Emergency lifting device for organic heat carrier boiler

Abstract

The utility model discloses an emergency lifting device for an organic heat carrier boiler, which relates to the technical field of boiler safety and comprises a winding machine mounted at the bottom of the boiler and a guide device mounted on the boiler and positioned right above a vent hole, and a steel wire rope of the winding machine is connected with a cover plate component of the vent hole through the guide device; the guiding device comprises a base and a guiding pulley which is installed on the base and located over the vent hole, and the steel wire rope penetrates through the guiding pulley and then is perpendicularly connected with the cover plate assembly. When an emergency situation occurs, a worker winds the steel wire rope at the bottom of the boiler through the winding machine, so that the cover plate assembly is lifted through the steel wire rope, the cover plate assembly is pulled out of the vent hole, the operation steps of the worker are reduced, the labor intensity of the worker is reduced, and the life safety of the worker is guaranteed. And meanwhile, the working efficiency is improved, heat conduction liquid leakage caused by the pipe explosion phenomenon is avoided, fire disasters, explosion and other accidents are avoided, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of boiler safety, in particular to an emergency lifting device for an organic heat carrier boiler. Background Art

[0002] The organic heat carrier boiler is a new type of special boiler that uses heat transfer fluid as the heating medium and has the characteristics of low pressure and high temperature operation. In the event of an emergency, such as a power outage, the heat carrier circulation oil pump stops working and the heat transfer fluid in the pipeline cannot flow. The waste heat in the organic heat carrier boiler will continue to heat the heat transfer fluid in the pipeline, causing pipe bursts, which will lead to leakage of the heat transfer fluid and cause fires, explosions and other accidents. There is an air vent on the top of the organic heat carrier boiler, which is normally sealed with an insulation cover assembly. In the event of an emergency, such as a power outage, workers climb the ladder to the top of the boiler and manually lift the insulation cover assembly, using air to lower the internal temperature of the organic heat carrier boiler and the temperature of the heat transfer fluid in the boiler to avoid pipe bursts.

[0003] This method of opening the vents has the following problems: 1. Workers need to climb ladders, so the opening efficiency is low; when the vents of multiple organic heat carrier boilers need to be opened, burst pipes may occur due to untimely opening, which may cause leakage of heat transfer fluid, leading to fire, explosion and other accidents; 2. In an emergency, workers are at risk of stepping on empty space or falling when climbing ladders; there is a risk of scalding or burning by hot air when manually lifting the insulation cover assembly. Utility Model Content

[0004] The purpose of the utility model is to provide an emergency lifting device for an organic heat carrier boiler. A winding machine is arranged at the bottom of the boiler, and the cover plate assembly is lifted by the winding machine, thereby reducing the steps of manual operation, improving work efficiency, and ensuring the life safety of workers.

[0005] In order to achieve the above-mentioned purpose, the utility model provides an emergency lifting device for an organic heat carrier boiler, comprising a winding machine installed at the bottom of the boiler and a guiding device installed on the boiler and located directly above the vent, the wire rope of the winding machine is connected to the cover plate assembly of the vent through the guiding device; the guiding device comprises a base and a guide pulley installed on the base and located directly above the vent, the wire rope passes through the guide pulley and is vertically connected to the cover plate assembly.

[0006] After adopting the above structure, when encountering an emergency, the worker can reel in the wire rope through the winding machine at the bottom of the boiler, and then pull the cover plate assembly through the wire rope to pull it out of the vent, thereby reducing the steps of the worker's operation, reducing the labor intensity of the worker, avoiding the risk of workers stepping on the ladder and falling when climbing the ladder in an emergency, and the risk of being scalded or burned by hot air when manually lifting the top cover plate, thereby ensuring the life safety of the workers. At the same time, workers can use this device to quickly open the cover plate assemblies on the top of multiple organic heat carrier boilers, improve work efficiency, avoid the leakage of heat transfer fluid caused by pipe burst, thereby causing fires, explosions and other accidents, and improve the practicality of the device.

[0007] In order to achieve stable lifting of the cover plate assembly and avoid deflection of the cover plate assembly due to unstable center of gravity during the lifting process, a lifting ring is fixed at the center of gravity of the cover plate assembly, and a steel wire rope is connected to the lifting ring.

[0008] In order to avoid interference and wear between the wire rope and the base or boiler during the winding process, a support pulley is installed on the side of the base between the winder and the guide pulley. The sliding direction of the support pulley is consistent with that of the guide pulley, and the wire rope is supported on the support pulley.

[0009] In order to prevent the hand wheel from being loosened and the wire rope from rewinding, causing the cover assembly to fall, the winder includes a fixed frame and a drum rotatably mounted on the fixed frame, a hand wheel is fixed on the drum, and a ratchet mechanism is also arranged between the drum and the fixed frame.

[0010] In order to reduce the friction between the cover plate assembly and the vent, thereby reducing the pulling force of the wire rope and reducing the pressure of the winding machine, the cover plate assembly includes a cover plate body, which is buckled on the vent and its bottom is inserted into the vent; the cover plate body is provided with a plurality of positioning slides on the circumference of its bottom, and a center slide is provided at its center axis position, and the positioning slide is connected to the center slide; an elastic pin is installed with a limited sliding in the positioning slide, and a first return spring is provided between the elastic pin and the cover plate body, the first return spring retracts the elastic pin into the positioning slide, and its inner end extends into the center slide, and the end of the elastic pin extending into the center slide is an arc-shaped surface; a lifting column is installed with a limited sliding in the upper and lower limit sliding in the center slide, and a second return spring is provided between the lifting column and the cover plate body, the second return spring drives the lifting column to slide downward and enables the elastic pin to overcome the extrusion force of the first return spring, squeezes the elastic pin out of the center slide and makes its outer end extend out of the positioning slide and get stuck on the inner side of the vent; the lifting ring is fixed at the upper center position of the lifting column.

[0011] In order to ensure that the cover plate assembly is guided during the lifting process, the guiding device also includes a guide column fixed on the top of the boiler, and the cover plate body is slidably installed on the guide column.

[0012] In order to prevent the cover assembly from touching the top due to excessive lifting force, a third return spring is provided between the top of the guide column and the cover body.

[0013] In order to achieve stable guidance of the cover plate assembly, a plurality of guide columns are evenly arranged around the cover plate body.

[0014] After adopting the above technical solution, the beneficial effects of the utility model are:

[0015] The utility model discloses an emergency lifting device for an organic heat carrier boiler, which solves the technical problem in the prior art that when the organic heat carrier boiler encounters an emergency and the vent hole needs to be opened, the manual opening is inefficient and easily causes personal injury. The utility model provides a winding machine at the bottom of the boiler, and the cover plate assembly is lifted by the winding machine, thereby reducing the steps of manual operation and ensuring the life safety of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of an emergency lifting device for an organic heat carrier boiler of the utility model;

[0017] Figure 2 yes Figure 1 A partial enlarged view of middle A;

[0018] Figure 3 yes Figure 1 Middle half section view;

[0019] Figure 4 yes Figure 3 A partial enlarged view of B in the middle;

[0020] Figure 5 It is a structural diagram of the winding machine.

[0021] In the figure, 1. boiler, 11. vent, 2. winder, 21. fixed frame, 22. reel, 23. hand wheel, 24. ratchet mechanism, 3. guide device, 31. base, 32. guide pulley, 33. support pulley, 34. guide column, 35. third return spring, 4. wire rope, 5. cover assembly, 51. cover body, 511. positioning slide, 512. center slide, 52. elastic pin, 53. first return spring, 54. lifting column, 55. second return spring. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings.

[0023] The positions involved in this specification are based on the positions of the emergency lifting device for an organic heat carrier boiler of the utility model when it is working normally, and do not limit its positions during storage and transportation. They only represent relative position relationships, not absolute position relationships.

[0024] Embodiment 1:

[0025] like Figure 1 and Figure 2 As shown together, an emergency lifting device for an organic heat carrier boiler includes a winder 2 installed at the bottom of the boiler 1 and a guide device 3 installed on the boiler 1 and located directly above the vent 11, and a steel wire rope 4 of the winder 2 is connected to a cover plate assembly 5 of the vent 11 through the guide device 3.

[0026] The cover plate assembly 5 is buckled on the vent hole 11. Since the organic heat carrier boiler has the characteristics of low pressure and high temperature operation, the internal pressure is not high. The cover plate assembly 5 is inserted into the vent hole 11 through the sealing ring to achieve sealing. When disassembling, the vent hole 11 can be opened by pulling it out from the vent hole 11.

[0027] The guide device 3 includes a base 31 and a guide pulley 32 installed on the base 31 and located directly above the vent hole 11 . The steel wire rope 4 passes through the guide pulley 32 and is vertically connected to the cover plate assembly 5 .

[0028] The base 31 is reasonably arranged according to the actual situation of the top of the organic heat carrier boiler, as long as the guide pulley 32 can be stably fixed just above the vent hole 11, and this embodiment does not impose any limitation on this.

