JP2002130609A - Moisture-content separation heater - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a moisture-content separation heater, in which efficiency of moisture-content separation is improved. SOLUTION: The moisture-content separation heater is provided with a drum body 1, manifolds 7, outlets 7a, a moisture-content separation element 8, and flow-rate controllers 21. The manifolds 7 are equipped in the inside of the body, and moisture-containing steam is supplied to the insides thereof. The outlets 7a are formed to the manifolds to let out the steam to the outside of the manifolds. The moisture-content separating element 8 is provided in the inside of the drum body 1 to separate the moisture content in the steam flowing from the outlets. The flow rate controllers 21 make the flow rate of the steam uniform at the position of the separating element 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a moisture separation heater, and more particularly, to a moisture separation heater applied to a nuclear power plant or the like.

[0002]

2. Description of the Related Art This type of moisture separation heater is disclosed in JP-A-8-285214 and JP-A-10-61906.
The following technology described in Japanese Patent Application Laid-Open No. H10-260, is known.

[0003] A moisture separation heater may be installed between a high-pressure steam turbine and a low-pressure steam turbine of a nuclear power plant. This moisture separation heater separates the moisture in the exhaust of the high-pressure steam turbine and reheats the exhaust to superheated steam, thereby reducing the outlet wetness of the low-pressure steam turbine, preventing erosion and preventing erosion. To improve the thermal efficiency of the turbine plant.

A low-temperature reheat steam introduced from a high-pressure steam turbine is transferred from a low-temperature reheat steam inlet pipe provided at a lower portion of a horizontal cylindrical body (see reference numeral 1 in FIG. 5) of a moisture separation heater. Let it flow inside. The low-temperature reheated steam is directly colliding with a U-shaped cross-section receiving plate provided in the horizontal cylindrical body above the low-temperature reheat steam inlet pipe, and divided into two left and right directions. , And guided by the steam inlet partition plate and the tube bank side plate to flow to the upper part in the horizontal cylindrical body.

The direction of the low-temperature reheated steam moved to the upper portion of the horizontal cylindrical body is changed to the longitudinal direction of the horizontal cylindrical body, and the steam distribution passage above the steam distribution passage plate (the manifold shown in FIG. 7), and further flows into the moisture separation element (see the moisture separation element 8 in FIG. 5) from the opening (see the outlet 7a in FIG. 5) of the vapor distribution passage plate. A heating tube group (see a tube group 10 in FIG. 5) is provided inside the horizontal cylindrical body so as to extend in the longitudinal direction, and the steam separated from the moisture by the moisture separating element is supplied to the heating tube group. Is heated.

[0006] The heated steam flows out of a high-temperature reheated steam outlet pipe at the upper part of the horizontal cylindrical body and is guided to a low-pressure steam turbine. On the other hand, the water separated by the moisture separating element is discharged from the drain outlet.

[0007]

As shown in FIG. 5, in the moisture separating heater, the moisture is separated by using a large number of corrugated moisture separating elements 8. If the vapor flow rate at the front surface 8a of the moisture separating element 8 exceeds the limit value, the droplets re-scatter and the moisture cannot be completely removed.

At present, the lower part 8 of the moisture separating element 8
It is considered that there is a region where the steam flow rate is high at b and partially exceeds the critical flow rate. According to the knowledge of the present inventor, among the steam flowing out from the outlet 7a of the manifold 7, the speed of the steam moving particularly along the inner wall surface 1a of the horizontal cylindrical body 1 is high, and the speed of the steam flowing at the high speed is high. In the lower part 8b of the moisture separation element 8 located on the extension of the flow path, it is considered that the critical flow velocity may be exceeded. If the flow velocity exceeds the limit flow rate, the moisture of the steam is not removed by the moisture separating element 8.

[0009] It is desired that the flow rate of the front surface of the moisture separation element be made uniform to reduce the size of the element and the body (the same maximum flow rate). There is a need for a moisture separation heater in which the vapor flow velocity at the front surface of the moisture separation element is made uniform, the portion exceeding the critical flow velocity is reduced, and the efficiency of separating moisture is improved. There is a need for a moisture separation heater that reduces the load on the moisture separation element and improves the efficiency of separating moisture. There is a demand for a moisture separation heater in which the load on the moisture separation element is reduced by removing a portion of the moisture upstream of the moisture separation element to improve the efficiency of separating moisture.

