CN214270035U

CN214270035U - Hoisting system device and hoisting device for megawatt tower type heat collector

Info

Publication number: CN214270035U
Application number: CN202022312278.6U
Authority: CN
Inventors: 黄鑫; 汤子龙; 王应庚; 谭杰; 袁大鹏; 覃树方
Original assignee: China Energy Construction Group Hunan Thermal Power Construction Co ltd
Current assignee: China Energy Construction Group Hunan Thermal Power Construction Co ltd; Shanghai Electric Group Corp
Priority date: 2020-10-16
Filing date: 2020-10-16
Publication date: 2021-09-24
Anticipated expiration: 2030-10-16

Abstract

A hoisting system device for a megawatt tower type heat collector is characterized in that a heat absorption tower is arranged on the ground at the position where a tower type photo-thermal power generation heat collector is installed, and an internal space for hoisting the tower type photo-thermal power generation heat collector is reserved in the heat absorption tower according to the size of the tower type photo-thermal power generation heat collector; and then, hoisting the megawatt tower type photo-thermal power generation heat collector integrally from the bottom inside the heat absorption tower to the top of the heat absorption tower by using a portal frame and a hydraulic crane from the top of the heat absorption tower by utilizing the space in the heat absorption tower, and then integrally installing and positioning. The utility model discloses an inside tower solar thermal power generation heat collector hoist and mount to the top of the tower of megawatt level of heat absorption tower, can effectively shorten the time limit for a project, reduce a large amount of high altitude construction for safe construction obtains very big assurance.

Description

Hoisting system device and hoisting device for megawatt tower type heat collector

Technical Field

The utility model relates to a hoisting device of a tower type photo-thermal power generation system, in particular to a hoisting system device of a megawatt tower type heat collector; the hoisting system device of the megawatt tower type heat collector can effectively prevent the megawatt tower type photo-thermal power generation heat collector from being out of order in the hoisting process; belongs to the technical field of heavy object hoisting operation.

Background

The solar photo-thermal power generation is realized by collecting solar heat energy by utilizing a large-scale array parabolic or dish-shaped mirror surface, providing steam through a heat exchange device and combining the process of a traditional turbonator. The solar photo-thermal power generation technology is adopted, so that an expensive silicon crystal photoelectric conversion process is avoided, and the cost of solar power generation can be greatly reduced. Moreover, the solar energy utilization in the form has an incomparable advantage compared with other forms of solar energy conversion, namely water heated by solar energy can be stored in a huge container, and a turbine can still be driven to generate electricity for several hours after the sun lands. Therefore, as the technology is improved continuously and the environmental protection is paid more and more attention in the world, the solar photo-thermal power generation is more and more commonly applied in all parts of the world and the power of the power generation is also more and more increased as the photo-thermal power generation is taken as a clean energy source. Solar photo-thermal power generation becomes an important direction for new energy utilization.

According to different solar energy collection modes, solar photo-thermal power generation is mainly divided into four types, namely tower type, groove type, disc type and linear Fresnel type. The tower type solar photo-thermal power generation has better development prospect because the tower type solar photo-thermal power generation has the comprehensive advantages of slot type, butterfly type, linear Fresnel type and the like which are difficult to compare favorably in the aspects of scale, photoelectric conversion efficiency, investment cost and the like, and the development and research of the tower type photo-thermal power generation technology are more and more concerned in all countries at present.

The tower-type solar photo-thermal power generation mainly comprises a heliostat field consisting of a plurality of heliostats, solar energy is reflected and concentrated on a high-temperature receiver (also called a heat collector) at the top of a high tower in the middle of the heliostat field, is converted into heat energy, is transmitted to a working medium to be heated, passes through a heat accumulator and is input into a heat engine to drive a generator to generate power. The tower type photo-thermal power generation system consists of five subsystems, namely a light condensation subsystem, a heat collection subsystem, a power generation subsystem, a heat storage subsystem and an auxiliary energy subsystem. Wherein, the light-gathering subsystem and the heat-collecting subsystem form the core technology. One key point for the construction and installation of the tower type photo-thermal power station is the installation of the heat collector. Along with the increasing power of solar photo-thermal power generation, the heat collector is also increasing, and the heat collector is generally integrally hoisted to the heat absorption tower after being combined on the ground, so that the total project period can be shortened, and the installation quality can be ensured. At present, the heat collectors are all installed by adopting tower cranes, which is still applicable to small and medium-sized tower type solar photo-thermal power generation systems below megawatt level, but once the megawatt level is reached, a simple tower type hoisting mode is adopted, which is very difficult, and a hoisting task can be completed only by the cooperative coordination of a plurality of tower cranes; if the tower is disassembled for hoisting, the assembly is needed on the top of the tower, which causes much inconvenience to the construction, so that the improvement is needed.

Through patent search, no relevant patent technical literature reports are found, the most relevant patent technical literature is a paper, and the relevant literature includes the following:

1. the utility model is a utility model with the patent number of CN201920324645.9 and the name of 'a construction device for building electrical equipment', the patent discloses a building electrical equipment construction equipment, including the portal frame, the inside level of portal frame is equipped with the fixed plate, the below of fixed plate is equipped with clamping mechanism, the both sides of fixed plate are all fixed and are equipped with the head rod, the equal vertical first bar hole of having seted up of inside wall that the portal frame is relative, the equal vertical one-way screw rod that is equipped with in inside in two first bar holes, the both ends of two one-way screw rods are all rotated with the upper and lower both sides that correspond first bar groove through first antifriction bearing and are connected and the upper end all runs through to the top of portal frame and all fix and be equipped with first bevel gear, the equal sliding connection in inside in two first bar grooves has first movable block, the upside of two first movable blocks all is through the pole wall threaded connection of first screw hole and two one-way screw rods.

2. The utility model discloses a patent for CN202010365560.2, the utility model discloses a utility model patent of "a slot type solar collector hoist and mount positioning method", this patent discloses a slot type solar collector hoist and mount positioning method, include: s1, hoisting the two groove type solar heat collectors; s2, hoisting the rest of the trough type solar thermal collectors; and S3, adjusting and connecting the groove type solar heat collector. When the trough type solar thermal collector is lifted, all the trough type solar thermal collectors are matched with the positioning shaft and the positioning hole to position the center position, and then the orientation of the trough type solar thermal collector is adjusted. When the indication readings of the leveling instrument aligned to the tower rulers hung at the symmetrical structural positions on the cantilevers at the left side and the right side of the trough-type solar heat collector are the same, the indication that the trough-type solar heat collector is just upward in the positive direction is meant. All the groove type solar heat collectors can be conveniently adjusted to be upwards forward and then fixedly connected with the adjacent groove type solar heat collectors.

3. The patent number is CN201620778657.5, the utility model patent of "light and heat electricity generation heat collector module integral hoisting hoist" this patent discloses light and heat electricity generation heat collector module integral hoisting hoist, and it is big to have solved heat collector module overall dimension, hoists difficult technical problem. The central position of cross arm is provided with U-shaped front bracket in the front, and the central position of cross arm is provided with U-shaped rear bracket in the back, and the torque tube on the heat collector module sets up in U-shaped front bracket and U-shaped rear bracket, has connect preceding semicircular staple bolt in the front end of torque tube lock, and preceding semicircular staple bolt links together with U-shaped front bracket, has connect latter half circular staple bolt in the rear end lock of torque tube, and latter half circular staple bolt links together with U-shaped rear bracket.

Through the analysis of the patent documents, the inventor finds that the patents relate to hoisting, and also relate to the research on integral hoisting of the solar-thermal power generation heat collector module, and also provides some improved technical schemes, but the technical schemes still have some problems, and still do not solve the problems that how to solve the problems that the tower type solar photo-thermal power generation heat collector is too heavy and how to carry out integral hoisting in the hoisting process, so that a plurality of unexpected problems and faults still occur in the practical application, and therefore further research is still needed.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an it is not enough to current megawatt tower heat collector hoist and mount system device existence, proposes a new megawatt tower heat collector hoist and mount system device, and this kind of megawatt tower heat collector hoist and mount system device can wholly hoist to the top of the tower from the heat absorption tower is inside, effectively shortens the time limit for a project, reduces a large amount of high altitude construction for safe construction obtains very big assurance.

In order to achieve the purpose, the utility model provides a hoisting system device of a megawatt tower type heat collector, which comprises a heat absorption tower, a plurality of portal frames, a hydraulic crane, a heat collector bottom supporting beam and a lifting lug; the portal frame is arranged at the top of the heat absorption tower, the hydraulic crane is arranged on the portal frame and is provided with a hydraulic steel strand jack, and the hydraulic steel strand jack is connected with the lifting lug through a steel strand; the hoisting system of the tower type photo-thermal power generation heat collector is formed by combining a plurality of gantries provided with hydraulic cranes, and the whole tower type photo-thermal power generation heat collector is hoisted to the top of a heat absorption tower from the inner space of the heat absorption tower through the matching of a hydraulic steel strand jack of the hydraulic crane and a supporting beam and a lifting lug at the bottom of the heat collector; the plurality of door frames are annularly arranged around the top of the heat absorption tower, and the door frames are connected into a whole through I-shaped steel and a fastening piece at the top of the heat absorption tower, so that the door frames are prevented from swinging under the influence of wind power in the hoisting process; each portal is provided with a hydraulic crane, and the hydraulic steel strand penetrates through the hydraulic crane; the hydraulic steel strand jack is lifted or pulled by sequentially extending or retracting a jack piston; the hydraulic steel strand jack is provided with a wedge-shaped clamping mechanism, the wedge-shaped clamping mechanism automatically locks the steel strand, the steel strand passes through the jack when the piston extends out, and then the steel strand is locked at a new position when the piston retracts and resets.

Furthermore, the lower end of the hydraulic steel strand is connected with a lifting lug, and the lifting lug is connected with the tower type photo-thermal power generation heat collector through a bottom supporting beam of the heat collector; on one hand, the bottom supporting beam of the heat collector is connected to the bottom of the tower type solar-thermal power generation heat collector through a fastener, and plays a supporting role in supporting the tower type solar-thermal power generation heat collector; on the other hand, a hoisting block protrudes upwards from the outer end part of the bottom supporting beam of the heat collector, and a bolt matched with the hoisting block is inserted into the hoisting lug through the hoisting block and is connected with the hoisting lug.

Furthermore, a movable fixed anchor block is arranged on a supporting cross beam at the bottom of the heat collector; the fixed anchor block consists of two cross beams, namely an upper fixed anchor block and a lower fixed anchor block; the middle parts of the upper fixing anchor block and the lower fixing anchor block are connected into a whole by a screw, and the vertical distance between the upper fixing anchor block and the lower fixing anchor block is 2450 mm; the fixed anchor block is hung on a track below a supporting cross beam at the bottom of the heat collector through a bracket and is driven to move by a push-pull oil cylinder.

Furthermore, a hoisting block integrally connected with the bottom supporting beam of the heat collector protrudes upwards from the outer end part of the bottom supporting beam of the heat collector, and a bolt matched with the lifting lug is arranged on the hoisting block; during hoisting, the lifting lugs fall into the hoisting blocks, are inserted into the lifting lugs through the bolts on the hoisting blocks and are connected with the lifting lugs; the steel strand coming out of the jack is guided through a supporting box guide pipe arranged above the portal frame and then passes through a reserved opening on the working platform through a deflection pipe of a lifting frame in the landing leg of the gantry hanger frame, so that the steel strand is suspended along the outer side tower wall.

Furthermore, in order to avoid damage to the heat collector equipment caused by collision during hoisting, the outer end part of the bottom supporting beam of the heat collector is provided with an anti-collision block, the anti-collision block is fixed at the outer end part of the bottom supporting beam of the heat collector by using bolts, and the anti-collision block prevents the heat collector from colliding with the inner wall of the concrete tower body.

Furthermore, the anti-collision block consists of a connecting steel plate and a rubber block and is fixed on the outer end part of the bottom supporting beam of the heat collector by bolts; the fixing anchor is connected below the supporting cross beam at the bottom of the heat collector, and after the tower type solar-thermal power generation heat collector is hoisted to the top, the fixing anchor moves into a groove in the wall of the cylinder at the top of the heat absorption tower through the moving device and is locked and fixed.

If the tower type photo-thermal power generation heat collector needs to be temporarily descended, in the descending process, the automatic operation of covering the hydraulic steel strand jack by a secondary hydraulic system by using a clamping mechanism in the hydraulic steel strand jack is needed; the jack can be opened without lifting in the resetting process, and the steel strand is allowed to pass through the lower handle when actually put down.

The fault protection mechanism in the hydraulic steel strand jack can ensure that the load is automatically locked in the bottom anchoring piece of the jack when any hydraulic fault or power supply fault occurs.

Further, a facility is provided for stopping the lifting operation at any part of the jack stroke and transferring the load from the hydraulic system to the mechanical means of the bottom anchor, thereby eliminating the need to hold the load on the hydraulic system for a long time. As an additional function, both the jack piston and the main anchor below the jack can be serviced with the jack system suspended, if desired. The distal ends of the lifting strands are secured using an anchor block having the same braking mechanism as used in the jack.

The utility model has the advantages that: the tower type photo-thermal power generation heat collector is integrally hoisted by utilizing the internal space of the center of the heat absorption tower, so that the installation time can be saved, and the installation quality can be improved; the following advantages are mainly provided:

1. the utility model provides a heat collector go from promoting in the tower, the even atress of operation process avoids single hoisting device because of transshipping, has improved safety and stability nature.

2. In continuous promotion in-process, because of external environment difference in temperature round clock, change such as the face sun back of the body yin difference in temperature, make the tower body have certain deformation, the utility model relates to a neotype anticollision measure has solved heat collector and tower inner wall collision problem.

3. The hoisting method is optimized, the coordination command is unified, the technical problems of long-time hoisting, weight unloading and the like are solved, and the safety of equipment hoisting is improved.

4. The utility model provides a hoist and mount operation standard table provides the experience that can supply the reference for follow-up similar hoist and mount.

Drawings

Fig. 1 is a schematic structural view of a hoisting system according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a hoisting portal system according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a fixing anchor and a crash suit according to an embodiment of the present invention;

FIG. 4 is a schematic view of the three-dimensional structure of the anchor block and the anti-collision device of the present invention;

FIG. 5 is an enlarged schematic view of the anti-collision device of the present invention;

fig. 6 is the structure schematic diagram of the installation position of the fixing anchor block of the present invention.

Detailed Description

The invention will be further elucidated with reference to the drawings and specific embodiments.

Example one

As shown in the attached drawing, the hoisting device for hoisting the megawatt tower type heat collector by using the hoisting portal 1 is shown in the attached drawing and comprises a heat absorption tower 6, a plurality of portals 2, a hydraulic crane 3 and a lifting lug 11; the gantry is arranged at the top of the heat absorption tower, the hydraulic crane is arranged on the gantry, the hydraulic crane 3 is provided with a hydraulic steel strand jack 4, and the hydraulic steel strand jack 4 is connected with the lifting lug 11 through a steel strand 7; a plurality of gantries 2 provided with hydraulic cranes 3 are combined to form a hoisting system of the tower type photo-thermal power generation heat collector, and the tower type photo-thermal power generation heat collector is integrally hoisted to a heat absorption tower top 5 through a hydraulic steel strand jack 7 of the hydraulic crane.

The tower type photo-thermal power generation heat collector hoisting system formed by combining a plurality of gantries provided with hydraulic cranes is shown in the attached figure 2, and comprises a plurality of gantries 2 annularly arranged around the top of a heat absorption tower, wherein the gantries 2 are connected into a whole at the top of the heat absorption tower through I-shaped steel and fasteners, so that the gantries are prevented from swinging under the influence of wind power in the hoisting process; each portal frame is provided with a hydraulic crane 3, and a hydraulic steel strand penetrates through the hydraulic crane; the hydraulic steel strand jack is lifted or pulled by sequentially extending or retracting a jack piston; the hydraulic steel strand jack is provided with a wedge-shaped clamping mechanism, the wedge-shaped clamping mechanism automatically locks the steel strand, the steel strand passes through the jack when the piston extends out, and then the steel strand is locked at a new position when the piston retracts and resets; the lower end of the hydraulic steel strand is connected with a lifting lug 11, and the lifting lug 11 is connected with the tower type photo-thermal power generation heat collector through a heat collector bottom supporting beam 12; on one hand, the bottom supporting beam 12 of the heat collector is connected to the bottom 13 of the tower type solar-thermal power generation heat collector through a fastener, and as shown in the attached drawing 3, the bottom supporting beam plays a supporting role on the tower type solar-thermal power generation heat collector; on the other hand, a hoisting block 14 protrudes upwards from the outer end part of the bottom supporting beam 12 of the heat collector, and a bolt matched with the hoisting lug through the hoisting block 14 is inserted into the hoisting lug and connected with the hoisting lug 11; in order to avoid damage to heat collector equipment caused by collision during hoisting, an anti-collision block 15 is arranged at the outer end part of a heat collector bottom supporting cross beam 12, the anti-collision block 15 is fixed at the outer end part of the heat collector bottom supporting cross beam 12 by bolts, and the anti-collision block 15 is used for preventing the heat collector from colliding with the inner wall of a concrete tower body; the anti-collision block 15 is composed of a connecting steel plate and a rubber block and is fixed on a supporting cross beam at the bottom of the heat collector by bolts, as shown in the attached figure 4.

A movable fixed anchor block 16 is arranged on a supporting beam 12 at the bottom of the heat collector, as shown in figure 5; the fixed anchor block 16 consists of two cross beams, namely an upper fixed anchor block 17 and a lower fixed anchor block 18; the middle parts of the upper fixing anchor block and the lower fixing anchor block are connected into a whole by a screw 19, and the vertical distance between the upper fixing anchor block and the lower fixing anchor block is 2450 mm. The fixed anchor block 16 is hung on a track below the bottom supporting beam 12 of the heat collector through a bracket 20 and is driven to move by a push-pull oil cylinder 21.

If the tower type photo-thermal power generation heat collector needs to be temporarily descended, in the descending process, the automatic operation of covering the hydraulic steel strand jack by a secondary hydraulic system by using a clamping mechanism in the hydraulic steel strand jack is needed; the jack can be opened without lifting in the resetting process, and the steel strand is allowed to pass through the lower handle when actually put down. The fault protection mechanism in the hydraulic steel strand jack can ensure that the load is automatically locked in the bottom anchoring piece of the jack when any hydraulic fault or power supply fault occurs. This same feature also provides a facility for stopping the lifting operation and transferring the load from the hydraulic system to the mechanical means of the bottom anchor at any part of the jack stroke, thereby eliminating the need to hold the load on the hydraulic system for long periods of time. As an additional function, both the jack piston and the main anchor below the jack can be serviced with the jack system suspended, if desired. The distal ends of the lifting strands are secured using an anchor block having the same braking mechanism as used in the jack.

