Automatic alarm device for liquid level of absorption tower
Through the combination of the floating mechanism and the mechanical structure, the problems of blockage, leakage and unstable measurement of the absorption tower liquid level measuring device are solved, and reliable liquid level detection and automatic alarm are achieved in harsh environments.
Patent Information
- Application Number
- CN202510928070.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-07
- Publication Date
- 2025-10-17
AI Technical Summary
Existing liquid level measuring devices in the absorption tower have problems such as blockage, leakage, failure, and unstable measurement signals, resulting in poor measurement accuracy and reliability, and are unable to effectively monitor the liquid level in the absorption tower.
It adopts a combination of floating mechanism, liquid level display mechanism and alarm components to realize liquid level detection and automatic alarm through a simple mechanical structure. The float plate moves up and down with the change of liquid level, and the gear and rack cooperate to convert into liquid level display and alarm.
It realizes reliable detection and automatic alarm of the liquid level of the absorption tower in a high-temperature, high-humidity and corrosive gas environment, reduces maintenance difficulty and improves measurement accuracy and stability.
Smart Images
Figure CN120800528A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of absorption tower liquid level meters, and particularly relates to an automatic alarm device for an absorption tower liquid level. BACKGROUND
[0002] Absorption towers are widely used in industrial production. In a wet flue gas desulfurization system, the liquid level of the absorption tower is an important operating parameter. If the liquid level of the absorption tower is too high, the reaction liquid will overflow the absorption tower, which not only causes waste of the reaction liquid and increases operating costs, but also can cause environmental pollution accidents. If the liquid level of the absorption tower is too low, the amount of reaction liquid in the absorption tower is insufficient, which cannot meet the requirement of sufficient contact and reaction between flue gas and the reaction liquid, and causes a decrease in desulfurization efficiency, so that SO2 in the flue gas cannot be effectively removed, and the content of SO2 in the discharged flue gas exceeds the standard, which causes atmospheric environmental pollution.
[0003] Because of the importance of the liquid level of the absorption tower to the operation of the wet flue gas desulfurization system, a reliable liquid level measuring device is needed to monitor the liquid level in the absorption tower. Because the environment in the absorption tower is high temperature, high humidity and full of corrosive gas, the working environment is harsh, therefore, an automatic alarm device for the liquid level of the absorption tower is provided, which reduces the influence of environmental factors on the stability of the device through a relatively simple mechanical structure, and realizes detection and automatic alarm of the liquid level of the absorption tower.
[0004] At present, commonly used liquid level measuring devices include differential pressure type liquid level meters, float ball type liquid level meters, radar liquid level meters and ultrasonic liquid level meters. However, the existing liquid level measuring devices have the following defects in the measurement of the liquid level of the absorption tower: the differential pressure type liquid level meter needs to install a pressure lead pipe on the absorption tower, the pressure lead pipe is prone to blockage, leakage and other problems, which increases the difficulty of maintenance; the mechanical structure of the float ball type liquid level meter is relatively complex, and is prone to failure in a harsh working environment (such as high temperature, high humidity and corrosive gas); the radar liquid level meter can be disturbed when measuring a liquid containing a large amount of solid particles or foam, which causes the measurement signal to be unstable and affects the reliability of the measurement result; the presence of flue gas in the absorption tower can interfere with the propagation of ultrasonic waves, which reduces the measurement accuracy.
[0005] In view of the above defects, the present application provides an automatic alarm device for the liquid level of the absorption tower, which realizes detection and automatic alarm of the liquid level of the absorption tower through a relatively simple mechanical structure. SUMMARY
[0006] In view of the defects of the above or prior art liquid level meters, the present application is proposed.
[0007] Therefore, the purpose of the present application is to provide an automatic alarm device for the liquid level of the absorption tower.
[0008] To solve the above technical problems, the present application provides the following technical solutions: a floating mechanism, comprising a floating plate, a lifting mechanism arranged on the floating plate, and
[0009] A liquid level display mechanism, comprising a transmission component, the transmission component being engageable with the lifting mechanism; and an alarm component arranged on the side wall of the absorption tower, the transmission component connecting the lifting mechanism and the alarm component.
[0010] As a preferred scheme of the automatic alarm device for the liquid level of the absorption tower, the lifting mechanism comprises a support, the support being vertically fixed to the top surface of the floating plate, and a rack being fixedly connected to the support.
[0011] As a preferred scheme of the automatic alarm device for the liquid level of the absorption tower, the lifting mechanism further comprises a limiting arm, the limiting arm being symmetrically arranged, one end of the limiting arm being fixedly connected to the side wall of the absorption tower, and the other end of the limiting arm being respectively provided with a guide block, the guide block being adapted to a sliding groove arranged on both sides of the support.
[0012] As a preferred scheme of the automatic alarm device for the liquid level of the absorption tower, the transmission component comprises a hinged plate, the hinged plate being fixedly connected to the side wall of the absorption tower.
[0013] As a preferred scheme of the automatic alarm device for the liquid level of the absorption tower, a connecting shaft is hingedly arranged in the hinged plate, a gear is arranged at one end of the connecting shaft, and the gear is engaged with the rack.
[0014] As a preferred scheme of the automatic alarm device for the liquid level of the absorption tower, the transmission component further comprises a swing arm, the swing arm being vertically fixed to the connecting shaft, and a guide column being arranged on the swing arm.
[0015] As a preferred scheme of the automatic alarm device for the liquid level of the absorption tower, the alarm component comprises a display window, the display window being transparent and arranged on a window arranged on the side wall of the absorption tower.
[0016] As a preferred scheme of the automatic alarm device for the liquid level of the absorption tower, symmetric limiting blocks are arranged in the display window, the limiting blocks being arranged in warning colors, and proximity switches being respectively arranged on opposite sides of the limiting blocks.
[0017] As a preferred scheme of the automatic alarm device for the liquid level of the absorption tower, the alarm component further comprises an indication plate, the indication plate being hingedly arranged on the display window, and the indication plate being adapted to move between the limiting blocks.
[0018] As a preferred scheme of the automatic alarm device for the liquid level of the absorption tower, wherein: the alarm component further comprises a driving arm, the driving arm is fixedly connected with the hinged end of the indicating plate, and an opening is arranged at the end of the driving arm away from the indicating plate, and the opening extends inward along the axial direction of the driving arm to form a driving groove.
[0019] The automatic alarm device for the liquid level of the absorption tower has the following beneficial effects: the device as a whole can move up and down with the change of the liquid level through the arrangement of the floating plate, the up-and-down movement of the lifting mechanism is converted into the liquid level alarm display of the liquid level display mechanism through the cooperation of the gear and the rack, and the device can continuously alarm after the liquid level exceeds the alarm range through the cooperation of the guide column and the driving groove. BRIEF DESCRIPTION OF DRAWINGS
[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.
[0021] Figure 1 It is a whole schematic view of the automatic alarm device for the liquid level meter of the absorption tower.
[0022] Figure 2 It is a structural schematic view of the floating mechanism and the rack.
[0023] Figure 3 It is a structural schematic view of the indicating plate located at the right side limit block.
[0024] Figure 4 It is a schematic view of the guide column and the driving groove disengaged when the indicating plate is located at the right side limit block.
[0025] Figure 5 It is a structural schematic view of the indicating plate located at the left side limit block.
[0026] Figure 6 It is a schematic view of the guide column and the driving groove disengaged when the indicating plate is located at the left side limit block.
[0027] Figure 7 It is a structural schematic view of the device and the side wall of the absorption tower.
[0028] Figure 8 It is a schematic view of the guide block and the sliding groove cooperation structure. DETAILED DESCRIPTION
[0029] In order to make those skilled in the art better understand the present application, the present application will be further described in detail in combination with specific embodiments and drawings.
[0030] The terms used in the present application are those general terms currently widely used in the art in consideration of the functions of the present application, but the terms can vary according to the intention of those of ordinary skill in the art, precedents, or new technology in the art. Also, specific terms can be selected by the applicant, and in this case, the detailed meaning thereof will be described in the detailed description of the present application. Therefore, the terms used in the specification should not be understood as simple names, but based on the meaning of the terms and the overall description of the present application.
[0031] Referring to Figure 1 , the embodiment provides an automatic alarm device for absorption tower liquid level, comprising a floating mechanism 100 capable of floating on the liquid surface in the absorption tower, following the rise and fall of the liquid surface, moving up and down; the floating mechanism 100 is connected with a liquid level display mechanism 200, which can convert the up and down displacement of the floating mechanism 100 into the display window 202c for display, and if the up and down displacement of the floating mechanism 100 exceeds the limit value, the display mechanism 200 will issue an alarm.
[0032] As an optional embodiment, referring to Figure 1 , the floating mechanism 100 comprises a floating plate 101, the material of the floating plate 101 is selected to be less than the density of the reaction liquid in the absorption tower, so that the floating plate 101 always floats on the surface of the reaction liquid, avoiding the corrosion of the floating plate 101 by the reaction liquid, and the floating plate 101 is subjected to surface corrosion prevention treatment.
