CN213045035U

CN213045035U - Automatic temperature control system

Info

Publication number: CN213045035U
Application number: CN202021825684.6U
Authority: CN
Inventors: 汪义雄; 董李; 秦军卫
Original assignee: Yuexi County Great Wall Machinery Co ltd
Current assignee: Yuexi County Great Wall Machinery Co ltd
Priority date: 2020-08-27
Filing date: 2020-08-27
Publication date: 2021-04-27
Anticipated expiration: 2030-08-27

Abstract

The utility model discloses an automatic temperature control system, including frame, U-shaped groove pot group, first, two combustion chambers, air intake, first, two air-blowers and first, two solenoid valves, first, two combustion chambers's top fixedly connected with heat-conducting plate respectively, the both sides of frame are fixed with the heat insulating board respectively to be formed with the heat conduction cavity, be provided with first, two temperature measurement component in it respectively, first, two temperature measurement component pass through the controller respectively with first, two air-blowers and first, two solenoid valve electricity are connected. The utility model discloses a first temperature element, second temperature element, controller, first air-blower, second air-blower, first solenoid valve and second solenoid valve constitute automatic temperature control system, have realized automatic, accurate accuse temperature for the temperature of the section of completing and the section of managing all can be controlled in the error range of 10 ℃, thereby has guaranteed the tealeaves quality.

Description

Automatic temperature control system

Technical Field

The utility model relates to a tea production processing equipment technical field specifically is an automatic temperature control system.

Background

In the field of tea production and processing, water removing and strip tidying are one of important production and processing procedures and are key procedures for determining the quality of tea, such as shape, color, aroma, taste and the like, so that various types of water removing and strip tidying equipment are produced, the heat supply modes of the equipment are usually independent, namely various heat sources (a hot blast stove, a hot blast generator and the like) capable of providing different air temperatures are configured according to the technological requirements of water removing and strip tidying, the temperature control error is large, the operation is inconvenient, the connection of various tea making technologies is solved, the labor cost is reduced, the production efficiency is improved, and the quality of the tea, such as the shape, the color, the aroma, the taste and the like is not substantially improved.

In order to solve the problems, the water-removing and carding machine is suitable for transportation, integrates the functions of heat collection, water removal and carding, can improve the stability of the tea quality, reduce the occupied space, reduce the production cost and improve the economic benefit. The heating device adopts a heating mode of heating by using firewood, coal and the like as fuels to provide hot air or adopts a heating mode of providing hot air by electric heating. The heating device is a combustion furnace with a certain interval below the tank pot, and high temperature generated by combusting the fuels such as the firewood, the coal and the like is transferred into the tank pot in a heat conduction mode so as to meet the temperature condition required by enzyme deactivation. However, in the process of heating the grooved pot, the grooved pot also needs to do transverse reciprocating motion on the rack along with the pot rack, and during the motion, "disturbed airflow" is generated below the grooved pot, so that part of heat is discharged from the side edge of the grooved pot along with the airflow, and the temperature is difficult to be effectively controlled.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the defects and the insufficiency of the prior art and providing an automatic temperature control system to realize automatic and accurate temperature control and ensure the quality of tea.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides an automatic temperature control system, including the frame, can follow the width direction of frame and make reciprocating motion's pot frame and the U-shaped groove pot group on it, preceding, the rear end of pot frame are in the below of U-shaped groove pot group is fixedly connected with baffle respectively, the anterior segment of U-shaped groove pot group is for fixing green section, back end for reason strip section, the frame on the below of fixing green section and reason strip section corresponds respectively and is fixed with first combustion chamber and second combustion chamber, its characterized in that: the heat-conducting plates are fixedly connected to the tops of the first combustion chamber and the second combustion chamber respectively, heat-insulating plates are fixed to two sides of the rack respectively along the length direction of the U-shaped groove pot group, heat-conducting chambers are formed among the bottom of the U-shaped groove pot group, the heat-conducting plates, the heat-insulating plates and the baffle plates, and first temperature-measuring elements and second temperature-measuring elements corresponding to the green removing section and the tidying section are arranged in the heat-conducting chambers respectively;

the combustion chamber comprises a first combustion chamber, a second combustion chamber and a controller, wherein one side of the bottom of the first combustion chamber and one side of the bottom of the second combustion chamber are respectively provided with an air inlet, the first combustion chamber and the second combustion chamber are respectively and correspondingly connected with a first air blower and a second air blower, the air inlets are respectively and correspondingly provided with a first electromagnetic valve and a second electromagnetic valve, the controller is respectively and electrically connected with the first temperature measuring element and the second temperature measuring element on one hand, and is respectively and electrically connected with the first air blower, the second air blower, the first electromagnetic valve and the second electromagnetic valve on.

