Heat energy recovery device of air compressor

Abstract

The utility model provides an air compressor heat energy recovery device which comprises a heat energy recovery water tank, an air compressor pipeline is fixedly connected in the heat energy recovery water tank, the air compressor pipeline comprises a plurality of vertical pipes arranged at intervals, every two adjacent vertical pipes are communicated through a horizontal pipe, and the air compressor heat energy recovery device further comprises a vertical cleaning assembly and a horizontal cleaning assembly. The vertical cleaning assembly comprises a vertical scraping plate movably arranged outside the multiple vertical pipes in a sleeving mode and a lifting mechanism connected to the top of the heat energy recycling water tank, and the vertical scraping plate is connected with the lifting mechanism. The horizontal cleaning assembly comprises a horizontal scraper movably arranged outside the multiple horizontal pipes in a sleeving mode and a horizontal moving mechanism connected to the side wall of the heat energy recycling water tank, and the horizontal scraper is connected with the horizontal moving mechanism. According to the heat energy recovery device of the air compressor, the vertical cleaning assembly is matched with the horizontal cleaning assembly, water scale outside the coil pipe can be effectively removed, and the problems that heat conduction of the air compressor pipeline is affected and the heat energy recovery efficiency is reduced due to the fact that the water scale outside the air compressor pipeline is stacked and thickened for a long time are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to air compressor technology field, specifically, relate to a kind of air compressor heat recovery device. BACKGROUND

[0002] Air compressor (abbreviation air compressor) is essentially energy conversion equipment that promotes gas pressure by mechanical action, and its core function is to convert the mechanical energy input by prime mover (such as motor, internal combustion engine) into gas potential energy with high pressure. According to the difference of compression mechanism structure and working principle, modern air compressor is mainly divided into three categories of reciprocating piston type, rotary vane type and rotary screw type. And in the energy conversion process, the thermodynamic characteristics of air compressor lead to significant energy loss problem. According to the law of conservation of energy, about 80%-90% of the mechanical energy input into the system is dissipated in the form of heat energy, except for the conversion into the pressure energy of compressed gas. This energy dissipation is mainly caused by two links: one is the temperature rise caused by the friction of mechanical parts, and the other is the compression heat generated in the gas compression process according to the law of thermodynamics. Taking a typical screw air compressor as an example, the temperature of the gas can rise to 80-100℃ during compression, and if it is directly discharged, it will cause great energy waste. Industry data shows that the annual power consumption of industrial air compressor in China accounts for about 9.2% of the total industrial power consumption, of which more than 50% of the energy is dissipated in the form of waste heat. In order to reduce waste heat and improve the overall energy utilization rate, the existing technology such as the patent document with publication number CN209430365U discloses an air compressor unit heat recovery system, which has the advantages of being able to intelligently recover the heat generated by the air compressor unit according to the change of working environment, providing hot water for production and life through heat exchange, avoiding energy waste, and improving recovery efficiency, but the external coil of the heat exchanger in this device is not convenient to clean, so that when dirt accumulates or scale is formed on the external coil, it will affect the heat transfer effect, therefore, we provide an air compressor heat recovery device. UTILITY MODEL CONTENT

[0003] Therefore, in order to solve one of the technical problems in the background art, the utility model provides an air compressor heat recovery device, and the specific technical scheme is as follows:

[0004] The utility model provides an air compressor heat energy recovery device, including heat energy recovery water tank, fixedly connected with air compressor pipeline in heat energy recovery water tank, air compressor pipeline includes the vertical pipe of interval arrangement, and the horizontal pipe is connected through between two adjacent vertical pipes, still include vertical cleaning subassembly and horizontal cleaning subassembly, vertical cleaning subassembly includes the vertical scraper of movable sleeve in the outside of multiple vertical pipe and the lifting mechanism connected in heat energy recovery water tank top, vertical scraper with lifting mechanism is connected, horizontal cleaning subassembly includes the horizontal scraper of movable sleeve in the outside of multiple horizontal pipe and the horizontal moving mechanism connected in heat energy recovery water tank lateral wall, horizontal scraper with horizontal moving mechanism is connected.

[0005] The vertical cleaning subassembly and the horizontal cleaning subassembly can effectively remove the scale outside the coil, avoid the scale outside the air compressor pipeline from accumulating for a long time and thickening, affect the heat conduction of the air compressor pipeline, and reduce the heat energy recovery efficiency.

[0006] In one embodiment of the utility model, the lifting mechanism includes a fixed frame, a winding disc, a wire harness, and a motor. The fixed frame is fixedly connected to the top inner wall of the heat energy recovery water tank. The winding disc is fixedly connected to the fixed frame. One end of the wire harness is wound on the winding disc. The other end of the wire harness is connected to the vertical scraper. The motor is drivingly connected to the winding disc.

[0007] In one embodiment of the utility model, the lifting mechanism further includes a first permanent magnet and a second permanent magnet. The rotating shaft of the winding disc is connected to the first permanent magnet. The second permanent magnet is connected to the output shaft of the motor. The top of the heat energy recovery water tank is recessed downward to form a groove for mounting the motor. The motor is connected to the groove. One side of the groove in the heat energy recovery water tank has a first mounting position. The other side of the groove outside the heat energy recovery water tank has a second mounting position. The first mounting position corresponds to and is adapted to the second mounting position. The first permanent magnet is connected to the first mounting position. The second permanent magnet is connected to the second mounting position. The first permanent magnet is magnetically connected to the second permanent magnet.

[0008] In one embodiment of the utility model, the second mounting position is convex and arranged towards the inside of the heat energy recovery water tank. The first mounting position is concave and arranged towards the outside of the heat energy recovery water tank. The second permanent magnet has a cylindrical structure. The first permanent magnet has a ring structure. When the first permanent magnet is located in the first mounting position and the second permanent magnet is located in the second mounting position, the second permanent magnet is sleeved outside the first permanent magnet.

[0009] In one of the embodiments of the utility model, the horizontal pipe includes top horizontal pipe and bottom horizontal pipe, the top horizontal pipe is connected to the top end of two adjacent vertical pipes, the bottom horizontal pipe is connected to the bottom end of two adjacent vertical pipes.

[0010] In one of the embodiments of the utility model, the horizontal scraper is matched with multiple top horizontal scrapers and multiple bottom horizontal scrapers, the top horizontal scraper is matched with one set of top horizontal pipe, the bottom horizontal scraper is matched with one set of bottom horizontal pipe, the same side of multiple top horizontal scrapers is connected through the first connecting rod, the same side of multiple bottom horizontal scrapers is connected through the second connecting rod, the horizontal moving mechanism includes top electric push rod and bottom electric push rod, the top electric push rod is sealingly connected to one side wall of the heat energy recovery water tank and is connected with the first connecting rod, the bottom electric push rod is sealingly connected to the other side wall of the heat energy recovery water tank opposite to the top electric push rod and is connected with the second connecting rod.

[0011] In one of the embodiments of the utility model, the air compressor heat energy recovery device further includes a blowdown assembly, the blowdown assembly includes a water outlet pipe, a filter box and a filter plate, the water outlet pipe is connected to the bottom of the heat energy recovery water tank, the filter box is communicated with the water outlet pipe, and the filter plate is vertically arranged in the filter box.

[0012] In one of the embodiments of the utility model, the blowdown assembly further includes a blowdown pipe and a drain pipe connected to the bottom of the filter box on both sides, first and second valves are respectively installed on the blowdown pipe and the drain pipe, the blowdown pipe and the water outlet pipe are both connected to the same side in the filter box, the drain pipe is connected to the other side in the filter box, and the filter plate separates the filter box part between the blowdown pipe and the drain pipe.

[0013] In one of the embodiments of the utility model, the heat energy recovery water tank is further connected with a water injection pipe.

[0014] Compared with the prior art, the utility model has the advantages of the following:

[0015] 1. The vertical cleaning assembly and the horizontal cleaning assembly can effectively remove the scale outside the coil pipe, avoid the long-term accumulation of scale outside the air compressor pipe to affect the heat conduction of the air compressor pipe, and reduce the heat energy recovery efficiency.

[0016] 2. The first permanent magnet and the second permanent magnet are used to magnetically couple to form a coupling without contact, at this time, the motor drives the rotating shaft of the winding disc to rotate, thereby driving the wire harness to move, and then driving the vertical scraper to move, thereby ensuring the sealing property. BRIEF DESCRIPTION OF DRAWINGS

[0017] The present application can be further understood from the following description taken in conjunction with the accompanying drawings. The components in the drawings are not necessarily drawn to scale, emphasis instead being placed upon illustrating the principles of the embodiments. In different views, identical reference numerals designate corresponding parts.

[0018] Figure 1 is a structural schematic view of a heat energy recovery device of an air compressor in an embodiment of the present application.

[0019] Figure 2 is an enlarged structural schematic view of part A in Figure 1

[0020] Figure 3 is a structural schematic view of a blowdown assembly of a heat energy recovery device of an air compressor in an embodiment of the present application.

[0021] Explanation of reference numerals:

[0022] 100, heat energy recovery water tank; 110, groove; 111, first mounting position; 112, second mounting position; 120, water injection pipe; 210, vertical pipe; 221, top horizontal pipe; 222, bottom horizontal pipe; 310, vertical scraper; 321, fixing frame; 322, winding disc; 323, wire harness; 324, motor; 325, rotating shaft; 326, first permanent magnet; 327, second permanent magnet; 411, top horizontal scraper; 412, bottom horizontal scraper; 421, top electric push rod; 422, bottom electric push rod; 431, first connecting rod; 432, second connecting rod; 510, water outlet pipe; 520, filter box; 530, filter plate; 540, blowdown pipe; 550, drain pipe; 560, first valve; 570, second valve. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application will be further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the protection scope of the present application.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this description, the singular forms "a", "an" and "the" include plural references unless the context clearly dictates otherwise.

[0025] Reference Figure 1 and Figure 2 ​As shown, an air compressor heat recovery device according to one embodiment of the present invention includes a heat recovery water tank 100, in which an air compressor pipeline is fixedly connected. The air compressor pipeline includes multiple vertical pipes 210 spaced apart, and adjacent vertical pipes 210 are connected by a horizontal pipe. The device also includes a vertical cleaning component and a horizontal cleaning component. The vertical cleaning component includes a vertical scraper 310 movably sleeved on the multiple vertical pipes 210 and a lifting mechanism connected to the top of the heat recovery water tank 100. The vertical scraper 310 is connected to the lifting mechanism. The horizontal cleaning component includes a horizontal scraper movably sleeved on the multiple horizontal pipes and a horizontal moving mechanism connected to the side wall of the heat recovery water tank. The horizontal scraper is connected to the horizontal moving mechanism.

[0026] The aforementioned air compressor heat recovery device, through the combination of vertical and horizontal cleaning components, can effectively remove scale from the outside of the coils, preventing scale from accumulating and thickening on the outside of the air compressor pipes over a long period of time, thus affecting the heat conduction of the air compressor pipes and reducing the heat recovery efficiency.

[0027] In some specific embodiments of this utility model, it may also have the following additional technical features: the lifting mechanism includes a fixed frame 321, a winding reel 322, a wire harness 323, and a motor 324. The fixed frame 321 is fixedly connected to the top inner wall of the heat energy recovery water tank 100. The winding reel 322 is fixedly connected to the fixed frame 321. One end of the wire harness 323 is wound on the winding reel 322, and the other end of the wire harness 323 is connected to the vertical scraper 310. The motor 324 is drivenly connected to the winding reel 322.

