CN220230666U - Liquid flow standard device without voltage stabilization - Google Patents
Liquid flow standard device without voltage stabilization Download PDFInfo
- Publication number
- CN220230666U CN220230666U CN202320942128.4U CN202320942128U CN220230666U CN 220230666 U CN220230666 U CN 220230666U CN 202320942128 U CN202320942128 U CN 202320942128U CN 220230666 U CN220230666 U CN 220230666U
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- Prior art keywords
- meter
- standard
- water pump
- liquid flow
- positive displacement
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- 239000007788 liquid Substances 0.000 title claims abstract description 21
- 230000006641 stabilisation Effects 0.000 title description 3
- 238000011105 stabilization Methods 0.000 title description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 49
- 238000006073 displacement reaction Methods 0.000 claims description 17
- 230000001105 regulatory effect Effects 0.000 claims description 9
- 230000010349 pulsation Effects 0.000 claims description 6
- 230000003068 static effect Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 238000005303 weighing Methods 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 abstract description 11
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011549 displacement method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Control Of Non-Positive-Displacement Pumps (AREA)
Abstract
The utility model relates to a non-stable-pressure liquid flow standard device, which comprises a double-rotor water pump, a pipeline system, a reverser, a standard container or an electronic scale and a water tank; the water tank, the double-rotor water pump, the pipeline system, the commutator, the standard container or the electronic scale and the water tank are sequentially and circularly connected, and the rotor water pump is a pulse-free rotor water pump. The utility model adopts a pulse-free power source to directly solve the problem of unstable flow output, thereby needing no voltage stabilizing device, and having simple structure and convenient use.
Description
Technical Field
The utility model relates to a liquid flow standard device, in particular to a non-stable-pressure liquid flow standard device.
Background
The common liquid flow standard device consists of a power source, a pressure stabilizing device, a test pipeline, a commutator and an electronic scale/standard container, wherein the pressure stabilizing device is basically a pressure stabilizing water tower, a high-level water tank or a pressure stabilizing tank. This is because the power source is basically composed of a centrifugal water pump, and the biggest disadvantage of the centrifugal water pump is that pulsation of liquid is easy to generate, and then the pressure of the liquid has to be stabilized by using a pressure stabilizing device, so that the output flow of the liquid flow standard device is stable.
However, the voltage stabilizing device has a large floor area, high cost, and requires regular maintenance, which is a burden of the standard device.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art, provides a non-stable-pressure liquid flow standard device and solves the problem of pulsation of the liquid flow device.
In order to solve the technical problems, the utility model is realized as follows:
a non-regulated liquid flow standard device, characterized in that: the device comprises a positive displacement water pump, a pipeline system, a reverser, a standard meter and a water tank; the water tank, the positive displacement water pump, the pipeline system, the commutator, the standard meter and the water tank are sequentially and circularly connected, and the positive displacement water pump is a non-pulsation positive displacement water pump.
The non-stable-pressure liquid flow standard device is characterized in that: the standard meter is a reverser, a standard container or equipment required by a static weighing method or a static volumetric method by an electronic scale.
The non-stable-pressure liquid flow standard device is characterized in that: the pipeline system comprises a front straight pipe section of the checked meter, a rear straight pipe section of the checked meter, a meter clamping device, a front straight pipe section of the standard meter, a rear straight pipe section of the standard meter, a regulating valve and a water return pipe; and one end of the straight tube section before the detected meter is connected with the positive displacement water pump, the other end of the straight tube section after the detected meter is sequentially connected with the detected meter, the straight tube section after the detected meter, the meter clamping device, the straight tube section before the standard meter, the straight tube section after the standard meter, the regulating valve and one end of the water return pipe, and the other end of the water return pipe is connected with the water tank to form circulation.
The beneficial effects of the utility model are as follows: the pressure stabilizing device is reduced, the cost is saved, the land area is saved, the construction cost of the pressure stabilizing device such as foundation reinforcement and the like can be omitted, the flow range ratio of the rotor pump without pulsation can reach 10:1, and the flow range ratio is many times larger than that of the traditional centrifugal water pump 3:1. The corresponding flow control device, such as a control valve, can therefore also be dispensed with.
Drawings
The utility model is described in further detail below with reference to the attached drawings and embodiments:
fig. 1 is a schematic structural diagram of the present application.
Detailed Description
As shown in fig. 1: the liquid flow standard device without pressure stabilization comprises a positive displacement water pump 1, a water tank 2, a front straight pipe section 3 of a detected meter, a detected meter 4, a rear straight pipe section 5 of the detected meter, a meter clamping device 6, a front straight pipe section 7 of the standard meter, a standard meter 8, a rear straight pipe section 9 of the standard meter, a regulating valve 10 and a return pipe 11; the water tank, the positive displacement water pump, the pipeline system, the standard meter (the reverser, the standard container or the electronic scale are equipment required by a static weighing method or a static positive displacement method) and the water tank are sequentially and circularly connected, and the positive displacement water pump is a pulsation-free positive displacement water pump.
The non-stable-pressure liquid flow standard device is characterized in that: the pipeline system comprises a front straight pipe section of the checked meter, a rear straight pipe section of the checked meter, a meter clamping device, a front straight pipe section of the standard meter, a rear straight pipe section of the standard meter, a regulating valve and a water return pipe; and one end of the straight tube section before the detected meter is connected with the positive displacement water pump, the other end of the straight tube section after the detected meter is sequentially connected with the detected meter, the straight tube section after the detected meter, the meter clamping device, the straight tube section before the standard meter, the straight tube section after the standard meter, the regulating valve and one end of the water return pipe, and the other end of the water return pipe is connected with the water tank to form circulation.
The common power source is a centrifugal water pump, the application adopts a positive displacement pump, the driving unit inside is of a pulse-free design, and the problem of pulsation of the liquid flow device is solved from the source, so that the pressure stabilizing device with high cost and large occupied area is eliminated.
The pulsation-free positive displacement pump is used as a power source of the liquid flow standard device, and a stable flow is directly provided for the whole pipeline system, so that the traditional pressure stabilizing device loses the use significance.
Claims (3)
1. A non-regulated liquid flow standard device, characterized in that: the device comprises a positive displacement water pump, a pipeline system, a reverser, a standard meter and a water tank; the water tank, the positive displacement water pump, the pipeline system, the commutator, the standard meter and the water tank are sequentially and circularly connected, and the positive displacement water pump is a non-pulsation positive displacement water pump.
2. The pressureless liquid flow standard device according to claim 1, wherein: the standard meter is a reverser, a standard container or equipment required by a static weighing method or a static volumetric method by an electronic scale.
3. The pressureless liquid flow standard device according to claim 1, wherein: the pipeline system comprises a front straight pipe section of the checked meter, a rear straight pipe section of the checked meter, a meter clamping device, a front straight pipe section of the standard meter, a rear straight pipe section of the standard meter, a regulating valve and a water return pipe; and one end of the straight tube section before the detected meter is connected with the positive displacement water pump, the other end of the straight tube section after the detected meter is sequentially connected with the detected meter, the straight tube section after the detected meter, the meter clamping device, the straight tube section before the standard meter, the straight tube section after the standard meter, the regulating valve and one end of the water return pipe, and the other end of the water return pipe is connected with the water tank to form circulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320942128.4U CN220230666U (en) | 2023-04-24 | 2023-04-24 | Liquid flow standard device without voltage stabilization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320942128.4U CN220230666U (en) | 2023-04-24 | 2023-04-24 | Liquid flow standard device without voltage stabilization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220230666U true CN220230666U (en) | 2023-12-22 |
Family
ID=89194930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320942128.4U Active CN220230666U (en) | 2023-04-24 | 2023-04-24 | Liquid flow standard device without voltage stabilization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220230666U (en) |
-
2023
- 2023-04-24 CN CN202320942128.4U patent/CN220230666U/en active Active
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