Suspension bridge main cable dehumidification system with higher stability

Abstract

The application provides a suspension bridge main cable dehumidification system with higher stability, comprising: an air filtering device, a dehumidification device and a pressurizing device, the dehumidification device comprises a first rotary dehumidifier and a second rotary dehumidifier, the pressurizing device comprises a first high-pressure fan and a second high-pressure fan, the air exhaust pipes on the air filtering device are connected with the air inlet pipes on the first rotary dehumidifier and the second rotary dehumidifier respectively, the air exhaust pipe on the first rotary dehumidifier is connected with the air inlet pipe on the first high-pressure fan, the air exhaust pipe on the second rotary dehumidifier is connected with the air inlet pipe on the second high-pressure fan, and the air exhaust pipes of the first high-pressure fan and the second high-pressure fan are connected with the air inlet clamps arranged on the main cable; a first electric valve is arranged on the air inlet pipe of the first rotary dehumidifier, the application has reasonable structure, can perform dehumidification operation in time when damage maintenance is performed, improves the service life of the main cable, the stability and effectiveness of the system are high, and the dehumidification effect is enhanced.

Description

TECHNICAL FIELD

[0001] The application relates to a main cable dehumidification system, in particular to a main cable dehumidification system with high stability for a suspension bridge. BACKGROUND

[0002] The main cable is one of the most important force members of a suspension bridge and is called a lifeline. The main cable is exposed to the atmosphere for a long time and is subjected to the erosion of various adverse environments. Since the main cable is a non-replaceable component, the service life of the main cable directly determines the service life of the suspension bridge. When the main cable is dehumidified, a main cable dehumidification system is needed.

[0003] In the prior art, the main cable dehumidification system is prone to damage of the internal equipment due to long-time operation when in use, and the dehumidification operation cannot be performed in time during the damage and maintenance, thereby reducing the service life of the main cable. Moreover, long-time operation of the internal equipment of the dehumidification system can reduce the stability and effectiveness of the system, thereby affecting the dehumidification effect. Therefore, there is an urgent need for a main cable dehumidification system with high stability for a suspension bridge to solve the above problems. SUMMARY

[0004] In view of the deficiencies in the prior art, the application aims to provide a main cable dehumidification system with high stability for a suspension bridge to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the application provides a main cable dehumidification system with high stability for a suspension bridge, comprising:

[0006] The air filtering device is used for filtering the inhaled air and conveying the filtered air to the dehumidification device for drying, the dehumidification device is used for conveying the dried gas to the inside of the booster device, and the booster device is used for boosting the dried gas and conveying the dried gas to the air inlet clamp arranged on the main cable and making the dried gas absorb moisture and dry the main cable and finally flow out from the air outlet clamp arranged on the main cable.

[0007] The dehumidifying device comprises a first rotary dehumidifier and a second rotary dehumidifier, the pressurizing device comprises a first high-pressure fan and a second high-pressure fan, the air exhaust pipe of the air filtering device is connected to the air inlet pipe of the first rotary dehumidifier and the air inlet pipe of the second rotary dehumidifier respectively, the air exhaust pipe of the first rotary dehumidifier is connected to the air inlet pipe of the first high-pressure fan through the first conduit, the air exhaust pipe of the second rotary dehumidifier is connected to the air inlet pipe of the second high-pressure fan through the second conduit, the first conduit and the second conduit are connected through the connecting pipe, the third electric valve is arranged on the connecting pipe, the U-shaped pipe is arranged between the air exhaust pipe of the first high-pressure fan and the air exhaust pipe of the second high-pressure fan, the communication pipe is arranged between the middle position of the U-shaped pipe and the air inlet clamp arranged on the main cable, the first time relay is arranged on the first conduit, and the second time relay is arranged on the second conduit.

[0008] The first electric valve is arranged on the air inlet pipe of the first rotary dehumidifier, and the second electric valve is arranged on the air inlet pipe of the second rotary dehumidifier.

[0009] The first time relay is connected in series in the circuit of the first electric valve, the first rotary dehumidifier and the first high-pressure fan, the second time relay is connected in series in the circuit of the second electric valve, the second rotary dehumidifier and the second high-pressure fan, the circuit of the first electric valve, the first rotary dehumidifier and the first high-pressure fan is connected in parallel with the circuit of the second electric valve, the second rotary dehumidifier and the second high-pressure fan, and the time difference is arranged between the first time relay and the second time relay.

[0010] The dehumidifying device is provided with a control assembly for alternately dehumidifying the main cable by working the first electric valve, the first rotary dehumidifier and the first high-pressure fan or working the second electric valve, the second rotary dehumidifier and the second high-pressure fan.

[0011] Further, the first conduit side wall, the second conduit side wall and the two end side walls of the U-shaped pipe are all provided with the one-way valve.

[0012] Further, the communication pipe is provided with the normally open electric valve, the exhaust clamp bottom is provided with the air outlet pipe, the air outlet pipe is provided with the normally closed electric valve, and the air inlet clamp and the exhaust clamp are both provided with the humidity sensor.

[0013] Further, the control assembly comprises a PLC controller, the input end of the PLC controller is provided with an A / D converter, the output end of the PLC controller is provided with a D / A converter, the humidity sensor is electrically connected with the A / D converter, and the air filtering device, the normally open electric valve and the normally closed electric valve are all electrically connected with the D / A converter.

[0014] Further, the time difference of the first time relay and the second time relay is 1-2 seconds.

[0015] According to the suspension bridge main cable dehumidifying system with higher stability,

[0016] By making the first electric valve, the first rotary dehumidifier and the first high pressure fan work or making the second electric valve, the second rotary dehumidifier and the second high pressure fan work alternately, thereby avoiding damage caused by long time work, and when the first rotary dehumidifier and the first high pressure fan work to dehumidify and damage occurs, the second rotary dehumidifier and the second high pressure fan can be used to work to dehumidify, thereby being able to dehumidify in time, improving the service life of the main cable, and alternately drying the main cable, which can avoid the decrease of the stability and effectiveness of the system caused by long time operation of the internal equipment of the dehumidification system, thereby ensuring the stability and effectiveness of the operation and improving the dehumidification effect.

[0017] By using the time difference set between the first time relay and the second time relay, thereby making the circuit of the first electric valve, the first rotary dehumidifier and the first high pressure fan connected through the first time relay or making the circuit of the second electric valve, the second rotary dehumidifier and the second high pressure fan connected through the second time relay, thereby alternately providing dry gas to the air inlet clamp, thereby alternately drying the main cable, which can avoid the decrease of the stability and effectiveness of the system caused by long time operation of the internal equipment of the dehumidification system, thereby affecting the dehumidification effect. BRIEF DESCRIPTION OF DRAWINGS

[0018] Other features, objects and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments, read in conjunction with the accompanying drawings:

[0019] Figure 1 It is a structural schematic diagram of a higher stability suspension bridge main cable dehumidification system according to an embodiment of the present application;

[0020] Figure 2 It is a schematic diagram of a higher stability suspension bridge main cable dehumidification system according to an embodiment of the present application;

[0021] Figure 3 It is a control system schematic diagram of the first time relay in a higher stability suspension bridge main cable dehumidification system according to an embodiment of the present application;

[0022] Figure 4 It is a control system schematic diagram of the second time relay in a higher stability suspension bridge main cable dehumidification system according to an embodiment of the present application;

[0023] In the figure: 1, first conduit; 2, second conduit; 3, U-shaped pipe; 4, communication pipe; 41, normally open electric valve; 5, air inlet clamp; 6, air outlet clamp; 61, air outlet pipe; 62, normally closed electric valve; 7, main cable; 8, humidity sensor; 9, first time relay; 10, second time relay; 11, first electric valve; 12, second electric valve; 13, adapter pipe; 14, third electric valve. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, purposes and effects realized by the present application easy to understand, the present application is further described below in conjunction with specific embodiments.

[0025] As shown in Figure 1 The present application provides a technical solution: a higher stability of suspension bridge main cable dehumidification system, comprising:

[0026] Air filter device, dehumidification device and booster device, the air filter device is used for filtering the inhaled air and conveying the filtered air to the dehumidification device for drying, the dehumidification device is used for conveying the dried air to the booster device, the booster device is used for conveying the dried air to the air inlet clamp 5 arranged on the main cable 7 and making the dried air dry the main cable 7, and finally the dried air flows out from the air outlet clamp 6 arranged on the main cable 7;

[0027] The dehumidification device comprises a first rotary dehumidifier and a second rotary dehumidifier, the booster device comprises a first high-pressure fan and a second high-pressure fan, the air outlet pipe of the air filter device is connected with the air inlet pipe of the first rotary dehumidifier and the second rotary dehumidifier respectively, the air outlet pipe of the first rotary dehumidifier is connected with the air inlet pipe of the first high-pressure fan, the air outlet pipe of the second rotary dehumidifier is connected with the air inlet pipe of the second high-pressure fan, and the air outlet pipes of the first high-pressure fan and the second high-pressure fan are connected with the air inlet clamp 5 arranged on the main cable 7;

[0028] The air inlet pipe of the first rotary dehumidifier is provided with a first electric valve 11, and the air inlet pipe of the second rotary dehumidifier is provided with a second electric valve 12.

[0029] The dehumidification device is provided with a control assembly for working the first electric valve 11, the first rotary dehumidifier and the first high-pressure fan or working the second electric valve 12, the second rotary dehumidifier and the second high-pressure fan to alternately dehumidify the main cable 7. By using the control assembly, the first electric valve 11, the first rotary dehumidifier and the first high-pressure fan or the second electric valve 12, the second rotary dehumidifier and the second high-pressure fan can work alternately, so as to avoid damage caused by long-time work. When the first electric valve 11, the first rotary dehumidifier and the first high-pressure fan are working and dehumidification fails, the second electric valve 12, the second rotary dehumidifier and the second high-pressure fan can be used for dehumidification, so as to timely dehumidify and improve the service life of the main cable 7. The main cable 7 is dried alternately, which can avoid the decrease of the stability and effectiveness of the system caused by long-time operation of the equipment in the dehumidification system, thereby ensuring the stability and effectiveness of the operation, improving the dehumidification effect, and the first electric valve 11 and the second electric valve 12 are both two-position two-way electric valves.

[0030] With reference to Figure 1 , the first rotary dehumidifier is provided with a first conduit 1 between the exhaust pipe and the air inlet pipe of the first high-pressure fan, the second rotary dehumidifier is provided with a second conduit 2 between the exhaust pipe and the air inlet pipe of the second high-pressure fan, and the first high-pressure fan is provided with a U-shaped pipe 3 between the exhaust pipe and the exhaust pipe of the second high-pressure fan. The middle position of the U-shaped pipe 3 is provided with a communication pipe 4 between the air inlet clamp 5. The first time relay 9 is arranged on the first conduit 1, and the second time relay 10 is arranged on the second conduit 2. This design facilitates the flow of gas from the first rotary dehumidifier to the first high-pressure fan and through the U-shaped pipe 3 into the air inlet clamp 5, or the flow of gas from the second rotary dehumidifier to the second high-pressure fan and through the U-shaped pipe 3 into the air inlet clamp 5. The side wall of the first conduit 1, the side wall of the second conduit 2 and the two end side walls of the U-shaped pipe 3 are provided with one-way valves. This design prevents the gas flowing out of the first high-pressure fan from flowing back into the second high-pressure fan by using one-way valves.

[0031] With reference to Figure 1 and Figure 2 , the communication pipe 4 is provided with a normally open electric valve 41, the air outlet pipe 61 is arranged at the bottom of the air outlet clamp 6, the normally closed electric valve 62 is arranged on the air outlet pipe 61, and the humidity sensor 8 is arranged in the air inlet clamp 5 and the air outlet clamp 6. This design uses the humidity sensor 8 to detect when the value is lower than the set value, and then controls the PLC controller to control the air filter, the normally closed electric valve 62 and the normally open electric valve 41 to work, and to turn on the first electric valve 11, the electric circuit of the first rotary dehumidifier and the first high-pressure fan, and to turn on the second electric valve 12, the electric circuit of the second rotary dehumidifier and the second high-pressure fan. Dry gas enters the air inlet clamp 5 to dehumidify and dry the main cable 7. The regulating assembly includes a PLC controller, an A / D converter is arranged at the input end of the PLC controller, a D / A converter is arranged at the output end of the PLC controller, the humidity sensor 8 is electrically connected to the A / D converter, and the air filter, the normally open electric valve 41 and the normally closed electric valve 62 are electrically connected to the D / A converter.

[0032] With reference to Figure 3 and Figure 4, the first time relay 9 is connected in series in the circuit of the first electric valve 11, the first rotary dehumidifier and the first high pressure fan, the second time relay 10 is connected in series in the circuit of the second electric valve 12, the second rotary dehumidifier and the second high pressure fan, the circuit of the first electric valve 11, the first rotary dehumidifier and the first high pressure fan is connected in parallel with the circuit of the second electric valve 12, the second rotary dehumidifier and the second high pressure fan, a time difference is arranged between the first time relay 9 and the second time relay 10, the time difference arranged between the first time relay 9 and the second time relay 10 is used to connect the circuit of the first electric valve 11, the first rotary dehumidifier and the first high pressure fan through the first time relay 9 or connect the circuit of the second electric valve 12, the second rotary dehumidifier and the second high pressure fan through the second time relay 10, so that dry gas is alternately provided to the inlet clamp 5, and the main cable 7 is alternately dried, avoiding that long-time operation of the internal equipment of the dehumidification system reduces the stability and effectiveness of the system and affects the dehumidification effect, the time difference of the first time relay 9 and the second time relay 10 is 1-2 seconds, improving the rationality of the design, the adapter pipe 13 is arranged between the first conduit 1 and the second conduit 2, and the third electric valve 14 is arranged on the adapter pipe 13, when the first high pressure fan is damaged, the third electric valve 14 is opened to connect the first conduit 1 and the second conduit 2 through the adapter pipe 13, so that the fluid works with the second high pressure fan to dry the main cable 7, and the first rotary dehumidifier is damaged, the third electric valve 14 is opened to connect the first conduit 1 and the second conduit 2 through the adapter pipe 13, so that the fluid works with the second rotary dehumidifier to dry the main cable 7.

[0033] As an embodiment of the present application: the staff works by making the first electric valve 11, the first rotary dehumidifier and the first high pressure fan work or making the second electric valve 12, the second rotary dehumidifier and the second high pressure fan work alternately, so as to avoid damage caused by long-time work, and alternately dry the main cable 7, which can avoid that long-time operation of the internal equipment of the dehumidification system reduces the stability and effectiveness of the system, thereby ensuring the stability and effectiveness of the operation and improving the dehumidification effect, and when the first rotary dehumidifier and the first high pressure fan work dehumidification and are damaged for maintenance, the second rotary dehumidifier and the second high pressure fan can be used to work for dehumidification, so that dehumidification operation can be performed in time, and the service life of the main cable 7 is improved.

[0034] By using the time difference set between the first time relay 9 and the second time relay 10, the circuit of the first electric valve 11, the first rotary dehumidifier and the first high-pressure fan is turned on by the first time relay 9 or the circuit of the second electric valve 12, the second rotary dehumidifier and the second high-pressure fan is turned on by the second time relay 10, so that the two circuits are alternately turned on, so that the inlet air clamp 5 is alternately provided with dry gas, so that the main cable 7 is alternately dried, so as to avoid the long-time operation of the internal equipment of the dehumidification system, which can reduce the stability and effectiveness of the system and affect the dehumidification effect, thereby improving the stability and effectiveness of the system and enhancing the dehumidification effect.

