CN215909024U - A boiler deaerator steam recovery and utilization device - Google Patents
A boiler deaerator steam recovery and utilization device Download PDFInfo
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- CN215909024U CN215909024U CN202122449704.5U CN202122449704U CN215909024U CN 215909024 U CN215909024 U CN 215909024U CN 202122449704 U CN202122449704 U CN 202122449704U CN 215909024 U CN215909024 U CN 215909024U
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Abstract
The utility model discloses a steam recycling device of a boiler deaerator, which comprises a deaerator, a deaerator emptying pipe and a steam recycling device with a steam inlet, a water outlet and a water inlet pipeline, wherein the deaerator emptying pipe is connected with the steam inlet of the steam recycling device through a pipeline; the deaerator comprises a water inlet and a water return port, the water inlet is connected with a water outlet of the soft water tank through a pipeline, and the water return port is connected with a water outlet of the steam recovery device through a pipeline; the water inlet pipeline of the steam recovery device is connected with the water outlet pipeline of the soft water tank. Realize inside heat circulation through this application device and use, only provide the supply source of a softened water tank as whole soft water simultaneously, simple structure, with low costs, energy recovery efficiency height.
Description
Technical Field
The utility model relates to a steam recycling device of a boiler deaerator.
Background
The thermal deoxidization is that the boiler feed water is heated to the saturation temperature under the pressure (0.018MPa) of an atmospheric thermal deoxidizer by using steam, the steam pressure on the surface of the water is close to the full pressure of the water surface, the partial pressure of various gases dissolved in the water is close to zero, the feed water does not have the capability of dissolving the gases, and the gases dissolved in the water are separated out, so that the purposes of removing oxygen and protecting thermal equipment and pipelines are achieved. Thermal deoxygenation is one of the most common modes for boiler water supply deoxygenation, and is widely used in the fields of electric power, manufacturing industry and the like. However, let in the oxygen-eliminating device and be used for heating the steam of feedwater and can not be utilized completely, the steam that does not utilize still contains a large amount of heat energy, discharges to the atmosphere through the oxygen-eliminating device evacuation pipe usually, and this just led to the fact the waste of the energy, and in actual conditions, the mechanism for controlling oxygen-eliminating device steam admission amount often has control inaccurate, and the high scheduling problem of reaction delay has further aggravated the waste of energy.
At present, most of residual steam of the deaerator adopts a direct discharging mode, or adopts manual regulation or even closes the steam introduction on the premise of meeting the deaerating temperature requirement so as to reduce the energy waste caused by excessive steam discharging.
In the long run, the direct discharge of the residual steam of the deaerator can cause a large amount of energy waste, which is contrary to the principle of energy saving and consumption reduction, and the direct discharge of the high-temperature and high-pressure steam can generate large noise, which affects the normal life of residents around the factory. The steam inlet amount of the deaerator is manually regulated and controlled, so that the residual steam can be discharged really, the problem that the excess steam is introduced due to the fact that control is not accurate, even misoperation is caused, the pressure of the deaerator rises, and a safety valve jumps is solved, so that energy is consumed, and certain potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a steam recycling device of a boiler deaerator, which can reduce heat loss in time, achieve the purposes of energy conservation and consumption reduction, is convenient for practical production and application, and realizes safe, reliable and quick operation.
In order to achieve the technical purpose, the utility model provides a steam recycling device of a boiler deaerator, which comprises: deaerator and discharge deaerator emptying pipe of surplus steam in the deaerator, wherein: it also includes a vapor recovery device having: the deaerator comprises a steam inlet, a water outlet and a water inlet pipeline, wherein an emptying pipe of the deaerator is connected with the steam inlet of the steam recovery device through a pipeline; the deaerator comprises a water inlet and a water return port, the water inlet is connected with a water outlet of the soft water tank through a pipeline, and the water return port is connected with a water outlet of the steam recovery device through a pipeline; the water inlet pipeline of the steam recovery device is connected with the water outlet pipeline of the soft water tank.
