CN203670895U - Non-back-pressure type liquid level control valve - Google Patents
Non-back-pressure type liquid level control valve Download PDFInfo
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- CN203670895U CN203670895U CN201420027513.7U CN201420027513U CN203670895U CN 203670895 U CN203670895 U CN 203670895U CN 201420027513 U CN201420027513 U CN 201420027513U CN 203670895 U CN203670895 U CN 203670895U
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- main valve
- level control
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Abstract
A non-back-pressure type liquid level control valve comprises a main valve, a float bowl pilot valve, a first guide tube and a second guide tube. The main valve comprises a main valve inlet end, a main valve outlet end, a main valve upper cavity and a movement assembly. The pilot valve pilot valve comprises a valve seat, a valve clack, a float bowl, a float bowl rod and a connecting rod. The valve seat is provided with a first through hole, a second through hole and a third through hole. The valve clack is provided with a fourth through hole, a firth through hole, a sixth through hole and a seventh through hole. The first through hole is communicated with the main valve upper cavity through a first guide tube. The second through hole is communicated with the main valve inlet end through a second guide tube. The third through hole is directly communicated with the outside. The float bowl rod is provided with a water level upper dead point and a water level lower dead point. The float bowl pilot valve achieves the two-position and three-way switch function, so that the liquid level in a liquid collection device is controlled on the premise without back pressure, equipment complexity is simplified, and the purposes of facilitating equipment installation and maintenance, lowering equipment cost an the like are achieved finally.
Description
Technical field
The utility model relates to liquid level control field, relates in particular to a kind of without back pressure type fluid level control valve.
Background technique
In all kinds of fluid systems used in everyday, especially, in the liquid collector such as water tower, oil depot, people usually need liquid level to carry out certain control; Such as, in the time that liquid level rises to certain height, system need to realize and automatically stop supplying liquid in the liquid collector such as water tower, oil depot; And in the time that liquid level drops to certain height, system needs to realize opens liquid-supplying system automatically, and to liquid make-up in the liquid collector such as water tower, oil depot.
In fluid level control device used in everyday, comparatively popular fluid level control valve as shown in Figure 1, this kind of control valve drives main valve 11 by float ball guided valve 12, thereby control opening or closure of main valve 11, this kind of control valve has can partial installation, thereby save installing space, there is the advantages such as the adjustable extent of the highest liquid level and minimum liquid level is large simultaneously; But after liquid level declines, be that float ball guided valve 12 is opened, main valve 11 is opened and in the liquid storage systems such as water tower when fluid infusion, because the partial pressure of main valve 11 epicoeles cannot all release, there is certain back pressure, cause main valve 11 to open completely, caused the fluid generating portion pressure loss, and then cause invisible energy consumption.
In order to solve above-mentioned back pressure problems, people have increased two-position three way switch on the basis of said apparatus, the structure of this two-position three way switch as shown in Figure 2, comprise flap 21 and lower Disc 22, its principle is to utilize difference between upward pressure and the downforce of upper flap 21 to promote two flaps to move, thereby realizes the effect of two-position three way.
Increase fluid level control device structure after two-position three way switch as shown in Figure 3, main valve entrance point 31 has been connected with two-position three way switch 33 respectively with main valve epicoele 32;
When pilot valve 34 is during in closed condition, the top force value of two-position three way switch 33 interior upper flaps is identical with below force value, and now main valve epicoele 32 is connected with main valve entrance point 31;
When pilot valve 34 is during in open mode, the top force value of two-position three way switch 33 interior upper flaps is less than below force value, upper flap is promoted to move upward by pressure difference, is connected, and then reaches the interior object without back pressure of main valve epicoele 32 thereby realize main valve epicoele 32 with ambient atmosphere.
Although having increased the fluid level control device of two-position three way switch, this kind can solve the problem that in above-mentioned main valve epicoele, partial pressure cannot all release, but owing to having increased two-position three way switch, and caused Whole Equipment more complicated, it is more complicated that the work of installation and maintenance simultaneously also becomes, increase cost of production simultaneously, be unfavorable for real-life practicality.
Summary of the invention
In order to address the above problem, it is a kind of without back pressure type fluid level control valve that the utility model provides, and comprises main valve, floating drum pilot valve, the first conduit and the second conduit; Described main valve comprises main valve entrance point, main valve outlet end, main valve epicoele and motion assembly, and described floating drum pilot valve comprises valve seat, flap, floating drum, float lever and connecting rod; It is characterized in that, on described valve seat, be provided with the first through hole, the second through hole and third through-hole, all non-connections between any two through holes in described the first through hole, the second through hole and third through-hole; On described flap, be provided with fourth hole, fifth hole, the 6th through hole and the 7th through hole, non-connection between described fourth hole and fifth hole, described fourth hole is connected with the 7th through hole, and described fifth hole is connected with the 6th through hole; Described flap is arranged between valve seat and connecting rod, and described flap is rotary structure, and described flap is connected with float lever by connecting rod;
Described the first through hole is connected with main valve epicoele by the first conduit, and described the second through hole is connected with main valve entrance point by the second conduit, and described third through-hole is directly connected with ambient atmosphere;
On described float lever, be provided with water level top dead center and water level lower dead center, described float lever is the center region through floating drum in Vertical direction, is slideable connection between described float lever and floating drum.
In said apparatus, described the first through hole is consistent with the pore size of fourth hole, fifth hole, and described the second through hole is consistent with the pore size of the 6th through hole, and described third through-hole is consistent with the size of the 7th through hole.
In said apparatus, described third through-hole also can be connected with main valve outlet end by conduit.
In said apparatus, described water level top dead center and water level lower dead center are free-standing structure.
In said apparatus, described floating drum pilot valve also comprises counterweight block.
In said apparatus, described motion assembly comprises moving person, isolating film and spring structure.
In said apparatus, described moving person lower end is provided with yielding rubber;
In said apparatus, the material of described isolating film is rubber.
In said apparatus, described spring structure is arranged at the top of moving person.
In said apparatus, the edge of described isolating film is provided with some holes.
Advantage of the present utility model and beneficial effect are: the utility model provides a kind of without back pressure type fluid level control valve, by realized two-position three way switching function on floating drum pilot valve, thereby in having realized under the prerequisite without back pressure liquid collector, liquid level is controlled, simplify equipment complexity, finally reach and facilitated equipment I&M, reduced the objects such as equipment cost.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of fluid level control device in prior art;
Fig. 2 is the structural representation of two-position three way switch;
Fig. 3 is the structural representation without back pressure type fluid level control device in prior art;
Fig. 4 is the structural representation without back pressure type fluid level control device in the utility model;
Fig. 5 is the structural representation of the interior motion assembly of main valve in the utility model;
Fig. 6 is the structural representation of floating drum pilot valve in the utility model;
Fig. 7 is the B-B schematic cross-section of floating drum pilot valve part in the utility model;
Fig. 8 is the side-looking structural representation of valve seat in Fig. 7;
Fig. 9 is the side-looking structural representation of flap in Fig. 7;
Figure 10 is the side-looking structural representation of main valve valve seat and flap while closing;
The side-looking structural representation of valve seat and flap when Figure 11 is main valve open.
embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is further described.Following examples are only for the technical solution of the utility model is more clearly described, and can not limit protection domain of the present utility model with this.
Fig. 4 is the structural representation without back pressure type fluid level control device in the utility model; As shown in Figure 4, the utility model has been recorded a kind of without back pressure type fluid level control valve, comprises main valve 41, floating drum pilot valve 42, the first conduit 43 and the second conduit 44;
Wherein, above-mentioned main valve 41 comprises main valve entrance point 411, main valve outlet end 412, main valve epicoele 413 and motion assembly 414; Main valve entrance point 411 is connected with outer liquid body source (not marking in the drawings), and as the liquid inlet of main valve 41; Main valve outlet end 412 is connected with liquid collector 45 by pipeline (not marking in the drawings), and by above-mentioned pipeline to the interior conveying liquid of liquid collector 45;
Motion assembly 414 is arranged at the inside of main valve 41, its concrete structure as shown in Figure 5, comprise moving person 51, isolating film 52 and spring structure (not marking in the drawings), wherein, isolating film 52 is quality of rubber materials, and the edge of isolating film 52 is provided with some pore space structures, and the effect of isolating film 52 is that main valve epicoele 413 and below are kept apart, move upward with the poor motion assembly 414 that promotes of this mineralization pressure, thereby realize the opening action of main valve 41; Spring structure is arranged at the top of motion assembly 414, in the time that the top of isolating film 52 force value is identical with below force value, promoting motion assembly 414 by the elastic force effect of spring structure 53 moves downward, thereby control 41 closing motion, simultaneously, below moving person 51, be also provided with yielding rubber 53, this yielding rubber 53 can play certain cushioning effect in the time closing main valve 41, to increase the working life of main valve 41.
Further, the structure of floating drum pilot valve 42 as shown in Figure 6, comprises valve seat 61, flap 62, floating drum 421, float lever 422 and connecting rod 423; Wherein, floating drum 421 is barrel-shaped structure, to reduce the possibility that is subject to the interior foreign material Gua of liquid collector 45 Pan; On float lever 422, be provided with water level top dead center 4221 and water level lower dead center 4222, these two stops are all adjustable structure, so that user can adjust setting to highest water level and lowest water level according to actual needs; Float lever 422 is the center region through floating drum 421 in Vertical direction, and floating drum 421 is arranged between water level top dead center 4221 and water level lower dead center 4222, and floating drum 421 can be slided between water level top dead center 4221 and water level lower dead center 4222; Described flap 62 is connected with float lever 422 by connecting rod 423, thereby can realize rotatablely moving of flap 62 by the longitudinal movement of connecting rod 423; Meanwhile, above-mentioned floating drum pilot valve 42 is also provided with counterweight block 63, and this counterweight block 63 can be realized the control to float lever 422 by lever principle.
Further, as shown in Figure 7, flap 62 is between valve seat 61 and connecting rod 423, and flap 62 rotates in several angle for the annexation between valve seat 61, flap 62 and connecting rod 423;
Wherein, the side-looking structure of above-mentioned valve seat 61 as shown in Figure 8, is provided with the first through hole 611, the second through hole 612 and third through-hole 613 on it; Wherein, the first through hole 611 is connected with main valve epicoele 413 by the first conduit 43, described the second through hole 612 is connected with main valve entrance point 411 by the second conduit 44, described third through-hole 613 is directly connected with ambient atmosphere, between any two through holes in above-mentioned the first through hole 611, the second through hole 612 and third through-hole 613, be non-conduction structure, and distance between the second through hole 612 and the first through hole 611 equates with the distance between third through-hole 613 and the first through hole 611.
Preferably, above-mentioned third through-hole 613 also can be connected with main valve outlet end 412 by conduit, to reach water-saving effect.
Above-mentioned flap 62 is arranged between valve seat 61 and connecting rod 423 and can carries out the rotation of several angle, its side-looking structure as shown in Figure 9, on flap 62, be provided with fourth hole 6111, fifth hole 6112, the 6th through hole 6121 and the 7th through hole 6131, between above-mentioned fourth hole 6111 and fifth hole 6112, it is non-conduction structure, between in described fourth hole 6111 and the 7th through hole 6131, being conducting structure, is conducting structure between described fifth hole 6112 and the 6th through hole 6121.
Preferably, the first above-mentioned through hole 611 is consistent with the pore size of fourth hole 6111, fifth hole 6112, the second through hole 612 is consistent with the pore size of the 6th through hole 6121, third through-hole 613 is consistent with the size of the 7th through hole 6131, avoid when the fluid transfer with this, the unnecessary liquid causing because bore hole size is different flows out.
