CN208951374U - It is visual to adjust differential-pressure bypass valve - Google Patents
It is visual to adjust differential-pressure bypass valve Download PDFInfo
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- CN208951374U CN208951374U CN201821676956.3U CN201821676956U CN208951374U CN 208951374 U CN208951374 U CN 208951374U CN 201821676956 U CN201821676956 U CN 201821676956U CN 208951374 U CN208951374 U CN 208951374U
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- pressure
- plastic casing
- valve body
- differential
- bypass valve
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Abstract
The utility model relates to a kind of visual adjusting differential-pressure bypass valves, it is used for controlling water system pressure difference, mainly it is made of plastic casing, pressure cap and valve body, it is characterized by: plastic casing is whole in a tubular form, top production is in the bottleneck shape with small sircle hole, closure periphery injection molding is in hexagonal big nut shape, and lateral surface is molded with symmetrical pressure at right angle scale slot, and end is preset with external screw joint；Adjusting screw rod is installed, top is connected with manual knob by lock screw in plastic casing；Pressure cap is made of metal material, and in octagonal rectangular recessed blank pipe shape, tubular edge presets internal thread interface for upper end forging, and lower end forging has external screw joint, and tubular center offers axis hole, is connected with the movable axis of recess type spring base in axis hole by locking nut；Valve body is made of three-port structure, after plastic casing, pressure cap and valve body screw thread connected and composed into a whole differential-pressure bypass valve.The beneficial effect is that: the differential-pressure bypass valve is structurally reasonable, practical, and low manufacture cost.
Description
Technical field
The utility model belongs to the pressure difference bypass field of water system, and in particular to a kind of to apply in Heating,Ventilating and Air Conditioning and industry water
Differential-pressure bypass valve more particularly to a kind of visual adjusting differential-pressure bypass valve on small-sized heating ventilation air-conditioning system in system.
Background technique
Currently, differential-pressure bypass valve used in the prior art, is briefly a kind of logical in Heating,Ventilating and Air Conditioning water system
Bypass mode is crossed to balance the control valve of pressure difference between water supply and return water system.The cold and hot amount that system can be improved in the valve utilizes
Rate keeps the precise constant for return water pressure difference；According to the aperture of terminal thermic load situation adjust automatically by-passing valve, in end loads
Very little or when being zero, also can guarantee required water flow in Heating,Ventilating and Air Conditioning unit, air-conditioner set is protected to play energy conservation
Consumption reduction effect.
Small central air conditioning unit in existing heating ventilation air-conditioning system, including air-cooled heat pump, water source, earth source heat pump, mainly
Applied to home dwelling, the air conditioning of villa and apartment, and home dwelling air-conditioning opens simultaneously coefficient of utilization relatively low, daytime
Using parlor, room is used at night.Small central air conditioning unit require stablized by the water flow of host it is constant, only in this way
The work of the host just reliable and stable operation of meeting.If air conditioning terminal installs the electric three passes controlled according to room temperature indoors
Valve, room temperature arrive, and three-way electric valve is closed；Air conditioner water is no longer pass through fan coil and is bypassed to backwater end, only this
Sample just can guarantee not to be changed by host water flow with the water flow that opens or closes of end motor-driven valve.But due to
Selection host is to cause energy unrestrained when being as a result easy to appear only opening part air conditioning terminal according to existing roomed load accumulation
Take, while host frequent start-stop situation also occurs.
However, existing differential-pressure bypass valve use is in small central air conditioning water system, generally existing small product size is big, adjusts essence
The problems such as it is poor to spend, and caliber is big；Product is manufactured using cast iron, is easy to be rusted, so that replacement cost is got higher, is led to use cost
It is high；And it is often not suitable in residential central air conditioner unit system and uses.
For this purpose, being directed to the pressure difference regulation problem of small central air conditioner system, the small-sized Heating,Ventilating and Air Conditioning system of family formula is especially adapted to
The differential-pressure bypass valve used on system.For this purpose, we, which need to invent a kind of degree of regulation, will get well, using wanting outside convenient adjustment spring
The visual adjusting differential-pressure bypass valve for the anti-corrosion set.
Utility model content
Differential-pressure bypass valve volume is big, degree of regulation is poor to solve in background technique, is not suitable with the small-sized Heating,Ventilating and Air Conditioning system of family formula
System uses problem, and the utility model especially provides a kind of visual adjusting differential-pressure bypass valve of anti-corrosion that adjustment spring is external.
In order to achieve the above objectives, the design of the utility model is:
It is easy to be rusted problem for existing differential-pressure bypass valve, the utility model, which has been specifically designed, a kind of will adjust pressure difference
The technical solution of spring structure and Heating,Ventilating and Air Conditioning water system separation design, i.e., by spring structure it is external air-conditioner water system with
Outside.Core of the present invention is: by designing by a kind of external pressure difference for adjusting indicating graduation with pressure at right angle of pressure regulating spring
Port valve can allow user directly to set bypass pressure difference according to the actual conditions of engineering, be that the pressure difference on small-sized air condition system bypasses control
System provides novel product design with universal, and provides convenient application scheme for in-site installation and debugging.
According to above-mentioned design, the technical solution adopted in the utility model is:
A kind of visual adjusting differential-pressure bypass valve, uses for controlling water system pressure difference, mainly by plastic casing, pressure cap and valve
Body is constituted, it is characterised in that:
The plastic casing is whole in a tubular form, and top production is in the bottleneck shape with small sircle hole, and closure periphery injection molding is in hexagonal
Big nut shape, lateral surface are molded with symmetrical pressure at right angle scale slot, and end is preset with external screw joint；Wherein, plastic housing
Adjusting screw rod is installed in vivo, top is connected with manual knob by lock screw；
The pressure cap is using metal material production, and in octagonal rectangular recessed blank pipe shape, tubular edge is default interior for upper end forging
Hickey, lower end forging have external screw joint, and tubular center offers axis hole, and axis hole is interior to be connected with recess by locking nut
The movable axis of type spring base；
The valve body is made of three-port structure, after that plastic casing, pressure cap and valve body screw thread connected and composed one is whole
Differential-pressure bypass valve.
Wherein, the adjusting screw rod is that a upper end processes the pillar segment that is square, and square column section top is prefabricated with screw
Hole is prefabricated with bayonet slot below square column section, and whole section of lower end is machined with the metallic copper bar of sinistral external thread；The adjusting screw rod
On sinistral external thread on be screwed into left-handed nut, put on tuning drive gear, the rear small sircle hole for passing through plastic casing top, and in plastics
Case top is by circlip control in bayonet slot.
Especially built-in among the plastic casing and pressure cap to have the adjustment spring for adjusting pressure, adjustment spring setting is being adjusted
It saves between the spring base on the tuning drive gear and pressure cap on screw rod.
It is also configured with ○ shaped circle on the movable axis and rubber sheet gasket is constituted, wherein contacts prefabricated on the movable axis of axis hole
There is two pass groove, the ○ shaped circle that sealing uses is arranged on groove, rubber sheet gasket is set in the trisection guiding of movable axis forging
Plate end.
The tuning drive gear is the cylindrical plastic piece for being molded with the center band circular hole of both wings pointer, and upper part hollow out has kiss
The hexagonal indent for closing left-handed nut shape is rectangular, and bottom is molded with the round base of protrusion, and both wings pointer is fastened on plastic housing
In the pressure at right angle scale slot of external side.
Wherein, above scheme is further:
After plastic casing is connect with pressure cap, when turning the manual knob on plastic casing top, in adjustment spring active force
Lower left-handed nut drives tuning drive gear to move up and down, i.e., tuning drive gear can be under the active force of intermediate regulations spring upward or downward
It is mobile；
When valve body inlet and outlet pressure difference is greater than preset pressure difference, movable axis overcomes the pressure of adjustment spring to moving up
Dynamic, so that valve body aperture be made to become larger, the water flow of bypass becomes larger；
When valve body inlet and outlet pressure difference is less than preset pressure difference, movable axis overcomes the pressure of adjustment spring to moving down
Dynamic, so that valve body aperture be made to become smaller, the water flow of bypass becomes smaller, to reach the control and regulation to valve body inlet and outlet pressure difference.
Visual adjusting differential-pressure bypass valve described in the utility model, mainly solves in no extrinsic motive, leans on
System pressure duty itself effectively increases safe operation coefficient, more safer than traditional motor-driven pressure-difference by-passing valve reliable；Together
When, solve the probability that motor-driven pressure-difference by-passing valve causes unit to damage the dependence of electricity and circuit when something goes wrong, and using should
The small-sized self-operated type differential-pressure bypass valve of kind is easily installed, and saves expense cost.
The differential-pressure bypass valve designed by adopting the above technical scheme, its advantage is that:
1, for this kind of differential-pressure bypass valve using a kind of visual adjusting design structure, adjusting is easy to use, can efficiently control
Regulating effect.
2, the differential-pressure bypass valve uses the external design of critical adjustment spring, and differential-pressure bypass valve is not direct under the overall leadership with water system
Road contact, spring is placed oneself in the midst of other than water system, so that spring is not easy to get rusty, directly increases the service life of differential-pressure bypass valve.
3, the differential-pressure bypass valve solves water system sealing problem using two pass ○ shaped circle, meanwhile, mouth is suitable for below valve body
In the perpendicular type or through-type valve body of DN10~DN50 model, pressure can fit is answering within PN10 diameter, has saved later maintenance
With the use cost of replacement differential-pressure bypass valve.
The beneficial effect is that: the differential-pressure bypass valve is structurally reasonable, practical, and low manufacture cost.
Detailed description of the invention
Attached drawing 1 is the overall appearance structural schematic diagram of the utility model；
Attached drawing 2 is the integral perspective structural schematic diagram of the utility model；
Attached drawing 3 is that the utility model connects through-type valve body structure schematic diagram；
Figure label explanation:
1- plastic casing；2- pressure cap；3- valve body；4- pressure at right angle scale slot；5- locking nut；6- movable axis；7- is manual
Knob；8- lock screw；9- adjusting screw rod；10- spring base；11- ○ shaped circle；12- rubber sheet gasket；13- trisection guide plate；
14- left-handed nut；15- tuning drive gear；16- circlip；17- adjustment spring.
Wherein, the Application Example of differential-pressure bypass valve described in this patent is as follows:
Attached drawing 4 is 1 application principle schematic diagram of the utility model embodiment；
Attached drawing 5 is 2 application principle schematic diagram of the utility model embodiment；
Attached drawing 6 is 3 application principle schematic diagram of the utility model embodiment；
Application principle illustrates figure label explanation, as follows:
18- small-sized wall-mounted gas fired-boiler；19- radiator or floor heating；20- central air conditioner main machine；21- energy-accumulating water tank；22- is opened
Formula water tank；23- water pump；24- end-equipment.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing:
A kind of visual adjusting differential-pressure bypass valve, uses for controlling water system pressure difference, mainly by plastic casing 1,2 and of pressure cap
Valve body 3 is constituted, it is characterised in that:
The plastic casing 1 is whole in a tubular form, and top production is in the bottleneck shape with small sircle hole, and closure periphery injection molding is in hexagonal
Big nut shape, lateral surface are molded with symmetrical pressure at right angle scale slot 4, and end is preset with external screw joint；Wherein, plastic housing
Adjusting screw rod 9 is configured in body 1, housing tip is connected with manual knob 7, and manual knob 7 is connected to adjusting by lock screw 8
9 top of screw rod；
The pressure cap 2 is using metal material production, and in octagonal rectangular recessed blank pipe shape, tubular edge is default interior for upper end forging
Hickey, lower end forging have external screw joint, and tubular center offers the axis hole with pedestal, passes through locking nut 5 in axis hole
The movable axis 6 of the spring base 10 of connecting band recess type；
The valve body 3 is made of three-port structure, after plastic casing 1, pressure cap 2 and valve body 3 be threadedly coupled to constitute one whole
The differential-pressure bypass valve of body.
Visual adjusting differential-pressure bypass valve described in the utility model, is mainly arranged at the confession of small central air conditioning water system
On water return pipeline, for controlling to adjust the regulating device of water system pipeline pressure difference.Existing small central air conditioning water system, should
Guarantee the stability of flow of host, guarantees that end energy can shift as needed at any time again, the mode generallyd use is: in end
Multiple electric two-way valves are installed, to solve this kind of power conservation requirement technical problem on fan coil.
However, the small-sized self-operated type differential-pressure bypass valve provided using this patent, can be used for controlling by a certain equipment most
Small flow, such as small-sized wall-mounted gas fired-boiler, cooling equipment, or the pressure difference of control small central air conditioning water system are used.
Its concrete application case study on implementation, as follows:
Embodiment 1: for visually adjusting differential-pressure bypass valve and apply in small-sized wall-mounted gas-fired Boiler System；
The visual application for adjusting differential-pressure bypass valve in miniature boiler, i.e., in existing small-sized wall-mounted gas-fired Boiler System,
At its radiator for being mounted on end or floor heating inlet and outlet position；When user uses side section load operation or variable-flow operation
When, flow system flow becomes smaller, and pressure difference is caused to increase；When pressure difference exceeds setting value, valve is automatically opened, and partial discharge passes through from this,
To guarantee that miniature boiler flow meets minimum flow requirement.
Embodiment 2: for visually adjusting differential-pressure bypass valve and apply in small central air conditioning unit；
The visual application for adjusting differential-pressure bypass valve in air-conditioner set is mounted on the collection of small central air conditioning host, divides
Hydrophone or on the bypass pipe between return water, when user side operation at part load or variable-flow operation, flow system flow becomes smaller,
Pressure difference is caused to increase；When pressure difference exceeds setting value, valve is automatically opened, and partial discharge is from this process, to guarantee water cooler stream
Amount meets minimum flow requirement.
Embodiment 3: for visually adjusting differential-pressure bypass valve and apply in open tank system;
The visual application for adjusting differential-pressure bypass valve in open tank system, be mounted on water pump inlet and outlet it
Between, it also can be used and flow shut-off device be installed, in the industrial cooling system controlled by solenoid valve or shut-off valve, prevent
Water pump is damaged by bored beat.
Visual adjusting differential-pressure bypass valve described in this patent, in order to solve the technical problem, especially using pressure regulating part point with
The water flow part of valve body contact is a kind of separate type application technology organization plan, and specifically making embodiment is:
The first step, prefabricated plastic shell 1 are molded with pressure at right angle scale slot 4, in scale slot two on the outside of plastic casing 1
Side marks pressure scale；Dress is used in the adjusting screw rod 9 for adjusting pressure at right angle in plastic casing 1 afterwards, and adjusting screw rod 9 is mark
Quasi- design prefabricated component, adjusting screw rod 9 by 16 control of circlip on plastic casing 1, after left-handed spiral shell is screwed on adjusting screw rod 9
Mother 14 is arranged the tuning drive gear 15 being fastened in pressure at right angle scale slot 4 under left-handed nut 14, and tuning drive gear 15 is to trap
If an adjustment spring 17 is constituted；
Second step, the pressure cap 2 are made of metallic copper, are prefabricated with internal thread interface on the inside of upper end, lower end outside is prefabricated
There is external screw joint；2 body central of pressure cap reserves an axis hole, and assembly one is used for the movable axis 6 of seal water system in axis hole,
After movable axis 6 passes through axis hole, the spring base 10 with recess type is tightened to together by locking nut 5；
Third step, the valve body 3 of prefabricated three-port structure, valve body 3 are made of metallic copper, are prefabricated on the inside of 3 upper section of valve body interior
Hickey.According to differential-pressure bypass valve using different occasions are connected, perpendicular type or through-type two kinds of threeway can be cast
Valve body；
Finally, by will be mutually threadedly coupled configured with the plastic casing 1 of attachment with pressure cap 2, after on 1 top of plastic casing
A manual knob 7 is fixedly connected with by lock screw 8 to be integrally formed；It is especially built-in among plastic casing 1 and pressure cap 2 that there is tune
The adjustment spring 17 of pressure is saved, is limited outside the round base that adjustment spring 17 passes through 15 bottom of tuning drive gear, passes through recess type
Limit, is arranged between the spring base 10 on the tuning drive gear 15 on adjusting screw rod 9 and pressure cap 2 in spring base 10；Afterwards by pressure cap 2
It is mutually threadedly coupled with valve body 3, trisection guide plate 13 of 6 end of movable axis with rubber sheet gasket 12 in pressure cap 2 is just and valve
The cavity of body 3 moves in certain aperture, constitutes a complete differential-pressure bypass valve.
Central air-conditioning system described in this patent is using the advantages of differential-pressure bypass valve:
Residential central air- unit fully considers the service condition of user, considers room concurrent signatures, selection is the most
Suitable host can be such that host is reasonably matched with load in this way, guarantee the operational energy efficiency and operation stability of host；
Host capacity and buffer tank are decreased simultaneously, increases system water capacity, extend the interval of host start/stop time, so that entirely
Air-conditioning system operation is more energy saving.
It is controlled on water main road using differential-pressure bypass valve, electric two-way valve is installed in tail-end blower fan coil pipe, if some is electric
Dynamic two-port valve close can by end that load transfer opens to another, i.e., energy can mutual phase transfer, be able to achieve blower
Coil pipe closes more, and the effect that open will be more preferable.This small central air conditioning water system (VWV variable flow pumping system) is similar to refrigerant
VRV the runoff of intermediary when chilling system.
The differential-pressure bypass valve that graduation indication is adjusted using pressure at right angle, can allow user very easily according to the reality of engineering
Situation setting bypass pressure difference, thoroughly solves the valuableness of small central air conditioner system pressure difference by-pass governing product, bypasses for pressure difference
Control is provided convenience in the universal of small central air conditioner system, and innovative product design is also in-site installation and the debugging side of providing
Just.
Applicable cases using the pressure difference bypass energy-saving solution are:
This solution has been subjected to actual test use, from air-conditioning dealer worry is started according to the host of this arrangements
Refrigerating capacity is too small, may have become now popular with users after linking up with user by the complaint of client, thereby increases and it is possible at
Technical solution and VWV for the big attraction of air-conditioning retailer one one of solution low in cost and reliably applicable.
The above-mentioned example preferably described enables those skilled in the art to make or use the utility model.These examples
Various modifications will be apparent to the person skilled in the art, and the technical pattern principle that the utility model discloses can be with
It is applied to the spirit or scope in other examples without departing from the utility model.Therefore, the utility model is not limited to here
The example shown, and the principle and the consistent broadest range of novel feature that meet and disclose here.
