Fuel cell compressor device

Abstract

The invention relates to the technical field of fuel cell compressors, in particular to a fuel cell compressor device which comprises a main frame, a direct current motor is fixedly mounted on the left side of the inner bottom face of the main frame through bolts, and a compressor is fixedly mounted on the right side of the inner bottom face of the main frame through bolts. An output shaft of the direct current motor is coaxially and fixedly connected with a driving belt wheel, an input shaft of the compressor is coaxially and fixedly connected with a driven belt wheel, the driving belt wheel and the driven belt wheel are in transmission through a transmission belt, and a vibration feedback mechanism is further installed on the inner bottom face of the main frame. According to the fuel cell compressor device, when the fuel cell compressor vibrates abnormally, the swing amplitude of the swing plate can be increased, along with swing of the swing plate, the connecting rod drives the mouth-shaped plate to vertically move in the direction of the sliding plate, the vertical height of the connecting rod changes, and when the connecting rod reaches the highest position, the top face of the mouth-shaped plate can press the button; and the alarm is started.

Description

Technical Field

[0001] The invention relates to the technical field of carbon dioxide gas compression, and in particular to a fuel cell compressor device. Background Art

[0002] Fuel cell compressors are mainly used for long-term pressurization and water removal of fuel cell tail gas (high-concentration, humid CO2) in a closed space. The core component of a fuel cell compressor is the compressor body, which consists of a motor and a compressor rotor. The motor drives the compressor rotor to rotate, thereby sucking the fuel cell tail gas into the compressor and increasing its pressure through compression.

[0003] The fuel cell compressor operates normally by having the compressor rotor driven by an electric motor. Mechanical vibration is inevitable during the normal operation of the compressor. When the motor is abnormal or the compressor is damaged, the vibration of the fuel cell compressor will increase. However, since the fuel cell compressor is often installed inside a protective casing and a soundproof cover, the abnormal vibration generated is not easy to be detected. In the prior art, the abnormal vibration of the compressor is detected by installing multiple vibration sensors, which is costly.

[0004] In order to solve the above problems, we have made improvements and proposed a fuel cell compressor device. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] The present invention provides a fuel cell compressor device, comprising a main frame, a DC motor is fixedly installed on the left side of the inner bottom surface of the main frame by bolts, a compressor is fixedly installed on the right side of the inner bottom surface of the main frame by bolts, an output shaft of the DC motor is coaxially fixedly connected to a driving pulley, an input shaft of the compressor is coaxially fixedly connected to a driven pulley, and transmission is performed between the driving pulley and the driven pulley by a transmission belt;

[0007] A vibration feedback mechanism is also installed on the inner bottom surface of the main frame, and the vibration feedback mechanism includes a cross plate, a swing plate is rotatably connected to the middle of the front side of the cross plate, a counterweight swing block is fixedly connected to the bottom end of the swing plate, an arc-shaped rack is fixedly connected to the rear side of the swing plate, the arc-shaped rack is meshed with a spur rack, a piston rod is fixedly connected to the right side of the spur rack, and a piston is fixedly connected to the right end of the piston rod;

[0008] A limiting plate is fixedly connected to the upper front portion of the cross plate, a sliding plate is slidably connected to the limiting plate, and the cross-section of the sliding plate is rectangular, a mouth-shaped plate is fixedly connected to the top of the sliding plate, a top plate is fixedly connected to the top surface of the cross plate, and a button for activating the alarm is installed on the bottom surface of the top plate.

[0009] As a preferred technical solution of the present invention, the left and right ends of the cross plate are fixedly connected with fixed plates, a positioning slide rod is horizontally fixedly connected between the two fixed plates, and the cross-section of the positioning slide rod is rectangular, and a slider is fixedly connected to the bottom surface of the spur rack, and the slider is slidably connected to the positioning slide rod.

[0010] As a preferred technical solution of the present invention, two support plates are fixedly connected to the inner bottom surface of the main frame, the top surfaces of the two support plates are fixedly connected to the same water delivery cylinder, and the piston is slidably connected inside the water delivery cylinder;

[0011] The right side of the water delivery cylinder is connected with a water inlet pipe and a water outlet pipe, both of which are equipped with one-way valves, the water inlet pipe is connected with a heat exchange plate, and the water outlet pipe is connected with an external water pipe.

[0012] As a preferred technical solution of the present invention, a metal serpentine tube is provided inside the heat exchange plate, and the water inlet pipe is connected to the outlet of the metal serpentine tube, and the inlet of the metal serpentine tube is connected to the external water pipe.

[0013] As a preferred technical solution of the present invention, a connecting rod is fixedly connected to the rear side of the swing plate, and a movable block is rotatably connected to the end of the connecting rod, and the movable block is slidably connected to the bottom surface of the mouth-shaped plate.

[0014] As a preferred technical solution of the present invention, a spring is fixedly connected between the top surface of the mouth-shaped plate and the bottom surface of the top plate, a baffle is fixedly connected to the outer wall of the slide plate, and the baffle is in contact with the top surface of the limit plate.

[0015] As a preferred technical solution of the present invention, a soundproof cover is fixedly connected to the inner bottom surface of the main frame, and the rear side of the soundproof cover is set as a shutter air inlet;

[0016] The DC motor, the compressor and the vibration feedback mechanism are all located inside the soundproof enclosure, and the heat exchange plate is fixedly connected to the top surface of the soundproof enclosure.

[0017] As a preferred technical solution of the present invention, side guard plates are installed on the left and right sides of the main frame by bolts, a front door panel is installed on the front of the main frame by bolts, an air inlet is opened on the front of the front door panel, and an electric control cabinet is installed on the top surface of the main frame.

[0018] The beneficial effects of the present invention are:

[0019] 1. This fuel cell compressor device, through the push of the piston rod, the piston reciprocates inside the water delivery cylinder. When the piston moves to the left, the water in the water inlet pipe is pumped into the water delivery cylinder. When the piston moves to the right, the water in the water delivery cylinder is pushed into the water outlet pipe. The water in the metal serpentine tube inside the heat exchange plate is always in a flowing state, taking away the heat generated by the compressor.

[0020] 2. For this type of fuel cell compressor device, when the fuel cell compressor vibrates abnormally, the swing amplitude of the swing plate will increase. As the swing plate swings, the connecting rod drives the mouth-shaped plate to move vertically along the direction of the skateboard, and the vertical height of the connecting rod changes. When the connecting rod reaches the highest point, the top surface of the mouth-shaped plate will press the button and the alarm will be activated. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0022] Figure 1 is a three-dimensional schematic diagram of a fuel cell compressor device of the present invention;

[0023] Figure 2 is a schematic top view of a fuel cell compressor device of the present invention;

[0024] Figure 3 The invention is a fuel cell compressor device Figure 2 AA section view;

[0025] Figure 4 The invention is a fuel cell compressor device Figure 2 BB section view;

[0026] Figure 5 It is a front schematic diagram of a vibration feedback mechanism of a fuel cell compressor device of the present invention;

[0027] Figure 6 It is a schematic diagram of the meshing of an arc-shaped rack and a spur rack of a fuel cell compressor device of the present invention;

[0028] Figure 7 It is a schematic side view of a vibration feedback mechanism of a fuel cell compressor device of the present invention;

[0029] Figure 8 It is a cross-sectional schematic diagram of a heat exchange plate of a fuel cell compressor device of the present invention;

[0030] In the figure: 1. main frame; 2. DC motor; 3. compressor; 4. driving pulley; 5. driven pulley; 6. cross plate; 7. swing plate; 8. arc-shaped rack; 9. straight rack; 10. fixed plate; 11. positioning slide bar; 12. slider; 13. piston rod; 14. limit plate; 15. slide plate; 16. mouth-shaped plate; 17. top plate; 18. piston; 19. support plate; 20. water delivery cylinder; 21. water inlet pipe; 22. water outlet pipe; 23. heat exchange plate; 24. connecting rod; 25. sound insulation cover; 26. electric control cabinet; 27. movable block; 28. counterweight swing block. DETAILED DESCRIPTION

[0031] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0032] Example: Figure 1-Figure 4 As shown, a fuel cell compressor device comprises a main frame 1, a DC motor 2 is fixedly installed on the left side of the inner bottom surface of the main frame 1 by bolts, a compressor 3 is fixedly installed on the right side of the inner bottom surface of the main frame 1 by bolts, the output shaft of the DC motor 2 is coaxially fixedly connected to a driving pulley 4, the input shaft of the compressor 3 is coaxially fixedly connected to a driven pulley 5, and the driving pulley 4 and the driven pulley 5 are driven by a transmission belt;

[0033] The normal working process of the fuel cell compressor is that the DC motor 2 drives the compressor 3 to work through the driving pulley 4, the driven pulley 5 and the transmission belt.

[0034] like Figure 5-Figure 7 As shown, a vibration feedback mechanism is also installed on the inner bottom surface of the main frame 1, and the vibration feedback mechanism includes a cross plate 6, a swing plate 7 is rotatably connected to the middle of the front of the cross plate 6, a counterweight swing block 28 is fixedly connected to the bottom end of the swing plate 7, an arc-shaped rack 8 is fixedly connected to the rear side of the swing plate 7, the arc-shaped rack 8 is meshed with a spur rack 9, a piston rod 13 is fixedly connected to the right side of the spur rack 9, and a piston 18 is fixedly connected to the right end of the piston rod 13;

[0035] When the fuel cell compressor is working normally, the mechanical vibration generated will cause the swing plate 7 to swing back and forth. The function of the counterweight block 28 is to increase the rotational inertia of the swing plate 7. As the swing plate 7 swings back and forth, the arc-shaped rack 8 drives the spur rack 9 to move back and forth, further driving the piston rod 13 to move back and forth, and the piston 18 moves synchronously with the piston rod 13.

[0036] like Figure 6As shown, the left and right ends of the cross plate 6 are fixedly connected with fixed plates 10, a positioning slide bar 11 is horizontally fixedly connected between the two fixed plates 10, and the cross-section of the positioning slide bar 11 is rectangular, and a slider 12 is fixedly connected to the bottom surface of the spur rack 9, and the slider 12 is slidably connected to the positioning slide bar 11.

[0037] The cross section of the positioning slide bar 11 is rectangular, which can limit the rotation of the slider 12 , and the spur rack 9 will move along the direction of the positioning slide bar 11 .

[0038] like Figure 6 As shown, two support plates 19 are fixedly connected to the inner bottom surface of the main frame 1, the top surfaces of the two support plates 19 are fixedly connected to the same water delivery cylinder 20, and the piston 18 is slidably connected inside the water delivery cylinder 20;

[0039] The right side of the water delivery cylinder 20 is connected with a water inlet pipe 21 and a water outlet pipe 22, both of which are equipped with one-way valves. The water inlet pipe 21 is connected with a heat exchange plate 23, and the water outlet pipe 22 is connected with an external water pipe.

[0040] like Figure 5 As shown, the one-way valve on the water inlet pipe 21 makes the water flow direction of the water inlet pipe 21 enter the water delivery cylinder 20, and the one-way valve on the water outlet pipe 22 makes the water flow direction of the water outlet pipe 22 enter the water delivery cylinder 20 into the water outlet pipe 22. The piston 18 is pushed by the piston rod 13 to reciprocate inside the water delivery cylinder 20. During the movement of the piston 18 to the left, the water in the water inlet pipe 21 is pumped into the water delivery cylinder 20. At this time, the one-way valve on the water outlet pipe 22 is closed. During the movement of the piston 18 to the right, the water in the water delivery cylinder 20 is pushed into the water outlet pipe 22. At this time, the one-way valve on the water inlet pipe 21 is closed.

[0041] like Figure 8 As shown, a metal serpentine tube is provided inside the heat exchange plate 23, and the water inlet pipe 21 is connected to the outlet of the metal serpentine tube, and the inlet of the metal serpentine tube is connected to the external water pipe.

[0042] During the reciprocating movement of the piston 18, the water in the metal serpentine tube inside the heat exchange plate 23 is always in a flowing state, taking away the heat generated by the operation of the compressor. In order to improve the heat exchange efficiency, the heat exchange plate 23 and the metal serpentine tube are both made of copper with high thermal conductivity.

[0043] A limit plate 14 is fixedly connected to the upper front part of the cross plate 6, a slide plate 15 is slidably connected to the limit plate 14, and the cross section of the slide plate 15 is rectangular, a mouth-shaped plate 16 is fixedly connected to the top of the slide plate 15, a top plate 17 is fixedly connected to the top surface of the cross plate 6, and a button for activating the alarm is installed on the bottom surface of the top plate 17.

[0044] like Figure 7As shown, a connecting rod 24 is fixedly connected to the rear side of the swing plate 7, and a movable block 27 is rotatably connected to the end of the connecting rod 24. The movable block 27 is slidably connected to the bottom surface of the mouth-shaped plate 16.

[0045] When the fuel cell compressor vibrates abnormally, the swing amplitude of the swing plate 7 will increase. As the swing plate 7 swings, the connecting rod 24 drives the mouth-shaped plate 16 to move vertically along the direction of the slide plate 15, and the vertical height of the connecting rod 24 changes. When the connecting rod 24 reaches the highest point, the top surface of the mouth-shaped plate 16 presses the button, and the alarm is activated.

[0046] When the fuel cell compressor works normally, the swing amplitude of the swing plate 7 is in a normal range. Even if the connecting rod 24 reaches the highest point, the top surface of the mouth-shaped plate 16 will not touch the button. The normal swing amplitude of the swing plate 7 is positively correlated with the distance from the top surface of the mouth-shaped plate 16 to the button. That is, the greater the distance from the top surface of the mouth-shaped plate 16 to the button, the greater the normal swing amplitude of the swing plate 7.

[0047] A spring is fixedly connected between the top surface of the mouth-shaped plate 16 and the bottom surface of the top plate 17 , and a baffle is fixedly connected to the outer wall of the slide plate 15 , and the baffle contacts the top surface of the limiting plate 14 .

[0048] The spring plays a buffering role when the mouth-shaped plate 16 presses the button, and the baffle plays a limiting role in the downward movement of the slide plate 15.

[0049] A soundproof cover 25 is fixedly connected to the inner bottom surface of the main frame 1, and the rear side of the soundproof cover 25 is set as a shutter air inlet;

[0050] The DC motor 2 , the compressor 3 and the vibration feedback mechanism are all located inside the soundproof cover 25 , and the heat exchange plate 23 is fixedly connected to the top surface of the soundproof cover 25 .

[0051] Sound insulation cotton is pasted on the inner wall of the sound insulation cover 25 to reduce the operating noise of the fuel cell compressor, and air can enter the compressor 3 through the shutter air inlet.

[0052] Side guard plates are installed on the left and right sides of the main frame 1 by bolts, a front door panel is installed on the front of the main frame 1 by bolts, an air inlet is opened on the front of the front door panel, and an electric control cabinet 26 is installed on the top surface of the main frame 1.

[0053] The fuel cell compressor is protected by the side guard plates, the front door plate and the main frame 1. The air inlet on the front door plate allows external air to enter the main frame 1. A PLC controller is installed inside the electric control cabinet 26, and the PLC controller can control the operation of the DC motor 2.

[0054] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fuel cell compressor device, comprising a main frame (1), characterized in that: A DC motor (2) is fixedly mounted on the left side of the inner bottom surface of the main frame (1) by means of bolts, and a compressor (3) is fixedly mounted on the right side of the inner bottom surface of the main frame (1) by means of bolts, the output shaft of the DC motor (2) is coaxially fixedly connected to a driving pulley (4), the input shaft of the compressor (3) is coaxially fixedly connected to a driven pulley (5), and transmission is performed between the driving pulley (4) and the driven pulley (5) by means of a transmission belt; A vibration feedback mechanism is also installed on the inner bottom surface of the main frame (1), and the vibration feedback mechanism includes a cross plate (6), a swing plate (7) is rotatably connected to the middle of the front side of the cross plate (6), a counterweight swing block (28) is fixedly connected to the bottom end of the swing plate (7), an arc-shaped rack (8) is fixedly connected to the rear side of the swing plate (7), the arc-shaped rack (8) is meshed with a spur rack (9), a piston rod (13) is fixedly connected to the right side of the spur rack (9), and a piston (18) is fixedly connected to the right end of the piston rod (13); The upper front part of the cross plate (6) is fixedly connected to a limit plate (14), the limit plate (14) is slidably connected to a slide plate (15), and the cross section of the slide plate (15) is rectangular, the top end of the slide plate (15) is fixedly connected to a mouth-shaped plate (16), the top surface of the cross plate (6) is fixedly connected to a top plate (17), and the bottom surface of the top plate (17) is provided with a button for activating an alarm.

2. A fuel cell compressor device according to claim 1, characterized in that: The left and right ends of the cross plate (6) are fixedly connected to fixed plates (10), a positioning slide bar (11) is horizontally fixedly connected between the two fixing plates (10), and the cross section of the positioning slide bar (11) is rectangular, and the bottom surface of the spur rack (9) is fixedly connected to a sliding block (12), and the sliding block (12) is slidably connected to the positioning slide bar (11).

3. A fuel cell compressor device according to claim 1, characterized in that: Two support plates (19) are fixedly connected to the inner bottom surface of the main frame (1), the top surfaces of the two support plates (19) are fixedly connected to the same water delivery cylinder (20), and the piston (18) is slidably connected inside the water delivery cylinder (20); The right side of the water delivery cylinder (20) is connected to a water inlet pipe (21) and a water outlet pipe (22), both of which are equipped with one-way valves. The water inlet pipe (21) is connected to a heat exchange plate (23), and the water outlet pipe (22) is connected to an external water pipe.

4. A fuel cell compressor device according to claim 3, characterized in that: A metal serpentine tube is provided inside the heat exchange plate (23), and the water inlet pipe (21) is connected to the outlet of the metal serpentine tube, and the inlet of the metal serpentine tube is connected to an external water pipe.

5. A fuel cell compressor device according to claim 1, characterized in that: The rear side surface of the swing plate (7) is fixedly connected to a connecting rod (24), the end of the connecting rod (24) is rotatably connected to a movable block (27), and the movable block (27) is slidably connected to the bottom surface of the mouth-shaped plate (16).

6. A fuel cell compressor device according to claim 1, characterized in that: A spring is fixedly connected between the top surface of the mouth-shaped plate (16) and the bottom surface of the top plate (17); a baffle is fixedly connected to the outer wall of the slide plate (15), and the baffle is in contact with the top surface of the limiting plate (14).

7. A fuel cell compressor device according to claim 3, characterized in that: A soundproof cover (25) is fixedly connected to the inner bottom surface of the main frame (1), and the rear side of the soundproof cover (25) is arranged as a shutter air inlet; The DC motor (2), the compressor (3) and the vibration feedback mechanism are all located inside the soundproof cover (25), and the heat exchange plate (23) is fixedly connected to the top surface inside the soundproof cover (25).

8. A fuel cell compressor device according to claim 1, characterized in that: The left and right sides of the main frame (1) are equipped with side guard plates by means of bolts, the front of the main frame (1) is equipped with a front door panel by means of bolts, an air inlet is provided on the front of the front door panel, and an electric control cabinet (26) is installed on the top surface of the main frame (1).

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