CN2156376Y

CN2156376Y - Multi-function type steam trap

Info

Publication number: CN2156376Y
Application number: CN 91228294
Authority: CN
Inventors: 崔有年
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-11-08
Filing date: 1991-11-08
Publication date: 1994-02-16
Anticipated expiration: 2001-11-08

Abstract

The utility model relates to a multifunction type steam valve, which is composed of a valve cover, a check valve, a valve seat, a keg float, an auxiliary valve, etc. A lever hinged on the keg float of the lower part of the valve cavity of a main valve is connected with a valve core through a pin shaft, and an outer valve core forms a cone cap shape. A valve body is provided with a transfer switch V which is communicated with the auxiliary valve. When a system is started, large amounts of air and excess condensate water are eliminated through the auxiliary valve and the main valve, the starting time is shortened, when the system is operated normally, the auxiliary valve is cut off, and the main valve is operated; the main valve has the unique self repair function, the leakage is reduced, and the service life is extended.

Description

Multi-function type steam trap

The utility model relates to a kind of multi-functional drain valve, is applicable to the steam heating system running, promptly starts the working conditions change of operation, realizes starting fast, changes operating conditions automatically over to.This drain valve can be eliminated manually operated loaded down with trivial details and energy loss.Belong to heat energy technical field Automatic steam trap Trap class, international classification number is: F16T 1/200.

China's utility application (90226405.2) discloses a kind of " horizontal bimetal drainage valve with floating ball ".This drain valve is used for the horizontal bimetal drainage valve with floating ball that heat exchanger is not held hydrophobic resistance vapour, its structure characteristic is the two-part that horizontal valve pocket are divided into by at interval, the through hole that is connected with top valve pocket is all established at the top, the through hole of its snout cavity is provided with filter screen, the through hole of outlet plenum is provided with the valve seat of vertical through hole, the floss hole of this valve seat can become sealing pair with the flap that the upper end is movably connected on the valve rod of lever one end, this the other end that is positioned at the lever on the support is fixed with ball float, and it can be positioned on the free end that an end is fixed on the bimetallic strip on the valve gap inner valve body.The advantage of this patent application is to make simple, reliable performance, long service life.But in use, because system was a cold conditions when system began to start, a large amount of its water yields of the rapid condensation of steam are greater than normal hydrophobic amount several times even tens of times, existing drain valve can not be finished hydrophobic initiating task in short-term, thereby make starting time long, if use big discharge capacity drain valve, certainly will when changing normal operation duration over to, be in resistance vapour state, cause that the leaked steam amount increases, totally unfavorable to the pipe network operating mode, and the drain valve rapid wear, otherwise when starting, to open bypass valve, not only make troubles to the operator, and a large amount of leaked steam, water of condensation pipe network operating mode is destroyed, and water of condensation can not reclaim, and wastes a large amount of energy.

The purpose of this utility model is just in order to overcome deficiency of the prior art, and proposed a kind of multi-functional drain valve.

The object of the present invention is achieved like this:

The multi-functional drain valve of forming by valve gap, safety check, valve seat, keg float and secondary valve etc., lever of hinge joint on the keg float of main valve valve pocket bottom, lever is connected with spool by bearing pin, it on the spool outer spool, the tapered cap shape of outer spool, interior cartridge spool has the throw over switch that is communicated with secondary valve on valve body.

The purpose of this utility model can also be further perfect by following steps:

The end of spool has horizontal channel outside.When interior opening of valves, when its end cap is pressed to outer valve end, can keep the valve opening of outer spool unimpeded; The throw over switch V comprises throw over switch and gate out switch, and the throw over switch II that wherein enters the mouth has an inlet, and three outlets have T-shaped passage in the rotatable cone-shaped plunger, and in the cone-shaped plunger bottom pressure spring and adjusting screw, socket arranged; The outlet throw over switch, but comprise outlet passage and socket, in the throw over switch V cone-shaped plunger is arranged, in T-shaped passage is arranged, pressure spring is arranged at the cone-shaped plunger bottom, adjusting screw, socket.

The utility model compared with prior art has following advantage: one, energy adaptive system condensing capacity several times and even the tens of times of requirements that working conditions change is big when starting; Its two, have the function of a large amount of exhausting airs and incoagulable gas; Its three, eliminate the steam leakage that fixing wearing and tearing cause; Its four, under not shut-down situation, change, can not stop work and keep in repair, this just gives to produce and brings great convenience with reliable assurance and maintenance; Its five because throw over switch has four passages, one of them can be used for picking up surveys or output signal.

