CN212691739U - Energy-saving water-coal slurry boiler - Google Patents
Energy-saving water-coal slurry boiler Download PDFInfo
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- CN212691739U CN212691739U CN202021244784.XU CN202021244784U CN212691739U CN 212691739 U CN212691739 U CN 212691739U CN 202021244784 U CN202021244784 U CN 202021244784U CN 212691739 U CN212691739 U CN 212691739U
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Abstract
The utility model provides an energy-conserving water coal slurry boiler, including supplying thick liquid system, gas supply system, water supply system and combustion system, supply thick liquid system including the thick liquid storage tank, the defeated thick liquid pump, a filter, the water coal slurry rifle, defeated thick liquid pipeline and slurry return pipe way, the export of thick liquid storage tank passes through the defeated thick liquid pipeline and links to each other with the entry of defeated thick liquid pump, the export of defeated thick liquid pump links to each other through the entry of defeated thick liquid pipeline with the filter, the export of filter links to each other through the first entry of first ball valve with three way valve, and the export of filter still links to each other with the thick liquid storage tank through slurry return pipe way, gas supply system includes air compressor, air pressure regulator, rotor flow meter and air supply line, water supply system includes the cistern, water pump and supply channel. According to the utility model discloses an energy-conserving coal slurry boiler reasonable in design to reach fine energy-conserving effect, and can avoid it to damage etc..
Description
Technical Field
The utility model relates to a coal slurry field especially relates to an energy-conserving coal slurry boiler.
Background
The coal water slurry is a novel high-efficiency clean coal-based fuel, is a new member of a fuel family, screens impurities such as insufficient combustion components and substances generating pollution in coal layer by layer through a plurality of rigorous procedures, only retains the carbon essence to become the essence of the coal water slurry, and is called as a liquid coal product. The coal water slurry can be directly used for burning various boilers and kilns, changes the traditional burning mode of coal and shows huge environment-friendly and energy-saving advantages.
However, the existing water-coal slurry boiler has the defects of low combustion efficiency, high pollutant emission, complex post-treatment such as desulfurization and denitrification and the like, and has larger operation risk and the like when abnormality occurs.
SUMMERY OF THE UTILITY MODEL
In order to solve at least one of the technical problems, the utility model provides an energy-conserving water coal slurry boiler.
According to one aspect of the present disclosure, an energy-saving water-coal-slurry boiler comprises a slurry supply system, a gas supply system, a water supply system and a combustion system,
the slurry supply system comprises a slurry storage tank, a slurry conveying pump, a filter, a water-coal slurry gun, a slurry conveying pipeline and a slurry return pipeline, wherein the outlet of the slurry storage tank is connected with the inlet of the slurry conveying pump through the slurry conveying pipeline, the outlet of the slurry conveying pump is connected with the inlet of the filter through the slurry conveying pipeline, the outlet of the filter is connected with the first inlet of the three-way valve through the first ball valve, and the outlet of the filter is also connected with the slurry storage tank through the slurry return pipeline,
the air supply system comprises an air compressor, an air pressure regulator, a rotor flow meter and an air supply pipeline, the air compressor is connected with an inlet of the air pressure regulator through the air supply pipeline, the air pressure regulator is connected with a first inlet of the water-coal-slurry gun through the rotor flow meter,
the water supply system comprises a water storage tank, a water pump and a water supply pipeline, the water storage tank is connected with an inlet of the water pump through the water supply pipeline, and an outlet of the water pump is connected with a second inlet of the three-way valve through a third ball valve; the outlet of the three-way valve is connected with the second inlet of the coal water slurry gun,
the combustion system comprises a combustor and a hearth, an outlet of the water-coal-slurry gun is connected with the combustor to spray a mixture of water-coal-slurry, water and air into the combustor, and an outlet of the combustor is connected with the hearth.
According to at least one embodiment of the present disclosure, a pressure monitoring device is provided on the slurry transporting pipeline and the air supplying pipeline.
According to at least one embodiment of the present disclosure, pressure monitoring devices are provided on the slurry feed lines at the inlet and outlet of the filter.
According to at least one embodiment of the present disclosure, a pressure monitoring device is provided on the air supply line at the outlet of the rotameter.
According to at least one embodiment of the present disclosure, the water-coal-slurry boiler further comprises a detection device for detecting boiler combustion anomalies.
According to at least one embodiment of the present disclosure, the detection device is a photoresistor, an ion bar, and/or an ultraviolet detection device.
