An adjustable dosing device

Abstract

This utility model relates to the field of boiler chemical dosing technology, specifically to an adjustable dosing device, comprising three metering tanks and triangular prism-shaped stirring blades disposed within the metering tanks, the stirring blades being driven by a mixer; the bottom of each metering tank is inverted conical, and the inner bottom surface of the metering tank is provided with several conical grinding heads to facilitate the crushing and dissolution of solid chemicals; a dosing port is opened at the upper end of the side wall of each metering tank, and a chemical outlet is opened at the lower end of the other side wall of each metering tank; an angular filter screen is fixed to the inner wall of the metering tank next to the chemical outlet; the chemical outlet is connected to the external boiler chemical dosing port through a dosing pipeline, a one-way valve is installed near the boiler chemical dosing port on the dosing pipeline, and a split-pipe internal thread micro-adjustment valve is installed near the chemical outlet on the dosing pipeline. This utility model adopts a split-type dosing system combined with an internal thread micro-adjustment valve to achieve precise and efficient dynamic control of boiler chemical dosing, improving work efficiency and accuracy.

Description

Technical Field

[0001] This utility model relates to the field of boiler chemical dosing technology, specifically to an adjustable chemical dosing device. Background Technology

[0002] Boiler water treatment is a crucial step in ensuring the safe, efficient, and economical operation of boilers. As the core of thermal energy equipment, improper water treatment can not only lead to decreased equipment efficiency and fuel waste but also potentially cause serious safety accidents. The "trisodium method," as the most classic and efficient water treatment method for industrial boilers, requires a dynamic dosing system because the boiler water quality is constantly changing, making fixed dosing methods insufficient for daily water treatment needs. Utility Model Content

[0003] The purpose of this invention is to provide an adjustable dosing device.

[0004] This utility model provides the following technical solution:

[0005] This utility model proposes an adjustable dosing device, comprising three metering tanks and triangular prism-shaped stirring blades disposed within the metering tanks, the stirring blades being driven by a mixer; the bottom of each metering tank is inverted conical, and the inner bottom surface of the metering tank is provided with several conical grinding heads to facilitate the crushing and dissolution of solid agents; a dosing port is opened at the upper end of the side wall of each metering tank, and a agent outlet is opened at the lower end of the other side wall of each metering tank; an angular filter screen is fixed to the inner wall of the metering tank next to the agent outlet; the agent outlet is connected to the external boiler dosing port through a dosing pipeline, a one-way valve is provided near the boiler dosing port of the dosing pipeline, and a micro-adjustment valve with a branch pipe is provided near the agent outlet of the dosing pipeline.

[0006] Furthermore, the three measuring tanks are a first tank, a third tank, and a second tank located between the first tank and the third tank;

[0007] The first medicine barrel is provided with a first stirring rod, and the lower part of the first stirring rod has the stirring blades;

[0008] The second medicine barrel is equipped with a second stirring rod, and the lower part of the second stirring rod has the stirring blades;

[0009] The third medicine tank is equipped with a third stirring rod, and the lower part of the third stirring rod has stirring blades;

[0010] The second stirring rod is driven to rotate by the mixer;

[0011] The upper part of the second stirring rod is provided with a first driving wheel, and the upper part of the first stirring rod is provided with a first driven wheel. A first transmission belt is sleeved between the first driving wheel and the first driven wheel, and the first driving wheel drives the first driven wheel to rotate through the first transmission belt.

[0012] The upper part of the second stirring rod is provided with a second driving wheel, and the upper part of the third stirring rod is provided with a second driven wheel; a second transmission belt is sleeved between the second driving wheel and the second driven wheel, and the second driving wheel drives the second driven wheel to rotate through the second transmission belt.

[0013] Furthermore, a splash guard is hinged to the connection between the dosing port and the inner wall of the metering tank.

[0014] Furthermore, a level gauge for detecting the liquid level inside the metering tank is provided on the side of the metering tank.

[0015] Furthermore, the inverted conical bottom of the measuring medicine barrel is provided with a drain outlet, which is connected to an external sewage collection point through a drain pipe, and a drain valve is provided on the drain pipe.

[0016] Furthermore, the dispensing pipelines of the three metering tanks are converged into a main pipe, which is then connected to the boiler dosing port. A micro-adjustment valve and a check valve are sequentially installed on the main pipe near the boiler dosing port.

[0017] Furthermore, a water inlet pipe is connected to the top of the measuring medicine barrel.

[0018] Compared with existing technologies, this utility model adopts a split-type dosing system combined with an internal thread fine-tuning valve to achieve precise and efficient dynamic control of boiler dosing, thereby improving the efficiency and accuracy of boiler dosing. Simultaneously, through a synchronous pulley and drive belt, the mixer drives three stirring rods to stir the dosing agent; the triangular prism design of the stirring blades reduces stirring resistance; the conical grinding head at the bottom of the metering tank promotes the pulverization and dissolution of solid agents; and an angular filter screen is installed at the agent outlet to prevent blockage. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a schematic diagram showing the connection relationship between the various stirring rods of this utility model.

[0021] Figure 3 This is a cross-sectional schematic diagram of the second medicine barrel of this utility model.

[0022] (The arrows in the diagram indicate the direction of material flow)

[0023] In the diagram, 00-boiler chemical dosing port; 1-first chemical tank; 2-second chemical tank; 3-third chemical tank; 4-stirring blade; 5-conical grinding head; 6-dosing port; 7-chemical outlet; 8-angled filter screen; 9-chemical outlet pipeline; 11-micro-adjusting valve inside the branch pipe; 12-first stirring rod; 13-second stirring rod; 14-third stirring rod; 15-mixer; 16-first driving wheel; 17-second driving wheel; 18-first driven wheel; 19-second driven wheel; 20-first transmission belt; 21-second transmission belt; 22-splash cover; 23-level gauge; 24-drain outlet; 25-drain valve; 26-main pipe; 27-micro-adjusting valve inside the main pipe; 28-check valve; 29-water inlet pipe; 30-drain pipe; 31-bearing; 32-inclined pipe; 33-frame. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] In the following embodiments, unless otherwise specified (such as first medicine barrel 1, second medicine barrel 2, third medicine barrel 3), the measuring medicine barrel is uniformly represented by the label "2".

[0026] See Figure 1 and Figure 3 In one embodiment of this utility model, an adjustable dosing device includes three metering tanks 2 and triangular prism-shaped stirring blades 4 disposed within the metering tanks 2. The stirring blades 4 are driven by a mixer 15. The bottom of the metering tanks 2 is inverted conical, and the inner bottom surface of the metering tanks 2 is provided with several conical grinding heads 5 to facilitate the crushing and dissolution of solid agents. A dosing port 6 is provided at the upper end of the side wall of the metering tanks 2, and a drug outlet 7 is provided at the lower end of the other side wall of the metering tanks. An angled filter screen 8 is fixed to the inner wall of the metering tanks 2 next to the drug outlet 7. The drug outlet 7 is connected to the external boiler dosing port 00 through a dosing pipe 9, and the dosing pipe 9 is located near the boiler dosing port 00. A one-way valve 28 is provided, and a micro-adjustment valve 11 is installed in the inner thread of the pipe near the drug outlet 7 in the drug outlet pipeline 9. In practical applications, the triangular prism-shaped stirring blade 4 can reduce stirring resistance, and at the same time, it helps to break and dissolve large solid drugs by collision during the stirring process. During the stirring process, the solid drugs settle at the bottom and continuously roll and collide on the conical grinding head 5 with the help of water flow, which helps to dissolve. The angular filter screen 8 has two filter surfaces, which is not easy to cause clogging, and can also promote the dissolution of solid crystal particles while stirring. Three metering tanks are set up to prepare and store sodium carbonate, sodium hydroxide, and trisodium phosphate respectively, and the amount of each drug is dynamically adjusted by the micro-adjustment valve in the inner thread of the pipe according to the daily test data.

[0027] See Figure 1In one embodiment of this utility model, the three measuring medicine barrels 2 are placed together in an iron frame 33, which facilitates movement and installation.

[0028] See Figure 1 and Figure 3 In one embodiment of this utility model, the dosing port 6 extends outward with an inclined pipe 32 to facilitate pouring of materials.

[0029] See Figure 2 In one embodiment of the present invention, the three measuring medicine barrels are a first medicine barrel 1, a third medicine barrel 3, and a second medicine barrel 2 located between the first medicine barrel 1 and the third medicine barrel 3;

[0030] The first medicine barrel is provided with a first stirring rod, and the lower part of the first stirring rod 12 has the stirring blade 4;

[0031] The second medicine barrel is equipped with a second stirring rod, and the lower part of the second stirring rod 13 has the stirring blade 4;

[0032] The third medicine barrel is equipped with a third stirring rod, and the lower part of the third stirring rod 14 has the stirring blade 4;

[0033] The second stirring rod 13 is driven to rotate by the mixer 15;

[0034] The upper part of the second stirring rod 13 is provided with a first driving wheel 16, and the upper part of the first stirring rod 12 is provided with a first driven wheel 18. A first transmission belt 20 is sleeved between the first driving wheel 16 and the first driven wheel 18. The first driving wheel 16 drives the first driven wheel 18 to rotate through the first transmission belt 20.

[0035] The upper part of the second stirring rod 13 is also provided with a second driving wheel 17, and the upper part of the third stirring rod 14 is provided with a second driven wheel 19; a second transmission belt 21 is sleeved between the second driving wheel 17 and the second driven wheel 19, and the second driving wheel 17 drives the second driven wheel to rotate through the second transmission belt 21.

[0036] In practical applications, the mixer 15 drives the second stirring rod 13 to rotate, the rotation of the second stirring rod 13 drives the first driving wheel 16 and the second driving wheel 17 to rotate, and then drives the first driven wheel 18 and the first stirring rod 12 to rotate through the first transmission belt 20, and drives the second driven wheel 19 and the third stirring rod 14 to rotate through the second transmission belt 21.

[0037] See Figure 2 In the above embodiments, the lids of the first medicine barrel 1, the second medicine barrel 2, and the third medicine barrel 3 are all fixed with a bearing 31, and the bearing 31 passes through the lid of the medicine barrel, and the stirring rod is fixedly passed through the bearing 31; so that the stirring rod can pass through the lid of the medicine barrel and rotate at the same time.

[0038] In one embodiment of this utility model, the mixer 15 is model BLD10-11-1.1KW220V.

[0039] See Figure 3 In one embodiment of this utility model, a splash guard 22 is hinged to the connection between the dosing port 6 and the inner wall of the metering tank 2 to prevent the medicine from splashing out.

[0040] Please continue reading. Figure 3 In one embodiment of this utility model, a level gauge 23 for detecting the liquid level inside the measuring medicine barrel is provided on the side of the measuring medicine barrel 2.

[0041] See Figure 1 and Figure 3 In one embodiment of this utility model, the inverted conical bottom end of the metering medicine barrel 2 is provided with a drain port 24, the drain port 24 is connected to an external sewage collection point through a drain pipe 30, and a drain valve 25 is provided on the drain pipe 30; in practical applications, unused solution or wastewater from cleaning the medicine barrel can be directly discharged from the drain port along the drain pipe, which is convenient for cleaning.

[0042] See Figure 1 In one embodiment of this utility model, the dispensing pipes 9 of the three metering medicine tanks 2 are converged into the main pipe 26, which is then connected to the boiler dosing port 00. The main pipe 26 is provided with a micro-adjustment valve 27 and a one-way valve 28 near the boiler dosing port 00. In practical applications, the boiler dosing port 00 is located in front of the boiler feed water pump (an external device, not shown in the figure). When the feed water pump is started, the negative pressure in the pipe can simultaneously draw the medicine into the boiler, achieving synchronous drug administration and precise adjustment.

