CN211259947U - Temperature and pressure reducing device - Google Patents
Temperature and pressure reducing device Download PDFInfo
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- CN211259947U CN211259947U CN201922210314.5U CN201922210314U CN211259947U CN 211259947 U CN211259947 U CN 211259947U CN 201922210314 U CN201922210314 U CN 201922210314U CN 211259947 U CN211259947 U CN 211259947U
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- valve
- temperature
- pressure reducing
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- pipeline
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000007921 spray Substances 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 230000003628 erosive effect Effects 0.000 claims description 3
- 238000000889 atomisation Methods 0.000 abstract description 2
- 230000006837 decompression Effects 0.000 abstract description 2
- 230000004308 accommodation Effects 0.000 abstract 1
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
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Abstract
The utility model discloses a temperature and pressure reducing device, which comprises a steam pipeline, a temperature reducing system, a pressure reducing system, a safety protection system and a control device; the steam pipeline is provided with a pressure transmitter, a temperature sensor and a steam flow sensor; the temperature reducing system comprises a nozzle and a water pipeline; the pressure reducing system comprises a pressure reducing valve; the safety protection system comprises a safety valve, a steam exhaust pipe of the safety valve is S-shaped, the section of a steam exhaust port of the steam exhaust pipe is inclined, and a drain pipe is arranged at the lowest part of the steam exhaust pipe; the control device is connected with the pressure transmitter, the temperature sensor and the steam flow sensor and is connected with the pressure reducing valve and the control end of the safety valve. The utility model discloses a two seat relief pressure valve structures, unbalanced force is little, and accommodation is big. The venturi tube and the flute-shaped nozzle are adopted, so that the atomization is stable and reliable, and the nozzle is convenient to disassemble and assemble. The decompression system and the temperature reduction system are separated, and the device can be used for the condition of severe working conditions. And a sensor and a control device with high precision are adopted, so that the precision, the stability and the reliability of the system are greatly improved.
Description
Technical Field
The utility model relates to a temperature and pressure reduction technical field especially relates to a temperature and pressure reduction device.
Background
Modern power engineering and thermal energy technology requires high-temperature high-pressure boilers to produce extremely superheated steam. However, for certain plant process requirements, such steam may be overdry or superheated. For example: when the heat exchanger is used in a process operation, the utility superheated steam is less efficient due to the low heat transfer coefficient, and the use of saturated steam is more appropriate. In addition, when the high pressure dry saturated steam is depressurized to a low pressure, a degree of superheat is generated at the downstream outlet. This requires the superheated steam to be cooled to the desired near saturation temperature, which requires a desuperheater. In many cases it is desirable to simultaneously desuperheat and depressurize the high pressure superheated steam.
SUMMERY OF THE UTILITY MODEL
In order to solve the above-mentioned defects, the utility model aims to provide a temperature and pressure reducing device which has simple structure and reasonable design, can fully save heat energy and reasonably use heat energy.
In order to achieve the above object, the utility model discloses a following technical scheme realizes: the temperature and pressure reduction device comprises a steam pipeline, a temperature reduction system, a pressure reduction system, a safety protection system and a control device; wherein,
the steam pipeline is provided with a pressure transmitter, a temperature sensor and a steam flow sensor;
the temperature reduction system comprises a nozzle arranged in a steam pipeline and a water pipeline communicated with the nozzle;
the pressure reducing system comprises a pressure reducing valve which is arranged on the steam pipeline and communicated with the steam pipeline;
the safety protection system comprises a safety valve arranged on a steam pipeline, a steam exhaust pipe of the safety valve is S-shaped, the section of a steam exhaust port of the steam exhaust pipe is inclined, and a drain pipe is arranged at the lowest part of the steam exhaust pipe;
the control device is connected with signals of the pressure transmitter, the temperature sensor and the steam flow sensor, and an output control signal of the control device is connected with the control ends of the pressure reducing valve and the safety valve.
Further, a filter and an erosion protection device are arranged at the inlet of the steam pipeline.
Further, the water conveying pipeline is a Venturi tube.
Furthermore, the nozzle is a flute-shaped nozzle which is of a hollow structure, and a spraying end of the flute-shaped nozzle is provided with a spraying small hole.
Furthermore, a water supply regulating valve, a throttle valve, a check valve and a stop valve are arranged on the water conveying pipeline, and an output control signal of the control device is connected with the control ends of the water supply regulating valve, the throttle valve, the check valve and the stop valve.
Further, the safety valve comprises a main safety valve, an impulse safety valve and a spring safety valve.
Further, the pressure reducing valve adopts a double-seat pressure reducing valve.
The utility model has the advantages that: and a double-seat pressure reducing valve structure is adopted, so that the unbalanced force is small, and the adjusting range is large. The temperature reduction system adopts a Venturi tube and a flute-shaped nozzle, so that the atomization is stable and reliable, and the nozzle is convenient to disassemble and assemble. The decompression system and the temperature reduction system are separated, and the device can be used for the condition of severe working conditions. And a sensor and a control device with high precision are adopted, so that the precision, the stability and the reliability of the system are greatly improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Wherein: 1. steam pipeline, 2, control device, 3, pressure transmitter, 4, temperature sensor, 5, steam flow sensor, 6, nozzle, 7, water pipeline, 8, relief valve, 9, relief valve, 10, steam exhaust pipe, 11, drain pipe, 12, feed water regulating valve, 13, throttle valve, 14, check valve, 15, stop valve.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1, the temperature and pressure reduction device comprises a steam pipeline 1, a temperature reduction system, a pressure reduction system, a safety protection system and a control device 2. Wherein, the steam pipeline 1 is provided with a pressure transmitter 3, a temperature sensor 4 and a steam flow sensor 5; the inlet of the steam pipeline 1 is provided with a filter and an erosion protection device. The pressure reducing system comprises a pressure reducing valve 8 which is arranged on the steam pipeline 1 and communicated with the steam pipeline 1, and the pressure reducing valve 8 adopts a double-seat pressure reducing valve. The control device 2 is connected with signals of the pressure transmitter 3, the temperature sensor 4 and the steam flow sensor 5, and an output control signal of the control device 2 is connected with control ends of a pressure reducing valve 8 and a safety valve 9.
