CN211952726U - Forced circulation heating deaerating plant and exhaust-heat boiler water supply system of exhaust-heat boiler - Google Patents
Forced circulation heating deaerating plant and exhaust-heat boiler water supply system of exhaust-heat boiler Download PDFInfo
- Publication number
- CN211952726U CN211952726U CN202020359083.4U CN202020359083U CN211952726U CN 211952726 U CN211952726 U CN 211952726U CN 202020359083 U CN202020359083 U CN 202020359083U CN 211952726 U CN211952726 U CN 211952726U
- Authority
- CN
- China
- Prior art keywords
- water
- economizer
- deaerator
- heat boiler
- circulating
- 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
Images
Landscapes
- Physical Water Treatments (AREA)
Abstract
The application discloses exhaust-heat boiler's forced circulation heating deaerating plant and exhaust-heat boiler water supply system, the device includes: the deaerator comprises a softened water inlet, a deaerated water outlet, a circulating water return port and a steam exhaust port, wherein the deaerated water outlet is connected to a water inlet of a steam drum of the waste heat boiler; the coal economizer is arranged in the flue and used for circularly heating part of water in the deaerator; and the circulating water pump is connected with a circulating water outlet of the deaerator and a water inlet of the economizer and is used for forcibly circulating part of boiler feed water in the deaerator to the economizer for heating, and returning saturated temperature water heated in the economizer to the deaerator. The influence of the water circulation on the heating surface of the waste heat boiler is small; the extraction steam required by the heating and the deoxidization of the deaerator is saved, the steam pipeline is reduced, and the heat loss and the pressure loss of the system are reduced; the feed water temperature of the economizer is improved, and the low-temperature corrosion of the economizer is prevented.
Description
Technical Field
The application relates to the technical field of solid waste incineration, in particular to a forced circulation feed water heating and deoxidizing device of a waste heat boiler of a non-power generation solid waste incineration system.
Background
In the boiler feed water treatment process, oxygen removal is a very important link. Oxygen is the main corrosive substance on the heated surfaces in the boiler and if oxygen in the feedwater system cannot be removed, it can corrode the heated surfaces and other components of the boiler. Iron oxide generated by the reaction of corrosive substance oxygen and iron element enters a boiler circulating system and finally deposits or adheres to the wall and the heated surface of the boiler pipe to form indissolvable and poor heat transfer iron scale. The iron scale can cause pit spots on the inner wall of the pipeline, and the resistance coefficient is increased. If the pipeline corrodes to a certain extent, a pipeline explosion accident may occur. The national regulation requires that the feed water of a steam boiler with the evaporation capacity of more than or equal to 2 tons per hour and a hot water boiler with the water temperature of more than or equal to 95 ℃ is deoxidized.
The current deaerator modes mainly comprise thermal deaerating and chemical deaerating. 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. Chemical deoxidization is to add chemical substances such as steel scraps or sodium sulfite into a deoxidizer to make oxygen dissolved in water react with the chemical substances, so as to achieve the purpose of deoxidization.
In a conventional waste incineration power plant, an Economizer (the english name Economizer) is a device which is installed at the lower part of a tail flue of a waste heat boiler and used for recovering waste heat of exhaust smoke of the waste heat boiler, and boiler feed water is heated into a heated surface of saturated water under the pressure of a steam drum. In a traditional water supply heating oxygen removal system (as shown in figure 1), an economizer is arranged in a waste heat boiler, and water entering a steam drum is heated in the economizer; the deaerator heats boiler feed water to deaerate, then sends the heated boiler feed water into the economizer through the feed pump, high-temperature steam required by deaerator is led out from the steam turbine, enters the deaerator after being transmitted through a pipeline, and is mixed with the boiler feed water to deaerate. This inevitably results in steam turbine exhaust losses, and also in heat and pressure losses when the steam is piped. The improper operation management of the deaerator can also cause higher steam exhaust loss, and the empirical value of the steam exhaust loss of the deaerator is 0.100-0.300 percent of the output power of the deaerator, thus causing heat loss.
