Mixing and adding device for boiler scale inhibitor

Abstract

The utility model discloses a boiler scale inhibitor mixing and adding device, which relates to the technical field of scale inhibitor mixing devices, and comprises a liquid mixing barrel assembly, a valve assembly and a mixing assembly, the liquid mixing barrel assembly consists of an upper stirring barrel, a first connecting flange, a lower liquid storage barrel and a second connecting flange, the valve assembly is used for controlling the connection and disconnection of the upper stirring barrel and the lower liquid storage barrel; the mixing assembly comprises an upper stirring unit and a lower stirring unit; the upper stirring unit is used for carrying out high-speed stirring in the upper stirring barrel, and the lower stirring unit is used for carrying out low-speed stirring in the lower liquid storage barrel. According to the utility model, the upper stirring barrel and the lower liquid storage barrel are arranged, the liquid storage barrels are used for storing scale inhibitor mixed liquid and supplying the scale inhibitor mixed liquid to a boiler water system, the upper stirring barrel is used for stirring and mixing the scale inhibitor mixed liquid, and the electromagnetic valve is controlled to be opened to perform liquid supplementing operation on the lower liquid storage barrel, so that stable supply of the scale inhibitor mixed liquid can be realized.

Description

Technical Field

[0001] This utility model relates to the technical field of scale inhibitor mixing devices, specifically a boiler scale inhibitor mixing and adding device. Background Technology

[0002] Boiler scale inhibitors are chemical agents used to prevent scale formation in boiler water systems. They inhibit the deposition of calcium, magnesium, and other ions in the water, ensuring the efficient and safe operation of the boiler.

[0003] The scale inhibitor mixing and addition device is a key piece of equipment in the boiler water treatment system. It uses a flow meter or mass sensor to adjust the ratio of scale inhibitor to dilution water and a mechanical stirrer to ensure uniform dissolution of the agent. It is used to accurately prepare and mix the scale inhibitor and add it to the boiler feedwater, ensuring that the scale inhibitor is evenly dispersed and the dosage is controllable.

[0004] In actual operation, after the scale inhibitor mixing and adding device completes the single mixing of scale inhibitor, it is necessary to wait until all the mixed liquid inside the mixing tank is used up before the second mixing of scale inhibitor can be carried out. During this process, the mixing tank stops supplying scale inhibitor mixed liquid, which will affect the smooth operation of the boiler water system. Based on this, a boiler scale inhibitor mixing and adding device is provided. Utility Model Content

[0005] The purpose of this invention is to provide a boiler scale inhibitor mixing and addition device in order to solve the problems mentioned above.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a boiler scale inhibitor mixing and adding device, comprising a mixing tank assembly, the mixing tank assembly consisting of an upper stirring tank, a first connecting flange, a lower storage tank, and a second connecting flange, the first connecting flange being fixed to the bottom of the upper stirring tank, the second connecting flange being fixed to the top of the lower storage tank, the upper stirring tank being distributed above the lower storage tank and connected and fixed to the second connecting flange through the lower storage tank, one end of the outer wall of the lower storage tank being fixed with a liquid outlet, the liquid outlet being used to communicate with the boiler water system, and the upper stirring tank being used to provide space for mixing;

[0007] The lower storage tank is used to provide storage space for the mixed scale inhibitor solution and to provide the scale inhibitor solution to the boiler water system;

[0008] A valve assembly is provided between the upper stirring tank and the lower storage tank. The valve assembly is used to control the connection and disconnection between the upper stirring tank and the lower storage tank.

[0009] Furthermore, the top of the upper mixing tank is provided with a mixing component extending into the lower storage tank, the mixing component including an upper stirring unit and a lower agitation unit;

[0010] The upper stirring unit is used to perform high-speed stirring inside the upper stirring tank, and the lower stirring unit is used to perform low-speed stirring inside the lower storage tank.

[0011] As a further embodiment of this utility model: the valve assembly includes a first connecting pipe, a second connecting pipe, and a solenoid valve;

[0012] The first connecting pipe is fixed to the bottom of one side of the upper mixing tank and communicates with the inner cavity of the upper mixing tank. The second connecting pipe is fixed to the top of one side of the lower storage tank and communicates with the inner cavity of the lower storage tank. The electromagnetic valve is connected between the first connecting pipe and the second connecting pipe and is used to realize the connection and disconnection of the first connecting pipe and the second connecting pipe.

[0013] As a further embodiment of this utility model: the upper stirring unit includes a drive motor and a high-speed stirring shaft;

[0014] The drive motor is installed at the center of the top of the upper mixing tank, and the high-speed stirring shaft is fixed to the output end of the drive motor and extends into the interior of the upper mixing tank. The drive motor drives the high-speed stirring shaft to rotate for high-speed stirring of the interior of the upper mixing tank.

[0015] As a further embodiment of this utility model: the lower stirring unit includes a transmission pinion, a polygonal docking column, a driven large gear, and a low-speed rotating shaft;

[0016] The transmission pinion is rotatably mounted at the center of the top of the lower storage tank. The polygonal docking post is fixed to the top of the transmission pinion. The driven large gear is distributed on one side of the transmission pinion and meshes with the transmission pinion. The low-speed rotating shaft is fixed to the bottom of the driven large gear and extends into the interior of the lower storage tank.

[0017] The bottom of the high-speed stirring shaft extends through to the bottom of the upper stirring tank and has a polygonal docking hole. The high-speed stirring shaft is sleeved on the outside of the polygonal docking post through the polygonal docking hole to realize the synchronous rotation of the high-speed stirring shaft, the transmission pinion, and the polygonal docking post.

[0018] As a further improvement of this utility model: observation ports are provided on one side of the top of the upper mixing tank and the first connecting flange, and detection ports are provided on the top of the upper mixing tank and the first connecting flange. The detection ports are used to provide an installation position for the water level sensor.

[0019] The top of the upper mixing tank is also equipped with a scale inhibitor inlet and a water inlet.

[0020] As a further improvement of this utility model, rotary seals are provided at the contact points between the high-speed stirring shaft and the upper stirring tank, and between the low-speed rotating shaft and the lower storage tank.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] 1. By setting up an upper mixing tank and a lower storage tank, the scale inhibitor mixture is stored in the storage tank and supplied to the boiler water system. The upper mixing tank is used to mix the scale inhibitor mixture. The solenoid valve is opened to replenish the lower storage tank, thus achieving a stable supply of scale inhibitor mixture.

[0023] 2. By setting up a mixing component, high-speed stirring inside the upper mixing tank and low-speed stirring inside the lower storage tank can be achieved. The structure is simple and convenient, and the detachable structure of the upper mixing tank and the lower storage tank facilitates equipment maintenance. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0026] Figure 3 This is a cross-sectional exploded view of the present invention.

[0027] In the diagram: 1. Mixing tank assembly; 101. Upper mixing tank; 102. First connecting flange; 103. Lower storage tank; 104. Second connecting flange; 105. Observation port; 106. Detection port; 107. Scale inhibitor inlet; 108. Water inlet; 109. Liquid outlet; 2. Valve assembly; 201. First connecting pipe; 202. Second connecting pipe; 203. Solenoid valve; 3. Mixing assembly; 301. Drive motor; 302. High-speed stirring shaft; 303. Polygonal docking hole; 304. Transmission pinion; 305. Polygonal docking column; 306. Driven large gear; 307. Low-speed rotating shaft. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figures 1-3In this embodiment of the present invention, a boiler scale inhibitor mixing and adding device includes a mixing tank assembly 1, which consists of an upper stirring tank 101, a first connecting flange 102, a lower storage tank 103, and a second connecting flange 104. The first connecting flange 102 is fixed to the bottom of the upper stirring tank 101, and the second connecting flange 104 is fixed to the top of the lower storage tank 103. The upper stirring tank 101 is distributed above the lower storage tank 103 and is connected and fixed to the second connecting flange 104 through the lower storage tank 103. One end of the outer wall of the lower storage tank 103 is fixed with a liquid outlet 109, which is used to communicate with the boiler water system. The upper stirring tank 101 is used to provide space for mixing.

