Underground gravity energy storage weight continuous lifting device
By connecting multiple small wellheads and small diameter well pipes and using fixed pulleys and moving pulley technologies, the problem of high construction cost of gravity energy storage equipment caused by terrain factors is solved, and the synchronous lifting and lowering of small well pipes is achieved, thus reducing the energy storage equipment construction costs and meet energy storage requirements.
Patent Information
- Application Number
- CN202420829643.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-04-22
AI Technical Summary
The construction cost of existing gravity energy storage equipment is high, mainly due to the limitations of terrain factors, which leads to the high cost of construction of large wellheads and large diameter wells, making it difficult to implement in all terrain.
Using multiple small wellheads and small diameter well pipes and connected by traction ropes, the weight of heavy objects is shared to form a well position group. The stability and integration of the traction rope are ensured by using fixed pulleys and moving pulleys, and the synchronous lifting of heavy objects in multiple well pipes is achieved. , reducing construction costs.
On the premise of meeting energy storage requirements, the overall construction cost of gravity energy storage equipment is reduced through the construction of small wellhead well pipes, and the effective conversion of electrical energy and gravity potential energy is achieved.
Smart Images
Figure CN222273835U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of gravity energy storage equipment, in particular to an underground gravity energy storage heavy object continuous lifting device. Background Art
[0002] Gravity energy storage technology refers to the vertical lifting of heavy objects from underground by the traction of steel wire ropes under the action of a driving motor, thereby completing the conversion between gravitational potential energy and electrical energy.
[0003] Gravity energy storage equipment is composed of multiple energy storage units. An energy storage unit usually mainly includes a group of weights, a reel and a well pipe mined from the ground. In order to meet the energy storage capacity, the mass of the weights is generally large, and the volume of the weights is also large. Therefore, the required well sites are generally large wellheads and large diameter well sites. However, due to the limitations of the surrounding geographical environment, many terrains are not suitable for the construction of well sites with large wellheads. In the process of excavating and constructing well sites with large wellheads, a lot of manpower and material resources are consumed, and the construction cost of gravity energy storage equipment is relatively high.
[0004] Therefore, it is necessary to propose an underground gravity energy storage heavy object continuous lifting device so as to reduce the construction cost of the gravity energy storage equipment while meeting the energy storage requirements. Utility Model Content
[0005] The purpose of the utility model is to solve the problem that the existing gravity energy storage equipment is affected by terrain factors, resulting in high construction costs, and now provides an underground gravity energy storage heavy object continuous lifting device.
[0006] The technical solution of the utility model is:
[0007] An underground gravity energy storage heavy object continuous lifting device, comprising a well pipe, a drum and a weight, the drum is driven to rotate by a power device, the well pipes are arranged in a chain to form a well position group, two fixed pulleys are arranged at the intersection of two adjacent well pipes, the two fixed pulleys are arranged in parallel and are respectively located at the top of the two adjacent well pipes;
[0008] The weight is equipped with a movable pulley, and the drum is wound with a traction rope. The traction rope enters from the head end of the well group and passes through the fixed pulley and the movable pulley of each wellhead, and the traction rope passes through the end of the well group and is fixed to the well pipe at the end of the well group. The rotation of the drum enables the traction rope to drive the weight to rise and fall.
[0009] Furthermore, the well position groups are arranged in a circular chain shape, and the well pipe at the head end of the well position group is connected to the well pipe at the end of the well position group.
[0010] Furthermore, it also includes a support frame fixed to the ground, the support frame is located at the top of the well pipe, and the fixed pulley is installed on the support frame.
[0011] Furthermore, the well position groups are arranged in a rectangular chain, and the well pipe at the head end of the well position group is connected with the well pipe at the end of the well position group.
[0012] Furthermore, one end of the traction rope is wound around a drum, and the other end thereof is fixed to a fixed pulley of the well pipe at the end of the well position group.
[0013] Furthermore, there are four well pipes, which are arranged in a rectangular chain to form a square, and the wall thickness of the four well pipes is consistent, and the diameter of the four well pipes is the same.
[0014] Furthermore, the well pipes can be arranged in a circular chain to form a circle.
[0015] Furthermore, there are six well pipes, which are arranged in a rectangular chain to form a rectangle, and the wall thickness of the six well pipes is consistent, and the diameters of the six well pipes are the same.
[0016] Furthermore, each well pipe has two fixed pulleys on the top, and the two fixed pulleys in the same well pipe are vertically arranged.
[0017] Furthermore, the traction rope is a steel wire rope.
[0018] The utility model discloses an underground gravity energy storage heavy object continuous lifting device. Compared with the traditional technology, multiple well pipes are connected together by a traction rope, so that when storing energy, the traction rope can simultaneously drive the weights in all the well pipes to rise and fall, thereby realizing the conversion between electric energy and gravitational potential energy. Since the traction rope is respectively located at the top of two adjacent well pipes, when the traction rope enters from the previous well pipe to the next well pipe, the fixed pulley can timely support the traction rope, thereby ensuring the integrity of the weights between the multiple well pipes. Since the two fixed pulleys are arranged in parallel to each other, when the traction rope enters from the fixed pulley of the previous well pipe to the fixed pulley of the next well pipe, the force direction of the traction rope can remain unchanged, so that the movement of the traction rope is all in the same plane, thereby ensuring the stability of the lifting of the heavy object.
[0019] When the cost of building a well pipe (well location) with a large wellhead and a large diameter is high due to geographical factors, while the cost of building a well pipe with a small wellhead and a small diameter is low, you can choose to dig and build multiple well pipes with small wellheads and small diameters, and share the total weight of the required heavy objects among the heavy objects in each small well pipe. Finally, use a traction rope to connect all the heavy objects in the chain-like well pipes in series. At this time, when the drum rotates and the traction rope drives the heavy objects to rise and fall, the weight of the heavy objects in the multiple small well pipes is equivalent to the weight of a heavy object with a large wellhead and a large diameter. This reduces the construction cost of the gravity energy storage equipment while ensuring that the conversion power between electrical energy and gravitational potential energy can meet the requirements of the energy storage equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a structural reference diagram of the utility model;
[0021] Figure 2 The utility model of the well position group and the fixed pulley combination Figure 1 ;
[0022] Figure 3 The utility model of the well position group and the fixed pulley combination Figure 2 ;
[0023] Figure 4 The utility model of the well position group and the fixed pulley combination Figure 3 ;
[0024] Figure 5 This is a structural diagram of the well group of the utility model.
[0025] Figure numerals: 1, well pipe; 2, drum; 3, weight; 4, well position group; 5, fixed pulley; 6, movable pulley; 7, traction rope; 8, support frame. DETAILED DESCRIPTION
[0026] In order to make the technical means, technical features, utility model objectives and technical effects achieved by the utility model easy to understand, the utility model is further explained below with reference to specific illustrations.
[0027] The following embodiments realize the use of a well pipe 1 with multiple small well openings, meet the energy storage requirements, and also reduce the construction cost of the gravity energy storage equipment.
[0028] Embodiment 1:
[0029] like Figure 1 , Figure 2 and Figure 5 As shown, this embodiment provides an underground gravity energy storage heavy object continuous lifting device, including a well pipe 1, a drum 2 and a weight 3, the drum 2 is driven to rotate by a power device, the well pipes 1 are arranged in a chain shape to form a well group 4, two fixed pulleys 5 are provided at the intersection of two adjacent well pipes 1, the two fixed pulleys 5 thereat are arranged oppositely and parallel and are respectively located at the top of the two adjacent well pipes 1, the weight 3 is fixedly installed with a movable pulley 6 using screws, the drum 2 is wrapped with a traction rope 7, the traction rope 7 enters from the head end of the well group 4 and passes through the fixed pulley 5 and the movable pulley 6 of each wellhead, the traction rope 7 passes through the end of the well group 4 and is fixed to the well pipe 1 at the end of the well group 4, the drum 2 rotates so that the traction rope 7 drives the weight 3 to rise and fall, preferably, the power device is a drive-generator integrated machine, the drive-generator integrated machine is connected to the drum 2 by a coupling and a key connection, and drives the drum 2 to rotate.
[0030] Preferably, it also includes a support frame 8 fixed to the ground by screws, the support frame 8 is located at the top of the well pipe 1, and the fixed pulley 5 is fixedly mounted on the support frame 8 by screws, and the fixed pulley 5 can be fixed by the support frame 8.
[0031] Preferably, the well position group 4 is arranged in a rectangular chain shape, and the well pipe 1 at the head end of the well position group 4 is connected to the well pipe 1 at the end of the well position group 4. Preferably, one end of the traction rope 7 is wound around the drum 2, and the other end is fixed to the fixed pulley 5 of the well pipe 1 at the end of the well position group 4 by welding or screws. The traction rope 7 passes through the fixed pulley 5, the movable pulley 6 and the fixed pulley 5 in the well pipe 1 in turn, so as to achieve traction of the weight 3 in one well pipe 1, and the fixed pulleys 5 and movable pulleys 6 in the remaining well pipes 1 are connected in series in this order to form a whole. When the drum 2 rotates, the traction rope 7 can drive all the weights 3 in the well position group 4 to rise and fall synchronously, and at the same time, the conversion of electrical energy and gravitational potential energy is carried out.
[0032] Preferably, there are four well pipes 1, which are arranged in a rectangular chain to form a square. Specifically, the centers of the four well pipes 1 are connected in sequence to form a square. The wall thickness of the four well pipes 1 is consistent, the diameter of the four well pipes 1 is the same, and the four well pipes 1 form a square well position group 4. Preferably, at this time, each well pipe 1 has two fixed pulleys 5 on the top, and the two fixed pulleys 5 in the same well pipe 1 are vertically arranged.
[0033] Preferably, the traction rope 7 is a steel wire rope, and the structural strength of the steel wire rope can meet the requirements of the movable pulley 6 and the fixed pulley 5 when pulling the heavy object 3.
[0034] Preferably, the fixed pulleys 5 are of the same type, size and material, and the movable pulleys 6 are of the same type, size and material.
[0035] When in use, multiple well pipes 1 are connected together by the traction rope 7, so that when storing energy, the traction rope 7 can simultaneously drive the weights 3 in all the well pipes 1 to rise and fall, thereby realizing the conversion between electrical energy and gravitational potential energy. Since they are respectively located at the tops of two adjacent well pipes 1, when the traction rope 7 enters the next well pipe 1 from the previous well pipe 1, the fixed pulley 5 can timely support the traction rope 7, thereby ensuring the integrity of the weights 3 between the multiple well pipes 1. Since the two fixed pulleys 5 are arranged oppositely and in parallel, when the traction rope 7 enters the fixed pulley 5 of the next well pipe 1 from the fixed pulley 5 of the previous well pipe 1, the force direction of the traction rope 7 can remain unchanged, so that the movement of the traction rope 7 is all in the same plane, thereby ensuring the stability of the lifting of the weight 3.
[0036] When the cost of constructing a well pipe 1 (well location) with a large wellhead and a large diameter is high due to geographical factors, while the cost of constructing a well pipe 1 with a small wellhead and a small diameter is low, it is possible to choose to dig and construct multiple well pipes 1 with small wellheads and small diameters, and distribute the total weight of the required weights 3 to the weights 3 in each small well pipe 1, and finally use the traction rope 7 to connect all the weights 3 in the chain-like well pipes 1 in series. At this time, when the drum 2 rotates and the traction rope 7 drives the weights 3 to rise and fall, the weights 3 of the multiple small well pipes 1 are equivalent to the weight of one weight 3 with a large wellhead and a large diameter, so that the conversion power between electrical energy and gravitational potential energy can meet the requirements of the energy storage equipment, thereby reducing the construction cost of the gravity energy storage equipment.
[0037] Embodiment 2:
[0038] The similarities between this embodiment and the first embodiment are not repeated here, and the differences are as follows:
[0039] like Figure 1 and Figure 3 As shown, the well position group 4 is arranged in a circular chain shape, and the well pipe 1 at the head end of the well position group 4 is connected with the well pipe 1 at the end of the well position group 4. Preferably, the well pipe 1 can be arranged in a circular chain to form a circle or a polygon. It should be noted that no matter how and in what shape the well pipe 1 is arranged, at least two fixed pulleys 5 and one movable pulley 6 must be set in a single well pipe 1. The two fixed pulleys 5 are responsible for cooperating with the fixed pulleys 5 in the well pipes 1 adjacent to the left and right to jointly support the movement of the traction rope 7, and the movable pulley 6 is located between the two fixed pulleys 5 and must comply with the installation specifications of the fixed pulley 5 and the movable pulley 6. This arrangement can also realize the operation mode of connecting the well pipes 1 of multiple small wellheads in series.
