CN207849517U - Circulating water afterheat heating system with series-parallel conversion function - Google Patents
Circulating water afterheat heating system with series-parallel conversion function Download PDFInfo
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- CN207849517U CN207849517U CN201721865987.9U CN201721865987U CN207849517U CN 207849517 U CN207849517 U CN 207849517U CN 201721865987 U CN201721865987 U CN 201721865987U CN 207849517 U CN207849517 U CN 207849517U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 83
- 238000010438 heat treatment Methods 0.000 title claims abstract description 29
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 11
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 abstract description 6
- 239000002918 waste heat Substances 0.000 abstract description 5
- 238000001816 cooling Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000009776 industrial production Methods 0.000 abstract description 2
- 239000008236 heating water Substances 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical class [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Steam Or Hot-Water Central Heating Systems (AREA)
Abstract
The utility model belongs to industrial production system and HVAC technology field, residual heat heating is realized in order to make full use of the waste heat in process-stream, the utility model provides a kind of circulating water afterheat heating system with series-parallel conversion function, the system in original industrial system by increasing low-heat position heat exchanger, high thermal potential heat exchanger, spare heat exchanger and a secondary water heat exchanger, and in internal system force (forcing) pump, first-level pipeline network water force (forcing) pump and water-water jet, and control valve one, valve two and the valve three of series-parallel conversion.In In The Initial Period Of Heating and latter stage, using the method for each heat exchanger parallel connection, the return water come from a secondary network water- to-water heat exchanger is set to carry out heat exchange cooling into each heat exchanger, in the cold when section, using concatenated method, so that the return water come from a secondary network water- to-water heat exchanger is entered heat exchange heating successively in heat exchanger, reach and make full use of system waste heat, ensures that the purpose that indoor temperature requires.
Description
Technical field
The utility model belongs to industrial production system and HVAC technology field, and in particular in a kind of industrial processes
Circulating water afterheat heating system with series-parallel conversion function.
Background technology
1. in industrial system, there is a large amount of process-stream to need to cool down, some stream temperatures are higher, consume quantity of circulating water
Very big, after exchanging heat in system, by tower, row is lost in air recirculated water, consumes in vain, causes very big
Energy waste.However, although this partial heat is big, since grade is low, it is difficult to utilize, or to use efficiency very low.
2. in the utilization of circulating water afterheat, there are compression heat pump and absorption heat pump, both heat pumps are required for driving
Energy（Electricity or steam）, and input energy consumption is bigger.
The characteristics of 3. in summary situation selects suitable process-stream heating twice, similar absorption heat pump, and
And system can be done greatly（It is more much larger than single machine absorption-type heat pump）.
Invention content
The utility model realizes residual heat heating in order to make full use of the waste heat in process-stream, and to provide one kind have
The circulating water afterheat heating system of series-parallel conversion function.
The utility model adopts the following technical solution：
A kind of circulating water afterheat heating system with series-parallel conversion function, including be connected in heating loop one or two
Outside grade pipe network water- to-water heat exchanger, including sequentially connected valve three, force (forcing) pump, high thermal potential heat exchanger, water-water jet and first-level pipeline network water
Pump, the water outlet of a secondary network water- to-water heat exchanger is sent to be connect with valve three, the water inlet and level-one of a secondary network water- to-water heat exchanger
Pipe network water sends pump connection outside；
Including low-heat position heat exchanger, the water outlet of the water inlet of low-heat position heat exchanger and a secondary network water- to-water heat exchanger connects
It connects, the water outlet of low-heat position heat exchanger is connect with water-water jet；
Including valve two, one end of valve two is connect with the water outlet of low-heat position heat exchanger, the other end of valve two with plus
Press pump connects.
The force (forcing) pump and high thermal potential heat exchanger both ends be parallel be connected in series by valve one and spare heat exchanger it is spare
Circuit.
It is respectively equipped with control at the inlet and outlet of low-heat position heat exchanger, high thermal potential heat exchanger and spare heat exchanger
Valve processed.
The utility model has the advantages that：
For the purpose of residual heat heating, is chosen from system and cooling logistics is needed to carry out heating water, when in system
It is when logistics has phase transformation generation, newly-increased heat exchanger is in parallel with the condenser in original system, it is some or all of to undertake original condensation
The function of device；When the process-stream in system does not have phase transformation, by the heat exchanger string in newly-increased heat exchanger and original system
Connection, partly undertakes the function of original heat exchanger, using such method come heating hot water.
