CN221505427U - A blast drying oven for road engineering experiment - Google Patents

Abstract

The utility model relates to a forced air drying oven for road engineering experiments, which comprises a box framework, a U-shaped heating pipe and a drawer type bracket, wherein a door frame is arranged on the front side wall of the box framework, the drawer type bracket is arranged on the inner walls of the left side and the right side of an inner cavity in a sliding manner, an air outlet is arranged at the top of the box framework, an air inlet is arranged on the side wall of the box framework, the U-shaped heating pipe and a controller are arranged in the box framework, a plurality of heat dissipation holes are arranged on the inner wall of the inner cavity, a temperature sensor is arranged on the inner wall of the inner cavity, and the controller is electrically connected with the temperature sensor. The U-shaped heating pipe is high in heat conductivity, the stainless steel material is easy to clean, the heating efficiency is higher, and the U-shaped heating pipe is safer to use; after the drawer type bracket is adopted to conveniently heat the raw materials, a certain layer of bracket oven door is independently pulled, the heated raw materials can be quickly taken out, the accuracy of the follow-up experimental result is ensured, and the drawer type bracket is simple in structure, convenient and practical and suitable for large-area popularization and use.

Description

A blast drying oven for road engineering experiment

Technical Field

The utility model relates to the technical field of municipal engineering equipment, in particular to a forced air drying oven for road engineering experiments.

Background

The universal blast drying oven for road experiments is generally applied to road experiments and is used for heating experimental raw materials such as asphalt, drying aggregate and the like. The current general forced air drying oven heating source of road experiment is the heater strip generally, places in the bottom, places the heating raw and other materials on putting on the support during the heating, opens the oven door after the heating is accomplished and takes out raw and other materials when the temperature falls to but touching temperature, and current situation oven shows the real-time temperature in the oven through temperature sensor, and temperature sensor generally sets up in the upper left corner department of inner chamber and only one. The conventional general forced air drying oven for road experiments has the advantages of simple structure, simple temperature control principle, easiness in operation and the like. The defects are mainly two: (1) The heat conduction of the heating wire is poor, the heating efficiency is low, the condition that the temperature is not reduced all the time when the temperature is continuously increased and reduced during constant-temperature heating can be generated during long-time heating, the experiment constant-temperature heating requirement is not met, the heating wire is exposed, and potential safety hazards are easily generated when thick matters such as asphalt and the like are heated; (2) In the experiment, the raw materials are required to be heated by the oven for a set time, and then the oven is opened to take out the raw materials for relevant experiments, but in the practical operation, the raw materials are generally taken out from the inner cavity bracket after the heat of the whole inner cavity is dissipated to the contactable temperature, and the oven is large in volume and long in time when the heat is dissipated to the contactable temperature, so that the temperature of asphalt drops too fast to meet the experiment requirement when the temperature-sensitive materials such as asphalt are heated, and the error of the experiment result is caused.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a forced air drying oven for road engineering experiments aiming at the defects of the prior art.

The technical scheme for solving the technical problems is as follows: the utility model provides a blast drying oven for road engineering experiments, includes inside cavity setting and forms box framework, U type heating pipe and at least one drawer type support that is used for placing experimental raw materials, be provided with on the preceding lateral wall of box framework and be used for drawer type support pull's door frame, drawer type support slides and sets up on the left and right sides inner wall of inner chamber, and can follow door frame department pulls out or pushes, the top of box framework is provided with and is used for the intercommunication gas outlet between inner chamber and the outside atmosphere, be provided with the air inlet on the lateral wall of box framework, be provided with in the box framework U type heating pipe and controller, be provided with a plurality of louvres on the inner wall of inner chamber, be provided with temperature sensor on the inner wall of inner chamber, just the controller with temperature sensor electricity is connected.

