WO2019006718A1 - 一种垃圾焚烧发电厂水泵入口倒置滤网的过滤装置 - Google Patents

一种垃圾焚烧发电厂水泵入口倒置滤网的过滤装置 Download PDF

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Publication number
WO2019006718A1
WO2019006718A1 PCT/CN2017/091917 CN2017091917W WO2019006718A1 WO 2019006718 A1 WO2019006718 A1 WO 2019006718A1 CN 2017091917 W CN2017091917 W CN 2017091917W WO 2019006718 A1 WO2019006718 A1 WO 2019006718A1
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Prior art keywords
filter
container
barrel
filter screen
net
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PCT/CN2017/091917
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English (en)
French (fr)
Inventor
马进
李松军
刘超
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深圳市能源环保有限公司
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Priority to PCT/CN2017/091917 priority Critical patent/WO2019006718A1/zh
Publication of WO2019006718A1 publication Critical patent/WO2019006718A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/20—Filtering

Definitions

  • the invention relates to a water pump inlet filter device, in particular to a filter device for a water pump inlet inverted filter screen of a waste incineration power plant.
  • the boiler feed water system of waste incineration power plant is mainly composed of feed water pump, pipeline and valve.
  • the feed water is mainly composed of steam turbine condensate and chemical make-up water.
  • the condensed water accounts for 90%-95% of the total water supply, and the condensed water Impurities are mainly divided into trace amounts of dissolved salts and silicon compounds as well as a small amount of suspended and mechanical impurities.
  • the existing condensate pump inlet of the waste incineration power plant generally adopts the horizontal pipeline filter network.
  • the filter net is prone to fouling.
  • the pump must be stopped and the filter container cover must be opened before the filter can be cleaned. . If the unblocking is not timely, the condensate pump may not be inhaled in a serious situation, and the cavitation may occur, which seriously affects the safe operation of the unit.
  • the present invention provides a filtering device for a water pump inlet inverted filter of a waste incineration power plant.
  • the utility model comprises a filter container and a filter net built in the filter container.
  • the filter container and the filter net have a barrel structure, the water inlet of the filter container is arranged on the lower side, and the water outlet is arranged on the upper side, and the bottom of the filter net is upwards and the barrel
  • the mouth is inverted, and a ferromagnetic body is further disposed at the bottom of the filter barrel.
  • An electromagnet is further disposed on the cover of the filter container. When the electromagnet is energized, the ferromagnetic body is attracted to drive the filter to move upward.
  • the filter moves downward under the action of its own gravity.
  • the filter is filtered and the bottom is swayed, the sludge adsorbed on the filter net is dropped; the bottom of the filter container has a funnel structure, and the bottom of the filter container is also set.
  • the filter can be cleaned without stopping the pump, saving labor and improving work efficiency.
  • the technical solution proposed by the present invention is a filtering device for a water pump inlet inverted filter of a waste incineration power plant, comprising a filter container and a filter net built in the filter container, wherein the filter container has a barrel structure.
  • the filter container has a water inlet and a water outlet.
  • the filter container has a barrel opening.
  • the filter container is also provided with a cover plate. The cover plate is fixed by bolts on the barrel of the filter container, and the cover plate is provided with pressure relief.
  • the valve is further provided with a support ring on the inner barrel wall of the filter container;
  • the filter net has a barrel structure, and a mouth ring is arranged at the barrel mouth of the filter net, and the filter net is fixed on the support ring through the mouth ring
  • the water flow enters the water inlet of the filter in turn, enters the filter net from the barrel mouth of the filter net, and then flows from the barrel wall of the filter net to the water outlet to achieve the filtering effect;
  • the water inlet of the filter container is disposed on the lower side, and the water outlet is disposed on the upper side, the bottom of the filter net is upward and the bottom of the barrel is inverted, and the support ring is disposed on the lower side.
  • the positioning ring is sleeved on the outer side of the filter barrel wall, and the filter net is fixed by the support ring and can be swayed up and down, and the positioning ring plays a positioning role when filtering the net and the bottom swaying;
  • a ferromagnetic body is further disposed at the bottom of the filter net, and an electromagnet is further disposed on the cover plate.
  • the electromagnet When the electromagnet is energized, the ferromagnetic body is attracted to drive the filter to move upward, and when the electromagnet is powered off
  • the filter is swayed by the action of its own gravity, the sludge adsorbed on the filter net is dropped when the filter is swayed under the filter;