According to at least one embodiment of the present disclosure, the burner of the combustion system is conical in shape, wherein the diameter of the burner adjacent to the water coal slurry gun is smaller than the diameter of the burner remote from the water coal slurry gun.
According to at least one embodiment of the present disclosure, the air pressure regulator then regulates the pressure of the compressed air according to the desired pressure of the water-coal-slurry gun.
According to at least one embodiment of the present disclosure, a second ball valve is disposed on the slurry return pipeline.
According to at least one embodiment of the present disclosure, the slurry storage tank may be provided with a stirring device to stir the coal-water slurry stored in the slurry storage tank.
According to the utility model discloses a coal slurry boiler reasonable in design to reach fine energy-conserving effect, and can avoid its damage etc..
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the principles of the invention.
Fig. 1 shows a schematic view of a water-coal-slurry boiler according to an embodiment of the present invention.
Fig. 2 shows a schematic view of a water-coal slurry boiler according to another embodiment of the present invention.
Description of reference numerals:
101 air compressor
102 air pressure regulator
103 rotor flow meter
110 slurry storage tank
120 slurry conveying pump
130 filter
140 water coal slurry gun
150 slurry return pipeline
151 pressure monitoring device
152 is provided with a pressure monitoring device
160 valve
171 first ball valve
172 second ball valve
180 burner
190 hearth
201 air compressor
202 air pressure regulator
203 rotor flow meter
204 water reservoir
205 water pump
210 pulp storage tank
220 slurry conveying pump
230 filter
240 water coal slurry gun
250 slurry return pipeline
251 pressure monitoring device
252 pressure monitoring device
260 valve
271 first ball valve
272 second ball valve
273 third ball valve
280 burner
290 hearth.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the invention. It should be noted that, for convenience of description, only the parts related to the present invention are shown in the drawings.
In the present invention, the embodiments and the features of the embodiments may be combined with each other without conflict. The technical solution of the present invention will be described in detail with reference to the accompanying drawings and embodiments.
Unless otherwise indicated, the illustrated exemplary embodiments/examples will be understood as providing exemplary features of various details of some ways in which the technical concepts of the present invention may be practiced. Thus, unless otherwise indicated, the features of the various embodiments/examples may be additionally combined, separated, interchanged, and/or rearranged without departing from the technical concept of the present invention.
The use of cross-hatching and/or shading in the drawings is generally used to clarify the boundaries between adjacent components. As such, unless otherwise noted, the presence or absence of cross-hatching or shading does not convey or indicate any preference or requirement for a particular material, material property, size, proportion, commonality between the illustrated components and/or any other characteristic, attribute, property, etc., of a component. Further, in the drawings, the size and relative sizes of components may be exaggerated for clarity and/or descriptive purposes. While example embodiments may be practiced differently, the specific process sequence may be performed in a different order than that described. For example, two processes described consecutively may be performed substantially simultaneously or in reverse order to that described. In addition, like reference numerals denote like parts.
When an element is referred to as being "on" or "on," "connected to" or "coupled to" another element, it can be directly on, connected or coupled to the other element or intervening elements may be present. However, when an element is referred to as being "directly on," "directly connected to" or "directly coupled to" another element, there are no intervening elements present. For purposes of this disclosure, the term "connected" may refer to physically, electrically, etc., and may or may not have intermediate components.
For descriptive purposes, the invention may use spatially relative terms such as "below … …," below … …, "" below … …, "" below, "" above … …, "" above, "" … …, "" higher, "and" lateral (e.g., as in "a sidewall") to describe one component's relationship to another (other) component as illustrated in the figures. Spatially relative terms are intended to encompass different orientations of the device in use, operation, and/or manufacture in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below … …" can encompass both an orientation of "above" and "below". Further, the devices may be otherwise positioned (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
The terminology used herein is for the purpose of describing particular embodiments and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Furthermore, when the terms "comprises" and/or "comprising" and variations thereof are used in this specification, the presence of stated features, integers, steps, operations, elements, components and/or groups thereof are stated but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and/or groups thereof. It is also noted that, as used herein, the terms "substantially," "about," and other similar terms are used as approximate terms and not as degree terms, and as such, are used to interpret inherent deviations in measured values, calculated values, and/or provided values that would be recognized by one of ordinary skill in the art.
Fig. 1 shows a schematic view of a water-coal-slurry boiler according to an embodiment of the present invention.
As shown in fig. 1, a coal water slurry boiler according to the present invention may include a slurry supply system, a gas supply system, and a combustion system.
The slurry supply system may include a slurry storage tank 110, a slurry pump 120, a filter 130, a coal water slurry gun 140, and a slurry conveying and returning pipeline 150.
The slurry tank 110 provides a storage space for the coal-water slurry, and it may be provided with a stirring device such as a blade stirrer or the like. The slurry storage tank 110 provides the stored coal-water slurry to the slurry pump 120 through the slurry conveying pipeline in the slurry conveying and returning pipeline 150.
The slurry pump 120 may pump the received slurry to provide the slurry to the filter 130, i.e., the outlet of the slurry pump 120 is connected to the inlet of the filter 130.
The filter 130 provides a filtering function with respect to the coal water slurry, and provides the filtered coal water slurry to the first inlet of the three-way valve 160 through the slurry conveying line of the slurry conveying and returning line 150.
A first ball valve 171 may be disposed on the slurry pipe in the slurry pipe and return pipe 150 for supplying the coal water slurry to the valve 160, and the supply of the coal water slurry may be controlled by the first ball valve 171.
The filtered coal-water slurry provided by the filter 130 can also be provided to the slurry storage tank 110 through the slurry return line in the slurry feeding and returning line 150 for reuse. A second ball valve 172 may also be disposed in the slurry return pipeline, so that on-off control of the slurry return pipeline is realized through the second ball valve 172.
The valve 160 is used to supply the coal water slurry to the coal water slurry gun 140, and the coal water slurry is pressurized by the coal water slurry gun 140 and injected into the burner 180.
The shape of the burner 180 of the combustion system may be conical, wherein the diameter of the shape near the water coal slurry gun 140 is smaller than the diameter far from the water coal slurry gun 140.
The air supply system includes an air compressor 101, an air pressure regulator 102, and a rotameter 103.
The air compressor 101 is used to form compressed air and supply the compressed air to the air regulator 102 through a pipeline.
The air pressure regulator 102 adjusts the pressure of the compressed air according to the desired pressure of the coal water slurry gun 140, wherein the adjustment can be performed manually or automatically, for example, by inputting control parameters during the adjustment in an automatic manner.
The rotameter 103 is used to measure the flow rate of the supplied compressed air, and its measured value may be supplied to a display device or the like (not shown) through a feedback system.
The compressed air flowing through the rotameter 103 is supplied to the water coal slurry gun 140, and the water coal slurry gun 140 mixes the water coal slurry and the compressed air to inject it into the burner 180. The outlet of the burner 180 is connected to a furnace 190.
In addition, in order to monitor the system, a pressure monitoring device 151 such as a pressure gauge may be provided on the slurry conveying line in the slurry conveying and returning line 150. Thereby realizing the pressure monitoring of the slurry conveying pipeline. Wherein the pressure monitoring device 151 may be disposed at an inlet position and/or an outlet position of the filter 130, preferably, two pressure monitoring devices 151 are disposed at the inlet position and the outlet position of the filter 130, respectively.
Optionally, a pressure monitoring device 152 may also be provided at the outlet position of the rotameter 103.
In order to obtain the abnormal condition of the boiler in time, a detection device for detecting the abnormal combustion of the boiler may be disposed at the burner 180 or the furnace 190, wherein the detection device may be a photo resistor, an ion bar or an ultraviolet detection device.
If the boiler is not ignited successfully after being started, the boiler stops working, audible and visual alarm is carried out, and ignition failure is displayed.
In the normal operation process of the boiler, if the boiler is suddenly flamed out, the boiler is stopped and audible and visual alarm is carried out, and meanwhile, after manual reset is adopted, the boiler is comprehensively checked and cleaned, and the boiler is confirmed to be started and operated without errors.
According to the utility model discloses a coal slurry boiler reasonable in design to reach fine energy-conserving effect, and can avoid its damage etc..
Fig. 2 shows a schematic view of a water-coal-slurry boiler according to an embodiment of the present invention.
As shown in fig. 2, the coal water slurry boiler according to the present invention may include a slurry supply system, a gas supply system, a water supply system, and a combustion system.
The slurry supply system may include a slurry storage tank 210, a slurry pump 220, a filter 230, a coal water slurry gun 240, and a slurry conveying and returning pipeline 250.
The slurry tank 210 provides a storage space for the coal water slurry, and it may be provided with a stirring device such as a blade stirrer or the like. The slurry storage tank 210 provides the stored coal-water slurry to the slurry pump 220 through the slurry conveying pipeline in the slurry conveying and returning pipeline 250.
The slurry pump 220 may pump the received slurry to provide the slurry to the filter 230, that is, the outlet of the slurry pump 220 is connected to the inlet of the filter 230.
The filter 230 provides a filtering function with respect to the coal water slurry, and provides the filtered coal water slurry to the first inlet of the three-way valve 260 through the slurry conveying line of the slurry conveying and returning line 250.
Wherein, a first ball valve 271 can be arranged on the slurry conveying pipeline in the slurry conveying and returning pipeline 250 for supplying the coal water slurry to the valve 260, and the supply of the coal water slurry is controlled by the first ball valve 271.
The filtered coal water slurry provided by the filter 230 can be provided to the slurry storage tank 210 through the slurry return line of the slurry feeding and returning line 250 for reuse. A second ball valve 272 can also be arranged in the slurry return pipeline, so that the on-off control of the slurry return pipeline is realized through the second ball valve 272.
The valve 260 is used to provide the coal-water slurry to the coal-water slurry gun 240, and the coal-water slurry is pressurized by the coal-water slurry gun 240 and injected into the burner 280.
The shape of the burner 280 of the combustion system may be conical, wherein the diameter of the shape near the water coal slurry gun 240 is smaller than the diameter of the shape away from the water coal slurry gun 240.
The air supply system includes an air compressor 201, an air pressure regulator 202, and a rotameter 203.
The air compressor 201 is used to form compressed air and supply the compressed air to the air regulator 202 through a pipeline.
The air pressure regulator 202 adjusts the pressure of the compressed air according to the desired pressure of the coal water slurry gun 240, wherein the adjustment can be performed manually or automatically, for example, by inputting control parameters during the adjustment in an automatic manner.
The rotameter 203 is used to measure the flow rate of the supplied compressed air, and the measured value thereof may be supplied to a display device or the like (not shown) through a feedback system.
The compressed air flowing through the rotameter 203 will be supplied to the water coal slurry gun 240, and the water coal slurry gun 240 mixes the water coal slurry and the compressed air to inject it into the burner 280. The outlet of the burner 280 is connected to the furnace 290.
In addition, in order to monitor the system, a pressure monitoring device 251 such as a pressure gauge may be disposed on the slurry conveying line in the slurry conveying and returning line 250. Thereby realizing the pressure monitoring of the slurry conveying pipeline. Wherein the pressure monitoring devices 251 may be provided at an inlet position and/or an outlet position of the filter 230, preferably, two pressure monitoring devices 251 are provided at the inlet position and the outlet position of the filter 230, respectively.
Optionally, a pressure monitoring device 252 may also be provided at the outlet position of the rotameter 203.
The water supply system according to this embodiment may include a water reservoir 204 and a water pump 205. The water reservoir 204 is connected to the inlet of the water pump 205 via a water supply line, and the water pump 205 is connected to the three-way valve 260 via a third ball valve 273. The outlet of the three-way valve 260 is connected to an inlet of the water-coal-slurry gun 240, and the outlet of the water-coal-slurry gun 240 is connected to the burner 280 to inject the mixture of water-coal-slurry, water and air into the burner 280, and the outlet of the burner 280 is connected to the furnace 290.
In order to obtain the abnormal condition of the boiler in time, a detection device for detecting the abnormal combustion of the boiler may be provided at the burner 280 or the furnace 290, wherein the detection device may be a photo resistor, an ion bar or an ultraviolet detection device.
If the boiler is not ignited successfully after being started, the boiler stops working, audible and visual alarm is carried out, and ignition failure is displayed.
In the normal operation process of the boiler, if the boiler is suddenly flamed out, the boiler is stopped and audible and visual alarm is carried out, and meanwhile, after manual reset is adopted, the boiler is comprehensively checked and cleaned, and the boiler is confirmed to be started and operated without errors.
Through the utility model discloses a design can effectively realize the control to coal slurry, water and air, ensures that the coal slurry fully burns, reduces pollutant discharge.
When the boiler is started for operation, firstly starting each auxiliary machine, and starting an induced draft fan, an air compressor, a stirrer, a screw pump, a spray pump, a filter and a combustor; then starting the boiler, feeding water to normal water level by a water feeding pump, purging a hearth by an induced draft fan, starting an oil pump, igniting, preheating the hearth by adopting small fire combustion, starting large fire combustion, simultaneously carrying out slurry spraying operation, increasing slurry amount, stopping oil injection, and normally combusting the coal water slurry. When the boiler is closed, the slurry inlet valve is closed, then the coal water slurry spray gun is cleaned, compressed air is used for purging, then water is used for flushing, the furnace chamber is purged by the air blower, and finally the air blower is stopped, so that the boiler shutdown operation is completed.
