CN1570385A - Secondary water drainage and alarm type automatic water displacement device - Google Patents

Abstract

One kind two time will drain water and reports to the police the type automatic water ejector, and reports to the police in the water ejector through the bamboo water ejector the water level fluctuation to cause about the float act, again opens the air inlet through the float about movement which installs with the closure templet air valve, will agglomerate is draining water water and the contamination discharges. Host water ejector uses in does not drain water when the breakdown normal draining water, reports to the police the water ejector uses in not to drain water when the breakdown drains water and reports to the police, thus obtains one kind of cost lowly, work reliable, does not stop up, exempts frequently cleans the maintenance, the inspection is convenient, the long life, bears the high pressure, the water ejector which the breakdown dual instruction and mechanical and electrical dual reports to the police.

Description

Secondary draining and warning type automatic water trap

The invention relates to a kind of secondary draining and warning type automatic water trap.

As everyone knows, contain water and a large amount of tiny dirt in the pressurized air, the water in the pressurized air can be cumulative as not discharging, and tiny dirt also can be cumulative and gather agglomerating in the pressurized air.Water in the pressurized air and dirt can cause pipeline and equipment corrosion, obstruction, damage and inefficacy, and the quality of product that has a strong impact on factory, thereby cause very big economic loss.Usually, water in the pressurized air that air compressor, lyophilizer and pipe end are drawn is by independently hydathode discharge, dirt in the pressurized air is filtered to hold back by piping filter and regularly replaced filter core again, and the water in the piping filter is discharged by built-in hydathode.

Tradition independently mainly contains four kinds of float type, float-ball type, electrodynamic type and electromagnetic types etc. with built-in automatic water trap.The automatic water trap that uses does not all have alarm during not draining of fault at present, causes hydathode to be difficult to timely maintenance, and water and dirt flow among pipeline and the manufacturing mechanism with being difficult to avoid.The tradition float type drainer makes the float knee-action by the lifting of water level in the collecting bowl, open and close the inlet hole of piston air valve by fluctuating of float, utilize pressure official post piston knee-action to open and close the drain opening of hydathode, reach self-draining purpose.Mainly there is the problem of following two aspects in tradition float type automatic water trap: the first, hydathode can only draining and can not blowdown, need often carry out complicated clean and maintenance or replacing.Its former because: 1, the structure of hydathode piston air valve must prevent the obstruction of dirt, the mesh of its water inlet filter screen is less, have only the less debris can be by the mesh of water inlet filter screen, can only draining on the structure and most of dirt can not be excluded, so the water inlet filter screen is understood blocked and easy damage.2, the inlet hole of piston air valve does not have dustproof construction, enters the dirt of collecting bowl by the water inlet filter screen, very easily stops up inlet hole and causes the piston air valve action unreliable.3, the sealing between piston and the cylinder guarantees by seal ring, but not protection of seal ring, frictional resistance makes the tripping force of piston action bigger, by the dirt of water inlet filter screen, causes easy damage of Sealing and piston stuck easily.4, the water inlet filter screen is contained in the collecting bowl, cleans the dirt in the water inlet filter screen, whole hydathode need be taken apart and carry out.The second, because the water level in the transparent plastic collecting bowl is fuzzy, be difficult to check whether hydathode is working properly; And the restriction of transparent plastic collecting bowl intensity, hydathode only is applicable in the pressurized air low service system.Tradition float-ball type hydathode utilizes ball float directly to cut out and open its tiny drain opening, and reaches the purpose of getting rid of water and dirt; The more or less freely obstruction of its tiny drain opening, draining maybe can not be closed and the problem of leaking gas and cause opening; And close and exist small critical buoyant state when opening drain opening because of ball float, make drain opening have blocked defective easily on the structure; This kind hydathode has belonged to obsolete product, and is comparatively rare in factory.Traditional electrical dynamic formula and electromagnetic type hydathode are difficult for stopping up, air is discharged simultaneously but water, dirt are big and piezometric contracts, and exist driving component damage easily, electrical hazard, Sealing to lose efficacy easily, generation can not open that draining maybe can not be closed and the problem of leaking gas, and needs consume electric power and cost comparatively expensive.At present, the cost performance of traditional float type automatic water trap is better than electrodynamic type and electromagnetic type automatic water trap, in the reality most of use be the float type automatic water trap.

