CN212645369U - Three-section furnace combustion device with anti-abrasion structure - Google Patents

Abstract

The application provides a three section stove burner with abrasionproof decreases structure, this three section stove burner with abrasionproof decreases structure includes the base, and a support, heating furnace and tubulose sliding joint, support fixed mounting is on the base, the combustion tube passes through the support and supports and be fixed in on the base, be equipped with the slide opening that supplies the combustion tube to run through to pass on the heating furnace, the combustion tube passes the slide opening, tubulose sliding joint sets up to two, two tubulose sliding joint locate respectively in the slide opening, and each tubulose sliding joint closes on the corresponding port portion setting of slide opening, each tubulose sliding joint overlaps on the outer wall of combustion tube. When the combustion tube passes through the sliding hole, the outer wall of the combustion tube can be supported on the two tubular sliding joints in a sliding mode, friction between the outer wall of the combustion tube and the inner wall of the sliding hole is reduced, the heating furnace can move smoothly and stably along the axial direction of the combustion tube without blockage, abrasion of the combustion tube and the heating furnace is prevented, and maintenance and replacement costs of the heating furnace and the combustion tube are reduced.

Description

Three-section furnace combustion device with anti-abrasion structure

Technical Field

The application belongs to the technical field of hydrocarbon analysis and detection equipment, and more specifically relates to a three-section furnace combustion device with an anti-abrasion structure.

Background

The hydrocarbon analyzer is mainly used for measuring the contents of carbon and hydrogen in coal and other organic matters, wherein the three-stage furnace type hydrocarbon analyzer is suitable for measuring the content of the hydrocarbon in a large range and is widely applied to measuring and analyzing the contents of the carbon and the hydrogen in a laboratory. The three-section furnace type hydrocarbon analyzer consists of a purification system, a three-section furnace combustion device and an absorption system, wherein the three-section furnace combustion device comprises a combustion pipe and a three-section heating furnace for heating the combustion pipe at high temperature. When the hydrocarbon content of a sample is measured by adopting a three-stage furnace combustion device, a furnace body is used for heating a combustion pipe at high temperature, oxygen flow is introduced into the combustion pipe, a certain amount of sample is combusted in the combustion pipe, carbon dioxide and water generated by reaction are respectively absorbed by a carbon dioxide absorbent and a water absorbent, and then the hydrocarbon content in the sample is respectively calculated by the increment of the carbon dioxide absorbent and the water absorbent.

In the current three-stage furnace combustion device, a combustion tube is usually fixedly arranged on a base, a heating furnace is sleeved outside the combustion tube in a sliding manner, and a sample in the combustion tube is heated by moving the heating furnace along the axial direction of the combustion tube, so that the sample in the combustion tube burns carbon dioxide and water. After the combustion of the sample in the combustion tube is completed, the heating furnace is moved to the initial position. However, in the process of moving the heating furnace, large friction exists between the heating furnace and the combustion tube, so that the relative movement between the heating furnace and the combustion tube is easy to cause blockage, the normal use of the combustion device of the three-section furnace is influenced, meanwhile, the combustion tube and the heating furnace are abraded, and the service life of the combustion device of the three-section furnace is shortened.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the application is to provide a three-section stove burner with anti-abrasion structure to there is great friction between the heating furnace and the combustion tube of the three-section stove burner who exists among the solution prior art, leads to the relative movement between heating furnace and the combustion tube to appear blocking easily, and causes the technical problem of wearing and tearing to combustion tube and heating furnace.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: there is provided a three-stage furnace combustion apparatus having an abrasion prevention structure, comprising:

a base;

the combustion tube is used for placing a sample;

the bracket is fixedly arranged on the base and used for supporting and fixing the combustion tube on the base;

the heating furnace is used for heating and burning the sample in the combustion tube so as to enable the carbon element and the hydrogen element in the sample to respectively react to generate carbon dioxide and water; the heating furnace is provided with a sliding hole for the combustion tube to penetrate through, and the combustion tube penetrates through the sliding hole; and

the tubular sliding joints are used for slidably supporting the combustion tube so that the heating furnace can move along the axial direction of the combustion tube, the number of the tubular sliding joints is two, the two tubular sliding joints are respectively arranged in the sliding hole, each tubular sliding joint is arranged close to the corresponding port part of the sliding hole, and each tubular sliding joint is sleeved on the outer wall of the combustion tube.

Optionally, the tubular sliding joint comprises a tubular cage, a plurality of first balls and a plurality of second balls for rolling and supporting the first balls, first ball grooves for rolling and mounting the first balls are concavely arranged on the inner wall of the tubular cage, and the first ball grooves are annularly arranged by taking the axis of the tubular cage as a symmetric ring so as to form an annular array of ball groove units on the inner wall of the tubular cage; each first ball is arranged in the corresponding first ball groove in a rolling mode, a second ball groove for the second ball to be arranged in the rolling mode is formed in the inner wall of each first ball groove in a concave mode, each second ball is arranged in the corresponding second ball groove in the rolling mode, and the first balls and the corresponding second balls form spherical contact.

Optionally, a plurality of annular array-shaped ball groove units are arranged on the inner wall of the tubular retainer, the plurality of annular array-shaped ball groove units are arranged at intervals along the axial direction of the tubular retainer, and the first balls are arranged in the first ball grooves of the annular array-shaped ball groove units in a rolling manner.

Optionally, the distance between two adjacent ball groove units in the annular array shape is equal.

Optionally, a plurality of second ball grooves for rolling the second balls are formed in the inner wall of each first ball groove, and the second balls are rolled in the second ball grooves.

Optionally, the first ball bearing has a ball diameter 3 to 5 times the ball diameter of the second ball bearing.

Optionally, the number of the combustion pipes is multiple, the multiple combustion pipes are arranged in parallel and at intervals, sliding holes for the combustion pipes to penetrate through are respectively arranged on the heating furnace, each sliding joint is arranged in the corresponding sliding hole, and the heating furnace is slidably supported on the corresponding combustion pipe through the corresponding sliding joint.

Optionally, the three-section furnace combustion apparatus further comprises a sliding table for supporting the heating furnace and a first linear slide rail mechanism for guiding the sliding table to move, the first linear slide rail mechanism comprises a first linear guide rail fixedly mounted on the base and a first sliding block mounted on the first linear guide rail, the first linear guide rail is arranged along the axial extension of the combustion tube, the bottom of the sliding table is connected with the first sliding block, and the top of the sliding table is connected with the heating furnace.