The utility model has 5 width of cloth accompanying drawings, and wherein Fig. 1 is a most preferred embodiment of the present utility model, also can make the accompanying drawing of specification digest.

Fig. 1, total figure of the present utility model;

Fig. 2, inlet throw over switch passage figure;

Fig. 3, outlet throw over switch passage figure;

Fig. 4, main valve and inlet throw over switch sectional drawing;

Fig. 5, secondary valve and outlet throw over switch sectional drawing.

Below in conjunction with accompanying drawing most preferred embodiment of the present utility model is described further:

Most preferred embodiment of the present utility model as shown in Figure 1, the multi-functional drain valve of forming by valve gap, safety check, valve seat, keg float and secondary valve etc., lever III of hinge joint 6. on the keg float of main valve valve pocket bottom, 4. 8. 6. the lever III be connected with the spool III by the bearing pin III, the spool III 4. go up for outer spool III 5., have horizontal channel in its end.4. the 5. tapered cap shape of outer spool III, interior cartridge spool III have the throw over switch V that is communicated with secondary valve on valve body.The throw over switch V comprises throw over switch II and gate out switch II b1, the throw over switch II that wherein enters the mouth has an inlet O, three export a, b, c, rotatable cone-shaped plunger II has T-shaped passage in 1., and the cone-shaped plunger II 1. the bottom have the pressure spring II 3. reach the adjusting screw II 4., the socket II 2.; Outlet throw over switch V b1, but comprise outlet passage O1 and socket V 2., the cone-shaped plunger V is arranged 1. in the throw over switch V, in T-shaped passage is arranged, the cone-shaped plunger V 1. the bottom have the pressure spring V 3., the adjusting screw V 4., the socket V 2..

When heating system started, air entered the throw over switch II by this valve inlet pipe joint, enters respectively by passage a, b, has the main valve III of the hydrophobic resistance steam turbine of mechanical type structure and the secondary valve IV of adjustable temperature control mechanism.Main valve does not possess a large amount of emptying gas abilities, a large amount of air are discharged by way of the O1 passage through b1 by outlet throw over switch V through secondary valve, thing followed water of condensation behind the exhausting air, because system starts under cold conditions, system gives thermogenetic condensation water quantity, the condensing capacity during greater than proper functioning, several times to tens times, condensed water enters the throw over switch II and enters major and minor two valves simultaneously through a, b two passages, is discharged by the O1 passage through a1, the b1 of outlet throw over switch V.This characteristic is to heating, the insulation of large-scale storage tank, and the system that load variations is big has the superiority that existing drain valve is not replaced.

System enters normal operating condition, condensing water temperature rises to the saturation temperature of working pressure correspondence, this moment, condensing capacity reduced to the normal duty condensing capacity, the secondary valve of adjustable temperature control enters cut-off state automatically, water of condensation is through the inlet throw over switch, cross passage a and enter main valve, its effect make the saturation temperature water of condensation be able to by, discharge through the a1 passage of outlet throw over switch.

This valve is by housing I, inlet throw over switch II, main valve III and secondary valve IV, the outlet throw over switch V multipotency drain valve that forms a whole.See Fig. 1.

Inlet throw over switch II in this valve has an inlet O, three outlets, and a, b, c, and rotating cone-shaped plunger II has T-shaped passage in 1., 4. the screw II that the bottom has the pressure spring II 3. to reach adjustable springs pressure sees Fig. 2.When II during 1. in the O position, inlet O communicates with a, b, and left-handed 180 spend O communicates with a, c, cuts off secondary valve IV, c passage socket II 2. can external measuring instrument or short tube with the ponding in facilities for observation operating mode, release equipment and the pipeline.

The outlet throw over switch V of this valve has inlet channel a1, b1, outlet passage O1 and can external measuring instrument or the joint V of waste pipe 2..The cone-shaped plunger V is arranged 1. in the throw over switch V, in T-shaped passage is arranged, 4. the screw V that the bottom has the pressure spring V 3. to reach adjustable springs pressure sees Fig. 3.When V during 1. in the O position, passage a1, b1 communicate with outlet passage O1.The major-minor valve is worked simultaneously.Rotate Right, a1, c1 passage communicate with O1, main valve work, c1 passage socket V 2. can external measuring instrument or short tube to observe the main valve operating mode.Dextrorotation 180 degree b1, c1 communicate with O1, cut off main valve.Secondary valve work, 2. passage socket V can connect measuring instrument, debugs secondary valve control temperature, observes secondary valve operating mode.

