Drying chamber temperature measuring system of double-air-cavity dryer and double-air-cavity dryer

Abstract

The utility model discloses a drying chamber temperature measuring system of a double-air-cavity drying machine and the double-air-cavity drying machine, and relates to the field of double-air-cavity drying equipment. A drying chamber temperature measuring system of a double-air-cavity dryer comprises an upper circulating temperature measuring probe, a lower circulating temperature measuring probe and a temperature measuring device, wherein the detection end of the upper circulating temperature measuring probe is arranged in an upper air return part of an air supply box; the detection ends of the chamber temperature measurement probes are respectively arranged in the air inlet parts of the two different air supply boxes; the detection end of the lower circulating temperature measurement probe is arranged in a lower air return part in the air supply box; the upper circulating temperature measurement probe, the cavity temperature measurement probe and the lower circulating temperature measurement probe are all positioned and mounted on the side wall of an air supply box; the problem that according to an existing double-air-cavity type drying box, temperature detection in an air supply cavity is not comprehensive is solved.

Description

Technical Field

[0001] The utility model relates to the field of double-air-cavity drying equipment, in particular to a drying chamber temperature measurement system for a double-air-cavity drying machine. Background Art

[0002] In the current field of drying agricultural products, drying rooms and mesh belt drying boxes have different applications. In terms of drying targets, drying rooms are suitable for drying small quantities of high-quality materials, while mesh belt drying boxes are suitable for drying large quantities of materials.

[0003] Among them, the dual-chamber mesh belt drying oven can provide better and more uniform air supply, which can achieve higher quality drying of the materials in the mesh belt drying oven. Due to the special characteristics of the dual-chamber dryer, its air supply structure is also different from that of the airless chamber dryer. How to accurately detect and display the temperature of the drying chamber is a challenge. If the drying chamber temperature cannot be accurately displayed, the air supply temperature cannot be accurately adjusted, and qualified products cannot be dried at the appropriate temperature.

[0004] Currently, if temperature probes are arranged in layers, as in a windless chamber dryer, wiring must be installed inside the oven, which is unsafe and inconvenient. Furthermore, the relationship between the drying chamber temperature and the supply air temperature cannot be dynamically displayed. Furthermore, the temperature inside the dual air chamber cannot be fully collected. Utility Model Content

[0005] One of the purposes of the present invention is to provide a temperature measurement system for a drying chamber of a double-air-cavity drying machine, so as to solve the problem that the temperature detection in the air supply cavity of the current double-air-cavity drying box is not comprehensive.

[0006] At the same time, the second purpose of the present invention is to provide a double-air chamber dryer, so as to solve the problem that a temperature measuring device can be conveniently and safely installed in the air supply box of the current double-air chamber mesh belt dryer and comprehensive temperature measurement can be performed.

[0007] In order to solve one of the above problems, the present invention adopts the following technical means:

[0008] A temperature measurement system for a drying chamber of a double-air chamber dryer, comprising:

[0009] The upper circulation temperature measuring probe has its detection end constructed in the upper return air part of the air supply box;

[0010] The chamber temperature measuring probe has its detection end respectively arranged in the air inlet part of two different air supply boxes;

[0011] The lower circulation temperature measuring probe has its detection end constructed in the lower return air part in the air supply box;

[0012] The upper circulation temperature measuring probe, the chamber temperature measuring probe and the lower circulation temperature measuring probe are all positioned and installed on the side wall of the air supply box.

[0013] Preferably, the upper circulation temperature measuring probe, the chamber temperature measuring probe and the lower circulation temperature measuring probe are all covered with PVC protective covers, and the measuring ends are exposed to the outside, and the PVC protective covers are detachably connected to the side wall of the air supply box.

[0014] Furthermore, there are two groups of chamber temperature measuring probes, which are respectively arranged on the side walls of the two air supply boxes. The chamber temperature measuring probes include a plurality of branch probes, and the branch probes are horizontally arranged in sequence along the length extension direction of the air supply box.

[0015] Furthermore, the detection end of the upper circulation temperature probe is arranged on the airflow path of the upper circulation air, the measuring end of the chamber temperature probe is arranged at the air outlet position of the air supply system, and the measuring end of the lower circulation temperature probe is arranged on the airflow path of the lower circulation air.

[0016] Furthermore, the signal output ends of the upper circulation temperature measuring probe, the chamber temperature measuring probe and the lower circulation temperature measuring probe are all connected to the signal input end points of the PLC controller.

[0017] In addition, in order to achieve the second of the above purposes, the present application also includes a dual-cavity dryer, including a drying chamber and air supply boxes arranged on both sides of the drying chamber, and the air supply box is constructed with the aforementioned dual-cavity dryer drying chamber temperature measurement system.

[0018] Preferably, the air supply box is constructed with an upper circulation air duct serving as the upper return air part, an air supply chamber serving as the air inlet part, and a lower circulation air duct serving as the lower return air part. The upper circulation air duct is connected to the air supply part through a first circulation fan, wherein the first circulation fan is used to send the airflow into the upper circulation air duct and introduce it into the air supply chamber. The lower circulation air duct is connected to the air supply chamber through a second circulation fan, wherein the second circulation fan is used to send the airflow into the lower circulation air duct and introduce it into the air supply chamber. The upper circulation temperature probe is arranged on the air inlet side of the first circulation fan, and the lower circulation temperature probe is arranged on the air inlet side of the second circulation fan.

[0019] Furthermore, the air outlet end of the air supply pipe for blowing in drying hot air is arranged in the middle of the air supply cavity, and the chamber temperature measuring probe is arranged at the air outlet position of the air supply pipe.

[0020] Furthermore, the air supply pipe includes a horizontally arranged air outlet pipe, and the air outlets are distributed on the air outlet pipe.

[0021] During use, this application has the following beneficial effects:

[0022] An upper circulation temperature probe is used to measure the temperature of the upper return air flowing from the upper side of the drying chamber in the upper return air section. A chamber temperature probe is used to measure the temperature of the air supply chamber in the air supply box, that is, the temperature of the airflow entering the air supply box for drying and preparing to enter the drying chamber. Combined with a lower circulation temperature probe, the temperature of the lower return air flowing from the lower side of the drying chamber in the lower return air section is measured. Using these three temperature probes, the temperature of the airflow in three different states in the air supply box of the dual-cavity dryer is detected, thus achieving comprehensive temperature detection. At the same time, all probes are installed on the side wall of the air supply box, so that the wiring of each probe can be routed from the outside of the air supply box, thus avoiding the safety hazards caused by internal wiring. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a structural diagram of the double-air chamber drying machine of the present utility model.

[0024] Figure 2 This is a side view schematic diagram of the temperature probe layout of the utility model.

[0025] Among them, 1-upper circulation temperature probe, 2-air supply box, 3-chamber temperature probe, 4-lower circulation temperature probe, 5-branch probe, 6-drying chamber, 7-upper circulation air duct, 8-air supply chamber, 9-lower circulation air duct, 10-first circulation fan, 11-second circulation fan, 12-air supply pipe, 13-air outlet pipe, 14-air outlet. DETAILED DESCRIPTION

[0026] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0028] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0030] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of the present invention is typically placed when in use, or are the orientations or positional relationships commonly understood by those skilled in the art. These terms are intended solely to facilitate the description of the present invention and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0032] Please refer to Figure 1 and Figure 2 As shown, a temperature measurement system for a double-air chamber dryer includes:

[0033] The upper circulation temperature measuring probe 1 has its detection end constructed in the upper return air part of the air supply box 2;

[0034] The chamber temperature probe 3, whose detection ends are respectively arranged in the air inlet parts of two different air supply boxes 2;

[0035] The lower circulation temperature measuring probe 4 has its detection end constructed in the lower return air part in the air supply box 2;

[0036] The upper circulation temperature measuring probe 1 , the chamber temperature measuring probe 3 and the lower circulation temperature measuring probe 4 are all positioned and installed on the side wall of the air supply box 2 .

[0037] The upper circulation temperature measuring probe 1 is used to measure the temperature of the upper return air flowing back from the upper side of the drying chamber 6 in the upper return air part, and the chamber temperature measuring probe 3 is used to measure the temperature of the air supply chamber 8 in the air supply box 2, that is, the temperature of the airflow entering the air supply box 2 for drying and preparing to enter the drying chamber 6 is measured. Combined with the lower circulation temperature measuring probe 4, the temperature of the lower return air flowing back from the lower side of the drying chamber 6 in the lower return air part is measured. In this way, the three temperature measuring probes are used to perform temperature detection on the airflows in three different states in the air supply box 2 of the double-cavity dryer, thereby realizing comprehensive temperature detection.

[0038] Specifically, the upper circulation temperature measuring probe 1, the chamber temperature measuring probe 3 and the lower circulation temperature measuring probe 4 are all covered with PVC protective covers, and the measuring ends are exposed to the outside. The PVC protective covers are detachably connected to the side wall of the air supply box 2.

[0039] That is to say, except for the detection end, the upper circulation temperature measuring probe 1, the chamber temperature measuring probe 3 and the lower circulation temperature measuring probe 4 are all covered in the PVC protective cover. By utilizing the hardness of the PVC protective cover, each temperature measuring probe can be extended into the interior of the corresponding chamber along the horizontal direction, and the PVC protective cover is used to provide certain support to each probe so that it can measure the temperature at a specific position.

[0040] At the same time, under the action of the PVC protective cover, the lines of each probe can extend from the air supply box 2, thereby achieving the purpose of wiring outside the air supply box 2, which can effectively increase the safety of the wiring.

[0041] Furthermore, there are two groups of chamber temperature measuring probes 3, which are respectively arranged on the side walls of the two air supply boxes 2. The chamber temperature measuring probes 3 include several branch probes 5, and the branch probes 5 are horizontally arranged in sequence along the length extension direction of the air supply box 2.

[0042] Furthermore, the detection end of the upper circulation temperature probe 1 is arranged on the airflow path of the upper circulation air, the measuring end of the chamber temperature probe 3 is arranged at the air outlet 14 of the air supply system, and the measuring end of the lower circulation temperature probe 4 is arranged on the airflow path of the lower circulation air.

[0043] Furthermore, for a double-air chamber dryer, the branch probe 5 arranged along the length direction of the air box 2 can be used to comprehensively collect the temperature of the hot air flowing out of the air supply pipe 12 arranged along the length direction of the air box 2.

[0044] At the same time, accurate temperature collection can be performed on both the upper and lower circulating air.

[0045] Furthermore, the signal output ends of the upper circulation temperature measuring probe 1, the chamber temperature measuring probe 3 and the lower circulation temperature measuring probe 4 are all connected to the signal input ends of the PLC controller.

[0046] By aggregating the temperature data detected by each temperature probe into the PLC controller, it is convenient for the operator to accurately control the temperature of each area in the air supply box 2.

[0047] In addition, in order to achieve the second of the above purposes, the present application also includes a dual-cavity dryer, including a drying chamber 6 and an air supply box 2 arranged on both sides of the drying chamber 6, and the air supply box 2 is constructed with the aforementioned dual-cavity dryer drying chamber temperature measurement system.

[0048] Specifically, for the dual-cavity dryer in which the present application constructs a dual-cavity dryer drying chamber temperature measurement system, in addition to the aforementioned advantages, all probes are installed on the side wall of the air supply box 2, so that the wiring of each probe can be routed from the outside of the air supply box 2, thereby avoiding the safety hazards caused by internal wiring.

[0049] Preferably, in order to be able to measure the upper circulation air and the lower circulation more accurately, the air supply box 2 is constructed with an upper circulation air duct 7 as the upper return air part, an air supply cavity 8 as the air inlet part, and a lower circulation air duct 9 as the lower return air part. The upper circulation air duct 7 is connected to the air supply part through a first circulation fan 10, wherein the first circulation fan 10 is used to send the airflow to the upper circulation air duct 7 and introduce it into the air supply cavity 8. The lower circulation air duct 9 is connected to the air supply cavity 8 through a second circulation fan 11, wherein the second circulation The fan 11 is used to send the airflow into the lower circulation air duct 9 and introduce it into the air supply chamber 8. The upper circulation temperature measuring probe 1 is arranged on the air inlet side of the first circulation fan 10, so as to avoid the temperature of the upper circulation air from decreasing under the action of the first circulation fan 10 when the upper circulation air enters the air supply chamber 8 through the first circulation fan 10. The lower circulation temperature measuring probe 4 is arranged on the air inlet side of the second circulation fan 11, so as to avoid the temperature of the lower circulation air from decreasing under the action of the second circulation fan 11 when the lower circulation air enters the air supply chamber 8 through the second circulation fan 11.