[0040] Embodiment three:
[0041] Preferably, Figure 1 and Figure 4 As shown, there are six well pipes 1, and the six well pipes 1 are arranged in a rectangular chain to form a rectangle, specifically, the centers of the six well pipes 1 can form a rectangle after being connected in sequence, the wall thickness of the six well pipes 1 is consistent, the diameter of the six well pipes 1 is the same, the well pipes 1 at the corners of the rectangle, the two fixed pulleys 5 in each well pipe 1 appear vertical, and the well pipes 1 in the middle of the "long side" of the rectangle, the two fixed pulleys 5 in each well pipe 1 are parallel to each other. It should be noted that no matter how and in what shape the well pipes 1 are arranged, at least two fixed pulleys 5 and one movable pulley 6 must be set in a single well pipe 1, and the two fixed pulleys 5 are responsible for cooperating with the fixed pulleys 5 in the well pipes 1 adjacent to the left and right to jointly support the movement of the traction rope 7, and the movable pulley 6 is located between the two fixed pulleys 5 and must comply with the installation specifications of the fixed pulleys 5 and the movable pulleys 6.
Claims
1. An underground gravity energy storage heavy object continuous lifting device, comprising a well pipe (1), a drum (2) and a heavy object (3), wherein the drum (2) is driven to rotate by a power device, and characterized in that: The well pipes (1) are arranged in a chain shape to form a well position group (4), and two fixed pulleys (5) are provided at the intersection of two adjacent well pipes (1), wherein the two fixed pulleys (5) are arranged opposite to each other in parallel and are respectively located at the top of the two adjacent well pipes (1); The weight (3) is installed with a movable pulley (6), and the drum (2) is wound with a traction rope (7). The traction rope (7) enters from the head end of the well group (4) and passes through the fixed pulley (5) and the movable pulley (6) of each wellhead. The traction rope (7) passes through the end of the well group (4) and is fixed to the well pipe (1) at the end of the well group (4). The drum (2) rotates so that the traction rope (7) drives the weight (3) to rise and fall.
2. The underground gravity energy storage heavy object continuous lifting device according to claim 1 is characterized in that: The well position group (4) is arranged in a circular chain shape, and the well pipe (1) at the head end of the well position group (4) is connected to the well pipe (1) at the end end of the well position group (4).
3. The underground gravity energy storage heavy object continuous lifting device according to claim 1 is characterized in that: It also includes a support frame (8) fixed to the ground, the support frame (8) is located on the top of the well pipe (1), and the fixed pulley (5) is installed on the support frame (8).
4. The underground gravity energy storage heavy object continuous lifting device according to claim 3 is characterized in that: The well position groups (4) are arranged in a rectangular chain shape, and the well pipe (1) at the head end of the well position group (4) is connected to the well pipe (1) at the end end of the well position group (4).
5. The underground gravity energy storage heavy object continuous lifting device according to claim 3 is characterized by: One end of the traction rope (7) is wound around the drum (2), and the other end is fixed to the fixed pulley (5) of the well pipe (1) at the end of the well group (4).
6. The underground gravity energy storage heavy object continuous lifting device according to claim 4 is characterized in that: Four well pipes (1) are provided, and the four well pipes (1) are arranged in a rectangular chain to form a square. The wall thickness of the four well pipes (1) is the same, and the diameter of the four well pipes (1) is the same.
7. The underground gravity energy storage heavy object continuous lifting device according to claim 2 is characterized by: The well pipes (1) can form a circle after being arranged in a ring-shaped chain.
8. The underground gravity energy storage heavy object continuous lifting device according to claim 4 is characterized by: The well pipes (1) are provided in six pieces, and the six well pipes (1) are arranged in a rectangular chain to form a rectangle, the wall thickness of the six well pipes (1) is the same, and the diameter of the six well pipes (1) is the same.
9. The underground gravity energy storage heavy object continuous lifting device according to claim 6, characterized in that: Each well pipe (1) has two fixed pulleys (5) at the top, and the two fixed pulleys (5) in the same well pipe (1) are arranged vertically.
10. The underground gravity energy storage heavy object continuous lifting device according to claim 1, characterized in that: The traction rope (7) is a steel wire rope.