CN202176765U - Automatic differential-pressure dynamic liquid level control valve - Google Patents
Automatic differential-pressure dynamic liquid level control valve Download PDFInfo
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- CN202176765U CN202176765U CN2011203110700U CN201120311070U CN202176765U CN 202176765 U CN202176765 U CN 202176765U CN 2011203110700 U CN2011203110700 U CN 2011203110700U CN 201120311070 U CN201120311070 U CN 201120311070U CN 202176765 U CN202176765 U CN 202176765U
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- outlet
- liquid level
- control valve
- automatic control
- pressure difference
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Abstract
The utility model discloses an automatic differential-pressure dynamic liquid level control valve, comprising a valve body, wherein the inner cavity of the valve body is divided into a left cavity and a right cavity by an elastic diaphragm, a first outlet and a second outlet are arranged on the valve body, a liquid outlet pipe is fixedly arranged on the first outlet, a float bowl chamber is fixedly arranged at the position of the second outlet, a float bowl is arranged in the float bowl chamber and an elastic sealing plug opposite to the second outlet is arranged on the top surface of the float bowl, the left cavity is communicated with the second outlet, the right cavity is provided with an liquid inlet hole and is communicated with the first inlet, an liquid inlet control block is embedded at the center of the elastic diaphragm, and an axial through hole is arranged on the liquid inlet control block. The elastic diaphragm is driven to move left and right by the pressure difference at two sides of the elastic diaphragm to open and close a water inlet pipe, thereby realizing automatic control of the liquid level.
Description
Technical field
The utility model relates to liquid level automatic control valve, is specifically related to pressure difference-powered liquid level automatic control valve.
Background technique
In producing and living; Often need relate to the liquid level of liquid is controlled automatically; Such as, in cold and hot liquid automatic control of liquid in the daily life and the commercial production to the automatic control of liquid of extra large liquid, beverage, diesel oil, gasoline and crude oil, edible oil, liquid detergent, industrial sulphuric acid, hydrochloric acid, nitric acid, industrial saline solution, alkali lye or other industrial solvent or the like.
What traditional automatic control of liquid adopted is float valve, and what the float valve control mechanism adopted is lever construction, well-known, adopts float valve rapid wear, the life-span weak point of leverage, and its main cause is:
(1) no matter be lever direct press type or lever differential pressure type, lever all is contrary hydraulic pressure close port, and the lever parts can damage because of liquid hammer gradually like this;
(2) lever that is hanging, ball float receive easily transporting and jolt and artificially damage, and lever has distortion slightly, will produce bigger liquid level deviation;
(3) ball float is swung in the liquid case for a long time and is caused the valve block wearing and tearing and leakage;
(4) switch is frequent, liquid case liquid level fall a little some lever and floating valves will switch once, loss mechanical life.
Therefore, in actual life, the float valve of a large amount of liquid casees is operated in the fault state, produces the serious liquid wasting of resources, has potential safety hazard.
The model utility content
The utility model technical problem to be solved is to solve float valve rapid wear, life-span weak point, thereby causes the problem of the liquid wasting of resources.
In order to solve the problems of the technologies described above; The technological scheme that the utility model adopted provides a kind of pressure difference-powered liquid level automatic control valve, comprises valve body, and the inner chamber of said valve body is separated into left and right chamber by elastic diaphragm; Said valve body is provided with first, second outlet; Be fixed with drain pipe in said first outlet, said second outlet port is fixed with the float chamber, and floating drum places in the said float chamber and the end face of floating drum is provided with the elastic packing plug that is oppositely arranged with said second outlet; Said left chamber is communicated with said second outlet; Said right chamber is provided with liquid inlet pipe and communicates with said first outlet, and the center of said elastic diaphragm is embedded with feed liquor controll block, and said feed liquor controll block is provided with axial hole.
In such scheme, said valve body is fixedly formed by left valve barrel and right valve barrel spiral shell dress.
In such scheme; Be fixed with the annular cover on the inwall of said left valve barrel; The right side of said annular cover is provided with annular groove; Said elastic diaphragm is opening horn-like and opening end left and is inserted in the said annular groove, and the gland right-to-left bears against said elastic diaphragm on the right side of said annular cover, and is provided with seal ring between the right side of the left side of said gland and said annular cover.
In such scheme, said liquid inlet pipe is arranged on the central part of said right valve barrel, also is provided with the circular orientation post that is provided with around said liquid inlet pipe on the left side of said right valve barrel, and the left side of said circular orientation post and the right side of said gland offset.
In such scheme, said elastic diaphragm is provided with axial hole, and the outer peripheral surface of said feed liquor controll block is provided with annular groove, and the axial hole inwall of said elastic diaphragm is installed in the annular groove on the said feed liquor controll block.
In such scheme, on the said left valve barrel second outlet locate to be provided with cylindrical boss, the lower end surface of said cylindrical boss is provided with annular direction recess, the end face of said floating drum is provided with and the suitable annular directional post of said annular direction recess.
In such scheme, be embedded with up big and down small conical pipe in said second outlet.
In such scheme; The bottom of float chamber's outer wall is provided with opening, and the outer wall of said floating drum is provided with the pit that is oppositely arranged with said opening, and the height of said pit equals the stroke that floating drum moves up and down; Be embedded with limiting stopper in the said opening, the extending in the said pit of said limiting stopper.
In such scheme; Axial hole on the said feed liquor controll block is a step hole left large and right small; Horizontally disposed cleaning rod left end is fixed on the inwall of left chamber, and right-hand member is the step axle suitable with said step hole, and said step axle is inserted in the said step hole.
In such scheme, the diameter of said conical pipe lower end outlet is greater than the diameter of said axial hole inlet.
The utility model; The inner chamber of valve body is separated into left and right chamber by elastic diaphragm; Pressured fluid acts on the right side of elastic diaphragm by liquid inlet pipe, and simultaneously, pressured fluid also gets into left chamber through the axial hole on the elastic diaphragm; When pressured fluid was full of left chamber, the pressure that plays the barrier film left side also reached the pressure on right side.Because elastic diaphragm left side area is greater than the right side area, so form a bigger pressure reduction in the left and right sides of elastic diaphragm, elastic diaphragm moves from left to right and withstands liquid inlet pipe, thereby realizes automatic control of liquid.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the structural representation of left valve barrel in the utility model;
Fig. 3 is the structural representation of annular cover in the utility model;
Fig. 4 is the structural representation of elastic diaphragm in the utility model;
Fig. 5 is the structural representation of right valve barrel in the utility model;
Fig. 6 is the structural representation of feed liquor controll block in the utility model;
Fig. 7 is the structural representation of floating drum in the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is made detailed explanation.
Pressure difference-powered liquid level automatic control valve as shown in Figure 1, that the utility model provides, valve body is fixedly formed by left valve barrel 1 and right valve barrel 2 spiral shells dress, and the inner chamber of valve body is separated into left and right cavity C, B by elastic diaphragm 4.
Be fixed with annular cover 7 on the inwall of left valve barrel 1; The structure of annular cover 7 is as shown in Figure 3; The right side of annular cover 7 is provided with annular groove 71, and the structure of elastic diaphragm 4 is as shown in Figure 4, and elastic diaphragm 4 is opening horn-like and opening end 41 left and is inserted in the annular groove 71; Right-hand member is as barrier film 45, and the right side of barrier film 45 forms primary sealing area 43.
The structure of right valve barrel 2 is as shown in Figure 5; The center of right valve barrel 2 is provided with a liquid inlet pipe 25 that axially is provided with; The left side of liquid inlet pipe 25 forms secondary sealing area 30, and the area of the left side 44 of barrier film 45 is long-pending greater than the intracavity section of liquid inlet pipe 25, also is provided with the circular orientation post 29 that is provided with around liquid inlet pipe 25 on the left side of right valve barrel 2; Gland 3 spiral-locks are on the right flank of elastic diaphragm 4; The right side of the left side of circular orientation post 29 and gland 3 offsets, and elastic diaphragm 4 is born against on the right side of annular cover 7, and be provided with seal ring 5 between the right side of the left side of gland 3 and annular cover 7.
