Compressor low-pressure performance test system

Abstract

The utility model discloses a compressor low-pressure performance test system, and particularly relates to the technical field of compressors, the test system comprises an AC / DC power meter, a gear motor and a pressure regulating valve; the alternating-current and direct-current power meter is connected with a wiring terminal board through a wire harness, the wiring terminal board is connected with the compressor body through a wire harness, an air outlet of the compressor body is provided with an air guide pipe, an output gear motor shaft is fixedly connected with a pressure regulating valve, and one end of the air guide pipe is provided with buffer equipment. An exhaust pipe is arranged at the output end of the buffering device, the pressure regulating valve is installed in the exhaust pipe in series, and the forward and reverse rotation switch is connected with the gear motor through a wire harness. According to the utility model, the problem that the working pressure of the compressor cannot be accurately and efficiently adjusted in the traditional low-pressure test is solved, a quick and efficient test means is provided for selecting a proper compressor for the plateau oxygen generator, the performance test efficiency of the compressor is improved, and the development cycle of products is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of compressors, and more specifically, to a compressor low-pressure performance testing system. Background Art

[0002] It is known that the main impacts of plateau areas on humans are hypoxia, cold, dry climate, ultraviolet radiation, etc.; among them, the most serious impact on the human body is plateau hypoxia. Acute mountain sickness caused by hypoxia is the main reason for non-accidental layoffs of construction workers in plateau construction, especially for those who quickly enter the plateau or have excessive physical exertion. The incidence of altitude sickness will be very high. The existing method uses micro and small oxygen generators to solve the problem of plateau hypoxia in plateau areas, and to rescue the wounded in sudden disasters, reducing the mortality rate and improving the treatment rate through timely oxygen inhalation.

[0003] Among them, traditional medical molecular sieve oxygen concentrators are usually designed based on plain application environments. If they enter high-altitude areas above 3,000 meters, the air will be thin, the compressor exhaust capacity will be attenuated, the performance of the oxygen concentrator will be significantly attenuated, and the oxygen concentration will not meet the standard requirement of 93% oxygen specified in YY / T 0298. Therefore, during the development stage of plateau oxygen concentrators, it is necessary to select compressors with displacement capacity that meet the design high-altitude requirements to ensure the plateau performance indicators of the oxygen concentrator.

[0004] However, in actual use, the traditional method is to determine the low-pressure performance parameters of the compressor based on theoretical calculations or a large number of experiments. However, the theoretical calculations are inaccurate, and the time cost and experimental cost of a large number of experiments are too high. Therefore, a compressor low-pressure performance test system is proposed as a further improvement. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides a compressor low-pressure performance test system to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the utility model provides the following technical solutions: a compressor low pressure performance test system, comprising: a compressor body and a forward and reverse switch, the test system comprising: an AC and DC power meter, a reduction motor and a pressure regulating valve;

[0007] The AC / DC power meter is connected to a terminal board via a wiring harness, the terminal board is connected to a compressor body via a wiring harness, an air outlet of the compressor body is provided with an air duct, the output reduction motor shaft is fixedly connected to a pressure regulating valve, a buffer device is provided at one end of the air duct away from the compressor body, an exhaust pipe is provided at the output end of the buffer device, the pressure regulating valve is installed in series in the exhaust pipe, and the forward / reverse switch is connected to the reduction motor via a wiring harness.

[0008] Furthermore, the air outlet of the compressor body is fixedly connected to one end of the air duct, the end of the air duct away from the compressor body is fixedly connected to the input end of the buffer device, and the output end of the buffer device is fixedly connected to one end of the exhaust pipe.

[0009] Furthermore, a pressure gauge is fixedly connected to the surface of the buffer device via an air pipe.

[0010] Furthermore, a rotor flowmeter is fixedly connected to one end of the exhaust pipe away from the buffer device.

[0011] Furthermore, the power supply harnesses of the AC / DC power meter and the forward / reverse switch are connected to a power source outside the low-pressure test box.

[0012] Furthermore, the buffer device is configured as a buffer gas tank.

[0013] Technical effects and advantages of the utility model:

[0014] 1. Compared with the prior art, the utility model realizes a single low-pressure test and completes the detection of the low-pressure performance index of the compressor, which solves the problem that the traditional low-pressure test cannot accurately and efficiently adjust the working pressure of the compressor. It provides a fast and efficient testing method for selecting a suitable compressor for plateau oxygen generators, improves the efficiency of compressor performance testing, and shortens the product development cycle.

[0015] 2. Compared with the existing technology, the exhaust working pressure of the compressor body can be adjusted outside the low-pressure test box through the combination of the reduction motor and the pressure regulating valve; the power consumption of the tested compressor can be intuitively measured through the AC and DC power meter, and it can adapt to a variety of power supply systems to quickly complete the efficient detection of the low-pressure performance of the compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] The accompanying drawings are marked as follows: 1. compressor body; 2. forward and reverse switch; 3. AC and DC power meter; 4. reduction motor; 5. pressure regulating valve; 6. terminal board; 7. air duct; 8. buffer device; 81. pressure gauge; 9. exhaust pipe; 10. rotor flow meter. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0019] As attached Figure 1A compressor low pressure performance test system shown includes: a compressor body 1 and a forward and reverse switch 2, and the test system includes: an AC and DC power meter 3, a reduction motor 4 and a pressure regulating valve 5;

[0020] The AC / DC power meter 3 is connected to the terminal board 6 through a wiring harness, the terminal board 6 is connected to the compressor body 1 through a wiring harness, the air outlet of the compressor body 1 is provided with an air guide pipe 7, the output shaft of the reduction motor 4 is fixedly connected to the pressure regulating valve 5, the end of the air guide pipe 7 away from the compressor body 1 is provided with a buffer device 8, the output end of the buffer device 8 is provided with an exhaust pipe 9, the pressure regulating valve 5 is installed in series in the exhaust pipe 9, and the forward and reverse switch 2 is connected to the reduction motor 4 through a wiring harness;

[0021] The power supply harnesses of the AC / DC power meter 3 and the forward / reverse switch 2 are both connected to the power supply outside the low pressure test box;

[0022] The buffer device 8 is configured as a buffer gas tank.

[0023] In a preferred embodiment, as shown in the attached Figure 1 As shown, the air outlet of the compressor body 1 is fixedly connected to one end of the air duct 7, the end of the air duct 7 away from the compressor body 1 is fixedly connected to the input end of the buffer device 8, and the output end of the buffer device 8 is fixedly connected to one end of the exhaust pipe 9.

[0024] In a preferred embodiment, as shown in the attached Figure 1 As shown, a pressure gauge 81 is fixedly connected to the surface of the buffer device 8 via an air pipe.

[0025] In a preferred embodiment, as shown in the attached Figure 1 As shown, a rotor flowmeter 10 is fixedly connected to one end of the exhaust pipe 9 away from the buffer device 8 .

[0026] Among them, the AC and DC power meter 3 can intuitively read the power supply voltage, working current, and power consumption data of the compressor body 1; and the exhaust pipe 9 is connected in series with the pressure regulating valve 5 and then connected to the rotor flow meter 10;

[0027] Read the exhaust working pressure data of the compressor body 1 through the pressure gauge 81;

[0028] The exhaust volume of the compressor body 1 is read by the rotor flow meter 10;

[0029] The pressure regulation of the pressure regulating valve 5 is controlled by the forward and reverse switch 2 to adjust the exhaust working pressure of the compressor body 1;

[0030] Among them, the commonly used power supply systems of the compressor body 1 are AC220V and DC24V;

[0031] Example:

[0032] Set the rated altitude in the low pressure test chamber to, for example, 4500 meters, corresponding to an atmospheric pressure of 57.7 KPa.

[0033] The forward and reverse switch 2 adjusts the exhaust working pressure of the compressor body 1 to the set value: 0.14MPa;

[0034] The displacement of the compressor body 1 is set to: 70L / min,

[0035] The power consumption of the compressor body 1 under the measured displacement is: 350W.

[0036] In summary, the displacement of the compressor body 1 at an altitude of 4500 meters is 70L / min, 0.14MPa, and the power consumption is 350W.

[0037] Working principle of the utility model: when measuring the low-pressure performance of the compressor body 1, first put the compressor low-pressure performance test system into the low-pressure test box, then connect the terminal board 6 to the AC / DC power meter 3, and connect the air outlet of the compressor body 1 to the inlet of the buffer device 8 through the air guide pipe 7; then connect the power supply harness of the AC / DC power meter 3 and the forward and reverse switch 2 from the dedicated harness interface of the low-pressure test box, put the corresponding control switch outside the low-pressure test box, and then close the door of the low-pressure test box to set the rated altitude in the low-pressure test box;

[0038] Start the AC / DC power meter 3 to supply power to the compressor body 1, and the compressor body 1 works normally; the user understands the pressure value in the buffer device 8 by observing the pressure gauge 81; adjusts the exhaust working pressure of the compressor body 1 to the set value through the forward and reverse switch 2, and records it; obtains the displacement of the compressor body 1 by reading the data of the rotor flowmeter 10; obtains the power consumption of the compressor body 1 under the measured displacement by reading the power data of the AC / DC power meter 3.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A compressor low pressure performance test system, comprising: The compressor body (1) and the forward and reverse switch (2) are characterized in that the test system comprises: an AC and DC power meter (3), a reduction motor (4) and a pressure regulating valve (5); The AC / DC power meter (3) is connected to a terminal board (6) via a wiring harness, the terminal board (6) is connected to a compressor body (1) via a wiring harness, an air outlet of the compressor body (1) is provided with an air guide pipe (7), an output shaft of the reduction motor (4) is fixedly connected to a pressure regulating valve (5), a buffer device (8) is provided at one end of the air guide pipe (7) away from the compressor body (1), an exhaust pipe (9) is provided at the output end of the buffer device (8), the pressure regulating valve (5) is installed in the exhaust pipe (9), and the forward / reverse switch (2) is connected to the reduction motor (4) via a wiring harness.

2. A compressor low pressure performance test system according to claim 1, characterized in that: The air outlet of the compressor body (1) is fixedly connected to one end of the air guide pipe (7), the end of the air guide pipe (7) away from the compressor body (1) is fixedly connected to the input end of the buffer device (8), and the output end of the buffer device (8) is fixedly connected to one end of the exhaust pipe (9).

3. A compressor low pressure performance test system according to claim 2, characterized in that: A pressure gauge (81) is fixedly connected to the surface of the buffer device (8) via an air pipe.

4. A compressor low pressure performance test system according to claim 2, characterized in that: One end of the exhaust pipe (9) away from the buffer device (8) is fixedly connected to a rotor flowmeter (10).

5. A compressor low pressure performance test system according to claim 1, characterized in that: The power supply harnesses of the AC / DC power meter (3) and the forward / reverse switch (2) are both connected to a power source outside the low-pressure test box.

6. A compressor low pressure performance test system according to claim 1, characterized in that: The buffer device (8) is configured as a buffer gas tank.

Images