CN2071282U - Automatic balance valve - Google Patents
Automatic balance valve Download PDFInfo
- Publication number
- CN2071282U CN2071282U CN 90206426 CN90206426U CN2071282U CN 2071282 U CN2071282 U CN 2071282U CN 90206426 CN90206426 CN 90206426 CN 90206426 U CN90206426 U CN 90206426U CN 2071282 U CN2071282 U CN 2071282U
- Authority
- CN
- China
- Prior art keywords
- valve
- regulating valve
- self regulating
- valve body
- manual adjustment
- 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.)
- Withdrawn
Links
- 230000001105 regulatory effect Effects 0.000 claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 210000000214 mouth Anatomy 0.000 claims description 14
- 210000000476 body water Anatomy 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- Safety Valves (AREA)
Abstract
The utility model relates to a flow automatic control device that is arranged in the constant supply system of loop or open circuit, for example the flow automatic balance valve among the heating system. The valve mainly comprises a valve body, an automatic regulating valve and a manual regulating valve. The valve rod of the automatic regulating valve is connected with a diaphragm integrated with the valve body; the front of the valve clack of the manual regulating valve installed in parallel with the automatic regulating valve and the lower part of the diaphragm form a high pressure cavity, and the rear of the valve clack of the manual regulating valve and the upper part of the diaphragm form a low pressure cavity. The valve balances the flow rate by the change in the opening degree of the automatic regulating valve caused by the change in the differential pressure between the upper and lower sides of the manual regulating valve. The valve has the advantages of simple structure, low cost, convenient use and maintenance and wide application range.
Description
The utility model relates to flow control device in a kind of concentrated hot-water heating heating system, particularly a kind of flow automatic balance valve.
Ubiquity waterpower is controlled imbalance in hot water system at present, and promptly system's near-end flow when operation is big, and the far-end flow is little, thereby makes the hot user indoor temperature of considerable part too high or low excessively.In order to address this problem, a kind of equilibrium valve that is called Flow restrictor of use is arranged in system, this limiter is that one is the manual adjustment valve at water inlet oral cavity (hyperbaric chamber) and two valves of the coaxial relative installation in the joint of water outlet oral cavity (low-pressure cavity), and one is self regulating valve.Manual adjustment can artificially be adjusted and be fixed on the aperture.Self regulating valve is by the diaphragm in the bellows of being fixed on that is connected with stem bottom, and the balance bellows of suit is formed on the valve rod.Diaphragm cavity of resorption and the bellows outside of self regulating valve by communicating with hyperbaric chamber, and diaphragm epicoele that communicates with low-pressure cavity and the pressure difference between the bellows inboard, and under the effect of the spring in diaphragm epicoele spring and bellows, the variation in pressure of hyperbaric chamber is digested to constant all the time value, thereby guarantee the aperture of valve, keep constant flow.Therefore this limiter once mixes up just and can control required flow automatically under the situation without other power, has solved aforesaid problem.But this limiter structure is comparatively complicated, and bellows is made complicated, and therefore the cost height has limited and promoted the use of.
The purpose of this utility model provides a kind of flow automatic balance valve scheme that can reach automatic control flow non-ripple pipe simple in structure again equally, to overcome deficiency of the prior art.
The purpose of this utility model is to realize like this.
Automatic balancing valve is equipped with the self regulating valve that preloading spring is arranged 12 and the manual adjustment valve 29 that are connected on the diaphragm in valve body.The flap 19 of self regulating valve that is characterised in that of the present utility model is loaded on valve inleting water oral cavity 21, in diaphragm 9 bottom surfaces that the valve rod afterbody connects and the automatic hyperbaric chamber of adjusting between seat valve rod tail end 24 is housed and stretches in the outer manual adjustment valve of valve body, the valve seat below of manual adjustment valve is valve body water outlet oral cavity 33; Above the diaphragm that the self regulating valve afterbody connects with the valve body roof between low-pressure cavity in spring 3 is installed, low-pressure cavity is connected to pipeline 23 and is communicated with the water outlet oral cavity.
Below in conjunction with embodiment of the present utility model and accompanying drawing automatic balancing valve is described in detail.
Fig. 1 equilibrium valve cross-sectional schematic.
The valve body of automatic balancing valve can be divided into three parts promptly: water oral cavity 21, water outlet oral cavity 33 and half hyperbaric chamber are arranged into and be provided with self regulating valve seat 17 and the following valve body 20 of manual adjustment valve seat 32, the middle valve body 13 of half hyperbaric chamber and self regulating valve bar guide holder 11 and manual adjustment stem guiding seat 26 is arranged; And low-pressure cavity upper valve body 4.In, down Sealing 16 is equipped with in the valve body joint, and be connected firmly with flange screw 8,15.
The stem guiding seat ring of the self regulating valve of automatic balancing valve has a plurality of through holes 14 on connecting plate, so that hyperbaric chamber is communicated with the diaphragm bottom.
The self regulating valve of automatic balancing valve is parallel with the axis of manual adjustment valve.
Automatic balancing valve is covered with guard shield 22 at the shank that exposes of manual adjustment valve, and valve rod and guide holder be for being threaded, and establishes seal ring 27 at oral area.
Working principle of the present utility model is: the aperture of setting up the manual adjustment valve according to heating user needs flow.Hot water from heat supply source in running enters into water oral cavity, flows into heating system again from the water outlet oral cavity by hyperbaric chamber.When flow strengthens, the pressure reduction on manual adjustment valve both sides is increased, promptly diaphragm is subjected to power upwards greater than downward power, thereby diaphragm drive flap is up, turns down self regulating valve, has reduced flow, and the motion of self regulating valve stops when the diaphragm applied force balance.When flow reduces, the self regulating valve reversing motion, reason is identical.
Advantage of the present utility model is as follows:
1, simple in structure, do not use precision element, thereby cost is low, use and maintenance is convenient;
2, of many uses, can be used in the constant feed system of any loop or open circuit. Such as heating system; In several boilers that are installed in parallel (or freezing unit), for guaranteeing that every unit can both obtain design discharge and carry out balance etc.
Claims (4)
1, a kind of automatic balancing valve is equipped with a self regulating valve that preloading spring is arranged and a manual adjustment valve that is connected on the diaphragm in valve body, the flap of self regulating valve that is characterised in that of the present utility model is loaded on the valve inleting water oral cavity, a valve rod tail end is housed in diaphragm bottom surface that the valve rod afterbody connects and the hyperbaric chamber between the self regulating valve seat stretches in the outer manual adjustment valve of valve body, the valve seat below of manual adjustment valve is valve body water outlet oral cavity; Above the diaphragm that the self regulating valve afterbody connects and in the low-pressure cavity between the valve body roof spring is installed, low-pressure cavity is connected to pipeline and is communicated with the water outlet oral cavity.
2,, it is characterized in that valve body is made up of three parts according to the described equilibrium valve of claim 1; That is: water oral cavity, water outlet oral cavity and hyperbaric chamber and be provided with the self regulating valve seat and the following valve body of manual adjustment valve seat arranged into; The center valve body that hyperbaric chamber and self regulating valve bar guide holder and manual adjustment stem guiding seat are arranged; And low-pressure cavity upper valve body; Sealing is equipped with in the joint of three part valve bodies, and is connected firmly with flange screw.
3,, it is characterized in that on the ring-type connecting plate of stem guiding seat of self regulating valve through hole being arranged according to claim 1 or 2 described equilibrium valves.
4,, it is characterized in that self regulating valve is parallel with the axis of manual adjustment valve according to claim 1 or 2 described equilibrium valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90206426 CN2071282U (en) | 1990-05-18 | 1990-05-18 | Automatic balance valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90206426 CN2071282U (en) | 1990-05-18 | 1990-05-18 | Automatic balance valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2071282U true CN2071282U (en) | 1991-02-13 |
Family
ID=4887017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90206426 Withdrawn CN2071282U (en) | 1990-05-18 | 1990-05-18 | Automatic balance valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2071282U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065749A (en) * | 2015-08-12 | 2015-11-18 | 无锡乐华自动化科技有限公司 | Speed adjusting method of piston type flow speed control valve |
| CN105156731A (en) * | 2015-08-12 | 2015-12-16 | 无锡乐华自动化科技有限公司 | Piston type flow speed control valve |
| CN106641296A (en) * | 2016-11-07 | 2017-05-10 | 武汉船用机械有限责任公司 | Quick-switching-off and regulating valve |
-
1990
- 1990-05-18 CN CN 90206426 patent/CN2071282U/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065749A (en) * | 2015-08-12 | 2015-11-18 | 无锡乐华自动化科技有限公司 | Speed adjusting method of piston type flow speed control valve |
| CN105156731A (en) * | 2015-08-12 | 2015-12-16 | 无锡乐华自动化科技有限公司 | Piston type flow speed control valve |
| CN106641296A (en) * | 2016-11-07 | 2017-05-10 | 武汉船用机械有限责任公司 | Quick-switching-off and regulating valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |