CN209960594U - Flow full-control type heat supply unit adopting double-tank separator - Google Patents
Flow full-control type heat supply unit adopting double-tank separator Download PDFInfo
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- CN209960594U CN209960594U CN201920609435.4U CN201920609435U CN209960594U CN 209960594 U CN209960594 U CN 209960594U CN 201920609435 U CN201920609435 U CN 201920609435U CN 209960594 U CN209960594 U CN 209960594U
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Abstract
The utility model provides an adopt flow full control type heat supply unit of double-tank separator, including heat source, heat source pump and heat source pump converter, heat consumer pump and heat consumer pump converter, tempering pump and tempering pump converter, heat consumer side pipe network water inlet interface and return water interface, flowmeter, unit controller and a plurality of temperature transmitter, pressure transmitter, still include double-tank separator, double-tank separator comprises two tank separators, two tank separators connect in parallel between secondary side pipe network supply channel and return water pipeline, separate the secondary side pipe network into heat source loop, tempering loop and heat consumer side loop, realize the separation of heat source flow, tempering flow and heat consumer side pipe network flow; the utility model has the advantages of the pipe network flow relatively independence and controllable of heat source flow, the flow that adjusts the temperature and hot user side makes it can replace traditional heat supply unit among the central heating system, when having promoted regulation and control efficiency, has practiced thrift electric energy and heat energy.
Description
Technical Field
The utility model belongs to the technical field of the heating leads to the air conditioner, the heating equipment in the heating plant of mainly used heating system specifically is an adopt the flow full control type heat supply unit of two jar separators.
Background
The regulation and control method adopted by the heat supply unit of the existing heat supply station is not appropriate, and if the two-network heat supply is regulated and controlled in a mode of controlling the flow of the primary side of the heat exchanger by a two-way valve, the instability of the first network heat supply is easily caused; if the two-network heat supply is regulated and controlled by adopting a mode that a three-way valve controls the flow of the primary side of the heat exchanger, the temperature return of the one network is easy to rise; the problem that the heat source flow and the pipe network flow at the heat user side are mutually influenced is caused, so that the heat source and the pipe network flow at the heat user side cannot operate for heat supply as required; in addition, the heat exchanger in the existing heat supply unit has large resistance, not only wastes electricity, but also causes insufficient lift of a circulating pump, cannot meet the operation requirement of eliminating hydraulic imbalance influence of large flow and small temperature difference of the two networks, and cannot realize the expansion of the heating area of the two networks; when the heat load is reduced, the flow rates of the heat source pump, the temperature regulating pump and the heat user pump cannot be reduced according to the requirement, so that the waste of electric quantity is caused; the adjustment of the existing heat supply unit is usually centralized quality adjustment of one-network and two-network constant flow, and the heat source is used for centrally adjusting heat, so that the adjustment mode is not scientific, and because the enclosure structures of heat users are different, the environmental temperatures are different, the unit pipe network and other conditions are different, if the heat exchange stations under different conditions are subjected to centralized quality adjustment, different heat load requirements of different heat supply stations are difficult to meet.
Disclosure of Invention
The invention aims to provide a flow full-control type heat supply unit, so that the heat source flow, the pipe network flow at a heat user side and the temperature regulation flow of the heat supply unit are independent, and each flow can be regulated and controlled completely according to requirements.