The object of the present invention is to provide that a kind of cost is lower, reliable operation, do not stop up, exempt from frequent clean and maintenance, check convenient, high pressure resistant, long lifetime, the secondary draining and the warning type automatic water trap of the dual indication of fault and electromechanical double warning.For reaching above purpose, technological scheme of the present invention is as follows:

A kind of secondary draining and warning type automatic water trap, mainly comprise parts such as Water collecting tube, last bowl cover, following bowl cover, bowl cover retainer, filter opening plate, interior water drum, last connecting tube, lower communicating tube, draining cover, whistle pearl cover, diaphragm air valve device, ball cock device, water inlet display unit, and by above-mentioned part and device main hydathode and the warning hydathode part formed respectively.

Pressurized air in the described hydathode, water and dirt, under the effect of compressed-air actuated pressure and water and dirt self gravitation, at first enter the Water collecting tube of main hydathode by the four-way of water inlet display unit, pressurized air is entered the Water collecting tube of warning hydathode by lower communicating tube by last connecting tube, water and dirt then, greater than the large particle dirt of filter opening plate filter opening, be blocked among the interior sky of bowl cover and filter opening plate formation on a small quantity.When not having pressure in the hydathode, since valve rod be connected the action of gravity of part thereon, throw off valve rod and valve body bottom, and two drain opening of promptly main hydathode and warning hydathode are open mode, and water and dirt flow out from draining cover and whistle pearl cover in the hydathode.In hydathode, there is pressure, but buoyancy of water is less than the deadweight of float, when being the water shortage in two Water collecting tubes of hydathode: float, magnetic float make air packing on it by deadweight, contact with the inlet hole, the inlet hole of induction valve gap of valve gap in the diaphragm air valve device respectively, the inlet hole of the inlet hole of valve gap and induction valve gap is sealed; Because the pressurized air in two air chambers that diaphragm and valve gap, induction valve gap constitute, by the outside throttling pressure release of the pressure relief vent of valve rod, promptly all shed pressure in two air chambers this moment, the diaphragm top does not have the effect of compressed air pressure, and the diaphragm below always is compressed action of air pressure, diaphragm rim strip dynamic diaphragm and valve rod move up, the bottom sealing of valve rod and valve body, and two drain opening of promptly main hydathode and warning hydathode are closed condition.In hydathode, there is pressure, but when buoyancy of water was greater than the deadweight of float in the main hydathode: the float in the main hydathode moved up because of buoyancy, the air packing in the ball cock device and the inlet hole of valve gap break away from, the inlet hole of valve gap is opened, pressurized air is from the inlet hole of float screw and the inlet hole of valve gap, enter among the air chamber of diaphragm and valve gap formation, promptly have pressure in the air chamber of main hydathode diaphragm air valve at this moment; Because the lifting surface area of structure upper diaphragm top is greater than the lifting surface area of its bottom surface, so producing pressure difference depresses diaphragm and diaphragm pad, throw off the bottom of valve rod and valve body, water in the hydathode and dirt, the water port of valve body and draining cover is discharged from main hydathode, and remaining certain water plays water seal, reaches a hydathode draining and the purpose of not exhaust; In this process, the water level of interior water drum water inlet is higher than the water level that float floats in the main hydathode in the warning hydathode on the structure, can not intake in the interior water drum, and magnetic float in the warning hydathode and diaphragm air valve can not move.After water in the hydathode and dirt discharge: along with the float in the main hydathode of the decline of water level moves down, inlet hole on the valve gap is closed, because the pressurized air in the diaphragm top is by the outside pressure release of the pressure relief vent of valve rod, and the below of diaphragm is compressed action of air pressure, the diaphragm pad of diaphragm air valve in the main hydathode, drive valve rod and be connected that the gravity that overcomes of part moves up on the valve rod, valve rod and the sealing of valve body bottom, the water level in the wait hydathode rises again and carries out next circulation discharge water and dirt; The same reason of warning hydathode in this process, magnetic float and diaphragm air valve can not move.When main not draining of hydathode fault: along with the hydathode middle water level little by little raises, water in the warning hydathode will enter in the interior water drum, after the water yield in the interior water drum is floated magnetic float, air packing in the ball cock device breaks away from the inlet hole of induction valve gap, the inlet hole of induction valve gap is opened, pressurized air is from the vent of float screw and the inlet hole of induction valve gap, enter among the air chamber of diaphragm top, produce pressure difference with under the pressing diaphragm, throw off the bottom of valve rod and valve body, water in the hydathode and dirt, weep hole from the warning hydathode in the valve body and whistle pearl cover are discharged; After the water yield in the interior water drum is floated magnetic float, the magnet ring of magnetic float the inside in the warning hydathode, induction switch to induction valve gap the inside loses effect, and induction switch transfers closure to by often opening, and can produce electric warning this moment by connected electric device; After water and dirt eliminating, the water in entering on the structure in the water drum can not be discharged from, and magnetic float floats all the time, and throw off all the time the bottom of valve rod and valve body, and the whistle pearl that pressurized air blows in the pearl cover of the whistle produces the warning whistle.

Described hydathode master hydathode and warning hydathode housing, each is made up of one group of identical Water collecting tube, bowl cover retainer, filter opening plate, last bowl cover and following bowl cover, Water collecting tube and bowl cover retainer, bowl cover is by being threaded down, the filter opening plate, goes up bowl cover and is stuck between Water collecting tube and the bowl cover retainer.Main hydathode links to each other with the connection joint of bowl cover on the main hydathode by the connection nut on last connecting tube, the lower communicating tube left side.The warning hydathode links to each other with the connection joint of bowl cover on the warning hydathode by the connection nut on last connecting tube, lower communicating tube the right.Valve body in two groups of diaphragm air valve devices, respectively with the following bowl cover of the following bowl cover of main hydathode, warning hydathode by being threaded.Rubber back-up ring in the diaphragm air valve device is contained among the valve body by back-up ring retainer, back-up ring pad, directly embed O type circle among the groove of valve rod conical surface, valve body, valve rod, valve gap, induction valve gap, diaphragm, diaphragm pad are connected by Stem Mut and gas valve screw, with the action of diaphragm and valve rod, be limited between valve gap, induction valve gap and the formed cavity of valve body.The last bowl cover of four-way and the main hydathode of water inlet display unit is by being threaded, and water gauge freely is contained among the window of four-way, and visor is threaded by window retainer and four-way, is fixed between window retainer and the four-way.Float, magnetic float are connected with two float screws respectively in the ball cock device, and air packing is bonded among the groove of float screw, and two air packings are respectively by the deadweight of ball cock device, are pressed on the inlet hole of inlet hole, induction valve gap of valve gap.The pre-buried magnetic float the inside that is contained in of magnet ring in the warning hydathode, the pre-buried induction valve gap the inside that is contained in of induction switch, the lead-in wire of induction switch, the lead-in wire plug screw under the warning hydathode on the bowl cover and the aperture of rubber pad are drawn, and the lead-in wire Outlet compresses rubber seal by the lead-in wire plug screw.Whistle pearl in the pearl cover of the warning hydathode whistle freely is contained within whistle pearl cover and the formed space of pearl plug screw, the whistle.The following bowl cover of draining cover, bleed screw and main hydathode is by being threaded, and the following bowl cover of whistle pearl cover and warning hydathode is by being threaded.

Described hydathode is made up of main hydathode and two groups of hydathodes of warning hydathode, main hydathode is identical with the most of part of warning hydathode, the hydathode manufacture cost is lower during batch process, and hydathode is discharged two water and dirts in the collecting bowl at every turn, and its water displacement is big and operating frequency is low.

The housing of described hydathode is made up of Water collecting tube, bowl cover retainer, filter opening plate, last bowl cover and following bowl cover, Water collecting tube and bowl cover retainer, bowl cover is by being threaded down, filter opening plate, last bowl cover are stuck between Water collecting tube and the bowl cover retainer, make that bowl cover and filter opening plate have bigger dirt holding space on the hydathode, simple in structure and easy to process, the lead-in wire of induction switch is conveniently drawn, and goes up connecting tube and lower communicating tube when guaranteeing the hydathode assembling at grade.

Rub in the described hydathode diaphragm air valve device and move and obturator, reliable operation and working life are longer.Form the drain opening of bigger conial ring shape between valve rod and the valve body, O type circle directly is contained among the groove on valve rod circular cone inclined-plane, and its sealing is reliable and simple in structure, and water and dirt are discharged smoothly.Rubber back-up ring in the valve body and the gap between the valve rod are zero, the rubber back-up ring is provided with the tangent line of cutting open along radial direction: when diaphragm and valve rod when upwards drain opening is closed in action, because the effect of compressed air pressure, the rubber back-up ring produces thrust upwards to diaphragm, diaphragm and valve rod be upwards action rapidly, it is little that the work of diaphragm air valve starts air pressure, flexible movements; When diaphragm and valve rod move the opening water discharge mouth downwards, under the effect of air pressure, the rubber back-up ring along the tangent line of cutting open separately, water in the hydathode and dirt are discharged from drain opening smoothly.

