CN213132295U

CN213132295U - Steam-water separation device with horizontally-opposite inlet and outlet

Info

Publication number: CN213132295U
Application number: CN202021433884.7U
Authority: CN
Inventors: 宋徐辉; 唐珂; 杜云川
Original assignee: Spirax Sarco Engineering China Co ltd
Current assignee: Spirax Sarco Engineering China Co ltd
Priority date: 2020-07-20
Filing date: 2020-07-20
Publication date: 2021-05-07
Anticipated expiration: 2030-07-20

Abstract

A steam-water separation device with horizontally-opposite inlet and outlet, comprising: set up outlet conduit, inlet pipe, fender flow board, separator, toper flaring and the ware of vortex of barrel in, wherein: export pipeline's export section and entry pipeline's entry section level opposition, export pipeline's entry section upwards buckles inside the barrel, and entry pipeline's export section is inside downwards buckling inside the barrel, keeps off the flow board and sets up in the entry end top of export pipeline and links to each other with the barrel, and the separator sets up in the entry pipeline outside, and the toper flaring links to each other with entry pipeline's exit end, and the vortex breaker sets up in the barrel bottom just to the below of toper flaring. The device has compact structure, is convenient for application in various occasions, can be suitable for steam pipelines with different pipe diameters by matching the flanges with special inlet and outlet opposed structures, and provides convenience for disassembly, maintenance and repair of the separable upper and lower cylinders.

Description

Steam-water separation device with horizontally-opposite inlet and outlet

Technical Field

The utility model relates to a technique in the gas-liquid separation field specifically is a steam-water separation device who imports and exports horizontal opposition.

Background

In industrial production, steam is widely used, for example, in the food industry, crude oil refining, pharmaceutical industry, tobacco industry, and the like. The steam quality is of great importance in many applications, and three standards, namely dryness, superheat and non-condensable gas content, are provided for judging the steam quality in the general industry. The dryness of the steam is concerned by most industries, and too low dryness causes many problems, for example, in a thermal power station, because the speed of the steam passing through a steam turbine is very high, small liquid drops carried in the steam have very high kinetic energy, great harm is generated to blades of a rotor, and the safety of a generator set is influenced; in steam delivery systems, relying solely on a trap mounted on the pipe does not raise the dryness of the steam to the desired range, particularly where small water droplets entrained in the steam are not drained through the pipe. Therefore, a steam-water separation device is required to further remove moisture entrained in the steam.

There are many prior art baffle-type or centrifugal steam-water separators, the former of which operates on the principle of inertial resistance and gravity settling, and the latter of which operates on the principle of separating water droplets from steam by centrifugal force by causing the steam to rotate rapidly within the separator. However, both of these separators have their limitations and provide high separation efficiency only under certain operating conditions. Tests prove that the baffle type steam-water separator has lower separation efficiency when the steam flow rate at the inlet is overhigh. The centrifugal separator also has low separation efficiency when the inlet speed is high, and has low centrifugal separation capacity when the inlet steam flow speed is low, so that the separation efficiency is low. The separator cannot realize higher steam-water separation efficiency under a larger range of steam flow rate because of single separation principle, and cannot meet the industrial application with higher steam dryness requirement.

SUMMERY OF THE UTILITY MODEL

The utility model discloses it is not enough to the above-mentioned that prior art exists, provides a steam-water separation device of importing and exporting horizontal opposition, through making steam the motion of turning back many times in the device to separate the moisture of smuggleing secretly in with steam through the silk screen, add the baffle in order to block the direct entering of liquid drop on the upper portion of gas outlet again, be less than 90% under the circumstances of entry steam quality, can guarantee under great steam flow rate scope that export steam quality reaches more than 95%.

The invention is realized by the following technical scheme:

the utility model discloses a: set up outlet conduit, inlet pipe, fender flow board, separator, toper flaring and the ware of vortex of barrel in, wherein: export pipeline's export section and entry pipeline's entry section level opposition, export pipeline's entry section upwards buckles inside the barrel, and entry pipeline's export section is inside downwards buckling inside the barrel, keeps off the flow board and sets up in the entry end top of export pipeline and links to each other with the barrel, and the separator sets up in the entry pipeline outside, and the toper flaring links to each other with entry pipeline's exit end, and the vortex breaker sets up in the barrel bottom just to the below of toper flaring.

The barrel is formed by combining an upper barrel and a lower barrel which are connected by a clamping hoop.

The top end of the upper cylinder body is closed; the bottom end of the lower cylinder body is provided with a reducing drain hole.

Technical effects

Compared with the prior art, the utility model discloses a steam-water separation mode of a lot of inertial separation, silk screen separation or centrifugal separation, the big or small liquid drop of smuggleing secretly in can effectively separating out steam, guaranteed that low reaches export steam quality has higher promotion, through experimental contrast, the promotion effect of quality will be superior to baffle formula catch water and centrifugal catch water under the same size. The utility model discloses compact structure, the multiple occasion of being convenient for is used, and its special import and export opposition structure cooperation flange can be applicable to different pipe diameter steam line, and its separable upper and lower barrel provides convenience for the dismantlement, the maintenance and the repair of internals.

Drawings

FIG. 1 is a schematic view of a steam-water separator with a wire mesh sleeve;

FIG. 2 is a side and top view of a separator of a wire mesh sleeve;

FIG. 3 is a schematic structural view of a steam-water separation device with a sleeve of a swirl vane type;

FIG. 4 is a side view of the separator of a sleeve of swirl vanes;

in the figure: the device comprises an outlet flange 1, an outlet pipeline 2, an upper barrel 3, a flow baffle 4, an inlet pipeline 5, an inlet flange 6, a separator 7, a conical flaring 8, a lower barrel 9, a hoop 10, a vortex breaker 11, a reducing drain 12, a drain flange 13, a barrel structure 14, a wire mesh material 15, an inner barrel 16, an outer barrel 17 and guide vanes 18.

Detailed Description

As shown in fig. 1 and 3, the present embodiment includes: export flange 1, outlet pipe 2, last barrel 3, keep off and flow board 4, inlet pipe 5, entry flange 6, separator 7, toper flaring 8, barrel 9, clamp 10 and vortex breaker 11 down, wherein: outlet flange 1 is connected with outlet pipe 2's exit end, inlet flange 6 is connected with inlet pipe 5's entry end, clamp 10 is connected last barrel 3 and lower barrel 9, outlet pipe 2 gets into inside the barrel and upwards buckles 90 degrees and the coincidence of the central axis by last barrel 3, inlet pipe 5 gets into and downwards buckles 90 degrees and the coincidence of central axis by last barrel inside, outlet pipe 2 and the outer partial level opposition of inlet pipe 5's barrel, it sets up in outlet pipe 2's entry end top and links to each other with last barrel 3 to keep off and flow board 4, separator 7 sets up in inlet pipe 5 outside, toper flaring 8 links to each other with inlet pipe 5's exit end, broken vortex ware 11 sets up in the below of toper flaring 8.

The bottom of the lower cylinder 9 is provided with a reducing drain 12.

The lower end of the reducing drain port 12 is connected with a drain port flange 13.

The separator 7 is a hollow wire mesh type sleeve as shown in fig. 2 or a cyclone vane type sleeve as shown in fig. 4.

As shown in fig. 2, the separator, which is a wire mesh type sleeve, is a cylindrical structure 14 with an inner diameter matching the outer diameter of the inlet pipe 5 and an outer diameter matching the inner diameter of the upper cylinder 3, and a wire mesh material 15 is provided in the cylindrical structure made of a metal frame.

As shown in fig. 4, the separator, which is a sleeve of a swirl vane type, comprises two concentrically arranged cylindrical structures which are sleeved inside and outside, wherein: the inner diameter of the inner cylinder 16 is matched with the outer diameter of the inlet pipeline 5, and the outer wall surface of the outer cylinder 17 is provided with a plurality of guide vanes 18.

This embodiment works by: the steam-water mixture enters from the inlet pipeline 5, enters the lower cylinder 9 downwards along the inlet pipeline 5 and then is discharged into the device, larger droplets are directly discharged from the reducing drain 12 under the action of gravity, small droplets carried by steam return and flow upwards after reaching the bottom of the device from the lower cylinder 9, enter the upper cylinder 3 after being further separated by the separator 7, and return again in the upper space of the device and then enter the outlet pipeline 2 to be discharged. The baffle plate 4 of the upper cylinder 3 can prevent the liquid drops on the top from flowing into the outlet pipe 2. After twice turning back movements and separation of the wire mesh or the swirl vanes, the dryness of the steam discharged from the outlet pipeline 2 is ensured to be over 95 percent under a larger steam flow velocity range when the inlet steam dryness is lower than 90 percent.

The steam-water separator of the device has the advantages of small volume and compact structure, and does not need frequent maintenance. Through the optimized design, the steam-water separation of different forms is realized for the inlet steam for many times. The inlet pipeline is bent downwards in the cylinder and is close to a drain hole at the lower part of the cylinder, so that large liquid drops in steam can be effectively separated; during the upward movement of the steam in the cylinder, the blocking of the compacted wire mesh or the centrifugal action of the replaceable swirl vanes realizes the secondary separation of liquid drops in the steam. Meanwhile, the suspended larger liquid drops can be separated out by the certain height of the cylinder body under the action of gravity; after passing through the wire mesh or the swirl vanes, the flow direction of the steam is changed above the cylinder body again, and the dryness of the steam at the outlet is further improved by utilizing inertial separation.

The foregoing embodiments may be modified in various ways by those skilled in the art without departing from the spirit and scope of the present invention, which is not limited by the above embodiments but is to be accorded the full scope defined by the appended claims, and all such modifications and variations are within the scope of the invention.

Claims

1. A steam-water separation device with horizontally-opposite inlet and outlet, which is characterized by comprising: set up outlet conduit, inlet pipe, fender flow board, separator, toper flaring and the ware of vortex of barrel in, wherein: the outlet section of the outlet pipeline is horizontally opposite to the inlet section of the inlet pipeline, the inlet section of the outlet pipeline is bent upwards in the cylinder, the outlet section of the inlet pipeline is bent downwards in the cylinder, the flow baffle is arranged above the inlet end of the outlet pipeline and connected with the cylinder, the separator is arranged outside the inlet pipeline, the conical flaring is connected with the outlet end of the inlet pipeline, and the vortex breaker is arranged at the bottom of the cylinder and just faces the lower part of the conical flaring; the barrel is formed by combining an upper barrel and a lower barrel which are connected by a clamping hoop.

2. The steam-water separator with horizontally-opposite inlets and outlets as claimed in claim 1, wherein the outlet pipe enters the interior of the cylinder from the upper cylinder and is bent upwards by 90 degrees to coincide with the central axis, and the inlet pipe enters the interior of the upper cylinder and is bent downwards by 90 degrees to coincide with the central axis.

3. The steam-water separator with horizontally opposite inlets and outlets as claimed in claim 1, wherein the bottom of the lower cylinder is provided with a drain hole with different diameter.

4. The steam-water separator as claimed in claim 3, wherein the drain port flange is connected to the lower end of the drain port of different diameter.

5. The steam-water separator as claimed in claim 1, wherein the separator is a hollow wire mesh type sleeve or a swirl vane type sleeve.

6. A water separator as claimed in claim 5, wherein the separator of the screen type sleeve is of a cylindrical structure with an inner diameter matching the outer diameter of the inlet pipe and an outer diameter matching the inner diameter of the upper cylinder, and the screen material is provided in the cylindrical structure made of metal frame.

7. The steam-water separator with horizontally-opposite inlet and outlet as claimed in claim 5, wherein the separator of the swirl vane type sleeve comprises two concentrically-arranged cylindrical structures which are sleeved inside and outside, wherein: the inner diameter of the inner cylinder is matched with the outer diameter of the inlet pipeline, and the outer wall surface of the outer cylinder is provided with a plurality of guide vanes.