A safety type explosion-proof compensator

Abstract

The present application relates to the technical fields of compensator, in particular to a safe anti-explosion compensator, which comprises two sections of steam conveying pipeline, flanges are fixedly connected to the outer sidewalls of the two sections of steam conveying pipeline, compensators are arranged on the flanges, a plurality of supports are fixedly connected to the outer sidewalls of the flanges, gas storage tanks are fixedly connected to the outer sidewalls of the supports, gas filling openings are arranged on the gas storage tanks, and supporting and cooling mechanisms are arranged on the outer sidewalls of the compensators. Through the arrangement of the flow tank and other mechanisms, when the compensator is expanded to approach the critical point during use, the flow tank sprays nitrogen onto the surface of the compensator, the compensator is cooled by the heat absorption of the expansion of the nitrogen, the temperature of the steam in the steam conveying pipeline is reduced when the temperature of the compensator is reduced, the pressure is correspondingly reduced when the temperature of the steam is reduced, and the continuous expansion of the compensator beyond the critical point is avoided to prevent explosion.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of compensators, in particular to a safe anti-explosion compensator. BACKGROUND

[0002] The pipeline compensator is also called an expander or expansion joint, and is mainly used for compensating thermal expansion and cold contraction of a pipeline caused by temperature change. The pipeline compensator includes a bellows, a short pipe, a support, and a flange. Stress must be considered in pipeline design, otherwise it may cause rupture of the pipeline and affect normal production.

[0003] As an important part of pipeline engineering, the compensator plays an important role in ensuring long-term normal operation of the pipeline. The pipeline compensator is often used in a steam pipeline. When the steam pipeline is transporting steam, if a problem occurs at the source of the steam, the steam temperature may abnormally rise, thereby increasing the air pressure of the entire pipeline and causing the compensator to expand. The existing compensator usually lacks a protection mechanism. When the air pressure increases and the compensator expands to a critical point, if the compensator is not supported and protected for pressure reduction, the compensator usually cannot withstand the large pressure and may explode, the safety factor is not high enough, and the service life of the entire compensator is affected. SUMMARY

[0004] The present application aims to provide a safe anti-explosion compensator to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a safe anti-explosion compensator, comprising two sections of steam pipelines, flanges fixedly connected to the outer sidewalls of the two sections of steam pipelines, a compensator arranged on the flanges, a plurality of supports fixedly connected to the outer sidewalls of the flanges, a gas storage tank fixedly connected to the outer sidewalls of the supports, a gas inlet arranged on the gas storage tank, a support and cooling mechanism arranged on the outer sidewall of the compensator, the support and cooling mechanism comprising a plurality of support bars arranged on the compensator, a lifting pipe arranged on each of the support bars, the lifting pipe being in communication with the inside of the compensator, and the lifting pipe being slidably penetrated into the inside of the gas storage tank at the end away from the compensator.

[0006] Preferably, side protrusions are fixedly connected to the two sides of the lifting pipe, support arms are rotatably connected to the inner sidewalls of the side protrusions, sliding rails are formed in the two sides of the support, a pusher is slidably connected in the sliding rails, the end of the support arm away from the side protrusion is rotatably connected to the outer sidewall of the pusher, a return spring is arranged in the sliding rail, and the end of the return spring is in contact with the outer wall of the pusher.

[0007] Preferably, both sides of the support are provided with a deceleration strip, both sides of the deceleration strip are fixedly connected with a left side plate and a right side plate, both sides of the pusher are fixedly connected with a mounting plate, the mounting plate is provided with an inclined slot, the inside of the mounting plate is slidably connected with a deceleration block, both sides of the deceleration block are fixedly connected with a return spring, the other end of the return spring is in contact with the outer wall of the mounting plate, the contact end of the deceleration block and the outer wall of the deceleration strip are both made of frosted material, and the deceleration block is provided with an inner magnetic block.

[0008] Preferably, the mounting plate is provided with a sliding frame, the sliding frame is internally penetrated by a transverse plate, the transverse plate is inlaid with a pressure magnetic block, and the magnetic pole of the pressure magnetic block is the same as that of the inner magnetic block.

[0009] Preferably, the inside of the gas storage tank is provided with a plurality of flow-through boxes, the inside of each of the plurality of flow-through boxes is provided with a through hole penetrating to the outside of the flow-through box, the inner side wall of each of the plurality of flow-through boxes is slidably connected with a baffle, both sides of the baffle are provided with a transverse moving piece, the end of the baffle is provided with a pressing spring, the other end of the pressing spring is in contact with the inner wall of the gas storage tank, and a plurality of gas outlets are formed in the outer side wall of the baffle.

[0010] Preferably, both sides of the gas storage tank are slidably provided with a jacking protrusion, one side of the jacking protrusion located outside the gas storage tank is provided with a contact plate, and the contact plate is located on the side of the inclined slot.

[0011] Preferably, the inside of the gas storage tank is provided with a plurality of flow-through boxes, the inside of each of the plurality of flow-through boxes is provided with a through hole penetrating to the outside of the flow-through box, the inner side wall of each of the plurality of flow-through boxes is slidably connected with a baffle, both sides of the baffle are provided with a transverse moving piece, the end of the baffle is provided with a pressing spring, the other end of the pressing spring is in contact with the inner wall of the gas storage tank, and a plurality of gas outlets are formed in the outer side wall of the baffle.

[0012] Preferably, the pressure relief mechanism comprises a pressure spring sleeved on the exhaust pipe, the inside of the exhaust pipe is provided with a through hole, the outer side wall of the exhaust pipe is provided with a moving magnetic block, the bottom of the gas storage tank is provided with a trigger magnet, and the magnetic pole of the trigger magnet is the same as that of the moving magnetic block.

[0013] Compared with the prior art, the present application has the following advantages:

[0014] Through the setting of the flow-through box and the like, when the compensator expands to near the critical point during use, the flow-through box sprays nitrogen gas to the surface of the compensator at this time, the nitrogen gas is expanded to absorb heat to cool the compensator, when the temperature of the compensator is reduced, the temperature of the steam in the steam pipeline is reduced, and when the temperature of the steam is reduced, the pressure is also correspondingly reduced, thereby avoiding the continuous expansion of the compensator beyond the critical point to cause explosion.

[0015] Through the setting of the exhaust pipe, if the steam transported in the steam pipeline is still high in pressure under the condition of temperature reduction and causes the compensator to continue to expand beyond the critical point, at this time, the exhaust pipe will discharge the steam transported in the compensator to release pressure, thereby avoiding the continuous expansion of the compensator, and through the setting of the supporting arm and the pushing piece and other mechanisms, when the compensator normally expands, the multiple supporting arms and the pushing piece will support the compensator laterally, which can make the stress of the compensator more uniform when it expands, and if the compensator expands to the critical point and the exhaust pipe releases pressure, the pushing piece will also delay the retraction speed of the compensator, so that the compensator will not quickly retract even when the internal pressure suddenly changes, and in the process of slow retraction, the wrinkles of the compensator can gradually flatten, and the fiber organization of the material can orderly restore to the original state, reducing the possibility of damage such as cracks and tears. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0017] Figure 2 It is a schematic diagram of the local structure of the present application Figure 1 ;

[0018] Figure 3 It is an enlarged view of A in Figure 2 ;

[0019] Figure 4 It is a schematic diagram of the side structure of the present application;

[0020] Figure 5 It is an enlarged view of B in Figure 4 ;

[0021] Figure 6 It is a schematic diagram of the local structure of the present application Figure 2 ;

[0022] Figure 7 It is a schematic diagram of the local structure of the present application Figure 3 ;

[0023] Figure 8 It is an enlarged view of C in Figure 7 .

