CN115124119A - Vertical magnetic filter - Google Patents
Vertical magnetic filter Download PDFInfo
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- CN115124119A CN115124119A CN202210817483.9A CN202210817483A CN115124119A CN 115124119 A CN115124119 A CN 115124119A CN 202210817483 A CN202210817483 A CN 202210817483A CN 115124119 A CN115124119 A CN 115124119A
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- permanent magnet
- magnetic filter
- barrel
- cylinder body
- fluid
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
- C02F1/481—Treatment of water, waste water, or sewage with magnetic or electric fields using permanent magnets
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
Abstract
A vertical magnetic filter comprising: the cylinder body is vertically arranged and comprises an upper cylinder body and a lower cylinder body which are connected, and a connecting pipe is arranged on one side of the top of the upper cylinder body; the connecting pipe is connected to the multi-way and is internally provided with a flow guide wall; the bottom of the lower cylinder is provided with a step-shaped bearing platform, the upper cylinder is provided with a cylinder pressing part extending to the inner cavity, and the upper cylinder is provided with a step structure; the positioning piece is arranged on the bearing platform; the top of the filter screen is upwards contacted with the step surface of the pressing barrel part, and the bottom of the filter screen is downwards contacted with the bearing platform of the lower barrel; the permanent magnets and the spacer rings are isolated; the protective sleeve is connected to the controller shell so as to isolate the interior of the protective sleeve from fluid, and the closed end extends into the filter screen and wraps the permanent magnet; the heating body heats after being electrified, and heats the temperature of the inner cavity of the permanent magnet to be above the Curie point. The invention utilizes the Curie point characteristic of the permanent magnet, switches the permanent magnet between ferromagnetism and paramagnetism by heating, and realizes the cleaning of impurities under the condition of not disassembling the magnetic filter.
Description
Technical Field
The invention relates to the field of magnetic filters, in particular to a vertical magnetic filter.
Background
The magnetic filter is installed at the front end of the water replenishing valve of the wall-mounted furnace, is used for taking charge of circulation of water in a heating system, and has certain corrosivity on the inner walls of heating radiators and pipelines due to the fact that the water contains impurities and has certain weak acidity. The magnetic filter has the characteristics of small volume, light weight, convenient installation and operation and the like.
Most radiators used in the current market are made of cast iron, sand mold residues and other impurities in the radiators cannot be completely flushed when in engineering installation, in addition, water in a heating system is always in closed circulation, and a heating part of a boiler does not have a filter screen, so that rust residues in the radiators and pipelines and impurities of water can enter the heat exchanger again through a circulating water pump of a wall-mounted boiler, the impurities can be continuously decomposed at high temperature, and then a part of the impurities is changed into scale to be attached to the inner wall of the heat exchanger, and the pipe diameter is gradually thinned after long time; finally, the reduction of the pipe diameter changes the flow speed and the radial flow of the fluid water, so that the load of the circulating water pump is further increased, the rotating speed of the circulating water pump of the wall-mounted furnace is reduced and even the circulating water pump is blocked after long-term operation, and the service life of the wall-mounted furnace is seriously influenced.
The traditional magnetic filter is structurally characterized in that a cylindrical permanent magnet is arranged at the center of the traditional magnetic filter, when liquid slurry flows through the traditional magnetic filter, iron impurities in the liquid slurry can be adsorbed on the cylindrical permanent magnet, and after the cylindrical permanent magnet is filled with the iron impurities, if the cylindrical permanent magnet is not cleaned in time, the adsorption effect of the cylindrical permanent magnet can be influenced. However, the magnetic field of the permanent magnet exists permanently, magnetic impurities are always attached to the surface of the permanent magnet, the cylindrical permanent magnet needs to be taken out integrally during cleaning, the adsorbed magnetic impurities are scraped and then installed back into the cylindrical body, the cleaning process is complex, and repeated disassembly causes the sealing performance of the magnetic filter to be reduced.
Disclosure of Invention
In light of the problems raised by the background art, the present invention provides a vertical magnetic filter, which will be further described below.
A vertical magnetic filter comprising:
the cylinder body is vertically arranged and comprises an upper cylinder body and a lower cylinder body which are connected, a connecting pipe is arranged on one side of the top of the upper cylinder body, an inner pipe communicated with the inner cavity of the cylinder body is arranged in the connecting pipe, and the end part of the inner pipe extends into the flow guide wall and is matched with the flow guide wall;
a plurality of channels, a connecting pipe is connected to the plurality of channels, a flow guide wall is arranged in the channels, two adjacent connecting ends of the plurality of channels are communicated and respectively used as a water inlet end and a side outlet end, the side outlet end is connected with the connecting pipe, a backflow channel is formed between the flow guide wall and the inner wall of the side outlet end of the plurality of channels,
the blowoff valve is connected on the lower cylinder body and communicated with the inner cavity of the cylinder body;
the bottom of the lower cylinder body is provided with a step-shaped bearing platform, the upper cylinder body is provided with a cylinder pressing part extending to the inner cavity, and the end part of the cylinder pressing part is also provided with a step structure;
further comprising:
the positioning piece is arranged on the bearing platform;
the top of the filter screen is upwards contacted with the step surface of the pressing barrel part, and the bottom of the filter screen is downwards contacted with the bearing platform of the lower barrel;
the permanent magnets are annular and are isolated by the spacer rings;
the protective sleeve is connected to the controller shell to isolate the interior of the protective sleeve from fluid, and the closed end extends into the filter screen and wraps the permanent magnet;
the heating body heats after being electrified, and heats the temperature of the inner cavity of the permanent magnet to be above the Curie point.
Preferably, the positioning part comprises a circular ring disc, a small-diameter cylinder and a large-diameter cylinder are respectively connected to the upper part and the lower part of the circular ring disc, the diameter of the small-diameter cylinder is smaller than that of the large-diameter cylinder, the bottom end of the filter screen is provided with a bent enlarged diameter part, the bent part is pressed on the circular ring disc and used for positioning the positioning part on the bearing platform, and the upper space and the lower space are communicated through the circular ring disc, so that impurities in the filter screen can be deposited on a drain valve at the lower part; the small-diameter cylinder, the large-diameter cylinder, the pressing cylinder and the bearing platform are in contact with the inside and the outside of the filter screen respectively, and the impact resistance stability of the inside and the outside of the filter screen is improved.
Preferably, the small-diameter cylinder and the large-diameter cylinder are comb-shaped, and the small-diameter cylinder and the large-diameter cylinder are provided with spaced overflowing intervals; so that the fluid at the positioning part can flow out of the filter screen through the flow passing interval and the filter screen.
Preferably, the inner annular surface of the circular ring disc of the positioning piece is provided with a radial convex part, and the radial convex part extends to contact with the side wall of the protective sleeve; the fluid impact resistance protection sleeve is used for limiting two ends of the protection sleeve, fluid directly acts on the protection sleeve after rushing into the inner cavity of the cylinder body from the inner tube, and the stability of the protection sleeve against fluid impact is ensured due to the limitation at the two ends of the protection sleeve.
Preferably, the Curie temperature of the permanent magnet is 103 ℃ higher than the stability of the heating and ventilating fluid, the ferromagnetism of the permanent magnet during normal operation is maintained, the temperature of the permanent magnet during paramagnetism is slightly higher than the boiling point of fluid water, and the vaporization of the fluid is avoided through the heat insulation effect.
An operation method for removing magnetic impurities by a magnetic filter is provided: before the heating element is electrified to generate heat, the magnetic filter is isolated in advance, after the isolation, air is filled in the cylinder, the air has a heat insulation effect, the heating element can enable the temperature in the cavity to rise to be above the Curie point in a short time, meanwhile, because the blowoff valve is in an open state, the air in the cylinder is communicated with the outside and the air pressure is constant, the permanent magnet embodies paramagnetism, magnetic impurities adsorbed on the surface of the protective sleeve fall on the material receiving plate, then a valve of a water inlet pipeline is opened, fluid is filled into the magnetic filter, the fluid flushes the magnetic impurities on the material receiving plate out of the blowoff valve, and meanwhile, the fluid contacts the protective sleeve to cool the protective sleeve and the inner cavity; after the gas is exhausted, the water inlet pipe valve is opened, the water outlet pipe valve is kept closed, the drain valve is closed, and the fluid entering the cylinder body presses the gas in the cylinder body out of the exhaust valve until the cylinder body is filled with the fluid.
Preferably, a heat insulation layer is arranged between the permanent magnet and the protective sleeve; the heat energy used for cutting off the inner cavity of the permanent magnet is conducted outwards, so that the temperature of the inner cavity is accelerated, and the thermal deformation amplitude of the protective sleeve is reduced.
Providing another operation method for removing magnetic impurities by a magnetic filter: before the heat-generating body circular telegram generates heat, keep apart the magnetic filter in advance equally, based on the existence of heat insulation layer, no longer need discharge the fluid in the barrel, the heat-generating body can make the temperature rise to above the curie point in the cavity in shorter time, the magnetic impurities who adsorbs on protective sheath surface falls on connecing the flitch and partially suspends in the fluid, then open the valve and the blowoff valve of inlet channel, the inlet channel pours into the fluid into the magnetic filter, the fluid will connect on the flitch and the magnetic impurities who suspends in the fluid from the blowoff valve parcel to carry and rush out.
Preferably, the protective sleeve is made of stainless steel; the stainless steel protective sleeve is low in cost, not prone to rusting and corrosion in fluid, high in strength, and capable of ensuring enough strength when the temperature of gas in the inner cavity is increased to the Curie point from the normal temperature, and the gas pressure is increased to be about.times.
Preferably, a temperature control probe is further disposed in the inner cavity formed by the permanent magnet, and is used for sensing the temperature of the inner cavity and feeding the temperature back to the controller to control the heating power of the heating element.