  • the bottom of the filter container has a funnel structure, and the bottom of the filter container is further provided with a drain pipe.
  • the drain pipe is provided with a valve, and the sludge dropped from the filter net is discharged through the drain pipe.
  • the present invention provides a filtering device for a water pump inlet inverted filter screen of a waste incineration power plant, wherein a water inlet of the filter container is disposed on a lower side, and a water outlet is disposed on an upper side, and the filter screen is in an inverted state.
  • a ferromagnetic body is further disposed at the bottom of the filter net, and an electromagnet is further disposed on the filter container cover, and the electromagnet controls the lowering of the filter net to achieve cleaning; and the funnel is at the bottom of the filter container.
  • a drain pipe is also arranged at the bottom, and a valve is arranged on the drain pipe, and the sludge dropped from the filter net can be discharged through the drain pipe.
  • the filter can be cleaned without stopping the pump, saving labor and improving work efficiency.
  • 1 to 6 are schematic structural views of an embodiment of the prior art.
  • FIG. 7-11 are schematic views showing the structure of an embodiment of the present invention.
  • FIG. 8 , FIG. 9 , FIG. 10 , and FIG. 11 are schematic diagrams showing the structure of the filter network and the lower jaw.
  • the filter device of the inverted inlet filter of the water pump inlet of the waste incineration power plant comprises a filter container 1A and a filter net 2 built in the filter container 1A.
  • the filter container 1A has a barrel structure, and the filter container 1A is shown in the figure.
  • the water inlet 1A1 and the water outlet 1A2, the filter container 1A barrel mouth 1.1 is upward, and the filter container 1A is also provided with a cover plate 1B at the barrel mouth, and the cover plate 1B is fixed by bolts on the barrel mouth of the filter container 1A, and the cover plate 1B is disposed.
  • a pressure relief valve 1B1 There is a pressure relief valve 1B1, and a support ring 1C1 is further disposed on the inner barrel wall of the filter container 1A (the support ring 1C1 can be fixed by welding); the filter net 2 has a barrel structure, and the barrel 2A of the filter net 2 is disposed.
  • the filter 2 With the mouth ring 2C, the filter 2 is fixed on the support ring 1C1 through the mouth ring 2C; the water flow is sequentially entered by the water inlet 1A1 of the filter, and then enters the filter net from the barrel opening 2A of the filter net, and then from the barrel wall of the filter net. 2D flows to the water outlet 1A2 to achieve filtration.
  • the filter screen is prone to fouling, and the filter must be cleaned after the pump is stopped and the filter container cover is removed. If the unblocking is not timely, the condensate pump may not be inhaled in a serious situation, and the cavitation may occur, which seriously affects the safe operation of the unit.
  • FIG. 7-11 are schematic views showing the structure of an embodiment of the present invention.
  • Figure 8, Figure 9, Figure 10, Figure 11 is the filter network, the next Schematic diagram of the structure when it is shaken.
  • the figure shows that, unlike the prior art, in this example, the water inlet 1A1 of the filter container is disposed on the lower side, and the water outlet 1A2 is disposed on the upper side, the filter net 2 is in an inverted state, and the filter net bottom 2B faces upward.
  • the barrel mouth 2A is facing downward, the support ring 1C1 is disposed on the lower side, and the positioning ring 1C2 is further disposed (the positioning ring 1C2 can be fixed by welding), the positioning ring 1C2 is sleeved outside the filter barrel wall 2D, and the filter net 2 is supported by The ring 1C1 is fixed and can be moved up and down. When the filter 2 is up and down, the positioning ring 1C2 plays a positioning role.
  • a ferromagnetic body 3B is further disposed at the bottom 2B of the filter net, and an electromagnet 3A is further disposed on the cover plate 1B.
  • the electromagnet 3A When the electromagnet 3A is energized, the ferromagnetic body 3B is attracted to drive the filter 2 to move upward, when electromagnetic When the iron is powered off, the filter moves downward under the action of its own gravity, and the sludge adsorbed on the filter net is dropped when the net is filtered and the bottom is shaken.
  • the figure shows that the bottom of the filter container 1A has a funnel structure, and the bottom of the filter container is further provided with a drain pipe 4, and the drain pipe 4 is provided with a valve 4A, and the sludge dropped from the filter net 2 can be discharged through the drain pipe 4.
  • the figure shows that in this case, the filter can be cleaned without stopping the pump, saving manpower and improving work efficiency.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

一种垃圾焚烧发电厂水泵入口倒置滤网的过滤装置，包括过滤容器（1A）和内置在过滤容器（1A）里面的过滤网（2），过滤容器（1A）和过滤网（2）呈桶状结构，过滤容器（1A）的进水口（1A1）设置在下侧、而出水口（1A2）设置在上侧，所述过滤网（2）桶底（2B）朝上而桶口（2A）朝下呈倒置状态，在过滤网（2）桶底（2B）处还设置有铁磁性体（3B），在过滤容器（1A）的盖板（1B）上还设置有电磁铁（3A），当电磁铁（3A）通电时，铁磁性体（3B）被吸引带动过滤网（2）向上移动，当电磁铁（3A）断电时，过滤网（2）在自身重力的作用向下移动，过滤网（2）上、下窜动时使吸附在过滤网（2）上的污泥掉落；过滤容器（1A）的底部呈漏斗结构，过滤容器（1A）的底部还设置有排污管（4），排污管（4）上设置有阀门（4A），从过滤网（2）上掉落的污泥经排污管（4）排出。不需要停泵即可对过滤网（2）进行清洁，既节省人力，又提高工作效率。

Description

一种垃圾焚烧发电厂水泵入口倒置滤网的过滤装置 技术领域
本发明涉及一种水泵入口过滤装置，尤其涉及一种垃圾焚烧发电厂水泵入口倒置滤网的过滤装置。
背景技术
垃圾焚烧发电厂锅炉给水系统主要由给水泵、管道及阀门组成，其给水主要是由汽轮机凝结水和化学补给水组成，其中凝结水的水量占给水总量的90％-95％，凝结水中的杂质主要分为微量的溶解盐物质和硅化合物以及少量悬浮态及机械杂物等。
现有的垃圾焚烧发电厂凝结水泵进口一般采用横向管道过滤网，检修周期内(一般1年左右)，过滤网容易出现污堵，必须先停泵、拆开过滤容器盖板之后才能清洁过滤网。若清堵不及时，严重时可能导致凝结水泵吸入量不足，进而出现汽蚀情况，严重影响机组安全运行。
发明内容
为了解决以上问题，本发明提出一种垃圾焚烧发电厂水泵入口倒置滤网的过滤装置。包括过滤容器和内置在过滤容器里面的过滤网，过滤容器和过滤网呈桶状结构，过滤容器的进水口设置在下侧、而出水口设置在上侧，所述过滤网桶底朝上而桶口朝下呈倒置状态，在过滤网桶底处还设置有铁磁性体，在过滤容器的盖板上还设置有电磁铁，当电磁铁通电时，铁磁性体被吸引带动过滤网向上移动，当电磁铁断电时，过滤网在自身重力的作用向下移动，过滤网上、下窜动时使吸附在过滤网上的污泥掉落；过滤容器的底部呈漏斗结构，过滤容器的底部还设置有排污管，排污管上设置有阀门，从过滤网上掉落的污泥经排污管排出。由于不需要停泵即可以对过滤网进行清洁，既节省人力，又提高工作效率。
本发明解决技术问题所提出的技术方案是，一种垃圾焚烧发电厂水泵入口倒置滤网的过滤装置，包括过滤容器和内置在过滤容器里面的过滤网，所述过滤容器呈桶状结构，所述过滤容器上具有进水口和出水口，所述过滤容器桶口向上，过滤容器桶口处还设置有盖板，盖板通过螺栓安装固定在过滤容器的桶口上，盖板上设置有卸压阀，在过滤容器的内桶壁还设置有承托环；所述过滤网呈桶状结构，过滤网的桶口处设置有口环，过滤网通过所述口环固定在所述承托环上；水流依次由过滤器的进水口进入、再从过滤网的桶口进入过滤网、然后从过滤网的桶壁流向出水口从而实现过滤作用；
其特征是，所述过滤容器的进水口设置在下侧、而出水口设置在上侧，所述过滤网桶底朝上而桶口朝下呈倒置状态，所述承托环设置在下侧，还设置定位环，所述定位环套接在过滤网桶壁外侧，所述过滤网由承托环承托固定并可以上下窜动，过滤网上、下窜动时定位环发挥定位作用；
在过滤网桶底处还设置有铁磁性体，在所述盖板上还设置有电磁铁，当电磁铁通电时，所述铁磁性体被吸引带动过滤网向上窜动，当电磁铁断电时，所述过滤网在自身重力的作用向下窜动，过滤网上下窜动时使吸附在过滤网上的污泥掉落；
所述过滤容器的底部呈漏斗结构，所述过滤容器的底部还设置有排污管，所述排污管上设置有阀门，从过滤网上掉落的污泥经排污管排出。
本发明的有益效果：本发明提出一种垃圾焚烧发电厂水泵入口倒置滤网的过滤装置，所述过滤容器的进水口设置在下侧、而出水口设置在上侧，所述过滤网呈倒置状态，在过滤网桶底处还设置有铁磁性体，在过滤容器盖板上还设置有电磁铁，由电磁铁控制过滤网上下窜动实现清洁作用；并且在所述过滤容器的底部呈漏斗状并在底部还设置有排污管，在排污管上设置有阀门，从过滤网上掉落的污泥可以经排污管排出。由于不需要停泵即可以对过滤网进行清洁，既节省人力，又提高工作效率。
附图说明：
图1-图6为现有技术一个实施例的结构示意图。
图7-图11为本发明提出的一个实施例的结构示意图。其中图8、图9和图10、图11为过滤网上、下窜动时的结构示意图。
图中，
1A过滤容器，
1.1过滤容器桶口，1A1进水口，1A2入水口；
1B过滤容器盖板，1B1卸压阀；
1C1承托环，1C2定位环；
2.过滤网；
2A过滤网桶口，2B桶底，2C口环，2D桶壁；
3A电磁铁，3B铁磁性体；
4排污管，4A排污阀。
具体实施方式
图1-图6为现有技术一个实施例的结构示意图。图中显示，现有技术中，垃圾焚烧发电厂水泵入口倒置滤网的过滤装置，包括过滤容器1A和内置在过滤容器1A里面的过滤网2，过滤容器1A呈桶状结构，过滤容器1A上具有进水口1A1和出水口1A2，过滤容器1A桶口1.1向上，过滤容器1A桶口处还设置有盖板1B，盖板1B通过螺栓安装固定在过滤容器1A的桶口上，盖板1B上设置有卸压阀1B1，在过滤容器1A的内桶壁还设置有承托环1C1(承托环1C1可以采用焊接的方式固定)；过滤网2呈桶状结构，过滤网2的桶口2A处设置有口环2C，过滤网2通过口环2C固定在承托环1C1上；水流依次由过滤器的进水口1A1进入、再从过滤网的桶口2A进入过滤网、然后从过滤网的桶壁2D流向出水口1A2从而实现过滤作用。
问题是，现有技术中，过滤网容易出现污堵，必须先停泵、拆开过滤容器盖板之后才能清洁过滤网。若清堵不及时，严重时可能导致凝结水泵吸入量不足，进而出现汽蚀情况，严重影响机组安全运行。
图7-图11为本发明提出的一个实施例的结构示意图。其中图8、图9和图10、图11为过滤网上、下 窜动时的结构示意图。图中显示，与现有技术不同的是，本例中，过滤容器的进水口1A1设置在下侧、而出水口1A2设置在上侧，过滤网2呈倒置状态，过滤网桶底2B朝上而桶口2A朝下，承托环1C1设置在下侧，还设置定位环1C2(定位环1C2可以采用焊接的方式固定)，定位环1C2套接在过滤网桶壁2D外侧，过滤网2由承托环1C1承托固定并可以上下窜动，过滤网2上、下窜动时定位环1C2发挥定位作用。
在过滤网桶底2B处还设置有铁磁性体3B，在盖板1B上还设置有电磁铁3A，当电磁铁3A通电时，铁磁性体3B被吸引带动过滤网2向上窜动，当电磁铁断电时，过滤网在自身重力的作用向下移动，过滤网上、下窜动时使吸附在过滤网上的污泥掉落。
图中显示，过滤容器1A的底部呈漏斗结构，过滤容器的底部还设置有排污管4，排污管4上设置有阀门4A，从过滤网2上掉落的污泥可以经排污管4排出。
图中显示，本例中，由于不需要停泵即可对过滤网进行清洁，既节省人力，又提高工作效率。

Claims (1)

  1. 一种垃圾焚烧发电厂水泵入口倒置滤网的过滤装置，包括过滤容器和内置在过滤容器里面的过滤网，所述过滤容器呈桶状结构，所述过滤容器上具有进水口和出水口，所述过滤容器桶口向上，过滤容器桶口处还设置有盖板，盖板通过螺栓安装固定在过滤容器的桶口上，盖板上设置有卸压阀，在过滤容器的内桶壁还设置有承托环；所述过滤网呈桶状结构，过滤网的桶口处设置有口环，过滤网通过所述口环固定在所述承托环上；水流依次由过滤器的进水口进入、再从过滤网的桶口进入过滤网、然后从过滤网的桶壁流向出水口从而实现过滤作用；
    其特征是，所述过滤容器的进水口设置在下侧、而出水口设置在上侧，所述过滤网桶底朝上而桶口朝下呈倒置状态，所述承托环设置在下侧，还设置定位环，所述定位环套接在过滤网桶壁外侧，所述过滤网由承托环承托固定并可以上下窜动，过滤网上、下窜动时定位环发挥定位作用；
    在过滤网桶底处还设置有铁磁性体，在所述盖板上还设置有电磁铁，当电磁铁通电时，所述铁磁性体被吸引带动过滤网向上窜动，当电磁铁断电时，所述过滤网在自身重力的作用向下窜动，过滤网上下窜动时使吸附在过滤网上的污泥掉落；
    所述过滤容器的底部呈漏斗结构，所述过滤容器的底部还设置有排污管，所述排污管上设置有阀门，从过滤网上掉落的污泥经排污管排出。
PCT/CN2017/091917 2017-07-06 2017-07-06 一种垃圾焚烧发电厂水泵入口倒置滤网的过滤装置 WO2019006718A1 (zh)

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