[0028] In some specific embodiments of this utility model, it may also have the following additional technical features: the lifting mechanism further includes a first permanent magnet 326 and a second permanent magnet 327; the rotating shaft 325 of the winding reel 322 is connected to the first permanent magnet 326; the second permanent magnet 327 is connected to the output shaft of the motor 324; the top of the heat recovery water tank 100 is recessed downward to form a groove 110 for installing the motor 324; the motor 324 is connected in the groove 110; the side of the groove 110 located inside the heat recovery water tank 100 has a first mounting position 111; the side of the groove 110 located outside the heat recovery water tank 100 has a second mounting position 112; the first mounting position 111 and the second mounting position 112 are correspondingly adapted; the first permanent magnet 326 is connected in the first mounting position 111; the second permanent magnet 327 is connected in the second mounting position 112; and the first permanent magnet 326 and the second permanent magnet 327 are magnetically connected.

[0029] In some specific embodiments of the utility model, it can further have the following additional technical features: the second installation site 112 is protruding towards the inside of the heat energy recovery water tank 100, the first installation site 111 is recessed towards the outside of the heat energy recovery water tank 100, the second permanent magnet 327 is cylindrical structure, the first permanent magnet 326 is circular ring structure, when the first permanent magnet 326 is located in the first installation site 111 and the second permanent magnet 327 is located in the second installation site 112, the second permanent magnet 327 is sleeved on the periphery of the first permanent magnet 326.

[0030] By using the first permanent magnet 326 and the second permanent magnet 327 to magnetically couple to form a coupling without contact, when the motor 324 drives the rotating shaft 325 of the winding disc 322 to rotate and drives the wire harness 323 to move, the vertical scraper 310 is moved, thereby ensuring the sealing property.

[0031] It should be noted that the first permanent magnet 326 and the second permanent magnet 327 can use the technical solutions commonly used in the prior art, such as neodymium iron boron magnet, which will not be described here.

[0032] In some specific embodiments of the utility model, it can further have the following additional technical features: the horizontal pipe includes a top horizontal pipe 221 and a bottom horizontal pipe 222, the top horizontal pipe 221 is connected to the top end of two adjacent vertical pipes 210, and the bottom horizontal pipe 222 is connected to the bottom end of two adjacent vertical pipes 210.

[0033] In some specific embodiments of the utility model, it can further have the following additional technical features: the horizontal scraper is adapted to include a plurality of top horizontal scrapers 411 and a plurality of bottom horizontal scrapers 412, the top horizontal scrapers 411 are adapted to be sleeved on the outside of the top horizontal pipe 221, the bottom horizontal scrapers 412 are adapted to be sleeved on the outside of the bottom horizontal pipe 222, the same side of the plurality of top horizontal scrapers 411 is connected by a first connecting rod 431, and the same side of the plurality of bottom horizontal scrapers 412 is connected by a second connecting rod 432; the horizontal moving mechanism includes a top electric push rod 421 and a bottom electric push rod 422, the top electric push rod 421 is sealingly connected to one of the side walls of the heat energy recovery water tank and connected to the first connecting rod 431, and the bottom electric push rod 422 is sealingly connected to the other side wall of the heat energy recovery water tank opposite to the top electric push rod 421 and connected to the second connecting rod 432.

[0034] It should be noted that the wire harness 323, the top horizontal scraper 411 and the first connecting rod 431 are not interfered with.

[0035] In some embodiments of the utility model, the vertical scraper 310 is provided with a clearance position matched with the top horizontal scraper 411 and the bottom horizontal scraper 412. Through the above design, the vertical scraper 310 can not interfere with the top horizontal scraper 411 when reaching the top of the vertical pipe 210, and can not interfere with the bottom horizontal scraper 412 when reaching the bottom of the vertical pipe 210.

[0036] Reference Figure 1 And Figure 3 In some embodiments of the utility model, the air compressor heat recovery device further comprises a blowdown assembly, the blowdown assembly comprises a water outlet pipe 510, a filter box 520 and a filter plate 530, the water outlet pipe 510 is connected to the bottom of the heat recovery water tank 100, the filter box 520 is communicated with the water outlet pipe 510, and the filter plate 530 is vertically arranged in the filter box 520.

