CN209851218U - Ventilation circulating system for concrete prefabricated part curing kiln - Google Patents
Ventilation circulating system for concrete prefabricated part curing kiln Download PDFInfo
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- CN209851218U CN209851218U CN201821463967.3U CN201821463967U CN209851218U CN 209851218 U CN209851218 U CN 209851218U CN 201821463967 U CN201821463967 U CN 201821463967U CN 209851218 U CN209851218 U CN 209851218U
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Abstract
A ventilation circulating system for a curing kiln of a concrete prefabricated part comprises a ventilation circulating system arranged on the curing kiln, a temperature sensor arranged inside the curing kiln and a controller arranged outside the curing kiln; the air inlet is arranged at the top of the curing kiln, and the air inlet end of the air inlet is communicated with the inner cavity of the curing kiln; the fan is arranged outside the curing kiln, the air inlet end of the fan is connected with the air outlet end of the air suction opening in a through mode, the air outlet end of the fan is connected with one end of the ventilating duct in a through mode, and the other end of the ventilating duct is connected with the bottom of the curing kiln in a through mode; the input end of the controller is connected with the temperature controller, and the output end of the controller is connected with the fan through the frequency converter. The system can force the air in the curing kiln to flow and enable the air in the curing kiln to circulate up and down, can accelerate the heat dissipation rate of the radiating fins of the heating system in the curing kiln, and greatly improves the curing rate of the concrete prefabricated part and the curing quality of the concrete prefabricated part.
Description
Technical Field
The utility model relates to a concrete member curing kiln, concretely relates to precast concrete member curing kiln is with ventilation circulation system.
Background
The curing kiln for the concrete prefabricated parts is a key device in a production line of the concrete prefabricated parts, and the temperature rising rate and the temperature uniformity in the curing kiln directly influence the production rhythm of the concrete prefabricated parts and further influence the curing quality of the concrete prefabricated parts. The heating system of the existing curing kiln for the concrete prefabricated parts is arranged at the lower part of the curing kiln, and because the air in the kiln flows slowly, the heat transfer in the kiln is seriously influenced, on one hand, the temperature in the kiln rises slowly, and on the other hand, the temperature in the kiln is also uneven.
Disclosure of Invention
Problem to above-mentioned prior art exists, the utility model provides a precast concrete component is ventilation circulation system for curing kiln, this system can force the air flow in the curing kiln and make the air in the curing kiln circulate from top to bottom, can accelerate the rate of heat dissipation of heating system fin in the curing kiln, greatly improve precast concrete component curing rate and precast concrete component's maintenance quality.
In order to achieve the purpose, the utility model provides a ventilation circulation system for a concrete prefabricated part curing kiln, which comprises a ventilation circulation system arranged on the curing kiln, a temperature sensor arranged inside the curing kiln and a controller arranged outside the curing kiln, wherein the ventilation circulation system comprises an air suction inlet, a fan and an air pipeline;
the air inlet is arranged at the top of the curing kiln, and the air inlet end of the air inlet is communicated with the inner cavity of the curing kiln;
the air blower is arranged outside the curing kiln, an air inlet end of the air blower is connected with an air outlet end of the air suction opening in a through mode, an air outlet end of the air blower is connected with one end of the ventilating duct in a through mode, and the other end of the ventilating duct is connected with the bottom of the curing kiln in a through mode;
the input end of the controller is connected with the temperature controller, the output end of the controller is connected with the fan through the frequency converter, the controller supplies power through the direct-current power supply, and the fan supplies power through the alternating-current power supply;
the temperature sensor is used for detecting the temperature inside the curing kiln in a rapid temperature rise stage or a constant temperature stage in real time and sending the detection condition to the controller in real time;
the controller is used for controlling the high-frequency high-rotation-speed rotation of the fan through the frequency converter in the stage of rapid temperature rise; the control device is used for controlling the low-frequency and low-speed rotation of the fan through the frequency converter in the constant temperature stage.
