In-tower cable laying structure of NDC system

Abstract

The utility model discloses an in-tower cable laying structure of an NDC system, which comprises an indirect cooling tower main body, the indirect cooling tower main body comprises a plurality of cooling units, and each cooling unit comprises a cooling triangular buttress, a first cable bridge, a second cable bridge, a steam loop buttress and a third cable bridge. The first cable bridge and the second cable bridge are installed on the cooling triangular buttress, and the third cable bridge is installed on the steam ring pipe buttress. Through the application of the utility model, an in-tower cable laying mode of an NDC system is provided, the whole cable is in a circular ring shape, the path is regular, and the design efficiency of a cable channel is improved. The cable bridge is close to all electric control equipment as much as possible, the laying difficulty is reduced, the design cost and the occupied area of the whole steel structure are reduced, and the whole design outside the tower is attractive. The whole design greatly reduces the design of the cable trench in the tower, can reduce the construction amount of the cable trench, and reduces the civil construction cost.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling system arrangement, in particular to a cable laying structure in a tower of an NDC system. Background Art

[0002] Air cooling system, full name air condenser system. The northern region of my country is rich in coal resources, but water resources are relatively scarce, which increases the difficulty of converting the abundant coal resources into electricity on site. The air-cooled unit is a cooling method that uses air instead of water as the cooling medium. In the NDC direct air cooling system, the exhaust steam of the steam turbine is sent to the outdoor air condenser through a thick exhaust pipe. The cooling tower is used to guide the air to flow through the outer surface of the radiator, condensing the steam in the tube bundle into water, and then pumped back to the steam turbine system. The system back pressure control target is achieved through the opening of the shutters on the outside of the tube bundle, while saving water and electricity. However, the laying of cables in the existing NDC system is inconvenient. Utility Model Content

[0003] In view of this, in order to solve the above problems, the purpose of the utility model is to provide a cable laying structure in the tower of an NDC system, comprising:

[0004] An intercooling tower body, wherein the intercooling tower body comprises a plurality of cooling units, wherein the plurality of cooling units are connected in sequence and arranged in a ring shape, wherein each of the cooling units comprises: a cooling triangle pier, a plurality of first cable trays, a plurality of second cable trays, a steam ring pipe pier and a plurality of third cable trays, wherein the plurality of the first cable trays and the plurality of the second cable trays are installed on the inner side of the cooling triangle pier, the plurality of the third cable trays are installed on the steam ring pipe pier, the steam ring pipe pier has a ring pipe body, and the plurality of the third cable trays surround the outer wall of the ring pipe body.

[0005] In another preferred embodiment, it further comprises: a cable trench, wherein the intercooling tower body is provided with an entrance and exit, the cable trench is opened below the entrance and exit, and the plurality of the first cable trays and the plurality of the second cable trays are all connected to the cable trench.

[0006] In another preferred embodiment, a plurality of the first cable trays are arranged above a plurality of the second cable trays.

[0007] In another preferred embodiment, the elevation of some of the first cable trays is +0.4m.

[0008] In another preferred embodiment, the elevation of some of the second cable trays is +0.1 m.

[0009] Due to the adoption of the above technical solution, the utility model has the following positive effects compared with the prior art: through the application of the utility model, a method for laying cables in the tower of an NDC system is provided, which is in a circular ring shape as a whole and has a regular path, thereby improving the design efficiency of the cable channel. The cable tray is as close as possible to all the electric control equipment, which reduces the difficulty of laying, reduces the design cost and floor space of the overall steel structure, and the overall design of the tower is beautiful. The entire design greatly reduces the design of the cable trench in the tower, which can reduce the construction volume of the cable trench and reduce the cost of civil construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is an overall schematic diagram of a cable laying structure in a tower of an NDC system of the utility model;

[0011] Figure 2 It is a first partial schematic diagram of a cable laying structure in a tower of an NDC system of the utility model;

[0012] Figure 3 This is a second partial schematic diagram of a cable laying structure in a tower of an NDC system of the utility model.

[0013] In the attached figure: 1. Intercooler tower body; 2. Cooling triangle pier; 3. Steam ring pipe pier; 4. Ring pipe body; 5. First cable tray; 6. Second cable tray; 7. Third cable tray; 8. Entrance and exit; 9. Cable trench. DETAILED DESCRIPTION

[0014] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0015] like Figures 1 to 3 FIG. 1 shows a cable laying structure in a tower of an NDC system of a preferred embodiment, comprising:

[0016] The intercooling tower body 1 includes a plurality of cooling units, which are connected in sequence and arranged in a ring shape, wherein each cooling unit includes: a cooling triangle pier 2, a plurality of first cable trays 5, a plurality of second cable trays 6, a steam ring pipe pier 3 and a plurality of third cable trays 7, the plurality of first cable trays 5 and the plurality of second cable trays 6 are all installed on the inner side of the cooling triangle pier 2, the plurality of third cable trays 7 are all installed on the steam ring pipe pier 3, the steam ring pipe pier 3 has a ring pipe body 4, and the plurality of third cable trays 7 surround the outer wall of the ring pipe body 4.

[0017] During actual use, a number of first cable trays 5 and a number of second cable trays 6 are erected along the inner side of the cooling triangle pier 2, a number of first cable trays 5 are arranged above a number of second cable trays 6, the elevation of a number of first cable trays 5 is +0.4m, the elevation of a number of second cable trays 6 is +0.1m, and a number of third cable trays 7 are erected along the ring pipe body 4 of the steam ring pipe pier 3, and the elevation changes with the ring pipe body 4.

[0018] Furthermore, as a preferred embodiment, it also includes: a cable trench 9, the intercooling tower body 1 is provided with an entrance and exit 8, the cable trench 9 is opened below the entrance and exit 8, and the plurality of first cable trays 5 and the plurality of second cable trays 6 are all connected to the cable trench. Furthermore, in actual use, when the plurality of first cable trays 5 and the plurality of second cable trays 6 pass through the entrance and exit 8, the cable trench 9 is dug to avoid the need to set up an additional steel structure, thereby saving costs.

[0019] Further, as a preferred embodiment, the plurality of first cable trays 5 are arranged above the plurality of second cable trays 6 .

[0020] Further, as a preferred embodiment, the elevation of the first cable trays 5 is +0.4 m.

[0021] Further, as a preferred embodiment, the elevation of the plurality of second cable trays 6 is +0.1 m.

[0022] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A cable laying structure in a tower of an NDC system, characterized in that: include: An intercooling tower body, wherein the intercooling tower body comprises a plurality of cooling units, wherein the plurality of cooling units are connected in sequence and arranged in a ring shape, wherein each of the cooling units comprises: a cooling triangle pier, a plurality of first cable trays, a plurality of second cable trays, a steam ring pipe pier and a plurality of third cable trays, wherein the plurality of the first cable trays and the plurality of the second cable trays are installed on the inner side of the cooling triangle pier, the plurality of the third cable trays are installed on the steam ring pipe pier, the steam ring pipe pier has a ring pipe body, and the plurality of the third cable trays surround the outer wall of the ring pipe body.

2. The cable laying structure in the tower of the NDC system according to claim 1, characterized in that: Also includes: The intercooling tower body is provided with an entrance and exit, the cable trench is opened below the entrance and exit, and the plurality of the first cable trays and the plurality of the second cable trays are all connected to the cable trench.

3. The cable laying structure in the tower of the NDC system according to claim 1, characterized in that: The plurality of first cable trays are all arranged above the plurality of second cable trays.

4. The cable laying structure in the tower of the NDC system according to claim 1, characterized in that: The elevation of some of the first cable trays is +0.4m.

5. The cable laying structure in the tower of the NDC system according to claim 1, characterized in that: The elevation of some of the second cable trays is +0.1m.

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