KR101818356B1 - Orifice steam trap apparatus - Google Patents

Abstract

The present invention relates to an orifice steam trap apparatus which is a means to control the backpressure by identifying the discharge pressure when condensate is discharged. The orifice steam trap apparatus is provided to prevent leakage of steam when the condensate is discharged, facilitate the filtering and separation of foreign matters, and enable a steam trap member including a filtering net and an orifice member to be universally used. Accordingly, the orifice steam trap apparatus comprises: an inlet pipe through which the condensate flows; a cylindrical inlet chamber communicated with the inlet pipe; a fixing coupling portion provided to couple and decouple the steam trap member installed at the center of the inlet chamber and including the foreign matter filtering net and the orifice member; a foreign matter discharge hole formed in a lower portion of the inlet chamber and having a foreign matter discharge valve formed therein; a backpressure controlling valve installed towards an orifice outlet of the orifice member; a discharge chamber installed on an upper portion of the orifice member and having a discharge guide path formed on a lower portion of one side thereof; and a temperature measurement sensor sensing the temperature rise of the discharge pipe communicated with the discharge guide path of the discharge chamber so as to control the backpressure.

Description

[0001] The present invention relates to an orifice steam trap apparatus,

The present invention relates to an orifice steam trap device, more specifically, a device for controlling the back pressure by grasping a discharge pressure during discharge of condensed water, preventing leakage of steam during discharge of condensed water, facilitating filtration and separation of foreign matter, The present invention relates to an orifice steam trap device that can be used universally.

Generally, the steam trap device is installed in a steam line such as a heat radiator for heating or a heat exchanger for process, separates steam and condensate by engineering principle and internal structure, and automatically opens / closes the valve to discharge only condensate It is a kind of automatic valve.

That is, steam is supplied to the inside of the steam line of the steam plant, and heat is supplied during the process of condensation through heat exchange with the outside. In this case, the generated condensate is efficiently removed from the steam plant, A steam trap device is used.

When steam leakage occurs in the steam trap device, the latent heat of the steam is not utilized and is released, resulting in loss of energy, and the pressure in the condensate return pipe for recovering the condensed water is increased, and the back pressure for another steam trap device The efficiency of the overall steam utilization is lowered and the life of the valves and fittings may be reduced due to a phenomenon such as a water hammer in the condensate return pipe.

However, in the conventional steam trap apparatus according to the related art, some steam is discharged together with the discharge of condensed water due to its structure, and the steam discharge can not be completely blocked. Therefore, various problems such as the energy loss, the efficiency of steam utilization, and the life of the piping system are deteriorated due to the steam discharge.

The orifice steam trap is designed to keep the orifice hole occupied by the discharged condensate and prevent leakage of steam. This orifice steam trap minimizes steam leakage.

However, in general orifice type steam traps, it is necessary to determine the pressure and the amount of condensation generated at every place where condensate is discharged in a fixed orifice type steam trap in which the pressure of the steam and the condensate quantity generated are to be determined and the orifice of a proper diameter is to be selected It is troublesome to provide various types of steam traps suited to the respective conditions, and there are difficulties that the steam trap can not be universally used because of its various forms and differences in function.

Also, in the conventional steam trap, when the condensed water is collected, the internal driving part operates due to buoyancy, temperature difference, pressure difference, etc. to discharge the condensed water, and steam leakage is increased when the condensed water is discharged due to the lapse of use time and wear.

On the other hand, in the above-described steam trap, all of the strainer is required, and the structure thereof is provided with a cylindrical metal filter net having an inclination angle of about 45 degrees toward the inlet of the condensed water and opening up and down. So that foreign matters such as sand, scale, and rust residue are filtered. The foreign matter that is filtered remains in a form accumulated in the filter net, and adheres to the filter net to interfere with the flow of the fluid. Therefore, There were many hassles such as requiring work.

(Practical Laid-Open Publication No. 0001) KR 20-2000-0020351 (Practical registration document 0002) KR 20-0209394 KR 10-1054216

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a device for controlling a back pressure by a back pressure regulating valve by detecting a discharge pressure upon discharge of condensed water by a temperature measuring sensor, A condenser water inlet chamber, a filter net, an orifice member at the center of the inlet chamber, and a foreign matter discharge valve at the lower portion of the inlet chamber, so that the foreign matter can be easily filtered and separated and the filter net and the orifice member The present invention provides an orifice steam trap device that can be used for general purposes by removing and attaching various types of steam trap members including the steam trap device.