The beneficial effects of the utility model are as follows: the forced air drying oven for road engineering experiments adopts the U-shaped heating pipe, has high heat conductivity, is made of stainless steel materials, is easy to clean, can ensure higher heating efficiency and is safer in use; after the drawer type bracket is adopted to conveniently heat the raw materials, a certain layer of bracket oven door is independently pulled, the heated raw materials can be quickly taken out, the accuracy of the follow-up experimental result is ensured, and the drawer type bracket is simple in structure, convenient and practical and suitable for large-area popularization and use.

Based on the technical scheme, the utility model can also be improved as follows:

further: an insulation layer is arranged between the box framework and the inner cavity, and the U-shaped heating pipe is inlaid in the insulation layer.

The beneficial effects of the above-mentioned further scheme are: through setting up the heat preservation, can increase the heat preservation effect, reduce the heat loss for the heating efficiency of U type heating pipe is higher, and will U type heating pipe inlays the setting in the heat preservation, can make safer when using like this.

Further: the forced air drying oven for road engineering experiments further comprises a hot fan, wherein the hot fan is inlaid in the heat insulation layer, is opposite to the air inlet and is communicated with the air inlet, and the hot fan is electrically connected with the controller.

The beneficial effects of the above-mentioned further scheme are: through setting up the hot-blast fan, can accelerate the circulation of air in the inner chamber improves the heating effect.

Further: the air outlet comprises a double-layer blade and an air hole, wherein the double-layer blade is arranged in the air hole, the lower layer blade is fixedly arranged, and the upper layer blade is rotatably arranged.

The beneficial effects of the above-mentioned further scheme are: through setting up the gas pocket can cooperate the air inlet realizes air current circulation, thereby combines U type heating pipe realization is to the heating of experimental raw materials, simultaneously, sets up the blade can be so on the one hand the gas pocket sets up less a bit, is favorable to avoiding the heat to scatter and disappear too soon, on the other hand can be when not using normally pass through the blade closes the gas pocket prevents that the dust from getting into inside the oven.

Further: the inner walls of the left side and the right side of the inner cavity are correspondingly provided with drawer type support plates which are the same as the drawer type supports in number and are in one-to-one correspondence, and the drawer type supports are arranged on the drawer type support plates on the corresponding left side and the right side in a sliding manner and can slide back and forth along the drawer type support plates so as to be pulled out or pushed in from the door frame.

The beneficial effects of the above-mentioned further scheme are: through set up drawer type mounting panel on the left and right sides inner wall of inner chamber, can be so convenient drawer type support can be followed drawer type mounting panel back-and-forth sliding to can conveniently after having heated raw and other materials, pull certain layer of support oven door alone, can take out this layer of heating raw and other materials fast.

Further: the drawer type support comprises a first door, a support net, a baffle and a door handle, wherein the first door is adaptive to the door frame, the support net is used for placing experimental raw materials, the support net is arranged between the baffle and the first door, the baffle is positioned at the rear side, the door handle is positioned at the front side, and the door handle is arranged on the first door.

The beneficial effects of the above-mentioned further scheme are: the first box door and the baffle can play a supporting role on the support net, so that experimental materials can be placed on the support net, and the first box door, the support net and the experimental materials on the support net can be pushed in or pulled out together through the door handle, so that the support is very convenient.

Further: the number of the temperature sensors is plural, and the temperature sensors are layered on the inner wall of the inner cavity.

The beneficial effects of the above-mentioned further scheme are: through with a plurality of temperature sensor layering setting in on the inner wall of inner chamber, can guarantee the accuracy of the intracavity of measuring like this, improve the accuracy of experimental result.

Further: the radiating holes are uniformly arranged on the left side wall, the right side wall, the inner bottom wall and the rear side wall of the inner cavity in an array mode respectively.

The beneficial effects of the above-mentioned further scheme are: through set up the louvre on left side wall, right side wall, interior diapire and the back lateral wall of inner chamber respectively, can accelerate intracavity air like this and flow, improve the heating effect for experimental material's being heated more evenly.

Further: the front side wall of the box body framework is provided with a display screen, and the display screen is electrically connected with the controller.

