Preheating device for detecting volatile organic compounds

Abstract

The utility model relates to the technical field of volatile organic compound detection, in particular to a preheating device for volatile organic compound detection, which comprises a connecting frame, a tank body, a feeding pipe and a discharging pipe, the tank body is arranged in the connecting frame, the feeding pipe is arranged on the upper surface of the tank body, the discharging pipe is fixedly connected with the lower surface of the tank body, and the discharging pipe is arranged on the lower surface of the tank body. And a heating assembly is arranged in the connecting frame. Through the arrangement of the heating assembly and the auxiliary assembly, the interior of the tank body is effectively heated, the effect of preheating the interior of the tank body is achieved, and the problems that when equipment is used, a heating rod is generally placed in the tank body for heating in an existing device, materials are prone to being adsorbed to the surface of the heating rod, and the heating rod is prone to being heated are solved. And the heating assembly can integrally heat the tank body, and the auxiliary assembly can move a heating pipe up and down to adjust a heating area in the tank body, so that the practicability of the equipment is improved.

Description

Technical Field

[0001] This utility model relates to the field of volatile organic compound (VOC) detection technology, and in particular to a preheating device for VOC detection. Background Technology

[0002] Volatile organic compounds (VOCs) are important precursors to secondary pollutants such as fine particulate matter and ozone, which in turn cause atmospheric environmental problems such as haze and photochemical smog. Therefore, it is necessary to regularly monitor the emissions of VOCs to prevent them from polluting the environment.

[0003] Existing technologies, such as patent CN217542597U, disclose a preheating device for detecting volatile organic compounds (VOCs). This patent uses a gas storage tank with an inlet valve and an outlet valve at the top. A heating structure is mounted on the outlet valve, including an outlet pipe. The outlet pipe is fixedly connected to the outlet valve, and a sealing box is threaded onto the outlet pipe. A heating box is detachably connected inside the sealing box, and the heating box has a through hole. A heating rod is installed inside the through hole, and a copper pipe is fixedly connected inside the heating box, passing through the through hole. A power supply is detachably connected to the heating box. This invention solves the problems of existing devices being too cumbersome for external heating, and the uneven heating of VOCs caused by ordinary heating pipes, thus affecting the efficiency and quality of VOC detection.

[0004] In daily operation, during the preheating process of materials, the existing equipment generally places the heating rod inside the tank for heating, which easily causes the material to be adsorbed onto the surface of the heating rod, resulting in a decrease in the heating temperature of the heating rod. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies that make it difficult to uniformly heat the materials inside the tank, and to propose a preheating device for detecting volatile organic compounds.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a preheating device for detecting volatile organic compounds, comprising a connecting frame, a tank, an inlet pipe, and an outlet pipe. The tank is located inside the connecting frame, the inlet pipe is located on the upper surface of the tank, and the outlet pipe is fixedly connected to the lower surface of the tank. A heating assembly is provided inside the connecting frame, the heating assembly comprising a connector and a heating tube. The connector is located inside the connecting frame, and the heating tube is fixedly connected to the end of the connector near the tank. A movable hole is provided on the side of the connecting frame.

[0007] Furthermore, the connector is slidably connected to the inside of the movable hole, and a connector is provided at the connection between the heating tube and the connector. By providing the heating tube, the tank can be heated quickly, reducing the difficulty of uniform heating inside the tank during use, which would otherwise cause the material inside the tank to vaporize unevenly.

[0008] Furthermore, a protective sleeve is fitted onto the surface of the heating tube, which is located on the bottom surface of the tank. The protective sleeve is provided to protect the heating tube.

[0009] Furthermore, the connector frame is internally equipped with an auxiliary component, which includes a threaded rod and a nut. The nut is disposed on the upper surface of the connector, and the threaded rod is slidably connected inside the connector. The nut is threadedly connected to the surface of the threaded rod. A rotating groove is formed at the bottom of the moving hole. One end of the threaded rod is disposed on the inner wall of the rotating groove, and a rotating block is fixedly connected to the lower end of the threaded rod. The rotating block is rotatably connected to the inner wall of the rotating groove. By setting the threaded rod, the connector can be moved, reducing the difficulty of moving the connector during use.

[0010] Furthermore, a first rotating wheel is fixedly connected to the upper end of the threaded rod. The first rotating wheel is located inside the connecting frame and rotates to facilitate the rotation of the threaded rod.

[0011] Furthermore, a servo motor is fixedly connected to the side of the connecting frame, and a second wheel is fixedly connected to the output end of the servo motor. The first wheel and the second wheel are connected by a belt, and the belt allows the first wheel and the second wheel to rotate together.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] In this invention, during use, the user feeds material into the tank through the inlet pipe, where it is preheated, and then discharged through the outlet pipe. The user activates the connector to heat the heating element. After heating, the servo motor is activated, driving the second rotating wheel to rotate. This rotation drives the belt, which in turn rotates the first rotating wheel, which in turn rotates the threaded rod. The rotating threaded rod then moves the nut, causing the connector to move up and down within the moving hole. This movement of the connector causes the heating element to move up and down, evenly heating the lower end of the tank. By incorporating heating and auxiliary components, the internal structure of the tank is effectively heated, effectively preheating the tank. This reduces the risk of material adhering to the surface of the heating element, which is common in existing equipment where it is placed inside the tank, leading to a decrease in heating temperature. The heating component heats the entire tank, while the auxiliary component allows for vertical movement of the heating element to adjust the heating area within the tank, improving the equipment's practicality. Attached Figure Description

[0014] Figure 1 This utility model provides a three-dimensional structural schematic diagram of a preheating device for detecting volatile organic compounds;

[0015] Figure 2 This utility model provides a side view of a preheating device for detecting volatile organic compounds.

[0016] Figure 3 This utility model provides a partial structural schematic diagram of a preheating device for detecting volatile organic compounds;

[0017] Figure 4 This invention provides a preheating device for detecting volatile organic compounds. Figure 3 Schematic diagram of the structure at point A in the middle;

[0018] Figure 5 This utility model provides a schematic diagram of the auxiliary component structure of a preheating device for detecting volatile organic compounds;

[0019] Figure 6 This invention provides a preheating device for detecting volatile organic compounds. Figure 5 Schematic diagram of the structure at point B;

[0020] Figure 7 This invention provides a preheating device for detecting volatile organic compounds. Figure 5 Schematic diagram of the structure at point C.

[0021] Legend: 1. Connecting frame; 2. Tank body; 3. Inlet pipe; 4. Outlet pipe; 5. Heating component; 51. Protective sleeve; 52. Heating tube; 53. Connector; 54. Connector; 55. Moving hole; 6. Auxiliary component; 61. Threaded rod; 62. Nut; 63. Rotary groove; 64. Rotary block; 65. First rotating wheel; 66. Second rotating wheel; 67. Belt; 68. Servo motor. Detailed Implementation

[0022] Please see Figures 1-7 This utility model provides a technical solution: a preheating device for detecting volatile organic compounds, including a connecting frame 1, a tank 2, an inlet pipe 3 and an outlet pipe 4. The tank 2 is located inside the connecting frame 1, the inlet pipe 3 is located on the upper surface of the tank 2, and the outlet pipe 4 is fixedly connected to the lower surface of the tank 2.

[0023] The specific settings and functions of its heating component 5 and auxiliary component 6 will be discussed below.

[0024] In this embodiment: a heating component 5 is provided inside the connecting frame 1. The heating component 5 includes a connector 54 and a heating tube 52. The connector 54 is located inside the connecting frame 1. The heating tube 52 is fixedly connected to the end of the connector 54 near the tank 2. A moving hole 55 is provided on the side of the connecting frame 1.

[0025] Specifically, the connector 54 is internally slidably connected to the moving hole 55, and a connector head 53 is provided at the connection between the heating tube 52 and the connector 54.

[0026] In this embodiment: by setting the heating tube 52, the tank 2 can be heated quickly, which reduces the difficulty of uniform heating inside the tank 2 during use, thus preventing the material inside the tank 2 from being uniformly vaporized.

[0027] Specifically, a protective sleeve 51 is fitted onto the surface of the heating tube 52. The heating tube 52 is fitted onto the bottom surface of the tank body 2. The protective sleeve 51 is provided to protect the heating tube 52.

[0028] In this embodiment: the connecting frame 1 is provided with an auxiliary component 6, which includes a threaded rod 61 and a nut 62. The nut 62 is disposed on the upper surface of the connector 54. The threaded rod 61 is slidably connected inside the connector 54. The nut 62 is threadedly connected to the surface of the threaded rod 61. A rotating groove 63 is provided at the bottom of the moving hole 55. One end of the threaded rod 61 is disposed on the inner wall of the rotating groove 63. A rotating block 64 is fixedly connected to the lower end of the threaded rod 61. The rotating block 64 is rotatably connected to the inner wall of the rotating groove 63.

[0029] In this embodiment, by providing the threaded rod 61, the connector 54 can be moved, reducing the difficulty of moving the connector 54 during use.

[0030] Specifically, a first rotating wheel 65 is fixedly connected to the upper end of the threaded rod 61. The first rotating wheel 65 is located inside the connecting frame 1 and is rotatably arranged. The first rotating wheel 65 is set to facilitate the rotation of the threaded rod 61.

[0031] Specifically, a servo motor 68 is fixedly connected to the side of the connecting frame 1, and a second rotating wheel 66 is fixedly connected to the output end of the servo motor 68. The first rotating wheel 65 and the second rotating wheel 66 are connected by a belt 67. The belt 67 can rotate the first rotating wheel 65 and the second rotating wheel 66 together.

[0032] Working principle: When using the equipment, the user puts the material into the tank 2 through the feed pipe 3, where it is preheated and discharged through the discharge pipe 4. During operation, the user activates the connector 54 to heat the heating element 52. After the heating element 52 is heated, the user starts the servo motor 68, which drives the second rotating wheel 66 to rotate. The rotation of the second rotating wheel 66 then drives the belt 67 to rotate, which in turn rotates the first rotating wheel 65, causing the threaded rod 61 to rotate. As the threaded rod 61 rotates, it moves the nut 62. When the nut 62 moves, it causes the connector 54 to move within the moving hole 55. When the connector 54 moves up and down, it drives the heating tube 52 to move up and down to evenly heat the lower end of the tank 2. By setting the heating component 5 and the auxiliary component 6, the inside of the tank 2 is effectively heated, which plays a role in preheating the inside of the tank 2. This reduces the risk of material adhering to the surface of the heating rod, which is common in existing equipment where the heating rod is placed inside the tank 2, causing the heating rod temperature to drop. The heating component 5 can heat the entire tank 2, and the auxiliary component 6 can move the heating tube 52 up and down to adjust the heating area inside the tank 2, thus improving the practicality of the equipment.

Claims

1. A preheating device for detecting volatile organic compounds, comprising a connecting frame (1), a tank (2), an inlet pipe (3), and an outlet pipe (4), characterized in that: The tank (2) is located inside the connecting frame (1), the feed pipe (3) is located on the upper surface of the tank (2), the discharge pipe (4) is fixedly connected to the lower surface of the tank (2), the connecting frame (1) is provided with a heating component (5), the heating component (5) includes a connector (54) and a heating tube (52), the connector (54) is located inside the connecting frame (1), the heating tube (52) is fixedly connected to the end of the connector (54) near the tank (2), and the connecting frame (1) has a moving hole (55) on its side.

2. The preheating device for detecting volatile organic compounds according to claim 1, characterized in that: The connector (54) is slidably connected to the inside of the moving hole (55), and a connector head (53) is provided at the connection between the heating tube (52) and the connector (54).

3. The preheating device for detecting volatile organic compounds according to claim 2, characterized in that: The surface of the heating tube (52) is covered with a protective sleeve (51), and the heating tube (52) is located on the bottom surface of the tank (2).

4. The preheating device for detecting volatile organic compounds according to claim 1, characterized in that: An auxiliary component (6) is provided inside the connecting frame (1). The auxiliary component (6) includes a threaded rod (61) and a nut (62). The nut (62) is located on the upper surface of the connector (54). The threaded rod (61) is slidably connected inside the connector (54). The nut (62) is threadedly connected to the surface of the threaded rod (61). A rotating groove (63) is provided at the bottom of the moving hole (55). One end of the threaded rod (61) is located on the inner wall of the rotating groove (63). A rotating block (64) is fixedly connected to the lower end of the threaded rod (61). The rotating block (64) is rotatably connected to the inner wall of the rotating groove (63).

5. The preheating device for detecting volatile organic compounds according to claim 4, characterized in that: The upper end of the threaded rod (61) is fixedly connected to a first rotating wheel (65), which is located inside the connecting frame (1) and rotates.

6. The preheating device for detecting volatile organic compounds according to claim 5, characterized in that: A servo motor (68) is fixedly connected to the side of the connecting frame (1), and a second wheel (66) is fixedly connected to the output end of the servo motor (68). The first wheel (65) and the second wheel (66) are connected by a belt (67).

Images