The temperature reducing system comprises a nozzle 6 arranged in the steam pipeline 1 and a water pipeline 7 communicated with the nozzle 6; the water delivery pipeline 7 is a Venturi tube. The nozzle 6 is a flute-shaped nozzle which is of a hollow structure, and a spray end of the flute-shaped nozzle is provided with a spray small hole. The water pipe 7 is provided with a water supply regulating valve 12, a throttle valve 13, a check valve 14 and a stop valve 15, and the output control signal of the control device 2 is connected with the control ends of the water supply regulating valve 12, the throttle valve 13, the check valve 14 and the stop valve 15.
The safety protection system comprises a safety valve 9 arranged on the steam pipeline 1, a steam exhaust pipe 10 of the safety valve 9 is S-shaped, the section of a steam exhaust opening of the steam exhaust pipe 10 is inclined, and a drain pipe 11 is arranged at the lowest part of the steam exhaust pipe 10. The safety valve 9 includes a main safety valve, an impulse safety valve, and a spring safety valve.
The utility model discloses a theory of operation does: high-temperature and high-pressure steam firstly enters the steam pipeline 1 from the steam inlet, and the temperature-reduced water enters the water conveying pipeline 7 from the water inlet. The steam pipeline 1 passes through a pressure reducing valve 8, the pressure reducing valve 8 is controlled by a control device 2, and the pressure reducing valve 8 is driven to reciprocate up and down, so that the pressure of steam is adjusted. The temperature-reducing water is sprayed into the steam pipeline 1 in a mist form through the water pipeline 7 to the nozzle 6 to reduce the temperature, so that the purposes of reducing pressure and reducing the temperature are achieved. The steam after temperature and pressure reduction is output through a steam pipeline 12 after meeting the working condition requirement.
Claims (7)
1. The temperature and pressure reduction device is characterized in that: comprises a steam pipeline, a temperature reducing system, a pressure reducing system, a safety protection system and a control device; wherein,
the steam pipeline is provided with a pressure transmitter, a temperature sensor and a steam flow sensor;
the temperature reduction system comprises a nozzle arranged in a steam pipeline and a water pipeline communicated with the nozzle;
the pressure reducing system comprises a pressure reducing valve which is arranged on the steam pipeline and communicated with the steam pipeline;
the safety protection system comprises a safety valve arranged on a steam pipeline, a steam exhaust pipe of the safety valve is S-shaped, the section of a steam exhaust port of the steam exhaust pipe is inclined, and a drain pipe is arranged at the lowest part of the steam exhaust pipe;
the control device is connected with signals of the pressure transmitter, the temperature sensor and the steam flow sensor, and an output control signal of the control device is connected with the control ends of the pressure reducing valve and the safety valve.
2. A temperature and pressure reducing apparatus according to claim 1, wherein: and a filter and an erosion protection device are arranged at the inlet of the steam pipeline.
3. A temperature and pressure reducing apparatus according to claim 1, wherein: the water conveying pipeline is a Venturi tube.
4. A temperature and pressure reducing apparatus according to claim 1, wherein: the spray nozzle is a flute-shaped spray nozzle, the flute-shaped spray nozzle is of a hollow structure, and a spray end of the flute-shaped spray nozzle is provided with a spray small hole.
5. A temperature and pressure reducing apparatus according to claim 1, wherein: the water pipe is provided with a water supply regulating valve, a throttle valve, a check valve and a stop valve, and the output control signal of the control device is connected with the control ends of the water supply regulating valve, the throttle valve, the check valve and the stop valve.
6. A temperature and pressure reducing apparatus according to claim 1, wherein: the safety valve comprises a main safety valve, an impulse safety valve and a spring safety valve.
7. A temperature and pressure reducing apparatus according to claim 1, wherein: the pressure reducing valve adopts a double-seat pressure reducing valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922210314.5U CN211259947U (en) | 2019-12-11 | 2019-12-11 | Temperature and pressure reducing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922210314.5U CN211259947U (en) | 2019-12-11 | 2019-12-11 | Temperature and pressure reducing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211259947U true CN211259947U (en) | 2020-08-14 |
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ID=71958628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922210314.5U Active CN211259947U (en) | 2019-12-11 | 2019-12-11 | Temperature and pressure reducing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211259947U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113404920A (en) * | 2021-06-09 | 2021-09-17 | 常州华伦热电有限公司 | Accurate pressure regulating pipeline device based on supply of desuperheating water |
-
2019
- 2019-12-11 CN CN201922210314.5U patent/CN211259947U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113404920A (en) * | 2021-06-09 | 2021-09-17 | 常州华伦热电有限公司 | Accurate pressure regulating pipeline device based on supply of desuperheating water |
| CN113404920B (en) * | 2021-06-09 | 2023-07-07 | 常州华伦热电有限公司 | Accurate pressure regulating pipeline device based on temperature reduction water supply |
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Address after: No.1088, Fuyuan Road, Qidong Economic Development Zone, Nantong City, Jiangsu Province, 226200 Patentee after: JIANGSU CLASSIC ENERGY EQUIPMENT Co.,Ltd. Address before: No.1088, Fuyuan Road, Nantong Economic Development Zone, Jiangsu Province, 226000 Patentee before: JIANGSU CLASSIC ENERGY EQUIPMENT Co.,Ltd. |