Preferably, a magnetic field intensity sensor is further arranged in the cylinder and used for sensing the magnetic field intensity change of the permanent magnet, the magnetic field intensity sensor adopts a split type design, and a magnetic induction probe of the magnetic field intensity sensor is arranged on the compression cylinder of the upper cylinder and is arranged at the magnetic pole of a certain permanent magnet. When the magnetic induction probe senses that the magnetic field intensity is lower than a set value, a cleaning signal is sent outwards, the magnetic field intensity sensor is also used for being matched with the temperature control probe, and when the sensed magnetic field intensity is lower than the set value, the power supply of the heating body is controlled to be cut off.
Optionally, a vent valve is connected to the top of the cylinder.
Preferably, the multi-way is a four-way pipe and is respectively connected with the exhaust device, the water inlet pipeline, the water outlet pipeline and the magnetic filter.
If the exhaust device is an exhaust valve, the exhaust valve is connected with the highest connecting end of the cross joint, the water inlet pipeline is connected with the lowest connecting end, and the water outlet pipeline and the magnetic filter are connected with the two lateral connecting ends; the working mode of exhausting at the highest position and discharging fluid from the lower inlet side is realized, and the exhaust effect is the best in the state;
if exhaust apparatus is the stifled cap of exhaust, the side direction link at the cross is connected to the magnetic filter, and water inlet pipe connects at the lowest department link, and stifled cap of exhaust, outlet pipe connect in highest department link or side direction link. The stop valve has the function of forming a short section of cavity at the water outlet end of the top of the four-way valve, so that more gas is prevented from accumulating in the cavity; the working modes of lateral exhaust and downward fluid inlet and upward fluid outlet are realized, in this state, the trend of the fluid accords with the optimal trend of the pipeline, the pipeline is not bent, the fluid has no impact on the pipe wall, the stability of the pipeline is good, but the exhaust mode of the exhaust blocking cap is pressurized water exhaust, and the fluid is consumed.
Has the advantages that: compared with the prior art, the invention utilizes the Curie point characteristic of the permanent magnet, switches the permanent magnet between ferromagnetism and paramagnetism by heating, realizes the cleaning of impurities under the condition of not disassembling the magnetic filter, removes the magnetic impurities and the non-magnetic impurities at one time, and can independently start the blow-down valve to clean the non-magnetic impurities according to the actual condition; and a plurality of installation modes are provided, so that the device is suitable for various installation environment requirements.
Drawings
FIG. 1: the invention relates to a magnetic filter and a structural sectional view with a tee joint as a multi-way;
FIG. 2: a structural plan view of the positioning piece;
FIG. 3: the structure at A in FIG. 1 is enlarged schematically;
FIG. 4: the invention relates to a magnetic filter and a structural cross-sectional view with a multi-way cross joint;
in the figure: the device comprises a barrel body 1, an upper barrel body 101, a lower barrel body 102, a connecting pipe 103, an inner pipe 104, a bearing platform 105, a barrel pressing part 106, a connecting cap 2, a multi-way pipe 3, a flow guide wall 301, a water inlet end 302, a side outlet end 303, a water outlet end 304, a return channel 305, a positioning piece 4, an annular disc 401, a small-diameter barrel 402, a large-diameter barrel 403, an overflowing interval 404, a radial convex part 405, a filter screen 5, a blow-off valve 6, a permanent magnet 7, a spacer ring 8, a protective sleeve 9, a heating body 10, a controller 11, an insulating layer 12, a magnetic induction probe 13, an exhaust valve 14 and a stop valve 15.
Detailed Description
A specific embodiment of the present invention will be described in detail with reference to the accompanying drawings.
Referring to the attached drawing 1, a vertical magnetic filter for filtering magnetism and non-magnetic impurity in the fluid, including the vertical barrel 1 who is regarded as the major structure of placing, barrel 1 includes threaded connection's last barrel 101 and lower barrel 102, and last barrel 101 top one side is provided with connecting pipe 103, and connecting pipe 103 is connected to a link that leads to 3 pipe fittings through connecting cap 2 threaded connection more, leads to 3 built-in water conservancy diversion walls 301 more, and water conservancy diversion wall 301 will lead to two adjacent link intercommunications more, regard as respectively into water end 302 and side outlet 303. The connecting pipe 103 is connected to the side outlet 303, a return channel 305 is formed between the flow guide wall 301 and the inner wall of the side outlet of the multi-channel 3, fluid to be filtered enters the cylinder body from the water inlet end, flows out of the water outlet 304 of the multi-channel from the return channel 305 after being filtered, and finally flows back to the wall-mounted furnace. An inner pipe 104 communicated with the inner cavity of the cylinder body is arranged in the connecting pipe 103, the pipe diameter of the inner pipe 104 is equal to the inner diameter of the flow guide wall 301, when the connecting pipe 103 is connected to the side outlet end 303, the end part of the inner pipe 104 extends into the flow guide wall 301 and is matched with the flow guide wall to form a fluid passage from the water inlet end 302 to the inner cavity of the cylinder body 1.
