CN216847352U - System for defoaming and measuring density of gypsum slurry outside limestone-gypsum method desulfurizing tower - Google Patents
System for defoaming and measuring density of gypsum slurry outside limestone-gypsum method desulfurizing tower Download PDFInfo
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- CN216847352U CN216847352U CN202123352296.8U CN202123352296U CN216847352U CN 216847352 U CN216847352 U CN 216847352U CN 202123352296 U CN202123352296 U CN 202123352296U CN 216847352 U CN216847352 U CN 216847352U
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Abstract
The utility model discloses a gypsum thick liquid defoaming and density measurement system outside limestone-gypsum method desulfurizing tower, including the absorption tower of interior gypsum thick liquid of being equipped with, the row's thick liquid mouth of absorption tower has vapour and liquid separator through supplying thick liquid pipe connection, and vapour and liquid separator's top export is connected to the trench through exhaust duct, and vapour and liquid separator's bottom export is connected with the densimeter through arranging thick liquid pipe, and the export of densimeter is passed through pipe connection to the trench. The utility model discloses outer gypsum thick liquid defoaming of lime stone-gypsum method desulfurizing tower and density measurement system utilizes the gravity to subside the bubble that is mingled with in the principle to the gypsum thick liquid in the absorption tower and carries out gas-liquid separation, has eliminated the influence of bubble to among the gypsum thick liquid density measurement, provides more reliable gypsum thick liquid density monitoring parameter for the operation of absorption tower.
Description
Technical Field
The utility model relates to a thermal power factory limestone-gypsum method flue gas desulfurization technical field especially relates to a gypsum thick liquid defoaming and density measurement system.
Background
The limestone-gypsum method (wet method for short) flue gas desulfurization technology is commonly adopted in thermal power plants, an absorption tower is a core device in a wet method desulfurization system, wherein an important parameter for controlling the operation of the absorption tower is the density of gypsum slurry in the absorption tower. In wet desulfurization systems, slurry density is typically measured using a mass flow meter, which measures the density of the medium indirectly by measuring the resonant frequency of the medium (i.e., a densitometer). Due to the requirement of a wet desulphurization process, a large amount of air can be blown into the gypsum slurry in the absorption tower, so that air is mixed in the gypsum slurry, and when the air mixed in the gypsum slurry reaches a certain amount, the fluctuation of a measurement value of a densimeter is too large, so that the normal operation of the absorption tower cannot be controlled through the density value of the gypsum slurry. In order to provide stable and accurate density values for the operation of the absorber, it is important to eliminate the influence of the air bubbles in the gypsum slurry on the density measurement.
In the prior art, although numerous defoaming methods are provided, the system configuration is cumbersome. The slurry defoaming and density measuring system which is simple in structure and convenient to use and can provide stable and accurate density values is developed, and the system is particularly significant in the implementation of wet desulphurization engineering, particularly ultra-low emission wet desulphurization engineering.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a gypsum thick liquid defoaming and density measurement system outside limestone-gypsum method desulfurizing tower, its simple structure, convenient to use can provide stable, accurate gypsum thick liquid density value.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model relates to a gypsum thick liquid defoaming and density measurement system outside limestone-gypsum method desulfurizing tower, including the absorption tower of the interior gypsum thick liquid that is equipped with, the row's thick liquid mouth of absorption tower has vapour and liquid separator through supplying thick liquid pipe connection, and vapour and liquid separator's top export is connected to the trench through exhaust duct, vapour and liquid separator's bottom export is connected with the densimeter through arranging thick liquid pipe, the pipeline connection is passed through in the export of densimeter to the trench.
The utility model relates to a lime stone-gypsum method desulfurizing tower outer gypsum thick liquid defoaming and density measurement system, wherein, it supplies the thick liquid valve to be provided with on the thick liquid pipeline.
The utility model relates to a gypsum thick liquid defoaming and density measurement system outside limestone-gypsum method desulfurizing tower, wherein, be provided with the air discharge valve door on the exhaust duct.
The utility model relates to a lime stone-gypsum method desulfurizing tower outer gypsum thick liquid defoaming and density measurement system, wherein, be provided with the thick liquid valve of arranging on the thick liquid pipeline.
The utility model relates to a gypsum thick liquid defoaming and density measurement system outside limestone-gypsum method desulfurizing tower, wherein, vapour and liquid separator adopts the vapour and liquid separator of gravity settlement principle.
The utility model relates to a lime stone-gypsum method desulfurizing tower outer gypsum thick liquid defoaming and density measurement system, wherein, vapour and liquid separator's effective volume is not less than 0.05m3。
The utility model relates to a gypsum thick liquid defoaming and density measurement system outside limestone-gypsum method desulfurizing tower, wherein, still include the technology water source, wash the pipeline with the exit linkage's at technology water source technology water washing, be provided with technology water washing valve on the technology water washing pipeline, gas-liquid separator's bottom export, arrange the entry of thick liquid valve, be provided with the three-way valve between the export of technology water washing valve.
The utility model relates to a lime stone-gypsum method desulfurizing tower outer gypsum thick liquid defoaming and density measurement system, wherein, the valve adopts the motorised valve is washed in technology water.
The utility model relates to a gypsum thick liquid defoaming and density measurement system outside limestone-gypsum method desulfurizing tower, wherein, the row's thick liquid mouth of absorption tower sets up in the bottom surface 1m department apart from the absorption tower.
The utility model relates to a lime stone-gypsum method desulfurizing tower outer gypsum thick liquid defoaming and density measurement system, wherein, the nominal diameter of the row's thick liquid mouth of absorption tower is 50 mm.
The utility model discloses beneficial effect:
the utility model relates to a system for defoaming and measuring density of gypsum slurry outside a limestone-gypsum method desulfurizing tower, which has simple structure; when the gypsum density meter is used, gypsum slurry with air bubbles in the absorption tower flows to the gas-liquid separator under the action of slurry static pressure, after gas-liquid separation is carried out in the gas-liquid separator through gravity settling, gas is discharged from the top outlet of the gas-liquid separator, the gypsum slurry is discharged from the bottom outlet of the gas-liquid separator, then flows through the density meter to measure the density of the gypsum slurry, and finally is discharged into a trench.
The utility model relates to a gypsum thick liquid defoaming and density measurement system outside limestone-gypsum method desulfurizing tower has set up the wash water system, has set up the technology water source promptly, washed the pipeline with the exit linkage's at technology water source technology water washing pipeline, technology water washing valve, if take place gypsum thick liquid and block up, can wash automatically, dredge the thick liquid pipeline, guarantee this gypsum thick liquid defoaming and density measurement system normal operating outside limestone-gypsum method desulfurizing tower, further guarantee that the densimeter provides stable, accurate gypsum thick liquid density value.
The utility model relates to an among limestone-gypsum method desulfurizing tower outer gypsum thick liquid defoaming and density measurement system, supply the setting of thick liquid valve, air vent valve, row's thick liquid valve, be convenient for the control and the maintenance of this system.
The invention is described in detail below with reference to the figures and the detailed description.
Drawings
Fig. 1 is a schematic diagram of the system for defoaming and measuring density of gypsum slurry outside a limestone-gypsum method desulfurization tower of the utility model.
The system comprises an absorption tower 1, gypsum slurry 2, a slurry supply pipeline 3, a slurry supply valve 4, a gas-liquid separator 6, a slurry discharge valve 8, a slurry discharge pipeline 9, a densimeter 10, a pipeline 11, an exhaust valve 12, an exhaust pipeline 13, a trench 14, a process water source 15, a process water flushing pipeline 16, a process water flushing valve 17, a three-way valve 18 and a slurry discharge port 19.
Detailed Description
As shown in figure 1, the utility model relates to a gypsum thick liquid defoaming and density measurement system outside limestone-gypsum method desulfurizing tower, including the absorption tower 1 that is equipped with gypsum thick liquid 2 in, the row's thick liquid mouth 19 of absorption tower 1 is connected with vapour and liquid separator 6 through supplying thick liquid pipeline 3, and the top export of vapour and liquid separator 6 is connected to trench 14 through exhaust duct 13, and the bottom export of vapour and liquid separator 6 is connected with densimeter 10 through arranging thick liquid pipeline 9, and the export of densimeter 10 is connected to trench 14 through pipeline 11. Wherein the gas-liquid separator 6 adopts the gravity settling principle and has an effective volume of not less than 0.05m3。
The utility model relates to a gypsum thick liquid defoaming and density measurement system outside lime stone-gypsum method desulfurizing tower still includes technology water source 15, washes pipeline 16 with the exit linkage's of technology water source technology water, is provided with technology water washing valve 17 on the technology water washing pipeline 16, and the bottom export of vapour and liquid separator 6, the entry of arranging thick liquid valve 8, the export that the valve 17 was washed in technology water are provided with three-way valve 18 between. As shown in fig. 1, an inlet one of the three-way valve 18 is communicated with the bottom outlet of the gas-liquid separator 6, an inlet two of the three-way valve 18 is communicated with the outlet of the process water flushing valve 17, and an outlet of the three-way valve 18 is communicated with the inlet of the slurry discharge valve 8.