The present invention relates to a steam trap device comprising an inlet pipe for introducing condensed water, an inlet chamber communicating with the inlet pipe and formed in a cylindrical shape, and a steam trap member including a foreign matter filtering network and an orifice member installed at the center of the inlet chamber A back pressure regulating valve provided in the direction of the orifice outlet of the orifice member, and a back pressure regulating valve provided in the upper portion of the orifice member and disposed below the one side And a temperature measuring sensor for adjusting a back pressure by measuring a rising temperature change of a discharge pipe communicating with the discharge guide path of the discharge chamber is provided in the orifice steam trap device.

And a side turning guide hole is formed in the lower end of the other end of the inflow pipe penetrating through the inflow chamber so that the condensed water can be swiveled in one direction of the inflow chamber.

The upper side of the inflow chamber is formed with upper and lower fixed engaging portions so that the inflow chamber and the discharge chamber are divided and divided with reference to the fixed engaging portion and the bottom surface of the inflow chamber is formed to be inclined downward to the center, And a foreign matter discharge port is formed in a portion where the foreign matter discharge port is formed.

Wherein the steam trap member is provided with an upwardly opening pocket and is vertically installed at the center of the inlet chamber, and an orifice member is provided on the upper side of the filter net, and a fastening groove is formed on the upper side of the orifice outlet of the center, And an orifice member having an opening formed therein.

The steam trap member includes a pocket-type filter net having an upward opening, a vortex guiding portion having a vertical tube with a certain gap inside the filter net and a spiral-shaped portion formed on an outer circumferential surface of the vertical tube, and a plurality of conical projections are arranged downward An orifice member having an orifice outlet formed at the center of the conical projection and a fixing member having a fastening mechanism fastening groove and a fastening screw on the upper side of the orifice member are fastened to the fastening portion.

Wherein the steam trap member is provided with a vertical tubular body having a swivel guide portion and an orifice member inside the vertical tubular body, wherein the vertical tubular body is exposed and the lower end of the vertical tubular body is surrounded by a filter net, And a fixing member having a fastening mechanism fastening groove portion and a fastening screw is provided on the upper side of the orifice member so as to be fastened to the fastening engagement portion.

The fixed connection part is formed with a screw connection part having a connection hole and a support step vertically penetrating the upper side of the inflow chamber.

The foreign matter discharge port has a discharge guide hole with a narrow width at the center of the lower floor of the inlet chamber, a width of the lower passage is wide, and a foreign matter discharge valve is formed at the lower side.

The discharge chamber is provided in an upper space portion of the orifice outlet by a cap type coupling member and is detachably coupled to the cap type coupling member, and a plurality of concave and convex portions are formed on the upper surface and the side surface.

A back pressure regulating valve for blocking condensed water from flowing out of the condensed water on the outlet pipe and a temperature measuring sensor for measuring the temperature of the back pressure of the discharge pipe in the outlet direction of the back pressure regulating valve .

INDUSTRIAL APPLICABILITY The orifice steam trap device according to the present invention can improve the filtration efficiency of foreign matter, facilitate the treatment of filtered foreign matter, use various types of steam trap members including a filtering net and an orifice member in general, Efficiency can be increased and steam leakage can be effectively blocked at the time of discharging the condensed water.

1 is a sectional view showing an orifice steam trap device according to the present invention;
2 is a sectional view of a first embodiment showing still another constitution of an orifice steam trap apparatus according to the present invention.
3 is a partially enlarged cross-sectional view showing a configuration of a vertical tube and an orifice member in the configuration of FIG. 2;
4 is a cross-sectional view of a second embodiment showing still another configuration of an orifice steam trap device according to the present invention.
FIG. 5 is a partially enlarged cross-sectional view showing the configuration of the vertical tube and the orifice member in the configuration of FIG. 4; FIG.
FIG. 6 is a sectional view of another embodiment in which an orifice steam trap device according to the present invention is provided with a spiral turning guide protrusion on an inner wall surface of an inlet chamber.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

The present invention relates to a steam trap for discharging condensate generated from a steam facility, comprising: an inlet pipe (10) for introducing condensed water; an inlet chamber (20) communicating with the inlet pipe (10) (30) for separating and coupling the steam trap member (A) including the filter net (40) and the orifice member (50) installed at the center of the inflow chamber (20) A back pressure regulating valve 82 provided in the direction of the orifice outlet 52 of the orifice member 50 and an orifice member 60 provided in the orifice member 50 A discharge chamber 70 formed at an upper side of the discharge chamber 70 and having a discharge guide path 74 formed at a lower side thereof and a discharge tube 80 communicating with the discharge guide path 74 of the discharge chamber 70, A temperature measurement sensor 84 for adjusting the back pressure by measuring a temperature change, There is installed.

The inlet pipe 10 is connected at one end to the steam line (not shown) of the steam facility by screw connection so that the condensed water generated from the steam facility can be introduced into the inlet chamber 20, and the other end is connected to the inlet chamber 20, And the upper side portion.

A side turn guide 12 is formed at a lower portion of the other end of the inlet pipe 10 through the inlet chamber 20 so that condensed water can be swirled in one direction of the inlet chamber 20, And to be able to be pivoted downward from the upper side of the main body 20.

The inlet chamber 20 has a cylindrical shape in which condensed water flows downward from the upper space to the lower space through the inlet pipe 10 so as to be pivotable on the inner wall surface of the cylinder and the upper side of the inlet chamber 20 is fixedly coupled The inlet chamber 20 and the discharge chamber 70 are divided and partitioned with respect to the stationary engagement portion 30. The bottom surface of the inlet chamber 20 is formed to be inclined downward to the center, And a foreign matter discharge port 60 is formed at a portion which can be gathered at the center.

It is also possible to provide a swirling guide protrusion 22 which is spiraled on the cylindrical inner wall surface of the inlet chamber 20 so that the condensed water can be swirled around the inner wall surface of the cylindrical inlet chamber 20 have.

In the process in which the condensed water is circulated in the spiral-shaped turning guide protrusion 22 formed on the inner wall surface of the inlet chamber 20, the centrifugal force acts on the solids such as scale contained in the condensed water, So that it is not contacted with the filter net 40, so that the filter net 40 is prevented from being clogged.

The fixed connection part 30 is formed with a screw connection part 36 having a connection hole 32 and a support step 34 which are vertically passed through the upper side of the inflow chamber 20 and connected to the filter net 40 and the orifice member The steam trap member A is detachably attached to the steam trap member A by screws so that various types of steam trap members A can be used universally.

1, the filtration net 40 is provided in a pocket shape upwardly opened and vertically installed at the center of the inflow chamber 20 so as to be filtered by the filtration net 40. In the inflow pipe 10, The condensed water flowing into the filter chamber 20 is pivoted along the inner wall surface of the lower space of the cylindrical inlet chamber 20 and does not directly touch the filter net 40 so that clogging of the filter net 40 can be minimized.

An upper side of the pocket type filter net 40 is provided with an orifice member 50 and a fastening groove portion 56 for fastening a fastening mechanism such as a wrench is formed on the upper side of the orifice outlet 52 at the center and a fastening screw 58 And the orifice member 50 is provided in the fixing engagement portion 30 so that the filter net 40 and the orifice member 50 are fastened to each other.

2 and 3 show a swirling guide 44 having a spiral protrusion formed on the outer circumferential surface of the vertical tube 42 with a certain gap in the interior of the filter net 40 so that the condensed water flows along the inner wall surface of the cylindrical inlet chamber 20 An orifice member 50 having a plurality of conical protrusions 54 arranged in a multi-stage downward direction and having an orifice outlet 52 at the center of the conical protrusions 54 is provided in the vertical tube 42, And is fixed to the filter net 40 in the fixed engaging portion 30 by using a separate fixing member 55 provided on the upper side of the orifice member 50 with the fastening mechanism fastening groove portion 56 and the fastening screw 58. [ And the orifice member 50 are fastened to each other and can be attached and detached.

 4 and 5 show a vertical tube 42 having the revolution guide 44 and an orifice member 50 inside the vertical tube 42. The vertical tube 42 has vertical A plate-like filter net 40 is provided in such a manner that the periphery thereof is exposed and the lower end of the vertical tube 42 is surrounded and a filter filter 46 made of fine nonwoven fabric or fine metal net is installed inside the filter net 40 And the filtering filter 46 has a filtering function that is finer than that of the mesh of the filtering net 40 so that foreign matter is subjected to primary filtering by the filtering net 40 and secondary filtering by the filtering filter 46 So that the orifice outlet 52 can be minimized by the foreign matter.

