CN212457403U - Air heater of adsorption dryer - Google Patents
Air heater of adsorption dryer Download PDFInfo
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- CN212457403U CN212457403U CN202020535034.1U CN202020535034U CN212457403U CN 212457403 U CN212457403 U CN 212457403U CN 202020535034 U CN202020535034 U CN 202020535034U CN 212457403 U CN212457403 U CN 212457403U
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Abstract
The invention relates to an air heater of an adsorption dryer, which comprises a heating box, wherein an air inlet pipe and an air outlet pipe are arranged on the heating box, an electromagnetic valve I is arranged on the air outlet pipe, an air inlet fan is arranged on the air inlet pipe, a plurality of groups of grid plates are obliquely arranged in the heating box, the edges of the grid plates are fixedly connected with the corresponding inner side wall of the heating box, the plurality of groups of grid plates divide the heating box into a plurality of groups of heating cavities, each grid plate comprises a net-shaped part and a solid part, any two adjacent groups of heating cavities are communicated through the pore diameter of the net-shaped part, the net-shaped parts in any two adjacent groups of grid plates are arranged at opposite positions, heating plates are respectively paved on the outer side wall of the solid part, temperature detectors are respectively arranged in the heating cavities, the temperature detectors are arranged at air inlets corresponding to the heating, wherein, the coil pipe is provided with an electromagnetic valve II and a check valve. The invention has simple structure and convenient use.
Description
Technical Field
The invention relates to the technical field of dryers, in particular to an air heater of an adsorption dryer.
Background
At present, the air heater for the adsorption dryer comprises a long strip-shaped heating box, an air inlet is formed in one end of the heating box, an air outlet is formed in the other end of the heating box, an air inlet fan is connected to the air inlet through a pipeline, and heaters are uniformly distributed in the heating box from one end to the other end of the heating box. When the air heating works, the air linearly advances in the heating box, and in order to ensure the heating effect, the air heater adopts the mode of increasing the length of the heating box to prolong the staying time of the air in the heating box. However, extending the length of the heating box takes up a large amount of space.
An air heater for an adsorption dryer, such as that disclosed in CN208333031U, which solves the above problems, has some disadvantages, such as: although it separates into a snakelike wind channel through vertical overhead gage and lower baffle with the heating cabinet and is used for the gas circulation, this passageway still has the not enough problem of gas path length, and does not fully utilize the space in the heating cabinet to even detect gaseous problem back through temperature-detecting device, this part is gaseous still directly to be discharged and to be processed in putting equipment down, leads to this part gas temperature not up to standard and influence subsequent processing work, and it can only detect the gas temperature after discharging simultaneously, makes it can not in time adjust the gas temperature in the heating cabinet.
Disclosure of Invention
The invention aims to provide an air heater of an adsorption dryer.
The technical problem of the invention is mainly solved by the following technical scheme:
an air heater of an adsorption dryer comprises a rectangular heating box wrapped with a heat insulating layer, wherein one end of the heating box is provided with an air inlet pipe, the other end of the heating box is provided with an air outlet pipe, the air outlet pipe is provided with an electromagnetic valve I, the air inlet pipe is connected with an air inlet fan through a pipeline, a plurality of groups of grid plates are obliquely arranged in the heating box, the edges of the grid plates are fixedly connected with the inner side wall corresponding to the heating box, the heating box is divided into a plurality of groups of heating cavities by the plurality of groups of grid plates, each grid plate comprises a net-shaped part and a solid part, the two groups of heating cavities are communicated through the aperture of the net-shaped part, the installation positions of the net-shaped parts in any two adjacent groups of grid plates are opposite, the outer side wall of the solid part is paved with heating plates, the heating cavities are internally provided with temperature detectors, the air outlet pipe is also provided with a coiled pipe connected with the air inlet pipe, the coiled pipe is provided with an electromagnetic valve II and a check valve, the inlet end of the coiled pipe is connected with the air outlet pipe at the upstream of the electromagnetic valve I, and the outlet end of the coiled pipe is connected with the air inlet pipe at the downstream of the air inlet fan.
Preferably, the height of the net part is smaller than that of the solid part, and the net part and the solid part are integrally arranged.
Preferably, the mesh portion in the upstream panel has a larger pore size than the mesh portion in the downstream panel.
Preferably, the temperature detector is located immediately adjacent to the web portion upstream in the corresponding heating chamber.
Preferably, the check valve is located on the coiled pipe between the air inlet pipe and the electromagnetic valve II, and the outer side wall of the coiled pipe is wrapped with the heat insulation layer.
The invention has the beneficial effects that:
1. in the invention, a curve-shaped gas circulation channel is formed among the heating cavities, so that the path length and the path of gas in the heating box are prolonged, the heating effect and the heating efficiency are enhanced, and the length of the heating box is not required to be enlarged.