Float is connected with two float screws respectively with magnetic float in the described hydathode ball cock device, and air packing is bonded among the groove of float screw, and the float screw is provided with vent, ball cock device simple in structure, processing and easy to assembly.

Water gauge in the described main hydathode water inlet display unit four-way be a redness, freely is contained within the window of water display unit four-way into, and dirt is difficult to cover water gauge.When the water gauge in the four-way is floated, the fault that the indication hydathode has produced not draining and do not reported to the police.When dirt had covered water gauge, the dirt in the indication hydathode should in time be removed.

Described main hydathode is used for the bleed screw of hydathode breakdown maintenance front exhaust, is connected with the following bowl cover of main hydathode by screw thread, and venting pad and O type circle are contained among the groove of bleed screw, and it is simple in structure, sealing is reliable and long service life.When bleed screw screws: the friction between venting pad and the bleed screw, the friction less than between venting pad and the O type circle has guaranteed that O type circle can not be spun damage; The groove of bleed screw, having limited O type circle high deformation can be inexcessive, so O type circle is difficult for aging and the life-span is longer.

The filter screen of the float cover in the described hydathode and the filter screen of inner core cover, guaranteed that the inlet hole of pressurized air valve gap from the diaphragm air valve, the inlet hole of induction valve gap successfully enter, and the dirt in the obstruct Water collecting tube enters, and has guaranteed that promptly the diaphragm air valve works reliably and arranged long working life.

Interior water drum in the described warning hydathode, when having guaranteed main not draining of hydathode fault, the water in the warning hydathode Water collecting tube enters interior water drum, the induction float is floated and the action of diaphragm air valve, and the warning hydathode produces electromechanical warning reliably.

Freely be contained in the whistle pearl of whistle pearl cover in the described warning hydathode, blow by compressed-air actuated, rotation sharp produces air vibration and warning birdie within whistle pearl cover.

The present invention compared with prior art has following characteristics:

One, water displacement is big and most of dirt is excluded.Each water and the dirt of discharging in two Water collecting tubes of hydathode causes the hydathode operating frequency to reduce a half-sum life-span and doubles; As be used for the built-in hydathode of piping filter, because of the dirt in the filter is excluded, its replacement cycle that crosses filter core can prolong several times.

Two,, compare, exempted needing the frequent defective that hydathode carries out complicated clean and maintenance or needs frequent replacing because of the hydathode damage of dismantling with traditional float type automatic water trap owing to most of dirt in the hydathode can be excluded.

Three, owing to the effect of do not rub in the diaphragm air valve part and rubber back-up ring, compare with the piston air valve of traditional float type automatic water trap: air valve work tripping force is little, no easily damaged parts and reliable in action.

Four, because hydathode is provided with water gauge, compare with traditional float type automatic water trap, it is convenient that hydathode stops up not draining trouble shooting, and water gauge has the dirt double action that the indication hydathode stops up not draining and in time removes.

Five, hydathode has not draining fault electromechanical double warning function, and traditional float type automatic water trap does not have warning function, thereby has avoided traditional not draining of hydathode fault to be difficult to the significant deficiency of in time handling.

Six, hydathode remove the large particle dirt time, do not take whole hydathode apart, only need take being threaded of bowl cover and bowl cover retainer simply apart and can carry out.

Seven, because hydathode adopts the diaphragm air valve device to open and close the mode of drain opening indirectly, compare with the mode that traditional float-ball type automatic water trap directly opens and closes drain opening, because of the outlet of its drain opening and the active force that opens and closes drain opening can be designed into enough greatly, so drain opening can be not blocked, thereby exempted the defective that needs often to dismantle the hydathode clean and maintenance.

Eight, because hydathode utilizes buoyancy of water and compressed-air actuated pressure as power, only need to consume the control gas of trace, compare with the electromagnetic type automatic water trap with the traditional electrical dynamic formula, cost is lower, do not have electrical hazard, do not need electric energy and save a large amount of pressurized air.

Below the present invention will be described with embodiment with reference to the accompanying drawings.

Fig. 1 is a structural representation of the present invention.

Fig. 2 is the A-A sectional drawing of Fig. 1, the structural representation of promptly main hydathode and water inlet display unit; The B-B sectional drawing, the structural representation of whistle pearl cover in the hydathode of promptly reporting to the police; Sequence number 27 enlarged views, i.e. the part schematic representation of rubber back-up ring in the diaphragm air valve device.