The beneficial effects of the above-mentioned further scheme are: the display screen can display parameters such as heating temperature, set temperature, heating time and the like in the inner cavity in real time, so that the operation process can be conveniently known in real time.

Further: the front side wall of the box body framework is provided with a control button, the control button comprises a switch, an air-blast drying button and a temperature adjusting button, and the switch, the air-blast drying button and the temperature adjusting button are respectively and electrically connected with the controller.

The beneficial effects of the above-mentioned further scheme are: the switch, the forced air drying button and the temperature adjusting button are arranged, so that the device can be very convenient to set the on-off state, the drying in the ancient air and the heating temperature, and is simple to operate, convenient and practical.

Further: one side of the box framework is provided with a second box door which can be opened or closed, and the controller is arranged at a position corresponding to the second box door on the box framework.

The beneficial effects of the above-mentioned further scheme are: through setting up the second chamber door, thereby the convenience is in can conveniently open or close when the controller is maintained or is overhauld, improved the convenience of maintaining.

Drawings

Fig. 1 is a schematic diagram of a front view of a forced air drying oven for road engineering experiments according to an embodiment of the present utility model;

FIG. 2 is a schematic perspective view of a forced air drying oven for road engineering experiments according to an embodiment of the present utility model;

FIG. 3 is a schematic view showing a drawer type rack of a forced air drying oven for road engineering experiments according to an embodiment of the present utility model;

Fig. 4 is a schematic diagram showing a front view of a drying oven for road engineering experiments according to an embodiment of the present utility model.

In the drawings, the list of components represented by the various numbers is as follows:

1. The air conditioner comprises an air outlet, 2, blades, 3, a heat dissipation hole, 4, a drawer type support plate, 5, a box body framework, 6, a controller, 7, an inner cavity, 8, a drawer type support, 9, a switch, 10, a blast drying button, 11, a temperature adjusting button, 12, a display screen, 13, a heat preservation layer, 14 temperature sensors, 15, a hot air fan, 16, a U-shaped heating pipe, 17, a second box door, 18, air holes, 19 and a door frame;

8-1 parts of a first box door, 8-2 parts of a bracket net, 8-3 parts of a baffle plate, 8-4 parts of a door handle.

Detailed Description

The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.

As shown in fig. 1 to 4, a forced air drying oven for road engineering experiments comprises a box frame 5, a U-shaped heating pipe 16 and at least one drawer type bracket 8, wherein the box frame 5 is hollow in the interior and forms an inner cavity 7, a door frame 19 for drawing the drawer type bracket 8 is arranged on the front side wall of the box frame 5, the drawer type bracket 8 is slidably arranged on the inner walls of the left side and the right side of the inner cavity 7 and can be pulled out or pushed in from the door frame, an air outlet 1 for communicating the inner cavity with the outside atmosphere is arranged at the top of the box frame 5, an air inlet is arranged on the side wall of the box frame 5, the U-shaped heating pipe 16 and a controller 6 are arranged in the box frame 5, a plurality of heat dissipation holes 3 are formed in the inner wall of the inner cavity 7, a temperature sensor 14 is arranged on the inner wall of the inner cavity 7, and the controller 6 is electrically connected with the temperature sensor 14.

According to the forced air drying oven for the road engineering experiment, the U-shaped heating pipe 16 is adopted, so that the heat conductivity is high, the stainless steel material is easy to clean, the heating efficiency is higher, and the forced air drying oven is safer to use; after raw materials can be conveniently heated by adopting the drawer type bracket 8, a certain layer of bracket oven door is independently pulled, the heated raw materials can be quickly taken out, the accuracy of the follow-up experimental result is ensured, and the drawer type bracket is simple in structure, convenient and practical and suitable for large-area popularization and use.

