CN208154448U - A kind of recycling of boiler blowdown water and residual heat using device - Google Patents
A kind of recycling of boiler blowdown water and residual heat using device Download PDFInfo
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- CN208154448U CN208154448U CN201820650160.4U CN201820650160U CN208154448U CN 208154448 U CN208154448 U CN 208154448U CN 201820650160 U CN201820650160 U CN 201820650160U CN 208154448 U CN208154448 U CN 208154448U
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Abstract
The utility model discloses a kind of recycling of boiler blowdown water and residual heat using devices, it includes boiler, cold water storage cistern, float switch, centrifugal water pump and water-cooling wall, the lower part of the boiler is equipped with sewerage water inlet pipe, top is equipped with overflow pipe corresponding with cold water storage cistern, the water-cooling wall is mounted in boiler, the water inlet of water-cooling wall is connect by soft water water inlet pipe with the hose for supplying boiler, water outlet is connect by soft water outlet pipe with boiler feed, the sewerage water inlet pipe of the centrifugal water pump connects cold water storage cistern, sewage outlet pipe is connect with drainage facility, the float switch is mounted in cold water storage cistern, the contact of float switch controls centrifugal water pump.The utility model recycles the waste heat for collecting water using water-cooling wall, the water supply user after cooling is used using centrifugal water pump, not only realize the recycling of water resource and waste heat, and reduce net positive suction head requirement to pump, to reduce infrastructure investment expense and difficulty of construction, the service life of equipment is extended.
Description
Technical field
The utility model relates to a kind of condensed water in high temperature for boiler blowdown water and steam trap discharge to return
It receives, and using the waste heat of recycle-water to deaerator feedwater（Softened water）The device heated, belongs to technical field of sewage.
Background technique
For therrmodynamic system, the recycling of boiler blowdown water and steam condensate (SC) is increasingly by each for energy unit
Pay attention to.During reuse, the design of device is particularly significant, selects suitable recyclable device not only and can increase making for recovered water pump
With the service life, moreover it is possible to infrastructure investment expense and difficulty of construction be greatly decreased, while also can be energy saving, realize water resource and thermal energy
All recycle.Existing recyclable device mostly uses airtight water tank（Pond）Or open water tank（Pond）The composite structure of+pump, due to
The temperature for collecting water is higher（80 DEG C or so）, net positive suction head requirement very high, traditional centrifugal pump equal nothing of this device to pump
Method uses, and the service life of pump otherwise will be greatly shortened, therefore general enterprises generally use backward flow type pumping plant, to increase water pump
Inlet pressure, realize collect water conveying.But which adds infrastructure investment expense and difficulty of construction, also increase simultaneously
The occupied area of equipment.Some Enterprises realize the recycling of water by the way of natural cooling, i.e., water temperature are reduced to 40 DEG C or so
When open blowback use, but this method only water is recycled, waste heat is not utilized, and pond needed for natural cooling
It is larger, increase infrastructure investment expense.
Utility model content
The purpose of this utility model is that aiming at the disadvantages of the prior art, a kind of boiler blowdown water recycling and waste heat benefit are provided
Infrastructure investment expense and difficulty of construction are reduced, the use of equipment is extended while being realized that water resource and waste heat recycle with device
Service life.
To achieve the above object, the utility model adopts the following technical solution：
A kind of recycling of boiler blowdown water and residual heat using device, include in composition boiler, cold water storage cistern, float switch, from
Edema with the heart involved pump and water-cooling wall, the lower part of the boiler are equipped with sewerage water inlet pipe, and top is equipped with overflow corresponding with cold water storage cistern
Pipe, the water-cooling wall are mounted in boiler, and the water inlet of water-cooling wall is connected by the hose of soft water water inlet pipe and supply boiler
It connects, water outlet is connect by soft water outlet pipe with boiler feed, and the sewage water inlet pipe of the centrifugal water pump connects cold water storage cistern, sewage
Outlet pipe is connect with drainage facility, and the float switch is mounted in cold water storage cistern, and the contact of float switch controls centrifugal water pump.
The recycling of above-mentioned boiler blowdown water and residual heat using device, the water-cooling wall are arranged two, respectively upper water-cooling wall and
Lower water-cooling wall, the two are arranged in boiler up and down, and the water inlet of lower water-cooling wall passes through soft water water inlet pipe and supplies the soft of boiler
Water pipe connection, water outlet connect the water inlet of water-cooling wall, and the water outlet of upper water-cooling wall passes through soft water outlet pipe and boiler feed
Connection.
Above-mentioned boiler blowdown water recycling and residual heat using device, the centrifugal water pump are arranged two, and the two is connected in parallel, often
The water inlet of a centrifugal water pump is equipped with shut-off valve, and water outlet is equipped with non-return valve and shut-off valve.
Above-mentioned boiler blowdown water recycling and residual heat using device, the top of the boiler are equipped with gland steam exhauster.
Above-mentioned boiler blowdown water recycling and residual heat using device, the centrifugal water pump are mounted in pump house.
The utility model recycles the waste heat for collecting water first with water-cooling wall, then recycles centrifugal water pump that will drop
Water supply user after temperature uses, and not only realizes the recycling of water resource and waste heat, but also reduce and want to the net positive suction head of pump
It asks, to reduce infrastructure investment expense and difficulty of construction, extends the service life of equipment.
Detailed description of the invention
Utility model will be further described in detail below with reference to the attached drawings and specific embodiments.
Fig. 1 is the structural schematic diagram of the utility model.
In figure respectively marked as：1, sewerage water inlet pipe (hot-water line), 2, soft water water inlet pipe, 3, lower water-cooling wall, 4, upper water cooling
Wall, 5, soft water outlet pipe, 6, boiler, 7, gland steam exhauster, 8, overflow pipe, 9, cold water storage cistern, 10, float switch, 11, pump house, 12,
Centrifugal water pump, 13, sewage outlet pipe (cold water pipe).
Specific embodiment
The utility model provides one kind and can recycle boiler blowdown water and steam condensate (SC) resource and recycle thermal energy
Can continuous and steady operation integrated apparatus, which has well solved that pump selection existing for existing product is difficult, uses
Service life is short, the unserviceable problem of waste heat.
Referring to Fig. 1, the utility model mainly includes lower water-cooling wall 3, upper water-cooling wall 4, boiler 6, overflow pipe 8, cold water storage cistern
9, float switch 10, pump house 11 and centrifugal water pump 12.Water is installed in the water-cooling wall 3 under the installation of 6 inner lower of boiler, upper survey
Cold wall 4, boiler blowdown water and steam condensate (SC) enter boiler 6, hot water and lower water-cooling wall 3, upper water by sewerage water inlet pipe 1
Cold wall 4 passes through overflow pipe 8 and enters cold water storage cistern 9 after exchanging heat, the water in cold water storage cistern 9 is controlled after reaching certain liquid level by float switch 10
The start and stop of centrifugal water pump 12 processed, centrifugal water pump 12 pass through sewage outlet pipe 13 for the cold water supply after heat exchange to each user.Supply
The soft water of boiler is entered inside two water-cooling walls by soft water water inlet pipe 2, achievees the purpose that exchange heat with hot water, soft after heating
Water is supplied to boiler feed by soft water outlet pipe 5.On the top of cold water storage cistern 9, gland steam exhauster 7 is set.
The utility model is mounted on boiler blowdown water junction, blowdown hot water and soft water and passes through temperature after water-cooling wall indirect heat exchange
Degree reduces, and the sewerage after cooling can be promoted by common centrifugal water pump, avoids and flows backward mode using pump group and absorb water institute
Bring investment is big, the problem of taking up a large area, supply the soft water of boiler feed and boiler blowdown water exchanged heat after temperature
It increases, reduces the consumption of steam when normal heating uses, achieved the purpose that heat recovery.
