CN205208128U

CN205208128U - Can adjust trap structure of flowing back temperature

Info

Publication number: CN205208128U
Application number: CN201520659657.9U
Authority: CN
Inventors: 熊金强; 刘翠玲; 陈露; 彭茜; 薛嘉日; 于爱平; 廖东明; 郭涛; 庄文德; 王喜花; 张怀东; 蔡勇; 尤文卿; 魏根良; 候言磊; 穆强; 陈振强; 张强; 沈登海; 李锡铜
Original assignee: URUMQI JINSUIJIAN TECHNOLOGY DEVELOPMENT Co Ltd
Current assignee: URUMQI JINSUIJIAN TECHNOLOGY DEVELOPMENT Co Ltd
Priority date: 2015-08-29
Filing date: 2015-08-29
Publication date: 2016-05-04
Anticipated expiration: 2025-08-29

Abstract

The utility model discloses a steam trap, the shell is by the last upper end water inlet that is equipped with in proper order under to, and cinder notch, the temperature stress piston, vice from lubrication sealing of meeting an emergency, is arranged at self -cleaning filter to the lower extreme delivery port. The valve body is equipped with the thermal resistance sensor mounting hole. The utility model discloses rational in infrastructure, manufacturing and maintenance cost are low, and it is convenient to overhaul, the filter effect is good, has solved because of the problem that impurity card plug valve core messenger trap became invalid, and the long service life of valve body, flowing back temperature adjustable can adapt to the requirement of different lime set discharge velocity and temperature.

Description

A kind of drain valve structure that can adjust discharge opeing temperature

Technical field the utility model relates to a kind of Automatic steam trap Trap field, relates to a kind of self-lubricating seal secondary.

Shortcoming more or less or deficiency is all there is, such as: 1. the bellows STEAM TRAP of thermostatic often unevenly produces non axial thrust because bellows is heated, and causes Sealing deflection finally to cause drain valve to lose efficacy in the various forms drain valve that background technique is at present disclosed; Although 2. thermodynamic trap parts count is few but machining accuracy is high, energy-saving effect is the poorest, could close, the heat energy of large losses when the drain valve of the type only has steam to spill, movement parts can cause the wearing and tearing of sealing surface because of long-term and sealing surface collision in addition, and air leakage further increases; 3. freedom or lever floating ball type draining valve service behaviour are relatively better, but its volume is comparatively large, and heat dissipating capacity is relatively many, and under the high occasion of pressure can not be used in, internal structure more complicated, number of spare parts is many; 4. be inverted cartridge type drain valve internal structure complicated, volume is relatively large, and be relatively applicable to steady working condition, Subcoold temperature is low; 5. dual metal type drain valve internal structure is complicated, and number of spare parts is many, needs good sealing surface and Sealing.

In addition: 1. the draining of above-mentioned drain valve institute is saturation water; 2. the Sealing of metal and accurately machined sealing surface is all had; 3. filtering effect is poor, the ratio nearly 29% find in actual use, caused drain valve to damage because filtering effect is bad.

Known hydrophobic structure, tube edge corrosion product may affect spool and close, and solution all adopts and before drain valve, adds y-type filter or drain valve self adds a filter screen.Cross the plane filter screen device that current direction has angle.The defect corrosion product stackeding space that this filtrating equipment manifests at the scene is too small, and the moulding of filter grid pore design is excessive, passing hole effusion cross corrosion, erosion product, still may produce erosion, jam to valve core sealed cover.

Summary of the invention drain valve Temperature Field Design, drain valve, according to steam power design, should be in the condensation end before steam tube: namely some vapor is due to heat exchange, heat energy dissipation, when close to hydrophobic structure, according to Thermodynamic Law, condensation heat release (maintaining heat balance).Drain valve gathers certain condensed water, or gathers certain temperature difference (lower than tube edge equilibrium dew point 15-30 DEG C).When drain valve reaches and starts the action transition point of draining, all known drain valves, for the reciprocal effect of the temperature field relevant to this transition point and thermal insulation layer, all do not have quantitative data to the relation of coagulation and valve event frequency.

Known drain valve scene temperature pick-up transducers, is required of thermocouple, and existing design rule standard shows that this temperature transducer is compared with thermal resistor, has significant limitation in some.

A kind of drain valve structure that can regulate discharge opeing temperature of the utility model, is characterized in that: there is water intake upper end, lower end water outlet, is provided with self-cleaning filter, slag exhausting mouth, temperature stress strain piston, self-lubricating seal pair from top to bottom successively.Valve body is provided with thermal resistance sensor mounting hole.

Have self-cleaning filter in the entry design of valve, it is characterized in that the direction of condensed fluid or vapor movement direction and liquid or steam flow spool is the angle of 30-89 degree, the current of water intake enter with whirlpool, rinse filter screen.

Corrosion, erosion slag fall to deslagging chamber by the effect of gravity and centrifugal force, regular deslagging.

The thermal resistance sensor mounting hole preset provides data platform basis for the distribution that may need or monitoring.

It is secondary that valve core sealed cover and ball sealer adopt the engineering plastics of PEK class and Stainless Steel Ball to form a kind of self-lubricating seal.The Channel design structure of liquid outlet opening is that vortex type makes each spool, doing the rotation tangential motion of opening fluid causes valve ball to rotate positioning at random, thus extending the online service life of seal combination, the friction factor of ball core and valve seat is low, and selflubricating self-grind characteristic is good.

Drain valve can regulate lime set exhaust temperature by lime set temperature adjusting bolt.Lime set temperature adjusting bolt adopts the temperature stress strain piston of automobile thermostat, the temperature that can set opens intensity TA(definite value) control poor ± 2.5 DEG C, owing to being mass, specialized manufacturing, so constant product quality, controlled, for adapting to the requirement of different lime set mass rate of emission and temperature.

Valve design has prestressing force adjust structure, to adjust for 2 times according to online reality, reaches better effect.

Combination, for huge discharge process conditions, single entrance can mate three outlets simultaneously.The import and export of valve are by the multiple interfaces form such as NBS pipe arrangement flange or pipe thread.

For the Temperature Field Control thermal insulation layer that drain valve is customized, make the thermo parameters method of valve itself consistent with drain valve operating movement principle: namely inflow direction temperature is high, drainage direction temperature is low, and when ambient temperature-25 DEG C of line temperature 138 DEG C, the outer naked surface temperature of thermal insulation layer is less than or equal to-5 DEG C.

Actual execution architecture: bottom is polyurethanes foaming thermal-insulating, average thickness 100mm, skin is flame-retardant polystyrene.

Accompanying drawing explanation

Fig. 1 drain valve planing surface figure

Fig. 2 drain valve plan view

1. drain valve body 2. drain valve sewage draining exit 3. deslagging chamber 4. drain valve self-cleaning filter 5. lime set tangential inlet

6. drain valve self-cleaning filter presses 7. temp probe entrance 8. valve plug of drain valves (PEK plastics) 9. spool turbine self-cleaning stator 10. valve ball 11. spool sphere positioning seat 12. Returnning spring 13. lime set emptying duct thermostat 14. water outlet

The emptying runner of 15. lime set temperature adjusting bolt 16. lime set.

Embodiment

Now the invention will be further described with preferred embodiment by reference to the accompanying drawings. and these accompanying drawings are the schematic diagram simplified, and basic structure of the present invention is described in a schematic manner, and therefore it only shows the formation relevant with the present invention.

During driving, drain valve temperature is low, and sealing pair is opened, and when condensed water is entered by tangential inlet 5, is entered by filter screen 4.Current scour valve ball 10 physical action, ball sealer does not stop to rotate, and realizes selflubricating, and when ball sealer contacts with sealing surface, can not clash into, thus increase the service life with single point.Cold water is flowed out by water outlet 14.

When the steam exceeding setting temperature or hot water by time, temperature stress strain piston 13 expands, by ball sealer and sealing surface 8(PEK material) fit, reach neither leakage hot steam and also do not waste the effect of hot water.

The residue filtered out, concentrates on deslagging chamber 3 by gravity and eddy current effect, periodic cleaning.

Reserved temp probe entrance 7 on drain valve body, for the distribution that may need or monitoring provide data platform basis.

Claims

1. one kind can regulate the drain valve structure of discharge opeing temperature, it is characterized in that: comprising upper end has water intake, lower end water outlet, be provided with self-cleaning filter, slag exhausting mouth, temperature stress strain piston, self-lubricating seal pair from top to bottom successively, valve body is provided with thermal resistance sensor mounting hole.

2. a kind of drain valve structure that can regulate discharge opeing temperature according to claim 1, it is characterized in that: the direction of condensed fluid or vapor movement direction and liquid or steam flow spool is the angle of 30-89 degree, the current of water intake enter with whirlpool, rinse filter screen.

3. a kind of drain valve structure that can regulate discharge opeing temperature according to claim 1, is characterized in that: corrosion, erosion slag fall to deslagging chamber by the effect of gravity and centrifugal force, regular deslagging.

4. a kind of drain valve structure that can regulate discharge opeing temperature according to claim 1, is characterized in that: the thermal resistance sensor mounting hole preset provides data platform basis for the distribution that may need or monitoring.

5. a kind of drain valve structure that can regulate discharge opeing temperature according to claim 1, is characterized in that: it is secondary that valve core sealed cover and ball sealer adopt the engineering plastics of PEK class and Stainless Steel Ball to form a kind of self-lubricating seal.

6. a kind of drain valve structure that can regulate discharge opeing temperature according to claim 1, is characterized in that: drain valve can regulate lime set exhaust temperature by lime set temperature adjusting bolt.