Dosing device for cleaning incrustation scale
By designing a cone and cyclone system in the boiler dosing device, and separating impurities by cyclone and centrifugal force, the problem of long precipitation and stirring time in the prior art is solved, and the efficiency and effect of scale cleaning are improved.
Patent Information
- Application Number
- CN202420923009.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-04-30
AI Technical Summary
The existing boiler dosing device will produce impurities after mixing the agent with desalinate, resulting in pipe wear and precipitation blockage, and a long stirring time affects the cleaning efficiency.
A dosing device for scale cleaning is designed, including a cone-shaped tube and a drug inlet tube with a cone facing downwards. The pump body is used to accelerate the spraying of the drug liquid to form a cyclone, separate impurities through centrifugal force, and homogenize the drug through the overflow tube. The liquid is injected into the boiler, combining the premix box, agitator and spiral blades to speed up the cyclone and separation effect.
It realizes rapid mixing of the medicinal liquid and effective separation of impurities, avoids wear and blockage caused by impurities entering the boiler, and improves the efficiency of dosing and cleaning effect.
Smart Images
Figure CN222226041U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to a scale cleaning technology, and in particular to a dosing device for scale cleaning. Background Art
[0002] In order to extend the service life of the boiler, prevent scale from adhering to the inner wall, and improve the heat exchange efficiency of the boiler and the inner wall of the pipe, it is necessary to add a variety of agents to the boiler water. Commonly used agents include flocculants, ion exchangers, and desalination agents.
[0003] The existing boiler dosing device dissolves the powdered agent into the desalted water by stirring, and then injects the mixed liquid medicine into the boiler through a water pump, so that the liquid medicine is mixed with the boiler water, and the scale precipitation is removed during the circulation process.
[0004] In the existing boiler dosing device, some impurities will be generated after the mixture of the reagent and desalted water. The impurities will enter the boiler with the liquid medicine and wear the inner wall of the pipe or cause precipitation and blockage. In addition, in the existing boiler dosing device, it takes a long time to stir the reagent when it is dissolved in the desalted water. It can only be injected into the boiler after the stirring is completed, which delays the dosing progress and affects the cleaning efficiency. Utility Model Content
[0005] The present application provides a dosing device for scale cleaning, which is used to solve the problem that the existing boiler dosing device cannot separate impurities in the chemical solution.
[0006] The present application provides a dosing device for scale cleaning, comprising a dosing barrel, in which a conical cylinder with a conical surface facing downward is fixed, a slag discharge port is provided at the lower end of the conical cylinder, and a drug inlet pipe is provided at the upper end to be inserted into the dosing barrel along a tangential direction, a pump body for accelerating the spraying of drug liquid from the drug inlet is installed on the drug inlet pipe, an overflow pipe is vertically provided on the top of the dosing barrel, the overflow pipe is connected to the boiler through a drain pipe, and a slag discharge pipe is provided at the bottom of the dosing barrel.
[0007] Optionally, a premixing box is further included, wherein a drug adding port is provided on the top of the premixing box, a water inlet pipe is connected to the side end, an agitator is installed in the premixing box, and a drug extraction tube on the pump body is inserted into the premixing box.
[0008] Optionally, a water supply pipe is inserted into the side wall of the medicine adding barrel at the upper end of the cone along the tangential direction.
[0009] Optionally, a motor is installed on the top of the overflow pipe, and a rotating shaft vertically inserted into the center of the dosing barrel is fixed on the output shaft of the motor, and a blade for stirring is fixed on the rotating shaft.
[0010] Optionally, a spiral blade with the same direction as the swirl direction is fixed on the rotating shaft.
[0011] Optionally, a blocking net is radially fixed on the inner wall of the dosing barrel at the upper end of the cone.
