WO2021203580A1 - 一种供热系统调峰蓄热用电极锅炉及其应用 - Google Patents

一种供热系统调峰蓄热用电极锅炉及其应用 Download PDF

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Publication number
WO2021203580A1
WO2021203580A1 PCT/CN2020/103646 CN2020103646W WO2021203580A1 WO 2021203580 A1 WO2021203580 A1 WO 2021203580A1 CN 2020103646 W CN2020103646 W CN 2020103646W WO 2021203580 A1 WO2021203580 A1 WO 2021203580A1
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Prior art keywords
electrode
electrode boiler
scraper
heat storage
inner barrel
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PCT/CN2020/103646
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English (en)
French (fr)
Inventor
王玉君
刘�东
冯广伟
付深清
李存鑫
郭琳
颜晗
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SEPCO Electric Power Construction Co Ltd
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SEPCO Electric Power Construction Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00—Methods of steam generation characterised by form of heating method
    • F22B1/28—Methods of steam generation characterised by form of heating method in boilers heated electrically
    • F22B1/30—Electrode boilers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/42—Applications, arrangements or dispositions of alarm or automatic safety devices
    • F22B37/46—Applications, arrangements or dispositions of alarm or automatic safety devices responsive to low or high water level, e.g. for checking, suppressing or extinguishing combustion in boilers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/48—Devices or arrangements for removing water, minerals or sludge from boilers ; Arrangement of cleaning apparatus in boilers; Combinations thereof with boilers
    • F22B37/52—Washing-out devices

Definitions

  • the invention relates to the technical field of electrode boilers, in particular to an electrode boiler for peak regulation and heat storage of a heating system and its application.
  • Heat storage peak shaving is applied to thermal power plants in the heating season. During peak periods of new energy power generation, the power generation load of thermal power plants needs to be reduced. However, because the power generation and heat supply of thermal power plants are coupled, once the power generation load is reduced, the heat supply It will also be reduced accordingly. In order to ensure the heating of people's death, heat storage equipment must be added.
  • Electrode boiler is a hot water (steam) boiler that uses electric energy to heat feed water to obtain specified parameters. Different from the heating principle of conventional electric heating boilers, conventional electric heating boilers are energized and heated by electric heating tubes made of resistance wire, and low-voltage power supply is used, which is not suitable for making a single high-power boiler. Electrode boilers carry current and generate heat through the conductivity and resistance of water. The basic operating principle is in line with the conditions for using high-voltage power supplies and making a single high-power boiler.
  • Electrode boilers have decades of history in developed countries in Europe and America, and the scope of product use It is currently mainly used as a start-up boiler for nuclear power plants, so the product volume is very small, and a very small amount of domestic start-up boilers for nuclear power generation are also used.
  • Patent document 201120183304.8 discloses an electrode boiler, which solves the problem of dry burning when the user uses too much steam and the low-level system-controlled water-replenishing pump is too late to replenish water by installing a level gauge on the outside of the furnace body.
  • Patent document 201520422407.3 discloses an electrode boiler control system, which realizes the pressure and load control of the electrode boiler through a load control module, and controls the opening and closing of the feed water pump and the electric valve for the feed water through the feedback water level connection of the water level sensor to realize the boiler Automatic control of internal water supply.
  • Some existing electrode boilers still have the following shortcomings: (1) The electrode boiler is easy to produce scale during long-term use, and the scale is not easy to clean; (2) The cold water flowing into the electrode boiler contains many impurities; (3) The electrode boiler It is difficult to automatically adjust the heating load according to the temperature in the furnace.
  • Patent Document 201521041564.6 discloses an electrode-heated boiler, an upper electrode that can move up and down is arranged at the upper end of the boiler body, and the adjusting screw is connected with an adjusting mechanism with a decelerating motor to adjust the upper electrode to move up and down. , Used to adjust the heating power.
