Circulating pump test switchable waterway structure

Abstract

The utility model discloses a switchable waterway structure for testing a circulating pump, which is characterized by comprising a base frame, and a first testing waterway, a second testing waterway, a third testing waterway and an output pipe which are arranged on the base frame, the first test water path, the second test water path and the third test water path are arranged in an S-shaped circuitous coil pipe structure; a first bypass pipe and a first control valve are arranged between the tail end of the first test water path and the output pipe; a second bypass pipe and a second control valve are arranged between the second test water path and the output pipe; and a third control valve is arranged between the tail end of the third test water path and the output pipe. According to the utility model, the installation station of the circulating pump does not need to be changed, and only the conduction state of the control valve is switched on the waterway test frame, so that the drawing force test under various waterway length simulation working conditions can be quickly carried out, the arrangement space of a test platform is greatly reduced, and the test efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circulating pump detection, and particularly relates to a switchable waterway structure for circulating pump testing. Background Art

[0002] The durability performance and pumping performance of a circulating pump are important evaluation indexes of the circulating pump. The pumping performance generally reflects the pumping force of the circulating pump under different path lengths; the durability performance generally refers to the attenuation degree of the pumping force before and after a large number of start-stop durability tests. The usage scenarios of water heaters are generally small-sized rooms, ordinary rooms, multi-story duplexes or large flats, etc., and the lengths of the water supply paths of the water heaters are different. The circulating pump is a key component for the stable operation of the water heater. In order to ensure that the water heater can maintain better durability performance and suction performance under different usage scenarios, each batch of circulating pumps needs to be sampled and detected. In order to facilitate the rapid detection of the pumping force of the circulating pump under different usage environments and the pumping force before and after the durability test, a switchable waterway structure that is easy to detect is required to reduce the layout space of the test platform and improve the test efficiency. Summary of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a switchable waterway structure for circulating pump testing.

[0004] An embodiment of the utility model adopts the following technical solution to solve its technical problems: A switchable waterway structure for circulating pump testing, characterized by comprising: a base frame, and a first test waterway, a second test waterway, a third test waterway and an output pipe arranged on the base frame;

[0005] The first test waterway, the second test waterway, the third test waterway and the output pipe are connected in sequence; the first test waterway is provided with a water inlet interface, and the output pipe is provided with a water outlet interface; the first test waterway, the second test waterway and the third test waterway are arranged in a serpentine winding coil structure;

[0006] A first bypass pipe and a first control valve are arranged between the end of the first test waterway and the output pipe; a second bypass pipe and a second control valve are arranged between the second test waterway and the output pipe; a third control valve is arranged between the end of the third test waterway and the output pipe.

[0007] Optionally, the first test waterway, the second test waterway and the third test waterway are composed of a plurality of vertically arranged water pipes and horizontally arranged water pipes connected in parallel; the horizontal water pipes and the vertical water pipes are connected by arc-shaped elbows.

[0008] Optionally, the arc-shaped elbows are provided with a first arc-shaped elbow and a second arc-shaped elbow with different radii.

[0009] Optionally, two adjacent vertical water pipes are arranged in a periodic pattern with two interval distances, namely a first interval and a second interval; the upper parts of a plurality of the vertical water pipes are all connected to the horizontal water pipe through a first arc-shaped elbow, and the lower parts are all connected to the horizontal water pipe through a second arc-shaped elbow.

[0010] Optionally, the base frame includes a vertical frame; the first test waterway and the second test waterway are arranged on one side of the vertical frame, and the third test waterway is arranged on the other side of the vertical frame.

[0011] Optionally, the waterway lengths of the first test waterway and the second test waterway are the same and are half of the waterway length of the third test waterway.

[0012] Optionally, the waterway lengths of the first test waterway and the second test waterway are both 15 meters; the waterway length of the third test waterway is 30 meters.

[0013] Advantages of the present utility model: The meandering serpentine coil arrangement of the first test waterway, the second test waterway, and the third test waterway can simulate the actual meandering pipe layout conditions of the water heater connection pipeline; and by controlling the on-off state of the test waterway and the output pipe through the first control valve, the second control valve, or the third control valve, the waterway length of the actual waterway of the test waterway can be changed; multiple test states such as a state where only the first test waterway is conducting, a state where the first test waterway and the second test waterway are conducting, or a state where all three test waterways are sequentially connected can be realized. Without changing the installation position of the circulation pump, only by switching the on-off state of the control valve on the waterway test stand, the suction force test under various waterway length simulation conditions can be quickly carried out, greatly reducing the layout space of the test platform and effectively improving the test efficiency.

[0014] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the following specific preferred embodiments are given below in conjunction with the accompanying drawings and are described in detail as follows. Description of the Drawings

[0015] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, where:

[0016] Figure 1 is a schematic structural diagram of a switchable waterway structure for testing a circulation pump according to the present utility model;

[0017] Figure 2 is Figure 1 a top view of the switchable waterway structure for testing a circulation pump in

[0018] Figure 3 is Figure 1 a front view of the switchable waterway structure for testing a circulation pump in

[0019] Description of main component symbols:

[0020] 10. Base frame; 11. Vertical frame; 20. First test waterway; 21. Water inlet interface; 22. First bypass pipe; 23. First control valve; 30. Second test waterway; 31. Second bypass pipe; 32. Second control valve; 40. Third test waterway; 41. Third control valve; 50. Output pipe; 51. Water outlet interface; 60. Vertical water pipe; 61. Horizontal water pipe; 62. First arc-shaped elbow; 63. Second arc-shaped elbow; 64. First interval; 65. Second interval. Detailed implementation manners

[0021] This part will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the drawings. The role of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present invention. However, it should not be construed as a limitation on the protection scope of the present invention.

[0022] In the description of the present invention, the meaning of "a plurality of" is two or more. Understandings such as "greater than", "less than", and "exceeding" do not include the present number, and understandings such as "above", "below", and "within" include the present number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0023] In the description of the present invention, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by "upper", "lower", "front", "rear", "left", "right", etc., is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation on the present invention.

[0024] In the present invention, unless otherwise clearly defined, words such as "set", "installed", and "connected" should be understood in a broad sense. For example, they can be directly connected, or indirectly connected through an intermediate medium; they can be fixedly connected, or detachably connected, or integrally formed; they can be mechanically connected; they can be the communication inside two elements or the interaction relationship between two elements. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0025] Embodiment

[0026] Refer to Figures 1 to 3, a switchable water circuit structure for circulating pump testing proposed by the present utility model, which is characterized by including: a base frame 10, a first test water circuit 20, a second test water circuit 30, a third test water circuit 40 and an output pipe 50 arranged on the base frame 10;

[0027] The first test water circuit 20, the second test water circuit 30, the third test water circuit 40 and the output pipe 50 are connected in sequence; the first test water circuit 20 is provided with a water inlet interface 21, and the output pipe 50 is provided with a water outlet interface 51; the first test water circuit 20, the second test water circuit 30 and the third test water circuit 40 are arranged in a serpentine meandering coil structure;

[0028] A first bypass pipe 22 and a first control valve 23 are arranged between the end of the first test water circuit 20 and the output pipe 50; a second bypass pipe 31 and a second control valve 32 are arranged between the second test water circuit 30 and the output pipe 50; a third control valve 41 is arranged between the end of the third test water circuit 40 and the output pipe 50.

[0029] In the present utility model, the meandering serpentine coil arrangement of the first test water circuit 20, the second test water circuit 30, and the third test water circuit 40 can simulate the actual meandering pipe layout working conditions of the water heater connection pipeline; and by the first control valve 23, the second control valve 32 or the third control valve 41, controlling the conduction state of the test water circuit and the output pipe 50, the water circuit length of the actual water circuit of the test water circuit can be changed; realizing multiple test states such as only the first test water circuit 20 being conductive, or the first test water circuit 20 and the second test water circuit 30 being conductive, or all three test water circuits being connected in sequence, etc. Without changing the installation position of the circulating pump, only by switching the conduction state of the control valve on the water circuit test stand, the suction test under various water circuit length simulation working conditions can be quickly carried out, greatly reducing the layout space of the test platform and effectively improving the test efficiency.

[0030] In this embodiment, the first test water circuit 20, the second test water circuit 30 and the third test water circuit 40 are composed of a plurality of vertically arranged water pipes 60 and horizontally arranged water pipes 61 arranged side by side; the horizontally arranged water pipes 61 are connected to the vertically arranged water pipes 60 through arc-shaped elbows. By means of the vertically arranged water pipes 60, the horizontally arranged water pipes 61 and the arc-shaped elbows, the water circuit layout of the meandering serpentine coil structure can be realized on the base frame 10; and the vertically arranged water pipes 60 can be arranged with water pipes of the same standard length, such as water pipes of 1 meter or 2 meters in length, which is convenient for setting.

[0031] In this embodiment, the arc-shaped elbow is provided with a first arc-shaped elbow 62 and a second arc-shaped elbow 63 with different radii. The first arc-shaped elbow 62 and the second arc-shaped elbow 63 with different pipe diameters can simulate the water circuit working conditions of large and small corners in the actual water circuit laying, and are closer to the use scenario of the water heater circulating pump.

[0032] Specifically, two adjacent vertical water pipes 60 are arranged in a periodic pattern with two interval distances, namely a first interval 64 and a second interval 65; the upper parts of a plurality of vertical water pipes 60 are all connected to a horizontal water pipe 61 through a first arc-shaped elbow 62, and the lower parts are all connected to the horizontal water pipe 61 through a second arc-shaped elbow 63. In this arrangement method, the vertical water pipes 60 are arranged at intervals in a periodic manner with the first interval 64 and the second interval 65, so that the water measurement water circuit arrangement of the serpentine coil structure can be completed by using the vertical water pipes 60, horizontal water pipes 61, first arc-shaped elbows 62 and second arc-shaped elbows 63 of the same specification, and the water circuit conditions of large corners and small corners in the actual water circuit laying can be simulated.

[0033] In this embodiment, the base frame 10 includes a vertical frame 11; the first test water circuit 20 and the second test water circuit 30 are arranged on one side of the vertical frame 11, and the third test water circuit 40 is arranged on the other side of the vertical frame 11. By arranging the test water circuits on both sides of the vertical frame 11, the span space of the vertical frame 11 is further reduced in space.

[0034] Furthermore, a plurality of vertical frames 11 can be arranged at intervals to further reduce the span space of the base frame 10.

[0035] In some embodiments, the water circuit lengths of the first test water circuit 20 and the second test water circuit 30 are the same and are half of the water circuit length of the third test water circuit 40. In this arrangement method, the total length of the first test water circuit 20 and the second test water circuit 30 is the same as that of the third test water circuit, and the relative sides of the vertical frame 11 can be arranged with a similar horizontal span, making full use of the space on both sides of the vertical frame 11 for the arrangement of the test water circuits.

[0036] For example, the water circuit length of the third test water circuit is in the range of 20 meters to 40 meters; then the water circuit lengths of the first test water circuit and the second test water circuit are in the range of 10 meters to 20 meters.

[0037] After multiple test runs, preferably, the water circuit lengths of both the first test water circuit 20 and the second test water circuit 30 are 15 meters; the water circuit length of the third test water circuit 40 is 30 meters. It can preferably simulate the usage conditions of scenarios such as small apartments, ordinary apartments, multi-story duplexes or large flats, and can be conveniently arranged by using the vertical water pipes 60, horizontal water pipes 61, first arc-shaped elbows 62 and second arc-shaped elbows 63 of the same specification; among them, the first bypass pipe 22 and the second bypass pipe 31 are centrally arranged in the vertical water pipe 60.

[0038] The specific switching conditions of the test water circuit are as follows:

[0039] 1. Simulate the test conditions of a small living room. Close the second control valve 32 and the third control valve 41, and open the first control valve 23. At this time, the test water circuit flows along the first test water circuit 20 and the first bypass pipe 22 towards the output pipe 50, which is the test water circuit condition with a water circuit length of 15 meters.

[0040] 2. Simulate the test conditions of an ordinary living room. Close the first control valve 23 and the third control valve 41, and open the second control valve 32. At this time, the test water circuit flows along the first test water circuit 20, the second test water circuit 30, and the second bypass pipe 31 towards the output pipe 50, which is the test water circuit condition with a water circuit length of 30 meters.

[0041] 3. Simulate the test conditions of a multi-story duplex or a large flat floor. Close the first control valve 23 and the second control valve 32, and open the third control valve 41. At this time, the test water circuit flows along the first test water circuit 20, the second test water circuit 30, and the third test water circuit 40 towards the output pipe 50, which is the test water circuit condition with a water circuit length of 60 meters.

[0042] Certainly, the present utility model is not limited to the above embodiments. Those skilled in the art can make equivalent deformations or substitutions without departing from the spirit of the present utility model, and these equivalent deformations and substitutions are all included in the scope defined by the claims of this application.

Claims

1. A switchable water channel structure for circulating pump testing, characterized in that: include: A base frame (10), and a first test water channel (20), a second test water channel (30), a third test water channel (40), and an output pipe (50) arranged on the base frame (10); The first test water channel (20), the second test water channel (30), the third test water channel (40) and the output pipe (50) are connected in sequence; the first test water channel (20) is provided with a water inlet interface (21), and the output pipe (50) is provided with a water outlet interface (51); the first test water channel (20), the second test water channel (30) and the third test water channel (40) are arranged in a serpentine winding coil structure; A first bypass pipe (22) and a first control valve (23) are provided between the end of the first test water circuit (20) and the output pipe (50); a second bypass pipe (31) and a second control valve (32) are provided between the second test water circuit (30) and the output pipe (50); and a third control valve (41) is provided between the end of the third test water circuit (40) and the output pipe (50).

2. The switchable water channel structure for circulating pump testing according to claim 1 is characterized in that: The first test water channel (20), the second test water channel (30) and the third test water channel (40) are composed of a plurality of vertical water pipes (60) and transverse water pipes (61) arranged side by side; the transverse water pipes (61) are connected to the vertical water pipes (60) via arc-shaped elbows.

3. The switchable water channel structure for circulating pump testing according to claim 2 is characterized in that: The arc-shaped curved pipe is provided with a first arc-shaped curved pipe (62) and a second arc-shaped curved pipe (63) having different radii.

4. The switchable water channel structure for circulating pump testing according to claim 3 is characterized in that: Two adjacent vertical water pipes (60) are periodically arranged at two intervals, namely, a first interval (64) and a second interval (65); the upper parts of a plurality of the vertical water pipes (60) are connected to the horizontal water pipe (61) via a first arc-shaped curved pipe (62), and the lower parts are connected to the horizontal water pipe (61) via a second arc-shaped curved pipe (63).

5. The switchable water channel structure for circulating pump testing according to claim 2 is characterized in that: The base frame (10) comprises a vertical frame (11); the first test water channel (20) and the second test water channel (30) are arranged on one side of the vertical frame (11), and the third test water channel (40) is arranged on the other side of the vertical frame (11).

6. The switchable water channel structure for circulating pump testing according to claim 1, characterized in that: The water channel lengths of the first test water channel (20) and the second test water channel (30) are the same, which is half the water channel length of the third test water channel (40).

7. The switchable water channel structure for circulating pump testing according to claim 6 is characterized in that: The water channel lengths of the first test water channel (20) and the second test water channel (30) are both 15 meters; and the water channel length of the third test water channel (40) is 30 meters.

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