CN216867637U - Self-operated differential pressure valve capable of measuring water flow - Google Patents
Self-operated differential pressure valve capable of measuring water flow Download PDFInfo
- Publication number
- CN216867637U CN216867637U CN202122777759.9U CN202122777759U CN216867637U CN 216867637 U CN216867637 U CN 216867637U CN 202122777759 U CN202122777759 U CN 202122777759U CN 216867637 U CN216867637 U CN 216867637U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- self
- hole
- differential pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The utility model relates to the technical field of self-operated differential pressure valves, in particular to a self-operated differential pressure valve capable of measuring water flow; the self-operated differential pressure valve comprises a valve inlet, a valve outlet and a valve body, wherein a flow-limiting pore plate is fixedly arranged on the inner wall of the valve inlet or the valve outlet, and a pressure measuring joint A and a pressure measuring joint B for measuring the water flow pressure in a pipeline are respectively arranged on two sides of the flow-limiting pore plate; according to the utility model, the flow limiting pore plate is arranged, and the pressure measuring joint A and the pressure measuring joint B are respectively arranged on the two sides of the flow limiting pore plate, so that the problem of flow measurement of a differential pressure valve pipeline is solved, the practicability is high, and the method is worthy of popularization.
Description
Technical Field
The utility model relates to the technical field of self-operated differential pressure valves, in particular to a self-operated differential pressure valve capable of measuring water flow.
Background
The self-operated differential pressure valve is called a differential pressure valve for short, does not need external energy, can be automatically adjusted by depending on the pressure change of a controlled medium, automatically eliminates the residual pressure head of a pipe network and the flow deviation caused by pressure fluctuation, keeps the pressure difference of an inlet and an outlet of a user constant, and is beneficial to stabilizing the operation of a system; the self-operated differential pressure valve ensures constant differential pressure of a load by means of different opening strokes of a valve core, and the valve core is required to continuously and automatically adjust the opening height according to the differential pressure change of the load.
When measuring the flow in the pipeline of the water system, such as the pipeline of a static balance valve, the KV value of the valve at the moment and the differential pressure delta P between two ends of the valve need to be known, according to the formula:
the valve core opening degree of the self-operated differential pressure valve is changed at any time, and the valve core opening degree does not have a fixed KV value, so that the flow value cannot be calculated by pressure difference.
SUMMERY OF THE UTILITY MODEL
The utility model aims to: the self-operated differential pressure valve capable of measuring the water flow is provided to solve the problem that in the prior art, when the flow is required to be known by a branch pipeline of the self-operated differential pressure valve, a static balance valve or a flow meter is required to be arranged before the load, so that the measurement cost is increased.
The technical scheme of the utility model is as follows: the self-operated differential pressure valve comprises a valve inlet, a valve outlet and a valve body, wherein a flow-limiting pore plate is fixedly arranged on the inner wall of the valve inlet or the valve outlet, and a pressure measuring joint A and a pressure measuring joint B for measuring the water flow pressure in a pipeline are respectively arranged on two sides of the flow-limiting pore plate.
Preferably, a valve body boss and a connecting flange are arranged on the cylindrical end part of the valve body, which is positioned at the valve inlet or the valve outlet provided with the flow-limiting orifice plate; the flange is provided with a flange boss at one end close to the center of the valve body, the pressure measuring joint A is arranged on the valve body boss, and the pressure measuring joint B is arranged on the flange and the flange boss.
Preferably, the valve body boss is provided with a hole A along the radial direction of the valve body, and the flange boss are provided with a hole B along the radial direction of the valve body together; the pressure measuring joint A is in threaded connection with the hole A, and the pressure measuring joint B is in threaded connection with the hole B.
Preferably, a valve body boss and a connecting flange are arranged on the cylindrical end part of the valve body, which is positioned at the valve inlet or the valve outlet provided with the flow-limiting orifice plate; the pressure measuring joint A is arranged on a boss of the valve body, and the pressure measuring joint B is arranged on the flange.
Preferably, the valve body boss is provided with a hole A along the radial direction of the valve body, and the flange is provided with a hole B along the radial direction of the valve body; the pressure measuring joint A is in threaded connection with the hole A, and the pressure measuring joint B is in threaded connection with the hole B.
Preferably, the holes a and B are all multi-diameter through holes, and each of the holes a and B includes a threaded portion and a small-diameter hole portion.
Preferably, the line connecting the pressure measuring joint A and the pressure measuring joint B is parallel to the horizontal axis of the valve body.
Preferably, the restriction orifice plate is fixedly arranged at the valve inlet or the valve outlet through welding or screws.
Preferably, the outer edge of the flow-limiting orifice plate is provided with external threads, the inner wall of the valve inlet or the valve outlet is provided with internal threads, and the flow-limiting orifice plate is connected with the internal threads of the valve inlet or the valve outlet.
Compared with the prior art, the utility model has the advantages that:
the utility model fixes a flow-limiting pore plate on the inner wall of the valve inlet or the valve outlet of the self-operated differential pressure valve, and then respectively arranges a pressure measuring joint A and a pressure measuring joint B on both sides of the flow-limiting pore plate, because the inner hole of the flow-limiting pore plate is fixed, the KV value of the flow-limiting pore plate is accurately measured before the factory leaves, the measuring instrument measures the water flow pressure value of the two points through the pressure measuring joint A and the pressure measuring joint B, and then the instant differential pressure value of the two points is obtained, which can be based on the formula
Calculating a flow value; compared with the self-operated differential pressure valve with the original structure, the self-operated differential pressure valve has the advantages that the cost is increased very little and can be almost ignored, but the problem that the differential pressure valve is difficult to measure the flow in a pipeline is solved, the practicability is very high, and the self-operated differential pressure valve is worthy of popularization.
Drawings
The utility model is further described with reference to the following figures and examples:
fig. 1 is a schematic structural diagram of a self-operated differential pressure valve capable of measuring water flow according to an embodiment of the present invention;
fig. 2 is a partial structural schematic view of a self-operated differential pressure valve capable of measuring water flow according to the present embodiment;
FIG. 3 is a schematic diagram of the exploded structure of FIG. 2;
FIG. 4 is a schematic cross-sectional view taken along line A-A of FIG. 2;
FIG. 5 is a schematic cross-sectional view of a portion of the structure of FIG. 3;
FIG. 6 is a schematic diagram of a prior art self-operated differential pressure valve configured to measure water flow in a pipeline;
fig. 7 is a schematic diagram of a pipeline configuration of a self-operated differential pressure valve capable of measuring water flow rate according to the embodiment when the water flow rate in the pipeline needs to be measured.
Wherein: 1. valve entry, 2, valve export, 3, valve body, 4, restricted orifice board, 5, valve body boss, 6, flange, 7, flange boss, 8, pressure measurement joint A, 9, pressure measurement joint B, 10, hole A, 11, hole B, 111, screw thread portion, 112, path hole portion.
Detailed Description
The present invention will be further described in detail with reference to the following specific examples:
in the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Example one
The self-operated differential pressure valve in the first embodiment may be a Y-shaped inclined valve body, a straight valve body, etc., that is, self-operated differential pressure valves of various structures are all suitable, and the suitable medium is ice water or hot water, as shown in fig. 1-4, a self-operated differential pressure valve capable of measuring water flow comprises a valve inlet 1, a valve outlet 2, a valve body 3, a flow-limiting orifice plate 4 fixedly arranged on the inner wall of the valve inlet 1 or the valve outlet 2, and a pressure measuring joint A8 and a pressure measuring joint B9 respectively arranged on two sides of the flow-limiting orifice plate 4 for measuring the water flow pressure in a pipeline; a valve body boss 5 and a connecting flange 6 are arranged on the cylindrical end part of the valve body 3 where the valve inlet 1 or the valve outlet 2 provided with the flow-limiting orifice plate 4 is positioned; one end of the flange 6 close to the center of the valve body 3 is provided with a flange boss 7; the pressure measuring joint A8 is arranged on the valve body boss 5, and the pressure measuring joint B9 is arranged on the flange 6 and the flange boss 7; it should be noted that the valve body boss 5 may be disposed at any position of the cylindrical end portion of the valve body 3 where the valve inlet 1 or the valve outlet 2 is located, and the flange boss 7 may be disposed at any position of one end of the flange 6 close to the center of the valve body 3, and the position is not limited; the valve body boss 5 is provided with a hole A10 along the radial direction of the valve body 3, and the flange 6 and the flange boss 7 are provided with a hole B11 along the radial direction of the valve body 3; a pressure measuring joint A8 is in threaded connection with the hole A10, and a pressure measuring joint B9 is in threaded connection with the hole B11; in this embodiment, the line connecting the pressure measuring joint A8 and the pressure measuring joint B9 is parallel to the horizontal axis of the valve body 3, the arrangement is more beautiful in appearance and more convenient in measurement, and in practical application, the measuring instrument measures the water flow pressure values of the two points through the pressure measuring joint A8 and the pressure measuring joint B9.
More specifically, as shown in fig. 5, each of the holes a10 and B11 is a multi-diameter through hole, and each of the holes a10 and B11 includes a threaded portion 111 and a small-diameter hole portion 112; in this embodiment, the threaded portion 111 is PT1/4", which is a 55 ° thread for a sealed circular cone pipe, and has an outer diameter of 13.158mm, an inner diameter of 11.446mm, and a number of threads per inch of 19; the depth of the screw part 111 is within 15mm, and the diameter of the small-diameter hole part 112 is 3-4 mm; the problem that the thickness of the small-caliber flange is not enough for drilling the hole B is solved by arranging the flange boss 7.
In the first embodiment, the fixing manner of the restriction orifice 4 and the valve inlet 1 or the valve outlet 2 is as follows: the flow-limiting orifice plate 4 is fixedly arranged at the valve inlet 1 or the valve outlet 2 through welding or screws; or the outer edge of the flow-limiting orifice plate 4 is provided with external threads, the inner wall of the valve inlet 1 or the valve outlet 2 is provided with internal threads, and the flow-limiting orifice plate 4 is connected with the internal threads of the valve inlet 1 or the valve outlet 2.
The specific working principle of the first embodiment is as follows: the inner hole of the flow-limiting orifice plate 4 is fixed, the KV value of the flow-limiting orifice plate 4 is accurately measured before leaving the factory, the measuring instrument measures the water flow pressure values of the two points through the pressure measuring connector A8 and the pressure measuring connector B9, the instant pressure difference value of the two points is obtained, and the instant pressure difference value is obtained according to a formula
And calculating the flow value. In order to know the flow rate, the branch pipeline of the self-operated differential pressure valve with the original structure needs to be provided with a static balance valve before loading, or a flowmeter (as shown in fig. 6) is directly installed, and now only one self-operated differential pressure valve is needed (as shown in fig. 7).
Example two
The second embodiment is different from the first embodiment in that: a valve body boss 5 and a connecting flange 6 are arranged on the cylindrical end part of the valve body 3, which is positioned at the valve inlet 1 or the valve outlet 2 provided with the flow-limiting orifice plate 4; the pressure measuring joint A8 is arranged on the valve body boss 5, and the pressure measuring joint B9 is arranged on the flange 6; the valve body boss 5 is provided with a hole A10 along the radial direction of the valve body 3, and the flange 6 is provided with a hole B11 along the radial direction of the valve body 3; a pressure measuring joint A8 is in threaded connection with the hole A10, and a pressure measuring joint B9 is in threaded connection with the hole B11; namely, when the flange 6 is a large-diameter flange 6 and the thickness is enough to directly drill the hole B11, the flange boss 7 is not needed.
In summary, in the self-operated differential pressure valve capable of measuring water flow rate of the present invention, the inner wall of the valve inlet 1 or the valve outlet 2 may be fixedly provided with the flow-limiting orifice plate 4, and both sides of the flow-limiting orifice plate 4 are respectively provided with the pressure measuring joint A8 and the pressure measuring joint B9, which both can play a role of measuring water flow rate in the pipeline; when the thickness of the small-caliber flange 6 is not enough to drill the hole B11, the pressure measuring joint B9 is arranged on the flange 6 and the flange boss 7, and when the flange 6 is the large-caliber flange 6 and the thickness is enough to directly drill the hole B11, the flange boss 7 is not needed to be arranged, and the pressure measuring joint B9 is directly arranged on the flange 6.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it is therefore intended that the present embodiments be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (9)
1. A self-operated differential pressure valve capable of measuring water flow comprises a valve inlet, a valve outlet and a valve body, and is characterized in that: and a flow-limiting pore plate is fixedly arranged on the inner wall of the inlet or the outlet of the valve, and a pressure measuring joint A and a pressure measuring joint B for measuring the water flow pressure in the pipeline are respectively arranged on two sides of the flow-limiting pore plate.
2. The self-operated differential pressure valve capable of measuring water flow according to claim 1, wherein: the valve body is positioned at the valve inlet provided with the flow-limiting orifice plate or the cylindrical end part where the valve outlet is positioned, and a valve body boss and a connecting flange are arranged on the cylindrical end part; the flange is provided with a flange boss at one end close to the center of the valve body, the pressure measuring joint A is arranged on the valve body boss, and the pressure measuring joint B is arranged on the flange and the flange boss.
3. The self-operated differential pressure valve capable of measuring water flow according to claim 2, wherein: the valve body boss is provided with a hole A along the radial direction of the valve body, and the flange boss are provided with a hole B along the radial direction of the valve body together; the pressure measuring joint A is in threaded connection with the hole A, and the pressure measuring joint B is in threaded connection with the hole B.
4. The self-operated differential pressure valve capable of measuring water flow according to claim 1, wherein: the valve body is positioned at the valve inlet provided with the flow-limiting orifice plate or the cylindrical end part where the valve outlet is positioned, and a valve body boss and a connecting flange are arranged on the cylindrical end part; the pressure measuring joint A is arranged on a boss of the valve body, and the pressure measuring joint B is arranged on the flange.
5. The self-operated differential pressure valve capable of measuring water flow according to claim 4, wherein: the valve body boss is provided with a hole A along the radial direction of the valve body, and the flange is provided with a hole B along the radial direction of the valve body; the pressure measuring joint A is in threaded connection with the hole A, and the pressure measuring joint B is in threaded connection with the hole B.
6. The self-operated differential pressure valve capable of measuring water flow according to claim 3 or 5, wherein: the hole A and the hole B are all multi-diameter through holes, and both the hole A and the hole B comprise threaded portions and small-diameter hole portions.
7. The self-operated differential pressure valve capable of measuring water flow according to claim 6, wherein: and the connecting line of the pressure measuring joint A and the pressure measuring joint B is parallel to the horizontal axis of the valve body.
8. The self-operated differential pressure valve capable of measuring water flow according to claim 1, wherein: the flow-limiting orifice plate is fixedly arranged at the inlet or the outlet of the valve through welding or screws.
9. The self-operated differential pressure valve capable of measuring water flow according to claim 1, wherein: the outer edge of the flow-limiting orifice plate is provided with external threads, the inner wall of the valve inlet or the valve outlet is provided with internal threads, and the flow-limiting orifice plate is connected with the internal threads of the valve inlet or the valve outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122777759.9U CN216867637U (en) | 2021-11-12 | 2021-11-12 | Self-operated differential pressure valve capable of measuring water flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122777759.9U CN216867637U (en) | 2021-11-12 | 2021-11-12 | Self-operated differential pressure valve capable of measuring water flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216867637U true CN216867637U (en) | 2022-07-01 |
Family
ID=82125102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122777759.9U Active CN216867637U (en) | 2021-11-12 | 2021-11-12 | Self-operated differential pressure valve capable of measuring water flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216867637U (en) |
-
2021
- 2021-11-12 CN CN202122777759.9U patent/CN216867637U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7047822B2 (en) | Devices, installations and methods for improved fluid flow measurement in a conduit | |
| CN105403266B (en) | A kind of heavy caliber Ultrasonic water meter automatically corrected and its bearing calibration | |
| CN114061677A (en) | Multichannel heavy-calibre ultrasonic water meter of column transducer layering overall arrangement | |
| CN201828300U (en) | Flange clamp type temperature and pressure compensation vortex street flowmeter | |
| CN216867637U (en) | Self-operated differential pressure valve capable of measuring water flow | |
| CN102589623A (en) | High-accuracy wide-range flow meter | |
| CN103674146A (en) | Mass flow meter based on ultrasonic flow meter | |
| CN201262559Y (en) | Plug-in flow measuring device based on MEMS sensor | |
| CN101881639A (en) | V-cone flow meter and use method thereof | |
| CN212058917U (en) | Differential pressure type electronic flow switch | |
| CN209783694U (en) | Differential pressure type liquid level transmitter | |
| CN208398948U (en) | It is a kind of for measuring the throttling set pressure vessel of flux of moisture | |
| CN209878028U (en) | Low-resistance flow meter | |
| CN210802568U (en) | Arnuba formula gas metering device | |
| CN209342165U (en) | Double flute ring wedge differential pressure device | |
| CN208043137U (en) | Adjusting type flowmeter | |
| CN208567986U (en) | A kind of flowmeter | |
| CN111473829A (en) | Multi-channel variable-range flowmeter | |
| CN108362343A (en) | Integrated symmetrical flowmeter | |
| CN214224240U (en) | Gas flowmeter | |
| CN219694239U (en) | Round wedge flowmeter | |
| CN221006638U (en) | Fluid pressure measuring device | |
| CN205843733U (en) | A kind of fluid measurement instrument | |
| CN201697646U (en) | V-shaped cone flow meter | |
| CN210689731U (en) | Wedge type gas metering device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |