Automatic sampling device for cracking furnace

Abstract

The utility model relates to an automatic sample introduction device for a cracking furnace, which comprises a cracking furnace body and a sample introduction rod assembly, the sample introduction rod assembly is connected with the cracking furnace body through a transmission part, the sample introduction rod assembly comprises a sample introduction rod and a base, the base is provided with a placing groove, one end of the sample introduction rod is arranged in the placing groove, and the other end of the sample introduction rod is connected with the cracking furnace body. An elastic piece is arranged between the sample injection rod and the placement groove, and the base is connected with the transmission piece through a sliding block. The assembly is simple, and the leakproofness of the cracking furnace cannot be reduced due to small gaps or position deviation.

Description

Technical Field

[0001] The utility model relates to the technical field of organic carbon analyzers, in particular to an automatic sample introduction device for a cracking furnace. Background Art

[0002] Solid total organic carbon analyzers are widely used in many fields: (1) Environmental monitoring and assessment: Solid total organic carbon analyzers play a key role in environmental monitoring. They can measure the organic carbon content in solid samples such as soil and sediment, thereby evaluating the degree of environmental pollution and the health of the ecosystem. (2) Soil science: In soil science research, the instrument can be used to measure the organic carbon content in the soil, which helps to understand soil fertility, carbon cycle and the effect of soil remediation. (3) Agricultural field: In the agricultural field, solid total organic carbon analyzers can be used to evaluate soil quality, guide the use of organic fertilizers, and monitor the absorption and utilization of organic carbon by crops, thereby optimizing agricultural production. (4) Geology and geochemistry: In geological and geochemical research, the instrument can be used to analyze the organic carbon content in solid samples such as rocks and minerals, providing important data for research on earth evolution, paleoclimate, etc. (5) Waste treatment and resource utilization: In the process of waste treatment and resource utilization, solid total organic carbon analyzers can be used to monitor the organic carbon content in waste, providing a scientific basis for waste classification, treatment and resource utilization.

[0003] The cracking furnace is an important part of the solid total organic carbon analyzer. However, when using the injection boat for injection, if the cooling time of the injection boat is not enough, the sealing ring of the injection rod and the flip module is prone to accelerated aging due to high temperature, resulting in leakage. Leakage not only affects the accuracy of sample analysis, but also may cause contamination inside the equipment, further shortening the service life of the equipment. At the same time, traditional injection devices have high requirements on workpiece precision and are difficult to assemble. Utility Model Content

[0004] The utility model aims to provide an automatic sample introduction device for a cracking furnace to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An automatic sample introduction device for a cracking furnace comprises a cracking furnace body and a sample introduction rod assembly, wherein the sample introduction rod assembly is connected to the cracking furnace body through a transmission member, the sample introduction rod assembly comprises a sample introduction rod and a base, a placement groove is provided on the base, one end of the sample introduction rod is placed in the placement groove, a sealing elastic member is provided between the sample introduction rod and the placement groove, and the base and the transmission member are connected through a slider.

[0007] In a possible implementation, the elastic member includes a first elastic foam block and a second elastic foam block, wherein the first elastic foam block is placed on a side close to the bottom of the placement groove, and the second elastic foam block is placed on a side of the injection rod away from the bottom of the placement groove.

[0008] Optionally, the accommodating groove is a U-shaped groove, two left-right symmetrical slideways are arranged in the accommodating groove, and a clamping portion matching the slideways is formed on the first elastic foam block or the second elastic foam block.

[0009] Optionally, a fixing block is provided between the first elastic foam block and the second elastic foam block, the fixing block is provided with a mounting hole, and the injection rod is inserted into the mounting hole.

[0010] Preferably, a fixing plate is provided above the second elastic foam block, the second elastic foam block is bonded to the fixing plate, and the fixing plate is detachably connected to the base.

[0011] In a possible implementation manner, the other end of the injection rod is connected to an injection boat.

[0012] In a possible implementation manner, the cracking furnace body is internally provided with a combustion tube, the outer periphery of the combustion tube is provided with a flap module, and the flap module is connected to the transmission member.

[0013] Optionally, the flip cover module includes a flip cover and a base, the flip cover and the base are connected via a rotating shaft, and the base is fixedly connected to the transmission member.

[0014] Compared with the prior art, the utility model has the following advantages:

[0015] 1. Simple assembly, the tightness of the cracking furnace will not be reduced due to small gaps or position deviations;

[0016] 2. Effectively reduce the wear of the injection rod and the sealing ring of the injection boat. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the automatic sample introduction device for cracking furnace of the utility model;

[0018] Figure 2 for Figure 1 Exploded view of the injection rod assembly. DETAILED DESCRIPTION

[0019] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0020] like Figure 1 and 2 As shown, an automatic sample introduction device for a cracking furnace comprises a cracking furnace body 40 and a sample introduction rod assembly 10, wherein the sample introduction rod assembly 10 is connected to the cracking furnace body 40 through a transmission member 20, and the sample introduction rod assembly 10 comprises a sample introduction rod 101 and a base 102, wherein a placement groove 1022 is provided on the base 102, wherein one end of the sample introduction rod is placed in the placement groove 1022, and the other end is used to connect a sample introduction boat 107. An elastic member is provided between the sample introduction rod and the placement groove 1022, and the base 102 is connected to the transmission member 20 through a slider. The elastic member comprises a first elastic foam block 103 and a second elastic foam block, wherein the first elastic foam block 103 is placed near the bottom side of the placement groove 1022, and the second elastic foam block is placed on the bottom side of the sample introduction rod 101 away from the placement groove 1022. That is to say, elastic foam is provided on both the upper and lower sides of the injection rod 101 , and the elastic foam can effectively cushion the injection rod 101 and absorb the vibration and impact generated by the injection rod assembly 10 during operation.

[0021] In order to better exert the shock-absorbing effect of the elastic member, and at the same time enable the injection rod 101 to be more firmly installed on the base 102. The placement groove 1022 preferably adopts a U-shaped groove, and two left-right symmetrical slideways are provided in the placement groove 1022, and a clamping part matching the slideway is formed on the first elastic foam block 103 or the second elastic foam block 104. That is, the first elastic foam block 103 or the second elastic foam block 104 can present a structure similar to a "cross", and the two wings are installed in the slideway. Since the elastic foam itself has extremely strong elasticity, it will not be displaced after being installed in the slideway, so that it can play a good shock-absorbing effect under the premise of limiting the movement of the injection rod to the greatest extent.

[0022] In order to better fix the injection rod 101, a fixing block 105 is provided between the first elastic foam block 103 and the second elastic foam block 104, and a mounting hole 1051 is provided on the fixing block 105, and the injection rod is inserted into the mounting hole 1051. The width of the fixing block 105 matches the width of the aforementioned slideway, that is, the fixing block 105 can be installed in the slideway, and the injection rod will not slide up and down significantly when working.

[0023] A fixing plate 106 is further provided above the second elastic foam block 104. The second elastic foam block 104 is bonded to the fixing plate 106, and the fixing plate 106 is detachably connected to the base 102. Specifically, a first screw hole 1061 is provided on the fixing plate 106, and second screw holes 1022 are provided at corresponding positions on both sides of the upper end of the placement groove 1022 on the base 102. Screws are sequentially passed through the first screw hole 1061 and the second screw hole 1022, and the screws are tightened with nuts to fix the fixing plate 106 to the base 102.

[0024] A combustion tube 401 is built into the cracking furnace body 40, and a flap module is provided on the periphery of the combustion tube 401. The flap module 30 includes a flap 301 and a base 302. The flap 301 and the base 302 are connected via a rotating shaft, and the base 302 is fixedly connected to the transmission member 20. After the sample injection rod delivers the sample injection boat into the cracking furnace, the flap is closed, and then the cracking furnace is started for cracking.

[0025] In order to effectively control the injection speed of the injection rod, a stepper motor is used as the driving device of the utility model, and the stepper motor is connected to the transmission member 20. The stepper motor is a micro motor that converts the electrical pulse signal into an angular displacement to control the rotation of the rotor. It is used as an actuator in the automatic control device. Every time a pulse signal is input, the stepper motor moves forward one step. Using a stepper motor to control the moving speed of the transmission member 20 is a common method in the art, and all existing types of stepper motors can meet the requirements of this application. The specific structure of the transmission member 20 will not affect the implementation of the utility model. It is only necessary that the slider 201 can move axially along the injection rod 101 under the drive of the transmission member 20, and drive the injection rod 101 to transport the injection boat 107 into the combustion tube.

[0026] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "two ends", "left and right", "front and back", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0028] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An automatic sample introduction device for a cracking furnace, comprising a cracking furnace body (40) and a sample introduction rod assembly (10), characterized in that: The injection rod assembly (10) is connected to the cracking furnace body (40) via a transmission member (20). The injection rod assembly (10) comprises an injection rod (101) and a base (102). The base (102) is provided with a placement groove (1022). One end of the injection rod (101) is placed in the placement groove (1022). An elastic member is provided between the injection rod (101) and the placement groove (1022). The base (102) and the transmission member (20) are connected via a slider (201).

2. The automatic sample introduction device for cracking furnace according to claim 1, characterized in that: The elastic member comprises a first elastic foam block (103) and a second elastic foam block, wherein the first elastic foam block (103) is placed on a bottom side close to the placement groove (1022), and the second elastic foam block (104) is placed on a bottom side of the injection rod (101) away from the placement groove (1022).

3. The automatic sample introduction device for cracking furnace according to claim 2, characterized in that: The placement groove (1022) is a U-shaped groove, and two left-right symmetrical slideways are arranged in the placement groove (1022). A clamping portion matching the slideways is formed on the first elastic foam block (103) or the second elastic foam block (104).

4. The automatic sample introduction device for cracking furnace according to claim 2, characterized in that: A fixing block (105) is provided between the first elastic foam block (103) and the second elastic foam block (104), and a mounting hole (1051) is provided on the fixing block (105), and the injection rod (101) is inserted into the mounting hole (1051).

5. The automatic sample introduction device for cracking furnace according to claim 2, characterized in that: A fixing plate is provided above the second elastic foam block (104); the second elastic foam block (104) and the fixing plate (106) are bonded to each other; and the fixing plate (106) and the base (102) are detachably connected.

6. The automatic sample introduction device for cracking furnace according to claim 1, characterized in that: The other end of the injection rod (101) is connected to the injection boat (107).

7. The automatic sample introduction device for cracking furnace according to claim 1, characterized in that: The cracking furnace body (40) has a combustion tube (401) built in it. The outer periphery of the combustion tube (401) is provided with a flip module, and the flip module is connected to the transmission member (20).

8. The automatic sample introduction device for cracking furnace according to claim 7, characterized in that: The flip cover module (30) comprises a flip cover (301) and a base (302); the flip cover (301) and the base (302) are connected via a rotating shaft, and the base (302) is fixedly connected to the transmission member (20).

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