Claims (6)
1. a kind of visual adjusting differential-pressure bypass valve, uses for controlling water system pressure difference, mainly by plastic casing, pressure cap and valve body
It constitutes, it is characterised in that:
The plastic casing is whole in a tubular form, and top production is in the bottleneck shape with small sircle hole, and closure periphery injection molding is in the big spiral shell of hexagonal
Cap shaped, lateral surface are molded with symmetrical pressure at right angle scale slot, and end is preset with external screw joint；Wherein, the plastic housing
Adjusting screw rod is installed in vivo, top is connected with manual knob by lock screw；
The pressure cap is made of metal material, and upper end forging presets internal screw thread in octagonal rectangular recessed blank pipe shape, tubular edge
Interface, lower end forging have external screw joint, and tubular center offers axis hole, and axis hole is interior to be connected with recess type bullet by locking nut
The movable axis of spring abutment；
The valve body is made of three-port structure, after plastic casing, pressure cap and valve body screw thread connected and composed into a whole pressure difference
By-passing valve.
2. visual adjusting differential-pressure bypass valve according to claim 1, it is characterised in that: the adjusting screw rod is a upper end
The pillar segment that is square is processed, square column section top is prefabricated with screw hole, bayonet slot is prefabricated with below square column section, and lower end is whole
Section is machined with the metallic copper bar of sinistral external thread；It is screwed into left-handed nut on sinistral external thread on the adjusting screw rod, puts on quarter
Pointer, the rear small sircle hole for passing through plastic casing top are spent, and passes through circlip control in bayonet slot at the top of plastic casing.
3. visual adjusting differential-pressure bypass valve according to claim 1 or 2, it is characterised in that: the plastic casing and pressure cap
The intermediate especially built-in adjustment spring with adjusting pressure, adjustment spring are arranged on the tuning drive gear and pressure cap on adjusting screw rod
Spring base between.
4. visual adjusting differential-pressure bypass valve according to claim 1, it is characterised in that: be also configured with zero on the movable axis
Type circle and rubber sheet gasket are constituted, wherein are contacted and be prefabricated with two pass groove on the movable axis of axis hole, sealing is arranged on groove and is used
○ shaped circle, rubber sheet gasket be set in movable axis forging trisection guide plate end.
5. visual adjusting differential-pressure bypass valve according to claim 2, it is characterised in that: the tuning drive gear is to be molded with two
The cylindrical plastic piece of the center band circular hole of wing pointer, upper part hollow out have the hexagonal indent of identical left-handed nut shape rectangular,
Bottom is molded with the round base of protrusion, and both wings pointer is fastened in the pressure at right angle scale slot on the outside of plastic casing.
6. visual adjusting differential-pressure bypass valve according to claim 1 or 2, it is characterised in that: connect in plastic casing and pressure cap
After connecing, when turning the manual knob on plastic casing top, left-handed nut drives tuning drive gear or more under adjustment spring active force
Mobile, i.e., tuning drive gear can move up or down under the active force of intermediate regulations spring；
When valve body inlet and outlet pressure difference is greater than preset pressure difference, movable axis overcomes the pressure of adjustment spring to move up, from
And valve body aperture is made to become larger, the water flow of bypass becomes larger；
When valve body inlet and outlet pressure difference is less than preset pressure difference, movable axis overcomes the pressure of adjustment spring to move down, from
And valve body aperture is made to become smaller, the water flow of bypass becomes smaller, to reach the control and regulation to valve body inlet and outlet pressure difference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821676956.3U CN208951374U (en) | 2018-10-16 | 2018-10-16 | It is visual to adjust differential-pressure bypass valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821676956.3U CN208951374U (en) | 2018-10-16 | 2018-10-16 | It is visual to adjust differential-pressure bypass valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208951374U true CN208951374U (en) | 2019-06-07 |
Family
ID=66741708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821676956.3U Active CN208951374U (en) | 2018-10-16 | 2018-10-16 | It is visual to adjust differential-pressure bypass valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208951374U (en) |
-
2018
- 2018-10-16 CN CN201821676956.3U patent/CN208951374U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 200444 east side of 2 building, 929 Silver Road, Baoshan District, Shanghai. Patentee after: Shanghai Anchao Online Control Technology Co., Ltd. Address before: 200444 east side of 2 building, 929 Silver Road, Baoshan District, Shanghai. Patentee before: Shanghai nest online control technology Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder |