Temperature control valve for compressor

Abstract

The utility model discloses a temperature control valve for a compressor. The temperature control valve comprises a valve body; an oil inlet is formed in the top face of the valve body, a hot oil outlet and a cold oil inlet are formed in the same side face of the valve body, and a cold oil outlet is formed in the side face, away from the hot oil outlet and the cold oil inlet, of the valve body. The bottom end of the oil inlet channel communicates with a first oil outlet channel and a second oil outlet channel which communicate with each other, and the oil inlet communicates with the hot oil outlet through the oil inlet channel and the first oil outlet channel. A cold oil channel communicates between the cold oil inlet and the cold oil outlet, the cold oil channel and the second oil outlet channel are arranged in parallel, the cold oil channel obliquely communicates with a communicating channel in the direction away from the cold oil inlet, and the communicating channel communicates with the second oil outlet channel; the valve element is arranged at the joint of the oil inlet channel, the first oil outlet channel and the second oil outlet channel. According to the utility model, the channel of the valve body is rearranged, so that the oil temperature of the compressor can be better regulated and controlled, and the damage of residual hot oil to the main machine of the compressor can be reduced after the valve core of the temperature control valve is closed, so that the normal operation of the compressor is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of temperature control valves, in particular to a temperature control valve for a compressor. Background Art

[0002] Thermostatic valve is an automatic regulating valve, mainly used to control the temperature of fluids (such as water, oil, etc.). Compressors usually also need to use thermostatic valves to adjust the oil temperature to ensure their normal operation. However, when the temperature of the hot oil drops, the thermostatic valve core of the existing compressor will slowly close. At this time, there will be hot oil residue in the oil inlet channel, and it will flow directly into the compressor main engine, causing a temperature surge. The high temperature of the hot oil affects the lubrication of the compressor main engine, which is not conducive to the normal operation of the compressor. Utility Model Content

[0003] In order to overcome the defects of the prior art, a temperature control valve for a compressor is provided, which can solve the problem that after the existing temperature control valve is closed, the hot oil in the oil inlet channel will directly flow into the compressor host, thereby adversely affecting the normal operation of the compressor.

[0004] In order to achieve the above technical effects, the solution provided by the utility model is to provide a temperature control valve for a compressor, which includes:

[0005] Valve body;

[0006] An oil inlet for connecting to an oil and gas barrel is provided on the top surface of the valve body;

[0007] A hot oil outlet and a cold oil inlet for connecting to a cooler are arranged on the side of the valve body on the same side;

[0008] A cold oil outlet for connecting to a filter, arranged on a side of the valve body away from the hot oil outlet and the cold oil inlet;

[0009] An oil inlet channel, wherein a first end of the oil inlet channel is connected to the oil inlet, a second end of the oil inlet channel is connected to a first oil outlet channel and a second oil outlet channel, and the first oil outlet channel is connected to the hot oil outlet;

[0010] A cold oil passage, connected between the cold oil inlet and the cold oil outlet, wherein the cold oil passage is connected with a connecting passage in a direction away from the cold oil inlet, and the connecting passage is connected with the second oil outlet passage;

[0011] A valve core for controlling the opening and closing of the oil inlet passage and the first oil outlet passage and the second oil outlet passage is arranged at the second end of the oil inlet passage.

[0012] Preferably, both ends of the cold oil channel are respectively provided with internal threads, and the communication channel is provided on the channel between the internal threads at both ends of the cold oil channel.

[0013] Preferably, the communication channel extends out of the cold oil channel to form a bypass channel.

[0014] Preferably, the bottom surface of the valve body is provided with a notch for opening the bypass channel.

[0015] Preferably, the second oil outlet channel is arranged horizontally, and the cold oil channel is arranged parallel to the second oil outlet channel.

[0016] The beneficial effect of the utility model is that the temperature control valve for a compressor of the utility model is arranged in a rearranged manner by the channels in the valve body, so that the first end of the connecting channel is connected to the cold oil channel, the second end is connected to the second oil outlet channel, and the connecting channel is arranged obliquely in the direction away from the cold oil inlet, so that the first end of the connecting channel can avoid the interference of the inner thread of the cold oil channel at the cold oil outlet, and the distance between the second end of the connecting channel and the valve core is expanded, so that after the valve core of the temperature control valve is closed, the residual hot oil in the oil inlet channel can flow through the second oil outlet channel for a long distance before flowing into the connecting channel, providing a buffer for the hot oil to flow into the connecting channel, and at the same time extending the overall flow length of the hot oil, so that the hot oil stays in the flow channel for a longer time, so that the hot oil can flow into the compressor main engine at a lower temperature, reducing damage to the compressor main engine. The temperature control valve for a compressor of the utility model is arranged in a rearranged manner by the channels of the valve body, so as to better regulate the oil temperature of the compressor to ensure the normal operation of the compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a schematic diagram of the internal passage of the temperature control valve for the compressor of the utility model.

[0019] Figure 2 It is an overall schematic diagram of the first angle of the temperature control valve for the compressor of the utility model.

[0020] Figure 3 It is an overall schematic diagram of the first angle of the temperature control valve for the compressor of the utility model.

[0021] The corresponding relationship of the numbers in the figure is as follows:

[0022] 1. Valve body; 2. Oil inlet; 3. Hot oil outlet; 4. Cold oil inlet; 5. Cold oil outlet; 6. Oil inlet channel; 7. First oil outlet channel; 8. Second oil outlet channel; 9. Cold oil channel; 901, internal thread; 10. Connecting channel; 11. Valve core chamber; 12. Bypass channel; 13. Notch. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figures 1 to 3 As shown, the embodiment of the utility model provides a temperature control valve for a compressor, comprising a valve body 1, an oil inlet 2, a hot oil outlet 3, a cold oil inlet 4, and a cold oil outlet 5. Among them:

[0025] The oil inlet 2 is arranged on the top surface of the valve body 1, and is used to connect with the oil and gas barrel. The hot oil outlet 3 and the cold oil inlet 4 are arranged on the side of the valve body 1 on the same side, and are respectively connected with the oil inlet 2 and the oil outlet of the cooler. The cold oil outlet 5 is arranged on the side of the valve body 1 away from the hot oil outlet 3 and the cold oil inlet 4, and is used to connect with the filter. The first end of the oil inlet channel 6 is connected to the oil inlet 2, and the second end of the oil inlet channel 6 is connected with the first oil outlet channel 7 and the second oil outlet channel 8, and the first oil outlet channel 7 is connected to the hot oil outlet 3. The cold oil channel 9 is connected between the cold oil inlet 4 and the cold oil outlet 5, and the cold oil channel 9 is obliquely connected with the connecting channel 10 in the direction away from the cold oil inlet 4, that is, the angle between the channel center line of the connecting channel 10 and the center line of the cold oil inlet 4 is an obtuse angle, and the connecting channel 10 is connected with the second oil outlet channel 8. The valve core is arranged at the second end of the oil inlet channel 6, and is used to control the opening and closing of the oil inlet channel 6 and the first oil outlet channel 7 and the second oil outlet channel 8. In this embodiment, the angle between the center line of the communication channel 10 and the center line of the cold oil inlet 4 is 130°, and a valve core cavity 11 is formed at the connection between the second end of the oil inlet channel 6 and the first oil outlet channel 7 and the second oil outlet channel 8, and the valve core can be installed in the valve core cavity 11. The valve core can be a sliding valve type valve core, etc.

[0026] As a preferred embodiment, internal threads 901 are respectively provided at both ends of the cold oil channel 9 to facilitate connection with other channels, and the connecting channel 10 is provided on the channel between the internal threads 901 at both ends of the cold oil channel 9, so that the connecting channel 10 avoids interference with the internal threads 901 at the cold oil outlet 5.

[0027] As a preferred embodiment, the connecting channel 10 extends out of the cold oil channel 9 to form a bypass channel 12. To facilitate the opening of the connecting channel 10, the bypass channel 12 is opened, connected to and extended out of the cold oil channel 9, and then opened to the second oil outlet channel 8, thereby forming the connecting channel 10. When the temperature control valve is used, the bypass channel 12 will be blocked.

[0028] As a preferred embodiment, a notch 13 for opening the bypass channel 12 is provided on the bottom surface of the valve body 1 to facilitate the opening of the bypass channel 12 .

[0029] As a preferred implementation, the second oil outlet channel 8 is horizontally arranged, and the cold oil channel 9 is parallel to the second oil outlet channel 8 .

[0030] The principle of the compressor temperature control valve of the utility model is that the oil and gas barrel is usually connected to the exhaust port of the compressor, and the compressed hot gas and oil droplets first enter the oil and gas barrel for oil and gas separation, and the oil droplets are deposited at the bottom of the barrel, while the clean air is discharged from the system. When the compressor is turned on, the temperature of the oil in the oil and gas barrel is generally not too high. When the oil in the oil and gas barrel passes through the temperature control valve, the valve core does not reach the opening temperature, and the oil inlet channel 6 is connected to the second oil outlet channel 8. The oil directly flows into the oil inlet channel 6, the second oil outlet channel 8, the connecting channel 10, and the cold oil channel 9 in sequence through the oil inlet port 2, and finally enters the filter through the cold oil outlet 5 for filtration, and then flows back to the compressor host, that is, Figure 1 The pink line in the middle represents the flow line. After the compressor runs for a period of time, the oil temperature in the oil and gas barrel rises, and the oil and gas barrel enters the temperature control valve through the oil inlet 2 and the oil inlet channel 6. The valve core opens under the principle of thermal expansion and contraction, so that the hot oil flows from the oil inlet channel 6 through the valve core into the first oil outlet channel 7 and the hot oil outlet 3 to the cooler for cooling to form cold oil. The cold oil then flows through the cold oil inlet 4 and the cold oil channel 9 in turn, and finally enters the filter through the cold oil outlet 5 for filtration, and then flows back to the compressor host. Figure 1 The flow line of the middle blue line. The temperature control valve can control the oil flow through the cooler by adjusting the position of the valve core according to the actual operating temperature of the compressor, thereby maintaining a constant operating temperature of the compressor.

[0031] The first end of the communication channel 10 of the utility model is communicated with the cold oil channel 9, and the second end is communicated with the second oil outlet channel 8, and the communication channel 10 is arranged obliquely in the direction away from the cold oil inlet 4, so that the first end of the communication channel 10 can avoid the interference of the internal thread 901 at the cold oil outlet 5, and the distance between the second end of the communication channel 10 and the valve core is expanded, that is, Figure 1 The length a in the diagram becomes longer, thereby extending the overall flow length of the low-temperature oil, especially extending the flow length in the second oil outlet channel 8.

[0032] After the valve core of the temperature control valve is opened for a period of time, the temperature of the oil in the oil and gas barrel decreases, and the valve core will slowly close. At this time, there will be hot oil residue in the oil inlet channel 6. When the connecting channel 10 is arranged vertically with the second oil outlet channel 8, due to the interference of the internal thread 901 at the cold oil outlet 5, the distance a between the second end of the connecting channel 10 and the valve core is small. At this time, the hot oil in the oil inlet channel 6 will directly flow from the second oil outlet channel 8 into the connecting channel 10, and finally flow into the compressor main engine, causing harm to the compressor main engine. The utility model expands the distance a between the second end of the connecting channel 10 and the valve core by setting an oblique connecting channel 10. Then, the hot oil remaining in the oil inlet channel 6 can flow through the second oil outlet channel 8 for a long distance before flowing into the connecting channel 10, providing a buffer for the hot oil to flow into the connecting channel 10. At the same time, due to the extension of the overall flow length of the hot oil, the hot oil stays in the flow channel for a longer time, so that the hot oil can flow into the compressor main engine at a lower temperature, reducing the damage to the compressor main engine.

[0033] Parts not involved in the present invention are the same as the prior art or can be implemented by the prior art. Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A temperature control valve for a compressor, characterized in that: include: Valve body; An oil inlet for connecting to an oil and gas barrel is provided on the top surface of the valve body; A hot oil outlet and a cold oil inlet for connecting to a cooler are arranged on the side of the valve body on the same side; A cold oil outlet for connecting to a filter, arranged on a side of the valve body away from the hot oil outlet and the cold oil inlet; An oil inlet channel, wherein a first end of the oil inlet channel is connected to the oil inlet, a second end of the oil inlet channel is connected to a first oil outlet channel and a second oil outlet channel, and the first oil outlet channel is connected to the hot oil outlet; A cold oil passage, connected between the cold oil inlet and the cold oil outlet, wherein the cold oil passage is connected with a connecting passage in a direction away from the cold oil inlet, and the connecting passage is connected with the second oil outlet passage; A valve core for controlling the opening and closing of the oil inlet passage and the first oil outlet passage and the second oil outlet passage is arranged at the second end of the oil inlet passage.

2. The compressor temperature control valve according to claim 1, characterized in that: Internal threads are respectively arranged at two ends of the cold oil channel, and the communication channel is arranged on the channel between the internal threads at the two ends of the cold oil channel.

3. The compressor temperature control valve according to claim 1, characterized in that: The communication channel extends out of the cold oil channel to form a bypass channel.

4. The compressor temperature control valve according to claim 3, characterized in that: The bottom surface of the valve body is provided with a notch for opening the bypass channel.

5. The compressor temperature control valve according to claim 1, characterized in that: The second oil outlet channel is arranged horizontally, and the cold oil channel is arranged parallel to the second oil outlet channel.

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