Electrothermal constant-temperature blast drying box

Abstract

The utility model relates to the technical field of blast drying boxes, and discloses an electric heating constant-temperature blast drying box which comprises a drying box shell, a box door is arranged on the front face of the drying box shell, and a detection device is arranged in the drying box shell. The drying device comprises a side end containing frame, a drying heating box, a connecting cable, a sealing frame, a heating rod, a supporting plate, an air guiding piece, a draught fan piece and a heat insulation base plate. According to the electric heating constant-temperature air blowing drying box, by arranging the drying device, when the box door is closed, the back face of the box door is attached to the front face of the air guiding piece and the front face of the side end containing frame to form a sealed space, then the sealed space penetrates rightwards under the arrangement of the air inlet groove, and air generated by the fan piece on the left side is blown rightwards; and wind power generated by the fan part on the right side blows leftwards and oppositely, the to-be-dried part placed on the top of the supporting plate is subjected to hot air drying treatment through heating of the heating rods in the blowing process, the device can control the hot air direction to be aligned with the to-be-dried part for blowing, and the drying efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of blast drying ovens, in particular to an electric heating constant temperature blast drying oven. Background Art

[0002] Drying items is a crucial task in many fields, such as laboratories, pharmaceuticals, chemicals, and food processing. Electric constant-temperature blast drying ovens have emerged as a common drying equipment. They generate heat through electric heating elements and circulate hot air through a blast system, achieving rapid drying of items.

[0003] Prior art discloses an electric constant temperature blast drying oven with announcement number CN113566504A. The bottom of the oven is provided with a mounting cavity. The two side walls of the oven are provided with a heating cavity connected to the mounting cavity and multiple through-holes connected to the heating cavity. The top of the oven is provided with an air outlet slot. A conduit is connected to the air outlet end of the blower. There are two connecting pipes, each of which is connected to the conduit. Each connecting pipe is provided with multiple air outlet holes. A heating wire is provided inside the heating cavity. A rod is provided inside the oven. A placement plate is fixedly connected to the rod. The above-mentioned structural arrangement can make the heating of objects more uniform, and the heating effect of the electric constant temperature blast drying oven is better.

[0004] The above-mentioned electric constant temperature blast drying oven can send the hot air in the heating chamber into the box body through the through hole, so as to dry and heat the objects on the placement tray, so that the objects are heated more evenly. The heating effect of the electric constant temperature blast drying oven is better. However, the above-mentioned electric constant temperature blast drying oven simply dries by introducing hot air through the through hole during drying. The hot air cannot be controlled in the direction to be blown toward the objects to be dried, the drying efficiency is low, and the effect during use is not good, which needs to be improved. Utility Model Content

[0005] The purpose of the utility model is to provide an electric constant temperature blast drying oven to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: an electric constant temperature blast drying oven, comprising a drying oven shell, a door is provided on the front of the drying oven shell, a detection device is provided inside the drying oven shell, and a drying device is provided inside the drying oven shell.

[0007] The drying device includes a side end placement rack, a drying and heating box, a connecting cable, a sealing rack, a heating rod, a support plate, an air guide, a fan part and an insulation pad. The side end placement rack is fixedly connected to both sides of the inner wall of the drying box shell, the drying and heating box is fixedly connected to the top of the side end placement rack, the connecting cable is fixedly connected to the right side of the drying and heating box, the heating rod is fixedly connected to the bottom of the side end placement rack, the end of the connecting cable away from the right side of the drying and heating box is fixedly connected to the left side of the heating rod, the sealing rack is fixedly connected to the top of the side end placement rack, and the air guide is fixedly connected to the bottom of the side end placement rack.

[0008] Preferably, the detection device includes a supporting plate, a sealing gasket, a temperature detection sensor, a control device and connecting wires, the supporting plate is fixedly connected to both sides of the inner wall of the drying box shell, the temperature detection sensor is connected to the inside of the supporting plate, and the control device is fixedly connected to the top of the supporting plate.

[0009] Preferably, the sealing gasket is fixedly connected to the front side of the carrying plate, and the front side of the sealing gasket is aligned with the front side of the drying box shell.

[0010] Preferably, one end of the connecting wire away from the top of the control device is fixedly connected to the front side of the drying and heating box.

[0011] Preferably, the connecting wire is fixedly connected to the top of the control device, and the control device is electrically connected to the drying and heating box through the connecting wire. According to the difference between the preset temperature and the actual temperature, the power output of the heating element drying and heating box is accurately controlled by the connection control of the control device and the connecting wire to achieve more precise constant temperature control. The connecting wire plays the role of auxiliary electrical connection.

[0012] Preferably, the fan component is fixedly connected to the inner bottom end of the air guide component, and an air inlet groove is opened inside the side end placement rack. The setting of the air inlet groove can allow the wind to pass through the side end placement rack to the top of the side end placement rack, and then blow to the right under the guidance of the sealing rack, and the wind direction can be controlled to ensure that it blows towards the component to be dried.

[0013] Preferably, the thermal insulation pad is fixedly connected to the top of the side end placement rack, and the support plate is fixedly connected to the top of the thermal insulation pad.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The electric constant temperature blast drying oven is provided with a drying device. When the oven door is closed, the back of the oven door fits against the front of the air guide and the front of the side shelf to form a sealed space. Then, the oven door moves to the right under the setting of the air inlet slot. The wind force generated by the left fan part blows to the right, while the wind force generated by the right fan part blows to the left, blowing in opposite directions. During the blowing process, the workpiece to be dried placed on the top of the support plate is heated by the heating rod and dried with hot air. The device can control the direction of the hot air to blow towards the workpiece to be dried, and the drying efficiency is high.

[0016] The electric constant temperature blast drying oven is provided with a detection device. A temperature detection sensor is provided inside the supporting plate to detect the temperature inside the drying oven shell. According to the difference between the preset temperature and the actual temperature, the power output of the heating element drying heating box is accurately controlled in conjunction with the control of the control device and the connection control of the connecting wires, thereby achieving more accurate constant temperature control. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the detection device and drying device of the utility model;

[0019] Figure 3 For this utility model Figure 2 A in the middle is an enlarged structural diagram;

[0020] Figure 4 This is a schematic diagram of the three-dimensional top view of the detection device and drying device of the utility model.

[0021] In the figure: 1. Drying box shell; 2. Box door; 3. Detection device; 301. Load-bearing plate; 302. Sealing gasket; 303. Temperature detection sensor; 304. Control device; 305. Connecting wires; 4. Drying device; 401. Side end placement rack; 402. Drying and heating box; 403. Connecting cables; 404. Sealing rack; 405. Heating rod; 406. Support plate; 407. Air guide; 408. Fan; 409. Thermal insulation pad. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-4, the utility model provides the following technical solutions:

[0024] An electric constant temperature blast drying oven comprises a drying oven shell 1, a door 2 is provided on the front of the drying oven shell 1, a detection device 3 is provided inside the drying oven shell 1, and a drying device 4 is provided inside the drying oven shell 1.

[0025] The drying device 4 includes a side rack 401, a drying and heating box 402, a connecting cable 403, a sealing rack 404, a heating rod 405, a support plate 406, an air guide 407, a fan 408 and a heat insulation pad 409. The side rack 401 is fixedly connected to both sides of the inner wall of the drying box shell 1, the drying and heating box 402 is fixedly connected to the top of the side rack 401, the connecting cable 403 is fixedly connected to the right side of the drying and heating box 402, the heating rod 405 is fixedly connected to the bottom of the side rack 401, and the end of the connecting cable 403 away from the right side of the drying and heating box 402 is fixedly connected to the heating rod 405. On the left side, the sealing frame 404 is fixedly connected to the top of the side end placement rack 401, the air guide member 407 is fixedly connected to the bottom of the side end placement rack 401, the heat insulation pad 409 is fixedly connected to the top of the side end placement rack 401, the support plate 406 is fixedly connected to the top of the heat insulation pad 409, and the fan member 408 is fixedly connected to the inner bottom end of the air guide member 407. An air inlet groove is provided inside the side end placement rack 401. The setting of the air inlet groove can allow the wind to pass through the side end placement rack 401 and reach the top of the side end placement rack 401, and then blow to the right under the guidance of the sealing frame 404, and the wind direction can be controlled to ensure that it blows towards the components to be dried.

[0026] The detection device 3 includes a supporting plate 301, a sealing gasket 302, a temperature detection sensor 303, a control device 304 and a connecting wire 305. The supporting plate 301 is fixedly connected to both sides of the inner wall of the drying box shell 1, the temperature detection sensor 303 is connected to the inside of the supporting plate 301, the control device 304 is fixedly connected to the top of the supporting plate 301, the sealing gasket 302 is fixedly connected to the front of the supporting plate 301, the front of the sealing gasket 302 is aligned with the front of the drying box shell 1, the end of the connecting wire 305 away from the top of the control device 304 is fixedly connected to the front of the drying and heating box 402, the connecting wire 305 is fixedly connected to the top of the control device 304, the control device 304 is electrically connected to the drying and heating box 402 through the connecting wire 305, and the power output of the heating element drying and heating box 402 is accurately controlled according to the difference between the preset temperature and the actual temperature, in combination with the connection control of the control device 304 and the connecting wire 305, to achieve more precise constant temperature control, and the connecting wire 305 plays the role of auxiliary electrical connection.

[0027] When in use, the device to be dried is placed on the support plate 406 on the top of the side shelf 401, which is surrounded by heating rods 405. Then the drying heating box 402 can be started and connected with the cable 403 to heat the heating rods 405. At the same time, the fan part 408 at the bottom end of the air guide part 407 can be started to generate upward wind force. When the box door 2 is closed, the back of the box door 2 is in contact with the front of the air guide part 407 and the front of the side shelf 401 to form a sealed space. Then, under the setting of the air inlet slot, the wind is blown to the right. The wind force generated by the fan part 408 on the left blows to the right, while the wind force generated by the fan part 408 on the right blows to the The force blows to the left and in the opposite direction. During the blowing process, the heating rod 405 heats the workpiece to be dried placed on the top of the support plate 406 and performs hot air drying. The device can control the direction of the hot air to blow towards the workpiece to be dried, with high drying efficiency and good effect during use. A detection device 3 is provided inside the drying box shell 1, and a temperature detection sensor 303 is provided inside the supporting plate 301 for detecting the temperature inside the drying box shell 1. According to the difference between the preset temperature and the actual temperature, the control device 304 and the connection control of the connecting wire 305 are used to accurately control the power output of the heating element drying heating box 402 to achieve more accurate constant temperature control.

[0028] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electric constant temperature blast drying oven, comprising a drying oven housing (1), characterized in that: The front of the drying box housing (1) is provided with a box door (2), the interior of the drying box housing (1) is provided with a detection device (3), and the interior of the drying box housing (1) is provided with a drying device (4); The drying device (4) includes a side end placement rack (401), a drying and heating box (402), a connecting cable (403), a sealing rack (404), a heating rod (405), a supporting plate (406), an air guide (407), a fan (408) and a heat insulation pad (409), wherein the side end placement rack (401) is fixedly connected to both sides of the inner wall of the drying box shell (1), and the drying and heating box (402) is fixedly connected to the top of the side end placement rack (401). The connecting cable (403) is fixedly connected to the right side of the drying and heating box (402), the heating rod (405) is fixedly connected to the bottom of the side end placement rack (401), the end of the connecting cable (403) away from the right side of the drying and heating box (402) is fixedly connected to the left side of the heating rod (405), the sealing rack (404) is fixedly connected to the top of the side end placement rack (401), and the air guide (407) is fixedly connected to the bottom of the side end placement rack (401).

2. The electric constant temperature blast drying oven according to claim 1, characterized in that: The detection device (3) comprises a bearing plate (301), a sealing gasket (302), a temperature detection sensor (303), a control device (304) and a connecting wire (305); the bearing plate (301) is fixedly connected to both sides of the inner wall of the drying box shell (1); the temperature detection sensor (303) is connected to the inside of the bearing plate (301); and the control device (304) is fixedly connected to the top of the bearing plate (301).

3. The electric constant temperature blast drying oven according to claim 2, characterized in that: The sealing gasket (302) is fixedly connected to the front surface of the bearing plate (301), and the front surface of the sealing gasket (302) is aligned with the front surface of the drying box shell (1).

4. The electric constant temperature blast drying oven according to claim 2, characterized in that: One end of the connecting wire (305) away from the top of the control device (304) is fixedly connected to the front of the drying and heating box (402).

5. The electric constant temperature blast drying oven according to claim 2, characterized in that: The connecting wire (305) is fixedly connected to the top of the control device (304), and the control device (304) is electrically connected to the drying and heating box (402) through the connecting wire (305).

6. The electric constant temperature blast drying oven according to claim 1, characterized in that: The fan component (408) is fixedly connected to the inner bottom end of the air guide component (407), and an air inlet slot is provided inside the side end placement rack (401).

7. The electric constant temperature blast drying oven according to claim 1, characterized in that: The thermal insulation pad (409) is fixedly connected to the top of the side end placement rack (401), and the support plate (406) is fixedly connected to the top of the thermal insulation pad (409).

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