A reagent anti-precipitation system for a desulfurization system and a reagent precipitation monitoring method

Abstract

The present invention relates to a reagent anti-precipitation system for a desulfurization system and a reagent precipitation monitoring method. The reagent anti-precipitation system for a desulfurization system comprises a storage cabin, a storage cabin inlet pipe, a storage cabin spray pipe and a delivery pump, wherein the storage cabin inlet pipe is connected to the storage cabin spray pipe, and the delivery pump is arranged on the inlet pipe; the storage cabin inlet pipe comprises a plurality of storage cabin suction ports, and the storage cabin spray pipe comprises a plurality of storage cabin spray heads, the storage cabin suction ports and the storage cabin spray heads are both arranged in the storage cabin, and the plurality of storage cabin suction ports are evenly arranged at the bottom of the storage cabin, and the plurality of storage cabin spray heads are evenly arranged at the top of the storage cabin. The present invention can effectively promote the circulation of reagents in the storage cabin, avoid the reagents being in a stable state for a long time, resulting in the phenomenon that high concentrations of reagents are deposited at the bottom and a large number of reagent particles aggregate and agglomerate, and is conducive to the normal storage of reagents.

Description

Technical Field

[0001] The present invention relates to the technical field of ship engineering, and in particular to a reagent anti-precipitation system for a desulfurization system and a reagent precipitation monitoring method. Background Art

[0002] The International Maritime Organization (IMO) formally decided at the 70th session of the Marine Environment Protection Committee (MEPC70) that starting from January 1, 2020, ships around the world can only use fuel with a sulfur content not exceeding 0.5%. Existing ships in operation around the world must meet this requirement to reduce sulfur compounds (SO X )emission.

[0003] The existing countermeasures mainly include installing an exhaust gas purification system (desulfurization system), using low-sulfur oil fuel, switching to LNG fuel, etc. Among them, the installation of a desulfurization system is to use seawater or NaOH / Mg(OH)2) liquid to clean the SO in the exhaust gas. X To reduce the emission of sulfide on board, it is a more economical choice at this stage. Among them, the hybrid desulfurization system using Mg(OH)2 / NaOH alkali solution as the cleaning agent is a more popular desulfurization system.

[0004] When using this system, a Mg(OH)2 agent storage tank needs to be set up on the ship to store the acidic SO in the flue gas. X components, thereby achieving the purpose of circulating and washing the flue gas. However, since Mg(OH)2 is a suspension, its liquid viscosity is high, it is difficult to dissolve in water, and it is easy to precipitate. If it is deposited at the bottom of the liquid for a long time, it will condense and agglomerate, affecting its use and maintenance. Figure 1 , Figure 1 This is a schematic diagram of the structure of the reagent storage tank of the desulfurization system in the prior art. As shown in the figure, the common reagent storage tank in the prior art is designed only according to the general ship tank cabinet, and only a simple square cabin 10 is designed. In order to solve the precipitation problem during the reagent storage process, it is generally configured with an agitator, and the agitator motor 22 is used to drive the rotation of the agitator blade 24 to drive the reagent to circulate. However, this solution is only applicable to reagent storage tanks with smaller capacity, which cannot meet the needs of large-scale desulfurization systems. Summary of the invention

[0005] Based on this, the object of the present invention is to provide a chemical anti-precipitation system for a desulfurization system, which has the advantages of simple structure, low installation and maintenance costs and good anti-precipitation effect.

[0006] A chemical anti-sedimentation system for a desulfurization system, comprising a storage cabin, a storage cabin inlet pipe, a storage cabin spray pipe and a delivery pump, wherein the storage cabin inlet pipe is connected to the storage cabin spray pipe, and the delivery pump is arranged on the inlet pipe; the storage cabin inlet pipe comprises a plurality of storage cabin suction ports, and the storage cabin spray pipe comprises a plurality of storage cabin spray heads, the storage cabin suction ports and the storage cabin spray heads are both arranged in the storage cabin, and a plurality of the storage cabin suction ports are evenly arranged at the bottom of the storage cabin, and a plurality of the storage cabin spray heads are evenly arranged at the top of the storage cabin.

[0007] The agent anti-sedimentation system for the desulfurization system described in the embodiment of the present invention, through the storage tank inlet pipe, the storage tank spray pipe and the arrangement of the delivery pump, sucks the agent from the storage tank suction port arranged at the bottom of the storage tank, and then is pressurized and delivered to the top of the storage tank by the delivery pump, and is sprayed down through the storage tank spray head, thereby promoting the circulation of the agent in the storage tank, avoiding the agent being in a stable state for a long time, resulting in a high concentration of the agent being deposited at the bottom and then agglomerating a large number of agent particles, which is beneficial to the normal storage of the agent.

[0008] Furthermore, it also includes a stirring pipe, which includes a plurality of stirring nozzles, and the plurality of stirring nozzles are evenly arranged at the bottom of the storage compartment; the stirring pipe, the storage compartment inlet pipe and the storage compartment spray pipe are movably connected through a three-way conversion valve. Through the arrangement of the stirring nozzle, the medicine entering from the suction port of the storage bin can be sprayed out from the stirring nozzle, so that the medicine at the bottom of the storage compartment can be stirred, further promoting the flow of the liquid, and avoiding the problem of medicine particles agglomerating and agglomerating, which affects the use.

[0009] Further, the storage compartment inlet pipe includes a first storage compartment inlet pipe and a second storage compartment inlet pipe, and the first storage compartment inlet pipe and the second storage compartment inlet pipe both include a plurality of storage compartment suction ports; the delivery pump includes a first delivery pump and a second delivery pump, and the first delivery pump and the second delivery pump are respectively arranged on the first storage compartment inlet pipe and the second storage compartment inlet pipe; the storage compartment spray pipe includes a first storage compartment spray pipe and a second storage compartment spray pipe, and the first storage compartment spray pipe and the second storage compartment spray pipe both include a plurality of storage compartment spray heads, and the first storage compartment spray pipe is connected to the first storage compartment inlet pipe, and the second storage compartment spray pipe is connected to the second storage compartment inlet pipe. Through the above arrangement, by increasing the number of the storage compartment suction ports and the storage compartment spray heads, the fluidity of the liquid in the storage compartment is further increased, and by increasing the number of delivery pumps, the pressurization and delivery effects are ensured.

[0010] Further, the stirring pipe includes a first stirring pipe and a second stirring pipe, the three-way conversion valve includes a first three-way conversion valve and a second three-way conversion valve, the first stirring pipe, the first storage compartment inlet pipe and the first storage compartment spray pipe are movably connected through the first three-way conversion valve, and the second stirring pipe, the second storage compartment inlet pipe and the second storage compartment spray pipe are movably connected through the second three-way conversion valve. The provision of the first stirring pipe and the second stirring pipe helps to further improve the stirring effect on the liquid at the bottom of the storage compartment.

[0011] Further, the storage compartment includes a first compartment area and a second compartment area, the first delivery pump and the second delivery pump are both arranged outside the side wall of the first compartment area; the storage compartment suction port of the first storage compartment inlet pipe is arranged in the first compartment area, the storage compartment spray head of the first storage compartment spray pipe and the stirring spray head of the first stirring pipe are arranged in the second compartment area; the storage compartment suction port of the second storage compartment inlet pipe is arranged in the second compartment area, the storage compartment spray head of the second storage compartment spray pipe and the stirring spray head of the second stirring pipe are arranged in the first compartment area. By zoning the storage compartment suction port of the first storage compartment inlet pipe, the storage compartment spray head of the first storage compartment spray pipe and the stirring spray head of the first stirring pipe, and the storage compartment suction port of the second storage compartment inlet pipe, the storage compartment spray head of the second storage compartment spray pipe and the stirring spray head of the second stirring pipe, the lateral flow of the liquid in the storage bin can be promoted, the uniformity of the liquid can be improved, and the situation that the concentration of the reagent in different areas is different due to the large area of ​​the storage compartment can be avoided.

[0012] Furthermore, it also includes a maintenance cabin; the maintenance cabin is arranged adjacent to the storage cabin; a communication port is opened through the top side wall of the storage cabin, and the storage cabin and the maintenance cabin are movably connected through the communication port. The arrangement of the maintenance cabin enables the medicine in the storage cabin to be temporarily transferred to the maintenance cabin when the cabin condition of the storage cabin is maintained and inspected, and the transfer operation is convenient.

[0013] Furthermore, it also includes a maintenance cabin inlet pipe and a maintenance cabin spray pipe, wherein the maintenance cabin inlet pipe includes a plurality of maintenance cabin suction ports and is connected to the first storage cabin inlet pipe or / and the second storage cabin inlet pipe; the maintenance cabin spray pipe includes a plurality of maintenance cabin spray heads and is connected to the first storage cabin spray pipe or / and the second storage cabin spray pipe. The arrangement of the maintenance cabin inlet pipe and the maintenance cabin spray pipe enables the liquid in the maintenance cabin to be circulated for a short period of time during the maintenance process to avoid precipitation and agglomeration of the reagent.

[0014] Furthermore, the installation height of the maintenance cabin spray head is greater than the installation height of the maintenance cabin suction port, which helps to promote the circulation of the medicine.

[0015] Furthermore, the volume of the maintenance compartment is smaller than that of the storage compartment, which meets the requirements of normal maintenance situations and helps to save space.

[0016] The agent anti-precipitation system for the desulfurization system described in the embodiment of the present invention, through the storage tank inlet pipe, the storage tank spray pipe and the arrangement of the delivery pump, sucks the agent from the storage tank suction port arranged at the bottom of the storage tank, and is pressurized and transported to the top of the storage tank by the delivery pump, and is sprayed down through the storage tank spray head. In a preferred embodiment, combined with the arrangement of the stirring pipe and the stirring nozzle, further through the distribution arrangement of the storage tank inlet pipe, the storage tank spray pipe and the stirring pipe, the circulation flow of the agent in the storage tank is effectively promoted to avoid the agent being in a stable state for a long time, resulting in a high concentration of the agent being deposited at the bottom and then agglomerating agglomeration of a large number of agent particles, which is beneficial to the normal storage of the agent; and further combined with the arrangement of the maintenance tank, it is used to temporarily store the agent during the maintenance of the storage tank, which is convenient for the maintenance work of the storage tank. At the same time, through the arrangement of the maintenance tank inlet pipe and the maintenance tank spray pipe, the agent can also be circulated during the period of short-term storage of the agent in the maintenance tank to avoid its precipitation and agglomeration. The agent anti-sedimentation system for the desulfurization system described in the embodiment of the present invention can be retrofitted on the existing ship structure, has a simple structure, low installation and modification costs, low maintenance costs and can effectively avoid the problem of precipitation and agglomeration of agents during storage.

[0017] In addition, an embodiment of the present invention further provides a method for monitoring the precipitation of a reagent for a desulfurization system, wherein the desulfurization system comprises a control device and the above-mentioned reagent precipitation prevention system for a desulfurization system;

[0018] The control device is electrically connected to the delivery pump, the storage compartment spray head and the stirring spray head respectively, and controls the opening and closing thereof accordingly;

[0019] The desulfurization system agent anti-precipitation system further includes a sampling branch pipe and a detection device, wherein the sampling branch pipe is connected to the storage tank inlet pipe and is located at the rear side of the delivery pump; the sampling branch pipe is provided with a sampling valve, the control device is electrically connected to the sampling valve, and controls the opening and closing of the sampling valve; the detection device includes a container and a pressure sensor, the container is connected to the sampling branch pipe, the pressure sensor is electrically connected to the control device, and is used to detect the weight of the agent in the container;

[0020] The desulfurization system reagent precipitation monitoring method comprises the following steps:

[0021] S1. Preset the working cycle parameters and monitoring parameters of the desulfurization system agent anti-precipitation system of the control device through program settings, and input the initial agent concentration; the working cycle parameters include the start and stop time of the delivery pump, the storage cabin spray head and the stirring spray head; the monitoring parameters include the number of detection devices and the detection time interval; the initial agent concentration is the concentration before the agent is stored;

[0022] S2. According to the monitoring parameter setting, in each detection, the control device controls the sampling valve to open, and releases a fixed volume of medicine from the inlet pipe of the storage compartment into the container, and the pressure sensor senses the weight of the medicine in the container and transmits a detection signal to the control device;

[0023] S3. The control device receives and processes the detection signal to obtain concentration data of the medicine in the storage chamber, compares the concentration data with the initial medicine concentration, and makes a curve graph showing the change of concentration data over time.

[0024] The method for monitoring the precipitation of reagents for a desulfurization system described in an embodiment of the present invention releases a fixed volume of reagent from the inlet pipe of the storage compartment and detects its weight through the arrangement of the sampling branch pipe and the detection device. The control device can convert the concentration of the reagent according to the weight and volume, according to the molecular weights of water and the reagent, and can obtain the concentration of the reagent liquid in the storage compartment by comparing with the preset reference concentration value. The series of detection data can be further converted into a curve showing the change of reagent concentration over time, and whether precipitation of the reagent liquid in the storage compartment occurs can be determined based on the changing trend of the curve. The result can be intuitively displayed through the control device, with a high degree of automation, meeting market demands.

[0025] For better understanding and implementation, the present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the structure of the reagent storage cabin of the desulfurization system described in the prior art;

[0027] Figure 2 This is a schematic diagram of the structure of the maintenance cabin and the storage cabin described in Example 1 of the present invention;

[0028] Figure 3 The structure of the reagent anti-precipitation system for the desulfurization system according to Example 1 of the present invention is shown in FIG. Figure 1 ;

[0029] Figure 4 The structure of the reagent anti-precipitation system for the desulfurization system according to Example 1 of the present invention is shown in FIG. Figure 2 . DETAILED DESCRIPTION

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] Example 1

[0032] Please refer to Figure 2-4 , Figure 2 This is a schematic diagram of the structure of the maintenance cabin and the storage cabin according to Example 1 of the present invention. Figure 3 The structure of the reagent anti-precipitation system for the desulfurization system according to Example 1 of the present invention is shown in FIG. Figure 1 , Figure 4 The structure of the reagent anti-precipitation system for the desulfurization system according to Example 1 of the present invention is shown in FIG. Figure 2 Embodiment 1 of the present invention provides a desulfurization system for preventing precipitation of reagents, which includes a storage cabin 10, a storage cabin inlet pipe 20, a storage cabin spray pipe 30 and a delivery pump 40. The storage cabin inlet pipe 20 is connected to the storage cabin spray pipe 30, and the delivery pump 40 is arranged on the storage cabin inlet pipe 20; the storage cabin inlet pipe 20 includes a plurality of storage cabin suction ports 22, the storage cabin spray pipe 30 includes a plurality of storage cabin spray heads 32, the storage cabin suction ports 22 and the storage cabin spray heads 32 are both arranged in the storage cabin 10, and the plurality of storage cabin suction ports 22 are evenly arranged at the bottom of the storage cabin 10, and the plurality of storage cabin spray heads 32 are evenly arranged at the top of the storage cabin 10.

[0033] The agent anti-sedimentation system for the desulfurization system described in Example 1 of the present invention, through the storage tank inlet pipe, the storage tank spray pipe and the delivery pump, sucks the agent from the storage tank suction port set at the bottom of the storage tank, and then is pressurized and delivered to the top of the storage tank by the delivery pump, and is sprayed down through the storage tank spray head, thereby promoting the circulation of the agent in the storage tank, avoiding the agent from being in a stable state for a long time, resulting in a high concentration of the agent being deposited at the bottom and then agglomerating a large number of agent particles, which is beneficial to the normal storage of the agent.

