CN201934691U

CN201934691U - Pointer-type flow balance valve

Info

Publication number: CN201934691U
Application number: CN2011200412588U
Authority: CN
Inventors: 朱杰; 朱宝泉
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-02-18
Filing date: 2011-02-18
Publication date: 2011-08-17
Anticipated expiration: 2021-02-18

Abstract

The utility model relates to a pointer-type flow balance valve, wherein a balance valve (16), a pointer-type flow meter (10), and a stainless steel pressure guiding elbow (11) at the middle are integrated with a front pressure tap interface (14) and a rear pressure tap interface (15) through compression nuts (12) to form the pointer-type flow balance valve. The pointer-type flow balance valve has the advantages that, firstly, not only the flow can be adjusted, but also the flow can be on-line detected and displayed, therefore on-site hydraulic equilibrium adjustment becomes very straightforward and convenient; the flow balance in the whole community can be basically achieved by adjusting for once or twice according to the set flow of the building area and orientation of every door opening; the flow balance of ever branch pipe network can be adjusted as well; secondly, the adjusting characteristics are basically linear, the adjustability is excellent, and the adjusting precision is high; thirdly, the measuring and displaying devices are used for adjusting the circle number, the degree is limited precisely within one-tenth circle, and precise resetting can be achieved by repeated adjustment; and fourthly, both quality adjustment and quantity adjustment can be performed on the system; and the flow balance of the system can be kept even when the system undergoes quantity adjustment.

Description

The pointer-type flow balance valve

Technical field

The utility model relates to a kind of flow measurement and adjusts the pointer flow balance valve of flow, specifically, is the field of configuration that belongs to the control gear of central heating system, according to International Patent Classification, belongs to F24D 19/10.

Background technique

The building heating pipe network is because different from the far and near difference of thermal source, physical features of living in height, though caliber is identical, and the water flow difference of passing through.Flow is big nearby, and flow is little at a distance; The eminence flow is little, and the lower flow is big.This just is called the waterpower imbalance.Will cause uneven in temperature like this.Because the heating-amount loss that causes uneven in temperature can reach 15%-30%.In order to reach hydraulic equilibrium, three kinds of ways are arranged generally.The one, each door opening is established modulating valve.User's temperature is too high, closes point, and is low, turns up.So need repeatedly to regulate repeatedly, and influence each other, actual is infeasible.The 2nd, use equilibrium valve.This valve has a flow control valve, also has two pressure measurement interfaces before and after the valve.Need during adjusting to connect two pressure taps, carry out measurements and calculations with meter specially.Complicated operation, and need a large amount of repeated measurements, equipment price costliness.The 3rd, use the self-powering type Flow valve.This valve utilizes the pressure in the pipe network, regulates pressure reduction automatically, and regime flow is constant.But some accurate smallclothes of this valve are higher to water quality requirement, cost an arm and a leg, and can only matter regulate, and energy is not regulated, and does not have turn-off function.

Existing a kind of pointer Flow valve, the patent No. is ZL200420056897.1, this valve is made of one throttling arrangement, differential pressure gauge, modulating valve, both can regulate flows, but on-line measurement again, show flow, lockable again.According to each door opening area, towards etc., can once adjust, lock total discharge.Hydraulically balanced adjustment just can be finished twice in whole like this sub-district basic.This is a very big progress.But also there are three problems in this device.The one, this modulating valve is a cylindrical stop valve, and aperture 10% changes with the interior whole process of flow that promptly realized, regulates the requirement that Flow characteristics can't satisfy the percentage characteristic.The 2nd, flow velocity is too high when little aperture, can be directed at water hammer.The 3rd, regulating the number of turns does not have metering and display device, is unfavorable for the conformity and the stability of repetitive operation.

Summary of the invention

The purpose of this utility model, it is good to provide a kind of linear adjustment, and regulation range is wide, the degree of regulation height, the online demonstration of flow does not have specific (special) requirements to water quality, and the life-span is long, non-maintaining substantially pointer flow balance valve.

The utility model is achieved in that

Pointer flow balance valve of the present utility model, it is by equilibrium valve, and pointer flowmeter is middlely fused by gland nut and preceding pressure tap interface, back pressure tap interface by stainless steel pilot bend pipe; Described equilibrium valve is by the handwheel assembly, screw, number of turns metering and display device, lock screw, valve gap, valve body, traveller, valve plug, sealing gasket, the young valve of pressure measurement, preceding pressure tap interface, back pressure tap interface is formed, number of turns metering and display device is inner to link to each other with valve gap with screw, valve gap links to each other with valve body with screw, the adjusting handle assembly links to each other with traveller by screw thread, traveller is connected with the valve plug press fit, sealing gasket is bonded on the valve seat of valve body, young valve of pressure measurement and preceding pressure tap interface, back pressure tap is linked to each other by the processing of copper spare respectively and forms, and links to each other with valve body by two pressure tap interface threads.

Advantage of the present utility model: the one, both can regulate flows, but on-line measurement and show flow again.It is very directly perceived, very convenient to regulate hydraulic equilibrium so at the scene.According to each door opening area, towards etc. set Flow-rate adjustment, basic 1 just can reach whole balances twice.The 2nd, valve plug adopts the direct current type structure, and fluid resistance is little; Special valve seat, valve plug shape, making actual Flow characteristics is linear substantially, adjustability is good, the degree of regulation height; During little aperture, valve plug and valve seat form long and narrow throttling passage, and the cavitation vibration of valve has been avoided in the formation of constraint turbulent eddies.The 3rd, the number of turns of modulating valve and the number of degrees all have metering and display device, and the number of degrees are accurate to 1/10th circles, and each adjusting all can be put down in writing, and can accurately recover reset condition during re-adjustments.

Description of drawings

Fig. 1 is pointer flow balance valve elevation.

Fig. 2 is pointer flow balance valve main body plan view.

Embodiment

Below in conjunction with drawings and Examples, the utility model is further described.

Fig. 1 and Fig. 2 are the structural representation of pointer flow balance valve.As can be seen, this pointer flow balance valve is by two most compositions from Fig. 1, Fig. 2.First partly is that equilibrium valve 16, the second partly is pointer flowmeter 10, and the centre is fused this two part by gland nut 12 and preceding pressure tap interface 14, back pressure tap interface 15 by stainless steel pilot bend pipe 11.

Equilibrium valve 16 is made up of handwheel assembly 1, screw 2, number of turns metering and display device 3, lock screw 4, valve gap 5, valve body 6, traveller 7, valve plug 8, sealing gasket 9, pressure measurement is young valve 13, preceding pressure tap interface 14, back pressure tap interface 15.The number of turns metering and display device 3 inner screws of using link to each other with valve gap 5, valve gap 5 usefulness screws 2 link to each other with valve body 6, adjusting handle assembly 1 links to each other with traveller 7 by screw thread, traveller 7 is connected with valve plug 8 press fits, sealing gasket 9 is bonded on the valve seat of valve body 6, pressure measurement is young valve 13 is linked to each other by the processing of copper spare respectively with preceding pressure tap interface 14, back pressure tap 15 and forms, and passes through two pressure tap interface threads and link to each other with valve body 6.

The flow scale of pointer-type flowmeter shows according to this that actual using scope is real fails to be sold at auction surely, so the flow essence is higher in actual using scope, meets usage requirement fully.

The pointer-type flow balance valve is compared with the self-powering type Flow valve, and the one, the accurate online demonstration flow of pointer flowmeter is arranged, regulate intuitive and convenient repeatedly.The 2nd, there are not accurate smallclothes, good to water quality adaptability, fault is few.The 3rd, can the matter adjusting also can measure adjusting, especially in just cold phase, cold phase of end, because flue gas condensing problem, the matter limited adjustment range, often need the part amount to regulate and cooperate, at this moment the self-powering type Flow valve is just infeasible, and pointer flow balance valve is just passable, and each valve changes at equal pace, keeps the hydraulic equilibrium state constant.Four, price is more cheap.

The pointer-type flow balance valve is compared with equilibrium valve, and the accurate online demonstration flow of pointer flowmeter is regulated intuitive and convenient.Equilibrium valve needs special-purpose testing apparatus and the software for calculation of a cover, not only costs an arm and a leg, and the technology specialty complexity, general operations staff does not grasp, and applies difficulty.

The pointer-type flow balance valve is compared with pointer Flow valve, and Flow characteristics is linear substantially, and adjustability is good, regulates more accurate; Number of turns metering and display unit are arranged again, and validity reaches 1/10th circles, when repeating to adjust, can accurately set back.

In a word, the present invention's pointer-type flow balance valve will be regulated the unique effect of performance in the heating pipe network hydraulic equilibrium in China.

Claims

1. pointer flow balance valve, it is characterized in that: it is by equilibrium valve (16), pointer-type flowmeter (10), the centre is fused by gland nut (12) and preceding pressure tap interface (14), back pressure tap interface (15) by stainless steel pilot bend pipe (11); Described equilibrium valve (16) is by handwheel assembly (1), screw (2), number of turns metering and display device (3), lock screw (4), valve gap (5), valve body (6), traveller (7), valve plug (8), sealing gasket (9), the young valve of pressure measurement (13), preceding pressure tap interface (14), back pressure tap interface (15) is formed, number of turns metering and display device (3) is inner to link to each other with valve gap (5) with screw, valve gap (5) links to each other with valve body (6) with screw (2), adjusting handle assembly (1) links to each other with traveller (7) by screw thread, traveller (7) is connected with valve plug (8) press fit, sealing gasket (9) is bonded on the valve seat of valve body (6), young valve of pressure measurement (13) and preceding pressure tap interface (14), back pressure tap (15) is linked to each other by the processing of copper spare respectively and forms, and links to each other with valve body (6) by two pressure tap interface threads.