Efficient and stable household dual-supply air conditioning system

Abstract

The utility model discloses an efficient and stable household dual-supply air-conditioning system which comprises an air source heat pump, a primary pump and a heat collection water tank, the heat collection water tank is connected with a wind disc pipeline and a floor heating pipeline in parallel, a wind disc tail end secondary pump is fixed in the wind disc pipeline, a floor heating tail end secondary pump is fixed in the floor heating pipeline, and the air disc tail end secondary pump and the floor heating tail end secondary pump are connected in parallel. The dual-combined supply system solves the problems that an existing dual-combined supply system is unstable in pressure, high in energy consumption and poor in applicability, only a wind disc assembly or a floor heating pipe can be used for temperature adjustment independently, the wind disc pipeline and the floor heating pipeline are arranged, the two pipelines can operate independently, the wind disc assembly and the floor heating pipe can operate independently, and therefore the energy consumption is reduced. Therefore, mixed opening or simultaneous opening of the air disc assembly and the floor heating pipe is achieved, two temperature adjusting modes are combined, and temperature adjusting is more efficient, more comfortable and more energy-saving.

Description

Technical Field

[0001] The utility model relates to the technical field of air-conditioning systems, in particular to an efficient and stable household dual-energy air-conditioning system. Background Art

[0002] The characteristic of the dual-generation system is that it can be used as a cooling source for air conditioning in summer and as a heat source for the floor heating system in winter. It can achieve the effect of warm in winter and cool in summer, replacing the traditional home system model of "central air conditioning cooling + wall-mounted boiler heating".

[0003] For example, the air conditioning and floor heating dual-supply system provided by Patent 202223037617.X, in the above patent, a regulating valve assembly is set to switch the water supply passage to achieve switching between air disk temperature control and floor heating temperature control. In this way, air disk temperature control can only be performed in summer and floor heating temperature control in winter. Air disk temperature control will produce a blowing feeling, noisy and not energy-saving, but the air disk temperature control efficiency is fast and not afraid of obstruction, while the floor heating temperature control efficiency is slow and afraid of obstruction, but its temperature control has no wind feeling and noise and is energy-saving. Therefore, air disk temperature control and floor heating temperature control can make up for each other's shortcomings. The technical solution provides an efficient and stable household dual-supply air-conditioning system, which combines air disk temperature control and floor heating temperature control to make the temperature control more efficient, comfortable and energy-saving. Utility Model Content

[0004] The purpose of the utility model is to provide an efficient and stable household dual-supply air-conditioning system. By arranging air coil pipelines and floor heating pipelines, the two pipelines can operate independently, so that the air coil assembly and the floor heating pipes can operate independently, thereby realizing the mixed opening or simultaneous opening of the air coil assembly and the floor heating pipes, thereby combining the two temperature control modes to make the temperature control more efficient, comfortable and energy-saving.

[0005] The utility model provides the following technical solutions: an efficient and stable household dual-energy air-conditioning system, comprising an air source heat pump, a primary pump and a heat collection tank, the heat collection tank is connected in parallel with an air coil pipeline and a floor heating pipeline, the air coil pipeline is fixed with an air coil terminal secondary pump, the floor heating pipeline is fixed with a floor heating terminal secondary pump, the air coil pipeline comprises a first water inlet pipe and a first water outlet pipe, the first water inlet pipe and the first water outlet pipe are both connected to the heat collection tank, a plurality of air coil assemblies are connected in parallel to the first water inlet pipe, and the plurality of air coils are connected to the heat collection tank. The components are all connected in parallel on the first water outlet pipe, the first water inlet pipe, the first water outlet pipe and any wind disc component form a loop, the secondary pump at the end of the wind disc is connected in series in the first water outlet pipe, the floor heating pipeline includes a second water inlet pipe and a second water outlet pipe, the second water inlet pipe and the second water outlet pipe are both connected to the heat collection tank, the other end of the second water inlet pipe is connected to a water distributor, the other end of the second water outlet pipe is connected to a water collector, a plurality of floor heating pipes are connected in parallel between the water distributor and the water collector, and the secondary pump at the end of the floor heating is connected in the second water outlet pipe.

[0006] In order to improve the heating efficiency, the floor heating pipe is a capillary pipe with an outer diameter of 12 mm and a wall thickness of 1.8 mm or an outer diameter of 10 mm and a wall thickness of 1.5 mm.

[0007] In order to prevent the main unit from operating with a high temperature difference, the flow rate of the primary pump is greater than the sum of the flow rates of the secondary pump at the end of the fan disc and the secondary pump at the end of the floor heating.

