Anti-freezing device of blow-off pipe of air compressor and air compressor system

Abstract

The utility model relates to an anti-freezing device of a blow-off pipe of an air compressor and an air compressor system.The blow-off pipe is used for discharging waste gas generated by the air compressor, the anti-freezing device comprises a steam turbine, a gas inlet pipe used for being connected with the blow-off pipe is arranged, and the waste gas enters the steam turbine through the gas inlet pipe to drive the steam turbine to work; the generator is in linkage connection with the steam turbine to be driven by the steam turbine to generate electricity; the electric tracing band is electrically connected with the generator and used for supplying heat to the blow-off pipe, waste gas in the blow-off pipe is prevented from being frozen, it is guaranteed that the waste gas can be smoothly discharged into the external environment, the air compressor is driven by the waste gas to drive the generator to operate, the generator can output electric energy, an external power source does not need to be used for supplying power to the electric tracing band, and energy is saved. And the anti-freezing cost is reduced.

Description

Technical Field

[0001] The present disclosure relates to the technical field of air compressors, and in particular to an antifreeze device for a sewage pipe of an air compressor and an air compressor system. Background Art

[0002] The air compressor of a thermal power plant needs to continuously discharge exhaust gas through the sewage pipe when it is running. The temperature in the north is low in winter, and the exhaust gas may freeze in the sewage pipe. In the related technology, technicians wrap the electric heating tape around the outer circumference of the sewage pipe and power the electric heating tape through an external power supply so that the electric heating tape can continuously heat the sewage pipe to prevent the exhaust gas in the sewage pipe from freezing. However, this method requires additional electricity consumption and increases the antifreeze cost. Utility Model Content

[0003] The purpose of the present disclosure is to provide an antifreeze device for a sewage pipe of an air compressor and an air compressor system, so as to at least partially solve the problems existing in the related art.

[0004] In order to achieve the above object, the present disclosure provides an antifreeze device for a sewage pipe of an air compressor, wherein the sewage pipe is used to discharge the exhaust gas generated by the air compressor, and the antifreeze device comprises:

[0005] A steam turbine is provided with an air intake pipe connected to the sewage pipe, and the exhaust gas enters the steam turbine through the air intake pipe to drive the steam turbine to work;

[0006] a generator, connected in linkage with the steam turbine so as to be driven by the steam turbine to generate electricity; and

[0007] An electric heating tape is electrically connected to the generator and is used to provide heat for the sewage pipe.

[0008] Optionally, the electric heating tape is at least spirally wound around the outer circumference of the sewage pipe along the extension direction of the sewage pipe.

[0009] Optionally, the electric heating tape is spirally wound around the outer circumference of the steam turbine and the sewage pipe.

[0010] Optionally, both the end of the air inlet pipe and the end of the sewage pipe are provided with mounting holes, and the sewage pipe and the air inlet pipe are detachably connected by fasteners respectively penetrating the mounting holes of the sewage pipe and the mounting holes of the air inlet pipe.

[0011] Optionally, the antifreeze device further comprises a coupling, wherein the coupling is installed between the rotating shaft of the steam turbine and the rotating shaft of the generator.

[0012] Optionally, the antifreeze device further comprises a frame, and the steam turbine and the generator are respectively fixed on the frame.

[0013] Optionally, the rack is configured to be height-adjustable.

[0014] Optionally, the generator is a DC generator.

[0015] Optionally, a warning light is installed on the generator, and the electric heating tape is connected in series with the warning light.

[0016] According to a second aspect of an embodiment of the present disclosure, an air compressor system is provided, comprising an air compressor and an antifreeze device for a sewage pipe of the air compressor as described in any one of the above embodiments, wherein the air intake pipe and the sewage pipe are connected.

[0017] The technical solution provided by the embodiments of the present disclosure may have the following beneficial effects:

[0018] The air intake pipe of the steam turbine is connected to the sewage pipe of the air compressor, and the steam turbine and the generator are linked. The exhaust gas discharged by the air compressor will enter the steam turbine through the air intake pipe to drive the steam turbine to drive the generator to rotate. The generator can convert mechanical energy into electrical energy, which can supply power to the electric heating belt. The electric heating belt can provide heat for the sewage pipe, avoiding the freezing of the exhaust gas in the sewage pipe and ensuring that the exhaust gas can be smoothly discharged into the external environment. By using the exhaust gas to drive the air compressor to drive the generator to run, the generator can output electrical energy, without the need to use an external power supply to power the electric heating belt, reducing the antifreeze cost and being environmentally friendly.

[0019] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0021] Figure 1 is a schematic diagram of an antifreeze device according to an exemplary embodiment of the present disclosure.

