Three-way pipeline joint of oil separator
By designing an inverted "Y" shaped tee pipe joint, the problems of symmetry and flow direction matching in the oil separator connection were solved, and the system's efficient operation was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHU SANHUA REFRIGERATION FITTINGS
- Filing Date
- 2025-05-27
- Publication Date
- 2026-05-12
AI Technical Summary
In the existing technology, the connection method of the two sets of oil separators is difficult to meet the requirements of symmetry, flow direction and spatial adaptation, resulting in a decrease in system reliability and efficiency.
The inverted "Y" shaped tee pipe joint, including a lower branch pipe, a three-hole joint, and a straight pipe, optimizes the connection through symmetrical arrangement and fluid self-balancing characteristics, replacing the traditional pipe and valve connection method.
实现了两组油分离器的对称性和流向一致性,降低了气体阻力,提高了系统的可靠性和效率。
Smart Images

Figure CN224230407U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of oil separators, specifically to a three-way pipe joint for an oil separator. Background Technology
[0002] The oil separator is a key component of the compression refrigeration cycle, used to separate the lubricating oil carried in the compressor exhaust to prevent excessive lubricating oil from entering the evaporator / condenser and causing a decrease in heat exchange efficiency. Its oil outlet pipe needs to stably return the separated lubricating oil to the compressor crankcase or oil collector, while also meeting functional requirements such as dynamic oil return control, oil circuit safety assurance, and impurity filtration.
[0003] To ensure system reliability and improve oil handling capacity to adapt to high-load conditions, two sets of parallel oil separators are sometimes installed in the compressor system. The two sets of oil separators need to be connected by pipelines. In this process, considering the symmetry of the two sets of oil separators (to ensure balanced oil return resistance of the two oil separators), flow direction, and spatial compatibility, the structure of the pipeline connecting the two needs to be optimized to meet the working requirements. Utility Model Content
[0004] The purpose of this invention is to provide an oil separator three-way pipe joint and a compressor with the one-way valve to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a three-way pipe joint for an oil separator, the three-way pipe joint including a lower branch pipe, a three-hole joint and a straight pipe, the lower branch pipe including two pipes, pipe one and pipe two, symmetrically arranged on both sides of the three-hole joint, the top of the lower branch pipe being inserted into the three-hole joint, the bottom of the straight pipe being inserted into the three-hole joint, and the bottom of the lower branch pipe being inserted into the top one-way valve of the oil separator.
[0006] Preferably, the bottom of the lower branch pipe is a vertically downward straight section of pipe, and the upper end of the lower branch pipe is an inclined pipe with an angle of 100°-130° between the inclined pipe and the straight section of pipe.
[0007] Preferably, the straight section of the pipe and the inclined section are smoothly connected by an arc section of pipe.
[0008] Preferably, the three-hole connector includes a vertically upward-facing hole one and holes two and three symmetrically arranged on both sides of hole one.
[0009] Preferably, the lower end diameter of the straight pipe is smaller than the upper end diameter, and the upper end diameter is used to connect to external pipes.
[0010] Preferably, the lower branch pipe and the three-hole connector are made of stainless steel.
[0011] Preferably, the straight tube is made of copper.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] In this invention, a three-way pipe joint in the shape of an inverted "Y" is used to connect the two sets of oil separators, replacing the pipe and valve connection method in the prior art, and meeting the requirements of symmetry, flow direction and spatial adaptation of the two sets of oil separators. Attached Figure Description
[0014] Figure 1 This is a structural diagram of the utility model;
[0015] Figure 2 This is a top view of the present invention;
[0016] Figure 3 yes Figure 2 Cross-sectional view of the inner EE section;
[0017] Figure 4 This is an installation diagram of the present invention mounted on an oil separator.
[0018] In the diagram: 1-Lower branch pipe; 11-Pipe 1; 12-Pipe 2;
[0019] 2-Three-hole connector; 21-Hole 1; 22-Hole 2; 23-Hole 3;
[0020] 3-Straight pipe. Detailed Implementation
[0021] 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.
[0022] Please see Figures 1 to 4 This utility model provides a technical solution: a three-way pipe joint for an oil separator. The three-way pipe joint includes a lower branch pipe 1, a three-hole connector 2, and a straight pipe 3. The lower branch pipe 1 includes two pipes, a first pipe 11 and a second pipe 12, symmetrically arranged on both sides of the three-hole connector 2. The top of the lower branch pipe 1 is inserted into the three-hole connector 2, and the bottom of the straight pipe 3 is inserted into the three-hole connector 2. The bottom of the lower branch pipe 1 is inserted into the top one-way valve of the oil separator. The three-way pipe joint is Y-shaped, which can reduce turbulence and local resistance. Moreover, the connection method of the three-hole connector 2 can significantly reduce costs compared to an integrated three-way joint.
[0023] In this embodiment, the bottom of the lower branch pipe 1 is a vertically downward straight section of pipe, and the upper end of the lower branch pipe 1 is an inclined pipe with an angle of 100°-130° between the inclined pipe and the straight section of pipe. The lower branch pipe at this angle reduces local pressure fluctuations through fluid self-balancing characteristics.
[0024] In this embodiment, the straight section of the pipe and the inclined section are smoothly connected by an arc section of pipe, which helps to reduce air resistance.
[0025] In this embodiment, the three-hole connector 2 includes a vertically upward hole 21 and two holes 22 and three holes 23 symmetrically arranged on both sides of the hole 21, which are used to connect the lower branch pipe 1 and the straight pipe 3, respectively.
[0026] In this embodiment, the lower end diameter of the straight pipe 3 is smaller than the upper end diameter. The upper end diameter is used to connect to external pipes. The larger diameter end allows for better connection to external pipes, and the increased diameter also reduces gas resistance.
[0027] In this embodiment, the lower branch pipe 1 and the three-hole connector 2 are made of stainless steel, which provides better strength.
[0028] In this embodiment, the straight pipe 3 is made of copper, which provides better welding performance.
[0029] In this invention, a three-way pipe joint in the shape of an inverted "Y" is used to connect the two sets of oil separators, replacing the pipe and valve connection method in the prior art, and meeting the requirements of symmetry, flow direction and spatial adaptation of the two sets of oil separators.
[0030] As is known from common technical knowledge, this utility model can be implemented through other embodiments that do not depart from its spirit or essential characteristics. Therefore, the disclosed embodiments described above are merely illustrative in all respects and are not the only ones. All modifications within the scope of this utility model or its equivalents are included in this utility model.
Claims
1. A three-way pipe joint for an oil separator, characterized in that: The tee pipe joint includes a lower branch pipe (1), a three-hole joint (2), and a straight pipe (3). The lower branch pipe (1) includes two pipes, pipe one (11) and pipe two (12), which are symmetrically arranged on both sides of the three-hole joint (2). The top of the lower branch pipe (1) is inserted into the three-hole joint (2), the bottom of the straight pipe (3) is inserted into the three-hole joint (2), and the bottom of the lower branch pipe (1) is inserted into the top check valve of the oil separator.
2. The tee pipe joint for an oil separator according to claim 1, characterized in that: The bottom of the lower branch pipe (1) is a vertically downward straight section of pipe, and the upper end of the lower branch pipe (1) is an inclined pipe with an angle of 100°-130° between the inclined pipe and the straight section of pipe.
3. The tee pipe joint for an oil separator according to claim 2, characterized in that: The straight section of the pipe and the inclined section are smoothly connected by an arc-shaped section of pipe.
4. The tee pipe joint for an oil separator according to claim 1, characterized in that: The three-hole connector (2) includes a vertically upward hole one (21) and holes two (22) and three (23) symmetrically arranged on both sides of hole one (21).
5. A three-way pipe joint for an oil separator according to claim 1, characterized in that: The lower end diameter of the straight pipe (3) is smaller than the upper end diameter, and the upper end diameter is used to connect to external pipes.
6. The tee pipe joint for an oil separator according to claim 1, characterized in that: The lower branch pipe (1) and the three-hole connector (2) are made of stainless steel.
7. The tee pipe joint for an oil separator according to claim 1, characterized in that: The straight tube (3) is made of copper.