The integral hoisting method of the heat collector comprises the following steps: and 16 gantries and hydraulic cranes are arranged at the top of the heat absorption tower and are used as main machines for lifting the heat collector. Each set of hydraulic device puts down 12 steel strands from the tower, and 16 groups of steel strands are respectively connected with a steel beam lifting lug at the bottom of the heat collector by using an anchor and a pin shaft. And loosening bolts between the heat collector and the ring beam to lift the heat collector by 5 m. Disassembling the sliding device and the supporting ring beam; mounting a support beam sliding device; connecting the support beam to the sliding device; lifting the heat collector to an embedding height; pushing the support beam into the groove of the cylinder wall; the heat collector is in place; and (5) checking and accepting to be qualified, and pouring grouting material.

The hydraulic steel strand jack is lifted or pulled by sequentially extending or retracting a jack piston; the hydraulic steel strand jack is provided with a wedge-shaped clamping mechanism, the wedge-shaped clamping mechanism automatically locks the steel strand, the steel strand passes through the jack when the piston extends out, and then the steel strand is locked at a new position when the piston retracts and resets.

In the embodiment, 16 gantries and hydraulic cranes are arranged at the top of the heat absorption tower and are used as main machines for lifting the heat collector. Each set of hydraulic device puts down 12 steel strands from the tower, and 16 groups of steel strands are respectively connected with a steel beam lifting lug at the bottom of the heat collector by using an anchor and a pin shaft. And loosening bolts between the heat collector and the ring beam to lift the heat collector by 5 m. Disassembling the sliding device and the supporting ring beam; mounting a support beam sliding device; connecting the support beam to the sliding device; lifting the heat collector to an embedding height; pushing the support beam into the groove of the cylinder wall; the heat collector is in place; and (5) checking and accepting to be qualified, and pouring grouting material.

The steel strand jack device is as follows:

the steel strand jack device lifts or moves the structural weight by the increment of the hydraulic jack, and the increment of each time is equivalent to the stroke of the jack. The steel strand jack device is lifted or pulled through sequential extension or retraction of the jack piston.

The wedge clamping mechanism automatically locks the strand, the steel strand passes through the jack when the piston extends, and then the steel strand is locked at a new position when the piston retracts and resets. The lowering process is somewhat complicated and requires the incorporation of a secondary hydraulic system in the clamping mechanism to override their automatic operation. This allows the jack to be opened without lifting during the resetting process and allows the steel strand to pass through the lower handle when actually lowered. One special function common to all jacks is their fail-safe mechanism, which ensures that the load is automatically locked in the bottom anchor of the jack in the event of any hydraulic or electrical failure. This same feature also provides a facility for stopping the lifting operation and transferring the load from the hydraulic system to the mechanical means of the bottom anchor at any part of the jack stroke, thereby eliminating the need to hold the load on the hydraulic system for long periods of time. As an additional function, both the jack piston and the main anchor below the jack can be serviced with the jack system suspended, if desired. The distal ends of the lifting strands are secured using an anchor block having the same braking mechanism as used in the jack.

The hydraulic device of the steel strand jack comprises:

the hoist system will be operated by 4 electro-hydraulic systems mounted on top of the tower. The motor speed of the hydraulics can be modified by the control software to ensure that all units operate at the same speed. This enables the operating speeds of the jacks to be synchronised regardless of their relative loads. In addition to the primary hydraulic system, the hydraulic device is equipped with an auxiliary hydraulic system for operating the control jack gripping mechanism.

The hydraulic device can directly operate the set process, and can also perform actual steel strand tensioning operation through a remote controller. The monitoring system of the remote control computer can detect the operating power of the hydraulic device, the pressure of each jack and the system, and can also display the stroke data and graphic format of each jack, the state of the clamping mechanism and all information required for safe operation.

The hydraulic device receives information from the jack electronics and may display this information directly, in part, on the built-in control panel. While sending the information to the control computer. A signal cable connects the power pack to the control computer.

The central control system:

the hoisting is controlled by a remote control system directly connected with a cable. The system operates on a master/slave bus. The normal mode of operation of the entire system will be by remote control, i.e. the operator will only monitor the operation and all data from the jack will be displayed on the computer display screen. The automatic function can be overridden at any time (i.e., during device installation and commissioning) to make individual load adjustments, if desired.

The control system allows the load in any jack to be increased or decreased relative to the load in the remaining jacks.

The emergency stop button is installed on all major components in the system. These buttons are connected in series, so if any button is activated, the system will shut down and only the diagnostic and alternate functions can be manually restarted.

The control system uses computerized techniques to control and monitor the performance of the hoist system.

In order to make the displayed information easy to use on site, the maximum number of jacks displayed on each screen is limited to 20, but only 16 are displayed in this item. The load on the jack, the sum of the total loads of the 16 lifting systems, the sum of the total loads of each lifting system, the stroke of the jack, the sum of the total number of strokes to derive an approximate movement value, etc. are recorded in detail. To facilitate control of the normal operation of the hoist and monitoring functions, the control system may also be programmed to determine all the interaction between each jack and the oil pump according to the specific lifting device requirements.

In addition, there will be spare computers that are equipped with a complete operating system and that can be used as a spare host or spare computer in the event of an accident to the computer.

Steel strand wires braced system: the steel strand wires coming out of the jack in the lifting process are guided through a supporting box guide pipe arranged above the portal frame and then pass through a reserved opening on the working platform through a deflection pipe of a lifting frame in the landing leg of the gantry hanger frame, so that the steel strand wires are suspended along the outer side tower wall.

Fixing the anchor shell system: the connection between the collector and the crane system is accomplished by means of a stationary anchor housing. The connection with the heat collector will be accomplished through the bolt that matches with the existing 16 lugs.

The steel strand wires are mechanically braked by the aid of the clamping jaws installed in the jack, and when power failure occurs or a lifting device fails, the clamping jaws brake freely to prevent the heat collector from sliding downwards.

The hydraulic lifting system of the heat collector consists of 16 sets of hydraulic lifting devices and four control systems, each set of hydraulic device comprises 1 hydraulic lifting device and 12 steel strands, each set of control system consists of a computer and a monitoring system and is used for controlling and monitoring the performance of the lifting system, and each set of control system controls 4 hydraulic lifting devices;

the hydraulic lifting device is provided with a hydraulic jack and a steel strand in an open area on the ground, the steel strand is checked item by item according to a quality check list before being threaded, and the steel strand is threaded after the condition that no fault exists is confirmed. The steel strand penetrating method comprises the following steps: inserting the steel strand jack into the leading-out end of the steel strand roller, moving the steel strand roller by using a forklift until the length of the steel strand reaches 230m, then cutting off the steel strand, ensuring that the steel strand penetrating method of each jack is consistent, cleaning dust and oil stains on the surface of the steel strand before penetrating into a strand hole, checking the integrity of the steel strand, and making a check record. After 12 stranded wires are threaded, clamping jaws inside the jacks are used for fixing, one truck crane and two forklifts are used for transferring the assembled jacks and the steel stranded wires to the interior of a tower barrel, a tower top portal frame is installed and accepted, a building crane is used for lifting the assembled jacks and the steel stranded wires to a position in the tower, a connecting bolt is used for fixing a hydraulic device on a portal frame beam, and an operating system is fixed above a temporary operating platform.

The anti-collision device structure is a steel bottom plate with a buffer made of Nylatron 703 XL. The nylon piece is fixed on the bottom plate by bolts, and the whole anti-collision device is fixed on the outer end face of the bottom cross beam of the heat collector by the bolts.

The heat collector hoisting process is as follows:

(1) formal hoisting preload test of heat collector

The supporting ring beam and the heat collector are supported by a sliding track;

the hoisting device is enabled to bear 10% of the expected load, and the performance of each part of the hoisting device is checked;

lifting 1.2 times of the predicted load by using 8 alternative lifting devices for 20 minutes, and checking the integrity of each part of the 8 lifting devices under the load of 1.2 times;

releasing the load of 8 hoisting devices, and then repeating the operation by using the other 8 hoisting devices;

when the load is released to 10% again, loosening the bolts between the supporting ring beam and the heat collector;

the load is lifted stepwise using a lifting device, each step lifting 10% of the expected load. Checking deformation conditions of all parts of the lifting device and making relevant records when the load is lifted by 10%; until the heat collector is completely supported by the hoisting device;

the skid unloads the load to 0. Removing connecting bolts between the supporting ring beam and the bottom of the steel structure of the heat collector;

after the load test is completed, the hoisting system is finally inspected before hoisting. And (4) connecting the inspection stranding, the stranded hose, the PPU connection, the anchor shell, the heat collector lifting lug and the anchor of the steel strand. If the loose strand is found, the fixing should be firm before hoisting.

(2) Bottom support ring beam shifting out and fixed anchor block mounting before heat collector hoisting

When the heat collector is hoisted to the height of 5-8m, stopping hoisting, replacing the installation direction after the sliding shoe push-pull device is removed, and pushing the support ring beam out of the tower body;

installing a push-pull device; the push-pull device consists of a slide rail, a bracket and a hydraulic jack and is arranged below a supporting beam at the bottom of the heat collector; the sliding rail is welded on a supporting beam at the bottom of the heat collector in a heat collector combined field, the bracket is connected below the sliding rail by using a bolt, and the tray can slide under the action of the hydraulic jack;

and (3) mounting a fixed anchor block: the fixed anchor block consists of two cross beams, namely an upper fixed anchor block and a lower fixed anchor block; the middle of the upper fixing anchor block and the middle of the lower fixing anchor block are connected into a whole by a screw rod of M64, and the upper and lower spacing of the upper fixing anchor block and the lower fixing anchor block is 2450 mm. After the fixed anchor block is combined on the ground, the total weight is 2.7t, the fixed anchor block is transported to the position right below the installation position by using a 5t forklift and lifted, the fixed anchor block is lifted to the in-place position by using a 3t chain hoist, a constructor stands on a rod lifting vehicle in the tower, and the fixed anchor block is fixed on a push-pull device bracket by using a bolt M30;

erecting a scaffold operation platform at the bottom of the heat collector: when the heat collector reaches the in-position, a constructor needs to operate the fixed anchor block sliding, the fixed anchor block adjusting and the like at the lower part of the heat collector, so that a double-layer scaffold hanger platform with the diameter of 23m and the height of 3.5m is erected after a supporting beam at the bottom of the heat collector is installed, and the platform cannot influence the propulsion of the fixed anchor block. And the scaffold platform is dismantled after the 213m formal platform in the tower is in place.

(3) Heat collector hoisting

After the command sends out the instruction of starting lifting, the heat collector starts lifting operation at the average speed of 6 m/h. The collectors will be lifted on day 1 and day 2 until a height of 100 to 150 meters is reached. During this time, the crane inspector inspected the twister jaws and, if abnormal, replaced on day 3. The twister is disassembled by a professional. After lifting the head of the jack, a worker applies lubricating oil on the jaw. The jaw is changed by the professional, and the strange awl cannot be touched by others. After the jaw is replaced, the lifting activity will continue.

Reaching the final position of the top of the tower within two days in the future. The hoisting operation will be completed within 5 days, including the replacement of the cone.

In the whole hoisting process, the operation personnel can properly clean the tower top. And check if the hose is leaking. If any leaks are found, the hoisting conductor should be notified immediately. After inspection, the lifting operation is stopped by fixing the load on the winch and the leak is handled by a professional.

(4) Mounting of heat collector fixing anchor block

Operating the push-pull device to push the fixed anchor block into the groove of the tower body; after the fixed anchor block is pushed to enter the installation position, an adjusting gasket is added to the bottom of the installation position of the upper fixed anchor block, battens are padded to the bottom of the lower fixed anchor block, and the battens are locked through adjusting connecting bolts. After stress, a concave steel box is arranged below the lower fixed anchor block and used for installing a jack of the jacking supporting beam. And jacking the jack to ensure that the jacking is stopped when the top surface elevation of the upper supporting beam is 17mm lower than the top of the concrete of the heat collection tower.

Check that all systems are stressed and stable. And removing the pushing system beside the fixed anchor block, removing the screw cap and the gasket on the upper part of the fixed anchor block, slowly dropping the whole heat collector, and penetrating the M64 screw into the mounting position of the steel beam at the bottom of the heat collector until the steel beam at the bottom of the heat collector is consistent with the elevation of the tower top. At the moment, the gap between the upper surface of the fixed anchor block and the steel beam at the bottom of the heat collector is 17 mm.

The chain hoist is used for integrally lifting the fixed anchor block, the upper fixed anchor block and a heat collector bottom steel beam connecting bolt are penetrated simultaneously, the part of bolts are fastened, and the gap between the bottom sliding support and the concrete surface is 27 mm.

And adjusting the left and right buffer gaskets of the fixed anchor block to ensure that no gap exists between the buffer gaskets and the concrete. The gap can be adjusted by using an adjusting shim in the process.

The sliding support is subjected to secondary grouting, and the maintenance strength meets the requirement. Two ultrathin hydraulic oil jacks and a chain hoist are arranged at the bottom of the lower fixed anchor block, and the lower fixed anchor block is lifted to a mounting position. And simultaneously, fastening the M64 connecting screw. And (5) removing the oil top and the chain block.

After the heat collector is in place and the foundation has the bearing condition, the hoisting device starts to unload, the hydraulic device gradually unloads according to 20% of load each time, the deformation condition of the foundation and the fixed anchor block is checked after each unloading, after no obvious deformation is checked, the hoisting device continues to unload until the load of the hoisting device is 0, and the heat collector completely bears the weight on the foundation.

Dismantling a heat collector hoisting device: loosening steel strands of the hoisting device, removing pin shafts between the steel strands and the lifting lugs, binding the steel strands extending out of the jack by using a tower crane, removing 5 steel strands each time, cutting the steel strands, and slowly placing the steel strands at zero meter through a preformed hole of the tower top operating platform; and loosening the connecting bolt of the jack and the portal, and hoisting the hydraulic device and the rest small part of steel strands by using the tower crane to place the zero-meter ground outside the tower.

The above listed embodiments are only combined with the accompanying drawings to clearly and completely describe the technical scheme of the present invention; it should be understood that the embodiments described are only some embodiments, not all embodiments, and the terms "upper", "lower", "front", "back", "middle", etc. used in this specification are only for the sake of clarity, and are not intended to limit the scope of the invention, which can be implemented, and the relative relationship changes or adjustments may be made without substantial technical changes. Meanwhile, the structure, ratio, size and the like shown in the drawings of the specification are only used for matching with the content disclosed in the specification, so that people familiar with the technology can understand and read the structure, the ratio, the size and the like, but not for limiting the limit conditions which can be implemented by the utility model, so the structure does not have the substantial significance in the technology, and the modification of any structure, the change of the ratio relation or the adjustment of the size still fall within the range which can be covered by the technical content disclosed by the utility model under the condition of not influencing the efficacy which can be generated by the utility model and the purpose which can be achieved by the utility model. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Claims

1. The utility model provides a tower heat collector hoist and mount system device of megawatt level which characterized in that: the device comprises a heat absorption tower, a plurality of portal frames, a hydraulic crane, a heat collector bottom supporting beam and lifting lugs; the portal frame is arranged at the top of the heat absorption tower, the hydraulic crane is arranged on the portal frame and is provided with a hydraulic steel strand jack, and the hydraulic steel strand jack is connected with the lifting lug through a steel strand; the hoisting system of the tower type photo-thermal power generation heat collector is formed by combining a plurality of gantries provided with hydraulic cranes, and the whole tower type photo-thermal power generation heat collector is hoisted to the top of a heat absorption tower from the inner space of the heat absorption tower through the matching of a hydraulic steel strand jack of the hydraulic crane and a supporting beam and a lifting lug at the bottom of the heat collector; the plurality of door frames are annularly arranged around the top of the heat absorption tower, and the door frames are connected into a whole through I-shaped steel and a fastening piece at the top of the heat absorption tower, so that the door frames are prevented from swinging under the influence of wind power in the hoisting process; each portal is provided with a hydraulic crane, and the hydraulic steel strand penetrates through the hydraulic crane; the hydraulic steel strand jack is lifted or pulled by sequentially extending or retracting a jack piston; the hydraulic steel strand jack is provided with a wedge-shaped clamping mechanism, the wedge-shaped clamping mechanism automatically locks the steel strand, the steel strand passes through the jack when the piston extends out, and then the steel strand is locked at a new position when the piston retracts and resets; the lower end of the hydraulic steel strand is connected with a lifting lug, and the lifting lug is connected with the tower type photo-thermal power generation heat collector through a bottom supporting beam of the heat collector; on one hand, the bottom supporting beam of the heat collector is connected to the bottom of the tower type solar-thermal power generation heat collector through a fastener, and plays a supporting role in supporting the tower type solar-thermal power generation heat collector; on the other hand, a hoisting block protrudes upwards from the outer end part of the bottom supporting beam of the heat collector, and a bolt matched with the hoisting block is inserted into the hoisting lug through the hoisting block and is connected with the hoisting lug.

2. The hoisting system device for the megawatt tower collector as claimed in claim 1, wherein: a movable fixed anchor block is arranged on a supporting cross beam at the bottom of the heat collector; the fixed anchor block consists of two cross beams, namely an upper fixed anchor block and a lower fixed anchor block; the middle parts of the upper fixing anchor block and the lower fixing anchor block are connected into a whole by a screw, and the vertical distance between the upper fixing anchor block and the lower fixing anchor block is 2450 mm; the fixed anchor block is hung on a track below a supporting cross beam at the bottom of the heat collector through a bracket and is driven to move by a push-pull oil cylinder.

3. The hoisting system device for the megawatt tower collector as claimed in claim 1, wherein: the lifting block is connected with the bottom supporting beam of the heat collector into a whole and is protruded towards the upper part from the outer end part of the bottom supporting beam of the heat collector, and a bolt matched with the lifting lug is arranged on the lifting block; during hoisting, the lifting lugs fall into the hoisting blocks, are inserted into the lifting lugs through the bolts on the hoisting blocks and are connected with the lifting lugs; the steel strand coming out of the jack is guided through a supporting box guide pipe arranged above the portal frame and then passes through a reserved opening on the working platform through a deflection pipe of a lifting frame in the landing leg of the gantry hanger frame, so that the steel strand is suspended along the outer side tower wall.

4. The hoisting system device for the megawatt tower collector as claimed in claim 2, wherein: for avoiding the damage of heat collector equipment caused by collision during hoisting, the outer end part of the bottom supporting beam of the heat collector is provided with an anti-collision block, the anti-collision block is fixed at the outer end part of the bottom supporting beam of the heat collector by using bolts, and the anti-collision block prevents the heat collector from colliding the inner wall of the concrete tower body.

5. The hoisting system device for the megawatt tower collector as claimed in claim 2, wherein: the anti-collision block consists of a connecting steel plate and a rubber block and is fixed on the outer end part of the bottom supporting beam of the heat collector by bolts; the fixing anchor is connected below the supporting cross beam at the bottom of the heat collector, and after the tower type solar-thermal power generation heat collector is hoisted to the top, the fixing anchor moves into a groove in the wall of the cylinder at the top of the heat absorption tower through the moving device and is locked and fixed.