CN211291668U - Back pressure ratio equipment suitable for piston - Google Patents
Back pressure ratio equipment suitable for piston Download PDFInfo
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- CN211291668U CN211291668U CN202020328345.0U CN202020328345U CN211291668U CN 211291668 U CN211291668 U CN 211291668U CN 202020328345 U CN202020328345 U CN 202020328345U CN 211291668 U CN211291668 U CN 211291668U
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Abstract
The utility model provides a backpressure ratio equipment suitable for piston belongs to water gauge detection technical field. The back pressure ratio equipment comprises a piston flowmeter device and a back pressure ratio device, wherein the piston flowmeter device comprises a workbench, a piston, a driving motor, a screw rod, a first connecting pipe, a water pump, a recovery water tank, a third connecting pipe, a water meter and a second connecting pipe, set up first backpressure pipeline and second backpressure pipeline inside the backpressure than the device, communicate the one end and the piston flowmeter device of first backpressure pipeline, the horizontal height of the highest point of first backpressure pipeline is greater than the horizontal height of piston flowmeter device, first backpressure pipeline is carried to water gauge exit water, and the water inside the first backpressure pipeline exerts pressure in the exit of piston flowmeter device owing to gravity and atmospheric pressure's effect, makes the pressure of piston flowmeter device drainage department remain stable to make the backpressure compare equipment have the more accurate effect of delivery port pressure stability detection data.
Description
Technical Field
The utility model relates to a water gauge detects technical field, particularly, relates to a backpressure ratio equipment suitable for piston.
Background
The water meter is a theoretical metering appliance for national key management, the accuracy of the water meter needs to be detected before the water meter leaves a factory, the metering performance debugging and factory calibration of a household small-caliber water meter production enterprise, the first calibration of a legal metering technical mechanism and an authorized water meter calibration station and the scientific research of a flow research unit need to use a piston type liquid flow standard device and a driving device of the existing piston type liquid flow standard device, wherein a piston power structure adopts a structure that a hollow push rod is meshed with a screw rod, a motor is rotationally driven, and the detection data is inaccurate due to the unstable detection process caused by the stability and negative pressure influence of water discharged from a piston in the operation process of the existing piston type liquid flow standard device.
SUMMERY OF THE UTILITY MODEL
In order to compensate above not enough, the utility model provides a backpressure ratio equipment suitable for piston through the backpressure device, has solved current piston liquid flow standard device delivery port pressure unstability and has leaded to the inaccurate problem of testing data.
The utility model discloses a realize like this:
a back pressure ratio apparatus for a piston includes a piston flow meter device and a back pressure ratio device.
The piston flowmeter device comprises a workbench, a piston, a driving motor, a screw rod, a first connecting pipe, a water pump, a recovery water tank, a third connecting pipe, a water meter and a second connecting pipe, wherein the water meter, the piston and the driving motor are sequentially arranged at the top of the workbench from left to right;
the backpressure ratio device comprises a fixing frame, a supporting frame assembly, a first backpressure pipeline and a second backpressure pipeline, wherein the supporting frame assembly is installed at the top of the fixing frame, the first backpressure pipeline sequentially penetrates through the supporting frame assembly and the fixing frame from top to bottom, the second backpressure pipeline is communicated with the upper portion of one side of the first backpressure pipeline, one end of the first backpressure pipeline is communicated with a third connecting pipe, the other end of the first backpressure pipeline is communicated with a second connecting pipe, the supporting frame assembly comprises a fixing sleeve, a connecting rod and a supporting rod, the fixing sleeve is installed on one side of the connecting rod, and the supporting rod is installed at the bottom of the connecting rod.
In an embodiment of the present invention, the first back pressure pipeline and the fixing sleeve are connected by welding.
In an embodiment of the present invention, the support rod is welded to the middle portion of the connecting rod.
In an embodiment of the present invention, the second back pressure pipeline has an opening at one end facing upward and a horizontal height higher than a horizontal height of the first back pressure pipeline at most.
In an embodiment of the present invention, the first back pressure pipeline is in an inverted U shape, and a height of a horizontal plane of a highest position of the first back pressure pipeline is greater than a height of a horizontal plane of the piston flowmeter device.
The utility model has the advantages that: the utility model discloses a backpressure ratio equipment suitable for piston that above-mentioned design obtained is through setting up backpressure ratio device, at inside first backpressure pipeline and the second backpressure pipeline of setting up of backpressure ratio device, with the one end and the piston flowmeter device intercommunication of first backpressure pipeline, the horizontal plane height of the highest point of first backpressure pipeline is greater than piston flowmeter device's horizontal plane height, inside the piston flowmeter device need carry water to first backpressure pipeline when the drainage, the inside water of first backpressure pipeline is because gravity and atmospheric pressure's effect exert pressure in piston flowmeter device's exit, makes the pressure of piston flowmeter device drainage department remain stable to make backpressure ratio equipment have the more accurate effect of delivery port pressure stability detection data.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a back pressure ratio device provided by an embodiment of the present invention;
fig. 2 is an enlarged schematic view of a portion a in fig. 1.
In the figure: 1-a piston flow meter device; 101-a workbench; 102-a piston; 103-a drive motor; 104-a screw rod; 105-a first connection tube; 106-water pump; 107-a recovery water tank; 108-a third connecting tube; 109-water meter; 1010-a second connecting tube; 2-backpressure ratio device; 201-a fixing frame; 202-a support frame assembly; 20201-fixed sleeve; 20202-connecting rod; 20203-struts; 203-a first back pressure conduit; 204-a second back pressure conduit.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Examples
Referring to fig. 1-2, the present invention provides a technical solution: a back pressure ratio device suitable for a piston comprises a piston flowmeter device 1 and a back pressure ratio device 2.
Referring to fig. 1-2, the piston flowmeter apparatus 1 includes a worktable 101, a piston 102, a driving motor 103, a screw rod 104, a first connecting pipe 105, a water pump 106, a recovery water tank 107, a third connecting pipe 108, a water meter 109 and a second connecting pipe 1010, the water meter 109, the piston 102 and the driving motor 103 are sequentially installed on the top of the worktable 101 from left to right, the recovery water tank 107 is installed on the bottom of the worktable 101, the recovery water tank 107 is used for storing the detection water used by the piston flowmeter apparatus 1 and recovering the water detected by the piston flowmeter apparatus 1, the screw rod 104 is installed between the piston 102 and the driving motor 103, the driving motor 103 drives the piston 102 through the screw rod 104, one end of the first connecting pipe 105 is communicated with one side of the recovery water tank 107, the other end of the first connecting pipe 105 is communicated with one side of the piston 102 through the water pump 106, one end of the third connecting pipe 108 is, the other end of the third connecting pipe 108 penetrates the water meter 109, the second connecting pipe 1010 is communicated with the top of the recovery water tank 107, the backpressure ratio device 2 comprises a fixed frame 201, a supporting frame assembly 202, a first backpressure pipeline 203 and a second backpressure pipeline 204, the supporting frame assembly 202 is installed on the top of the fixed frame 201, the first backpressure pipeline 203 sequentially penetrates the supporting frame assembly 202 and the fixed frame 201 from top to bottom, the second backpressure pipeline 204 is communicated with the upper part of one side of the first backpressure pipeline 203, one end of the first backpressure pipeline 203 is communicated with the third connecting pipe 108, the other end of the first backpressure pipeline 203 is communicated with the second connecting pipe 1010, the supporting frame assembly 202 comprises a fixed sleeve 20201, a connecting rod 20202 and a supporting rod 20203, the fixed sleeve 20201 is installed on one side of the connecting rod 20202, the supporting rod 20203 is installed on the bottom of the connecting rod 20202, the connecting mode of the first backpressure pipeline 203 and the fixed sleeve 20201 is, the stress is stable, the first back pressure pipeline 203 is kept stable in the process of water injection of the first back pressure pipeline 203, one end of the second back pressure pipeline 204 is opened upwards, the height of the horizontal plane is higher than that of the maximum point of the first back pressure pipeline 203, the first back pressure pipeline 203 is used for communicating the first back pressure pipeline 203 with the atmosphere, one end of the second back pressure pipeline 204 is higher than that of the first back pressure pipeline 203, the detection water is prevented from leaking to the outside in the process of water injection, the range of the first back pressure pipeline 203 for adjusting the outlet pressure of the piston flowmeter device 1 can be increased, the first back pressure pipeline 203 is in an inverted U shape, the height of the highest horizontal plane of the first back pressure pipeline 203 is higher than that of the piston flowmeter device 1, the driving motor 103 drives the piston 102 to discharge water inside the piston 102 through the water meter 109 through the screw rod 104, the water inside the water meter 109 enters the first back pressure pipeline 203 through the third connecting pipe 108, the driving motor 103 drives the piston 102 to deliver water to the highest point of the first back pressure pipe 203, and the water in the first back pressure pipe 203 exerts back pressure on the outlet of the water meter 109 under the action of gravity and atmospheric pressure, so that the operation of the water meter 109 is kept stable, and the back pressure has the effect of more accurate detection data of stable outlet pressure than that of the device.
In particular, the working principle of the back pressure ratio device suitable for the piston is as follows: a first back pressure pipeline 203 and a second back pressure pipeline 204 are arranged in the back pressure ratio device 2, one end of the first back pressure pipeline 203 is communicated with a third connecting pipe 108, the height of the highest horizontal plane of the first back pressure pipeline 203 is greater than that of the piston flowmeter device 1, a driving motor 103 drives a piston 102 through a screw 104 to discharge water in the piston 102 through a water meter 109, the water in the water meter 109 enters the first back pressure pipeline 203 through the third connecting pipe 108, the driving motor 103 drives the piston 102 to convey the water to the highest point of the first back pressure pipeline 203, the water in the first back pressure pipeline 203 exerts back pressure on an outlet of the water meter 109 under the action of gravity and atmospheric pressure, so that the operation of the water meter 109 is kept stable, the data is calculated after the water meter 109 is stably operated, so that the back pressure has more accurate detection data of the stable outlet pressure than the device.
It should be noted that the specific model specifications of the driving motor 103 and the water pump 106 need to be determined by model selection according to the actual specification of the device, and the specific model selection calculation method adopts the prior art in the field, so detailed description is omitted.
The power supply of the drive motor 103, the water pump 106 and the principle thereof will be clear to a person skilled in the art and will not be described in detail here.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A backpressure ratio device suitable for a piston, comprising,
the piston flowmeter device (1) comprises a workbench (101), a piston (102), a driving motor (103), a screw rod (104), a first connecting pipe (105), a water pump (106), a recovery water tank (107), a third connecting pipe (108), a water meter (109) and a second connecting pipe (1010), wherein the water meter (109), the piston (102) and the driving motor (103) are sequentially installed at the top of the workbench (101) from left to right, the recovery water tank (107) is arranged at the bottom of the workbench (101), the screw rod (104) is installed between the piston (102) and the driving motor (103), one end of the first connecting pipe (105) is communicated with one side of the recovery water tank (107), and the other end of the first connecting pipe (105) penetrates through the water pump (106) and is communicated with one side of the piston (102), one end of the third connecting pipe (108) is communicated with the other side of the piston (102), the other end of the third connecting pipe (108) penetrates through the water meter (109), and the second connecting pipe (1010) is communicated with the top of the recovery water tank (107);
the back pressure ratio device (2), the back pressure ratio device (2) comprises a fixed frame (201), a supporting frame assembly (202), a first back pressure pipeline (203) and a second back pressure pipeline (204), the supporting frame assembly (202) is installed at the top of the fixed frame (201), the first back pressure pipeline (203) sequentially penetrates through the supporting frame assembly (202) and the fixed frame (201) from top to bottom, the second back pressure pipeline (204) is communicated with the upper portion of one side of the first back pressure pipeline (203), one end of the first back pressure pipeline (203) is communicated with a third connecting pipe (108), the other end of the first back pressure pipeline (203) is communicated with a second connecting pipe (1010), the supporting frame assembly (202) comprises a fixing sleeve (20201), a connecting rod (20202) and a supporting rod (20203), the fixing sleeve (20201) is installed at one side of the connecting rod (20202), the supporting rod (20203) is arranged at the bottom of the connecting rod (20202).
2. A back pressure ratio device adapted to a piston according to claim 1, characterized in that the connection of the first back pressure conduit (203) to the fixed sleeve (20201) is a weld.
3. The backpressure ratio device suitable for pistons according to claim 1, characterized in that the support rod (20203) is welded to the middle of the connecting rod (20202).
4. A backpressure ratio device suitable for use in a piston according to claim 1, wherein the second backpressure conduit (204) is open at one end upwards and has a level higher than the level of the maximum point of the first backpressure conduit (203).
5. A backpressure ratio device suitable for use in a piston according to claim 1, wherein the first backpressure conduit (203) is shaped as an inverted U, and the height of the level of the highest point of the first backpressure conduit (203) is larger than the height of the level of the piston flow meter device (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020328345.0U CN211291668U (en) | 2020-03-17 | 2020-03-17 | Back pressure ratio equipment suitable for piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020328345.0U CN211291668U (en) | 2020-03-17 | 2020-03-17 | Back pressure ratio equipment suitable for piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211291668U true CN211291668U (en) | 2020-08-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020328345.0U Active CN211291668U (en) | 2020-03-17 | 2020-03-17 | Back pressure ratio equipment suitable for piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211291668U (en) |
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2020
- 2020-03-17 CN CN202020328345.0U patent/CN211291668U/en active Active
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