CN209540985U - Mixed water heat exchange heating system - Google Patents
Mixed water heat exchange heating system Download PDFInfo
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- CN209540985U CN209540985U CN201920064960.2U CN201920064960U CN209540985U CN 209540985 U CN209540985 U CN 209540985U CN 201920064960 U CN201920064960 U CN 201920064960U CN 209540985 U CN209540985 U CN 209540985U
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Abstract
The utility model discloses a kind of mixed water heat exchange heating systems, it is changed including Venturi tube, plate, multifunctional pump, ball valve, butterfly valve, check-valves, safety valve and flow control valve, pressure sensor, temperature sensor and controller, the utility model uses high area, low area's series and parallel Coexistence mode, applicable primary system temperature range is wider, and value is between 60 DEG C~110 DEG C；The method of operation changes with heat supply temperature and is changed, flexible and convenient.Venturi tube is being arranged for water end (W.E.) in the utility model, using Venturi effect, realizes " soft water resistance " variable frequency adjustment, reaches temperature and be precisely controlled, and the utility model compares existing plate group of changing planes and more economizes on electricity, is water-saving, but heat consumption is slightly higher.Compared with conventional panels change the indirect heating of form, the water charging system in heat exchanger and heat exchange station is eliminated, has many advantages, such as that occupied area is small, project cost is low, the simple short time limit of installation, heat loss is small, water-saving and electricity-saving, safe and efficient, unattended, maintenance cost is cheap.
Description
Technical field
The utility model belongs to central heating technical field, and in particular to a kind of mixed water heat exchange heating system.
Background technique
According to the existing heat supply principle in China, the design water temperature of high-temperature water heat supply: a water is generally at 135 DEG C hereinafter, reach
The hydraulic pressure at secondary heat exchange station is generally between 0.3~1.0MPa；And secondary water designs water temperature: for using floor laying heat dissipation
Situation: it supplies water 45 DEG C~55 DEG C, 35 DEG C~45 DEG C of return water, 10 DEG C of the temperature difference.
The personnel for understanding mixed water heat supply are generally known that existing mixed water heat transfer form includes the following three types: mixing (bypass)
Adding pressure type, water supply adding pressure type, return water adding pressure type.(bypass) adding pressure type is wherein mixed, is briefly exactly for once supplying water, returns
When water pressure is able to satisfy mixed water heat exchange station and has enough available pressure heads, it is only necessary to for increasing a mixed water between water return pipeline
Pipeline mixes and increases frequency conversion multifunctional pump on waterpipe, and increases regulating valve on the pipeline once to supply water, and mixed water transport both may be implemented
Capable mode.
If changing commanders supply water temperature stability contorting 45 DEG C~55 using a platen using traditional mixed water heat exchange mode
DEG C, from the point of view of plate changes design angle, an entrance and outlet temperature drop are larger, also to reach 50 DEG C to meet secondary outlet, then
It will cause that first and second effluent amount is inconsistent, cannot achieve the purpose of high and low area's series connection heat supply.If changed using two platens, control
One step swaps out mouthful temperature at 70 DEG C or so, realizes that two steps change cross-exchange and meet high and low area's heat supply, plate changes design discharge not
Greater than 40t/h, flow velocity is not less than 0.5m/s, but system production gas is more, cannot still reach heat supply purpose after high point exhaust, at this time
Secondary cycle flow can only achieve 18.4t/h and system flow rate is slower, more serious problem is that primary net supply water temperature is only
75 DEG C or so, 35 DEG C of secondary water-supply temperature after two-stage plate heat exchange, it is unable to reach heat supply needs at all.
Utility model content
The utility model technical issues that need to address are to provide a kind of safe and efficient, accurate, the high area of temperature control, low area
Supply water the mixed water heat exchange heating system coexisted in series and parallel.
To solve the above problems, technical solution adopted in the utility model is:
A kind of mixed water heat exchange heating system, including Venturi tube, plate change, multifunctional pump, ball valve, butterfly valve, check-valves, safety valve
And flow control valve sets gradually butterfly valve, flow control in pipeline G1 wherein a water supply line G1 connection Venturi tube inlet side
Ball valve Q7 is arranged in pipeline G1 in valve processed, butterfly valve, the hot import that Venturi exit side is changed by pipeline G2 connecting plate, what plate changed
Heat outlet passes through the low area user water supply side of pipeline G3 connection, and ball valve Q8 is arranged in pipeline G3, and the cold import that plate changes passes through pipeline G4
Low area user return water side is connected, ball valve Q10 and check-valves are set gradually in pipeline G4, the cold outlet that plate changes is connected by pipeline G5
The area Jie Yonggao user's water supply side, is arranged ball valve Q9 in pipeline G5, and high area user return water side connects water return pipeline G6, in pipeline G5 according to
Secondary setting check-valves, safety valve, ball valve Q2, check-valves are connected with pipeline G7, pipeline between the hot import that plate changes and heat outlet
It is equipped with ball valve Q5 in G7, and is located at ball valve Q7 and ball valve Q8 between the hot import that pipeline G5 and plate change, heat outlet, is changed in plate
Hot import and cold outlet between be connected with pipeline G8, ball valve Q6 is equipped in pipeline G8, and be located at ball valve Q7 and ball valve Q9
Between hot import that pipeline G8 and plate change, cold outlet, it is connected in the plate cold import changed and between water return pipeline pipeline G9, pipeline
Be equipped with ball valve Q11 in G9, and be located at ball valve Q10 between the cold import that pipeline G9 and plate change, make check-valves be located at pipeline G9 with
Between high area user return water side, pipeline G10, pipeline G10 and return water are connected between Venturi tube import and water return pipeline G6
The junction pipeline G6 is equipped with multifunctional pump, multifunctional pump on the water return pipeline G6 between safety valve and ball valve Q2 in pipeline G10
Multifunctional pump outlet non-return valve and ball valve Q3 are successively arranged on the pipeline of outlet side.
It further, further include pressure sensor, temperature sensor and controller, wherein temperature sensor includes: peace
Loaded on the T1 for being used to measure supply water temperature on a water supply line G1, it is installed on pipeline G2 for measurement plate heat exchange inlet temperature
T3, be installed on pipeline G5 for measuring the T4 of high area user supply water temperature, be installed on water return pipeline G6 on close to user time
Water side is used to measure the T5 of user's return water temperature, is installed on water return pipeline G6 close to backwater end for measuring return water temperature
T2 is installed on for measuring the T6 of low area user supply water temperature on pipeline G3, and pressure sensor includes: to be installed on a water supplying pipe
Close to the P1 for being used to measure pressure of supply water for water end (W.E.) on road G1, it is installed on a water supply line G1 close to Venturi tube for surveying
The P3 for measuring Venturi tube inlet side pressure of supply water is installed on pipeline G2 close to Venturi tube for measuring Venturi exit side
The P4 of pressure of supply water is installed on the P5 for being used to measure multifunctional pump inlet side pressure of return water on water return pipeline G6 close to multifunctional pump, peace
Loaded on the P2 for being used to measure pressure of return water on water return pipeline G6 close to backwater end；Controller is for detecting all temperature and pressures
And real-time control flow control valve according to testing result, adjust water supply flow.
Further, when working in series system, ball valve Q5, Q6, Q11 are closed, and ball valve Q7, Q8, Q9, Q10 are opened, and one
It is secondary water supply pass sequentially through Venturi tube, plate changes, low area user, high area user heat exchange after enter backwater end.When working in parallel connection side
When formula, ball valve Q5, Q6, Q11 are opened, and ball valve Q7, Q8, Q9, Q10 are closed, and primary water supply passes sequentially through Venturi tube, parallel connection enters
After low area user and the area Gao user exchange heat, then enter backwater end through water return pipeline G6.
The beneficial effects of adopting the technical scheme are that
The utility model uses high area, low area's series and parallel Coexistence mode, and applicable primary system temperature range is wider, value
Between 60 DEG C~110 DEG C；The method of operation changes with heat supply temperature and is changed, flexible and convenient.It is secondary using series connection heat-supplying mode
Stability of flow, it is low that plate changes the high heat consumption of the big thermal efficiency of the temperature difference；Easy to operate, flexible using heat-supplying mode in parallel, opposite heat consumption is slightly higher
Power consumption is low, and it is relative complex to adjust control.
Venturi tube is being arranged for water end (W.E.) in the utility model, using Venturi effect, realizes " soft water resistance " variable frequency adjustment, reaches
It is precisely controlled to temperature, variable-flow operation keeps secondary cycle flow velocity adjustable, and dual utilizing status is obvious.In conjunction with flow control valve
Flow regulation and control is carried out, flow control valve can be used as the use of the shut-off valve under emergency rating, improve the safety of system
Property.
The utility model compares existing plate and changes planes group more economize on electricity, water-saving, but heat consumption is slightly higher.It is changed between form with conventional panels
It connects heat supply to compare, eliminates the water charging system in heat exchanger and heat exchange station, with occupied area is small, project cost is low, installation is simple
Single short time limit, heat loss be small, water-saving and electricity-saving, safe and efficient, unattended, maintenance cost are cheap (substantially non-maintaining) etc. excellent
Point.
Detailed description of the invention
Fig. 1 is the utility model parallel connection heat supply schematic diagram；
Fig. 2 is the utility model series connection heat supply schematic diagram；
Wherein: 1-1, check-valves A, 1-2, check-valves B, 1-3, check-valves C, 2, butterfly valve, 3, flow control valve, 4, venturi
Pipe, 5, multifunctional pump outlet non-return valve, 6, multifunctional pump, 7, plate change, 8, safety valve, 9, high area user, 10, low area user.
Specific embodiment
Utility model is described in further detail with reference to the accompanying drawing:
As depicted in figs. 1 and 2, the utility model includes that Venturi tube 4, plate change 7 (plate heat exchangers), multifunctional pump 6, ball
Valve, butterfly valve 2, check-valves, safety valve 8, flow control valve 3, pressure sensor, temperature sensor and controller, wherein once
Water supply line G1 connection Venturi tube inlet side sets gradually butterfly valve, flow control valve, butterfly valve in pipeline G1, and Venturi tube goes out
Ball valve Q7 is arranged in pipeline G1 in the hot import that mouthful side is changed by pipeline G2 connecting plate, and the heat that plate changes is exported to be connected by pipeline G3
Low 10 water supply side of area user, is arranged ball valve Q8 in pipeline G3, the cold import that plate changes by the low area user return water side of pipeline G4 connection,
Ball valve Q10 and check-valves A1-1 is set gradually in pipeline G4, the cold outlet that plate changes is supplied by pipeline G5 connection with high area user 9
Water side, ball valve Q9 is arranged in pipeline G5, and high area user return water side connects water return pipeline G6, sets gradually check-valves in pipeline G5
B1-2, safety valve 8, ball valve Q2, check-valves C1-3 are connected with pipeline G7, pipeline G7 between the hot import that plate changes and heat outlet
In be equipped with ball valve Q5, and so that ball valve Q7 and ball valve Q8 is located at hot import that pipeline G5 and plate change, between heat exports, changed in plate
It is connected with pipeline G8 between hot import and cold outlet, is equipped with ball valve Q6 in pipeline G8, and ball valve Q7 and ball valve Q9 is made to be located at pipe
Between hot import that road G8 and plate change, cold outlet, it is connected in the plate cold import changed and between water return pipeline pipeline G9, pipeline G9
In be equipped with ball valve Q11, and be located at ball valve Q10 between the cold import that pipeline G9 and plate change, check-valves made to be located at pipeline G9 and height
Between area user's return water side, pipeline G10, pipeline G10 and return pipe are connected between Venturi tube import and water return pipeline G6
The road junction G6 is equipped with multifunctional pump on the water return pipeline G6 between safety valve and ball valve Q2 in pipeline G10, multifunctional pump goes out
Multifunctional pump outlet non-return valve 5 and ball valve Q3 are successively arranged on the pipeline of mouth side；Temperature sensor includes: to be installed on a water supplying pipe
For measuring the T1 of supply water temperature on road G1, it is installed on the T3 on pipeline G2 for measurement plate heat exchange inlet temperature, is installed on pipe
For measuring the T4 of high area user supply water temperature on road G5, it is installed on water return pipeline G6 and is used close to user's return water side for measuring
The T5 of family return water temperature is installed on the T2 for being used to measure return water temperature on water return pipeline G6 close to backwater end, is installed on pipeline G3
On for measuring the T6 of low area user supply water temperature, pressure sensor includes: to be installed on a water supply line G1 close to water supply
The P1 for measuring pressure of supply water is held, is installed on a water supply line G1 close to Venturi tube for measuring Venturi tube import
The P3 of side pressure of supply water is installed on the P4 for being used to measure Venturi exit side pressure of supply water on pipeline G2 close to Venturi tube,
It is installed on the P5 for being used to measure multifunctional pump inlet side pressure of return water on water return pipeline G6 close to multifunctional pump, is installed on water return pipeline G6
The upper P2 for being used to measure pressure of return water close to backwater end；Controller is for detecting all temperature and pressures and according to testing result
Real-time control flow control valve adjusts water supply flow.
As shown in Figure 1, ball valve Q5, Q6, Q11 are opened when working in parallel way, ball valve Q7, Q8, Q9, Q10 are closed,
It is primary supply water pass sequentially through Venturi tube, it is in parallel enter low area user and the area Gao user heat exchange after, then through water return pipeline G6 into
Enter backwater end.
Specific: 40 DEG C of the low-temperature return water that primary 90 DEG C of high-temperature water of water supply and multifunctional pump of this system are sent out is in venturi
The mixing of pipe front end, the water temperature after Venturi tube hot and cold water is sufficiently mixed are 50 DEG C, and 50 DEG C of middle warm water is by dividing after mixing
Stream, is gone by height, low area's water supply line is directly entered high area, in user man, low area respectively, and heat is dispersed into user family
For warming oneself, water temperature is down to 40 DEG C, then gone by height, low area's return piping returns in the return water of therrmodynamic system, part of water
It is once supplied water and is mixed with this system by multifunctional pump pressurization.Plate heat exchanger is not involved in heat exchange.
As shown in Fig. 2, ball valve Q5, Q6, Q11 are closed when working in series system, ball valve Q7, Q8, Q9, Q10 are opened,
It is primary supply water pass sequentially through Venturi tube, plate changes, low area user, enters backwater end after high area user heat exchange.
Specific: 40 DEG C of the low-temperature return water that primary 90 DEG C of high-temperature water of water supply and multifunctional pump of this system are sent out is in venturi
The mixing of pipe front end, the water temperature after Venturi tube hot and cold water is sufficiently mixed are 60 DEG C, and 60 DEG C of middle warm water passes through plate after mixing
Formula heat exchanger is cooled to 50 DEG C, then is entered in user man, low area by low area's water supply pipe, and heat is dispersed into user family
For warming oneself, water temperature is down to 40 DEG C, then returns to plate heat exchanger by low area's return piping again and is warming up to 50 DEG C again, heating
Water afterwards is entered in user man, high area by high area's water supply line, and heat is dispersed into user family for warming oneself, water temperature drop
It to 40 DEG C, is returned in the return water of this system by high area's return piping, part of water passes through multifunctional pump pressurization and this system one
Secondary water supply mixing.
The utility model use series and parallel Coexistence mode, be applicable in a supply water temperature range it is wider, value 60 DEG C~
Between 110 DEG C；The method of operation changes with heat supply temperature and is changed, flexible and convenient.It is recommended that: one time supply water temperature reaches stable 85
DEG C or more, series connection heat supply can be changed with input board, to reduce heat consumption index.
Claims (4)
- The heating system 1. a kind of mixed water exchanges heat, it is characterised in that: including Venturi tube (4), plate change (7), multifunctional pump (6), ball valve, Butterfly valve (2), check-valves, safety valve (8) and flow control valve (3), wherein a water supply line G1 connection Venturi tube inlet side, Set gradually butterfly valve, flow control valve, butterfly valve in pipeline G1, the heat that Venturi exit side is changed by pipeline G2 connecting plate into Mouthful, ball valve Q7 is set in pipeline G1, and the heat outlet that plate changes passes through low area user (10) water supply side of pipeline G3 connection, sets in pipeline G3 Place valve Q8, the cold import that plate changes by the low area user return water side of pipeline G4 connection, set gradually in pipeline G4 ball valve Q10 and Check-valves A (1-1), the cold outlet that plate changes pass through high area user (9) water supply side of pipeline G5 connection, ball valve are arranged in pipeline G5 Q9, high area user return water side connect water return pipeline G6, set gradually check-valves B (1-2), safety valve (8), ball valve in pipeline G5 Q2, check-valves C (1-3) are connected with pipeline G7 between the hot import that plate changes and heat outlet, and ball valve Q5 is equipped in pipeline G7, and It is located at ball valve Q7 and ball valve Q8 between the hot import that pipeline G5 and plate change, heat outlet, in the hot import and cold outlet that plate changes Between be connected with pipeline G8, ball valve Q6 is equipped in pipeline G8, and ball valve Q7 and ball valve Q9 is made to be located at the heat that pipeline G8 and plate change Between import, cold outlet, it is connected in the plate cold import changed and between water return pipeline pipeline G9, ball valve Q11 is equipped in pipeline G9, And it is located at ball valve Q10 between the cold import that pipeline G9 and plate change, so that check-valves B (1-2) is located at pipeline G9 and high area user time Between water side, pipeline G10 is connected between Venturi tube import and water return pipeline G6, pipeline G10 is connect with water return pipeline G6 Locate on the water return pipeline G6 between safety valve (8) and ball valve Q2, is equipped with multifunctional pump (6) in pipeline G10, multifunctional pump outlet side Pipeline on be successively arranged multifunctional pump outlet non-return valve (5) and ball valve Q3.
- The heating system 2. mixed water according to claim 1 exchanges heat, it is characterised in that: further include pressure sensor, temperature biography Sensor and controller, wherein temperature sensor includes: to be installed on for measuring the T1 of supply water temperature on a water supply line G1, It is installed on the T3 on pipeline G2 for measurement plate heat exchange inlet temperature, is installed on pipeline G5 for measuring high area user for water temperature The T4 of degree is installed on the T5 for being used to measure user's return water temperature on water return pipeline G6 close to user's return water side, is installed on return pipe It is used to measure the T2 of return water temperature on road G6 close to backwater end, is installed on pipeline G3 for measuring low area user supply water temperature T6, pressure sensor include: to be installed on a water supply line G1 close to the P1 for being used to measure pressure of supply water for water end (W.E.), are installed on It is used to measure the P3 of Venturi tube inlet side pressure of supply water on water supply line G1 close to Venturi tube, is installed on pipeline G2 It is used to measure the P4 of Venturi exit side pressure of supply water close to Venturi tube, is installed on water return pipeline G6 and is used close to multifunctional pump In the P5 of measurement multifunctional pump inlet side pressure of return water, it is installed on water return pipeline G6 close to backwater end for measuring pressure of return water P2；Controller is adjusted for detecting all temperature and pressures and according to testing result real-time control flow control valve for water flow Amount.
- The heating system 3. mixed water according to claim 1 or 2 exchanges heat, it is characterised in that: when working in series system, ball Valve Q5, Q6, Q11 are closed, and ball valve Q7, Q8, Q9, Q10 are opened, it is primary supply water pass sequentially through Venturi tube, plate changes, low area user, Enter backwater end after high area user heat exchange.
- The heating system 4. mixed water according to claim 1 or 2 exchanges heat, it is characterised in that: when working in parallel way, ball Valve Q5, Q6, Q11 are opened, and ball valve Q7, Q8, Q9, Q10 are closed, and primary water supply passes sequentially through Venturi tube, parallel connection enters low area and uses After the area Hu Hegao user heat exchange, then enter backwater end through water return pipeline G6.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920064960.2U CN209540985U (en) | 2019-01-15 | 2019-01-15 | Mixed water heat exchange heating system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920064960.2U CN209540985U (en) | 2019-01-15 | 2019-01-15 | Mixed water heat exchange heating system |
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| CN209540985U true CN209540985U (en) | 2019-10-25 |
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| CN201920064960.2U Active CN209540985U (en) | 2019-01-15 | 2019-01-15 | Mixed water heat exchange heating system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110886682A (en) * | 2019-12-17 | 2020-03-17 | 内蒙古科技大学 | Mobile energy storage heat supply system and heat supply method |
| CN114440289A (en) * | 2021-12-28 | 2022-05-06 | 华电电力科学研究院有限公司 | Pipe network heat storage system based on heat supply network bypass injection pressure reduction and regulation and control method thereof |
| CN115218250A (en) * | 2022-07-25 | 2022-10-21 | 国能龙源蓝天节能技术有限公司 | Mixed water heat supply control method and control system |
-
2019
- 2019-01-15 CN CN201920064960.2U patent/CN209540985U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110886682A (en) * | 2019-12-17 | 2020-03-17 | 内蒙古科技大学 | Mobile energy storage heat supply system and heat supply method |
| CN114440289A (en) * | 2021-12-28 | 2022-05-06 | 华电电力科学研究院有限公司 | Pipe network heat storage system based on heat supply network bypass injection pressure reduction and regulation and control method thereof |
| CN114440289B (en) * | 2021-12-28 | 2022-11-01 | 华电电力科学研究院有限公司 | Pipe network heat storage system based on heat supply network bypass injection pressure reduction and regulation and control method thereof |
| CN115218250A (en) * | 2022-07-25 | 2022-10-21 | 国能龙源蓝天节能技术有限公司 | Mixed water heat supply control method and control system |
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