The technical scheme adopted by the invention for realizing the purpose is as follows:
a flow full-control type heat supply unit adopting a double-tank separator comprises a heat source, a heat source pump and heat source pump frequency converter, a heat user pump and heat user pump frequency converter, a temperature adjusting pump and temperature adjusting pump frequency converter, a heat user side pipe network water inlet interface, a water return interface, a flow meter, a unit controller, a plurality of temperature transmitters and pressure transmitters, and the double-tank separator is connected in parallel between a secondary side pipe network water supply pipeline and a water return pipeline to divide the secondary side pipe network into a heat source loop, a temperature adjusting loop and a heat user side loop to realize the separation of heat source flow, temperature adjusting flow and heat user side pipe network flow, wherein the water return pipeline of the heat source loop is provided with the heat source pump to realize the output of heat source heat and output the heat to the temperature adjusting loop, the heat source pump is connected with the heat source pump frequency converter, and the temperature adjusting pump is arranged on the water supply pipeline of the temperature adjusting, the heat is output to a heat user side loop from a heat source loop according to the heat load requirement of a heat user, a temperature adjusting pump frequency converter is connected to a temperature adjusting pump, a heat user pump is installed on the heat user side loop, the heat user pump outputs the heat to a user pipe network of the heat user side, and the heat is conveyed to a home of the heat user; the heat consumer pump is connected with a heat consumer pump frequency converter, flow meters are installed on a water return pipeline of the heat source loop and a water return pipeline of the heat consumer side pipe network, a pressure transmitter and a temperature transmitter are installed on a water supply pipeline and a water return pipeline of the heat source loop and a water supply pipeline and a water return pipeline of the heat consumer side pipe network, temperature transmitters are installed on a water supply pipeline and a water return pipeline of the temperature adjusting loop, the unit controller is respectively connected with the pressure transmitters, the temperature transmitters, the heat source pump frequency converter, the temperature adjusting pump frequency converter and the heat consumer pump frequency converter, and an outdoor temperature sensor arranged outdoors is further connected to the unit controller;
the heat source can be a boiler, a heat pump, a heat exchanger and solar equipment;
when the double-tank separator is vertically installed, an automatic exhaust valve is installed at the top of each tank separator, and a drain valve is installed at the bottom of each tank separator;
the diameter of each tank separator of the double-tank separator is twice of the diameter of the maximum pipeline of the connecting tank separator; the center of the inlet pipe of the connecting pipe on the high temperature side of the tank separator is at the upper 1/5 position of the tank separator, the interval 2/5 is the center position of the outlet pipe, the center of the outlet of the connecting pipe on the low temperature side of the tank separator is at the upper 2/5 position, and the interval 2/5 is the center position of the inlet pipe;
the tank separator may also be a cubic tank having a rectangular cross section, the area of the rectangular cross section being twice the sectional area of the connecting pipe.
The beneficial effect of this practicality is: (1) under the working condition of partial heat load, the heat source pump and the temperature regulating pump reduce the flow to realize electricity saving; (2) under the condition that the water power of a pipe network at the heat consumer side is imbalance or expansion, the heat consumer pump can increase the rotating speed to ensure that the flow of the heat consumer is sufficient; (3) the flow of the temperature adjusting pump is controlled according to the outdoor temperature to adjust the water supply temperature of the pipe network at the heat user side, so that the water supply temperature of the pipe network at the heat user side is changed along with the heat load, and heat supply according to needs is realized; (4) the independent heat source pump provides the required flow for the heat source, so that the efficiency and the safety of the heat source can be improved; (5) because the heat source flow, the temperature adjusting flow and the pipe network flow at the heat user side are all independently controllable, the heat supply unit is a flow full-control type heat supply unit.
