CN109210375B - Steam temperature and pressure reducing device - Google Patents

Steam temperature and pressure reducing device Download PDF

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Publication number
CN109210375B
CN109210375B CN201811202548.9A CN201811202548A CN109210375B CN 109210375 B CN109210375 B CN 109210375B CN 201811202548 A CN201811202548 A CN 201811202548A CN 109210375 B CN109210375 B CN 109210375B
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China
Prior art keywords
steam
temperature
valve
pipeline
safety valve
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CN201811202548.9A
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Chinese (zh)
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CN109210375A (en
Inventor
胡钰铃
崔秀芝
徐俊华
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ZHUHAI XINYUAN THERMAL POWER Co.,Ltd.
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Maanshan Numen Intellectual Property Management Services Co Ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17DPIPE-LINE SYSTEMS; PIPE-LINES
    • F17D1/00Pipe-line systems
    • F17D1/02Pipe-line systems for gases or vapours
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17DPIPE-LINE SYSTEMS; PIPE-LINES
    • F17D3/00Arrangements for supervising or controlling working operations
    • F17D3/01Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17DPIPE-LINE SYSTEMS; PIPE-LINES
    • F17D3/00Arrangements for supervising or controlling working operations
    • F17D3/18Arrangements for supervising or controlling working operations for measuring the quantity of conveyed product

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Nozzles (AREA)

Abstract

The invention discloses a steam temperature and pressure reducing device which comprises an electric temperature and pressure reducing valve, wherein a straight stroke electric actuator is arranged on the electric temperature and pressure reducing valve and is connected with a DCS (distributed control system) control cabinet, the DCS control cabinet is connected with a computer, a steam inlet is formed in one side of the electric temperature and pressure reducing valve, a pressure sensor and a temperature sensor are arranged on the steam inlet, the other side of the electric temperature and pressure reducing valve is connected with a steam mixing pipeline through temperature reduction, a filter is arranged on the temperature reducer, a protective pipe is arranged on the inner side of the steam mixing pipeline of an annular pore plate, a nozzle is arranged at the water inlet on the steam mixing pipeline, the filter is arranged at the nozzle, the nozzle is connected with a check valve through a pipeline, a flow limiting pore plate is. The invention has the advantages of simple structure, low manufacturing cost, convenient installation, uniform atomized particles, high precision, no blockage, stable and reliable work and capability of greatly reducing investment, operation and maintenance cost.

