CN217899840U

CN217899840U - Deoxygenation system of condenser

Info

Publication number: CN217899840U
Application number: CN202221636448.9U
Authority: CN
Inventors: 刘明; 李世龙; 雷超; 王�锋; 陈文博; 寸永江; 吕文龙; 谢飞帆; 陈崇华; 赵利永; 张涛涛
Original assignee: Guoneng Mengjin Thermal Power Co ltd
Current assignee: Guoneng Mengjin Thermal Power Co ltd
Priority date: 2022-06-27
Filing date: 2022-06-27
Publication date: 2022-11-25
Anticipated expiration: 2032-06-27

Abstract

The utility model relates to a deoxidization system of condenser, deoxidization system includes condenser body (1), hot-well (2), heating device (3) and condensate pump (4), hot-well (2) set up in the bottom of condenser body (1) and with condenser body (1) intercommunication, condensate pump (4) be used for with hot-well (2) intercommunication sets up, wherein, heating device (3) set up hot-well (2) with between the condensate pump (4) and be located delivery port (21) department of hot-well (2), this heating device (3) are used for the heating follow hot-well (2) flow direction the condensate water of condensate pump (4). The oxygen removal system can effectively reduce the dissolved oxygen in the condensed water.

Description

Deoxygenation system of condenser

Technical Field

The disclosure relates to the technical field of condensers, in particular to a deoxidizing system of a condenser.

Background

The condenser is a heat exchanger for condensing the exhaust steam of the steam turbine into water, and is also called a water re-condenser. At present, the generator set actively realizes the expansion of external steam (heat) supply, improves the comprehensive utilization rate of energy and realizes the maximum income of enterprises.

In the related technology, the generator set supplies steam (heat) to the outside, the steam is generally conveyed and is not recycled, the water replenishing amount of the generator set is increased, and the condition that condensed water soluble oxygen exceeds the standard is easy to occur due to the limited water replenishing and deoxidizing margin of the original generator set, so that the safe and stable operation of the low-pressure heater and the condensed water pipeline equipment is influenced.

SUMMERY OF THE UTILITY MODEL

It is an object of the present disclosure to provide a deoxygenation system for a condenser that is capable of effectively reducing the amount of dissolved oxygen in the condensed water.

In order to realize the above-mentioned purpose, this disclosure provides a deoxidization system of condenser, deoxidization system includes condenser body, hot-well, heating device and condensate pump, the hot-well set up in the bottom of condenser body and with condenser body intercommunication, condensate pump be used for with hot-well intercommunication sets up, wherein, heating device sets up the hot-well with between the condensate pump and be located the delivery port department of hot-well, this heating device is used for the heating follow the hot-well flow direction condensate pump's condensate water.

Optionally, the heating device includes a temperature mixing tank communicating the hot well and the condensate pump, and a heating medium for heating the condensate is provided in the temperature mixing tank.

Optionally, the heating device comprises a communication pipeline for communicating the low-pressure heater and the temperature mixing pool, and the heating medium is configured to be hydrophobic from the low-pressure heater.

Optionally, the heating device comprises an accommodating cavity arranged in the mixing cavity Wen China, the upper part of the accommodating cavity is provided with a plurality of circulation holes communicated with the temperature mixing pool, and the communication pipeline is connected and communicated with the accommodating cavity.

Optionally, one end of the communication pipeline extending into the temperature mixing pool is arranged close to the water outlet.

Optionally, the number of the communication pipelines is multiple, and each communication pipeline is communicated with the temperature mixing pool and one low-pressure heater.

Optionally, the deoxidization system includes water replenishing device, water replenishing device is including stretching into the moisturizing pipe in the throat of condenser body, be provided with a plurality of nozzles that set up along axial interval on the moisturizing pipe.

Optionally, the water replenishing device comprises a plurality of water replenishing pipes arranged in parallel, and each water replenishing pipe is provided with a plurality of nozzles arranged at intervals along the axial direction.

Optionally, the nozzles are fixedly connected to the corresponding water replenishing pipes, and a reinforcing part is connected between each nozzle and the corresponding water replenishing pipe.

Optionally, the water replenishing device includes a water pipe, and a flow meter and a delivery pump which are arranged on the water pipe, and the water pipe is used for being communicated with an external water replenishing source.

