Steam leakage detection device for tubular steam generator

Abstract

The utility model discloses a steam leakage detection device for a tubular steam generator. The steam leakage detection device comprises a tubular steam generator body, a steam discharge pipe, a fixed pipe, a detection pipe, a sealing structure, a detection structure and an alarm structure, a steam discharge pipe is fixedly installed at the top of the tubular steam generator body, the fixed pipe is fixedly connected to one side of the steam discharge pipe, the detection pipe is installed in the fixed pipe, the sealing structure is arranged between the fixed pipe and the detection pipe, the detection structure is arranged on the side, away from the fixed pipe, of the detection pipe, and the alarm structure is arranged outside the detection pipe. Compared with the prior art, the steam leakage prevention device has the advantages that the steam pressure in the steam discharge pipe can be monitored in real time, an alarm can be triggered in time to warn an operator when steam leakage occurs, resource waste is avoided, and damage to surrounding equipment and personnel caused by leaked steam is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of steam leakage detection, in particular to a steam leakage detection device for a cross-flow steam generator. Background Technique

[0002] The cross-flow steam generator is a commonly used steam generating device, mainly used to generate high-temperature and high-pressure steam. Its working principle is to heat water to the boiling point and convert it into steam, and then continuously output the steam through pipelines, which can be used for various industrial and commercial applications.

[0003] The patent document with the publication number of CN220750099U discloses a cross-flow fuel gas steam generator, including a cross-flow fuel gas steam generator main body. The cross-flow fuel gas steam generator main body is connected with a first exhaust pipe, the first exhaust pipe is connected with an operation block, the operation block is connected with a second exhaust pipe, the operation block is connected with a filter screen, and the operation block is connected with a striking mechanism. The striking mechanism includes a cross plate, the cross plate is connected with a traction rod, the traction rod is connected with a striking block, the traction rod is connected with a push plate, and the traction rod is connected with a telescopic spring. The above-mentioned cross-flow fuel gas steam generator solves the problem that a large amount of dust particles and water vapor are contained in the existing flue gas. When the flue gas is filtered by the filter screen, it is easy to cause the dust particles and water vapor to adhere to the filter screen, and the filter holes on the filter screen are prone to form dirt and block the filter holes on the filter screen. However, the existing technology still has defects:

[0004] Although the existing steam generator is equipped with a pressure gauge, when steam leaks, it cannot give an alarm immediately, resulting in that the operator cannot immediately close the steam generator, which is easy to cause waste of resources, and the leaked steam will also damage the surrounding equipment and personnel. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is to overcome the above defects and provide a steam leakage detection device for a cross-flow steam generator.

[0006] To solve the above technical problem, the technical solution provided by the utility model is: a steam leakage detection device for a cross-flow steam generator, including:

[0007] A cross-flow steam generator main body, on the top of which a steam discharge pipe is fixedly installed;

[0008] A fixed pipe, which is fixedly connected to one side of the steam discharge pipe;

[0009] A detection pipe, which is installed inside the fixed pipe;

[0010] Sealing structure, the sealing structure is arranged between the fixed pipe and the detection pipe. The sealing structure includes a fixing ring fixedly connected to one side of the detection pipe. On the side of the fixing ring close to the fixed pipe, a first rubber sealing ring is fixedly connected. On the inner wall of the fixed pipe close to the steam discharge pipe, a pressing ring is fixedly connected.

[0011] Detection structure, the detection structure is arranged on the side of the detection pipe away from the fixed pipe. The detection structure includes a piston plate slidably connected inside the detection pipe. On the outside of the piston plate, a second rubber sealing ring is fixedly connected. The second rubber sealing ring is in contact with the inner wall of the detection pipe. On the side of the detection pipe away from the fixed pipe, a through hole is opened. A connecting rod is inserted into the through hole. One end of the connecting rod is fixedly connected to the piston plate, and the other end of the connecting rod is fixedly connected to a pressing plate. A spring is fixedly sleeved on the outside of the connecting rod between the piston plate and the inner wall of the detection pipe.

[0012] Alarm structure, the alarm structure is arranged outside the detection pipe. The alarm structure includes a contact switch fixedly installed on the outer wall of the detection pipe on the side away from the fixed pipe. The contact switch is fixedly connected to an electric wire, and the other end of the electric wire is fixedly connected to an alarm. The alarm is fixedly installed on the top of the cross-flow steam generator body.

[0013] Further, an internal thread is provided inside the fixed pipe, and the internal thread is arranged on the side of the pressing ring away from the steam discharge pipe.

[0014] Further, an external thread is provided on the outside of one side of the detection pipe, and the external thread is arranged on the side of the fixing ring away from the first rubber sealing ring. The detection pipe is threadedly connected to the inside of the fixed pipe through the external thread.

[0015] Further, the inner diameter of the detection pipe is equal to the inner diameter of the pressing ring, and the sides of the detection pipe and the pressing ring facing each other are in contact with each other.

[0016] Further, the outer diameter of the fixed pipe is equal to the outer diameter of the fixing ring, and the sides of the first rubber sealing ring and the fixed pipe facing each other are in contact with each other.

[0017] The advantages of the present utility model compared with the prior art are as follows: Through the settings of the sealing structure, detection structure and alarm structure, when the cross-flow steam generator body operates normally, the output steam pressure is stable. The generated steam enters the detection tube through the fixed tube, pushing the piston plate to slide horizontally along the inner wall of the detection tube and compressing the spring. The thrust generated by the steam pressure balances with the elastic force of the spring. At this time, the piston plate drives the pressing plate through the connecting rod to be relatively stationary and keep non-contact with the contact switch. When steam leaks, the air pressure in the detection tube decreases. Under the action of the elastic force of the spring, the piston plate drives the connecting rod and the pressing plate to quickly move towards the fixed tube direction, so that the pressing plate contacts the contact switch and activates the contact switch, and then the alarm is turned on for sound and light alarm, warning the operator to promptly turn off the cross-flow steam generator body. Thus, when steam leakage occurs, the alarm can be triggered in time to warn the operator, avoiding resource waste and damage to surrounding equipment and personnel caused by the leaked steam, and improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional view of a steam leakage detection device for a cross-flow steam generator of the present utility model Figure 1 .

[0019] Figure 2 is a three-dimensional view of a steam leakage detection device for a cross-flow steam generator of the present utility model Figure 2 .

[0020] Figure 3 is a sectional view of a steam leakage detection device for a cross-flow steam generator of the present utility model.

[0021] Figure 4 is a steam leakage detection device for a cross-flow steam generator of the present utility model Figure 2 enlarged structure diagram at position A.

[0022] Figure 5 is a steam leakage detection device for a cross-flow steam generator of the present utility model Figure 3 enlarged structure diagram at position B.

[0023] Reference numerals in the figures: 1, cross-flow steam generator body; 2, steam discharge pipe; 3, fixed pipe; 4, detection pipe; 5, sealing structure; 51, fixed ring; 52, rubber sealing ring I; 53, pressing ring; 6, detection structure; 61, piston plate; 62, rubber sealing ring II; 63, connecting rod; 64, spring; 65, pressing plate; 7, alarm structure; 71, contact switch; 72, electric wire; 73, alarm. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Exemplary embodiments will be described in detail herein, and examples thereof are shown in the accompanying drawings. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. On the contrary, they are merely examples of devices consistent with some aspects of the present disclosure as detailed in the appended claims.

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] As Figures 1 to 5 shown, this embodiment provides a steam leakage detection device for a tubular steam generator, including a tubular steam generator body 1. A steam discharge pipe 2 is fixedly installed at the top of the tubular steam generator body 1. A fixed pipe 3 is fixedly connected to one side of the steam discharge pipe 2. A detection pipe 4 is installed inside the fixed pipe 3. Internal threads are provided on the inner side of the fixed pipe 3, and external threads are provided on the outer side of one side of the detection pipe 4. The detection pipe 4 is threadedly connected to the inner side of the fixed pipe 3 through the external threads, facilitating the quick installation and disassembly of the detection pipe 4.

[0027] A sealing structure 5 is provided between the fixed pipe 3 and the detection pipe 4. The sealing structure 5 includes a fixed ring 51 fixedly connected to one side of the detection pipe 4. A first rubber sealing ring 52 is fixedly connected to the side of the fixed ring 51 close to the fixed pipe 3. A tightening ring 53 is fixedly connected to the inner wall of the fixed pipe 3 close to the steam discharge pipe 2. The external threads are provided on the side of the fixed ring 51 away from the first rubber sealing ring 52. The inner diameter of the detection pipe 4 is equal to the inner diameter of the tightening ring 53. The side of the detection pipe 4 opposite to the tightening ring 53 is in mutual contact. The outer diameter of the fixed pipe 3 is equal to the outer diameter of the fixed ring 51. The side of the first rubber sealing ring 52 opposite to the fixed pipe 3 is in mutual contact. Thus, it is convenient for the quick sealed installation of the detection pipe 4, and the connection is tight, and steam will not leak.

[0028] On the side of the detection tube 4 away from the fixed tube 3, there is a detection structure 6. The detection structure 6 includes a piston plate 61 slidably connected inside the detection tube 4. Outside the piston plate 61, there is a second rubber sealing ring 62 fixedly connected. The second rubber sealing ring 62 fits against the inner wall of the detection tube 4. On the side of the detection tube 4 away from the fixed tube 3, there is a through hole, and a connecting rod 63 is inserted through the through hole. One end of the connecting rod 63 is fixedly connected to the piston plate 61, and the other end of the connecting rod 63 is fixedly connected to a pressing plate 65. Outside the connecting rod 63 between the piston plate 61 and the inner wall of the detection tube 4, there is a spring 64 fixedly sleeved. When the steam pressure output during the normal operation of the once-through steam generator body 1 is stable, the steam enters the detection tube 4 through the fixed tube 3, pushing the piston plate 61 to slide horizontally along the inner wall of the detection tube 4. At this time, under the push of the steam, the piston plate 61 compresses the spring 64, and the thrust generated by the air pressure is balanced with the elastic force of the spring 64. At this time, the piston plate 61 drives the pressing plate 65 to be relatively stationary through the connecting rod 63.

[0029] Outside the detection tube 4, there is an alarm structure 7. The alarm structure 7 includes a contact switch 71 fixedly installed on the outer wall of the side of the detection tube 4 away from the fixed tube 3. The contact switch 71 is fixedly connected with a wire 72, and the other end of the wire 72 is fixedly connected with an alarm 73. The alarm 73 is fixedly installed on the top of the once-through steam generator body 1. When steam leaks, the air pressure in the steam discharge pipe 2, the fixed tube 3, and the detection tube 4 decreases, thereby reducing the thrust of the steam on the piston plate 61. Under the elastic force of the spring 64, the piston plate 61 drives the connecting rod 63 and the pressing plate 65 to quickly move towards the fixed tube 3 direction, so that the pressing plate 65 contacts the contact switch 71 and activates the contact switch 71, thereby turning on the alarm 73.

[0030] When the utility model is specifically implemented, during use, first rotate and install the detection tube 4 on the fixed tube 3, and then start the once-through steam generator body 1. When the once-through steam generator body 1 is operating normally, the output steam pressure is stable, and the generated steam is discharged through the steam discharge pipe 2. The steam enters the detection tube 4 through the fixed tube 3, pushing the piston plate 61 to slide horizontally along the inner wall of the detection tube 4. At this time, under the push of the steam, the piston plate 61 compresses the spring 64, and the thrust generated by the air pressure is balanced with the elastic force of the spring 64. At this time, the piston plate 61 drives the pressing plate 65 through the connecting rod 63 to be relatively stationary and keep non-contact with the contact switch 71. When steam leaks, the air pressure in the steam discharge pipe 2, the fixed tube 3, and the detection tube 4 decreases. Under the elastic force of the spring 64, the piston plate 61 drives the connecting rod 63 and the pressing plate 65 to quickly move towards the fixed tube 3 direction, so that the pressing plate 65 contacts the contact switch 71 and activates the contact switch 71, thereby realizing the activation of the alarm 73. The alarm 73 gives an audible and visual alarm, warning the operator to promptly turn off the once-through steam generator body 1, so as to facilitate the real-time monitoring of the steam pressure in the steam discharge pipe 2. When steam leakage occurs, an alarm can be triggered in time to warn the operator, avoiding resource waste and damage to surrounding equipment and personnel caused by the leaked steam.

[0031] The electrical components appearing in this article are all electrically connected to the external main controller and 220V mains power. And the main controller can be a conventional known device such as a computer for control. The detailed descriptions of known functions and known components are omitted in the specific implementation manners of the present disclosure. To ensure the compatibility of the device, the operation means adopted are consistent with the parameters of market instruments.

[0032] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steam leakage detection device for a tubular steam generator, characterized in that: Including: A once-through steam generator body (1), on top of which a steam discharge pipe (2) is fixedly installed; A fixed pipe (3), which is fixedly connected to one side of the steam discharge pipe (2); A detection pipe (4), which is installed inside the fixed pipe (3); A sealing structure (5), which is arranged between the fixed pipe (3) and the detection pipe (4). The sealing structure (5) includes a fixed ring (51) fixedly connected to one side of the detection pipe (4). On the side of the fixed ring (51) close to the fixed pipe (3), a first rubber sealing ring (52) is fixedly connected. On the inner wall of the fixed pipe (3) on the side close to the steam discharge pipe (2), a pressing ring (53) is fixedly connected; A detection structure (6), which is arranged on the side of the detection pipe (4) away from the fixed pipe (3). The detection structure (6) includes a piston plate (61) slidably connected inside the detection pipe (4). On the outside of the piston plate (61), a second rubber sealing ring (62) is fixedly connected. The second rubber sealing ring (62) is in contact with the inner wall of the detection pipe (4). On the side of the detection pipe (4) away from the fixed pipe (3), a through hole is provided, and a connecting rod (63) is inserted through the through hole. One end of the connecting rod (63) is fixedly connected to the piston plate (61), and the other end of the connecting rod (63) is fixedly connected to a pressing plate (65). On the outside of the connecting rod (63) between the piston plate (61) and the inner wall of the detection pipe (4), a spring (64) is fixedly sleeved; An alarm structure (7), which is arranged outside the detection pipe (4). The alarm structure (7) includes a contact switch (71) fixedly installed on the outer wall of the detection pipe (4) on the side away from the fixed pipe (3). The contact switch (71) is fixedly connected to an electric wire (72), and the other end of the electric wire (72) is fixedly connected to an alarm (73). The alarm (73) is fixedly installed on top of the once-through steam generator body (1).

2. The steam leakage detection device for a tubular steam generator according to claim 1, characterized in that: Internal threads are provided inside the fixed pipe (3), and the internal threads are arranged on the side of the pressing ring (53) away from the steam discharge pipe (2).

3. The steam leakage detection device for a tubular steam generator according to claim 2, characterized in that: External threads are provided on the outside of one side of the detection pipe (4), and the external threads are arranged on the side of the fixed ring (51) away from the first rubber sealing ring (52). The detection pipe (4) is threadedly connected to the inside of the fixed pipe (3) through the external threads.

4. A steam leakage detection device for a tubular steam generator according to claim 1, characterized in that: The inner diameter of the detection pipe (4) is equal to the inner diameter of the pressing ring (53), and the side of the detection pipe (4) opposite to the pressing ring (53) is in mutual contact.

5. The steam leakage detection device for a cross-flow steam generator according to claim 1, characterized in that: The outer diameter of the fixed pipe (3) is equal to the outer diameter of the fixed ring (51), and the side of the first rubber sealing ring (52) opposite to the fixed pipe (3) is in mutual contact.

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