CN105841138A - Efficient rotary film deaerator - Google Patents
Efficient rotary film deaerator Download PDFInfo
- Publication number
- CN105841138A CN105841138A CN201610386043.7A CN201610386043A CN105841138A CN 105841138 A CN105841138 A CN 105841138A CN 201610386043 A CN201610386043 A CN 201610386043A CN 105841138 A CN105841138 A CN 105841138A
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- China
- Prior art keywords
- steam
- rotary film
- layer
- rotation
- oxygen
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
- F22D1/50—Feed-water heaters, i.e. economisers or like preheaters incorporating thermal de-aeration of feed-water
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physical Water Treatments (AREA)
- Degasification And Air Bubble Elimination (AREA)
Abstract
The invention discloses an efficient rotary film deaerator which comprises a vertical deaerating tower, a rotary film device, a buffering device and a steam inlet pipe. The rotary film device comprises a rotary film water tank, a plurality of rotary film pipes and a plurality of overflow exhaust pipes. A plurality of inclined water inlets are formed in a part, positioned in the rotary film water tank, of each rotary film pipe. The buffering device comprises a plurality of shunt layers and a gas-liquid mixing structure. Each shunt layer comprises a plurality of shunt components of which the sections are inverted V-shaped. The gas-liquid mixing structure comprises gas-liquid mixing nets. The steam inlet pipe is arranged below the buffering device. A steam nozzle is arranged at the air outlet end of the steam inlet pipe. A tower body of the vertical deaerating tower comprises an outer thermal insulation layer and an inner steam guiding layer. A plurality of steam baffles are arranged on the inner steam guiding layer from top to bottom. A plurality of left ventholes and a plurality of right ventholes are respectively formed in each of two adjacent steam baffles. Return tubes are arranged in the position, above the rotary film device, of the inner steam guiding layer. The upper ends of the return tubes are connected with the inner steam guiding layer. The lower ends of the return tubes are connected with the rotary film water tank. Through the adoption of the efficient rotary film deaerator, steam can be fully utilized to feed water to a boiler to deaerate, so that the deaerating efficiency is improved.
Description
Technical field
The present invention relates to a kind of boiler feedwater processing equipment, a kind of can carry out the effective film rotating oxygen remover of deoxidation treatment by waste water higher to oxygen content.
Background technology
In boiler feedwater processes technical process, deoxygenation is a most crucial link.Oxygen is the main corrosion material of water supply system and boiler, oxygen in feedwater should rapidly be removing, otherwise it can corrode water supply system and the parts of boiler, corrosion product ferrum oxide can enter in pot, deposit or be attached on boiler tube wall and heating surface, the ferrum dirt forming indissoluble and conduct heat bad, and corrosion can cause inner-walls of duct appearance point to cheat, and resistance coefficient increases.When corrosive pipeline is serious, pipeline explosion accident even can occur.National regulation evaporation capacity is more than or equal to steam boiler and all required deoxygenation of the water temperature hot-water boiler more than or equal to 95 DEG C of 2 tphs.
Existing oxygen-eliminating device is the mode of thermal de-aeration mostly, when being exactly to utilize steam that feedwater is heated to the saturation temperature under corresponding pressure, vapor partial pressure power will be close to total pressure on the water surface, the partial pressure of various gas soluble in water is close to zero, therefore, water does not the most have the ability of dissolved gas, and gas soluble in water is just precipitated, thus removes the oxygen in water and other gases.
Chinese utility model patent prospectus notification number 2876558 discloses a kind of membrane deaerator, and it includes deoxygenation head and forms with the water tank two large divisions being connected bottom deoxygenation head, and the top of deoxygenation head is provided with an air vent；Middle part is provided with hydroecium and water inlet pipe, outlet pipe, trickle bamboo comb, installed above at supporting plate has packing layer, bottom is provided with steam pipe, it is respectively arranged on the left side and the right side outlet pipe and water inlet pipe at hydroecium, bottom steam indoor location at deoxygenation head has steam pipe and steam jet, this device has certain deaerating effect, but the most sufficiently utilizes steam to boiler supply water deaerating, and oxygen removal efficiency is the highest.
Summary of the invention
The technical problem to be solved in the present invention is for the deficiencies in the prior art, proposes a kind of effective film rotating oxygen remover, and this membrane deaerator can utilize steam to boiler supply water deaerating fully, improves oxygen removal efficiency.
The technical problem to be solved in the present invention is achieved through the following technical solutions.The present invention is a kind of effective film rotating oxygen remover, including vertical oxygen-removing tower, is respectively equipped with steam drain and outlet in the upper and lower of oxygen-removing tower, and its feature is, also includes:
It is located at the rotation film device below described steam drain, it is provided with the rotation film water case of water inlet pipe and some rotation membrane pipes passing vertically through rotation film water case and overflow gland steam exhauster including side, the upper/lower terminal conducting of overflow gland steam exhauster, rotation membrane pipe is positioned at the part of rotation film water case and is provided with some water inlet inclined holes；
It is located between described rotation film device and outlet and is provided with buffer unit, described buffer unit include some shunting layer and be located at below shunting layer gas-liquid mixed structure, described shunting layer includes the by-passing parts that some cross sections are inverted V-shaped, the by-passing parts interval of adjacent shunting layer is arranged, and described vapour-liquid mixed structure includes vapour-liquid hybrid network；
Being located at the steam inlet duct below described buffer unit, the outlet side of described steam inlet duct is provided with steam jet；
The tower body of described vertical oxygen-removing tower includes heat insulating outer shield and leads vapour internal layer, described vapour internal layer of leading is provided with some steam baffles from top to bottom, adjacent steam baffle is respectively equipped with some left passages and right passage, described vapour internal layer of leading is positioned at described rotation film device top position and is provided with return tube, the upper end of described return tube is connected with described vapour internal layer of leading, and the lower end of described return tube is connected with described rotation film water case.
In one effective film rotating oxygen remover technical scheme of the present invention, further preferred technical scheme feature is:
Described heat insulating outer shield is hollow heat insulation layer.
In one effective film rotating oxygen remover technical scheme of the present invention, further preferred technical scheme feature is:
Some steam grooves it are provided with vertically on the inwall of described rotation film water case.
Compared with prior art, the present invention has the following technical effect that:
1, by the tower body of vertical oxygen-removing tower being included heat insulating outer shield and leading vapour internal layer, and it is provided with some steam baffles from top to bottom leading vapour internal layer, unnecessary steam is made slowly to increase by leading vapour internal layer, during rising, vertical oxygen-removing tower heats, in making oxygen-removing tower, temperature raises further, has and utilizes the oxygen evolution being dissolved in water；Then it is back to the steam leading vapour internal layer revolve film water case by return tube, the pressure and temperature in rotation film water case can be increased, owing to being dissolved in water gas under the highest pressure and under the highest water temperature, dissolubility is the lowest, so can improve the efficiency of deoxygenation further；
2, by arranging buffer unit, making current be layered in shunting layer, again mix with water vapour, flow in vapour-liquid mixed structure, buffer unit increases the area of water and steam, makes heat exchange more abundant；
3, by axially disposed some steam grooves on the inwall of rotation film water case, can increase the volume in rotation film water case, can import more steam, make the temperature in rotation film water case higher, deaerating effect is more preferable.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of the rotation film water case in Fig. 1；
Fig. 3 is the structural representation of the part A in Fig. 1；
Fig. 4 is the structural representation of the steam baffle in Fig. 1.
Detailed description of the invention
Referring to the drawings, the concrete technical scheme of the present invention is further described, in order to those skilled in the art is further understood that the present invention, and does not constitute the restriction of its right.
Embodiment 1, with reference to Fig. 1-4, a kind of effective film rotating oxygen remover, including vertical oxygen-removing tower 1, steam drain 10 and outlet 8 it is respectively equipped with in the upper and lower of oxygen-removing tower, also include: be located at the rotation film device 9 below described steam drain 10, it is provided with the rotation film water case 90 of water inlet pipe 94 and some rotation membrane pipes 91 passing vertically through rotation film water case 90 and overflow gland steam exhauster 93 including side, the upper/lower terminal conducting of overflow gland steam exhauster 93, rotation membrane pipe 91 is positioned at the part of rotation film water case 90 and is provided with some water inlet inclined holes 92；It is located between described rotation film device 9 and outlet and is provided with buffer unit, described buffer unit include some shunting layer 3 and be located at below shunting layer 3 gas-liquid mixed structure, the quantity of fluid layer can be 3 layers, 4 layers, 5 layers or more layers, described shunting layer 3 includes the by-passing parts that some cross sections are inverted V-shaped, the by-passing parts interval of adjacent shunting layer 3 is arranged, described vapour-liquid mixed structure includes that vapour-liquid hybrid network 5, shunting layer and gas-liquid mixed structure are arranged in steam discharge cylinder 1 by support ring 6；Being located at the steam inlet duct 7 below described buffer unit, the outlet side of described steam inlet duct 7 is provided with steam jet 71；The tower body of described vertical oxygen-removing tower 1 includes heat insulating outer shield 3 and leads vapour internal layer 2, described vapour internal layer 2 of leading is provided with some steam baffles 20 from top to bottom, adjacent upper and lower steam baffle 20 is respectively equipped with some steam baffles 24 and right passage 25, described vapour internal layer 2 of leading is positioned at described rotation film device 9 top position and is provided with return tube 22, the upper end of described return tube 22 is connected with described vapour internal layer 2 of leading, and the lower end of described return tube 22 is connected with described rotation film water case 90.
Embodiment 2, in the effective film rotating oxygen remover described in embodiment 1: described heat insulating outer shield 3 is hollow heat insulation layer, and hollow heat insulation layer can be evacuated, reduces the loss of heat.
Embodiment 3, in the effective film rotating oxygen remover described in embodiment 1 and 2: as it is shown on figure 3, be provided with some steam grooves 96 vertically on the inwall of described rotation film water case 90.
In the above embodiments, water inlet pipe 94, gap filling heat-barrier material between outlet pipe 8 and oxygen-removing tower, heat-barrier material can be glass fibre or asbestos.
The operation principle of the present invention: by the tower body of vertical oxygen-removing tower being included heat insulating outer shield and leading vapour internal layer, and it is provided with some steam baffles from top to bottom leading vapour internal layer, unnecessary steam is made slowly to increase by leading vapour internal layer, during rising, vertical oxygen-removing tower heats, in making oxygen-removing tower, temperature raises further, has and utilizes the oxygen evolution being dissolved in water；Then it is back to the steam leading vapour internal layer revolve film water case by return tube, the pressure and temperature in rotation film water case can be increased, owing to being dissolved in water gas under the highest pressure and under the highest water temperature, dissolubility is the lowest, so can improve the efficiency of deoxygenation further；
By arranging buffer unit, making current be layered in shunting layer, again mix with water vapour, flow in vapour-liquid mixed structure, buffer unit increases the area of water and steam, makes heat exchange more abundant；By axially disposed some steam grooves on the inwall of rotation film water case, can increase the volume in rotation film water case, can import more steam, make the temperature in rotation film water case higher, deaerating effect is more preferable.
Claims (3)
1. an effective film rotating oxygen remover, including vertical oxygen-removing tower, is respectively equipped with steam drain and outlet in the upper and lower of oxygen-removing tower, it is characterised in that also include:
It is located at the rotation film device below described steam drain, it is provided with the rotation film water case of water inlet pipe and some rotation membrane pipes passing vertically through rotation film water case and overflow gland steam exhauster including side, the upper/lower terminal conducting of overflow gland steam exhauster, rotation membrane pipe is positioned at the part of rotation film water case and is provided with some water inlet inclined holes；
It is located between described rotation film device and outlet and is provided with buffer unit, described buffer unit include some shunting layer and be located at below shunting layer gas-liquid mixed structure, described shunting layer includes the by-passing parts that some cross sections are inverted V-shaped, the by-passing parts interval of adjacent shunting layer is arranged, and described vapour-liquid mixed structure includes vapour-liquid hybrid network；
Being located at the steam inlet duct below described buffer unit, the outlet side of described steam inlet duct is provided with steam jet；
The tower body of described vertical oxygen-removing tower includes heat insulating outer shield and leads vapour internal layer, described vapour internal layer of leading is provided with some steam baffles from top to bottom, adjacent steam baffle is respectively equipped with some left passages and right passage, described vapour internal layer of leading is positioned at described rotation film device top position and is provided with return tube, the upper end of described return tube is connected with described vapour internal layer of leading, and the lower end of described return tube is connected with described rotation film water case.
Effective film rotating oxygen remover the most according to claim 1, it is characterised in that: described heat insulating outer shield is hollow heat insulation layer.
Effective film rotating oxygen remover the most according to claim 1 and 2, it is characterised in that: it is provided with some steam grooves vertically on the inwall of described rotation film water case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610386043.7A CN105841138B (en) | 2016-06-03 | 2016-06-03 | A kind of effective film rotating oxygen remover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610386043.7A CN105841138B (en) | 2016-06-03 | 2016-06-03 | A kind of effective film rotating oxygen remover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105841138A true CN105841138A (en) | 2016-08-10 |
| CN105841138B CN105841138B (en) | 2017-11-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610386043.7A Active CN105841138B (en) | 2016-06-03 | 2016-06-03 | A kind of effective film rotating oxygen remover |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112076500A (en) * | 2020-09-03 | 2020-12-15 | 无锡市申京化工设备有限公司 | Deep atomization deoxidization double-cylinder type film spinner and deaerator with same |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3737378A (en) * | 1969-02-01 | 1973-06-05 | Kao Corp | Deodorizing method by film and steam distillation |
| JPH05141612A (en) * | 1991-11-21 | 1993-06-08 | Fuji Electric Co Ltd | Deaerator |
| CN2876558Y (en) * | 2005-11-15 | 2007-03-07 | 何凤 | Rotary disphragm deaerator |
| CN202107549U (en) * | 2011-05-25 | 2012-01-11 | 何乃昌 | Spinning shoot film deaerator |
| CN105444149A (en) * | 2014-09-25 | 2016-03-30 | 黑龙江宏宇电站设备有限公司 | Novel rotary film type deaerating device and deaerating method special for power station |
| CN205664353U (en) * | 2016-06-03 | 2016-10-26 | 连云港正航电力节能技术有限公司 | Rotary film deaerator |
-
2016
- 2016-06-03 CN CN201610386043.7A patent/CN105841138B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3737378A (en) * | 1969-02-01 | 1973-06-05 | Kao Corp | Deodorizing method by film and steam distillation |
| JPH05141612A (en) * | 1991-11-21 | 1993-06-08 | Fuji Electric Co Ltd | Deaerator |
| CN2876558Y (en) * | 2005-11-15 | 2007-03-07 | 何凤 | Rotary disphragm deaerator |
| CN202107549U (en) * | 2011-05-25 | 2012-01-11 | 何乃昌 | Spinning shoot film deaerator |
| CN105444149A (en) * | 2014-09-25 | 2016-03-30 | 黑龙江宏宇电站设备有限公司 | Novel rotary film type deaerating device and deaerating method special for power station |
| CN205664353U (en) * | 2016-06-03 | 2016-10-26 | 连云港正航电力节能技术有限公司 | Rotary film deaerator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112076500A (en) * | 2020-09-03 | 2020-12-15 | 无锡市申京化工设备有限公司 | Deep atomization deoxidization double-cylinder type film spinner and deaerator with same |
| CN112076500B (en) * | 2020-09-03 | 2022-05-17 | 无锡市申京化工设备有限公司 | Deep atomization deoxidization double-cylinder type film spinner and deaerator with same |
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| Publication number | Publication date |
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| CN105841138B (en) | 2017-11-07 |
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