CN218956075U - Test system - Google Patents
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- CN218956075U CN218956075U CN202223370468.9U CN202223370468U CN218956075U CN 218956075 U CN218956075 U CN 218956075U CN 202223370468 U CN202223370468 U CN 202223370468U CN 218956075 U CN218956075 U CN 218956075U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
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Abstract
The utility model provides a test system, which comprises a test pipeline, a water pump and a water tank, wherein the test pipeline is connected with the water pump; the water tank, the water pump and the test pipeline are sequentially connected and form a circulation loop; the test pipeline comprises a main pipeline and branch pipelines, wherein the main pipeline is used for being connected in series and communicated with a plurality of water meters, and the branch pipelines are connected with the main pipeline between adjacent water meters. According to the test system disclosed by the utility model, the problem that the existing test system can only meet the water meter with one specification is well solved.
Description
Technical Field
The utility model relates to the technical field of water meter testing, in particular to a testing system.
Background
This section provides merely background information related to the present disclosure and is not necessarily prior art.
The durability test device for the water meter is test equipment necessary for researching the metering performance of the water meter, and particularly for a household water meter, related water meter standards and pattern evaluation outlines are clearly defined, and durability tests are required to be carried out for water meter improvement, new material improvement and the like.
The durability test comprises a continuous flow durability test and a constant current durability test, and for a household water meter, the continuous flow durability test is firstly carried out, the running is required to be carried out for 15 seconds under the flow of Q3, then the running is stopped for 15 seconds, the running is carried out for 100000 periods, the running is approximate to 900 hours, then the constant current durability test is carried out for 100 hours, and the total time is 1000 hours.
For water meters with different specifications, the Q3 flow points are different, and at present, all test systems used for durability tests are single in system structure and can only test one type of flow, so that one set of test system can only meet the water meter with one specification, and further the test efficiency is affected.
Disclosure of Invention
The utility model aims to at least solve the problem that the existing test system can only meet the water meter with one specification. The aim is achieved by the following technical scheme:
the utility model provides a test system for detecting a plurality of water meters, comprising: test pipeline, water pump and water tank;
the water tank, the water pump and the test pipeline are sequentially connected and form a circulation loop;
the test pipeline comprises a main pipeline and branch pipelines, wherein the main pipeline is used for being connected in series and communicated with a plurality of water meters, and the branch pipelines are connected with the main pipeline between adjacent water meters.
According to the test system provided by the utility model, the water pump pumps water from the water tank and then enters the main pipeline, and then the branch pipeline is used for dividing the water in the main pipeline, so that the water flow flowing into the next water meter is reduced, the simultaneous test of water meters with different specifications is met, the water meters with various specifications can be met through one set of test system, and the problem that the existing test system can only meet the water meters with one specification is well solved.
The test system according to the utility model may also have the following additional technical features:
in some embodiments of the utility model, the test system further comprises an evacuation valve disposed on the branch line.
In some embodiments of the present utility model, the number of the test lines is a plurality, and the plurality of the test lines are connected in parallel.
In some embodiments of the utility model, the test system further comprises a plug valve comprising a valve inlet and a plurality of valve outlets, the valve inlet being connected to the outlet of the water pump, the valve outlets being in one-to-one correspondence and connected to the test lines.
In some embodiments of the present utility model, the main pipeline includes a plurality of main pipe branches connected in series in sequence, the branch pipeline is connected between adjacent main pipe branches, the main pipe branch at the head end is connected with the valve outlet along the flow direction of the water flow, the main pipe branch at the tail end is connected with the water tank, and the branch pipeline is connected with the water tank.
In some embodiments of the utility model, the test system further comprises a plurality of flow meters, wherein the flow meters are connected with the water meters in a one-to-one correspondence, and adjacent single flow meters and single water meters are located in the same main pipe branch.
In some embodiments of the utility model, the test system further comprises a programmable logic controller communicatively coupled to the plug valve for controlling the open and closed states of the plurality of valve outlets.