Description

Steam temperature and pressure reducing device
Technical Field
The invention particularly relates to a steam temperature and pressure reducing device.
Background
The steam temperature reducing device is a device commonly used in energy-saving engineering, and comprises a temperature reducing water atomizing device and a combined vaporizing unit, wherein an atomizing nozzle is used for carrying out pressure atomization on the temperature reducing water and dispersing the temperature reducing water in high-temperature steam flow, the combined vaporizing unit is used for further forcibly rotating, shearing and crushing the atomized temperature reducing water, and the temperature reducing water is vaporized by absorbing heat on the surface of an internal part of the vaporizing unit, so that the vaporizing process is obviously enhanced, and the temperature reduction of high-temperature steam is achieved. The traditional steam temperature-reducing device has small flow adjustable range and poor quality, and can block a spray head and a pipeline under certain conditions.
Disclosure of Invention
The invention aims to provide a steam temperature and pressure reducing device to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the invention discloses a steam temperature and pressure reducing device, which comprises an electric temperature and pressure reducing valve, wherein the electric temperature and pressure reducing valve is provided with a straight stroke electric actuator, the straight stroke electric actuator is connected with a DCS control cabinet, the DCS control cabinet is connected with a computer, one side of the electric temperature and pressure reducing valve is provided with a steam inlet, the steam inlet is provided with a pressure sensor and a temperature sensor, the other side of the electric temperature and pressure reducing valve is connected with a steam mixing pipeline through temperature reduction, a temperature reducer is provided with a filter, the steam mixing pipeline is internally provided with an annular pore plate, the inner side of the steam mixing pipeline is provided with a protection pipe, a water inlet on the steam mixing pipeline is provided with a nozzle, the nozzle is provided with the filter, the nozzle is connected with a check valve through a pipeline, the pipeline is internally provided with a flow limiting pore plate, the throttle formula flowmeter connects the stop valve, and steam mixing pipeline's one end is connected with gas pipeline, is equipped with safety protection system, manometer and bimetal thermometer on the gas pipeline, and safety protection system includes the spring relief valve, and the main relief valve is connected to the spring relief valve, and the impulse relief valve is connected to the main relief valve, and the lever relief valve is connected to the impulse relief valve, is equipped with temperature sensor two and pressure transmitter below the gas pipeline. The invention is further improved in that: the bottoms of the spring safety valve, the main safety valve, the impulse safety valve and the lever safety valve are all connected with a steam mixing pipeline, and the main safety valve and the impulse safety valve are at least provided with one set.
The invention is further improved in that: the pressure sensor, the temperature sensor, the desuperheater, the temperature sensor II and the pressure transmitter are respectively connected with the computer.
The invention is further improved in that: the nozzle is an ultrasonic atomization nozzle.
The invention is further improved in that: the stop valve is connected with the temperature reduction water tank.
The invention is further improved in that: a water tank is connected between the throttling flowmeter and the stop valve.
The invention is further improved in that: the two sides of the bottom of the temperature and pressure reducing device are provided with supports, and the supports are provided with metal rubber vibration isolating pads.
The invention is further improved in that: and the straight-stroke electric actuator II are connected with a DCS control cabinet.
Compared with the prior art, the invention has the beneficial effects that:
1. the nozzle adopted by the invention has no transmission part or blockage, can be randomly disassembled, is convenient to maintain, has uniform atomized particles, high precision, extremely low air pressure, no blockage, stability and reliability, and can clean the cavity of the spray head while vibrating.
2. The annular pore plate adopted by the invention can measure the flow of the fluid, can still accurately measure when the length is not long enough, is suitable for high-temperature and high-pressure fluid (such as superheated steam), and has the advantages of low cost, reliable work and stable performance.
3. The flow-limiting orifice plate adopted by the invention has the advantages of simple structure, easy processing, low manufacturing cost, convenient installation and the like, and the flow-limiting orifice plate is used for limiting the flow or reducing the pressure instead of a regulating valve, so that the investment, the operation and maintenance cost can be greatly reduced, and the invention plays an important role in the safe operation of the device.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Detailed Description
The technical solutions 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 a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the invention provides a steam temperature and pressure reducing device, which comprises an electric temperature and pressure reducing valve 1, wherein a straight stroke electric actuator 2 is arranged on the electric temperature and pressure reducing valve 1, the straight stroke electric actuator 2 is connected with a DCS control cabinet 3, the DCS control cabinet 3 is connected with a computer, one side of the electric temperature and pressure reducing valve 1 is provided with a steam inlet 4, the steam inlet 4 is provided with a pressure sensor 5 and a temperature sensor 6, the other side of the electric temperature and pressure reducing valve 1 is connected with a steam mixing pipeline 8 through a temperature reducer 7, the temperature reducer 7 is provided with a filter 9, an annular pore plate 10 is arranged in the steam mixing pipeline 8, the inner side of the steam mixing pipeline 8 is provided with a protection pipe 15, a nozzle 11 is arranged at a water inlet on the steam mixing pipeline 8, the nozzle 11 is provided with a filter 12, the nozzle 11 is connected with a check valve 14 through a pipeline 13, a flow, the second straight-stroke electric actuator 16 is connected with a throttle valve 17, the throttle valve 17 is connected with a throttling flow meter 18, the throttling flow meter 18 is connected with a stop valve 19, one end of the steam mixing pipeline 8 is connected with a gas pipeline 32, a safety protection system, a pressure gauge 20 and a bimetallic thermometer 21 are arranged on the gas pipeline 32, the safety protection system comprises a spring safety valve 26, the spring safety valve 26 is connected with a main safety valve 29, the main safety valve 29 is connected with an impulse safety valve 27, the impulse safety valve 27 is connected with a lever safety valve 31, and a second temperature sensor 24 and a pressure transmitter 25 are arranged below the gas pipeline 32.
In the invention, the bottoms of the spring safety valve 26, the main safety valve 29, the impulse safety valve 27 and the lever safety valve 31 are all connected with the steam mixing pipeline 8, and the main safety valve 26 and the impulse safety valve 27 are at least provided with one set.
In the invention, a pressure sensor 5, a temperature sensor 6, a desuperheater 7, a second temperature sensor 24 and a pressure transmitter 25 are respectively connected with a computer, a nozzle 11 is an ultrasonic atomization nozzle, a stop valve 19 is connected with a desuperheating water tank, the water tank is connected between a throttling flowmeter 18 and the stop valve 19, two sides of the bottom of the desuperheating and depressurizing device are provided with supports 26, metal rubber vibration isolating pads 27 are arranged on the supports 26, and a straight-stroke electric actuator 2 and a straight-stroke electric actuator second 16 are connected with a DCS control cabinet 3.
The working principle is as follows: high temperature steam is introduced into the pipeline from the inlet end of the desuperheater, and water is sprayed through the nozzle at the throat part of the pipeline to form mist water drops which are fully mixed with high-speed steam flow. The sprayed water absorbs the heat of the superheated steam and turns into steam, so that the steam temperature is reduced.
In conclusion, the invention has the advantages of simple structure, low manufacturing cost, convenient installation, uniform atomized particles, high precision, no blockage, extremely low air pressure and stable and reliable work, and can greatly reduce the investment, operation and maintenance cost.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that 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 (3)

1. The utility model provides a steam temperature and pressure reduction device, includes electronic temperature and pressure reduction valve (1), its characterized in that: be equipped with straight stroke electric actuator (2) on electronic temperature and pressure reducing valve (1), DCS switch board (3) is connected in straight stroke electric actuator (2), the computer is connected in DCS switch board (3), electronic temperature and pressure reducing valve (1) one side is equipped with steam inlet (4), be equipped with pressure sensor (5) and temperature sensor (6) on steam inlet (4), the opposite side of electronic temperature and pressure reducing valve (1) is connected with steam mixing pipeline (8) through desuperheater (7), be equipped with filter (9) on desuperheater (7), be equipped with annular orifice plate (10) in steam mixing pipeline (8), steam mixing pipeline (8) inboard is equipped with protection tube (15), water inlet department on steam mixing pipeline (8) is equipped with nozzle (11), nozzle (11) department is equipped with filter (12), the nozzle (11) is connected with a check valve (14) through a pipeline (13), a flow limiting orifice plate (22) is arranged in the pipeline (13), the check valve (14) is connected with a second straight-stroke electric actuator (16) through a pipeline, the second straight-stroke electric actuator (16) is connected with a throttle valve (17), the throttle valve (17) is connected with a throttle flowmeter (18), the throttle flowmeter (18) is connected with a stop valve (19), one end of the steam mixing pipeline (8) is connected with a gas pipeline (32), a safety protection system, a pressure gauge (20) and a bimetallic thermometer (21) are arranged on the gas pipeline (32), the safety protection system comprises a spring safety valve, the spring safety valve is connected with a main safety valve (29), the main safety valve (29) is connected with an impulse safety valve, and the impulse safety valve is connected with a lever safety valve (, a second temperature sensor (24) and a pressure transmitter (25) are arranged below the gas pipeline (32);
the stop valve (19) is connected with the temperature reduction water tank; a water tank is connected between the throttling flow meter (18) and the stop valve (19);
the bottoms of the spring safety valve, the main safety valve (29), the impulse safety valve and the lever safety valve (31) are all connected with the steam mixing pipeline (8), and the main safety valve and the impulse safety valve are at least provided with one set;
supports are arranged on two sides of the bottom of the temperature and pressure reducing device, and metal rubber vibration isolating pads are arranged on the supports;
the straight-stroke electric actuator (2) and the straight-stroke electric actuator II (16) are connected with the DCS control cabinet (3);
high-temperature steam is introduced into the pipeline from the inlet end of the desuperheater, water is sprayed in through the nozzle at the throat part of the pipeline to form mist water drops which are fully mixed with high-speed steam flow, and the sprayed water absorbs the heat of the superheated steam to be changed into steam, so that the steam temperature is reduced.
2. A steam desuperheating and pressure reducing device as defined in claim 1, wherein: and the pressure sensor (5), the temperature sensor (6), the desuperheater (7), the second temperature sensor (24) and the pressure transmitter (25) are respectively connected with a computer.
3. A steam desuperheating and pressure reducing device as defined in claim 1, wherein: the nozzle (11) is an ultrasonic atomization nozzle.
CN201811202548.9A 2018-10-16 2018-10-16 Steam temperature and pressure reducing device Active CN109210375B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Publication number Priority date Publication date Assignee Title
CN111370692A (en) * 2020-03-10 2020-07-03 协鑫高新材料科技有限公司 Preparation method of lithium iron phosphate as positive electrode material of lithium ion battery and precursor thereof
CN112664835A (en) * 2021-01-11 2021-04-16 杭州华电能源工程有限公司 Split type steam temperature and pressure reducing device and working method thereof
CN113446517B (en) * 2021-06-25 2022-07-05 江苏盐阜电站阀门辅机制造有限公司 Saturated steam type temperature and pressure reducing device