Main valve by the valve gap III 1., the safety check III 2., the valve seat III 3., the inner spool III 4., outer spool III 5., the lever III 6., the keg float III 7., 8. the bearing pin III reach the filter for molten III and 9. wait and form.See Fig. 4.Come the main valve III through a of throw over switch II passage and enter valve pocket when water of condensation enters this valve through considering a tube scrubbing, get rid of and hang the 7. interior air of floating drum III by the feet, keg float III buoyancy 7. reduces, being directed at the keg float III 7. sinks, 6. the pull lever III makes the inner spool III 4. open, spool III aperture is 5. got rid of outside the water of condensation warp under the effect of valve inside and outside differential pressure, opens outer spool III then 5., and a large amount of water of condensation are got rid of by valve seat III valve opening 3..When the steam that does not condense, enter the keg float III 7. time that is in valve pocket bottom this moment, discharge the water of condensation in the bucket, 7. the keg float III is floated, promote the lever III and 6. lift, 7. 4. jack-up inner spool III continue to rise with the keg float III, the inner spool III 5. close valve orifice of the outer spool III of jack-up that 4. continues to rise stops steam to efflux.On 3. top of valve seat III, the safety check III is housed 2., the water of condensation of getting rid of with tetrandra root refluxes.Because the outside of outer spool has the runner that is certain helix angle, make water of condensation by the time produce tangential force, promotes outer spool III and 5. rotates, when valve cuts out, 3. reach inner spool to grinding with its inertial force with the valve seat III, the steam leakage that weares and teares and cause is fixed in elimination.

Secondary valve IV by the valve gap IV 1., temperature regulation screw rod IV 2., the temperature-sensing element (device) IV 3., the valve core rod IV 4., the valve seat IV 5. reach the safety check IV 6., 7. the balance spring IV wait part to form to see Fig. 5.When steam heating system started, a large amount of air entered secondary valve through the b of throw over switch II passage, because 3. the sensing element IV shrinks under low-temperature condition, 4. the valve core rod IV are opened, and got rid of a large amount of empty.Equally when starting, a large amount of condensed waters can be got rid of by secondary valve IV, 3. expand with condensate temperature elevated temperature sensing element IV, 4. pulling valve core rod IV closes the valve opening that 5. the valve seat IV goes up, secondary valve enters and ends, when steam enters secondary valve since vapor (steam) temperature be higher than the sensing element IV 3. by temperature, secondary valve IV is ended, and stops steam to be got rid of.The inlet of secondary valve IV is furnished with the safety check IV 6. in case the water of condensation of getting rid of backflow.See Fig. 5, Fig. 1.

The valve body of this valve, valve gap be according to the different available spheroidal graphite cast iron of working pressure, cast steel manufacturing, rapid wears such as spool, the stainless steel manufacturing of erosion part, the brass sheet punching out of filter cylinder and keg float.

Claims

1, a kind of multi-functional drain valve, form by valve gap, safety check, valve seat, keg float and secondary valve etc., it is characterized in that: lever III of hinge joint 6. on the keg float of main valve valve pocket bottom, 4. 8. 6. the lever III be connected with the spool III by the bearing pin III, the spool III 4. go up for outer spool III 5., 4. the 5. tapered cap shape of outer spool III, interior cartridge spool III have the throw over switch V that is communicated with secondary valve on valve body.

2, multi-functional drain valve according to claim 1 is characterized in that: said outer spool III end 5. has horizontal channel.

3, multi-functional drain valve according to claim 1, it is characterized in that: said throw over switch V comprises throw over switch II and gate out switch II b1, the throw over switch II that wherein enters the mouth has an inlet O, three export a, b, c, rotatable cone-shaped plunger II has T-shaped passage in 1., and the cone-shaped plunger II 1. the bottom have the pressure spring II 3. reach the adjusting screw II 4., the socket II 2.; Outlet throw over switch V b1, but comprise outlet passage O1 and socket V 2., the cone-shaped plunger V is arranged 1. in the throw over switch V, in T-shaped passage is arranged, 3. cone-shaped plunger V 1. bottom has the pressure spring V, the adjusting screw V 4., the socket V is 2..