Corrosion and scale inhibitor dosing device with dosing mechanism

Abstract

The utility model relates to a dosing device technical field, especially have quantitative mechanism's corrosion and scale inhibitor dosing device, including medicine tube, the upside of medicine tube is installed with cover portion, the cover portion includes the cover plate, the downside fixedly connected with the gasket of cover plate, the inside of cover plate and gasket is equipped with the installation mouth that sets up longitudinal through -going, the inside of cover plate and gasket is equipped with the guide hole that sets up longitudinal through -going, install the dosing portion at cover portion, the dosing portion includes the bellows fixed in the inside of installation mouth, the upper end fixedly connected with the metering pump that sets up intercommunication of bellows, in the utility model, through setting up cover portion, medicine tube, dosing portion and scale rod etc. Structure makes have quantitative mechanism's corrosion and scale inhibitor dosing device under the premise that without tailoring pipeline, without transparent cylinder wall, without external power supply type liquid level meter, simultaneously completes three functions of depth self -adaptation extraction, real -time visual liquid level and automatic low -level alarm.

Description

Technical Field

[0001] This utility model relates to the field of dosing device technology, specifically to a corrosion and scale inhibitor dosing device with a metering mechanism. Background Technology

[0002] Corrosion and scale inhibitor dosing devices are common auxiliary equipment in circulating cooling water, boiler water, and central air conditioning water systems. Their function is to add corrosion and scale inhibitors to the water in a set amount to inhibit metal corrosion and the precipitation of scale such as calcium carbonate, thereby extending the service life of heat exchange equipment and maintaining the efficient operation of the system.

[0003] Existing quantitative dosing mechanisms generally adopt a fixed structure of "metering pump + extraction pipe + dosing pipe": the metering pump is directly installed on the top of the cartridge, and the extraction pipe is inserted vertically into the bottom of the cartridge. Since the length of the extraction pipe must be strictly matched with the depth of the cartridge, once a cartridge of different height or diameter is changed, the extraction pipe must be recut or replaced. In addition, opaque PE or stainless steel cartridges are widely used in industrial sites, making it impossible to visually observe the liquid level during operation. This makes it difficult for operators to judge the remaining amount of chemical in a timely manner, often resulting in uncontrolled situations such as "pump running dry" or "sudden depletion of chemical." Therefore, how to make the quantitative dosing mechanism compatible with multiple specifications of cartridges and to know the dosage of chemical in the cartridge in real time has become an urgent technical problem to be solved. Therefore, based on the above problems, a corrosion and scale inhibitor dosing device with a quantitative mechanism is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a corrosion and scale inhibitor dosing device with a quantitative mechanism to solve the problems of poor applicability and inability to intuitively judge the liquid level in existing dosing devices, which require the depth of the liquid extraction pipe to match the depth of the dosing cartridge and the dosing cartridge is not transparent.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A corrosion and scale inhibitor dosing device with a metering mechanism includes a cartridge, a cover mounted on the upper side of the cartridge, the cover including a cover plate, a sealing gasket fixedly connected to the lower side of the cover plate, an installation port longitudinally penetrating the inner side of the cover plate and the sealing gasket, a guide hole longitudinally penetrating the inner side of the cover plate and the sealing gasket, a dosing section mounted on the cover, the dosing section including a corrugated pipe fixed inside the installation port, a metering pump fixedly connected to the upper end of the corrugated pipe, a dosing pipe fixedly connected to the upper side of the metering pump, a counterweight plate fixedly connected to the lower outer side of the corrugated pipe inside the cartridge, an annular groove on the outer side of the counterweight plate, a float fixedly connected to the inner side of the annular groove, a scale rod slidably connected to the inner side of the guide hole, the lower end of the scale rod fixedly connected to the upper end face of the counterweight plate, and a control box mounted on the upper side of the cover plate.

[0007] Preferably, a warning sleeve is provided on the outer side of the scale rod, a distance sensor located in front of the scale rod is installed on the upper side of the cover plate, and a buzzer is installed on the upper side of the cover plate.

[0008] Preferably, the lower end face of the sealing gasket is in contact with the upper end face of the cartridge, a counterweight ring is fixedly connected to the upper side of the cover plate, and the inner wall of the guide hole of the sealing gasket is in contact with the outer curved surface of the scale rod.

[0009] Preferably, a replenishment tube is fixedly connected to the right opening of the cover plate and the sealing gasket, and a sealing plug is installed on the upper inner side of the replenishment tube. The replenishment tube is located on the upper side of the cartridge.

[0010] Preferably, the corrugated pipe is a folded telescopic pipe structure, the lower end of the corrugated pipe is lower than the lowest point of the float, and the float is an annular bladder structure.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] In this invention, the structure including a cap, cartridge, dosing section, and graduated rod allows the cap to be pressed against the mouth of cartridges of different diameters under the action of a counterweight ring, forming a seal. The metering pump in the dosing section draws a quantitative amount of liquid medicine through a bellows. As the bellows rises and falls synchronously with the liquid level under the action of the counterweight plate and float, it is pulled open or retracted, always keeping the suction port submerged in the liquid medicine, achieving depth-adaptive pumping. The graduated rod moves with the counterweight plate, allowing the operator to directly read the scale to visually determine the remaining liquid. The device is positioned so that when the warning sleeve descends with the scale rod to align with the distance sensor, a buzzer alarm is immediately triggered, indicating that the liquid level has reached the critical low level. This enables the corrosion and scale inhibitor dosing device with a quantitative mechanism to simultaneously perform three functions: depth adaptive extraction, real-time visible liquid level, and automatic low-level alarm, without the need for pipe cutting, transparent cylinder walls, or external power supply for the liquid level gauge. This solves the problems of poor applicability and inability to intuitively judge the liquid level in existing dosing devices, which require the extraction pipe to match the depth of the dosing cartridge and the cartridge is not transparent. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This utility model Figure 1 A magnified structural diagram at point A;

[0015] Figure 3 This utility model Figure 1 A cross-sectional view of the central structure;

[0016] Figure 4 This is a schematic diagram of the structure of the cover of this utility model;

[0017] Figure 5 This is a partial cross-sectional view of the drug dispensing section of this utility model;

[0018] Figure 6 This is a schematic diagram of the scale rod of this utility model.

[0019] In the diagram: 1. Drug cartridge; 2. Cap; 21. Cover plate; 22. Sealing gasket; 23. Counterweight ring; 24. Mounting port; 25. Guide hole; 26. Replenishment tube; 27. Sealing plug; 3. Dosing section; 31. Corrugated pipe; 32. Metering pump; 33. Dosing tube; 34. Counterweight plate; 35. Ring groove; 36. Float; 4. Scale rod; 5. Warning sleeve; 6. Distance sensor; 7. Buzzer; 8. Control box. Detailed Implementation

[0020] 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.

[0021] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0022] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0023] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0024] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0025] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0026] Please see Figure 1-6 This utility model provides a technical solution:

[0027] A corrosion and scale inhibitor dosing device with a metering mechanism includes a cartridge 1, a cover 2 mounted on the upper side of the cartridge 1, the cover 2 including a cover plate 21, a sealing gasket 22 fixedly connected to the lower side of the cover plate 21, an installation port 24 longitudinally penetrating the inner side of the cover plate 21 and the sealing gasket 22, and a guide hole 25 longitudinally penetrating the inner side of the cover plate 21 and the sealing gasket 22. A dosing part 3 is mounted on the cover 2, the dosing part 3 including a corrugated pipe 31 fixed inside the installation port 24. A metering pump 32 is fixedly connected to the upper end of the corrugated pipe 31 in a communicating manner. A dosing pipe 33 is fixedly connected to the upper side of the metering pump 32 in a communicating manner. A counterweight plate 34 located inside the cartridge 1 is fixedly connected to the lower outer side of the corrugated pipe 31. An annular groove 35 is opened on the outer side of the counterweight plate 34. A float 36 is fixedly connected to the inner side of the annular groove 35. A scale rod 4 is slidably connected to the inner side of the guide hole 25. The lower end of the scale rod 4 is fixedly connected to the upper end face of the counterweight plate 34. A control box 8 is installed on the upper side of the cover plate 21.

[0028] A warning sleeve 5 is fitted around the outside of the scale rod 4. A distance sensor 6 is installed on the upper side of the cover plate 21 in front of the scale rod 4. A buzzer 7 is installed on the upper side of the cover plate 21. This arrangement allows the warning sleeve 5 to move with the scale rod 4. When the warning sleeve 5 descends to align with the distance sensor 6, the buzzer 7 is immediately triggered by the control box 8 to indicate that the liquid level has reached the critical low level. The lower end face of the sealing gasket 22 is in contact with the upper end face of the cartridge 1. A counterweight ring 23 is fixedly connected to the upper side of the cover plate 21. This arrangement allows the cover 2 to be pressed against the mouth of cartridges 1 of different diameters under the action of the counterweight ring 23, forming a seal. The inner wall of the guide hole 25 of the sealing gasket 22 is in contact with the outer curved surface of the scale rod 4. This arrangement allows the sealing gasket 22 to continuously seal the displacement of the scale rod 4. 21. A replenishment tube 26 is fixedly connected to the right side opening of the sealing gasket 22. A sealing plug 27 is installed on the upper inner side of the replenishment tube 26. The replenishment tube 26 is located on the upper side of the cartridge 1. This setting allows the operator to add medicine to the cartridge 1 without moving the cover plate 21. The corrugated pipe 31 is a folded telescopic pipe structure. The lower end of the corrugated pipe 31 is lower than the lowest point of the float 36. This setting allows the lower end of the corrugated pipe 31 to rise and fall synchronously with the liquid level under the action of the counterweight plate 34 and the float 36, so that the lower end of the corrugated pipe 31 always keeps the suction port submerged in the medicine, realizing depth adaptive liquid extraction. The float 36 is an annular tube structure. This setting allows the float 36 to provide the same buoyancy in multiple directions to the counterweight plate 34, so that the counterweight plate 34 remains stable when it moves longitudinally.

