CN217274083U - Deoxidizing device for boiler water supply - Google Patents
Deoxidizing device for boiler water supply Download PDFInfo
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- CN217274083U CN217274083U CN202220078736.0U CN202220078736U CN217274083U CN 217274083 U CN217274083 U CN 217274083U CN 202220078736 U CN202220078736 U CN 202220078736U CN 217274083 U CN217274083 U CN 217274083U
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Abstract
The utility model relates to a deaerator field, concretely relates to deaerator for boiler feed water, at least including the casing of deaerator, still include: the support frame is detachably connected in the shell; the heating part is detachably connected to the support frame; the steam inlet pipe penetrates through the shell and is communicated with one end of the heating part; the membrane tube, this membrane tube can be dismantled and connect on the support frame, and the membrane tube is located the casing inner wall, and the membrane tube arranges with casing length direction, and membrane tube one end and heating portion other end intercommunication, and the membrane tube other end is the encapsulated situation. The utility model discloses owing to adopted through the heating pipe that coils, effectively solved the problem that the temperature is low under the same pressure in the oxygen-eliminating device, and then realized carrying out the temperature fast through the heating pipe that coils and membrane pipe in to the oxygen-eliminating device water, realized that the oxygen-eliminating device water reheating, boiling make water reach saturation temperature fast.
Description
Technical Field
The utility model relates to a deaerator field, concretely relates to deaerator for boiler feed water.
Background
The rotary film deaerator, the boiler does not take the unit in service, does not have high, low pressure feed water heater, and the operation deaerator heating steam consumption is big, and heating temperature is low, deaerator internal pressure is high, and the deoxidization head discharges a large amount of flash steam, and the dissolved oxygen of feedwater is several hundred to several thousand, and apart from index value 15ug/L phase distance is very far away.
Liquefied water and make-up water firstly enter a water chamber of an inner rotating film device of the deoxygenation head, and are obliquely and spirally sprayed to an inner hole from a small hole of a film tube under a certain water head pressure to form jet flow. Oxygen is separated out, and because oxygen can not be diffused randomly in the inner hole, the oxygen can only be discharged to the atmosphere along with rising steam from the steam exhaust pipe, although the deaerator heats water, the oxygen is separated out, but the specific gravity of the oxygen is larger than that of the heating steam, and part of the oxygen is brought into the water tank by the water flowing downwards, which is also a reason for poor deoxidizing effect. The water supply after coarse deoxidization in the membrane drawing section and the drainage introduced by the drainage pipe are mixed for secondary distribution, fall on a liquid-vapor net under the water supply in a uniform rain-like manner, and then flow into a water tank after deep deoxidization.
The traditional deaerators such as a power plant and the like can make dissolved oxygen reach the standard by using the operation method, but the deaerators are easy to damage due to the fact that a large amount of steam is exhausted from the high-pressure deaerators.
SUMMERY OF THE UTILITY MODEL
The application provides a deaerating plant for boiler feed water, has optimized the high gas solubility of traditional deaerator operation high pressure (15-20 KPa), the low gas solubility of high temperature (102) and 104 ℃ C.), has realized the low gas solubility of low pressure (about 1 KPa) under the qualified circumstances of dissolved oxygen, the low gas solubility's of high temperature (> 99 ℃) operating mode, and simultaneously, the problem of deaerator steam extraction has still been solved, zero release has been realized.
The utility model solves the technical problem that the following technical scheme can be adopted to realize:
a deaerating device for boiler feed water, comprising at least a housing of a deaerator, further comprising:
the support frame is detachably connected in the shell;
the heating part is detachably connected to the support frame;
the steam inlet pipe penetrates through the shell and is communicated with one end of the heating part;
the membrane tube, this membrane tube can be dismantled and connect on the support frame, and the membrane tube is located the casing inner wall, and the membrane tube arranges with casing length direction, and membrane tube one end and heating portion other end intercommunication, and the membrane tube other end is the encapsulated situation.
Further, heating portion is coiled by the heating pipe and is constituted, and the heating pipe height is less than the height of normal liquid level in the casing, heating pipe one end and admission pipe intercommunication, the heating pipe other end and membrane pipe intercommunication, the connection can be dismantled on the support frame to the heating pipe.
Further, the heating pipe is reciprocating type and coils, and the heating pipe arranges with casing length direction, and the heating pipe constitutes the heating surface of rectangle through reciprocating type coiling, and the heating pipe is located between casing center to the casing inner circumferential surface.
