Rapid lifting device for surge shaft of burial chamber of large jingyann

Abstract

The utility model discloses a quick lifting device for a surge shaft of a burial chamber of a large-hole neck. The quick lifting device comprises the surge shaft, an ear hole and a wellhead cross beam, in order to ensure the construction of the large-hole-diameter buried surge shaft from the construction requirement and the safety angle, the lifting system structure is researched and designed, so that the construction requirement is met, the construction safety is ensured, and the structure is quick to mount, good in stability, high in safety and capable of meeting the construction requirements of the large-hole-diameter buried surge shaft at different stages. The lifting structure is used for construction of the large-hole-diameter buried surge shaft in the hydropower underground engineering, the overall stability of a lifting system is guaranteed, mechanical equipment can be lifted to enter the shaft for excavation operation under the conditions of limited space and the like, the construction progress is accelerated, the cost is controllable, and the construction efficiency is improved. Therefore, the lifting system can continue to be used in later concrete lining and grouting operation, and benefits are remarkable.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting devices, in particular to a rapid lifting device for a pressure regulating well in a Dadongjing buried chamber. Background Art

[0002] During the load adjustment process of the start-up and shutdown of the hydraulic units of the hydropower station, especially in the case of sudden load shedding due to accidents, the pressure of the water supply system pipeline will also change due to the change in the water flow inertia of the water supply system. The longer the water supply system pipeline, the greater the pressure change. Therefore, in the design of a hydropower station with a long water supply system, in order to make the pressure change amplitude of the pressure pipeline meet the safety needs of the hydropower station, an upstream pressure regulating well or a downstream pressure regulating well is usually set, or a pressure regulating well is set up upstream and downstream at the same time.

[0003] The patent name is "A Hydropower Station Surge Shaft" with announcement number "CN104060591B". The shortcomings in this public document are: in the construction of large-diameter buried surge shafts in underground caverns of hydropower underground projects, due to the large well section, complex construction conditions, limited space, many supporting facilities, difficulty in arranging the lifting system, and high safety risks; the conventional lifting system structure is difficult to meet construction needs and the structure is unstable, and mechanical equipment cannot be hoisted into the well for operation, resulting in low operating efficiency and high costs. Based on this, the utility model designs a rapid lifting device for the large-diameter buried chamber surge shaft to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a rapid lifting device for a pressure regulating well of a Dadongjing buried chamber to solve the problems raised by the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fast lifting device for a surge well in a Dadongjing buried chamber, comprising a surge well, an ear hole and a wellhead crossbeam, wherein the ear hole is integrally arranged on the left and right sides of the top of the inner part of the surge well, the wellhead crossbeam is arranged at the upper end of the inner part of the surge well, and the left and right ends of the wellhead crossbeam are fixedly connected to the ear hole, a gantry is arranged on the top of the wellhead crossbeam, and the gantry is composed of a No. 1 I40b I-beam and an I22b I-beam, and the number of the No. 1 I40b I-beam and the I22b I-beam is There are two of them. The No. 1 I40b I-beam is set on the right side of the top of the wellhead beam, the No. 1 I40b I-beam is set at the middle end of the top of the wellhead beam, and three lifting winches are set on the right side of the top of the pressure regulating shaft. The upper and lower ends of the inner parts of the No. 1 I40b I-beam and the I22b I-beam are connected with a sheave, and the lower end of the I22b I-beam is provided with a manned cage, and the lower end of the manned cage is provided with a protective plate, and guardrails are provided around the top of the protective plate, and the lower end of the No. 1 I40b I-beam is provided with a slag backhoe.

[0006] Furthermore, the lifting winch on the left side is fixedly connected to the protective plate through a lifting rope, the lifting winch on the middle end is fixedly connected to the manned tank cage through a lifting rope, and the lifting winch on the right side is fixedly connected to the slag backhoe through a lifting rope.

[0007] Furthermore, the left and right sides of the wellhead crossbeam are fixedly connected to the ear holes through No. 1 dowel bars, the number of the No. 1 dowel bars is six, and the diameter of the No. 1 dowel bars is 28 mm.

[0008] Furthermore, No. 2 I40b I-beams are fixedly provided on the left and right sides of the bottom of the wellhead beam, and one end of the No. 2 I40b I-beam away from the wellhead beam is fixedly connected to the inner wall of the pressure regulating well through No. 2 dowel bars.

[0009] Furthermore, the upper and lower ends of the No. 1 I40b I-beam and the I22b I-beam are firmly connected by two steel plates, and the front and rear ends of the steel plates are fixedly connected to the pressure regulating well by six No. 3 dowel bars.

[0010] Furthermore, the cross-section of the steel plate in side view is designed to be 2cm*30cm*30cm, and the diameter of the No. 3 dowel bar is 28mm.

[0011] Furthermore, the slag scraper backhoe is composed of 20b I-beam, C25 threaded steel and 20b channel steel, and a plurality of walking wheels are arranged on the top of the 20b channel steel.

[0012] Furthermore, a number of I22 I-beams are fixedly arranged on the right side of the outer side of the No. 1 I40b I-beam, and the other end of the I22 I-beam is fixedly connected to the top of the pressure regulating shaft.

[0013] Furthermore, a number of I20b I-beams are fixedly arranged between the No. 1 I40b I-beams and the I22b I-beams.

[0014] Furthermore, the sheave serves as a support for the suspension rope, the load of the lifting winch on the left side is 15T, the load of the lifting winch in the middle is 5T, and the load of the lifting winch on the right side is 15T.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. In order to ensure the construction of large-diameter buried pressure-regulating wells, the utility model studies and designs a lifting system structure from the perspective of construction needs and safety, so as to meet construction needs and ensure construction safety. The structure has the advantages of fast installation, good stability and high safety, and can meet the construction needs of large-diameter pressure-regulating wells at different stages.

[0017] 2. The lifting structure in the utility model is used for the construction of large-diameter buried pressure regulating shafts in hydropower underground projects, which ensures the overall stability of the lifting system and enables mechanical equipment to be lifted into the shaft for excavation operations under conditions such as limited space, thereby speeding up the construction progress and keeping costs controllable. Therefore, the lifting system can continue to be used in the later concrete lining and grouting operations, with significant benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 This is a structural layout diagram of a rapid lifting device for a surge tank in a Dadongjing buried chamber of the utility model;

[0020] Figure 2 The layout drawing of the steel plate;

[0021] Figure 3 It is a three-dimensional diagram of the ear canal, surge tank and wellhead beam;

[0022] Figure 4 This is a top view of the slag backhoe.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1-pressure regulating shaft, 2-ear hole, 3-wellhead beam, 4-gantry, 401-No. 1 I40b I-beam, 402-I22b I-beam, 5-lifting winch, 6-sky sheave, 7-manned cage, 8-protective plate, 9-guardrail, 10-slag backhoe, 11-No. 1 dowel bar, 12-No. 2 I40b I-beam, 13-No. 2 dowel bar, 14-steel plate, 15-No. 3 dowel bar, 16-20b I-beam, 17-C25 threaded steel, 18-20b channel steel, 19-travel wheel, 20-I22 I-beam, 21-I20b I-beam. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example 1

[0027] like Figure 1 , Figure 3 As shown, the device includes a surge tank 1, an ear hole 2 and a wellhead beam 3. The ear hole 2 is integrally arranged on the left and right sides of the top of the pressure regulating tank 1. The wellhead beam 3 is arranged at the upper end of the pressure regulating tank 1, and the left and right ends of the wellhead beam 3 are fixedly connected to the ear hole 2. A gantry 4 is arranged on the top of the wellhead beam 3. The gantry 4 is composed of a No. 1 I40b I-beam 401 and an I22b I-beam 402. The number of No. 1 I40b I-beam 401 and the number of I22b I-beam 402 are both two. The I22b I-beam 402 is arranged Placed on the right side of the top of the wellhead crossbeam 3, an I22b I-beam 402 is arranged at the middle end of the top of the wellhead crossbeam 3, three lifting winches 5 are arranged on the right side of the top of the pressure-regulating well 1, and the upper and lower ends of the inner parts of the No. 1 I40b I-beam 401 and the I22b I-beam 402 are connected with a sheave 6, a manned cage 7 is arranged at the lower end of the I22b I-beam 402, a protective plate 8 is arranged at the lower end of the manned cage 7, and guardrails 9 are arranged around the top of the protective plate 8, and a slag backhoe 10 is arranged at the lower end of the No. 1 I40b I-beam 401.

[0028] The hoisting winch 5 on the left is fixedly connected to the protective plate 8 through a lifting rope, the hoisting winch 5 in the middle is fixedly connected to the manned tank cage 7 through a lifting rope, and the hoisting winch 5 on the right is fixedly connected to the slag backhoe 10 through a lifting rope. The gantry 4 column and the wellhead crossbeam 3 are protected by steel plates 14, and the welds are full. The gantry 4 is composed of two columns. The main column is made of No. 1 I40b I-beam 401, the auxiliary column is made of double 22b I-beam, and the gantry 48 columns are connected by I22b I-beam 402. In order to meet the construction requirements of the large-diameter buried surge tank 1, the hoisting winch 5 lifts the manned tank cage 7, the protective plate 8 and the slag backhoe 10 through the sheave 6 on the gantry 4. In order to ensure the safety of personnel going up and down during construction, a travel limiter is installed on the upper part of the lifting manned tank cage 7 system, and an extreme limiter is installed on the lower part. When the load increases and exceeds the set load value during the lifting operation, the power can be automatically cut off. During the construction period of slag removal or drilling with a hydraulic drill, a slag removal backhoe 10 or a hydraulic drill lowering platform is designed. The slag removal backhoe 10 or the hydraulic drill is located above the lowering platform and moves along the wellhead beam 3 to the bottom of the gantry 4. The lifting winch 5 lifts the slag removal backhoe 10 or the hydraulic drill to a certain height, removes the lowering platform, and lowers the slag removal backhoe 10 or the hydraulic drill to the working surface, thereby circulating the work.

[0029] Example 2

[0030] like Figure 2 , Figure 4As shown, the left and right sides of the wellhead crossbeam 3 are fixedly connected to the ear hole 2 through No. 1 dowel bars 11, the number of No. 1 dowel bars 11 is six, and the diameter of No. 1 dowel bars 11 is 28 mm. No. 2 I40b I-beams 12 are fixedly arranged on the left and right sides of the bottom of the wellhead crossbeam 3, and the end of the No. 2 I40b I-beam 12 away from the wellhead crossbeam 3 is fixedly connected to the inner wall of the pressure regulating well 1 through No. 2 dowel bars 13, and the upper and lower ends of the No. 1 I40b I-beam 401 and the I22b I-beam 402 are firmly connected through two pieces of steel plates 14, and the front and rear ends of the steel plates 14 are fixedly connected to the pressure regulating well 1 through six pieces of No. 3 dowel bars 15, and the side cross-section of the steel plates 14 is designed to be 2cm*30cm*30cm, and the No. 3 The diameter of the inserted reinforcement 15 is 28 mm. The slag backhoe 10 is composed of a 20b I-beam 16, a C25 threaded steel 17 and a 20b channel steel 18. A number of walking wheels 19 are arranged on the top of the 20b channel steel 18. A number of I22 I-beams 20 are fixedly arranged on the right side of the outer side of the No. 1 I40b I-beam 401. The other end of the I22 I-beam 20 is fixedly connected to the top of the pressure regulating shaft 1. A number of I20b I-beams 21 are fixedly arranged between the No. 1 I40b I-beam 401 and the I22b I-beam 402. The sheave 6 supports the lifting rope. The load of the lifting winch 5 on the left is 15T, the load of the lifting winch 5 at the middle end is 5T, and the load of the lifting winch 5 on the right is 15T.

[0031] According to the operation method in Example 1, the ear hole 2 is drilled with a YT-28 hand drill, blasted with explosives, the end of the wellhead beam 3 is fixed with a No. 1 dowel 11, and a No. 2 dowel 13 is arranged under the ear hole 2 to increase the stability of the ear hole 2. Finally, the ear hole 2 is backfilled with C20 concrete, and the gantry 4 is connected and reinforced with I22 I-beam 20 and I20b I-beam 21 to ensure the overall stability of the structure. All steel structure connections are welded, and the welds are full and have no undercut.

Claims

1. A rapid lifting device for a surge well in a Dadongjing buried chamber, comprising a surge well (1), an ear hole (2) and a wellhead crossbeam (3), characterized in that: The ear holes (2) are integrally arranged on the left and right sides of the top of the pressure regulating shaft (1); the wellhead crossbeam (3) is arranged at the upper end of the pressure regulating shaft (1), and the left and right ends of the wellhead crossbeam (3) are fixedly connected to the ear holes (2); a gantry (4) is arranged on the top of the wellhead crossbeam (3); the gantry (4) is composed of a No. 1 I40b I-beam (401) and an I22b I-beam (402); the No. 1 I40b I-beam (401) and the I22b I-beam (402) are both in two pieces; the No. 1 I40b I-beam (401) is arranged on the right side of the top of the wellhead crossbeam (3); On the side, the I22b I-beam (402) is arranged at the middle end of the top of the wellhead crossbeam (3), three lifting winches (5) are arranged on the right side of the top of the pressure regulating shaft (1), the upper and lower ends of the inner parts of the No. 1 I40b I-beam (401) and the I22b I-beam (402) are connected with a sheave (6), the lower end of the I22b I-beam (402) is provided with a manned cage (7), the lower end of the manned cage (7) is provided with a protective plate (8), and guardrails (9) are arranged around the top of the protective plate (8), and the lower end of the No. 1 I40b I-beam (401) is provided with a slag backhoe (10).

2. According to claim 1, a rapid lifting device for the surge tank in the Dadongjing buried chamber is characterized in that: The lifting winch (5) on the left side is fixedly connected to the protection plate (8) through a lifting rope, the lifting winch (5) on the middle end is fixedly connected to the manned cage (7) through a lifting rope, and the lifting winch (5) on the right side is fixedly connected to the scraping backhoe (10) through a lifting rope.

3. According to claim 1, a rapid lifting device for the surge tank in the Dadongjing buried chamber is characterized in that: The left and right sides of the wellhead cross beam (3) are fixedly connected to the ear holes (2) through No. 1 inserted bars (11), the number of the No. 1 inserted bars (11) is six, and the diameter of the No. 1 inserted bars (11) is 28 mm.

4. According to claim 1, a rapid lifting device for the surge tank in the Dadongjing buried chamber is characterized in that: No. 2 I40b I-beams (12) are fixedly arranged on the left and right sides of the bottom of the wellhead cross beam (3); one end of the No. 2 I40b I-beam (12) away from the wellhead cross beam (3) is fixedly connected to the inner wall of the pressure regulating well (1) through No. 2 dowel bars (13).

5. According to claim 1, a rapid lifting device for the surge tank in the Dadongjing buried chamber is characterized in that: The upper and lower ends of the No. 1 I40b I-beam (401) and the I22b I-beam (402) are firmly connected by two steel plates (14), and the front and rear ends of the steel plates (14) are fixedly connected to the pressure regulating shaft (1) by six No. 3 dowel bars (15).

6. According to claim 5, a rapid lifting device for the surge tank in the Dadongjing buried chamber is characterized in that: The cross-section of the steel plate (14) in side view is designed to be 2cm*30cm*30cm, and the diameter of the No. 3 dowel bar (15) is 28mm.

7. According to claim 1, a rapid lifting device for the surge tank in the Dadongjing buried chamber is characterized in that: The scraping backhoe (10) is composed of a 20b I-beam (16), a C25 threaded steel (17) and a 20b channel steel (18), and a plurality of running wheels (19) are arranged on the top of the 20b channel steel (18).

8. According to claim 1, a rapid lifting device for the surge tank in the Dadongjing buried chamber is characterized in that: A plurality of I22 I-beams (20) are fixedly arranged on the right side of the outer side of the No. 1 I40b I-beam (401), and the other end of the I22 I-beam (20) is fixedly connected to the top of the pressure regulating shaft (1).

9. According to claim 1, a rapid lifting device for the surge tank in the Dadongjing buried chamber is characterized in that: A plurality of I20b I-beams (21) are fixedly arranged between the first I40b I-beams (401) and the I22b I-beams (402).

10. The rapid lifting device for the surge tank in the Dadongjing buried chamber according to claim 1 is characterized in that: The sheave (6) serves as a support for the suspension rope. The load of the lifting winch (5) on the left side is 15 ton, the load of the lifting winch (5) at the middle end is 5 ton, and the load of the lifting winch (5) on the right side is 15 ton.

Images