CN218864151U

CN218864151U - Temperature reduction control device for steam pipeline

Info

Publication number: CN218864151U
Application number: CN202320138974.0U
Authority: CN
Inventors: 黄述生
Original assignee: Xi'an Hengsai Measurement And Control System Engineering Co ltd
Current assignee: Xi'an Hengsai Measurement And Control System Engineering Co ltd
Priority date: 2023-02-07
Filing date: 2023-02-07
Publication date: 2023-04-14
Anticipated expiration: 2033-02-07

Abstract

The utility model belongs to the technical field of steam temperature-reducing control system technique and specifically relates to a temperature-reducing control device for steam conduit, including temperature-reducing water supply pipe and steam mixing pipeline, the front end of temperature-reducing water supply pipe communicates respectively has first pipeline and second pipeline, it has stop valve, choke valve, exhaust valve, check valve and filter to integrate respectively in proper order on first pipeline and the second pipeline, the front end of first pipeline and second pipeline all communicates there is integral type temperature-reducing water governing valve, integral type temperature-reducing water governing valve is fixed in on the steam mixing pipeline, and the bottom nozzle is embedded in the inside of steam mixing pipeline, the utility model discloses to solve traditional temperature-reducing control device for steam conduit and generally be the cooperation of singly organizing delivery pipe and nozzle that adopts, if take place to damage or when overhauing and maintaining, then need the shut down operation to maintain, the maintenance, operational reliability is difficult to obtain guaranteeing, hardly satisfies the problem of market to the user demand that the operational reliability required to increase gradually day by day.

Description

Temperature reduction control device for steam pipeline

Technical Field

The utility model relates to a steam temperature reduction control system technical field specifically is a steam pipeline is with controlling means that reduces temperature.

Background

The desuperheater is a device for adjusting the temperature of superheated reheated steam by using water as a cooling medium, and is used for controlling and keeping the temperature of the superheated steam or the temperature of the reheated steam to be a specified value and preventing the pipe walls of the superheater and the reheater from being heated; various valve bodies are needed to form a temperature reduction control system loop in actual use; it is widely used for steam cooling in the industrial fields of thermoelectricity, petroleum, chemical industry, light industry, metallurgy, national defense, machinery, textile and the like.

With the development of the power industry, cogeneration and national defense industry, the demand of the power industry is increasing, and the requirements on the aspects of operation reliability, service performance, vibration reduction, noise reduction and the like are also increasing; the traditional temperature reduction control device for the steam pipeline usually adopts a single group of water supply pipes to be matched with nozzles, if the traditional temperature reduction control device is damaged or repaired, the traditional temperature reduction control device needs to stop running for maintenance and repair, the running reliability is difficult to guarantee, and the use requirement that the market gradually increases on the running reliability is difficult to meet.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a temperature reduction control device for steam conduit to solve traditional temperature reduction control device for steam conduit and adopt the cooperation of singly organizing delivery pipe and nozzle usually, if take place to damage or when overhauing and maintaining, then need the bring to rest to maintain, operational reliability is difficult to obtain guaranteeing, hardly satisfies the market problem to the user demand that operational reliability requires to increase gradually.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a temperature reduction control device for steam conduit, includes that temperature reduction water supplies pipe and steam mixing pipeline, the front end of temperature reduction water supplies pipe communicates respectively has first pipeline and second pipeline, it has stop valve, choke valve, exhaust valve, check valve and filter to integrate respectively in proper order on first pipeline and the second pipeline, the front end of first pipeline and second pipeline all communicates there is the integral type temperature reduction water governing valve, the integral type temperature reduction water governing valve is fixed in on the steam mixing pipeline, and the bottom nozzle is embedded in the inside of steam mixing pipeline.

Preferably, the front end of the steam mixing pipeline is a steam inlet end, and the tail end of the steam mixing pipeline is a steam outlet end.

Preferably, stop valve, choke valve, waste discharge valve, check valve, filter and integral type temperature-reducing water regulating valve are flange joint, and the junction has all been done sealed the processing.

Preferably, the tail side of the steam mixing pipeline is fixedly connected with a temperature measuring element, and the distance between the temperature measuring element and the integrated desuperheating water regulating valve is not less than 12m.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses in, through carrying out two branch road reposition of redundant personnel designs with the desuperheating water pipeline, and all integrated on every branch road has the stop valve, the choke valve, the valve of wasting discharge, the check valve, filter and integral type desuperheating water governing valve, can realize the double link water supply cooling, reach the control system design that one is used for one and is equipped with (one is as normal work control to link promptly, one is as reserve work control to link), and then can damage or need when maintaining at normal work control link, it is closed with the stop valve on this link, switch on the stop valve on the reserve work link again, and then convert reserve link into normal link, then maintain the link that damages before, the maintenance can, treat the maintenance, will continue to put into use as reserve link after the maintenance is accomplished, thereby reach the maintenance of not shutting down, the maintenance, can guarantee that it has higher operating stability, in order to satisfy high operating stability's market user demand.