Through above-mentioned technical scheme, in the deoxidization system of condenser that this disclosure provided, condensate after the condenser body internal condensation can get into condensate pump through the hot-well, this condensate can be participated in the doing work of steam turbine again by the condensate pump sending, here, because the condensate is the condition that dissolved oxygen volume exceeds standard easily, therefore, this heating device of disclosure can heat the condensate that enters into condensate pump, thereby this condensate can be through the mode deoxidization of heating, and then effectively reduced the dissolved oxygen volume in the condensate, the safety and stability operation of low pressure heater and condensate pipeline equipment has been guaranteed, heating device sets up the delivery port department at the hot-well simultaneously, can not occupy the space of hot-well or condenser body inside, the normal work of hot-well and condenser body has been guaranteed.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

FIG. 1 is a schematic structural diagram of an oxygen removal system of a condenser provided in accordance with an embodiment of the present disclosure;

FIG. 2 is a schematic structural diagram of a heating device in an oxygen removal system of a condenser provided according to an embodiment of the disclosure;

fig. 3 is a partial schematic view of a water replenishing device in an oxygen removal system of a condenser according to an embodiment of the disclosure.

Description of the reference numerals

1-a condenser body, 2-a hot well, 21-a water outlet, 3-a heating device, 31-a temperature mixing pool, 32-a communication pipeline, 33-a containing cavity, 331-a circulation hole, 4-a condensate pump, 5-a water replenishing device, 51-a water replenishing pipe, 52-a nozzle, 53-a water conveying pipe, 54-a flowmeter, 55-a conveying pump and 100-an external water replenishing source.

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, unless otherwise stated, terms of orientation such as "upper, lower, top, and bottom" are used based on the definition of fig. 1, and refer to the drawing direction of fig. 1 specifically, wherein upper corresponds to top and lower corresponds to bottom. The inner and outer parts are respectively arranged inside and outside the contour of the parts. Moreover, in the following description, when referring to the figures, the same reference numbers in different figures denote the same or similar elements, and the disclosure will not be repeated here.

According to the specific embodiment of this disclosure, provide deoxidization system of condenser, refer to and show in fig. 1, deoxidization system includes condenser body 1, hot-well 2, heating device 3 and condensate pump 4, and hot-well 2 sets up in the bottom of condenser body 1 and communicates with condenser body 1, and condensate pump 4 is used for setting up with hot-well 2 intercommunication, and wherein, heating device 3 sets up between hot-well 2 and condensate pump 4 and is located the delivery port 21 department of hot-well 2, and this heating device 3 is used for heating the condensate water that flows to condensate pump 4 from hot-well 2.

Through the technical scheme, in the deoxidization system of condenser that this disclosure provided, condensate after the condensation in the condenser body 1 can get into condensate pump 4 through the hot-well, this condensate can be by the 4 pump sending of condensate pump and then participate in the doing work of steam turbine once more, here, because the condensate exists the condition that dissolved oxygen volume exceeds standard easily, therefore, the heating device of this disclosure can heat the condensate that gets into condensate pump 4, thereby this condensate can be through the mode deoxidization of heating, and then effectively reduced the dissolved oxygen volume in the condensate, the safety and stability operation of low pressure heater and condensate equipment has been guaranteed, heating device 3 sets up the delivery port 21 department at hot-well 2 simultaneously, can not occupy the inside space of hot-well 2 or condenser body, hot-well 2 and condenser body 1's normal work has been guaranteed.

It should be noted that the condensed water pumped by the condensed water pump 4 can be heated into steam to work the steam turbine again, and the principle is well known to those skilled in the art, and the details of the disclosure are not repeated here. In addition, the present disclosure does not limit the specific structure of the heating device 3 and the specific heating manner, and the present disclosure will be described in detail in the following embodiments.

In the embodiment of the present disclosure, referring to fig. 1 and 2, the heating device 3 may include a temperature mixing tank 31 communicating the hot well 2 and the condensate pump 4, and a heating medium for heating the condensate water is disposed in the temperature mixing tank 31. Like this, the heating medium can heat the condensate water in mixing warm pond 31, and simple structure and easily realization, here, can improve the temperature of condensate water through increasing the time that the condensate water stayed in mixing warm pond 31, and then improve the deoxidization effect, and this disclosure does not do the restriction to this. In addition, the present disclosure does not limit the specific composition of the heating medium, and the present disclosure will be described in detail in the following embodiments.

In some embodiments of the present disclosure, referring to fig. 1 and 2, the heating device 3 includes a communication line 32 for communicating the low-pressure heater and the temperature-mixing tank 31, and the heating medium is configured to be hydrophobic from the low-pressure heater. Like this, adopt low pressure feed water heater's hydrophobic heating condensate water, can effectively utilize the waste heat of the exhaust steam of steam turbine, improve the utilization ratio of the energy, hydrophobic and condensate water can be together by the pump sending simultaneously, and then has also improved the utilization ratio of water resource. Here, the hydrophobic property may include normal hydrophobic property and accident hydrophobic property, which the present disclosure does not limit. In addition, the exhaust steam of the steam turbine can enter the low-pressure heater before entering the condenser body 1 to be condensed, and then accident drainage in the low-pressure heater can be heated. The principles and construction of low pressure heaters are well known to those skilled in the art and will not be described in further detail in this disclosure.

Of course, according to other embodiments, the heating medium of the present disclosure may also be configured as water vapor or other liquid or gas with higher temperature, and the present disclosure is not limited herein too much. In addition, the heating device 3 of the present disclosure may also heat the condensed water through a structure such as a resistance wire, and the present disclosure is not limited too much here.

In some embodiments of the present disclosure, referring to fig. 2, the heating device may include an accommodating chamber 33 disposed in the temperature mixing tank 31, an upper portion of the accommodating chamber 33 has a plurality of flow holes 331 communicating with the temperature mixing tank 31, and a communication pipe 32 is connected to and communicates with the accommodating chamber 33. Therefore, the hydrophobic water can flow into the temperature mixing pool 31 through the accommodating cavity 33 through the flow through holes 331, the flow speed of the hydrophobic water is reduced, and the condensed water is in full contact with the hydrophobic water. Here, the receiving chamber 33 may be disposed right below the heat well 2, which is not limited by the present disclosure. In addition, the accommodating cavity 33 may also be communicated with the temperature mixing tank 31 through other structures, which is not limited in this disclosure.

In some embodiments of the present disclosure, referring to fig. 1, one end of the communication pipe 32 extending into the temperature mixing tank 31 is disposed near the water outlet 21. Therefore, accident drainage can be rapidly mixed with the condensed water and the condensed water is heated, and the utilization rate of heat energy is improved.

In some embodiments of the present disclosure, referring to fig. 1 and 2, the number of the communication pipes 32 may be plural, and each of the communication pipes 32 communicates the temperature mixing tank 31 and one low-pressure heater. Therefore, the accident hydrophobic water amount in the temperature mixing pool 31 can be effectively ensured, and the heating effect on the condensed water is ensured.

In the embodiment of the present disclosure, referring to fig. 1 and 3, the oxygen removing system includes a water replenishing device 5, the water replenishing device 5 may include a water replenishing pipe 51 extending into the throat portion of the condenser body 1, and a plurality of nozzles 52 are disposed on the water replenishing pipe 51 at intervals along the axial direction. Like this, moisturizing device 5 is when realizing the moisturizing, nozzle 52 can be with water blowout and atomizing, and then the exhaust steam that gets into the throat can heat atomizing water, thereby on the one hand through the atomizing to the water of supplementing, the dissolved oxygen volume of the water of replenishment has been reduced, on the other hand passes through the heating of exhaust steam to atomizing water, the dissolved oxygen volume of the water of replenishment has further been reduced, thereby the dissolved oxygen volume of the condensate water that gets into condenser body 1 has effectively been reduced, thereby also cooperate moisturizing device 5 to realize the dual deoxidization to the condensate water, the safety and stability of low pressure heater and condensate pipe equipment has further been guaranteed and has been operated.

In some embodiments of the present disclosure, referring to fig. 1 and 3, the water replenishing device 5 may include a plurality of water replenishing pipes 51 arranged in parallel, and each water replenishing pipe 51 is provided with a plurality of nozzles 52 arranged at intervals in the axial direction. Therefore, the deoxygenation effect on the condensed water can be improved while the water supplement amount is ensured.

In some embodiments of the present disclosure, referring to fig. 1, the nozzles 52 are fixedly connected with the corresponding water replenishing pipes 51, and a reinforcing part is connected between each nozzle 52 and the corresponding water replenishing pipe 51. In this way, the stability of the connection of the nozzle 52 with the water replenishing pipe 51 can be ensured, preventing the nozzle 52 from falling off, and here, the reinforcing portion may be configured as a welding portion by which the nozzle 52 and the corresponding water replenishing pipe 51 can be welded together. Of course, according to other embodiments of the present disclosure, the nozzles 52 may be rotatably connected to the corresponding water replenishing pipes 51 by 360 °, which is not limited by the present disclosure.

In some embodiments of the present disclosure, the nozzles 52 and the corresponding water replenishing pipes 51 may be screwed together. In this way, the assembly of the nozzle 52 with the corresponding water replenishing pipe 51 is facilitated.

In some embodiments of the present disclosure, referring to fig. 1, the water replenishing device 5 may include a water pipe 53, and a flow meter 54 and a delivery pump 55 disposed on the water pipe 53, wherein the water pipe 53 is used for communicating with an external water replenishing source 100. Thus, water from the external water replenishing source 100 can enter the water pipe 53 through the delivery pump 55, so as to ensure continuous supply of water to the water replenishing pipe 51, and here, the flow meter 54 can reflect the water replenishing amount in real time, so that a person can visually observe the water replenishing amount data conveniently. According to some embodiments, the delivery pump 55 may be configured as a variable frequency pump, i.e., the flow rate of water entering the water delivery pipe 53 may be adjusted, which is not limited by the present disclosure. In addition, moisturizing device 5 can also include reserve moisturizing case, and this reserve moisturizing case can communicate with moisturizing pipe 51 through reserve water pipe, and then when outside moisturizing source 100 accident stop work, guarantees the normal operating of 1 moisturizing work of condenser body, has promoted moisturizing device 5's reliability. Furthermore, according to some embodiments, the external water replenishing source 100 may be water directly produced by a factory, so that the direct supply of the replenishing water may be realized through the external water replenishing source 100 and the water conveying pipe 53, which is not limited by the present disclosure.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the above embodiments, the various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations will not be further described in the present disclosure.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims

1. The utility model provides a deoxidization system of condenser, its characterized in that, the deoxidization system includes condenser body, hot-well, heating device and condensate pump, the hot-well set up in the bottom of condenser body and with condenser body intercommunication, condensate pump be used for with hot-well intercommunication sets up, wherein, heating device sets up the hot-well with between the condensate pump and be located the delivery port department of hot-well, this heating device is used for the heating follow the hot-well flow direction condensate pump's condensate water.

2. The deoxygenation system of a condenser of claim 1, wherein the heating device comprises a temperature mixing tank communicated with the hot well and the condensate pump, and a heating medium for heating the condensate water is arranged in the temperature mixing tank.

3. The condenser oxygen removal system of claim 2, wherein the heating device comprises a communication line for communicating a low-pressure heater and the temperature mixing tank, and the heating medium is configured to drain water from the low-pressure heater.

4. The deoxygenation system of a condenser according to claim 3, wherein the heating device comprises a containing cavity which is arranged in the mixing cavity Wen China, the upper portion of the containing cavity is provided with a plurality of circulation holes which are communicated with the mixing temperature pool, and the communication pipeline is connected and communicated with the containing cavity.

5. The condenser oxygen removal system of claim 3, wherein the end of the communication pipeline extending into the temperature mixing tank is arranged near the water outlet.

6. The condenser oxygen removal system according to claim 3, wherein the number of the communication pipes is plural, and each of the communication pipes communicates the temperature mixing tank and one of the low-pressure heaters.

7. The condenser oxygen removal system according to any one of claims 1 to 6, wherein the oxygen removal system comprises a water replenishing device, the water replenishing device comprises a water replenishing pipe extending into the throat part of the condenser body, and a plurality of nozzles are arranged on the water replenishing pipe at intervals along the axial direction.

8. The condenser oxygen removal system according to claim 7, wherein the water supply device comprises a plurality of water supply pipes arranged in parallel, and each water supply pipe is provided with a plurality of nozzles arranged at intervals along the axial direction.

9. The condenser oxygen removal system according to claim 7, wherein the nozzles are fixedly connected with the corresponding water replenishing pipes, and a reinforcing part is connected between each nozzle and the corresponding water replenishing pipe.

10. The deoxygenation system of a condenser according to claim 7, wherein the water replenishing device comprises a water pipe, and a flow meter and a delivery pump which are arranged on the water pipe, and the water pipe is used for being communicated with an external water replenishing source.