An object of the present invention is to provide a moisture separation heater in which the efficiency of separating moisture is improved. Another object of the present invention is to provide a moisture separation heater in which the steam flow rate at the front of the moisture separation element is made uniform, the portion exceeding the critical flow rate is reduced, and the moisture separation efficiency is improved. is there. Still another object of the present invention is to provide a moisture separation heater in which the load on the moisture separation element is reduced and the efficiency of separating moisture is improved. Still another object of the present invention is to provide a moisture separation heater in which the load on the moisture separation element is reduced by removing a portion of the moisture upstream of the moisture separation element to improve the efficiency of separating moisture. It is to provide. Still another object of the present invention is to realize a downsized element by uniformizing the flow velocity distribution while keeping the maximum flow velocity in front of the moisture separation element constant, and to downsize the moisture separation heater.

[0011]

Means for solving the problem are described as follows. The technical matters corresponding to the claims in the expression are appended with parentheses (), numbers, symbols, and the like. The numbers, symbols, etc. clarify the correspondence / correspondence between the technical matter corresponding to the claim and the technical matter of at least one of the plural forms of implementation. It is not intended to show that technical matters are limited to the technical matters of the embodiments.

[0012] The moisture separation heater of the present invention comprises a body (1).
And a manifold (7) provided in the body (1) and supplied with steam containing moisture therein; and the manifold (7) formed in the manifold (7).
Outlet (7) for allowing the steam to flow out of the
a) a moisture separating element (8) provided inside the body (1) and separating the moisture contained in the steam from the steam flowing out of the outlet (7a);
A flow rate control unit (21) for equalizing the flow rate of the steam at the position of the moisture separation element (8).

The moisture separating heater of the present invention comprises a body (1) formed in a cylindrical shape, and a manifold (1) provided inside the body (1) and supplied with steam containing moisture therein. 7), an outlet (7a) formed in the manifold (7) for allowing the steam to flow out of the manifold (7), and an outlet (7a) provided inside the body (1). A moisture separating element (8) for separating the moisture contained in the steam from the steam flowing out of 7a), and a baffle plate (21), wherein the steam flowing out of the outlet (7a) is: The steam flowing along the inner peripheral surface (1a) of the body (1) before reaching the moisture separation element (8), and the baffle plate (21) flows along the inner peripheral surface (1a). The moisture separation element Flow rate of the steam at the location of bets (8) is provided so as to be uniform.

[0014] The moisture separation heater of the present invention comprises a body (1).
And a manifold (7) provided in the body (1) and supplied with steam containing moisture therein; and the manifold (7) formed in the manifold (7).
Outlet (7) for allowing the steam to flow out of the
b), and a moisture separation element (8) provided inside the body (1) and separating the moisture contained in the steam from the steam flowing out of the outlet (7b), The outlet (7b) is connected to the outlet (7
b) the steam flowing out of the body (1) collides with the inside of the body (1) to reduce the flow velocity of the steam, so that the flow velocity of the steam at the position of the moisture separation element (8) is made uniform. Have been.

The moisture separating heater of the present invention comprises a body (1)
And a manifold (7) provided in the body (1) and supplied with steam containing moisture therein; and the manifold (7) formed in the manifold (7).
Outlet (7) for allowing the steam to flow out of the
d), and a moisture separating element (8) provided inside the body (1) and separating the moisture contained in the steam from the steam flowing out of the outlet (7d). The outlet (7d) is provided on the side of the manifold (7) opposite to the side on which the moisture separation element (8) is provided, and the flow path of the steam reaching the moisture separation element (8). The length is long so that the flow rate of the steam at the position of the moisture separation element (8) is made uniform.

The moisture separating heater of the present invention comprises a body (1)
And a manifold (7) provided in the body (1) and supplied with steam containing moisture therein; and the manifold (7) formed in the manifold (7).
Outlet (7) for allowing the steam to flow out of the
f), a moisture separating element (8) provided inside the body (1) and separating the moisture contained in the steam from the steam flowing out of the outlet (7f);
A pipe (7e) provided so as to penetrate from the vicinity of the center of the cross section of the manifold (7) to the outside of the manifold (7), and the outlet (7f) is provided at an opening of the pipe (7e). It is.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a moisture separation heater according to the present invention will be described with reference to the accompanying drawings. In the present embodiment, the same components as those described above are denoted by the same reference numerals, and detailed description thereof will be omitted.

In the present embodiment, the following structure is used to make the steam flow velocity in front of the moisture separation element uniform and to reduce the region exceeding the critical flow rate, or to provide a pre-stream upstream of the moisture separation element. By removing moisture, the moisture separation efficiency of the moisture separation element is increased.

Referring to FIG. 1, a first embodiment of a moisture separation heater according to the present invention will be described. As shown in FIG. 1, the moisture separation heating shown in FIG. 5 is provided in that the baffle plate 21 is provided and a drain vent (not shown) for discharging the moisture removed by the baffle plate 21 is provided. Different from vessels.

It is considered that, of the steam flowing out of the outlet 7a of the manifold 7, the flow velocity of the air flow (steam) flowing along the inner wall surface (inner peripheral surface) 1a of the horizontal cylindrical body 1 is relatively high. . For this reason, the baffle plate 21 is provided on the inner wall surface 1a located between the outlet 7a of the manifold 7 and the moisture separation element 8.

The baffle plate 21 is provided on the flow path of the steam flowing out of the outlet 7a, particularly on the flow path of the steam flowing along the inner wall surface 1a. The baffle plate 21 disturbs the air flow propagating through the inner wall surface 1a, so that the flow velocity at the front surface 8a of the moisture separation element 8 is made uniform. When the steam collides with the baffle plate 21, the flow velocity of the steam decreases, and the portion of the front surface 8a of the moisture separation element 8 exceeding the critical flow velocity is minimized.

Here, the critical flow velocity refers to the maximum flow velocity of steam within a range in which the moisture separation element 8 can remove moisture when the moisture separation element 8 removes moisture from steam. When the steam flow rate is slightly lower than the limit flow rate, the moisture removal effect of the moisture separation element 8 is maximized. Therefore, care must be taken so that the provision of the baffle plate 21 does not reduce the steam flow velocity at the front surface 8a of the moisture separation element 8 too much.

When the steam collides with the baffle plate 21, a part of the moisture contained in the steam is removed by the baffle plate 21. Since the steam from which moisture has been removed by the baffle plate 21 is supplied to the moisture separation element 8, the load on the moisture separation element 8 is reduced accordingly, and as a result, the efficiency of separating moisture is improved. .

The moisture removed by the baffle plate 21 accumulates between the baffle plate 21 and the inner wall surface 1a. The moisture is discharged from a drain vent (not shown).

Further, in the configuration shown in FIG.
Although the removed moisture is temporarily stored between the baffle plate 21 and the inner wall surface 1a, the present invention is not limited to this configuration. That is, the baffle plate has a function of lowering the flow velocity of steam, a function of disturbing the air flow, and a function of temporarily holding the removed moisture by the baffle plate itself (not between the inner wall surface 1a). Can be configured.

Further, the baffle plate is further provided so that the flow of steam is guided to a predetermined route by the baffle plate so that the steam flow path leading to the moisture separation element 8 is formed in a route of a desired shape. Can be configured. The predetermined route can be arbitrarily formed in consideration of various conditions such as the flow rate of steam, the action of removing moisture from steam, the temperature and pressure of steam, and the like.

Next, a second embodiment of the moisture separation heater of the present invention will be described with reference to FIG.

As shown in FIG. 2, in the second embodiment, an oblique blowing structure is employed. As shown in FIGS. 5 and 1, conventionally, the angle of the outlet 7a from the manifold 7 is inclined from 0 to 20 degrees from the vertical downward direction (20 degrees in FIGS. 5 and 1). On the other hand, in the second embodiment, the angle of the outlet 7b of the manifold 7 is set to 40 degrees.
Increase to ~ 60 degrees.

The moisture separating element 8 is supplied from the outlet 7b.
By reducing the flow rate of the steam flowing directly to the lower part 8b of the humidifier, uniformization of the flow velocity of the steam at the front surface 8a of the moisture separation element 8 is achieved. That is, by setting the angle of the outlet 7b such that the outlet 7b faces the inner wall surface 1a more, at least a part of the steam flowing out from the outlet 7b hits the inner wall surface 1a and is decelerated. Moves along the inner wall surface 1a. For this reason, it is possible to suppress the phenomenon that the steam flow velocity transmitted along the inner wall surface 1a is relatively high as compared with the configuration of FIG.

By making the angle of the outlet 7b larger than that of the outlet 7a shown in FIGS. 5 and 1,
In the manifold 7, a part of the moisture contained in the steam can be removed. Moisture (droplets) contained in the vapor in the process of passing through the manifold 7 is changed to the inner wall surface 7c of the manifold 7
, And moisture adheres to the inner wall surface 7c. The moisture moves to the bottom of the inner wall surface 7c by its own weight. As shown in FIG. 5, when the outlet 7a is provided at the lower position, moisture separated in the manifold 7 and near the bottom of the inner wall surface 7c flows out from the outlet 7a together with other steam. Resulting in.

On the other hand, in the second embodiment, the angle of the outlet 7b is set closer to the horizontal direction than that of the outlet 7a, so that the outlet 7b is separated in the manifold 7 and the bottom of the inner wall surface 7c. The moisture in the vicinity does not flow out from the outlet 7b together with other steam, and the inner wall surface 7
c can be kept near the bottom. This allows
Part of the moisture can be removed in the manifold 7.

Since the steam from which moisture has been removed by the inside of the manifold 7 is supplied to the moisture separating element 8, the load on the moisture separating element 8 is reduced accordingly, and as a result, the moisture separating element 8 is removed. Efficiency is improved.

The moisture removed in the manifold 7 is
It temporarily accumulates at the bottom of the inner wall surface 7c of the manifold 7.
The moisture is discharged from a drain (not shown) provided in the manifold 7. In the manifold 7, the outlet 7b is provided at a position (angle) where moisture (drain) accumulated near the bottom of the inner wall surface 7c and drainage are avoided. Thus, the drain does not flow out from the outlet 7b together with other vapor.

In order to enhance the moisture removing effect of the manifold 7 itself, for example, the droplets (moisture contained in the vapor) flowing out of the outlet 7b collide with the inner opening edge of the outlet 7b. Collision part (not shown)
Can be provided. The function of separating moisture in the manifold 7 is improved by colliding the droplet with the collision section. The function of this collision part is similar to the baffle plate,
In consideration of the exhaust efficiency of the steam from the manifold 7, the steam flow rate, and the like, the setting is made so that the turbulent flow in the manifold 7 is not generated more than necessary.

The size, shape and number of the outlets 7b can be appropriately set in order to adjust the steam flow rate from the manifold 7 or to enhance the effect of removing moisture in the manifold 7 itself.

Next, a third embodiment of the moisture separation heater of the present invention will be described with reference to FIG.

As shown in FIG. 3, the third embodiment employs an upper blowing structure. That is, the outlet 7d of the manifold 7 is provided so as to open vertically upward. Thereby, the flow path length of the steam flowing out from the outlet 7d to reach the moisture separation element 8 becomes longer than the configuration shown in FIG. 5, and the steam flow velocity at the front surface 8a of the moisture separation element 8 becomes uniform. Become.

The steam that has flowed out from the upwardly opening outlet 7d collides with various structures in the horizontal cylindrical body 1 before reaching the moisture separating element 8, and an effect similar to that of the baffle plate is obtained. The steam flow velocity at the front surface 8a of the moisture separation element 8 becomes uniform.

The outflow direction (upward) of the vapor from the outlet 7d and the position (downward) of the moisture separation element 8 are largely apart. In addition, the outflow direction (upward) of the steam from the outlet 7d is largely different from the direction (horizontal direction) in which the steam enters the moisture separation element 8. Since the steam that has once proceeded upward from the outlet 7 d is inverted downward and heads toward the moisture separation element 8, the steam flow rate at the front surface 8 a of the moisture separation element 8 is
d is sufficiently reduced compared to the flow velocity from
The flow velocity does not exceed the limit flow velocity at the front surface 8a. Since the steam that has flowed upward from the outlet 7d is inverted downward and guided to the moisture separation element 8 along the inner wall surface 1a, particularly, the moisture separation element located on the extension of the flow path along the inner wall surface 1a The flow velocity at the lower portion 8b of the nozzle 8 is not too high.

In this case, the outlet 7d is not limited to a configuration that opens vertically upward. Various structures in the existing horizontal cylindrical body 1 or new structures, and the outlet 7
In consideration of the speed of the steam flow at the front face 8a and the effect of equalizing the steam flow rate at the front face 8a, the steam flowing out of the manifold 7 and colliding with the structure in relation to the steam from the The position of the outlet 7d can be arbitrarily set so that the direction is appropriately set.

Further, by opening the outlet 7d upward, a part of the moisture contained in the steam can be removed in the manifold 7. In the process of passing through the manifold 7, moisture (droplets) contained in the steam collides with the inner wall surface 7c of the manifold 7, and the moisture adheres to the inner wall surface 7c.
The moisture moves to the bottom of the inner wall surface 7c by its own weight. As shown in FIG. 5, when the outlet 7a is provided at the lower position, the outlet 7a is separated in the manifold 7 and the inner wall surface 7a is separated.
The moisture near the bottom of c flows out from the outlet 7a together with other steam. On the other hand, in the third embodiment, the outlet 7d is provided on the upper part of the manifold 7, so that the moisture separated in the manifold 7 and located near the bottom of the inner wall surface 7c is removed together with other steam. It does not flow out from the outlet 7d and can be kept near the bottom of the inner wall surface 7c. Thereby, a part of moisture can be removed in the manifold 7.

Since the steam from which moisture has been removed by the inside of the manifold 7 is supplied to the moisture separating element 8, the load on the moisture separating element 8 is reduced by that amount, and as a result, the moisture is separated. Efficiency is improved.

The moisture removed in the manifold 7 is
It temporarily accumulates at the bottom of the inner wall surface 7c of the manifold 7.
The moisture is discharged from a drain (not shown) provided in the manifold 7. The outlet 7d provided at the upper part and the drain vent provided at the lower part of the manifold 7 do not interfere with each other in their installation positions, and the degree of freedom in setting the installation position of the outlet 7d is high.

In order to enhance the moisture removal effect of the manifold 7 itself, for example, a collision portion (not shown) for colliding with a droplet which is going to flow out from the outlet 7d is provided at an inner opening edge of the outlet 7d. Can be provided.
The function of separating moisture in the manifold 7 is improved by colliding the droplet with the collision section. The function of this collision portion is similar to that of the baffle plate, but taking into account the efficiency of exhausting steam from the manifold 7 and the steam flow rate, etc.
It is set so that turbulence in the inside is not generated more than necessary.

The size, shape and number of the outlets 7d can be appropriately set in order to adjust the steam flow rate from the manifold 7 or enhance the effect of removing moisture in the manifold 7 itself.

In the moisture separation heater of the first to third embodiments, the steam flowing out from the outlet of the manifold 7 hits the inner wall 1a at a shallow angle as shown in FIG. The element 8 is prevented from reaching. That is, the steam flowing out from the outlet of the manifold 7 may collide with the inner wall surface 1a at a deep angle, or may have another structure (including the inner wall surface 7c of the manifold 7).
After reaching the moisture separation element 8 after changing the direction of the outflow from the air outlet, or by causing the air to reach the moisture separation element 8.

Next, a fourth embodiment of the moisture separation heater of the present invention will be described with reference to FIG.

As shown in FIG. 4, the fourth embodiment employs a pipe blowing structure. In the structure of FIG. 5 and FIGS. 1 to 3, the outlets 7 a, 7 b, and 7 d are all formed in the manifold 7 in a slit shape. In the fourth embodiment, instead of this slit, a pipe 7e is made to penetrate from the radial center of the manifold 7, and the opening of the pipe 7e is used as a blowout port 7f.

The steam flowing in the manifold 7 is an annular flow, and the liquid (moisture) D contained in the steam is
Flows (or adheres) closer to the inner wall surface 7c than to the radial center portion of. For this reason, by providing a pipe 7e that penetrates from the radial center portion of the manifold 7 to the outside, only the steam containing no moisture is removed from the manifold 7
Can be taken from The drain D in the manifold 7 is separately taken out by draining not shown.

Since the steam from which moisture has been removed by the inside of the manifold 7 is supplied to the moisture separation element 8, the load on the moisture separation element 8 is reduced accordingly, and as a result, the separation of moisture is performed. Efficiency is improved.

In the first to fourth embodiments, the moisture separation element 8 may be a moisture separation element having a function of separating moisture, and is not limited to the moisture separation element 8. Absent. For example, instead of the moisture separating element 8, a filter, cotton, a multilayer wire mesh, or the like may be used.

The first to fourth embodiments can be appropriately combined. For example, the angle of the pipe 7e is set to 40 to 60 degrees, or the manifold 7
(Combination of the fourth embodiment and the second or third embodiment), and further, a baffle plate (combination of the fourth embodiment and the first embodiment).
In addition, although not described in detail here, a combination of the first embodiment and the second or third embodiment can be performed.

The following effects can be obtained by any of the above embodiments. The steam flow velocity at the front surface 8a of the moisture separation element 8 is made uniform, the portion exceeding the critical flow velocity is reduced, and the moisture separation efficiency is improved. Since a part of the moisture can be removed upstream of the moisture separation element 8, the load on the moisture separation element 8 is reduced, and the moisture separation efficiency is improved.

[0054]

According to the moisture separating heater of the present invention, the efficiency of separating moisture is improved, and the wetness of steam is reduced, thereby preventing erosion and improving the thermal efficiency of the turbine plant.

[Brief description of the drawings]

FIG. 1 is a side view showing a moisture separation heater according to a first embodiment of the present invention.

FIG. 2 is a side view showing a moisture separation heater according to a second embodiment of the present invention.

FIG. 3 is a side view showing a moisture separation heater according to a third embodiment of the present invention.

FIG. 4 is a side view showing a moisture separation heater according to a fourth embodiment of the present invention.

FIG. 5 is a side view showing a conventional moisture separation heater.

[Explanation of symbols]

 Reference Signs List 1 horizontal cylindrical body 1a inner wall surface 7 manifold 7a outlet 7b outlet 7c inner wall surface 7d outlet 7e pipe 7f outlet 8 moisture separation element 8a front surface 8b lower portion 21 baffle plate D moisture

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Sakata Illumination 2-1-1 Shinama, Arai-machi, Takasago City, Hyogo Prefecture Inside the Takasago Works, Mitsubishi Heavy Industries, Ltd. (72) Inventor Koji Hirokawa 2-1-1, Araimachi, Takarai-sago No. 1 Inside the Mitsubishi Heavy Industries, Ltd. Takasago Research Laboratory

Claims (5)

[Claims] 1. A body, a manifold provided inside the body, and to which steam containing moisture is supplied, and a blowout formed in the manifold and allowing the steam to flow out of the manifold. A mouth, a moisture separating element provided inside the body and separating the moisture contained in the steam from the steam flowing out of the outlet, and a flow rate of the steam at a position of the moisture separating element. A moisture separation heater provided with a flow rate control unit for uniforming. 2. A body formed in a cylindrical shape, a manifold provided inside the body, and supplied with steam containing moisture therein; and a steam formed in the manifold and provided outside the manifold. A baffle plate, and a baffle plate that is provided inside the body and separates the moisture contained in the steam from the steam that has flowed out of the bubbling hole. The steam flowing out of the outlet flows along the inner peripheral surface of the body before reaching the moisture separation element, and the baffle plate disturbs the flow of the steam flowing along the inner peripheral surface. A moisture separation heater provided so as to equalize the flow rate of the steam at the position of the moisture separation element. 3. A body, a manifold provided inside the body, and to which steam containing moisture is supplied, and a blowout formed in the manifold to allow the steam to flow out of the manifold. A mouth, a moisture separating element provided inside the body and separating the moisture contained in the steam from the steam flowing out of the outlet, wherein the outlet has flowed out of the outlet. A moisture separation heater provided so that the steam collides with the inside of the body to reduce the flow velocity of the steam, thereby uniformizing the flow velocity of the steam at the position of the moisture separation element. 4. A body, a manifold provided inside the body, to which steam containing moisture is supplied, and a blowout formed in the manifold to allow the steam to flow out of the manifold. And a moisture separating element provided inside the body and separating the moisture contained in the steam from the steam flowing out of the outlet, wherein the outlet is the moisture in the manifold. It is provided on the side opposite to the side where the separation element is provided, and the flow velocity of the steam at the position of the moisture separation element is made uniform by the long flow path length of the steam up to the moisture separation element. Is provided with a moisture separator heater. 5. A body, a manifold provided inside the body, to which steam containing moisture is supplied, and a blowout formed in the manifold to allow the steam to flow out of the manifold. A mouth, a moisture separating element provided inside the body and separating the moisture contained in the steam from the steam flowing out of the outlet, from the vicinity of the center of the cross section of the manifold to the outside of the manifold. And a pipe provided so as to penetrate therethrough, wherein the blow-out port is an opening of the pipe.