Further, the heating pipe is spirally coiled, the coiling direction of the heating pipe is the same as the length direction of the shell, the axis of the spirally coiled heating pipe is coaxial with the shell, and the spirally coiled heating pipe is located between the inner wall surface of the shell and the center of the shell.
Furthermore, the heating tube that spirally coils can be dismantled and be connected with the locating rack, the locating rack can be dismantled with the support frame and be connected.
The utility model has the advantages that: owing to adopted the heating pipe through coiling, effectively solved the slow problem of temperature promotion in the oxygen-eliminating device, and then realized through the heating pipe that coils, made the stroke increase before steam gets into the membrane pipe, had sufficient stroke to guarantee that steam carries out heat replacement through the water in heating pipe and the casing, then carries out temperature raising fast through the water of membrane pipe blowout saturation temperature to the water in the oxygen-eliminating device and realizes water reheating, boiling, makes water reach saturation temperature fast.
As the steam entering the membrane tube is liquefied into water with saturated temperature, the steam pressure on the water surface in the shell is not influenced by the steam of the heating tube, thereby realizing the low-pressure operation working condition at the same water temperature, and the water with saturated temperature sprayed by the membrane tube leads the water in the shell to generate disordered heat exchange, thereby realizing the high-temperature operation working condition at the same pressure.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of an embodiment of the present invention.
In the figure: 1-a shell; 2-a support frame; 3-a steam inlet pipe; 4-membrane tube; 5-heating a tube; 6-a positioning frame.
Detailed Description
Example 1:
referring to fig. 1, which is a schematic structural diagram of embodiment 1 of the present invention, a deaerating device for boiler feed water, at least comprising a casing 1 of a deaerator, further comprising:
the support frame 2, the support frame 2 is connected in the body 1 removably;
a heating part detachably connected to the support frame 2;
a steam inlet pipe 3, wherein the steam inlet pipe 3 penetrates through the shell 1 and is communicated with one end of the heating part;
the membrane tube 4, this membrane tube 4 can dismantle the connection on support frame 2, and membrane tube 4 is located 1 internal face of casing, and membrane tube 4 arranges with 1 length direction of casing, and 4 one ends of membrane tube and the other end intercommunication of heating portion, and the other end of membrane tube 4 is the encapsulated situation.
In actual use: through 3 access steam pipe ways of admission pipe, carry high temperature's steam in to admission pipe 3 through the steam pipe way, then steam passes through admission pipe 3 and at first gets into the heating portion, heating portion heats the water in the casing 1, high temperature steam through constantly entering, by the heating portion heat transfer, make water reheat and boiling, reach the water that is converted into and reach saturation temperature by steam before making inside steam get into membrane pipe 4 through heating portion simultaneously, then spray saturation temperature's water through membrane pipe 4 again, heat the heat transfer once more, water produces the turbulent flow and rolls simultaneously, make water reach saturation temperature fast, make water in the casing at the low pressure, accomplish the oxygen separation under the condition of high temperature.
Because the working pressure is lower, the exhaust steam quantity is almost zero.
Example 2:
referring to fig. 1, the present embodiment is different in that: heating portion is coiled by heating pipe 5 and is constituted, and heating pipe 5 highly is less than the height of normal liquid level in the casing 1, 5 one end of heating pipe and 3 intercommunications of admission pipe, 5 other ends of heating pipe and 4 intercommunications of membrane tube, the connection can be dismantled on support frame 2 to heating pipe 5.
In actual use: hot steam gets into coils heating pipe 5, increase the stroke that steam removed, heating pipe 5 through coiling increases the heat transfer area with water contact, make steam get into heating pipe 5 after, there is enough long time to carry out the heat transfer, and then make steam convert saturated water into, reentrant membrane pipe 4, rethread membrane pipe 4 is with saturation temperature's water blowout, reheat the water in the casing 1 once more, through twice heating, make water reach saturation temperature fast, and then reach and reduce internal pressure, it is up to standard to realize dissolved oxygen.
Example 3:
referring to fig. 1, the present embodiment is different in that: the heating pipe 5 is in reciprocating type coiling, and the heating pipe 5 is arranged with casing 1 length direction, and the heating pipe 5 constitutes the heating surface of rectangle through reciprocating type coiling, and the heating pipe 5 is located casing 1 center to casing 1 inner circumferential surface between, the heating pipe.
