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CN-224215314-U - Device for effectively preventing vibration of deaerator in heating season of thermal power plant

CN224215314UCN 224215314 UCN224215314 UCN 224215314UCN-224215314-U

Abstract

The utility model discloses a device for effectively preventing a deaerator from vibrating in a heating season of a thermal power plant, and belongs to the technical field of thermal power plant equipment. The device comprises a heat supply network drain tank, a deaerator and a low-pressure heater, wherein a first pipeline is communicated with the bottom surface of the heat supply network drain tank, a pair of second pipelines are communicated with the side surfaces of the first pipeline, pumping pieces are communicated with the free ends of the pair of second pipelines, a third pipeline is connected between the free ends of the pumping pieces, the third pipeline is a four-fork pipe, two free ends of the third pipeline are communicated with a control piece, the free end of one control piece is communicated with a fourth pipeline, the tail end of the fourth pipeline is communicated with the deaerator, the free end of the other control piece is communicated with a fifth pipeline, the outer side of the fifth pipeline is communicated with a condensed water conveying pipeline, the fifth pipeline is also communicated with an inlet of the low-pressure heater, the free end of the fifth pipeline is communicated with a first valve body, the other end of the first valve body is communicated with a sixth pipeline, and the sixth pipeline is also communicated with an outlet of the low-pressure heater.

Inventors

  • CAO AIBING
  • JIAO CHEN
  • CHAI ZHIFANG
  • SONG ZHANHAI
  • ZHANG WEI

Assignees

  • 华电渠东发电有限公司

Dates

Publication Date
20260508
Application Date
20250429

Claims (7)

  1. 1. The utility model provides a device for effectively preventing heat supply quaternary oxygen-eliminating device of steam power plant from taking place vibration, its characterized in that includes heat supply network drain tank (1), oxygen-eliminating device (7), low pressure heater (13), the bottom surface intercommunication of heat supply network drain tank (1) has first pipeline (2), the side intercommunication of first pipeline (2) has a pair of second pipeline (3), a pair of free end of second pipeline (3) all communicates there is the pumping member, be connected with third pipeline (14) between the free end of pumping member, third pipeline (14) are four fork tubes, two free ends of third pipeline (14) all communicate there is the control piece, one of them free end intercommunication of control piece has fourth pipeline (6), the end and oxygen-eliminating device (7) intercommunication of fourth pipeline (6), the free end intercommunication of another control piece has fifth pipeline (8), the outside intercommunication of fifth pipeline (8) has pipeline (18), fifth pipeline (8) still with low pressure heater (13) have the comdenstion water to be connected with, the third pipeline (10) have the valve body (10) of the free end intercommunication, the valve body (10) has the valve body (9), the free end of the sixth pipeline (9) is communicated with the deaerator (7).
  2. 2. The device for effectively preventing vibration of a heating quaternary oxygen remover of a thermal power plant according to claim 1, wherein the pumping member comprises a pair of second valve bodies (5), a pump (4) is communicated between the pair of second valve bodies (5), one of the second valve bodies (5) is communicated with a second pipeline (3), and the other of the second valve bodies (5) is communicated with a third pipeline (14).
  3. 3. The device for effectively preventing vibration of the heating quaternary oxygen remover of the thermal power plant according to claim 1 is characterized in that the control piece comprises a pair of third valve bodies (15), a control valve (16) and a one-way valve (17) are communicated between the pair of third valve bodies (15), one of the third valve bodies (15) is connected with the third pipeline (14), and the other third valve body (15) is respectively communicated with the fourth pipeline (6) and the fifth pipeline (8).
  4. 4. The device for effectively preventing vibration of the heating quaternary oxygen remover of the thermal power plant according to claim 1 is characterized in that an inlet and an outlet of the low-pressure heater (13) are both communicated with a fourth valve body (12), a seventh pipeline (11) is connected between the other end of the fourth valve body (12) and the fifth pipeline (8) and the sixth pipeline (9) respectively, and the first valve body (10) is located between a pair of the seventh pipelines (11).
  5. 5. The device for effectively preventing vibration of the deaerator in the heating season of the thermal power plant according to claim 1, wherein a spray head is arranged in the deaerator (7), and the sixth pipeline (9) is connected with the spray head.
  6. 6. Device for effectively preventing vibration of a heating season deaerator of a thermal power plant according to claim 1, characterized in that the free end of the condensate water transport pipe (18) is connected to a condenser.
  7. 7. Device for effectively preventing vibration of a deaerator in a heating season of a thermal power plant according to claim 1, characterized in that the deaerator (7) has a water outlet.