The slurry supply pipeline is provided with a slurry supply valve 4. An exhaust valve 12 is provided in the exhaust duct 13. The slurry discharging pipeline 9 is provided with a slurry discharging valve 8. The slurry supply valve 4, the exhaust valve 12 and the slurry discharge valve 8 are all manual valves, and the process water washing valve 17 is an automatic valve, for example, an electric valve.
The slurry outlet 19 of the absorption tower 1 was disposed at a distance of 1m from the bottom surface of the absorption tower, and had a nominal diameter of 50mm, and the gypsum slurry 2 containing air bubbles in the absorption tower flowed from the outlet to the gas-liquid separator 6 under the static pressure of the gypsum slurry 2 in the absorption tower 1. The working principle of the gas-liquid separator 6 is that the gas-liquid separation is carried out by utilizing the gravity settling principle, and the effective volume of the gas-liquid separator 6 is not less than 0.05m3It is designed that the residence time of the gypsum slurry 2 in the gas-liquid separator 6 is not less than 15 s.
After passing through the gas-liquid separator 6, the gypsum slurry is discharged from the top of the gas-liquid separator 6, and an exhaust pipe 13 is connected to a trench 14. The gypsum slurry is discharged from the bottom of the gas-liquid separator 6, the densimeter 10 is installed on a slurry pipeline flowing from bottom to top, the inlet of the densimeter 10 is arranged at the bottom, the outlet is arranged at the top, the density of the gypsum slurry is measured, and the gypsum slurry is finally discharged into a trench 14 through a pipeline 11.
The utility model discloses well densimeter 10 adopts coriolis power mass flowmeter to measure thick liquid density. For example, an E + H brand Coriolis mass flow meter model 8I3B41-AAIBABAFADCAD2WAA1+ AA may be used. The measurement principle of this coriolis mass flowmeter is that, when a measured medium flows through a measuring tube of the mass flowmeter, the measuring tube vibrates continuously at a certain resonance frequency, and the vibration frequency changes with the density of the fluid, i.e., the resonance frequency is a function of the density of the fluid, so that the density value of the measured medium can be obtained. This principle is known and will not be described in detail here.
The working process of the system is as follows:
when the system is started, the slurry supply valve 4, the slurry discharge valve 8 and the exhaust valve 12 are fully opened, and the process water washing valve 17 is closed. When a large amount of slurry flows out from the exhaust valve 12, the exhaust valve 12 is closed to flow out only a small amount of slurry. Then the system is normally operated, and the density meter 10 can stably measure the density value of the slurry.
If the slurry deposits or blocks at the position of the gas-liquid separator 6, the position of the slurry discharge pipeline behind the gas-liquid separator 6 and in front of the slurry discharge valve 8, the position of the slurry discharge pipeline 9, the position of the pipeline 11 or the position of the slurry discharge valve 8, the slurry supply valve 4 and the exhaust valve 12 are closed, the process water washing valve 17 is opened, and the gas-liquid separator 6, the slurry discharge pipeline 9, the pipeline 11 and the slurry discharge valve 8 are washed and dredged.
If the slurry deposits and blocks at the positions of the slurry supply pipeline 3 and the slurry supply valve 4 and the pipeline behind the slurry supply pipeline 4 or the slurry supply valve 4, the slurry discharge valve 8 and the exhaust valve 12 are closed, the process water washing valve 17 is opened, and the pipeline behind the slurry supply pipeline 3 and the slurry supply valve 4 or the slurry supply valve 4 is washed and dredged.
The utility model has the advantages that:
the utility model discloses a system for defoaming and measuring density of gypsum slurry outside a limestone-gypsum method desulfurizing tower, which has simple structure and is convenient to control and maintain; when the gypsum density meter is used, gypsum slurry with bubbles in the absorption tower flows to the gas-liquid separator under the action of slurry static pressure, after gas-liquid separation is carried out in the gas-liquid separator through gravity settling, gas is discharged from an outlet at the top of the gas-liquid separator, the gypsum slurry is discharged from an outlet at the bottom of the gas-liquid separator, then the gypsum slurry flows through the density meter to measure the density of the gypsum slurry, and finally the gypsum slurry is discharged into a trench.
The utility model discloses outer gypsum thick liquid defoaming of lime stone-gypsum method desulfurizing tower and density measurement system has set up the flushing system: the process water source, the process water washing pipeline connected with the outlet of the process water source and the process water washing valve can automatically wash and dredge the slurry pipeline if the gypsum slurry is blocked, so that the defoaming and density measuring system for the gypsum slurry outside the limestone-gypsum method desulfurizing tower can normally operate, and the density meter can be further ensured to provide a stable and accurate density value of the gypsum slurry.
The above description is only for describing the preferred embodiments of the present invention, and not for limiting the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall within the protection scope defined by the claims of the present invention.
Claims (10)
1. The utility model provides a gypsum thick liquid defoaming and density measurement system outside limestone-gypsum method desulfurizing tower which characterized in that: including being equipped with absorption tower (1) of gypsum thick liquid (2) in, the thick liquid mouth (19) of arranging of absorption tower (1) are connected with vapour and liquid separator (6) through supplying thick liquid pipeline (3), and the top export of vapour and liquid separator (6) is connected to trench (14) through exhaust duct (13), the bottom export of vapour and liquid separator (6) is connected with densimeter (10) through arranging thick liquid pipeline (9), the export of densimeter (10) is connected to trench (14) through pipeline (11).
2. The system for defoaming and measuring density of gypsum slurry outside a limestone-gypsum method desulfurization tower according to claim 1, characterized in that: and a pulp supply valve (4) is arranged on the pulp supply pipeline.
3. The system for defoaming and measuring density of gypsum slurry outside a limestone-gypsum method desulfurization tower according to claim 2, characterized in that: an exhaust valve (12) is arranged on the exhaust pipeline (13).
4. The system for defoaming and measuring density of gypsum slurry outside a limestone-gypsum method desulfurization tower according to claim 3, characterized in that: and a slurry discharge valve (8) is arranged on the slurry discharge pipeline (9).
5. The system for defoaming and measuring density of gypsum slurry outside a limestone-gypsum method desulfurization tower according to claim 4, characterized in that: the gas-liquid separator (6) adopts a gravity settling principle.
6. The system for defoaming and measuring density of gypsum slurry outside a limestone-gypsum method desulfurization tower according to claim 5, characterized in that: the effective volume of the gas-liquid separator (6) is not less than 0.05m3。
7. The system for defoaming and measuring density of gypsum slurry outside a limestone-gypsum method desulfurization tower according to any one of claims 1 to 6, characterized in that: still include process water source (15), with the exit linkage's at process water source process water flushing pipe way (16), be provided with process water flushing valve (17) on process water flushing pipe way (16), be provided with three-way valve (18) between the export of the bottom export of vapour and liquid separator (6), the entry of row's thick liquid valve (8), the export of process water flushing valve (17).
8. The system for defoaming and measuring density of gypsum slurry outside a limestone-gypsum method desulfurization tower according to claim 7, characterized in that: the process water flushing valve (17) adopts an electric valve.
9. The system for defoaming and measuring density of gypsum slurry outside a limestone-gypsum method desulfurization tower according to claim 8, characterized in that: the slurry outlet (19) of the absorption tower (1) is arranged at a position 1m away from the bottom surface of the absorption tower.
10. The system for defoaming and measuring density of gypsum slurry outside a limestone-gypsum method desulfurization tower according to claim 9, characterized in that: the nominal diameter of the slurry outlet (19) of the absorption tower (1) is 50 mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123352296.8U CN216847352U (en) | 2021-12-29 | 2021-12-29 | System for defoaming and measuring density of gypsum slurry outside limestone-gypsum method desulfurizing tower |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123352296.8U CN216847352U (en) | 2021-12-29 | 2021-12-29 | System for defoaming and measuring density of gypsum slurry outside limestone-gypsum method desulfurizing tower |
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| CN216847352U true CN216847352U (en) | 2022-06-28 |
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