  • this adjustment method first requires the design of a more complex adjustment structure, and requires the cooperation of a number of other components to achieve the adjustment of the heating power, and the installation of the adjustment structure is also more cumbersome; Abrasion occurs when moving, and long-term abrasion can easily cause poor contact between the electrodes, leading to failure of power regulation.
  • the present invention aims to provide an electrode boiler for peak regulation and heat storage of a heating system and its application.
  • the electrode boiler designed by the invention has the characteristics of cleaning scale regularly, ensuring the purity of cold water, preventing the electrode from idling and so on.
  • the first object of the present invention is to provide an electrode boiler for peak regulation and heat storage of a heating system.
  • the second object of the present invention is to provide an application of the electrode boiler for peak regulation and heat storage of the heating system.
  • the present invention discloses an electrode boiler for peak regulation and heat storage of a heating system, which includes an outer shell, an inner barrel, a sealing cover, a water outlet pipe, a steam outlet pipe, a motor, a screw rod, a sliding table, an electrode, a pressure pump, and a water inlet pipe. , Temperature sensor, controller; among them;
  • the inner barrel is arranged in the cavity of the outer shell, the sealing cover is used to seal the upper opening of the outer shell, one end of the water outlet pipe is located at the bottom of the inner barrel, and the other end is located outside the outer shell; the steam outlet pipe is arranged on the sealing cover
  • the motor is fixed on the sealing cover, one end of the screw rod is connected to the motor, and the other end of the screw rod passes through the sealing cover and is connected to a heating device located in the inner barrel.
  • the heating device includes a sliding table and an electrode.
  • the sliding table is fixed on the electrode, and the screw rod is fixed with the entire heating device through the screw hole opened on the sliding table; one end of the water inlet pipe is located in the inner barrel, and the filtering device is arranged in the water inlet pipe;
  • the pressure pump is arranged on the water inlet pipe, the temperature sensor is used to detect the temperature in the inner tub; the controller is used to control the motor and/or the electrode action according to the information fed back by the temperature sensor.
  • the present invention discloses the application of the electrode boiler for peak regulation and heat storage of the heating system in thermal power plants and nuclear power plants.
  • the electrode boiler designed in the present invention can regularly clean the scale adhered on the inner wall of the boiler.
  • the electrode boiler designed in the present invention is provided with a multi-stage filter mechanism composed of double-layer filter screens and filter cloth inside the water inlet pipe, which can fully filter cold water and ensure the purity of the inlet water.
  • the electrode boiler designed in the present invention allows the electrode to move up and down in the inner barrel through the cooperation of the screw rod and the sliding table, so as to change the contact area between the electrode and the water, and then can automatically change the heating load of the electrode according to the temperature inside the boiler .
  • the electrode boiler designed in the present invention realizes automatic water injection due to lack of water through the action of a liquid level sensor, a controller and a pressure pump, avoids excessive no-load of the electrode, and is beneficial to prolong the service life of the electrode.
  • Fig. 1 is a schematic diagram of the structure of an electrode boiler according to an embodiment of the present invention.
  • Fig. 2 is a schematic diagram of the structure of an electrode boiler according to a second embodiment of the present invention.
  • Fig. 3 is a schematic diagram of the structure of an electrode boiler according to a third embodiment of the present invention.
  • Fig. 4 is a schematic diagram of the scraper structure of the fourth embodiment of the present invention.
  • Fig. 5 is a schematic diagram of the structure of an electrode boiler according to a fifth embodiment of the present invention.
  • Fig. 6 is a partial enlarged view of A in Fig. 5 of the present invention.
  • the present invention proposes an electrode boiler for peak regulation and heat storage of a heating system; the present invention will now be further described with reference to the drawings and specific embodiments.
