Device for rapidly detecting calorific value of coal for power

Abstract

The utility model discloses a power coal calorific value rapid detection device, which comprises an operation table, a support arm, an assembly top plate, a driving device, a connecting piece, a combustion base and a combustion detection assembly, and is characterized in that one end of the combustion base is fixedly connected with a sealing side plate, and the other end of the connecting piece is provided with a plurality of connecting points; the multiple combustion bases are arranged on the operation table and connected with one sides of the multiple sealing side plates respectively, the multiple combustion detection assemblies are installed on the top of the operation table in a circumferential array mode, and the multiple combustion detection assemblies and the multiple combustion bases are located on the same track. Therefore, the whole device adopts a circumferential array type structure, the detection channels are arranged at equal intervals and are synchronously driven, and a precise guide rail system and a damping structure are combined, so that the sample transmission stability, the detection batch performance and the result comparison performance are remarkably improved, and the problems that multiple groups of samples cannot be detected at the same time, the efficiency is low, and the data comparability is poor in the traditional technology are solved; and rapid, accurate and efficient detection of multiple samples is realized.

Description

Technical Field

[0001] This utility model relates to the field of coal detection technology, and in particular to a rapid detection device for the calorific value of power coal. Background Technology

[0002] Currently, the commonly used technical methods for detecting the calorific value of coal for power generation include oxygen bomb calorimetry, thermogravimetric analysis, and thermal conductivity method. Although these methods have a certain level of detection accuracy, the overall detection cycle is long, the operation process is cumbersome, and they rely on the experimental personnel to complete the sample preparation, device start-up, and data reading steps one by one. Especially in industrial sites or in situations where multiple batches of coal samples need to be evaluated for calorific value, traditional devices usually adopt a single-sample detection structure, that is, only one coal sample can be tested for combustion and heat at a time, resulting in low detection efficiency and difficulty in meeting the requirements of detection speed and sample batch in practical applications.

[0003] The main shortcoming of existing technology is that it cannot achieve simultaneous detection of multiple coal samples for power generation. Since traditional equipment generally operates in a single-channel mode, samples need to be placed and tested one by one, making it impossible to quickly acquire multiple sets of data. This not only significantly limits the overall detection efficiency but also increases the number of manual operations and the risk of error accumulation. When it is necessary to compare and analyze coal samples from different sources or of different types, existing devices cannot acquire corresponding data in the same detection cycle, thus affecting the comparability of results and work efficiency. Utility Model Content

[0004] This utility model aims to at least partially solve one of the technical problems in the related art.

[0005] Therefore, the purpose of this utility model is to propose a rapid detection device for the calorific value of power coal. Through a circumferentially arrayed combustion base and detection components, it achieves unified driving and positioning of multiple samples, and combines temperature sensors to independently monitor the temperature changes of each sample after combustion, which significantly improves the detection efficiency and avoids the inefficiency of traditional devices that detect one sample at a time. This meets the needs of rapid comparative analysis of multiple samples in industrial scenarios.

[0006] To achieve the above objectives, this utility model proposes a rapid detection device for the calorific value of power coal, comprising an operating platform, support arms, an assembly top plate, a drive device, connectors, combustion bases, and combustion detection components. Multiple support arms are fixedly connected to the top of the operating platform in a circumferential array. The assembly top plate is fixedly connected to the top of the multiple support arms. The drive device is mounted on the top of the assembly top plate. One end of each connector is mounted on the output end of the drive device. Multiple combustion bases are slidably engaged with the top of the operating platform in a circumferential array. One end of each combustion base is fixedly connected to a sealing side plate. The other end of each connector has multiple connection points, each connected to one side of one of the sealing side plates. Multiple combustion detection components are mounted in a circumferential array on the top of the operating platform, and the multiple combustion detection components and the multiple combustion bases are located on the same track.

[0007] This utility model discloses a rapid detection device for the calorific value of power coal. Utilizing a hinged structure between the end of the connector and the sealing side plate on the combustion base, the combustion base is precisely slidably positioned within the guide groove at the top of the operating table. This allows the coal sample to be sequentially fed into the combustion chamber of the combustion detection assembly located on the same track. After combustion in the placement chamber of the combustion base, the heat is transferred to the detection chamber above through a partition. A temperature sensor collects real-time data on water temperature changes within the detection chamber, and the calorific value is calculated after data processing by the data system. The device adopts a circumferential array structure, with each detection channel equidistantly arranged and synchronously driven. Combined with a precision guide rail system and damping structure, this significantly improves the stability of sample transmission, the batch processing capability, and the comparability of results. It overcomes the problems of traditional technologies, such as the inability to simultaneously detect multiple samples, low efficiency, and poor data comparability, achieving rapid, accurate, and efficient detection of multiple samples.

[0008] In addition, the rapid detection device for the calorific value of coal for power generation proposed above according to this utility model may also have the following additional technical features:

[0009] Specifically, the connector includes a drive arm, a connector head, a first hinge ear, a connecting arm, and a second hinge ear. One end of the drive arm is fixedly connected to the output end of the drive device, the connector head is fixedly connected to the other end of the drive arm, a plurality of first hinge ears are fixedly connected to the outer wall of the connector head in a circumferential array, and a plurality of second hinge ears are respectively fixedly connected to one side of a plurality of sealing side plates. The connecting arm is provided between the first hinge ears and the second hinge ears and is connected to them through the connecting arm.

[0010] Specifically, the combustion detection assembly includes a combustion chamber, a placement chamber, a detection chamber, and a temperature sensor. Multiple combustion chambers are arranged in a circumferential array on the top of the operating table, and the multiple combustion chambers and multiple combustion bases are located on the same track. The placement chamber is located at one end of the combustion chamber, and its inner wall is abutted against the edge of the sealing side plate. The detection chamber is located inside the combustion chamber, above the placement chamber, and separated by a partition. The temperature sensor is installed on the inner wall of the detection chamber.

[0011] Specifically, the top of the control panel is provided with multiple guide grooves for the combustion base to slide, and the combustion chambers are all located at the ends of the guide grooves.

[0012] Specifically, the combustion chamber has an exhaust port installed on its side wall, and a water injection hole is installed on the top of the combustion chamber relative to the detection chamber, with a sealing plug installed on the water injection hole.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the drive device of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the connector of this utility model;

[0018] Figure 4 This utility model Figure 3 A magnified structural diagram of part A in the middle.

[0019] As shown in the figure:

[0020] 1. Operating platform; 11. Guide groove; 2. Support arm; 3. Assembly top plate; 4. Drive device; 5. Connector; 51. Drive arm; 52. Connector head; 53. First hinge ear; 54. Connecting arm; 55. Second hinge ear; 6. Combustion base; 61. Sealing side plate; 7. Combustion detection assembly; 71. Combustion chamber; 72. Placement compartment; 73. Detection compartment; 74. Temperature sensor. Detailed Implementation

[0021] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. Rather, the embodiments of this utility model include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0022] The rapid detection device for the calorific value of power coal according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0023] like Figures 1-4 As shown, the rapid detection device for the calorific value of coal for power generation according to this utility model embodiment may include an operating table 1, a support arm 2, an assembly top plate 3, a driving device 4, a connector 5, a combustion base 6, and a combustion detection component 7.

[0024] Multiple support arms 2 are fixedly connected to the top of the operating table 1 in a circular array, the assembly top plate 3 is fixedly connected to the top of the multiple support arms 2, and the drive device 4 is installed on the top of the assembly top plate 3.

[0025] It should be noted that the multiple support arms 2 described in this embodiment are fixedly connected to the top of the operating table 1 in a circumferential array. The support arms 2 are made of high-strength alloy material to enhance the stability and heat resistance of the overall structure and adapt to long-term high-temperature combustion test environment. The mounting top plate 3 is fixedly connected to the top of the multiple support arms 2. A reinforcing rib structure is set in the middle of the top plate to bear the repeated movement load of the drive device 4. The drive device 4 is installed on the top of the mounting top plate 3 and is fixedly connected to the shock-absorbing pad by bolts, which effectively reduces the vibration impact generated during the operation of the device, improves the transmission stability and equipment service life. The drive device 4 is a cylinder.

[0026] One end of multiple connectors 5 is installed at the output end of the drive device 4. Multiple combustion bases 6 are slidably attached to the top of the operating table 1 in a circumferential array. One end of the combustion base 6 is fixedly connected to a sealing side plate 61. The other end of the connectors 5 is provided with multiple connection points, which are respectively connected to one side of the multiple sealing side plates 61.

[0027] It should be noted that one end of the multiple connectors 5 described in this embodiment is installed at the output end of the drive device 4. The connectors 5 are rigid structures of fixed length to ensure consistent transmission force and stable transmission path during the drive process. Multiple combustion bases 6 are slidably attached to the top of the operating table 1 in a circumferential array. With the help of guide grooves and limiting mechanisms, they are ensured to move accurately along the predetermined track under the drive traction. One end of the combustion base 6 is fixedly connected to a sealing side plate 61. The other end of the connector 5 is provided with multiple connection points and is connected to one side of multiple sealing side plates 61 through a hinge mechanism. During the drive process, the angle can be adjusted to adapt to the sliding path of the base, thereby improving the coordination and reliability of the system transmission.

[0028] Multiple combustion detection components 7 are installed in a circular array on the top of the operating table 1, and the multiple combustion detection components 7 and multiple combustion bases 6 are located on the same track.

[0029] It should be noted that the multiple combustion detection components 7 described in this embodiment are installed in a circular array on the top of the operating table 1, with each detection component arranged at equal intervals to ensure the comparability of the calorific value detection results and the balance of data distribution. The multiple combustion detection components 7 and multiple combustion bases 6 are located on the same track, which is equipped with a precision guide structure and a damping buffer device to improve the positioning accuracy and stability during the movement of the base.

[0030] Specifically, the drive device 4 is a cylinder structure. The output of the drive cylinder drives multiple connecting parts 5 to move downwards synchronously. One end of each connecting part 5 is fixed to the drive device 4, and the other end is hinged to the sealing side plates 61 on multiple combustion bases 6. Under drive, each connecting part 5 presses down along a predetermined path, causing the combustion base 6 to slide precisely along the guide groove on the top of the operating table 1. Finally, the combustion base 6 is positioned within the combustion chamber 71 corresponding to the combustion detection component 7, which is on the same track. During this process, the support arm 2 and the mounting top plate 3 provide stable support and load-bearing capacity, ensuring the reliability of the drive structure. During the detection process, each combustion detection component 7 is equidistantly arranged and operates independently. The internal temperature sensor 74 can monitor the real-time changes in water temperature in the detection chamber 73 caused by the heat generated by combustion, thus determining the calorific value of different coal samples. This device, through its circular array structure design, enables the synchronous transport, positioning, and detection of multiple samples, significantly improving detection efficiency and overcoming the problems of traditional equipment that can only detect one sample at a time and has a cumbersome process. At the same time, through precision guide grooves and damping structures, it improves the stability of sample transmission and the repeatability of detection data, effectively solving the technical bottlenecks of insufficient multi-sample detection capability and poor comparability mentioned in the background technology.

[0031] In one embodiment of this utility model, such as Figures 1-4As shown, the connector 5 includes a drive arm 51, a connector 52, a first hinge ear 53, a connecting arm 54, and a second hinge ear 55. One end of the drive arm 51 is fixedly connected to the output end of the drive device 4, and the connector 52 is fixedly connected to the other end of the drive arm 51. Multiple first hinge ears 53 are fixedly connected to the outer wall of the connector 52 in a circumferential array. Multiple second hinge ears 55 are respectively fixedly connected to one side of multiple sealing side plates 61. A connecting arm 54 is provided between the first hinge ears 53 and the second hinge ears 55, and they are connected through the connecting arm 54.

[0032] It should be noted that the drive arm 51 described in this embodiment is made of high-strength heat-resistant material to ensure that it does not deform during long-term operation in high-temperature environments and improves transmission stability. The connector 52 is fixedly connected to the other end of the drive arm 51. Its structure is a tapered reinforced design to distribute the drive load and improve the multi-point hinge accuracy. Multiple first hinge ears 53 are arranged in a circumferential array on the outer wall of the connector 52, and the second hinge ears 55 are fixed on one side of each sealing side plate 61. The two are connected by the connecting arm 54 arranged between them. The connecting arm 54 adopts a universal hinge structure, which can automatically adjust the angle during the drive to adapt to the trajectory of the combustion base 6, ensuring coordinated movement and smooth engagement.

[0033] In one embodiment of this utility model, such as Figures 1-4 As shown, the combustion detection assembly 7 includes a combustion chamber 71, a placement chamber 72, a detection chamber 73, and a temperature sensor 74. Multiple combustion chambers 71 are arranged in a circumferential array on the top of the operating table 1, and multiple combustion chambers 71 and multiple combustion bases 6 are located on the same track. The placement chamber 72 is opened at one end of the combustion chamber 71, and the inner wall of the placement chamber 72 is in contact with the edge of the sealing side plate 61. The detection chamber 73 is opened inside the combustion chamber 71, above the placement chamber 72, and separated by a partition. The temperature sensor 74 is installed on the inner wall of the detection chamber 73.

[0034] Furthermore, such as Figure 1 As shown, the top of the operating table 1 is provided with multiple guide grooves 11 for the combustion base 6 to slide. The combustion chambers 71 are all located at the ends of the guide grooves 11. The side walls of the combustion chambers 71 are equipped with exhaust ports, and the combustion chambers 71 are equipped with water injection holes relative to the top of the detection chamber 73. Sealing plugs are installed on the water injection holes.

[0035] It should be noted that the combustion chamber 71 described in this embodiment is made of high-temperature corrosion-resistant material and has a double-layer insulation structure to reduce heat loss and improve the accuracy of calorific value detection. A flexible sealing ring is provided at the edge of the placement chamber 72 and the sealing side plate 61 to ensure that the gas does not leak during combustion and to enhance combustion efficiency. The detection chamber 73 and the placement chamber 72 are separated by a thermal insulation plate to avoid high temperature directly affecting the sensor reading. The temperature sensor 74 is a high-sensitivity thermocouple and is connected to the data acquisition system through a digital interface to realize real-time and accurate monitoring of temperature changes. The exhaust port is equipped with a high-temperature filter to prevent particulate discharge. The water injection hole and sealing plug are made of high-temperature resistant silicone material, which facilitates water addition and maintenance while ensuring the safety and stability of the detection environment.

[0036] Specifically, the drive device 4 controls multiple connectors 5 to drive the combustion base 6 to slide into the combustion chamber 71 corresponding to the combustion detection component 7. The coal sample is sent to the placement chamber 72 located at the bottom of the combustion chamber 71 along with the combustion base 6 for combustion. The heat is transferred to the detection chamber 73 located above through the partition. The water medium in the chamber changes temperature after being heated. The temperature sensor 74 monitors the temperature change in real time and feeds it back to the data acquisition system. Finally, the calorific value of the sample can be measured based on this. This device adopts a circular array structure layout, combined with guide groove 11 and precision sliding system, which can realize the synchronous and accurate delivery of multiple samples into combustion chamber 71. It effectively solves the problems of low detection efficiency and inability to perform parallel detection of multiple samples in traditional devices. Combustion chamber 71 adopts a double-layer heat preservation structure and corrosion-resistant materials, which improves measurement stability and device life. The setting of exhaust port and high temperature filter ensures a clean and safe testing environment. A flexible sealing ring is provided between placement chamber 72 and sealing side plate 61, which effectively improves combustion sealing and energy utilization efficiency. At the same time, thermal isolation plate prevents thermal interference from affecting temperature acquisition. Temperature sensor 74 uses a high-sensitivity thermocouple and is equipped with a digital output interface to ensure the synchronization and accuracy of multi-channel data. Thus, it comprehensively overcomes the technical problems of low single-sample detection efficiency, poor data comparability and large measurement interference in the existing technology.

[0037] In summary, the rapid detection device for the calorific value of power coal in this embodiment utilizes the hinge structure between the end of the connector 5 and the sealing side plate 61 on the combustion base 6 to achieve precise sliding positioning of the combustion base 6 within the guide groove 11 at the top of the operating table 1. This allows the coal sample to be sequentially fed into the combustion chamber 71 of the combustion detection assembly 7 located on the same track. After the coal sample is burned in the placement chamber 72 of the combustion base 6, its heat is transferred to the detection chamber 73 above through the partition. The temperature sensor 74 collects the water temperature change in the detection chamber 73 in real time, and the calorific value is calculated after data processing by the data system. The device adopts a circumferential array structure, with each detection channel arranged equidistantly and driven synchronously. Combined with a precision guide rail system and damping structure, it significantly improves the stability of sample transmission, the batch capacity of detection, and the comparability of results. It overcomes the problems of traditional technologies, such as the inability to simultaneously detect multiple samples, low efficiency, and poor data comparability, achieving rapid, accurate, and efficient detection of multiple samples.

[0038] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A rapid detection device for the calorific value of coal for power generation, characterized in that, It includes an operating platform (1), a support arm (2), an assembly top plate (3), a drive unit (4), a connector (5), a combustion base (6), and a combustion detection assembly (7), wherein, Multiple support arms (2) are fixedly connected to the top of the operating table (1) in a circular array, the assembly top plate (3) is fixedly connected to the top of the multiple support arms (2), and the drive device (4) is installed on the top of the assembly top plate (3). One end of each of the connectors (5) is installed at the output end of the drive device (4), and the multiple combustion bases (6) are slidably attached to the top of the operating table (1) in a circumferential array. One end of each combustion base (6) is fixedly connected to a sealing side plate (61), and the other end of each connector (5) is provided with multiple connection points, which are respectively connected to one side of the multiple sealing side plates (61). Multiple combustion detection components (7) are arranged in a circular array on the top of the operating table (1), and the multiple combustion detection components (7) and multiple combustion bases (6) are respectively located on the same track.

2. The rapid detection device for the calorific value of coal for power generation according to claim 1, characterized in that, The connector (5) includes a drive arm (51), a connector (52), a first hinge (53), a connecting arm (54), and a second hinge (55), wherein, One end of the drive arm (51) is fixedly connected to the output end of the drive device (4), the connector (52) is fixedly connected to the other end of the drive arm (51), a plurality of first hinge ears (53) are fixedly connected to the outer wall of the connector (52) in a circumferential array, and a plurality of second hinge ears (55) are fixedly connected to one side of a plurality of sealing side plates (61). The connecting arm (54) is provided between the first hinge ear (53) and the second hinge ear (55), and they are connected by the connecting arm (54).

3. The device for rapid detection of the heat generation of power coal according to claim 2, characterized in that, The combustion detection assembly (7) includes a combustion chamber (71), a placement chamber (72), a detection chamber (73), and a temperature sensor (74), wherein, Multiple combustion chambers (71) are arranged in a circular array on the top of the operating table (1), and multiple combustion chambers (71) and multiple combustion bases (6) are located on the same track respectively; The placement compartment (72) is located at one end of the combustion chamber (71), and the inner wall of the placement compartment (72) is in contact with the edge of the sealing side plate (61); The detection chamber (73) is located inside the combustion chamber (71) and above the placement chamber (72), and is separated by a partition. The temperature sensor (74) is installed on the inner wall of the detection chamber (73).

4. The device for rapidly measuring the calorific power of steam coal according to claim 3, characterized in that, The top of the operating table (1) is provided with multiple guide grooves (11) for sliding of the combustion base (6), and the combustion chambers (71) are all located at the ends of the guide grooves (11).

5. The device for rapid detection of the heat generation of power coal according to claim 3, characterized in that, The combustion chamber (71) has an exhaust port installed on its side wall, and the combustion chamber (71) has a water injection hole installed on its top relative to the detection chamber (73), and a sealing plug is installed on the water injection hole.

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