A hyperbolic cooling tower reinforcing and repairing device

Abstract

The utility model discloses a hyperbolic cooling tower reinforcing repair device, including a plurality of anchor unit, the steel wire of all anchor unit is connected in proper order, anchor unit includes two anchor rods, the connecting assembly of two anchor rods connection is connected as a whole, the top of anchor rod is equipped with the slot, and the connecting assembly is detachably connected in the slot, after connecting assembly is connected on two anchor rods, anchor unit is U type, the both ends of steel wire are connected with the same side's two anchor rods of adjacent two groups of anchor unit, to constitute reinforcing net. Through installing anchor rod on the both sides of the crack, and two anchor rods are connected into a whole through the connecting assembly, thereby can fasten the crack, prevent the crack to enlarge. Through the steel wire, all anchor unit is strung together, and forms a reinforcing net on the crack, is convenient for the adhesion of repair mortar, improves the firmness of repair layer, prevents the falling.

Description

Technical Field

[0001] This utility model relates to the field of reinforcement and repair technology, specifically a hyperbolic cooling tower reinforcement and repair device. Background Technology

[0002] The reinforced concrete hyperbolic cooling tower consists of two parts in its upper structure: a ventilation tower and a water distribution frame. The bottom of the cooling tower is a water collection pool. After long-term operation, the cooling tower may experience the following issues: exposed and corroded reinforcement in the bottom ring beam; corrosion and breakage of reinforcement in the lower and middle parts of the outer side of the tower wall; concrete spalling; leakage at formwork joints; and non-structural cracks on the concrete surface.

[0003] The current procedure for treating cracks is as follows:

[0004] ① First, organize personnel to investigate the cracks and mark them.

[0005] ② Chisel out a U-shaped groove along the direction of the crack on the surface of the component, and then wash the chiseled surface with water;

[0006] ③ Drill deep and narrow grouting holes along the cracks and clean the holes, then install the grouting pipes;

[0007] ④ Seal the joints with fiber-reinforced concrete repair mortar;

[0008] ⑤ After sealing the joint, use modified epoxy-based concrete crack reinforcement grouting material for on-site grouting.

[0009] The above method only fills the cracks by grouting, without reinforcing them with anchors or mesh, which makes the grout easy to fall off after grouting. Summary of the Invention

[0010] To address the shortcomings of existing technologies, this invention provides a hyperbolic cooling tower reinforcement and repair device to solve the problem of repairing cracks solely through grouting.

[0011] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0012] A hyperbolic cooling tower reinforcement and repair device includes several anchoring units and a steel wire that connects all the anchoring units in sequence. The anchoring units are made of stainless steel and include two anchor rods and a connecting assembly that connects the two anchor rods into a whole. The outer wall of the anchor rod is provided with a spiral pattern and the top of the anchor rod is provided with a slot. The connecting assembly is detachably connected to the slot. After the connecting assembly is connected to the two anchor rods, the anchoring unit is U-shaped. The two ends of the steel wire are connected to two anchor rods on the same side of two adjacent anchoring units to form a reinforcement mesh.

[0013] Preferably, the upper part of the anchor rod is fixedly connected to symmetrical mounting ears on both sides, and the mounting ears are provided with through holes that run through the upper and lower parts, and steel wires are tied or welded into the through holes.

[0014] In the above technical solution, when connecting the steel wire to the anchor rod, first insert the end of the steel wire into the through hole, and then use pliers to tighten the steel wire onto the mounting ear, or use a welding gun to directly weld the steel wire onto the mounting ear.

[0015] Preferably, the connecting assembly includes a connecting rod, a first connecting sleeve fixedly connected to one end of the connecting rod, and a second connecting sleeve slidably connected to the connecting rod. The bottom surfaces of both the first and second connecting sleeves are fixedly connected with insert rods, which are inserted into slots and bonded together with special adhesive.

[0016] In the above technical solution, two anchor rods are driven in along both sides of the crack. By sliding the second connecting sleeve, the distance between the two insert rods can be adjusted to be equal to the distance between the two anchor rods, so that the two insert rods can be inserted into the two slots, thereby connecting the two anchor rods into a whole through the connecting assembly.

[0017] Preferably, the inner wall of the slot is provided with multiple vertical positioning grooves, and the outer wall of the insertion rod is provided with multiple vertical positioning strips, which are inserted into the positioning grooves.

[0018] The above technical solution increases the contact area between the insertion rod and the slot through the cooperation of the positioning groove and the positioning strip. Combined with special adhesive, it makes the connection between the insertion rod and the slot more stable.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] (1) By installing anchor rods on both sides of the crack and connecting the two anchor rods into a whole through the connecting components, the crack can be tightened to prevent the crack from expanding. All anchoring units are strung together with steel wire to form a reinforcement mesh on the crack, which facilitates the adhesion of the repair grout, improves the firmness of the repair layer, and prevents it from falling off.

[0021] (2) Since the width of the U-shaped groove is determined by the width of the crack, the width of the U-shaped groove is not consistent, which means that the spacing between the two anchor rods needs to be set according to the width of the U-shaped groove. The second connecting sleeve is slidably set on the connecting rod, and the spacing between the two insert rods can be adjusted at will, so it can be adapted to anchor rods with different spacing. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the anchoring unit;

[0023] Figure 2 This is a schematic diagram of the reinforced crack according to the present invention;

[0024] Figure 3 for Figure 2 A magnified view of a portion of the image;

[0025] In the diagram: 1-steel wire, 2-anchor rod, 3-slot, 4-mounting ear, 5-through hole, 6-connecting rod, 7-first connecting sleeve, 8-second connecting sleeve, 9-insertion rod, 10-crack, 11-U-shaped groove. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-3 A hyperbolic cooling tower reinforcement and repair device includes several anchoring units, a steel wire 1 that connects all the anchoring units in sequence, the anchoring units are made of stainless steel, the anchoring units include two anchor rods 2, a connecting assembly that connects the two anchor rods into a whole, the outer wall of the anchor rod 2 is provided with spiral patterns, and the top of the anchor rod 2 is provided with a slot 3.

[0028] The connecting assembly includes a connecting rod 6, a first connecting sleeve 7 fixedly connected to one end of the connecting rod, and a second connecting sleeve 8 slidably connected to the connecting rod. Insert rods 9 are fixedly connected to the bottom surfaces of both the first connecting sleeve 7 and the second connecting sleeve 8. The insert rods 9 are inserted into the slots 3 and bonded together with a special adhesive. Two anchor rods 2 are driven in along both sides of the crack. By sliding the second connecting sleeve 8, the distance between the two insert rods 9 can be adjusted. Using a ruler, the distance between the two insert rods 9 is made equal to the distance between the two anchor rods 2, so that the two insert rods 2 can be inserted into the two slots 3, thereby connecting the two anchor rods 2 into a whole through the connecting assembly. After the connecting assembly is connected to the two anchor rods 2, the anchoring unit forms a U-shape, thereby closing the crack and preventing it from widening. Before inserting the insert rod into the slot, a special adhesive needs to be applied to the outer wall of the insert rod to fix it to the slot. Acrylic structural adhesive can be used here, which has high strength, good sealing properties, and fast curing, completing initial curing in 3–5 minutes.

[0029] The inner wall of the slot 3 is provided with multiple vertical positioning grooves, and the outer wall of the insertion rod 9 is provided with multiple vertical positioning strips, which are inserted into the positioning grooves. The cooperation of the positioning grooves and positioning strips increases the contact area between the insertion rod 9 and the slot 3. Combined with special adhesive, the connection between the insertion rod and the slot is made more stable.

[0030] The two ends of the steel wire 1 are connected to two anchor rods 2 on the same side of two adjacent anchoring units to form a reinforcement mesh. The diameter of the steel wire 1 is greater than 1 mm, and the diameter is selected according to the width of the crack. Specifically, symmetrical mounting ears 4 are fixedly connected to both sides of the upper part of the anchor rod 2. The mounting ears 4 have through holes 5 that extend from top to bottom. The steel wire 1 is bound or welded into the through holes 5. When connecting the steel wire 1 to the anchor rod 2, the end of the steel wire 1 is first inserted into the through hole 5. Then, pliers can be used to tighten the steel wire onto the mounting ear 4, or a welding torch can be used to directly weld the steel wire 1 onto the mounting ear 4.

