Heating device for sampling tube

Abstract

The utility model relates to a heating device for a sampling pipe, and relates to the technical field of natural gas sampling. The heating device provided by the utility model comprises a frame body, wherein a sliding hole is formed in the frame body; the sliding rod is slidably mounted in the sliding hole, the first end of the sliding rod extends into the frame body and is connected with a heater, the side, away from the first end, of the heater is provided with an arc-shaped heating surface, and the second end of the sliding rod extends out of the frame body; the elastic piece is mounted on the frame body and can drive the sliding rod to slide so as to press the arc-shaped heating surface on the sampling tube; the power supply is located outside the frame body, a first conductor is wrapped in the sliding rod, one end of the first conductor is electrically connected with the heater, and the other end of the first conductor extends out of the second end of the sliding rod to be connected with the power supply. The strength of the first conductor is improved through wrapping of the guide rod, and deformation of the first conductor is small when the guide rod moves. Therefore, poor contact caused by fracture of the first conductor is avoided, and the stability of the heating device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of natural gas sampling, in particular to a heating device for a sampling tube. Background Art

[0002] Since there are impurities in the natural gas obtained from mining, it is necessary to use natural gas purification equipment to purify the collected natural gas to remove acid gas and other impurity gases in the natural gas. In order to ensure the safe operation of the purification equipment, it is necessary to regularly sample the natural gas in the natural gas purification equipment. In order to facilitate sampling, a sampling tube is provided on the natural gas purification equipment, and sampling can be performed by collecting the natural gas flowing out of the sampling tube.

[0003] However, the sampling process is often affected by the ambient temperature, especially in the cold winter, when the sulfur carried in the gas may clog the sampling tube. The sampling tube will be heated during sampling. Some samplers will use a portable sampling gate heating device such as patent CN210888885 U to heat the sampling tube, which can be clamped outside the sampling tube through an arc heating plate to achieve heating of the sampling tube. This facilitates sampling work in winter.

[0004] However, during use, the reciprocating movement of the baffle may sometimes cause poor contact between the wire and the arc heating plate, resulting in unstable heating effect. In addition, the connection between the arc heating plate and the wire is located inside the main housing, which is more troublesome to repair. Utility Model Content

[0005] The utility model provides a heating device for a sampling tube, which is used for improving the stability of the heating device and adapting to the reciprocating movement of the heater.

[0006] The utility model provides a heating device for a sampling tube, which comprises: a frame body, which is provided with a sliding hole; a sliding rod, which is slidably installed in the sliding hole, and the first end of which extends into the frame body and is connected to a heater, the heater has an arc-shaped heating surface on a side away from the first end, and the second end of the sliding rod extends out of the frame body; an elastic member, which is installed in the frame body and can drive the sliding rod to slide so as to press the arc-shaped heating surface against the sampling tube; and a power supply, which is located outside the frame body, the sliding rod is wrapped with a first conductor, one end of the first conductor is electrically connected to the heater, and the other end of the first conductor extends from the second end of the sliding rod and is connected to the power supply.

[0007] In one embodiment, a limiting protrusion is provided on the portion of the sliding rod extending into the frame; the elastic member is sleeved outside the sliding rod, and one end of the elastic member abuts against the inner wall of the frame, and the other end of the elastic member abuts against the limiting protrusion.

[0008] In one embodiment, a stud structure is provided at the second end, and the stud structure is connected to a baffle through a connecting nut, and the length of the baffle is greater than the inner diameter of the sliding hole.

[0009] In one embodiment, the sliding rod includes a rod structure, one end of the rod structure is connected to the stud structure, and the other end of the rod structure is connected to the heater, wherein the outer contour size of the rod structure is adapted to the inner contour size of the sliding hole, and the stud structure is thinner than the rod structure.

[0010] In one embodiment, the heating device further comprises a guide rod, which is arranged outside the frame body and whose extension direction is parallel to the axis of the sliding hole; the baffle is provided with a guide hole, and the guide rod is inserted into the guide hole.

[0011] In one embodiment, the cross section of the sliding rod is a non-circular cross section, and the sliding hole can limit the rotation of the sliding rod in the sliding hole.

[0012] In one embodiment, the frame includes a first side panel and a second side panel that are arranged opposite to each other, and sliding rods are installed on both the first side panel and the second side panel, and the sliding rod installed on the first side panel is symmetrical with the sliding rod installed on the second side panel, so that the arc heating surfaces of the two heaters installed on the two sliding rods are symmetrically arranged.

[0013] In one embodiment, the frame further includes a third side plate, the third side plate is located between the first side plate and the second side plate, and an observation window is provided on the third side plate, and the observation window is located above the heater.

[0014] In one embodiment, the frame includes a first side panel, a third side panel, a second side panel and a fourth side panel connected in sequence, wherein an end of the fourth side panel away from the second side panel is connected to the first side panel, one side of the first side panel is detachably connected to the third side panel, and the other side of the first side panel is detachably connected to the fourth side panel.

[0015] In one embodiment, one end of the first conductor extending out of the second end is electrically connected to the power supply via a connecting wire, and one end of the connecting wire away from the power supply is provided with a wiring connector, which is detachably electrically connected to the first conductor.

[0016] Compared with the prior art, the utility model has the advantage that it uses a first conductor to electrically connect the power supply and the heater, and the first conductor is wrapped inside the guide rod. Not only does the wrapping of the guide rod improve the strength of the first conductor, but also when the guide rod moves, the first conductor moves synchronously, and the deformation of the first conductor is small. In other words, the probability of damage to the first conductor is reduced in terms of improving the strength of the first conductor and reducing the deformation of the first conductor. Poor contact caused by the breakage of the first conductor is avoided, and the stability of the heating device is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0018] Figure 1 It is a cross-sectional structural schematic diagram of a heating device in an embodiment of the utility model;

[0019] Figure 2 It is a schematic diagram of the top view of the heating device in the embodiment of the utility model.

[0020] Reference numerals:

[0021] 1. frame; 11. first side panel; 12. second side panel; 13. third side panel; 14. fourth side panel; 15. observation window;

[0022] 2. Sliding rod; 21. Rod structure; 22. Stud structure; 23. Limiting protrusion;

[0023] 3. Heater; 31. Arc heating surface;

[0024] 4. Elastic parts;

[0025] 5. Power supply;

[0026] 6. The first conductor;

[0027] 71. baffle; 72. connecting nut; 73. guide rod;

[0028] 81. Connecting wires; 82. Wiring connectors. DETAILED DESCRIPTION

[0029] The utility model will be further described below in conjunction with the accompanying drawings.

[0030] See also Figure 1 and Figure 2 As shown, the utility model provides a heating device for a sampling tube, which includes a frame 1, a sliding rod 2, a heater 3, an elastic body and a power supply 5.

[0031] The sliding rod 2 is installed in the sliding hole of the frame 1 , and the sliding rod 2 can slide along the axis of the sliding hole under the drive of the elastic member 4 .

[0032] The heater 3 is arranged at the first end of the sliding rod 2, and an arc-shaped heating surface 31 is arranged at the end of the heater 3 away from the first end of the sliding rod 2. When the elastic member 4 drives the sliding rod 2 to slide, the arc-shaped heating surface 31 can be closely attached to the outside of the sampling tube. When the inside of the sampling tube is solidified and blocked, the solidified components in the sampling tube can be melted or sublimated by heating of the arc-shaped heating surface 31, so that the sampling tube is unobstructed.

[0033] In this embodiment, the power source 5 is arranged outside the frame 1, and the power source 5 is electrically connected to the heater 3 through the first conductor 6. The second end of the sliding rod 2 extends out of the frame 1, and the end of the first conductor 6 away from the heater 3 extends out of the second end of the sliding rod 2 and is connected to the power source 5.

[0034] The sliding rod 2 is wrapped around the first conductor 6, and the strength of the first conductor 6 can be improved by wrapping the sliding rod 2. During the movement of the first conductor 6, the first conductor 6 and the heater 3 will move synchronously under the drive of the sliding rod 2, thereby avoiding the breakage of the connection between the first conductor 6 and the heater 3 due to large deformation. In other words, the present application avoids the breakage of the first conductor 6 from two aspects: improving the strength of the first conductor 6 and reducing the deformation of the first conductor 6. There is no need to frequently go deep into the frame 1 to repair the heating device.

[0035] In some implementations, the first conductor 6 adopts a rigid structure such as a copper column or an iron column, which has higher strength. In another implementation, the first conductor 6 may also adopt a wire structure.

[0036] like Figure 1 and Figure 2 As shown, in some implementations, the portion of the sliding rod 2 extending into the frame 1 is provided with a limiting protrusion 23, the elastic member 4 is sleeved outside the sliding rod 2, and one end of the elastic member 4 abuts against the inner wall of the frame 1, and the other end of the elastic member 4 abuts against the limiting protrusion 23. By providing the limiting protrusion 23 to cooperate with the elastic member 4, the effect of the elastic member 4 driving the sliding rod 2 to slide is achieved. Among them, the elastic member 4 can be a spring.

[0037] In another implementation, the elastic member 4 can also be arranged outside the frame 1, with one side connected to the outer wall of the frame 1 and the other side connected to the second end of the sliding rod 2. The elastic contraction of the elastic member 4 can realize the arc-shaped heating surface 31 of the heater 3 to be close to the sampling tube.

[0038] In some implementations, a stud structure 22 is provided at the second end, and the stud structure 22 is connected to a baffle 71 through a connecting nut 72, and the length of the baffle 71 is greater than the inner diameter of the sliding hole. Specifically, the second end of the sliding rod 2 is inserted into the through hole of the baffle 71, and the stud structure 22 extending out of the through hole of the baffle 71 is threadedly connected with the connecting nut 72, so that the baffle 71 structure is fixedly connected to the sliding rod 2. By connecting the baffle 71 at the second end, the sliding rod 2 is prevented from sliding off the frame 1. In some implementations, a handle structure can be provided on the baffle 71, and the baffle 71 is pulled before heating the sampling tube, so that the sliding rod 2 deviates from the initial position to leave a larger space for the sampling tube to pass through the frame 1. Then the baffle 71 is released, and the heater 3 is driven to be close to the sampling tube under the action of the elastic member 4.

[0039] like Figure 1 and Figure 2As shown, in some implementations, the sliding rod 2 includes a rod structure 21, one end of the rod structure 21 is connected to a stud structure 22, and the other end of the rod structure 21 is connected to the heater 3, wherein the outer contour size of the rod structure 21 is adapted to the inner contour size of the sliding hole, and the stud structure 22 is thinner than the rod structure 21. In other words, the rod structure 21 of the sliding rod 2 is inserted into the sliding hole and cooperates with the sliding hole, so that the sliding rod 2 is slidably installed in the sliding hole. The stud structure 22 is set to be thinner than the rod structure 21, so that the stud structure 22 can be easily passed through the sliding hole from the inside of the frame 1, so that the sliding rod 2 can be installed in the sliding hole. At the same time, a thicker sliding rod 2 can be used to achieve the positioning of the baffle 71.

[0040] like Figure 2 As shown, in some implementations, the heating device further includes a guide rod 73, which is disposed on the outside of the frame 1, and the extension direction of the guide rod 73 is parallel to the axis of the sliding hole. The baffle 71 is provided with a guide hole, and the guide rod 73 is inserted into the guide hole. The baffle 71 is positioned by the guide rod 73 and the sliding rod 2 to prevent the baffle 71 from deflecting. One side of the baffle 71 is connected to the sliding rod 2, and the other side is connected to the guide rod 73, so that an operating space for a hand to pass through can be formed between the guide rod 73 and the sliding rod 2, so that the user can pull the baffle 71 to adjust the position of the sliding rod 2.

[0041] In some implementations, the cross section of the sliding rod 2 is a non-circular cross section. The sliding hole can limit the sliding rod 2 from rotating in the sliding hole. Specifically, the cross section of the guide rod 73 can be set to a rectangular cross section, a triangular cross section, or an elliptical cross section, etc., and the cross section can also be made non-circular by opening a limit groove on the cylindrical structure. The sliding hole limits the rotation of the sliding rod 2 so that the arc-shaped heating surface 31 of the heater 3 can fit the sampling tube.

[0042] In some implementations, the frame 1 includes a first side plate 11 and a second side plate 12 that are arranged opposite to each other, and the sliding rod 2 is installed on both the first side plate 11 and the second side plate 12, and the sliding rod 2 installed on the first side plate 11 is symmetrical with the sliding rod 2 installed on the second side plate 12, so that the arc-shaped heating surfaces 31 of the two heaters 3 installed on the two sliding rods 2 are symmetrically arranged. When in use, the sliding rod 2 installed on the first side plate 11 and the sliding rod 2 installed on the second side plate 12 are located on opposite sides of the sampling tube, and the opposite sides of the sampling tube are heated simultaneously by the arc-shaped heating surfaces 31 of the two heaters 3.

[0043] In some implementations, the frame 1 further includes a third side plate 13, the third side plate 13 is located between the first side plate 11 and the second side plate 12, and an observation window 15 is provided on the third side plate 13, and the observation window 15 is located above the heater 3. By providing the observation window 15, it is convenient for the user to observe the position of the sampling tube in the frame 1 during operation, so as to adjust the frame 1 so that the arc-shaped heating surface 31 fits the sampling tube. The difficulty of installing the heating device is reduced.

[0044] like Figure 1 and Figure 2 As shown, in some implementations, the frame 1 includes a first side plate 11, a third side plate 13, a second side plate 12, and a fourth side plate 14 connected in sequence, wherein one end of the fourth side plate 14 away from the second side plate 12 is connected to the first side plate 11, one side of the first side plate 11 is detachably connected to the third side plate 13, and the other side of the first side plate 11 is detachably connected to the fourth side plate 14. The frame 1 can be separated by removing the first side plate 11, so that the heater 3 located in the frame 1 can be taken out and the heater 3 can be repaired. In some implementations, the detachable connection can be achieved by a threaded connection, or by a snap-on connection, and the specific detachable connection method is not limited.

[0045] according to Figure 1 It can be seen that the frame body 1 is a rectangular frame structure, wherein the first side plate 11 is parallel to the second side plate 12 , the third side plate 13 is parallel to the fourth side plate 14 , and the first side plate 11 is perpendicular to the third side plate 13 .

[0046] like Figure 1 and Figure 2 As shown, in some implementations, one end of the first conductor 6 extending from the second end is electrically connected to the power source 5 via a connecting wire 81 , and a wiring connector 82 is provided at one end of the connecting wire 81 away from the power source 5 , and the wiring connector 82 is detachably electrically connected to the first conductor 6 .

[0047] When in use, the wiring connector 82 can be separated from the first conductor 6 first, and then the wiring connector 82 can be connected to the first conductor 6 after the arc-shaped heating surface 31 is close to the sampling tube. After the heating is completed, the wiring connector 82 can be separated from the first conductor 6 first, and then the arc-shaped heating surface 31 can be separated from the sampling tube, and the frame 1 can be taken out from the sampling tube. By controlling the timing of connecting the wiring connector 82 with the first conductor 6, it is possible to avoid pulling the connecting wire 81 when the sliding rod 2 slides, thereby reducing the risk of the connecting wire 81 breaking.

[0048] The detachable connection between the terminal connector 82 and the first conductor 6 can be achieved by means of threaded connection, snap-on connection or adsorption connection.

[0049] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A heating device for a sampling tube, characterized in that: It includes: A frame body having a sliding hole; A sliding rod, which is slidably mounted in the sliding hole, and a first end of which extends into the interior of the frame and is connected to a heater, a side of the heater away from the first end having an arc-shaped heating surface, and a second end of the sliding rod extends out of the frame; An elastic member, the elastic member is mounted on the frame and can drive the sliding rod to slide so as to press the arc-shaped heating surface against the sampling tube; as well as A power supply is located outside the frame, a first conductor is wrapped in the sliding rod, one end of the first conductor is electrically connected to the heater, and the other end of the first conductor extends from the second end of the sliding rod and is connected to the power supply.

2. The heating device according to claim 1, characterized in that The portion of the sliding rod extending into the frame is provided with a limiting protrusion; The elastic member is sleeved outside the sliding rod, and one end of the elastic member abuts against the inner wall of the frame, and the other end of the elastic member abuts against the limiting protrusion.

3. The heating device according to claim 1 or 2, characterized in that: The second end is provided with a stud structure, the stud structure is connected to a baffle through a connecting nut, and the length of the baffle is greater than the inner diameter of the sliding hole.

4. The heating device according to claim 3, characterized in that: The sliding rod includes a rod structure, one end of which is connected to the stud structure, and the other end of which is connected to the heater, wherein the outer contour size of the rod structure is adapted to the inner contour size of the sliding hole, and the stud structure is thinner than the rod structure.

5. The heating device according to claim 3, characterized in that: The heating device further comprises a guide rod, which is arranged outside the frame body and has an extending direction parallel to the axis of the sliding hole; the baffle is provided with a guide hole, and the guide rod is inserted into the guide hole.

6. The heating device according to claim 1, characterized in that: The cross section of the sliding rod is a non-circular cross section, and the sliding hole can limit the sliding rod from rotating in the sliding hole.

7. The heating device according to claim 1 or 2, characterized in that: The frame includes a first side plate and a second side plate that are arranged opposite to each other, and sliding rods are installed on the first side plate and the second side plate, and the sliding rod installed on the first side plate is symmetrical with the sliding rod installed on the second side plate, so that the arc heating surfaces of the two heaters installed on the two sliding rods are symmetrically arranged.

8. The heating device according to claim 7, characterized in that: The frame body further includes a third side plate, the third side plate is located between the first side plate and the second side plate, an observation window is provided on the third side plate, and the observation window is located above the heater.

9. The heating device according to claim 1, characterized in that: The frame includes a first side panel, a third side panel, a second side panel and a fourth side panel connected in sequence, wherein an end of the fourth side panel away from the second side panel is connected to the first side panel, one side of the first side panel is detachably connected to the third side panel, and the other side of the first side panel is detachably connected to the fourth side panel.

10. The heating device according to claim 1, characterized in that One end of the first conductor extending out of the second end is electrically connected to the power source via a connecting wire, and one end of the connecting wire away from the power source is provided with a wiring connector, and the wiring connector is detachably electrically connected to the first conductor.

Images