Pavement drying equipment

Abstract

The embodiment discloses road surface drying equipment which comprises a rack, a walking device arranged at the bottom of the rack, an air supply device installed on the rack and an air guide cover, the air guide cover is arranged on the front side of the rack and provided with an air inlet and an air outlet, the air inlet is in fluid communication with the air supply device, and the air outlet discharges air to a road surface to be dried. An air guide space is formed in the air guide cover, the air guide space inclines downwards in the advancing direction of the pavement drying equipment and guides air used for drying the pavement, the width of the cross section of the air guide space is gradually increased from back to front, and the height of the cross section of the air guide space is gradually decreased. Compared with the prior art, the air guide space with the cross section gradually increasing in width and gradually decreasing in height from back to front is designed, and after air enters the air guide space from the air inlet, originally concentrated airflow can be diffused in the width direction under extrusion of the special shape of the air guide space; the requirement for uniform air outlet under the condition that the air outlet area is large is met, and finally the pavement drying efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to road engineering technical field, concretely relates to a pavement drying equipment. BACKGROUND

[0002] In the current highway pavement and airport pavement repair engineering, the original damaged pavement needs to be crushed and cleaned, which will leave a large area of accumulated water at the pavement repair place, affecting the subsequent operation, so the pavement area water needs to be dried.

[0003] The existing pavement drying device, such as the road engineering pavement drying equipment disclosed in the Chinese utility model patent with the application number 202223402558.1, has a blowing piece, a plurality of high-pressure air nozzles are arranged on the blowing piece, the high-pressure air nozzles are arranged obliquely downward along the forward direction of the drying equipment body, and an included angle of 30-60° is formed between the high-pressure air nozzles and the ground. The accumulated water is always blown forward under the blowing of the high-pressure air nozzles, thereby avoiding the secondary pollution of the already dried pavement caused by the backflow of the accumulated water.

[0004] However, the drying efficiency of the device in actual application still needs to be improved. The width of the blowing piece exceeds the width of the drying equipment body by 10-20 cm, and the high-pressure air nozzles are arranged along the width direction. Although this design expands the operation range, the air supply pipe concentrates air supply to the middle part of the blowing piece, which causes the air volume of the high-pressure air nozzles on both sides to be insufficient compared with the high-pressure air nozzles in the middle part, resulting in the phenomenon that the drying effect at both ends is weaker than that at the center part, which directly affects the uniformity of the pavement drying, causes some areas to need additional time to complete drying, and reduces the overall drying efficiency.

[0005] With the increase of the pavement laying area of the highway pavement and the airport pavement and the increase of the use time, the road surface repair engineering will be more and more, so the existing pavement drying equipment needs to be further improved to improve the drying efficiency, speed up the operation progress, and save the construction time. UTILITY MODEL CONTENTS

[0006] The utility model solves the technical problem in the prior art by providing a pavement drying equipment with large air outlet area and uniform air outlet.

[0007] The utility model adopts the technical scheme that a pavement drying equipment comprises a rack, a walking device arranged at the bottom of the rack, a gas supply device mounted on the rack, and a wind guide cover, the wind guide cover is arranged at the front side of the rack, has an air inlet and an air outlet, the air inlet is in fluid communication with the gas supply device, and the air outlet blows air to the pavement to be dried, characterized in that a wind guide space is formed in the wind guide cover, the wind guide space is inclined downward along the forward direction of the pavement drying equipment, and the wind guide space guides the gas used for drying the pavement, the cross section of the wind guide space gradually increases in width from back to front, and gradually decreases in height.

[0008] In order to further guide the concentrated airflow entering from the air inlet to both sides, preferably, the air deflector has a primary air deflector plate inside, which guides the airflow to both sides of the width of the air deflection space.

[0009] Preferably, the primary air deflector plate is a V-shaped air deflector plate, the V-shaped tip of which faces the air inlet, and the V-shaped opening part faces the air outlet.

[0010] In order to further improve the effect of air expansion to both sides, the utility model can also be provided with a hierarchical air deflection structure, preferably, the air deflector also has a secondary air deflector plate inside, which is arranged on the front side of the primary air deflector plate, and the secondary air deflector plate has at least one air deflection direction which is towards one side of the width of the air deflection space which is close to the secondary air deflector plate.

[0011] Specifically, the secondary air deflector plate is a V-shaped air deflector plate or a single-piece air deflector plate. When the secondary air deflector plate is a V-shaped air deflector plate, it has two air deflection directions, one of which is towards the side of the width of the air deflection space which is close to itself, and the other of which is towards the middle of the air outlet; when the secondary air deflector plate is a single-piece air deflector plate, it has only one air deflection direction, which is towards the side of the width of the air deflection space which is close to itself.

[0012] Generally, the air deflector of the utility model has only a single air inlet, and when the required drying area is larger, the air deflector structure of the utility model can be upgraded to provide a large-area air outlet system according to the expansion of the drying area. Specifically, the air deflector has a plurality of air inlets, and at least one primary air deflector plate is arranged in front of each air inlet, and at least two secondary air deflector plates are arranged in front of each primary air deflector plate.

[0013] The air outlet can be a plurality of high-pressure air nozzles or other structures as described in the background art, but in order to maximize the air outlet area, preferably, the air outlet is opened at the front end of the air deflector, and the air outlet is in the form of a strip and extends in the same direction as the width direction of the air deflection space.

[0014] In order to make the gas flow out of the air outlet and keep flowing forward and downward, avoiding the gas rising and causing loss of drying efficiency, preferably, the air deflector also has a pressure plate arranged above the front side of the air outlet.

[0015] As a preferred embodiment, the gas supply device is connected to the air inlet of the air deflector through a metal flexible pipe. The metal flexible pipe can ensure smooth flow while reducing the impact of mechanical vibration on the air outlet.

[0016] As a preferred embodiment, the gas supply device is a combustion jet device. As a hot air generator, the combustion jet device can directly integrate the functions of the gas heating device and the gas driving device.

[0017] Compared with the prior art, the utility model discloses the cross section of the air -guiding space gradually increases width gradually, and the height gradually reduces from back to front, and after gas enters the air -guiding space from the air inlet, the originally concentrated airflow will spread in the width direction under the extrusion of the special shape of the air -guiding space, and the requirement of guaranteeing the uniformity of air outlet under the condition of large air outlet area is realized, and the pavement drying efficiency is finally improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the structure schematic diagram of the utility model embodiment 1.

[0019] Figure 2 It is the front view of the utility model embodiment 1.

[0020] Figure 3 It is the top view of the utility model embodiment 1.

[0021] Figure 4 It is the installation schematic diagram of the combustion jet device and the air -guiding cover of the utility model embodiment 1.

[0022] Figure 5 It is the structure schematic diagram of the air -guiding cover of the utility model embodiment 1.

[0023] Figure 6 It is the structure schematic diagram of the air -guiding cover of the utility model embodiment 2. DETAILED DESCRIPTION

[0024] The utility model is further described in detail below in conjunction with the drawings embodiment.

[0025] Embodiment 1

[0026] As shown, it is one preferred embodiment of the pavement drying equipment of the utility model. Figures 1-4

[0027] The embodiment includes the rack that is provided with the travelling device 9, the gas supply device 2 is installed in the rack, the air -guiding cover 1 is provided with in front of the rack, the air -guiding cover 1 has the air inlet 11 and the air outlet 12, the air inlet 11 is in fluid communication with the gas supply device 2, and the air outlet 12 is air outlet to the pavement to be dried.The air -guiding space is formed in the air -guiding cover 1, and the gas for drying the pavement is inclined downward along the advancing direction of the pavement drying equipment and is guided, and the cross section of the air -guiding space gradually increases width gradually from back to front, and the height gradually reduces, and reference Figure 1 . After gas enters the air -guiding space from the air inlet 11, the originally concentrated airflow will spread in the width direction under the extrusion of the special shape of the air -guiding space, and the requirement of guaranteeing the uniformity of air outlet under the condition of large air outlet area is realized, and the pavement drying efficiency is finally improved.

[0028] ​The air outlet 12 of the air guide shroud 1 can be multiple high-pressure air nozzles or other structures as in the prior art. However, in order to maximize the air outlet area, the air outlet 12 of this embodiment is opened at the front end of the air guide shroud 1. The air outlet 12 is strip-shaped and extends in the same direction as the width of the air guide space.

[0029] In order to ensure that the gas flows forward and downward after exiting the air outlet 12 and avoids the gas rising and causing a loss of drying efficiency, the air guide hood 1 in this embodiment also has an air pressure plate 13, which is located above the front side of the air outlet 12.

[0030] The air guide shroud 1 can be equipped with a single-stage or multi-stage air guide structure according to actual needs, further guiding the concentrated airflow entering from the air inlet 11 to both sides. In this embodiment, the air guide shroud 1 is provided with a two-stage air guide structure, including a primary air guide plate 14 and two secondary air guide plates 15.

[0031] The primary air guide plate 14 guides the airflow to both sides of the airflow space, such as... Figure 5 As shown, the primary air guide plate 14 is a V-shaped air guide plate, with the V-shaped tip facing the air inlet 11 and the V-shaped opening facing the air outlet 12. Two secondary air guide plates 15 are located in front of the primary air guide plate 14. The secondary air guide plates 15 can be V-shaped, single-piece, or other types of air guide plates. At least one of the secondary air guide plates 15 has an air guiding direction facing the side closest to the secondary air guide plate 15 on either side of the width of the air guiding space.

[0032] In this embodiment, the secondary air guide plate 15 adopts a V-shaped air guide plate, thus the secondary air guide plate 15 has two air guiding directions simultaneously, so as to be located in Figure 5 Taking the secondary air guide plate 15 on the left as an example, one of its air guiding directions is towards the left side of the air guiding space, and the other air guiding direction is towards the middle of the air outlet 12. Similarly, for the secondary air guide plate 15 on the right, one of its air guiding directions is towards the right side of the air guiding space, and the other air guiding direction is towards the middle of the air outlet 12.

[0033] The pavement drying equipment in this embodiment also includes an air supply device 2, which is connected to the air inlet 11 of the air guide shroud 1 via a flexible metal tube 3. The flexible metal tube 3 can reduce the impact of mechanical vibration on the air outlet while ensuring smooth airflow. The air supply device 2 is a combustion jet device, which, as a hot air generator, can directly integrate the functions of a gas heating device and a gas driving device.

[0034] In addition, the rack of the embodiment includes a protective cover 4 for protecting the combustion jet device, the lower part of the protective cover 4 is connected with the base 5, the front part is open for the metal flexible pipe 3 to pass through, the combustion jet device in the protective cover 4 is connected with the air guide cover 1 outside the protective cover 4, the rear side of the protective cover 4 is also open, which is used for the combustion jet device to be in fluid communication with the oil tank 6 arranged on the base 5, and the oil tank 6 supplies oil for the combustion jet device. The combustion jet device and the air guide cover 1 are both installed on the mounting rack 21, as shown in Figure 2 and Figure 4 shown, so as to ensure that the air outlet angle is inclined relative to the ground and always maintains an inclination angle α.

[0035] The base 5 is also provided with a control console 71 and a wiring box 72 and the like structure, which is used for controlling the combustion jet device and the like structure. The base 5 is provided below with a tire or a track and the like walking device 9, a driving device 93 for providing walking power, and a transmission device 92 for transmitting power and the like. The rear side of the base 5 is provided with a handrail 8, and the user can push the entire pavement drying equipment to perform drying operation by holding the handrail 8.

[0036] Embodiment 2

[0037] The difference between the embodiment and the embodiment 1 is that the air guide space of the embodiment is wider, and the corresponding air guide cover 1 is wider and has a plurality of air inlets 11, as shown in Figure 6 Each air inlet 11 is provided in front of at least one primary air guide plate 14, and each primary air guide plate 14 is provided with at least two secondary air guide plates 15. The embodiment obtained after upgrading according to the expansion of the drying area can provide a large-area air outlet system, and when the required drying area is relatively large, the air outlet uniformity and the drying efficiency can still be maintained.

Claims

1. A pavement drying device, comprising a frame, a walking device (9) arranged at the bottom of the frame, a gas supply device (2) mounted on the frame, and a wind guide cover (1) arranged at the front side of the frame, the wind guide cover (1) having an air inlet (11) and an air outlet (12), the air inlet (11) being in fluid communication with the gas supply device (2), and the air outlet (12) discharging air to a pavement to be dried, characterized in that, The air guide cover (1) forms an air guide space inside, which is inclined downward along the advancing direction of the pavement drying device and guides the air for drying the pavement, the cross section of the air guide space gradually increases in width from back to front and gradually decreases in height.

2. The track drying apparatus of claim 1, wherein, The air guide cover (1) has a primary air guide plate (14) inside, which guides the air to both sides of the width of the air guide space.

3. The track drying apparatus of claim 2, wherein, The primary air guide plate (14) is a V-shaped air guide plate, the V-shaped tip of which faces the air inlet (11), and the V-shaped opening part faces the air outlet (12).

4. The track drying apparatus of claim 2, wherein, The air guide cover (1) also has a secondary air guide plate (15) inside, which is arranged on the front side of the primary air guide plate (14), and the secondary air guide plate (15) has at least one air guide direction towards the side close to the secondary air guide plate (15) among both sides of the width of the air guide space.

5. The track drying apparatus of claim 4, wherein, The secondary air guide plate (15) is a V-shaped air guide plate or a single-piece air guide plate.

6. The track drying apparatus of claim 4, wherein, The air guide cover (1) has multiple air inlets (11), each of which corresponds to at least one primary air guide plate (14) in front, and each primary air guide plate (14) corresponds to at least two secondary air guide plates (15).

7. The track drying apparatus of claim 1, wherein, The air outlet (12) is opened at the front end of the air guide cover (1), and the air outlet (12) is in the form of a strip and extends in the same direction as the width direction of the air guide space.

8. The track drying apparatus of claim 7, wherein, The air guide cover (1) also has a pressure plate (13) arranged above the front side of the air outlet (12).

9. The track drying apparatus of claim 1, wherein, The air supply device (2) is connected to the air inlet (11) of the air guide cover (1) through a metal flexible pipe (3).

10. The track drying apparatus of claim 9, wherein, The air supply device (2) is a combustion jet device.

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