The solid waste incineration does not meet the requirements of steam turbine power generation due to the particularity of the materials, small treatment scale and low steam quality in general. The steam or the pressure-reduced steam from the steam drum is generally adopted to heat and deoxidize the feed water in the deaerator, so that the waste heat utilization capacity of the externally-supplied steam of the solid waste incineration system is reduced.
SUMMERY OF THE UTILITY MODEL
The waste heat boiler of the solid waste incineration system is combined, the original steam-water flow is changed, and the novel forced circulating feedwater heating and deoxidizing device and method of the economizer of the waste heat boiler are provided.
Forced circulation heating deaerating plant of exhaust-heat boiler includes:
the deaerator comprises a softened water inlet, a deaerated water outlet, a circulating water return port and a steam outlet, wherein the deaerated water outlet is connected to a water inlet of a steam drum of the waste heat boiler;
the coal economizer is arranged in the flue and used for circularly heating part of boiler feed water in the deaerator; and
and the water inlet and the water outlet of the circulating water pump are respectively connected with the circulating water outlet of the deaerator and the water inlet of the economizer, and the circulating water pump is used for forcibly circulating part of boiler feed water in the deaerator to the economizer to heat the economizer and returning saturated temperature water heated in the economizer to the deaerator.
And the water inlet and the water outlet of the circulating water pump are respectively connected with the circulating water outlet of the deaerator and the water inlet of the coal economizer, namely the water inlet of the circulating water pump is connected with the circulating water outlet of the deaerator, and the water outlet of the circulating water pump is connected with the water inlet of the coal economizer.
In the application, the deaerator is a deaerator in the existing equipment, and except for an original water inlet and an original water outlet of the deaerator, a circulating water outlet and a circulating water return port are additionally arranged; the coal economizer is a conventional coal economizer in the existing system, is arranged in a flue at the tail part of the boiler instead of an exhaust-heat boiler, and is heated by high-temperature flue gas in the flue.
The working pressure in the coal economizer is higher than that in the deaerator, the working pressure in the deaerator is 0.018MPa of that of a conventional atmospheric deaerator, and saturated temperature water returned by the coal economizer into the deaerator is subjected to pressure reduction, boiling and deaerating after the pressure is reduced to 0.018 MPa. For example, the operating pressure in the economizer is greater than 0.6MPa, such as 0.6MPa or 1MPa, the operating pressure in the deaerator is 0.018MPa, the saturated temperature water temperature returned by the 0.6MPa economizer is 165 ℃, the saturated temperature water temperature returned by the 1MPa economizer is 184 ℃, the saturated temperature water temperature is mixed with the rest softened water in the deaerator, and the softened water in the deaerator is boiled after the returned saturated temperature water is reduced to 0.018MPa, so that the purpose of deaerating is achieved.
Saturated water coming from the coal economizer in the application is depressurized to 0.018MPa in the deaerator, feed water is boiled in the deaerator for deaerating, and steam is not required to be pumped from a steam engine or a heat source is not required to be provided from the outside in the deaerating process.
Compared with the traditional method, the deaerator and the economizer are combined to form a forced circulation system which is independent from a water circulation system of the heating surface of the waste heat boiler; the extraction steam of a waste heat boiler or an external heat source required by the heating and the deoxidization of the deaerator is saved, a steam pipeline is reduced, and the heat loss and the pressure loss of the system are reduced; the feed water temperature of the economizer is improved, and the low-temperature corrosion of the economizer is prevented.
Several alternatives are provided below, but not as an additional limitation to the above general solution, but merely as a further addition or preference, each alternative being combinable individually for the above general solution or among several alternatives without technical or logical contradictions.
Optionally, the economizer is arranged in a flue with the flue gas temperature of 500-200 ℃. For example, a solid waste feeding device, a solid waste incinerator, a waste heat boiler, a boiler tail flue, a denitration device, a bag-type dust remover deacidification device and the like can be selected, and the flue gas temperature in the flue is further preferably within 300-200 ℃.
Optionally, the steam drum further comprises a water feeding pump which is connected with the deoxygenated water outlet of the deoxygenator and the water inlet of the steam drum.
The application still provides a exhaust-heat boiler water supply system who contains forced circulation heating deaerating plant, includes:
the waste heat boiler comprises a boiler body and a steam drum;
the deaerator comprises a softened water inlet, a deaerated water outlet, a circulating water return port and a steam outlet, and the deaerated water outlet is connected to the water inlet of the steam drum; and
economizer and circulating water pump, the economizer is located in the flue of solid useless burning furnace, circulating water pump's water inlet is connected the circulating water delivery port, circulating water pump's delivery port is connected the water inlet of economizer, the delivery port of economizer is connected the circulating water return water mouth, economizer and circulating water pump are used for carrying out continuous forced circulation heating through the part demineralized water that extracts in the oxygen-eliminating device, realize the whole boiling deoxidization of feedwater in the oxygen-eliminating device.
In the water supply system of this application, boiler feed water is overflowed after boiler feed water temperature reaches saturation temperature through oxygen-eliminating device, circulating water pump, economizer circulation system forced circulation aquatic dissolved oxygen, outside the oxygen-eliminating device of pipeline discharge, reaches the purpose of deoxidization, under the general condition, need not external steam heating vapour source again. The boiler feed water after deoxygenation is pumped into a steam drum through a feed pump, and enters the heating surface of the boiler and the other part to start steam circulation.
Optionally, the deaerator is arranged on the solid waste incinerator or the waste heat boiler and is located at a height above 12 m. This application is placed the oxygen-eliminating device on the 12 meters eminence steelframe of burning furnace or exhaust-heat boiler of solid waste incineration system, forms the heating deoxidization system in the new solid waste incineration system, including deoxidization forced circulation water pump, economizer, oxygen-eliminating device, feed pump, steam pocket. Before boiler feed water enters a steam drum, the boiler feed water enters a coal economizer under the drive of a deoxidizing forced circulation water pump to absorb heat of flue gas and heat to supersaturation, water with saturated temperature returns to the deaerator to be decompressed and boiled, dissolved oxygen in the water escapes, and the purpose of heating and deoxidizing is achieved outside the deaerator which is discharged through a pipeline.
Optionally, the device further comprises a softened water tank and a deaerating water pump, wherein the deaerating water pump is connected with the softened water tank and a softened water inlet of the deaerator.
Optionally, the steam-separating device further comprises a steam-separating cylinder connected with the steam outlet of the steam drum. The steam of the steam distributing cylinder is directly delivered out without being pumped into a deaerator.
Optionally, the steam drum further comprises a water feeding pump which is connected with the deoxygenated water outlet of the deoxygenator and the water inlet of the steam drum.
The deoxidizing water pump, the circulating water pump and the water feeding pump are conventional equipment in the existing equipment. Wherein the water feeding pump and the circulating water pump are high-temperature water pumps, and the deoxidizing water pump is a normal-temperature water pump.
The heating and oxygen removing method for the waste heat boiler of the non-power generation solid waste incineration system comprises the following steps:
feeding softened water serving as boiler feed water into a deaerator;
the circulating water pump forcibly circulates part of softened water in the deaerator to an economizer arranged in the flue;
the economizer heats softened water by using high-temperature flue gas in the flue, the heated saturated temperature water is sent back to the deaerator, and is mixed with the softened water in the deaerator and subjected to reduced pressure boiling to remove oxygen;
feeding the boiler feed water subjected to pressure reduction, boiling and deoxidization by the deaerator into a steam pocket of the waste heat boiler by a feed water pump;
boiler feed water in the steam drum absorbs heat in a heating surface of the waste heat boiler and is evaporated into steam to be delivered.
Optionally, the working pressure in the economizer is 0.6-1 MPa; the inlet temperature of the economizer is 104 ℃, and the outlet temperature is the saturation temperature of the economizer under the working pressure.