[0031] The method for reinforcing cracks according to this invention is as follows:

[0032] First, a U-shaped groove 11 is chiseled out along the crack 10, the width of which is determined by the width of the crack 10. Then, anchor holes are drilled on both sides of the crack 10 and within the U-shaped groove 11. Next, two anchor rods 2 are inserted into the two anchor holes. Then, based on the distance between the two anchor rods 2, the second connecting sleeve 8 is slid. Using a ruler, the distance between the two insert rods 9 is made equal to the distance between the two anchor rods 2, with both insert rods 9 pointing vertically downwards. The second connecting sleeve 8 is then fixed to the connecting rod 6 by welding or using special adhesive. The excess portion of the connecting rod 6 is then cut off using a cutting mechanism so that the connecting rod 6 can be placed within the U-shaped groove 11. If the width of the U-shaped groove 11 is sufficient, cutting the connecting rod 6 is not necessary. Next, special adhesive is applied to the outer wall of the insert rod 9, and the two insert rods 9 are inserted into the corresponding slots 3, thus connecting the two anchor rods 2 into a whole, forming a set of anchoring units. Several anchoring units are installed along the crack in this manner, and then all anchoring units are connected in series using steel wire 1 to form a reinforcement mesh.

[0033] Then, fiber-reinforced concrete repair mortar is injected into the crack. After the crack is filled, modified epoxy-based concrete crack reinforcement grouting material is used for on-site grouting and covered with reinforcement mesh until the U-shaped trench 11 is filled, thus completing the crack repair.

[0034] Specifically, modified epoxy-based crack grouting materials must not contain volatile solvents or non-reactive diluents; the chloride ion content in the grouting material must not exceed 0.05% of the cementitious material's mass. No grouting material should corrode reinforcing bars, metal anchors, or embedded parts.

[0035] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hyperbolic cooling tower reinforcement and repair device, characterized in that: The system includes several anchoring units, a steel wire (1) that connects all the anchoring units in sequence, an anchoring unit including two anchor rods (2), and a connecting component that connects the two anchor rods into a whole. The top of the anchor rod (2) is provided with a slot (3). The connecting component is detachably connected to the slot (3). After the connecting component is connected to the two anchor rods (2), the anchoring unit is U-shaped. The two ends of the steel wire (1) are connected to the two anchor rods (2) on the same side of the two adjacent anchoring units to form a reinforcement mesh.

2. The hyperbolic cooling tower reinforcement and repair device according to claim 1, characterized in that: The upper part of the anchor rod (2) is fixedly connected to symmetrical mounting ears (4) on both sides. The mounting ears (4) are provided with through holes (5) that run through the upper and lower parts. The steel wire (1) is tied or welded in the through hole (5).

3. The hyperbolic cooling tower reinforcement and repair device according to claim 2, characterized in that: The connecting assembly includes a connecting rod (6), a first connecting sleeve (7) fixedly connected to one end of the connecting rod, and a second connecting sleeve (8) slidably connected to the connecting rod. The bottom surfaces of the first connecting sleeve (7) and the second connecting sleeve (8) are both fixedly connected with insert rods (9). The insert rods (9) are inserted into the slots (3) and bonded together with special adhesive.

4. The hyperbolic cooling tower reinforcement and repair device according to claim 3, characterized in that: The inner wall of the slot (3) is provided with multiple vertical positioning slots, and the outer wall of the insert rod (9) is provided with multiple vertical positioning strips, which are inserted into the positioning slots.

5. The hyperbolic cooling tower reinforcement and repair device according to claim 4, characterized in that: The outer wall of the anchor rod (2) is provided with spiral patterns.

6. The hyperbolic cooling tower reinforcement and repair device according to claim 5, characterized in that: The anchoring unit is made of stainless steel.

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