[0024] In the drawings, the components represented by each reference numeral are listed as follows 1, steam pipeline; 2, compensator; 3, flange; 4, support; 5, gas storage tank; 6, gas inlet; 7, support bar; 8, jacking pipe; 9, side protrusion; 10, support arm; 11, jacking protrusion; 12, contact plate; 13, transverse moving piece; 14, baffle; 15, gas outlet hole; 16, through hole; 17, flow-through box; 18, pressing spring; 19, trigger magnet; 20, exhaust pipe; 21, through hole; 22, pressure spring; 23, moving magnetic block; 24, return spring; 25, sliding rail; 26, pushing piece; 27, left side plate; 28, deceleration bar; 29, mounting plate; 30, pressure magnetic block; 31, transverse moving plate; 32, right side plate; 33, chute; 34, deceleration block; 35, reset spring; 36, inner magnetic block. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0026] Embodiment one: please refer to Figure 1 - Figure 8 A safe explosion-proof compensator, comprising two steam pipelines 1, flanges 3 are fixedly connected to the outer side walls of the two steam pipelines 1, compensators 2 are arranged on the flanges 3, a plurality of supports 4 are fixedly connected to the outer side walls of the flanges 3, gas storage tanks 5 are fixedly connected to the outer side walls of the supports 4, gas inlets 6 are arranged on the gas storage tanks 5, a support cooling mechanism is arranged on the outer side wall of the compensator 2, the support cooling mechanism comprises a plurality of support bars 7 arranged on the compensator 2, jacking pipes 8 are arranged on the plurality of support bars 7, the jacking pipes 8 are communicated to the inside of the compensator 2, and the ends, away from the compensator 2, of the jacking pipes 8 slide through to the inside of the gas storage tank 5.

[0027] Side protrusions 9 are fixedly connected to the two sides of the jacking pipe 8, support arms 10 are rotatably connected to the inner side walls of the side protrusions 9, sliding rails 25 are formed in the two sides of the support 4, pushing pieces 26 are slidably connected in the sliding rails 25, the ends, away from the side protrusions 9, of the support arms 10 are rotatably connected to the outer side walls of the pushing pieces 26, return springs 24 are arranged in the sliding rails 25, and the ends of the return springs 24 are in contact with the outer walls of the pushing pieces 26.

[0028] The two sides of the support 4 are provided with a deceleration strip 28, the two sides of the deceleration strip 28 are fixedly connected with a left side plate 27 and a right side plate 32, the two sides of the pusher 26 are fixedly connected with a mounting plate 29, the mounting plate 29 is provided with an inclined slot 33, the inside of the mounting plate 29 is slidably connected with a deceleration block 34, the two sides of the deceleration block 34 are fixedly connected with a return spring 35, the other end of the return spring 35 is in contact with the outer wall of the mounting plate 29, the contact end of the deceleration block 34 and the outer wall of the deceleration strip 28 are both made of frosted material, and the deceleration block 34 is provided with an inner magnetic block 36.

[0029] When the steam in the steam pipeline 1 is heated and the pressure increases, the compensator 2 will expand, and the expansion of the compensator 2 can adapt to the lateral change through its elastic deformation, preventing the steam pipeline 1 from being damaged due to local excessive expansion (this is the prior art and will not be described in detail).

[0030] In this embodiment, when the compensator 2 expands laterally, it will push the jacking pipe 8 to move into the gas storage tank 5, when the jacking pipe 8 moves into the gas storage tank 5, it will make the two support arms 10 flip to the two sides, thereby pushing the pusher 26 to move in the sliding rail 25 and press the return spring 24, because the return spring 24 has a certain elastic force, when the return spring 24 is pressed, it will support the expanding compensator 2 laterally through its own elastic force, and the lateral support can make the stress of the compensator 2 more uniform when it expands, in the use process, if the temperature of the steam in the compensator 2 is relatively high, the expansion coefficient of the compensator 2 will also increase, at this time, the excessively expanded compensator 2 will push the jacking pipe 8 to move a greater distance into the gas storage tank 5, when the jacking pipe 8 moves a greater distance, the support arm 10 will also flip a greater degree, thereby making the pusher 26 move a greater distance to the outside of the sliding rail 25, when the pusher 26 moves a greater distance to the outside of the sliding rail 25, the inclined slot 33 on the mounting plate 29 will push the contact plate 12 together with the jacking protrusion 11 into the gas storage tank 5 through the inclined edge, when the jacking protrusion 11 is pushed to jacking, it will push the baffle 14 to the direction close to the pressing spring 18 along the inclined edge of the transverse moving piece 13, so that the gas outlet hole 15 originally located outside the flow tank 17 enters the flow tank 17, when the gas outlet hole 15 enters the flow tank 17, the low-temperature nitrogen gas stored in the gas storage tank 5 at this time will be blown to the surface of the compensator 2 through the gas outlet hole 15 and the through hole 16, when the nitrogen gas contacts the surface of the high-temperature compensator 2, it will expand, in the expansion process of the gas, the potential energy between the molecules increases, and the kinetic energy decreases, thereby reducing the temperature, after the low-temperature nitrogen gas contacts the air, it will absorb the heat in the air to achieve cooling, when the temperature of the compensator 2 decreases, it will exchange heat with the steam in the steam pipeline 1 to reduce the temperature, when the temperature of the steam decreases, the pressure will also decrease accordingly, avoiding the continuous expansion of the compensator 2 beyond the critical point to cause explosion.

[0031] Example two: please refer toFigure 1 Figure 8 The embodiment further illustrates the first embodiment, and the mounting plate 29 is provided with a sliding frame, the sliding frame is internally penetrated by a transverse plate 31, the transverse plate 31 is internally inlaid with a pressure magnetic block 30, and the magnetic poles of the pressure magnetic block 30 are the same as those of an inner magnetic block 36.

[0032] The gas storage tank 5 is internally provided with a plurality of flow-through tanks 17, the plurality of flow-through tanks 17 are internally provided with penetrating holes 16 penetrating to the outside of the flow-through tanks 17, the inner side walls of the plurality of flow-through tanks 17 are jointly and slidably connected with a baffle 14, the baffle 14 is provided with transverse moving pieces 13 on both sides, the baffle 14 is provided with a pressing spring 18 at the end, the other end of the pressing spring 18 is in contact with the inner wall of the gas storage tank 5, and the outer side wall of the baffle 14 is provided with a plurality of gas outlet holes 15.

[0033] The gas storage tank 5 is provided with a jacking lug 11 penetrating and sliding on both sides, the jacking lug 11 is provided with a contact plate 12 on one side outside the gas storage tank 5, and the contact plate 12 is located at the front side of the inclined chute 33.

[0034] The inner side wall of the jacking pipe 8 is slidably connected with an exhaust pipe 20, the exhaust pipe 20 is provided in a sealed manner on one side of the inner wall of the jacking pipe 8, and the exhaust pipe 20 is provided with a pressure relief mechanism.

[0035] The pressure relief mechanism comprises a pressure spring 22 sleeved on the exhaust pipe 20, the inner part of the exhaust pipe 20 is provided with a through hole 21, the outer side wall of the exhaust pipe 20 is provided with a moving magnetic block 23, the bottom of the gas storage tank 5 is provided with a trigger magnetic block 19, and the magnetic poles of the trigger magnetic block 19 are the same as those of the moving magnetic block 23.

