CN218936831U - Electrothermal blowing drying box - Google Patents

Abstract

The utility model discloses an electrothermal blowing drying box which comprises a box body, a box door rotating on the box body, and a blower arranged on one side of the box body and communicated with the outside through an air inlet, wherein a locking component for locking and connecting the box body and the box door to form a drying cavity in a surrounding mode is arranged between the box body and the box door, a storage rack is arranged in the drying cavity, an electrothermal cavity is communicated between the blower and the drying cavity, an electrothermal piece is arranged in the electrothermal cavity, the blower and the drying cavity are communicated with a heat exchange cavity, and an exhaust runner is arranged on the box body, one end of the exhaust runner is communicated with the drying cavity, and the other end of the exhaust runner extends out of the box body after passing through the heat exchange cavity. According to the electrothermal blowing drying box, the exhaust runner passes through the heat exchange cavity, so that heat exchange is performed between the gas before being discharged and the air before being heated, on one hand, the exhaust temperature is reduced, the potential safety hazard is reduced, and on the other hand, the air before entering the electrothermal cavity is preheated and heated, so that the power consumption of an electrothermal part is reduced.

Description

Electrothermal blowing drying box

Technical Field

The utility model relates to the technical field of drying equipment, in particular to an electrothermal blowing drying oven.

Background

The electric heating blowing drying box is also called an oven, and adopts electric heating rheumatism to carry out blowing circulation drying test, is a common equipment, is mainly used for drying samples, and can also provide a temperature environment required by the experiment. The drying oven is widely applied to various industries such as chemical industry, medicine, casting, automobiles, food, machinery and the like.

The electrothermal blowing drying boxes in the prior art are mainly composed of a box body and a box door which are rotationally connected, the box body and the box door are surrounded to form a drying cavity, a storage rack is arranged in the drying cavity, high-temperature gas is conveyed into the drying cavity, heat is transmitted to articles on the storage rack by utilizing the high-temperature gas, the purpose of heating and drying is achieved, and an exhaust hole communicated with the drying cavity is formed in the top of the box body, for example, the electrothermal blowing drying boxes disclosed in Chinese patent publication No. CN215951981U, CN208832869U, CN213480797U, CN213984310U and the like are required to continuously convey the high-temperature gas into the drying cavity when in use, so that higher energy consumption is caused, the temperature of the gas after heat transmission is still higher than the external temperature, the gas is directly discharged to the outside, potential safety hazards of scalding surrounding workers are likely to exist.

Therefore, there is a need for improvements in the art of electrothermal forced air drying ovens.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provide the electrothermal blowing drying box which saves energy consumption, reduces potential safety hazard, simultaneously conveniently adjusts the position and the distance of the storage racks and is convenient to use.

In order to achieve the technical effects, the technical scheme of the utility model is as follows: the utility model provides an electrothermal blowing drying cabinet, includes the box, rotate in chamber door on the box, set up in chamber one side and air inlet and external intercommunication's air-blower, the box with set up between the chamber door with the locking subassembly of closing the two locking connection in order to enclose and forming the drying chamber, be provided with the supporter in the drying chamber, the air-blower with the intercommunication has the electric heating chamber between the drying chamber, be provided with the electrothermal member in the electric heating chamber, the air-blower with the drying chamber intercommunication has the heat transfer chamber, be provided with on the box one end with drying chamber intercommunication, the other end passes through after the heat transfer chamber extend to the external exhaust runner of box.

Preferably, in order to reduce the exhaust temperature, preheat the gas that gets into the electric heat intracavity simultaneously, reduce the heating consumption of electric heat spare, the exhaust runner is including first runner, second runner and the third runner of intercommunication in proper order, first runner shaping in the lateral wall of box, be provided with the heat exchange tube in the heat exchange chamber, be provided with the blast pipe outside the box, the second runner with the third runner respectively shaping in the heat exchange tube with in the blast pipe.

Preferably, in order to increase the heat exchange amount, the exhaust temperature is further reduced, the preheating temperature of air entering the electric heating cavity is increased, the heat exchange tube comprises a plurality of heat exchange bent tubes which are distributed along the vertical direction and are sequentially communicated, and the heat exchange bent tubes are S-shaped.