[0008] In order to reduce the energy consumption of the secondary pump and enable the secondary pump to adapt to the operation of multiple fan disk assemblies or multiple floor heating pipes, the primary pump is a fixed frequency pump, and the secondary pump at the end of the fan disk and the secondary pump at the end of the floor heating are both variable frequency pumps.

[0009] Compared with the prior art, the beneficial effect achieved by the utility model is: by setting up the air disk pipeline and the floor heating pipeline, the two pipelines can operate independently, so that the air disk assembly and the floor heating pipe can operate independently, thereby realizing the mixed opening or simultaneous opening of the air disk assembly and the floor heating pipe, thereby combining the two temperature control modes, making the temperature control more efficient, comfortable and energy-saving, and at the same time using the secondary pump at the end of the air disk and the secondary pump at the end of the floor heating to keep the pipeline pressure stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0011] Figure 1 It is a schematic diagram of the air conditioning system of the utility model;

[0012] Figure 2 It is a resistance meter of the capillary floor heating pipe of the utility model;

[0013] Figure 3 It is the relationship diagram between the energy efficiency ratio of air source heat pump and outdoor temperature and outlet water temperature;

[0014] In the figure: 1. air source heat pump; 2. primary pump; 3. heat collecting tank; 4. air disc pipeline; 41. secondary pump at the end of air disc; 42. air disc assembly; 43. first water inlet pipe; 44. first water outlet pipe; 5. floor heating pipeline; 51. water distributor; 52. floor heating pipe; 53. water collector; 54. secondary pump at the end of floor heating; 55. second water inlet pipe; 56. second water outlet pipe. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0016] See also Figure 1 The utility model provides a technical solution: an efficient and stable household dual-energy air conditioning system, including an air source heat pump 1, a primary pump 2 and a heat collection tank 3. A loop is formed between the air source heat pump 1 and the heat collection tank 3. The primary pump 2 is used to circulate heat between the two. The heat collection tank 3 is connected in parallel with an air coil pipeline 4 and a floor heating pipeline 5. A secondary pump 41 at the end of the air coil is fixed in the air coil pipeline 4. A secondary pump 54 at the end of the floor heating is fixed in the floor heating pipeline 5. The air coil assembly 42 is driven by the air coil pipeline 4 to For temperature adjustment, the secondary pump 41 at the end of the air disk is used to stabilize the pressure in the pipeline. The floor heating pipeline 5 allows hot water to be passed into the floor heating pipe 52 for temperature adjustment. The secondary pump 54 at the end of the floor heating is used to stabilize the pressure in the pipeline. The two pipelines can operate independently without affecting each other. In this way, the air disk assembly 42 and the floor heating pipe 52 can be mixed or opened at the same time, thereby meeting the use requirements of different rooms in large apartments or villas. The combined temperature adjustment of the air disk assembly 42 and the floor heating pipe 52 makes the temperature adjustment more efficient, comfortable and energy-saving.

[0017] The air disc pipeline 4 includes a first water inlet pipe 43 and a first water outlet pipe 44, both of which are connected to the heat collection tank 3. A plurality of air disc assemblies 42 are connected in parallel to the first water outlet pipe 44. The first water inlet pipe 43, the first water outlet pipe 44 and any air disc assembly 42 form a loop with the heat collection tank 3. Hot water or cold water enters the air disc assembly 42 for heat transfer. The secondary pump 41 at the end of the air disc is connected in series in the first water outlet pipe 44. By connecting a plurality of air disc assemblies 42 in parallel, the plurality of air disc assemblies 42 can be operated separately and independently to meet the individual temperature control requirements of different rooms.

[0018] The floor heating pipeline 5 includes a second water inlet pipe 55 and a second water outlet pipe 56, which are both connected to the heat collecting tank 3. The other end of the second water inlet pipe 55 is connected to a water distributor 51, and the other end of the second water outlet pipe 56 is connected to a water collector 53. A plurality of floor heating pipes 52 are connected in parallel between the water distributor 51 and the water collector 53. The liquid in the heat collecting tank 3 flows into different floor heating pipes 52 through the water distributor 51 to adjust the temperature of different rooms. Then the liquid in the floor heating pipes 52 flows into the water collector 53 again to collect the liquid. Finally, the collected liquid is discharged into the heat collecting tank 3 to circulate the liquid, thereby realizing independent temperature adjustment of a plurality of different floor heating pipes 52.