[0036] ​In this embodiment, if the transport source of the steam pipeline 1 fails during use, a large amount of steam rushes into the compensator 2, and the temperature drop still cannot lower the steam pressure in the steam pipeline 1, so that the compensator 2 continues to expand beyond the critical point. At this time, the jacking pipe 8 will move a large distance into the gas storage tank 5, until the moving magnet block 23 is located at the side of the trigger magnet 19. When the moving magnet block 23 is located at the side of the trigger magnet 19, the exhaust pipe 20 will move into the jacking pipe 8 under the repulsive magnetic force between the two, so that the through hole 21 originally located outside the jacking pipe 8 enters the jacking pipe 8. Since the jacking pipe 8 and the compensator 2 are in communication with each other, when the through hole 21 enters the jacking pipe 8, the steam in the compensator 2 will enter the exhaust pipe 20 through the through hole 21, and finally be discharged outward through the exhaust pipe 20, thereby depressurizing the compensator 2 to prevent the compensator 2 from exploding due to over-expansion. When the jacking pipe 8 moves into the gas storage tank 5, the moving magnet block 23 is located at the side of the trigger magnet 19, and the jacking pipe 8 moves a large distance upward, the two support arms 10 will continue to flip to the maximum angle on both sides. When the support arms 10 on both sides are flipped to the maximum angle, the pusher 26 will move to the outermost side of the slide rail 25. When the pusher 26 moves to the outermost side of the slide rail 25, the mounting plate 29 on the side will also move outward synchronously. When the mounting plate 29 moves to the outermost side of the slide rail 25 with the pusher 26, the transverse plate 31 will contact the left plate 27, and under the push of the left plate 27, the transverse plate 31 will move towards the right plate 32. When the transverse plate 31 moves towards the right plate 32, the pressure magnet block 30 will move to the side of the inner magnet block 36, and under the repulsive magnetic force, the deceleration block 34 will contact the deceleration strip 28 by overcoming the elastic force of the return spring 35. Since the contact surfaces of the deceleration block 34 and the deceleration strip 28 are both made of abrasive material, friction will occur when they come into contact. When the steam in the compensator 2 is depressurized, the pressure in the compensator 2 will decrease rapidly, and under the elastic force of the compensator 2 itself, the compensator 2 will retract. When the compensator 2 retracts, the jacking pipe 8 will move towards the outside of the gas storage tank 5, and correspondingly, the two support arms 10 will also flip inward to drive the pusher 26 to move to the middle part of the slide rail 25. Under the above principle, when the deceleration block 34 and the deceleration strip 28 come into contact, friction will occur. At this time, the return speed of the pusher 26 will slow down. When the pusher 26 slowly returns to the original position, the surface of the compensator 2 will be retracted and slowed down by the support arms 10, the jacking pipe 8 and the support strip 7. During the slow retraction process of the compensator 2, the wrinkles can gradually flatten, the fiber organization of the material can restore to its original state in an orderly manner, the possibility of damage such as cracking and tearing can be reduced, and the service life of the compensator 2 can be increased.

[0037] It should be noted that when the pusher 26 slowly moves back to the original position, the right side of the transverse plate 31 will contact the right plate 32, and under the push of the right plate 32, the pressure magnetic block 30 will be pushed away from the front side of the inner magnetic block 36 (see Figure 8 When the pressure magnetic block 30 is away from the inner magnetic block 36, the distance between them is far, and the magnetic force disappears. Under the elastic force of the reset spring 35, the deceleration block 34 will return to the original position. When the deceleration block 34 returns to the original position, it will no longer contact the deceleration strip 28. In this way, when the compensator 2 does not expand beyond the critical point, the entire supporting arm 10 and the jacking pipe 8 will only provide lateral support to the compensator 2 and will not slow down the retraction. Because when the compensator 2 does not expand beyond the critical point, it does not need to be depressurized, and under the support of the pressure inside, the retraction speed is slow, and there is no need to slow down the retraction. If the compensator 2 is depressurized, the instantaneous loss of pressure will cause the compensator 2 to rebound quickly, and when the compensator 2 rebounds quickly, a large reverse impact force will be generated inside, which can easily cause the compensator 2 to be excessively wrinkled or deformed.

[0038] It should be noted that the supporting strip 7 is made of rubber and has good elasticity. When the compensator 2 expands, the supporting strip 7 can also be bent well and tightly adhere to the surface of the compensator 2.

[0039] It should be noted that in this document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0040] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A safety type explosion-proof compensator comprising two steam conveying pipes (1), characterized in that, Two said steam pipeline (1) outside wall are fixedly connected with flange (3), the flange (3) is provided with compensator (2), the outer side wall of flange (3) is fixedly connected with multiple supports (4), the outer side wall of support (4) is fixedly connected with gas storage tank (5), the gas storage tank (5) is provided with gas inlet (6), the outer side wall of compensator (2) is provided with support cooling mechanism, the support cooling mechanism includes multiple support bars (7) arranged on compensator (2), multiple support bars (7) are all provided with jacking pipe (8), the jacking pipe (8) is communicated to the inside of compensator (2), the one end of jacking pipe (8) away from compensator (2) is slidably penetrated into the inside of gas storage tank (5); The both sides of jacking pipe (8) are fixedly connected with side lugs (9), the inner side wall of side lug (9) is rotatably connected with support arm (10), the both sides of support (4) are provided with slide rail (25), the inside of slide rail (25) is slidably connected with pusher (26), the one end of support arm (10) away from side lug (9) is rotatably connected on the outer side wall of pusher (26), the inside of slide rail (25) is provided with return spring (24), the end of return spring (24) is in contact with the outer wall of pusher (26); The both sides of support (4) are provided with deceleration strip (28), the both sides of deceleration strip (28) are fixedly connected with left side plate (27) and right side plate (32), the both sides of pusher (26) are fixedly connected with mounting plate (29), the mounting plate (29) is provided with inclined slot (33), the inside of mounting plate (29) is slidably connected with deceleration block (34), the both sides of deceleration block (34) are fixedly connected with reset spring (35), the other end of reset spring (35) is in contact with the outer wall of mounting plate (29), the contact end of deceleration block (34) and the outer wall of deceleration strip (28) are all made of frosted material, the deceleration block (34) is provided with inner magnetic block (36); The mounting plate (29) is provided with sliding frame, the inside of sliding frame is slidably penetrated with horizontal moving plate (31), the inside of horizontal moving plate (31) is embedded with pressure magnetic block (30), the magnetic pole of pressure magnetic block (30) is same with the magnetic pole of inner magnetic block (36).

2. A safety type explosion-proof compensator according to claim 1, characterized in that: The inside of gas storage tank (5) is provided with multiple flow-through boxes (17), the inside of multiple flow-through boxes (17) is all provided with through hole (16), the through hole (16) is penetrated to the outside of flow-through box (17), the inner side wall of multiple flow-through boxes (17) is slidably connected with baffle (14), the both sides of baffle (14) are provided with horizontal moving element (13), the end of baffle (14) is provided with pressing spring (18), the other end of pressing spring (18) is in contact with the inner wall of gas storage tank (5), the outer side wall of baffle (14) is provided with multiple gas outlet holes (15).

3. A safety type explosion-proof compensator according to claim 1, characterized in that: Both sides of the gas tank (5) are provided with jacking blocks (11) penetratingly sliding, one side of the jacking blocks (11) located outside the gas tank (5) is provided with a contact plate (12), and the contact plate (12) is located at the front side of the chute (33).

4. A safety explosion-proof compensator according to claim 1, characterized in that: The inner side wall of the jacking pipe (8) is slidingly connected with an exhaust pipe (20), one side of the exhaust pipe (20) located inside the jacking pipe (8) is provided with a sealing structure, and the exhaust pipe (20) is provided with a pressure relief mechanism.

5. A safety explosion-proof compensator according to claim 4, characterized in that: The pressure relief mechanism comprises a pressure spring (22) sleeved on the exhaust pipe (20), a through hole (21) is formed in the inside of the exhaust pipe (20), a moving magnetic block (23) is arranged on the outer side wall of the exhaust pipe (20), the bottom of the gas tank (5) is provided with a trigger magnet (19), and the magnetic pole of the trigger magnet (19) is same as that of the moving magnetic block (23).

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