Optionally, the inlet temperature in the economizer is 104 ℃, and the outlet temperature is the saturation temperature of the economizer under the working pressure.
Optionally, the circulation ratio of boiler feed water is 2-3.
Optionally, the circulating water pump provides power greater than 0.6 MPa. For example, 0.6 to 1MPa of power can be supplied. The feed water is pushed to carry out forced circulation heating between the economizer and the deaerator.
Optionally, the boiler feed water pump provides power of rated pressure of the waste heat boiler to push the feed water after oxygen removal to enter the steam drum.
Drawings
FIG. 1 is a flow diagram of a boiler feed water process for a conventional feed water heating deoxygenation system;
FIG. 2 is a forced circulation heated oxygen removal device according to the present application.
FIG. 3 is a flow diagram of a boiler feed water process for a forced circulation feedwater heating deoxygenation system of the present application;
the reference numerals shown in the figures are as follows;
1. deoxygenation water pump 2, deoxygenator 3 and circulating water pump
4. An economizer 5, a water feeding pump 6 and a steam drum
7. Boiler heating surface 8, flue
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, 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 application.
For a better description and illustration of embodiments of the application, reference may be made to one or more of the drawings, but additional details or examples for describing the drawings should not be construed as limiting the scope of any of the inventive concepts of the present application, the presently described embodiments, or the preferred versions.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
As shown in fig. 2, the forced circulation heating deaerating device of the waste heat boiler comprises a deaerator 2, a circulating water pump 3 and an economizer 4, wherein the deaerator, the circulating water pump and the economizer form an independent circulating system.
The deaerator can adopt the conventional deaerator among the prior art, cancels conventional steam heating mode, adds the circulating water and imports and exports on original water inlet and delivery port basis, and the deaerator after the transformation includes demineralized water import, deoxidization water outlet, circulating water delivery port, circulating water return water mouth and steam extraction mouth, and deoxidization water outlet is connected to the water inlet of steam pocket 6. The economizer can adopt the conventionality among the prior art to be the economizer, set up in flue 8, circulating water pump 3 locates between oxygen-eliminating device 2 and economizer 4, circulating water pump connects the circulating water delivery port of oxygen-eliminating device and the water inlet of economizer, wherein circulating water pump's water inlet is connected the circulating water delivery port of oxygen-eliminating device, circulating water pump's delivery port is connected the circulating water inlet of oxygen-eliminating device, the circulating water return mouth of oxygen-eliminating device is connected to the delivery port of economizer, make boiler feed water force circulation between oxygen-eliminating device and economizer through the effect of circulating water pump.
Boiler feed water in the deaerator is pumped into an economizer positioned in a flue at the tail part of the boiler through a circulating water pump, the economizer conducts heat to the boiler feed water through heat exchange with flue gas, the boiler feed water temperature and pressure are increased, the working pressure in the economizer is higher than that in the deaerator, the working pressure in the deaerator is 0.018MPa, and saturated temperature water returned to the deaerator by the economizer is subjected to pressure reduction, boiling and deaerating after the pressure is reduced to 0.018 MPa. For example, the working pressure in the economizer is 0.6-1 MPa, the working pressure in the deaerator is 0.018MPa, the saturated temperature water returned by the economizer is mixed with softened water in the deaerator, the softened water in the deaerator can be boiled after the saturated temperature water returned is reduced to 0.018MPa, dissolved oxygen in the water escapes from the deaerator during reduced pressure boiling, and the water is discharged out of the deaerator through a pipeline, so that the purpose of deaerating is achieved. And pumping the deaerated boiler feed water into a steam drum through a feed pump, and then entering a heating surface of the boiler to start steam circulation.
The economizer is arranged in a flue, flue gas in the flue is used for circularly heating boiler feed water, the flue can be any flue meeting the requirement that the flue gas temperature is within 500-200 ℃, in one embodiment, the flue is selected from a tail flue of a boiler, and the flue gas temperature is within 300-200 ℃ in the flue, so that the requirement for heating circulating water is met. The coal economizer is installed in the flue in a conventional horizontal or vertical mode.
