Liquid level controller
By designing the inner cylinder and float cylinder structure of the liquid level controller, the control accuracy and cost issues of liquid level regulation in the central air conditioning industry have been solved, achieving high-precision, low-failure-rate liquid level regulation, which is suitable for mass production.
Patent Information
- Application Number
- CN202422839937.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-21
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2034-11-21
AI Technical Summary
Existing liquid level regulation technologies in the central air conditioning industry suffer from poor control accuracy, slow response, and high cost. They are particularly poorly adjustable under partial load conditions, and existing devices are complex in structure and inconvenient to maintain.
Design a liquid level controller that adopts an inner cylinder, a first float cylinder, and a second float cylinder structure. Through threaded connection and sealing ring design, it can achieve precise adjustment of liquid level and control flow rate by utilizing the buoyancy of lightweight nylon material. The structure is simple and low cost.
It achieves high precision and low failure rate in liquid level regulation, is easy to install and disassemble, is convenient to maintain, and is suitable for mass production applications.
Smart Images
Figure CN223870988U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of liquid level control technology, specifically a liquid level controller. Background Technology
[0002] Currently, the main methods for regulating liquid levels in the central air conditioning industry include thermostatic expansion valve regulation, fixed orifice plate regulation, and electronic expansion valve + throttling orifice plate regulation. Thermostatic expansion valves throttle, have poor control accuracy, slow response, and poor adjustability under partial load. Thermostatic expansion valves are generally used in products with low control requirements, such as small air-cooled heat pump units, or in places with less partial load. Fixed orifice plates cannot adjust according to load changes. Electronic expansion valve + throttling orifice plate regulation has high manufacturing costs and poor economic efficiency.
[0003] Therefore, based on the above problems, it is necessary for those skilled in the art to develop a mechanical device with a simple structure, low manufacturing cost, and precise adjustment to meet the liquid level adjustment needs during equipment operation, namely, a liquid level controller. Utility Model Content
[0004] In view of the problems in the related technologies, this utility model proposes a liquid level controller to overcome the above-mentioned technical problems existing in the existing related technologies. The purpose of this utility model is to facilitate installation and disassembly, facilitate subsequent maintenance and repair, achieve high adjustment accuracy, low failure rate, and low cost of use, which is conducive to mass production application.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a liquid level controller, comprising an inner cylinder, a first float cylinder sleeved on the outer surface of the inner cylinder, a second float cylinder sleeved on the outer surface of the first float cylinder, a mounting base provided at the bottom of the inner cylinder, a fixing sleeve 1 fixedly sleeved on the outer surface of one top end of the first float cylinder, an annular groove 1 provided on the side of the fixing sleeve 1 away from the first float cylinder, a first sealing ring provided inside the annular groove 1, and a fixing sleeve 2 fixedly connected to the inner wall of the second float cylinder, an annular groove 2 provided on the side of the fixing sleeve 2 away from the second float cylinder, a second sealing ring provided inside the annular groove 2.
[0006] Preferably, a limiting ring is fixedly sleeved on the outer surface of one bottom end of the first float tube, and the first float tube and the limiting ring are an integrated structure.
[0007] Preferably, a retaining ring is fixedly connected to the top of the inner part of the second float tube, and the second float tube and the retaining ring are an integrated structure.
[0008] Preferably, the inner cylinder has a plurality of openings, and the plurality of openings are arranged in a ring structure.
[0009] Compared with the prior art, the beneficial effects of this utility model are:
[0010] This utility model relates to a liquid level controller. It features several openings on an inner cylinder for liquid outflow. A first float and a second float are incorporated. When the refrigerant level in the container rises, the first and second floats rise due to the buoyancy of the liquid; conversely, when the liquid level falls, the first and second floats fall accordingly. This effectively controls the flow rate of liquid entering the next stage container. The controller has a simple structure, low operating cost, and is easy to install and disassemble, facilitating future maintenance and repair. It also offers high adjustment accuracy, a low failure rate, and is suitable for mass production applications. Attached Figure Description
[0011] Figure 1 This is a cross-sectional structural diagram of the present invention;
[0012] Figure 2 This is a schematic diagram of the overall structure of this utility model.
[0013] In the attached diagram, the following are the reference numerals: 1. Inner cylinder; 2. First float cylinder; 3. Second float cylinder; 4. Mounting base; 5. Fixing sleeve one; 6. First sealing ring; 7. Fixing sleeve two; 8. Second sealing ring; 9. Limiting ring; 10. Retaining ring; 11. Opening. Detailed Implementation
[0014] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0015] Example 1
[0016] Please see Figure 1-2 This utility model proposes a technical solution for a liquid level controller: a liquid level controller includes an inner cylinder 3, a first float cylinder 1 fitted on the outer surface of the inner cylinder 3, a second float cylinder 2 fitted on the outer surface of the first float cylinder 1, and a mounting base 4 at the bottom of the inner cylinder 3. Specifically, the mounting base 4 is a flange structure and is welded to the inner cylinder 3. Both the first float cylinder 1 and the second float cylinder 2 are threaded and are connected as a whole by the threads. A fixing sleeve 5 is fixedly fitted on the outer surface of one top end of the first float cylinder 1. An annular groove 1 is formed on the side of the fixing sleeve 1 away from the first float cylinder 1, and a first sealing ring 6 is provided inside the annular groove 1. A fixing sleeve 2 7 is fixedly connected to the inner wall of the second float cylinder 2. An annular groove 2 is formed on the side of the fixing sleeve 2 away from the second float cylinder 2, and a second sealing ring 8 is provided inside the annular groove 2. Specifically, the first sealing ring 6 and the second sealing ring 8 provide a sealing reinforcement effect.
[0017] Please see Figure 1As shown, furthermore, a limiting ring 9 is fixedly sleeved on the outer surface of one bottom end of the first float cylinder 1, and the first float cylinder 1 and the limiting ring 9 are an integrated structure.
[0018] In this embodiment, the connection between the first float tube 1 and the second float tube 2 is facilitated by setting the limiting ring 9.
[0019] Please see Figure 1 As shown, furthermore, a retaining ring 10 is fixedly connected to the top of the inner part of the second float cylinder 2, and the second float cylinder 2 and the retaining ring 10 are an integrated structure.
[0020] In this embodiment, the first float tube 1 and the second float tube 2 are connected by setting the retaining ring 10.
[0021] Please see Figure 1 As shown, furthermore, the inner cylinder 3 has several openings 11, which are arranged in a ring structure.
[0022] In this embodiment, opening 11 is used for liquid outflow.
[0023] The working principle of this utility model:
[0024] The working principle of this liquid level controller (float) mainly relies on the core components of the first float cylinder 1 and the second float cylinder 2. Both the first float cylinder 1 and the second float cylinder 2 are made of lightweight nylon material, whose density is less than that of the liquid they contact; in this case, refrigerant is used. When the refrigerant level in the container rises, the first float cylinder 1 and the second float cylinder 2 will rise due to the buoyancy of the liquid; conversely, when the liquid level falls, the first float cylinder 1 and the second float cylinder 2 will also fall, thereby controlling the flow rate of liquid entering the next stage container.
[0025] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model.
[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0027] 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 liquid level controller, characterized in that, The device includes an inner cylinder (3), on the outer surface of which a first float cylinder (1) is fitted, and on the outer surface of which a second float cylinder (2) is fitted, and at the bottom of the inner cylinder (3) is a mounting base (4). A fixing sleeve (5) is fixedly fitted on the outer surface of the top end of the first float cylinder (1). An annular groove (1) is provided on the side of the fixing sleeve (5) away from the first float cylinder (1). A first sealing ring (6) is provided inside the annular groove (1). A fixing sleeve (7) is fixedly connected to the inner wall of the second float cylinder (2). An annular groove (2) is provided on the side of the fixing sleeve (7) away from the second float cylinder (2). A second sealing ring (8) is provided inside the annular groove (2).
2. The liquid level controller according to claim 1, characterized in that: A limiting ring (9) is fixedly sleeved on the outer surface of one bottom end of the first float tube (1), and the first float tube (1) and the limiting ring (9) are an integrated structure.
3. The liquid level controller according to claim 1, characterized in that: The second float tube (2) has a retaining ring (10) fixedly connected to its inner top end. The second float tube (2) and the retaining ring (10) are an integrated structure.
4. A liquid level controller according to claim 1, characterized in that: The inner cylinder (3) has several openings (11), and the openings (11) are arranged in a ring structure.