Sliding table in device matched with crane to vertically erect high-pressure heater

Abstract

The utility model discloses a sliding table in a device matched with a crane to enable a high-pressure heater to be vertically erected, which comprises a carrying table and a sliding rail for the carrying table to slide, a rear support is arranged at the rear end of the carrying table, and grooves with upward openings are symmetrically arranged on two sides of the rear support. Rear hanging lug columns arranged on the two sides of the rear end of the high-pressure heater can be placed in grooves in the two sides of the rear support correspondingly, the front end of the sliding rail is located in the area below the crane, and when the crane continuously lifts the front end of the high-pressure heater upwards above the front end of the high-pressure heater, the high-pressure heater can rotate around the rear hanging lug columns, and meanwhile the high-pressure heater can rotate around the rear hanging lug columns. The rear end of the high-pressure heater can continuously slide forwards to the position below the crane along with the carrying table under the action of external force. The high-pressure heater has the advantages that through the arrangement, a huge and heavy high-pressure heater can be smoothly and vertically erected only by properly applying external force; the structure is simple and operation is convenient.

Description

Technical Field

[0001] The utility model relates to a slide table in a device which cooperates with a crane to vertically erect a high-voltage heater, and belongs to the technical field of thermal power installation. Background Art

[0002] At present, domestic power construction has turned to thermal power plants with 1000MW and higher parameters, and 1000MW ultra-supercritical unit projects have become the mainstream. With the continuous development of power construction projects and the continuous improvement of design levels, traditional horizontal high-pressure heaters cannot meet the needs of ultra-supercritical unit projects and have gradually been replaced by new vertical high-pressure heaters. The installation location has also changed greatly, from being arranged in the steam engine room to being arranged on the boiler steel frame, and the weight and external dimensions have also increased a lot (taking the 2×1 million kilowatt expansion and upgrading project of Changan Yiyang Power Generation Co., Ltd. as an example, the maximum weight of the high-pressure heater is 325.5 tons and the maximum height is 16200mm). Due to the compact structure and small space of the boiler steel frame K0 / K1, G1-G6, the truck crane or crawler crane cannot meet the hoisting of the vertical high-pressure heater, and it does not have the conditions for the steam engine room aerial hoisting. Therefore, the original horizontal high-pressure heater hoisting technology is no longer applicable to the hoisting of the vertical high-pressure heater, so it is necessary to study a set of hoisting solutions suitable for the vertical high-pressure heater arranged on the boiler steel frame. To this end, based on the 2×1 million kilowatt capacity expansion and upgrading project of Changan Yiyang Power Generation Co., Ltd., research on the hoisting of vertical high-pressure heaters was carried out.

[0003] Since the high-pressure heater is a long tank with large volume and heavy weight, and it is vertically suspended on the beam frame, with the lower end about ten meters above the ground, it is necessary to first vertically erect the heavy and bulky horizontal high-pressure heater (it can only be transported to the site in a horizontal position and temporarily stored on site in a horizontal position) and then vertically lift it. The whole process cannot cause the tank to sway significantly, otherwise, it will be difficult to control due to its heavy weight, causing damage to related facilities or even major accidents. Therefore, in the case where the existing lifting facilities cannot be used, it is necessary to build a lifting system that is safe and reliable, simple and efficient to operate, and easy to remove after assembly. Utility Model Content

[0004] The technical problem to be solved by the utility model is: how to cooperate with a crane to vertically erect a heavy and bulky high-pressure heater.

[0005] In view of the above problems, the technical solution proposed by the utility model is:

[0006] A slide in a device that cooperates with a crane to make a high-voltage heater stand vertically includes a carrier and a slide rail for the carrier to slide. A rear support is provided at the rear end of the carrier, and symmetrically arranged grooves with upward openings are provided on both sides of the rear support. Rear hanging ear columns arranged on both sides of the rear end of the high-voltage heater can be placed in the grooves on both sides of the rear support respectively, and the front end of the slide rail is located in the lower area of ​​the crane. When the crane continuously lifts the front end of the high-voltage heater upward above the front end of the high-voltage heater, the high-voltage heater can rotate around the rear hanging ear columns. At the same time, the rear end of the high-voltage heater can continuously slide forward to the bottom of the crane under the action of external force with the carrier.

[0007] A front support is provided at the front end of the carrier, and a lying groove for the high-pressure heater to lie on the front support is provided.

[0008] The slide rail consists of a left rail and a right rail.

[0009] A plurality of rollers are arranged on the inner sides of the left rail and the right rail, and the carrier is pressed on the rollers and slides on the rollers.

[0010] Sliding surfaces are arranged on the inner sides of the left rail and the right rail, and the carrier is pressed on the sliding surfaces and slides on the sliding surfaces.

[0011] The road surface from the back of the slide rail to the area below the crane is a downhill road surface that can reduce the sliding resistance of the platform. Beneficial Effects

[0012] 1. Through the above arrangement, the large and heavy high-voltage heater can be erected vertically smoothly by only applying a moderate external force;

[0013] 2. Simple structure and easy operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a plan view of the high-voltage heater described in Example 1 lying on a carrier;

[0015] Figure 2 It is a three-dimensional schematic diagram of the slide platform described in Example 1;

[0016] Figure 3 It is a plan view schematically showing that the front end of the high-pressure heater described in Example 1 is lifted;

[0017] Figure 4 It is a schematic plan view of the high-pressure heater in Example 1 being vertically erected;

[0018] Figure 5 It is a three-dimensional schematic diagram of the slide platform described in the second embodiment.

[0019] In the figure: 1. carrier; 101. rear support; 1011. groove; 102. front support; 1021. horizontal groove; 2. left rail; 3. right rail; 4. roller; 5. sliding surface; 6. high-pressure heater; 601. front hanging ear column; 602. rear hanging ear column; 7. crane. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings: Embodiment 1

[0021] like Figure 1 As shown in FIG. 4, a slide in a device for cooperating with a crane to vertically erect a high-voltage heater comprises a carrier 1 and a slide rail for the carrier 1 to slide. A rear support 101 is provided at the rear end of the carrier 1. There are symmetrically arranged grooves 1011 with an upward opening on both sides of the rear support 101. The rear hanging ear columns 602 arranged on both sides of the rear end of the high-voltage heater can be placed in the grooves 1011 on both sides of the rear support 101, respectively. The front end of the slide rail is located in the lower area of ​​the crane 7. When the crane continuously lifts the front end of the high-voltage heater 6 upward above the front end of the high-voltage heater 6, the high-voltage heater 6 can rotate around the rear hanging ear column 602. At the same time, the rear end of the high-voltage heater 6 can continuously slide forward to the bottom of the crane under the action of external force with the carrier 1, so that the high-voltage heater 6 can be vertically erected. Here, the crane 7 hangs the front hanging ear columns 601 on both sides of the front of the high-voltage heater 6 by ropes to lift the front end of the high-voltage heater 6 upward. The platform 1 continuously slides forward under the action of external force, which means that while the front end of the high-voltage heater 6 is lifted upward, a thrust or a pull is applied to the platform 1, so that the rear end of the high-voltage heater 6 continuously moves directly under the crane 7. Through the above arrangement and the auxiliary action of external force, the large and heavy long can-shaped high-voltage heater 6 can be erected smoothly.

[0022] The crane described here is a commercially available Rausinger hydraulic lifting device.

[0023] Further, the front end of the carrier 1 is provided with a front support 102, and the front support 102 is provided with a horizontal groove 1021 for the high-voltage heater 6 to lie. In this way, the high-voltage heater 6 can be horizontally placed on the front support 102 and the rear support 101.

[0024] The slide rail is composed of a left rail 2 and a right rail 3. A plurality of rollers 4 are arranged inside the left rail 2 and the right rail 3, and the carrier 1 is pressed on the rollers 4 and slides on the rollers 4. In this way, the sliding resistance of the carrier 1 is small. Embodiment 2

[0025] like Figure 5As shown, the difference between the embodiment 1 and the embodiment 1 is that a sliding surface 5 is provided inside the left rail 2 and the right rail 3, and the platform 1 is pressed on the sliding surface 5 and slides on the sliding surface 5. With this arrangement, the structure is much simpler than that of the embodiment 1, but the sliding resistance is larger. In order to reduce the sliding resistance of the platform 1, grease or lubricating oil is applied to the sliding surface 5. Embodiment 3

[0026] The road surface from the back to the front of the slide rail to the area below the crane 7 is a downhill road surface that can reduce the sliding resistance of the platform 1. This can reduce the force that pushes the platform 1 to slide when the high-pressure heater 6 is vertically erected. There is no view of this embodiment.

[0027] The above embodiments are only used to more clearly describe the present invention and cannot be regarded as limiting the protection scope of the present invention. Any modifications in equivalent forms should be regarded as falling within the protection scope of the present invention.

Claims

1. A slide in a device for vertically erecting a high-voltage heater in cooperation with a crane, characterized in that: The invention comprises a carrier (1) and a slide rail for the carrier (1) to slide. A rear support (101) is provided at the rear end of the carrier (1). Both sides of the rear support (101) are provided with symmetrically arranged grooves (1011) opening upward. Rear hanging ear columns (602) arranged at both sides of the rear end of the high-voltage heater can be placed in the grooves (1011) on both sides of the rear support (101), respectively. The front end of the slide rail is located in the lower area of ​​the crane (7). When the crane continuously lifts the front end of the high-voltage heater (6) upward above the front end of the high-voltage heater (6), the high-voltage heater (6) can rotate around the rear hanging ear columns (602). At the same time, the rear end of the high-voltage heater (6) can continuously slide forward to the bottom of the crane under the action of an external force along with the carrier (1).

2. The slide in the device for vertically erecting a high-pressure heater in cooperation with a crane according to claim 1, characterized in that: A front support (102) is provided at the front end of the carrier (1), and a lying groove (1021) for the high-pressure heater (6) to lie on is provided on the front support (102).

3. The slide in the device for vertically erecting a high-pressure heater in cooperation with a crane according to claim 1, characterized in that: The slide rail consists of a left rail (2) and a right rail (3).

4. The slide in the device for vertically erecting a high-pressure heater in cooperation with a crane according to claim 3, characterized in that: A plurality of rollers (4) are provided on the inner sides of the left rail (2) and the right rail (3), and the carrier (1) is pressed on the rollers (4) and slides on the rollers (4).

5. The slide in the device for vertically erecting a high-pressure heater in cooperation with a crane according to claim 3, characterized in that: A sliding surface (5) is provided on the inner side of the left rail (2) and the right rail (3), and the carrier (1) is pressed on the sliding surface (5) and slides on the sliding surface (5).

6. The slide in the device for vertically erecting a high-pressure heater in cooperation with a crane according to claim 1, characterized in that: The road surface from the back of the slide rail to the area below the crane (7) is a downhill road surface capable of reducing the sliding resistance of the carrier (1).

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