Fig. 1 and Fig. 2 have reflected the embodiments of the invention scheme.

1 is four-way among the figure, the 2nd, and water gauge, the 3rd, last bowl cover, the 4th, the filter opening plate, the 5th, float screw, 5-1 are vents, the 6th, O shape circle, the 7th, bowl cover retainer, the 8th, Water collecting tube, the 9th, air packing, the 10th, valve gap, 10-1 are inlet holes, the 11st, float, the 12nd, gas valve screw, the 13rd, O shape circle, the 14th, following bowl cover, the 15th, venting pad, the 16th, bleed screw, the 17th, O shape circle, the 18th, back-up ring pad, the 19th, draining cover, the 20th, valve rod, 20-1 are relief holes, the 21st, and O shape circle, the 22nd, O shape circle, the 23rd, lower communicating tube, the 24th, valve body, 24-1 is the water port, the 25th, and whistle pearl, the 26th, whistle pearl cover, the 27th, rubber back-up ring, the 28th, back-up ring retainer, the 29th, lead-in wire plug screw, the 30th, lead-in wire, the 31st, rubber pad, the 32nd, diaphragm, the 33rd, diaphragm pad, the 34th, Stem Mut, the 35th, induction switch, the 36th, interior water drum, the 37th, magnet ring, the 38th, induction valve gap, 38-1 is an inlet hole, the 39th, and magnetic float, the 40th, inner core cover, 40-1 is a filter screen, the 41st, and the bowl cover plug screw, the 42nd, be communicated with joint, the 43rd, last connecting tube, the 44th, float cover, 44-1 are filter screens, the 45th, be communicated with nut, the 46th, the window retainer, the 47th, O shape circle, the 48th, visor, the 49th, whistle pearl plug screw.

Among embodiment of the invention structural representation Fig. 1 and Fig. 2:

Hydathode master hydathode and warning hydathode housing, each is made up of one group of identical Water collecting tube 8, bowl cover retainer 7, filter opening plate 4, last bowl cover 3 and following bowl cover 14, Water collecting tube 8 and bowl cover retainer 7, bowl cover 14 is by being threaded down, filter opening plate 4, goes up bowl cover 3 and is stuck between Water collecting tube 8 and the bowl cover retainer 7.Main hydathode links to each other with the connection joint 42 of bowl cover 3 on the main hydathode by the connection nut 45 on last connecting tube 43, lower communicating tube 23 left sides.The warning hydathode links to each other with the connection joint 42 of bowl cover 3 on the warning hydathode by the connection nut 45 on last connecting tube 43, lower communicating tube 23 the right.Valve body 24 in two groups of diaphragm air valve devices, respectively with the following bowl cover 14 of the following bowl cover 14 of main hydathode, warning hydathode by being threaded.Rubber back-up ring 27 in the diaphragm air valve device is contained among the valve body 24 by back-up ring retainer 28, back-up ring pad 18, directly embed O type circle 21 among the groove of valve rod 20 conical surfaces, valve body 24, valve rod 20, valve gap 10, induction valve gap 38,32 diaphragm pad 33 being connected of diaphragm by Stem Mut 34 and gas valve screw 12, with the action of diaphragm 32 and valve rod 20, be limited between valve gap 10, induction valve gap 38 and the valve body 24 formed cavitys.The last bowl cover 3 of four-way 1 and the main hydathode of water inlet display unit is by being threaded, and water 2 is marked and freely is contained among the window of four-way 1, and visor 48 is threaded by window retainer 46 and four-way 1, is fixed between window retainer 46 and the four-way 1.Float 11, magnetic float 39 are connected with two float screws 5 respectively in the ball cock device, air packing 9 is bonded among the groove of float screw 5, two air packings 9 are respectively by the deadweight of ball cock device, are pressed on the inlet hole 38-1 of inlet hole 10-1, induction valve gap 38 of valve gap 10.Magnet ring 37 pre-buried magnetic float 39 the insides that are contained in the warning hydathode, induction switch 35 pre-buried induction valve gap 38 the insides that are contained in, the lead-in wire 30 of induction switch 35, the lead-in wire plug screw 29 under the warning hydathode on the bowl cover 14 and the aperture of rubber pad 31 are drawn, and 30 Outlets that go between compress rubber pad 31 sealings by lead-in wire plug screw 29.Whistle pearl 25 in the warning hydathode whistle pearl cover 26 freely is contained within whistle pearl cover 26 and the whistle pearl plug screw 49 formed spaces.The following bowl cover 14 of draining cover 19, bleed screw 16 and main hydathode is by being threaded, whistle pearl overlap 26 with the following bowl cover 14 of warning hydathode by being threaded.

Hydathode is made up of main hydathode and two groups of hydathodes of warning hydathode, main hydathode is identical with the most of part of warning hydathode, the hydathode manufacture cost is lower during batch process, and hydathode is discharged two water and dirts in collecting bowl 8 water at every turn, and its water displacement is big and operating frequency is low.

The housing of hydathode is made up of Water collecting tube 8, bowl cover retainer 7, filter opening plate 4, last bowl cover 3 and following bowl cover 14, Water collecting tube 8 and bowl cover retainer 7, bowl cover is by being threaded down, filter opening plate 4, last bowl cover 3 are stuck between Water collecting tube 8 and the bowl cover retainer 7, make that bowl cover 3 and filter opening plate 4 have bigger dirt holding space on the hydathode, simple in structure and easy to process, the lead-in wire 29 of induction switch 35 is conveniently drawn, and goes up connecting tube 43 and lower communicating tube 23 when guaranteeing the hydathode assembling at grade.

Rub in the hydathode diaphragm air valve device and move and obturator, reliable operation and working life are longer.Form the drain opening of big and conial ring shape between valve rod 20 and the valve body 24, O type circle 21 directly is contained among the groove on valve rod 20 circular cone inclined-planes, and sealing is reliable and simple in structure, and water and dirt are discharged smoothly.Rubber back-up ring 27 in the valve body 24 and the gap between the valve rod 20 are zero, rubber back-up ring 27 is provided with the tangent line 27-1 that cuts open along radial direction: when diaphragm 32 and valve rod 20 when upwards drain opening is closed in action, because the effect of compressed air pressure, 27 pairs of diaphragms of rubber back-up ring 32 produce thrust upwards, diaphragm 32 and valve rod 20 be upwards action rapidly, and the work of diaphragm air valve starts that air pressure is little, flexible movements and reliable operation; When diaphragm 32 and valve rod 30 downwards during action opening water discharge mouth, under the effect of air pressure, rubber back-up ring 27 along the tangent line 27-1 that cuts open separately, water in the hydathode and dirt are discharged from drain opening smoothly.

Float 11 is connected with two float screws 5 respectively with magnetic float 39 in the hydathode ball cock device, and air packing 9 is bonded among the groove of float screw 5, and float screw 5 is provided with vent 5-1, ball cock device simple in structure, processing and easy to assembly.

Water gauge 2 in the main hydathode water inlet display unit four-way be a redness, freely is contained within the window of water display unit four-way 1 into, and dirt is difficult to cover water gauge.When the water gauge 2 in the four-way 1 is floated, the fault that the indication hydathode has produced not draining and do not reported to the police.When dirt had covered water gauge 2, the dirt in the indication hydathode should in time be removed.

Main hydathode is used for the bleed screw 16 of hydathode breakdown maintenance front exhaust, is connected with the following bowl cover 14 of main hydathode by screw thread, and venting pad 15 and O type circle 17 are contained among the groove of bleed screw 16, and it is simple in structure, sealing is reliable and long service life.When bleed screw screws: the friction between venting pad 15 and the bleed screw 16, the friction less than between venting pad 15 and the O type circle 17 has guaranteed that O type circle 17 can not be spun damage; The groove of bleed screw 16, having limited O type circle 17 high deformation can be inexcessive, so O type circle 17 is difficult for aging and the life-span is longer.

The filter screen 44-1 of the float cover 44 in the hydathode and the filter screen 40-1 of inner core cover 40, guaranteed that the inlet hole 10-1 of pressurized air valve gap 10 from the diaphragm air valve, the inlet hole 38-1 of induction valve gap 38 successfully enter, and the dirt that intercepts in the Water collecting tube 8 enters, and has guaranteed that promptly the diaphragm air valve works reliably and arranged long working life.

Interior water drum 36 in the warning hydathode, when having guaranteed main not draining of hydathode fault, the water in the warning hydathode Water collecting tube 8 enters interior water drum 36, induction float 39 is floated and the action of diaphragm air valve, and the warning hydathode produces electromechanical warning reliably.

Freely be contained in the whistle pearl 25 of whistle pearl cover 26 in the warning hydathode, blow by compressed-air actuated, rotation sharp produces air vibration and warning birdie within whistle pearl cover 26.