Preferably, in order to make the air before preheating contact with the heat exchange tube uniformly and fully, and improve the heat exchange quantity, the heat exchange cavity is also provided with a gas distribution tube which is positioned below the heat exchange elbow and communicated with the air blower, the gas distribution tube is S-shaped, and gas distribution openings communicated with the tube cavity of the gas distribution tube are arranged at intervals along the length direction of the gas distribution tube.

Preferably, in order to reduce the potential safety hazard of equipment exhaust, the exhaust pipe is arranged below the box body, and the outlet of the exhaust pipe is arranged downwards.

Preferably, in order to ensure compact structure, the upper and lower sides of the electric heating element are respectively provided with an upper ventilation plate and a lower ventilation plate which are fixedly connected with the box body and densely provided with ventilation holes, the box body is fixedly connected with a sealing plate, and the box body, the upper ventilation plate, the lower ventilation plate and the sealing plate enclose to form the electric heating cavity and the heat exchange cavity.

Preferably, in order to flexibly adjust the position of the shelf so as to place different types of heating articles, the shelf is provided with at least two spaced apart along the vertical direction, and the shelf slides in the drying cavity along the vertical direction and is connected with a locking component for locking the shelf.

Preferably, in order to realize the flexible position adjusting function of the commodity shelf, a sliding rail extending along the vertical direction is arranged on the inner wall of the box body, the commodity shelf is fixedly connected with a sliding part in sliding fit with the sliding rail, a plurality of locking holes are distributed on the sliding rail along the length direction at intervals, a jack is arranged on the sliding part, the locking assembly comprises a locking bolt, and the jack is in plug-in fit with one of the locking holes through the locking bolt.

Preferably, in order to facilitate the disassembly of the rack, the sliding piece and the rack are combined to form an article, at least one of the inner top wall of the box body and the upper ventilation plate has a gap with the sliding rail, and the length of the gap is greater than or equal to the height of the article.

Preferably, in order to lock the door to the case, the locking assembly includes a locking frame movable between a locking position and a separation position, the locking frame in the locking position is used for locking the door to the case, and the locking frame in the separation position is disposed at one side of the case.

In summary, compared with the prior art, the electrothermal blowing drying oven has the advantages that the exhaust runner passes through the heat exchange cavity, so that the gas exchanges heat with the air before heating in advance before being discharged, on one hand, the exhaust temperature is reduced, the potential safety hazard is reduced, and on the other hand, the air before entering the electrothermal cavity is preheated and heated, so that the power consumption of the electrothermal member is reduced.

Drawings

FIG. 1 is a schematic view of the structure of the present utility model with the door closed;

fig. 2 is an enlarged view of a portion a of fig. 1;

FIG. 3 is a schematic view of the structure of the present utility model with the door open;

FIG. 4 is a front view of FIG. 3;

FIG. 5 is an exploded view of FIG. 3;

FIG. 6 is a schematic view of a portion of the structure of FIG. 5;

FIG. 7 is a front view of FIG. 6;

FIG. 8 is an exploded view of FIG. 6;

FIG. 9 is a schematic view of the structure of the air distribution pipe of the present utility model;

FIG. 10 is a schematic cross-sectional view of the case of the present utility model;

FIG. 11 is a schematic view of a connection structure between a rack and a slide rail according to the present utility model;

FIG. 12 is an exploded view of FIG. 11;

in the figure: 100. the door comprises a box body, 200 parts of a box door, 201 parts of a viewing window, 202 parts of a handle, 203 parts of a clamping rod, 300 parts of a blower, 400 parts of a locking assembly, 401 parts of a locking frame, 402 parts of a rotating shaft, 403 parts of a convex plate, 404 parts of a rotating seat, 500 parts of a storage rack, 600 parts of an electric heating cavity, 700 parts of an electric heating element, 800 parts of a heat exchanging cavity, 900 parts of a first runner, 110 parts of a heat exchanging pipe, 111 parts of a heat exchanging bent pipe, 120 parts of an exhaust pipe, 130 parts of a gas distributing pipe, 131 parts of a gas distributing pipe, 140 parts of an upper ventilating plate, 150 parts of a lower ventilating plate, 160 parts of a ventilating hole, 170 parts of a sealing plate, 171 parts of a display screen, 172 parts of a key, 180 parts of a sliding rail, 181 parts of a locking hole, 190 parts of a sliding piece, 191 parts of a jack, 210 parts of a pin, 220 parts of a supporting foot, 230 parts of a drying cavity, and 240 parts of a locking bolt.

Detailed Description

The following describes the embodiments of the present utility model further with reference to the drawings and examples. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and are not intended to limit the scope of the present utility model.

As shown in fig. 1 to 12, the electrothermal blowing drying oven of the present utility model comprises an oven body 100, four corners of the bottom surface of the oven body 100 are fixed with supporting legs 220 for supporting the oven body 100, one side of the front surface of the oven body 100 is rotatably connected with an oven door 200 through two pin shafts 210, the rotation axis of the oven door 200 extends along the vertical direction, a locking assembly 400 is arranged between the oven body 100 and the oven door 200, the oven door 200 is enclosed with the oven door 200 to form a drying cavity 230 after being rotated towards the oven body 100, and at the moment, the locking assembly 400 is used for locking and connecting the oven body 100 and the oven door 200 to prevent the oven door 200 from being opened.

As shown in fig. 2 and 5, the specific structure of the locking assembly 400 is that a rotating seat 404 is fixedly arranged on the side surface of the box body 100, a rotating through hole extending along the direction perpendicular to the rotating axis of the box door 200 is arranged on the rotating seat 404, a rotating shaft 402 attached to the inner wall of the rotating through hole in the circumferential direction is arranged on the inner side of the rotating through hole, two convex plates 403 are fixed on the rotating shaft 402, the two convex plates 403 are attached to the two ends of the rotating seat 404 respectively, so as to prevent the sliding deviation of the rotating shaft 402 along the axial direction, one end of the rotating shaft 402 is fixedly connected with a locking frame 401, the locking frame 401 rotates between a locking position and a separating position around the axis direction of the rotating shaft 402, when the locking frame 401 rotates to the separating position, the locking frame 401 is located on one side of the box body 100, as shown in fig. 3 and 4, at this time, the rotation of the box door 200 can be facilitated, when the locking frame 401 rotates to a locking position, the locking frame 401 locks the box door 200 on the box body 100, so that the box door 200 and the box body 100 enclose to form the drying cavity 230, as shown in fig. 1, in order to avoid that the box door 200 cannot be locked due to the downward rotation of the locking frame 401 in the position, one side of the box door 200 opposite to the box body 100 is fixed with an L-shaped clamping rod 203, the clamping rod 203 and the box door 200 enclose to form a clamping groove, and at this time, the locking frame 401 is abutted on the bottom wall of the clamping groove and is clamped between two inner side walls of the clamping groove. When the door 200 needs to be opened, the locking frame 401 is rotated upwards to be separated from the door 200, so that the door 200 can be rotated conveniently.

One side of the box 100 is fixedly connected with a blower 300 (as shown in fig. 1-5), an air inlet of the blower 300 is communicated with the outside, an air outlet of the blower 300 is communicated with the drying cavity 230 so as to convey outside air into the drying cavity 230, a storage rack 500 is arranged in the drying cavity 230, the storage rack 500 is used for placing objects to be heated and dried, an electric heating cavity 600 and a heat exchange cavity 800 which are communicated are sequentially arranged at the lower part of the box 100 from top to bottom, an electric heating element 700 is arranged in the electric heating cavity 600, the electric heating element 700 is an electric heating net, an air outlet of the blower 300 is sequentially communicated with the drying cavity 230 through the heat exchange cavity 800 and the electric heating cavity 600, an exhaust runner is arranged on the box 100, one end of the exhaust runner is communicated with the drying cavity 230, and the other end of the exhaust runner extends to the outside of the box 100 after passing through the heat exchange cavity 800.

When the electrothermal blowing drying oven of the utility model is used after adopting the substrate structure, firstly, the oven door 200 is opened, the articles to be dried and heated are placed on the storage rack 500, the oven door 200 is closed, the oven door 200 and the oven body 100 are enclosed to form the drying cavity 230, at the moment, the storage rack 500 and the heated articles are positioned in the drying cavity 230, and the position of the oven door 200 is locked by the locking component 400, so that the oven door 200 is prevented from being opened.

