CN205592930U - Take oxygen -eliminating device of air ability pre -heater - Google Patents
Take oxygen -eliminating device of air ability pre -heater Download PDFInfo
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- CN205592930U CN205592930U CN201620238984.1U CN201620238984U CN205592930U CN 205592930 U CN205592930 U CN 205592930U CN 201620238984 U CN201620238984 U CN 201620238984U CN 205592930 U CN205592930 U CN 205592930U
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- preheater
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- eliminating device
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Abstract
The utility model relates to a take oxygen -eliminating device of air ability pre -heater, including mending water preheater and deoxidization head, mend the condenser that water preheater is the air -source heat pump system, mending water preheater and being connected with the deoxidization water tank, mend water preheater and be connected with the deoxidization head, the deoxidization head is connected with steam heating device. The utility model discloses a heat pump system's condenser is as mending water preheater, and the oxygen -eliminating device can heat pump system combine the air with moisturizing deoxidization system, has realized energy utilization's maximize, has improved the moisturizing temperature of entering oxygen -eliminating device, is favorable to moisturizing quicker saturation temperature that reaches in the deoxidization head, for degree of depth deoxidization provides the condition, has improved deaerating effect.
Description
Technical field
This utility model relates to boiler feedwater thermal de-aeration field, more particularly, it relates to a kind of band air energy
The oxygen-eliminating device of preheater.
Background technology
The effect of oxygen-eliminating device is to remove oxygen soluble in water, it is to avoid the metal of the system such as boiler, Steam Turbine
At high temperature there is excessive oxide etch in parts.Currently used oxygen-eliminating device all uses thermal de-aeration method.Remove
Oxygen principle, according to henry's law and Dalton's law, i.e. under level pressure, heats water to saturation.If
On liquid level, in gas phase, the partial pressure of noncondensing gas balances pressure less than it, and gas can be in the effect of uneven pressure reduction
Under isolated by water.If discharging incondensable gas in time, constantly destroying its balance, keeping imbalance pressure
Difference, gas can constantly escape from water, during until total pressure is equal to water vapor pressure on liquid level, other gases
Partial pressure tend to 0, gas soluble in water all escapes and removes.Therefore, thermal de-aeration must possess
Two conditions: 1) heat transfer condition: quickly heat the water to saturation temperature under relevant pressure；2) mass transfer condition:
Gas is made to isolate rapidly from water and drain.
The trickle disc type oxygen-eliminating device of early application is harsh to inflow temperature and burden requirement, and its deaerating effect is relatively
Differ from, and the aperture of water spraying tray easily blocks.Later developed spray-filling type deaerator, its deaerating effect is than drenching
Water pond formula oxygen-eliminating device is good, but can only remove the 80%～90% of oxygen in water.Currently a popular rotating film type removes
Oxygen device, further enhances heat transfer, transmission, mass transport process, and rotating film type structure ensure that the smooth of this process
Implementing, deaerating effect is preferable.
Moisturizing deoxygenation thermal source is essentially low parameter steam.Whether heating power disc type, atomizing or rotating film type,
Moisturizing temperature is about 25 DEG C, and moisturizing realizes quick heat exchange by the contact with steam in deoxygenation head.
Compared with heating power disc type, the contacting efficiency of atomizing and rotating-film deaerator two media improves a lot, base
Originally can ensure that moisturizing is rapidly achieved saturation.But two ways is intended to consume steam.Turn with 120t
As a example by stove, rate of water make-up is 30t/h, temperature 25 DEG C, and low-pressure steam parameter is 0.8Mpa, saturated.To mend
Water is heated to 105 DEG C of required quantity of steams of saturation temperature and is about 2.5t/h.In terms of steam price 160 yuan/ton
Calculating, operating cost is 400 yuan/h.
Summary of the invention
The technical problems to be solved in the utility model is, it is provided that a kind of deaerating effect that improves, the saving energy
Oxygen-eliminating device with air energy preheater.
This utility model solves its technical problem and be the technical scheme is that a kind of band air of structure can preheat
The oxygen-eliminating device of device, including make-up water preheater and deoxygenation head, described make-up water preheater is air energy thermal pumping system
Condenser, described make-up water preheater is connected with deoxygenation water tank, and make-up water preheater is connected with deoxygenation head, deoxygenation head
It is connected with steam heater.
In such scheme, described make-up water preheater is shell-and-tube, and tube side is walked in moisturizing, air energy thermal pumping system
Shell side walked by cold-producing medium, and moisturizing water inlet header is divided into upper and lower two parts by dividing plate, and the cold-producing medium of High Temperature High Pressure is from benefit
Water preheater bottom enters, and becomes the cold-producing medium of cryogenic high pressure, then return after top-down moisturizing cools down
Compressor to heat pump.
In such scheme, the top of described make-up water preheater is provided with steam vent.
In such scheme, the lower section of described make-up water preheater is provided with jet pipe.
In such scheme, in described deoxygenation head, it is provided with filler group and comb group, the moisturizing that described jet pipe ejects
Packing layer is entered after the secondary distribution of comb group.
In such scheme, described comb group includes framework and the pipe bar of the arc being arranged in framework.
In such scheme, described packing layer includes framework and the net ripple filler being filled in framework.
In such scheme, described deoxygenation head is heating power disc type deoxygenation head, atomizing deoxygenation head or rotating film type deoxygenation
Head.
Implement the oxygen-eliminating device of a kind of band air energy preheater of the present utility model, have the advantages that
This utility model uses the condenser of heat pump as make-up water preheater, and oxygen-eliminating device is by air energy heat pump
System and moisturizing deaerating type of cycles combine, it is achieved that the maximization of utilization of energy, improve entrance oxygen-eliminating device
Moisturizing temperature, beneficially moisturizing more quickly reaches saturation temperature in deoxygenation head, carries for deep deoxygenization
Supply condition, improve deaerating effect.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the structural representation of the oxygen-eliminating device of this utility model band air energy preheater.
