CN214840753U

CN214840753U - Two or many thermal power generating unit condensate water contact systems

Info

Publication number: CN214840753U
Application number: CN202121170076.0U
Authority: CN
Inventors: 杜武荣; 詹新民; 徐广涛; 黄志涛; 范永春; 王冠醇
Original assignee: Huaneng Luoyuan Power Generation Co Ltd
Current assignee: Huaneng Luoyuan Power Generation Co Ltd
Priority date: 2021-05-28
Filing date: 2021-05-28
Publication date: 2021-11-23
Anticipated expiration: 2031-05-28

Abstract

The utility model discloses a condensed water communication system for two or more thermal power generating units, wherein the connecting ends of the communication system are respectively connected with two or more condensed water systems, and the communication system comprises a first water pipe network respectively communicated with the condensed water systems and a first water pipe line connected with the first water pipe network in series; the first water service pipe network comprises branch water service pipes which are connected in parallel; the first water passage pipeline is provided with a communication electric door, and the branch water passage pipelines are provided with water passage valves.

Description

Two or many thermal power generating unit condensate water contact systems

Technical Field

The utility model particularly relates to a two or many thermal power generating unit condensate water contact systems belongs to thermal power generating unit heat supply technical field.

Background

The condensate system is a pipeline and equipment which are arranged between a condenser and a deaerator and are related to condensate water, is an important thermodynamic system of a heat supply power plant of a gas turbine, and directly influences the economical efficiency of the whole operation of a unit if the system configuration is reasonable.

In the prior art, each unit condensed water system of the thermal power plant is independently arranged under the conventional condition, and adjacent units are not communicated with each other. Under the condition that one unit normally operates, auxiliary steam used in the starting stage of the other unit is often supplied by the unit which is operating, the auxiliary steam does work and finally flows into a condenser to be condensed into water, so that the liquid level of the condenser for starting the unit continuously rises, in order to maintain the normal liquid level of the condenser, the problem can be solved only by a discharge mode, and a large amount of water is wasted by the method; in addition, the unit that does not have the contact each other is in operation, if condenser moisturizing pipeline takes place to leak and need keep apart and salvage, then the condenser can't maintain the normal water level of longer time, and the repair time is urgent.

Disclosure of Invention

In order to solve the problems in the prior art, the utility model provides a condensed water communication system for two or more thermal power generating units, which can recover excessive condensed water to return to the running unit in the starting stage of the unit; when the water supplement of the condenser fails during the operation of the unit, the normal operation unit supplies water to the failed unit through the condensed water communication system, so that the normal operation of the unit is ensured.

The technical scheme of the utility model as follows:

the connecting ends of the connecting system are respectively connected with two or more condensed water systems, and the connecting system comprises a first water pipe network and a first water pipe line, wherein the first water pipe network is respectively communicated with the condensed water systems, and the first water pipe line is connected with the first water pipe network in series; the first water service pipe network comprises branch water service pipes which are connected in parallel; the first water passage pipeline is provided with a communication electric door, and the branch water passage pipelines are provided with water passage valves.

Furthermore, a temperature reduction water system is also connected in series between the first water passing pipe network and the condensate system; the desuperheating water system comprises a desuperheating water input pipeline and a desuperheating water bypass connected in parallel with the desuperheating water input pipeline; a temperature-reducing water regulating valve is arranged on the temperature-reducing water input pipeline; a temperature-reducing water bypass electric door is arranged on the temperature-reducing water bypass; one end of the desuperheating water input pipeline is externally connected with a condensate water main pipe of a condensate water system.

Furthermore, the desuperheating water bypass is connected with the branch water pipeline in series.

Furthermore, a hydrophobic flash tank for separating steam and hydrophobic water is also connected in series between the desuperheating water input system and the condensed water system.

Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model connects the independently arranged condensed water system by arranging the condensed water connection system, and can recover the excessive condensed water in the starting stage of the unit and return the excessive condensed water to the running unit through the connection system; when the water supplement of the condenser fails during the operation of the unit and needs to be isolated and maintained, the normal operation unit can supply water to the failed unit through the communication system, so that the normal operation of the unit is ensured, and the time is saved for the fault maintenance; the utility model discloses a condensate water contact system can ensure safer, more economic operation of thermal power generating unit condensate system.

Drawings

FIG. 1 is a schematic view of a condensate interconnection system of the present invention;

in the drawings, the reference numbers denote:

1. a contact system; 11. a first water communication pipe network; 12. a first water passage pipe; 13. a branch water pipeline; 14. a communication power door; 15. a water valve; 2. a condensate system; 3. a desuperheating water system; 31. a desuperheating water input pipeline; 32. a desuperheating water bypass; 33. a desuperheating water regulating valve; 34. the desuperheating water bypasses the electric door; 4. a hydrophobic flash tank.

Detailed Description

In order to make the content of the present invention more comprehensible, the technical solution of the present invention is further described below with reference to the following detailed description and the accompanying drawings, but the present invention is not limited thereto.

Referring to fig. 1, in a condensed water interconnection system for two or more thermal power generating units, connection ends of the interconnection system 1 are respectively connected with two or more condensed water systems 2, in this embodiment, the interconnection system 1 is connected in series with the condensed water systems 2 of the two thermal power generating units, which are respectively a #1 condenser and a #2 condenser; the communication system 1 comprises a first water passing pipe network 11 respectively communicated with the condensed water system 2 and a first water passing pipeline 12 connected with the first water passing pipe network 11 in series; the first water passing pipe network 11 comprises branch water passing pipes 13 which are connected in parallel; the first water pipeline 12 is provided with a communication electric valve 14, the branch water pipelines 13 are all provided with water passing valves 14, the two branch water pipelines 13 connected with the #1 condenser in series are provided with a No. 1 water passing valve and a No. 2 water passing valve, and the two branch water pipelines 13 connected with the #1 condenser in series are provided with a No. 3 water passing valve and a No. 4 water passing valve.

Further, a temperature reduction water system 3 is also connected in series between the first water passing pipe network 11 and the condensate system 2 and is used for reducing the steam temperature in the condensate system 1; the desuperheating water system 3 comprises a desuperheating water input pipeline 31 and a desuperheating water bypass 32 connected in parallel with the desuperheating water input pipeline 31; a temperature-reducing water regulating valve 33 is arranged on the temperature-reducing water input pipeline 31; the temperature-reducing water bypass 32 is provided with a temperature-reducing water bypass electric door 34; one end of the desuperheating water input pipeline 31 is externally connected with a condensate water main pipe of the condensate water system 1.

Further, the desuperheating water bypass 32 is connected in series with the branch water passage 13, and the condensed water flowing through the branch water passage 13 enters the desuperheating water system 3 through the desuperheating water bypass 32, and enters the condensed water system 2 after being cooled by the desuperheating water from the condensed water main pipe.

Furthermore, a hydrophobic flash tank 4 for separating steam and hydrophobic water is also connected in series between the desuperheating water input system 3 and the condensed water system 2.

The utility model discloses a theory of operation:

referring to the attached drawing 1, the utility model provides an it establishes ties two thermal power unit condensate systems to utilize the utility model provides an it is established ties that contact system, if #1 machine condenser is running, #2 machine condenser is starting, the steam of assisting vapour and neighbour's machine heating system etc. that #2 machine condenser used comes from #1 machine condenser, when #2 machine condenser liquid level is high, open 1 number water service valve, 4 number water service valve and the contact electrically operated gate 14 that sets up on first water service pipeline 11 that set up on branch water service pipeline 13, can carry the excessive condensate water of #2 machine condenser to #1 machine condenser; the recycling of condensed water in the starting process of the unit is realized, and the waste of working media is reduced;

if the #2 condenser is operated, the #1 condenser is started, steam used by the #1 condenser, an adjacent heating system and the like comes from the #2 condenser, and when the liquid level of the #1 condenser is high, a No. 3 water through valve and a No. 2 water through valve which are arranged on the branch water through pipeline and a communication electric door 14 which is arranged on the first water through pipeline 11 are opened, so that excessive condensed water of the #1 unit condenser can be conveyed to the #2 unit condenser.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all utilize the equivalent structure or equivalent flow transformation that the content of the specification does, or directly or indirectly use in other related technical fields, all including in the same way the patent protection scope of the present invention.

Claims

1. The utility model provides a two or many thermal power generating unit condensate water contact systems which characterized in that: the connecting ends of the communication system (1) are respectively connected with two or more condensed water systems (2), and the communication system (1) comprises a first water passing pipe network (11) respectively communicated with the condensed water systems (2) and a first water passing pipeline (12) connected with the first water passing pipe network (11) in series; the first water passing pipe network (11) comprises branch water passing pipelines (13) which are connected in parallel; the first water passage pipeline (12) is provided with a communication electric door (14), and the branch water passage pipelines (13) are provided with water passage valves (15).

2. The condensate interconnection system for two or more thermal power generating units according to claim 1, wherein: a temperature-reducing water system (3) is also connected in series between the first water passing pipe network (11) and the condensed water system (2); the temperature-reducing water system (3) comprises a temperature-reducing water input pipeline (31) and a temperature-reducing water bypass (32) connected in parallel to the temperature-reducing water input pipeline (31); a temperature-reducing water regulating valve (33) is arranged on the temperature-reducing water input pipeline (31); a temperature-reducing water bypass electric door (34) is arranged on the temperature-reducing water bypass (32); one end of the desuperheating water input pipeline (31) is externally connected with a condensation water main pipe of the condensation water system (2).

3. The condensed water communication system for two or more thermal power generating units according to claim 2, wherein the desuperheating water bypass (32) is connected in series with the branch water passage pipe (13).

4. The two or more thermal power generating unit condensed water communication systems of claim 3, wherein a hydrophobic flash tank (4) for separating steam and hydrophobic water is further connected in series between the temperature reduction water system (3) and the condensed water system (2).