[0043] See Figure 1 or Figure 3 In one embodiment of this utility model, the top of the metering tank 2 is connected to a water inlet pipe 29; when the material enters the metering tank 2 from the dosing port 6, water can enter the metering tank 2 through the water inlet pipe 29, instead of adding water after the material is added, thus improving efficiency.

[0044] In practical applications, the three metering tanks are equipped with sodium carbonate solution, sodium hydroxide solution, and trisodium phosphate solution, respectively. The flow rate is dynamically adjusted based on daily test data. For example: ① When the boiler water test results show excessive phosphate levels, the internal fine-tuning valve at the outlet of the tank containing trisodium phosphate is adjusted individually to reduce the flow rate of trisodium phosphate; ② When the boiler water test results show low total alkalinity and phenolphthalein alkalinity, the internal fine-tuning valves at the outlets of the sodium hydroxide and sodium carbonate tanks can be adjusted simultaneously to increase the supply of these two reagents; ③ When the boiler water's total alkalinity is within acceptable limits, but the phenolphthalein alkalinity exceeds the limit, the internal fine-tuning valve at the outlet of the sodium hydroxide tank can be adjusted individually to reduce the flow rate of sodium hydroxide.

[0045] The embodiments of this utility model are given for the purpose of illustration and description. Although embodiments of this utility model have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this utility model. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this utility model.

Claims

1. An adjustable dosing device, characterized in that: The device includes three metering tanks and triangular prism-shaped stirring blades installed inside the metering tanks. The stirring blades are driven by a mixer. The bottom of each metering tank is inverted conical, and the inner bottom surface of the metering tank is provided with several conical grinding heads to facilitate the crushing and dissolution of solid chemicals. A dosing port is opened at the upper end of the side wall of each metering tank, and a chemical outlet is opened at the lower end of the other side wall. An angular filter screen is fixed to the inner wall of the metering tank next to the chemical outlet. The chemical outlet is connected to the external boiler dosing port through a chemical outlet pipeline. A one-way valve is installed near the boiler dosing port on the chemical outlet pipeline, and a micro-adjustment valve with a branch pipe is installed near the chemical outlet on the chemical outlet pipeline.

2. The adjustable dosing device according to claim 1, characterized in that: The three measuring containers are a first container, a third container, and a second container located between the first container and the third container; The first medicine barrel is provided with a first stirring rod, and the lower part of the first stirring rod has the stirring blades; The second medicine barrel is equipped with a second stirring rod, and the lower part of the second stirring rod has the stirring blades; The third medicine tank is equipped with a third stirring rod, and the lower part of the third stirring rod has stirring blades; The second stirring rod is driven to rotate by the mixer; The upper part of the second stirring rod is provided with a first driving wheel, and the upper part of the first stirring rod is provided with a first driven wheel. A first transmission belt is sleeved between the first driving wheel and the first driven wheel, and the first driving wheel drives the first driven wheel to rotate through the first transmission belt. The upper part of the second stirring rod is provided with a second driving wheel, and the upper part of the third stirring rod is provided with a second driven wheel; a second transmission belt is sleeved between the second driving wheel and the second driven wheel, and the second driving wheel drives the second driven wheel to rotate through the second transmission belt.

3. The adjustable dosing device according to claim 1, characterized in that: A splash guard is hinged to the connection between the dosing port and the inner wall of the metering tank.

4. The adjustable dosing device according to claim 1, characterized in that: The side of the measuring medicine barrel is equipped with a level gauge for detecting the liquid level inside the measuring medicine barrel.

5. The adjustable dosing device according to claim 1, characterized in that: The metering medicine barrel has a drain outlet at its inverted conical bottom. The drain outlet is connected to an external sewage collection point through a drain pipe, and a drain valve is installed on the drain pipe.

6. The adjustable dosing device according to claim 1, characterized in that: The dispensing pipelines of the three metering tanks converge into the main pipe, which is then connected to the boiler dosing port. A micro-adjustment valve and a check valve are sequentially installed on the main pipe near the boiler dosing port.

7. The adjustable dosing device according to claim 1, characterized in that: The top of the measuring medicine barrel is connected to a water inlet pipe.

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