The present invention in use, pressurized air in the hydathode, water and dirt, under the effect of compressed-air actuated pressure and water and dirt self gravitation, at first enter the Water collecting tube 8 of main hydathode by the four-way 1 of water inlet display unit, pressurized air is entered the Water collecting tube 8 of warning hydathode by lower communicating tube 23 by last connecting tube 43, water and dirt then, greater than the large particle dirt of filter opening plate 4 filter openings, be blocked among the interior sky of bowl cover 3 and 4 formation of filter opening plate on a small quantity.When not having pressure in the hydathode, since valve rod 20 be connected the action of gravity of part thereon, valve rod 20 is thrown off with valve body 24 bottoms, and two drain opening of promptly main hydathode and warning hydathode are open mode, and water and dirt flow out from draining cover 19 and whistle pearl cover 26 in the hydathode.In hydathode, there is pressure, but buoyancy of water is less than the deadweight of float 11, when being the water shortage in two Water collecting tubes of hydathode: float 11, magnetic float 39 make air packing 9 on it by deadweight, contact with inlet hole 10-1, the inlet hole 38-1 of induction valve gap 38 of valve gap 10 in the diaphragm air valve device respectively, the inlet hole 10-1 of valve gap 10 and the inlet hole 38-1 of induction valve gap 38 are sealed; Because the pressurized air in two air chambers that diaphragm 32 and valve gap 10, induction valve gap 38 constitute, by the outside throttling pressure release of the pressure relief vent 20-1 of valve rod 20, promptly all shed pressure in two air chambers this moment, diaphragm 32 tops do not have the effect of compressed air pressure, and diaphragm 32 belows always are compressed action of air pressure, diaphragm pad 33 drives valve rod 20 and moves up, and valve rod 20 seals with the bottom of valve body 24, and two drain opening of promptly main hydathode and warning hydathode are closed condition.In hydathode, there is pressure, but when buoyancy of water was greater than the deadweight of float 11 in the main hydathode: the float 11 in the main hydathode moved up because of buoyancy, air packing 9 in the ball cock device breaks away from the inlet hole 10-1 of valve gap 10, the inlet hole 10-1 of valve gap 10 is opened, pressurized air is from the inlet hole 5-1 of float screw 5 and the inlet hole 10-1 of valve gap 10, enter among the air chamber of diaphragm 32 and valve gap 10 formations, promptly have pressure in the air chamber of main hydathode diaphragm air valve at this moment; Because the lifting surface area of structure upper diaphragm 32 tops is greater than the lifting surface area of its bottom surface, so producing pressure difference depresses diaphragm pad 33, valve rod 20 is thrown off with the bottom of valve body 24, water in the hydathode and dirt, the water port 24-1 of valve body 24 and draining cover 19 is discharged from main hydathode, and remaining certain water plays water seal, reaches a hydathode draining and the purpose of not exhaust; In this process, the water level of interior water drum 36 water inlets in the warning hydathode is higher than the water level that float 11 floats in the main hydathode on the structure, can not intake in the interior water drum 36, and magnetic float 39 and diaphragm air valve in the warning hydathode can not move.After water in the hydathode and dirt discharge: along with the float 11 in the main hydathode of the decline of water level moves down, inlet hole 10-1 on the valve gap 10 is closed, because the pressurized air in diaphragm 32 tops is by the outside pressure release of pressure relief vent 20-1 of valve rod 20, and the below of diaphragm 32 is compressed action of air pressure, the diaphragm pad 33 of diaphragm air valve in the main hydathode, drive valve rod 20 and be connected that the gravity that overcomes of part moves up on the valve rod 20, valve rod 20 rises again and carries out next circulation discharge water and dirt with valve body 24 bottoms sealing, the water level in the wait hydathode; The same reason of warning hydathode in this process, magnetic float 39 and diaphragm air valve can not move.When main not draining of hydathode fault: along with the hydathode middle water level little by little raises, water in the warning hydathode will enter in the interior water drum 36, after the water yield in the interior water drum 36 is floated magnetic float 39, air packing 9 in the ball cock device breaks away from the inlet hole 38-1 of induction valve gap 38, the inlet hole 38-1 of induction valve gap 38 is opened, pressurized air is from the vent 5-1 of float screw 5 and the inlet hole 38-1 of induction valve gap 38, enter among the diaphragm 32 top air chambers, producing pressure difference depresses diaphragm pad 33, valve rod 20 is thrown off with the bottom of valve body 24, water in the hydathode and dirt, weep hole 24-1 from the warning hydathode in the valve body 24 and whistle pearl cover 26 are discharged; After the water yield in the interior water drum 36 is floated magnetic float 39, the magnet ring 37 of magnetic float 39 the insides in the warning hydathode, induction switch 35 to induction valve gap 38 the insides loses effect, and induction switch 35 transfers closure to by often opening, and can produce electric warning this moment by connected electric device; After water and dirt eliminating, the water in entering on the structure in the water drum 36 can not be discharged from, and magnetic float 39 floats all the time, and valve rod 20 is thrown off all the time with the bottom of valve body 24, and the whistle pearl 25 that pressurized air blows in the whistle pearl cover 26 produces the warning whistles.

In the present invention and the embodiment other about structure and principle, identical with traditional float type automatic water trap, the Therefore, omited explanation.

Claims (9)

1, a kind of secondary draining and warning type automatic water trap, comprise parts such as Water collecting tube, last bowl cover, following bowl cover, bowl cover retainer, filter opening plate, interior water drum, last connecting tube, lower communicating tube, draining cover, whistle pearl cover, diaphragm air valve device, ball cock device, water inlet display unit, and by above-mentioned part, device main hydathode and the warning hydathode part formed respectively.It is characterized in that: above-mentioned hydathode is made up of main hydathode and warning hydathode two-part, the housing of above-mentioned main hydathode and warning hydathode is by Water collecting tube 8, bowl cover retainer 7, filter opening plate 4, last bowl cover 3 and following bowl cover 14 are formed, above-mentioned hydathode is provided with two cover diaphragm air valve devices, above-mentioned hydathode is provided with two cover ball cock devices, be provided with water gauge 2 in the four-way 1 in the above-mentioned water inlet display unit, the following bowl cover 14 of above-mentioned main hydathode is provided with bleed screw 16, water drum 36 and inner core cover 40 in being provided with in the above-mentioned warning hydathode are provided with whistle pearl 25 in the above-mentioned whistle pearl cover 26 that is connected with the warning hydathode.

2, according to the described hydathode of claim 1, it is characterized in that described hydathode is made up of main hydathode and warning hydathode two-part, main hydathode, warning hydathode are by last connecting tube 43 and 23 in parallel connections of lower communicating tube.

3, according to the described hydathode of claim 1, it is characterized in that described main hydathode and warning hydathode housing, each is made up of one group of identical Water collecting tube 8, bowl cover retainer 7, filter opening plate 4, last bowl cover 3 and following bowl cover 14, Water collecting tube 8 and bowl cover retainer 7, bowl cover 14 is by being threaded down, filter opening plate 4, goes up bowl cover 3 and is stuck between Water collecting tube 8 and the bowl cover retainer 7.

4, according to the described hydathode of claim 1, it is characterized in that in the described two cover diaphragm air valve devices, form the drain opening of conial ring shape between valve rod 20 and the valve body 24, O type circle 21 is stuck in the groove on valve rod 20 circular cone inclined-planes, be provided with rubber back-up ring 27 in the valve body 24, gap between rubber back-up ring 27 and the valve rod 24 is zero, and rubber back-up ring 27 is provided with the tangent line 27-1 that cuts open along radial direction.

5, according to the described hydathode of claim 1, it is characterized in that in the described two cover ball cock devices, float 11 and a float screw 5, float 39 and another float screw 5 are by being threaded, and float screw 5 is provided with vent 5-1, and air packing 9 is bonded among the groove of float screw 5.

6,, it is characterized in that into the water gauge 2 in the four-way 1 freely is contained among the window of four-way 1 in the water display unit according to the described hydathode of claim 1.

7, according to the described hydathode of claim 1, it is characterized in that the bottom flange 14 of described main hydathode is provided with bleed screw 16, venting pad 15, O type circle 17 are contained among the groove of bleed screw 16.

8, according to the described hydathode of claim 1, water drum 36 and inner core cover 40 in it is characterized in that being provided with in the described warning hydathode, interior water drum 36 is tightly connected with induction valve gap 38, and inner core cover 40 is connected on the interior water drum 36, and inner core cover 40 is provided with filter screen 40-1.

9, according to the described hydathode of claim 1, it is characterized in that being provided with whistle pearl 25 in the described whistle pearl cover 26 that is connected with the warning hydathode, whistle pearl 25 freely is contained within whistle pearl cover 26 and the whistle pearl plug screw 49 formed spaces.