[0037] In some embodiments of the utility model, the blowdown assembly further comprises a blowdown pipe 540 and a drain pipe 550 connected to the bottom of the filter box 520 on both sides, the blowdown pipe 540 and the drain pipe 550 are respectively provided with a first valve 560 and a second valve 570, the blowdown pipe 540 and the water outlet pipe 510 are connected to the same side in the filter box 520, the drain pipe 550 is connected to the other side in the filter box 520, and the filter box 520 part between the blowdown pipe 540 and the drain pipe 550 is separated by the filter plate 530.

[0038] Through the above design, the existence of the filter plate 530 can filter dirt, so that when the first valve 560 is closed and the second valve 570 is screwed, the drain pipe 550 can discharge water meeting the requirements; and after the vertical cleaning assembly and the horizontal cleaning assembly complete the cleaning work of the coil, the second valve 570 is closed and the first valve 560 is screwed, then the blowdown pipe 540 can discharge dirt.

[0039] In some embodiments of the utility model, the heat recovery water tank 100 is further connected with a water injection pipe 120.

[0040] Working principle:

[0041] When the coil needs to be cleaned, the motor 324, the top electric push rod 421 and the bottom electric push rod 422 are started, the motor 324 is connected through the magnetic coupling of the first permanent magnet 326 and the second permanent magnet 327, so as to drive the rotating shaft 325 of the winding disc 322 to rotate, and then drive the wire harness 323 to move, drive the vertical scraper 310 to move vertically and scrape off the scale on the outer periphery of the vertical pipe 210, while the top electric push rod 421 drives the first connecting rod 431 to move horizontally, and then drives the plurality of top horizontal scrapers 411 to move, and finally scrapes off the scale on the outer periphery of the top horizontal pipe 221, at this time, the vertical scraper 310 and the top horizontal scraper 411 do not interfere with each other; at the same time, the bottom electric push rod 422 performs the same operation to drive the bottom horizontal scraper 412 to scrape off the scale on the outer periphery of the bottom horizontal pipe 222, at this time, the vertical scraper 310 and the bottom horizontal scraper 412 do not interfere with each other, through the above operation, the scale on the outer periphery of the coil can be effectively removed, and the influence on heat exchange is avoided.

[0042] The technical features of the above-described embodiments can be combined in any manner, and to make the description concise, all possible combinations of the technical features in the above-described embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, it should be considered that it is within the scope of the present application.

[0043] The above-described embodiments only express several implementation manners of the present application, the description is more specific and detailed, but it should not be understood as the limitation of the scope of the present application. It should be pointed out that, for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application patent should be subject to the appended claims.

Claims

1. An air compressor heat energy recovery device, comprising a heat energy recovery water tank (100), wherein an air compressor pipeline is fixedly connected to the heat energy recovery water tank (100), the air compressor pipeline comprising a plurality of vertical pipes (210) spaced apart, and adjacent vertical pipes (210) being connected by a horizontal pipe, characterized in that, It also includes a vertical cleaning component and a horizontal cleaning component. The vertical cleaning component includes a vertical scraper (310) movably sleeved on the outside of the multiple vertical pipes (210) and a lifting mechanism connected to the top of the heat recovery water tank (100). The vertical scraper (310) is connected to the lifting mechanism. The horizontal cleaning component includes a horizontal scraper movably sleeved on the outside of the multiple horizontal pipes and a horizontal moving mechanism connected to the side wall of the heat recovery water tank. The horizontal scraper is connected to the horizontal moving mechanism.

2. The air compressor heat recovery device according to claim 1, characterized in that, The lifting mechanism includes a fixed frame (321), a winding reel (322), a wire harness (323), and a motor (324). The fixed frame (321) is fixedly connected to the top inner wall of the heat recovery water tank (100). The winding reel (322) is fixedly connected to the fixed frame (321). One end of the wire harness (323) is wound on the winding reel (322), and the other end of the wire harness (323) is connected to the vertical scraper (310). The motor (324) is driven by the winding reel (322).