[0034] As an optional implementation, in this embodiment, the desulfurization system reagent anti-precipitation system further includes a stirring pipe 50, the stirring pipe 50 includes a plurality of stirring nozzles 52, and the plurality of stirring nozzles 52 are evenly arranged at the bottom of the storage cabin 10; the stirring pipe 50, the storage cabin inlet pipe 20, and the storage cabin spray pipe 30 are movably connected through a three-way conversion valve 60. Through the arrangement of the stirring nozzle 52, the reagent entering from the storage cabin inlet pipe 20 and the storage cabin suction port 22 can be sprayed out from the stirring nozzle 52, so that the reagent at the bottom of the storage cabin 10 can be stirred, further promoting the flow of the liquid, and avoiding the problem of reagent precipitation and aggregation, which affects the use.

[0035] Specifically, the storage compartment inlet pipe 20 includes a first storage compartment inlet pipe 24 and a second storage compartment inlet pipe 26, and the first storage compartment inlet pipe 24 and the second storage compartment inlet pipe 26 both include a plurality of storage compartment suction ports 22; the delivery pump 40 includes a first delivery pump 42 and a second delivery pump 44, and the first delivery pump 42 and the second delivery pump 44 are respectively arranged at the first storage compartment inlet pipe 24 and the second storage compartment inlet pipe 26; the storage compartment spray pipe 30 includes a first storage compartment spray pipe 34 and a second storage compartment spray pipe 36, and the first storage compartment spray pipe 34 and the second storage compartment spray pipe 36 both include a plurality of storage compartment spray heads 32, and the first storage compartment spray pipe 34 is connected to the first storage compartment inlet pipe 24, and the second storage compartment spray pipe 36 is connected to the second storage compartment inlet pipe 26. Through the above configuration, by increasing the number of storage compartment suction ports 22 and storage compartment spray heads 32, the fluidity of the liquid in the storage compartment 10 is further increased, and by increasing the number of delivery pumps 40, the pressurization and delivery effects are ensured.

[0036] The stirring pipe 50 includes a first stirring pipe 54 and a second stirring pipe 56, and the three-way conversion valve 60 includes a first three-way conversion valve 62 and a second three-way conversion valve 64. The first stirring pipe 54, the first storage compartment inlet pipe 24 and the first storage compartment spray pipe 34 are movably connected through the first three-way conversion valve 62, and the second stirring pipe 56, the second storage compartment inlet pipe 26 and the second storage compartment spray pipe 36 are movably connected through the second three-way conversion valve 64. The provision of the first stirring pipe 54 and the second stirring pipe 56 helps to further improve the stirring effect on the liquid at the bottom of the storage compartment 10.

[0037] As an optional embodiment, in this embodiment, the storage cabin 10 includes a first cabin area 12 and a second cabin area 14, and the first delivery pump 42 and the second delivery pump 44 are both arranged on the outside of the side wall of the first cabin area 12; the storage cabin suction port 22 of the first storage cabin inlet pipe 24 is arranged in the first cabin area 12, the storage cabin spray head 32 of the first storage cabin spray pipe 34 and the stirring nozzle 52 of the first stirring pipe 54 are arranged in the second cabin area 14; the storage cabin suction port 22 of the second storage cabin inlet pipe 26 is arranged in the second cabin area 14, the storage cabin spray head 32 of the second storage cabin spray pipe 36 and the stirring nozzle 52 of the second stirring pipe 56 are arranged in the first cabin area 12. By zoning the positions of the storage compartment suction port 22 of the first storage compartment inlet pipe 24, the storage compartment spray head 32 of the first storage compartment spray pipe 34, the stirring nozzle 52 of the first stirring tube 54, and the storage compartment suction port 22 of the second storage compartment inlet pipe 26, the storage compartment spray head 32 of the second storage compartment spray pipe 36, and the stirring nozzle 52 of the second stirring tube 56, the lateral flow of the liquid in the storage bin can be promoted, the uniformity of the liquid can be improved, and the situation of different drug concentrations in different areas due to the large area of ​​the storage compartment 10 can be avoided.

[0038] As an optional implementation, in this embodiment, the desulfurization system reagent precipitation prevention system further includes a maintenance cabin 70; the maintenance cabin 70 is arranged adjacent to the storage cabin 10; a communication port 16 is provided through the top side wall of the storage cabin 10, and the storage cabin 10 and the maintenance cabin 70 are movably connected through the communication port 16. The provision of the maintenance cabin 70 enables the reagent in the storage cabin 10 to be temporarily transferred to the maintenance cabin 70 when the cabin condition of the storage cabin 10 is maintained and inspected, and the transfer operation is convenient.

[0039] Furthermore, the desulfurization system reagent precipitation prevention system described in this embodiment further includes a maintenance cabin inlet pipe 80 and a maintenance cabin spray pipe 90. The maintenance cabin inlet pipe 80 includes a plurality of maintenance cabin suction ports 82 and is connected to the first storage cabin inlet pipe 24 and / or the second storage cabin inlet pipe 26. The maintenance cabin spray pipe 90 includes a plurality of maintenance cabin spray heads 92 and is connected to the first storage cabin spray pipe 34 and / or the second storage cabin spray pipe 36. The provision of the maintenance cabin inlet pipe 80 and the maintenance cabin spray pipe 90 enables the liquid in the maintenance cabin 70 to be circulated for a short period of time during the maintenance process to prevent the reagent from precipitating and agglomerating.

[0040] Specifically, the maintenance cabin spray head 92 is set at a height greater than the maintenance cabin suction port 82, which helps to promote the circulation of the medicine. The volume of the maintenance cabin 70 is smaller than the volume of the storage cabin 10, which meets the needs of normal maintenance and helps to save space.

[0041] The agent anti-precipitation system for the desulfurization system described in the embodiment of the present invention, through the storage tank inlet pipe, the storage tank spray pipe and the arrangement of the delivery pump, sucks the agent from the storage tank suction port arranged at the bottom of the storage tank, and is pressurized and transported to the top of the storage tank by the delivery pump, and is sprayed down through the storage tank spray head. In a preferred embodiment, combined with the arrangement of the stirring pipe and the stirring nozzle, further through the distribution arrangement of the storage tank inlet pipe, the storage tank spray pipe and the stirring pipe, the circulation flow of the agent in the storage tank is effectively promoted to avoid the agent being in a stable state for a long time, resulting in a high concentration of the agent being deposited at the bottom and then agglomerating agglomeration of a large number of agent particles, which is beneficial to the normal storage of the agent; and further combined with the arrangement of the maintenance tank, it is used to temporarily store the agent during the maintenance of the storage tank, which is convenient for the maintenance work of the storage tank. At the same time, through the arrangement of the maintenance tank inlet pipe and the maintenance tank spray pipe, the agent can also be circulated during the period of short-term storage of the agent in the maintenance tank to avoid its precipitation and agglomeration. The agent anti-sedimentation system for the desulfurization system described in the embodiment of the present invention can be retrofitted on the existing ship structure, has a simple structure, low installation and modification costs, low maintenance costs and can effectively avoid the problem of precipitation and agglomeration of agents during storage.

[0042] Example 2

[0043] Embodiment 2 of the present invention provides a method for monitoring the precipitation of a reagent for a desulfurization system, wherein the desulfurization system comprises a control device and the reagent precipitation prevention system for the desulfurization system described in the embodiment.

[0044] The control device is electrically connected to the delivery pump, the storage compartment spray head and the stirring spray head respectively, and controls the opening and closing thereof accordingly.

[0045] The desulfurization system agent anti-sedimentation system also includes a sampling branch pipe and a detection device, wherein the sampling branch pipe is connected to the storage tank inlet pipe and is located at the rear side of the delivery pump; the sampling branch pipe is provided with a sampling valve, the control device is electrically connected to the sampling valve, and controls the opening and closing of the sampling valve; the detection device includes a container and a pressure sensor, the container is connected to the sampling branch pipe, and the pressure sensor is electrically connected to the control device, and is used to detect the weight of the agent in the container.