The boiler feed water can adopt demineralized water, in an embodiment, send into the oxygen-eliminating device through deoxidization water pump 1, the oxygen-eliminating device deoxidization water is sent into in the steam pocket 6 through feed pump 5.
The water feeding pump, the deoxygenation water pump and the deoxygenation forced circulation water pump are conventional water pumps except for different names according to different application scenes. Wherein the water feeding pump and the circulating water pump are high-temperature water pumps, and the deoxidizing water pump is a normal-temperature water pump.
As shown in fig. 2 and fig. 3, the waste heat boiler feed water system and the process flow including the forced circulation feed water heating oxygen removal device include a waste heat boiler and the forced oxygen removal circulation system as described in example 1.
The waste heat boiler comprises a boiler body (the boiler body comprises a heating surface) and a steam drum 6. The forced circulation feedwater heating deaerating plant comprises a deaerator 2, a circulating water pump 3 and an economizer 4, wherein the deaerator, the circulating water pump and the economizer form an independent circulating system.
The deaerator can adopt the conventional deaerator among the prior art, cancels conventional steam heating mode, adds the circulating water and imports and exports on original water inlet and delivery port basis, and the deaerator after the transformation includes demineralized water import, deoxidization water outlet, circulating water delivery port, circulating water return water mouth and steam extraction mouth, and deoxidization water outlet is connected to the water inlet of steam pocket 6. The economizer can adopt the conventional economizer among the prior art, set up in flue 8, circulating water pump 3 locates between oxygen-eliminating device 2 and economizer 4, circulating water pump connects the circulating water delivery port of oxygen-eliminating device and the water inlet of economizer, wherein circulating water pump's water inlet is connected the circulating water delivery port of oxygen-eliminating device, circulating water pump's delivery port is connected the circulating water inlet of oxygen-eliminating device, the circulating water return mouth of oxygen-eliminating device is connected to the delivery port of economizer, make boiler feed water force circulation between oxygen-eliminating device and economizer through the effect of circulating water pump.
Part of boiler feed water in the deaerator is pumped into an economizer positioned in a flue at the tail part of the boiler through a circulating water pump, the economizer conducts heat to the boiler feed water through heat exchange with flue gas, the temperature and the pressure of the boiler feed water are increased, finally the boiler feed water reaches the saturation temperature after forced circulation through the circulating water pump and the economizer, the boiler feed water in the deaerator is boiled after the saturated temperature water returning to the deaerator is reduced in pressure, dissolved oxygen in the water escapes after boiling, and the deaerator is discharged through a pipeline to achieve the aim of deaerating. And pumping the deaerated boiler feed water into a steam drum through a feed pump, and then entering a heating surface of the boiler to start steam circulation.
In the application, a deaerator and an economizer are combined to form a forced circulation system which is independent from a water circulation system of a heating surface of a waste heat boiler; the extraction steam of a waste heat boiler or an external heat source required by the heating and the deoxidization of the deaerator is saved, a steam pipeline is reduced, and the heat loss and the pressure loss of the system are reduced; the feed water temperature of the economizer is improved, and the low-temperature corrosion of the economizer is prevented.
The economizer is arranged in a flue, flue gas in the flue is used for circularly heating boiler feed water, the flue can be any flue meeting the requirement that the flue gas temperature is within 500-200 ℃, in one embodiment, the flue is selected from a tail flue of a boiler, and the flue gas temperature is within 300-200 ℃ in the flue, so that the requirement for heating circulating water is met. The coal economizer is installed in the flue conventionally.
Boiler feed water can adopt demineralized water, and in an embodiment, still including demineralized water tank and deoxidization water pump 1, the deoxidization water pump connect demineralized water tank with the demineralized water inlet of oxygen-eliminating device sends into oxygen-eliminating device 2 through deoxidization water pump 1 in, the oxygen-eliminating device deoxidization water sends into in the steam pocket 6 through feed pump 5.
The steam outlet of the steam drum is connected with the steam outlet of the steam drum. The steam of the steam distributing cylinder is directly delivered out without being pumped into a deaerator.
The heating and oxygen removing method for the waste heat boiler of the non-power generation solid waste incineration system comprises the following steps:
delivering softened water into a deaerator;
the circulating water pump forcibly circulates part of softened water in the deaerator to an economizer arranged in the flue;
the economizer heats softened water by using high-temperature flue gas in the flue, the heated saturated temperature water is sent back to the deaerator, and is mixed with the softened water in the deaerator and subjected to reduced pressure boiling to remove oxygen;
the waste heat is sent into a steam pocket of a waste heat boiler through a feed pump after being subjected to pressure reduction, boiling and deoxidization by a deaerator;
boiler feed water in the steam drum absorbs heat in a heating surface of the waste heat boiler and is evaporated into steam to be delivered.
One of the embodiments is as follows, accomplished with the forced circulation oxygen removal system of the present application:
boiler feed water (from the demineralized water tank) is squeezed into oxygen-eliminating device 2 through deoxidization water pump 1, wherein part boiler feed water is squeezed into economizer 4 that is located boiler afterbody flue through circulating water pump 3 again, economizer 4 conducts the heat to boiler feed water through exchanging heat with the flue gas, make boiler feed water temperature, pressure risees, saturated temperature water returns the oxygen-eliminating device again, mix with the demineralized water in the oxygen-eliminating device, step-down to the operating pressure of oxygen-eliminating device, because the release of pressure leads to the boiling of boiler feed water in the oxygen-eliminating device, the dissolved oxygen of aquatic escapes, discharge oxygen-eliminating device 2 outside through the pipeline, reach the mesh of deoxidization. 10-20% of water in the deaerator enters the coal economizer for internal circulation. The deaerated boiler feed water is pumped into a steam drum 6 through a feed water pump 5, and steam circulation is started on a heating surface 7 entering the furnace body and the like. The steam of the steam pocket is sent out after passing through the steam distributing cylinder.
In one embodiment, the circulating water pump provides 0.6 to 1MPa of power. The feed water is pushed to carry out forced circulation heating between the economizer and the deaerator. The working pressure in the economizer is 0.6-1 MPa; the inlet temperature was 104 ℃ and the outlet water temperature reached saturation temperature.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (6)
1. Exhaust-heat boiler's forced circulation heating deaerating plant, its characterized in that includes:
the deaerator comprises a softened water inlet, a deaerated water outlet, a circulating water return port and a steam outlet, wherein the deaerated water outlet is connected to a water inlet of a steam drum of the waste heat boiler;
the coal economizer is arranged in the flue and used for circularly heating part of boiler feed water in the deaerator; and
and the water inlet and the water outlet of the circulating water pump are respectively connected with the circulating water outlet of the deaerator and the water inlet of the economizer, and the circulating water pump is used for forcibly circulating part of boiler feed water in the deaerator to the economizer to heat the economizer and returning saturated temperature water heated in the economizer to the deaerator.
2. The forced circulation heating oxygen removal device of claim 1, wherein the economizer is arranged in a flue with the flue gas temperature of 500-200 ℃.
3. The forced circulation heating deaerating device of claim 1, further comprising a feed water pump connecting a deaerated water outlet of the deaerator and a water inlet of the steam drum.
4. Contain forced circulation heating deaerator's exhaust-heat boiler water supply system, its characterized in that includes:
the waste heat boiler comprises a boiler body and a steam drum;
the deaerator comprises a softened water inlet, a deaerated water outlet, a circulating water return port and a steam outlet, and the deaerated water outlet is connected to the water inlet of the steam drum; and
economizer and circulating water pump, the economizer is located in the flue of solid useless burning furnace, circulating water pump's water inlet is connected the circulating water delivery port, circulating water pump's delivery port is connected the water inlet of economizer, the delivery port of economizer is connected the circulating water return water mouth, economizer and circulating water pump are used for carrying out continuous forced circulation heating through the part demineralized water that extracts in the oxygen-eliminating device, realize the whole boiling deoxidization of feedwater in the oxygen-eliminating device.