[0029] In order to facilitate the connection between the steel wire rope 4 and the cover assembly 5, a lifting ring for lifting the cover assembly 5 is installed above the cover assembly 5. The lifting ring is set at the center of gravity of the cover assembly 5, and the steel wire rope 4 is connected to the lifting ring. The lifting ring is located at the center of gravity, which is convenient for vertically lifting the cover assembly 5 to prevent the cover assembly 5 from being stuck due to skewing and unable to be lifted. The guide pulley 32 is located directly above the vent 11. After the steel wire rope 4 passes through the guide pulley 32, it is vertically connected to the cover assembly 5, thereby avoiding the steel wire rope 4 from being connected at an angle. During the lifting process, the inclined force causes the cover assembly 5 to be stuck at the bottom, resulting in the inability to lift.

[0030] In order to support and guide the steel wire rope 4 and avoid friction between the steel wire rope 4 and the base 31 or the top of the boiler 1, which may damage the boiler 1 or the steel wire rope 4, a support pulley 33 is installed on the side of the base 31 between the winder 2 and the guide pulley 32. The sliding direction of the support pulley 33 is consistent with that of the guide pulley 32, and the steel wire rope 4 is supported on the support pulley 33. The installation position and number of the support pulley 33 are reasonably set according to the shape of the boiler 1. The symmetry of this embodiment is not limited as long as the steel wire rope 4 can form a smooth transition between the guide pulley 32 and the winder 2.

[0031] like Figure 1 and Figure 5 As shown together, the winding machine 2 includes a fixed frame 21 and a reel 22 rotatably mounted on the fixed frame 21, a hand wheel 23 is fixed on the reel 22, and a ratchet mechanism 24 is also provided between the reel 22 and the fixed frame 21. The reel 22 is locked in one direction by the ratchet mechanism 24 to prevent the hand wheel 23 from loosening and causing the cover assembly 5 to slip. When the cover assembly 5 needs to be released again, the ratchet mechanism 24 can be released.

[0032] When encountering an emergency, such as a power outage, the worker rotates the hand wheel 23 to drive the drum 22 to rotate, thereby winding the wire rope 4, and then pulling the cover assembly 5 at the other end of the wire rope 4, thereby pulling the cover assembly 5 out of the vent 11, and opening the vent 11.

[0033] When it is necessary to re-fasten the cover assembly 5 , the worker releases the restriction of the ratchet mechanism 24 , and the cover assembly 5 falls down and re-fastens on the vent 11 . The worker then climbs up the ladder and presses the cover assembly 5 into the vent 11 again.

[0034] Embodiment 2:

[0035] Although the organic heat carrier boiler has a low-pressure working characteristic, in order to ensure the sealing of the vent hole 11, although there is no rigid connection between the cover plate assembly 5 and the vent hole 11, a large friction force is still required between them to ensure that the cover plate assembly 5 does not separate from the vent hole 11. Because there is a large friction force between them, and the cover plate assembly 5 needs to have a large gravity, a large pulling force is required to pull it apart, which causes a heavy burden on the winder 2. In order to reduce the pressure of the winder 2, the cover plate assembly 5 is improved in this embodiment.

[0036] like Figure 3 and Figure 4As shown, the cover assembly 5 includes a cover body 51, which is buckled on the vent 11, and its bottom is inserted into the vent 11. The cover body 51 is provided with a plurality of positioning slides 511 on the circumference of its bottom, and a center slide 512 is provided at the center axis position, and the positioning slide 511 is connected to the center slide 512. An elastic pin 52 is installed in the positioning slide 511 for limited sliding, and a first return spring 53 is provided between the elastic pin 52 and the cover body 51. The first return spring 53 retracts the elastic pin 52 into the positioning slide 511, and its inner end extends into the center slide 512, and the end of the elastic pin 52 extending into the center slide 512 is an arc-shaped surface. A lifting column 54 is installed in the central slideway 512 in an upper and lower limited sliding manner. A second return spring 55 is arranged between the lifting column 54 and the cover body 51. The second return spring 55 drives the lifting column 54 to slide downward and enables the elastic pin 52 to overcome the extrusion force of the first return spring 53, so that the elastic pin 52 is squeezed out of the central slideway 512 and the outer end thereof extends out of the positioning slideway 511 and is stuck on the inner side of the vent hole 11. The lifting ring is fixed at the upper center position of the lifting column 54.

[0037] When it is necessary to lift the cover assembly 5, the steel wire rope 4 pulls up the lifting column 54. Under the action of the pulling force, the lifting column 54 overcomes the second return spring 55 and rises. The lifting column 54 rises, and the inner end of the elastic pin 52 loses the blocking force. Under the action of the first return spring 53, the elastic pin 52 retracts into the positioning slide 511, and its inner end extends into the center slide 512, thereby achieving the failure of the locking of the elastic pin 52. The steel wire rope 4 continues to pull up the lifting column 54, and the lifting column 54 drives the cover body 51 to overcome the friction with the side wall of the vent 11, and pulls the cover assembly 5 out of the vent 11.

[0038] By setting the elastic pin 52, the cover plate assembly 5 and the vent hole 11 are clamped together by the elastic pin 52, so that the friction between the cover plate assembly 5 and the vent hole 11 can be reduced, and only the sealing performance is ensured, thereby reducing the pulling force.

[0039] When it is necessary to reassemble, the method of the first embodiment can be referred to and the cover body 51 can be assembled by workers.

[0040] Embodiment three:

[0041] like Figure 1 and Figure 2As shown together, in order to ensure that the cover plate assembly 5 can rise vertically during the rising process and avoid shaking, which may cause the bottom to get stuck and make it impossible to lift, this embodiment is further improved on the basis of the first embodiment, and the guide device 3 also includes a guide column 34 fixed to the top of the boiler 1, and the cover plate body 51 is slidably mounted on the guide column 34. In order to achieve the stability of the guide, a plurality of guide columns 34 are evenly arranged around the cover plate body 51, and four are arranged in this embodiment.

[0042] In order to prevent the cover assembly 5 from hitting the top due to excessive pulling during the pulling process, a third return spring 35 is provided between the top of the guide column 34 and the cover body 51 .

[0043] The utility model discloses an emergency lifting device for an organic heat carrier boiler, which solves the technical problem in the prior art that when the organic heat carrier boiler encounters an emergency and the vent hole needs to be opened, the manual opening is inefficient and easily causes personal injury. The utility model provides a winding machine at the bottom of the boiler, and the cover plate assembly is lifted by the winding machine, thereby reducing the steps of manual operation and ensuring the life safety of workers.

[0044] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. An emergency lifting device for an organic heat carrier boiler, characterized in that: It comprises a winding machine installed at the bottom of the boiler and a guide device installed on the boiler and located directly above the vent hole, wherein the steel wire rope of the winding machine is connected to the cover plate assembly of the vent hole through the guide device; The guide device comprises a base and a guide pulley installed on the base and located directly above the vent hole. The steel wire rope passes through the guide pulley and is vertically connected to the cover plate assembly.

2. The emergency lifting device for an organic heat carrier boiler according to claim 1, characterized in that: A lifting ring is fixedly installed at the center of gravity of the cover plate assembly, and the steel wire rope is connected to the lifting ring.

3. The emergency lifting device for an organic heat carrier boiler according to claim 1, characterized in that: A supporting pulley is also installed on the side of the base between the winding machine and the guide pulley. The sliding direction of the supporting pulley is consistent with the direction of the guide pulley, and the wire rope is supported on the supporting pulley.

4. The emergency lifting device for an organic heat carrier boiler according to claim 1, characterized in that: The winding machine comprises a fixed frame and a reel rotatably mounted on the fixed frame, a hand wheel is fixed on the reel, and a ratchet mechanism is arranged between the reel and the fixed frame.

5. The emergency lifting device for an organic heat carrier boiler according to claim 2, characterized in that: The cover plate assembly comprises a cover plate body, the cover plate body is buckled on the vent hole, and the bottom of the cover plate body is inserted into the vent hole; the cover plate body is provided with a plurality of positioning slideways on the circumference of the bottom thereof, and a central slideway is provided at the central axis position thereof, and the positioning slideway is connected to the central slideway; An elastic pin is installed in the positioning slideway for limiting sliding, and a first return spring is arranged between the elastic pin and the cover plate body. The first return spring retracts the elastic pin into the positioning slideway, and the inner end of the elastic pin extends into the central slideway. The end of the elastic pin extending into the central slideway is an arc-shaped surface; A lifting column is slidably installed in the central slideway in an upper and lower limited manner, and a second return spring is arranged between the lifting column and the cover plate body, and the second return spring drives the lifting column to slide downward and enables the elastic pin to overcome the extrusion force of the first return spring, so that the elastic pin is squeezed out of the central slideway and the outer end of the elastic pin extends out of the positioning slideway and is stuck on the inner side of the vent hole; The lifting ring is fixed at the upper center position of the lifting column.

6. The emergency lifting device for an organic heat carrier boiler according to claim 5, characterized in that: The guide device also includes a guide column fixed on the top of the boiler, and the cover plate body is slidably mounted on the guide column.

7. The emergency lifting device for an organic heat carrier boiler according to claim 6, characterized in that: A third return spring is arranged between the top of the guide column and the cover plate body.

8. The emergency lifting device for an organic heat carrier boiler according to claim 6, characterized in that: A plurality of guide posts are evenly arranged around the cover body.

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