[0012] Compared with the prior art, the scale cleaning dosing device provided in this application has the following beneficial effects:
[0013] The liquid medicine for cleaning scale quickly enters the medicine adding barrel along the tangent line through the pump body, generating a vortex inside it. The impact of the vortex further mixes the liquid medicine evenly, and separates the impurities with density differences in the cone through centrifugal force. The separated impurities are discharged downward through the slag discharge port, and the homogenized liquid medicine moves upward from the overflow pipe through the discharge pipe into the boiler. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0015] Figure 1 A front view of a scale cleaning dosing device provided in one embodiment of the present application;
[0016] Figure 2 A scale cleaning dosing device provided in an embodiment of the present application Figure 1 A top view of
[0017] Figure 3 A scale cleaning dosing device provided in an embodiment of the present application Figure 1 A cross-sectional view of
[0018] Figure 4 A scale cleaning dosing device provided in an embodiment of the present application Figure 2 A cross-sectional view of
[0019] Figure 5 A schematic diagram of the spiral blades of a scale cleaning dosing device provided in one embodiment of the present application.
[0020] Description of reference numerals:
[0021] Dosing barrel 1; cone 2; slag discharge port 3; drug inlet pipe 4; drug inlet 5; pump body 6; overflow pipe 7; liquid discharge pipe 8; slag discharge pipe 9; water supply pipe 10; motor 11; rotating shaft 12; spiral blade 13; intercepting net 14; premixing box 15; dosing port 16; water inlet pipe 17; agitator 18; drug extraction pipe 19. DETAILED DESCRIPTION
[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application is clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work also fall within the scope of protection of the present application.
[0023] like Figure 1-Figure 5 As shown, an embodiment of the present application provides a dosing device for scale cleaning, including a dosing barrel 1, in which a conical cylinder 2 with a conical surface downward is fixed, a slag discharge port 3 is provided at the lower end of the conical cylinder 2, and a drug inlet pipe 4 inserted into the dosing barrel 1 along a tangential direction is provided at the upper end, a pump body 6 for accelerating the spraying of drug liquid from the drug inlet port 5 is installed on the drug inlet pipe 4, an overflow pipe 7 is vertically provided on the top of the dosing barrel 1, and the overflow pipe 7 is connected to the boiler through a drain pipe 8, and a slag discharge pipe 9 is provided at the bottom of the dosing barrel 1.
[0024] When in use, the liquid medicine for cleaning scale is pressurized by the pump body 6 and enters the medicine adding barrel 1 along the tangent line through the medicine inlet pipe 4 and the medicine inlet port 5. The liquid medicine entering along the tangent line forms a vortex in the medicine adding barrel 1. The impurities with density difference are separated from the liquid medicine by the action of centrifugal force. The impurities are discharged from the slag discharge port 3 downward along the cone 2. The liquid medicine moves upward from the overflow pipe 7 at the upper end to the discharge pipe 8 and flows into the boiler to mix with the boiler water. The impurities discharged from the slag discharge port 3 enter the medicine adding barrel 1 at the lower end of the cone 2 and are finally discharged and processed through the slag discharge pipe 9.
[0025] In this embodiment, the liquid medicine for cleaning scale quickly enters the medicine adding barrel 1 along the tangent through the pump body 6, generating a vortex inside the barrel, and the impact of the vortex further mixes the liquid medicine evenly, and separates impurities with density differences in the cone 2 through centrifugal force. The separated impurities are discharged downward through the slag discharge port 3, and the homogenized liquid medicine moves upward from the overflow pipe 7 through the discharge pipe 8 into the boiler.
[0026] In a possible implementation, a premixing box 15 is further included, the top of which is provided with a drug adding port 16 , the side end of which is connected with a water inlet pipe 17 , an agitator 18 is installed in the premixing box 15 , and the drug extraction pipe 19 on the pump body 6 is inserted into the premixing box 15 .
[0027] The liquid medicine entering the medicine adding tank 1 is premixed in the premixing tank 15. The medicine powder is added to the premixing tank 15 through the medicine adding port 16, and the demineralized water enters the premixing tank 15 through the water inlet pipe 17. The two are stirred and mixed by the agitator 18 in the premixing tank 15 to form liquid medicine. After the pump body 6 extracts the liquid medicine through the medicine extraction pipe 19, it is pressurized and discharged into the medicine adding tank 1 through the medicine inlet pipe 4.