In one or more embodiments of the present utility model, an insulation layer 13 is disposed between the box structure 5 and the inner cavity 7, and the U-shaped heating pipe 16 is embedded in the insulation layer 13. Through setting up heat preservation 13, can increase the heat preservation effect, reduce the heat and scatter and disappear for the heating efficiency of U type heating pipe 16 is higher, and will U type heating pipe 16 inlay the setting and be in the heat preservation 13, can make safer when using like this.

Optionally, in one or more embodiments of the present utility model, the air drying oven for road engineering experiments further includes a hot air fan 15, the hot air fan 15 is embedded in the heat insulation layer 13, and the hot air fan 15 is opposite to the air inlet and is disposed in communication with the air inlet, and the hot air fan 15 is electrically connected to the controller 6. Through setting up hot-blast fan 15 can accelerate the circulation of air in the inner chamber 7, the steam convection is faster, and the inner chamber temperature field is more even, improves the heating effect.

In one or more embodiments of the present utility model, the air outlet 1 includes a double-layered vane 2 and an air hole 18, the double-layered vane 2 is disposed in the air hole 18, and the lower-layered vane 2 is fixedly disposed, and the upper-layered vane 2 is rotatably disposed. Through setting up gas pocket 18 can cooperate the air inlet realizes air current circulation to combine U type heating pipe 16 realizes the heating to experimental raw materials, simultaneously, set up blade 2 can make on the one hand the gas pocket 18 sets up less, is favorable to avoiding the heat to scatter and disappear too soon, on the other hand can be when not using normally pass through blade 2 closes gas pocket 18 prevents that the dust from getting into inside the oven.

In the embodiment of the utility model, the air hole 18 is arranged at the right center position of the top of the drawer type support 8, and the heat insulation layer is filled between the box frame 5 and the inner cavity 7. The U-shaped heating pipes 16 are arranged on the outer sides of the inner bottom wall and the rear side wall of the inner cavity 7, and three and six of the U-shaped heating pipes are respectively placed on the outer sides of each wall.

In one or more embodiments of the present utility model, the inner walls of the left and right sides of the inner cavity 7 are correspondingly provided with drawer type support plates 4 which are the same as the drawer type supports 8 in number and are in one-to-one correspondence, and the drawer type supports 8 are slidably arranged on the drawer type support plates 4 of the corresponding left and right sides and can slide back and forth along the drawer type support plates 4 so as to be pulled out or pushed in from the door frame. Through set up drawer type bracket board 4 on the left and right sides inner wall of inner chamber 7, can be so convenient drawer type bracket 8 can be followed drawer type bracket board 4 back and forth slip to can conveniently after having heated raw and other materials, pull certain layer of support oven door alone, can take out this layer of heating raw and other materials fast.

Alternatively, as a preferred embodiment of the present utility model, the drawer-type support plate 4 has four layers, each layer may be used to mount the drawer-type support 8 on the drawer-type support plate 4 by drawing and inserting, and experimental materials such as a leaching head may be placed on the drawer-type support 8.

In one or more embodiments of the present utility model, the drawer type supporter 8 includes a first door 8-1 adapted to the door frame, a supporter net 8-2 for placing experimental raw materials, a baffle 8-3 and a door handle 8-4, the supporter net 8-2 is disposed between the baffle 8-3 at a rear side and the first door 8-1 at a front side, and the door handle 8-4 is disposed on the first door 8-1. The first box door 8-1 and the baffle plate 8-3 can support the support net 8-2, so that experimental materials can be placed on the support net 8-2, and the experimental materials on the first box door 8-1, the support net 8-2 and the support net 8-2 can be pushed in or pulled out together through the door handle 8-4, which is very convenient. In the embodiment of the present utility model, the width of the first door 8-1 is identical to the length of the door frame 19, and the height of the first door 8-1 is 1/4 of the height of the door frame 19. The outer wall of the whole box body is made of stainless steel materials, and an aluminum silicate ceramic fiber cotton heat-insulating material is smeared and added on the inner layer of the outer wall to prevent temperature loss. Before heating, the four drawer type brackets 8 are sequentially lapped on the drawer type bracket plate 4, and the corresponding four first door doors 8-1 attached to the drawer type brackets 8 are completely jointed on the door frame 19. When the heating is finished and the oven radiates heat, the heat radiates heat from the air outlet 1 through the first oven door 8-1.

Optionally, in one or more embodiments of the present utility model, the number of the temperature sensors 14 is plural, and plural temperature sensors 14 are layered on the inner wall of the inner cavity 7. Through setting up a plurality of temperature sensor 14 layering on the inner wall of inner chamber 7, can guarantee the accuracy of the temperature in the inner chamber 7 of survey like this, improve the accuracy of experimental result. In practice, the temperature sensors 14 are placed on the upper, middle and lower layers of the inner cavity 7, one is placed at each of the four corners of the upper, middle and lower layers, one is placed at the geometric center of the inner cavity, thirteen are placed in total, and the temperature sensors 14 select PT100 thermal resistance platinum thermocouples and perform temperature control by adopting the existing fuzzy self-adaptive pid temperature control system.

In one or more embodiments of the present utility model, the heat dissipation holes are uniformly arranged on the left side wall, the right side wall, the inner bottom wall and the rear side wall of the inner cavity 7, respectively. Through set up the louvre respectively on the left side wall, the right side wall, interior diapire and the back lateral wall of inner chamber 7, can accelerate intracavity air like this and flow, improve the heating effect for experimental material's being heated more evenly.

In one or more embodiments of the present utility model, a display screen 12 is disposed on a front sidewall of the case frame 5, and the display screen 12 is electrically connected to the controller 6. By setting the display screen 12, parameters such as heating temperature, set temperature, heating time and the like in the inner cavity 7 can be displayed in real time, so that the operation process can be conveniently known in real time. In this embodiment, the display screen 12 is disposed at the upper portion of the front side of the case frame 5.

In one or more embodiments of the present utility model, the front side wall of the box frame 5 is provided with a control button, which includes a switch 9, a blast drying button 10 and a temperature adjusting button 11, wherein the switch 9 is disposed at the lower part of the front side of the box frame 5, and the temperature adjusting button 11 and the blast drying button 10 are respectively disposed at the middle part of the front side of the solid frame. In this embodiment, the switch 9, the air drying button 10 and the temperature adjusting button 11 are electrically connected to the controller 6, respectively. The switch 9, the air drying button 10 and the temperature adjusting button 11 are arranged, so that the setting of the on-off state, the drying in the ancient air and the heating temperature can be very conveniently carried out, and the operation is simple, convenient and practical.

In one or more embodiments of the present utility model, a second door 17 that can be opened or closed is provided at one side of the box frame 5, and the controller 6 is provided at a position corresponding to the second door 17 on the box frame 5. By arranging the second door 17, the controller 6 can be conveniently opened or closed during maintenance or overhaul, and the maintenance convenience is improved.

In one or more embodiments of the present utility model, the housing structure 5 is cubic, and the inner cavity 7 is cubic.

Before the universal forced air drying oven for road engineering experiments is used, heating raw materials are placed on the drawer type brackets 8, four drawer type brackets 8 are put on the drawer type bracket plate 4, the first door 8-1 is pushed and pulled, the first door 8-1 is guaranteed to be completely attached to the door frame 19, the blades 2 are rotated, the air outlet 1 is kept in an open state, and therefore the pressure intensity inside and outside the oven is kept consistent during heating. Pressing switch 9,U type heating pipe 16 and beginning heating, pressing blast drying button 10, under the blowing of hot-blast fan 15, oven inner chamber 7 heat transfer faster, press temperature-adjusting button 11 and set up the temperature to experimental requirement heating temperature, set up the temperature and can show on temperature display screen 12, under the controller control, U type heating pipe 16 can heat inner chamber 7 temperature all the time to the setting temperature, inner chamber 7 real-time temperature can be detected through temperature sensor 14 and show through display screen 12, after inner chamber 7's temperature reached the setting temperature, the heating heat dissipation in oven inner chamber 7 reaches the equilibrium through gas outlet 1, louvre 3, hot-blast fan and insulation material 13, controller 6 can control the intermittent heating of U type heating pipe 16 and keep the temperature in the oven inner chamber 7 at about the setting temperature all the time, after the oven heats experimental material to experimental requirement time under the setting temperature, press switch 9 closes the power, U type heating pipe 16 stops heating, pull door handle 8-4 draws out the drawer type support 4 of placing raw and other materials, take out and carry out experimental operation.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims (5)

1. The utility model provides a forced air drying oven for road engineering experiments, which is characterized in that the forced air drying oven comprises a box framework (5) which is internally arranged in a hollow way and forms an inner cavity (7), a U-shaped heating pipe (16) and at least one drawer type bracket (8) used for placing experimental raw materials, a door frame (19) used for drawing the drawer type bracket (8) is arranged on the front side wall of the box framework (5), the drawer type bracket (8) is arranged on the inner walls of the left side and the right side of the inner cavity (7) in a sliding way and can be pulled out or pushed in from the door frame, the top of the box framework (5) is provided with an air outlet (1) used for communicating the inner cavity with the outside atmosphere, the side wall of the box framework (5) is provided with an air inlet, the U-shaped heating pipe (16) and a controller (6) are arranged in the box framework (5), a plurality of radiating holes (3) are arranged on the inner wall of the inner cavity (7), a temperature sensor (14) is arranged on the inner wall of the inner cavity (7), and the controller (6) is electrically connected with the temperature sensor (14);

An insulation layer (13) is arranged between the box body framework (5) and the inner cavity (7), and the U-shaped heating pipe (16) is embedded in the insulation layer (13);

The air outlet (1) comprises double-layer blades (2) and air holes (18), wherein the double-layer blades (2) are arranged in the air holes (18), the lower-layer blades (2) are fixedly arranged, and the upper-layer blades (2) are rotatably arranged;

The inner walls of the left side and the right side of the inner cavity (7) are correspondingly provided with drawer type support plates (4) which are the same as the drawer type supports (8) in number and are in one-to-one correspondence, and the drawer type supports (8) are arranged on the corresponding drawer type support plates (4) on the left side and the right side in a sliding manner and can slide back and forth along the drawer type support plates (4) so as to be pulled out or pushed in from the door frame;

the drawer type bracket (8) comprises a first door (8-1) which is matched with the door frame, a bracket net (8-2) used for placing experimental raw materials, a baffle plate (8-3) and a door handle (8-4), wherein the bracket net (8-2) is arranged between the baffle plate (8-3) positioned at the rear side and the first door (8-1) positioned at the front side, and the door handle (8-4) is arranged on the first door (8-1);

One side of the box body framework (5) is provided with a second box door (17) which can be opened or closed, and the controller (6) is arranged at a position corresponding to the second box door (17) on the box body framework (5).

2. The forced air drying oven for road engineering experiments according to claim 1, further comprising a hot air fan (15), wherein the hot air fan (15) is embedded in the heat insulation layer (13), the hot air fan (15) is opposite to the air inlet and is communicated with the air inlet, and the hot air fan (15) is electrically connected with the controller (6).

3. A forced air drying oven for road engineering experiments according to claim 1, characterized in that the number of temperature sensors (14) is plural, and that a plurality of the temperature sensors (14) are layered on the inner wall of the inner cavity (7).

4. A forced air drying oven for road engineering experiments according to claim 1, characterized in that the heat dissipation holes are uniformly arranged on the left side wall, the right side wall, the inner bottom wall and the rear side wall of the inner cavity (7), respectively.

5. The forced air drying oven for road engineering experiments according to claim 1, wherein a control button and a display screen (12) are arranged on the front side wall of the box body framework (5), and the control button and the display screen (12) are respectively electrically connected with the controller (6).