In this technical scheme, by setting up the inlet scoop at curing kiln top through the fan, the inside air suction of curing kiln will be protected, the air of this part suction is supplied into by curing kiln bottom again, thereby form a circulating air current, the convection current that hot-air in the compulsory curing kiln can be quick, can show the transfer rate who accelerates the heat in the kiln, and then enable the temperature rise rate in the curing kiln and obviously rise, and enable the temperature in the curing kiln more even, can not only effectively improve the curing rate of maintenance spare, and can improve the maintenance quality of maintenance spare. The controller controls the rotating speed of the fan through the frequency converter according to the temperature change condition in the curing kiln, so that on one hand, the circulating air quantity can be controlled, and on the other hand, the air speed of hot air circulation can be controlled. In the temperature rising stage, the air in the curing kiln flows rapidly by adopting high frequency and high rotating speed, so that heat is diffused rapidly, the temperature in the kiln rises uniformly, and the phenomenon of nonuniform temperature in the traditional kiln is eliminated. In the constant temperature stage, after the temperature and humidity sensor in the curing kiln detects that the temperature in the kiln rises to a set value, the frequency converter is controlled to reduce the rotating speed of the fan, the temperature in the kiln is in the constant temperature stage, the temperature floating range can be effectively reduced, and therefore the temperature in the curing kiln is more stable.
Further, in order to improve the circulation effect, the fan is an axial flow fan.
Furthermore, in order to improve the circulation effect, the ventilation circulation systems are in multiple groups and are uniformly arranged along the length direction of the curing kiln.
Furthermore, in order to increase the area of the air suction opening and reduce the air inlet speed of the air suction opening, the air suction opening is in an inverted frustum shape, the flared end of the air suction opening is connected with the top of the curing kiln, and the necked end of the air suction opening is connected with the air inlet end of the fan.
Furthermore, the cross section of the ventilation pipeline is circular or square and is fixed outside the curing kiln through a fastening hoop.
Furthermore, the controller is 6ES72881SR60-0AA0, and the frequency converter is CIMR-AB4A0023 FBA.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is an assembly view of the present invention.
In the figure: 1. curing kiln, 2, inlet scoop, 3, fan, 4, air pipe, 5, fastening clamp.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1 and the drawings, a ventilation circulation system for a concrete prefabricated part curing kiln comprises a ventilation circulation system arranged on a curing kiln 1, a temperature sensor arranged inside the curing kiln 1 and a controller arranged outside the curing kiln 1, wherein the ventilation circulation system comprises an air suction opening 2, a fan 3 and a ventilation pipeline 4;
the air suction opening 2 is arranged at the top of the curing kiln 1, and the air inlet end of the air suction opening 2 is communicated with the inner cavity of the curing kiln 1;
the fan 3 is arranged outside the curing kiln 1, the air inlet end of the fan 3 is connected with the air outlet end of the air suction opening 2 in a through mode, the air outlet end of the fan 3 is connected with one end of the ventilating duct 4 in a through mode, and the other end of the ventilating duct 4 is connected with the bottom of the curing kiln 1 in a through mode;
the input end of the controller is connected with the temperature controller, the output end of the controller is connected with the fan through the frequency converter, the controller supplies power through the direct-current power supply, and the fan 3 supplies power through the alternating-current power supply;
the temperature sensor is used for detecting the temperature inside the curing kiln 1 in a rapid temperature rise stage or a constant temperature stage in real time and sending the detection condition to the controller in real time;
the controller is used for controlling the high-frequency high-rotation-speed rotation of the fan 3 through the frequency converter in the stage of rapid temperature rise; the control device is used for controlling the low-frequency and low-speed rotation of the fan 3 through the frequency converter in the constant temperature stage.
Through the fan by setting up the inlet scoop at curing kiln top, the inside air suction of curing kiln will be protected, the air of this part suction is supplied by curing kiln bottom again, thereby form a circulating air current, the convection current that hot-air in the compulsory curing kiln can be quick, can show the transmission rate who accelerates the heat in the kiln, and then the temperature rise rate that enables in the curing kiln obviously rises, and the temperature that enables in the curing kiln is more even, can not only effectively improve the curing rate of curing spare, and can improve the curing quality of curing spare. The controller controls the rotating speed of the fan through the frequency converter according to the temperature change condition in the curing kiln, so that on one hand, the circulating air quantity can be controlled, and on the other hand, the air speed of hot air circulation can be controlled. In the temperature rising stage, the air in the curing kiln flows rapidly by adopting high frequency and high rotating speed, so that heat is diffused rapidly, the temperature in the kiln rises uniformly, and the phenomenon of nonuniform temperature in the traditional kiln is eliminated. In the constant temperature stage, after the temperature and humidity sensor in the curing kiln detects that the temperature in the kiln rises to a set value, the frequency converter is controlled to reduce the rotating speed of the fan, the temperature in the kiln is in the constant temperature stage, the temperature floating range can be effectively reduced, and therefore the temperature in the curing kiln is more stable.
The fan 3 is an axial flow fan.
The ventilation circulating systems are in a plurality of groups and are uniformly arranged along the length direction of the curing kiln 1.