[0046] The desulfurization system reagent precipitation monitoring method comprises the following steps:

[0047] S1. Preset the working cycle parameters and monitoring parameters of the desulfurization system agent anti-precipitation system through the program setting of the control device, and input the initial agent concentration; the working cycle parameters include the start and stop time of the delivery pump, the storage tank spray head and the stirring spray head; the monitoring parameters include the number of times and the detection time interval of the detection device; the initial agent concentration is the concentration before the agent is stored;

[0048] S2. According to the monitoring parameter setting, the control device controls the sampling valve to open in each detection, and releases a fixed volume of medicine from the inlet pipe of the storage compartment into the container, and the pressure sensor senses the weight of the medicine in the container and transmits a detection signal to the control device;

[0049] S3. The control device receives and processes the detection signal to obtain concentration data of the medicine in the storage chamber, compares the concentration data with the initial medicine concentration, and makes a curve graph showing the change of concentration data over time.

[0050] The method for monitoring the precipitation of reagents in the storage tank of a desulfurization system described in an embodiment of the present invention performs multiple tests at equal time intervals within the working cycle of the reagent anti-precipitation system for the desulfurization system through the arrangement of the sampling branch pipe and the detection device. In each test, a fixed volume of reagent is released from the inlet pipe of the storage tank and its weight is detected. The control device can convert the concentration of the reagent according to the weight and volume according to the molecular weight of water and the reagent, and compare it with the initial reagent concentration to obtain the condition of the reagent liquid in the storage tank. When the concentration data obtained in each test have no obvious difference from the initial reagent concentration, or the error is within the preset allowable range, it means that the circulation of the reagent liquid in the storage tank is good and there is no obvious reagent precipitation. Furthermore, the series of concentration detection data measured multiple times can be converted into a curve of reagent concentration changing with time, and the change trend of the curve can be used to determine whether the liquid in the storage tank is stable. Precipitation occurs, and the control device can be further provided with a display screen or an external display device for intuitive display; when the change curve shows that the concentration of the reagent gradually increases with time, it indicates that the position of the storage tank suction port, that is, the concentration of the reagent at the bottom of the storage tank increases, indicating that the reagent solute is still gradually sinking to the bottom of the storage tank, and has a tendency to produce precipitation or has produced a small amount of precipitation; when the change curve shows that the concentration of the reagent gradually decreases with time, the content of dissolved solutes in the surface reagent liquid decreases, and the reagent at the bottom of the storage tank has already appeared agglomeration and precipitation; the rising trend or the falling trend of the change curve shows that the liquid circulation in the storage tank is poor, and the working intensity of the reagent precipitation system for the desulfurization system can be further increased by increasing the number of the storage tank suction port, the storage tank spray head and the stirring spray head, or increasing the power of the delivery pump, or the related equipment needs to be repaired and troubleshooted. The above settings and steps are reasonably designed, with a high degree of automation, and meet market demand.

[0051] The above-mentioned embodiments only express several implementation methods of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A chemical anti-precipitation system for a desulfurization system, characterized in that: It comprises a storage cabin, a storage cabin inlet pipe, a storage cabin spray pipe, a delivery pump and a maintenance cabin, wherein the storage cabin inlet pipe is connected to the storage cabin spray pipe, and the delivery pump is arranged on the inlet pipe; the storage cabin inlet pipe comprises a plurality of storage cabin suction ports, the storage cabin spray pipe comprises a plurality of storage cabin spray heads, the storage cabin suction ports and the storage cabin spray heads are both arranged in the storage cabin, and the plurality of storage cabin suction ports are evenly arranged at the bottom of the storage cabin, and the plurality of storage cabin spray heads are evenly arranged at the top of the storage cabin; It also includes a stirring pipe, the stirring pipe includes a plurality of stirring nozzles, and the plurality of stirring nozzles are evenly arranged at the bottom of the storage compartment; the stirring pipe, the storage compartment inlet pipe and the storage compartment spray pipe are movably connected through a three-way conversion valve; The storage compartment inlet pipe includes a first storage compartment inlet pipe and a second storage compartment inlet pipe, and the first storage compartment inlet pipe and the second storage compartment inlet pipe both include a plurality of storage compartment suction ports; the delivery pump includes a first delivery pump and a second delivery pump, and the first delivery pump and the second delivery pump are respectively arranged on the first storage compartment inlet pipe and the second storage compartment inlet pipe; the storage compartment spray pipe includes a first storage compartment spray pipe and a second storage compartment spray pipe, and the first storage compartment spray pipe and the second storage compartment spray pipe both include a plurality of storage compartment spray heads, and the first storage compartment spray pipe is connected to the first storage compartment inlet pipe, and the second storage compartment spray pipe is connected to the second storage compartment inlet pipe; The stirring pipe includes a first stirring pipe and a second stirring pipe, the three-way conversion valve includes a first three-way conversion valve and a second three-way conversion valve, the first stirring pipe, the first storage compartment inlet pipe and the first storage compartment spray pipe are movably connected through the first three-way conversion valve, and the second stirring pipe, the second storage compartment inlet pipe and the second storage compartment spray pipe are movably connected through the second three-way conversion valve; The storage compartment comprises a first compartment area and a second compartment area, the first delivery pump and the second delivery pump are both arranged on the outside of the side wall of the first compartment area; the storage compartment suction port of the first storage compartment inlet pipe is arranged in the first compartment area, the storage compartment spray head of the first storage compartment spray pipe and the stirring spray head of the first stirring pipe are arranged in the second compartment area; the storage compartment suction port of the second storage compartment inlet pipe is arranged in the second compartment area, the storage compartment spray head of the second storage compartment spray pipe and the stirring spray head of the second stirring pipe are arranged in the first compartment area; The maintenance cabin is arranged adjacent to the storage cabin; a communication port is formed through the top side wall of the storage cabin, and the storage cabin and the maintenance cabin are movably connected through the communication port.

2. The chemical anti-precipitation system for a desulfurization system according to claim 1, characterized in that: It also includes a maintenance cabin inlet pipe and a maintenance cabin spray pipe, wherein the maintenance cabin inlet pipe includes a plurality of maintenance cabin suction ports and is connected to the first storage cabin inlet pipe and / or the second storage cabin inlet pipe; the maintenance cabin spray pipe includes a plurality of maintenance cabin spray heads and is connected to the first storage cabin spray pipe and / or the second storage cabin spray pipe.

3. The chemical anti-precipitation system for desulfurization system according to claim 2, characterized in that: The installation height of the maintenance compartment spray head is greater than the installation height of the maintenance compartment suction port.

4. The chemical anti-precipitation system for a desulfurization system according to claim 3, characterized in that: The volume of the maintenance compartment is smaller than the volume of the storage compartment.

5. A method for monitoring the precipitation of reagents for a desulfurization system, characterized in that: The desulfurization system comprises a control device and a desulfurization system for preventing precipitation of a chemical according to any one of claims 1 to 4; The control device is electrically connected to the delivery pump, the storage compartment spray head and the stirring spray head respectively, and controls the opening and closing thereof accordingly; The desulfurization system agent anti-precipitation system further includes a sampling branch pipe and a detection device, wherein the sampling branch pipe is connected to the storage tank inlet pipe and is located at the rear side of the delivery pump; the sampling branch pipe is provided with a sampling valve, the control device is electrically connected to the sampling valve, and controls the opening and closing of the sampling valve; the detection device includes a container and a pressure sensor, the container is connected to the sampling branch pipe, the pressure sensor is electrically connected to the control device, and is used to detect the weight of the agent in the container; The desulfurization system reagent precipitation monitoring method comprises the following steps: S1. Preset the working cycle parameters and monitoring parameters of the desulfurization system agent anti-precipitation system through the program setting of the control device, and input the initial agent concentration; the working cycle parameters include the start and stop time of the delivery pump, the storage tank spray head and the stirring spray head; the monitoring parameters include the number of times and the detection time interval of the detection device; the initial agent concentration is the concentration before the agent is stored; S2. According to the monitoring parameter setting, in each detection, the control device controls the sampling valve to open, and releases a fixed volume of medicine from the inlet pipe of the storage compartment into the container, and the pressure sensor senses the weight of the medicine in the container and transmits a detection signal to the control device; S3. The control device receives and processes the detection signal to obtain concentration data of the medicine in the storage chamber, compares the concentration data with the initial medicine concentration, and makes a curve graph showing the change of concentration data over time.

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