According to the steam recycling device for the boiler deaerator, provided by the utility model, residual steam of the emptying pipe of the deaerator is recycled through the steam recycling device and subjected to heat exchange in the steam recycling device, the exchanged high-temperature soft water flows back through the water return port of the deaerator to form internal heat circulation application, and meanwhile, only one soft water tank is provided as a supply source of the whole soft water, so that the steam recycling device is simple in structure, low in cost and high in energy recycling efficiency.
As a further improvement, a first soft water pump is installed at the water outlet of the soft water tank.
As a further improvement, a second soft water pump is arranged at the outlet of the steam recovery device.
As a further improvement, the vapor recovery device comprises: a water tank for containing soft water and a steam heat exchange pipe positioned inside the water tank.
As a further improvement, the bottom of the deaerator is connected with a deaerating water tank, and the rear part of the water inlet of the deaerator and the rear part of the water return port of the deaerator are connected with a deaerating water tank pipeline.
As a further improvement, a first electromagnetic valve is arranged at the front end of the water inlet pipeline of the steam recovery device, and a second electromagnetic valve is arranged at the front end of the water inlet of the deaerator.
As a further improvement, a third electromagnetic valve is arranged at the front end of the steam inlet of the steam recovery device, and a fourth electromagnetic valve is arranged at the front end of the water return port of the deaerator.
As a further improvement, the bottom of the deaerating water tank is fixedly provided with a support, and the deaerator is also provided with a safety valve.
As a further improvement, a liquid level sensor and a temperature sensor are arranged inside the water tank of the steam recovery device, the liquid level sensor and the temperature sensor respectively detect the liquid level height and the temperature of the soft water inside the water tank, the liquid level sensor is in signal control connection with the first electromagnetic valve, and the temperature sensor is in signal control connection with the fourth electromagnetic valve.
As a further improvement, the liquid level sensor, the temperature sensor, the first solenoid valve, the second solenoid valve, the third solenoid valve, the fourth solenoid valve, the first soft water pump and the second soft water pump are respectively in signal control connection with the production control system.
The utility model has simple structure, convenient use, high automation degree, convenient practical production and application, safety and reliability and improves the energy recovery efficiency.
Drawings
Fig. 1 is a schematic diagram of the working principle of the present invention.
The labels in the figure are: 1. a first soft water pump; 2. a first solenoid valve; 3. a soft water tank; 4. a vapor recovery device; 5. a second solenoid valve; 6. a second soft water pump; 7. a third electromagnetic valve; 8. a fourth solenoid valve; 9. a deaerator emptying pipe; 10. a safety valve; 11. a deoxygenated water tank; 12. a support; 13. a deaerator.
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.
As shown in fig. 1, the present invention provides a steam recycling device for a deaerator of a boiler, comprising: a deaerator 13 and a deaerator emptying pipe 9 for discharging residual steam in the deaerator 13, wherein: it further comprises a vapor recovery device 4, said vapor recovery device 4 having: the deaerator emptying pipe 9 is in pipeline connection with the steam inlet of the steam recovery device 4; the deaerator 13 comprises a water inlet and a water return port, the water inlet is connected with a water outlet of the soft water tank 3 through a pipeline, and the water return port is connected with a water outlet of the steam recovery device 4 through a pipeline; the water inlet pipeline of the steam recovery device 4 is connected with the water outlet phase pipeline of the soft water tank 3.
According to the steam recycling device for the boiler deaerator, provided by the utility model, residual steam of the deaerator emptying pipe 9 is recycled through the steam recycling device 4 and subjected to heat exchange in the steam recycling device, exchanged high-temperature soft water flows back through the water return port of the deaerator 13 to form internal heat circulation application, and meanwhile, only one soft water tank is provided as a supply source of the whole soft water, so that the steam recycling device is simple in structure, low in cost and high in energy recycling efficiency.
As a further improvement, the first soft water pump 1 is installed at the water outlet of the soft water tank 3.
As a further improvement, a second soft water pump 6 is installed at the outlet of the steam recovery device 4.
As a further improvement, the vapor recovery device 4 includes: a water tank for containing soft water and a steam heat exchange pipe positioned inside the water tank.