5. The waste heat boiler water supply system of claim 4, wherein the deaerator is arranged on the solid waste incinerator or the waste heat boiler and is located at a height of 12 meters or more.
6. The waste heat boiler water feeding system of claim 4, further comprising a softened water tank and a deaerating water pump, wherein the deaerating water pump is connected with the softened water tank and the deaerator water inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020359083.4U CN211952726U (en) | 2020-03-19 | 2020-03-19 | Forced circulation heating deaerating plant and exhaust-heat boiler water supply system of exhaust-heat boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020359083.4U CN211952726U (en) | 2020-03-19 | 2020-03-19 | Forced circulation heating deaerating plant and exhaust-heat boiler water supply system of exhaust-heat boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211952726U true CN211952726U (en) | 2020-11-17 |
Family
ID=73180487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020359083.4U Active CN211952726U (en) | 2020-03-19 | 2020-03-19 | Forced circulation heating deaerating plant and exhaust-heat boiler water supply system of exhaust-heat boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211952726U (en) |
-
2020
- 2020-03-19 CN CN202020359083.4U patent/CN211952726U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113048456B (en) | Energy storage power generation and heat supply system and method for deep peak shaving | |
| CN101392992A (en) | Silicon smelting electric furnace waste heat power generation process flow and configuration | |
| CN113982891B (en) | Compressed air composite energy storage system for old thermal power plant boiler transformation and operation method thereof | |
| CN211900715U (en) | High-parameter garbage generator set | |
| CN111271703A (en) | Heating and oxygen removing device and method for waste heat boiler of non-power generation solid waste incineration system | |
| CN107990301B (en) | Water supply and oxygen removal system of waste heat boiler | |
| CN211952726U (en) | Forced circulation heating deaerating plant and exhaust-heat boiler water supply system of exhaust-heat boiler | |
| CN111457353A (en) | Boiler feed water heating and oxygen removing system and method coupled to boiler workshop of household garbage incineration power plant | |
| CN201129716Y (en) | Steam discharging and recovering device of deaerator | |
| CN111397248A (en) | Green heat pump refrigerating and heating device applied to working of steam turbine | |
| CN205592967U (en) | A waste heat power generation system for dangerous waste disposal trade of industry | |
| CN107489468A (en) | A kind of low-concentration gas power generation system based on intermittent combustion | |
| CN207907205U (en) | A kind of large size combined cycle unit waste heat boiler | |
| CN102506413B (en) | Desalted water high-pressure oxygen removing method capable of utilizing low-temperature heat of catalytic cracking device | |
| CN111271704A (en) | Forced circulation heating and deoxidizing device and method for double-snake-shaped heat exchange tubes for waste heat boiler water supply | |
| CN115288954A (en) | Light coal complementary steam turbine system and power generation system with energy gradient utilization function | |
| CN211694839U (en) | Waste incineration power generation system with biogas superheater | |
| CN212298939U (en) | Hazardous waste incineration system and forced circulation heating and deoxidizing device with double-snake-shaped heat exchange tubes for waste heat boiler water supply | |
| CN212005640U (en) | Water supply deoxidization system | |
| CN201589537U (en) | Device utilizing deaerating feed to heat condensed water in cement kiln afterheat generation | |
| CN110822437B (en) | Waste incineration power generation system and method | |
| CN212929969U (en) | Boiler feed water heating and oxygen removing system coupled to boiler workshop | |
| CN214035884U (en) | Gas turbine exhaust waste heat utilization system | |
| CN219014291U (en) | Wet water cascade utilization system for boiler of supercritical and ultra-supercritical coal-fired unit | |
| CN221166468U (en) | Dry quenching waste heat recovery system and dry quenching system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |