CN217978999U - Parallel composite air source heat pump heating system - Google Patents
Parallel composite air source heat pump heating system Download PDFInfo
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- CN217978999U CN217978999U CN202220648055.3U CN202220648055U CN217978999U CN 217978999 U CN217978999 U CN 217978999U CN 202220648055 U CN202220648055 U CN 202220648055U CN 217978999 U CN217978999 U CN 217978999U
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Abstract
The utility model discloses a parallel compound air source heat pump heating system aims at solving current heat pump heating system and can not realize not enough to different terminal form, different ambient temperature demand to different water supply temperature down. The utility model discloses an including controller, inlet tube, outlet pipe, heating with low ambient temperature air source CO 2 The heat pump unit and the conventional refrigerant low-environment-temperature air source heat pump unit are characterized in that a circulating water pump and an electric tee joint are arranged on a water inlet pipeA regulating valve, a water outlet pipe is provided with a temperature detector, and a low ambient temperature air source CO for heating 2 The heat pump unit and the conventional refrigerant low-environment-temperature air source heat pump unit are both connected with a water inlet branch pipe and a water outlet branch pipe, one end of an electric three-way regulating valve is connected with a water inlet pipe, the other two ends of the electric three-way regulating valve are respectively connected with the two water inlet branch pipes, and the two water outlet branch pipes are both connected with a water outlet pipe; the circulating water pump, the electric three-way regulating valve and the temperature detector are all electrically connected with the controller.
Description
Technical Field
The utility model relates to a heating technology, more specifically say that it relates to a parallel compound air source heat pump heating system.
Background
The low-ambient-temperature air source CO2 heat pump unit for heating has the remarkable characteristics of high water supply temperature, wide operating range, natural environment-friendly refrigerant and multiple purposes, and can still efficiently produce high-temperature heating hot water with the temperature of more than 70 ℃ under the working condition of ambient temperature of-30 ℃; under the same ambient temperature and water outlet temperature, the compression ratio of the air source CO2 heat pump system is far smaller than that of a conventional refrigerant, and based on the characteristic, the air source CO2 heat pump unit can stably heat and run at the ambient temperature of minus 30 ℃, and can also efficiently provide hot water for life and production at the temperature of 43 ℃.
The conventional refrigerant low-environment-temperature air source heat pump unit generally refers to a heat pump unit adopting industrial synthetic refrigerant, and common refrigerants include R410A, R134a, R407C and the like. Compared with a low-environment-temperature air source CO2 heat pump unit for heating, the lower the water supply temperature is, the lower the highest water supply temperature is, and the heating of a butt-joint heating radiator is difficult to realize; the operation range is narrow, and the lowest operation working condition is-20 ℃.
Due to the adoption of inconsistent terminal forms, the water supply temperature required by heating is not the same as the maximum, the water supply temperature required by the heating plate is higher, the lowest water supply temperature is generally set to be not lower than 60 ℃, the water supply temperature required by the fan coil and the floor radiation heating is relatively lower, the temperature is generally set to be 45 ℃, and the highest water supply temperature is not higher than 60 ℃; when the ambient temperature is lower than-20 ℃, the water supply temperature of the conventional refrigerant low ambient temperature air source heat pump is difficult to meet the requirement of most terminal form heating water supply temperature; and the tail end adopts a fan coil or floor radiation mode, and a low-environment-temperature air source CO2 heat pump unit for heating is used as a heating mode of a heat source, so that the energy consumption of high-temperature water supply can be caused, and the energy-saving requirement is not facilitated.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above insufficiency, the utility model provides a parallel compound air source heat pump heating system, it has realized the efficiency maximize and the economic optimization of air source heat pump heating simultaneously to different water supply temperature's demand under different terminal form, the different ambient temperature.