Optionally, three section stove burner with abrasionproof decreases structure still includes that both ends support respectively and are fixed in correspondingly crossbeam and guide on the support the second linear slide rail mechanism that the heating furnace removed, second linear slide rail mechanism including fixed mounting in second linear guide on the crossbeam with install in second slider on the second linear guide, the second linear guide is followed the setting is extended to the burning pipe axial, the heating furnace with the second slider links to each other.

Optionally, the heating furnace is an electric ceramic furnace.

Compared with the prior art, one or more technical solutions in the embodiments of the present application have at least one of the following technical effects:

this application has three section stove burner of abrasionproof decreases structure, through set up two tubulose sliding joint in the slide opening at the heating furnace, and be close to the corresponding port portion setting of slide opening respectively with two tubulose sliding joint, then when the slide opening is passed to the combustion tube, can make the outer wall of combustion tube slide and support on two tubulose sliding joint, the outer wall that makes the combustion tube can not direct contact with the inner wall of slide opening, reduce the friction between the outer wall of combustion tube and the inner wall of the slide opening of heating furnace, make the heating furnace can take place smoothly along the axial of combustion tube, remove steadily and can not appear blocking, thereby can be quick, adjust the heating position of heating furnace to the combustion tube steadily. In addition, the outer wall of the combustion tube is supported in a sliding mode through the two tubular sliding connectors, the contact area between the outer wall of the combustion tube and the inner wall of the sliding hole is reduced, the combustion tube and the heating furnace can be prevented from being abraded, the maintenance and replacement cost of the heating furnace and the combustion tube is reduced, and the service life of the heating furnace is prolonged.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of a three-furnace type hydrocarbon analyzer provided in an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a three-furnace combustion apparatus provided in an embodiment of the present application;

FIG. 3 is an enlarged, fragmentary, schematic view of FIG. 2;

FIG. 4 is a schematic cross-sectional view taken along line A-A of FIG. 3;

FIG. 5 is an enlarged, fragmentary, schematic view of FIG. 4;

FIG. 6 is an enlarged partial schematic view of FIG. 5;

FIG. 7 is a schematic cross-sectional view taken along line B-B of FIG. 3;

FIG. 8 is an enlarged, fragmentary, schematic view of FIG. 7;

FIG. 9 is a first schematic perspective view of a furnace moving mechanism according to an embodiment of the present disclosure;

fig. 10 is a schematic perspective view of a second furnace moving mechanism according to an embodiment of the present application;

FIG. 11 is a schematic top view of a furnace moving mechanism according to an embodiment of the present disclosure;

FIG. 12 is a schematic side view of a furnace moving mechanism according to an embodiment of the present application.

Wherein, in the figures, the respective reference numerals:

100-a combustion device; 101-a base; 102-a combustion tube; 103-a scaffold; 104-a heating furnace; 105-a first furnace body; 106-a second furnace body; 107-third furnace body; 108-a first slide hole;

200-an oxygen supply apparatus; 201-oxygen cylinder; 202-a first pipeline;

300-an absorption system; 301-a water absorption device; 302-a carbon dioxide absorption unit; 303-a second line; 304-a third line; 305-a nitrogen oxide absorption unit; 306-a fourth line;

400-gas drying column; 500-connecting tube; 600-a flow control valve;

700-a furnace moving mechanism; 710-a support plate; 720-sliding table; 730-a linear drive assembly; 731-bearing seat; 732-lead screw; 733-nut; 734-a drive mechanism; 7341-electric machine; 7342-a motor mount; 7343 — a first synchronous wheel; 7344-a second synchronizing wheel; 7345-synchronous belt; 740-a roller assembly; 741-roller shaft; 742-a roller; 743-roller mount; 7431-a receiving groove; 750-a first linear slide rail mechanism; 751-a first linear guide; 752-roller;

800-tubular slip joint; 810-a tubular cage; 811-a first ball groove; 812-a second ball groove; 820-a first ball; 830-a second ball bearing;

900-a cross beam; 910-a second linear slide mechanism; 911-a second linear guide; 912-a second slider; 920-displacement sensor; 921-scale grating; 922-raster reading head.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "connected" or "disposed" to another element, it can be directly on the other element or be indirectly connected to the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.

Referring to fig. 1 to 3 together, a three-stage furnace combustion apparatus with an anti-wear structure according to an embodiment of the present application will now be described. Referring to fig. 1, the three-stage furnace combustion apparatus with an anti-wear structure provided in the embodiment of the present application is suitable for a three-stage furnace type hydrocarbon analyzer, and is used for determining the content of hydrocarbon in a coal sample or other organic matters. Referring to fig. 2 and 3 in combination, the three-stage furnace combustion apparatus 100 with an anti-wear structure according to the embodiment of the present application includes a base 101, a combustion tube 102, a bracket 103, a heating furnace 104, and a tubular sliding joint 800, wherein the bracket 103 is fixedly installed on the base 101, and the combustion tube 102 is supported and fixed on the base 101 through the bracket 103. The heating furnace 104 is provided with a slide hole 108 through which the combustion tube 102 passes, and the combustion tube 102 passes through the slide hole 108. The two tubular sliding joints 800 are respectively arranged in the sliding hole 108, each tubular sliding joint 800 is arranged close to the corresponding port part of the sliding hole 108, each tubular sliding joint 800 is sleeved on the outer wall of the combustion tube 102, and the combustion tube 102 is slidably supported in the sliding hole 108 of the heating furnace 104 through the two tubular sliding joints 800, so that the outer wall of the combustion tube 102 is prevented from directly contacting with the inner wall of the sliding hole 108. When the heating furnace 104 is moved, the outer wall of the combustion tube 102 is slidably supported by the two tubular sliding joints 800, so that the friction between the outer wall of the combustion tube 102 and the inner wall of the sliding hole 108 of the heating furnace 104 is reduced, the heating furnace 104 can be moved smoothly and stably along the axial direction of the combustion tube 102, the relative movement between the heating furnace 104 and the combustion tube 102 is prevented from being jammed, thereby, the heating position of the combustion tube 102 by the heating furnace 104 can be quickly and stably adjusted, the heating furnace 104 is moved to the preset heating position of the combustion tube 102, the heating furnace 104 is used for heating the preset heating position of the combustion tube 102 at a high temperature, and oxygen flow is introduced into the combustion tube 102, so that the purpose of heating and combusting the sample in the combustion tube 102 is achieved, finally, the carbon element and the hydrogen element in the sample are respectively reacted to generate carbon dioxide and water, and the content of carbon and hydrogen in the sample is respectively calculated by the increment of the carbon dioxide absorbent and the water absorbent. Moreover, the outer wall of the combustion tube 102 is slidably supported by the two tubular sliding joints 800, so that the combustion tube 102 and the heating furnace 104 are prevented from being worn, the maintenance and replacement costs of the heating furnace 104 and the combustion tube 102 are reduced, and the service life of the heating furnace 104 is prolonged.

