CN221322494U - Low-parameter steam power generation and utilization system - Google Patents
Low-parameter steam power generation and utilization system Download PDFInfo
- Publication number
- CN221322494U CN221322494U CN202323504577.XU CN202323504577U CN221322494U CN 221322494 U CN221322494 U CN 221322494U CN 202323504577 U CN202323504577 U CN 202323504577U CN 221322494 U CN221322494 U CN 221322494U
- Authority
- CN
- China
- Prior art keywords
- steam
- pipe
- bypass
- valve
- generator unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000010248 power generation Methods 0.000 title claims abstract description 14
- 230000001105 regulatory effect Effects 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 238000009792 diffusion process Methods 0.000 abstract description 3
- 239000002918 waste heat Substances 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Landscapes
- Control Of Turbines (AREA)
Abstract
The utility model belongs to the field of waste heat utilization and discloses a low-parameter steam power generation utilization system which comprises a steam main pipe, a first steam pipe, a back pressure steam turbine generator unit, a second steam pipe and an ORC generator unit which are connected in sequence; each low-parameter steam branch pipe is connected to the steam main pipe; a steam regulating valve is arranged on the first steam pipe; a check valve is arranged on the second steam pipe; the steam control valve further comprises a bypass steam pipe, one end of the bypass steam pipe is connected with the first steam pipe and located at the front position of the valve of the steam control valve, the other end of the bypass steam pipe is connected with the second steam pipe and located at the rear position of the valve of the check valve, and the bypass steam pipe is provided with a bypass valve. According to the utility model, the back pressure type steam turbine generator unit and the ORC generator unit are used for fully recovering steam pressure energy and heat energy, and when the steam parameters do not meet the steam inlet requirements, the steam directly enters the ORC generator unit, so that the steam heat energy is fully utilized, the working medium is recovered, and the steam diffusion condition is avoided.
Description
Technical Field
The utility model relates to the field of waste heat utilization, in particular to a low-parameter steam power generation utilization system.
Background
In the iron and steel and chemical industry, there are various heating furnaces and reaction furnaces, the heating furnaces and the reaction furnaces usually discharge flue gas with a certain temperature, the flue gas contains a part of recoverable heat, and the discharge capacity is generally 4-7 ten thousand Nm 3/h, the temperature is about 350 ℃, and the heating furnace and the reaction furnace are mainly used for generating low-parameter steam.
Along with the execution of related policies of national energy conservation and emission reduction and carbon-to-carbon neutralization, partial waste heat resources are utilized, and enterprises generally adopt condensing steam turbines to generate power after converging various low-parameter low-flow steam. At present, because the conditions of production adjustment exist in the chemical industry and the steel industry, the steam generated by each heating furnace and each reaction furnace fluctuates, the temperature, the pressure and the flow are all changed, and the steam pipeline is longer, the temperature drop and the pressure drop are larger, so that the steam inlet parameters of the steam turbine are unstable, the water content is large, and the safe operation of a unit is influenced; in addition, when the steam flow is lower than 40% of the rated flow, the operation of the steam turbine is not stable, and a shutdown steam bleeding mode is usually adopted for treatment. And how to safely and stably utilize the steam with low parameters and relatively large fluctuation is of interest to the industry.
Disclosure of utility model
The utility model aims to solve the problem that the safety operation of a unit is affected due to unstable steam inlet parameters and large water content of the existing low-parameter steam generated by a condensing steam turbine. To this end, the present utility model provides a low parameter steam power generation utilization system.
The technical scheme adopted for solving the technical problems is as follows:
The low-parameter steam power generation utilization system comprises a steam main pipe, a first steam pipe, a back pressure steam turbine generator unit, a second steam pipe and an ORC generator unit which are connected in sequence; each low-parameter steam branch pipe is connected to the steam master pipe; a steam regulating valve is arranged on the first steam pipe; a check valve is arranged on the second steam pipe; the steam control device is characterized by further comprising a bypass steam pipe, one end of the bypass steam pipe is connected with the first steam pipe and located at the front position of the steam regulating valve, the other end of the bypass steam pipe is connected with the second steam pipe and located at the rear position of the check valve, and a bypass valve is arranged on the bypass steam pipe.
Preferably, the steam main pipe is also provided with a steam flowmeter, a pressure measuring device and a temperature measuring device.
Preferably, the steam regulating valve and the bypass valve are electric valves or electromagnetic valves.
Preferably, the condensate water of the ORC generator set enters a condensate water tank, and the condensate water in the condensate water tank is pumped to a water consumption point through the condensate water.
Compared with the prior art, the utility model has the beneficial effects that:
According to the utility model, the back pressure type steam turbine generator unit and the ORC generator unit are used for fully recovering steam pressure energy and heat energy, and when the steam parameters do not meet the steam inlet requirements, the steam directly enters the ORC generator unit, so that the steam heat energy is fully utilized, the working medium is recovered, and the steam diffusion condition is avoided; by arranging the steam regulating valve and the check valve, the back pressure type steam turbine generator unit is completely isolated when the ORC generator unit works independently, and the safety of the system is ensured; the system can realize that the power generation system keeps safe and stable operation under different steam parameters.
Drawings
For a clearer description of the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the description below are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art, wherein:
fig. 1 is a schematic diagram of a low-parameter steam power generation utilization system according to the present utility model.
In the drawings, the list of components represented by the various numbers is as follows:
1-steam main pipe, 1.0-low parameter steam branch pipe, 2-first steam pipe, 3-back pressure type turbo generator set, 4-second steam pipe, 5-ORC generator set, 6-condensate tank, 7-steam regulating valve, 8-check valve, 9-condensate pump, 10-bypass steam pipe, 11-bypass valve, 12-steam flowmeter, 13-pressure measuring device and 14-temperature measuring device.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present utility model;
Furthermore, the description of the terms "first," "second," and the like herein are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. The terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
Example 1
The embodiment provides a low-parameter steam power generation and utilization system, as shown in fig. 1, which comprises a steam main pipe 1, a first steam pipe 2, a back pressure steam turbine generator unit 3, a second steam pipe 4, an ORC generator unit 5 and a condensate tank 6 which are sequentially connected, wherein a steam regulating valve 7 is arranged on the first steam pipe 2, and a check valve 8 is arranged on the second steam pipe 4. Each low parameter steam branch pipe 1.0 is connected to the steam header 1, namely: the steam header 1 merges low-parameter steam generated by a low-parameter steam pipe network into 1; the steam collected in the steam main pipe 1 enters the back pressure type steam turbine generator unit 3 through the steam regulating valve 7 to do expansion work to output electric energy, the steam after doing work enters the ORC generator unit 5 through the check valve 8, the heat energy of the steam is further utilized, the steam is condensed into water after heat release, the condensed water enters the condensate tank 6, and the condensed water is sent to a water point through the condensate pump 9.
Example two
On the basis of the first embodiment, as shown in fig. 1, a bypass steam pipe 10 is further provided in this embodiment, one end of the bypass steam pipe 10 is connected to the first steam pipe 2 and located at a position in front of the valve of the steam regulating valve 7, the other end is connected to the second steam pipe 4 and located at a position behind the check valve 8, and a bypass valve 11 is provided on the bypass steam pipe 10.
When the steam parameters are unsuitable to enter the back pressure type steam turbine generator unit, the steam directly enters the ORC generator unit through the bypass valve to generate electricity, and the working medium is recovered. Considering the safety of operation, when the bypass valve is opened, the steam regulating valve is closed, and the steam source of the back pressure type steam turbine generator unit is ensured to be cut off by means of the check valve, so that the safety of the system is improved.
Preferably, in the above embodiment, the steam flow meter 12, the pressure measuring device 13, and the temperature measuring device 14 are further disposed on the steam header 1, where the pressure measuring device may be a pressure transmitter or a pressure gauge, and the temperature measuring device may be a thermocouple or an infrared thermometer. Utilize pressure measuring device and temperature measuring device real-time supervision steam pressure and steam temperature in the steam main pipe, the steam flowmeter is used for detecting the volumetric flow of steam in the steam main pipe, realizes the control to steam parameter.
Preferably, in the above embodiment, the steam adjusting valve 7 and the bypass valve 11 are electric valves or electromagnetic valves.
Working principle: the pressure measuring device, the temperature measuring device and the steam flowmeter are utilized to monitor the steam parameters in the steam main pipe in real time, and provide guidance for the steam utilization mode. When the steam parameters meet the steam inlet requirements of the back pressure type steam turbine generator unit, the bypass valve is closed, the steam regulating valve is opened, and the full recovery of steam pressure energy and heat energy is realized through the combination of the back pressure type steam turbine generator unit and the ORC generator unit; when the steam parameters can not meet the steam inlet requirement of the back pressure type steam turbine generator unit, the bypass valve is opened, the steam regulating valve is closed, steam directly enters the ORC power generation device, the steam heat energy is fully utilized, the working medium is recovered, and the steam diffusion condition is avoided.
The control is automatically completed in the control room by the upper computer.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related arts are included in the scope of the present utility model.
Claims (4)
1. A low parameter steam power generation utilization system, characterized in that: the system comprises a steam main pipe, a first steam pipe, a back pressure steam turbine generator unit, a second steam pipe and an ORC generator unit which are connected in sequence;
each low-parameter steam branch pipe is connected to the steam master pipe;
A steam regulating valve is arranged on the first steam pipe;
a check valve is arranged on the second steam pipe;
The steam control device is characterized by further comprising a bypass steam pipe, one end of the bypass steam pipe is connected with the first steam pipe and located at the front position of the steam regulating valve, the other end of the bypass steam pipe is connected with the second steam pipe and located at the rear position of the check valve, and a bypass valve is arranged on the bypass steam pipe.
2. The low parameter steam power generation utilization system of claim 1, wherein: and the steam main pipe is also provided with a steam flowmeter, a pressure measuring device and a temperature measuring device.
3. The low parameter steam power generation utilization system of claim 2, wherein: the steam regulating valve and the bypass valve are both electric valves or electromagnetic valves.
4. A low parameter steam power generation utilization system in accordance with claim 3, wherein: and the condensed water of the ORC generator set enters a condensed water tank, and the condensed water in the condensed water tank is pumped to a water consumption point through the condensed water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323504577.XU CN221322494U (en) | 2023-12-21 | 2023-12-21 | Low-parameter steam power generation and utilization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323504577.XU CN221322494U (en) | 2023-12-21 | 2023-12-21 | Low-parameter steam power generation and utilization system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221322494U true CN221322494U (en) | 2024-07-12 |
Family
ID=91785865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323504577.XU Active CN221322494U (en) | 2023-12-21 | 2023-12-21 | Low-parameter steam power generation and utilization system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221322494U (en) |
-
2023
- 2023-12-21 CN CN202323504577.XU patent/CN221322494U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111577410B (en) | Gas turbine inlet air temperature control device and gas turbine inlet air temperature control method | |
| CN106838865B (en) | Completely thermoelectric decoupling steam extraction and heat supply power station system and working method | |
| CN110207092A (en) | A kind of fired power generating unit power generation peak adjusting system and method based on the full heat heating fused salt accumulation of heat of steam | |
| CN107905858B (en) | Final stage safety flow monitoring and controlling system and method | |
| CN110671741A (en) | High back pressure heat supply safety monitoring method for direct air cooling unit | |
| CN110930050A (en) | Peak regulation capability improvement and evaluation method for heat supply unit after heat storage tank technical flexibility modification | |
| CN117090647A (en) | SOEC-coupled coal-fired power generation system and unit depth peak regulation operation method | |
| CN111058902A (en) | Energy-saving system and energy-saving control method based on industrial steam turbine asynchronous power generation | |
| CN205779061U (en) | Coal mine gas gradient thermoelectric cold supply system | |
| CN221322494U (en) | Low-parameter steam power generation and utilization system | |
| CN204987895U (en) | Take sintering waste heat power generation facility of external overheated after burning | |
| CN110118346B (en) | Nuclear power starting electric boiler hot standby system and method | |
| CN1377097A (en) | Combined electric generator system integrating fuel battery of carbonate with turbine | |
| CN214170638U (en) | Gas turbine inlet temperature control device | |
| CN109099498A (en) | It is a kind of to couple the technique and method for generating thermoelectricity decoupling by coal dust firing flue gas shunting | |
| CN212390339U (en) | Boiler is to empty exhaust comprehensive recovery unit | |
| CN109187036B (en) | Main steam flow calculation method of main pipe back pressure type steam turbine | |
| CN208040466U (en) | Final stage safe traffic Monitoring and control system | |
| CN112855287A (en) | Low-pressure-increasing operation system and method for steam extraction temporary complementary coupling low-pressure-saving under cylinder cutting working condition | |
| CN107191232B (en) | Heating system of electric heating unit | |
| CN209101377U (en) | It is a kind of to couple the process unit for generating thermoelectricity decoupling by coal dust firing flue gas shunting | |
| CN220958521U (en) | System for lifting primary hot air temperature based on high-temperature flue gas | |
| CN217400983U (en) | Safe and efficient heat supply system of gas-steam combined cycle straight condensing generator set | |
| CN215333020U (en) | Steam inlet system of double-pressure steam turbine for natural gas waste heat power generation | |
| CN219605361U (en) | Thermal power flexible unit management and control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |