Double-cavity 1.5-time hydraulic module and air source heat pump system

Abstract

The utility model belongs to the technical field of air source heat pumps, and particularly relates to a double-cavity 1.5-time hydraulic module which comprises a first inner container and a second inner container. The first inner container is provided with a water inlet and a water outlet; the second inner container is provided with a water inlet and a water outlet; the first inner container and the second inner container are further communicated through a pipeline, the pipeline is arranged outside the first inner container and the second inner container, and a one-way valve is arranged on the pipeline. The water flow direction allowed by the one-way valve is from the first inner container to the second inner container. A water outlet above the first inner container is connected with an indoor pump, and a water outlet below the second inner container is connected with a unit pump. The single-cavity buffer water tank is decomposed into the double-cavity 1.5-time hydraulic modules and the water pumps are integrated, so that the size of each sub-cavity water tank is reduced, the overall size is finally changed, the water pumps are installed in the hydraulic modules in advance, the installation adaptability is higher, and site construction is simpler.

Description

TECHNICAL FIELD

[0001] The utility model relates to air source heat pump technical field especially relates to a double -cavity 1.5 times hydraulic module and air source heat pump system. BACKGROUND

[0002] At present, air source heat pump system is widely used in the heating and refrigeration of house water circulation system because of its good energy-saving effect, for example: floor heating system, radiator system and fan coil system.

[0003] The existing air source heat pump system often cooperates with the buffer water tank, that is, the buffer water tank is added between the air source heat pump and the house water circulation system, which mainly increases the water quantity in the circulating waterway and reduces the frequent start and stop of the air source heat pump system caused by the small water quantity in the circulating waterway and the sharp temperature change, thereby increasing the service life of the air source heat pump system and reducing the power consumption.

[0004] But the existing buffer water tank is often large in size, and a large installation space needs to be reserved during installation, which is limited by the installation position, and the traditional buffer water tank is difficult to install in many narrow environments. UTILITY MODEL CONTENT

[0005] The utility model aims at solving the problem of large size of the buffer water tank of the existing air source heat pump system and difficult installation.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A double-cavity 1.5-time hydraulic module, comprising:

[0008] The first inner container and the second inner container are provided with a first water inlet and a first water outlet;

[0009] The first inner container is provided with a first water inlet and a first water outlet;

[0010] The second inner container is provided with a second water inlet and a second water outlet;

[0011] The first inner container and the second inner container are further communicated through a pipeline, and the pipeline is arranged outside the first inner container and the second inner container, and a one-way valve is arranged on the pipeline; The one-way valve allows the flow direction from the first inner container to the second inner container;

[0012] The first water outlet is provided with an indoor pump;

[0013] The second water outlet is provided with a unit pump.

[0014] Preferably,

[0015] The first inner container is a cylindrical pressure-bearing structure, and the second inner container is a cylindrical pressure-bearing structure.

[0016] Preferably,

[0017] The shell is further provided with the first inner container, the second inner container, the pipeline, the one-way valve, the indoor pump and the unit pump.

[0018] An air source heat pump system comprises:

[0019] The air source heat pump and the double-cavity 1.5-time hydraulic module are connected between the air source heat pump and a water circulation system.

[0020] Preferably, the first water inlet is connected with a water outlet of the air source heat pump, and the first water outlet is connected with a water inlet of the water circulation system through the indoor pump.

[0021] The second water inlet is connected with a water outlet of the water circulation system, and the second water outlet is connected with a water inlet of the air source heat pump through the unit pump.

[0022] Preferably, the water circulation system is a floor heating system, a radiator system or a fan coil system.

[0023] Compared with the prior art, the air source heat pump system has the following advantages:

[0024] The double-cavity 1.5-time hydraulic module of the utility model can be installed more flexibly than the traditional single-cavity buffer water tank, for example, two inner containers can be arranged in parallel, vertically or across an obstacle in the middle, thereby adapting to more narrow installation environments, and the installation of the double-cavity 1.5-time hydraulic module can be realized in many cases where the traditional buffer water tank cannot be installed. In addition, the water pump is integrated on the two inner containers, thereby reducing the on-site installation process and reducing the installation cost. The one-way valve is additionally arranged on the connecting pipeline of the first inner container and the second inner container, thereby solving the water mixing problem between the two inner containers, improving the system COP value and stability and further improving the energy-saving effect. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 A structure diagram of the double-cavity 1.5-time hydraulic module is provided for the utility model.

[0026] Figure 2 A structure diagram of the air source heat pump system is provided for the utility model.

[0027] In the drawing: 1, air source heat pump; 2, first inner container; 3, second inner container; 4, one-way valve; 5, indoor pump; 6, floor heating system; 7, fan coil system; 8, unit pump; 21, first water inlet; 22, first water outlet; 31, second water inlet; 32, second water outlet; 23, pipeline. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments will be described clearly and completely below in combination with the drawings in the embodiments. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0029] The embodiment of the double-cavity 1.5-time hydraulic module provided in the present application comprises Figure 1 as shown in the figure, which comprises:

[0030] a first inner container (2) and a second inner container (3);

[0031] The first inner container (2) is provided with a first water inlet (21) and a first water outlet (22);

[0032] The second inner container is provided with a second water inlet (31) and a second water outlet (32);

[0033] The first inner container (2) and the second inner container (3) are further connected through a pipeline (23) which is arranged outside the first inner container (2) and the second inner container (3), and a one-way valve (4) is arranged on the pipeline; the one-way valve (4) allows the flow from the first inner container (2) to the second inner container (3).

[0034] Through the above design, the existing single-cavity buffer water tank is designed as two inner containers, and the two inner containers are connected through a pipeline. In this way, the size of each single inner container is smaller than that of the single cavity in the case of maintaining the total water capacity unchanged. Therefore, in some narrow environments where the original single-cavity buffer water tank cannot be installed, the double-cavity 1.5-time hydraulic module of the present application can be installed. In addition, the two inner containers in the present application can be arranged horizontally side by side, vertically one above the other, or separately, which can adapt to various installation environments and have more installation flexibility than the existing single-cavity buffer water tank.

[0035] As a preferred embodiment, an indoor pump (5) can be further arranged on the first water outlet (22), and the indoor pump (5) is used to deliver the water in the first inner container (2) out of the inner container.

[0036] As a preferred embodiment, a unit pump (8) can be further arranged on the second water outlet (32), and the unit pump (8) is used to deliver the water in the second inner container (2) out of the inner container.

[0037] By arranging the water pump on the first inner container (2) and the second inner container (3), the steps of on-site installation can be further reduced, and the water pump does not need to be additionally installed on site, thereby reducing the installation difficulty.

[0038] The double-cavity 1.5-time hydraulic module described above, when specifically installed, can connect the first water inlet (21) with the water outlet of the air source heat pump (1), and the first water outlet (22) is connected with the water inlet of the indoor water circulation system through the indoor pump (5); the second water inlet (31) is connected with the water outlet of the indoor water circulation system, and the second water outlet (32) is connected with the water inlet of the air source heat pump (1) through the unit pump (8); after connecting the double-cavity 1.5-time hydraulic module between the air source heat pump (1) and the indoor water circulation system, an air source heat pump system as shown in Figure 2 Figure 2 The arrow direction is the water flow direction in the overall system, specifically, the water circulation system can be a floor heating system (6), a radiator system or a fan coil system (7), or as shown in Figure 2 The floor heating system (6) and the fan coil system (7) are connected in parallel.

[0039] As shown in Figure 2 After changing from a single cavity to a double inner container, due to the change in the internal waterway, it may cause the overall system to run unstably, or the coefficient of performance (COP) value to decrease, therefore, the application sets a pipeline (23) and a one-way valve (4) between the first inner container (2) and the second inner container (3) to communicate the two inner containers, which can reduce the negative effects.

[0040] Through the setting of the pipeline (23) and the one-way valve (4), 1.5-time mixed water or non-mixed water operation between the two inner containers can be realized, and the specific operation mode is as follows:

[0041] ​The once-circulation non-mixing water operation mode: when the air source heat pump system is running, the unit pump (8) delivers the heat conducting medium (generally water) in the second inner container (3) to the air source heat pump (1) for heating (or cooling), the heat conducting medium heated (or cooled) by the air source heat pump (1) flows into the first inner container (2), and the indoor pump (5) delivers the medium in the first inner container (2) to the floor heating system (6) and the fan coil system (7) for use, the circulated medium flows back to the second inner container (3), and then is delivered to the air source heat pump (1) by the unit pump (8), so that the heat conducting medium is circulated in the system to achieve the purpose of temperature adjustment. In this process, the first inner container (2) and the second inner container (3) are connected by the pipeline (23), and the one-way valve (4) is installed in the pipeline, so that the medium can only flow from the first inner container (2) to the second inner container (3) and cannot flow back. During the operation of the system, when the flow rate of the indoor pump (5) is greater than that of the unit pump (8), the internal pressure of the first inner container (2) will be less than that of the second inner container (3). If the one-way valve (4) is not installed in the pipeline (23), the medium flow in this direction cannot be prevented, the heat conducting medium in the second inner container (3) will flow to the first inner container (2) through the pipeline (23), and the mixing water phenomenon occurs. When the system is mixed, the system COP value will be reduced. The installation of the one-way valve (4) at this position can prevent this phenomenon and improve the system COP value.

[0042] 1.5 times mixed water circulation operation mode: when the air source heat pump system is running, the unit pump (8) delivers the heat conducting medium in the second inner container (3) to the air source heat pump (1) for heating (or refrigeration), the heat conducting medium heated (or refrigerated) by the air source heat pump (1) flows into the first inner container (2), and the indoor pump (5) delivers the medium in the first inner container (2) to the floor heating system (6) and the fan coil system (7) for use. The circulated medium flows back to the second inner container (3) and is delivered to the air source heat pump (1) by the unit pump (8). The heat conducting medium is circulated in the whole system to achieve the purpose of temperature regulation. In this process, if the floor heating system (6) and the fan coil system (7) are partially closed, the flow of the indoor pump (5) will decrease. When the flow is lower than the minimum working flow of the air source heat pump (1), the air source heat pump (1) will report a water flow fault. At this time, the flow of the unit pump (8) must be greater than the minimum flow required by the air source heat pump (1), and the system can operate normally. At this time, the first inner container (2) and the second inner container (3) are connected by the pipeline (23), and the one-way valve (4) is installed in the pipeline (23). The medium can only flow from the first inner container (2) to the second inner container (3) and cannot flow back. When the system enters the above working condition, the internal pressure of the first inner container (2) will be greater than that of the second inner container (3). The heat conducting medium in the first inner container (2) will flow to the second inner container (3) through the pipeline (23), forming a one-way medium circulation. The flow of the floor heating system (6) and the fan coil system (7) plus the circulation flow between the inner containers is greater than the minimum flow required by the air source heat pump (1). At this time, the fault caused by the low opening rate of the indoor heat dissipation equipment and the insufficient overall flow can be eliminated, thereby improving the stability of the system.

[0043] In addition, the shapes of the first inner container (2) and the second inner container (3) can be designed as needed, such as a cylindrical shape, a cuboid shape, or any other shape. At the same time, the specific shapes and sizes of the first inner container (2) and the second inner container (3) can be the same or different, and can be set according to actual installation needs.

[0044] As a preferred embodiment,

[0045] A shell can also be provided, and the first inner container (2), the second inner container (3), the pipeline (23), the one-way valve (4), the indoor pump (5), and the unit pump (8) are all arranged in the shell. In this way, the integration level can be improved, the components can form a whole, the protection of the components can be strengthened, and transportation and installation can be more convenient.

[0046] The above is only a preferred specific implementation of the present embodiment, but the protection scope of the present embodiment is not limited thereto. Any person skilled in the art can make equivalent replacements or changes to the technical solutions and the utility model concept of the present embodiment within the technical scope disclosed by the present embodiment, which should be covered within the protection scope of the present embodiment.

Claims

1. A dual cavity 1.5th hydraulic module characterized in that, Comprising: a first inner tank and a second inner tank; the first inner tank is provided with a first water inlet and a first water outlet; the second inner tank is provided with a second water inlet and a second water outlet; the first inner tank and the second inner tank are also communicated through a pipeline, the pipeline is provided outside the first inner tank and the second inner tank, and a one-way valve is arranged thereon; the one-way valve allows flow from the first inner tank to the second inner tank; the first water outlet is connected with an indoor pump; the second water outlet is connected with a unit pump.

2. The dual lumen 1.5 hydraulic module of claim 1, wherein, The first inner tank is a cylindrical pressure-bearing structure; the second inner tank is a cylindrical pressure-bearing structure.

3. The dual lumen 1.5 hydraulic module of claim 1, wherein, Further comprising an outer shell, the first inner tank, the second inner tank, the pipeline, the one-way valve, the indoor pump and the unit pump are arranged in the outer shell.

4. An air source heat pump system characterised in that, Comprising: an air source heat pump and the double-cavity 1.5-time hydraulic module of any one of claims 1-3; the double-cavity 1.5-time hydraulic module is connected between the air source heat pump and an indoor water circulation system.

5. The air source heat pump system of claim 4, wherein, The first water inlet is connected with a water outlet of the air source heat pump, and the first water outlet is connected with a water inlet of the water circulation system through the indoor pump; The second water inlet is connected with a water outlet of the water circulation system, and the second water outlet is connected with a water inlet of the air source heat pump through the unit pump.

6. The air source heat pump system of claim 5, wherein, The water circulation system is a floor heating system, a radiator system or a fan coil system.

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