Integrated load-bearing type anti-seepage heat-preservation floating roof system of heat storage pool

Abstract

The utility model provides an integrated bearing type anti-seepage heat preservation floating roof system of a heat storage pool, which comprises a heat storage water body, a pool dam, drainage ditches, an air heat insulation layer and a floating roof, the drainage ditches are arranged on the two sides of the pool dam, and the floating roof comprises a high-temperature-resistant floating body, a slope making base plate, a purline, an anti-seepage heat preservation layer, an inspection manhole, a steam exhaust channel and a floating body connecting piece. The high-temperature-resistant floating bodies are connected into a densely-arranged square structure through floating body connecting pieces, slope making base plates are arranged on the upper sides of the high-temperature-resistant floating bodies at intervals in the longitudinal direction of the heat storage pool, the heights of the slope making base plates are sequentially reduced from the middle to the two sides according to the designed gradient, purlines are fixedly arranged on the upper sides of the slope making base plates at intervals in the transverse direction of the heat storage pool, and anti-seepage heat preservation layers are constructed on the upper sides of the purlines. The high-temperature-resistant floating body forms an air thermal insulation layer between the heat storage water body and the anti-seepage thermal insulation layer; the anti-seepage heat preservation layer is provided with an inspection manhole and a steam exhaust channel. The bearing capacity can be greatly improved, and heat loss is reduced.

Description

Technical Field

[0001] The utility model relates to an integrated load-bearing anti-seepage and heat-insulating floating roof technology for a hot water storage tank, in particular to an integrated load-bearing anti-seepage and heat-insulating floating roof system for a hot water storage tank. Background Art

[0002] Large-scale inter-seasonal heat storage systems mostly use excavated pools to store water and heat. Water body heat storage is an explicit heat storage, which has the advantages of high heat storage temperature, high heat storage efficiency, little influence by hydrogeological conditions, and flexible installation. The key technical factors of its heat storage performance are the geometric shape, size, and material of the heat storage body. For pool-type hot water storage bodies, the heat loss of the insulation top cover accounts for more than 50% of the total heat loss.

[0003] The large-scale cross-seasonal water storage body top insulation system can be divided into fixed type and floating type in terms of structural form. The fixed top insulation system requires the installation of structural components such as pillars, beams, and covers to provide support for the insulation system, so the cost is relatively high, but because the supporting structure is stable, the choice and form of insulation materials are not restricted, and the insulation effect is better; the floating type refers to an insulation system that relies on the buoyancy of the water body to support the top insulation material. Since no supporting structure is set, the cost is relatively low.

[0004] The floating roof of the water storage body can be divided into an integrated roof and a modular roof. The integrated roof has good thermal insulation effect, but it is difficult to construct and maintain in the later stage; the modular roof is easy to construct and maintain, but due to the existence of seams, the thermal insulation effect is not as good as the integrated roof. Utility Model Content

[0005] In order to solve the problems of difficult construction, inconvenient drainage and inability to bear weight of integrated floating roofs of large-scale cross-seasonal hot water storage bodies, the utility model provides an integrated load-bearing anti-seepage and thermal insulation floating roof system suitable for hot water storage bodies, which has strong load-bearing capacity and good thermal insulation effect.

[0006] To achieve the above-mentioned purpose of the utility model, the utility model provides an integrated load-bearing anti-seepage and thermal insulation floating roof system for a hot water storage tank, comprising a hot water storage body, a tank dam, a drainage ditch, an air insulation layer, and a floating roof. Drainage ditches are arranged on both sides of the tank dam. The floating roof comprises a high-temperature resistant floating body, a slope pad, a purlin, an anti-seepage and thermal insulation layer, a maintenance manhole, an exhaust passage, and a floating body connector. The high-temperature resistant floating body is connected to form a closely packed U-shaped structure through the floating body connector. Slope pads are arranged at intervals along the longitudinal direction of the hot water storage tank on the upper side of the high-temperature resistant floating body. The height of the slope pads decreases from the middle to both sides according to the designed slope. Purlins are fixedly arranged at intervals along the transverse direction of the hot water storage tank on the upper side of the slope pad. An anti-seepage and thermal insulation layer is constructed on the upper side of the purlin. An air insulation layer is formed between the hot water storage body and the anti-seepage and thermal insulation layer on the high-temperature resistant floating body. An inspection manhole and an exhaust passage are arranged on the anti-seepage and thermal insulation layer.

[0007] Furthermore, the spacing between the purlins is 400mm-600mm.

[0008] Furthermore, the anti-seepage and heat-insulating layer comprises a high-temperature resistant flexible anti-seepage membrane, an aluminum foil, a heat-insulating material, and an upper anti-seepage protective membrane which are arranged in sequence from bottom to top.

[0009] Compared with the traditional integrated floating roof and modular floating roof, the utility model has the following positive effects:

[0010] (1) The use of floating bodies to support the entire anti-seepage insulation system can greatly improve the bearing capacity and make the choice of insulation materials more diverse.

[0011] (2) The air layer on top of the water surface formed by the float can provide an additional insulation layer, which helps to improve the insulation effect.

[0012] (3) The floating body provides a bearing surface, and a slope can be formed by setting pads and purlins, thus avoiding the problem of water accumulation on the floating roof.

[0013] (4) The anti-seepage layer and thermal insulation layer are laid in an integrated manner to avoid vertical seams and reduce heat loss.

[0014] (5) The installation of a reflective aluminum foil layer further enhances the thermal insulation capacity of the thermal insulation system. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural diagram of an integrated load-bearing anti-seepage and thermal insulation floating roof system for a hot water storage tank;

[0016] Figure 2 It is the detailed drawing of anti-seepage and thermal insulation system;

[0017] Figure 3 This is a typical load-bearing floating body layout diagram;

[0018] Among them: 1. Hot water storage body; 2. Pool dam; 3. Drainage ditch; 4. Air insulation layer; 5. High temperature resistant floating body; 6. Slope pad; 7. Purlin; 8. Anti-seepage insulation layer; 9. Inspection manhole; 10. Exhaust hole; 11. High temperature resistant flexible anti-seepage membrane; 12. Aluminum foil; 13. Insulation material; 14. Anti-seepage protective membrane; 15. Floating body connector. DETAILED DESCRIPTION

[0019] In order to better understand the purpose, structure and function of the utility model, the following is a further detailed description of the integrated load-bearing anti-seepage and thermal insulation floating roof system of a hot water storage tank of the utility model in conjunction with the accompanying drawings.

[0020] Example:

[0021] like Figure 1As shown, an integrated load-bearing anti-seepage and heat-insulating floating roof system mainly includes: a hot water storage body 1, a water tank dam 2, a drainage channel 3, an air heat-insulating layer 4, and a floating roof. The floating roof includes a high-temperature resistant floating body 5, a slope pad 6, a purlin 7, an anti-seepage and heat-insulating layer 8, a maintenance manhole 9, and an exhaust channel 10. The high-temperature resistant floating body 5 is connected to a closely packed U-shaped structure through a floating body connector 15. Slope pads 6 are arranged at intervals along the longitudinal direction of the hot water storage tank on the upper side of the high-temperature resistant floating body 5. The height of the slope pad 6 decreases from the middle to both sides in sequence according to the designed slope. Purlins 7 are fixedly arranged at intervals along the transverse direction of the hot water storage tank on the upper side of the slope pad 6, and an anti-seepage and heat-insulating layer 8 is arranged on the upper side of the purlin 7. The maintenance manhole 9 and the exhaust channel 10 are arranged on the anti-seepage and heat-insulating layer 8.

[0022] like Figure 2 As shown, the anti-seepage and heat-insulating layer 8 includes a high-temperature resistant flexible anti-seepage membrane 11, an aluminum foil 12, a heat-insulating material 13, and an upper anti-seepage protective membrane 14 which are arranged in sequence from bottom to top.

[0023] An embodiment of the utility model can be completed according to the following steps:

[0024] According to the analysis and calculation of the large-scale heat storage system and the scope of land use, the construction is carried out according to the design drawings to excavate the pool, build the pool dam 2 and construct the drainage ditch 3 to store the hot water body 1. When determining the height of the pool dam 2, the construction cost should be comprehensively considered and the earthwork balance should be achieved as much as possible. The slope of the pool dam 2 should be determined according to the materials used, and it should generally be between 1:1 and 1:2 to meet the landslide stability requirements. The width of the top of the pool dam 2 should meet the traffic requirements. The drainage ditch 3 should be made of mortar masonry and should have a longitudinal slope of 0.5%.

[0025] like Figure 3 As shown, the high temperature resistant float 5 is connected by a float connector 15 to form a load-bearing float system and generate an air insulation layer 4. The high temperature resistant float 5 can be made of HDPE material, which has many advantages such as large buoyancy, resistance to environmental cracking, resistance to high and low temperatures, environmental protection, and anti-aging. The high temperature resistant float 5 can form an air insulation layer 4 between the hot water storage body 1 and the anti-seepage insulation layer 8, thereby improving the insulation performance of the entire system.

[0026] like Figure 3 As shown, the slope pad 6 and purlin 7 are fixed on the high temperature resistant floating body 5 according to the designed slope (generally 1% to 2%) to form a support system for the anti-seepage insulation layer 8. The slope pad 6 and purlin 7 should be made of high temperature resistant and water vapor resistant materials and should be firmly installed. The spacing of the purlin 7 is preferably 400mm-600mm, and it should be ensured that the anti-seepage insulation layer 8 can be stably supported.

[0027] like Figure 2As shown, high temperature resistant flexible anti-seepage membrane 11, aluminum foil 12, insulation material 13, and upper anti-seepage protective membrane 14 are laid in sequence, and all materials should be firmly fixed on the top of the pool dam 2. When constructing the anti-seepage insulation system, the exhaust channel 10 and the inspection manhole 9 should be installed according to the designed position. The high temperature flexible anti-seepage membrane 11 and the upper anti-seepage protective membrane 14 should ensure quality during construction to avoid leakage. An automatic exhaust valve is set inside the exhaust channel 10 to discharge excess water vapor in the pool.

[0028] Through the above steps, the construction of this embodiment is successfully completed.

[0029] The above examples illustrate the basic principle, main features and implementation process of the utility model. The examples are only examples of the utility model, not all examples, and cannot be used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes. Under the inspiration of the technical personnel in this field, without departing from the purpose of the invention of the utility model, the structural methods and embodiments similar to the technical solution without creative design should all belong to the protection scope of the utility model.

Claims

1. An integrated load-bearing anti-seepage and heat-insulating floating roof system for a hot water storage tank, characterized in that: The invention comprises a hot water storage body (1), a water pool dam (2), a drainage ditch (3), an air insulation layer (4), and a floating roof. The drainage ditch (3) is arranged on both sides of the water pool dam (2). The floating roof comprises a high temperature resistant floating body (5), a slope pad (6), a purlin (7), an anti-seepage insulation layer (8), a maintenance manhole (9), an exhaust passage (10), and a floating body connector (15). The high temperature resistant floating body (5) is connected to form a closely packed square-shaped structure through the floating body connector (15). Slope pads (6) are arranged at longitudinal intervals along the side of the hot water storage tank. The height of the slope pads (6) decreases from the middle to the sides in sequence according to the designed slope. Purlins (7) are fixedly arranged at transverse intervals along the hot water storage tank on the upper side of the slope pads (6). An anti-seepage thermal insulation layer (8) is constructed on the upper side of the purlins (7). The high-temperature resistant floating body (5) forms an air thermal insulation layer (4) between the hot water storage body (1) and the anti-seepage thermal insulation layer (8). The anti-seepage thermal insulation layer (8) is provided with an inspection manhole (9) and a steam exhaust channel (10).

2. The integrated load-bearing anti-seepage and heat-insulating floating roof system of a hot water storage tank according to claim 1, characterized in that: The spacing between the purlins (7) is 400mm-600mm.

3. The integrated load-bearing anti-seepage and heat-insulating floating roof system of a hot water storage tank according to claim 1, characterized in that: The anti-seepage and heat-insulating layer (8) comprises a high-temperature-resistant flexible anti-seepage membrane (11), an aluminum foil (12), a heat-insulating material (13), and an upper anti-seepage protective membrane (14) which are arranged in sequence from bottom to top.

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