[0028] In a possible implementation, a water supply pipe 10 is inserted into the side wall of the medicine adding barrel 1 at the upper end of the cone 2 along the tangential direction.
[0029] The water supply pipe 10 can be connected with the circulating water of the boiler, and the circulating water of the boiler pipe network can be introduced into the medicine-adding barrel 1. The water supply pipe 10 introduces water into the medicine-adding barrel 1 along the tangential direction, which can not only dilute the liquid medicine, but also accelerate the swirl speed under the impact of the water supply pipe 10. When the circulating water in the boiler pipe network is introduced into the medicine-adding barrel 1, the impurities in the boiler pipe network can be separated and discharged together when the swirl is generated.
[0030] In a possible implementation, a motor 11 is installed on the top of the overflow pipe 7, and a rotating shaft 12 vertically inserted into the center of the dosing barrel 1 is fixed on the output shaft of the motor 11, and a blade for stirring is fixed on the rotating shaft 12.
[0031] The motor 11 drives the stirring blades to rotate in the same direction as the swirl direction through the rotating shaft 12, which can further accelerate the speed of the swirl, increase the centrifugal force, and improve the separation effect. The stirring blades can also further stir the liquid medicine in the center of the swirl.
[0032] In a possible implementation, a spiral blade 13 with the same direction as the swirl direction is fixed on the rotating shaft 12 .
[0033] The spiral blade 13 in the same direction as the swirl can further enhance the swirl effect through its spiral guidance, and has a downward thrust during swirl separation, so that impurities can be discharged more smoothly downward from the slag discharge port 3. Avoid the liquid level at the lower end of the dosing barrel 1 being too high to generate resistance and affect slag discharge.
[0034] In a possible implementation, a blocking net 14 is radially fixed on the inner wall of the dosing barrel 1 at the upper end of the cone 2.
[0035] The blocking net 14 can intercept and break the lumps in the liquid medicine when the liquid medicine swirls. The lumps that swirl rapidly with the liquid medicine can be broken when they hit the blocking net 14, and are dissolved in the liquid medicine during the continuous swirl.
[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A dosing device for scale cleaning, comprising a dosing barrel (1), characterized in that: A cone (2) with a downwardly facing cone surface is fixed in the medicine-adding barrel (1); a slag discharge port (3) is provided at the lower end of the cone (2); a medicine inlet pipe (4) is provided at the upper end and is inserted into the medicine-adding barrel (1) along a tangential direction; a pump body (6) is installed on the medicine inlet pipe (4) for accelerating the spraying of medicine liquid from the medicine inlet port (5); an overflow pipe (7) is vertically provided at the top of the medicine-adding barrel (1); the overflow pipe (7) is connected to the boiler through a liquid discharge pipe (8); and a slag discharge pipe (9) is provided at the bottom of the medicine-adding barrel (1).
2. The scale cleaning dosing device according to claim 1, characterized in that: The invention also comprises a premixing box (15), wherein a drug adding port (16) is provided on the top of the premixing box (15), a water inlet pipe (17) is connected to the side end, an agitator (18) is installed in the premixing box (15), and a drug extraction pipe (19) on the pump body (6) is inserted into the premixing box (15).
3. The scale cleaning dosing device according to claim 2, characterized in that: A water supply pipe (10) is inserted into the side wall of the medicine adding barrel (1) at the upper end of the cone cylinder (2) along the tangential direction.
4. The scale cleaning dosing device according to claim 1, characterized in that: A motor (11) is installed on the top of the overflow pipe (7), and a rotating shaft (12) vertically inserted into the center of the dosing barrel (1) is fixed on the output shaft of the motor (11), and a blade for stirring is fixed on the rotating shaft (12).
5. The scale cleaning dosing device according to claim 4, characterized in that: A spiral blade (13) with the same direction as the swirl direction is fixed on the rotating shaft (12).
6. The scale cleaning dosing device according to any one of claims 1 to 5, characterized in that: A blocking net (14) is radially fixed on the inner wall of the medicine adding barrel (1) at the upper end of the cone cylinder (2).