Zero water shut-in device circulation testing device

Abstract

The application belongs to the technical field of household appliances, and particularly relates to a zero-cold-water equipment circulation test device, which comprises a first equipment, a hot water pipeline and a cold water pipeline, the first equipment is connected with a first end of the hot water pipeline and a first end of the cold water pipeline, a one-way valve is arranged between a second end of the hot water pipeline and a second end of the cold water pipeline, and a water use point is further arranged between the second end of the hot water pipeline and the second end of the cold water pipeline, and a first temperature measuring instrument is arranged at the water use point; a plurality of hot water branches are connected in parallel on the hot water pipeline, a first end of the hot water branch is connected with the hot water pipeline through a hot water branch water inlet pipe, and a second end of the hot water branch is connected with the hot water pipeline through a hot water branch water return pipe; a hot water stop valve is arranged on the hot water branch water inlet pipe, and a hot water control valve is arranged on the hot water pipeline between the hot water branch water inlet pipe and the hot water branch water return pipe. The application can obtain the pipeline length that can be covered by the first equipment, so that the total length of the pipeline can be controlled within a reasonable range during installation by the user.

Description

Technical Field

[0001] This application belongs to the field of household appliance technology, specifically relating to a zero-cold-water equipment circulation testing device. Background Technology

[0002] Water heaters are common household appliances that heat cold water to hot water within a certain time, providing convenience for users. However, when a user first turns on the tap, cold water remains in the hot water pipes, so hot water is not immediately available. To solve this problem, a zero-cold-water water heater has been developed. This heater uses a circulating pump to remove the residual cold water from the hot water pipes, allowing users to get hot water instantly upon turning on the tap. Therefore, zero-cold-water water heaters are gradually gaining popularity among users.

[0003] In related technical solutions, zero-cold-water water heaters require a certain length of hot and cold water pipes to be installed in a user's home to cover all water usage points. However, the circulation capacity of the circulation pump in a zero-cold-water water heater is limited. If the hot water pipes are too long, the circulation capacity of the pump may not be sufficient to match the pipe length, resulting in cold water flowing out when the user turns on the tap, thus reducing the user experience.

[0004] Therefore, if the actual pipe length that the circulating pump in a zero-cold-water water heater can cover can be measured in advance, users can control the total pipe length within a reasonable range during installation, thereby avoiding the situation where cold water flows out when the water is turned on. Summary of the Invention

[0005] In order to solve the above-mentioned problems in the related technology, namely, how to measure the actual pipe length that the circulating pump in a zero-cold-water water heater can cover, this application provides a zero-cold-water equipment circulation test device.

[0006] This application provides a zero-cold-water equipment circulation test device, including a first device with zero-cold-water function, a hot water pipeline and a cold water pipeline. The first device is connected to a first end of the hot water pipeline and a first end of the cold water pipeline. A one-way valve is provided between a second end of the hot water pipeline and a second end of the cold water pipeline. A water point is also provided between the second end of the hot water pipeline and the second end of the cold water pipeline. A first temperature measuring instrument is provided at the water point.

[0007] The hot water pipeline has multiple hot water branches connected in parallel. The first end of each hot water branch is connected to the hot water pipeline through a hot water branch inlet pipe, and the second end of each hot water branch is connected to the hot water pipeline through a hot water branch return pipe. A hot water shut-off valve is provided on the hot water branch inlet pipe, and a hot water control valve is provided on the hot water pipeline between the hot water branch inlet pipe and the hot water branch return pipe.

[0008] The zero-cold-water equipment circulation test device described above may optionally include a first hot water branch, a second hot water branch, a third hot water branch, and a fourth hot water branch.

[0009] The first end of the first hot water branch is connected to the hot water pipeline through the first hot water branch inlet pipe, and the second end of the first hot water branch is connected to the hot water pipeline through the first hot water branch return pipe; a first hot water shut-off valve is provided on the first hot water branch inlet pipe, and a first hot water control valve is provided on the hot water pipeline between the first hot water branch inlet pipe and the first hot water branch return pipe;

[0010] The second end of the second hot water branch is connected to the hot water pipeline through the inlet pipe of the second hot water branch, and the second end of the second hot water branch is connected to the hot water pipeline through the return pipe of the second hot water branch; a second hot water shut-off valve is provided on the inlet pipe of the second hot water branch, and a second hot water control valve is provided on the hot water pipeline between the inlet pipe of the second hot water branch and the return pipe of the second hot water branch.

[0011] The third end of the third hot water branch is connected to the hot water pipeline through the inlet pipe of the third hot water branch, and the second end of the third hot water branch is connected to the hot water pipeline through the return pipe of the third hot water branch; a third hot water shut-off valve is provided on the inlet pipe of the third hot water branch, and a third hot water control valve is provided on the hot water pipeline between the inlet pipe of the third hot water branch and the return pipe of the third hot water branch.

[0012] The fourth end of the fourth hot water branch is connected to the hot water pipeline through the inlet pipe of the fourth hot water branch, and the second end of the fourth hot water branch is connected to the hot water pipeline through the return pipe of the fourth hot water branch; a fourth hot water shut-off valve is provided on the inlet pipe of the fourth hot water branch, and a fourth hot water control valve is provided on the hot water pipeline between the inlet pipe of the fourth hot water branch and the return pipe of the fourth hot water branch.

[0013] In the zero-cold-water equipment circulation test device described above, optionally, the lengths of the first hot water branch, the second hot water branch, the third hot water branch, and the fourth hot water branch are the same or different.

[0014] Optionally, in the zero-cold-water equipment circulation test device described above, multiple cold-water branches are connected in parallel on the cold-water pipeline. The first end of each cold-water branch is connected to the cold-water pipeline through a cold-water branch inlet pipe, and the second end of each cold-water branch is connected to the cold-water pipeline through a cold-water branch return pipe. A cold-water shut-off valve is provided on the cold-water branch inlet pipe, and a cold-water control valve is provided on the cold-water pipeline between the cold-water branch inlet pipe and the cold-water branch return pipe.

[0015] The zero-cold-water equipment circulation test device described above may optionally include a first cold-water branch, a second cold-water branch, a third cold-water branch, and a fourth cold-water branch.

[0016] The first end of the first cold water branch is connected to the cold water pipeline through the first cold water branch inlet pipe, and the second end of the first cold water branch is connected to the cold water pipeline through the first cold water branch return pipe; a first cold water shut-off valve is provided on the first cold water branch inlet pipe, and a first cold water control valve is provided on the cold water pipeline between the first cold water branch inlet pipe and the first cold water branch return pipe.

[0017] The second end of the second cold water branch is connected to the cold water pipeline through the second cold water branch inlet pipe, and the second end of the second cold water branch is connected to the cold water pipeline through the second cold water branch return pipe; a second cold water shut-off valve is provided on the second cold water branch inlet pipe, and a second cold water control valve is provided on the cold water pipeline between the second cold water branch inlet pipe and the second cold water branch return pipe.

[0018] The third end of the third cold water branch is connected to the cold water pipeline through the third cold water branch inlet pipe, and the second end of the third cold water branch is connected to the cold water pipeline through the third cold water branch return pipe; a third cold water shut-off valve is provided on the third cold water branch inlet pipe, and a third cold water control valve is provided on the cold water pipeline between the third cold water branch inlet pipe and the third cold water branch return pipe.

[0019] The fourth end of the fourth cold water branch is connected to the cold water pipeline through the fourth cold water branch inlet pipe, and the second end of the fourth cold water branch is connected to the cold water pipeline through the fourth cold water branch return pipe; a fourth cold water shut-off valve is provided on the fourth cold water branch inlet pipe, and a fourth cold water control valve is provided on the cold water pipeline between the fourth cold water branch inlet pipe and the fourth cold water branch return pipe.

[0020] In the zero-cold-water equipment circulation test device described above, optionally, the lengths of the first cold-water branch, the second cold-water branch, the third cold-water branch, and the fourth cold-water branch may be the same or different.

[0021] Optionally, in the zero-cold-water equipment circulation test device described above, the first temperature measuring instrument is disposed at the second end of the hot water pipe and / or the second end of the cold water pipe.

[0022] Optionally, in the zero-cold-water equipment circulation test device described above, a second temperature measuring instrument is also provided on the cold-water pipeline located between the return pipe of the fourth cold-water branch and the second end of the cold-water pipeline.

[0023] Optionally, the zero-cold-water equipment circulation test device described above may also include a support frame, with multiple hot water branches and multiple cold water branches all wound around the support frame, and the hot water pipes and cold water pipes respectively arranged on both sides of the support frame.

[0024] As described above, the zero-cold-water equipment circulation test device may optionally include a support frame comprising four columns, with the tops of two adjacent columns connected by a first crossbeam and the lower parts of two adjacent columns connected by a second crossbeam; wherein, two first partition beams are connected between two opposing first crossbeams, and two second partition beams are connected between two opposing second crossbeams, with the two first partition beams and the two second partition beams corresponding one-to-one, and two partition columns connected to the two ends of the opposing first partition beams and the two ends of the second partition beams respectively;

[0025] Multiple hot water pipes are all wound around the first partition beam, the second partition beam, the first crossbeam, and the second crossbeam on the side closest to the hot water pipes;

[0026] Multiple cold water pipes are all wound around the first partition beam, the second partition beam, the first crossbeam and the second crossbeam on the side closest to the cold water pipes.

[0027] Those skilled in the art will understand that the embodiments of this application provide a zero-cold-water equipment circulation test device, including a first device with zero-cold-water function, a hot water pipeline and a cold water pipeline. The first device is connected to the first end of the hot water pipeline and the first end of the cold water pipeline. A one-way valve is provided between the second end of the hot water pipeline and the second end of the cold water pipeline. A water point is also provided between the second end of the hot water pipeline and the second end of the cold water pipeline, and a first temperature measuring instrument is provided at the water point. Multiple hot water branches are connected in parallel on the hot water pipeline. The first end of the hot water branch is connected to the hot water pipeline through a hot water branch inlet pipe, and the second end of the hot water branch is connected to the hot water pipeline through a hot water branch return pipe. A hot water shut-off valve is provided on the hot water branch inlet pipe, and a hot water control valve is provided on the hot water pipeline between the hot water branch inlet pipe and the hot water branch return pipe. With the above settings, this application can change the total length of the hot water pipeline by selecting different hot water shut-off valves and hot water control valves. Combined with the temperature value fed back by the first temperature measuring instrument and the basic parameters of the water pump in the first device, the length of the pipeline that the first device can cover can be obtained. This makes it easier for users to control the total length of the pipeline within a reasonable range during installation and avoid the situation where cold water flows out when the water outlet is opened. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of a zero-cold-water equipment circulation test device provided in one embodiment of this application;

[0030] Figure 2 This is a simplified structural diagram of a zero-cold-water equipment circulation test device provided in one embodiment of this application.

[0031] Figure label:

[0032] 10 - First Equipment;

[0033] 20-Hot water pipe; 210-First hot water branch; 211-First hot water branch inlet pipe; 212-First hot water branch return pipe; 213-First hot water shut-off valve; 214-First hot water control valve; 220-Second hot water branch; 221-Second hot water branch inlet pipe; 222-Second hot water branch return pipe; 223-Second hot water shut-off valve; 224-Second hot water control valve; 230-Third hot water branch; 231-Third hot water branch inlet pipe; 232-Third hot water branch return pipe; 233-Third hot water shut-off valve; 234-Third hot water control valve; 240-Fourth hot water branch; 241-Fourth hot water branch inlet pipe; 242-Fourth hot water branch return pipe; 243-Fourth hot water shut-off valve; 244-Fourth hot water control valve;

[0034] 30-Cold water pipe; 31-Inlet; 310-First cold water branch; 311-Inlet pipe of first cold water branch; 312-Return pipe of first cold water branch; 313-First cold water shut-off valve; 314-First cold water control valve; 320-Second cold water branch; 321-Inlet pipe of second cold water branch; 322-Return pipe of second cold water branch; 323-Second cold water shut-off valve; 324-Second cold water control valve; 330-Third cold water branch; 331-Inlet pipe of third cold water branch; 332-Return pipe of third cold water branch; 333-Third cold water shut-off valve; 334-Third cold water control valve; 340-Fourth cold water branch; 341-Inlet pipe of fourth cold water branch; 342-Return pipe of fourth cold water branch; 343-Fourth cold water shut-off valve; 344-Fourth cold water control valve;

[0035] 40 - Check valve; 41 - Point of use; 42 - First temperature measuring instrument; 43 - Mixing valve; 44 - Second temperature measuring instrument;

[0036] 50 - Support; 510 - Column; 520 - First crossbeam; 530 - Second crossbeam; 540 - First partition beam; 550 - Second partition beam; 560 - Partition column. Detailed Implementation

[0037] In related technical solutions, zero-cold-water water heaters require a certain length of hot and cold water pipes to cover all water usage points during installation in a user's home. However, the circulation pump in a zero-cold-water water heater has a limited circulation capacity. If the hot water pipes are too long, the circulation pump's capacity may not be sufficient to match the pipe length, resulting in cold water flowing out when the user turns on the tap, thus reducing the user experience. Therefore, if the actual pipe length that the circulation pump in a zero-cold-water water heater can cover can be measured in advance, the user can control the total pipe length within a reasonable range during installation, thereby avoiding the situation where cold water flows out when the tap is turned on.

[0038] In view of this, the embodiments of this application aim to provide a zero-cold-water equipment circulation testing device. Multiple hot water branches are connected in parallel on the hot water pipeline of a first device with zero-cold-water function. The first end of each hot water branch is connected to the hot water pipeline via a hot water branch inlet pipe, and the second end of each hot water branch is connected to the hot water pipeline via a hot water branch return pipe. A hot water shut-off valve is provided on the hot water branch inlet pipe, and a hot water control valve is provided on the hot water pipeline between the hot water branch inlet pipe and the hot water branch return pipe. A first temperature measuring instrument is installed near the point of use on the hot water pipeline. Thus, different hot water shut-off valves and hot water control valves can be selected to change the total length of the hot water pipeline. By combining the temperature value fed back by the first temperature measuring instrument and the basic parameters of the water pump in the first device, the length of pipeline that the first device can cover can be determined. This allows users to control the total length of the pipeline within a reasonable range during installation, preventing cold water from flowing out when the water outlet is opened.

[0039] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0040] Figure 1 This is a schematic diagram of a zero-cold-water equipment circulation test device provided in an embodiment of this application.

[0041] Please refer to Figure 1This embodiment provides a zero-cold-water equipment circulation testing device, including a first device 10 with zero-cold-water function, a hot water pipe 20, and a cold water pipe 30. The first device 10 can be a water heater, etc. The first device 10 is connected to the first end of the hot water pipe 20 and the first end of the cold water pipe 30. An inlet 31 is provided on the cold water pipe 30 near the first end to allow for the replenishment of cold water and the discharge of hot water. A one-way valve 40 is provided between the second end of the hot water pipe 20 and the second end of the cold water pipe 30 to ensure that hot water can flow from the hot water pipe 20 to the cold water pipe 30, but cold water cannot flow from the cold water pipe 30 to the hot water pipe 20. A water point 41 is also provided between the second end of the hot water pipe 20 and the second end of the cold water pipe 30. The water point 41 is connected in parallel with the one-way valve 40, and a first temperature measuring instrument 42 is provided at the water point 41 to measure the temperature of the hot water at the water point 41. In this embodiment, a mixing valve 43 is also provided on the branch line connecting the water point 41. During the test, the mixing valve 43 is in the closed state, thereby ensuring that all hot water flows to the cold water pipeline 30 through the one-way valve 40.

[0042] In this embodiment, multiple hot water branches are connected in parallel to the hot water pipe 20. The first end of each hot water branch is connected to the hot water pipe 20 through a hot water branch inlet pipe, and the second end of each hot water branch is connected to the hot water pipe 20 through a hot water branch return pipe, so that hot water flows through the hot water branch and then back to the hot water pipe 20. A hot water shut-off valve is provided on the inlet pipe of each hot water branch, which can control whether the hot water in the hot water pipe 20 flows into the corresponding hot water branch. A hot water control valve is provided on the hot water pipe 20 between the inlet pipe and the return pipe of each hot water branch, which can control whether the hot water in the hot water pipe 20 flows into the corresponding hot water branch or remains within the hot water pipe 20.

[0043] Through the above settings, this embodiment can change the total length of the hot water pipe 20 by selecting different hot water shut-off valves and hot water control valves. Combined with the temperature value fed back by the first temperature measuring instrument 42 and the basic parameters of the water pump in the first device 10, the pipe length that the first device 10 can cover can be determined. This allows users to control the total pipe length within a reasonable range during installation, preventing cold water from flowing out when the water outlet is opened. For example, a preset temperature for the water outlet 41 can be set. When the temperature measured by the first temperature measuring instrument 42 is greater than or equal to the preset temperature, the time it takes for hot water to flow to the water outlet 41 can be determined using the basic parameters of the water pump and the corresponding total length of the hot water pipe 20. By comparing this time with the preset time, it can be determined whether the total length of the hot water pipe 20 is within a reasonable range.

[0044] In this embodiment, the number of hot water branches can be set according to actual needs, such as two, three, four, or five. In one possible implementation, the multiple hot water branches in this embodiment include a first hot water branch 210, a second hot water branch 220, a third hot water branch 230, and a fourth hot water branch 240.

[0045] The first end of the first hot water branch 210 is connected to the hot water pipe 20 through the first hot water branch inlet pipe 211, and the second end of the first hot water branch 210 is connected to the hot water pipe 20 through the first hot water branch return pipe 212; a first hot water shut-off valve 213 is provided on the first hot water branch inlet pipe 211, and a first hot water control valve 214 is provided on the hot water pipe 20 between the first hot water branch inlet pipe 211 and the first hot water branch return pipe 212.

[0046] The second end of the second hot water branch 220 is connected to the hot water pipe 20 through the second hot water branch inlet pipe 221, and the second end of the second hot water branch 220 is connected to the hot water pipe 20 through the second hot water branch return pipe 222; a second hot water shut-off valve 223 is provided on the second hot water branch inlet pipe 221, and a second hot water control valve 224 is provided on the hot water pipe 20 between the second hot water branch inlet pipe 221 and the second hot water branch return pipe 222.

[0047] The third end of the third hot water branch 230 is connected to the hot water pipe 20 through the third hot water branch inlet pipe 231, and the second end of the third hot water branch 230 is connected to the hot water pipe 20 through the third hot water branch return pipe 232; a third hot water shut-off valve 233 is provided on the third hot water branch inlet pipe 231, and a third hot water control valve 234 is provided on the hot water pipe 20 between the third hot water branch inlet pipe 231 and the third hot water branch return pipe 232.

[0048] The fourth end of the fourth hot water branch 240 is connected to the hot water pipe 20 through the fourth hot water branch inlet pipe 241, and the second end of the fourth hot water branch 240 is connected to the hot water pipe 20 through the fourth hot water branch return pipe 242; a fourth hot water shut-off valve 243 is provided on the fourth hot water branch inlet pipe 241, and a fourth hot water control valve 244 is provided on the hot water pipe 20 between the fourth hot water branch inlet pipe 241 and the fourth hot water branch return pipe 242.

[0049] Furthermore, in this embodiment, the lengths of the first hot water branch 210, the second hot water branch 220, the third hot water branch 230, and the fourth hot water branch 240 may be the same or different. For example, the length of the first hot water branch 210 can be 10 meters, the length of the second hot water branch 220 can be 20 meters, the length of the third hot water branch 230 can be 20 meters, and the length of the fourth hot water branch 240 can be 50 meters. By controlling the opening and closing of different shut-off valves, this application can realize the variation of the hot water pipeline 20 with various lengths such as 10 meters, 30 meters, 50 meters, 70 meters, and 100 meters.

[0050] In one possible implementation, the cold water pipeline 30 of this embodiment has multiple cold water branches connected in parallel. The first end of the cold water branch is connected to the cold water pipeline 30 through the cold water branch inlet pipe, and the second end of the cold water branch is connected to the cold water pipeline 30 through the cold water branch return pipe. A cold water shut-off valve is provided on the cold water branch inlet pipe, and a cold water control valve is provided on the cold water pipeline 30 between the cold water branch inlet pipe and the cold water branch return pipe.

[0051] With the above settings, this application can change the total length of the cold water pipeline 30 by selecting different cold water shut-off valves and cold water control valves. Combining the basic parameters of the water pump in the first device 10, the total length of the hot water pipeline 20, and the total length of the cold water pipeline 30, the water circulation time within the system can be obtained.

[0052] The number of cold water branches in this embodiment can be set according to actual needs, such as two, three, four, or five. Specifically, the multiple cold water branches in this embodiment include a first cold water branch 310, a second cold water branch 320, a third cold water branch 330, and a fourth cold water branch 340.

[0053] The first end of the first cold water branch 310 is connected to the cold water pipeline 30 through the first cold water branch inlet pipe 311, and the second end of the first cold water branch 310 is connected to the cold water pipeline 30 through the first cold water branch return pipe 312; a first cold water shut-off valve 313 is provided on the first cold water branch inlet pipe 311, and a first cold water control valve 314 is provided on the cold water pipeline 30 between the first cold water branch inlet pipe 311 and the first cold water branch return pipe 312.

[0054] The second end of the second cold water branch 320 is connected to the cold water pipeline 30 through the second cold water branch inlet pipe 321, and the second end of the second cold water branch 320 is connected to the cold water pipeline 30 through the second cold water branch return pipe 322; a second cold water shut-off valve 323 is provided on the second cold water branch inlet pipe 321, and a second cold water control valve 324 is provided on the cold water pipeline 30 between the second cold water branch inlet pipe 321 and the second cold water branch return pipe 322.

[0055] The third end of the third cold water branch 330 is connected to the cold water pipeline 30 through the third cold water branch inlet pipe 331, and the second end of the third cold water branch 330 is connected to the cold water pipeline 30 through the third cold water branch return pipe 332; a third cold water shut-off valve 333 is provided on the third cold water branch inlet pipe 331, and a third cold water control valve 334 is provided on the cold water pipeline 30 between the third cold water branch inlet pipe 331 and the third cold water branch return pipe 332.

[0056] The fourth end of the fourth cold water branch 340 is connected to the cold water pipeline 30 through the fourth cold water branch inlet pipe 341, and the second end of the fourth cold water branch 340 is connected to the cold water pipeline 30 through the fourth cold water branch return pipe 342; a fourth cold water shut-off valve 343 is provided on the fourth cold water branch inlet pipe 341, and a fourth cold water control valve 344 is provided on the cold water pipeline 30 between the fourth cold water branch inlet pipe 341 and the fourth cold water branch return pipe 342.

[0057] Furthermore, in this embodiment, the lengths of the first cold water branch 310, the second cold water branch 320, the third cold water branch 330, and the fourth cold water branch 340 may be the same or different. For example, the length of the first cold water branch 310 can be 10 meters, the length of the second cold water branch 320 can be 20 meters, the length of the third cold water branch 330 can be 20 meters, and the length of the fourth cold water branch 340 can be 50 meters. By controlling the opening and closing of different shut-off valves, this application can realize the variation of the cold water pipeline 30 at various lengths such as 10 meters, 30 meters, 50 meters, 70 meters, and 100 meters.

[0058] Optionally, in this embodiment, the first temperature measuring instrument 42 is located at the second end of the hot water pipe 20 and / or the second end of the cold water pipe 30. For example, a first temperature measuring instrument 42 can be installed at the second end of both the hot water pipe 20 and the second end of the cold water pipe 30. By taking the average temperature of the two first temperature measuring instruments 42 as the temperature value of the water point 41, it is beneficial to reduce errors.

[0059] Optionally, in this embodiment, a second temperature measuring instrument 44 is also provided on the cold water pipe 30 located between the return water pipe 342 of the fourth cold water branch and the second end of the cold water pipe 30. The second temperature measuring instrument 44 can measure the temperature of the circulated water.

[0060] Figure 2 This is a simplified structural diagram of a zero-cold-water equipment circulation testing device provided in one embodiment of this application. Please refer to... Figure 2In one possible implementation, this embodiment further includes a support 50, with multiple hot water branches and multiple cold water branches wound around the support 50. The hot water pipe 20 and the cold water pipe 30 are respectively arranged on both sides of the support 50. By setting the support 50, the space occupied by the hot water pipe 20 and the cold water pipe 30 can be reduced, thereby helping to reduce the overall size of the device.

[0061] Specifically, such as Figure 2 As shown, the support frame 50 includes four uprights 510, which support the entire support frame 50. The tops of two adjacent uprights 510 are connected by a first crossbeam 520, and the lower parts of two adjacent uprights 510 are connected by a second crossbeam 530. Two first partition beams 540 are connected between two opposing first crossbeams 520, and two second partition beams 550 are connected between two opposing second crossbeams 530. The two first partition beams 540 and the two second partition beams 550 correspond one-to-one. Both the first partition beams 540 and the second partition beams 550 are parallel to the hot water pipe 20 and the cold water pipe 30. Two partition columns 560 are connected to the two ends of the opposing first partition beams 540 and the two ends of the second partition beams 550, respectively.

[0062] Multiple hot water pipes 20 are all wound around the first partition beam 540, the second partition beam 550, the first crossbeam 520 and the second crossbeam 530 on the side closest to the hot water pipe 20.

[0063] Multiple cold water pipes 30 are all routed around the first partition beam 540, the second partition beam 550, the first crossbeam 520 and the second crossbeam 530 on the side closest to the cold water pipes 30.

[0064] In the description of the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0065] In the embodiments of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0066] In the description of the embodiments of this application, it should be understood that the terms "inner", "outer", "upper", "bottom", "front", "rear", etc., indicate the orientation or positional relationship (if any) based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A zero-cold-water equipment circulation testing device, characterized in that, The device includes a first device with zero cold water function, a hot water pipeline and a cold water pipeline. The first device is equipped with a water pump for realizing zero cold water circulation. The first device is connected to the first end of the hot water pipeline and the first end of the cold water pipeline. A one-way valve is provided between the second end of the hot water pipeline and the second end of the cold water pipeline. A water point is also provided between the second end of the hot water pipeline and the second end of the cold water pipeline. A first temperature measuring instrument is provided at the water point. The hot water pipeline has multiple hot water branches connected in parallel. The first end of each hot water branch is connected to the hot water pipeline through a hot water branch inlet pipe, and the second end of each hot water branch is connected to the hot water pipeline through a hot water branch return pipe. A hot water shut-off valve is provided on the hot water inlet pipe of each hot water branch, and a hot water control valve is provided on the hot water pipeline between the hot water inlet pipe and the hot water branch return pipe. By controlling the opening and closing of different hot water shut-off valves and hot water control valves, the total length of the hot water pipeline can be changed. The total length of the hot water pipe that the first device can cover is obtained based on the temperature value fed back by the first temperature measuring instrument and the basic parameters of the water pump. When the temperature measured by the first temperature measuring instrument is greater than or equal to the preset temperature of the water point, the time it takes for hot water to flow to the water point is obtained based on the basic parameters of the water pump and the total length of the corresponding hot water pipeline, and the time is compared with the preset time to determine whether the total length of the hot water pipeline is within a reasonable range.

2. The zero-cold-water equipment circulation testing device according to claim 1, characterized in that, The multiple hot water branches include a first hot water branch, a second hot water branch, a third hot water branch, and a fourth hot water branch; The first end of the first hot water branch is connected to the hot water pipeline through the first hot water branch inlet pipe, and the second end of the first hot water branch is connected to the hot water pipeline through the first hot water branch return pipe; a first hot water shut-off valve is provided on the first hot water branch inlet pipe, and a first hot water control valve is provided on the hot water pipeline between the first hot water branch inlet pipe and the first hot water branch return pipe; The second end of the second hot water branch is connected to the hot water pipeline through the inlet pipe of the second hot water branch, and the second end of the second hot water branch is connected to the hot water pipeline through the return pipe of the second hot water branch; a second hot water shut-off valve is provided on the inlet pipe of the second hot water branch, and a second hot water control valve is provided on the hot water pipeline between the inlet pipe of the second hot water branch and the return pipe of the second hot water branch. The third end of the third hot water branch is connected to the hot water pipeline through the inlet pipe of the third hot water branch, and the second end of the third hot water branch is connected to the hot water pipeline through the return pipe of the third hot water branch; a third hot water shut-off valve is provided on the inlet pipe of the third hot water branch, and a third hot water control valve is provided on the hot water pipeline between the inlet pipe of the third hot water branch and the return pipe of the third hot water branch. The fourth end of the fourth hot water branch is connected to the hot water pipeline through the inlet pipe of the fourth hot water branch, and the second end of the fourth hot water branch is connected to the hot water pipeline through the return pipe of the fourth hot water branch; a fourth hot water shut-off valve is provided on the inlet pipe of the fourth hot water branch, and a fourth hot water control valve is provided on the hot water pipeline between the inlet pipe of the fourth hot water branch and the return pipe of the fourth hot water branch.

3. The zero-cold-water equipment circulation testing device according to claim 2, characterized in that, The lengths of the first hot water branch, the second hot water branch, the third hot water branch, and the fourth hot water branch may be the same or different.

4. The zero-cold-water equipment circulation testing device according to any one of claims 1-3, characterized in that, The cold water pipeline has multiple cold water branches connected in parallel. The first end of each cold water branch is connected to the cold water pipeline through a cold water branch inlet pipe, and the second end of each cold water branch is connected to the cold water pipeline through a cold water branch return pipe. A cold water shut-off valve is provided on the cold water branch inlet pipe, and a cold water control valve is provided on the cold water pipeline between the cold water branch inlet pipe and the cold water branch return pipe.

5. The zero-cold-water equipment circulation testing device according to claim 4, characterized in that, The plurality of cold water branches include a first cold water branch, a second cold water branch, a third cold water branch, and a fourth cold water branch; The first end of the first cold water branch is connected to the cold water pipeline through the first cold water branch inlet pipe, and the second end of the first cold water branch is connected to the cold water pipeline through the first cold water branch return pipe; a first cold water shut-off valve is provided on the first cold water branch inlet pipe, and a first cold water control valve is provided on the cold water pipeline between the first cold water branch inlet pipe and the first cold water branch return pipe. The second end of the second cold water branch is connected to the cold water pipeline through the second cold water branch inlet pipe, and the second end of the second cold water branch is connected to the cold water pipeline through the second cold water branch return pipe; a second cold water shut-off valve is provided on the second cold water branch inlet pipe, and a second cold water control valve is provided on the cold water pipeline between the second cold water branch inlet pipe and the second cold water branch return pipe. The third end of the third cold water branch is connected to the cold water pipeline through the third cold water branch inlet pipe, and the second end of the third cold water branch is connected to the cold water pipeline through the third cold water branch return pipe; a third cold water shut-off valve is provided on the third cold water branch inlet pipe, and a third cold water control valve is provided on the cold water pipeline between the third cold water branch inlet pipe and the third cold water branch return pipe. The fourth end of the fourth cold water branch is connected to the cold water pipeline through the fourth cold water branch inlet pipe, and the second end of the fourth cold water branch is connected to the cold water pipeline through the fourth cold water branch return pipe; a fourth cold water shut-off valve is provided on the fourth cold water branch inlet pipe, and a fourth cold water control valve is provided on the cold water pipeline between the fourth cold water branch inlet pipe and the fourth cold water branch return pipe.

6. The zero-cold-water equipment circulation testing device according to claim 5, characterized in that, The lengths of the first cold water branch, the second cold water branch, the third cold water branch, and the fourth cold water branch may be the same or different.

7. The zero-cold-water equipment circulation testing device according to claim 1, characterized in that, The first temperature measuring instrument is installed at the second end of the hot water pipe and / or the second end of the cold water pipe.

8. The zero-cold-water equipment circulation testing device according to claim 5, characterized in that, A second temperature measuring instrument is also installed on the cold water pipeline located between the return pipe of the fourth cold water branch and the second end of the cold water pipeline.

9. The zero-cold-water equipment circulation testing device according to claim 5, characterized in that, It also includes a support frame, with multiple hot water branches and multiple cold water branches all wound around the support frame, and the hot water pipes and cold water pipes respectively located on both sides of the support frame.

10. The zero-cold-water equipment circulation testing device according to claim 9, characterized in that, The support includes four columns. The tops of two adjacent columns are connected by a first crossbeam, and the lower parts of two adjacent columns are connected by a second crossbeam. Two first partition beams are connected between two opposite first crossbeams, and two second partition beams are connected between two opposite second crossbeams. The two first partition beams and the two second partition beams correspond one-to-one. Two partition columns are connected to the two ends of the opposite first partition beams and the two ends of the second partition beams, respectively. Multiple hot water pipes are wound around the first partition beam, the second partition beam, the first crossbeam, and the second crossbeam on the side closest to the hot water pipes; Multiple cold water pipes are all wound around the first partition beam, the second partition beam, the first crossbeam and the second crossbeam on the side closest to the cold water pipes.

Images