CN207945488U - A kind of temperature reducing and pressure reducing system - Google Patents
A kind of temperature reducing and pressure reducing system Download PDFInfo
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- CN207945488U CN207945488U CN201820184747.0U CN201820184747U CN207945488U CN 207945488 U CN207945488 U CN 207945488U CN 201820184747 U CN201820184747 U CN 201820184747U CN 207945488 U CN207945488 U CN 207945488U
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- valve
- feed
- pressure reducing
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- feed pump
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- 238000005259 measurement Methods 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- 238000001914 filtration Methods 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims 1
- 230000006837 decompression Effects 0.000 abstract description 2
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 241000208125 Nicotiana Species 0.000 description 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000003739 neck Anatomy 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- Control Of Fluid Pressure (AREA)
Abstract
The utility model discloses a kind of temperature reducing and pressure reducing systems, including main steam header road, decompressor, Desuperheating device and master control set；The inner tube on the main steam header road includes that one section of Wen Qiulishi is managed；The Desuperheating device includes：Flute type nozzle, feed-regulating valve, the first feed pump, the second feed pump, supply line；The decompressor is made of sleeve pressure reducing valve and pressure reducing orifice；The master control set includes measurement device and PID controller；The measurement device includes thermocouple and pressure sensor, is set to entrance and the exit on main steam header road, and signal connects the PID controller.Temperature reducing and pressure reducing system provided by the utility model may be implemented efficiently, steadily to realize steam attemperation decompression.
Description
Technical field
The utility model is related to the field of fluid processing equipment more particularly to a kind of reducing-and-cooling plants.
Background technology
Modern power engineering and heat energy technology require high tcmpcrauire-higb pressure boiler to generate the high superheated steam of the degree of superheat.But it is right
For the requirement of certain apparatus and process, these steam are often overdrying or overheat.Such as：When heat exchanger is used for process operations
When, can heat transfer efficiency be reduced due to low heat transfer coefficient using superheated steam.In addition, the dry saturated steam when high pressure is decompressed to
When low pressure, certain degree of superheat will produce at downstream outlets.Thus, be required in many cases to the steam of high pressure superheater into
Row desuperheat and decompression operation are close to the temperature and pressure of saturated vapor.
Utility model content
The purpose of this utility model is to provide a kind of reducing-and-cooling plants, efficiently, steadily realize that steam attemperation subtracts
Pressure.
To achieve the above object, the technical solution of the utility model is as follows：
A kind of temperature reducing and pressure reducing system, including main steam header road, decompressor, Desuperheating device and master control set, the steaming
The inner tube of vapour main line includes that one section of Wen Qiulishi is managed；
The Desuperheating device includes：Flute type nozzle, feed-regulating valve, the first feed pump, the second feed pump, supply line；
For the flute type nozzle through main steam header road and in the Wen Qiulishi pipes, the other end of flute type nozzle passes through supply line
Fluidly connecting feed-regulating valve, the other end of the feed-regulating valve is separately connected the first, second driving branch, and first, second
Connection desuperheat water source after driving branch converges, first, second feed pump are respectively arranged on the first, second driving branch road；
The decompressor is made of sleeve pressure reducing valve and pressure reducing orifice, which is set to main steam header road,
And positioned at the upstream of flute type nozzle；
The master control set includes measurement device and PID controller；The measurement device includes thermocouple and pressure sensing
Device is set to entrance and the exit on main steam header road, and signal connects the PID controller；PID controller is also connected with
The feed-regulating valve, the first feed pump, the second feed pump, sleeve pressure reducing valve, and the signal fed back according to measurement device, control
Feed-regulating valve, the first feed pump, the second feed pump, sleeve depressurize valve events.
In one embodiment：Desuperheating water is equipped between the desuperheat water source and the point of the first, second driving branch to filter
Device, the impurity for filtering desuperheat water source.
In one embodiment：The Desuperheating device further includes throttle valve, check (non-return) valve, shut-off valve；The feed-regulating valve and flute
It is equipped with a check (non-return) valve between type nozzle, a section is equipped between the feed-regulating valve and another point of the first, second driving branch
Flow valve；The first driving branch is equipped with check (non-return) valve and shut-off valve；The second driving branch is equipped with check (non-return) valve and shut-off valve.
In one embodiment：It is also drawn one time between the feed-regulating valve and another point of the first, second driving branch
Water branch, the return water branch road are equipped with a throttle valve.
Compared to the prior art, temperature reducing and pressure reducing system provided by the utility model,
(1) Wen Qiulishi pipes and flute type Nozzle combination are used, and using feed-regulating valve according to main steam header way outlet temperature
The variation of degree adjusts the confluent of desuperheating water, and to realize the purpose of desuperheat, desuperheating water manages atomization stabilization in Wen Qiulishi can
It leans on, nozzle is convenient for disassembly and assembly, easy to repair.
(2) sleeve pressure reducing valve is used, out-of-balance force is small, and adjustable range is big, stable action, and card resistance phenomenon is few.
(3) depressurized system and temperature reducing system separately carry out, and it is severe to can be used for operating mode, such as high temperature and pressure (P1≤10Mpa, t1
≤ 550 DEG C), avoid desuperheating water from washing away valve body internals；Or the operating mode of saturated vapor is down to for the lower superheated steam of pressure
(such as central heating p≤12Mpa, t≤250 DEG C).
(4) steam power plant, central heating, food industry, petrochemical industry, textile industry, rubber industry, paper be can be widely applied for
With other industries such as pulp industry, tobacco industry, pharmacy.
Description of the drawings
Fig. 1 is that the system of the utility model temperature reducing and pressure reducing system constitutes schematic diagram.
Specific implementation mode
Fig. 1 is please referred to, the utility model discloses a kind of temperature reducing and pressure reducing system, including：Main steam header road, subtracts decompressor
The inner tube of warm device and master control set, the main steam header road includes one section of Wen Qiulishi pipe 1.
The Desuperheating device includes：Flute type nozzle 21, the first feed pump 23, the second feed pump 24, is given feed-regulating valve 22
Water lines；For the flute type nozzle 21 through main steam header road and in the Wen Qiulishi pipes 1, the other end of flute type nozzle is logical
It crosses supply line and fluidly connects feed-regulating valve 22, the other end of the feed-regulating valve is separately connected the first, second driving branch
Road, connection desuperheat water source after the first, second driving branch converges, first, second feed pump are respectively arranged on the first, second drive
Dynamic branch road.The purpose that the first, second driving branch is arranged is to share the device stress of driving desuperheating water, and is convenient to control
The flow of desuperheating water processed.
The decompressor is made of pressure reducing valve 3 and pressure reducing orifice, which is set to main steam header road, and is located at flute
The upstream of type nozzle 1.In the present embodiment, the pressure reducing valve uses the structure of sleeve pressure reducing valve.
The master control set includes measurement device and PID controller；The measurement device includes that thermocouple 41 and pressure pass
Sensor 42 is set to entrance and the exit on main steam header road, and signal connects the PID controller；PID controller is also
The feed-regulating valve, the first feed pump, the second feed pump, sleeve pressure reducing valve, and the signal fed back according to measurement device are connected,
It controls feed-regulating valve, the first feed pump, the second feed pump, sleeve and depressurizes valve events.
Preferably, it is equipped with desuperheat water filter 5 between the desuperheat water source and the point of the first, second driving branch,
Impurity for filtering desuperheat water source.
In concrete structure, the Desuperheating device further includes throttle valve 25, check (non-return) valve 26, shut-off valve 27；The water supply is adjusted
A check (non-return) valve 26 is equipped between valve 22 and flute type nozzle 1, the feed-regulating valve 22 converges with first, second driving the another of branch
A throttle valve 25 is equipped between point；The first driving branch is equipped with check (non-return) valve 26 and shut-off valve 27；The second driving branch is set
There are check (non-return) valve 26 and shut-off valve 27.