Referring to fig. 2, a stepped bearing platform 105 is arranged at the bottom of the lower barrel 102, a positioning part 4 is arranged at the bearing platform 105, a filter screen 5 is further arranged in the barrel, the upper barrel 101 is provided with a barrel pressing part 106 integrally extending to the inner cavity, a step structure is also arranged at the end part of the barrel pressing part 106, and the filter screen 5 is fixed in the barrel 1, specifically: the top of the filter screen 5 contacts the step surface of the pressure cylinder part 106 upwards, the bottom contacts the bearing platform 105 of the lower cylinder 102 downwards, the side surfaces of the top and the bottom of the filter screen 5 respectively contact the side wall surfaces of the pressure cylinder part 106 and the bearing platform 105, complete position limitation in the horizontal direction and the vertical direction is realized, and the position of the filter screen is stable under the impact of fluid.
The filter screen 5 is densely distributed with screen holes for intercepting impurities, fluid impacts on the filter screen and flows out of the filter screen through the screen holes, and the wrapped impurities are intercepted in the filter screen. A blow-down valve 6 is connected below the side end of the cylinder body 1, the blow-down valve 6 is communicated with the inner space of the filter screen 5, impurities intercepted by the filter screen enter and are accumulated at the blow-down valve 6 under the flushing of fluid, and the blow-down valve can be opened periodically for blow-down treatment. The volume of the impurity that the filter screen can be held back is relevant with the aperture of sieve mesh, and in practice, there are magnetic impurity such as a small amount of iron fillings in the impurity, and its characterized in that is small, can't filter through the aperture that reduces the sieve mesh, and simultaneously, the effect of sieve mesh still lies in puncturing the bubble, and the sieve mesh destroys bubble membrane surface stress with the bubble effect, and the bubble breaks the back and releases the gas of inner chamber, and gas accumulation is at the barrel top, and the discharge valve of accessible setting is discharged.
The positioning part 4 comprises a circular ring disc 401, a small-diameter cylinder 402 and a large-diameter cylinder 403 are respectively connected to the upper part and the lower part of the circular ring disc 401, the diameter of the small-diameter cylinder 402 is smaller than that of the large-diameter cylinder 403, the bottom end of the filter screen 5 is provided with a bent diameter expansion part 501, the bent part is pressed on the circular ring disc 401 and used for positioning the positioning part 4 on the bearing platform 105, the upper space and the lower space of the circular ring disc 401 are communicated, and impurities in the filter screen can be deposited on a drain valve at the lower part. The small-diameter barrel 402, the large-diameter barrel 403, the barrel pressing part 106 and the step surface of the bearing platform 105 are respectively contacted with the inside and the outside of the filter screen, so that the impact resistance and the stability of the inside and the outside of the filter screen are improved.
The small-diameter tube 402 and the large-diameter tube 403 are comb-shaped, that is, the small-diameter tube 402 and the large-diameter tube 403 are provided with flow passing intervals 404 at intervals, so that the fluid at the positioning member 4 can flow out of the filter screen through the flow passing intervals 404 and the filter screen.
Set up permanent magnet 7 in the filter screen among the prior art and adsorb magnetic impurities such as iron fillings, fix magnetic impurities from the fluid and get off, the concrete scheme is: be provided with a plurality of permanent magnets 7, keep apart through spacer ring 8 between the permanent magnet 7, arbitrary permanent magnet 7 all has the N utmost point and the S utmost point two poles of the earth, and according to common sense, magnetic pole department magnetic strength is the biggest, through a plurality of spaced permanent magnets 7 that set up, forms the comparatively even magnetic field of magnetic strength in the filter screen, increases the adsorption efficiency to magnetic field impurity in the fluid.
It should be noted that, in the prior art, the plurality of permanent magnets 7 are annular permanent magnets which are sleeved on the rod in series, the copper sleeves are wrapped outside the permanent magnets 7, the copper sleeves have the characteristic of not being magnetized, and in the heating and ventilation fluid, copper alloy is the most suitable main material, because copper ions have a certain sterilization effect, bacteria cannot generate antibodies, and bacteria cannot be bred, copper or copper alloy is adopted in the prior art. However, as explained in the background art, the magnetic field of the permanent magnet 7 is constantly present, and the fluid cannot wash away the magnetic impurities attached to the magnetic field, so that the present embodiment eliminates or reduces the magnetic field strength to a low value state when the magnetic impurities need to be cleaned by means of temperature rise, so that the fluid can wash and entrain the impurities to the blowoff valve.
Specifically, the permanent magnet 7 is a temperature-sensitive magnet having a curie temperature of 103 ℃, and the curie temperature or magnetic transition point is a temperature at which a material can be changed between a ferromagnetic body and a paramagnetic body, that is, a phase transition temperature at which the ferromagnetic body is changed from a ferromagnetic phase to a paramagnetic phase, or a transition temperature at which a two-stage phase transition occurs.
In this embodiment, the curie temperature of the permanent magnet 7 is 103 ℃, the curie temperature is low, the curie temperature is easy to reach and is slightly higher than the boiling point of fluid water, and the phenomenon that the volatilization of the fluid is aggravated to increase the pressure in the magnetic filter is avoided. After the temperature of the environment reaches 103 ℃, the permanent magnet 7 shows paramagnetism, and the adsorption force to magnetic impurities is ignored.
Referring to fig. 1 and 3, in an embodiment, a protective sleeve 9 is sleeved outside a permanent magnet 7, the permanent magnet is a magnetic ring, a cavity is formed in the protective sleeve, a heating element 10 is arranged in the cavity, the heating element 10 is electrically connected with a controller 11 at the top of an upper barrel 101, the heating element 10 heats after being powered on, the temperature of the cavity is heated to be above the curie point of the permanent magnet, the permanent magnet embodies paramagnetism, and magnetic impurities adsorbed on the surface of the protective sleeve 9 are separated from the surface of the protective sleeve under the action of self weight and fluid scouring after losing magnetic force.
In this embodiment, before heat-generating body 10 circular telegram generates heat, keep apart the magnetic filter in advance, close the valve on water inlet pipe and the outlet pipe way and can keep apart the magnetic filter, and emit the fluid in the magnetic filter from the blowoff valve after keeping apart, the purpose is avoiding the fluid to heat, be good heat conduction based on permanent magnet and protective sheath, and the fluid is medium water, the specific heat capacity is big, it is difficult to promote protective sheath inner chamber temperature to on the curie point fast to heat the back after heat-generating body 10 generates heat, and, because the curie point is higher than the boiling point of water, at the in-process of generating heat, the fluid has partial vaporization to lead to the increase of barrel internal pressure, the risk that the barrel exists and bursts. After the fluid in the cylinder is isolated and exhausted, the air is in the cylinder, according to the normal principle, the air has a heat insulation effect, the heating body can enable the temperature in the cavity to rise to be above the Curie point in a short time, meanwhile, the blowoff valve is in an opening state, the air in the cylinder is communicated with the outside, the air pressure is constant, the permanent magnet 7 embodies paramagnetism, magnetic impurities adsorbed on the surface of the protective sleeve 9 fall to the blowoff valve, then a valve of a water inlet pipeline is opened, the fluid is filled into the magnetic filter, the impurities are flushed out from the blowoff valve by the fluid, meanwhile, the fluid is contacted with the protective sleeve, and the protective sleeve and the inner cavity are cooled.
It should be noted that, the internal gas of fluid will increase the internal pressure of the internal pipeline, will aggravate the oxidation and corrosion of the components and the pipeline, and the gas is discharged outwards through the exhaust valve at the top in the working process, but in this embodiment, the blowoff valve needs to be opened when removing the magnetic impurities, so as to discharge the impurities outwards and maintain the internal pressure of the cylinder to be constant, and the external air must enter the cylinder. Because the magnetic filter is isolated from the pipeline when the magnetic impurities are removed, when the magnetic filter is communicated with the pipeline, gas in the magnetic filter needs to be discharged through pressurized water, specifically, a water inlet pipe valve is opened, a water outlet pipe valve is kept closed, a blow-down valve is closed, fluid entering the cylinder presses the gas in the cylinder out of an exhaust valve until the cylinder is filled with the fluid, and then the operation is stopped.
In another embodiment, on the basis of the above embodiments, an insulating layer 12 is disposed between the permanent magnet 7 and the protective sleeve 9, and is used for blocking heat energy in the inner cavity of the permanent magnet from being conducted outwards, so as to accelerate the increase of the temperature in the inner cavity and reduce the thermal deformation amplitude of the protective sleeve. The heat insulation layer accessible heat insulating tape successive layer twines on the permanent magnet, and crisscross winding in both sides about, will wholly impress from the protective sheath open end after the winding is accomplished, the effect of heat insulation layer still lies in providing the required space of permanent magnet heat expansion, avoids the protective sheath by spalling.
In this embodiment, before the heating element 10 is powered on to generate heat, the magnetic filter is also isolated in advance, and the fluid in the magnetic filter is discharged from the blowoff valve after isolation, the difference lies in that, based on the existence of the heat insulating layer, the heat of the inner cavity is not easy to conduct to the fluid, the time for the inner cavity to heat up to the curie point is short, meanwhile, the fluid is prevented from being heated, so that the fluid in the cylinder is not required to be discharged, the heating after the heating element is powered on can enable the temperature in the cavity to rise to the curie point in a shorter time, the permanent magnet 7 embodies paramagnetism, the magnetic impurities adsorbed on the surface of the protective sleeve 9 fall to the blowoff valve, then the valve of the water inlet pipeline and the blowoff valve are opened, the water inlet pipeline injects the fluid into the magnetic filter, and the fluid wraps the magnetic impurities from the blowoff valve to flush out. In the embodiment, no fluid waste exists, the Curie point reaching time is shorter, more importantly, in the whole cleaning process, the cylinder body is in a closed state, outside gas cannot enter, and the step of pressurized water exhaust is not needed any more.
