Automatic liquid level adjusting device for condensation water tank

By combining a magnetic level gauge and a magnetic induction switch into an automatic control system, the problems of large workload and difficulty in timing the operation of condensate pumps due to manual operation have been solved, realizing the automated control of condensate pumps and improving the stability and efficiency of operation.

CN223870989UActive Publication Date: 2026-02-03SHANDONG YANKUANG INT COKING CO LTD
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Patent Information

Application Number
CN202520639489.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-07
Publication Date
2026-02-03
Estimated Expiration
2035-04-07

AI Technical Summary

Technical Problem

The existing condensate pump control method requires manual operation, which results in a heavy workload for operators and makes it difficult to accurately grasp the timing of starting and stopping, posing safety hazards and energy waste.

Method used

By combining a magnetic float level gauge with a magnetic induction switch and a water pump controller, the liquid level in the condensate tank can be automatically adjusted, and the start and stop of the condensate pump can be automatically controlled by the magnetic induction switch and the controller.

Benefits of technology

It improves the automation level, stability and efficiency of the condensate delivery system, reduces the workload and safety hazards of operators, and avoids energy waste.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223870989U_ABST
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Abstract

The utility model belongs to the technical field of condensate pump control equipment, and relates to an automatic liquid level adjusting device for a condensate water tank, which comprises a barrel, a panel is arranged on the side wall of the barrel, scales and a magnetic turning plate are respectively arranged on the panel, a magnetic induction head is arranged at one end of the magnetic turning plate, a sliding groove is arranged on one side of the panel, and a guide rail is arranged on the inner wall of the sliding groove. A magnetic induction switch is arranged in the guide rail, an induction probe is arranged on the inner side of the magnetic induction switch, and a spring wire is led out of the outer side of the magnetic induction switch to be connected to a controller. According to the utility model, the magnetic turning plate liquid level meter is combined with the magnetic induction switch and the water pump controller, so that the on-off of the condensate pump is automatically controlled according to the liquid level of the condensate, the condensate conveying system of the refrigeration station is optimized, the automation level of the condensate conveying of the refrigeration station is improved, and the conveying process of the condensate is more stable and efficient.
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Description

Technical Field

[0001] This utility model belongs to the technical field of condensate pump control equipment, specifically relating to an automatic condensate tank level adjustment device. Background Technology

[0002] During the operation of a refrigeration plant, the condensate pump plays a crucial role in transporting the condensate produced by the chillers to the boiler deaerator for recycling. Currently, the condensate pumps in the refrigeration plant operate in a one-on-one standby mode during normal operation.

[0003] However, the existing control method for condensate pumps has significant drawbacks. It only has a local switch, requiring operators to manually start and stop the pumps. Due to the layout of the refrigeration plant equipment, operators need to frequently climb stairs to perform these actions, greatly increasing their workload. Furthermore, the frequent climbing of stairs poses safety hazards such as slipping and falls, seriously threatening the personal safety of the operators.

[0004] Furthermore, manual control makes it difficult to precisely control the start and stop times of the condensate pump, resulting in excessively long pump operation times and unnecessary energy waste. Therefore, there is an urgent need for an automatic condensate tank level adjustment device to solve these problems. Utility Model Content

[0005] The purpose of this invention is to provide an automatic level adjustment device for condensate tanks. It utilizes the characteristics of a magnetic level gauge, is equipped with a magnetic induction switch and a matching water pump controller, to achieve automatic level adjustment. This solves the problems of existing technologies where manual start-stop operations are labor-intensive, inconvenient, and difficult to accurately control the timing of condensate pump start-stop.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: This utility model provides an automatic level adjustment device for condensate tanks, including a cylinder. A panel is provided on the side wall of the cylinder. The panel is provided with a scale and a magnetic flip plate. A magnetic sensor head is provided at one end of the magnetic flip plate. A sliding groove is provided on the side wall of the magnetic flip plate. A guide rail is provided on the inner wall of the sliding groove. A magnetic induction switch is provided in the guide rail. An induction probe is provided inside the magnetic induction switch. A spring wire is led out from the outside of the magnetic induction switch and connected to the controller.

[0007] Preferably, the upper and lower ends of the cylinder are provided with connecting flanges, and connecting flanges are connected to connecting pipes.