In some embodiments of the present utility model, the test system further includes a refrigerator and a plurality of temperature sensors, the refrigerator and the water tank are in circulation conduction, the temperature sensors are in one-to-one correspondence with the test pipelines and are communicated with the test pipelines, the programmable logic controller is respectively in communication connection with the plurality of temperature sensors, and the programmable logic controller is in communication connection with the refrigerator.
In some embodiments of the utility model, the test system further comprises a first flow regulating valve and a plurality of second flow regulating valves, wherein the first flow regulating valve is arranged between the plug valve and the water pump, and the second flow regulating valves are in one-to-one correspondence with the test pipelines and are communicated with the test pipelines.
In some embodiments of the present utility model, the test system further includes a plurality of pressure sensors, the pressure sensors are in one-to-one correspondence with the test pipelines and are in communication with the test pipelines, and the programmable logic controller is respectively in communication connection with the plurality of pressure sensors.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:
fig. 1 schematically illustrates a schematic of a test system in accordance with some embodiments of the utility model.
Reference numerals illustrate:
1 is a water tank; 2 is a water pump; 3 is a test pipeline, 31 is a main pipeline, 311 is a main pipeline branch, and 32 is a branch pipeline; 4 is a programmable logic controller; 5 is a refrigerator;
6 is a plug valve, 61 is a valve inlet, and 62 is a valve outlet;
71 is a front section water meter, 72 is a middle section water meter, 73 is a rear section water meter, 74 is a front section flow meter, 75 is a middle section flow meter, 76 is a rear section flow meter;
81 is a middle section exhaust valve, 82 is a rear section exhaust valve;
91 is a first flow regulating valve, 92 is a second flow regulating valve, 93 is a temperature sensor, 94 is a pressure sensor.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "includes," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless an order of performance is explicitly stated. It should also be appreciated that additional or alternative steps may be used.
Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
For ease of description, spatially relative terms, such as "inner," "outer," "lower," "below," "upper," "above," and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used herein interpreted accordingly.
The utility model provides a test system for detecting a plurality of water meters, comprising: test pipeline 3, water pump 2 and water tank 1;
the water tank 1, the water pump 2 and the test pipeline 3 are sequentially connected and form a circulation loop;
the test pipeline 3 comprises a main pipeline 31 and a branch pipeline 32, wherein the main pipeline 31 is used for being connected in series and communicated with a plurality of water meters, and the branch pipeline 32 is connected with the main pipeline 31 between adjacent water meters.
According to the test system provided by the utility model, the water pump 2 pumps water from the water tank 1 and then enters the main pipeline 31, and then the branch pipeline 32 is used for dividing the water in the main pipeline 31, so that the water flow flowing into the next water meter is reduced, the simultaneous test of water meters with different specifications is realized, the water meters with various specifications can be realized through one set of test system, and the problem that the conventional test system can only meet the water meter with one specification is well solved.
Further, the test system further comprises an exhaust valve, the exhaust valve is arranged on the branch pipelines 32, namely, each branch pipeline 32 is provided with an exhaust valve, the water flow of the branch pipelines 32 can be controlled by changing the opening degree of the exhaust valve, and the water flow on the main pipeline 31 after being shunted by the branch pipelines 32 is further regulated so as to ensure that the water flow flowing through the water meter accords with the specification of the water meter.
Specifically, in order that one set of system can simultaneously meet the durability test of a plurality of groups of water meters, the number of the test pipelines 3 is set to be a plurality of, and the plurality of test pipelines 3 are connected in parallel, so that the system test efficiency is improved, in addition, when the continuous flow durability test is performed, the test pipelines 3 can be periodically and circularly switched, the water pump 2 is started, the utilization rate of the water pump 2 reaches 100%, the problem that the water pump 2 in the existing test system is only 50% in utilization rate is well solved, and then frequent starting is needed, so that the energy consumption is high. The number of the test pipelines 3 is 2, 3, etc.
Further, the testing system also comprises a plug valve 6, the plug valve 6 comprises a valve inlet 61 and a plurality of valve outlets 62, the valve inlet 61 is connected with the outlet of the water pump 2, and the valve outlets 62 are in one-to-one correspondence and are connected with the testing pipeline 3; that is, the plug valve 6 has an effect of communicating the outlet of the water pump 2 with the plurality of test lines 3, and water flowing out from the outlet of the water pump 2 flows to the plurality of test lines 3 after being split by the plug valve 6.
In addition, the test system is also provided with a programmable logic controller 4, and the programmable logic controller 4 is in communication connection with the plug valve 6 for controlling the opening and closing states of the plurality of valve outlets 62; it can be understood that when the programmable logic controller 4 controls the valve outlets 62 of the plug valves 6 to be in a normally open state, the water meter on the test pipeline 3 performs a constant-current durability test, and the constant-current durability test is generally 100 hours; when the programmable logic controller 4 controls a certain valve outlet 62 of the plug valve 6 to be in a periodic cycle switching state (opening and closing periodic cycle switching), the water meter on the test pipeline 3 corresponding to the valve outlet 62 performs a continuous flow durability test, the programmable logic controller 4 sets the plug valve 6 to be in an opening state and a closing state for 15 seconds, the switching time is 1 second, the switching times are recorded, and 10 ten thousand times are set.
Referring to fig. 1, in some embodiments of the present utility model, the number of lines of the test pipeline 3 is preferably 2, the corresponding plug valve 6 is 2 valve outlets, and since the related water meter test standard prescribes that the water flow time is 15 seconds when the continuous flow durability test is performed, the water flow time is set to be 2 test pipelines 3, and the programmable logic controller 4 only needs to control the two valve outlets 62 to be respectively and circularly opened for 15 seconds; at this time, the plug valve 6 has 4 states, and when the plug valve 6 is in the 1 st state, the 2 valve outlets 62 are all closed; when the plug valve 6 is in the 2 nd state, a first valve outlet in the 2 valve outlets 62 is opened, and a second valve outlet is closed; when the plug valve 6 is in the 3 rd state, a first valve outlet in the 2 valve outlets 62 is closed, and a second valve outlet is opened; when the plug valve 6 is in the 4 th state, the 2 valve outlets 62 are all opened.
Obviously, when the plug valve 6 is in the 4 th state, the water meters on the two test pipelines 3 are subjected to constant-current durability test, and the constant-current durability test is generally 100 hours; when the plug valve 6 is periodically and circularly switched between the 2 nd state and the 3 rd state, the water meter on the test pipeline 3 corresponding to the valve outlet 62 performs a continuous flow durability test, the programmable logic controller sets the plug valve 6 to be 15 seconds in the opening state and the closing state, the switching time is 1 second, the switching times are recorded, and 10 ten thousand times are set.
Specifically, the main pipeline 31 includes a plurality of main pipe branches 311 connected in series in turn, branch pipelines 32 are connected between adjacent main pipe branches 311, the main pipe branch 311 at the head end is connected with the valve outlet 62 along the flow direction of the water flow, the main pipe branch 311 at the tail end is connected with the water tank 1, and the branch pipelines 32 are connected with the water tank 1; that is, the water flowing out from the outlet of the water pump 2 flows into the main pipe branch 311 at the head end, and after a part of the water flows into the main pipe branch 311 connected in series, flows into the water tank 1 from the main pipe branch 311 at the tail end, and the other part of the water flows into the water tank 1 from the branch pipe 32.
Further, the test system further comprises a plurality of flowmeters, the flowmeters are connected with the water meters in a one-to-one correspondence manner, and the adjacent single flowmeter and the adjacent single water meter are positioned in the same main pipe branch 311; the effect of connecting the flowmeter and the water meter in one-to-one correspondence and arranging the flowmeter and the water meter in the same main pipe branch 311 is that: the flowmeter is only used for detecting the flow of the water meter connected with the flowmeter, so as to determine whether the flow of the water meter meets the flow requirement, and if not, the flowmeter is used for carrying out subsequent adjustment.
It should be noted that the number of the main pipe branches 311, the water meters and the flow meters should be the same, and the number is not limited, and may be 2, 3, etc., as long as the test of the water meters with various specifications can be satisfied.
Referring to fig. 1, in some embodiments of the present utility model, the number of main pipe branches, water meters and flow meters is 3, along the flow direction of water flow, water flows from the main pipe branch 311 at the head end into the front section water meter 71 and the front section flow meter 74, after flowing out from the front section flow meter 74, a part of water flows into the branch pipe 32 and flows back into the water tank 1, another part of water flows into the next main pipe branch 311, water flows into the middle section water meter 72 and the middle section flow meter 75, after flowing out from the middle section flow meter 75, a part of water flows into the branch pipe 32 and flows back into the water tank 1, another part of water flows into the next main pipe branch 311, and finally flows back into the water tank 1 through the rear section water meter 73 and the rear section flow meter 76.
Obviously, the flow requirements of the front section water meter 71, the middle section water meter 72 and the rear section water meter 73 are gradually reduced; in addition, since the branch pipes 32 are located between the adjacent main pipe branches 311, the number of the branch pipes 32 is 2, and therefore the number of the evacuation valves is also 2, including the middle section evacuation valve 81 and the rear section evacuation valve 82, after the water flow flows out from the front section flowmeter 74, a part of the branch pipes 32 where the middle section evacuation valve 81 is located flows back to the water tank 1, and another part of the water flow enters the next main pipe branch 311; after the water flows out of the middle-stage flowmeter 75, one part of the water flows into the branch pipeline 32 where the rear-stage emptying valve 82 is positioned and flows back to the water tank 1, and the other part of the water flows into the next main pipe branch 311.
Specifically, the test system further comprises a refrigerator 5 and a plurality of temperature sensors 93, the refrigerator 5 and the water tank 1 are circularly conducted, the temperature sensors 93 are in one-to-one correspondence with the test pipeline 3 and are communicated with the test pipeline 3, the programmable logic controller 4 is respectively in communication connection with the plurality of temperature sensors 93, the programmable logic controller 4 is in communication connection with the refrigerator 5, the programmable logic controller 4 is used for receiving signals of the temperature sensors 93, when the programmable logic controller 4 sets the water temperature to be higher than 25 ℃, the refrigerator 5 is started, and when the water temperature is lower than 15 ℃, the refrigerator 5 is closed.
And, the test system still includes a plurality of pressure sensor 94, and pressure sensor 94 and test pipeline 3 one-to-one and be linked together with test pipeline 3, and programmable logic controller 4 is connected with a plurality of pressure sensor 94 communication respectively to be used for detecting whether the water pressure in the test pipeline 3 satisfies the test requirement.
Specifically, because the water meters with different specifications have different requirements on flow, each water meter in the test system needs to be ensured to be tested under the specified flow, the test system is further provided with a first flow regulating valve 91 and a plurality of second flow regulating valves 92, the first flow regulating valve 91 is arranged on a pipeline between the plug valve 6 and the water pump 2, and the second flow regulating valves 92 are in one-to-one correspondence with the test pipeline 3 and are communicated with the test pipeline 3; the second flow regulating valve 92 is preferably arranged on the main pipe branch 311 positioned at the tail end, and the first flow regulating valve 91 and the second flow regulating valve 92 are arranged in tandem, so that the flow in the test pipeline 3 can be accurately regulated, and further, the water meters with different specifications can meet the flow requirements; and in combination with the action of the regulating valve on branch line 32, regulate the flow of water through the different specification water meters.