As a further improvement, the bottom of the deaerator 13 is connected with a deaerating water tank 11, and the rear part of the water inlet of the deaerator 13 and the rear part of the water return port of the deaerator 13 are connected with the deaerating water tank 11 through pipelines.
As a further improvement, a first electromagnetic valve 2 is arranged at the front end of the water inlet pipeline of the steam recovery device 4, and a second electromagnetic valve 5 is arranged at the front end of the water inlet of the deaerator 13.
As a further improvement, a third electromagnetic valve 7 is arranged at the front end of the steam inlet of the steam recovery device 4, and a fourth electromagnetic valve 8 is arranged at the front end of the water return port of the deaerator 13.
As a further improvement, a bracket 12 is fixedly arranged at the bottom of the deaerating water tank 11, and a safety valve 10 is also arranged on the deaerator 13.
As a further improvement, a liquid level sensor and a temperature sensor are arranged inside the water tank of the steam recovery device 4, the liquid level sensor and the temperature sensor respectively detect the liquid level height and the temperature of the soft water inside the water tank, the liquid level sensor is in signal control connection with the first electromagnetic valve 2, and the temperature sensor is in signal control connection with the fourth electromagnetic valve 8.
As a further improvement, the liquid level sensor, the temperature sensor, the first solenoid valve, the second solenoid valve, the third solenoid valve, the fourth solenoid valve, the first soft water pump and the second soft water pump are respectively in signal control connection with the production control system.
The first soft water pump is arranged at the water outlet of the soft water tank and is mainly used for pumping the soft water to the deaerator. The first electromagnetic valve is installed on a water inlet pipeline of the steam recovery device, the opening and closing state of the first electromagnetic valve is controlled by a liquid level signal of the steam recovery device, when the liquid level is low, the first electromagnetic valve is automatically opened to replenish water to the steam recovery device, and when the liquid level reaches a set value, the first electromagnetic valve is automatically closed, so that the liquid level of the steam recovery device is always in a set range.
Steam recovery unit comprises water tank and inside steam heat exchange tube, and the steam heat exchange tube is submerged by water, and the steam recovery unit is introduced through the steam conduit to the oxygen-eliminating device surplus steam, carries out the heat exchange through heat exchange tube and soft water, heats the soft water temperature to about 90 ℃, and the softened water after the heating passes through second soft water pump to deoxidization water tank.
The fourth solenoid valve is installed on steam recovery unit's outlet pipeline, and its on-off state is controlled by steam recovery unit's temperature, and when the temperature reached the setting value, the fourth solenoid valve was opened, and the second soft water pump starts, and the hot water among the steam recovery unit can get into the deoxidization water tank smoothly.
As the working principle diagram shown in fig. 1, the deaerator emptying pipe is connected with the steam recovery device, the deaerator residual steam can enter the steam recovery device through the emptying pipe, the heat exchange pipe is installed in the steam recovery device, the residual steam carries out sufficient heat exchange with the soft water surrounded by the outside in the heat exchange pipe, the soft water is heated to a set temperature by a normal temperature, and the heated water enters the deaerating water tank through the second soft water pump and the fourth electromagnetic valve. Therefore, after the residual steam is subjected to secondary heat exchange utilization, waste of steam waste heat is avoided.
According to the technical scheme, the residual steam of the deaerator is secondarily utilized, so that the equipment efficiency is improved, and the energy waste is reduced; the steam inlet amount of the deaerator does not need to be adjusted manually, the operation flow is simplified, the working efficiency is improved, and potential safety hazards caused by manual misoperation are avoided. The temperature and the pressure of the steam after secondary utilization are greatly reduced, and at the moment, the discharge does not generate larger noise any more.
The utility model mainly solves the problem of how to utilize the residual steam of the deaerator. It installs one set of steam recovery unit additional on original heating power deoxidization system's basis, and the device utilizes the heat of surplus steam to preheat the oxygen-eliminating device feedwater, carries out reutilization to oxygen-eliminating device surplus steam, and the steam heat that utilizes of at utmost reduces the heat loss, reaches energy saving and consumption reduction's purpose.
The utility model can carry out secondary utilization on the residual steam of the deaerator, fully utilizes the heat energy of the steam, preheats the boiler feed water in advance, reduces the water hammer phenomenon caused by larger water temperature difference, simplifies the operation process while saving energy, and improves the efficiency of equipment and personnel. The device has the advantages of simple structure, convenient use, high automation degree, convenient practical production and application, safety, reliability and improvement on energy recovery efficiency.
It is to be understood that the scope of the present invention is not to be limited to the non-limiting embodiments, which are illustrated as examples only. The essential protection sought herein is further defined in the scope provided by the independent claims, as well as in the claims dependent thereon.
Claims (10)
1. The utility model provides a boiler oxygen-eliminating device steam recycle device which includes: deaerator with discharge deaerator emptying pipe of surplus steam in the deaerator, its characterized in that:
it also includes a vapor recovery device having: the deaerator comprises a steam inlet, a water outlet and a water inlet pipeline, wherein an emptying pipe of the deaerator is connected with the steam inlet of the steam recovery device through a pipeline;
the deaerator comprises a water inlet and a water return port, the water inlet is connected with a water outlet of the soft water tank through a pipeline, and the water return port is connected with a water outlet of the steam recovery device through a pipeline;
the water inlet pipeline of the steam recovery device is connected with the water outlet pipeline of the soft water tank.
2. The steam recycling device of the boiler deaerator is characterized in that: the soft water tank is provided with a first soft water pump at the water outlet.
3. The steam recycling device of the boiler deaerator is characterized in that: and a second soft water pump is installed at the outlet of the steam recovery device.
4. The steam recycling device of the boiler deaerator is characterized in that: the vapor recovery device includes: a water tank for containing soft water and a steam heat exchange pipe positioned inside the water tank.
5. The steam recycling device of the boiler deaerator is characterized in that: the bottom of oxygen-eliminating device is connected with the deoxidization water tank, the oxygen-eliminating device the rear portion of water inlet with the oxygen-eliminating device the rear portion of return water mouth all with deoxidization water tank pipeline links to each other.
6. The steam recycling device of the boiler deaerator is characterized in that: a first electromagnetic valve is arranged at the front end of the water inlet pipeline of the steam recovery device, and a second electromagnetic valve is arranged at the front end of the water inlet of the deaerator.
7. The steam recycling device of the boiler deaerator is characterized in that: and a third electromagnetic valve is arranged at the front end of the steam inlet of the steam recovery device, and a fourth electromagnetic valve is arranged at the front end of the water return port of the deaerator.
8. The steam recycling device of the boiler deaerator is characterized in that: the bottom fixed mounting of deoxidization water tank has the support, still install the relief valve on the oxygen-eliminating device.
9. The steam recycling device of the boiler deaerator is characterized in that: steam recovery unit the inside of water tank has arranged level sensor and temperature sensor, level sensor with temperature sensor detects respectively inside the water tank the liquid level height and the temperature of soft water, level sensor with first solenoid valve signal control connects, temperature sensor with fourth solenoid valve signal control connects.
10. The steam recycling device of the boiler deaerator is characterized in that: the liquid level sensing, and the temperature sensor, the first solenoid valve, the second solenoid valve, the third solenoid valve, the fourth solenoid valve, the first soft water pump and the second soft water pump are respectively connected with the production control system by signal control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122449704.5U CN215909024U (en) | 2021-10-12 | 2021-10-12 | A boiler deaerator steam recovery and utilization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122449704.5U CN215909024U (en) | 2021-10-12 | 2021-10-12 | A boiler deaerator steam recovery and utilization device |
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| Publication Number | Publication Date |
|---|---|
| CN215909024U true CN215909024U (en) | 2022-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122449704.5U Active CN215909024U (en) | 2021-10-12 | 2021-10-12 | A boiler deaerator steam recovery and utilization device |
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| Country | Link |
|---|---|
| CN (1) | CN215909024U (en) |
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2021
- 2021-10-12 CN CN202122449704.5U patent/CN215909024U/en active Active
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