Waterproof detection device for tube bundle cleaning

Abstract

The utility model relates to a waterproof detection device for cleaning a tube bundle. The waterproof detection device comprises a lifting device capable of vertically lifting, and a water collecting tank and a hinge frame which are respectively arranged at two ends of the lifting device, the hinge frame is located over the water collecting tank and fixed to the output tail end of the lifting device. A waterproof soft curtain is arranged between the water collecting tank and the hinge frame; in the process that the pipe bundle cleaning device conducts water cleaning on the steam generator, the lifting device drives the waterproof soft curtain to be unfolded, the area of the unfolded waterproof soft curtain is large, water sputtering generated in the cleaning process can be collected easily, and water dripped from the waterproof soft curtain is collected through the water collecting tank below; when the waterproof curtain is not used, the lifting device descends and is matched with the electric steel rope hinge wheel to store the waterproof soft curtain, so that the size is reduced and the waterproof soft curtain is stored.

Description

Technical Field

[0001] The utility model relates to a waterproof detection device for tube bundle cleaning, belonging to the technical field of steam generator tube bundle flushing. Background Art

[0002] A steam generator is a device that converts a liquid into steam. It is widely used in the thermal energy field, especially in industrial fields such as nuclear power plants and thermal power plants. It converts the thermal energy in a liquid (such as water) into steam energy to drive a generator or provide thermal energy.

[0003] A steam generator usually consists of a closed container and a series of heat exchange tube bundle assemblies. The liquid is heated in the container to raise its temperature and convert it into steam. In a nuclear power plant, the thermal energy released in the nuclear reactor is transferred to the liquid coolant (usually water) through the tube bundle assembly of the reactor steam generator, causing it to boil and convert into steam. In a thermal power plant, a common method is to bring the high-temperature flue gas generated by combustion into contact with water through a heat exchanger to convert the water into steam.

[0004] Currently, in the existing steam generator tube bundles, the final flushing, drying, and inspection of cleanliness and other processes after hydraulic expansion are all completed manually, which is not only time-consuming and laborious, but also has poor cleaning effect and low cleaning efficiency, and poses a certain threat to the personal safety of operators. Therefore, a cleaning device is needed for automatic cleaning;

[0005] During the process of the cleaning device cleaning the steam generator, the high-intensity water flow generated by the cleaning device will inevitably cause splashing, and these splashed waters will scatter on the surrounding equipment and the ground. Content of the Utility Model

[0006] In order to overcome the problem that the existing tube bundle cleaning device splashes water during the cleaning process and scatters it on the surrounding equipment and the ground.

[0007] To achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A waterproof detection device for tube bundle cleaning, comprising:

[0009] A vertically lifting device, and a water collecting tank and a hinge bracket respectively arranged at both ends of the lifting device;

[0010] The hinge bracket is located directly above the water collecting tank and is fixed at the output end of the lifting device;

[0011] A waterproof soft curtain is arranged between the water collecting tank and the hinge bracket.

[0012] Preferably, the lifting device adopts a multi-section telescopic electric cylinder or a multi-stage tower rod mechanism.

[0013] Preferably, a reinforcing rod is provided between the output end of the lifting device and the middle part of the hinge frame.

[0014] Preferably, a water filtering steel mesh is provided at the top opening of the water collecting tank.

[0015] Preferably, a drain pipe is installed on the side wall of the water collecting tank.

[0016] Preferably, the lower end of the lifting device is fixedly arranged with the water collecting tank.

[0017] Preferably, a vibration sensor is installed on the hinge frame.

[0018] Preferably, an electric wire rope winch is installed on the hinge frame, and the upper end of the waterproof flexible curtain is wound around the output shaft of the electric wire rope winch.

[0019] Compared with the prior art, the utility model has the following characteristics and beneficial effects:

[0020] During the process of the tube bundle cleaning device performing water cleaning on the steam generator, the lifting device drives the waterproof flexible curtain to unfold. The unfolded waterproof flexible curtain has a large area, which is beneficial for collecting water splashing during the cleaning process, and the water dripping from the waterproof flexible curtain is collected by the water collecting tank below;

[0021] When not in use, the lifting device descends and cooperates with the electric wire rope winch to store the waterproof flexible curtain, which is beneficial for reducing the volume and storage. Description of the Drawings

[0022] Figure 1 It is a schematic structural diagram of the utility model.

[0023] Among them, the reference numerals are:

[0024] 1101, lifting device; 1102, water collecting tank; 1103, hinge frame; 1104, reinforcing rod; 1105, vibration sensor; 1106, waterproof flexible curtain; 1107, water filtering steel mesh; 1108, drain pipe; 1109, electric wire rope winch. Detailed Embodiment

[0025] The present utility model will be described in more detail below with reference to the embodiments.

[0026] As Figure 1 shown:

[0027] The lifting device 1101 adopts a multi-section telescopic electric cylinder or a multi-stage tower rod mechanism, which can greatly reduce the length when shortened. The lower end of the lifting device 1101 is relatively fixed on the ground, the inside of the water collecting tank 1102 is hollow and the opening faces upward and is relatively fixed at the lower end of the lifting device 1101; the upper end (output end) of the lifting device 1101 is fixedly provided with a horizontally arranged hinge frame 1103 in a cantilever beam structure.

[0028] A reinforcing rod 1104 is provided at the upper end (output end) of the lifting device 1101 and the middle part of the hinge bracket 1103, and the strength of the hinge bracket 1103 of the cantilever beam structure is improved through the reinforcing rod 1104.

[0029] The lifting device 1101 is vertically arranged and moves up and down / extends and contracts along the vertical (gravity) direction.

[0030] A water filtering steel mesh 1107 is provided at the opening of the water collecting tank 1102 to filter the water entering the water collecting tank 1102, and the water in the water collecting tank 1102 is discharged outward through the drain pipe 1108.

[0031] An electric steel wire winch 1109 is installed on the hinge bracket 1103. The output shaft of the electric steel wire winch 1109 is arranged parallel to and has a similar length to the hinge bracket 1103, and the output shaft of the electric steel wire winch 1109 is relatively rotatably connected to the hinge bracket 1103. A vibration sensor 1105 is installed on the hinge bracket 1103.

[0032] The waterproof flexible curtain 1106 can be made of waterproof cloth. The upper end of the waterproof flexible curtain 1106 is wound around the output shaft of the electric steel wire winch 1109, and the lower end of the waterproof flexible curtain 1106 is relatively fixed at the opening of the water collecting tank 1102.

[0033] Working principle:

[0034] When in use, the lifting device 1101 drives the hinge bracket 1103 to rise vertically. During this process, the electric steel wire winch 1109 releases the waterproof flexible curtain 1106 wound around its output shaft, realizing the unfolding and tensioning state of the waterproof flexible curtain 1106; the unfolded waterproof flexible curtain 1106 is in a planar shape with a large area. Thus, during the process of the tube bundle cleaning device performing water cleaning on the steam generator, the splashed water is blocked by the unfolded waterproof flexible curtain 1106 and adheres to the waterproof flexible curtain 1106. Since the unfolded waterproof flexible curtain 1106 is relatively vertically arranged, the water adhering to it flows downward under the action of gravity and drips into the water collecting tank 1102.

[0035] During the cleaning process of the steam generator, it is also necessary to perform the blowing detection of the felt plug / foam plug. The unfolded waterproof flexible curtain 1106 can also be used to block / collect the felt plug / foam plug blown outward during the blowing detection. The felt plug / foam plug impacts the waterproof flexible curtain 1106 to generate a certain vibration, which is monitored by the vibration sensor 1105, thereby providing verification for the blowing detection of the felt plug / foam plug.

[0036] When not in use, the lifting device 1101 drives the hinge bracket 1103 to descend vertically. During this process, the electric steel wire winch 1109 synchronously drives the output shaft to rotate to wind and store the waterproof flexible curtain 1106 on the output shaft of the electric steel wire winch 1109. Thus, the overall size of the waterproof detection device is reduced.

[0037] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "inner", "outer", "upper", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0038] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0039] Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model.

Claims

1. A waterproof detection device for tube bundle cleaning, characterized in that: include: A vertically lifting lifting device (1101), and a water collecting tank (1102) and a hinge frame (1103) respectively arranged at two ends of the lifting device (1101); The hinge (1103) is located directly above the water collecting tank (1102) and is fixed to the output end of the lifting device (1101); A waterproof soft curtain (1106) is provided between the water collecting tank (1102) and the hinge frame (1103).

2. A waterproof detection device for tube bundle cleaning according to claim 1, characterized in that: The lifting device (1101) adopts a multi-section telescopic electric cylinder or a multi-stage tower mechanism.

3. A waterproof detection device for tube bundle cleaning according to claim 1, characterized in that: A reinforcing rod (1104) is provided between the output end of the lifting device (1101) and the middle of the hinge (1103).

4. A waterproof detection device for tube bundle cleaning according to claim 1, characterized in that: A water filtering steel mesh (1107) is provided at the top opening of the water collecting tank (1102).

5. The waterproof detection device for tube bundle cleaning according to claim 1, characterized in that: A drainage pipe (1108) is installed on the side wall of the water collection tank (1102).

6. A waterproof detection device for tube bundle cleaning according to claim 1, characterized in that: The lower end of the lifting device (1101) and the water collecting tank (1102) are fixedly arranged.

7. A waterproof detection device for tube bundle cleaning according to claim 1, characterized in that: A vibration sensor (1105) is installed on the hinge (1103).

8. The waterproof detection device for tube bundle cleaning according to claim 1, characterized in that: An electric hinge wheel (1109) is installed on the hinge frame (1103), and the upper end of the waterproof soft curtain (1106) is wound around the output shaft of the electric steel rope hinge wheel (1109).

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