Again referring to Fig. 1, Fig. 2; Left valve barrel 1 is provided with the lower end that is fixed with liquid-discharging tube 13, the second outlets 22 in first, second outlet 19,22, the first outlets 19 and is embedded with up big and down small conical pipe 23; Second the outlet 22 by be fixed on left valve barrel 1 outer wall float chamber 11 around; On left valve barrel 1 outer wall second outlet 22 places are provided with cylindrical protrusions 25, and the lower end surface of cylindrical protrusions 25 is provided with annular direction recess 21, and floating drum 10 places in the float chamber 11; The end face of floating drum 10 is provided with the annular directional post 18 (as shown in Figure 7) suitable with annular direction recess 21; The end face of floating drum 10 is provided with the elastic packing plug 12 (being processed by rubber material) that is oppositely arranged with conical pipe 23 opening ends of second outlet on 22, and the C of left chamber is communicated with second outlet 22, and right chamber B and first exports 19 and communicates.
Elastic diaphragm 4 is provided with axial hole 42, and is as shown in Figure 6, and the outer peripheral surface of feed liquor controll block 6 is provided with annular groove 61, and the axial hole inwall of elastic diaphragm 4 is installed in the annular groove 61 on the feed liquor controll block 6.Feed liquor controll block 6 is provided with axial step hole 62 left large and right small; The right-hand member aperture in axial step hole 62 is less than the lower ending opening of conical pipe 23; Horizontally disposed cleaning rod 8 left ends are fixed on the inwall of the C of left chamber; Right-hand member is the step axle suitable with step hole, and the step axle is inserted in the axial step hole 62 on the feed liquor controll block 6.The effect of cleaning rod 8 is to prevent that incrustation scale or foreign material from blocking step hole; Feed liquor controll block 6 is followed barrier film 45 left and right moving on cleaning rod 8; So the axial step hole 62 on 8 pairs of feed liquor controll blocks 6 of cleaning rod is cleared up, the step surface on the cleaning rod 8 can also play spacing effect.
In order to guarantee that floating drum 10 is unlikely to break away from float chamber 11 downwards; The lower left side of float chamber 11 is provided with an opening; The outer wall of floating drum 10 is provided with the pit 21 (as shown in Figure 7) that is oppositely arranged with opening; The height of pit 21 equals liquid level control stroke (being the stroke that floating drum moves up and down); The opening of limiting stopper 14 in float chamber 11 inserts and extend in the pit 21, stops the further sinking of floating drum 10, can guarantee that also the annular directional post 18 at floating drum 10 tops can not deviate from from annular direction recess 21 downwards.
When the utility model used, float chamber 11 all placed the container 100 that need carry out liquid level control with liquid-discharging tube 13, and working principle is following:
(1) when liquid level in the container 100 is low when needing feed liquor, floating drum 10 sinks under the effect of own wt, so elastic packing plug 12 moves down with floating drum 10; Leave the lower ending opening of conical pipe 23; At this moment, the pressured fluid A in the liquid inlet pipe 25 acts on the right side of barrier film 46, and pressured fluid A gets in the C of left chamber through the axial step hole on the feed liquor controll block 6 62 simultaneously; And the conical pipe 23 in second outlet 22 flow in the container 100 on left valve barrel 1; Because the aperture of 62 ingress, aperture efficiency axial step hole of conical pipe 23 is much bigger, so the C of left chamber is in passive state, therefore; Left and right two ends at barrier film 46 form a bigger pressure reduction; Barrier film 464 is moved from right to left, and the gap of pressured fluid A between primary sealing area 48 and secondary sealing area 30 gets into right chamber B, got in the container 100 by first outlet 19 and liquid-discharging tube 13 again.Container 100 in the utility model can be flush toilet, stainless steel water tank, electric water heater, solar water heater, pond, water tower, oil tank, beverage vessel, industrial liquid groove or the like.
(2) when the liquid level in the container 100 reaches the bottom of the floating drum 10 that can touch in the float chamber 11, floating drum 10 can progressively move up under buoyancy function, along with the rising of liquid level; Floating drum 10 upwards thrust increases gradually, makes elastic packing plug 12 have enough upwards thrust to block the lower ending opening of conical pipe 23, so the pressure in the C of left chamber raises very soon; And reach the pressure of pressured fluid A in the liquid inlet pipe 25; Because the area of the left side 44 of barrier film 45 is long-pending greater than the intracavity section of liquid inlet pipe 25, therefore, form a pressure difference in the left and right sides of barrier film 45; Barrier film 45 is moved from left to right; The primary sealing area 48 of barrier film 45 and the secondary sealing area 30 on the liquid inlet pipe are close together tightly, and have enough strength to guarantee sealing, pressured fluid A stops to flow into admission chamber B; Valve is in buttoned-up status, and container 100 stops feed liquor.