Drawings
Fig. 1 and fig. 2 are schematic structural views of the present invention;
FIG. 1, heat source; 2. a heat source pump; 3. a frequency converter; 4. a heat source flow meter; 5. a heat source side tank separator blowoff valve; 6. a heat source side tank separator; 7. a heat source side tank separator exhaust valve; 8; a temperature regulating pump; 9. a tempering pump frequency converter; 10. a blowdown valve of the hot user side tank separator; 11 a hot user side tank separator; 12. a hot user side tank separator vent valve; 13. a heat user pump; 14. a heat user pump frequency converter; 15. a thermal user flow meter; 16. a water inlet interface of a hot user side pipe network; 17. a hot user side pipe network backwater interface; 18. a machine set controller; 19. an outdoor temperature transmitter; 20. a heat source water supply pressure transmitter; 21. a heat source water supply temperature transmitter; 22. a heat source backwater pressure transmitter; 23. a heat source backwater temperature transmitter; 24. a temperature transmitter for temperature adjustment and water supply; 25. a temperature transmitter for temperature adjustment and water supply; 26. a hot user water supply temperature transmitter; 27. a hot user water supply pressure transmitter; 28. a hot user return water temperature transmitter; 29. the hot user returns the water pressure transmitter.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
a flow full-control type heat supply unit adopting a double-tank separator is disclosed, as shown in figure 1 or 2, and comprises a heat source 1, a heat source pump 2 and a heat source pump frequency converter 3, a heat source flow meter 4, a temperature adjusting pump 8 and a temperature adjusting pump frequency converter 9, a heat user pump 13 and a heat user pump frequency converter 14, a heat user flow meter 15, a heat user side pipe network water inlet interface 16 and a heat user side pipe network water return interface 17, a unit controller 18, an outdoor temperature transmitter 19, a plurality of temperature transmitters and pressure transmitters, and also comprises the double-tank separator which is connected in parallel between a secondary side pipe network water supply pipeline and a water return pipeline to divide the secondary side pipe network into a heat source loop, a temperature adjusting loop and a heat user side loop to realize the separation of the heat source flow, the temperature adjusting flow and the heat user side pipe network flow, the heat source pump 2 is arranged on the water return pipeline of the heat source loop to realize the output of, the heat is output to a temperature adjusting loop, a heat source pump frequency converter 3 is connected to a heat source pump 2, the hot water flow of the heat source pump 2 is controlled through the heat source pump frequency converter 3 according to the heat load requirement so as to control the hot water output by a heat source, a temperature adjusting pump 8 is arranged on a water supply pipeline of the temperature adjusting loop to realize the purpose of outputting the heat from the heat source loop to a heat user side loop according to the heat load requirement of a heat user, a temperature adjusting pump frequency converter 9 is connected to the temperature adjusting pump 8, the water supply temperature of the heat user side pipeline network is changed through adjusting the temperature adjusting pump frequency converter 9 so as to realize the quality adjustment of the heat user, a heat user pump 13 is arranged on the heat user side loop, the heat user pump 13 realizes the purpose of outputting the heat to the heat user side pipeline network and conveys the heat to the heat user, a heat user pump frequency converter 14 is connected to the heat user pump 13, the flow, the constant pressure difference or variable pressure difference working condition operation is realized on the heat user side pipe network, and the quantity regulation requirement of the heat user side pipe network is met; a heat source flow meter 4, a heat source return water temperature transmitter 23 and a heat source return water pressure transmitter 22 are also installed on a return water pipeline of the heat source loop, a heat source water supply pressure transmitter 20 and a heat source water supply temperature transmitter 21 are installed on a water supply pipeline of the heat source loop, a heat user flow meter 15, a heat user return water pressure transmitter 29 and a heat user return water temperature transmitter 28 are also installed on a return water pipeline of the heat user side pipe network, a heat user water supply pressure transmitter 27 and a heat user water supply temperature transmitter 26 are installed on a water supply pipeline of the heat user side pipe network, a temperature adjusting water supply temperature transmitter 24 is installed on a water supply pipeline of the temperature adjusting loop, a temperature adjusting return water temperature transmitter 25 is installed on the return water pipeline, the unit controller 18 is respectively connected with each pressure transmitter, each temperature transmitter, each heat source pump frequency converter 3, each, the unit controller 18 is also connected with a three-phase power supply, a zero line, a ground wire and an outdoor temperature sensor 19 arranged outdoors, wherein the outdoor temperature sensor 19 needs to be arranged at a position where sunlight cannot be directly transmitted and is at least 0.5 meter away from the building.
The heat source 1 of the utility model can be a boiler, a heat pump, a heat exchanger and a solar device, if the heat source is changed into a cold source, the utility model can be a flow fully-controlled cooling unit without modification;
before starting the heat source pump, setting the flow of the heat source pump or the frequency of a frequency converter of the heat source pump according to the flow requirement of a heat source; then the rotating speed of the temperature adjusting pump is controlled according to the outdoor temperature, so that the heat load of a heat user is controlled, and the necessary heat running parameters of the unit controller are set; when the heat user pump is started, the pressure difference between the outlet water and the return water of the heat user pump needs to be set.
When the double-tank separator is vertically installed, as shown in fig. 1 or 2, an automatic exhaust valve 7 is installed at the top of the heat source side tank separator 6, and a drain valve 5 is installed at the bottom; the top of the hot user side tank separator 11 is provided with an automatic exhaust valve 12, and the bottom is provided with a drain valve 10;
the diameter of each tank separator of the double-tank separator is twice of the diameter of the maximum pipeline of the connecting tank separator; the center of the inlet pipe of the connecting pipe on the high temperature side of the tank separator is at the upper 1/5 position of the tank separator, the interval 2/5 is the center position of the outlet pipe, the center of the outlet of the connecting pipe on the low temperature side of the tank separator is at the upper 2/5 position, and the interval 2/5 is the center position of the inlet pipe;
the tank separator may also be a cubic tank having a rectangular cross section, the area of the rectangular cross section being twice the sectional area of the connecting pipe.
The utility model discloses during the operation, as shown in figure 1, the low temperature return water of heat consumer side pipe network return water interface 17 among the heat supply unit passes through heat consumer side tank separator 11 earlier, rethread heat consumer pump 13 pressurizes and provides the flow to the interface 16 that intakes of heat consumer side pipe network, also can be as shown in figure 2, the low temperature return water of heat consumer side pipe network return water interface 17 passes through heat consumer pump 13 earlier after pressurizeing, by providing the flow for the interface 16 that intakes of heat consumer side pipe network through heat consumer side tank separator 11, as shown in figure 1 or figure 2, heat source pump 2 provides the water circulation of heat source loop, its flow satisfies the needs of heat source efficiency and safety; the return water flow of the heat source loop is determined by the heat source pump 2, and the return water temperature of the heat source loop depends on the flow of the heat source pump 2 and the temperature regulating pump 8 and the return water temperature of the pipe network at the heat user side; the temperature adjusting pump 8 pumps high-temperature hot water from the heat source side tank separator 6, and the high-temperature hot water and low-temperature return water returned by the heat user side pipe network are mixed in the heat user side tank separator 11 to form water supply according with heat load of a heat user; the high-temperature water flow output by the temperature regulating pump 8 is matched with the low-temperature return water flow returned by the pipe network at the heat user side, the return water flow of the temperature regulating loop is determined by the temperature regulating pump 8, and the return water temperature depends on the return water temperature of the pipe network at the heat user side; the heat user pump 13 provides hot water meeting the heat load requirement for the pipe network at the heat user side, the heat user pump 13 provides flow required for eliminating hydraulic imbalance, the return water flow of the pipe network at the heat user side is determined by the heat user pump 13, and the return water temperature is the return water temperature of the pipe network at the heat user side.
The utility model discloses well unit controller 18 is according to the heat load demand, through the hot water flow of tempering pump 8 of tempering pump converter 9 control to the hot water volume of control heat source 1 output, the mixing ratio of the low temperature return water of control and heat consumer side pipe network return simultaneously, make the water supply temperature of heat consumer side pipe network change according to the change of heat load; the temperature adjusting pump 8 can change the water supply temperature of a pipe network at the side of a heat user under the control of the unit controller 18, and realizes quality adjustment on the heat user; the heat consumer pump 13 can control the flow of the heat consumer pump 13 under the control of the unit controller 18, so that the constant pressure difference or variable pressure difference working condition operation of a heat consumer side pipe network is realized, and the quantity regulation requirement of the heat consumer side is met.