[0030] The lower storage tank 103 is used to provide storage space for the mixed scale inhibitor solution and to supply the scale inhibitor solution to the boiler water system;

[0031] A valve assembly 2 is provided between the upper stirring tank 101 and the lower storage tank 103. The valve assembly 2 is used to control the connection and disconnection between the upper stirring tank 101 and the lower storage tank 103.

[0032] Furthermore, the top of the upper mixing tank 101 is provided with a mixing component 3 extending into the lower storage tank 103. The mixing component 3 includes an upper stirring unit and a lower agitation unit.

[0033] The upper stirring unit is used to perform high-speed stirring inside the upper stirring tank 101, and the lower stirring unit is used to perform low-speed stirring inside the lower storage tank 103.

[0034] Valve assembly 2 includes a first connecting pipe 201, a second connecting pipe 202, and a solenoid valve 203;

[0035] The first connecting pipe 201 is fixed to the bottom of one side of the upper mixing tank 101 and is in communication with the inner cavity of the upper mixing tank 101. The second connecting pipe 202 is fixed to the top of one side of the lower storage tank 103 and is in communication with the inner cavity of the lower storage tank 103. The electromagnetic valve 203 is connected between the first connecting pipe 201 and the second connecting pipe 202. The electromagnetic valve 203 is used to realize the connection and cut-off of the first connecting pipe 201 and the second connecting pipe 202.

[0036] An observation port 105 is provided on one side of the top of the upper mixing tank 101 and the first connecting flange 102, and a detection port 106 is provided on the top of the upper mixing tank 101 and the first connecting flange 102. The detection port 106 is used to provide an installation position for the water level sensor.

[0037] The top of the upper mixing tank 101 is also provided with a scale inhibitor inlet 107 and a water inlet 108;

[0038] The upper stirring unit includes a drive motor 301 and a high-speed stirring shaft 302;

[0039] The drive motor 301 is installed at the center of the top of the upper mixing tank 101. The high-speed stirring shaft 302 is fixed to the output end of the drive motor 301 and extends into the interior of the upper mixing tank 101. The drive motor 301 drives the high-speed stirring shaft 302 to rotate for high-speed stirring of the interior of the upper mixing tank 101.

[0040] In this embodiment, it should be noted that: the scale inhibitor inlet 107 is connected to the scale inhibitor stock solution storage tank via a metering pump, the water inlet 108 is connected to an external water pipe, and a detection port 106 is installed. When water is input into the upper mixing tank 101 through the water inlet 108, the water level sensor on the upper mixing tank 101 can monitor the water level inside the upper mixing tank 101. When the set water level is reached, the water supply can be stopped. Afterwards, when the scale inhibitor stock solution is input into the upper mixing tank 101 through the scale inhibitor inlet 107, the metering pump is used to realize the quantitative addition of the scale inhibitor stock solution.

[0041] During this process, the drive motor 301 can be started simultaneously, and the drive motor 301 drives the high-speed stirring shaft 302 to rotate at high speed. The high-speed stirring shaft 302 is located inside the upper stirring tank 101 and has stirring blades fixed thereon. The high-speed rotation of the stirring blades can achieve high-speed stirring of the scale inhibitor mixture, thereby achieving efficient and uniform mixing of the scale inhibitor mixture.

[0042] After the scale inhibitor mixture inside the upper mixing tank 101 is fully mixed, the solenoid valve 203 can be activated to open it. The scale inhibitor mixture inside the upper mixing tank 101 is then transported to the lower storage tank 103 through the pipeline consisting of the first connecting pipe 201, the solenoid valve 203, and the second connecting pipe 202. Finally, all the scale inhibitor mixture inside the upper mixing tank 101 is discharged, and the solenoid valve 203 is closed.

[0043] The lower storage tank 103 can supply scale inhibitor mixture to the boiler water system through the outlet 109. At the same time, the water level sensor on the lower storage tank 103 can monitor the water level inside the lower storage tank 103. When the water level inside the lower storage tank 103 drops to the set height, the inlet 108 and the scale inhibitor inlet 107 start to add materials into the upper mixing tank 101 to perform a secondary scale inhibitor mixing operation. During this process, the lower storage tank 103 still provides a stable supply of scale inhibitor mixture.

[0044] Once the secondary scale inhibitor mixture is ready, control the solenoid valve 203 to open and replenish the lower storage tank 103. Repeat this process to achieve a stable supply of the scale inhibitor mixture.

[0045] Please refer to this carefully. Figures 2-3 The lower agitation unit includes a transmission pinion 304, a polygonal docking column 305, a driven large gear 306, and a low-speed rotating shaft 307.

[0046] The transmission pinion 304 is rotatably mounted at the top center of the lower liquid storage tank 103. The polygonal docking post 305 is fixed to the top of the transmission pinion 304. The driven large gear 306 is distributed on one side of the transmission pinion 304 and meshes with the transmission pinion 304. The low-speed rotating shaft 307 is fixed to the bottom of the driven large gear 306 and extends into the interior of the lower liquid storage tank 103.

[0047] The bottom of the high-speed stirring shaft 302 extends through to the bottom of the upper stirring tank 101 and has a polygonal docking hole 303. The high-speed stirring shaft 302 is sleeved on the outside of the polygonal docking post 305 through the polygonal docking hole 303 to realize the synchronous rotation of the high-speed stirring shaft 302, the transmission pinion 304, and the polygonal docking post 305.

[0048] In this embodiment: when the drive motor 301 drives the high-speed stirring shaft 302 to rotate at high speed, the high-speed stirring shaft 302 synchronously drives the polygonal docking column 304 and the transmission pinion 304 to rotate. The transmission pinion 304 drives the driven large gear 306 to rotate, realizing speed reduction transmission. The driven large gear 306 drives the low-speed rotating shaft 307 to rotate. The low-speed rotating shaft 307 is located inside the lower liquid storage tank 103 and fixes the stirring blades. By rotating the stirring blades at low speed, the scale inhibitor mixture inside the lower liquid storage tank 103 is kept in a flowing state, avoiding sedimentation caused by the mixture standing still.

[0049] Please refer to this carefully. Figures 1-3 Rotary seals are provided at the contact points between the high-speed stirring shaft 302 and the upper stirring tank 101, and between the low-speed rotating shaft 307 and the lower storage tank 103.

[0050] In this embodiment: this structure is used to ensure a good seal between the upper mixing tank 101 and the lower storage tank 103, and to prevent leakage of the mixture.

[0051] It should also be noted that the top of the upper mixing tank 101 and the lower storage tank 103 is provided with bearing bases that provide rotational support for the high-speed stirring shaft 302, the low-speed rotating shaft 307, and the transmission pinion 304.

[0052] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A boiler scale inhibitor mixing and adding device, comprising a liquid mixing barrel assembly (1), characterized in that, The mixing tank assembly (1) consists of an upper mixing tank (101), a first connecting flange (102), a lower storage tank (103), and a second connecting flange (104). The first connecting flange (102) is fixed to the bottom of the upper mixing tank (101), and the second connecting flange (104) is fixed to the top of the lower storage tank (103). The upper mixing tank (101) is located above the lower storage tank (103) and is connected and fixed to the second connecting flange (104) through the lower storage tank (103). One end of the outer wall of the lower storage tank (103) is fixed with a liquid outlet (109). The liquid outlet (109) is used to communicate with the boiler water system. The upper mixing tank (101) is used to provide space for mixing. The lower storage tank (103) is used to provide storage space for the mixed scale inhibitor solution and to provide the scale inhibitor solution to the boiler water system; A valve assembly (2) is provided between the upper stirring tank (101) and the lower liquid storage tank (103). The valve assembly (2) is used to control the connection and disconnection between the upper stirring tank (101) and the lower liquid storage tank (103). Furthermore, the top of the upper mixing tank (101) is provided with a mixing component (3) extending into the lower storage tank (103), the mixing component (3) including an upper stirring unit and a lower stirring unit; The upper stirring unit is used to perform high-speed stirring inside the upper stirring tank (101), and the lower stirring unit is used to perform low-speed stirring inside the lower storage tank (103).

2. A boiler scale inhibitor mixing and dosing apparatus as claimed in claim 1, wherein, The valve assembly (2) includes a first connecting pipe (201), a second connecting pipe (202), and a solenoid valve (203); The first connecting pipe (201) is fixed to the bottom side of the upper stirring tank (101) and communicates with the inner cavity of the upper stirring tank (101). The second connecting pipe (202) is fixed to the top side of the lower storage tank (103) and communicates with the inner cavity of the lower storage tank (103). The electromagnetic valve (203) is connected between the first connecting pipe (201) and the second connecting pipe (202). The electromagnetic valve (203) is used to realize the connection and cut-off of the first connecting pipe (201) and the second connecting pipe (202).

3. A boiler scale inhibitor mixing and dosing apparatus as claimed in claim 1, wherein, The upper stirring unit includes a drive motor (301) and a high-speed stirring shaft (302). The drive motor (301) is installed at the center of the top of the upper mixing tank (101). The high-speed stirring shaft (302) is fixed to the output end of the drive motor (301) and extends into the interior of the upper mixing tank (101). The drive motor (301) drives the high-speed stirring shaft (302) to rotate for high-speed stirring inside the upper mixing tank (101).

4. A boiler scale inhibitor mixing and dosing apparatus as claimed in claim 3, wherein, The lower agitation unit includes a transmission pinion (304), a polygonal docking column (305), a driven large gear (306), and a low-speed rotating shaft (307). The transmission pinion (304) is rotatably mounted at the center of the top of the lower liquid storage tank (103). The polygonal docking post (305) is fixed to the top of the transmission pinion (304). The driven large gear (306) is distributed on one side of the transmission pinion (304) and meshes with the transmission pinion (304). The low-speed rotating shaft (307) is fixed to the bottom of the driven large gear (306) and extends into the interior of the lower liquid storage tank (103). The bottom of the high-speed stirring shaft (302) extends to the bottom of the upper stirring tank (101) and has a polygonal docking hole (303). The high-speed stirring shaft (302) is sleeved on the outside of the polygonal docking column (305) through the polygonal docking hole (303) to realize the synchronous rotation of the high-speed stirring shaft (302), the transmission pinion (304), and the polygonal docking column (305).

5. The boiler scale inhibitor mixing and adding device according to claim 1, characterized in that, The upper mixing tank (101) and the first connecting flange (102) are each provided with an observation port (105) on one side of the top, and the upper mixing tank (101) and the first connecting flange (102) are each provided with a detection port (106) on the top. The detection port (106) is used to provide an installation position for the water level sensor. The top of the upper mixing tank (101) is also provided with a scale inhibitor inlet (107) and a water inlet (108).

6. A boiler scale inhibitor mixing and dosing apparatus as claimed in claim 4, wherein, Rotary seals are provided at the contact points between the high-speed stirring shaft (302) and the upper stirring tank (101), and between the low-speed rotating shaft (307) and the lower storage tank (103).

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