[0008] Preferably, the slide is provided with positioning holes, and locking switches are provided on the positioning holes, with the number of locking switches corresponding to the number of magnetic induction switches.

[0009] Preferably, a magnetic levitation ball is installed inside the cylinder.

[0010] Preferably, the magnetic flips are of a certain number, and the positions of the magnetic flips are set to correspond to the scale positions.

[0011] Preferably, there are two magnetic induction switches, and the number of spring wires is set to correspond to the number of magnetic induction switches.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. This utility model combines a magnetic level gauge with a magnetic induction switch and a water pump controller to automatically control the start and stop of the condensate pump according to the condensate level, thereby optimizing the condensate delivery system of the refrigeration station, improving the automation level of condensate delivery in the refrigeration station, and making the condensate delivery process more stable and efficient.

[0014] 2. This utility model utilizes the characteristics of a magnetic float level gauge, configured with a magnetic induction switch and a matching water pump controller, to achieve self-adjustment of the liquid level. This solves the problems of the existing technology where manual start-stop operation is labor-intensive, inconvenient, and difficult to accurately grasp the timing of starting and stopping the condensate pump. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of a device for automatically adjusting the liquid level in a condensate tank.

[0017] Figure 2 This is a partial structural diagram of an automatic level control device for condensate tanks.

[0018] Figure 3 This is a partial enlarged view of a device for automatically adjusting the liquid level in a condensate tank.

[0019] In the above figures, 1. cylinder, 2. connecting flange, 3. connecting pipe, 4. panel, 5. scale, 6. magnetic flip plate, 7. magnetic sensor head, 8. slide groove, 9. guide rail, 10. magnetic induction switch, 11. induction probe, 12. spring wire, 13. controller, 14. positioning hole, 15. locking switch. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Example 1, such as Figure 1-3 As shown, an automatic liquid level adjustment device for condensate tank includes a cylinder 1, which serves as a container for liquid level detection. The cylinder 1 contains condensate and is made of corrosion-resistant material. It has a stable structure and is suitable for the high temperature and high humidity environment of refrigeration stations.

[0023] A panel 4 is provided on the side wall of the cylinder 1. The panel 4 is provided with a scale 5 and a magnetic flip plate 6. The scale 5 marks the liquid level height, and the magnetic flip plate 6 flips through magnetic coupling to display the real-time liquid level, thereby improving the reliability of liquid level reading. The panel 4 is fixed to the side wall of the cylinder 1 and provides a liquid level visualization interface by supporting the scale 5 and the magnetic flip plate 6.

[0024] A magnetic sensor 7, which is a Hall element, is provided at one end of the magnetic flip plate 6. A slide groove 8 is provided on the side wall of the magnetic flip plate 6, and a guide rail 9 is provided on the inner wall of the slide groove 8. A magnetic induction switch 10 is provided inside the guide rail 9, and a sensing probe 11 is provided inside the magnetic induction switch 10. The magnetic induction switch 10 can slide along the guide rail 9 and be fixed at the set liquid level point. The sensing probe 11 detects the magnetic sensor 7 and triggers a control signal. The position of the magnetic induction switch 10 is adjustable to adapt to different liquid level control requirements.

[0025] A spring wire 12 extends from the outside of the magnetic induction switch 10 and connects to the controller 13. The spring wire 12 connects the magnetic induction switch 10 and the controller 13, transmitting a liquid level signal. The controller 13 controls the start and stop of the condensate pump based on the liquid level signal. The spring wire 12 is tensile-resistant and fatigue-resistant, preventing circuit breakage. The controller 13 realizes the start and stop control of the water pump.

[0026] The specific design of the aforementioned key components will be discussed in detail below:

[0027] The cylinder 1 is equipped with connecting flanges 2 at both the upper and lower ends, and connecting flanges 2 are connected to connecting pipes 3. DN50 standard flanges are welded to the upper and lower ends of the cylinder 1. The flange sealing surfaces are RF type raised faces, and matching metal spiral wound gaskets are used to ensure sealing. The connecting pipe 3 is a short stainless steel pipe, the length of which is customized according to the installation space. Both ends are connected to the cylinder 1 and external equipment through flanges. The diameter of the connecting pipe 3 is the same as the diameter of the cylinder 1.

[0028] The slide 8 is provided with positioning holes 14, and locking switches 15 are provided on the positioning holes 14. The number of locking switches 15 corresponds to the number of magnetic induction switches 10. The slide 8 is made of aluminum alloy profile, and the positioning holes 14 are opened at equal intervals along the length direction. The hole positions correspond to the liquid level value of scale 5. Preferably, there is one positioning hole 14 for every 10mm of liquid level height.

[0029] The locking switch 15 adopts a spring pin structure. After the pin is inserted into the positioning hole 14, it is locked by rotation to prevent the magnetic induction switch 10 from shifting under gravity. Each magnetic induction switch 10 is equipped with an independent locking switch 15, which allows for independent setting of high and low liquid level thresholds, such as an upper limit of 80% liquid level and a lower limit of 20% liquid level. The positioning hole 14 covers the entire range to adapt to different operating conditions.

[0030] The cylinder 1 is equipped with a magnetic levitation ball, which is a hollow stainless steel shell filled with epoxy resin-encapsulated neodymium iron boron permanent magnets. The diameter of the levitation ball matches the inner diameter of the cylinder 1. According to Archimedes' principle, the density of the levitation ball is lower than that of water, and the levitation ball rises and falls sensitively when the liquid level changes.

[0031] The magnetic flip plates 6 are numerous, and their positions correspond to the positions of scale 5. Each magnetic flip plate 6 is a segmented flip-up plate, with each plate mounted on the panel 4 via a rotating shaft. The shaft incorporates a miniature ball bearing to ensure flexible flipping. The mounting positions of the magnetic flip plates 6 are strictly aligned with the millimeter-level markings of scale 5, preferably with one magnetic flip plate 6 corresponding to every 10mm of liquid level height. When the magnetic flip plates 6 interact with the magnetic field of the magnetic levitation ball, they drive the flip plates to rotate 180°, displaying a red / white dual-color indicator. Red represents the filling section, and white represents the empty section, providing a direct indication of the liquid level.

[0032] There are two magnetic induction switches 10, and the number of spring wires 12 corresponds to the number of magnetic induction switches 10. The two magnetic induction switches 10 correspond to the high liquid level and low liquid level control points respectively, and are installed in the preset positioning holes 14 of the slide 8.

[0033] The magnetic induction switch 10 is a normally open reed switch with a sensing distance of 5mm. When the liquid level reaches the set position, the magnetic flap 6 flips, and the magnetic sensor 7 triggers the reed switch to close. The spring wire 12 is a spiral sheathed wire, and each spring wire 12 is individually connected to one magnetic induction switch 10 to the controller 13. The wire length can be stretched up to 1.5 meters to adapt to different installation distances. The controller 13 has a built-in dual-channel relay module. After receiving high / low liquid level signals, it outputs start / stop commands to the condensate pump motor.

[0034] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0035] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An automatic level adjustment device for condensate tanks, characterized in that, The device includes a cylindrical body, on which a panel is provided on the side wall. The panel is provided with a scale and a magnetic flip plate. A magnetic sensor head is provided at one end of the magnetic flip plate. A sliding groove is provided on one side of the panel. A guide rail is provided on the inner wall of the sliding groove. A magnetic induction switch is provided in the guide rail. A sensing probe is provided inside the magnetic induction switch. A spring wire is led out from the outside of the magnetic induction switch and connected to the controller.

2. The automatic level adjustment device for condensate tank according to claim 1, characterized in that, The cylinder is provided with connecting flanges at both the upper and lower ends, and connecting flanges are connected to connecting pipes.

3. The automatic level adjustment device for condensate tank according to claim 1, characterized in that, The slide is provided with positioning holes, and locking switches are provided on the positioning holes. The number of locking switches corresponds to the number of magnetic induction switches.

4. The automatic level adjustment device for condensate tank according to claim 1, characterized in that, The cylinder is equipped with magnetic levitation balls.

5. The automatic level adjustment device for condensate tank according to claim 1, characterized in that, The number of magnetic flips is several, and the positions of the magnetic flips are set to correspond to the scale positions.

6. The automatic level adjustment device for condensate tank according to claim 1, characterized in that, There are two magnetic induction switches, and the number of spring wires corresponds to the number of magnetic induction switches.