JPS602403Y2 - Gas-liquid separation equipment - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a gas-liquid separation device such as a steam-water drum of a circulation boiler.

The first gas-liquid separator used as a conventional air-water drum
This will be explained based on the figure and FIG.

The steam/water mixture is led into a casing 2 by a rising pipe 1, passes through an air intake chamber 3, enters a turbo separator 4 (centrifugal steam/water separator), and undergoes primary steam/water separation.

The water centrifuged by the turbo separator 4 falls below the casing 2 , mixes with the water supplied into the casing 2 from the inner water supply pipe 5 , is subcooled, and is led out of the casing 2 through the downcomer pipe 6 .

In addition, the steam containing some mist that has been centrifuged by the turbo separator 4 passes through the gas chamber 7 arranged along the entire length of the casing 2, where secondary steam and water separation is performed, and the mist contained in the steam is completely removed. The steam is then removed and guided outside the casing 2 through the saturated steam communication pipe 8.

In the gas chamber 7, a gas-liquid separation material 9 made of 2.5 to 6 mesh wire meshes is arranged at the inlet of the gas chamber 7, and when steam containing mist passes through this material at a very slow speed, the mist is separated into gas and liquid. It adheres to the separation material 9 and falls downward, and only the steam is taken out.

In order to perform complete steam/water separation as described above, the steam containing mist must pass through the gas chamber 7 at a very slow speed, and therefore the gas chamber 7 disposed along the entire length of the casing 2 In order to effectively utilize the saturated steam communication pipes 8, it is necessary to install a large number of saturated steam communication pipes 8 at equal pitches over the entire length of the casing 2.

In order to make the gas chamber 7 installed over the entire length of the casing 2 work effectively and obtain high steam/water separation efficiency, a large number of saturated steam communication pipes 8 are required, so the conventional device has the following drawbacks. .

(1) Since it is necessary to attach a large number of four saturated steam communication pipes to the casing 2, many man-hours are required for manufacturing, assembling, and inspecting the casing 2.

(2) Many man-hours are required to manufacture, assemble, and inspect a large number of saturated steam communication pipes 8.

Therefore, the present invention eliminates the above-mentioned drawbacks of the conventional device,
The purpose of this device was to provide a device with a simple structure and low cost. A partition plate with a large number of holes and a barrier plate for extracting steam was provided in the space, and a partition plate was installed between the partition plate and the steam drum. By using the resulting space as a longitudinal passage for the steam drum (extracted through numerous holes in the partition plate), it is possible to greatly reduce the number of saturated steam communication pipes without reducing the steam/water separation efficiency. The present invention provides a gas-liquid separation device.

Next, the present invention will be specifically explained based on an embodiment shown in FIGS. 3 to 5.

A partition plate 10 is attached to the gas chamber 7 in the casing 2 over the entire length of the casing 2.

A large number of holes 11 for extracting steam are provided at equal pitches over the entire length of the partition plate 10, and a bar plate 12 is attached to the front outside of each hole 11.

The casing 2 is provided with two saturated steam communication pipes 8 that are open in the gas chamber 7.

The rest of the structure is the same as the conventional device shown in FIGS. 1 and 2, and detailed explanation will be omitted here.

- The mixed fluid subjected to the next steam/water separation passes through the gas-liquid separation material 9 made of 2.5 to 6 meshes of wire gauze, and the mist is removed.

The steam from which the mist has been removed enters the gas chamber 7 on the downstream side from a steam extraction hole 11 formed in the partition plate 10.

The steam that has entered the gas chamber 7 on the downstream side flows in the longitudinal direction of the casing 2 and is led out of the casing 2 into the saturated steam communication pipe 8.

In order to make the gas chamber 7 work effectively, a large number of holes 11 for steam extraction are arranged at equal pitches over the entire length, and a bar plate 12 is provided on the outside of the front of each hole 11 to prevent the steam flow from shifting. It is designed so that the entire surface of the gas chamber 7 can work effectively.

By employing the structure as described above, the number of saturated steam communication pipes 8 can be greatly reduced to 1 to 2 without impairing the steam/water separation performance, resulting in the following advantages.

(1) Since only a small number of four saturated steam communication pipes are required to be attached to the casing 2, the man-hours for manufacturing, assembling, and inspecting the casing can be reduced.

(2) Man-hours for manufacturing, assembling, and inspecting the saturated steam communication pipe 8 can be reduced.

Furthermore, when this device is used as a steam/water drum in a boiler, (3) the installation space for the saturated steam communication pipe 8 in the ceiling of the boiler can be reduced.

(4) Since only a small number of saturated steam communication pipes 8 are required, the arrangement of hanging rods on the ceiling of the boiler is simplified.

Although the present invention has been described above based on one embodiment, it goes without saying that the present invention is not limited to this embodiment.

[Brief explanation of drawings]

FIG. 1 is a side sectional view of a conventional gas-liquid separation device, FIG. 2 is a view taken along the line C-C in FIG. 3, FIG. 3 is a side sectional view of one embodiment of the present invention, and FIG. C-C arrow view in Figure 3, Figure 5 is the 3rd
It is a CC arrow view in the figure. 1...Rising pipe, 2...Casing, 3
... Accommodation room, 4 ... Turbo separator, 5 ... Water supply inner pipe, 6 ... Descending pipe, 7
...Gas chamber, 8...Saturated steam communication pipe,
9... Gas-liquid separation material, 10... Partition plate,
11...hole, 12...jama board.

Claims (1)

[Scope of utility model registration request] A gas chamber is formed by surrounding the inner wall of one part of the casing over the entire length of the casing, and a gas-liquid separation material is placed at the inlet of the gas chamber over the entire length of the casing, and a gas-liquid separation material is arranged on the inner wall of the first part for the gas outlet. In a gas-liquid separation device in which an outlet pipe is connected, a partition plate is arranged in the gas chamber along the entire length of the casing to divide it into an upstream chamber and a downstream chamber, and the partition plate is provided with a partition plate for gas passage. A gas-liquid separation device characterized in that a plurality of holes are provided, and a thick plate is placed facing the holes.