The utility model structure is simple, and design is reasonable.Test proves that the effect ten in terms of solving pump selection difficulty
Clearly demarcated aobvious, Ordinary Centrifugal Pumps can meet requirement, before the utility model use, certain steel mill's boiler room sewerage reuse dress
It sets and sewerage is conveyed using immersible pump, because of water temperature height（80 DEG C or so）, immersible pump using several days with regard to scaling loss, then use centrifugal pump
The mode of+bottom valve is drawn water, self priming pump draws water, and all because net positive suction head is inadequate, pump group is unable to run.
After the utility model, because boiler blowdown water have passed through the indirect cooling of oxygen-eliminating device supply soft water（It is down to 45
DEG C or so）, it being conveyed using the promotion that water can be completed in ordinary single-stage centrifugal pump, water resource recovering effect is very ideal, and because
It is heated indirectly to oxygen-eliminating device supply soft water in heat transfer process（25 DEG C are increased to 40 DEG C）, reduce subsequent for the part
Quantity of steam used in soft water heating has achieved the purpose that energy-saving, reduction production cost, has solved existing product and using
The problem of.
Claims (5)
1. a kind of boiler blowdown water recycling and residual heat using device, which is characterized in that include boiler in composition（6）, cold water storage cistern
（9）, float switch（10）, centrifugal water pump（12）And water-cooling wall, the boiler（6）Lower part be equipped with sewerage water inlet pipe（1）,
Top is equipped with and cold water storage cistern（9）Corresponding overflow pipe（8）, the water-cooling wall is mounted on boiler（6）It is interior, the water inlet of water-cooling wall
Mouth passes through soft water water inlet pipe（2）It is connect with the hose of supply boiler, water outlet passes through soft water outlet pipe（5）With boiler feed
Connection, the centrifugal water pump（12）Sewerage water inlet pipe connect cold water storage cistern（9）, sewage outlet pipe（13）It is connect with drainage facility,
The float switch（10）It is mounted on cold water storage cistern（9）It is interior, float switch（10）Contact control centrifugal water pump（12）.
2. boiler blowdown water recycling according to claim 1 and residual heat using device, which is characterized in that the water-cooling wall is set
Two are set, respectively upper water-cooling wall（4）With lower water-cooling wall（3）, the two is arranged in boiler up and down（6）It is interior, lower water-cooling wall（3）'s
Water inlet passes through soft water water inlet pipe（2）It is connect with the hose of supply boiler, water outlet connects water-cooling wall（4）Water inlet, on
Water-cooling wall（4）Water outlet pass through soft water outlet pipe（5）It is connect with boiler feed.
3. boiler blowdown water recycling according to claim 1 or 2 and residual heat using device, which is characterized in that the centrifugation
Water pump（12）Setting two, the two is connected in parallel, each centrifugal water pump（12）Water inlet be equipped with shut-off valve, water outlet is all provided with
There are non-return valve and shut-off valve.
4. boiler blowdown water recycling according to claim 3 and residual heat using device, which is characterized in that the boiler
（6）Top be equipped with gland steam exhauster（7）.
5. boiler blowdown water recycling according to claim 4 and residual heat using device, which is characterized in that the centrifugal water pump
（12）It is mounted on pump house（11）It is interior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820650160.4U CN208154448U (en) | 2018-05-03 | 2018-05-03 | A kind of recycling of boiler blowdown water and residual heat using device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820650160.4U CN208154448U (en) | 2018-05-03 | 2018-05-03 | A kind of recycling of boiler blowdown water and residual heat using device |
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| Publication Number | Publication Date |
|---|---|
| CN208154448U true CN208154448U (en) | 2018-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820650160.4U Active CN208154448U (en) | 2018-05-03 | 2018-05-03 | A kind of recycling of boiler blowdown water and residual heat using device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081401A (en) * | 2019-05-17 | 2019-08-02 | 江苏德克沃热力设备有限公司 | A kind of steam generating equipment recycling waste water residual heat |
-
2018
- 2018-05-03 CN CN201820650160.4U patent/CN208154448U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081401A (en) * | 2019-05-17 | 2019-08-02 | 江苏德克沃热力设备有限公司 | A kind of steam generating equipment recycling waste water residual heat |
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