CN2802253Y

CN2802253Y - Nozzle steam water draining-off apparatus

Info

Publication number: CN2802253Y
Application number: CN 200520060382
Authority: CN
Inventors: 田坤
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-06-29
Filing date: 2005-06-29
Publication date: 2006-08-02
Anticipated expiration: 2015-06-29

Abstract

The utility model discloses a nozzle type steam water trap, which comprises a valve body and a nozzle; a steam inlet pipe of the valve body is coaxially communicated with a water outlet pipe of the valve body through a tiny nozzle chamber, wherein the steam inlet pipe gradually shrinks to the nozzle chamber; the nozzle chamber gradually expands to the water outlet pipe; the nozzle is installed in the nozzle chamber in the mode of close fit; a jet hole in the nozzle is formed by the communication of a shrinking pipe, a venturi pipe and an expanding pipe; a filter screen is installed in the steam inlet pipe of the valve body. The utility model has the advantages of simple structure and reasonable structure. The tiny jet hole makes condensed water quickly pass; simultaneously, the loss of steam is efficiently prevented to achieve the effect of high efficient and energy saving; the nozzle is directly clamped in the nozzle chamber of the valve body, the nozzle do not make relative movement with the valve body, and no abrasion exists between the nozzle and the valve body; therefore, the working performance of the steam trap is stable and the service life can be prolonged.

Description

A kind of nozzle-type steam trap

Technical field

The utility model relates to a kind of steam trap, is meant a kind of nozzle-type steam trap that does not have the motion assembly specifically.

Background technique

Be in the thermodynamic system of thermal source with steam, a large amount of water of condensation that produce in the steam pipe system must be discharged at any time, prevent that the water of condensation gathering from causing corrosion to equipment and pipeline; Meanwhile also to avoid the leakage of steam, to improve steam heat efficient.Therefore the Automatic steam trap Trap of installing in pipeline just must play the double action of " block steam and drain water ".Traditional like product, mainly comprise float-ball type, floating-tube type, orifice-plate type Automatic steam trap Trap etc., because of valve inner all is equipped with the motion assembly, be attended by mechanical motion in the using process, parts produce wearing and tearing, lack, are generally 1-2, maintain and replace rate height working life, and " evaporating, emitting, dripping or leaking of liquid or gas " appears, cause a large amount of losses of the energy.

Summary of the invention

For overcoming the above-mentioned defective of prior art, the purpose of this utility model is to provide the nozzle-type steam trap of a kind of energy-efficient, long service life, reliable performance.

In order to solve above technical problem, technical solution adopted in the utility model is: the valve body that a steam inlet pipe, the coaxial perforation of waste pipe are arranged, be provided with a nozzle chambers between steam inlet pipe and the waste pipe, wherein steam inlet pipe is contracted to nozzle chambers gradually, nozzle chambers is expanded to waste pipe gradually, in the position of waste pipe, be provided with annular diversion belt near nozzle chambers.Drive fit is installed a nozzle in the nozzle chambers, and the spray orifice in the nozzle is formed by collapsible tube, trunnion, three sections UNICOMs of expanding duct.In the steam inlet pipe of above-mentioned valve body, filter screen is installed.

Steam inlet pipe of the present utility model is connected with steam line, dirt removing device is set on pipeline usually, to remove the impurity that blocks spray orifice; Waste pipe of the present utility model is connected with recovery channel.When in the steam inlet pipe that the condensed water and the steam of High Temperature High Pressure enters into valve body, during the collapsible tube place of spray nozzle front end, because fluid is directly proportional with the square root of the density of fluid by the ability of spray orifice, because water than the big hundreds of times of density of vapour, coagulates water under the uniform pressure condition discharge capacity can reach tens to twenties times of steam discharge capacity.Simultaneously, the two density, speed poor of condensed water and steam caused the transmission of the two kinetic energy, heavy and slow condensed water is quickened, light and fast steam then is decelerated, thereby has stopped the loss of steam when making condensed water fast by spray orifice effectively, reaches energy-efficient effect.