Drawings

Fig. 1 is a schematic structural view of a temperature reduction control device for a steam pipeline according to the present invention.

In the figure: 1. a supply pipe for the reduced-temperature water; 2. a first pipeline; 3. a second pipeline; 4. a stop valve; 5. a throttle valve; 6. a waste valve; 7. a check valve; 8. a filter; 9. an integrated desuperheating water regulating valve; 10. a steam mixing pipeline.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

Referring to fig. 1, the present invention provides a technical solution:

a temperature reduction control device for a steam pipeline comprises a temperature reduction water supply pipe 1 and a steam mixing pipeline 10, wherein the front end of the temperature reduction water supply pipe 1 is respectively communicated with a first pipeline 2 and a second pipeline 3, so that the traditional temperature reduction water single supply pipeline is changed into double branch supply, and the subsequent pipeline of a one-use one-equipment control system is convenient to add; the stop valve 4, the throttle valve 5, the waste discharge valve 6, the check valve 7 and the filter 8 are sequentially and respectively integrated on the first pipeline 2 and the second pipeline 3, and the front ends of the first pipeline 2 and the second pipeline 3 are both communicated with the integrated desuperheating water regulating valve 9, so that each branch has the functions of intercepting, throttling, waste discharge, non-return and filtering, two desuperheating water supply links with the same function are formed, one-use one-standby control is achieved, and the operation reliability and stability of the desuperheating water supply links are improved; on integral type desuperheating water governing valve 9 was fixed in steam mixing pipeline 10, and the bottom nozzle is embedded in steam mixing pipeline 10's inside, utilizes integral type desuperheating water governing valve 9 to carry out desuperheating water flow control to evenly spray by the bottom nozzle, reach and cool off steam in the steam mixing pipeline 10, in order to reach the steam of regulation service temperature, prevent that over heater, re-heater pipe wall from being heated.

In this embodiment, the front end of the steam mixing pipe 10 is a steam inlet end, and the tail end of the steam mixing pipe 10 is a steam outlet end, so that the steam side is fed in and out.

In this embodiment, stop valve 4, choke valve 5, waste discharge valve 6, check valve 7, filter 8 and integral type desuperheating water governing valve 9 are flange joint, and sealed processing has all been done to the junction, easily dismouting, make things convenient for later maintenance, maintenance dismantlement to change.

In the embodiment, the tail side of the steam mixing pipeline 10 is fixedly connected with the temperature measuring element, so that the temperature of the cooled steam is measured, the flow of the desuperheating water is conveniently adjusted in real time, and the desuperheating control effect is improved; the distance between the temperature measuring element and the integrated desuperheating water regulating valve 9 is not less than 12m, the steam in the area to be measured is ensured to be completely cooled and mixed, and the detection and regulation precision is improved.

The utility model discloses theory of operation: during the use, when normal work control link (being first pipeline 2) damages or need to maintain, close stop valve 4 on this link, break on standby work link (being second pipeline 3) stop valve 4 again, and then convert standby link to normal link, then damage the device on first pipeline 2 and maintain, maintain can, wait to maintain, can continue to put into use first pipeline 2 as standby link after the maintenance, the maintenance is accomplished to reach and not stop the operation and maintain, maintain.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A temperature reduction control device for a steam pipeline comprises a temperature reduction water supply pipe (1) and a steam mixing pipeline (10), and is characterized in that: the front end of desuperheating water supply pipe (1) communicates respectively has first pipeline (2) and second pipeline (3), it has stop valve (4), choke valve (5), exhaust valve (6), check valve (7) and filter (8) to integrate respectively in proper order on first pipeline (2) and second pipeline (3), the front end of first pipeline (2) and second pipeline (3) all communicates has integral type desuperheating water governing valve (9), integral type desuperheating water governing valve (9) are fixed in on steam mixing pipeline (10), and the bottom nozzle is embedded in the inside of steam mixing pipeline (10).

2. A temperature-reducing control apparatus for a steam line according to claim 1, wherein: the front end of the steam mixing pipeline (10) is a steam inlet end, and the tail end of the steam mixing pipeline (10) is a steam outlet end.

3. A temperature-reducing control apparatus for a steam line according to claim 1, characterized in that: stop valve (4), choke valve (5), waste discharge valve (6), check valve (7), filter (8) and integral type desuperheating water governing valve (9) are flange joint, and the junction has all been done sealed the processing.

4. A temperature-reducing control apparatus for a steam line according to claim 1, characterized in that: the tail side of the steam mixing pipeline (10) is fixedly connected with a temperature measuring element, and the distance between the temperature measuring element and the integrated desuperheating water regulating valve (9) is not less than 12m.