Compared with the prior art, the three-stage furnace combustion device 100 with the anti-wear structure provided by the embodiment of the application has the advantages that the two tubular sliding joints 800 are arranged in the sliding hole 108 of the heating furnace 104, and the two tubular sliding joints 800 are respectively arranged adjacent to the corresponding port parts of the sliding hole 108, so that when the combustion tube 102 passes through the sliding hole 108, the outer wall of the combustion tube 102 can be slidably supported on the two tubular sliding joints 800, the outer wall of the combustion tube 102 cannot be in direct contact with the inner wall of the sliding hole 108, the friction between the outer wall of the combustion tube 102 and the inner wall of the sliding hole 108 of the heating furnace 104 is reduced, the heating furnace 104 can smoothly and stably move along the axial direction of the combustion tube 102 without blockage, and the heating position of the heating furnace 104 on the combustion tube 102 can be quickly and stably adjusted. Moreover, the outer wall of the combustion pipe 102 is slidably supported by the two tubular sliding joints 800, so that the contact area between the outer wall of the combustion pipe 102 and the inner wall of the sliding hole 108 is reduced, the combustion pipe 102 and the heating furnace 104 can be prevented from being worn, the maintenance and replacement costs of the heating furnace 104 and the combustion pipe 102 are reduced, and the service life of the heating furnace 104 is prolonged.

In an embodiment of the present application, referring to fig. 5 and 7 together, the tubular sliding joint 800 includes a tubular cage 810, a plurality of first balls 820, and a plurality of second balls 830 for rolling and supporting the first balls 820, a first ball groove 811 for rolling and mounting each first ball 820 is recessed on an inner wall of the tubular cage 810, and the plurality of first ball grooves 811 are arranged in an annular array with an axis of the tubular cage 810 as a symmetry axis to form an annular array of ball groove units on the inner wall of the tubular cage 810; each first ball 820 is roll-mounted in a corresponding first ball groove 811, a second ball groove 812 in which a second ball 830 is roll-mounted is recessed in an inner wall of each first ball groove 811, each second ball 830 is roll-mounted in a corresponding second ball groove 812, and each first ball 820 and the corresponding second ball 830 form a spherical contact.

In this embodiment, the tubular sliding joint 800 includes a tubular cage 810, a plurality of first balls 820 and a plurality of second balls 830, a plurality of first ball grooves 811 are concavely formed on an inner wall of the tubular cage 810, the plurality of first balls 820 are roll-mounted in the first ball grooves 811 one to one, a second ball groove 812 is concavely formed on an inner wall of each first ball groove 811, the plurality of second balls 830 are roll-mounted in the second ball grooves 812 one to one, and each first ball 820 is in spherical contact with the corresponding second ball 830. When in use, the tubular sliding joint 800 is only needed to be placed in the sliding hole 108 of the heating furnace 104, the outer wall of the tubular holder 810 is connected with the inner wall of the sliding hole 108, the tubular sliding joint 800 is arranged adjacent to the corresponding port part of the sliding hole 108, when the combustion tube 102 passes through the sliding hole 108, the outer wall of the combustion tube 102 is in rolling contact with the first ball grooves 811, and then the outer wall of the combustion tube 102 is slidably supported on the tubular sliding joint 800, so that the outer wall of the combustion tube 102 is not in direct contact with the inner wall of the sliding hole 108, the friction between the outer wall of the combustion tube 102 and the inner wall of the sliding hole 108 of the heating furnace 104 is reduced, and the combustion tube 102 and the heating furnace 104 are prevented from being worn. Moreover, when the first ball 820 rolls, the second ball 830 on the inner wall of the first ball groove 811 can roll and support the first ball 820, so that friction between the first ball 820 and the inner wall of the first ball groove 811 is reduced, and the phenomenon of clamping stagnation of the first ball 820 when the first ball 820 rolls and supports the combustion tube 102 is reduced, so that the first ball 820 rolls more stably, abrasion between the first ball 820 and the combustion tube 102 is further reduced, and noise generated when the heating furnace 104 is moved is reduced. In addition, the plurality of first ball grooves 811 are arranged in an annular array with the axis of the tubular holder 810 as a symmetry axis, so as to form an annular array of ball groove units on the inner wall of the tubular holder 810, so that the first balls 820 in the tubular holder 810 have a balanced supporting effect on the combustion tube 102, and the stability of the tubular sliding joint 800 in rolling and supporting the combustion tube 102 is improved. It will be appreciated that the tubular slip joint 800 in this embodiment may also be replaced with a linear bearing. Since the structure and operation principle of the linear bearing are well known to those skilled in the art, they are not described herein in detail.

In an embodiment of the present application, referring to fig. 5 and fig. 7, a plurality of ball groove units in an annular array are disposed on an inner wall of the tubular holder 810, the plurality of ball groove units in an annular array are spaced apart from each other in an axial direction of the tubular holder 810, and a first ball 820 is mounted in the first ball groove 811 of each ball groove unit in an annular array in a rolling manner.

In this embodiment, a plurality of ball groove units in an annular array shape are disposed on the inner wall of the tubular cage 810 to increase the contact area between the first balls 820 of the tubular sliding joint 800 and the outer wall of the combustion pipe 102, and to enhance the stability of the tubular sliding joint 800 in rolling support of the combustion pipe 102. Moreover, the plurality of annular array-shaped ball groove units are arranged at intervals along the axial direction of the tubular retainer 810, and the first balls 820 in the plurality of annular array-shaped ball groove units can support the combustion tube 102, so that the combustion tube 102 can be stressed uniformly, and the stability is enhanced.

In an embodiment of the present application, referring to fig. 7, the distance between two adjacent ball groove units in the annular array is equal. In this embodiment, the plurality of annularly arrayed ball groove units are arranged at intervals along the axial direction of the tubular holder 810, that is, the distance between two adjacent annularly arrayed ball groove units is equal, and the first balls 820 in the plurality of annularly arrayed ball groove units support the combustion tube 102, so that the combustion tube 102 can be stressed in a balanced manner, and the stability is further enhanced.

In an embodiment of the present application, referring to fig. 6 and 8, a plurality of second ball grooves 812 for rolling the second balls 830 are disposed on an inner wall of each first ball groove 811, and the second balls 830 are rolling-mounted in each second ball groove 812. In this embodiment, a plurality of second ball grooves 812 are formed on an inner wall of each first ball groove 811, and a second ball 830 is mounted in each second ball groove 812 in a rolling manner, so that the plurality of second balls 830 form a spherical contact with the first ball 820 at the same time, thereby enhancing the rolling stability of the first ball 820.