[0029] Workflow: The operation of the corrosion and scale inhibitor dosing device with a metering mechanism is as follows: Note 1: All electrical appliances in this application are externally powered and centrally controlled via control box 8; Note 2: The metering mechanism of this application is suitable for applications where the diameter of the cartridge 1 is no larger than the diameter of the cover plate 21, and the cartridge 1 is pre-filled with corrosion and scale inhibitor; Dosing operation: The metering pump 32 is started via control box 8. The metering pump 32 quantitatively extracts the corrosion and scale inhibitor from the cartridge 1 via the bellows 31, and then precisely delivers the agent to the target circulating water system via the dosing pipe 33; During continuous pumping, the liquid level in the cartridge 1 slowly decreases. The counterweight plate 34, relying on the buoyancy of the float 36 and its own weight, remains in contact with the liquid surface and moves down synchronously with the liquid level. The downward movement of the counterweight plate 34 synchronously pulls the bellows 31, causing it to expand step by step, thereby ensuring that the lower suction port of the bellows 31 is always submerged in the liquid, forming a connecting channel that can automatically expand and contract with the liquid level, thus adapting to different liquid levels. The cartridge 1 is at the same depth; the counterweight plate 34 moves down, simultaneously causing the scale rod 4 to move downward. The inspector can directly read the exposed scale on the scale rod 4 to intuitively know the remaining liquid level in the cartridge 1. If the staff fails to inspect in time, when the liquid level drops to the preset danger height, the warning sleeve 5 pre-adjusted on the scale rod 4 descends with the rod to the same level as the distance sensor 6. After the distance sensor 6 detects the distance change, it immediately triggers the buzzer 7 through the control box 8 to issue an audible and visual alarm, indicating that the liquid level in the cartridge 1 is at a critical low level and the agent needs to be replenished immediately. This realizes that the corrosion and scale inhibitor dosing device with a quantitative mechanism can simultaneously complete the three functions of depth adaptive extraction, real-time visible liquid level and automatic low level alarm without cutting the pipeline, without transparent cylinder wall, and without external power supply liquid level gauge. It solves the problem of poor applicability and inability to intuitively judge the liquid level caused by the need for the extraction pipe to match the depth of the cartridge 1 and the fact that the cartridge 1 is not transparent in the existing dosing device.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dosing device for corrosion and scale inhibitors with a metering mechanism, comprising a cartridge (1), characterized in that: A cover (2) is installed on the upper side of the cartridge (1). The cover (2) includes a cover plate (21). A sealing gasket (22) is fixedly connected to the lower side of the cover plate (21). A longitudinally penetrating installation port (24) is opened on the inner side of the cover plate (21) and the sealing gasket (22). A longitudinally penetrating guide hole (25) is opened on the inner side of the cover plate (21) and the sealing gasket (22). A dosing part (3) is installed at the cover (2). The dosing part (3) includes a corrugated pipe (31) fixed inside the installation port (24). The upper end of the corrugated pipe (31) is fixedly connected to... A metering pump (32) is connected in a continuous manner. A dosing pipe (33) is fixedly connected to the upper side of the metering pump (32). A counterweight plate (34) located inside the cartridge (1) is fixedly connected to the lower outer side of the corrugated pipe (31). An annular groove (35) is opened on the outer side of the counterweight plate (34). A float (36) is fixedly connected to the inner side of the annular groove (35). A scale rod (4) is slidably connected to the inner side of the guide hole (25). The lower end of the scale rod (4) is fixedly connected to the upper end face of the counterweight plate (34). A control box (8) is installed on the upper side of the cover plate (21).

2. The corrosion and scale inhibitor dosing device with a metering mechanism according to claim 1, characterized in that: A warning sleeve (5) is fitted on the outside of the scale rod (4), a distance sensor (6) is installed on the upper side of the cover plate (21) in front of the scale rod (4), and a buzzer (7) is installed on the upper side of the cover plate (21).

3. The corrosion and scale inhibitor dosing device with a metering mechanism according to claim 2, characterized in that: The lower end face of the sealing gasket (22) is in contact with the upper end face of the cartridge (1), a counterweight ring (23) is fixedly connected to the upper side of the cover plate (21), and the inner wall of the guide hole (25) of the sealing gasket (22) is in contact with the outer curved surface of the scale rod (4).

4. A corrosion and scale inhibitor dosing device with a metering mechanism according to claim 2, characterized in that: A replenishment tube (26) is fixedly connected to the right side opening of the cover plate (21) and the sealing gasket (22). A sealing plug (27) is installed on the upper inner side of the replenishment tube (26). The replenishment tube (26) is located on the upper side of the cartridge (1).

5. A corrosion and scale inhibitor dosing device with a metering mechanism according to claim 2, characterized in that: The corrugated pipe (31) is a folded telescopic pipe structure. The lower end of the corrugated pipe (31) is lower than the lowest point of the float (36). The float (36) is an annular bladder structure.

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