[0033] The floating plate 101 is provided with a lifting mechanism 102, and the lifting mechanism 102 comprises a support 102a vertically fixed to the top surface of the floating plate 101, and a rack 102b bolted to the support 102a, the height of the rack 102b being consistent with the height of the support 102a; here, the shape of the support 102a is not specifically limited, as long as it can support the rack 102b and fixedly connect the rack 102b with the floating plate 101.
[0034] The lifting mechanism 102 further comprises a limiting arm 102c, the limiting arm 102c being symmetrically provided as two, one end of the limiting arm 102c being fixedly connected in the side of the absorption tower, the other end of the limiting arm 102c being respectively provided with a guide block 102d, the limiting arm 102c and the guide block 102d being L-shapedly connected, the guide block 102d being adapted to the slide groove 102e provided on both sides of the support 102a, referring to Figure 8 When the support 102a moves up and down with the floating plate 101, the slide groove 102e slides up and down relative to the guide block 102d, so that the support 102a moves up and down more stably.
[0035] As an optional embodiment, referring to Figure 3, the liquid level display mechanism 200 includes transmission component 201 and alarm component 202, transmission component 201 can be engaged with lifting mechanism 102; alarm component 202 is arranged on the side of the absorption tower m, and transmission component 201 converts the up-down position change of lifting mechanism 102 to alarm component 202 for display.
[0036] Specifically, transmission component 201 includes a hinged plate 201e, which is fixedly connected to the side of the absorption tower m, and a through hole is formed in the hinged plate 201e, referring to Figure 4 And Figure 7 .
[0037] The through hole in the hinged plate 201e is used to install a connecting shaft 201b, one end of the connecting shaft 201b adjacent to the side of the absorption tower m is provided with a gear 201a, the gear 201a is engaged with the rack 102b, and when the rack 102b moves up and down, the gear 201a is driven to rotate counterclockwise or clockwise along the through hole in the hinged plate 201e.
[0038] The other end of the connecting shaft 201b is fixedly provided with a swing arm 201c, the swing arm 201c is perpendicular to the connecting shaft 201b, and the swing arm 201c is fixedly provided with a guide column 201d at an end away from the connecting shaft 201b, the guide column 201d can rotate synchronously with the gear 201a.
[0039] The alarm component 202 includes a display window 202c made of transparent material and installed on the window formed on the side of the absorption tower m, limit blocks 202d are symmetrically installed on both sides of the display window 202c, the limit blocks 202d are set to warning color, and proximity switches are respectively arranged on the opposite sides of the limit blocks 202d, when the liquid level of the reaction liquid reaches the upper and lower limits, the indicating plate 202b will be in contact with the corresponding limit block 202d, triggering the proximity switch to alarm, and the position of the indicating plate 202b can be observed through the display window 202c.
[0040] One end of the indicating plate 202b is hingedly connected to the bottom of the display window 202c, the indicating plate 202b can reciprocally swing relative to the hinged point, and when it swings to contact the limit block 202d, it stops swinging, until the liquid level moves reversely, the indicating plate 202b swings reversely, and when it contacts the limit block 202d on the other side, it stops swinging again.
[0041] The hinged end of the indicating plate 202b is fixedly connected with a driving arm 202e, one end of the driving arm 202e away from the indicating plate 202b is provided with an opening, the opening extends inward along the axial direction of the driving arm 202e to form a driving groove 202a, and the opening at one end of the driving groove 202a is provided in a shape facilitating the sliding of the guide column 201d into or out of the driving groove 202a, so that the guide column 201d is out of contact with the driving groove 202a.
[0042] The working principle of the device is introduced as follows:
[0043] The device is installed in front of the absorption tower to adjust the liquid level in the absorption tower to the middle level. After the installation of the device, the gear 201a is located at the middle part of the rack 102b, and the indicator plate 202b is indicated in the middle part of the display window 202c, as shown in Figure 1 、 Figure 2 and Figure 7 .
[0044] When the liquid level drops, the gear 201a rotates counterclockwise, the guide column 201d rotates counterclockwise with the gear 201a, the guide column 201d pushes the driving groove 202a to rotate clockwise relative to the hinge joint of the indicator plate 202b and the display window 202c, the indicator plate 202b rotates clockwise with the driving groove 202a, until the indicator plate 202b abuts against the right limiting block 202d, the right limiting block sends a high liquid level alarm, as shown in Figure 3 ; as the liquid level gradually rises, the guide column 201d continuously rotates counterclockwise and slides out of the driving groove 202a, as shown in Figure 4 , the indicator plate 202b stays against the right limiting block 202d, so that the high liquid level alarm continues, and the rotation of the indicator plate 202b to the high liquid level alarm can also be observed by artificial inspection.
[0045] When the liquid level drops, the gear 201a rotates clockwise, the guide column 201d rotates clockwise with the gear 201a, the guide column 201d slides into the driving groove 202a again, the guide column 201d pushes the driving groove 202a to rotate counterclockwise relative to the hinge joint of the indicator plate 202b and the display window 202c, the indicator plate 202b rotates counterclockwise with the driving groove 202a, until the indicator plate 202b abuts against the left limiting block 202d, the left limiting block sends a low liquid level alarm, as shown in Figure 5 ; as the liquid level gradually drops, the guide column 201d continuously rotates clockwise and slides out of the driving groove 202a, as shown in Figure 6 , the indicator plate 202b stays against the left limiting block 202d, so that the low liquid level alarm continues, and the rotation of the indicator plate 202b to the low liquid level alarm can also be observed by artificial inspection.
[0046] The aforementioned clockwise, counterclockwise, and up, down, left, right, high, low, and other direction descriptions all refer to the relative directions in the accompanying Figure 2 .
[0047] Finally, it should be pointed out that the methods and devices described in detail above are only embodiments, and those skilled in the art can modify these embodiments in different ways without departing from the scope of the present application.
Claims
1. An automatic alarm device for the liquid level of an absorption tower, characterized by: include, A floating mechanism (100), the floating mechanism (100) comprising a floating plate (101), a lifting mechanism (102) being provided on the floating plate (101); and, A liquid level display mechanism (200) includes a transmission component (201), the transmission component (201) being engageable with the lifting mechanism (102); and an alarm component (202), the alarm component (202) being arranged on the side wall (m) of the absorption tower, and the transmission component (201) connecting the lifting mechanism (102) and the alarm component (202).
2. The automatic alarm device for the liquid level of the absorption tower according to claim 1, characterized in that: The lifting mechanism (102) comprises a bracket (102a), the bracket (102a) is vertically fixed to the top surface of the floating plate (101), and a rack (102b) is fixedly connected to the bracket (102a).
3. The automatic alarm device for the liquid level of the absorption tower according to claim 2, characterized in that: The lifting mechanism (102) further comprises a limiting arm (102c), wherein the limiting arm (102c) is symmetrically arranged, one end of the limiting arm (102c) is fixedly connected to the side wall (m) of the absorption tower, and the other end of the limiting arm (102c) is respectively provided with a guide block (102d), and the guide block (102d) is adapted to the slide grooves (102e) provided on both sides of the bracket (102a).
4. The automatic alarm device for the liquid level of the absorption tower according to claim 2 or 3, characterized in that: The transmission component (201) comprises a hinged plate (201e), and the hinged plate (201e) is fixedly connected to the side wall (m) of the absorption tower.
5. The automatic alarm device for the liquid level of the absorption tower according to claim 4, characterized in that: A connecting shaft (201b) is hingedly provided inside the hinge plate (201e), a gear (201a) is provided at one end of the connecting shaft (201b), and the gear (201a) is engaged with the rack (102b).
6. The automatic alarm device for the liquid level of the absorption tower according to claim 5, characterized in that: The transmission component (201) further comprises a swing arm (201c), wherein the swing arm (201c) is vertically fixed to the connecting shaft (201b), and a guide column (201d) is provided on the swing arm (201c).
7. The automatic alarm device for the liquid level of an absorption tower according to any one of claims 1 to 3, 5, and 6, characterized in that: The alarm component (202) comprises a display window (202c), which is transparent and arranged on a window opened on the side wall (m) of the absorption tower.
8. The automatic alarm device for the liquid level of the absorption tower according to claim 7, characterized in that: Symmetrical limit blocks (202d) are provided in the display window (202c), the limit blocks (202d) are set in a warning color, and proximity switches are respectively provided on opposite sides thereof.
9. The automatic alarm device for the liquid level of the absorption tower according to claim 8, characterized in that: The alarm component (202) further comprises an indicator plate (202b), the indicator plate (202b) is hinged to the display window (202c), and the indicator plate (202b) is suitable for moving between the limit blocks (202d).
10. The automatic alarm device for the liquid level of the absorption tower according to claim 9, characterized in that: The alarm component (202) further comprises a driving arm (202e), wherein the driving arm (202e) is fixedly connected to the hinged end of the indicator plate (202b), and an end of the driving arm (202e) away from the indicator plate (202b) is provided with an opening, and the opening extends inwardly along the axial direction of the driving arm (202e) to form a driving slot (202a).