According to the invention, through the arrangement of the heating body, the permanent magnet does not need to be repeatedly taken out for cleaning as in the prior art, and the whole sealing performance of the magnetic filter is ensured.
The protective sleeve 9 is made of stainless steel, and is different from the existing copper alloy, as mentioned above, the copper alloy has a sterilization effect, and according to common knowledge, the cost of copper is higher and the strength of copper is lower than that of stainless steel, but when the stainless steel is adopted in the invention, the stainless steel is not only low in cost and not easy to rust and corrode in fluid, but also high in strength, when the temperature of gas in an inner cavity is raised to 103 ℃ from normal temperature, the gas pressure is increased to about 1.2 times, and the protective sleeve made of the stainless steel can ensure enough strength.
The top opening of the protective sleeve 9 is used for placing components such as a permanent magnet, the top opening of the protective sleeve is connected with the controller in a sealing mode during installation, the radial convex part 405 is arranged on the inner ring surface of the circular ring disc 401 of the positioning piece 4, the radial convex part 405 extends to contact with the side wall of the protective sleeve 9 and is used for limiting the two ends of the protective sleeve 9, fluid is directly acted on the protective sleeve 9 after rushing into the inner cavity of the barrel body through the inner tube 104, and the two ends of the protective sleeve 9 are limited so that the stability of the protective sleeve against fluid impact can be guaranteed.
The inner cavity formed by the permanent magnet 7 is also internally provided with a temperature control probe (not shown) for sensing the temperature of the inner cavity of the permanent magnet and feeding back the temperature to the controller to control the heating power of the heating element 10, for example, in the early stage of heating of the heating element, the heating element is given with larger power, after the curie point is approached or reached to be stable, the controller reduces the power of the heating element and maintains the power to the end of cleaning, or the power supply of the heating element is directly cut off, a period of time is required for recovering to the ferromagnetic body based on the permanent magnet 7, the cleaning time is short, and the cleaning effect can be ensured.
Still be provided with magnetic field intensity sensor in the barrel for the magnetic field intensity of perception permanent magnet 7 changes, magnetic field intensity sensor adopts split type design, and certain permanent magnet 7's magnetic pole department is located to its magnetic induction probe 13, sets up in the great certain department of magnetic field intensity promptly, magnetic induction probe 13 can set up on the pressure section of thick bamboo portion 106 of last barrel 101. After the magnetic filter works for a period of time, based on the adsorption effect of the permanent magnet, a layer of magnetic impurities is attached to the surface of the protective sleeve 9, the magnetic impurity layer with a certain thickness changes the magnetic field distribution, and when the magnetic induction probe 13 senses that the magnetic field intensity is low to a set value, a cleaning signal is sent outwards. The magnetic field intensity sensor is also used for matching with the temperature control probe, and controlling to cut off the power supply of the heating body when the sensed magnetic field intensity is lower than a set value.
The magnetic filter is arranged vertically, and according to common knowledge, the gas wrapped in the fluid and the gas entering in the cleaning process float upwards in the fluid and accumulate at the top of the cylinder, so that the gas has a corrosion effect on pipelines and parts in the heating and ventilation pipeline, and the accumulated gas needs to be discharged out of the magnetic filter.
Referring to fig. 1, in an embodiment, the top of the cylinder 1 is connected with an exhaust valve 14 for exhausting the gas in the gas cavity out of the cylinder, and the multi-way 3 may be a three-way valve connected with a water inlet pipeline, a water outlet pipeline and a magnetic filter respectively.
Referring to fig. 4, in another embodiment, the multi-way pipe 3 is a four-way pipe, which connects the air exhausting device, the water inlet pipeline, the water outlet pipeline and the magnetic filter, and the installation mode and the air exhausting mode are different according to the structure of the air exhausting device:
if the exhaust device is an exhaust valve, the exhaust valve is connected to the highest connecting end of the four-way joint, the water inlet pipeline is connected to the lowest connecting end, and the water outlet pipeline and the magnetic filter are connected to the two lateral connecting ends, so that the working mode of exhausting at the highest position and discharging fluid from the lower inlet side and the lateral side is realized, and the exhaust effect is the best in the state;
if exhaust apparatus is the stifled cap of exhaust, magnetic filter are connected at the both sides of cross to the link, and the water inlet pipe is connected at the link of minimum, and outlet pipe way is connected at the link of maximum, realize in the side direction exhaust, the fluid working method of advancing up-and-down, and under this state, the fluid trend accords with the best trend of pipeline, and the pipeline does not have the bend, and the fluid does not have the impact effect to the pipe wall, and pipeline stability is good, no longer need reserve the mounting structure of discharge valve on the barrel, but the exhaust mode of stifled cap of exhaust then is pressurized-water exhaust, and the fluid has the consume.