To solve as aboveThe technical problem is solved by the utility model, which adopts the following technical proposal: a parallel composite air source heat pump heating system comprises a controller, a water inlet pipe, a water outlet pipe and a low ambient temperature air source CO for heating 2 The heat pump unit and the conventional refrigerant low-ambient-temperature air source heat pump unit are characterized in that a circulating water pump and an electric three-way regulating valve are installed on a water inlet pipe, a temperature detector is installed on a water outlet pipe, and a low-ambient-temperature air source CO is used for heating 2 The heat pump unit and the conventional refrigerant low-environment-temperature air source heat pump unit are both connected with a water inlet branch pipe and a water outlet branch pipe, one end of an electric three-way regulating valve is connected with a water inlet pipe, the other two ends of the electric three-way regulating valve are respectively connected with the two water inlet branch pipes, and the two water outlet branch pipes are both connected with a water outlet pipe; the circulating water pump, the electric three-way regulating valve and the temperature detector are all electrically connected with the controller.
Low ambient temperature air source CO for heating 2 The heat pump unit can realize the operation under the temperature difference of large, high and lowest ambient temperature of-35 ℃, and is suitable for a heating system with a heating tail end provided with a radiator; the conventional refrigerant low-environment-temperature air source heat pump unit has the characteristics of small temperature difference, low water supply temperature and relatively narrow operation range (the environment temperature is more than 20 ℃ below zero), and is suitable for a heating system with a fan coil or floor radiation at the heating end. In a severe cold area and a heating system with a fan coil or floor radiation at the heating tail end, as the water supply temperature is about 45 ℃, the number of conventional refrigerant low-environment-temperature air source heat pump unit units can be properly increased, and meanwhile, an electric proportional regulating valve is adjusted according to the change of the environment temperature so as to ensure that the water supply temperature is not lower than 45 ℃ when the environment temperature is lower than-20 ℃; similarly, in the heating system using the radiator at the heating tail end in the severe cold area, the low ambient temperature air source CO for heating can be properly increased 2 The quantity of the heat pump units guarantees that the environment temperature is lower than-30 ℃ of water supply temperature requirement, and meanwhile, when the environment temperature is high, the characteristic that the water supply temperature required by the heating radiators is not high under the condition that the environment temperature is high is achieved by adjusting the electric three-way adjusting valve, and further the maximization of the energy efficiency of a heating heat source is achieved.
When the water-temperature adjusting device works, the temperature detector detects the water temperature of the water outlet pipe and transmits the water temperature data to the controller, and the controller adjusts the opening of the electric three-way adjusting valve and the flow of the circulating water pump according to the water temperature information, so that the flow of the two water inlet branch pipes is adjusted, and the water temperature of the water outlet pipe meets the working requirement. The parallel composite air source heat pump heating system meets the requirements on different water supply temperatures under different tail end forms and different environmental temperatures, and simultaneously achieves the energy efficiency maximization and the economic optimization of the air source heat pump heating.
Preferably, a frequency converter is electrically connected between the controller and the circulating water pump. The frequency converter is used for adjusting the flow of the circulating water pump, and heating energy-saving operation is realized on the premise of meeting heating requirements.
Preferably, the electric three-way regulating valve is an electric proportional regulating valve. The electric proportional control valve is convenient to adjust and control.
Preferably, the water inlet branch pipe and the water outlet branch pipe are both provided with water passing valves. The water-passing valve is convenient for realizing the on-off of the water inlet branch pipe and the water outlet branch pipe.
Preferably, one end of the water outlet pipe is connected with the soaking cylinder, the water outlet pipe is communicated with the lower position of the soaking cylinder, the soaking cylinder is connected with the water through pipe, the water through pipe extends downwards into the soaking cylinder, and the water outlet branch pipes are communicated with the water through pipe.
The water flow discharged from the water outlet branch pipe enters the heat equalizing cylinder to be mixed and then is sent into the water outlet pipe. The temperature of the water flow discharged by the two water outlet branch pipes is uniform after the water flow is mixed in the soaking cylinder, the water temperature detected by the temperature detector is more accurate and reliable, and the stable and reliable operation of the whole system is further realized.
Preferably, an exhaust plug is installed at the upper part in the soaking cylinder, an exhaust hole is formed in the exhaust plug, a positioning convex ring is arranged on the inner wall of the exhaust hole, a valve plate and a pre-tightening spring are installed in the exhaust hole, the upper end of the exhaust hole is connected with a spring seat, the pre-tightening spring abuts against the position between the spring seat and the valve plate, the valve plate is covered on the positioning convex ring in a sealing mode, a vent hole is formed in the edge of the valve plate, the exhaust plug is connected with a push rod, the push rod extends upwards out of the soaking cylinder, and a locking screw is connected between the push rod and the soaking cylinder.