[0050] Furthermore, the air outlet end of the air supply pipe 12 for blowing in drying hot air is arranged in the middle of the air supply cavity 8 , and the chamber temperature measuring probe 3 is arranged at the air outlet 14 of the air supply pipe 12 .

[0051] Furthermore, the air supply pipe 12 includes a horizontally arranged air outlet pipe 13 , and the air outlets 14 are distributed on the air outlet pipe 13 .

[0052] Furthermore, while ensuring that hot air flows smoothly into the air supply box 2 of the double-air chamber dryer, the temperature of the incoming hot air is comprehensively measured.

[0053] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A temperature measurement system for a double-air chamber dryer, characterized in that: include: An upper circulation temperature measuring probe (1), the detection end of which is constructed in the upper return air portion of the air supply box (2); The chamber temperature measuring probe (3) has its detection end respectively arranged in the air inlet portion of two different air supply boxes (2); A lower circulation temperature measuring probe (4), the detection end of which is constructed in the lower return air portion in the air supply box (2); The upper circulation temperature measuring probe (1), the chamber temperature measuring probe (3), and the lower circulation temperature measuring probe (4) are all positioned and installed on the side wall of the air supply box (2).

2. A double-air chamber drying chamber temperature measurement system according to claim 1, characterized in that: The upper circulation temperature measuring probe (1), the chamber temperature measuring probe (3) and the lower circulation temperature measuring probe (4) are all covered with PVC protective covers, and the measuring ends are exposed to the outside. The PVC protective covers are detachably connected to the side wall of the air supply box (2).

3. The double-air chamber drying chamber temperature measurement system of claim 1, characterized in that: There are two groups of chamber temperature measuring probes (3), which are respectively arranged on the side walls of the two air supply boxes (2). The chamber temperature measuring probes (3) include a plurality of branch probes (5), and the branch probes (5) are horizontally arranged in sequence along the length extension direction of the air supply box (2).

4. A temperature measurement system for a double-air chamber dryer according to claim 1, characterized in that: The detection end of the upper circulation temperature measuring probe (1) is arranged on the airflow path of the upper circulation air, the measurement end of the chamber temperature measuring probe (3) is arranged at the air outlet position of the air supply system, and the measurement end of the lower circulation temperature measuring probe (4) is arranged on the airflow path of the lower circulation air.

5. A temperature measurement system for a double-air chamber dryer according to any one of claims 1 to 4, characterized in that: The signal output ends of the upper circulation temperature measuring probe (1), the chamber temperature measuring probe (3) and the lower circulation temperature measuring probe (4) are all connected to the signal input end points of the PLC controller.

6. A double-air chamber drying machine, comprising a drying chamber (6) and air supply boxes (2) arranged on both sides of the drying chamber (6), characterized in that: The air supply box (2) is constructed with the double-air chamber drying chamber temperature measurement system according to any one of claims 1 to 4.

7. The double-air chamber drying machine according to claim 6, characterized in that: The air supply box (2) is constructed with an upper circulation air duct (7) as the upper return air part, an air supply chamber (8) as the air inlet part, and a lower circulation air duct (9) as the lower return air part. The upper circulation air duct (7) is connected to the air supply chamber (8) through a first circulation fan (10), wherein the first circulation fan (10) is used to send airflow from the upper circulation air duct (7) to the air supply chamber (8). The lower circulation air duct (9) is connected to the air supply chamber (8) through a second circulation fan (11), wherein the second circulation fan (11) is used to send airflow from the lower circulation air duct (9) to the air supply chamber (8). The upper circulation temperature measuring probe (1) is arranged on the air inlet side of the first circulation fan (10), and the lower circulation temperature measuring probe (4) is arranged on the air inlet side of the second circulation fan (11).

8. The double-air chamber drying machine according to claim 7, characterized in that: The air outlet end of the air supply pipe (12) for blowing in drying hot air is arranged in the middle of the air supply cavity (8), and the chamber temperature measuring probe (3) is arranged at the air outlet position of the air supply pipe (12).

9. The double-air chamber drying machine according to claim 8, characterized in that: The air supply pipe (12) comprises a horizontally arranged air outlet pipe (13), and the air outlets (14) are distributed on the air outlet pipe (13).

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