Specifically, when the exhaust device adopts an exhaust blocking cap to exhaust, a stop valve 15 is arranged at the water outlet end 304 of the four-way valve; after closing the valve of connection on the four-way connection outlet pipe way, close the blowoff valve, utilize the instrument to open the stifled cap of exhaust, let in pressurized fluid in the magnetic filter through the inlet tube way, the fluid is discharged fast by the stifled cap of exhaust under pressure, and the fluid begins to jet out by the filter screen and forms the efflux impact at the air cavity inner wall, the fluid liquid level and the gas that exists in undulant in with the air cavity are extruded, the fluid wraps up in the gas of holding and discharges from the stifled cap of exhaust fast, realize the pressurized-water exhaust, the effect of stop valve lies in forming a short section cavity in four-way top delivery port department, avoid gathering more gas in the cavity.
Obviously, the multi-way pipe 3 is a four-way pipe, and the exhaust device, whether an exhaust block cap or an exhaust valve, can be arranged at the highest connecting end of the four-way pipe, so that the invention can provide various installation modes.
According to the invention, the Curie point characteristic of the permanent magnet is utilized, the permanent magnet is switched between ferromagnetism and paramagnetism through heating, so that the impurities are cleaned under the condition of not disassembling the magnetic filter, the magnetic impurities and the non-magnetic impurities are removed at one time, and according to the fact, the blow-down valve can be independently started to clean the non-magnetic impurities; and a plurality of installation modes are provided, so that the device is suitable for various installation environment requirements.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A vertical magnetic filter comprising:
the vertical type water-saving filter comprises a cylinder body (1), wherein the cylinder body (1) is vertically arranged and comprises an upper cylinder body (101) and a lower cylinder body (102) which are connected, a connecting pipe (103) is arranged on one side of the top of the upper cylinder body, an inner pipe (104) communicated with an inner cavity of the cylinder body is arranged in the connecting pipe, and the end part of the inner pipe extends into a flow guide wall and is matched with the flow guide wall;
the multi-channel (3), the connecting pipe is connected to the multi-channel (3), a flow guide wall (301) is arranged in the multi-channel, two adjacent connecting ends of the multi-channel are communicated and respectively used as a water inlet end (302) and a side outlet end (303), the side outlet end is connected with the connecting pipe, and a return channel (305) is formed between the flow guide wall and the inner wall of the side outlet end of the multi-channel;
the blow-down valve (6) is connected on the lower cylinder body and communicated with the inner cavity of the cylinder body;
the method is characterized in that:
the bottom of the lower barrel (102) is provided with a step-shaped bearing platform (105), the upper barrel (101) is provided with a barrel pressing part (106) extending to the inner cavity, and the end part of the barrel pressing part (106) is also provided with a step structure;
further comprising:
the positioning piece (4) is arranged on the bearing platform;
the filter screen (5) is provided with densely distributed sieve pores, the top of the filter screen is upwards contacted with the step surface of the cylinder pressing part (106), and the bottom of the filter screen is downwards contacted with the bearing platform (105) of the lower cylinder (102);
the permanent magnets (7) are annular and are isolated by a spacer ring (8);
the protective sleeve (9) is connected to the controller shell to isolate the interior of the protective sleeve from fluid, and the closed end extends into the filter screen and wraps the permanent magnet;
and the heating element (10) heats after being electrified, and heats the temperature of the inner cavity of the permanent magnet to be above the Curie point.
2. The vertical magnetic filter according to claim 1, wherein: the Curie temperature of the permanent magnet (7) is 103 ℃.
3. The vertical magnetic filter according to claim 1, wherein: the setting element (4) include ring dish (401), and ring dish (401) are connected with a minor diameter section of thick bamboo (402) and a major diameter section of thick bamboo (403) from top to bottom respectively, and the diameter of a minor diameter section of thick bamboo (402) is less than a major diameter section of thick bamboo (403), the bottom of filter screen (5) sets up diameter expansion portion (501) to bend, and the department of bending compresses tightly on ring dish (401), and space intercommunication about ring dish (401) will.
4. The vertical magnetic filter according to claim 3, wherein: the small-diameter barrel (402) and the large-diameter barrel (403) are comb-tooth-shaped, and the small-diameter barrel (402) and the large-diameter barrel (403) are provided with flow passing intervals (404) at intervals.
5. The vertical magnetic filter according to claim 4, wherein: and a heat insulation layer (12) is arranged between the permanent magnet (7) and the protective sleeve (9).
6. The vertical magnetic filter according to claim 5, wherein: the inner ring surface of the circular ring disc (401) of the positioning piece (4) is provided with a radial convex part (405), and the radial convex part (405) extends to contact with the side wall of the protective sleeve (9).
7. The vertical magnetic filter according to claim 6, wherein: the protective sleeve (9) is made of stainless steel.
8. The vertical magnetic filter according to claim 7, wherein: and a temperature control probe is also arranged in an inner cavity formed by the permanent magnet (7) and used for sensing the temperature of the inner cavity.
9. The vertical magnetic filter according to claim 8, wherein: still be provided with magnetic field intensity sensor in the barrel, magnetic induction probe (13) of magnetic field intensity sensor sets up on the pressure section of thick bamboo portion of last barrel and is located the magnetic pole department of certain permanent magnet (7).
10. The vertical magnetic filter according to any one of claims 1 to 9, wherein:
the multi-way (2) is a tee joint and is respectively connected with the water inlet pipeline, the water outlet pipeline and the magnetic filter, and the top of the upper cylinder body is connected with an exhaust valve;
or the like, or, alternatively,
the multi-way pipe (2) is a four-way pipe and is respectively connected with the exhaust device, the water inlet pipeline, the water outlet pipeline and the magnetic filter, and a stop valve is arranged at the water outlet end of the four-way pipe;
if the exhaust device is an exhaust valve, the exhaust valve is connected with the highest connecting end of the cross joint, the water inlet pipeline is connected with the lowest connecting end, and the water outlet pipeline and the magnetic filter are connected with the two lateral connecting ends;
if exhaust apparatus is the stifled cap of exhaust, the side direction link at the cross is connected to the magnetic filter, and water inlet pipe connects at the lowest department link, and stifled cap of exhaust, outlet pipe connect in highest department link or side direction link.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210817483.9A CN115124119A (en) | 2022-07-12 | 2022-07-12 | Vertical magnetic filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210817483.9A CN115124119A (en) | 2022-07-12 | 2022-07-12 | Vertical magnetic filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115124119A true CN115124119A (en) | 2022-09-30 |
Family
ID=83383163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210817483.9A Pending CN115124119A (en) | 2022-07-12 | 2022-07-12 | Vertical magnetic filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115124119A (en) |
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|---|---|---|---|---|
| GB813288A (en) * | 1955-10-31 | 1959-05-13 | Wilkinson Mfg Company | Improvements in or relating to magnetic and other filters |
| RU2200614C2 (en) * | 1999-11-12 | 2003-03-20 | Открытое акционерное общество "Завод Водоприбор" | Magneto-mechanical filter |
| CN204866185U (en) * | 2015-07-24 | 2015-12-16 | 宁波埃美柯铜阀门有限公司 | Magnetic filter |
| CN107889473A (en) * | 2015-04-09 | 2018-04-06 | 阿迪控股(2008)有限公司 | Magnetic filter with draining and detachable external magnetic element |
| WO2018207083A1 (en) * | 2017-05-09 | 2018-11-15 | Caleffi S.P.A. | Magnetic sludge separator for heating plants |
| CN209146488U (en) * | 2018-11-19 | 2019-07-23 | 玉环市中良流体智控股份有限公司 | A kind of exhaust blowdown valve |
| CN111423048A (en) * | 2020-04-01 | 2020-07-17 | 江西艾芬达暖通科技股份有限公司 | Universal magnetic filter of hanging stove |
| CN211636911U (en) * | 2019-10-28 | 2020-10-09 | 浙江高博卫浴有限公司 | Magnetic filter for heating installation |
| CN214974799U (en) * | 2021-04-06 | 2021-12-03 | 青岛美莱环境工程有限公司 | Magnetic filter device convenient to clean |
-
2022
- 2022-07-12 CN CN202210817483.9A patent/CN115124119A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB813288A (en) * | 1955-10-31 | 1959-05-13 | Wilkinson Mfg Company | Improvements in or relating to magnetic and other filters |
| RU2200614C2 (en) * | 1999-11-12 | 2003-03-20 | Открытое акционерное общество "Завод Водоприбор" | Magneto-mechanical filter |
| CN107889473A (en) * | 2015-04-09 | 2018-04-06 | 阿迪控股(2008)有限公司 | Magnetic filter with draining and detachable external magnetic element |
| CN204866185U (en) * | 2015-07-24 | 2015-12-16 | 宁波埃美柯铜阀门有限公司 | Magnetic filter |
| WO2018207083A1 (en) * | 2017-05-09 | 2018-11-15 | Caleffi S.P.A. | Magnetic sludge separator for heating plants |
| CN209146488U (en) * | 2018-11-19 | 2019-07-23 | 玉环市中良流体智控股份有限公司 | A kind of exhaust blowdown valve |
| CN211636911U (en) * | 2019-10-28 | 2020-10-09 | 浙江高博卫浴有限公司 | Magnetic filter for heating installation |
| CN111423048A (en) * | 2020-04-01 | 2020-07-17 | 江西艾芬达暖通科技股份有限公司 | Universal magnetic filter of hanging stove |
| CN214974799U (en) * | 2021-04-06 | 2021-12-03 | 青岛美莱环境工程有限公司 | Magnetic filter device convenient to clean |
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