Furthermore, the other sides of the bottoms of the first combustion chamber and the second combustion chamber are respectively provided with a fuel inlet and are respectively provided with a furnace door.

Furthermore, the heat insulation plate is made of asbestos plates, and the two ends of the heat insulation plate are high, and the middle of the heat insulation plate is low.

Furthermore, a protective net is fixedly arranged on the outer side of the first air blower and the outer side of the second air blower on the frame.

Furthermore, a first relay and a first frequency converter are respectively installed in a power supply loop of the first air blower, a second relay and a second frequency converter are respectively installed in a power supply loop of the second air blower, and the controller is respectively electrically connected with the first relay, the second relay, the first frequency converter and the second frequency converter.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses the length direction of following groove pot group in the both sides of frame fixes the both ends height respectively, the low heat insulating board in middle part for form the heat conduction cavity of relative sealing between the bottom of groove pot group, heat-conducting plate, heat insulating board and the baffle, when the groove pot was along the width direction of frame reciprocating motion, the heat can not produce thereupon "disturbance air current" and take place to leak, provides important prerequisite for setting up the measuring element's in the heat conduction cavity detection precision and reliability.

2. The utility model discloses a first temperature element, second temperature element, controller, first air-blower, second air-blower, first solenoid valve and second solenoid valve constitute automatic temperature control system, have realized automatic, accurate accuse temperature for the temperature of the section of completing and the section of managing all can be controlled in the error range of 10 ℃, thereby has guaranteed the tealeaves quality.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the present invention.

Fig. 3 is a third schematic structural diagram of the present invention.

Fig. 4 is a schematic structural view of the pot rack, the U-shaped groove pot group, the heat conducting plate, the heat insulating plate and the baffle of the utility model.

Fig. 5 is a schematic structural view of the middle U-shaped groove pot set in the inverted buckle state.

Fig. 6 is a schematic structural view of the intermediate heat-insulating plate of the present invention.

Fig. 7 is an electrical control schematic block diagram of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-7, an automatic temperature control system comprises a frame 1, a pot frame 2 capable of reciprocating along the width direction of the frame 1 and a U-shaped groove pot group 3 thereon, wherein the front end and the rear end of the pot frame 2 are respectively fixedly connected with a baffle 21 below the U-shaped groove pot group 3, the front section of the U-shaped groove pot group 3 is a green removing section 31, the rear section is a strip tidying section 32, a first combustion chamber 4 and a second combustion chamber 5 are respectively and correspondingly fixed below the de-enzyming section 31 and the strip tidying section 32 on the rack 1, the tops of the first combustion chamber 4 and the second combustion chamber 5 are respectively and fixedly connected with a heat conduction plate 6, heat insulation plates 7 are respectively fixed on two sides of the rack 1 along the length direction of the U-shaped groove pot group 3, heat conduction cavities are formed among the bottom of the U-shaped groove pot group 3, the heat conduction plates 6, the heat insulation plates 7 and the baffle plates 21, and a first temperature measuring element 8 and a second temperature measuring element 9 which correspond to the de-enzyming section 31 and the strip tidying section 32 are respectively arranged in the heat conduction cavities;

one side of the bottom of the first combustion chamber 4 and one side of the bottom of the second combustion chamber 5 are respectively provided with an air inlet, the air inlets are respectively and correspondingly connected with a first air blower 10 and a second air blower 11, the air inlets are respectively and correspondingly provided with a first electromagnetic valve 12 and a second electromagnetic valve 13, the temperature measuring device further comprises a controller 14, and the controller 14 is respectively and electrically connected with the first temperature measuring element 8 and the second temperature measuring element 9 on one hand, and is respectively and electrically connected with the first air blower 10, the second air blower 11, the first electromagnetic valve 12 and the second electromagnetic valve 13 on the other hand.

