CN87216637U

CN87216637U - Expansion effluent valve

Info

Publication number: CN87216637U
Application number: CN 87216637
Authority: CN
Inventors: 王长林
Original assignee: Individual
Current assignee: Individual
Priority date: 1987-12-14
Filing date: 1987-12-14
Publication date: 1988-10-05

Abstract

Disclosed is an expansion effluent valve belonging to the steam-blocking water-draining valve of the heating radiator to provide a new structure of the effluent valve, comprising a valve body, a valve core and a regulation blocking plug. The overflowing of the steam and high temperature water is blocked by mainly making use of the thermal expansion principle of the material of the valve core. The valve core compacts to drain the lower temperature water when the water temperature is low and the steam blocking and water draining effect is outstanding. The utility model has the advantages of simple structure, simple manufacture, energy saving and uneasy damaging. Compared with the original effluent valve, the cost is reduced by more than 70%.

Description

Expansion effluent valve

Telescopic drain valve belongs to the parts steam trap of using on the heating radiator.

Used drain valve has multiple on the heating radiator at present, as: the bimetallic strip drain valve, the garden disk-type steam trap, lever float bead drain valve, bell float type drain valve, various drain valves such as vapor pressure formula drain valve, be widely used in the various heat supply heating systems, play the block steam and drain water effect, their general structures are comparatively complicated, cost is also higher, particularly generally be used for the garden disk-type steam trap that steam heater is wrapped, the breath formula is hydrophobic between employing, with between breath emit part steam, the special rapid wear of this drain valve in addition, hydrophobic effect is easily out of control, causes and emits high-temperature steam continuously, has wasted a large amount of heat energy and environment is caused certain harm, this drain valve also is difficult to maintenance, need more renew drain valve in case damage.

The utility model will provide a kind of drain valve, and is simple in structure, easily processing, and hydrophobic effect is remarkable, and not fragile, cost is low, and is easy for installation, and steam and high-temperature water are not overflowed, and reaches the energy saving purpose.

The structure of telescopic drain valve is seen accompanying drawing 1, and it is by valve body (1), spool (2) and regulate plug (3) formation.Valve body (1) is ironcasting or guiding principle product, and its profile is a hexagon for one section, and another section is Cylinder or other polyhedron, and the utility model adopts Cylinder.Inner two is the mantle fiber hole than large diameter, the hole of the less internal diameter of the centre section of having, and this Kong Chaoyuan cylindricality one end has little garden edged surface b, three holes communicate and make valve body (1) become the cavity of connection, consider that from security standpoint valve body (1) wall thickness should be no less than 5mm, sees accompanying drawing 2.The profile of spool (2) is that an end is the thimble shape, thimble face and little garden edged surface b coincide, the centre is the cylinder of big external diameter, its diameter is less than the 2-5mm of valve body (1) garden styletable diameter of bore, the other end is the cylinder of less external diameter, this end along the hole that a certain depth is arranged on the axis outside intermediate section is big on the diametric plane to perpendicular to axial direction, beating one or several hole And and axis centre hole communicates, see accompanying drawing 3, the material of spool (2) is with nylon rod bar or plastics, and this plastics fusing point is greater than 200 ℃, shrinkage is 0.01～0.015, and thermal expansion coefficient is 5 * 10 ^-5～30 * 10 ^-5Between.Regulating plug (3) processes for ironcasting or guiding principle spare, outside screw and valve body (1) garden styletable internal thread cooperate, regulate the hole of the end processing certain depth of plug (3), the thin end external diameter of this hole internal diameter and spool (2) is consistent, spool (2) is inserted, the other end center has a less hole And to communicate with former macropore, this end surfaces has a bar-shaped trough, so that turn adjusting, see accompanying drawing 4, during assembling, spool (2) butt end is inserted adjusting plug (3) macropore, insert from valve body (1) garden styletable again, turn then and regulate plug (3), promote inwardly motion of spool (2), make thimble face and Xiao Yuan angle b keep very small distance a, a is generally between 0.5～1.5mm.During installation, telescopic drain valve hexagonal end is screwed on the weep hole of radiator, after steam or high-temperature-hot-water enter drain valve, make spool (2) expanded by heating, thimble face and little garden edged surface b coincide, (being that a is 0), make steam or the high-temperature water can not spill and leakage, when water temperature reduced, valve core (2) shrinks, between thimble face and little garden edged surface b one fixed gap (a＞0) is arranged, low temperature water discharges by spool (2) and adjusting plug (3) in the middle of entering valve body (1) by the space again.Regulate plug (3) can regulate, make block steam and drain water (low temperature) effect reach optimum efficiency according to the temperature of steam temperature or water temperature, with energy saving.

Telescopic drain valve simple in structure, part is made easily in addition, and assembling is simple, easily regulates, easy to use, reduce raw materials consumption greatly than former drain valve, cost reduces more than 70%, and this drain valve is not fragile, easy to maintenance, the block steam and drain water effect is remarkable, has especially saved the energy.

The telescopic drain valve that the inventor makes, valve body (1) and adjusting plug (3) are ironcasting, mantle fiber is made by standard, valve body (1) length overall is 110mm, middle path chamber diameter is 12mm, length is 10mm, the internal diameter at two is 3/4 o'clock, spool (2) is to be made by nylon rod bar 1010, and middle garden cylinder has the hole of a φ 6 to be connected with center hole, and butt diameter is 20mm, thin end is 16mm, the aperture of regulating plug (3) is an osculum, and diameter is 8mm, and this drain valve can be installed on the radiator of steam heating or hot-water heating.

Claims

1, telescopic drain valve is a kind of steam trap that is used on the heating radiator, it is characterized in that: it is by valve body (1), spool (2) and adjusting plug (3) constitute, and valve body (1) profile is a hexagon for one section, and another section is cylindrical, inside is to be communicated with cavity, two is the mantle fiber hole than large diameter, the hole of the less internal diameter of the centre section of having, and there is a roundlet edged surface b in this hole towards cylindrical end, spool (2) profile one end is the thimble face, and this thimble face and roundlet edged surface b match.The stage casing is the big cylindricality of external diameter, the other end is the less cylindricality of external diameter, butt end has the hole of individual certain depth along axis, at least 1 the And in hole on the face of stage casing communicates perpendicular to spool (2) axis And and axis centre hole, mantle fiber and valve body (1) the cylindrical end internal thread hole of regulating plug (3) external diameter cooperate, the big aperture at two ends communicates, and consistent with the less styletable external diameter of spool (2) than macropore, less hole end surface has a bar-shaped trough, spool (2) butt end inserts regulates plug (3) macropore, insert the valve body cylindrical end again, turn then and regulate plug (3), making the gap a between thimble face and the roundlet edged surface edged surface is 0.5～1.5mm, spool (2) is processed with nylon rod bar, the molten point of this material should be greater than 200 ℃, and shrinkage is 0.01～0.015, and thermal expansion coefficient is 5 * 10 ^-5～30 * 10 ^-5Between.

2, telescopic drain valve according to claim 1 is characterized in that: the cylindrical end of valve body (1) also can be the polygonal cylinder.

3, telescopic drain valve according to claim 1 is characterized in that: the diameter of the big external diameter number of spool (2) is less than the 2-5mm of valve body (1) cylinder diameter of bore.

4, telescopic drain valve according to claim 1 is characterized in that: spool (2) material therefor also can be plastics.