In one embodiment of the present application, referring to fig. 6 and 8, the first ball 820 has a ball diameter 3 to 5 times larger than that of the second ball 830. In this embodiment, setting the spherical diameter of the first ball 820 to be 3 to 5 times the spherical diameter of the second ball 830 enables the plurality of second balls 830 to form a good support for the first ball 820, which is beneficial to enhancing the rolling stability of the first ball 820.

In an embodiment of the present application, referring to fig. 3 to 5, a plurality of combustion pipes 102 are provided, the plurality of combustion pipes 102 are arranged in parallel and spaced apart, sliding holes 108 for each combustion pipe 102 to pass through are respectively provided on the heating furnace 104, each sliding joint is provided in the corresponding sliding hole 108, and the heating furnace 104 is slidably supported on the corresponding combustion pipe 102 through the corresponding sliding joint.

In this embodiment, set up many with burner 102, can make three section stove formula hydrocarbon analysis appearance carry out the hydrocarbon assay to a plurality of samples simultaneously, improve efficiency of software testing, shorten test cycle. Furthermore, the plurality of combustion tubes 102 are arranged in parallel and at intervals, the heating furnace 104 is respectively provided with a sliding hole 108 for each combustion tube 102 to penetrate through, each sliding joint is arranged in the corresponding sliding hole 108, and the heating furnace 104 is slidably supported on the corresponding combustion tube 102 through the corresponding sliding joint, so that the heating furnace 104 can rapidly, stably and smoothly slide on the plurality of combustion tubes 102 arranged in parallel, and further, the heating positions of the heating furnace 104 on the plurality of combustion tubes 102 can be rapidly and stably adjusted, thereby further improving the testing efficiency and shortening the testing period.

In an embodiment of the present application, referring to fig. 3, 10 and 12, the three-stage furnace combustion apparatus 100 with an anti-wear structure further includes a sliding table 720 for supporting the heating furnace 104 and a first linear sliding rail mechanism 750 for guiding the sliding table 720 to move, the first linear sliding rail mechanism 750 includes a first linear guide rail 751 fixedly mounted on the base 101 and a first sliding block 752 mounted on the first linear guide rail 751, the first linear guide rail 751 extends axially along the combustion tube 102, the bottom of the sliding table 720 is connected to the first sliding block 752, and the top of the sliding table 720 is connected to the heating furnace 104.

In this embodiment, a sliding table 720 is provided on the base 101, and the heating furnace 104 is supported and fixed on the sliding table 720, and the sliding table 720 is slidably mounted on the base 101 along the axial direction of the combustion tube 102 by a first linear slide mechanism 750. In this way, when the heating furnace 104 is moved, the first linear slide rail mechanism 750 guides the sliding table 720 to move, so that the stability of the heating furnace 104 during movement is improved.

In an embodiment of the present application, referring to fig. 2 and fig. 3 together, the three-segment furnace combustion apparatus 100 with an anti-wear structure further includes a cross beam 900 having two ends respectively supported and fixed on the corresponding support 103 and a second linear slide rail mechanism 910 for guiding the heating furnace 104 to move, the second linear slide rail mechanism 910 includes a second linear guide rail 911 fixedly mounted on the cross beam 900 and a second slider 912 mounted on the second linear guide rail 911, the second linear guide rail 911 extends axially along the combustion tube 102, and the heating furnace 104 is connected to the second slider 912.

In this embodiment, the three-stage furnace combustion apparatus 100 with an anti-wear structure further includes a cross beam 900 for mounting the second linear sliding rail mechanism 910, and two ends of the cross beam 900 are respectively supported and fixed on the corresponding supports 103. The second linear sliding rail mechanism 910 comprises a second linear guide rail 911 fixedly mounted on the cross beam 900 and a second sliding block 912 mounted on the second linear guide rail 911, the second linear guide rail 911 extends axially along the combustion tube 102, and the heating furnace 104 is connected with the second sliding block 912, so that when the heating furnace 104 is moved, the second linear sliding rail mechanism 910 guides the heating furnace 104 to move axially along the combustion tube 102, and the stability of the heating furnace 104 during moving is better.

In an embodiment of the present application, please refer to fig. 9 and 11 together, the furnace moving mechanism 700 includes a supporting plate 710 fixedly mounted on the base 101, a sliding table 720 slidably disposed on the supporting plate 710, and a linear driving assembly 730 for driving the sliding table 720 to move, the sliding table 720 is connected to the heating furnace 104, and the linear driving assembly 730 is connected to the sliding table 720.

In this embodiment, by adopting the above scheme, the furnace moving mechanism 700 includes the supporting plate 710, the sliding table 720, the linear driving assembly 730 and the roller assembly 740, the supporting plate 710 is fixed on the base 101 of the three-section furnace combustion apparatus 100 having the anti-wear structure, the sliding table 720 is slidably disposed on the supporting plate 710, the sliding table 720 is connected with the heating furnace 104, the linear driving assembly 730 for driving the sliding table 720 to move is mounted on the supporting plate 710, and the roller assembly 740 for rolling and supporting the heating furnace 104 is mounted on the supporting plate 710. When the device is used, the supporting plate 710 is only required to be fixed on the base 101 of the three-section furnace combustion device 100 with the anti-abrasion structure, the heating furnace 104 is supported on the supporting plate 710 in a rolling manner by the roller assemblies 740, the heating furnace 104 is connected with the sliding table 720, the sliding table 720 can be driven to move by the linear driving assembly 730, the heating furnace 104 is driven to move along the axial direction of the combustion tube 102, and therefore automatic furnace moving operation of the heating furnace 104 can be conveniently, quickly and stably realized, and the heating furnace 104 is not required to be moved by manual operation. In addition, in the moving process of the heating furnace 104, the roller assembly 740 plays a role of rolling support for the heating furnace 104, so that friction between the bottom of the heating furnace 104 and the supporting plate 710 can be reduced, and the heating furnace 104 can be moved quickly and stably.

In an embodiment of the present application, referring to fig. 9 and 11 together, the linear driving assembly 730 includes two bearing seats 731 disposed on the supporting plate 710 at intervals along the axial direction of the combustion tube 102, a screw 732 rotatably mounted on the corresponding bearing seats 731 at both ends thereof respectively through bearings (not shown), a nut 733 mounted on the screw 732, and a driving mechanism 734 for driving the screw 732 to rotate, wherein the nut 733 is connected to the sliding table 720.

In this embodiment, by adopting the above scheme, the linear driving assembly 730 includes two bearing seats 731, two bearings, a screw rod 732, a nut 733, and a driving mechanism 734, the two bearing seats 731 are disposed on the supporting plate 710 at intervals along the axial direction of the combustion tube 102, two ends of the screw rod 732 are rotatably mounted on the corresponding bearing seats 731 through bearings, respectively, the nut 733 is mounted on the screw rod 732, and the sliding table 720 is connected to the nut 733. When the device is used, the screw 732 is driven to rotate by the driving mechanism 734, and the nut 733 drives the sliding table 720 to enable the sliding table 720 to drive the heating furnace 104 to move, so that the automatic furnace moving operation of the heating furnace 104 is rapidly and stably realized, and the position of the heating furnace 104 is conveniently and rapidly adjusted according to the test requirement. It is understood that in another embodiment of the present application, the linear driving assembly 730 may further employ one of a hydraulic cylinder, an electric cylinder, a rack and pinion mechanism and a linear motor 7341, and the arrangement may be selected according to the actual use requirement, and is not limited herein.

In an embodiment of the present application, referring to fig. 9 and 12, the driving mechanism 734 includes a motor 7341, a motor frame 7342 fixedly mounting the motor 7341 on the supporting plate 710, a first synchronizing wheel 7343 connected to one end of the lead screw 732, a second synchronizing wheel 7344 connected to an output shaft of the motor 7341, and a synchronizing belt 7345 connecting the first synchronizing wheel 7343 and the second synchronizing wheel 7344.

In this embodiment, by adopting the above scheme, the driving mechanism 734 includes the motor 7341, the motor frame 7342, the first synchronizing wheel 7343, the second synchronizing wheel 7344 and the synchronizing belt 7345, so that the motor 7341 is only required to be fixedly mounted on the supporting plate 710 through the motor frame 7342, the first synchronizing wheel 7343 is mounted at one end of the screw rod 732, the second synchronizing wheel 7344 is connected with the output shaft of the motor 7341 through the coupler, and the synchronizing belt 7345 is connected with the first synchronizing wheel 7343 and the second synchronizing wheel 7344, so that the screw rod 732 can be stably driven to rotate through the synchronizing belt 7345 mechanism driven by the motor 7341, thereby reducing transmission vibration and facilitating to enhance the moving stability of the heating furnace 104. It is understood that in another embodiment of the present application, the driving mechanism 734 may also directly connect one end of the lead screw 732 to the output shaft of the motor 7341 by using a coupling to directly drive the lead screw 732 to rotate by the motor 7341, but its stability is inferior to the above-mentioned stability of driving the lead screw 732 to rotate by the timing belt 7345 mechanism driven by the motor 7341.

In an embodiment of the present application, referring to fig. 12, the furnace moving mechanism 700 for the three-stage furnace combustion apparatus 100 with an anti-wear structure further includes a displacement sensor 920 for measuring displacement information of the sliding table 720 and a controller for controlling the operation of the motor 7341 according to the displacement information measured by the displacement sensor 920, and the displacement sensor 920 and the motor 7341 are respectively electrically connected to the controller.

In this embodiment, by adopting the above scheme, the displacement sensor 920 for measuring the displacement information of the sliding table 720 is provided, so that in the process that the sliding table 720 drives the heating furnace 104 to move, the displacement sensor 920 feeds back the displacement information of the sliding table 720 to the controller in real time, and the controller controls the motor 7341 of the linear driving assembly 730 to operate according to the feedback displacement information measured by the displacement sensor 920, so that the linear driving assembly 730 can accurately control the moving distance and the stop position of the heating furnace 104.

In an embodiment of the present application, referring to fig. 3 and 12, the three-stage furnace combustion apparatus 100 with an anti-wear structure further includes a roller assembly 740 for rolling and supporting the heating furnace 104, so that the roller assembly 740 can roll and support the heating furnace 104 to enhance the stability of the movement of the heating furnace 104.

In an embodiment of the present application, referring to fig. 9 and 11, the roller assembly 740 includes a plurality of roller shafts 741, rollers 742 respectively mounted on the roller shafts 741, and roller mounts 743 supporting the roller shafts 741, wherein the roller mounts 743 are fixedly mounted on the supporting plate 710, and the roller mounts 743 respectively extend along the axial direction of the burner tube 102.

In this embodiment, by adopting the above-mentioned scheme, two or more roller assemblies 740 are disposed on the supporting plate 710, so that the bottom of the heating furnace 104 can be supported by the roller 742 conveying surface formed by the plurality of rollers 742 of the roller assemblies, friction between the heating furnace 104 and the supporting plate 710 is reduced, the heating furnace 104 can be moved on the supporting plate 710 rapidly and stably, and the stability and reliability of the movement of the heating furnace 104 by the furnace moving mechanism 700 are improved.

In one embodiment of the present application, referring to fig. 9 and 11, a plurality of rollers 742 on the same roller mounting seat 743 are disposed at equal intervals along the axial direction of the burner tube 102. In this embodiment, by adopting the above-described configuration, the plurality of rollers 742 are disposed at equal intervals in the axial direction of the burner tube 102 on the same roller mount 743. That is, on the same roller mounting seat 743, the distances between two adjacent rollers 742 are equal, so that the bottom of the heating furnace 104 is stressed evenly, the stability of the roller assembly 740 in supporting the heating furnace 104 in a rolling manner is further enhanced, the heating furnace 104 can move on the supporting plate 710 quickly and stably, and the stability and reliability of the moving mechanism 700 in moving the heating furnace 104 are improved.

In an embodiment of the present application, referring to fig. 9 and 11, the roller mounting seat 743 is recessed with a receiving groove 7431, the roller 742 is mounted in the receiving groove 7431, and the roller 742 protrudes from the receiving groove 7431 for rolling and supporting the heating furnace 104. In this embodiment, by adopting the above scheme, the roller mounting seat 743 is concavely provided with the accommodating groove 7431, and the roller 742 is mounted in the accommodating groove 7431, so that the stability of the roller 742 for supporting the heating furnace 104 in a rolling manner can be enhanced.

In an embodiment of the present application, please refer to fig. 10 together, the displacement sensor 920 is a grating scale sensor, the grating scale sensor includes a scale grating 921 for calibrating a movement position of the sliding table 720 and a grating reading head 922 for matching with the scale grating 921 to collect movement position information of the sliding table 720, the grating reading head 922 is disposed on the sliding table 720, and the scale grating 921 is disposed on a surface of the roller mounting seat 743 facing the grating reading head 922.

In this embodiment, through adopting above-mentioned scheme, the adoption has the precision higher, stability is better, response speed is faster, the grating scale sensor that the interference killing feature is strong, set up grating reading head 922 of grating scale sensor on slip table 720, set up scale grating 921 on roller mounting base 743 of roller assembly 740, the displacement information of slip table 720 is gathered accurately to the grating scale sensor of being convenient for, thereby acquire the displacement information of heating furnace 104, so that the controller can accurate control the displacement distance and the stop position that linear drive subassembly 730 removed heating furnace 104.

In an embodiment of the present application, referring to fig. 10, the furnace moving mechanism 700 further includes a first linear sliding rail mechanism 750 for guiding the sliding table 720 to move, the first linear sliding rail mechanism 750 includes a first linear guiding rail 751 fixedly installed on the supporting plate 710 and a first sliding block 752 installed on the first linear guiding rail 751, the first linear guiding rail 751 extends axially along the combustion tube 102, and the sliding table 720 is connected to the first sliding block 752. In this embodiment, by adopting the above scheme, two first linear sliding rail mechanisms 750 can be installed on the supporting plate 710, and the two first linear sliding rail mechanisms 750 can guide the linear movement of the sliding table 720, so that the stability and reliability of the movement of the furnace moving mechanism 700 to the heating furnace 104 can be enhanced.

Referring to fig. 1, an embodiment of the present application further provides a three-stage furnace type hydrocarbon analyzer, including the combustion apparatus 100 with an anti-wear structure, the oxygen supply apparatus 200 and the absorption system 300 in any of the above embodiments, where the combustion apparatus 100 is configured to combust a sample so that carbon and hydrogen in the sample respectively react to generate carbon dioxide and water, and the combustion apparatus 100 includes a base 101, a plurality of parallel combustion tubes 102 arranged at intervals, a support 103 supporting the combustion tubes 102 on the base 101, and a heating furnace 104 configured to heat the combustion tubes 102. The heating furnace 104 includes a first furnace body 105, a second furnace body 106 and a third furnace body 107, the first furnace body 105 is slidably disposed on the base 101 along the axial direction of the combustion tubes 102, the first furnace body 105 is respectively provided with a first sliding hole 108 for each combustion tube 102 to pass through, and each combustion tube 102 passes through the corresponding first sliding hole 108 so that the first furnace body 105 can move along the axial direction of the combustion tube 102. The second furnace body 106 and the third furnace body 107 are respectively arranged corresponding to the first furnace body 105, and the second furnace body 106 and the third furnace body 107 are respectively supported on the base 101. The oxygen supply apparatus 200 includes an oxygen cylinder 201 for storing oxygen and a plurality of first pipelines 202 for respectively delivering the oxygen in the oxygen cylinder 201 to the plurality of combustion tubes 102, wherein a first end of each first pipeline 202 is communicated with a gas delivery port of the oxygen cylinder 201, and a second end of each first pipeline 202 is communicated with a first end of the corresponding combustion tube 102. The absorption system 300 is used for respectively absorbing water and carbon dioxide generated after the combustion of the samples in the plurality of combustion pipes 102, and the absorption system 300 includes a plurality of water absorption devices 301, a plurality of carbon dioxide absorption devices 302, a second line 303 communicating the plurality of water absorption devices 301 with the second ends of the respective combustion pipes 102, respectively, and a third line 304 communicating the plurality of carbon dioxide absorption devices 302 with the second ends of the respective combustion pipes 102, respectively.

Compared with the prior art, the three-stage furnace type hydrocarbon analyzer provided by the embodiment of the application has the advantages that the combustion device 100 comprises a plurality of combustion tubes 102 which are arranged in parallel and at intervals, the first furnace body 105 of the heating furnace 104 is respectively provided with the first slide holes 108 for the combustion tubes 102 to penetrate through, each combustion tube 102 penetrates through the corresponding first slide hole 108, the first end of each combustion tube 102 is connected with the oxygen supply device, and the second end of each combustion tube 102 is respectively connected with the corresponding water absorption device 301 and the corresponding carbon dioxide absorption device 302 of the absorption system 300. When the three-section furnace type hydrocarbon analyzer is used, the hydrocarbon content of a plurality of samples can be measured by the three-section furnace type hydrocarbon analyzer at the same time, the hydrocarbon content of a plurality of different samples does not need to be measured in sequence, the testing time is shortened, the testing efficiency is improved, and the testing period is shortened. Moreover, the plurality of combustion pipes 102 are arranged in parallel and at intervals, and the first furnace body 105 is provided with first sliding holes 108 through which the combustion pipes 102 penetrate, so that the first furnace body 105 can be arranged on the plurality of combustion pipes 102 in a sliding manner along the axial direction of the combustion pipes 102, the heating position of the first furnace body 105 on the plurality of combustion pipes 102 can be adjusted conveniently, the test efficiency is further improved, and the test period is shortened.

It can be understood that, in another embodiment of the present application, the first furnace body 105, the second furnace body 106 and the third furnace body 107 of the heating furnace 104 are tubular electric ceramic furnaces that convert electric energy into heat energy by using current thermal effect, and have the characteristics of gradual temperature rise, triple thermal equilibrium, no local high temperature, etc., so as to fully combust the sample in the combustion tube 102, which is beneficial to improve the accuracy of the carbon-hydrogen content test in the sample. The combustion pipe 102 is a pipe member made of porcelain, corundum, quartz, or stainless steel having good thermal conductivity, high hardness, and high strength.

In an embodiment of the present application, referring to fig. 2, the second furnace body 106 is slidably disposed on the base 101 along the axial direction of the combustion tubes 102, the second furnace body 106 is respectively provided with second sliding holes for the combustion tubes 102 to pass through, and each combustion tube 102 passes through the corresponding second sliding hole so that the second furnace body 106 can move along the axial direction of the combustion tube 102. In this embodiment, the plurality of combustion pipes 102 are arranged in parallel and at intervals, and the second furnace body 106 is provided with second slide holes for the combustion pipes 102 to pass through respectively, so that the second furnace body 106 can slide on the plurality of combustion pipes 102 arranged in parallel along the axial direction of the combustion pipes 102, the heating positions of the second furnace body 106 on the plurality of combustion pipes 102 are adjusted, the testing efficiency is further improved, and the testing period is shortened.

In an embodiment of the present application, referring to fig. 2, the third furnace body 107 is slidably disposed on the base 101 along the axial direction of the combustion tubes 102, third sliding holes are respectively disposed on the third furnace body 107 for the combustion tubes 102 to pass through, and each combustion tube 102 passes through the corresponding third sliding hole so that the third furnace body 107 can move along the axial direction of the combustion tube 102. In this embodiment, the plurality of combustion pipes 102 are arranged in parallel and at intervals, and the third furnace body 107 is provided with third slide holes through which the respective combustion pipes 102 pass, so that the third furnace body 107 can slide on the plurality of combustion pipes 102 arranged in parallel along the axial direction of the combustion pipes 102, and the heating positions of the third furnace body 107 on the plurality of combustion pipes 102 are adjusted, thereby further improving the testing efficiency and shortening the testing period.

In one embodiment of the present application, referring to fig. 1, each water absorbing device 301 comprises a first U-shaped tube and a water absorbing agent accommodated in the first U-shaped tube, a first end of each second line 303 is communicated with a second end of the corresponding combustion tube 102, and a second end of each second line 303 is communicated with a first port of the corresponding first U-shaped tube. In this embodiment, each water absorbing device 301 comprises a first U-shaped tube, the first port of each first U-shaped tube communicating with the second end of the respective combustion tube 102 via the respective second line 303, and a water absorbing agent contained in the first U-shaped tube. When the water-absorbing agent is used, the preset heating position of each combustion tube 102 is heated at a high temperature through the heating furnace 104, and oxygen flow is introduced into each combustion tube 102 through the oxygen supply device 200, so that the purpose of heating and burning the sample in each combustion tube 102 is achieved, finally, hydrogen elements in the sample respectively react to generate water, and the content of hydrogen in the sample is calculated through the increment of the water-absorbing agent in the corresponding first U-shaped tube. It is to be understood that the water-absorbing agent may be, but is not limited to, anhydrous calcium chloride or anhydrous magnesium perchlorate.

In one embodiment of the present application, referring to fig. 1, each carbon dioxide absorbing device 302 includes a second U-shaped tube and a carbon dioxide absorbent contained in the second U-shaped tube, a first end of each third pipeline 304 is communicated with a second port of the corresponding first U-shaped tube, and a second end of each third pipeline 304 is communicated with a first port of the corresponding second U-shaped tube. In this embodiment, each carbon dioxide absorbing device 302 includes a second U-shaped tube and a carbon dioxide absorbent contained in the second U-shaped tube, and a first port of each second U-shaped tube is communicated with a second port of the corresponding first U-shaped tube (or communicated with a second end of the corresponding combustion tube 102) through a corresponding third line 304. When the device is used, the preset heating position of each combustion tube 102 is heated at a high temperature through the heating furnace 104, and oxygen flow is introduced into each combustion tube 102 through the oxygen supply device 200, so that the purpose of heating and combusting the sample in each combustion tube 102 is achieved, finally, carbon elements in the sample respectively react to generate carbon dioxide, and the content of carbon in the sample is calculated through the increment of the carbon dioxide absorbent in the corresponding second U-shaped tube. It is to be understood that the carbon dioxide absorbent may be, but is not limited to, alkali asbestos or soda lime. To further enhance the absorption effect of carbon dioxide, the front 2/3 portion of the second U-shaped tube for carbon dioxide may be filled with alkali rock wool or soda lime, and the front 1/3 portion of the second U-shaped tube for carbon dioxide may be filled with anhydrous calcium chloride or anhydrous magnesium perchlorate.

In one embodiment of the present application, referring to fig. 1, the absorption system 300 further includes a plurality of nitrogen oxide absorption devices 305 for respectively absorbing nitrogen oxides generated after the combustion of the samples in the plurality of combustion pipes 102, each of the nitrogen oxide absorption devices 305 includes a third U-shaped pipe, a nitrogen oxide absorbent contained in the third U-shaped pipe, and a fourth pipeline 306 for communicating a first port of the third U-shaped pipe with a second port of the corresponding first U-shaped pipe, and a first end of each of the third pipelines 304 is communicated with the second port of the corresponding third U-shaped pipe. In this embodiment, by providing a plurality of nitrogen oxide absorption devices 305, nitrogen oxides generated after the sample in the corresponding combustion tube 102 is combusted are purified and absorbed by each nitrogen oxide absorption device 305, so as to avoid interference of the nitrogen oxides on the determination of the carbon content in the sample, and thus, the accuracy of the determination of the carbon content in the sample can be improved. It is to be understood that the nitrogen oxide absorbent may be, but is not limited to, manganese dioxide. To further enhance the absorption of nitrogen oxides, the first 2/3 portion of the second U-shaped tube for carbon dioxide may be filled with particulate manganese dioxide, and the first 1/3 portion of the second U-shaped tube for carbon dioxide may be filled with anhydrous calcium chloride or anhydrous magnesium perchlorate.

In an embodiment of the present application, referring to fig. 1, the three-stage furnace type hydrocarbon analyzer further includes a furnace moving mechanism 700 for driving the first furnace body 105 to move, the furnace moving mechanism 700 is mounted on the base 101, and an output end of the furnace moving mechanism 700 is connected to the first furnace body 105. In this embodiment, when using, only need move the first furnace body 105 of stove mechanism 700 drive and remove, alright quick, stably adjust the heating position of first furnace body 105 to combustion tube 102, can realize moving the stove operation voluntarily, need not artifical manual operation and remove heating furnace 104, operation control is simple and convenient to improve and adopt three section stove burner 100 to carry out the convenience of the survey of hydrocarbon content, improve efficiency of software testing. As can be appreciated. The three-furnace type hydrocarbon analyzer further comprises a furnace moving mechanism 700 for driving the second furnace body 106 to move and a furnace moving mechanism 700 for driving the third furnace body 107 to move, the heating positions of the second furnace body 106 and the third furnace body 107 to the combustion tube 102 can be quickly and stably adjusted only by driving the second furnace body 106 and the third furnace body 107 to move through the furnace moving mechanism 700, automatic furnace moving operation can be realized, and the heating furnace 104 does not need to be manually moved.

In an embodiment of the present application, referring to fig. 1, the three-stage furnace type hydrocarbon analyzer further includes a gas drying tower 400 for drying oxygen and a connection pipe 500 connecting a gas transmission port of the oxygen cylinder 201 with a gas inlet of the gas drying tower 400, wherein a first end of each first pipeline 202 is communicated with a gas outlet of the gas drying tower 400. In this embodiment, a drying tower is provided, and the flow of oxygen supplied from the oxygen cylinder 201 of the oxygen supply apparatus 200 to each combustion tube 102 is dried by the drying tower, so as to prevent moisture contained in the oxygen from interfering with the measurement of the hydrogen content in the sample, thereby improving the accuracy of the measurement of the hydrogen content in the sample. It is understood that the gas drying tower 400 may be filled with anhydrous calcium chloride or anhydrous magnesium perchlorate to absorb moisture in the oxygen stream. The gas drying tower 400 may also be filled with alkali asbestos or soda lime to purify oxygen.