The first and second filtering means of the filter net 40 and the filtration filter 46 may be used to remove mucus such as mud generated by mixing rust and foreign matter generated in the pipeline, The filter 46 is subjected to secondary filtering to prevent the orifice member 50 from being clogged because the mucus is dispersed and passed.

The foreign matter discharge port 60 is formed with a discharge guide hole 64 having a narrow width at the center of the lower bottom surface of the inlet chamber 20 and has a wide width to allow foreign matter to be discharged, The valve 62 is formed so as to block the pipeline by the foreign matter discharge valve 62 so that the foreign matter remaining through the discharge guide hole 64 remains and is prevented from flowing back through the discharge guide hole 64, It is preferable that the foreign matter discharge valve 62 is periodically opened so that the foreign matter can be separated and collected.

The back pressure regulating valve 82 is capable of opening and closing the valve by using the operation handle and shutting off the accompanying steam when the condensed water exits through the orifice outlet 52 of the orifice member 50.

The discharge chamber 70 is provided in the upper space portion of the orifice outlet 52 by the cap type coupling hole 70a so that the condensed water passing through the orifice outlet 52 and the re-evaporated steam collide with the upper surface and the side surface of the space portion And the cap-shaped coupling hole 70a is configured to be capable of being disengaged by screwing so that the discharge chamber 70 includes a filter net and an orifice member at the time of opening, So that the steam trapping member A can be separated and engaged.

In addition, a plurality of hemispherical concavo-convex portions 72 are formed on the top and side surfaces of the space portion of the discharge chamber 70 so as to induce the re-condensation due to the impact action of the condensed water at random by the concavo- Quot;

A temperature measuring sensor 84 is provided on the pipe of the discharge pipe 80 to measure the temperature of the back pressure of the condensed water discharged from the discharge chamber 70 and the re-evaporated steam to control the back pressure regulating valve 82 have.

The condensed water generated from the steam facility flows downward into the lower space from the upper space of the cylindrical inlet chamber 20 when the refrigerant flows into the inlet chamber 20 through the inlet pipe 10, A foreign substance such as a scale of solid contained in the condensed water falls due to the vortex generated by the centrifugal force generated by the turning guide portion 44 on the outer circumferential surface of the cylindrical inlet chamber 20 while being swirled along the inner wall surface of the cylindrical inlet chamber 20, So that the foreign matter does not come into direct contact with the filtering net 40 installed at the center portion, and adhesion of foreign matter is minimized, so that the long-term filtering function can be smoothly performed.

The foreign matter collected in the foreign matter outlet 60 is prevented from flowing back through the narrow discharge guide hole 64 and flowing back to the upper side of the inlet chamber 20, It is possible to simplify the separating process by means of opening the opening 62.

Condensed water having passed through the filter net 40 installed in the inlet chamber 20 is recycled from the orifice outlet 52 of the orifice member 50 to the discharge chamber 70 via the back pressure regulating valve 82, Is discharged through a discharge pipe (80) provided with a discharge port (84).

At this time, the steam trap member A including the filter net 40 and the orifice member 50 is fitted to the fixed joint portion 30 provided between the inlet chamber 20 and the discharge chamber 70, Since the filter can be removed and attached using a fastening mechanism such as a wrench, the filter net 40 can be easily cleaned and various types of steam trap members A can be installed selectively. .

1, the steam trap member A composed of the pocket-type filter net 40 and the orifice member 50 or the vertical tubular member 42 inside the filter net 40, as shown in FIGS. 2 and 3, A steam trap member A composed of an orifice member 50 having an orifice outlet 52 formed therein and a fixing member 55 having a fastening screw and having a spiral turn guide portion 44 formed on an outer peripheral surface thereof, And a steam trap member A including a filter net 40 and a filtration filter 46 at the lower end of the steam trap member 42. The steam trap member A can be selectively used.

The condensed water having passed through the orifice outlet 52 is recycled while striking the upper surface and the side surface of the discharge chamber 70 and then discharged to the discharge tube 80 through the discharge guide passage 74. In particular, In the case of a configuration in which a plurality of concave / convex portions 72 are formed on the upper surface and the side surface of the concave / convex portion 72, the condensation action of the concave / convex portion 72 by the impingement portion 72 can effectively induce the recondensing.

