CN201396553Y - Non-diaphragm improved self-operated flow control valve - Google Patents
Non-diaphragm improved self-operated flow control valve Download PDFInfo
- Publication number
- CN201396553Y CN201396553Y CN2009200118351U CN200920011835U CN201396553Y CN 201396553 Y CN201396553 Y CN 201396553Y CN 2009200118351 U CN2009200118351 U CN 2009200118351U CN 200920011835 U CN200920011835 U CN 200920011835U CN 201396553 Y CN201396553 Y CN 201396553Y
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- China
- Prior art keywords
- pitot tube
- tube
- pitot
- umbrella
- flow control
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- Expired - Fee Related
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Abstract
The utility model relates to a non-diaphragm improved self-operated flow control valve, which is characterized in that a pitot tube and a shell which are respectively provided with two flanges are connected with each other through bolts, and a pitot tube window is arranged on the side wall of a part of the pitot tube which is inserted in the shell; an adjusting cylinder is sleeved at the outer side of the pitot tube, and a bottom hole is arranged on the adjusting cylinder; a spring is arranged between the bottom of the cylinder and the end part of the pitot tube, and a rotatable rotating tubewhich is provided with a rotating tube window and is controlled by a bevel rod is arranged in the pitot tube; the bevel rod passes through a stuffing box, and an adjusting knob is arranged at the upper part of the bevel rod and is fixedly connected with a pointer; and a dial is fixedly connected with the pitot tube, and a manometer tube joint and a kinemometer tube joint are also reserved on the pitot tube and are respectively provided with a manometer and kinemometer. The utility model uses the change in flow velocity to adjust the valve opening, has the advantages of simple structure, low cost, small size and easy adjustment, and does not use a diaphragm, thereby improving reliability.
Description
Affiliated technical field
The utility model belongs to the pipeline fluid flow control device.
Background technique
Existing self-operated flow control valve all is to change the aperture of coming regulating valve according to pressure reduction, thereby reaches the purpose that flow setting type is regulated.The energy provided is provided drives the flap motion in order to obtain pressure reduction, then must use diaphragm to be divided into two cavitys, then under the effect of pressure reduction, diaphragm just moves repeatedly and drives the stem movement that is connected on it, and valve rod drives heavy flap again and moves.Because water temperature is higher in the heat supply network, so diaphragm is easily aging, poor reliability; Since the complex structure heaviness, so cost is higher, and occupation space is also bigger.This not only installs inconvenience, but also has increased the cost of valve open caisson.
Summary of the invention
Task of the present utility model is, design a kind ofly to come controlling opening of valve with change in flow, without diaphragm, and simple in structure, volume is little, cost is low, and the self-operated flow controller that is easy to regulate.
The technical solution adopted in the utility model is, one end has the pitot tube of outlet(discharge) flange dish, appropriate location therebetween, also has a pitot tube flange plate, the extension of pitot tube inserts the housing that all there is flange plate at two ends after having passed a seal washer, pitot tube flange plate and shell flange dish are connected by bolt.
On the tube wall of the pitot tube between mouth flange plate and the pitot tube flange plate, the stuffing box that the umbrella ratch is installed is arranged, the upper end of umbrella ratch is an adjusting knob, and is locked by pinning; One location back-up ring is arranged on the umbrella ratch, and stuffing box and its end cap are by being threaded.
In pitot tube, an end is housed locatees by locating stud, the other end has the umbrella tooth, and with the swivelling pipe of the umbrella ratch engagement of passing stuffing box; On the sidewall of swivelling pipe, have the swivelling pipe window.
The sidewall of the pitot tube in housing has the pitot tube window, at its end outer wall, and the adjusting tube of a bottom opening of suit, it is spacing by the limited post that is connected on the housing to regulate tube.
Between the adjusting tube tube end and pitot tube end, spring is housed.
On the pitot tube tube wall between outlet(discharge) flange dish and the pitot tube flange plate, pressure meter pipe joint, tachometer pipe joint are arranged, and pressure meter and tachometer are housed respectively.
The pointer that on adjusting knob, is connected, and dial is connected on the pitot tube.
Working principle of the present utility model is: according to formula: R=1/2C
D* ρ ν
2S is in the formula: the active force that the R-object is suffered; C
D-resistance coefficient; The area of contour of S-object on the vertical surface of fluid flow direction; ρ-density; ν-flow velocity.When fluid in the pipeline flows, regulate tube bottom and be subjected to a square active force that is directly proportional with rate of flow of fluid.Simultaneously, differ from a pressure reduction, therefore also produce a pressure owing to regulate the inside and outside existence of tube bottom outlet.Above-mentioned two power make a concerted effort and the acting in conjunction of the opposite force of spring under, regulating tube will move, because above-mentioned acting in conjunction power is the power of a change, therefore regulating tube will to-and-fro motion, thereby controlled the open degree of pitot tube window, this has also just regulated flow.
Adjust the flow of setting if desired, can rotate adjusting knob according to the demonstration of pointer and dial.This moment the pitot tube window be rotated the pipe sidewall from the pitot tube inner control open degree of pitot tube, thereby adjusted the setting flow.
This product can be installed in the branch line ingress, and shut off valve is preferably installed at its two ends again, so that overhaul, change.
The beneficial effects of the utility model are: because after having saved the valve rod and flap of diaphragm and heaviness, not only volume is little, cost is low, and has increased reliability.Be based on flow velocity owing to regulate parameter, and square being directly proportional of active force and flow velocity, so the sensitivity of flow demodulator and precision can be improved.Because volume reduces, and has also lowered the cost of the open caisson of valve.
Description of drawings
Fig. 1 is the tectonic maps of no diaphragm modified model self-operated flow control valve;
Among the figure: 1, pressure meter; 2, pressure meter pipe joint; 3, tachometer pipe joint; 4, tachometer 5, adjusting knob; 6, pinning; 7, pointer 8, stuffing box and filler; 9, end cap; 10, dial 11, pitot tube flange plate 12, shell flange dish; 13, housing; 14, inlet flange dish; 15, positioning retainer ring; 16, umbrella ratch; 17, umbrella tooth 18, swivelling pipe; 19, pitot tube window; 20, swivelling pipe window; 21, locating stud; 22, limited post; 23, regulate tube bottom outlet 24, spring; 25, regulate tube 26, outlet(discharge) flange dish: 27, pitot tube: 28, seal washer.
Embodiment
Among Fig. 1, one end has pitot tube (27) appropriate location therebetween of outlet(discharge) flange dish (26) to also have a pitot tube flange plate (11), the extension of pitot tube (27) is after having passed seal washer (28), insert in the housing (13), the two ends of housing (13) have shell flange dish (12) and inlet flange dish (14) respectively, and pitot tube flange plate (11) is connected by bolt with housing method flange plate (12).
On the wall pipe of the pitot tube (27) between outlet(discharge) flange dish (26) and the pitot tube flange plate (11), the stuffing box (8) that umbrella ratch (16) is installed is arranged, the upper end of umbrella ratch (16) is adjusting knob (5), and is locked by pinning (6).Positioning retainer ring (15) is arranged on the umbrella ratch (16), prevent to move on the umbrella ratch (16).Stuffing box is equipped with filler in (8), in order to sealing.Stuffing box (8) and end cap (9) are by being threaded.
In pitot tube (27), an end is housed by locating stud (21) location, the other end has umbrella tooth (17), and with the swivelling pipe (18) of umbrella ratch (16) engagement of passing stuffing box (8).On the sidewall of swivelling pipe (18), have swivelling pipe window (20).
The sidewall of the pitot tube (27) in housing (13) has pitot tube window (19), and at its end outer wall, one of suit has the adjusting tube (25) of regulating tube bottom outlet (23).It is spacing by the limited post (22) that is connected on the housing (13) to regulate tube (25).
Between the end of the tube end of regulating tube (25) and pitot tube (27), spring (24) is installed.
On the tube wall of the pitot tube (27) between outlet(discharge) flange dish (26) and the stuffing box (8), leave pressure meter pipe joint (2) and tachometer pipe joint (3), and pressure meter (1) and tachometer (4) are housed respectively.
On adjusting knob (5), the pointer (7) that is connected, and dial (10) is connected on the pitot tube (27).
Claims (3)
1, a kind of no diaphragm modified model self-operated flow control valve is characterized in that:
---an end has the pitot tube of outlet(discharge) flange dish, appropriate location therebetween, also have a pitot tube flange plate, the extension of pitot tube inserts the housing that all there is flange plate at two ends having passed behind the seal washer, and pitot tube flange plate and shell flange dish are connected by bolt;
---on the tube wall of the pitot tube between outlet(discharge) flange dish and the pitot tube flange plate, the stuffing box that the umbrella ratch is installed is arranged, the upper end of umbrella ratch is an adjusting knob, and is locked by pinning; One location back-up ring is arranged on the umbrella ratch, and stuffing box and its end cap are by being threaded;
---in pitot tube, an end is housed is located by locating stud, the other end has the umbrella tooth, and with the swivelling pipe of the umbrella ratch engagement of passing stuffing box; On the sidewall of swivelling pipe, have the swivelling pipe window;
---the sidewall of the pitot tube in housing, have the pitot tube window, at its end outer wall, the adjusting tube of a bottom opening of suit, it is spacing by the limited post that is connected on the housing to regulate tube;
---between the adjusting tube end and pitot tube end, spring is housed.
2, no diaphragm modified model self-operated flow control valve according to claim 1 is characterized in that: pressure meter pipe joint, tachometer pipe joint are arranged on the tube wall of the pitot tube between outlet(discharge) flange dish and the stuffing box, and pressure meter and tachometer are housed respectively.
3, no diaphragm modified model self-operated flow control valve according to claim 1 is characterized in that: the pointer that on adjusting knob, is connected, and dial is connected on the pitot tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200118351U CN201396553Y (en) | 2009-03-10 | 2009-03-10 | Non-diaphragm improved self-operated flow control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200118351U CN201396553Y (en) | 2009-03-10 | 2009-03-10 | Non-diaphragm improved self-operated flow control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201396553Y true CN201396553Y (en) | 2010-02-03 |
Family
ID=41619062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200118351U Expired - Fee Related CN201396553Y (en) | 2009-03-10 | 2009-03-10 | Non-diaphragm improved self-operated flow control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201396553Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110235748A (en) * | 2019-06-13 | 2019-09-17 | 西安交通大学 | A kind of precision irrigation loine pressure adjusting protective device |
| CN115076519A (en) * | 2022-06-21 | 2022-09-20 | 安徽省特种设备检测院 | Internal detector and self-balancing speed regulation method |
-
2009
- 2009-03-10 CN CN2009200118351U patent/CN201396553Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110235748A (en) * | 2019-06-13 | 2019-09-17 | 西安交通大学 | A kind of precision irrigation loine pressure adjusting protective device |
| CN110235748B (en) * | 2019-06-13 | 2021-03-02 | 西安交通大学 | Pressure adjusting and protecting device for precision irrigation pipeline |
| CN115076519A (en) * | 2022-06-21 | 2022-09-20 | 安徽省特种设备检测院 | Internal detector and self-balancing speed regulation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100203 Termination date: 20130310 |