Duplex switching valve for compressor oil cooler

Abstract

The utility model belongs to the field of compressors, and discloses a duplex switching valve for a compressor oil cooler, which comprises two three-way valves and a switching mechanism, each three-way valve comprises a valve body and a valve ball, the valve body is provided with a system joint and two oil cooling joints, and the valve ball is provided with a system end channel and two oil cooling end channels which form a three-way structure. The system end channel is communicated with the system connector, a flaring structure with the thick outer portion and the thin inner portion is arranged at the end, facing the system connector, of the system end channel, the outer end aperture of the flaring structure is larger than the aperture of the end, close to the system end channel, of the system connector, and the two oil cooling end channels are communicated with the two oil cooling connectors respectively. According to the utility model, the installation and operation space of the duplex oil cooler is reduced to the greatest extent, no maintenance space is required, the switching function requirement of the duplex oil cooler is met, the operation and maintenance are convenient, and the overall cost of the duplex oil cooler is reduced.

Description

Technical Field

[0001] This utility model relates to the field of compressors, specifically a dual switching valve for compressor oil coolers. Background Technology

[0002] The compressor system collectively includes the compressor, oil station, gas cooler, and motor. The oil station includes structures such as the oil tank, oil mist separator, and dual oil cooler. The switching valve is a key component determining the layout of the dual oil cooler. Existing switching valves have the following problems:

[0003] 1) When rotating the valve core, it can only switch between single-pass and double-pass operation, and cannot adjust the flow area of ​​the oil cooling end channel, thus it cannot adjust the flow rate between single-pass and double-pass operation of the oil cooling.

[0004] 2) The linkage operation of the switching valve is not convenient enough. Utility Model Content

[0005] The purpose of this invention is to provide a dual switching valve for compressor oil coolers to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A dual switching valve for a compressor oil cooler includes two three-way valves and a switching mechanism connected between the two three-way valves. Each three-way valve includes a valve body and a valve ball. The valve body has a system connector and two oil-cooling connectors. The valve ball has a system end channel and two oil-cooling end channels forming a three-way structure. The system end channel communicates with the system connector. The system end channel facing the system connector has an outer, wider, and inner, flared structure. The outer diameter of the flared structure is larger than the diameter of the system connector near the system end channel. The two oil-cooling end channels communicate with two oil-cooling connectors respectively. The diameter of the oil-cooling end channels is the same as the diameter of the corresponding oil-cooling connectors. The two ends of the switching mechanism are connected to the valve balls of the two three-way valves respectively. At least one of the three-way valves has a connecting valve between its two oil-cooling connectors connected by a pipe. The connecting valve controls whether the two oil-cooling connectors are connected.

[0008] Furthermore, the switching mechanism includes a connecting rod and a handle, with both ends of the connecting rod connected to the valve balls of two three-way valves respectively, and the handle connected to the connecting rod.

[0009] Furthermore, the handle can be adjusted to its position in the connecting rod axial direction.

[0010] Furthermore, one end of the handle is locked to the connecting rod by a clamp structure.

[0011] Furthermore, the connecting valve is located outside the valve body.

[0012] Furthermore, the oil cooling joint is a flange pipe, and the connecting valve is connected to the flange pipe via a pipeline.

[0013] Furthermore, the system connector is located at the upper end of the valve body, and the two oil-cooling connectors are located on the left and right sides of the valve body, respectively.

[0014] Furthermore, the connecting valve is a manual valve.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This novel dual-switch valve has the following advantages:

[0017] 1) The system end channel of the valve ball is equipped with a flared structure so that when the valve ball rotates at an appropriate angle, the flow cross section of the system end channel will not change, while the flow area of ​​the oil cooling end channel can be appropriately adjusted from single-pass to double-pass, thereby regulating the flow and optimizing the heat exchange between the double-pass oil cooling and the system.

[0018] 2) The linkage is designed as an adjustable switching linkage structure, which allows the handle position to be adjusted arbitrarily to meet the switching and adjustment requirements at any angle and position. This design enables the switching and adjustment functions of the switching valve to be realized, while also facilitating operator operation. Attached Figure Description

[0019] Figure 1 This is one of the structural schematic diagrams of this utility model.

[0020] Figure 2 This is the second schematic diagram of the structure of this utility model.

[0021] Figure 3 This is one of the cross-sectional views of the installation structure of the valve ball and valve body in this utility model. In the figure, the three-way valve is in a double-connected state.

[0022] Figure 4 This is the second cross-sectional view of the installation structure of the valve ball and valve body in this utility model. In the figure, the three-way valve is in a single-connection state.

[0023] Figure 5 This is a schematic diagram of the structure of the present invention when connected to an oil cooler.

[0024] In the figure: valve body 100, system connector 101, oil cooling connector 102, valve ball 103, system end channel 1030, oil cooling end channel 1031, flared structure 1032, connecting valve 104, connecting rod 105, handle 106, clamp structure 1060. Detailed Implementation

[0025] 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.

[0026] Please see Figures 1-5 A dual switching valve for a compressor oil cooler includes two three-way valves and a switching mechanism connecting the two three-way valves. Each three-way valve includes a valve body 100 and a valve ball 103. The valve body 100 has a system connector 101 and two oil-cooling connectors 102. The valve ball 103 has a system end channel 1030 and two oil-cooling end channels 1031 forming a three-way structure. The system end channel 1030 communicates with the system connector 101. The end of the system end channel 1030 facing the system connector 101 has a flared structure 1300 that is wider at the outside and narrower at the inside. The outer diameter of the flared structure 1300 is larger than that of the system connector. The aperture of the orifice near one end of the system end channel 1030 is 101. The two oil-cooled end channels 1031 are respectively connected to the two oil-cooled connectors 102. The aperture of the oil-cooled end channel 1031 is the same as the aperture of the corresponding oil-cooled connector 102. The two ends of the switching mechanism are respectively connected to the valve balls 103 of the two three-way valves. At least one of the three-way valves has a connecting valve 104 connected between the two oil-cooled connectors 102 through a pipe. The connecting valve 104 is located outside the valve body 100. The connecting valve 104 controls whether the two oil-cooled connectors 102 are connected. The connecting valve 104 is preferably a manual valve, but a solenoid valve can also be used.

[0027] Continue reading Figure 1 and Figure 2 In one embodiment of this utility model, the switching mechanism includes a connecting rod 105 and a handle 106. Both ends of the connecting rod 105 are connected to the valve balls 103 of two three-way valves, respectively. The handle 106 is connected to the connecting rod 105. One end of the handle 106 is locked to the connecting rod 105 via a clamp structure 1060, which is secured with bolts. When the bolts are loosened, the handle 106 can adjust its axial position on the connecting rod 105 via the clamp structure 1060.

[0028] Continue reading Figures 1-4 The system connector 101 is located at the upper end of the valve body 100, and the two oil-cooling connectors 102 are located on the left and right sides of the valve body 100, respectively. Both the oil-cooling connector 102 and the system connector 101 are flanged pipes, and the connecting valve 104 is connected to the flanged pipe of the oil-cooling connector 102 through a pipeline.

[0029] Working Principle: This utility model of a double-switch valve adopts a newly designed three-way valve and a newly designed adjustable switching rod. The adjustable switching rod is connected to two three-way valves through a connecting structure, and the connecting valve is installed on two channels of the valve body. The valve ball adopts a T-slot, and the T-channel port (corresponding to the system pipe joint when double-switched) is designed with an enlarged hole. The valve ball is connected to the adjustable switching rod through a structure. When the switching rod rotates, it can realize two-position switching of oil-cooled single-pass (the two channels of the T-slot form an L-shaped channel) and oil-cooled double-switch (the three channels of the T-slot are respectively connected to two oil coolers and system pipes), as well as a wide range of adjustment between single-pass and double-pass. The handle position of the adjustable switching rod can also realize arbitrary position adjustment between the two three-way valves. When switching to a single oil-cooled channel, before switching or adjusting, the oil cooler is filled with oil through the connecting valve.

[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 double switching valve for a compressor oil cooler, characterized in that, The system includes two three-way valves and a switching mechanism connecting the two three-way valves. Each three-way valve includes a valve body (100) and a valve ball (103). The valve body (100) has a system connector (101) and two oil-cooling connectors (102). The valve ball (103) has a system end channel (1030) forming a three-way structure and two oil-cooling end channels (1031). The system end channel (1030) communicates with the system connector (101). The system end channel (1030) facing the system connector (101) has a flared structure (1300) that is wider on the outside and narrower on the inside. The outer end diameter of (1300) is larger than the diameter of the end of the system connector (101) near the system end channel (1030). The two oil cooling end channels (1031) are respectively connected to the two oil cooling connectors (102). The diameter of the oil cooling end channel (1031) is the same as the diameter of the corresponding oil cooling connector (102). The two ends of the switching mechanism are respectively connected to the valve balls (103) of the two three-way valves. At least one of the three-way valves has a connecting valve (104) connected between the two oil cooling connectors (102) through a pipe. The connecting valve (104) controls whether the two oil cooling connectors (102) are connected.

2. The double switching valve for a compressor oil cooler according to claim 1, characterized in that, The switching mechanism includes a connecting rod (105) and a handle (106). The two ends of the connecting rod (105) are respectively connected to the valve balls (103) of two three-way valves, and the handle (106) is connected to the connecting rod (105).

3. The dual switching valve for a compressor oil cooler according to claim 2, characterized in that, The handle (106) can be adjusted to its position in the axial direction of the connecting rod (105).

4. A double switching valve for a compressor oil cooler according to claim 3, characterized in that, One end of the handle (106) is locked to the connecting rod (105) by a clamp structure (1060).

5. A double switching valve for a compressor oil cooler according to claim 1, characterized in that, The connecting valve (104) is located outside the valve body (100).

6. A double switching valve for a compressor oil cooler according to claim 1, characterized in that, The oil cooling joint (102) is a flange pipe, and the connecting valve (104) is connected to the flange pipe via a pipeline.

7. A double switching valve for a compressor oil cooler according to claim 1, characterized in that, The system connector (101) is located at the upper end of the valve body (100), and the two oil cooling connectors (102) are located on the left and right sides of the valve body (100) respectively.

8. A double switching valve for a compressor oil cooler according to claim 1, characterized in that, The connecting valve (104) is a manual valve.

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