Description

Device for effectively preventing vibration of deaerator in heating season of thermal power plant Technical Field The utility model relates to the technical field of thermal power plant equipment, in particular to a device for effectively preventing a deaerator in a heating season of a thermal power plant from vibrating. Background During winter heating in a thermal power plant, reasonable treatment of heat supply network drainage is important. In the traditional mode, if the hydrophobic temperature of the heat supply network is lower, the direct entering deaerator easily causes the deaerator to vibrate greatly, the stable operation and the service life of the deaerator are influenced, the deaeration efficiency is possibly reduced, and the safety and the economy of the whole heating system are negatively influenced. The existing solution is either too high in cost or complex in transformation, and the effect is not ideal, so that the requirements of high-efficiency and stable operation of the thermal power plant cannot be met. Therefore, an innovative solution is needed to solve these problems. Disclosure of utility model The utility model aims to provide a device for effectively preventing a deaerator in a heating season of a thermal power plant from vibrating, so as to solve the problems in the background art. In view of the above problems, the technical scheme provided by the utility model is as follows: The utility model provides an effectively prevent device that heating season deaerator of steam power plant from taking place vibration, includes heat supply network drain tank, deaerator, low pressure heater, the bottom surface intercommunication of heat supply network drain tank has first pipeline, the side intercommunication of first pipeline has a pair of second pipeline, a pair of the free end of second pipeline all communicates there is the pumping member, be connected with the third pipeline between the free end of pumping member, the third pipeline is the four fork pipe, two free ends of third pipeline all communicate there is the control piece, one of them the free end intercommunication of control piece has the fourth pipeline, the end and the deaerator intercommunication of fourth pipeline, another the free end intercommunication of control piece has the fifth pipeline, the outside intercommunication of fifth pipeline has the comdenstion water pipeline, the fifth pipeline still with the entry intercommunication of low pressure heater, the free end intercommunication of fifth pipeline has first valve body, the other end intercommunication of first valve body has the sixth pipeline, just the sixth pipeline still with the export intercommunication of low pressure heater, the free end with the deaerator intercommunication. Further, the pumping member comprises a pair of second valve bodies, a pump is communicated between the pair of second valve bodies, one of the second valve bodies is communicated with the second pipeline, and the other of the second valve bodies is communicated with the third pipeline. Further, the control member comprises a pair of third valve bodies, a control valve and a one-way valve are communicated between the pair of third valve bodies, one of the third valve bodies is connected with the third pipeline, and the other third valve body is respectively communicated with the fourth pipeline and the fifth pipeline. Further, the inlet and the outlet of the low-pressure heater are both communicated with a fourth valve body, a seventh pipeline is connected between the other end of the fourth valve body and the fifth pipeline and the sixth pipeline respectively, and the first valve body is positioned between a pair of seventh pipelines. Further, a spray head is arranged in the deaerator, and the sixth pipeline is connected with the spray head. Further, the free end of the condensed water conveying pipeline is connected with the condenser. Further, the deaerator is provided with a water outlet. Compared with the prior art, the device for effectively preventing the deaerator from vibrating in the heating season of the thermal power plant has the advantages that part of low-temperature water drainage is led into the low-pressure heater, so that the low-temperature water drainage is prevented from directly entering the deaerator, the water drainage amount of the low-temperature water drainage network entering the deaerator is reduced, the problem that the deaerator vibrates greatly due to the fact that the temperature difference between the low-temperature water drainage temperature of the heat network and the high-temperature water temperature of the deaerator is large is effectively solved, the running stability and reliability of the deaerator are improved, and the safe and stable running of the whole heating system is guaranteed. Drawings FIG. 1 is a schematic diagram of a perspective structure of a device for effectively preventing vibration of a deaerator in a heating season of