Heat energy recovery device of screw air compressor

Abstract

The utility model is applicable to the field of screw air compressors, and provides a screw air compressor heat energy recovery device which comprises a case, a compression assembly arranged in the case and a heat recovery assembly arranged in the case, the case comprises a water tank, an air inlet, an air outlet, a liquid inlet and a liquid outlet, the compression assembly comprises a driving screw and a driven screw, and the heat recovery assembly comprises a heat recovery assembly. The heat recovery assembly comprises an air distribution plate, a plurality of heat dissipation pipes and an air collection pipe, the water tank is filled with water through a liquid inlet, air can be sucked from an air inlet during rotation by rotating a driving screw rod and a driven screw rod which are meshed with each other, and then the air is discharged into the air distribution plate from an air guide pipe after being rotationally compressed, so that the air pressure is increased, and the heat recovery efficiency is improved. The compressed high-temperature air releases heat through the heat dissipation pipe to enter water to heat the water, then heat energy of the air is recycled, the compressed air releasing the heat is discharged from the air outlet through the air collection pipe, and hot water is discharged from the liquid outlet.

Description

TECHNICAL FIELD

[0001] The utility model belongs to screw air compressor field especially relates to a screw air compressor heat energy recovery device. BACKGROUND

[0002] Screw air compressor is a kind of equipment using screw rotor to carry out air compression, usually referred to as screw air compressor. It is through the mutual rotation of two screws, air is sucked and compressed, with compact structure, stable operation and high efficiency etc. Screw air compressor is usually used in industrial production, pneumatic tool and spraying etc. field, because it can provide continuous high-quality compressed air, is widely used in manufacturing and construction industry.

[0003] In production, the continuous gas compression work of screw air compressor can produce a large amount of heat, and due to the compact structure of screw air compressor, the generated heat is relatively concentrated, and the existing air compressor does not have the function of recovering the heat energy of air compressor, the heat generated by air compressor is directly dissipated to air, and there is energy loss. UTILITY MODEL CONTENTS

[0004] The utility model embodiment purposes at providing a kind of screw air compressor heat energy recovery device, to solve the problem presented in background art.

[0005] The utility model embodiment is realized as follows, a kind of screw air compressor heat energy recovery device, including machine case, the compression component being arranged in machine case and the heat recovery component being arranged in machine case, the machine case includes water tank, screw box, air inlet, air outlet, liquid inlet and liquid outlet, the screw box is fixedly arranged in water tank, the air inlet and liquid inlet are fixedly installed in water tank one side, the air outlet and liquid outlet are installed in water tank other side, the compression component includes driving shaft, driven shaft, driving screw and driven screw, the driving screw and driven screw are movably arranged in screw box, the driving screw is fixedly installed on driving shaft, the driven screw and driving screw rotate and engage, the driven screw is fixedly installed on driven shaft, the heat recovery component includes gas distribution plate, multiple radiators, two mounting plates and gas collector, multiple through holes are arranged on the two mounting plates corresponding radiator, multiple radiators are installed on mounting plate in " S " shape, multiple fixed columns are arranged between the two mounting plates, the lower end of multiple radiators is fixedly connected with the upper end of gas distribution plate, the upper end of multiple radiators is fixedly connected with the lower end of gas collector, and the gas collector is fixedly connected with air outlet through water tank.

[0006] As a further scheme of the utility model: the water tank upper end is fixedly installed with gear cover, and the gear cover and water tank top form gear box, and the gear box is provided with driving gear and driven gear.

[0007] As a further scheme of the utility model: the driving shaft and driven shaft both ends are movably through the water tank, the driving gear is installed at one end of the driving shaft, the driven gear is installed at one end of the driven shaft, the driving gear and driven gear are in rotation engagement, one end of the driving shaft passes through the gear cover and extends to the outside of the gear cover and is connected with the external driving device.

[0008] As a further scheme of the utility model: the water tank is also fixedly provided with a partition plate, a plurality of communication holes are formed in the lower end of the partition plate, and a gap exists between the inner side of the water tank and the outer side of the screw rod tank.

[0009] As a further scheme of the utility model: the screw rod tank is fixedly provided with an air guide pipe on one side, the air guide pipe is fixedly connected with the partition plate and the air distribution plate, a plurality of heat dissipation fins are further arranged on the side surface of the screw rod tank, and notches are reserved in the heat dissipation fins corresponding to the air inlet and the air guide pipe.

[0010] As a further scheme of the utility model: a plurality of heat conduction plates are further fixedly arranged between the two mounting plates, and the heat conduction plates and the heat dissipation fins are both thin plates made of metal.

[0011] The utility model discloses beneficial effect lies in:

[0012] The screw air compressor heat energy recovery device provided by the utility model embodiment fills water in the water tank through the liquid inlet, absorbs air from the air inlet during rotation through the driving screw rod and driven screw rod in rotation engagement, discharges into the air distribution plate from the air guide pipe after rotation compression, thereby improving air pressure, and the high-temperature air after compression releases heat through the heat dissipation pipe and enters water to heat water, thereby recycling the heat energy of air, and the compressed air releasing heat is discharged from the air outlet through the gas collecting pipe, and hot water is discharged from the liquid outlet.

[0013] The screw air compressor heat energy recovery device provided by the utility model embodiment divides the space in the water tank into two areas through the partition plate, reduces the influence of high-temperature water in the space on the side of the heat recovery assembly on the low-temperature water on the side of the screw rod tank, thereby guaranteeing the cooling effect of the low-temperature water on the side of the screw rod tank on the screw rod tank, and the two areas separated by the partition plate are communicated through the communication hole, thereby facilitating the convection of liquid.

[0014] The screw air compressor heat energy recovery device provided by the utility model embodiment increases the surface area of the screw rod tank through the communication hole, improves the heat dissipation effect of the screw rod tank, reduces the possibility that the internal components of the screw rod tank are affected by thermal expansion, and improves the service life of the driving screw rod and the driven screw rod.

[0015] The screw air compressor heat energy recovery device provided by the utility model embodiment increases the heat dissipation area of the heat dissipation pipe through the heat conduction plate, thereby accelerating the heat dissipation speed of the hot air in the heat dissipation pipe and further improving the heat recovery effect. Attached Figure Description

[0016] Figure 1 A three-dimensional structural diagram of a heat recovery device for a screw air compressor provided in an embodiment of this utility model;

[0017] Figure 2 A cross-section of a screw air compressor heat recovery device provided in an embodiment of this utility model. Figure 1 ;

[0018] Figure 3 A cross-section of a screw air compressor heat recovery device provided in an embodiment of this utility model. Figure 2 ;

[0019] Figure 4 A cross-section of a screw air compressor heat recovery device provided in an embodiment of this utility model. Figure 3 ;

[0020] Figure 5 This is a schematic diagram of the structure of a heat recovery component of a screw air compressor heat energy recovery device provided in an embodiment of the present invention.

[0021] In the attached diagram: chassis 1, water tank 11, partition 111, connecting hole 112, screw box 12, heat sink 121, gear cover 13, air inlet 14, air guide pipe 15, air outlet 16, liquid inlet 17, liquid outlet 18, compression assembly 2, drive shaft 21, drive gear 22, driven gear 23, driven shaft 24, drive screw 25, driven screw 26, heat recovery assembly 3, air distribution plate 31, heat dissipation pipe 32, mounting plate 33, fixing column 34, heat spreader 35, and air collection pipe 36. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0024] like Figures 1 to 5As shown in the figure, the screw air compressor heat energy recovery device provided by the embodiment of the utility model, including case 1, set up in case 1's compression assembly 2 and set up in case 1's heat recovery assembly 3, case 1 includes water tank 11, screw tank 12, air inlet 14, air outlet 16, liquid inlet 17 and liquid outlet 18, screw tank 12 is fixedly arranged in water tank 11, air inlet 14 and liquid inlet 17 are fixedly installed in water tank 11 one side, air outlet 16 and liquid outlet 18 are installed in water tank 11 other side, compression assembly 2 includes driving shaft 21, driven shaft 24, driving screw 25 and driven screw 26, driving screw 25 and driven screw 26 are movably arranged in screw tank 12, driving screw 25 is fixedly installed on driving shaft 21, driven screw 26 and driving screw 25 are rotatably engaged, driven screw 26 is fixedly installed on driven shaft 24, heat recovery assembly 3 includes gas distribution plate 31, multiple radiators 32, two mounting plates 33 and gas collector 36, multiple through holes are formed in two mounting plates 33 corresponding to radiator 32, multiple radiators 32 are installed on mounting plate 33 in " S " shape, multiple fixing columns 34 are arranged between two mounting plates 33, lower end of multiple radiators 32 is fixedly connected with upper end of gas distribution plate 31, upper end of multiple radiators 32 is fixedly connected with lower end of gas collector 36, gas collector 36 is fixedly connected with air outlet 16 through water tank 11.

[0025] In the embodiment of the utility model, through liquid inlet 17 fills water in water tank 11, through the rotatable engagement of driving screw 25 and driven screw 26, air can be sucked from air inlet 14 when rotating, and then the compressed air is discharged into gas distribution plate 31 from gas guide pipe 15 after rotating compression, so as to improve air pressure, the high-temperature air after compression releases heat into water through radiator 32 to heat the water, and then the heat energy of air is recovered, the compressed air releasing heat is discharged from air outlet 16 through gas collector 36, and hot water is discharged from liquid outlet 18.

[0026] As shown in the figure, Figure 2 And Figure 3 As another embodiment of the utility model, gear cover 13 is fixedly installed on the upper end of water tank 11, gear cover 13 and the top end of water tank 11 form a gear box, driving gear 22 and driven gear 23 are arranged in the gear box.

[0027] Specifically, the both ends of driving shaft 21 and driven shaft 24 movably pass through water tank 11, driving gear 22 is installed on one end of driving shaft 21, driven gear 23 is installed on one end of driven shaft 24, driving gear 22 and driven gear 23 are rotatably engaged, one end of driving shaft 21 passes through gear cover 13 and extends to the outside of gear cover 13 and is connected with external driving device.

[0028] In an embodiment of the utility model, through setting up the driving gear 22 and the driven gear 23 are engaged with each other, through the external driving device drives the driving shaft 21 rotation and drives the driven shaft 24 rotation, guarantee the driving screw 25 and the driven screw 26 synchronous rotation, simultaneously, the gear cover 13 also can be used for protecting the driving gear 22 and the driven gear 23, prevent the driving gear 22 and the driven gear 23 friction damage.

[0029] As Figure 2 And Figure 4 As another embodiment of the utility model, the water tank 11 is also fixedly provided with a partition plate 111, a plurality of communication holes 112 are formed in the lower end of the partition plate 111, and there is a gap between the inner side of the water tank 11 and the outer side of the screw tank 12.

[0030] In an embodiment of the utility model, the space in the water tank 11 is divided into two areas by the partition plate 111, which reduces the influence of high-temperature water in the space on the low-temperature water on the side of the screw tank 12, thereby ensuring the cooling effect of the low-temperature water on the side of the screw tank 12 on the screw tank 12, and the two areas separated by the partition plate 111 are connected through the communication holes 112, facilitating the convection of the liquid.

[0031] As Figure 4 As another embodiment of the utility model, the screw tank 12 is fixedly installed with an air guide pipe 15 on one side, the air guide pipe 15 is fixedly connected with the air distribution plate 31 through the partition plate 111, and a plurality of heat dissipation fins 121 are arranged on the side surface of the screw tank 12.

[0032] In an embodiment of the utility model, the heat dissipation fins 121 are arranged to increase the surface area of the screw tank 12, improve the heat dissipation effect of the screw tank 12, reduce the possibility of the internal components of the screw tank 12 being affected by thermal expansion, and prolong the service life of the driving screw 25 and the driven screw 26.

[0033] As Figure 4 And Figure 5 As another embodiment of the utility model, a plurality of heat evenly plates 35 are fixedly arranged between the two mounting plates 33, and the heat evenly plates 35 and the heat dissipation fins 121 are both made of metal thin plates.

[0034] In an embodiment of the utility model, the heat evenly plates 35 are arranged to increase the heat dissipation area of the heat dissipation pipe 32, accelerate the heat dissipation speed of the hot air in the heat dissipation pipe 32, and further improve the heat recovery effect.

[0035] It is apparent that a person skilled in the art can, without departing from the scope of the application, make many modifications to the details of the exemplary embodiments described above and that such modifications would be encompassed by the scope of the application. Accordingly, the application is to be considered as limited only by the scope of the appended claims, and it is therefore intended to embrace all such changes and modifications in the scope of the application. Any reference signs in the claims should not be construed as limiting the scope of the claims.

[0036] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0037] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features with "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0038] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0039] In addition, it should be understood that although the present application is described in the form of embodiments, each embodiment does not contain only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A screw air compressor heat energy recovery device, comprising a machine box (1), a compression assembly (2) arranged in the machine box (1), and a heat recovery assembly (3) arranged in the machine box (1), characterized in that, The case (1) comprises a water tank (11), a screw tank (12), an air inlet (14), an air outlet (16), a liquid inlet (17) and a liquid outlet (18), the screw tank (12) is fixedly arranged in the water tank (11), the air inlet (14) and the liquid inlet (17) are fixedly installed on one side of the water tank (11), the air outlet (16) and the liquid outlet (18) are installed on the other side of the water tank (11), the compression assembly (2) comprises a driving shaft (21), a driven shaft (24), a driving screw (25) and a driven screw (26), the driving screw (25) and the driven screw (26) are movably arranged in the screw tank (12), the driving screw (25) is fixedly installed on the driving shaft (21), the driven screw (26) is rotatably engaged with the driving screw (25), and the driven screw (26) is fixedly installed on the driven shaft (24), the heat recovery assembly (3) comprises a gas distribution plate (31), a plurality of heat dissipation pipes (32), two mounting plates (33) and a gas collecting pipe (36), a plurality of through holes are formed in the two mounting plates (33) corresponding to the heat dissipation pipes (32), the plurality of heat dissipation pipes (32) are arranged in an "S" shape on the mounting plates (33), a plurality of fixing columns (34) are arranged between the two mounting plates (33), the lower ends of the plurality of heat dissipation pipes (32) are fixedly connected to the upper end of the gas distribution plate (31), the upper ends of the plurality of heat dissipation pipes (32) are fixedly connected to the lower end of the gas collecting pipe (36), and the gas collecting pipe (36) is fixedly connected to the air outlet (16) through the water tank (11).

2. A screw air compressor heat recovery device according to claim 1, characterized in that, The upper end of the water tank (11) is fixedly provided with a gear cover (13), and the gear cover (13) and the top end of the water tank (11) form a gear box, wherein the gear box is provided with a driving gear (22) and a driven gear (23).

3. A screw air compressor heat recovery device according to claim 2, wherein, Both ends of the driving shaft (21) and the driven shaft (24) movably pass through the water tank (11), the driving gear (22) is installed on one end of the driving shaft (21), the driven gear (23) is installed on one end of the driven shaft (24), the driving gear (22) and the driven gear (23) are rotatably engaged, and one end of the driving shaft (21) passes through the gear cover (13) and extends to the outside of the gear cover (13) and is connected with an external driving device.

4. A screw air compressor heat recovery device according to claim 1, wherein, The water tank (11) is further provided with a partition plate (111), a plurality of communication holes (112) are formed in the lower end of the partition plate (111), and there is a gap between the inner side of the water tank (11) and the outer side of the screw tank (12).

5. A screw air compressor heat recovery device according to claim 4, wherein, One side of the screw tank (12) is fixedly provided with an air guide pipe (15), the air guide pipe (15) is fixedly connected to the gas distribution plate (31) through the partition plate (111), and the side of the screw tank (12) is further provided with a plurality of heat dissipation fins (121).

6. A screw air compressor heat recovery device according to claim 5, wherein, A plurality of uniform heating plates (35) are further fixedly arranged between the two mounting plates (33), and the uniform heating plates (35) and the heat dissipation fins (121) are both made of metal thin plates.

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