Connection in series-parallel function, preliminary heating period and latter stage may be implemented in pipe network in entire heating plant, implements simultaneously to each heat exchanger
Join function, by from the heating water that a secondary network comes after heat exchanger in parallel exchanges heat for, through water-water jet samming, by level-one pipe
It is sent to a secondary network water- to-water heat exchanger after the pressurization of net water force (forcing) pump；It will be from a secondary network using concatenation function in period in severe winter
The heating water that water- to-water heat exchanger comes first heats 10 DEG C, after pumping up through heat exchanger, another heat exchanger heating 10 in reusing system
DEG C, after the temperature requirement for reaching heating water, sent out after having water-water jet samming, pump pressurization.
When system normal operation, Boiler Steam is utilized when system shutdown overhauls using the heat of system come heating water
Heat is provided.
Water-water jet is set, to the supplying hot water samming come from different heat exchangers.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
In figure：1- low-heat position heat exchanger, 2- high thermal potentials heat exchanger, the spare heat exchangers of 3-, mono- secondary network water- to-water heat exchangers of 4-,
5- valves one, 6- valves two, 7- valves three, 8- water-water jets, 9- force (forcing) pumps, 10- first-level pipeline network water send pump outside.
Specific implementation mode
In conjunction with attached drawing, specific embodiment of the present utility model is described further：
The utility model is to choose the process-stream that heat is big, the higher needs of grade are cooling in original industrial system（It is former
Having has heat exchanger in system, that is, the secondary network water- to-water heat exchanger 4 in illustrating）, on the basis of original heat exchanger, increase low-heat
Position heat exchanger 1 or high thermal potential heat exchanger 2, and spare heat exchanger 3 is set, fully, efficiently, targetedly utilize the remaining of system
Thermal energy.
The connection relation of the utility model is as shown in Figure 1, the secondary network water heat exchange including being connected in heating loop
Device 4, including sequentially connected valve 37, force (forcing) pump 9, high thermal potential heat exchanger 2, water-water jet 8 and first-level pipeline network water send pump 10 outside,
The water outlet of one secondary network water- to-water heat exchanger 4 is connect with valve 37, water inlet and the level-one pipe of a secondary network water- to-water heat exchanger 4
Net water sends 10 connection of pump outside；Including low-heat position heat exchanger 1, the water inlet of low-heat position heat exchanger 1 and a secondary network water- to-water heat exchanger 4
Water outlet connection, the water outlet of low-heat position heat exchanger 1 connect with water-water jet 8；Including valve 26, one end of valve 26 with it is low
The water outlet of thermal potential heat exchanger 1 connects, and the other end of valve 26 is connect with force (forcing) pump 9.
The force (forcing) pump 9 and high 2 both ends of thermal potential heat exchanger are parallel with to be connected in series by valve 1 and spare heat exchanger 3
Back-up circuit.
The course of work of the utility model is as follows：
1. water filling is vented.It opens water injection valve and air bleeding valve, the water filling into pipe network system waits for that water filling finishes, close water injection valve
And cycle is beaten in air bleeding valve, preparation.
2. dozen cycle.Open valve 1 and valve 37, entire pipe network system（Including first-level pipeline network system）Beat cycle.System
When system is in the state, low-heat position heat exchanger 1, high thermal potential heat exchanger 2 and spare heat exchanger 3 are in parallel, which applies to heat
Initial stage and latter stage, environment temperature is high at this time（The return water temperature come out by a secondary network water- to-water heat exchanger is higher）, through a two level
The water that pipe network water- to-water heat exchanger 4 comes out enter above three parallel connection heat exchanger it is interior once exchanged heat, then after water-water jet, then
It returns a secondary network water- to-water heat exchanger 4 to exchange heat, which, which plays, suitably drops the high-temperature water of In The Initial Period Of Heating and latter stage
Warm uniform effect.
3. access system.After the completion of the cycle for waiting for step 2, a secondary network water- to-water heat exchanger is connect 4 and enters process-stream system.
4. series-parallel conversion.Valve 26 is opened, starts force (forcing) pump 9, and close valve 1 and valve 37, implements low-heat
Position heat exchanger 1 and the heating of high 2 train of thermal potential heat exchanger.The state applies to the cold period, exchanges heat from a secondary network water
The return water that device connects 4 initially enters low-heat position heat exchanger 1 in Tthe utility model system and heats up 10 DEG C, then is carried out with force (forcing) pump 9
Pressurization, into heating up again 10 DEG C in the higher high thermal potential heat exchanger of thermal potential in system 2, the water after heating mixes 8, one through water-water jet
Grade pipe network water enters a secondary network water- to-water heat exchanger 4 after sending 10 pressurization of pump outside.If during system shutdown overhauls, can utilize standby
It is sent out after being heated heating water with heat exchanger.