The blower 300 and the electric heating element 700 are started simultaneously, the blower 300 continuously and sequentially passes the outside air through the heat exchange cavity 800 and the electric heating cavity 600, the outside air enters the electric heating cavity 600 and then contacts with the high-temperature electric heating element 700, and the electric heating element 700 transfers heat to the air, so that the air is heated and then enters the drying cavity 230.

The air entering the drying chamber 230 contacts with the articles to be dried on the shelf 500, so that the articles absorb the heat of the high-temperature air to raise the temperature, and the moisture is reduced after the temperature is raised, thereby realizing drying; while the blower 300 continuously introduces external air so that the air, which is transferred to the drying object in the drying chamber 230, is discharged to the outside through the exhaust flow path.

When air is discharged to the outside through the exhaust runner, since part of the exhaust runner is positioned in the heat exchange cavity 800, hot air flowing in the part can exchange heat with external air introduced by the blower 300 and entering the heat exchange cavity 800, on one hand, the temperature of air discharged from equipment is reduced, others are prevented from being scalded, potential safety hazards are reduced, and on the other hand, the external air introduced by the blower 300 absorbs part of heat of air to be discharged after exchanging heat, so that the temperature of the external air introduced by the blower 300 is increased before entering the electric heating cavity 600, and after entering the electric heating cavity 600, the heat transferred by the electric heating element 700 required by heating is reduced, and further the power consumption of the electric heating element 700 is reduced, thereby achieving the effect of energy conservation.

The exhaust flow passage comprises a first flow passage 900, a second flow passage and a third flow passage which are sequentially communicated, wherein the first flow passage 900 is formed in one side wall of the box body 100 (as shown in fig. 10), two orifices of the first flow passage 900 are respectively positioned at positions close to the top and the bottom of the box body 100, and the orifices at the top are communicated with the drying cavity 230; as shown in fig. 7 and 8, the heat exchange tube 110 is fixed in the heat exchange chamber 800, the second flow passage is formed in the heat exchange tube 110, the downward exhaust pipe 120 is fixed below the box 100, the third flow passage is formed in the exhaust pipe 120, one end of the heat exchange tube 110 is communicated with the hole at the bottom of the first flow passage 900, the other end of the heat exchange tube 110 is communicated with the top end of the exhaust pipe 120, and the bottom end of the exhaust pipe 120 is the exhaust port thereof. The heat exchange tube 110 includes two heat exchange bent tubes 111 distributed in the vertical direction, and both the heat exchange bent tubes 111 are S-shaped.

After the structure is adopted in the exhaust runner, the gas in the drying cavity 230 after heat exchange with the to-be-dried object passes through the first runner 900 formed in the side wall of the box body 100, and then sequentially passes through the two heat exchange bent pipes 111, when flowing in the two heat exchange bent pipes 111, the gas in the heat exchange cavity 800 before entering the electric heating cavity 600 exchanges heat, so that the temperature in the heat exchange bent pipes 111 is reduced, the gas before entering the electric heating cavity 600 is heated, the heat exchange bent pipes 111 adopt an S-shaped structural design, two layers of the heat exchange bent pipes 111 are arranged, the flow path of the gas is prolonged, the passing time of the gas is prolonged, the heat exchange quantity of the air in the heat exchange cavity 800 is increased, the heat exchange effect is improved, the gas is discharged from the exhaust pipe 120 facing the exhaust port after the temperature of the heat exchange pipe 110 is reduced, the risk of scalding nearby workers is further reduced, and the potential safety hazard is reduced.

As shown in fig. 5, 6, 8 and 10, an S-shaped air distribution pipe 130 is fixed at the bottom of the box 100, the air distribution pipe 130 is located below the heat exchange pipe 110 and is communicated with the air outlet of the blower 300, and air distribution openings 131 communicated with the pipe cavities of the air distribution pipe 130 are distributed at intervals along the length direction of the air distribution pipe 130.

Through the design of the air distribution opening 131 on the air distribution pipe 130, the external air introduced by the blower 300 is uniformly diffused into the heat exchange cavity 800 through the air distribution opening 131, so as to achieve the heating effect after uniform heat exchange with the heat exchange pipe 110.

As shown in fig. 5-8, ventilation plates fixedly connected with the inner wall of the case 100 are arranged on the upper and lower sides of the electric heating element 700, the ventilation plates are rectangular in array and densely provided with ventilation holes 160, the two ventilation plates are respectively an upper ventilation plate 140 and a lower ventilation plate 150 which are sequentially arranged from top to bottom, the case 100 is fixedly connected with a sealing plate 170, and the case 100, the upper ventilation plate 140, the lower ventilation plate 150 and the sealing plate 170 enclose to form an electric heating cavity 600 and a heat exchange cavity 800.

After the above structure is adopted, the upper ventilation plate 140 and the lower ventilation plate 150, which are densely provided with the ventilation holes 160, can be enclosed with the box body 100 and the sealing plate 170 to form the electric heating cavity 600 and the heat exchange cavity 800, so as to heat and preheat the air entering the drying cavity 230 respectively, and meanwhile, the ventilation holes 160 on the upper ventilation plate 140 and the lower ventilation plate 150 ensure that the heat exchange cavity 800, the electric heating cavity 600 and the drying cavity 230 are communicated in sequence, and in addition, the electric heating element 700 can uniformly heat the air, and then enter the drying cavity 230 upwards through the ventilation holes 160 on the upper ventilation plate 140, and uniformly diffuse to heat and dry the object to be dried.

For convenient observation and operation, be provided with display 171 and a plurality of button 172 on the closing plate 170, the one side that the chamber door 200 was facing away from box 100 is provided with handle 202 simultaneously, is provided with the trompil on the chamber door 200, is provided with observation window 201 in the opening, and observation window 201 is thermal-insulated glass window, and its circumference outer fringe and open-ended circumference inner wall fixed connection conveniently observe the inside dry condition of box 100 through observation window 201.

As shown in fig. 6 to 8, 11 and 12, three racks 500 are provided, which are spaced apart in the vertical direction, and the racks 500 slide in the drying chamber 230 in the vertical direction and are connected with locking assemblies for locking them; specifically, two slide rails 180 extending along the vertical direction are arranged on the inner walls of two sides of the box body 100, three storage racks 500 are distributed among the four slide rails 180 at intervals along the vertical direction, sliding pieces 190 are arranged at four corners of each storage rack 500, the sliding pieces 190 are in one-to-one correspondence with the slide rails 180 and are in sliding fit, a plurality of locking holes 181 are distributed on the slide rails 180 at intervals along the length direction of each sliding piece, insertion holes 191 are formed in the sliding pieces 190, each locking assembly comprises a locking bolt 240, and the insertion holes 191 are in plug-in fit with one of the locking holes 181 through the locking bolts 240.

By adopting the structure, after the lock bolt 240 is pulled out, the rack 500 is conveniently slid along the vertical direction through the sliding fit of the sliding piece 190 and the sliding rail 180, the position of the rack 500 is adjusted, after the jack 191 on the sliding piece 190 of the rack 500 is aligned with one of the locking holes 181 on the sliding rail 180, the lock bolt 240 penetrates through the jack 191 to stretch into the locking hole 181, so that the jack 191 is matched with the locking hole 181 in a plugging manner, and the height position of the rack 500 is further fixed, and therefore, the rack 500 is conveniently adjusted according to the height and the body shape of a heated article, the height distance between adjacent racks 500 is adjusted, and the articles with different height shapes are conveniently placed for drying and heating.

The sliding member 190 and the placement frame 500 are combined to form an object, and a gap exists between the inner top wall of the case 100 and the upper ventilation plate 140, and the length of the gap is greater than or equal to the height of the object.

After the structure is adopted, the four sliding pieces 190 on the storage rack 500 are conveniently sleeved at the top end of the sliding rail 180 downwards from the top position inside the box body 100, or the four sliding pieces 190 on the storage rack 500 are upwards sleeved at the bottom end of the sliding rail 180 from the position attached to the upper part of the upper ventilation plate 140, so that the number of the storage racks 500 among the four sliding rails 180 is increased, the storage racks 500 with different layers of heated objects to be dried are conveniently placed, and of course, the storage rack 500 at the top position can also be upwards slid to be separated from the top end of the sliding rail 180, or the storage rack 500 at the bottom position can be downwards slid to be separated from the bottom end of the sliding rail 180. Thus, the detachable connection between the slide rails 180 and the shelf 500 is realized to adjust the number of the shelf 500 in the drying chamber 230, so that the use is more convenient according to the number of the heated material, the number of the shelf 500 in the case 100, the body type and other conditions, and the height distance between the shelf 500.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the technical principle of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.

Claims (10)

1. The utility model provides an electrothermal blowing drying cabinet, includes box (100), rotate in chamber door (200) on box (100), set up in box (100) one side and air inlet and external intercommunication's air-blower (300), box (100) with set up between chamber door (200) with the locking subassembly (400) of both locking connection in order to enclose and close and form dry chamber (230), be provided with supporter (500) in dry chamber (230), air-blower (300) with the intercommunication has electric heat chamber (600) between dry chamber (230), be provided with electric heat spare (700) in electric heat chamber (600), its characterized in that:

the air blower (300) is communicated with the drying cavity (230) and is provided with a heat exchange cavity (800), one end of the box body (100) is communicated with the drying cavity (230), and the other end of the box body passes through the heat exchange cavity (800) and then extends to an exhaust runner outside the box body (100).

2. The electrothermal blowing dry oven of claim 1, wherein: the exhaust runner comprises a first runner (900), a second runner and a third runner which are sequentially communicated, the first runner (900) is formed in the side wall of the box body (100), a heat exchange tube (110) is arranged in the heat exchange cavity (800), an exhaust pipe (120) is arranged outside the box body (100), and the second runner and the third runner are respectively formed in the heat exchange tube (110) and the exhaust pipe (120).

3. The electrothermal blowing dry oven of claim 2, wherein: the heat exchange tube (110) comprises a plurality of heat exchange bent tubes (111) which are distributed along the vertical direction and are communicated in sequence, and the heat exchange bent tubes (111) are S-shaped.

4. An electrothermal blowing dry oven according to claim 3, wherein: the heat exchange cavity (800) is internally provided with a gas distribution pipe (130) which is positioned below the heat exchange bent pipe (111) and communicated with the air blower (300), the gas distribution pipe (130) is S-shaped, and the gas distribution pipe (130) is provided with gas distribution ports (131) communicated with the pipe cavity along the length direction at intervals.

5. The electrothermal blowing dry oven of claim 2, wherein: the exhaust pipe (120) is arranged below the box body (100) and an outlet of the exhaust pipe is downwards arranged.

6. The electrothermal blowing dry oven of claim 1, wherein: the upper and lower both sides of electric heat spare (700) all be provided with last ventilative board (140) and lower ventilative board (150) of box (100) fixed connection and densely covered with bleeder vent (160), box (100) fixedly connected with closing plate (170), box (100 go up ventilative board (140) lower ventilative board (150) with closing plate (170) enclose and close and form electric heating chamber (600) with heat exchange chamber (800).

7. The electrothermal blowing dry oven of claim 6, wherein: at least two storage racks (500) are distributed at intervals along the vertical direction, and the storage racks (500) slide in the drying cavity (230) along the vertical direction and are connected with locking components for locking the storage racks.

8. The electrothermal blowing dry oven of claim 7, wherein: be provided with on the inner wall of box (100) along slide rail (180) that vertical direction extends, supporter (500) fixedly connected with slide rail (180) sliding fit's slider (190), slide rail (180) are along its length direction upper interval distribution have a plurality of locking holes (181), be provided with jack (191) on slider (190), locking assembly includes lock bolt (240), jack (191) are through lock bolt (240) are pegged graft with one of them locking hole (181) and are cooperated.

9. The electrothermal blowing dry oven of claim 8, wherein: the sliding piece (190) and the storage rack (500) are combined to form an article, at least one of the inner top wall of the box body (100) and the upper ventilation plate (140) has a gap with the sliding rail (180), and the length of the gap is greater than or equal to the height of the article.

10. The electrothermal blowing dry oven according to any one of claims 1 to 6, wherein: the locking assembly (400) comprises a locking frame (401) which is movable between a locking position and a separating position, the locking frame (401) in the locking position is used for locking the box door (200) on the box body (100), and the locking frame (401) in the separating position is arranged on one side of the box body (100).

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