In addition, valve body simple in structure, and nozzle directly is placed in the nozzle chambers of valve body, and between valve body relative movement does not take place do not have wearing and tearing to each other, makes the stable work in work of steam trap, and also prolonged working life.

Description of drawings

Fig. 1 is the utility model one embodiment's a structural drawing;

Fig. 2 is the left view of Fig. 1;

Fig. 3,4 is the structural drawing of valve body among Fig. 1;

Fig. 4 is the amplification assumption diagram of nozzle among Fig. 1.

Among the figure: 1, valve body, 2, nozzle, 3, steam inlet pipe, 4, filter screen, 5, diversion belt, 6, waste pipe, 7, the dilatation chamber, 8, nozzle chambers, 9, collapsible tube, 10, trunnion, 11, expanding duct.

Embodiment

Introduce the utility model in detail below in conjunction with accompanying drawing.

With reference to accompanying drawing 3.A valve body 1 is arranged, one end is the steam inlet pipe 3 that is connected with steam line, the other end is the waste pipe 6 that is connected with recovery channel, steam inlet pipe is coaxial with waste pipe, and connect by a tiny cylindrical nozzle chamber 8, wherein steam inlet pipe 3 is contracted to nozzle chambers 8 gradually, and steam inlet pipe is that loudspeaker are contraction-like near the front position of nozzle chambers; The rear end of nozzle chambers 8 is the horn-like dilatation chamber 7 that is expanded to, the dilatation chamber 7 isometrical horn-like tube chambers that extend to expansion, and the water pipe 6 that runs in again, this tube chamber are provided with annular diversion belt 5.The degree of depth of steam inlet pipe and volume are all less than waste pipe.

Referring to Fig. 4.A tiny nozzle 2 that matches with nozzle chambers 8 is arranged, spray orifice in the nozzle is formed by collapsible tube 9,

trunnion

10,11 3 sections UNICOMs of expanding duct, wherein collapsible tube 9 is contracted to trunnion 10 gradually, and trunnion 10 is expanded to expanding duct 11 gradually, and collapsible tube 9 and expanding duct 11 are stepped.

Referring to Fig. 1, nozzle 2 is placed in the nozzle chambers 8 of valve body 1, make it drive fit, and in the steam inlet pipe of above-mentioned valve body, filter screen 4 is installed, promptly become nozzle-type steam trap of the present utility model.

The two ends of the utility model valve body 1 are respectively equipped with outside thread and internal thread, by steam line and the condensed water recovery channel of being threaded.

Claims

1, a kind of nozzle-type steam trap, a valve body (1) of bringing steam pipe (3), waste pipe (6) into is arranged, it is characterized in that: above-mentioned steam inlet pipe (3) and the coaxial perforation of waste pipe (6), the centre is a tiny nozzle chambers (8), above-mentioned steam inlet pipe (3) is contracted to nozzle chambers (8) gradually, and nozzle chambers (8) is expanded to waste pipe (6) gradually; The interior drive fit of nozzle chambers (8) is installed a nozzle (2), and the spray orifice in the nozzle is formed by collapsible tube (9), trunnion (10), (11) three sections UNICOMs of expanding duct; In the steam inlet pipe (3) of above-mentioned valve body (1), filter screen (4) is installed.

2, nozzle-type steam trap according to claim 1 is characterized in that: above-mentioned waste pipe (6) is provided with annular diversion belt (5) near the position of nozzle chambers (8).

3, nozzle-type steam trap according to claim 1 and 2, it is characterized in that: the collapsible tube (9) of said nozzle (2) is contracted to trunnion (10) gradually, trunnion (10) is expanded to expanding duct (11) gradually, and collapsible tube (9) and expanding duct (11) are stepped.

4, nozzle-type steam trap according to claim 1 and 2 is characterized in that: the degree of depth of the steam inlet pipe (3) of above-mentioned valve body (1) and volume are all less than waste pipe (6).

5, nozzle-type steam trap according to claim 3 is characterized in that: the degree of depth of the steam inlet pipe (3) of above-mentioned valve body (1) and volume are all less than waste pipe (6).