CN209926753U

CN209926753U - Electric heating air blast drying cabinet with temperature automatic control function

Info

Publication number: CN209926753U
Application number: CN201920565767.7U
Authority: CN
Inventors: 余桥芳; 肖坤良
Original assignee: Yichang Hengkang Technology Co Ltd
Current assignee: Yichang Hengkang Technology Co Ltd
Priority date: 2019-04-24
Filing date: 2019-04-24
Publication date: 2020-01-10
Anticipated expiration: 2029-04-24

Abstract

The utility model discloses an electric heat blast air drying cabinet with temperature automatic control function, including the drying cabinet box, the drying cabinet box includes heating chamber and control room, separates through the baffle between heating chamber and the control room, is provided with dampproof device in the control room, and dampproof device includes intake pipe, drying box, gas outlet, fan, humidity detection device and controller, and the heating chamber top is provided with air purification device, and air purification device is with external atmosphere and heating chamber intercommunication. Through setting up dampproof device, under the effect of drier, can absorb the dehumidification to humid air in the control room, ventilate for the control room simultaneously under the effect of fan for dry air circulates in the control room, has guaranteed the operating stability of temperature controller, is provided with air purification device at the heating chamber top moreover, can discharge the harmful gas that produces when partly sample is dry after filtering the absorption, and is friendly to the surrounding environment, can not harm operating personnel's health.

Description

Electric heating air blast drying cabinet with temperature automatic control function

Technical Field

The utility model relates to a dry technical field especially relates to an electric heat blast air drying cabinet with temperature automatic control function.

Background

Electrothermal blowing dry box is also called "oven", as the name suggests, adopt the electrical heating mode to carry out the forced air circulation drying test, divide into forced air drying and vacuum drying two kinds, forced air drying just blows off hot-blastly through circulating fan, guarantee the temperature balance in the incasement, vacuum drying adopts the vacuum pump to take out the air of incasement, let incasement atmospheric pressure be less than the ordinary pressure, make the product do the experiment under a very clean state, be an instrument and equipment commonly used commonly, mainly used dry sample, also can provide the required temperature environment of experiment. The drying box is applied to various industries such as chemical industry, medicine, casting, automobiles, food, machinery and the like.

Chinese patent publication No. CN 206755763U, the name of the utility model is an electrothermal blowing drying oven for preparing titanium white powder, which comprises a hollow box body with a drying chamber, the front panel of the box body is composed of a box door and a control panel, the control panel is fixed with a temperature controller, a power switch and a blower switch, the surface of the box door is provided with an observation window, the side panel of the box body is provided with a heat dissipation hole, the bottom of the drying chamber is fixed with a temperature controller, the temperature controller is connected with a heater, the side wall of the drying chamber is fixedly provided with a blower, the drying chamber is internally fixedly provided with a temperature sensor connected with the temperature controller, the top of the box body is provided with an exhaust valve, two groups of horizontal and corresponding support bars are fixedly arranged on the two side walls in the drying chamber, the support bars are provided with an extractable drying drawer, the heater is connected to a heating wire in, heating wires are also distributed on the box door.

However, there still exist some defects, for example, there is no moisture-proof device in the drying oven, the electric heat air-blast part is in the process of heating and eliminating dampness for the sample, because the temperatures of the two sides of the metal plate are not consistent, the water vapor in the air can condense on the metal plate near one side of the electronic component, especially when the temperature of the operation environment is low or the humidity is high, a large amount of water vapor can be retained in the temperature control part of the electric heat air-blast drying oven and is difficult to escape, because the temperature control part mainly comprises a temperature controller, under the humid environment, the temperature controller is easy to corrode and damage, which causes a safety hazard and affects the use of the electric heat air-blast drying oven, and some dried samples are easy to generate harmful gases in the drying process, and these harmful gases are directly discharged through the exhaust port without being processed, which not only causes pollution to the surrounding environment, but.

SUMMERY OF THE UTILITY MODEL

The utility model provides an electric heat blast air drying cabinet with temperature automatic control function solves among the prior art because of not carrying out dampproofing the processing to electronic component and leads to electronic component to be corroded damage easily and harmful gas directly to pass through the gas vent discharge untreated, easily causes the problem of pollution to the environment.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides an electric heat blast air drying cabinet with temperature automatic control function, includes the drying cabinet box, the drying cabinet box is including being used for being the heating chamber of putting the sample of treating drying and the control room that is used for installing the temperature controller, separates through the baffle between heating chamber and the control room, is provided with dampproof device in the control room, dampproof device includes:

the air inlet pipe is arranged on one side of the control room and is of a horn-shaped structure, and the large end of the air inlet pipe is positioned on one side, away from the control room, of the small end of the air inlet pipe;

the drying box is fixedly arranged at the small end of the air inlet pipe and is communicated with the air inlet pipe, and a drying agent is placed in the drying box;

the air outlet is positioned above the air inlet pipe;

the fan is arranged at the air outlet, is communicated with the air outlet and is used for controlling the indoor air circulation;

the humidity detection device is positioned at the top of the control room and used for detecting the humidity condition in the control room; and

and the controller is positioned outside the control chamber and is connected with the humidity detection device and the fan.

The top of the heating chamber is also provided with an air purification device which communicates the outside atmosphere with the heating chamber.

The drying box is also provided with a plurality of moisture absorption holes which are uniformly distributed and communicated with the control room.

The pore diameter of the moisture absorption hole is smaller than the diameter of the desiccant particles.

The drying oven box body is erected on a working plane through a support frame, the bottom of the heating chamber is provided with a plurality of air inlets and a heater positioned above the air inlets, the heater is installed in the heating chamber through a horizontal fixing plate, through holes which are uniformly distributed are formed in the horizontal fixing plate, the top of the heating chamber is provided with an air outlet, the air outlet is communicated with the air purification device, an object stage provided with a plurality of heat conduction holes is installed in the heating chamber, the object stage is positioned above the heater, a rectangular groove is formed in the object stage, and tin foil for placing a sample to be dried is laid in the rectangular groove;

for better placing and taking out the sample, be equipped with a plurality of parallel and interval arrangement's spout on the inner wall of heating chamber both sides, the objective table can be installed in the spout with sliding, install on the objective table with the tangent pulley of spout inner wall, the bottom of heating chamber is provided with the air-blower, be provided with symmetrical arrangement on the inner wall of heating chamber and have a plurality of temperature sensor, the forward-mounted of control room has the temperature controller, temperature sensor and heater all with the temperature controller is connected.

Air purification device has seted up filter chamber and adsorption chamber including purifying the casing in, purifying the casing, the one end of filter chamber with the gas vent intercommunication, the other end of filter chamber with the one end intercommunication of adsorption chamber, be provided with a plurality of parallel and interval arrangement's electrostatic filter screen in the filter chamber, be provided with the active carbon adsorption layer in the adsorption chamber, the other end intercommunication to external atmosphere of adsorption chamber.

In order to improve the filter effect, the electrostatic filter screen sets up to 2 at least, every all be equipped with the mesh that can supply the gas to pass through on the electrostatic filter screen, be close to the mesh diameter of the electrostatic filter screen of gas vent in two adjacent electrostatic filter screens is greater than the mesh diameter of the electrostatic filter screen of keeping away from the gas vent.

Compared with the prior art, the utility model discloses following beneficial effect has: through setting up dampproof device, under the effect of drier, can absorb the dehumidification to humid air in the control room, ventilate for the control room under the effect of fan, certain radiating effect has, can take away partly moist air, improve dehumidification effect, the operating stability of temperature controller has been guaranteed, the lid of dry box is connected with the control door on the control room through pressing arm simultaneously, automatic opening the lid after having realized the control door and opening, conveniently can directly change the drier at maintenance temperature controller in-process, the step that the lid was locked need be opened when having reduced to open the lid, make maintenance personal's work simpler, and be provided with air purification device at the heating chamber top, can discharge the harmful gas that produces when partial sample is dry after filtering adsorption, friendly to the surrounding environment, can not harm operating personnel's health.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of control room A-A of FIG. 1;

fig. 3 is a schematic structural view of the loading platform and the chute in fig. 1.

In the figure: 1-a drying box body, 2-a heating chamber, 3-a control chamber, 4-a drying box, 5-a drying agent, 6-an air purifying device, 7-a box body, 8-a box cover, 9-a tension spring, 10-a control door, 11-a pressing arm, 12-an air inlet pipe, 13-an air outlet, 14-a fan, 15-a humidity detecting device, 16-a controller, 17-a support frame, 18-an air inlet, 19-a heater, 20-a horizontal fixing plate, 21-an air outlet, 22-an object stage, 23-tin paper, 24-a sliding chute, 25-a pulley, 26-a fan, 27-a temperature sensor, 28-a temperature controller, 29-a filtering chamber, 30-an adsorption chamber and 31-a static filtering screen.

Detailed Description

As shown in fig. 1, an electric heating air blast drying oven with automatic temperature control function comprises a drying oven body 1, wherein the drying oven body 1 comprises a heating chamber 2 for placing a sample to be dried and a control chamber 3 for installing a temperature controller 28, the heating chamber 2 is separated from the control chamber 3 by a partition plate, a moisture-proof device is arranged in the control chamber 3, and the moisture-proof device comprises:

the air inlet pipe 12 is arranged on one side of the control room 3, the air inlet pipe 12 is of a horn-shaped structure, and the large end of the air inlet pipe 12 is positioned on one side, away from the control room 3, of the small end of the air inlet pipe 12;

the drying box 4 is fixedly arranged at the small end of the air inlet pipe 12 and is communicated with the air inlet pipe 12, and a drying agent 5 is placed in the drying box 4;

an air outlet 13 positioned above the air inlet pipe 12;

a fan 14 disposed at the air outlet 13 and communicating with the air outlet 13 for controlling air circulation in the chamber 3;

the humidity detection device 15 is positioned at the top of the control chamber 3 and is used for detecting the humidity condition in the control chamber 3; and

the controller 16 is located outside the control chamber 3 and is connected with the humidity detection device 15 and the fan 14, when the humidity detection device 15 detects that the humidity in the control chamber 3 exceeds a preset range, the humidity detection device 15 transmits a signal to the controller 16, the controller 16 sends a command to the fan 14, the fan 14 is opened for ventilation, part of humid air is taken away, meanwhile, the drying agent 5 absorbs moisture in the air, dry air flows in the control chamber 3, the dehumidification effect is good, and the normal operation of the equipment is guaranteed. Meanwhile, the hot air in the control room 3 is taken away, the temperature controller 28 and the like are cooled, the circuit in the temperature controller 28 is prevented from being burnt out due to the rapid increase of the temperature in the temperature controller 28, and the service life is prolonged.

The top of the heating chamber 2 is also provided with an air purification device 6, and the air purification device 6 communicates the outside atmosphere with the heating chamber 2.

As shown in fig. 2, the drying box 4 includes: box body 7, lid 8 and extension spring 9, box body 7 span intake pipe 12 tip, set up the box chamber that the usage adorned drier 5 in the box body 7, the box chamber is by lid 8 switching, and 8 edges of lid are articulated with box body 7, and lid 8 is connected to 9 one ends of extension spring, and 9 other ends of extension spring are fixed to the box intracavity wall, can keep the state that lid 8 opened the box chamber under the elasticity of extension spring 9.

The gate has been seted up to the lateral wall that dry box 4 was not installed to control room 3, the gate all communicates with intake pipe 12 and control room 3, the gate is by the switching of control door 10, the edge that control door 10 deviates from intake pipe 12 is articulated with 3 walls of control room, another edge of control door 10 can be dismantled through the lock with 3 walls of control room and be connected, the structure of lock is the same with the door lock structure who uses at home, control door 10 is connected to a pressure arm 11 one end, pressure arm 11 is located beside the lock, the pressure arm 11 other end is used for closing 8 locks of lid on box body 7 when the gate is closed to control door 10, pressure arm 11 is arc.

One end of the box cover 8 hinged to the box body 7 is a hinged end, the other end of the box cover 8 is a free end, and the hinged end of the box cover 8 is located on one side, close to the control door 10, of the free end of the box cover 8.

Above-mentioned structure has realized opening lid 8 automatically after control door 10 is opened, realized examining and repairing 28 in-process of temperature controller and can directly change drier 5, the step that lid 8 locked need be opened when opening lid 8 has been reduced, make maintenance personal's work simpler, because intake pipe 12 has certain hindrance effect to opening of lid 8, consequently bounce off lid 8 under extension spring 9 elasticity, it is gapped between lid 8 free end to intake pipe 12 wall, it is troublesome to have avoided leading to lid 8 to open completely because of intake pipe 12 wall blocks, greatly made things convenient for the operation. The pressing arm 11 is arc-shaped, so that the air inlet pipe 12 is prevented from blocking the rotation of the pressing arm 11, and the air inlet pipe 12 is ensured to have enough length. When having realized closing control room 3 simultaneously, the pressure arm 11 compresses tightly lid 8 on box body 7, self-closing lid 8 when realizing closing control room 3, because the hinged end of lid 8 is located 8 free ends of lid and is close to control door 10 one side, consequently, pressure arm 11 can earlier with lid 8 contact, then compress tightly lid 8 on box body 7, avoided 8 free ends of lid to be located 8 hinged ends of lid and be close to control door 10 one side and lead to lid 8 to open back pressure arm 11 can't contact with lid 8 again, guaranteed that pressure arm 11 makes the work of lid 8 closing box body 7 go on smoothly, realized closing.

The drying box 4 is also provided with a plurality of moisture absorption holes which are uniformly distributed and communicated with the control room 3.

The pore diameter of the moisture absorption hole is smaller than the diameter of the desiccant 5 particles.

The drying oven box body 1 is erected on a working plane through a support frame 17, the bottom of the heating chamber 2 is provided with a plurality of air inlets 18 and a heater 19 positioned above the air inlets 18, the heater 19 is installed in the heating chamber 2 through a horizontal fixing plate 20, through holes which are uniformly distributed are formed in the horizontal fixing plate 20, the top of the heating chamber 2 is provided with an air outlet 21, the air outlet 21 is communicated with the air purifying device 6, an object stage 22 provided with a plurality of heat conducting holes is installed in the heating chamber 2, the object stage 22 is positioned above the heater 19, a rectangular groove is formed in the object stage 22, and a tinfoil 23 used for placing a sample to be dried is laid in the rectangular groove;

as shown in fig. 3, for better placing and taking out the sample, a plurality of parallel and spaced chutes 24 are provided on the inner walls of both sides of the heating chamber 2, the object stage 22 is slidably mounted in the chutes 24, the object stage 22 is mounted with a pulley 25 tangential to the inner wall of the chute 24, and by the rolling connection of the pulley 25 and the chute 24, the mutual friction can be reduced, and the service life can be prolonged;

the bottom of heating chamber 2 is provided with air-blower 26, and air-blower 26 drives the outside air and enters into heating chamber 2 from air intake 18, realizes that steam from supreme circulation down, provides power for the flow of steam, be provided with symmetrical arrangement on the inner wall of heating chamber 2 has a plurality of temperature sensor 27, the front-portion mounting of control room 3 has temperature controller 28, temperature sensor 27 and heater 19 all with temperature controller 28 connects, and after the information processing that temperature controller 28 transmitted temperature sensor 27, the efficiency of control heater 19 work for can keep at an accurate temperature value in the drying cabinet, guaranteed drying effect.

Air purification device 6 has seted up filter chamber 29 and adsorption chamber 30 in purifying the casing including purifying the casing, the one end of filter chamber 29 with gas vent 21 intercommunication, the other end of filter chamber 29 with the one end intercommunication of adsorption chamber 30, be provided with a plurality of parallel and interval arrangement's electrostatic filter 31 in the filter chamber 29, be provided with the active carbon adsorption layer in the adsorption chamber 30, the other end of adsorption chamber 30 communicates to external atmosphere, and the gas that comes out from gas vent 21 is after filtering and adsorbing successively, and the harmful substance that can the at utmost purifies in the gas, guarantees that the combustion gas can not cause the pollution to the surrounding environment.

In order to improve the filtering effect, the number of the electrostatic filter screens 31 is at least 2, each electrostatic filter screen 31 is provided with a mesh through which air can pass, and the diameter of the mesh of the electrostatic filter screen 31 close to the air outlet 21 in the two adjacent electrostatic filter screens 31 is larger than that of the electrostatic filter screen 31 far away from the air outlet 21.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. The utility model provides an electric heat blast air drying cabinet with temperature automatic control function, includes the drying cabinet box, its characterized in that, the drying cabinet box is including being used for being the heating chamber of putting the sample of treating drying and the control room that is used for installing the temperature controller, separates through the baffle between heating chamber and the control room, is provided with dampproof device in the control room, dampproof device includes:

the air outlet is positioned above the air inlet pipe;

2. An electrothermal blowing dry box with automatic temperature control function according to claim 1, characterized in that the top of the heating chamber is further provided with an air purifying device which communicates the outside atmosphere with the heating chamber.

3. An electrothermal blowing drying box with a temperature automatic control function according to claim 1, wherein the drying box is further provided with a plurality of moisture absorption holes which are uniformly distributed and communicated with the control room.

4. An electrothermal blowing dry box having a temperature automatic control function according to claim 3, wherein the pore diameter of the moisture absorption hole is smaller than the diameter of the desiccant particles.

5. The electrothermal blowing drying oven with the automatic temperature control function according to claim 2, wherein the drying oven body is erected on a working plane through a support frame, the bottom of the heating chamber is provided with a plurality of air inlets and a heater positioned above the air inlets, the heater is installed in the heating chamber through a horizontal fixing plate, the horizontal fixing plate is provided with through holes which are uniformly distributed, the top of the heating chamber is provided with an air outlet which is communicated with the air purifying device, a carrying platform provided with a plurality of heat conducting holes is installed in the heating chamber, the carrying platforms are all positioned above the heater, the carrying platform is provided with a rectangular groove, tinfoil used for placing a sample to be dried is laid in the rectangular groove, a plurality of sliding grooves which are arranged in parallel and at intervals are arranged on the inner walls of two sides of the heating chamber, and the carrying platform can be installed in the sliding grooves in a sliding manner, install on the objective table with tangent pulley of spout inner wall, the bottom of heating chamber is provided with the air-blower, the output of air-blower with the heating chamber intercommunication, be provided with symmetrical arrangement on the inner wall of heating chamber and have a plurality of temperature sensor, the front-mounted of control room has the temperature controller, temperature sensor and heater all with the temperature controller is connected.

6. An electrothermal blowing drying box with automatic temperature control function according to claim 5, characterized in that the air purifying device comprises a purifying housing, a filtering chamber and an adsorption chamber are arranged in the purifying housing, one end of the filtering chamber is communicated with the exhaust port, the other end of the filtering chamber is communicated with one end of the adsorption chamber, a plurality of electrostatic filtering nets are arranged in the filtering chamber in parallel and at intervals, an activated carbon adsorption layer is arranged in the adsorption chamber, and the other end of the adsorption chamber is communicated to the outside atmosphere.

7. An electrothermal blowing dry box with temperature automatic control function according to claim 6, characterized in that the number of the electrostatic filter screens is at least 2, each electrostatic filter screen is provided with meshes through which air can pass, and the diameter of the mesh of the electrostatic filter screen close to the air outlet in two adjacent electrostatic filter screens is larger than that of the mesh of the electrostatic filter screen far from the air outlet.