[0022] Description of Reference Numerals

[0023] 10. Air compressor; 11. Drain pipe; 100. Steam turbine; 110. Air inlet pipe; 120. Exhaust pipe; 200. Generator; 300. Electric heating tape; 400. Coupling; 500. Frame. DETAILED DESCRIPTION

[0024] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0025] In this disclosure, unless otherwise stated, directional words such as "upper, lower, left, right" are used for the convenience of description and are defined according to the drawing direction of the corresponding drawings, and "inside, outside" are defined according to the contours of the corresponding parts. Terms such as "first, second" and the like used in this disclosure are used to distinguish one element from another and do not have order or importance. In addition, when the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0026] See also Figure 1 The embodiment of the present disclosure provides an antifreeze device for a drain pipe of an air compressor. The drain pipe 11 can be used to discharge the exhaust gas generated by the air compressor 10. The antifreeze device can include a steam turbine 100, a generator 200 and an electric heating belt 300. Among them, the steam turbine 100 can be provided with an intake pipe 110 for connecting to the drain pipe 11, and the exhaust gas enters the steam turbine 100 through the intake pipe 110, so as to drive the steam turbine 100 to work. The steam turbine 100 is a prior art and will not be specifically described here. The steam turbine 100 can also be provided with an exhaust pipe 120, and the exhaust gas after use can be discharged through the exhaust pipe 120. The generator 200 can be connected to the steam turbine 100 in a linkage manner so as to be driven by the steam turbine 100 to generate electricity. Specifically, when the steam turbine 100 rotates, it will drive the generator 200 to rotate synchronously, thereby generating electricity. The electric heating cable 300 can be electrically connected to the generator 200 so that the electric heating cable 300 is powered by the generator 200. The energized electric heating cable 300 can be used to heat the sewage pipe 11. For example, the electric heating cable 300 can be connected to the outlet box of the generator 200.

[0027] It is understandable that the air inlet pipe 110 of the steam turbine 100 is connected to the sewage pipe 11 of the air compressor 10, and the steam turbine 100 and the generator 200 are linked and connected. The exhaust gas discharged by the air compressor 10 will enter the steam turbine 100 through the air inlet pipe 110, so as to drive the steam turbine 100 to drive the generator 200 to rotate. The generator 200 can convert mechanical energy into electrical energy, which can supply power to the electric heating belt 300. The electric heating belt 300 can provide heat for the sewage pipe 11, avoiding the freezing of the exhaust gas in the sewage pipe 11, and ensuring that the exhaust gas can be smoothly discharged into the external environment. By setting up the steam turbine 100 and the generator 200, the kinetic energy of the useless exhaust gas can be converted into useful electrical energy, and there is no need to use an external power supply to supply power to the electric heating belt 300, which reduces the antifreeze cost and is environmentally friendly, which ensures the winter operation of the air compressor 10 and is conducive to improving the energy utilization rate of the air compressor 10.

[0028] In one embodiment, see Figure 1 The electric heating tape 300 can be at least spirally wound around the outer circumference of the sewage pipe 11 along the extension direction of the sewage pipe 11 to at least ensure that freezing does not occur at the sewage pipe 11.

[0029] For example, the electric heating cable 300 can be spirally wound around the outer periphery of the sewage pipe 11 to prevent the exhaust gas from freezing in the sewage pipe 11; or, refer to Figure 1 The electric heating tape 300 can be spirally wound around the outer periphery of the drain pipe 11 and the outer periphery of the steam turbine 100, can be wound around the outer periphery of the air intake pipe 110 of the steam turbine 100, and can also be wound around the outer periphery of the exhaust pipe 120 of the steam turbine 100, so as to comprehensively prevent the exhaust gas from being frozen at any position and ensure that the exhaust gas can be smoothly discharged into the external environment after passing through the drain pipe 11 and the steam turbine 100.

[0030] In one embodiment, see Figure 1 The ends of the air inlet pipe 110 and the ends of the drain pipe 11 may both be provided with mounting holes, and the drain pipe 11 and the air inlet pipe 110 may be detachably connected by fasteners respectively penetrating the mounting holes of the drain pipe 11 and the mounting holes of the air inlet pipe 110, so as to facilitate the disassembly and maintenance of both. The fasteners may be bolts or screws, etc., which are not specifically limited here. When installing or disassembling the steam turbine 100, it is necessary to close the valve on the drain pipe 11 first to avoid personal injury or interference with the installation or disassembly of the steam turbine 100 due to the discharge of exhaust gas.

[0031] In this implementation, see Figure 1 The antifreeze device may also include a coupling 400, which may be installed between the rotating shaft of the steam turbine 100 and the rotating shaft of the generator 200. The coupling 400 may effectively reduce the deviation, displacement and angular deviation of the shaft, reduce the vibration, noise and friction loss of the device, and improve the effect of the steam turbine 100 driving the generator 200 to operate.

[0032] In one embodiment, see Figure 1 The antifreeze device may further include a frame 500, and the steam turbine 100 and the generator 200 may be fixed on the frame 500 respectively. The frame may be fixedly connected to the ground to prevent the antifreeze device from shifting during operation. In addition, the frame 500 may provide a height for the steam turbine 100, so that the air intake pipe 110 and the sewage pipe 11 may be at the same height, thereby preventing the loss of exhaust gas pressure due to bending of the two at the intersection, and ensuring the working effect of the steam turbine 100.

[0033] Furthermore, the frame 500 can be configured to be height-adjustable, so that the steam turbine 100 can be adapted to the air compressor 10 of any height, thereby increasing the use range of the antifreeze device. For example, the frame 500 can include a base and a top seat, the base can be sleeved on the top seat and slidably connected to the outer periphery of the top seat, the base is provided with a fixing hole, and the top seat is provided with a plurality of limiting holes, and the plurality of limiting holes can be arranged at intervals along the height direction of the top seat, and the height of the frame 500 can be adjusted by limiting members respectively penetrating the fixing hole and one of the plurality of limiting holes.

[0034] In this implementation, see Figure 1 The generator 200 can be a DC generator. The DC generator has a simple mechanical structure and a relatively simple electrical part, so it is easy to maintain, has a long service life, and has high reliability, thereby ensuring the stability and reliability of the antifreeze device.

[0035] In one embodiment, see Figure 1 The generator 200 may be equipped with a warning light, and the electric heating belt 300 may be connected in series with the warning light. When the electric heating belt 300 is operating normally, the warning light may be always on. However, when the electric heating belt 300 is short-circuited or disconnected, the warning light may go out or flash, etc., to serve as a warning reminder, so that the technicians can repair or replace the electric heating belt 300 in time to ensure the heating effect of the electric heating belt 300. In addition, an alarm device may be provided, such as a sound alarm device or a remote alarm device, to improve the warning effect, ensure the timeliness of maintenance, and avoid the freezing of the sewage pipe and damage to the air compressor 10.

[0036] In the disclosed embodiments, please refer to Figure 1 , an external power supply can be set to connect with the electric heating belt 300, and when the generator 200 is in normal use, the external power supply does not work. When the generator 200 stops working, the external power supply is turned on to supply power to the electric heating belt, so as to avoid damage to the air compressor 10 due to untimely maintenance.

[0037] See also Figure 1 According to a second aspect of the embodiment of the present disclosure, an air compressor system is provided, which may include an air compressor 10 and an antifreeze device for a sewage pipe of an air compressor according to any one of the above embodiments, and an air intake pipe 110 of the air compressor 10 may be connected to the sewage pipe 11. The air compressor system may have all the beneficial effects of the antifreeze device for a sewage pipe of an air compressor, which will not be described in detail here.

[0038] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0039] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0040] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. An antifreeze device for a sewage pipe of an air compressor, wherein the sewage pipe is used to discharge the waste gas generated by the air compressor, characterized in that: The antifreeze device comprises: A steam turbine is provided with an air intake pipe connected to the sewage pipe, and the exhaust gas enters the steam turbine through the air intake pipe to drive the steam turbine to work; a generator, connected in linkage with the steam turbine so as to be driven by the steam turbine to generate electricity; and An electric heating tape is electrically connected to the generator and is used to provide heat for the sewage pipe.

2. The antifreeze device according to claim 1, characterized in that: The electric heating tape is at least spirally wound around the outer circumference of the sewage pipe along the extension direction of the sewage pipe.

3. The antifreeze device according to claim 2, characterized in that: The electric heating tape is spirally wound around the outer circumference of the steam turbine and the sewage pipe.

4. The antifreeze device according to claim 1, characterized in that: The ends of the air inlet pipe and the ends of the sewage pipe are both provided with mounting holes, and the sewage pipe and the air inlet pipe are detachably connected by fasteners respectively penetrating the mounting holes of the sewage pipe and the mounting holes of the air inlet pipe.

5. The antifreeze device according to claim 1, characterized in that: The antifreeze device also includes a coupling, which is installed between the rotating shaft of the steam turbine and the rotating shaft of the generator.

6. The antifreeze device according to claim 1, characterized in that: The antifreeze device also includes a frame, and the steam turbine and the generator are respectively fixed on the frame.

7. The antifreeze device according to claim 6, characterized in that: The rack is configured to be height-adjustable.

8. The antifreeze device according to claim 1, characterized in that: The generator is a DC generator.

9. The antifreeze device according to claim 1, characterized in that: A warning light is installed on the generator, and the electric heating tape is connected in series with the warning light.

10. An air compressor system, characterized in that: The air compressor system comprises an air compressor and an antifreeze device for a sewage pipe of the air compressor according to any one of claims 1 to 9, and the air intake pipe is connected to the sewage pipe.

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