3. The air compressor heat recovery device according to claim 2, characterized in that, The lifting mechanism further includes a first permanent magnet (326) and a second permanent magnet (327). The rotating shaft (325) of the winding reel (322) is connected to the first permanent magnet (326), and the second permanent magnet (327) is connected to the output shaft of the motor (324). The top of the heat recovery water tank (100) is recessed downward to form a groove (110) for installing the motor (324). The motor (324) is connected in the groove (110), and the groove (110) is located in the heat recovery water tank. The groove (110) has a first mounting position (111) on one side inside the heat recovery water tank (100), and a second mounting position (112) on the side outside the heat recovery water tank (100). The first mounting position (111) and the second mounting position (112) are adapted to each other. The first permanent magnet (326) is connected to the first mounting position (111), and the second permanent magnet (327) is connected to the second mounting position (112). The first permanent magnet (326) and the second permanent magnet (327) are magnetically connected.

4. The air compressor heat recovery device according to claim 3, characterized in that, The second mounting position (112) is protruding towards the inside of the heat recovery water tank (100), and the first mounting position (111) is recessed towards the outside of the heat recovery water tank (100). The second permanent magnet (327) is cylindrical, and the first permanent magnet (326) is annular. When the first permanent magnet (326) is located at the first mounting position (111) and the second permanent magnet (327) is located at the second mounting position (112), the second permanent magnet (327) is sleeved on the outer periphery of the first permanent magnet (326).

5. The air compressor heat recovery device according to claim 1, characterized in that, The horizontal tube includes a top horizontal tube (221) and a bottom horizontal tube (222). The top horizontal tube (221) is connected to the top of two adjacent vertical tubes (210), and the bottom horizontal tube (222) is connected to the bottom of two adjacent vertical tubes (210).

6. The air compressor heat recovery device according to claim 5, characterized in that, The horizontal scraper assembly includes multiple top horizontal scrapers (411) and multiple bottom horizontal scrapers (412). The top horizontal scrapers (411) are fitted onto the outside of the top horizontal pipe (221), and the bottom horizontal scrapers (412) are fitted onto the outside of the bottom horizontal pipe (222). The same side of the multiple top horizontal scrapers (411) is connected by a first connecting rod (431), and the same side of the multiple bottom horizontal scrapers (412) is connected by a second connecting rod (432). The horizontal moving mechanism includes a top electric push rod (421) and a bottom electric push rod (422). The top electric push rod (421) is sealed and connected to one side wall of the heat recovery water tank and connected to the first connecting rod (431). The bottom electric push rod (422) is sealed and connected to the other side wall of the heat recovery water tank opposite to the top electric push rod (421) and connected to the second connecting rod (432).

7. The air compressor heat recovery device according to claim 1, characterized in that, The air compressor heat recovery device also includes a sewage discharge component, which includes a water outlet pipe (510), a filter box (520), and a filter plate (530). The water outlet pipe (510) is connected to the bottom of the heat recovery water tank (100), the filter box (520) is connected to the water outlet pipe (510), and the filter plate (530) is vertically arranged in the filter box (520).

8. The air compressor heat recovery device according to claim 7, characterized in that, The sewage discharge assembly also includes a sewage pipe (540) and a drain pipe (550) connected to both sides of the bottom of the filter box (520). A first valve (560) and a second valve (570) are respectively installed on the sewage pipe (540) and the drain pipe (550). The sewage pipe (540) and the water outlet pipe (510) are both connected to the same side of the filter box (520), and the drain pipe (550) is connected to the other side of the filter box (520). The filter box (520) portion between the sewage pipe (540) and the drain pipe (550) is separated by the filter plate (530).

9. The air compressor heat recovery device according to claim 1, characterized in that, The heat recovery water tank (100) is also connected to a water injection pipe (120).

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