In order to increase the area of the air suction opening and reduce the air inlet speed of the air suction opening so as to be more favorable for reducing wind resistance and wind noise, the air suction opening 2 is in an inverted frustum shape, the flaring end of the air suction opening is connected with the top of the curing kiln 1, and the necking end of the air suction opening is connected with the air inlet end of the fan 3.
Preferably, the ventilation duct 4 is formed by rolling thin galvanized steel plates, and the cross section of the ventilation duct 4 is circular or square and is fixed outside the curing kiln 1 through a fastening clamp 5.
The controller is 6ES72881SR60-0AA0, the frequency converter is CIMR-AB4A0023FBA, and an expansion module 6ES7288-3AE04-0AA0 can be further arranged for externally connecting other equipment.
In the invention, the fan 3 sucks air from the top of the curing kiln 1 through the air suction opening 2, and hot air is sent back to the bottom of the curing kiln 1 through the pipeline 4, so that the circulation is realized, the temperature in the curing kiln 1 is uniformly increased, and the temperature of the upper part and the lower part in the kiln is more uniform.
Claims (6)
1. A ventilation circulation system for a concrete prefabricated part curing kiln comprises a ventilation circulation system arranged on a curing kiln (1), and is characterized by further comprising a temperature sensor arranged inside the curing kiln (1) and a controller arranged outside the curing kiln (1), wherein the ventilation circulation system comprises an air suction opening (2), a fan (3) and a ventilation pipeline (4);
the air suction opening (2) is arranged at the top of the curing kiln (1), and the air inlet end of the air suction opening (2) is communicated with the inner cavity of the curing kiln (1);
the air blower (3) is arranged outside the curing kiln (1), the air inlet end of the air blower (3) is connected with the air outlet end of the air suction opening (2) in a through mode, the air outlet end of the air blower (3) is connected with one end of the ventilating duct (4) in a through mode, and the other end of the ventilating duct (4) is connected with the bottom of the curing kiln (1) in a through mode;
the input end of the controller is connected with the temperature controller, the output end of the controller is connected with the fan through the frequency converter, the controller supplies power through the direct-current power supply, and the fan (3) supplies power through the alternating-current power supply;
the temperature sensor is used for detecting the temperature inside the curing kiln (1) in a rapid temperature rise stage or a constant temperature stage in real time and sending the detection condition to the controller in real time;
the controller is used for controlling the high-frequency high-rotation-speed rotation of the fan (3) through the frequency converter in the temperature rapid rising stage; the control device is used for controlling the low-frequency and low-speed rotation of the fan (3) through the frequency converter in the constant temperature stage.
2. The ventilation circulation system for the precast concrete curing kiln according to claim 1, characterized in that the fan (3) is an axial fan.
3. The ventilation circulation system for the curing kiln of the precast concrete members as set forth in claim 1 or 2, wherein the ventilation circulation system is provided in a plurality of groups and is uniformly arranged along the length direction of the curing kiln (1).
4. The ventilation circulation system for the curing kiln of the concrete prefabricated parts as claimed in claim 3, wherein the air suction opening (2) is in an inverted frustum shape, the flared end of the air suction opening is connected with the top of the curing kiln (1), and the necked end of the air suction opening is connected with the air inlet end of the fan (3).
5. The ventilation circulation system for the curing kiln of the concrete prefabricated parts as claimed in claim 4, characterized in that the cross section of the ventilation duct (4) is circular or square and is fixed outside the curing kiln (1) by a fastening clamp (5).
6. The ventilation circulation system for the precast concrete curing kiln as claimed in claim 5, wherein the controller is of type 6ES72881SR60-0AA0, and the frequency converter is of type CIMR-AB4A0023 FBA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821463967.3U CN209851218U (en) | 2018-09-07 | 2018-09-07 | Ventilation circulating system for concrete prefabricated part curing kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821463967.3U CN209851218U (en) | 2018-09-07 | 2018-09-07 | Ventilation circulating system for concrete prefabricated part curing kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209851218U true CN209851218U (en) | 2019-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821463967.3U Active CN209851218U (en) | 2018-09-07 | 2018-09-07 | Ventilation circulating system for concrete prefabricated part curing kiln |
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| CN (1) | CN209851218U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111070385A (en) * | 2020-01-02 | 2020-04-28 | 安徽铭源新型建材科技有限公司 | Inorganic light aggregate insulation board maintenance equipment |
-
2018
- 2018-09-07 CN CN201821463967.3U patent/CN209851218U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111070385A (en) * | 2020-01-02 | 2020-04-28 | 安徽铭源新型建材科技有限公司 | Inorganic light aggregate insulation board maintenance equipment |
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