In real work, when liquid in liquid collector 45 is sufficient and make floating drum 421 reach people while being the water level top dead center 4221 setting, now the first through hole 611 and fifth hole 6112 conductings, the second through hole 612 and the 6th through hole 6121 conductings, thereby realizing main valve epicoele 413 is conducted with main valve entrance point 411, initiatively the top pressure of the isolating film 52 in main body 51 equates with below pressure, main valve 41 in closed condition not to the interior infusion fluid of liquid collector 45;
In the time that the liquid in liquid collector 45 reduces, flap 62 rotates the longitudinal movement along with float lever 422, in the time that floating drum 421 reaches people and is the water level lower dead center 4222 setting, the first through hole 611 and fourth hole 6111 conductings, third through-hole 613 and the 7th through hole 6131 conductings, be conducted with ambient atmosphere thereby realize main valve epicoele 413, and then realize all emptying the pressure in main valve epicoele main valve epicoele 413, finally reached the object without back pressure; Simultaneously, because the below pressure of the isolating film 52 in active main body 51 is greater than top pressure (now the top pressure of isolating film 52 is zero), the pressure difference forming can promote motion assembly 414 and move upward, realized opening of main valve 41, make outside liquid by main valve and corresponding pipeline to the interior infusion fluid of liquid collector 45, finally to have realized the control to liquid level.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. without a back pressure type fluid level control valve, comprise main valve, floating drum pilot valve, the first conduit and the second conduit; Described main valve comprises main valve entrance point, main valve outlet end, main valve epicoele and motion assembly, and described floating drum pilot valve comprises valve seat, flap, floating drum, float lever and connecting rod; It is characterized in that, on described valve seat, be provided with the first through hole, the second through hole and third through-hole, all non-connections between any two through holes in described the first through hole, the second through hole and third through-hole; On described flap, be provided with fourth hole, fifth hole, the 6th through hole and the 7th through hole, non-connection between described fourth hole and fifth hole, described fourth hole is connected with the 7th through hole, and described fifth hole is connected with the 6th through hole; Described flap is arranged between valve seat and connecting rod, and described flap is rotary structure, and described flap is connected with float lever by connecting rod;
Described the first through hole is connected with main valve epicoele by the first conduit, and described the second through hole is connected with main valve entrance point by the second conduit, and described third through-hole is directly connected with ambient atmosphere;
On described float lever, be provided with water level top dead center and water level lower dead center, described float lever is the center region through floating drum in Vertical direction, is slideable connection between described float lever and floating drum.
2. one as claimed in claim 1 is without back pressure type fluid level control valve, it is characterized in that, described the first through hole is consistent with the pore size of fourth hole, fifth hole, and described the second through hole is consistent with the pore size of the 6th through hole, and described third through-hole is consistent with the size of the 7th through hole.
3. one as claimed in claim 1, without back pressure type fluid level control valve, is characterized in that, described third through-hole also can be connected with main valve outlet end by conduit.
4. one as claimed in claim 1, without back pressure type fluid level control valve, is characterized in that, described water level top dead center and water level lower dead center are free-standing structure.
5. one as claimed in claim 1, without back pressure type fluid level control valve, is characterized in that, described floating drum pilot valve also comprises counterweight block.
6. one as claimed in claim 1, without back pressure type fluid level control valve, is characterized in that, described motion assembly comprises moving person, isolating film and spring structure.
7. one as claimed in claim 6, without back pressure type fluid level control valve, is characterized in that, described moving person lower end is provided with yielding rubber.
8. one as claimed in claim 6, without back pressure type fluid level control valve, is characterized in that, the material of described isolating film is rubber.
9. one as claimed in claim 6, without back pressure type fluid level control valve, is characterized in that, described spring structure is arranged at the top of moving person.
10. one as claimed in claim 7, without back pressure type fluid level control valve, is characterized in that, the edge of described isolating film is provided with some holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420027513.7U CN203670895U (en) | 2014-01-17 | 2014-01-17 | Non-back-pressure type liquid level control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420027513.7U CN203670895U (en) | 2014-01-17 | 2014-01-17 | Non-back-pressure type liquid level control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203670895U true CN203670895U (en) | 2014-06-25 |
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ID=50967192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420027513.7U Expired - Fee Related CN203670895U (en) | 2014-01-17 | 2014-01-17 | Non-back-pressure type liquid level control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203670895U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103727263A (en) * | 2014-01-17 | 2014-04-16 | 上海康措流体控制有限公司 | Non-backpressure type liquid level control valve |
-
2014
- 2014-01-17 CN CN201420027513.7U patent/CN203670895U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103727263A (en) * | 2014-01-17 | 2014-04-16 | 上海康措流体控制有限公司 | Non-backpressure type liquid level control valve |
| CN103727263B (en) * | 2014-01-17 | 2017-05-31 | 上海康措流体控制有限公司 | A kind of non-backpressure type liquid level control |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140625 Termination date: 20150117 |
|
| EXPY | Termination of patent right or utility model |