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CN2091354U (en) * 1991-02-22 1991-12-25 刘集中 Cooling and pressure-relief device for generating electricity
CN201162946Y (en) * 2008-02-22 2008-12-10 杭州华惠阀门有限公司 Attemperation and pressure reducing device
CN202008126U (en) * 2010-12-28 2011-10-12 杭州华惠阀门有限公司 Quickly opened and closed high-temperature high-pressure temperature and pressure reduction device
CN102434781A (en) * 2011-12-02 2012-05-02 杭州华惠阀门有限公司 Temperature-reducing and pressure-reducing system
CN202902418U (en) * 2012-09-19 2013-04-24 北京创时能源有限公司 Heat pump driving steam temperature control device
CN204996350U (en) * 2015-06-17 2016-01-27 杭州钱江热能设备有限公司 Subtract mixing duct of temperature decompression
RU162826U1 (en) * 2015-07-07 2016-06-27 Общество с Ограниченной Ответственностью "Научно-Производственное Предприятие "Авиагаз-Союз+" MAIN GAS PIPELINE
DE102016218497A1 (en) * 2016-09-27 2018-03-29 Robert Bosch Gmbh Reductant supply system for exhaust aftertreatment
CN207945488U (en) * 2018-02-02 2018-10-09 广州美阀流体控制设备有限公司 A kind of temperature reducing and pressure reducing system

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Effective date of registration: 20200916

Address after: 243000 Anhui city of Ma'anshan province high tech Zone at 1669 North Road Huo sparkle Building No. 2

Applicant after: MAANSHAN NIUMENG INTELLECTUAL PROPERTY MANAGEMENT SERVICES Co.,Ltd.

Address before: 243000 Anhui city of Ma'anshan Province Economic and Technological Development Zone West Road No. 259

Applicant before: MAANSHAN MUJI INFORMATION TECHNOLOGY Co.,Ltd.

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Effective date of registration: 20201022

Address after: 519000 Xinyuan building, 2073 gaolangang Avenue, Gaolan Port Economic Zone, Zhuhai City, Guangdong Province

Patentee after: ZHUHAI XINYUAN THERMAL POWER Co.,Ltd.

Address before: 243000 Anhui city of Ma'anshan province high tech Zone at 1669 North Road Huo sparkle Building No. 2

Patentee before: MAANSHAN NIUMENG INTELLECTUAL PROPERTY MANAGEMENT SERVICES Co.,Ltd.