In the description herein, reference to the description of the terms "one embodiment/mode," "some embodiments/modes," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/mode or example is included in at least one embodiment/mode or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to be the same embodiment/mode or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/aspects or examples and features of the various embodiments/aspects or examples described in this specification can be combined and combined by one skilled in the art without conflicting therewith.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
It will be understood by those skilled in the art that the foregoing embodiments are provided for clarity of description only, and are not intended to limit the scope of the invention. Other variations or modifications to the above described embodiments will be apparent to those skilled in the art and are within the scope of the invention.
Claims (10)
1. An energy-saving water-coal slurry boiler is characterized by comprising a slurry supply system, a gas supply system, a water supply system and a combustion system,
the slurry supply system comprises a slurry storage tank, a slurry conveying pump, a filter, a water-coal slurry gun, a slurry conveying pipeline and a slurry return pipeline, wherein the outlet of the slurry storage tank is connected with the inlet of the slurry conveying pump through the slurry conveying pipeline, the outlet of the slurry conveying pump is connected with the inlet of the filter through the slurry conveying pipeline, the outlet of the filter is connected with the first inlet of the three-way valve through the first ball valve, and the outlet of the filter is also connected with the slurry storage tank through the slurry return pipeline,
the air supply system comprises an air compressor, an air pressure regulator, a rotor flow meter and an air supply pipeline, the air compressor is connected with an inlet of the air pressure regulator through the air supply pipeline, the air pressure regulator is connected with a first inlet of the water-coal-slurry gun through the rotor flow meter,
the water supply system comprises a water storage tank, a water pump and a water supply pipeline, the water storage tank is connected with an inlet of the water pump through the water supply pipeline, and an outlet of the water pump is connected with a second inlet of the three-way valve through a third ball valve; the outlet of the three-way valve is connected with the second inlet of the coal water slurry gun,
the combustion system comprises a combustor and a hearth, an outlet of the water-coal-slurry gun is connected with the combustor to spray a mixture of water-coal-slurry, water and air into the combustor, and an outlet of the combustor is connected with the hearth.
2. The energy-saving water-coal-slurry boiler according to claim 1, wherein pressure monitoring devices are provided on the slurry conveying pipeline and the gas supply pipeline.
3. An energy saving water coal slurry boiler as claimed in claim 1 or 2 wherein pressure monitoring means are provided on the slurry delivery line at the inlet and outlet of said filter.
4. An energy saving water coal slurry boiler as claimed in claim 1 or 2 wherein a pressure monitoring device is provided in the gas supply line at the outlet of the rotameter.
5. An energy saving water coal slurry boiler as claimed in claim 1 or 2, characterized in that said water coal slurry boiler further comprises detecting means for detecting boiler combustion anomalies.
6. An energy-saving water-coal-slurry boiler as claimed in claim 5, wherein said detecting means is a photo-resistor, an ion bar and/or an ultraviolet detecting means.
7. The energy-saving water-coal slurry boiler according to claim 1 or 2, wherein the burner of the combustion system is tapered in shape, wherein the diameter of the burner adjacent to the water-coal slurry gun is smaller than the diameter of the burner distant from the water-coal slurry gun.
8. An energy saving water coal slurry boiler as claimed in claim 1 or 2 wherein said air pressure regulator adjusts the pressure of the compressed air according to the required pressure of said water coal slurry gun.
9. An energy-saving water-coal-slurry boiler as claimed in claim 1 or 2, wherein the slurry return pipe is provided with a second ball valve.
10. An energy-saving water-coal-slurry boiler as claimed in claim 1 or 2, wherein the slurry storage tank can be provided with a stirring device to stir the water-coal-slurry stored in the slurry storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021244784.XU CN212691739U (en) | 2020-06-30 | 2020-06-30 | Energy-saving water-coal slurry boiler |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021244784.XU CN212691739U (en) | 2020-06-30 | 2020-06-30 | Energy-saving water-coal slurry boiler |
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| CN212691739U true CN212691739U (en) | 2021-03-12 |
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| CN202021244784.XU Active CN212691739U (en) | 2020-06-30 | 2020-06-30 | Energy-saving water-coal slurry boiler |
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