JP7446850B2 - Condenser support structure, condenser installation method, and water leakage test method - Google Patents

Description

The present disclosure relates to a condenser support structure, a condenser installation method, and a water leak test method.

A condenser is used in a power generation plant that generates electricity by rotationally driving a generator using a steam turbine, and condenses steam at the outlet of the steam turbine to form condensation. Such a condenser is a large structure. For this reason, extensive work is required for the installation work of transporting and installing the device at a predetermined location. Patent Document 1 discloses an invention in which a pedestal is installed in a pit and a condenser is installed on the pedestal. The pedestal is composed of a plurality of rod-like members arranged vertically and horizontally in a plan view, and a plurality of support columns that support each rod-like member from below. This mount is used to hold the condenser and the condensate during a water leak test, which involves filling the inside of the condenser with water to confirm its integrity after the installation of the condenser is completed or during periodic inspections. It has a highly rigid structure that can support the load of water inside the vessel.

Patent No. 6276094

The pedestal disclosed in Patent Document 1 has a complicated structure because it is composed of a large number of rod-shaped members and a large number of support sections, and there is a problem that it takes a lot of work time to install the pedestal and the condenser.

The present disclosure has been made in view of these circumstances, and aims to provide a condenser support structure, a condenser installation method, and a water leak test method that allow the condenser to be easily installed. purpose.

A condenser support structure according to an aspect of the present disclosure includes a plurality of foundations that support the load of a condenser from below, and a plurality of foundations that are arranged between an upper surface of the foundations and a lower surface of the condenser, and a water filling beam member provided horizontally between a base plate on which a water container is placed and the opposing foundation, and supporting the load of the condenser from below during a water filling leak test of the condenser; The upper surface of the water-filling beam member is lower in height than the upper surface of the base plate, and has a predetermined gap between it and the lower surface of the condenser.

A condenser installation method according to one aspect of the present disclosure is a condenser installation method in which a condenser is installed on a plurality of foundations, the method comprising a water-filling beam member installation step of horizontally installing a water-filling beam member that supports the condenser from below between the opposing foundations; and a horizontal movement step of moving in the horizontal direction.

A water-filled leakage test method according to one aspect of the present disclosure is a water-filled leakage test method in which a leakage test is performed by filling a condenser supported on a plurality of foundations with water, the method comprising: A liner member installation step of installing a liner member between the upper surface of a water-filled beam member that is installed in the horizontal direction and supports the load of the condenser from below during a water-filled leakage test, and the lower surface of the condenser. have.

Since the water filling beam member can be used when installing the condenser, the condenser can be installed easily.

FIG. 1 is a plan view showing a condenser support structure according to an embodiment of the present disclosure. 2 is a view taken along the line AA in FIG. 1. FIG. It is a side view showing the positional relationship between the foundation and the beam member for water filling. It is a flow chart showing a method of installing a condenser. FIG. 2 is a side view showing a state in which the condenser is transported using traveling rails. It is a perspective view which showed the process of installing a traveling rail on the beam member for water filling. FIG. 3 is a side view showing the condenser in a jacked up state. It is a side view showing a condenser support structure. FIG. 2 is a side view showing a water leakage test method. FIG. 3 is a side view showing the area around the lower surface of the condenser during a water leakage test.

An embodiment according to the present disclosure will be described below with reference to the drawings.
In FIG. 1, a support structure for a condenser 1 is shown. The condenser 1 is installed on a plurality of foundations 3.
Note that, in this embodiment, the term "above" or "upper" refers to the vertically upper side, and similarly, "the lower" or "lower" refers to the vertically lower side. The vertical direction is not exact and includes errors.

The condenser 1 in this embodiment is used as one piece of equipment constituting a power generation plant together with a steam turbine (not shown), a generator (not shown), and the like. A power generation plant consists of a boiler that generates steam, a steam turbine that is rotationally driven by the steam generated by the boiler, a generator that is rotationally driven by the rotational driving force of the steam turbine and generates electricity, and a steam turbine that generates steam discharged from the steam turbine. and a condenser 1 for cooling and condensing water to obtain condensate.

As shown in Fig. 1, the outer shape of the condenser 1 is a large box-like shape that is approximately rectangular in plan view as shown by the broken line, and the distance from the manufacturing site to the point where the power generation plant is installed is In order to make it large enough to be transported and carried to a predetermined location within a power generation plant, it is composed of, for example, eight divided bodies 1a. The condenser 1 shown in FIG. 1 is divided into four parts in the longitudinal direction and two parts in the transverse direction. Note that the number of divisions of the condenser 1 is determined by its size. Therefore, the number of divisions of the condenser 1 may be one, or two or more.

The foundation 3 has a prismatic shape and is made of concrete. As shown in FIG. 1, the foundations 3 are provided, for example, three in the longitudinal direction and three in the transverse direction, for a total of nine foundations. On each foundation 3, a corner of the divided body 1a of the condenser 1 is placed. However, most of one side in the longitudinal direction of the divided body 1a is placed on the central foundation 3. The arrangement and number of foundations 3 are determined by the number of divided bodies 1a, etc. The number of divided bodies 1a is determined based on the arrangement of piping etc. installed in the lower part of the condenser 1, size restrictions at the time of transportation and import, etc.

As shown in FIG. 2, a slide plate (base plate) 5 is provided on the upper surface of each foundation 3. Preferably, a portion of the lower surface of the slide plate 5 is embedded in the upper surface of the foundation 3 and fixed by placing mortar or the like. The condenser 1 can be slid horizontally on the slide plate 5 if thermal expansion occurs during operation of the power plant after installation.

As shown in FIG. 1, a water-filled beam member 7 is provided between the opposing foundations 3, and both ends thereof are supported by the opposing foundations 3, respectively. The water filling beam member 7 is a rod-shaped member made of steel, and is provided to extend in the horizontal direction. As shown in FIG. 2, the water-filled beam member 7 is made of, for example, H-beam steel, and has a cross-sectional height of 700 mm to 900 mm.

A beam notch 3a for supporting the end of the water-filled beam member 7 is formed in the upper part of each foundation 3. The beam notch 3a has a rectangular shape cut downward from the upper side of the side where the foundations 3 face each other. The beam notch 3a is a generally rectangular parallelepiped-shaped space with the front facing the opposing foundation 3 and the top open. A step is formed in the upper part of the foundation 3 by the beam notch 3a. The depth of the beam notch 3a (the vertical distance between the top surface of the foundation 3 and the bottom of the beam notch 3a) is, for example, from 700 mm to 900 mm, and the width (the distance in the direction perpendicular to the longitudinal direction of the water-filled beam member 7) is, for example, 700 mm to 900 mm. The length) is, for example, about 400 mm, and the depth (the length of the water-filling beam member 7 supported in the longitudinal direction) is, for example, about 400 mm.

In FIG. 1, the six foundations 3 located at both ends in the transverse direction and provided along the longitudinal direction have a beam notch 3a formed in a substantially central region in the width (transverse) direction. In FIG. 1, the three foundations 3 located at the center in the transverse direction and provided along the longitudinal direction are each provided with two beam cutouts 3a in approximately the center region in the width (short direction) direction. (See Figure 2). This is because the two water-filling beam members 7 are positioned below each divided body 1a.

By locking the ends of the water-filling beam members 7 in the beam notches 3a formed in each foundation 3, the water-filling beam members 7 are arranged between the opposing foundations 3 so as to serve as support beams at both ends. That is, the intermediate position between both ends of the water-filled beam member 7 is not structured to be supported by a support or the like. The end portion of the water-filled beam member 7 is fixed to the foundation 3 by a locking member such as an anchor bolt.

As shown in FIG. 3, the upper surface 7a of the water-filled beam member 7 is provided at a lower position than the upper surface 5a of the slide plate 5. Therefore, a gap S1 of a predetermined size is provided between the lower surface 1b of the condenser 1 and the upper surface 7a of the water-filled beam member 7.

The dimension of the gap S1 is, for example, 5 mm or more and 20 mm or less, preferably about 10 mm or more and 15 mm or less. As will be described later, when installing the condenser 1 or performing a water leakage test, the load on the condenser 1 (water leakage test) is (including the load of water in the condenser 1) is supported.

The upper surface 7a of the water-filled beam member 7 is approximately at the same height as the upper surface 3c of the foundation 3. However, the upper surface 7a of the water-filled beam member 7 does not need to be at the same height as the upper surface 3c of the foundation 3, as long as it is located lower than the upper surface 5a of the slide plate 5.

As shown in FIG. 1, a jack notch 3b is formed at the upper corner of each foundation 3, in which a jack-up device 12 (see FIG. 7), which will be described later, is installed. The jack cutout portions 3b have a rectangular shape cut downward from the upper surface of the foundation 3 at both corners of the sides where the foundations 3 face each other. The jack notch 3b is a generally rectangular parallelepiped-shaped space with the front facing the opposing foundation 3, the upper side, and one side open. A step is formed in the upper part of the foundation 3 by the jack notch 3b. The depth (length in the vertical direction) of the jack notch 3b is, for example, from 700 mm to 900 mm, the width (length in the short direction) is, for example, about 400 mm, and the depth (length in the longitudinal direction) is, for example, It is said to be approximately 400mm.

<How to install condenser 1>
Next, a method for installing the condenser 1 to realize the support structure for the condenser 1 described above will be explained using FIG. 4 and the like.

Before moving (carrying in) and installing the condenser 1 to a predetermined position, as shown in FIG. 3a is formed (ST1), and a jack notch 3b is formed at the upper corner of each foundation 3 (ST2).

Then, the water-filled beam members 7 are installed across the opposing foundations 3 using the beam notches 3a, and fixed with locking members such as anchor bolts (ST3: water-filled beam member installation step).

Next, the following process is performed as an installation process of the condenser 1.
A slide plate 5 (see FIG. 1) is installed in advance on each foundation 3 (base plate installation step).

Then, as shown in FIGS. 5 and 6, as a step ST4, the installation liner member 10 is installed on the upper surface of the water filling beam member 7 (installation liner member installation step), and the installation liner member 10 is installed on the upper surface of the installation liner member 10. The traveling rail 11 is temporarily installed and temporarily fixed (travel rail installation process).

As shown in FIG. 5, in the installation liner member 10, the lower surfaces of the plurality of running rails 11 are placed on the upper surface 5a of the slide plate 5, so that the upper surface 7a of the water filling beam member 7 and the lower surface of the running rail 11 are It is installed to fill the gap between the two. As a result, the upper surface 10a of the installation liner member 10 and the upper surface 5a of the slide plate 5 are approximately at the same height. Note that arrow A1 in FIGS. 5 and 6 indicates the running direction of the truck 17 when transporting the divided body 1a of the condenser 1.

As shown in FIG. 6, the traveling rail 11 is installed so as to pass above the water-filled beam member 7. Specifically, the traveling rails 11 are installed in series along the longitudinal direction of the water-filled beam member 7. The traveling rail 11 may be divided into a plurality of parts in the longitudinal direction to facilitate handling during loading/unloading and installation. In this case, the ends of a plurality of running rails 11 installed in series along the longitudinal direction are temporarily fixed by welding using, for example, a joint plate 15 (see FIG. 5) at a connection position where the ends are brought together.

The running rails 11 function as treads and guides for a trolley 17 that loads and transports the divided bodies 1a of the condenser 1. The running rail 11 is a so-called channel material (channel steel) having a substantially C-shaped cross section, and has a width (tread) of 200 mm to 300 mm and a height (guide surface) of 150 mm to 200 mm, for example. .

As shown in FIG. 5, on the side surfaces of the water filling beam member 7, the installation liner member 10, and the running rail 11, a plurality of position regulating plates 19 for regulating the position of the running rail 11 are arranged at predetermined intervals in the longitudinal direction. It is fixedly installed. The position regulating plate 19 prevents the traveling rail 11 from moving in a direction perpendicular to the longitudinal direction when transporting the divided body 1a of the condenser 1.

Next, as shown in FIG. 5, the divided body 1a of the condenser 1 is moved in the horizontal direction using the cart 17 running on the running rail 11, and transported to a predetermined installation position (ST5: horizontal movement process).

Then, as the step ST6, as shown in FIG. The body 1a is jacked up (jacking step). The divided body 1a is lifted to a height of about 100 mm from the upper surface 5a of the slide plate 5 by the jack-up device 12.

While the divided body 1a of the condenser 1 is lifted and supported by the jack-up device 12 in the step ST6, the traveling rail 11 is pulled out and removed along with the cart 17 in the longitudinal direction in the step ST7 (travel rail removal step). , the installation liner member 10 is removed (installation liner member removal step).

Next, the jack-up device 12 is lowered to place the divided body 1a of the condenser 1 on the slide plate 5 of the foundation 3, and the support of the divided body 1a of the condenser 1 is released (jack-down process), After that, the jack-up device 12 is removed (ST8). Thereby, as shown in FIG. 8, a support structure in which the divided bodies 1a of the condenser 1 are installed on the slide plate 5 on the foundation 3 is realized. At this time, a gap S1 is formed between the upper surface 7a of the water filling beam member 7 and the lower surface 1b of the divided body 1a of the condenser 1.

Repeat the steps from ST4 to ST8 above to install all the divided bodies 1a of the condenser 1 at predetermined positions and connect each divided body 1a to complete the installation of the condenser 1 (ST9 ).

<Hydrological leakage test method>
Next, the water leak test method will be explained using FIG. 9.
In order to confirm the integrity of the condenser 1 (for example, whether there is any leakage from heat transfer tubes etc. installed inside the condenser 1), the system is installed after the condenser 1 is installed, and before the power plant is operated. , Water leakage tests are conducted during periodic inspections after a power plant has been in operation for a certain period of time. When performing a water-filled leakage test, as shown in FIG. Insert the water filling liner member 20 as shown in FIG. More specifically, as shown in FIG. 10, when water is poured into the condenser 1 and the load on the condenser 1 increases, the lower surface 1b of the condenser 1 is prevented from bending downward. In order to suppress and support the load of the condenser 1 containing internal water, a water-filling liner member 20 is installed at a load supporting position. The load supporting position is preferably installed below the structural member 1c that supports the load of the condenser 1. Therefore, unlike the installation liner member 10, it does not necessarily have to be installed on substantially the entire upper surface 7a of the water-filling beam member 7. However, the installation liner member 10 may be used for installation.

The effects of this embodiment described above are as follows.
The condenser 1 is supported on a plurality of foundations 3 via slide plates 5. A water-filled beam member 7 extending horizontally is provided between the opposing foundations 3 .
The upper surface 7a of the water-filled beam member 7 is lower in height than the upper surface 5a of the slide plate 5, and has a predetermined gap S1 between it and the lower surface 1b of the condenser 1. Thereby, the water-filling beam member 7 does not need to always support the load of the condenser 1.
When transporting the divided body 1a of the condenser 1, as shown in steps ST4 to ST9 (FIGS. 4 to 8), the liner member 10 for installation is attached to the upper surface 7a using the water filling beam member 7. After the running rail 11 was installed and the divided body 1a of the condenser 1 was transported to a predetermined position by the trolley 17 and used for installation, the installation liner member 10 and the running rail 11 were removed. Even after the installation of the condenser 1 is completed, the water filling beam member 7 can be permanently installed without removing it.
Since a predetermined gap S1 is provided between the lower surface 1b of the condenser 1 and the upper surface 7a of the water-filling beam member 7, the condenser If the load of the condenser 1 is supported, there is no need to provide a temporary pedestal made of a large number of rod-shaped members, etc., and the installation work of the condenser 1 can be simplified.
In addition, the water-filling beam member 7 can also be used to fill the gap S1 by using a water-filling liner member 20, etc., even when the condenser 1 is filled with water and the load increases during a water-filled leak test of the condenser 1. By partially filling it, the load of the condenser 1 can be supported on the upper surface 7a of the water-filling beam member 7.

When carrying the condenser 1 to a predetermined position on the foundation 3 and installing it, the water filling beam member 7 can be used. At this time, in order for the water filling beam member 7 to receive the load of the condenser 1 when moving on the running rail 11 via the trolley 17 and the running rail 11, it is installed in the gap S1 between the condenser 1 and the condenser 1. The liner member 10 is inserted. By setting the gap S1 of 5 mm or more and 20 mm or less as a dimension into which the installation liner member 10 can be inserted, the installation work of the condenser 1 can be performed smoothly.
Furthermore, the installation liner member 10 may be used as a water-filled liner member 20 during a water-filled leak test.

The water-filled beam member 7 is a beam member whose both ends are supported by the opposing foundations 3. In other words, the midway position of the water filling beam member 7 is not supported from below. Thereby, it is possible to provide a simple structure that does not require a support structure at an intermediate position of the water-filled beam member 7.

A beam notch 3a is provided in the foundation 3, and the end of the water filling beam member 7 is fitted and locked into the beam notch 3a. Thereby, the end portion of the water filling beam member 7 can be positioned with a simple structure. Further, there is no need to employ a structure in which a support member such as a bracket is extended from the foundation 3.

When installing the condenser 1 on the foundation 3, it is necessary to temporarily jack up the condenser 1 in order to remove the running rail 11 and the installation liner member 10 used during transportation. We decided to provide the foundation 3 with a jack notch 3b in which the jack-up device 12 used for this jack-up can be installed. Thereby, there is no need to temporarily provide scaffolding, support columns, etc. on which the jack-up device 12 is installed, and the installation work of the condenser 1 can be performed smoothly. Note that it is preferable that the jack-up device 12 be removed after the installation work.

When moving the condenser 1 in the horizontal direction, the water filling beam member 7 provided between the foundations 3 receives the load of the condenser 1. Thereby, there is no need to provide a temporary mounting frame composed of a large number of rod-shaped members and a large number of support sections. Further, the water filling beam member 7 used for the water filling leakage test of the condenser 1 can be effectively used when installing the condenser 1.
In addition, in the case of permanent installation without removing the water filling beam member 7 after installing the condenser 1, it is not necessary to remove the water filling beam member 7 after installing the condenser 1, so it can be removed at the time of installation. Work can be simplified.

By installing running rails 11 on the water-filling beam member 7 and the foundation 3, movement of the trolley 17 in a direction perpendicular to the longitudinal direction is suppressed, and the running of the trolley 17 carrying the condenser 1 is made smooth. Can be done.

A slide plate 5 is provided between the running rail 11 and the foundation 3, and an installation liner member 10 is installed between the running rail 11 and the water filling beam member 7, so that transportation on the running rail 11 is possible. Since the load of the condenser 1 is supported by the entire area of the foundation 3 and the water-filling beam member 7, the load of the condenser 1 is reliably transmitted. Thereby, stable horizontal movement of the condenser 1 is realized.

After the condenser 1 is jacked up by a jack-up device 12, the running rail 11 and the installation liner member 10 are removed, and the condenser 1 is lowered onto the slide plate 5. As a result, if thermal expansion of the condenser 1 occurs during plant operation, the condenser 1 can be installed on the foundation 3 while being able to slide horizontally on the slide plate 5. .

When performing a water leakage test, by installing the water filling liner member 20 between the upper surface 7a of the water filling beam member 7 provided between the opposing foundations 3 and the lower surface 1b of the condenser 1, Even when the load applied to the lower surface 1b of the condenser 1 increases due to internal water during a hydrostatic leakage test, deformation can be suppressed by supporting the lower surface 1b from below.

The condenser support structure, condenser installation method, and water leak test method described in each of the embodiments described above can be understood, for example, as follows.

A condenser support structure according to an aspect of the present disclosure includes a plurality of foundations (3) that support the load of a condenser (1) from below, and an upper surface of the foundations (3) and a surface of the condenser (1). a base plate (5) on which the condenser (1) is placed, and a base plate (5) on which the condenser (1) is placed, and the opposing foundation (3); A water-filling beam member (7) that supports the load of the condenser (1) from below during a water-filling leakage test of the container (1), and an upper surface (7a) of the water-filling beam member (7) are connected to the base plate (5). ) is lower in height than the upper surface (5a) of the condenser (1), and has a predetermined gap (S1) between it and the lower surface (1b) of the condenser (1).

The condenser is supported on a plurality of foundations via base plates. A water-filled beam member extending horizontally is provided between the opposing foundations. During a water leakage test of a condenser, if the condenser is filled with water and the load received by the bottom of the condenser increases, the water filling beam member supports the bottom of the condenser from below and prevents the condenser from leaking. Suppresses deformation of the bottom of the water container.
The upper surface of the water-filling beam member is lower in height than the upper surface of the base plate, and has a predetermined gap between it and the lower surface of the condenser. Thereby, the water-filling beam member does not need to always support the load of the condenser. Moreover, when carrying the condenser to a predetermined position on the foundation and installing it, a running rail can be installed using the water-filling beam member, and the condenser placed on the trolley can be transported. At this time, an installation liner member is inserted into a predetermined gap between the condenser and the lower surface of the condenser so that the water filling beam member receives the load of the condenser via the truck and the running rail. By setting a gap size that allows the installation liner member to be inserted, the condenser installation work can be performed smoothly. After the condenser is installed, it can be installed as is without removing the water filling beam members.
A predetermined gap is provided between the bottom surface of the condenser and the water-filling beam member, so when installing the condenser, it is recommended to support the load of the condenser by filling the gap with a liner member, etc. For example, it is not necessary to provide a large number of temporary frames during installation, and the installation work of the condenser can be simplified.

Furthermore, in the condenser support structure according to one aspect of the present disclosure, the gap (S1) is 5 mm or more and 20 mm or less.

When carrying the condenser to a predetermined position on the foundation and installing it, a water filling beam member can be used. At this time, in order for the water filling beam member to receive the load of the condenser, a liner member is inserted into the gap between the water filling beam member and the condenser. By setting a gap of 5 mm or more and 20 mm or less as a dimension into which the liner member can be inserted, the condenser installation work can be performed smoothly.
Moreover, the liner member can also be used during a water leakage test.

Furthermore, in the condenser support structure according to one aspect of the present disclosure, the water filling beam member (7) is a both-end support beam whose both ends are supported by each of the foundations (3).

The water-filled beam member is a support beam at both ends. In other words, the midway position of the water-filled beam member is not supported from below. This allows for a simple structure. As the water-filled beam member, for example, H-beam steel can be used.

Furthermore, in the condenser support structure according to one aspect of the present disclosure, a beam notch (3a) to which an end of the water filling beam member (7) is locked is formed in the foundation (3). There is.

A beam notch was provided in the foundation, and the end of the water-filled beam member was fitted and locked into the beam notch. Thereby, the end portion of the water-filled beam member can be positioned with a simple structure without requiring a support structure at an intermediate position of the water-filled beam member. Further, there is no need to employ a structure in which a bracket extends from the foundation and locks the water-filling beam member. The beam notch has, for example, a shape cut downward from the upper surface of the foundation.

Furthermore, in the condenser support structure according to one aspect of the present disclosure, the foundation (3) has a jack notch ( 3b) is formed.

When installing the condenser on the foundation, it is necessary to temporarily jack up the condenser. It was decided to provide a jack notch in the foundation in which a jack-up device used for this jack-up can be installed. Thereby, there is no need to provide temporary members such as scaffolding or support columns for installing the jack-up device, and the installation work of the condenser can be carried out smoothly without requiring much time. Note that it is preferable to remove the jack-up device after the installation work. The jack notch has, for example, a shape cut downward from the upper surface of the foundation.

A condenser installation method according to one aspect of the present disclosure is a condenser installation method of installing a condenser (1) on a plurality of foundations (3), the method comprising: a step of installing a water-filling beam member (7) that supports the load of the condenser (1) from below during a leakage test in a horizontal direction between the opposing foundations (3); and the condenser (1) A horizontal movement step of moving the condenser (1) in the horizontal direction while the water filling beam member (7) supports the load.

When moving the condenser in the horizontal direction, the water filling beam member installed between the foundations was designed to receive the load of the condenser. Thereby, there is no need to provide a temporary installation frame composed of a large number of rod-shaped members and a large number of support columns. In addition, the water filling beam member used for the water leakage test of the condenser can be effectively used when installing the condenser.
In addition, if the condenser is installed without removing the water-filling beam after the condenser is installed, the installation work can be simplified since there is no need to remove the water-filling beam after the condenser is installed. can.

Furthermore, in the condenser installation method according to one aspect of the present disclosure, the step of installing the water-filling beam member includes inserting an end of the water-filling beam member (7) into a beam notch (3a) formed in the foundation (3). It has a step of locking.

A beam notch was provided in the foundation, and the end of the water-filled beam member was fitted and locked into the beam notch. Thereby, the end portion of the water-filled beam member can be positioned with a simple structure that does not require a temporary member at an intermediate position. Furthermore, there is no need to employ a structure in which a bracket extends from the foundation to support the water-filling beam member. The beam notch has, for example, a shape cut downward from the upper surface of the foundation.

Furthermore, in the condenser installation method according to one aspect of the present disclosure, the horizontal movement step includes moving a trolley for transporting the condenser (1) onto the water filling beam member (7) and the foundation (3). (17) has a running rail installation step of installing a running rail (11) on which the rail (17) runs.

By installing the running rail on the water-filling beam member and the foundation, it is possible to suppress the cart carrying the condenser from moving in a direction orthogonal to the horizontal direction, and to make the cart run smoothly.

Furthermore, in the condenser installation method according to one aspect of the present disclosure, a base plate installation step of installing a base plate (5) between the traveling rail (11) and the foundation; and a liner member installation step of installing a liner member (10) between the tension beam member (7).

By installing a base plate between the running rail and the foundation and installing a liner member between the running rail and the water filling beam, the load of the condenser carried on the running rail is transferred to the foundation and the water filling beam. The information is reliably transmitted to the member. This allows stable horizontal movement of the condenser.

The upper surface (7a) of the water filling beam member (7) is lower in height than the upper surface (5a) of the base plate (5), and has a predetermined distance between it and the lower surface (1b) of the condenser (1). It is preferable to have a gap (S1).

Furthermore, in the condenser installation method according to one aspect of the present disclosure, after the condenser (1) is located above the foundation (3) located at both ends of the water filling beam member (7), the condenser a jack-up process for lifting the water container (1) upward; a running rail removal process for removing the running rail (11); a liner member removal process for removing the liner member (10); and the lifted condenser. (1) is lowered onto the base plate (5).

After jacking up the condenser, remove the running rail and liner members and lower the condenser onto the base plate. This allows the condenser to be installed on the foundation.
By removing the liner member, a gap is formed between the condenser and the water filling beam member. Thereby, the water filling beam member does not need to always support the load of the condenser.

Furthermore, in the condenser installation method according to one aspect of the present disclosure, the jack up device (12) used in the jack up process and the jack down process is provided with a jack notch (3b) formed in the foundation (3). It has a jack installation process.

It was decided to provide a jack notch in the foundation where a jacking device could be installed. Thereby, there is no need to provide temporary members such as scaffolding or support columns for installing the jack device, and the condenser installation work can be performed smoothly. Note that it is preferable to remove the jack-up device after the installation work. The jack notch has, for example, a shape cut downward from the upper surface of the foundation.

A water-filled leak test method according to an aspect of the present disclosure is a water-filled leak test method in which a leak test is performed by filling a condenser (1) supported on a plurality of foundations (3) with water, The upper surface of the water filling beam member (7), which is provided horizontally across the foundation (3) and supports the load of the condenser (1) from below during the water leakage test, and the condenser (1) ) includes a liner member installation step of installing a liner member (20) between the lower surface of the liner member (20) and the lower surface of the liner member (20).

By installing a liner member between the water-filling beam member installed between opposing foundations and the lower surface of the condenser, it is possible to prevent the lower surface of the condenser from increasing the load due to internal water during a water-filling leak test. It can be supported to suppress deformation and maintain its shape.
During plant operation without liner members installed, the load of the condenser is not applied to the water-filling beam members. Thereby, a water-filled beam member with a simple structure can be employed.

1 Condenser 1a Divided body 1b Lower surface 3 Foundation 3a Beam cutout 3b Jack cutout 3c Upper surface 5 Slide plate (base plate)
5a Top surface 7 Water filling beam member 7a Top surface 10 Installation liner member (liner member)
10a Upper surface 11 Running rail 12 Jack-up device 15 Joint plate 17 Dolly 19 Position regulation plate 20 Water filling liner member (liner member)
S1 gap

Claims (13)

Multiple foundations that support the load of the condenser from below,
a base plate arranged between the upper surface of the foundation and the lower surface of the condenser and on which the condenser is placed;
a water filling beam member that is provided horizontally between the opposing foundations and supports the load of the condenser from below during a water leakage test of the condenser;
In the condenser support structure, the upper surface of the water-filling beam member is lower in height than the upper surface of the base plate, and has a predetermined gap between it and the lower surface of the condenser. The condenser support structure according to claim 1, wherein the gap is 5 mm or more and 20 mm or less. The condenser support structure according to claim 1 or 2, wherein the water filling beam member is a both-end support beam whose both ends are supported by each of the foundations. The condenser support structure according to any one of claims 1 to 3, wherein the foundation is formed with a beam notch portion into which an end portion of the water-filling beam member is locked. 5. The condenser support structure according to claim 1, wherein the foundation is formed with a jack notch in which a jack-up device for lifting the condenser can be installed during installation. A condenser installation method for installing a condenser on multiple foundations,
a step of installing a water-filling beam member that supports the load of the condenser from below during a water-filling leak test of the condenser, horizontally extending between the opposing foundations;
a horizontal movement step of moving the condenser in the horizontal direction while the water filling beam member supports the load of the condenser;
Condenser installation method with 7. The condenser installation method according to claim 6, wherein the water-filling beam member installation step includes a step of locking an end of the water-filling beam member to a beam notch formed in the foundation. 8. The horizontal movement step includes a traveling rail installation step of installing a traveling rail on which a trolley for transporting the condenser runs on the water-filled beam member and the foundation. How to install a condenser. a base plate installation step of installing a base plate between the traveling rail and the foundation;
a liner member installation step of installing a liner member between the traveling rail and the water-filled beam member;
The condenser installation method according to claim 8, comprising: The condenser installation method according to claim 9, wherein the upper surface of the water-filling beam member is lower in height than the upper surface of the base plate, and has a predetermined gap between it and the lower surface of the condenser. . After the condenser is located above the foundation located at both ends of the water filling beam member, a jacking up step of lifting the condenser upward;
a traveling rail removal step of removing the traveling rail;
a liner member removal step of removing the liner member;
a jacking down step of lowering the lifted condenser onto the base plate;
The condenser installation method according to claim 9 or 10, comprising: The condenser installation method according to claim 11, further comprising a jack installation step of installing a jack up device used in the jack up step and the jack down step in a jack notch formed in the foundation. A water-filled leakage test method in which a leakage test is performed by filling a condenser supported on multiple foundations with water, the method comprising:
A liner member is installed between the upper surface of the water filling beam member, which is provided horizontally between the opposing foundations and supports the load of the condenser from below during the water leakage test, and the lower surface of the condenser. A water leak test method that includes a liner member installation process.

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