[0019] The floor heating pipe 52 is a capillary pipe with an outer diameter of 12mm and a wall thickness of 1.8mm or an outer diameter of 10mm and a wall thickness of 1.5mm. Floor heating with traditional pipe diameters and spacings often leads to poor heating effects because the heat source cannot provide water supply at the designed temperature. If the spacing between floor heating pipes is reduced and the temperature difference between the supply and return water of the floor heating is reduced, the above problems can be solved. The current main capillary floor heating pipe specifications are dn12*1.8 and dn10*1.5. These two commonly used floor heating pipe systems have corresponding different laying spacings and laying pipe lengths according to conventional laying methods. When the temperature difference of 5°C meets the heating capacity of 120w / m2, the flow rate and resistance of various floor heating terminals are calculated by hydraulic calculation software and organized into a table, such as Figure 2 As shown in the table, the floor heating terminal type is evaluated from the aspect of resistance. Capillary floor heating uses a pipe diameter of dn12*1.8mm, and the energy consumption of the distribution system is low. Of course, if dn10*1.5 is selected, the water resistance can be reduced by reducing the loop pipe length to increase the number of floor heating loops.

[0020] The dual-generation system uses capillary floor heating, that is, floor heating pipes with a diameter of DN12 or DN10. In addition to improving thermal stability, it also has a more outstanding energy-saving effect. The energy efficiency ratio (COP) of air source heat pump heating is closely related to the outlet water temperature, such as Figure 3 As shown, taking the ambient temperature of 5℃ as an example, when the outlet water temperature of the air source heat pump is 40℃, the COP is 3.5; when the outlet water temperature is 45℃, the COP is 3.2. The water temperature increased by 5℃, and the COP decreased by about 11%. When the outlet water temperature of the air source heat pump is heated, the main engine COP decreased by about 2.5% if the air source heat pump does not increase by 1℃. When the capillary floor heating is used, setting the water supply temperature to 40℃ or even lower can improve the heating efficiency of the heat pump.

[0021] The flow rate of the primary pump 2 is greater than the sum of the flow rates of the secondary pump 41 at the end of the fan disc and the secondary pump 54 at the end of the floor heating, so that the flow rate of the primary pump 2 can meet the simultaneous operation of the two circuits.

[0022] Since the pipeline between the air source heat pump 1 and the water collection tank 3 is very short, the resistance is very small, and there is no flow pressure difference change, the primary pump 2 is a fixed frequency pump, which reduces the cost. The secondary pump 41 at the end of the air disk and the secondary pump 54 at the end of the floor heating are both variable frequency pumps. The variable frequency pump is provided so that the power of the secondary pump can be adjusted according to the number of running air disk components 42 or the number of floor heating pipes 52, thereby reducing energy consumption.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An efficient and stable household dual-energy air conditioning system, comprising an air source heat pump, a primary pump and a heat collection tank, characterized in that: The heat collecting tank is connected in parallel with an air disc pipeline and a floor heating pipeline, a wind disc terminal secondary pump is fixed in the air disc pipeline, a floor heating terminal secondary pump is fixed in the floor heating pipeline, the air disc pipeline comprises a first water inlet pipe and a first water outlet pipe, the first water inlet pipe and the first water outlet pipe are both connected to the heat collecting tank, a plurality of air disc assemblies are connected in parallel to the first water outlet pipe, the air disc terminal secondary pump is connected in series in the first water outlet pipe, the floor heating pipeline comprises a second water inlet pipe and a second water outlet pipe, the second water inlet pipe and the second water outlet pipe are both connected to the heat collecting tank, the other end of the second water inlet pipe is connected to a water distributor, the other end of the second water outlet pipe is connected to a water collector, a plurality of floor heating pipes are connected in parallel between the water distributor and the water collector, and the floor heating terminal secondary pump is connected in the second water outlet pipe.

2. According to claim 1, a highly efficient and stable household dual-energy air conditioning system is characterized by: The floor heating pipe is a capillary pipe with an outer diameter of 12 mm and a wall thickness of 1.8 mm, or an outer diameter of 10 mm and a wall thickness of 1.5 mm.

3. According to claim 1, a highly efficient and stable household dual-energy air conditioning system is characterized by: The flow rate of the primary pump is greater than the sum of the flow rates of the secondary pump at the end of the fan disc and the secondary pump at the end of the floor heating.

4. According to claim 1, a highly efficient and stable household dual-energy air conditioning system is characterized in that: The primary pump is a fixed frequency pump, and the secondary pump at the end of the fan disc and the secondary pump at the end of the floor heating are both variable frequency pumps.

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