Detailed description of the invention
In order to technical characteristic of the present utility model, purpose and effect are more clearly understood from, existing comparison
Accompanying drawing describes detailed description of the invention of the present utility model in detail.
As it is shown in figure 1, the oxygen-eliminating device of this utility model band air energy preheater 1 includes make-up water preheater 1
With deoxygenation 2.Make-up water preheater 1 is connected with deoxygenation water tank, and the bottom of make-up water preheater 1 is deoxygenation 2,
Deoxygenation 2 is connected with steam heater.
Make-up water preheater 1, for moisturizing is heated to about 75 DEG C from 25 DEG C, is equivalent to air energy heat pump system
The condenser of system.Make-up water preheater 1 is shell-and-tube, and tube side, the refrigeration of air energy thermal pumping system are walked in moisturizing
Shell side is walked in agent, and moisturizing water inlet header is divided into upper and lower two parts by dividing plate 3, and the cold-producing medium of High Temperature High Pressure is from benefit
Water preheater 1 bottom enters, and becomes the cold-producing medium of cryogenic high pressure, so after top-down moisturizing cools down
After return to the compressor of heat pump.
The moisturizing of about 25 DEG C enters on the left of dividing plate 3 from preheater 1 top, heats through high-temperature high-pressure refrigerant
To about 75 DEG C, then it is collected to, on the right side of preheater 1 upper baffle plate 3, pass to bottom by liaison tube
Filler group and comb group and the heating further deoxygenation of steam.Preheater 1 top is provided with steam vent,
For discharging the air that top is collected.
Above packing layer and comb group, moisturizing is spouting through jet pipe, laggard through the secondary distribution of comb group
Enter packing layer.Comb group is pipe bar and the framework composition that sheet metal is cleaved, be pressed into arc.Packing layer by
Net ripple filler and framework composition.
Except packing layer and comb group, deoxygenation 2 can also be heating power disc type deoxygenation head, atomizing deoxygenation head
Or rotating film type deoxygenation head, its scheme being combined with make-up water preheater 1 falls within protection of the present utility model
Scope.
Above in conjunction with accompanying drawing, embodiment of the present utility model is described, but this utility model is not
Be confined to above-mentioned detailed description of the invention, above-mentioned detailed description of the invention be only schematically rather than
Restrictive, those of ordinary skill in the art is under enlightenment of the present utility model, without departing from this practicality
In the case of novel objective and scope of the claimed protection, it may also be made that a lot of form, these belong to
Within protection of the present utility model.
Claims (8)
1. the oxygen-eliminating device of a band air energy preheater, it is characterised in that include make-up water preheater and deoxygenation
Head, described make-up water preheater is the condenser of air energy thermal pumping system, described make-up water preheater and deoxygenation water tank
Connecting, make-up water preheater is connected with deoxygenation head, and deoxygenation head is connected with steam heater.
The oxygen-eliminating device of a kind of band air energy preheater the most according to claim 1, it is characterised in that
Described make-up water preheater is shell-and-tube, and tube side is walked in moisturizing, and shell side walked by the cold-producing medium of air energy thermal pumping system, mends
Water water inlet header is divided into upper and lower two parts by dividing plate, and the cold-producing medium of High Temperature High Pressure enters from make-up water preheater bottom
Enter, after top-down moisturizing cools down, become the cold-producing medium of cryogenic high pressure, be then return to heat pump
Compressor.
The oxygen-eliminating device of a kind of band air energy preheater the most according to claim 1, it is characterised in that
The top of described make-up water preheater is provided with steam vent.
The oxygen-eliminating device of a kind of band air energy preheater the most according to claim 1, it is characterised in that
The lower section of described make-up water preheater is provided with jet pipe.
The oxygen-eliminating device of a kind of band air energy preheater the most according to claim 4, it is characterised in that
Being provided with filler group and comb group in described deoxygenation head, the moisturizing that described jet pipe ejects is through the secondary distribution of comb group
Rear entrance packing layer.
The oxygen-eliminating device of a kind of band air energy preheater the most according to claim 5, it is characterised in that
Described comb group includes framework and the pipe bar of the arc being arranged in framework.
The oxygen-eliminating device of a kind of band air energy preheater the most according to claim 5, it is characterised in that
Described packing layer includes framework and the net ripple filler being filled in framework.
The oxygen-eliminating device of a kind of band air energy preheater the most according to claim 1, it is characterised in that
Described deoxygenation head is heating power disc type deoxygenation head, atomizing deoxygenation head or rotating film type deoxygenation head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620238984.1U CN205592930U (en) | 2016-03-25 | 2016-03-25 | Take oxygen -eliminating device of air ability pre -heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620238984.1U CN205592930U (en) | 2016-03-25 | 2016-03-25 | Take oxygen -eliminating device of air ability pre -heater |
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| Publication Number | Publication Date |
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| CN205592930U true CN205592930U (en) | 2016-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620238984.1U Active CN205592930U (en) | 2016-03-25 | 2016-03-25 | Take oxygen -eliminating device of air ability pre -heater |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105605553A (en) * | 2016-03-25 | 2016-05-25 | 中冶南方工程技术有限公司 | Deaerator with air-source preheater |
-
2016
- 2016-03-25 CN CN201620238984.1U patent/CN205592930U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105605553A (en) * | 2016-03-25 | 2016-05-25 | 中冶南方工程技术有限公司 | Deaerator with air-source preheater |
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