The backpressure before the back pressure regulating valve 82 is regulated by the back pressure regulating valve 82 so that the back pressure before the back pressure regulating valve 82 is regulated by the back pressure regulating valve 82. In this case, Is lower than the back pressure of the downstream end and is lower than the front end pressure of the orifice outlet 52. The optimum back pressure reference by the back pressure regulating valve 82 is determined by the temperature measurement sensor 84 on the basis of the saturation temperature of the back pressure And the back pressure regulating valve 82 is opened or closed.

That is, when the living steam leaks through the orifice outlet 52, the temperature sensor 84 senses a temperature change in which the temperature of the discharge pipe 80 rises sharply and applies the detected temperature change to the temperature display device. So that the steam leakage can be blocked by the back pressure regulating valve 82.

As described above, the orifice steam trap device according to the present invention can easily filter and separate foreign matters, can use various types of steam trap members including a filter net and an orifice member in general use, improves the recondensing efficiency of condensed water, The steam leakage can be effectively blocked when the condensed water is discharged.

While the present invention has been described with reference to the exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.

A: steam trap member 10: inlet pipe
12: side turning guide 20: inlet chamber
30: Fixed coupling portion 32: Connection hole
34: Supporting step 36:
40: filter net 42: vertical tube
44: turning guide part 46: filtration filter
50: orifice member 52: orifice outlet
54: conical projection 55: fixing member
56: fastening groove portion 58: fastening screw
60: foreign matter discharge port 62: foreign matter discharge valve
64: exhaust guide hole 70: exhaust chamber
70a: Cap type fitting 72:
74: discharge guide path 80: discharge pipe
82: back pressure regulating valve 84: temperature measuring sensor

Claims (10)

An inlet pipe (10) for allowing condensate to flow,
An inlet chamber 20 communicating with the inlet pipe 10 and formed in a cylindrical shape,
And a swirling guide protrusion (22) spirally formed on a cylindrical inner wall surface of the inlet chamber (20)
A fixed coupling unit 30 for separating and coupling the steam trap member A including the foreign matter filtering net 40 and the orifice member 50 provided at the center of the inlet chamber 20,
A foreign matter discharge port 60 formed at a lower portion of the inflow chamber 20 and provided with a foreign matter discharge valve 62,
A back pressure regulating valve 82 installed in the direction of the orifice outlet 52 of the orifice member 50,
A discharge chamber 70 formed at an upper side of the orifice member 50 and having a discharge guide passage 74 formed at a lower side thereof,
And a temperature measurement sensor (84) is provided for measuring a rise temperature change of the discharge pipe (80) communicating with the discharge guide path (74) of the discharge chamber (70) and controlling the back pressure. The orifice steam trap Device.
The method according to claim 1,
And a side turning guide hole (12) is formed at the lower end of the inlet pipe (10) passing through the inlet chamber (20) so that condensed water can be swirled and guided in one direction of the inlet chamber (20) Steam trap device.
delete The method according to claim 1,
The inlet chamber 20 and the discharge chamber 70 are divided into upper and lower portions of the inlet chamber 20 and the inlet chamber 20, 20. The orifice steam trap device according to claim 1, wherein the bottom surface of the orifice steam trap (20) is inclined downward to the center so that a foreign matter discharge port (60) is formed at a center of the foreign object.
An inlet pipe (10) for allowing condensate to flow,
An inlet chamber 20 communicating with the inlet pipe 10 and formed in a cylindrical shape,
A fixed coupling unit 30 for separating and coupling the steam trap member A including the foreign matter filtering net 40 and the orifice member 50 provided at the center of the inlet chamber 20,
A foreign matter discharge port 60 formed at a lower portion of the inflow chamber 20 and provided with a foreign matter discharge valve 62,
A back pressure regulating valve 82 installed in the direction of the orifice outlet 52 of the orifice member 50,
A discharge chamber 70 formed at an upper side of the orifice member 50 and having a discharge guide passage 74 formed at a lower side thereof,
And a temperature measurement sensor (84) for adjusting the back pressure by measuring a rise temperature change of the discharge chamber (80) communicating with the discharge guide path (74) of the discharge chamber (70)
The steam trapping member A is installed in a vertically opened pocket and is vertically installed at the center of the inlet chamber 20 and has an orifice member 50 on the upper side of the filtering net 40, And an orifice member 50 having a fastening groove portion 56 formed on the upper side of the orifice outlet 52 of the orifice 50 and a fastening screw 58 formed on the outer circumference of the orifice member 50 and fastened to the fastening portion 30. [ Orifice steam trap device.
An inlet pipe (10) for allowing condensate to flow,
An inlet chamber 20 communicating with the inlet pipe 10 and formed in a cylindrical shape,
A fixed coupling unit 30 for separating and coupling the steam trap member A including the foreign matter filtering net 40 and the orifice member 50 provided at the center of the inlet chamber 20,
A foreign matter discharge port 60 formed at a lower portion of the inflow chamber 20 and provided with a foreign matter discharge valve 62,
A back pressure regulating valve 82 installed in the direction of the orifice outlet 52 of the orifice member 50,
A discharge chamber 70 formed at an upper side of the orifice member 50 and having a discharge guide passage 74 formed at a lower side thereof,
And a temperature measurement sensor (84) for adjusting the back pressure by measuring a rise temperature change of the discharge chamber (80) communicating with the discharge guide path (74) of the discharge chamber (70)
The steam trap member A includes a vertically opened pocket type filter net 40 and a vertical tubular body 42 having a certain gap inside the filter net 40 and a spiral- An orifice member 50 having a plurality of conical protrusions 54 arranged in a downward direction and having an orifice outlet 52 at the center of the conical protrusion 54, Wherein the fixing member is provided with a fastening mechanism fastening groove portion and a fastening screw on an upper side of the fastening portion to fasten the fastening portion to the fastening portion.
An inlet pipe (10) for allowing condensate to flow,
An inlet chamber 20 communicating with the inlet pipe 10 and formed in a cylindrical shape,
A fixed coupling unit 30 for separating and coupling the steam trap member A including the foreign matter filtering net 40 and the orifice member 50 provided at the center of the inlet chamber 20,
A foreign matter discharge port 60 formed at a lower portion of the inflow chamber 20 and provided with a foreign matter discharge valve 62,
A back pressure regulating valve 82 installed in the direction of the orifice outlet 52 of the orifice member 50,
A discharge chamber 70 formed at an upper side of the orifice member 50 and having a discharge guide passage 74 formed at a lower side thereof,
And a temperature measurement sensor (84) for adjusting the back pressure by measuring a rise temperature change of the discharge chamber (80) communicating with the discharge guide path (74) of the discharge chamber (70)
The steam trap member A includes a vertical tube body 42 having a turn guide portion 44 and an orifice member 50 disposed inside the vertical tube body 42. The vertical portion of the vertical tube body 42 A filtering filter 46 is provided on the inside of the filtering net 40 and an upper side of the orifice member 50 is fastened to the lower side of the vertical tubular body 42, And a fixing member (55) provided with a mechanism locking groove portion (56) and a fixing screw (58) is provided and fastened to the fixed coupling portion (30).
The method according to claim 1,
Wherein the fixed joint part (30) is formed with a screw hole (36) having a connection hole (32) and a support step (34) vertically passing through the upper side of the inflow chamber.
The method according to claim 1,
The foreign matter discharge port 60 is formed with a discharge guide hole 64 having a narrow width at the center of the lower bottom surface of the inlet chamber 20 and has a wide width and a foreign matter discharge valve 62 Wherein the orifice steam trap device comprises:
An inlet pipe (10) for allowing condensate to flow,
An inlet chamber 20 communicating with the inlet pipe 10 and formed in a cylindrical shape,
A fixed coupling unit 30 for separating and coupling the steam trap member A including the foreign matter filtering net 40 and the orifice member 50 provided at the center of the inlet chamber 20,
A foreign matter discharge port 60 formed at a lower portion of the inflow chamber 20 and provided with a foreign matter discharge valve 62,
A back pressure regulating valve 82 installed in the direction of the orifice outlet 52 of the orifice member 50,
A discharge chamber 70 formed at an upper side of the orifice member 50 and having a discharge guide passage 74 formed at a lower side thereof,
And a temperature measurement sensor (84) for adjusting the back pressure by measuring a rise temperature change of the discharge chamber (80) communicating with the discharge guide path (74) of the discharge chamber (70)
The discharge chamber 70 is provided in the upper space of the orifice outlet 52 by the cap type coupling hole 70a and is detachably coupled to the cap type coupling hole 70a and has a plurality of concave and convex portions 72 Is formed on the bottom surface of the orifice.

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