5. the switching of waste heat source and standby heat source.System shutdown overhauls, and opens standby heat source steam valve, utilizes standby heat source
To heating system heat supply.
Using the system circulating water heat supply process technology, not only energy saving but also emission reduction, for entire full factory process system, not newly
Increase steam or electricity, realize heating, coal consumption, discharged nitrous oxides can be reduced, while the waste heat of system being made full use of again
Heating, achievees the purpose that energy saving of system.The power consumption of this circulatory system and regular circulation cooling tower row pump power consumption
It remains basically stable, does not increase power consumption newly, while recirculated water usage amount can be reduced.And due to whole system closed cycle, do not have
By the process of recirculated water and air heat exchange, the loss of recirculated water can be reduced to a certain extent.
Claims (3)
1. a kind of circulating water afterheat heating system with series-parallel conversion function, including the two level that is connected in heating loop
Pipe network water- to-water heat exchanger（4）, it is characterised in that：
Including sequentially connected valve three（7）, force (forcing) pump（9）, high thermal potential heat exchanger（2）, water-water jet（8）Outside first-level pipeline network water
Send pump（10）, a secondary network water- to-water heat exchanger（4）Water outlet and valve three（7）Connection, a secondary network water- to-water heat exchanger（4）'s
Water inlet sends pump outside with first-level pipeline network water（10）Connection；
Including low-heat position heat exchanger（1）, low-heat position heat exchanger（1）Water inlet and a secondary network water- to-water heat exchanger（4）Water outlet
Mouth connection, low-heat position heat exchanger（1）Water outlet and water-water jet（8）Connection；
Including valve two（6）, valve two（6）One end and low-heat position heat exchanger（1）Water outlet connection, valve two（6）It is another
One end and force (forcing) pump（9）Connection.
2. the circulating water afterheat heating system according to claim 1 with series-parallel conversion function, it is characterised in that：Institute
State force (forcing) pump（9）With high thermal potential heat exchanger（2）Both ends are parallel with by valve one（5）With spare heat exchanger（3）What is be connected in series is standby
Use circuit.
3. the circulating water afterheat heating system according to claim 2 with series-parallel conversion function, it is characterised in that：Institute
State low-heat position heat exchanger（1）, high thermal potential heat exchanger（2）With spare heat exchanger（3）Inlet and outlet at be respectively equipped with control
Valve processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721865987.9U CN207849517U (en) | 2017-12-27 | 2017-12-27 | Circulating water afterheat heating system with series-parallel conversion function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721865987.9U CN207849517U (en) | 2017-12-27 | 2017-12-27 | Circulating water afterheat heating system with series-parallel conversion function |
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| Publication Number | Publication Date |
|---|---|
| CN207849517U true CN207849517U (en) | 2018-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721865987.9U Active CN207849517U (en) | 2017-12-27 | 2017-12-27 | Circulating water afterheat heating system with series-parallel conversion function |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109059080A (en) * | 2018-10-18 | 2018-12-21 | 西安热工研究院有限公司 | It is a kind of can High Back Pressure Steam Turbine Units in series and parallel for the heat supply network circulation of hot-swap |
| CN110878957A (en) * | 2019-12-23 | 2020-03-13 | 北京市热力集团有限责任公司 | Urban heat energy comprehensive utilization system and method |
| CN112944445A (en) * | 2021-04-15 | 2021-06-11 | 晟源高科(北京)科技有限公司 | Series-parallel combination compression type heat pump heating system and switching method thereof |
-
2017
- 2017-12-27 CN CN201721865987.9U patent/CN207849517U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109059080A (en) * | 2018-10-18 | 2018-12-21 | 西安热工研究院有限公司 | It is a kind of can High Back Pressure Steam Turbine Units in series and parallel for the heat supply network circulation of hot-swap |
| CN110878957A (en) * | 2019-12-23 | 2020-03-13 | 北京市热力集团有限责任公司 | Urban heat energy comprehensive utilization system and method |
| CN112944445A (en) * | 2021-04-15 | 2021-06-11 | 晟源高科(北京)科技有限公司 | Series-parallel combination compression type heat pump heating system and switching method thereof |
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