2. According to the invention, whether the temperature of the gas flowing out of the upstream heating cavity of the downstream heating cavity reaches the standard is detected by the temperature detector in the downstream heating cavity, so that the working efficiency of the heating plate in the heating cavity is controlled, the gas flowing through the heating cavity is heated to reach the standard, the purposes of timely detecting the gas temperature and timely heating the flowing gas to meet the requirement are achieved, and the problem that the working efficiency of the heating plate at each position in the heating box cannot be timely adjusted to heat the gas to the state meeting the requirement is prevented.
3. When the temperature of the gas flowing into the gas outlet pipe is detected to be not up to the standard, the electromagnetic valve I is closed, the electromagnetic valve II is opened, so that the gas exhausted from the heating box flows back into the heating box through the gas outlet pipe, the coil pipe and the gas inlet pipe to be heated again to meet the requirement, and when the temperature of the gas flowing into the gas outlet pipe is detected to be up to the standard, the electromagnetic valve I is opened for gas exhaust of the gas outlet pipe, and the electromagnetic valve II is closed, so that series flow between the gas inlet pipe.
Drawings
Fig. 1 is a schematic structural view of the present invention.
In the figure: 1. heating cabinet, 2, intake pipe, 3, outlet duct, 4, solenoid valve I, 5, air inlet fan, 6, grating, 61, netted part, 62, solid part, 7, heating chamber, 8, hot plate, 9, thermodetector, 10, coil pipe, 11, solenoid valve II, 12, check valve.
Detailed Description
The technical solution of the present invention is further specifically described below by way of examples with reference to fig. 1.
The utility model provides an air heater of absorption formula desiccator, has rectangle heating cabinet 1 of insulating layer including the parcel, wherein one end of heating cabinet 1 is equipped with intake pipe 2, and the other end of heating cabinet 1 is provided with outlet duct 3, be provided with solenoid valve I4 on the outlet duct 3, wherein intake pipe 2 has air intake fan 5 through the pipe connection.
As shown in fig. 1, a plurality of groups of grid plates 6 are obliquely arranged in the heating box 1, wherein the edges of the grid plates 6 are fixedly connected with the corresponding inner side wall of the heating box 1, the heating box 1 is divided into a plurality of groups of heating cavities 7 by the plurality of groups of grid plates 6, each grid plate 6 comprises a net-shaped part 61 and a solid part 62, any two adjacent groups of heating cavities 7 are communicated with each other through the pore diameter of the net-shaped part 61, the installation positions of the net-shaped parts 61 in any two adjacent groups of grid plates 6 are opposite, and the heating plate 8 is laid on the outer side wall of the solid part 62.
In the embodiment, after the gas flows into the heating box 1 through the gas inlet pipe 2, the gas gradually flows into the heating cavity 7 located at the downstream through the aperture of the mesh part 61 in the grating plate 6, and the like, and finally flows to the gas outlet pipe 3 to be discharged, in the process, when the gas flows in the heating cavity 7, the heating plates 8 on the side wall of the solid part 62 work to heat the flowing gas, and the contact area between the gas and the gas is enlarged by the way that the two groups of heating plates 8 on the two sides of each group of heating cavity 7 heat the gas, so that the heating efficiency and the heating effect are enhanced.
The grid plates 6 are obliquely arranged and divide the heating box 1 into a plurality of groups of heating cavities 7, and the two adjacent groups of heating cavities 7 are communicated through the apertures of the mesh parts 61 in the grid plates 6, so that a curve-shaped gas circulation channel is formed between the groups of heating cavities 7, the path length and the path of gas in the heating box 1 are prolonged, the heating effect and the heating efficiency are enhanced, and meanwhile, the length of the heating box 1 is not required to be increased. Moreover, because the grating 6 is obliquely arranged, the heating cavity 7 is in an oblique state, and the length of the heating cavity 7 in this state is obviously longer than that of a heating cavity formed by vertically arranging the grating 6 in the prior art, that is, compared with a gas circulation channel formed by a plurality of groups of containing cavities 7 separated by the oblique grating 6 in the prior art, the length of the gas circulation channel formed by a plurality of groups of containing cavities separated by the vertical grating is obviously increased, so that the gas path duration and path are obviously prolonged, and the heating effect and efficiency are improved.
And the mesh part 61 in the upstream grid 6 has a larger pore size than the mesh part 61 in the downstream grid 6, and when the gas flows through the mesh part 61, the mesh part 61 has a pore size which can perform a step-by-step filtering function on the gas flowing through the heating chamber 1, thereby effectively removing impurities possibly contained in the gas.
Meanwhile, the heating chamber 7 is internally provided with a temperature detector 9, wherein the temperature detector 9 is arranged at the air inlet corresponding to the heating chamber 7, as shown in fig. 1, the temperature detector 9 is closely adjacent to the mesh part 61 corresponding to the middle upstream of the heating chamber 7, so that whether the temperature of the gas flowing out of the upstream heating chamber 7 reaches the standard or not is detected according to the temperature detector 9 in the downstream heating chamber 7, and the working efficiency of the heating plate 8 in the heating chamber 7 is controlled, so that the gas flowing through the heating chamber is heated to reach the standard, the purposes of timely detecting the gas temperature and timely heating the flowing gas to meet the requirement are achieved, and the problem that the working efficiency of the heating plate 8 at each position in the heating box 1 cannot be timely adjusted to heat the gas to the state meeting the requirement.
In this embodiment, the outlet pipe 3 is further provided with a coil pipe 10 connected with the inlet pipe 2, wherein the coil pipe 10 is provided with an electromagnetic valve II11 and a check valve 12, the inlet end of the coil pipe 10 is connected with the outlet pipe 3 at the upstream of the electromagnetic valve I4, and the outlet end of the coil pipe 10 is connected with the inlet pipe 2 at the downstream of the inlet fan 5. When the temperature of the gas flowing into the gas outlet pipe 3 is detected to be not up to the standard, the electromagnetic valve I4 is closed, the electromagnetic valve II11 is opened, so that the gas exhausted from the heating box 1 flows back to the heating box 1 through the gas outlet pipe 3, the coil pipe 10 and the gas inlet pipe 2 to be heated again to meet the requirement, when the temperature of the gas flowing into the gas outlet pipe 3 is detected to be up to the standard, the electromagnetic valve I4 is opened to exhaust the gas outlet pipe 3, the electromagnetic valve II11 is closed, and series flow between the gas inlet pipe 2 and the gas outlet pipe 3.
Preferably, the check valve 12 is located on the coil pipe 10 between the air inlet pipe 2 and the electromagnetic valve II11, wherein an insulating layer is wrapped on the outer side wall of the coil pipe 10. When gas circulates in the coil pipe 10, the heat preservation layer can prevent that heat in the gas from permeating through the lateral wall of the coil pipe 10 and volatilizing in a large quantity, wherein when the coil pipe 10 is ventilating, the check valve 12 can prevent the gas in the air inlet pipe 2 from flowing backward to the air outlet pipe 3.
The present invention has been described in detail, but the above description is only a preferred embodiment of the present invention, and is not to be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (5)
1. An air heater of an adsorption dryer comprises a rectangular heating box wrapped with a heat insulation layer, wherein one end of the heating box is provided with an air inlet pipe, the other end of the heating box is provided with an air outlet pipe, the air outlet pipe is provided with an electromagnetic valve I, the air inlet pipe is connected with an air inlet fan through a pipeline, the air heater is characterized in that a plurality of groups of grid plates are obliquely arranged in the heating box, the edges of the grid plates are fixedly connected with the inner side wall corresponding to the heating box, the heating box is divided into a plurality of groups of heating cavities by the plurality of groups of grid plates, each grid plate comprises a net-shaped part and a solid part, the two groups of heating cavities are communicated through the aperture of the net-shaped part, the installation positions of the net-shaped parts in any two adjacent groups of grid plates are opposite, heating plates are paved on the outer side wall of the solid part, temperature detectors, the air outlet pipe is also provided with a coiled pipe connected with the air inlet pipe, the coiled pipe is provided with an electromagnetic valve II and a check valve, the inlet end of the coiled pipe is connected with the air outlet pipe at the upstream of the electromagnetic valve I, and the outlet end of the coiled pipe is connected with the air inlet pipe at the downstream of the air inlet fan.
2. The air heater of claim 1, wherein the web portion is shorter in height than the solid portion and is integrally disposed therebetween.
3. The air heater of claim 1, wherein the mesh portion of the upstream panel has a larger pore size than the mesh portion of the downstream panel.
4. The air heater of claim 1, wherein the temperature detector is located immediately upstream of the heating cavity.
5. The air heater of claim 1, wherein the check valve is located on a coil pipe between the air inlet pipe and the electromagnetic valve II, and an insulating layer is wrapped on the outer side wall of the coil pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020535034.1U CN212457403U (en) | 2020-04-13 | 2020-04-13 | Air heater of adsorption dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020535034.1U CN212457403U (en) | 2020-04-13 | 2020-04-13 | Air heater of adsorption dryer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212457403U true CN212457403U (en) | 2021-02-02 |
Family
ID=74472433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020535034.1U Active CN212457403U (en) | 2020-04-13 | 2020-04-13 | Air heater of adsorption dryer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212457403U (en) |
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2020
- 2020-04-13 CN CN202020535034.1U patent/CN212457403U/en active Active
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