Force analysis during the described pressure difference-powered liquid level automatic control valve opening and closing of the utility model is following:
(promptly 1/2 ") is example (pressured fluid is a water) with minimum gauge DN15.
(1) maximum weighted of elastic packing plug 12 is calculated.
The diameter d 1=0.8mm at conical pipe 23 lower ending opening places; Maximum inlet hydraulic is that (liquid entering hole pressure can be so not high usually for 0.6Mpa; Be generally 0.2～0.3Mpa) by standard; Pressure maximum in the C of left chamber also is 0.6Mpa, and the maximum outlet pressure at conical pipe 23 lower ending opening places is the sectional area S1 * 0.6Mpa=1/4 * ∏ * d12 * 0.6MPa=1/4 * ∏ * 0.082 * 0.6MPa=30.144g at the maximum weighted F1 (max) of elastic packing plug 12=conical pipe 23 lower ending opening places.
(2) setting of the maximum volume of floating drum 10 and maximum weight
D outer diameter=the 41mm of floating drum 10, wall thickness are 0.5mm, d=11mm, and H=100mm, material is an ABS plastic, its proportion is 1.05g/cm
3,
Then, maximum volume Vmax=1/4 * ∏ * D2 * H=1/4 * 412 * 100=42 cm
3,
Proportion=the 42g of maximum buoyancy Fmax=Vmax * water,
And, maximum weight Gmax=(Vmax-1/4 * ∏ * (D-2 * 0.5) 2 * H * 1.05=2.1g.
(3) the sealing situation analysis of conical pipe 23 lower ending openings
Learn according to above-mentioned situation analysis; The maximum that floating drum 10 produces because of the buoyancy maximum buoyancy Fmax-of the thrust Tmax=float maximum weight Gmax=42g-2.1g=39.9g that makes progress; And the maximum outlet pressure of pressing conical pipe 23 lower ending openings to be the maximum that maximum weighted F1 (max)=30.144g＜floating drum produces because of buoyancy of elastic packing plug 12 make progress thrust Tmax=39.9g; So elastic packing plug 12 has enough strength to seal up conical pipe 23 lower ending openings fully; Pressure in the C of left chamber is risen rapidly, force barrier film 45 to move and seal fully the secondary sealing area 30 of liquid inlet pipe from left to right, let valve be in buttoned-up status.
The advantage of the described pressure difference-powered liquid level automatic control valve of the utility model is following:
(1) simple in structure, novel in design, clear principle.Have only a movable part in the utility model---trumpet-shaped elastic diaphragm 4, need not maintenance, need not to change, there is not dynamic seal; Do not have easily damaged parts, have very high technical order, mechanical life is more than 200,000 times; Natural life-span is up to more than 10 years, reliability and durability, and this pressure difference-powered liquid level automatic control valve is widely used; Reduce the phenomenon that traditional lever and floating valve failover work is wasted water, positive water-saving effect is arranged.
(2) the utility model is different from traditional float valve; In fact it is no lever and floating valve; It has overcome all shortcomings of traditional float valve, and especially it has avoided traditional float valve to adopt the shortcoming of internal activity rubber seal and the shortcoming that ruptures easily in the balance pivot place.
(3) the utility model can be confirmed different liquid levels through the floating drum 10 of changing different volumes according to the demand of different liquid levels, lets liquid level satisfy the demand of various containers.
(4) the utility model volume is little, in light weight, and cost of transportation is low.
(5) in order to prolong the working life of the utility model; The macromolecule MPE that the utility model can adopt is nontoxic, edible health grade, mechanical property are fabulous is as the material of valve; Have low temperature resistant, corrosion-resistant, anti-cracking resistance, ageing-resistant characteristics, working life was up to 50 years.
(6) the utility model adopts molding and forming, need not turner, and output is high, cost is low.
(7) the utility model is easy to install, and general family member all can install, and need not the qualified installation person.
The utility model is not limited to above-mentioned preferred forms, and anyone should learn the structural change of under the enlightenment of the utility model, making, every with the utlity model has identical or close technological scheme, all fall within the protection domain of the utility model.
Claims (10)
1. pressure difference-powered liquid level automatic control valve comprises valve body, it is characterized in that; The inner chamber of said valve body is separated into left and right chamber by elastic diaphragm, and said valve body is provided with first, second outlet, is fixed with drain pipe in said first outlet; Said second outlet port is fixed with the float chamber; Floating drum places in the said float chamber and the end face of floating drum is provided with the elastic packing plug that is oppositely arranged with said second outlet, and said left chamber is communicated with said second outlet, and said right chamber is provided with liquid inlet pipe and communicates with said first outlet; The center of said elastic diaphragm is embedded with feed liquor controll block, and said feed liquor controll block is provided with axial hole.
2. pressure difference-powered liquid level automatic control valve as claimed in claim 1 is characterized in that, said valve body is fixedly formed by left valve barrel and right valve barrel spiral shell dress.
3. pressure difference-powered liquid level automatic control valve as claimed in claim 2; It is characterized in that; Be fixed with the annular cover on the inwall of said left valve barrel, the right side of said annular cover is provided with annular groove, and said elastic diaphragm is opening horn-like and opening end left and is inserted in the said annular groove; The gland right-to-left bears against said elastic diaphragm on the right side of said annular cover, and is provided with seal ring between the right side of the left side of said gland and said annular cover.
4. pressure difference-powered liquid level automatic control valve as claimed in claim 3; It is characterized in that; Said liquid inlet pipe is arranged on the central part of said right valve barrel; Also be provided with the circular orientation post that is provided with around said liquid inlet pipe on the left side of said right valve barrel, the left side of said circular orientation post and the right side of said gland offset.
5. pressure difference-powered liquid level automatic control valve as claimed in claim 1; It is characterized in that; Said elastic diaphragm is provided with axial hole; The outer peripheral surface of said feed liquor controll block is provided with annular groove, and the axial hole inwall of said elastic diaphragm is installed in the annular groove on the said feed liquor controll block.
6. pressure difference-powered liquid level automatic control valve as claimed in claim 1; It is characterized in that; Second outlet locates to be provided with cylindrical boss on the said left valve barrel; The lower end surface of said cylindrical boss is provided with annular direction recess, and the end face of said floating drum is provided with and the suitable annular directional post of said annular direction recess.
7. pressure difference-powered liquid level automatic control valve as claimed in claim 1 is characterized in that, is embedded with up big and down small conical pipe in said second outlet.
8. pressure difference-powered liquid level automatic control valve as claimed in claim 1; It is characterized in that; The bottom of float chamber's outer wall is provided with opening, and the outer wall of said floating drum is provided with the pit that is oppositely arranged with said opening, and the height of said pit equals the stroke that floating drum moves up and down; Be embedded with limiting stopper in the said opening, the extending in the said pit of said limiting stopper.
9. pressure difference-powered liquid level automatic control valve as claimed in claim 1; It is characterized in that; Axial hole on the said feed liquor controll block is a step hole left large and right small; Horizontally disposed cleaning rod left end is fixed on the inwall of left chamber, and right-hand member is the step axle suitable with said step hole, and said step axle is inserted in the said step hole.
10. pressure difference-powered liquid level automatic control valve as claimed in claim 1 is characterized in that, the diameter of said conical pipe lower end outlet is greater than the diameter of said axial hole inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203110700U CN202176765U (en) | 2011-08-25 | 2011-08-25 | Automatic differential-pressure dynamic liquid level control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203110700U CN202176765U (en) | 2011-08-25 | 2011-08-25 | Automatic differential-pressure dynamic liquid level control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202176765U true CN202176765U (en) | 2012-03-28 |
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ID=45866643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203110700U Expired - Fee Related CN202176765U (en) | 2011-08-25 | 2011-08-25 | Automatic differential-pressure dynamic liquid level control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202176765U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359635A (en) * | 2011-08-25 | 2012-02-22 | 陈银周 | Differential pressure dynamical type liquid level automatic control valve |
-
2011
- 2011-08-25 CN CN2011203110700U patent/CN202176765U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359635A (en) * | 2011-08-25 | 2012-02-22 | 陈银周 | Differential pressure dynamical type liquid level automatic control valve |
| CN102359635B (en) * | 2011-08-25 | 2013-03-20 | 陈银周 | Differential pressure dynamical type liquid level automatic control valve |
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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: 20120328 Termination date: 20130825 |