[0035] The basic principles and main features of the present application and the advantages of the present application are shown and described above, and it is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be realized in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended to include all changes falling within the meaning and scope of the equivalent elements of the claims in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0036] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for clarity, those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A more stable dehumidification system for the main cable of a suspension bridge, comprising: An air filtration device, a dehumidification device, and a pressurization device are provided. The air filtration device is used to filter the intake air and deliver the filtered air to the dehumidification device for drying. The dehumidification device is used to deliver the dried air to the inside of the pressurization device. The pressurization device is used to pressurize the dried air and deliver it to the air inlet clamp (5) set on the main cable (7) so that the dried air absorbs moisture and dries the main cable (7) and finally flows out from the exhaust clamp (6) set on the main cable (7). Its features are, The dehumidification device includes a first rotary dehumidifier and a second rotary dehumidifier. The pressurization device includes a first high-pressure fan and a second high-pressure fan. The exhaust pipe on the air filter device is connected to the air inlet pipe on the first rotary dehumidifier and the second rotary dehumidifier, respectively. A first conduit (1) is provided between the exhaust pipe on the first rotary dehumidifier and the air inlet pipe on the first high-pressure fan. A second conduit (2) is provided between the exhaust pipe on the second rotary dehumidifier and the air inlet pipe on the second high-pressure fan. A connecting pipe (13) is provided between the first conduit (1) and the second conduit (2). A third electric valve (14) is provided on the connecting pipe (13). A U-shaped pipe (3) is provided between the exhaust pipe on the first high-pressure fan and the exhaust pipe on the second high-pressure fan. A connecting pipe (4) is provided between the middle position of the U-shaped pipe (3) and the air inlet clamp (5) provided on the main cable (7). A first time relay (9) is provided on the first conduit (1), and a second time relay (10) is provided on the second conduit (2). The first rotary dehumidifier is equipped with a first electric valve (11) on its air inlet pipe, and the second rotary dehumidifier is equipped with a second electric valve (12) on its air inlet pipe. The first time relay (9) is connected in series in the circuit of the first electric valve (11), the first rotary dehumidifier and the first high-pressure blower. The second time relay (10) is connected in series in the circuit of the second electric valve (12), the second rotary dehumidifier and the second high-pressure blower. The circuit of the first electric valve (11), the first rotary dehumidifier and the first high-pressure blower is connected in parallel with the circuit of the second electric valve (12), the second rotary dehumidifier and the second high-pressure blower. A time difference is set between the first time relay (9) and the second time relay (10). The dehumidification device is equipped with a control component for alternating moisture absorption of the main cable (7) by operating the first electric valve (11), the first rotary dehumidifier and the first high-pressure fan, or by operating the second electric valve (12), the second rotary dehumidifier and the second high-pressure fan.

2. The suspension bridge main cable dehumidification system with higher stability according to claim 1, characterized in that, One-way valves are provided on the sidewalls of the first conduit (1), the second conduit (2), and both ends of the U-tube (3).

3. The suspension bridge main cable dehumidification system with higher stability according to claim 1, characterized in that, The connecting pipe (4) is provided with a normally open electric valve (41), the bottom of the exhaust clamp (6) is provided with an exhaust pipe (61), the exhaust pipe (61) is provided with a normally closed electric valve (62), and the air inlet clamp (5) and the exhaust clamp (6) are both provided with humidity sensors (8).

4. A suspension bridge main cable dehumidification system with higher stability according to claim 3, characterized in that, The control component includes a PLC controller, an A / D converter at the input end of the PLC controller, a D / A converter at the output end of the PLC controller, a humidity sensor (8) electrically connected to the A / D converter, and an air filter, a normally open electric valve (41), and a normally closed electric valve (62) electrically connected to the D / A converter.

5. A suspension bridge main cable dehumidification system with higher stability according to claim 1, characterized in that, The time difference between the first time relay (9) and the second time relay (10) is 1 to 2 seconds.

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