CN213395272U - Energy-saving deaerating device - Google Patents

Energy-saving deaerating device Download PDF

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Publication number
CN213395272U
CN213395272U CN202021968830.0U CN202021968830U CN213395272U CN 213395272 U CN213395272 U CN 213395272U CN 202021968830 U CN202021968830 U CN 202021968830U CN 213395272 U CN213395272 U CN 213395272U
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China
Prior art keywords
steam
economizer
pipeline
inlet
oil furnace
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CN202021968830.0U
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Chinese (zh)
Inventor
魏景峰
于文冰
佟文学
刘阿丽
吴秀坤
李顺明
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Liaoning Shengde Huaxing Chemical Co ltd
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Liaoning Shengde Huaxing Chemical Co ltd
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Priority to CN202021968830.0U priority Critical patent/CN213395272U/en
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Abstract

The utility model discloses an energy-saving deaerating device, which comprises an oil furnace economizer, a deaerating tank, a steam furnace economizer and a steam pocket, wherein soft water enters through a water inlet of the oil furnace economizer, a water outlet of the oil furnace economizer is connected with the water inlet of the deaerating tank through a pipeline, and a smoke inlet of the oil furnace economizer is communicated with a smoke outlet of the oil furnace through a flue; the steam inlet is arranged on the deaerating tank, the water outlet of the deaerating tank is connected to the inlet of the conveying pump through a pipeline, the outlet of the conveying pump is connected to the water inlet of the steam boiler economizer through a pipeline, the water outlet of the steam boiler economizer is connected to the water inlet at the upper part of the steam drum through a pipeline, the lower part of the steam drum is connected with the steam boiler through a pipeline, and the smoke outlet of the steam boiler is connected with the smoke inlet of the steam boiler economizer through a flue. The utility model discloses with the flue gas rational utilization that produces in oil furnace and the steam stove, when the soft water passes through oil furnace economizer and steam stove economizer, utilize the flue gas to heat, practiced thrift the energy when having reduced air pollution.

Description

Energy-saving deaerating device
Technical Field
The utility model relates to a boiler deaerating plant technical field that is relevant, concretely relates to energy-conserving deaerating plant.
Background
The corrosion of boiler thermal equipment seriously jeopardizes the safe and economic operation of the boiler thermal equipment, and the existence of dissolved oxygen in water is an important reason for the occurrence of the corrosion. Corrosion hazards caused by oxygen are significant, including: corrosion products can be deposited or attached on the boiler pipe wall, the heating surface and a heat supply network system, so that heat transfer is deteriorated, and heat transfer loss of the boiler is increased; the temperature of the metal wall is raised, the metal wall is overheated, blebs and explodes, and the pipe explosion accident happens; the service life of the boiler is shortened, and the maintenance cost of equipment is increased; the thermal efficiency is reduced, so that the pollution of combustion to the atmosphere is increased; the frictional resistance of water flow in the heating surface pipe is increased.
In the prior art, the most effective method for preventing the boiler from oxygen corrosion is to strengthen the deoxidation of boiler feed water so that the oxygen content in the feed water meets the requirement of water quality standard. The principle of the thermal deoxygenation is that water is heated to saturation temperature (generally reaching boiling point) under corresponding pressure, partial pressure of steam is close to full pressure on water surface, partial pressure of oxygen dissolved in water is close to zero, oxygen is precipitated, and oxygen generated on water surface is removed, so that oxygen content of feed water is ensured to meet the requirement of water quality standard. The technology has the disadvantage that a large amount of steam is needed for heating, which causes a large amount of energy consumption. Meanwhile, the flue gas of the heat-conducting oil furnace with higher temperature is directly discharged, so that a large amount of heat is lost, and the energy is wasted.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides an energy-saving deoxidizing device which can save energy and ensure the deoxidizing efficiency.
In order to achieve the above object, the utility model adopts the following technical scheme: the device comprises an oil furnace economizer, a deaerating tank, a steam furnace economizer and a steam pocket, wherein soft water enters through a water inlet of the oil furnace economizer, a water outlet of the oil furnace economizer is connected with a water inlet of the deaerating tank through a pipeline, and a smoke inlet of the oil furnace economizer is communicated with a smoke outlet of the oil furnace through a flue; the steam inlet is arranged on the deaerating tank, the water outlet of the deaerating tank is connected to the inlet of the conveying pump through a pipeline, the outlet of the conveying pump is connected to the water inlet of the steam boiler economizer through a pipeline, the water outlet of the steam boiler economizer is connected to the water inlet at the upper part of the steam drum through a pipeline, the lower part of the steam drum is respectively provided with a liquid inlet and a liquid outlet, the liquid inlet and the liquid outlet are connected with the steam boiler through pipelines, and the smoke outlet of the steam boiler is connected with the smoke inlet of the steam.
A first pneumatic valve group is arranged on a water inlet pipeline of the oil furnace economizer, and a first flow meter group is arranged on a pipeline connected with the deaerating tank.
And a second pneumatic valve set is arranged on a pipeline for connecting the steam furnace economizer with the deaerating tank, and a second flow meter valve set is arranged on a pipeline for connecting the steam drum.
The first and second flow meter valve sets and the first and second pneumatic valve sets are connected to a PLC controller.
Use the utility model discloses a beneficial effect is: the flue gas generated in the oil furnace and the steam furnace is reasonably utilized, and the flue gas is utilized for heating when the soft water passes through the oil furnace economizer and the steam furnace economizer, so that the air pollution is reduced, and the energy is saved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
The reference numerals include:
1 is the oil furnace, 2 is the oil furnace economizer, 3 is first pneumatic valve valves, 4 is first flowmeter valves, 5 is the delivery pump, 6 is second pneumatic valve valves, 7 is the oxygen-eliminating tank, 8 is the steam boiler economizer, 9 is second flowmeter valves, 10 is the steam pocket, 11 is the steam boiler.
Detailed Description
In order to make the purpose, technical solution and advantages of the present technical solution more clear, the present technical solution is further described in detail below with reference to specific embodiments. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present teachings.
The utility model discloses an energy-saving deoxidizing device which can save energy and ensure deoxidizing efficiency,
the device comprises an oil furnace economizer 2, a deaerating tank 7, a steam furnace economizer 8 and a steam pocket 10, wherein soft water enters through a water inlet of the oil furnace economizer 2, a water outlet of the oil furnace economizer 2 is connected with a water inlet of the deaerating tank 7 through a pipeline, and a smoke inlet of the oil furnace economizer 2 is communicated with a smoke outlet of an oil furnace 1 through a flue; the steam inlet is arranged on the deaerating tank 7, the water outlet of the deaerating tank 7 is connected to the inlet of the conveying pump 5 through a pipeline, the outlet of the conveying pump 5 is connected to the water inlet of the steam boiler economizer 8 through a pipeline, the water outlet of the steam boiler economizer 8 is connected to the water inlet at the upper part of the steam drum 10 through a pipeline, the lower part of the steam drum 10 is respectively provided with a liquid inlet and a liquid outlet, the liquid inlet and the liquid outlet are connected with the steam boiler 11 through pipelines, and the smoke outlet of the steam boiler 11 is connected with the smoke inlet of the steam boiler economizer.
And a first pneumatic valve group 3 is arranged on a water inlet pipeline of the oil furnace economizer 2, and a first flow meter valve group 4 is arranged on a pipeline connected with a deaerating tank 7.
And a second pneumatic valve set 6 is arranged on a pipeline connecting the steam furnace economizer 8 and the deaerating tank 7, and a second flow meter valve set 9 is arranged on a pipeline connecting the steam drum 10.
The first and second flow meter valve sets 4 and 9 and the first and second pneumatic valve sets 3 and 6 are connected to a PLC controller.
When the device is actually used, firstly, a first pneumatic valve bank and a temperature display instrument for remote monitoring are arranged on a pipeline of soft water before the soft water enters an oil furnace economizer, and a temperature display instrument and a first flow meter bank for remote monitoring are arranged on a pipeline of the soft water flowing out of the oil furnace economizer and entering a deaerating tank; the soft water is heated to about 70 degrees from about 15 degrees, the soft water heated to about 70 degrees is sent into a deaerating tank, then steam is introduced into the deaerating tank to ensure that the soft water reaches the boiling point for deoxidization, the soft water with qualified deoxidization is sent to a steam boiler economizer through a delivery pump, a pressure display instrument is arranged on a water outlet pipeline of the delivery pump, the soft water is conveyed into a steam drum through temperature control under the control of a second pneumatic valve group and a second flow meter group for monitoring and a temperature display instrument at the outlet and inlet of the steam boiler economizer, a steam-water mixture generated from the steam boiler enters the steam drum, the steam-water mixture is subjected to steam-water separation in the steam drum, liquid water flows back into the steam boiler through a steam drum water outlet pipe, and the separated steam in the steam drum is led out from the top of the steam drum.
The foregoing is only a preferred embodiment of the present invention, and many variations can be made in the specific embodiments and applications of the present invention by those skilled in the art without departing from the spirit of the present invention.

Claims (4)

1. The utility model provides an energy-conserving deaerating plant, it includes oil furnace economizer, deoxidization jar, steam stove economizer, steam pocket, its characterized in that: soft water enters through a water inlet of the oil furnace economizer, a water outlet of the oil furnace economizer is connected with a water inlet of the deaerating tank through a pipeline, and a smoke inlet of the oil furnace economizer is communicated with a smoke outlet of the oil furnace through a flue; the steam inlet is arranged on the deaerating tank, the water outlet of the deaerating tank is connected to the inlet of the conveying pump through a pipeline, the outlet of the conveying pump is connected to the water inlet of the steam boiler economizer through a pipeline, the water outlet of the steam boiler economizer is connected to the water inlet at the upper part of the steam drum through a pipeline, the lower part of the steam drum is respectively provided with a liquid inlet and a liquid outlet, the liquid inlet and the liquid outlet are connected with the steam boiler through pipelines, and the smoke outlet of the steam boiler is connected with the smoke inlet of the steam.
2. The energy-saving oxygen removing device according to claim 1, characterized in that: a first pneumatic valve group is arranged on a water inlet pipeline of the oil furnace economizer, and a first flow meter group is arranged on a pipeline connected with the deaerating tank.
3. The energy-saving oxygen removing device according to claim 2, characterized in that: and a second pneumatic valve set is arranged on a pipeline for connecting the steam furnace economizer with the deaerating tank, and a second flow meter valve set is arranged on a pipeline for connecting the steam drum.
4. The energy-saving oxygen removing device according to claim 3, characterized in that: the first and second flow meter valve sets and the first and second pneumatic valve sets are connected to a PLC controller.
CN202021968830.0U 2020-09-10 2020-09-10 Energy-saving deaerating device Active CN213395272U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021968830.0U CN213395272U (en) 2020-09-10 2020-09-10 Energy-saving deaerating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021968830.0U CN213395272U (en) 2020-09-10 2020-09-10 Energy-saving deaerating device

Publications (1)

Publication Number Publication Date
CN213395272U true CN213395272U (en) 2021-06-08

Family

ID=76215850

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202021968830.0U Active CN213395272U (en) 2020-09-10 2020-09-10 Energy-saving deaerating device

Country Status (1)

Country Link
CN (1) CN213395272U (en)

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Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
PE01 Entry into force of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: Energy saving deaeration device

Effective date of registration: 20220929

Granted publication date: 20210608

Pledgee: Shengjing Bank Co.,Ltd. Liaoyang Hongwei Sub branch

Pledgor: Liaoning Shengde Huaxing Chemical Co.,Ltd.

Registration number: Y2022210000155