In actual use: through reciprocating type heating pipe 5, make can increase the length of heating pipe 5 in the limited space in casing 1, make the heating pipe coil squat in casing 1 to support heating pipe 5 through support frame 2 and erect in casing 1, because heating pipe 5 length increases, thereby make the hot steam stroke increase, carry out the heat replacement through heating pipe 5 and water, make water reach the purpose of reheating and boiling, have sufficient time to make steam convert the saturated water into simultaneously.
Heating pipe 5 length is not less than 40 meters in this embodiment, prevents that heating pipe 5 from short excessively causing the heat transfer effect poor, gives enough stroke and makes the steam liquefaction be the saturated water, and the membrane tube spun is the saturated water simultaneously, and then makes the oxygen-eliminating device can not produce the vibration.
Example 4:
referring to fig. 2, the present embodiment is different in that: the heating pipe 5 is spirally coiled, the coiling direction of the heating pipe 5 is the same as the length direction of the shell 1, the axis of the spirally coiled heating pipe 5 is coaxial with the shell 1, and the spirally coiled heating pipe 5 is positioned between the inner wall surface of the shell 1 and the center of the shell 1.
In actual use: heating pipe 5 through spiral coiling can increase in the area of contact of water, improves the water heating scope simultaneously, makes the water in the casing 1 reheat, the speed of boiling improves, makes water reach the saturation temperature under corresponding pressure fast, simultaneously because spiral coiled heating pipe 5, after hot steam gets into, the radius that turns to increases, reduces the problem that produces 5 vibrations of heating pipe when beginning to get into steam, and it is faster to make steam convert the speed of saturated water into simultaneously.
Example 5:
referring to fig. 2, the present embodiment is different in that: the spiral type coiled heating pipe 5 is internally detachably connected with a positioning frame 6, and the positioning frame 6 is detachably connected with the support frame 2.
In actual use: the spiral-type coiled heating pipe 5 is divided up and down to be fixed in pipe moment through the positioning frame 6, and then is connected with the supporting frame 2 through the positioning frame 6, so that the spiral-type coiled heating pipe 5 can be stably kept in the shell 1.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art, and all such changes are within the scope of the present invention.
Claims (5)
1. An oxygen removal device for boiler feed water, comprising at least a housing (1) of an oxygen remover, characterized by further comprising:
the support frame (2), the support frame (2) is connected in the shell (1) in a detachable way;
the heating part is detachably connected to the support frame (2);
the steam inlet pipe (3), the steam inlet pipe (3) passes through the shell (1) and is communicated with one end of the heating part;
the membrane tube (4), this membrane tube (4) can dismantle the connection on support frame (2), and membrane tube (4) are located casing (1) internal face, and membrane tube (4) arrange along casing (1) length direction, membrane tube (4) one end and heating portion other end intercommunication, and the membrane tube (4) other end is the encapsulated situation.
2. The deaerator for boiler feed water of claim 1, characterized in that, the heating portion is coiled by heating pipe (5), and heating pipe (5) highly is less than the height of the normal liquid level in casing (1), heating pipe (5) one end communicates with steam inlet pipe (3), the heating pipe (5) other end communicates with membrane pipe (4), heating pipe (5) can be dismantled and connect on support frame (2).
3. The deaerating device for boiler feed water of claim 2, characterized in that the heating pipe (5) is reciprocatingly coiled, and the heating pipe (5) is arranged in the length direction of the housing (1), and the heating pipe (5) forms a rectangular heating surface by reciprocatingly coiling, and the heating pipe (5) is located between the center of the housing (1) and the inner circumferential surface of the housing (1).
4. The deaerating device for boiler feed water of claim 2, characterized in that the heating pipe (5) is spirally coiled, the coiling direction of the heating pipe (5) is the same as the length direction of the shell (1), the axis of the spirally coiled heating pipe (5) is coaxial with the shell (1), and the spirally coiled heating pipe (5) is positioned between the inner wall surface of the shell (1) and the center of the shell (1).
5. The deaerating device for boiler feed water according to claim 4, characterized in that a positioning frame (6) is detachably connected in the spirally wound heating pipe (5), and the positioning frame (6) is detachably connected with the supporting frame (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220078736.0U CN217274083U (en) | 2022-01-13 | 2022-01-13 | Deoxidizing device for boiler water supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220078736.0U CN217274083U (en) | 2022-01-13 | 2022-01-13 | Deoxidizing device for boiler water supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217274083U true CN217274083U (en) | 2022-08-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220078736.0U Active CN217274083U (en) | 2022-01-13 | 2022-01-13 | Deoxidizing device for boiler water supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217274083U (en) |
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2022
- 2022-01-13 CN CN202220078736.0U patent/CN217274083U/en active Active
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