When air is mixed in the circulating water flow, the pressure is increased in the heating process, and if the pressure cannot be relieved in time, great pressure impact is caused on the whole pipeline, so that the sealing performance is influenced. And among the technical scheme of this application, sneak into circulation rivers when the air, behind the pressure increase, with the valve plate jack-up that makes progress, pressure is outwards discharged through exhaust hole, blow vent, carries out the release, the air in the circulation rivers of discharging simultaneously. When the system does not work, the exhaust plug is pushed to move downwards through the push rod, so that air in the heat equalizing cylinder is exhausted, and the locking screw rotates to lock the push rod after the air is completely exhausted. Through this kind of structure setting can discharge the air in the circulating water stream, prevents that the too big sealing performance of influence of pressure.
Preferably, a position on the inner wall of the soaking cylinder, which is close to the lower part, is provided with a limit convex ring, and the lower end of the water pipe is lower than the limit convex ring. The limiting convex ring has a positioning effect on the vent plug and prevents the vent plug from moving over the head.
Preferably, the spring seat is threadedly coupled to the exhaust hole. The threaded connection is that the spring holder can rotate the adjusting position, and then adjusts the pretightning force of pretension spring to the valve plate.
Preferably, the upper end of the soaking cylinder is provided with a cover plate, the cover plate is provided with a vent hole, the push rod penetrates through the cover plate, and the locking screw is connected to the cover plate. The cover plate is arranged to facilitate the installation of parts in the soaking cylinder.
Compared with the prior art, the beneficial effects of the utility model are that: (1) The parallel composite air source heat pump heating system realizes the requirements on different water supply temperatures in different tail end forms and different environmental temperatures, and simultaneously realizes the energy efficiency maximization and the economic optimization of the air source heat pump heating; (2) In the working process of the heating system, air cannot be mixed in the circulating water flow, and the phenomenon that the sealing performance is influenced due to the fact that the air expands and the pressure in the pipeline is increased due to the fact that the temperature of the circulating water flow rises is prevented.
Drawings
Fig. 1 is a schematic structural view of embodiment 1 of the present invention;
fig. 2 is a schematic structural view of embodiment 2 of the present invention;
fig. 3 is a schematic structural view of a soaking cylinder according to embodiment 2 of the present invention;
in the figure: 1. controller, 2, inlet tube, 3, outlet pipe, 4, low ambient temperature air source CO for heating 2 The heat pump unit, 5, the conventional refrigerant low-environment-temperature air source heat pump unit, 6, a circulating water pump, 7, an electric three-way regulating valve, 8, a temperature detector, 9, a water inlet branch pipe, 10, a water outlet branch pipe, 11, a frequency converter, 12, a water passing valve, 13, a heat equalizing barrel, 14, a water passing pipe, 15, an exhaust plug, 16, an exhaust hole, 17, a positioning convex ring, 18, a valve plate, 19, a pre-tightening spring, 20, a spring seat, 21, a vent hole, 22, a push rod, 23, a locking screw, 24, a limiting convex ring, 25, a cover plate, 26, a vent hole, 27 and a transparent peep window.
Detailed Description
The technical solution of the present invention is further described in detail by the following specific embodiments in combination with the accompanying drawings:
example 1: a parallel composite air source heat pump heating system (see figure 1) comprises a controller 1, a water inlet pipe 2, a water outlet pipe 3 and a low ambient temperature air source CO for heating 2 The heat pump unit 4 and the conventional refrigerant low-ambient-temperature air source heat pump unit 5 are respectively provided with a circulating water pump 6 and an electric three-way regulating valve 7 on a water inlet pipe, a temperature detector 8 is arranged on a water outlet pipe, and low-ambient-temperature air source CO is used for heating 2 The heat pump unit and the conventional refrigerant low-environment-temperature air source heat pump unit are both connected with a water inlet branch pipe 9 and a water outlet branch pipe 10, one end of an electric three-way regulating valve is connected with a water inlet pipe, the other two ends of the electric three-way regulating valve are respectively connected with the two water inlet branch pipes, and the two water outlet branch pipes are both connected with a water outlet pipe; the circulating water pump, the electric three-way regulating valve and the temperature detector are all electrically connected with the controller.