In an embodiment of the present application, referring to fig. 1, each first pipeline 202 is provided with a flow control valve 600 for detecting and controlling the flow of gas in the first pipeline 202. In this embodiment, a flow control valve 600 is disposed on each first pipeline 202, and the flow rate of the gas in the corresponding first pipeline 202 is detected and controlled through each flow control valve 600, so as to control the flow rate of the oxygen gas flow supplied to the corresponding combustion tube 102 by each first pipeline 202, which is beneficial to improving the accuracy of the determination of the content of the hydrocarbon in the sample. Further, the flow control valve 600 is provided in each first line 202, and the oxygen cylinder 201 of the oxygen supply apparatus 200 can be independently controlled to supply the oxygen flow to each combustion tube 102, so that each combustion tube 102 can independently perform the test operation without interfering with the test due to the oxygen supply, thereby improving the flexibility of simultaneously performing the measurement of the hydrocarbon content with respect to a plurality of samples.

In an embodiment of the present application, referring to fig. 3 and fig. 12, the furnace moving mechanism 700 includes a supporting plate 710 fixedly mounted on the base 101, a sliding table 720 slidably disposed on the supporting plate 710, and a linear driving assembly 730 for driving the sliding table 720 to move, wherein the sliding table 720 is connected to the first furnace body 105, and the linear driving assembly 730 is connected to the sliding table 720.

In this embodiment, by adopting the above scheme, the furnace moving mechanism 700 includes the supporting plate 710, the sliding table 720, the linear driving assembly 730 and the roller assembly 740, the supporting plate 710 is fixed on the base 101 of the three-section furnace combustion apparatus 100, the sliding table 720 is slidably disposed on the supporting plate 710, the sliding table 720 is connected with the first furnace body 105, the linear driving assembly 730 for driving the sliding table 720 to move is installed on the supporting plate 710, and the roller assembly 740 for rolling and supporting the first furnace body 105 is installed on the supporting plate 710. Then when using, only need be fixed in the base 101 of three section stove burner 100 with the backup pad 710 on, utilize roller assembly 740 to roll first furnace body 105 and support on backup pad 710 to link to each other first furnace body 105 with slip table 720, alright drive slip table 720 through sharp drive assembly 730 removal, drive first furnace body 105 along burner 102 axial displacement, thereby can conveniently, fast, realize the automation of first furnace body 105 and move the stove operation steadily, need not artifical manual operation and remove first furnace body 105. In addition, in the moving process of the first furnace body 105, the roller assembly 740 plays a role of rolling and supporting the first furnace body 105, so that friction between the bottom of the first furnace body 105 and the supporting plate 710 can be reduced, and the first furnace body 105 can be moved quickly and stably.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (10)

1. A three-stage furnace combustion apparatus with an anti-wear structure, comprising:

a base;

the combustion tube is used for placing a sample;

the bracket is fixedly arranged on the base and used for supporting and fixing the combustion tube on the base;

the heating furnace is used for heating and burning the sample in the combustion tube so as to enable the carbon element and the hydrogen element in the sample to respectively react to generate carbon dioxide and water; the heating furnace is provided with a sliding hole for the combustion tube to penetrate through, and the combustion tube penetrates through the sliding hole; and

the tubular sliding joints are used for slidably supporting the combustion tube so that the heating furnace can move along the axial direction of the combustion tube, the number of the tubular sliding joints is two, the two tubular sliding joints are respectively arranged in the sliding hole, each tubular sliding joint is arranged close to the corresponding port part of the sliding hole, and each tubular sliding joint is sleeved on the outer wall of the combustion tube.

2. The three-stage furnace combustion device with an anti-wear structure according to claim 1, wherein the tubular sliding joint comprises a tubular cage, a plurality of first balls and a plurality of second balls for rolling and supporting the first balls, the inner wall of the tubular cage is concavely provided with first ball grooves for rolling and mounting the first balls respectively, and the first ball grooves are arranged in a symmetrical collar-shaped array around the axis of the tubular cage so as to form a ring-shaped array of ball groove units on the inner wall of the tubular cage; each first ball is arranged in the corresponding first ball groove in a rolling mode, a second ball groove for the second ball to be arranged in the rolling mode is formed in the inner wall of each first ball groove in a concave mode, each second ball is arranged in the corresponding second ball groove in the rolling mode, and the first balls and the corresponding second balls form spherical contact.

3. The three-stage furnace combustion device with an anti-wear structure according to claim 2, wherein a plurality of the ball groove units are arranged on the inner wall of the tubular cage in an annular array, the ball groove units in the annular array are arranged at intervals along the axial direction of the tubular cage, and the first balls are mounted in the first ball grooves of the ball groove units in the annular array in a rolling manner.

4. The three-stage furnace combustion device with a wear prevention structure of claim 3, wherein the distance between the ball groove units in two adjacent annular arrays is equal.

5. The three-stage furnace combustion device with an anti-wear structure according to claim 2, wherein a plurality of second ball grooves for rolling the second balls are formed on an inner wall of each of the first ball grooves, and the second balls are rolled in each of the second ball grooves.

6. The three-stage furnace combustion apparatus with wear prevention structure of claim 2, wherein the ball diameter of the first ball is 3 to 5 times the ball diameter of the second ball.

7. The three-stage furnace combustion device with an abrasion-proof structure according to any one of claims 1 to 6, wherein the combustion tube is provided in plurality, a plurality of the combustion tubes are provided in parallel and at intervals, the heating furnace is provided with a sliding hole for each combustion tube to pass through, each sliding joint is provided in the corresponding sliding hole, and the heating furnace is slidably supported on the corresponding combustion tube through the corresponding sliding joint.

8. The three-section furnace combustion device with an anti-wear structure according to claim 7, further comprising a sliding table for supporting the heating furnace and a first linear slide mechanism for guiding the sliding table to move, wherein the first linear slide mechanism comprises a first linear guide rail fixedly mounted on the base and a first sliding block mounted on the first linear guide rail, the first linear guide rail axially extends along the combustion tube, the bottom of the sliding table is connected with the first sliding block, and the top of the sliding table is connected with the heating furnace.

9. The three-stage furnace combustion device with an anti-wear structure according to claim 8, further comprising a cross beam with two ends respectively supported and fixed on the corresponding supports and a second linear slide mechanism for guiding the heating furnace to move, wherein the second linear slide mechanism comprises a second linear guide rail fixedly mounted on the cross beam and a second slide block mounted on the second linear guide rail, the second linear guide rail extends axially along the combustion tube, and the heating furnace is connected with the second slide block.

10. The three-stage furnace combustion device with wear prevention structure as claimed in any one of claims 1 to 6, wherein the heating furnace is an electric ceramic furnace.

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