Variable loop coil pipe

Abstract

The utility model discloses a variable loop coil pipe which comprises a water supply main pipe, a water return main pipe, 2N water supply branch pipes, 2N water return branch pipes and N coil pipe sets, N is larger than or equal to 3, one coil pipe set comprises a first loop coil pipe and a second loop coil pipe, and the first loop coil pipe and the second loop coil pipe are connected with the water supply main pipe and the water return main pipe respectively. A first valve is installed on the water supply main pipe, when the first valve is closed, the water supply main pipe can only supply water to the first loop coil pipe, a second valve is installed on the water return main pipe, when the second valve is closed, the water return main pipe can only receive return water of the second loop coil pipe, and a communication pipe is connected between the water supply main pipe and the water return main pipe. After the second valve is closed, return water of the first loop coil pipe flows into the water supply main pipe connected with the second loop coil pipe through the communicating pipe, and a third valve is arranged on the communicating pipe. The variable loop coil pipe has a high-load operation mode and a low-load operation mode, and the operation energy consumption is reduced under the condition that the load requirement is met.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning and heating, and in particular to a variable circuit coil. Background Art

[0002] Central air conditioning is mainly used in air handling systems located inside buildings to provide a comfortable indoor environment, including humidity, temperature, control and distribution of fresh air, etc. Coils are widely used in air conditioning systems as a heat exchange device.

[0003] At present, the models and specifications of coils in air-conditioning boxes are designed according to the maximum load. They can meet the requirements under full load or high load conditions (such as winter and summer seasons), but under low load demand conditions (such as test runs or spring and autumn seasons), the cooling capacity or heating capacity they provide is higher than the required load, and it is necessary to reduce the cooling capacity or heating capacity by reducing the water flow.

[0004] The amount of water entering the coil was reduced by bypassing part of the water on site, but the energy consumption of the power transmission equipment (water pump) was not reduced. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a variable circuit coil.

[0006] In order to achieve the above-mentioned purpose of the utility model, the technical solution adopted by the utility model is: a variable circuit coil, including a water supply main, a return water main, 2N water supply branches, 2N return water branches and N groups of coil groups, N≥3, one group of the coil groups includes a first circuit coil and a second circuit coil, the first circuit coil and the second circuit coil are both connected to the water supply main through the water supply branch and to the return water main through the return water branch, a first valve member is installed on the water supply main, when the first valve member is closed, the water supply main can only supply water to the first circuit coil, a second valve member is installed on the return water main, when the second valve member is closed, the return water main can only receive the return water of the second circuit coil, a conducting pipe is connected between the water supply main and the return water main, when the second valve member is closed, the return water of the first circuit coil flows into the water supply main connected to the second circuit coil through the conducting pipe, and a third valve member is arranged on the conducting pipe.

[0007] Furthermore, the first loop coil and the second loop coil each have a water inlet and a water return port, the water inlet is connected to the water supply main pipe via the water supply branch pipe, and the water return port is connected to the water return main pipe via the water return branch pipe.

[0008] Further, the water inlet of the first circuit coil and the water return port of the second circuit coil are located at the same end, and the water return port of the first circuit coil and the water inlet of the second circuit coil are located at the same end.

[0009] Furthermore, the water supply main includes a first water supply section, a second water supply section and an intermediate water supply section, the first water supply section is connected to the water inlet of the first loop coil through N water supply branches, the second water supply section is connected to the water inlet of the second loop coil through N water supply branches, the intermediate water supply section is connected between the first water supply section and the second water supply section, and the first valve member is installed on the intermediate water supply section.

[0010] Furthermore, the water return main includes a first water return section, a second water return section and an intermediate water return section, the first water return section is connected to the water return port of the first circuit coil through N water return branches, the second water return section is connected to the water return port of the second circuit coil through N water return branches, the intermediate water return section is connected between the first water return section and the second water return section, and the second valve member is installed on the intermediate water return section.

[0011] Furthermore, two ends of the conducting pipe are respectively connected to the middle water supply section and the middle water return section.

[0012] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0013] The utility model can adjust the medium flow in the coil by adjusting the first valve member, the second valve member and the third valve member, so that the variable circuit coil has a high-load operation mode and a low-load operation mode. When the load demand is met, the operation frequency of the water pump is reduced, thereby reducing the operating energy consumption. The utility model is simple to operate and does not require additional instrument accessories, thereby improving convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, some of the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the structure of the variable circuit coil of the utility model. DETAILED DESCRIPTION

[0016] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0017] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0018] In this application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the utility model and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0019] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in this utility model can be understood according to specific circumstances.

[0020] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0021] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0022] Please refer to Figure 1 The utility model provides a variable loop coil, comprising a water supply main 1, a water return main 2, 2N water supply branches 3, 2N water return branches 4 and N groups of coil groups 5, N ≥ 3, one group of the coil groups 5 comprises a first loop coil 51 and a second loop coil 52, the first loop coil 51 and the second loop coil 52 are both connected to the water supply main 1 through the water supply branch 3 and connected to the water return main 2 through the water return branch 4, the water supply main 1 is installed with a first valve 6, when the first valve 6 is closed, the water supply main pipe 1 can only supply water to the first circuit coil 51, the return water main pipe 2 is installed with a second valve member 7, when the second valve member 7 is closed, the return water main pipe 2 can only receive the return water of the second circuit coil 52, a conducting pipe 8 is connected between the water supply main pipe 1 and the return water main pipe 2, when the second valve member 7 is closed, the return water of the first circuit coil 51 flows into the water supply main pipe 1 connected to the second circuit coil 52 through the conducting pipe 8, and a third valve member 9 is arranged on the conducting pipe 8.

[0023] Furthermore, the first loop coil 51 and the second loop coil 52 both have a water inlet and a water return port, the water inlet is connected to the water supply main 1 through the water supply branch pipe 3, and the water return port is connected to the water return main 2 through the water return branch pipe 4.

[0024] Further, the water inlet of the first circuit coil 51 and the water return port of the second circuit coil 52 are located at the same end, and the water return port of the first circuit coil 51 and the water inlet of the second circuit coil 52 are located at the same end.

[0025] Furthermore, the water supply main 1 includes a first water supply section, a second water supply section and an intermediate water supply section, the first water supply section is connected to the water inlet of the first loop coil 51 through N water supply branches 3, the second water supply section is connected to the water inlet of the second loop coil 52 through N water supply branches 3, the intermediate water supply section is connected between the first water supply section and the second water supply section, and the first valve member 6 is installed on the intermediate water supply section.

[0026] Furthermore, the return water main 2 includes a first return water section, a second return water section and an intermediate return water section, the first return water section is connected to the return water port of the first circuit coil 51 through N return water branches 4, the second return water section is connected to the return water port of the second circuit coil 52 through N return water branches 4, the intermediate return water section is connected between the first return water section and the second return water section, and the second valve member 7 is installed on the intermediate return water section.

[0027] Furthermore, two ends of the conducting pipe 8 are respectively connected to the middle water supply section and the middle water return section.

[0028] When the air conditioning load demand is high, the first valve 6 and the second valve 7 are opened, and the third valve 9 is closed. The medium enters the N first circuit coils 51 and the N second circuit coils 52 through the water supply main 1 and the water supply branch 3 respectively, and finally converges into the return branch 4 through the return branch 4 to complete the heat exchange.

[0029] When the air conditioning load demand is low, the first valve 6 and the second valve 7 are closed, and the third valve 9 is opened. The medium enters the N first loop coils 51 through the water supply main pipe 1 and the water supply branch pipe 3. After heat exchange in the first loop coils 51, the medium flows into the first return water section and flows into the second water supply section through the conducting pipe 8, and then enters the N second loop coils 52 for heat exchange again, and finally flows into the second return water section.

[0030] The utility model can adjust the medium flow in the coil by adjusting the first valve component 6, the second valve component 7 and the third valve component 9, so that the variable circuit coil has a high-load operation mode and a low-load operation mode. When the load demand is met, the operating frequency of the water pump is reduced, thereby reducing the operating energy consumption. The utility model is simple to operate and does not require additional instrument accessories, thereby improving convenience.

[0031] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to the above embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the above embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A variable circuit coil, characterized in that: The invention comprises a water supply main (1), a water return main (2), 2N water supply branch pipes (3), 2N water return branch pipes (4) and N groups of coil groups (5), N≥3, one group of the coil groups (5) comprising a first circuit coil (51) and a second circuit coil (52), the first circuit coil (51) and the second circuit coil (52) being connected to the water supply main (1) via the water supply branch pipe (3) and connected to the water return main (2) via the water return branch pipe (4), the water supply main (1) being provided with a first valve member (6), and the water supply main (1) being closed when the first valve member (6) is closed. The pipe (1) can only supply water to the first circuit coil (51); a second valve component (7) is installed on the return water pipe (2); when the second valve component (7) is closed, the return water pipe (2) can only receive the return water of the second circuit coil (52); a conducting pipe (8) is connected between the water supply pipe (1) and the return water pipe (2); when the second valve component (7) is closed, the return water of the first circuit coil (51) flows into the water supply pipe (1) connected to the second circuit coil (52) through the conducting pipe (8); and a third valve component (9) is arranged on the conducting pipe (8).

2. A variable circuit coil as claimed in claim 1, characterized in that: The first loop coil (51) and the second loop coil (52) both have a water inlet and a water return port, the water inlet is connected to the water supply main pipe (1) via the water supply branch pipe (3), and the water return port is connected to the water return main pipe (2) via the water return branch pipe (4).

3. A variable circuit coil as claimed in claim 2, characterized in that: The water inlet of the first circuit coil (51) and the water return port of the second circuit coil (52) are located at the same end, and the water return port of the first circuit coil (51) and the water inlet of the second circuit coil (52) are located at the same end.

4. A variable circuit coil as claimed in claim 3, characterized in that: The water supply main (1) comprises a first water supply section, a second water supply section and an intermediate water supply section, the first water supply section is connected to the water inlet of the first loop coil (51) through N water supply branch pipes (3), the second water supply section is connected to the water inlet of the second loop coil (52) through N water supply branch pipes (3), the intermediate water supply section is connected between the first water supply section and the second water supply section, and the first valve member (6) is installed on the intermediate water supply section.

5. A variable circuit coil as claimed in claim 4, characterized in that: The water return main (2) comprises a first water return section, a second water return section and an intermediate water return section, the first water return section is connected to the water return port of the first circuit coil (51) through N water return branch pipes (4), the second water return section is connected to the water return port of the second circuit coil (52) through N water return branch pipes (4), the intermediate water return section is connected between the first water return section and the second water return section, and the second valve member (7) is installed on the intermediate water return section.

6. A variable circuit coil as claimed in claim 5, characterized in that: The two ends of the conducting pipe (8) are respectively connected to the middle water supply section and the middle water return section.

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