The frequency converter 11 is electrically connected between the controller and the circulating water pump, and the electric three-way regulating valve is an electric proportional regulating valve. And the water inlet branch pipe and the water outlet branch pipe are respectively provided with a water through valve 12. The controller can adopt a single chip microcomputer or other types of controllers, the temperature detector is connected to the input end of the controller, the electric three-way regulating valve and the frequency converter are connected to the output end of the controller, and the frequency converter is connected with the circulating water pump. The heating end is connected between the water inlet pipe and the water outlet pipe, and then a circulating water path is formedAnd (5) structure. Low ambient temperature air source CO for heating 2 The heat pump unit and the conventional refrigerant low-environment-temperature air source heat pump unit are both in the prior art and are not developed any more. Low ambient temperature air source CO for heating in self-heating 2 The heat pump unit and the conventional refrigerant low-ambient-temperature air source heat pump unit are used for heating circulating water flow and utilizing low-ambient-temperature air source CO for heating 2 The heat pump unit and the conventional refrigerant low-environment-temperature air source heat pump unit have different characteristics, and the heating requirements under different environments are met.
When the water-temperature adjusting device works, the temperature detector detects the water temperature of the water outlet pipe and transmits the water temperature data to the controller, and the controller adjusts the opening of the electric three-way adjusting valve and the flow of the circulating water pump according to the water temperature information, so that the flow of the two water inlet branch pipes is adjusted, and the water temperature of the water outlet pipe meets the working requirement. The parallel composite air source heat pump heating system meets the requirements on different water supply temperatures under different tail end forms and different environmental temperatures, and simultaneously achieves the energy efficiency maximization and the economic optimization of the air source heat pump heating.
Example 2: a parallel compound air source heat pump heating system (see attached figures 2 and 3) is similar to the structure of embodiment 1, and mainly differs in that one end of a water outlet pipe in the embodiment is connected with a soaking cylinder 13, the water outlet pipe is communicated with the lower portion of the soaking cylinder, a water through pipe 14 is connected to the soaking cylinder, the water through pipe extends downwards into the soaking cylinder, and water outlet branch pipes are communicated with the water through pipe.
An exhaust plug 15 is arranged at the upper part in the soaking cylinder, an exhaust hole 16 is arranged on the exhaust plug, a positioning convex ring 17 is arranged on the inner wall of the exhaust hole, a valve plate 18 and a pre-tightening spring 19 are arranged in the exhaust hole, the upper end of the exhaust hole is connected with a spring seat 20, the pre-tightening spring is abutted between the spring seat and the valve plate, the valve plate is covered on the positioning convex ring in a sealing mode, a vent hole 21 is formed in the edge of the valve plate, a push rod 22 is connected to the exhaust plug, the push rod extends out of the soaking cylinder upwards, and a locking screw 23 is connected between the push rod and the soaking cylinder. The water service pipe passes through the air release plug and is sleeved with the air release plug in a sealing way. A limiting convex ring 24 is arranged on the inner wall of the heat equalizing barrel and close to the lower part, and the lower end of the water pipe is lower than the limiting convex ring. The spring holder and exhaust hole threaded connection are equipped with the through-hole with exhaust hole intercommunication on the spring holder. The upper end of the soaking cylinder is provided with a cover plate 25, the cover plate is provided with an air vent 26, the push rod penetrates through the cover plate, and the locking screw is connected on the cover plate. The side wall of the soaking cylinder is provided with a transparent peephole 27 which is convenient for observing whether air exists in the soaking cylinder. The other structure is the same as embodiment 1.
The water flow discharged from the water outlet branch pipe enters the heat equalizing cylinder to be mixed and then is sent into the water outlet pipe. The temperature of the water flow discharged by the two water outlet branch pipes is uniform after the water flow is mixed in the soaking cylinder, the water temperature detected by the temperature detector is more accurate and reliable, and the stable and reliable operation of the whole system is further realized.
When air is mixed in the circulating water flow, the pressure is increased in the heating process, and if the pressure cannot be relieved in time, great pressure impact is caused on the whole pipeline, so that the sealing performance is influenced. And among the technical scheme of this application, sneak into circulation rivers when the air, behind the pressure increase, with the valve plate jack-up that makes progress, pressure is outwards discharged through exhaust hole, blow vent, carries out the release, the air in the circulation rivers of discharging simultaneously. When the system does not work, the exhaust plug is pushed to move downwards through the push rod, so that air in the heat equalizing cylinder is exhausted, and the locking screw rotates to lock the push rod after the air is completely exhausted. Through this kind of structural arrangement can discharge the air in the circulation rivers, prevents that the too big sealing performance of influence of pressure.
The above-described embodiments are merely preferred and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (9)
1. A parallel composite air source heat pump heating system is characterized by comprising a controller, a water inlet pipe, a water outlet pipe and a low ambient temperature air source CO for heating 2 The heat pump unit and the conventional refrigerant low-ambient-temperature air source heat pump unit are characterized in that a circulating water pump and an electric three-way regulating valve are installed on a water inlet pipe, a temperature detector is installed on a water outlet pipe, and a low-ambient-temperature air source CO is used for heating 2 Heat pump unit and conventional refrigerant low-environment-temperature air source heat pump unitThe water inlet branch pipes and the water outlet branch pipes are connected to the upper part of the water inlet pipe, one end of the electric three-way regulating valve is connected with the water inlet pipe, the other two ends of the electric three-way regulating valve are respectively connected with the two water inlet branch pipes, and the two water outlet branch pipes are both connected with the water outlet pipe; the circulating water pump, the electric three-way regulating valve and the temperature detector are all electrically connected with the controller.
2. The system of claim 1, wherein the frequency converter is electrically connected between the controller and the circulating water pump.
3. The system of claim 1, wherein the electrically operated three-way regulating valve is an electrically operated proportional regulating valve.
4. The system of claim 1, wherein the inlet branch and the outlet branch are provided with water valves.
5. The parallel composite air source heat pump heating system of any one of claims 1 to 4, wherein one end of the water outlet pipe is connected with the soaking cylinder, the water outlet pipe is communicated with the lower part of the soaking cylinder, the soaking cylinder is connected with a water pipe, the water pipe extends downwards into the soaking cylinder, and the water outlet branch pipes are communicated with the water pipe.
6. The parallel composite air source heat pump heating system according to claim 5, wherein an exhaust plug is arranged at the upper part in the soaking cylinder, an exhaust hole is formed in the exhaust plug, a positioning convex ring is arranged on the inner wall of the exhaust hole, a valve plate and a pre-tightening spring are arranged in the exhaust hole, the upper end of the exhaust hole is connected with a spring seat, the pre-tightening spring is abutted between the spring seat and the valve plate, the valve plate is covered on the positioning convex ring in a sealing manner, an air vent is formed in the edge of the valve plate, a push rod is connected to the exhaust plug, the push rod extends upwards out of the soaking cylinder, and a locking screw is connected between the push rod and the soaking cylinder.
7. The parallel composite air source heat pump heating system of claim 6, wherein the inner wall of the soaking cylinder is provided with a limit convex ring near the lower part, and the lower end of the water pipe is lower than the limit convex ring.
8. The system of claim 6, wherein the spring seat is in threaded connection with the vent.
9. The parallel composite air source heat pump heating system of claim 6, wherein the top of the soaking cylinder is provided with a cover plate, the cover plate is provided with air holes, the push rod penetrates through the cover plate, and the locking screw is connected on the cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220648055.3U CN217978999U (en) | 2022-03-23 | 2022-03-23 | Parallel composite air source heat pump heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220648055.3U CN217978999U (en) | 2022-03-23 | 2022-03-23 | Parallel composite air source heat pump heating system |
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| Publication Number | Publication Date |
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| CN217978999U true CN217978999U (en) | 2022-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220648055.3U Active CN217978999U (en) | 2022-03-23 | 2022-03-23 | Parallel composite air source heat pump heating system |
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| CN (1) | CN217978999U (en) |
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- 2022-03-23 CN CN202220648055.3U patent/CN217978999U/en active Active
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