阅读说明：本技术 屏式过热器的直排式固定装置 (Direct-discharging type fixing device of platen superheater ) 是由 李德民 吴安敏 周大同 于 2019-12-04 设计创作，主要内容包括：本发明涉及过热器领域,具体涉及屏式过热器的直排式固定装置,包括固定框架和过热器管,所述固定框架内腔中间均匀排列有多组固定环套,相邻所述固定环套之间通过焊接的第一连接杆固定连接,所述固定环套与固定框架之间通过焊接的第二连接杆固定连接,所述固定环套外侧框架壁套设安装有安装环套,所述安装环套外侧固定安装有蜂鸣器。本发明中伸缩杆配合弹簧能够有效的给与过热器管一定的预留空间防止后期膨胀,当后期膨胀到一定范围后伸缩杆内部会抵触到压力传感器从而引发报警提醒,具有良好的功能性,可有效防止过热器管突发爆裂。(The invention relates to the field of superheaters, in particular to a direct-discharge fixing device of a screen superheater, which comprises a fixing frame and superheater tubes, wherein a plurality of groups of fixing ring sleeves are uniformly arranged in the middle of an inner cavity of the fixing frame, adjacent fixing ring sleeves are fixedly connected through welded first connecting rods, the fixing ring sleeves are fixedly connected with the fixing frame through welded second connecting rods, a mounting ring sleeve is sleeved on the frame wall on the outer side of each fixing ring sleeve, and a buzzer is fixedly mounted on the outer side of each mounting ring sleeve. The telescopic rod and the spring are matched, so that a certain reserved space with the superheater tube can be effectively prevented from later expansion, when the later expansion reaches a certain range, the interior of the telescopic rod can be collided with the pressure sensor, so that alarm reminding is triggered, the telescopic rod has good functionality, and the superheater tube can be effectively prevented from bursting.)

1. The utility model provides a direct vent fixing device of platen superheater which characterized in that: the superheater tube comprises a fixed frame (1) and superheater tubes (2), wherein a plurality of groups of fixed ring sleeves (3) are uniformly arranged in the middle of an inner cavity of the fixed frame (1), adjacent fixed ring sleeves (3) are fixedly connected through welded first connecting rods (4), and the fixed ring sleeves (3) are fixedly connected with the fixed frame (1) through welded second connecting rods (5);

the inner side frame wall of the fixed frame (1) is far larger than the outer side frame wall, a slot (11) penetrates through the inner side frame wall of the fixed frame (1), two groups of mounting plates (12) are symmetrically inserted into two ends of the slot (11) in a sliding mode, the two groups of mounting plates (12) are fixedly connected with the slot (11) through bolts, and the outer side ends of the two groups of mounting plates (12) are fixedly connected with equipment through mounting bolts (13);

the fixed ring sleeve (1) is provided with an installation ring sleeve (6) on the outer side of the frame wall, and a buzzer (7) is fixedly installed on the outer side of the installation ring sleeve (6).

2. The platen superheater inline fixture as claimed in claim 1, wherein: fixed ring cover (3) inner wall fixedly connected with multiunit telescopic link (31), multiunit curved spacing hoop (33) is installed to telescopic link (31) medial extremity, contact between spacing hoop (33) arcwall face and over heater (2) is connected.

3. The platen superheater inline fixture as claimed in claim 3, wherein: the multi-group telescopic link (31) outside cover is equipped with spring (32), the both ends of spring (32) respectively with fixed ring cover (3) inner wall and spacing hoop (33) inner wall connection, and spring (32) are in the elastic extension state when not atress.

4. The platen superheater inline fixture as claimed in claim 3, wherein: the telescopic rod (31) consists of a fixed rod and a movable rod, and the movable rod is movably inserted in the fixed rod.

5. The platen superheater inline fixture as claimed in claim 3, wherein: the fixed rod is welded and fixed on the inner wall of the ring sleeve (3), and the movable rod is welded on the outer wall of the limiting hoop (33).

6. The platen superheater inline fixture as claimed in claim 3, wherein: and a pressure sensor (34) is installed at the bottom of the inner wall of the fixed rod, and the pressure sensor (34) is in contact fit with the movable rod.

7. The platen superheater inline fixture as claimed in claim 4, wherein: the pressure sensor (34) is electrically connected with the buzzer (7).

Technical Field

The invention relates to the field of superheaters, in particular to a direct-discharge type fixing device of a platen superheater.

Background

The superheater is a part in the boiler that further heats steam from a saturation temperature to a superheat temperature, and is also called a steam superheater. The superheater can be divided into a convection type, a radiation type and a semi-radiation type according to the heat transfer mode; according to the structure characteristics, the device can be divided into a serpentine tube type, a screen type, a wall type and a wall wrapping type. They are all composed of a plurality of parallel pipes and inlet and outlet headers. The screen superheater is generally fixed through a fixing device in the prior art, for example, a tube bank type fixing device is finely connected with a T-shaped fixing block through two buckled corrugated plates, each corrugated plate comprises a plurality of arc-shaped plates, at least one fixing hole is formed in a connecting plate between every two adjacent arc-shaped plates, the end part of an intermediate rod of the T-shaped fixing block penetrates through corresponding fixing holes in the two arc-shaped plates and is in threaded connection with a nut, and the nut is welded on the arc-shaped plates. However, the fixing in this way leads to the superheater tubes being in a completely fixed state, without a space being reserved, and bursting easily occurs due to the fixing when the superheater tubes are expanded.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a straight-line fixing device of a screen superheater, which comprises a fixing frame and superheater tubes, wherein a plurality of groups of fixing ring sleeves are uniformly arranged in the middle of the inner cavity of the fixing frame, adjacent fixing ring sleeves are fixedly connected through welded first connecting rods, the fixing ring sleeves are fixedly connected with the fixing frame through welded second connecting rods, a mounting ring sleeve is sleeved on the frame wall on the outer side of each fixing ring sleeve, and a buzzer is fixedly mounted on the outer side of each mounting ring sleeve.

Preferably, the inner side frame wall of the fixed frame is far larger than the outer side frame wall, the inner side frame wall of the fixed frame is provided with a slot in a penetrating mode, two ends of the slot are symmetrically inserted with two groups of mounting plates in a sliding mode, the two groups of mounting plates are fixedly connected with the slot through bolts, and the outer ends of the two groups of mounting plates are fixedly connected with equipment through mounting bolts.

Preferably, the inner wall of the fixed ring sleeve is fixedly connected with a plurality of groups of telescopic rods, the inner side ends of the plurality of groups of telescopic rods are provided with arc-shaped limiting rings, and the arc-shaped surfaces of the limiting rings are in contact connection with the superheater.

Preferably, the outer side of the multiple groups of telescopic rods is sleeved with springs, two ends of each spring are connected with the inner wall of the fixed ring sleeve and the inner wall of the limiting ring respectively, and the springs are in an elastic stretching state when not stressed.

Preferably, the telescopic link comprises a fixed link and a movable rod, the movable rod is movably inserted into the fixed link, the fixed link is welded on the inner wall of the fixed ring sleeve, the movable rod is welded on the outer wall of the limit ring, a pressure sensor is installed at the bottom of the inner wall of the fixed link, and the pressure sensor is in contact fit with the movable rod.

Preferably, the pressure sensor is electrically connected with a buzzer.

The invention has the beneficial effects that:

the fixing ring sleeve in the fixing frame, the multiple groups of arc-shaped limiting hoops and the telescopic rods which are arranged in the fixing frame, and the springs sleeved outside the telescopic rods are used for limiting and mounting the superheater tubes, the telescopic rods are integrally mounted by matching with the mounting plates and the mounting bolts which can be adjusted and stored, the telescopic rods can effectively provide certain reserved space with the superheater tubes for preventing later expansion by matching with the springs, and after the later expansion reaches a certain range, the insides of the telescopic rods can collide with the pressure sensors to trigger alarm reminding, so that early warning operation is performed in advance.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic top view of an inline fixture of the present invention;

FIG. 2 is a schematic view from the front of the assembled structure of the present invention;

FIG. 3 is a schematic top view of the fixed frame structure of FIG. 1 in accordance with the present invention;

FIG. 4 is a schematic view of the retaining ring set shown in FIG. 1 according to the present invention;

figure 5 is a cross-sectional view of the telescoping pole configuration of the present invention from the perspective of figure 4.

In the figure: 1-fixed frame, 11-slot, 12-mounting plate, 13-mounting bolt, 2-superheater tube, 3-fixed ring sleeve, 31-telescopic rod, 32-spring, 33-limiting hoop, 34-pressure sensor, 4-first connecting rod, 5-second connecting rod, 6-mounting ring sleeve and 7-buzzer.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 5, the fixing device for fixing a screen superheater in a straight line according to an exemplary embodiment of the present invention includes a fixing frame 1 and superheater tubes 2, wherein a plurality of sets of fixing ring sleeves 3 are uniformly arranged in the middle of an inner cavity of the fixing frame 1, adjacent fixing ring sleeves 3 are fixedly connected by a welded first connecting rod 4, the fixing ring sleeves 3 are fixedly connected with the fixing frame 1 by a welded second connecting rod 5, a mounting ring sleeve 6 is sleeved on an outer frame wall of the fixing ring sleeve 1, and a buzzer 7 is fixedly mounted on an outer side of the mounting ring sleeve 6.

Specifically, the frame wall in fixed frame 1 inboard is far greater than the frame wall in the outside, and fixed frame 1 inboard frame wall runs through and is provided with slot 11, and slot 11 both ends symmetry slip is pegged graft and is had two sets of mounting panels 12, and is fixed through bolted connection between two sets of mounting panels 12 and the slot 11, and two sets of mounting panels 12 outside end is through mounting bolt 13 fixed connection equipment.

Preferably, the inner wall of the fixed ring sleeve 3 is fixedly connected with a plurality of groups of telescopic rods 31, the inner ends of the plurality of groups of telescopic rods 31 are provided with arc-shaped limiting hoops 33, and the arc-shaped surfaces of the limiting hoops 33 are in contact connection with the superheater 2.

The outer side of the multiple groups of telescopic rods 31 is sleeved with a spring 32, two ends of the spring 32 are respectively connected with the inner wall of the fixed ring sleeve 3 and the inner wall of the limiting hoop 33, and the spring 32 is in an elastic state when not stressed.

Preferably, the telescopic rod 31 is composed of a fixed rod and a movable rod, and the movable rod is movably inserted into the fixed rod.

The fixed rod is welded on the inner wall of the fixed ring sleeve 3, the movable rod is welded on the outer wall of the limiting hoop 33, the pressure sensor 34 is installed at the bottom of the inner wall of the fixed rod, and the pressure sensor 34 is in contact fit with the movable rod.

The pressure sensor 34 of the present invention is electrically connected to the buzzer 7.

In the process of installation, the overheating organ 3 is inserted into the fixing ring sleeve 3 in the fixing frame 1, the outer side wall of the overheating tube 2 is in interference connection with the arc-shaped limiting hoop 33 in the fixing ring sleeve 3, and the overheating tube 2 is in interference connection with the limiting hoop 33 to compress the telescopic rod 31 and the spring 32 sleeved outside the telescopic rod 31. Then, the mounting plate 12 inserted in the slot 11 in the inner side wall of the fixed frame 1 is drawn out in a sliding mode, the drawing length of the mounting plate is adjusted, the mounting plate 12 and the inner wall of the insertion slot 11 are fixed through bolts, the mounting plate 12 is fixedly mounted in equipment through mounting bolts 13, the extending length of the mounting plate 12 can be adjusted according to the sizes of different equipment, and the size and the stability of a mounting contact surface are improved.

After fixing mounting in line to superheater pipe 2, when making the process use, the inflation can probably take place for superheater pipe 2, thereby extrude the spring 32 in telescopic link 31 and outside, too expand or expand after certain extent when superheater pipe 2 probably takes place, the movable rod in telescopic link 31 outside can contradict the pressure sensor 34 of dead lever inner wall, pressure sensor 34 can trigger bee calling organ 7 through the electrically connected controller and report to the police when receiving extrusion pressure, the staff can in time discharge the pipeline, prevent the occurence of failure.

In the description of the present invention, it is to be understood that the terms indicating an orientation or positional relationship are based on the orientation or positional relationship shown in the drawings only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.