Steam boiler with dosing device

Abstract

The utility model relates to the technical field of steam boilers, in particular to a steam boiler with a dosing device, which comprises a boiler body, a combustion chamber and a heating chamber are arranged in the boiler body, a plurality of heat conducting columns connected with the combustion chamber are arranged in the heating chamber, and a steam outlet pipe for discharging steam is arranged on the heating chamber. A heating chamber is arranged in the boiler body, a chemical adding device is arranged on the boiler body, a chemical outlet pipe matched with the heating chamber is arranged at the lower end of the chemical adding device, a control valve is arranged on the chemical outlet pipe, a water inlet pipe and a chemical inlet are arranged on the chemical adding device, and a stirring mechanism is further arranged on the chemical adding device. The chemical solution in the chemical adding device is stirred and mixed, effective substances of the chemical solution are prevented from precipitating and layering, and therefore it is guaranteed that the effective substances added into the boiler are constant in amount, boiler scale can be thoroughly removed, and residual scale is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of steam boilers, in particular to a steam boiler with a dosing device. Background Art

[0002] A steam boiler refers to a boiler device for producing steam. It belongs to special equipment. Different from an atmospheric pressure boiler, a steam boiler must be accompanied by boiler procedures when leaving the factory. The boiler procedures include a boiler body drawing, an installation drawing, an instrument valve drawing, a pipeline drawing, an inspection certificate, etc. Steam boilers can be divided into electric steam boilers, oil-fired steam boilers, gas-fired steam boilers, etc. according to the fuel; steam boilers can be divided into manually fired steam boilers and fully automatic chain-fired steam boilers according to the fuel supply method; according to the structure, they can be divided into vertical steam boilers and horizontal steam boilers. Most small steam boilers are single- or double-pass vertical structures, and most large steam boilers are three-pass horizontal structures.

[0003] After long-term use of a steam boiler, scale will be generated inside. The accumulation of scale not only reduces the water capacity of the steam boiler, but also reduces the heat transfer efficiency and increases the energy consumption of the steam boiler. In order to remove scale, scale removal agents are usually added to the steam boiler. For example, Chinese Patent Publication No. CN212565728U discloses "a quantitative dosing device for internal scale removal of a steam boiler", which is installed between a flange and a medicine pumping pump body through fixing screws. The left end face of the filter pipe is fixed to the right end face of the flange by welding, and the right end face of the filter pipe is installed on the left end face of the medicine pumping pump body through fixing screws. This design realizes the filtration of the liquid medicine through the filter pipe while the outer pipe prevents the leakage of the liquid medicine. The outer pipe can be quickly installed or removed through the fixing screws, so as to clean the filter pipe. Since there are four impurity removal grooves, and the four impurity removal grooves are symmetrically distributed on the upper and lower sides of the filter pipe;

[0004] However, in actual use, when the liquid medicine is pre-prepared and stored, the effective substances are prone to precipitate and stratify. The solution in the lower layer contains more scale removal substances than the upper layer solution. When the same amount of liquid medicine is added by the dosing device, the scale removal effect is quite different, which easily leads to incomplete removal of the scale in the boiler and residues. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the problems in the prior art that when the liquid medicine is stored, the effective substances precipitate and stratify, which easily leads to incomplete removal of the scale in the boiler and residues, etc., and to propose a steam boiler with a dosing device.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] Design a steam boiler with a chemical dosing device, including a boiler body. A combustion chamber and a heating chamber are arranged inside the boiler body. A plurality of heat conduction columns connected to the combustion chamber are arranged inside the heating chamber. An outlet pipe for discharging steam is arranged on the heating chamber;

[0008] A chemical dosing device is arranged on the boiler body. A medicine outlet pipe matched with the heating chamber is arranged at the lower end of the chemical dosing device. A control valve is arranged on the medicine outlet pipe. A water inlet pipe and a medicine inlet are arranged on the chemical dosing device. A stirring mechanism is also arranged on the chemical dosing device.

[0009] Further, the stirring mechanism includes a stirring blade rotatably arranged inside the chemical dosing device. A motor power-connected to the stirring blade is arranged on the chemical dosing device.

[0010] Further, a connecting arm is rotatably arranged on the medicine inlet. A sealing cover is rotatably arranged on the connecting arm. The lower end of the sealing cover is in contact with the medicine inlet.

[0011] Further, a connecting frame is fixedly arranged at one end of the connecting arm. A threaded column is rotatably arranged on the medicine inlet. The threaded column is inserted into the connecting frame. A hand-tightening nut threadedly connected to the threaded column and abutting against the connecting frame is arranged on the threaded column.

[0012] Further, a support ring is arranged inside the medicine inlet. A filter cylinder is movably inserted into the medicine inlet. Two support parts matched with the support ring are fixedly arranged on the filter cylinder.

[0013] Further, a connecting rod is arranged between the two support parts. A limiting plate matched with the support part is fixedly arranged on the inner wall of the medicine inlet. Positioning holes are formed in the support parts. Positioning beads matched with the positioning holes are arranged on the limiting plates.

[0014] The beneficial effects of a steam boiler with a chemical dosing device proposed by the present utility model are as follows:

[0015] In the present utility model, by arranging a stirring mechanism inside the chemical dosing device, the liquid medicine solution inside the chemical dosing device is stirred and mixed, preventing the effective substances in the liquid medicine solution from precipitating and stratifying, thereby ensuring a constant amount of effective substances added into the boiler, being able to completely remove the boiler scale and avoiding residual scale;

[0016] Secondly, in the present utility model, the solid medicine is sent into the chemical dosing device through the medicine inlet for mixing, avoiding uneven liquid medicine due to undissolved particles when directly adding, ensuring the uniform distribution of effective substances in the liquid medicine, and preventing impurities in the medicine from entering the boiler and affecting the normal use of the boiler by arranging the filter cylinder. Description of the Drawings

[0017] Figure 1 The structural schematic diagram of a steam boiler with a chemical dosing device proposed by the present utility model;

[0018] Figure 2 The structural schematic diagram of the heating chamber of the present utility model;

[0019] Figure 3 The enlarged structural schematic diagram of area A of the present utility model;

[0020] Figure 4 The enlarged structural schematic diagram of area B of the present utility model;

[0021] Figure 5 The structural schematic diagram of the stirring blade of the present utility model.

[0022] In the figure: 1. Boiler body; 2. Combustion chamber; 3. Heating chamber; 4. Heat conduction column; 5. Steam outlet pipe; 6. Chemical dosing device; 61. Water inlet pipe; 62. Chemical inlet; 621. Connecting arm; 622. Sealing cover; 623. Connecting frame; 624. Threaded column; 625. Hand-tightening nut; 626. Support ring; 627. Limiting plate; 628. Positioning glass bead; 7. Chemical outlet pipe; 8. Stirring mechanism; 81. Stirring blade; 82. Motor; 9. Filter cylinder; 91. Support part; 92. Connecting rod. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0024] Referring to Figures 1-5 , a steam boiler with a chemical dosing device includes a boiler body 1, a combustion chamber 2 and a heating chamber 3 are arranged in the boiler body 1, a plurality of heat conduction columns 4 connected to the combustion chamber 2 are arranged in the heating chamber 3, and a steam outlet pipe 5 for discharging steam is arranged on the heating chamber 3;

[0025] A chemical dosing device 6 is arranged on the boiler body 1, a chemical outlet pipe 7 matching with the heating chamber 3 is arranged at the lower end of the chemical dosing device 6, a control valve is arranged on the chemical outlet pipe 7, a water inlet pipe 61 and a chemical inlet 62 are arranged on the chemical dosing device 6, and a stirring mechanism 8 is also arranged on the chemical dosing device 6.

[0026] In the utility model, the aqueous solution of the medicine in the dosing device 6 is stirred and mixed by the stirring mechanism 8 provided in the dosing device 6, so as to prevent the effective substances in the aqueous solution from precipitating and stratifying, thereby ensuring the constant amount of effective substances added to the boiler, being able to completely remove the boiler scale and avoid the residual scale. The solid medicine is directly fed into the dosing device 6 for mixing through the medicine inlet, so as to avoid the insufficient scale removal caused by the direct addition of the medicine which is uneven or has insufficient medicinal strength due to the presence of undissolved particles, thereby ensuring the uniform distribution of the effective substances in the medicine.

[0027] Furthermore, in the present embodiment, the stirring mechanism 8 includes a stirring blade 81 rotatably disposed in the dosing device 6, and the dosing device 6 is provided with a motor 82 that is motively connected to the stirring blade 81. The stirring blade 81 is driven by the motor 82 to rotate and mix the solution in the dosing device 6, so that the pharmaceutical particles are quickly dissolved and mixed, and as the mixing proceeds, the components in the solution gradually become uniform.

[0028] Furthermore, in the present embodiment, a connecting arm 621 is rotatably provided on the drug inlet 62, and a sealing cover 622 is rotatably provided on the connecting arm 621, and the lower end of the sealing cover 622 is in contact with the drug inlet 62. The sealing cover 622 is provided to prevent the internal solution from splashing out during mixing to pollute the environment and avoid waste.

[0029] It should be noted that, in the present embodiment, a connecting frame 623 is fixedly provided at one end of the connecting arm 621, and a threaded column 624 is rotatably provided on the drug inlet 62. The threaded column 624 is plugged into the connecting frame 623, and a hand-tightening nut 625 is threadedly connected to the threaded column 624 and abuts against the connecting frame 623. When the sealing cover 622 is fixed, the hand-tightening nut 625 is rotated to abut against the connecting frame 623. The connecting frame 623 drives the connecting arm 621 to press down the sealing cover 622, so that the sealing cover 622 is tightly abutted and sealed against the drug inlet 62, so as to prevent the high-pressure steam inside the steam boiler from being discharged along the drug inlet 62 when adding drugs to the steam boiler.

[0030] In addition, in the present embodiment, a support ring 626 is provided in the drug inlet 62, a filter cartridge 9 is movably inserted in the drug inlet 62, and two support portions 91 cooperating with the support ring 626 are fixedly provided on the filter cartridge 9. Solid medicine is stored in the filter cartridge 9 and gradually dissolved as the solution is stirred, while insoluble impurities remain in the filter cartridge 9 to prevent clogging of the dosing device 6 or the boiler body 1.

[0031] More specifically, in this embodiment, a connecting rod 92 is provided between the two supporting portions 91. A limiting plate 627 that cooperates with the supporting portion 91 is fixedly provided on the inner wall of the medicine inlet 62. Positioning holes are formed in the supporting portions 91, and positioning glass beads 628 that cooperate with the positioning holes are provided on the limiting plate 627. The supporting portion 91 on the filter cartridge 9 is limited by the limiting plate 627 to prevent it from shaking and wearing during stirring. The supporting portion 91 and the filter cartridge 9 are fixed by setting the positioning glass beads 628 to prevent the supporting portion 91 from separating and being misaligned with the limiting plate 627.

[0032] Working mode; during operation, first open the medicine inlet 62 to store solid medicine in the filter cartridge 9. Rotate the hand-tightening nut 625 to make it abut against the connecting frame 623. The connecting frame 623 drives the connecting arm 621 to press down the sealing cover 622, so that the sealing cover 622 tightly abuts against the medicine inlet 62 for sealing. Drive the stirring blade 81 to rotate through the motor 82 to stir and mix the liquid medicine solution in the medicine adding device 6. As the solution is gradually dissolved during stirring, the undissolvable impurities remain in the filter cartridge 9 to prevent the medicine adding device 6 or the boiler body 1 from being blocked. Open the sealing cover 622 to take out the filter cartridge 9 to clean the impurities. After mixing is completed, discharge the required amount of liquid medicine into the boiler body 1 through the medicine outlet pipe 7 in cooperation with the control valve, that is, complete the medicine adding operation.

[0033] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A steam boiler with a chemical dosing device, comprising a boiler body (1), characterized in that, Inside the boiler body (1), a combustion chamber (2) and a heating chamber (3) are provided. Inside the heating chamber (3), a plurality of heat conduction columns (4) connected to the combustion chamber (2) are provided. An outlet pipe (5) for discharging steam is provided on the heating chamber (3). A chemical dosing device (6) is provided on the boiler body (1). A chemical outlet pipe (7) cooperating with the heating chamber (3) is provided at the lower end of the chemical dosing device (6). A control valve is provided on the chemical outlet pipe (7). A water inlet pipe (61) and a chemical inlet (62) are provided on the chemical dosing device (6). A stirring mechanism (8) is further provided on the chemical dosing device (6).

2. The steam boiler with a chemical dosing device according to claim 1, characterized in that: The stirring mechanism (8) includes a stirring blade (81) rotatably arranged inside the chemical dosing device (6). A motor (82) power-connected to the stirring blade (81) is provided on the chemical dosing device (6).

3. The steam boiler with a chemical dosing device according to claim 1, characterized in that: A connecting arm (621) is rotatably arranged on the chemical inlet (62). A sealing cover (622) is rotatably arranged on the connecting arm (621). The lower end of the sealing cover (622) is in contact with the chemical inlet (62).

4. A steam boiler with a chemical dosing device according to claim 3, characterized in that: One end of the connecting arm (621) is fixedly provided with a connecting frame (623). A threaded column (624) is rotatably arranged on the chemical inlet (62). The threaded column (624) is inserted into the connecting frame (623). A hand-tightening nut (625) threadedly connected to the threaded column (624) and abutting against the connecting frame (623) is provided on the threaded column (624).

5. The steam boiler with a chemical dosing device according to claim 1, characterized in that: A support ring (626) is arranged inside the chemical inlet (62). A filter cartridge (9) is movably inserted into the chemical inlet (62). Two support parts (91) cooperating with the support ring (626) are fixedly arranged on the filter cartridge (9).

6. The steam boiler with a chemical dosing device according to claim 5, characterized in that: A connecting rod (92) is arranged between the two support parts (91). A limiting plate (627) cooperating with the support part (91) is fixedly arranged on the inner wall of the chemical inlet (62). Positioning holes are formed in the support parts (91). Positioning beads (628) cooperating with the positioning holes are arranged on the limiting plates (627).

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