In the utility model, the opposite side of the bottom of the first combustion chamber 4 and the second combustion chamber 5 is respectively provided with a fuel inlet, and is respectively provided with a furnace door 15.

The heat insulation plate 7 is made of asbestos plates, so that the pressure bearing capacity is high, and the heat insulation performance is high; and the two ends of the heat insulation plate 7 are high, and the middle part of the heat insulation plate is low, so that when the U-shaped groove pot group 3 is heated and the middle part of the U-shaped groove pot group is bent downwards, a reliable matching relation can be formed with the bottom of the pot, and heat is further prevented from leaking.

The frame 1 is fixedly provided with a protective screen 16 at the outer sides of the first blower 10 and the second blower 11, and the first blower 10, the second blower 11, corresponding electronic components, circuit wiring, a motor for driving the pan frame 2 and the U-shaped groove pan group 3 to reciprocate, a transmission mechanism and the like can be isolated and protected from the outer sides, so that the safety production is ensured.

A first relay 17 and a first frequency converter 18 are respectively installed in a power supply loop of the first air blower 10, a second relay 19 and a second frequency converter 20 are respectively installed in a power supply loop of the second air blower 11, and the controller 14 is respectively electrically connected with the first relay 17, the second relay 19, the first frequency converter 18 and the second frequency converter 20.

The invention is further described below with reference to the accompanying drawings:

in this example, the first temperature measuring element 8 and the second temperature measuring element 9 both adopt thermocouples, the controller 14 adopts a PLC, and the controller 14 stores therein an upper limit temperature threshold and a lower limit temperature threshold required for tea leaf fixation and strip tidying, which can be specifically set according to actual production and processing requirements, and are not limited herein.

And starting the whole equipment to work. When the tea leaves are enzyme-deactivating, the fresh tea leaves are thrown into the enzyme-deactivating section 31 of the U-shaped groove pot group 3, at the moment, the pot frame 2 and the U-shaped groove pot group 3 on the pot frame reciprocate along the width direction of the frame 1, heat generated when fuel such as firewood or coal is combusted in the first combustion chamber 4 is transferred to the enzyme-deactivating section 31 of the U-shaped groove pot group 3 through the heat conduction plate 6 and the heat conduction cavity in sequence, and the tea leaves are enzyme-deactivating and heat supplying is carried out from the lower part.

Because the U-shaped groove pot group 3 inclines from the fixation section 31 to the strip tidying section 32, the tea leaves after fixation can naturally transit to the strip tidying section 32 under the action of the vibration force and the gravity generated when the U-shaped groove pot group 3 reciprocates.

When the tea leaves are arranged, the tea leaves enter the strip arranging section 32 of the U-shaped groove pot group 3, at the moment, the pot frame 2 and the U-shaped groove pot group 3 on the pot frame reciprocate along the width direction of the rack 1, heat generated when fuel such as firewood or coal is combusted in the second combustion chamber 5 is transmitted to the green removing section 32 of the U-shaped groove pot group 3 through the heat conducting plate 6 and the heat conducting cavity in sequence, and heat is supplied for tea leaf green removing from the lower part.

In the process of water removing and strip tidying, the first temperature measuring element 8 and the second temperature measuring element 9 respectively and correspondingly detect the real-time temperature of the water removing section 31 and the strip tidying section 32, and send the detected temperature data to the controller 14, the controller 14 sends control instructions to the first relay 17, the first frequency converter 18, the second relay 19 and the second frequency converter 20 in real time according to the set upper limit temperature threshold and the set lower limit temperature threshold, so that the opening and closing of the first air blower 10 and the second air blower 11 are controlled in real time, the blowing amount of the first air blower 10 and the second air blower 11 is adjusted, and the oxygen content in the first combustion chamber 4 and the second combustion chamber 5 is controlled; in addition, control instructions are sent to the first electromagnetic valve 12 and the second electromagnetic valve 13 in real time to control the opening and closing of the corresponding air inlets, so that automatic and accurate temperature control is realized, and the temperatures of the water-removing section 31 and the strip tidying section 32 can be controlled within the error range of +/-10 ℃.

Taking the temperature control of tea fixation as an example, the method specifically comprises the following steps: the upper temperature threshold and the lower temperature threshold stored in the controller 14 are 350 ℃ and 250 ℃ respectively. The first temperature measuring element 8 detects the real-time temperature of the water-removing section 31, and sends the detected temperature data to the controller 14, when the real-time temperature value is lower than the set lower limit temperature threshold (250 ℃), the controller 14 sends a control instruction (level signal) to the first frequency converter 18, the first frequency converter 18 increases the rotating speed of the motor of the first air blower 10, the motor runs at a high speed, the blast volume of the first air blower 10 is increased, so that the oxygen content in the first combustion chamber 4 is increased, the combustion is accelerated, and the temperature rise rate is accelerated; when the real-time temperature value reaches the set lower limit temperature threshold (250 ℃), the controller 14 sends a control instruction (level signal) to the first frequency converter 18, and the first frequency converter 18 properly reduces the motor rotation speed of the first air blower 10 compared with the previous rotation speed so that the first air blower runs at a low speed or a medium speed, and properly reduces the air blowing amount of the first air blower 10, thereby properly reducing the oxygen content in the first combustion chamber 4, properly slowing down combustion, and properly slowing down the temperature rise rate; when the real-time temperature value reaches the set upper limit temperature threshold (350 ℃), the controller 14 sends control instructions (level signals) to the first electromagnetic valve 12 and the first relay 17 respectively, the first electromagnetic valve 12 is closed, the first relay 17 is disconnected, the corresponding air inlet is closed, and the first air blower 10 stops working. Therefore, automatic temperature control is realized, and the aim of saving resources is fulfilled.

It should be noted that, because the heat transfer process is from the heat conducting plate 6 to the enzyme deactivating section 31 through the heat conducting chamber, there is inevitable heat loss, and therefore there is an error in temperature, but this embodiment can control the temperature error range within an error range of ± 10 ℃, and the accuracy is high.

The temperature control principle and process of the tea strip tidying are the same, and are not described in detail herein.

Although the present description is described in terms of embodiments, not every embodiment includes only a single embodiment, and such description is for clarity only, and those skilled in the art should be able to integrate the description as a whole, and the embodiments can be appropriately combined to form other embodiments as will be understood by those skilled in the art.

Therefore, the above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application; all changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims

1. The utility model provides an automatic temperature control system, including the frame, can follow the width direction of frame and make reciprocating motion's pot frame and the U-shaped groove pot group on it, preceding, the rear end of pot frame are in the below of U-shaped groove pot group is fixedly connected with baffle respectively, the anterior segment of U-shaped groove pot group is for fixing green section, back end for reason strip section, the frame on the below of fixing green section and reason strip section corresponds respectively and is fixed with first combustion chamber and second combustion chamber, its characterized in that: the heat-conducting plates are fixedly connected to the tops of the first combustion chamber and the second combustion chamber respectively, heat-insulating plates are fixed to two sides of the rack respectively along the length direction of the U-shaped groove pot group, heat-conducting chambers are formed among the bottom of the U-shaped groove pot group, the heat-conducting plates, the heat-insulating plates and the baffle plates, and first temperature-measuring elements and second temperature-measuring elements corresponding to the green removing section and the tidying section are arranged in the heat-conducting chambers respectively;

2. The automatic temperature control system of claim 1, wherein: and fuel inlets are respectively arranged on the other sides of the bottoms of the first combustion chamber and the second combustion chamber, and furnace doors are respectively installed on the fuel inlets.

3. The automatic temperature control system of claim 1, wherein: the heat insulation plate is made of asbestos plates, and the two ends of the heat insulation plate are high, and the middle of the heat insulation plate is low.

4. The automatic temperature control system of claim 1, wherein: and a protective net is fixedly arranged on the frame at the outer sides of the first air blower and the second air blower.

5. The automatic temperature control system of claim 1, wherein: the power supply circuit of the first air blower is provided with a first relay and a first frequency converter, the power supply circuit of the second air blower is provided with a second relay and a second frequency converter, and the controller is electrically connected with the first relay, the second relay, the first frequency converter and the second frequency converter.