Preferably, a return water branch is also drawn between the feed-regulating valve and another point of the first, second driving branch,
The return water branch road is equipped with a throttle valve 25.
The above is only the preferred embodiment of the present invention, is not intended to limit its scope of the claims, every to utilize this
Equivalent structure transformation made by utility model specification and accompanying drawing content is directly or indirectly used in other relevant technology necks
Domain is equally included in the patent within the scope of the utility model.
Claims (4)
1. a kind of temperature reducing and pressure reducing system, it is characterised in that：It is filled including main steam header road, decompressor, Desuperheating device and master control
It sets, the inner tube on the main steam header road includes that one section of Wen Qiulishi is managed；
The Desuperheating device includes：Flute type nozzle, feed-regulating valve, the first feed pump, the second feed pump, supply line；It is described
For flute type nozzle through main steam header road and in the Wen Qiulishi pipes, the other end of flute type nozzle passes through supply line fluid
Feed-regulating valve is connected, the other end of the feed-regulating valve is separately connected the first, second driving branch, the first, second driving
Connection desuperheat water source after branch converges, first, second feed pump are respectively arranged on the first, second driving branch road；
The decompressor is made of sleeve pressure reducing valve and pressure reducing orifice, which is set to main steam header road, and position
In the upstream of flute type nozzle；
The master control set includes measurement device and PID controller；The measurement device includes thermocouple and pressure sensor,
It is set to entrance and the exit on main steam header road, and signal connects the PID controller；PID controller is also connected with described
Feed-regulating valve, the first feed pump, the second feed pump, sleeve pressure reducing valve, and the signal fed back according to measurement device, control water supply
Regulating valve, the first feed pump, the second feed pump, sleeve depressurize valve events.
2. temperature reducing and pressure reducing system as described in claim 1, it is characterised in that：The desuperheat water source and the first, second driving branch
Desuperheat water filter, the impurity for filtering desuperheat water source are equipped between the point on road.
3. temperature reducing and pressure reducing system as described in claim 1, it is characterised in that：The Desuperheating device further includes throttle valve, non-return
Valve, shut-off valve；A check (non-return) valve is equipped between the feed-regulating valve and flute type nozzle, the feed-regulating valve and first, second drive
It is equipped with a throttle valve between another point of dynamic branch；The first driving branch is equipped with check (non-return) valve and shut-off valve；Described second
Branch is driven to be equipped with check (non-return) valve and shut-off valve.
4. temperature reducing and pressure reducing system as claimed in claim 3, it is characterised in that：The feed-regulating valve and the first, second driving
A return water branch is also drawn between another point of branch, the return water branch road is equipped with a throttle valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820184747.0U CN207945488U (en) | 2018-02-02 | 2018-02-02 | A kind of temperature reducing and pressure reducing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820184747.0U CN207945488U (en) | 2018-02-02 | 2018-02-02 | A kind of temperature reducing and pressure reducing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207945488U true CN207945488U (en) | 2018-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820184747.0U Expired - Fee Related CN207945488U (en) | 2018-02-02 | 2018-02-02 | A kind of temperature reducing and pressure reducing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207945488U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109210375A (en) * | 2018-10-16 | 2019-01-15 | 马鞍山沐及信息科技有限公司 | A kind of Desuperheating and decompressing device for steam |
| 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 |
-
2018
- 2018-02-02 CN CN201820184747.0U patent/CN207945488U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109210375A (en) * | 2018-10-16 | 2019-01-15 | 马鞍山沐及信息科技有限公司 | A kind of Desuperheating and decompressing device for steam |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181009 |
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| CF01 | Termination of patent right due to non-payment of annual fee |