower connecting part, a scraping edge 61 is arranged on the side wall of the scraping part, the scraping part is arranged along the axial direction of the filter screen cylinder, the scraping edge 61 and the inner wall of the filter screen cylinder are in linear rotatable contact through impact of water flow, the upper end of the scraping part is hinged with an upper positioning seat at the upper end of a water inlet channel through the upper connecting part 48 which is provided with rotatable connection, and/or the lower end of the scraping part is hinged with a lower positioning seat through the lower connecting part which is provided with rotatable connection, so that the scraping part can be used for generating rotation under impact of water flow to drive the scraping edge 61 to automatically remove impurities attached to the inner wall of the filter screen cylinder after filtration, and the filter screen cylinder can be prevented from being blocked by dirt after long-term filtration to influence heat supply, the device has the advantages of achieving the effects of maintenance-free and disassembly-free cleaning, reducing the resistance of the pipeline, reducing the installation times and the cleaning times, saving the energy and improving the heat supply efficiency.

when the scraper blade is more than two quantity, the scraper blade upper end more than two is through last go-between fixed connection, and/or the lower extreme is through lower go-between fixed connection, go up the go-between upper end and articulate mutually with last location seat through the last connecting portion 48 of rotatable coupling that is equipped with, and/or go-between lower extreme articulates with lower location seat through the lower connecting portion of rotatable coupling that is equipped with to do benefit to further to improve the scraping rate of filter screen cylinder inner wall.

Scraping portion can also be by rotation water wheels 45, scraper blade 46 and constitute, rotation water wheels 45 upper end is equipped with 1 at least scraper blade 46, the extension axial setting in rotation water wheels axle center is followed to the scraper blade, scraper blade lateral wall or both sides wall are equipped with scrapes sword 61 to what filter screen section of thick bamboo inner wall struck off, the scraper blade is fixed on rotation water wheels 45 terminal surface, rotation water wheels lower extreme is articulated mutually with lower location seat through rotatable coupling's that is equipped with lower connecting portion, and the scraper blade upper end is articulated mutually with last location seat through rotatable coupling's that is equipped with last connecting portion 48 to do benefit to and strike off the filth of filter screen section of thick bamboo inner wall through rotation water wheels rotation under the impact of rivers and drive the sword 61 of scraping on the scraper blade.

Scrape sword 61 and can adopt the brush hair to do benefit to and carry out automatic clear through the filth of brush hair to filter screen section of thick bamboo 39 inner wall interception.

The anti-leakage device of the utility model comprises a flow sleeve 7, a driving shaft and a supporting plate 11, wherein the flow sleeve 7 is positioned in an anti-leakage cavity at the center of a water inlet connecting pipe 2 and a water outlet connecting pipe 3, the axis of the flow sleeve 7 is vertical to the axes of the water inlet connecting pipe and the water outlet connecting pipe of a valve body 1, the upper part of the inner cavity of the flow sleeve 7 is provided with a connecting hole section, the lower part is provided with a water inlet hole section, one side of the flow sleeve 7 is provided with a water outlet through hole 12 for discharging the water in the water inlet hole section of the flow sleeve to a water outlet, the outer wall at the upper end of the flow sleeve 7 is hermetically connected with the inner wall of the anti-leakage cavity, the outer wall at the lower part is hermetically connected with the side wall at the lower part of the water outlet connecting pipe through the supporting plate 11, the supporting plate can be fixedly connected with the flow sleeve or can be fixedly connected with the side wall of the water outlet connecting pipe, when being fixedly connected with the flow sleeve, the upper end of the supporting plate 11 is fixedly connected with a clapboard 15 so as to be beneficial to hermetically isolate a flow guide cavity 5 from the water outlet connecting pipe through the supporting plate, the valve rod 10 penetrates through the rectifying cavity and the valve core cavity 8, the upper end of the valve rod is fixedly connected with the driving shaft 26, the lower end of the valve rod penetrates through a water inlet on the bottom surface of the valve core cavity 8 and is hinged with a valve rod jack arranged on the bottom surface of the flow guide cavity, the valve core 6 is connected in series in a sliding manner on the valve rod, after the driving shaft 26 is connected with the rectifying sleeve in a sealing manner, the upper end of the valve rod extends upwards into the valve cover cavity so as to facilitate the rotation of the driving shaft through a power source, the lower part of the flow guide cavity 5 is communicated with one side of the filter cavity 38, the partition plate 15 is positioned between the water inlet connecting pipe and the rectifying sleeve cavity, the periphery of the partition plate is fixedly connected with the inner cavity of the valve body in a sealing manner so as to facilitate the flow guide of water in the water inlet connecting pipe to the filter device, the flow guide cavity 5 is communicated with the valve core cavity 8 through the water inlet of the valve core cavity 8, the valve core 6 is positioned in the valve core cavity 8, the periphery of the lower part of the valve core 6 is in a sealing manner of being inserted with the inner wall of the lower end of the valve core cavity 8, the upper end covers the terminal surface and is greater than fairing inlet opening section area to reach the effect of preventing leaking, leak when heat supply user is indoor, make the water flow velocity increase, water promotes valve core 6 and shifts up along the valve rod axial, plugs up fairing inlet opening section lower port rapidly, has avoided the indoor other property losses that lead to because of leaking of user.

The utility model discloses can the intracavity wall axial of preventing letting out in the valve body 1 is equipped with interior boss 17 of spacing and interior boss 18 of spacing down, interior boss 17 of spacing is located interior boss 18 top of spacing down on, outer spacing flange is located between interior boss of spacing and the interior boss of spacing down, shifts up of the external spacing flange of boss and carries on spacingly through last spacing, shifts down of the external spacing flange of boss and carries on spacingly through spacing down.

Still include the anti-rotation pin among the case stroke fine-tuning, 16 lower extreme circumference arrays of uide bushing are equipped with the anti-rotation pin, anti-rotation pin axial downwardly extending sets up, boss inner wall is equipped with the spacing recess of anti-rotation pin in the lower spacing, the uide bushing articulates the location in the valve body mutually through anti-rotation pin and spacing recess 22 to 16 rotation in a circumferential direction of restriction uide bushing reach and dismantle convenient, sealed location's effect.

The utility model discloses can lock sleeve upper end is equipped with the key constant head tank, the diameter of key constant head tank cooperatees with the external diameter of grafting handle to reach further quick adjustment's effect.

When the utility model is installed, the water inlet connecting pipe and the water outlet connecting pipe of the leakage-proof filter screen cylinder of the utility model can be respectively butted with the water inlet pipeline 41, thereby saving the process of connecting the secondary water inlet pipeline 41, greatly simplifying the installation and greatly improving the working efficiency; in the water supply process, water enters the filter screen cylinder through the water inlet connecting pipe, then enters the valve body through the filter screen cylinder, and flows into the user room through the anti-leakage device and the water outlet connecting pipe in the valve body, so that the safety of indoor water supply of the user is guaranteed.

When the stroke of the valve core of the anti-leakage filter valve is adjusted, a worker holds the rotary handle of the special key and inserts the plug-in handle into the key positioning groove, so that the plug-in hole at the lower end of the plug-in handle is directly meshed with the straight gear, then the lock sleeve is pressed downwards and moves downwards in the state that the reset spring 21 is compressed, when the outer gear ring section at the periphery of the lock sleeve is separated from the straight gear inner hole of the valve cover, the circumferential locking of the lock sleeve is removed, the special key is rotated, the special key rotates the driving shaft 26 to drive the screw rod 9 to rotate, the rectifying sleeve moves upwards or downwards under the guiding action of the sealing sleeve 16, the function of adjusting the stroke of the valve core can be achieved, when the valve core moves downwards by 1mm, the worker only needs to rotate the special key by 30 degrees, namely, the pointer groove on the lock sleeve points to the scale concave line by 30 degrees, the special key is pulled upwards after the adjustment is finished, the lock sleeve resets under the tension action of the reset spring 21, at this time, the external gear ring section on the periphery of the lock sleeve is meshed with the straight-tooth inner hole of the valve cover again, and the inner tooth hole of the lock sleeve is meshed with the straight-tooth gear on the upper part of the driving shaft 26 again in a resetting manner, so that the screw rod 9 is prevented from rotating due to external force rotation and/or fluid driving force, and the locking effect is achieved.

When water supply is adjusted in the water supply process, the valve rod 10 is driven to move downwards through the screw rod 9, so that the lower end face of the limiting shaft shoulder extends out of the lower end of the water inlet hole section of the rectifying sleeve, smooth water flow is ensured, and the effect of conveniently adjusting water supply is achieved; when the adjustment is finished, the screw rod 9 is rotated reversely, the valve rod 10 is moved upwards, the lower end face of the limiting shaft shoulder is moved upwards into the axial flow sleeve, and therefore it is guaranteed that when the heating is leaked, the valve core is moved upwards through the valve rod 10 to block the water inlet section of the flow adjusting sleeve, and the effect of preventing leakage is achieved.

In the heat supply process, impurity and filth in filtering the water inlet pipe through filtering a net section of thick bamboo, avoid impurity or filth to get into the indoor heating pipeline of user, the portion of striking off among the filter screen filth scraping device in the filtering net section of thick bamboo is autogiration under the impact force effect of rivers, the rotatory sword 61 of scraping off the side is scraped the filth that has hung on filtering the net section of thick bamboo inner wall and is carried out the automation and strike off, has improved the temperature of the indoor heat supply pipeline of user greatly.

The control unit calculates the indoor differential pressure value by receiving water inlet pressure information uploaded by the temperature pressure sensor and return water pressure information uploaded by the return water pressure sensor, and when the differential pressure is gradually reduced and is smaller than a set value, the situation that dirt in the filter is too much is indicated, and at the moment, the control unit can instruct the electric blowdown valve to blowdown, so that the scraped dirt flows into a return water pipeline through the switch valve, the connecting pipeline and the one-way three-way valve, is discharged through the return water pipeline 42, and is prevented from flowing back to a user pipeline through the one-way three-way valve 44;

when the pressure difference is gradually reduced and is smaller than a set value, the situation that the dirt in the filter screen cylinder of the online self-cleaning water drainage preventing filter is too much is shown, and at the moment, the control unit can instruct the switch valve to drain the dirt, so that the scraped dirt flows into the water return pipeline through the switch valve, the connecting pipeline and the one-way three-way valve, is discharged through the water return pipeline 42, and is prevented from flowing back to a user pipeline through the one-way three-way valve 44;

when the pressure difference value calculated by the control unit exceeds a set value, indicating that the sewage discharge is finished, and instructing the switch valve to be automatically closed by the control unit;

when the control unit knows that the pressure difference value is suddenly too low (nearly zero), the control unit judges that water drainage exists indoors and instructs the intelligent flow regulating valve to automatically close;

when the drainage point is removed, for example, a user drains water on an indoor pipeline, at the moment, the user closes a valve in the indoor pipeline, the intelligent flow control valve and the online self-cleaning anti-leakage filter can automatically reset, and normal heating is recovered; if the internal pressure difference value is too low (or nearly zero) in the set time, the normal heating cannot be recovered, the control unit uploads the information to the heating main station through the network, and an alarm is given in the heating main station system to indicate that water drainage occurs at the position and the on-site maintenance is needed, for example, when no person exists in a house, an indoor pipeline is broken suddenly.

The noun explains: the utility model discloses in "online" means in the pipeline circuit, need not dismantle the meaning of pipeline.

The online self-cleaning method refers to self-cleaning in a pipeline without disassembling a pipeline valve.

Claims

1. An online self-cleaning anti-leakage water filter comprises a valve body, a valve cover and a flow guide cavity, wherein a water inlet connecting pipe is arranged at the left end of the valve body, a water outlet connecting pipe is arranged at the right end of the valve body, the upper end of the valve body is fixedly connected with the valve cover, the lower end of the valve body is connected with the flow guide cavity, a valve core cavity is arranged between the valve cover and the flow guide cavity, and an anti-leakage device is arranged in the valve core cavity. Hydrodynamic force formula filter screen section of thick bamboo filth scraping device is including scraping portion, last connecting portion and/or lower connecting portion, it is equipped with scrapes the sword to scrape the lateral wall, it sets up along filter screen section of thick bamboo axial to scrape portion, scrape the sword and filter screen section of thick bamboo inner wall and pass through the impact rotatable coupling of rivers linearly, it is articulated mutually with last reference point on the inhalant canal through the upper end of rotatable coupling's that is equipped with to scrape portion upper end, and/or the lower extreme is articulated mutually with lower reference point through rotatable coupling's that is equipped with lower connecting portion.

2. The on-line self-cleaning anti-leakage filter of claim 1, wherein the valve body is provided with a sensor mounting hole, the sensor mounting hole is communicated with the inner cavity of the valve body, the sensor mounting hole is internally provided with a water inlet temperature and pressure sensor, and the water inlet temperature and pressure sensor is connected with the control unit.

3. The on-line self-cleaning anti-leakage water filter according to claim 2, wherein the switch valve is an electromagnetic switch valve or an electric switch valve.

4. The on-line self-cleaning anti-leakage filter of claim 3, wherein the scraping part comprises at least one scraper, the end surface of the scraper forms an included angle with the water flow impact direction, and the side surface of the scraper is provided with a scraping edge;

or when the number of the scraping plates is more than two, the upper ends of the more than two scraping plates are fixedly connected through the upper connecting ring, and/or the lower ends of the more than two scraping plates are fixedly connected through the lower connecting ring, the upper end of the upper connecting ring is provided with an upper connecting part which can be rotatably connected, and/or the lower end of the lower connecting ring is provided with a lower connecting part which can be rotatably connected.

5. The on-line self-cleaning anti-leakage filter according to claim 3, wherein the scraping part is a self-rotating water wheel, blades of the self-rotating water wheel are axially arranged, end faces of the blades intersect with a water flow impact direction, and side walls of the blades of the self-rotating water wheel are provided with scraping edges.

6. The on-line self-cleaning anti-leakage filter according to claim 3, wherein the scraping portion is composed of a rotation water wheel and scrapers, at least 1 scraper is disposed at the upper end of the rotation water wheel, the scrapers are axially disposed along the extension line of the axis of the rotation water wheel, one or two side walls of each scraper are provided with scraping edges for scraping the inner wall of the filter screen cylinder, the scrapers are fixed on the end surface of the rotation water wheel, the lower end of the rotation water wheel is provided with a lower connecting portion which can be rotatably connected, and the upper end of each scraper is provided with an upper connecting portion which can be rotatably connected.

7. An on-line self-cleaning anti-leakage filter according to claim 4, 5 or 6, wherein the scraping edge is made of non-metallic material with high wear resistance, corrosion resistance and elasticity.

8. The on-line self-cleaning water leakage preventing filter as recited in claim 7, wherein the scraping edge is a bristle.

9. The on-line self-cleaning water leakage preventing filter as claimed in claim 4, 5, 6 or 8, wherein the surface shape of the scraper is gradually distorted from the lower end to the upper end, and the distortion direction of the scraper is the same as the rotation direction of the blades of the spinning water wheel.

10. The on-line self-cleaning anti-leakage filter according to claim 1, 2, 3, 4, 5, 6 or 8, wherein a valve core stroke fine-adjusting device is arranged between the valve cover and the rectifying sleeve, the valve core stroke fine-adjusting device comprises a screw rod and a guide sleeve, the guide sleeve is sleeved outside the rectifying sleeve, the periphery of the lower part of the guide sleeve is fixedly connected with the inner wall of the anti-leakage cavity in a sealing way through an outer limiting flange 19, the inner hole of the lower part is a multi-surface cylindrical inner hole and is matched with an outer multi-surface cylindrical body arranged on the outer wall of the rectifying sleeve to realize axial sliding connection, and the inner hole of the upper part is connected with the driving shaft in a sealing way; the screw rod is in threaded connection with the rectifying sleeve, the lower end of the screw rod is fixedly connected with the valve rod, and the upper end of the screw rod is fixedly connected with the driving shaft.

11. The on-line self-cleaning anti-leakage filter of claim 10, wherein the anti-leakage device comprises a flow sleeve, a driving shaft and a supporting plate, the flow sleeve is located in an anti-leakage cavity at the center of the water inlet connecting pipe and the water outlet connecting pipe, the axis of the flow sleeve is perpendicular to the axes of the water inlet connecting pipe and the water outlet connecting pipe of the valve body, the inner cavity of the flow sleeve is provided with a connecting hole section at the upper part and a water inlet hole section at the lower part, one side of the flow sleeve is provided with a water outlet through hole for discharging the water in the water inlet hole section of the flow sleeve to the water outlet, the outer wall of the upper end of the flow sleeve is hermetically connected with the inner wall of the anti-leakage cavity, the outer wall of the lower part is hermetically connected with the side wall of the lower part of the water outlet connecting pipe through the supporting plate, the supporting plate is fixedly connected with the flow sleeve or the side wall of the water outlet connecting pipe, and when being fixedly connected with the flow sleeve, the upper end of the supporting plate is fixedly connected with the baffle plate, the valve rod penetrates through the rectifying cavity and the valve core cavity, the upper end of the valve rod is fixedly connected with the driving shaft, the lower end of the valve rod penetrates through a water inlet in the bottom surface of the valve core cavity and is hinged to a valve rod jack in the bottom surface of the flow guide cavity, the valve core is connected with the valve rod in series in a sliding mode, the upper end of the driving shaft is upwards extended into the valve cover cavity after the driving shaft is connected with the rectifying sleeve in a sealing mode, the lower portion of the flow guide cavity is communicated with one side of the filtering cavity, the partition plate is located between the water inlet connecting pipe and the rectifying sleeve cavity, the periphery of the partition plate is fixedly connected with the inner cavity of the valve body in a sealing mode, the flow guide cavity is communicated with the valve core cavity through the water inlet in the valve core cavity, the valve core is located in the valve core cavity, the periphery of the lower portion of the valve core is in sealing insertion connection with the inner wall of the lower end of the valve core cavity, and the covering end face of the upper end is larger than the area of the water inlet hole of the rectifying sleeve.

12. The on-line self-cleaning water leakage prevention filter of claim 11, wherein the lower portion of the valve body is a cone, a hemisphere or a cylinder.

13. The on-line self-cleaning water leakage prevention filter of claim 12, wherein a screw locking device is sleeved on the driving shaft between the guide sleeve and the valve cover.

14. The on-line self-cleaning anti-leakage filter according to claim 11, 12 or 13, wherein a limiting shaft shoulder is arranged in the middle of the valve rod, and when water supply is adjusted in the water supply process, the rectifying sleeve is driven to move upwards along the guide sleeve by rotating the screw rod, so that the lower end surface of the limiting shaft shoulder extends out of the lower end of the water inlet section of the rectifying sleeve, and the water flow is ensured to be smooth; when the adjustment is finished, the screw rod is reversely rotated again, the rectifying sleeve moves downwards along the guide sleeve, so that the lower end face of the limiting shaft shoulder is higher than the lower end face of the axial flow sleeve, and the valve core is ensured to move upwards through the valve rod to block the water inlet hole section of the rectifying sleeve when the heating is leaked.