  • an electrode boiler for peak shaving and heat storage of a heating system includes: an outer shell 1, an inner barrel 2, a sealing cover 3, a water outlet pipe 4, a steam outlet pipe 5, a motor 6, and a screw rod 7. Sliding table 8, electrode 9, pressure pump 10, water inlet pipe 11, temperature sensor 12, controller 13; among them;
  • the inner barrel 2 is arranged in the cavity of the outer shell 1, the sealing cover 3 is used to seal the upper opening of the outer shell 1, one end of the water outlet pipe 4 is located at the bottom of the inner barrel 2, and the other end is located outside the outer shell;
  • the tube 5 is arranged on the sealing cover, the motor 6 is fixed on the sealing cover 3, one end of the screw rod 7 is connected to the motor 6, and the other end of the screw rod passes through the sealing cover 3 and is connected to the heating device located in the inner barrel 2
  • the heating device includes a sliding table 8 and an electrode 9.
  • the sliding table 8 is fixed on the electrode 9, and the screw rod 7 is fixed with the entire heating device through a screw hole opened on the sliding table 8;
  • One end of the water pipe 11 is located in the inner tub 2, and the water inlet pipe is provided with a filtering device; the pressure pump 10 is provided on the water inlet pipe 11, the temperature sensor 12 is used to detect the temperature in the inner tub; the controller 13 is used Based on the information fed back from the temperature sensor 12, the motor 6 and the electrode 9 are controlled to operate.
  • One of the characteristics of the electrode boiler for peak regulation and heat storage of the heating system of the present invention is that the power of the electrode heating water can be adjusted through the cooperation between the motor, the screw rod, the sliding table and the electrode, which is compared with the adjustment mechanism mentioned in the background art.
  • the adjustment mechanism designed by the present invention is more ingenious and practical, specifically: when the entire device is powered on, the temperature sensor can collect the temperature information inside the inner barrel, and transmit the information to the controller, and the controller analyzes and processes the information. If the temperature is lower than the set value, the controller will control the servo motor to start forward rotation, and the servo motor will drive the screw rod to rotate. Because the screw rod and the sliding table are connected by threads, the screw action occurs between the screw rod and the sliding table.
  • the sliding table will move down along the screw rod, and then drive the electrode down to go deep into the inner barrel, fully contact with water, increase the contact area with water, and increase the heating load, and vice versa. If the temperature inside the inner barrel is too high, the controller will control the servo motor to start reverse rotation, and the sliding table will drive the electrode to move upward, reducing the contact area with water and reducing the heating load; further, it can also achieve the heating temperature to the set point. After setting the value, the controller controls the electrode to quickly and completely leave the contact with the water to ensure the accuracy of the heating temperature. If necessary, the electrode is disconnected from the electricity after the contact is separated.
  • the electrode boiler further includes a liquid level sensor 14 for detecting the liquid level in the inner cylinder; the controller 13 controls the pressurizing pump according to the information fed back by the liquid level sensor 14 10 actions to automatically add water when water is lacking.
  • the liquid level sensor can collect the water level information inside the inner barrel and transmit the information to the controller.
  • the controller will control the boosting pump 10 to start.
  • the pressurizing pump pumps water from the inside of the water supply device and transports it to the inside of the inner barrel through the water inlet pipe 11, and the electrodes are protected to prevent the electrode boiler from being empty when the electrode boiler is short of water.
  • the inner tub 2 is provided with a scraper 15 which is connected to a motor 16 provided between the bottom surface of the inner tub 2 and the bottom surface of the housing 1, and the scraper 15 is driven by the motor at a high speed. Rotation can realize the cleaning of scale in the inner barrel.
  • the scraper 15 includes a first scraper 17, a second scraper 18, the first scraper 17 and the second scraper 18 are perpendicular to each other, and the first scraper
  • the cross-sectional shapes of 17 and the second scraper 18 are both triangular, the first scraper is attached to the bottom surface of the inner tub, and the second scraper is attached to the inner wall of the inner tub.
  • the motor drives the scraper to rotate. Because the first scraper is attached to the bottom surface of the inner barrel, and the second scraper is attached to the inner wall of the inner barrel Therefore, the motor drives the friction between the first and second scrapers and the inner barrel to scrape off the scale on the inner wall.
  • a filling material 19 is arranged between the bottom surface of the inner barrel 2 and the bottom surface of the outer shell 1.
  • the function of the filling material is: (1) heat preservation function, which reduces the heat loss of the inner barrel as much as possible, thereby Avoid frequent and abnormal starting of motor 6, electrode 9, pressure pump 10, etc.; (2) Increase the stability of the motor.
  • the motor will produce greater vibration when it is rotating at high speed, which is likely to cause temperature sensor 12 and liquid level sensor 13 and other damages, the stability of the motor can be effectively increased by setting the filling material to avoid damage to other parts.
  • the filter device includes a filter screen 20 and a filter cloth 21 arranged between two parts of the filter screen, and the filter screen is a double-layer filter screen.
  • the pressurized pump pumps water from the inside of the water supply device, and the water delivered by the water inlet pipe 11 passes through a multi-stage filter mechanism formed by a double-layer filter screen and a filter cloth to fully filter and ensure the purity of the water entering the inner barrel.
  • an insulation layer is arranged between the outer shell 1 and the inner barrel 2 to reduce the heat loss in the inner barrel.
  • the motor 6 is a servo motor; the rotation of the motor 6 drives the screw rod 7 to rotate relative to the sliding table 8, thereby realizing the height adjustment of the electrode 9.
  • the electrode boiler designed by the invention has the characteristics of cleaning scale regularly, ensuring the purity of cold water, preventing the electrode from idling and so on.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
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Abstract

本发明涉及电极锅炉技术领域，尤其涉及一种供热系统调峰蓄热用电极锅炉及其应用。所述电极锅炉包括：内桶：设置在外壳的空腔内；密封盖：用于密封外壳的上开口；所述密封盖上设置出汽管、电机；出水管：其一端位于内桶的底部，另一端位于外壳外部；丝杆：其一端和电机连接，另一端穿过密封盖后位于内桶中的加热装置连接；进水管：其一端位于内桶中，且进水管内和进水管上分别设置过滤装置、加压泵；温度传感器：用于检测内筒内的水温；控制器：用于根据温度传感器反馈的信息控制电机和/或电极动作。本发明设计的电极锅炉通过丝杆和滑台的配合，使得电极可以在内桶中上下移动改变电极与水的接触面积，进而改变电极的加热负荷。

Description

一种供热系统调峰蓄热用电极锅炉及其应用 技术领域
本发明涉及电极锅炉技术领域，尤其涉及一种供热系统调峰蓄热用电极锅炉及其应用。
 背景技术
蓄热调峰应用于供热季的火电机组，在新能源发电高峰时段，需要降低火电机组的发电负荷，但因为火电机组的发电与供热是耦合关系，一旦降低发电负荷，那么供热量也随之减少，为保证民生供热，须增加蓄热设备。
电极锅炉是一种利用电能加热给水以获得规定参数的热水(蒸汽)锅炉。与常规的电加热锅炉加热原理不同，常规的电加热锅炉是利用电阻丝制作的电加热管通电加热，采用低压电源，不适合制作单台大功率锅炉。电极锅炉是通过水的导电性和电阻性运载电流并产生热量，基本运行原理符合采用高压电源、制作单台大功率锅炉的条件，电极锅炉在欧美发达国家已有几十年的历史，产品使用范围窄，目前主要作为核电厂启动锅炉，故产品量非常少，国内核发电启动锅炉也有极少量使用。
专利文献201120183304.8公开了一种电极锅炉，其通过在炉体外侧设置液位计解决了当用户使用蒸汽量过大，低水位系统控制的补水泵来不及补水时，很容易出现干烧的问题。专利文献201520422407.3公开了一种电极锅炉控制系统，其通过负荷控制模块实现电极锅炉的压力和负荷的控制，通过水位传感器的反馈水位连接控制给水泵和用于给水的电动阀的启闭，实现锅炉内供水的自动控制。
 技术问题
现有的一些电极锅炉仍然存在下列不足：(1)电极锅炉在长期使用过程中易产生水垢，且水垢不易清理；(2)通入电极锅炉内的冷水含有较多杂质；(3)电极锅炉难以根据炉内的温度自动调节加热负荷。
对于上述(3)，尽管专利文献201521041564.6公开了一种电极加热的锅炉，其在锅炉炉体内部上端设置可上下移动的上电极，调节丝杠连接带有减速电机的调节机构调节上电极上下移动，用于调节加热功率。但本发明人认为：这种调节方式首先需要设计比较复杂的调节结构，而且需要多个其他部件的配合才能实现加热功率的调节，调节结构的安装也较为繁琐；其次，其在两部分电极相对移动时会产生磨损，长时间的磨损很容易造成电极之间接触不良，导致功率调节失效。
 技术解决方案
针对上述存在的问题，本发明旨在提供一种供热系统调峰蓄热用电极锅炉及其应用。本发明设计的电极锅炉具备定期清理水垢、保证冷水的纯净、防止电极空载等特点。
本发明第一目的：提供一种供热系统调峰蓄热用电极锅炉。
本发明第二目的：提供所述供热系统调峰蓄热用电极锅炉的应用。
为实现上述发明目的，本发明公开了下述技术方案：
首先，本发明公开一种供热系统调峰蓄热用电极锅炉，包括：外壳、内桶、密封盖、出水管、出汽管、电机、丝杆、滑台、电极、加压泵、进水管、温度传感器、控制器；其中；
所述内桶设置在外壳的空腔内，所述密封盖用于密封外壳的上开口，所述出水管的一端位于内桶的底部，另一端位于外壳外部；所述出汽管设置在密封盖上，所述电机固定在密封盖上，所述丝杆的一端和电机连接，丝杆的另一端穿过密封盖后位于内桶中的加热装置连接，所述加热装置包括滑台和电极，所述滑台固定在电极上，所述丝杆通过开设在滑台上的螺孔与整个加热装置固定在一起；所述进水管的一端位于内桶，且所述进水管内设置有过滤装置；所述加压泵设置在进水管上，所述温度传感器用于检测内桶内温度；所述控制器用于根据温度传感器反馈的信息控制电机和/或电极动作。
其次，本发明公开所述供热系统调峰蓄热用电极锅炉在火电厂、核电厂中的应用。
 有益效果
(1)本发明设计的电极锅炉可以定期对锅炉内壁上粘结的水垢进行清理。
(2)本发明设计的电极锅炉在进水管内部设置了由双层滤网和滤布构成的多级过滤机构，可以充分过滤冷水，保证进水的纯净。
(3)本发明设计的电极锅炉通过丝杆和滑台的配合，使得电极可以在内桶中上下移动，以便于改变电极与水的接触面积，进而可以根据锅炉内部的温度自动改变电极的加热负荷。
(4)本发明设计的电极锅炉通过液位传感器、控制器和加压泵的作用，实现缺水自动注水，避免电极过度空载，有利于延长电极的使用寿命。
 附图说明
图1为本发明一种实施例的电极锅炉结构示意图。
图2为本发明第二种实施例的电极锅炉结构示意图。
图3为本发明第三种实施例的电极锅炉结构示意图。
图4为本发明第四种实施例的刮板结构示意图。
图5为本发明第五种实施例的电极锅炉结构示意图。
图6为本发明图5中A的局部放大图。
上述附图中标记分别代表：1-外壳、2-内桶、3-密封盖、4-出水管、5-出汽管、6-电机、7-丝杆、8-滑台、9-电极、10-加压泵、11-进水管、12-温度传感器、13-控制器、14-液位传感器、15-刮板、16-电动机、17-第一刮板，18-第二刮板、19-填充材料、20-过滤网、21-滤布。
 本发明的实施方式
本发明提出一种供热系统调峰蓄热用电极锅炉；现结合附图和具体实施方式对本发明进一步进行说明。
在一个典型实施方式中，参考图1，一种供热系统调峰蓄热用电极锅炉，包括：外壳1、内桶2、密封盖3、出水管4、出汽管5、电机6、丝杆7、滑台8、电极9、加压泵10、进水管11、温度传感器12、控制器13；其中；
所述内桶2设置在外壳1的空腔内，所述密封盖3用于密封外壳1的上开口，所述出水管4的一端位于内桶2的底部，另一端位于外壳外部；所述出汽管5设置在密封盖上，所述电机6固定在密封盖3上，所述丝杆7的一端和电机6连接，丝杆的另一端穿过密封盖3后位于内桶2中的加热装置连接，所述加热装置包括滑台8和电极9，所述滑台8固定在电极9上，所述丝杆7通过开设在滑台8上的螺孔与整个加热装置固定在一起；所述进水管11的一端位于内桶2，且所述进水管内设置有过滤装置；所述加压泵10设置在进水管11上，所述温度传感器12用于检测内桶内温度；所述控制器13用于根据温度传感器12反馈的信息控制电机6、电极9动作。
本发明供热系统调峰蓄热用电极锅炉的特点之一是：通过电机、丝杆、滑台和电极之间的配合实现电极加热水的功率的调节，相对背景技术中提及的调节机构，本发明设计的调节机构更加巧妙实用，具体为：当整个装置通电以后，温度传感器可以收集到内桶内部的温度信息，并且将信息传递给控制器，控制器对信息进行分析处理，如果内桶内部的温度低于设定值，控制器会控制伺服电机启动正转，伺服电机带动丝杆转动，由于丝杆与滑台之间利用螺纹进行连接，因此丝杆与滑台之间发生螺纹作用，由于丝杆的相对高度固定不便，滑台会顺着丝杆向下移动，进而带动电极向下移动，深入内桶深处，充分与水接触，增大与水的接触面积，提高加热负荷，反之，如果内桶内部的温度过高，控制器会控制伺服电机启动反转，滑台则带动电极向上移动，减小与水的接触面积，减小加热负荷；进一步地，还可以实现加热温度到设定值后，控制器控制电极迅速、彻底脱离与水的接触，保证加热温度的精准性，必要时，在脱离接触后断开对电极的通电。
可以理解的是，在所述第一实施例的基础上，还可衍生出包括但不限于以下的技术方案或者其结合，以解决不同的技术问题，实现不同的发明目的，具体示例如下：
在一个典型实施方式中，参考图2，所述电极锅炉还包括用于检测内筒内的液位高度的液位传感器14；所述控制器13根据液位传感器14反馈的信息控制加压泵10动作，以便于实现缺水时自动加水。
液位传感器可以收集到内桶内部的水位信息，并将信息传递给控制器，当液位传感器收集到内桶内部的水位过低，容易造成电极空载时，控制器会控制加压泵10启动，加压泵从供水装置内部抽水，由进水管11输送到内桶内部，电极进行保护，避免电极锅炉在缺水时电极空载。
在一个典型实施方式中，参考图3，所述内桶2内设置有刮板15，所述刮板和设置在内桶2底面和外壳1底面之间的电动机16连接，通过电动机带动刮板15高速转动，可以实现对内桶内水垢的清理。
在一个典型实施方式中，参考图4，所述刮板15包括第一刮板17，第二刮板18，所述第一刮板17与第二刮板18相互垂直，且第一刮板17与第二刮板18的截面形状都为三角形，第一刮板与内桶的底面贴合，第二刮板与内桶的内壁贴合。
当需要对内桶内部的水垢进行清理时，打开密封盖，启动电动机，电动机带动刮板转动，由于第一刮板与内桶的底表面相贴合，而第二刮板与内桶的内壁相贴合，因此电动机带动第一刮板和第二刮板与内桶之间发生摩擦，刮除内壁上的水垢。
在一个典型实施方式中，参考图5，所述内桶2底面和外壳1底面之间设置填充材料19，所述填充材料的作用是：(1)保温作用，尽可能减少内桶热量的散失，从而避免电机6、电极9、加压泵10等频繁启动、非正常启动；(2)增加电机的稳定性，电机在高速旋转运行时会产生较大的振动，容易造成温度传感器12、液位传感器13等的损坏，通过设置填充材料可以有效增加电机的稳定性，避免对其他部件的损害。
在一个典型实施方式中，参考图6，所述过滤装置包括过滤网20和设置在两部分过滤网之间的滤布21，且所述过滤网为双层滤网。加压泵从供水装置内部抽水，由进水管11输送水经过双层滤网与滤布形成的多级过滤机构，进行充分过滤，保证了进入内桶的水的纯净。
在一个典型实施方式中，所述外壳1和内桶2之间设置有保温层，减少内桶中热量的散失。
在一个典型实施方式中，所述电机6为伺服电机；电机6旋转带动丝杆7相对于滑台8转动，进而实现电极9高度调节。
以上所述仅为本发明的优选实施例，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。
 工业实用性
本发明设计的电极锅炉具备定期清理水垢、保证冷水的纯净、防止电极空载等特点。

Claims (10)

  1. 一种供热系统调峰蓄热用电极锅炉，其特征在于，包括：
    内桶：设置在外壳的空腔内；
    密封盖：用于密封外壳的上开口；所述密封盖上设置出汽管、电机；
    出水管：其一端位于内桶的底部，另一端位于外壳外部；
    丝杆：其一端和电机连接，另一端穿过密封盖后位于内桶中的加热装置连接，所述加热装置包括滑台和电极，所述滑台固定在电极上，所述丝杆通过开设在滑台上的螺孔与整个加热装置固定在一起；
    进水管：其一端位于内桶中，且进水管内和进水管上分别设置过滤装置、加压泵；
    温度传感器：用于检测内筒内的水温；
    控制器：用于根据温度传感器反馈的信息控制电机和/或电极动作。
  2. 如权利要求1所述的供热系统调峰蓄热用电极锅炉，其特征在于，所述电极锅炉还包括用于检测内筒内的液位高度的液位传感器；所述控制器能够根据液位传感器反馈的信息控制加压泵动作。
  3. 如权利要求1所述的供热系统调峰蓄热用电极锅炉，其特征在于，所述内桶内设置有刮板，所述刮板和设置在内桶底面和外壳底面之间的电动机连接。
  4. 如权利要求3所述的供热系统调峰蓄热用电极锅炉，其特征在于，所述刮板包括第一刮板，第二刮板，所述第一刮板与第二刮板相互垂直，且第一刮板与第二刮板的截面形状都为三角形，第一刮板与内桶的底面贴合，第二刮板与内桶的内壁贴合。
  5. 如权利要求1所述的供热系统调峰蓄热用电极锅炉，其特征在于，所述内桶底面和外壳底面之间设置填充材料。
  6. 如权利要求1所述的供热系统调峰蓄热用电极锅炉，其特征在于，所述过滤装置包括过滤网和设置在两部分过滤网之间的滤布。
  7. 如权利要求6所述的供热系统调峰蓄热用电极锅炉，其特征在于，所述过滤网为双层滤网。
  8. 如权利要求1所述的供热系统调峰蓄热用电极锅炉，其特征在于，所述外壳和内桶之间设置有保温层。
  9. 如权利要求1-8任一项所述的供热系统调峰蓄热用电极锅炉，其特征在于，所述电机为伺服电机。
  10. 如权利要求1-9任一项所述的供热系统调峰蓄热用电极锅炉在火电厂、核电厂中的应用。
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