The process of regulating water flow of the test system of the utility model is (for convenience of explanation, the number of main pipe branches, water meters and flow meters is 3, and the number of branch pipelines is 2):
(1) Turning on the water pump 2, the programmable logic controller 4 controls one of the valve outlets 62 of the plug valve 6 to be opened, and the test pipeline 3 connected with the valve outlet 62 is used for feeding water;
(2) The opening degree of the first flow regulating valve 91 and the second flow regulating valve 92 positioned on the test pipeline 3 is regulated, and the flow of the front section flowmeter 74 is observed until the flow requirement of the front section water meter 71 is met;
(3) Adjusting the opening degree of the middle section emptying valve 81, and observing the flow of the middle section flowmeter 75 until the flow requirement of the middle section water meter 72 is met;
(4) Adjusting the opening degree of the rear section exhaust valve 82, and observing the flow of the rear section flowmeter 76 until the flow requirement of the rear section water meter 73 is met;
(5) The opening degree of the first flow regulating valve 91 is ensured to be unchanged, and the programmable logic controller 4 controls the other valve outlets 62 of the plug valve 6 to be opened, so that the flow of the other test pipeline 3 is regulated until the requirement of each water meter is met.
The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.
Claims (10)
1. A test system for detecting a plurality of water meters, comprising: test pipeline, water pump and water tank;
the water tank, the water pump and the test pipeline are sequentially connected and form a circulation loop;
the test pipeline comprises a main pipeline and branch pipelines, wherein the main pipeline is used for being connected in series and communicated with a plurality of water meters, and the branch pipelines are connected with the main pipeline between adjacent water meters.
2. The test system of claim 1, further comprising an evacuation valve disposed on the branch line.
3. The test system of claim 1, wherein the number of test lines is a plurality and wherein a plurality of the test lines are connected in parallel.
4. The test system of claim 3, further comprising a plug valve comprising a valve inlet and a plurality of valve outlets, the valve inlet being connected to the outlet of the water pump, the valve outlets being in one-to-one correspondence and connected to the test lines.
5. The test system of claim 4, wherein the main conduit comprises a plurality of main conduit branches connected in series in sequence, the branch conduit is connected between adjacent main conduit branches, the main conduit branch at the head end is connected with the valve outlet along the flow direction of the water flow, the main conduit branch at the tail end is connected with the water tank, and the branch conduit is connected with the water tank.
6. The test system of claim 5, further comprising a plurality of flow meters, said flow meters being connected in a one-to-one correspondence with said water meters, and adjacent ones of said flow meters and said water meters being located in a common main pipe branch.
7. The test system of claim 4, further comprising a programmable logic controller communicatively coupled to the plug valve for controlling the open and closed states of a plurality of the valve outlets.
8. The test system of claim 7, further comprising a refrigerator and a plurality of temperature sensors, wherein the refrigerator and the water tank are in circulation conduction, the temperature sensors are in one-to-one correspondence with the test pipelines and are communicated with the test pipelines, the programmable logic controller is respectively in communication connection with the plurality of temperature sensors, and the programmable logic controller is in communication connection with the refrigerator.
9. The test system of claim 4, further comprising a first flow regulating valve and a plurality of second flow regulating valves, the first flow regulating valve being disposed between the plug valve and the water pump, the second flow regulating valves being in one-to-one correspondence with the test lines and in communication with the test lines.
10. The test system of claim 7, further comprising a plurality of pressure sensors in one-to-one correspondence with the test lines and in communication with the test lines, the programmable logic controller being communicatively coupled to the plurality of pressure sensors, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223370468.9U CN218956075U (en) | 2022-12-13 | 2022-12-13 | Test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223370468.9U CN218956075U (en) | 2022-12-13 | 2022-12-13 | Test system |
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| Publication Number | Publication Date |
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| CN218956075U true CN218956075U (en) | 2023-05-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202223370468.9U Active CN218956075U (en) | 2022-12-13 | 2022-12-13 | Test system |
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| CN (1) | CN218956075U (en) |
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- 2022-12-13 CN CN202223370468.9U patent/CN218956075U/en active Active
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