The utility model has the biggest advantage that the heat source flow and the flow of the heat user side pipe network are completely independent, so the heat source flow aims at meeting the heat source requirement, and the flow of the heat user side pipe network aims at meeting the heat user requirement; each flow is completely controlled according to the requirement, and the control and regulation efficiency is higher.
Claims (6)
1. The utility model provides an adopt flow full control type heat supply unit of two jar separators which characterized in that: the system comprises a heat source, a heat source pump and heat source pump frequency converter, a heat user pump and heat user pump frequency converter, a temperature regulating pump and temperature regulating pump frequency converter, a heat user side pipe network water inlet interface, a water return interface, a flow meter, a unit controller, a plurality of temperature transmitters and pressure transmitters, and a double-tank separator, wherein the double-tank separator consists of two tank separators which are connected in parallel between a secondary side pipe network water supply pipeline and a water return pipeline to separate the secondary side pipe network into a heat source loop, a temperature regulating loop and a heat user side loop to realize the separation of heat source flow, temperature regulating flow and heat user side pipe network flow, the heat source pump is arranged on the water return pipeline of the heat source loop, the heat source pump is connected with the heat source pump frequency converter, the temperature regulating loop is provided with the temperature regulating pump on the water supply pipeline, the temperature regulating pump is connected with the temperature regulating pump frequency converter, and the heat user side loop is provided with the, the heat consumer pump is connected with a heat consumer pump frequency converter, flow meters are installed on a water return pipeline of the heat source loop and a water return pipeline of the heat consumer side pipe network, a pressure transmitter and a temperature transmitter are installed on a water supply pipeline and a water return pipeline of the heat source loop and a water supply pipeline and a water return pipeline of the heat consumer side pipe network, temperature transmitters are installed on a water supply pipeline and a water return pipeline of the temperature adjusting loop, and the unit controller is respectively connected with the pressure transmitters, the temperature transmitters, the heat source pump frequency converter, the temperature adjusting pump frequency converter and the heat consumer pump frequency converter; and the unit controller is also connected with an outdoor temperature sensor arranged outdoors.
2. The flow rate full-control type heating unit adopting the double-tank separator as claimed in claim 1, wherein: the heat source is a boiler, a heat pump, a heat exchanger or solar equipment.
3. The flow rate full-control type heating unit adopting the double-tank separator as claimed in claim 1, wherein: when the double-tank separator is vertically installed, an automatic exhaust valve is installed at the top of each tank separator, and a drain valve is installed at the bottom of each tank separator.
4. The flow rate full-control type heating unit adopting the double-tank separator as claimed in claim 1, wherein: the diameter of each tank separator of the double tank separator is twice the diameter of the largest pipe connecting the tank separators.
5. The flow rate full-control type heating unit adopting the double-tank separator as claimed in claim 1, wherein: the inlet pipe center of the high temperature side connection pipe of each tank separator of the double tank type separator is at the upper 1/5 position of the tank separator, the interval 2/5 is the outlet pipe center position, the outlet center of the low temperature side connection pipe of the tank separator is at the upper 2/5 position, and the interval 2/5 is the inlet pipe center position.
6. The flow rate full-control type heating unit adopting the double-tank separator as claimed in claim 1, wherein: the double-tank separator adopts a cubic tank with a rectangular section, and the area of the rectangular section is twice of the sectional area of the connecting pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920609435.4U CN209960594U (en) | 2019-04-30 | 2019-04-30 | Flow full-control type heat supply unit adopting double-tank separator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920609435.4U CN209960594U (en) | 2019-04-30 | 2019-04-30 | Flow full-control type heat supply unit adopting double-tank separator |
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| Publication Number | Publication Date |
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| CN209960594U true CN209960594U (en) | 2020-01-17 |
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| CN201920609435.4U Active CN209960594U (en) | 2019-04-30 | 2019-04-30 | Flow full-control type heat supply unit adopting double-tank separator |
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- 2019-04-30 CN CN201920609435.4U patent/CN209960594U/en active Active
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