CN201858398U - Anti-reflux device - Google Patents
Anti-reflux device Download PDFInfo
- Publication number
- CN201858398U CN201858398U CN2010206210744U CN201020621074U CN201858398U CN 201858398 U CN201858398 U CN 201858398U CN 2010206210744 U CN2010206210744 U CN 2010206210744U CN 201020621074 U CN201020621074 U CN 201020621074U CN 201858398 U CN201858398 U CN 201858398U
- Authority
- CN
- China
- Prior art keywords
- opening
- fluid
- runner
- protection device
- confluxing
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Check Valves (AREA)
Abstract
本实用新型是一种防逆流装置，其包含一汇流部，一第一流体输入管路，一第二流体输入管路以及一挡片，该挡片枢接于该汇流部，该挡片可于该汇流部的容置空间内转动，以覆盖该汇流部上与该第一流体输入管路或是该第二流体输入管路连接的开口。该防逆流装置适用于双通回路系统，可以防止该第一流体输入管路处的泵发生故障时，该第二流体输入管路的冷媒逆流至该第一流体输入管路的状况，该防逆流装置除了可避免泵故障时会造成整个机柜的损坏之外，也不会增加系统流阻使得流量减少。
The utility model is a backflow prevention device, which includes a confluence part, a first fluid input pipeline, a second fluid input pipeline and a baffle, the baffle is pivotally connected to the confluence part, and the baffle can be rotated in the accommodating space of the confluence part to cover the opening on the confluence part connected to the first fluid input pipeline or the second fluid input pipeline. The backflow prevention device is suitable for a two-way loop system, and can prevent the refrigerant of the second fluid input pipeline from backflowing to the first fluid input pipeline when a pump at the first fluid input pipeline fails. In addition to preventing the damage to the entire cabinet caused by a pump failure, the backflow prevention device will not increase the system flow resistance to reduce the flow rate.
Description
Technical field
The present invention relates to a kind of hydraulic element, be particularly related to a kind of flow direction control unit, refer in particular to a kind of can preventing in the bilateral circuit system, when the pump at first fluid intake line place breaks down, flow to the backflow protection device of the refrigerant adverse current of the portion of confluxing to the first fluid intake line by the second fluid input tube road.
Background technique
Existing fluid flow guiding all can utilize pipeline to carry out; and regular meeting is equiped with the valve member of control switch on the pipeline; as gate valve etc.; and concerning cooling fluid guiding pipeline; because the situation that the adverse current of cooling fluid may cause rack to damage; so for fear of the cooling fluid adverse current, check equipment quite general necessaries on the pipeline of water conservancy diversion.
Present existing check valve, owing to be to use spring and washer to form, when cooling fluid flows through check valve, can produce bigger flow resistance, and then the flow of reduction script cooling fluid, though existing check valve can prevent the cooling fluid adverse current, can reduce cooling fluid flow greatly, cause the integral heat sink performance to reduce.And if general check valve can only be used in single circuit system, so when the bilateral circuit system, then must use two check valves.
From the above, need badly at present and a kind ofly can be used in the bilateral circuit system simultaneously, and the backflow protection device that does not reduce through fluid flow solves the problem that prior art produces.
Summary of the invention
The present invention is a kind of backflow protection device, and it can prevent in the bilateral circuit system, when the pump at first fluid intake line place breaks down, flow to the situation of the refrigerant adverse current of the portion of confluxing to the first fluid intake line by the second fluid input tube road.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of backflow protection device is characterized in that, comprises:
One portion of confluxing, it has a containing space, and this portion of confluxing comprises one first opening, one second opening and one the 3rd opening;
One first fluid intake line, it comprises a first flow, and this first flow is communicated in this first opening;
One second fluid input tube road, it comprises one second runner, and this second runner is communicated in this second opening;
One fluid output pipe, it comprises one the 3rd runner, and the 3rd runner is communicated in the 3rd opening; And
One catch, it comprises a relative first end, one the second end, and one first relative side, one second side, this first end of this catch are articulated between this first opening and this second opening of this portion of confluxing, and this catch can be in this containing space is that rotate at the center with this first end, this first side can cover this first opening, and this second side can cover this second opening.
Wherein: the material of this catch is stainless steel or plastic cement.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of backflow protection device is characterized in that, comprises:
One portion of confluxing, it has a containing space, and this portion of confluxing comprises one first opening, one second opening and one the 3rd opening;
One first fluid intake line, it comprises a first flow, and this first flow is communicated in this first opening;
One second fluid input tube road, it comprises one second runner, and this second runner is communicated in this second opening;
One fluid output pipe, it comprises one the 3rd runner, and the 3rd runner is communicated in the 3rd opening;
A connection piece, it is connected between this first opening and this second opening of this portion of confluxing; And
One block body, it is connected in this link and this block body is positioned at this containing space, and can the be flowed through fluid of this containing space of this block body promotes and covers this first opening or this second opening, or clogs this first flow or this second runner.
Wherein: this block body is a ball float.
Wherein: this link is articulated between this first opening and this second opening of this portion of confluxing.
Wherein: this link is a rope part.
Wherein: this link is a plastic parts or a metalwork.
Compared with prior art, adopt the advantage that the utlity model has of technique scheme to be: this backflow protection device of the present invention is applicable to the servomechanism rack, when the pump that can prevent this first fluid intake line place breaks down, the refrigerant adverse current that flow to this portion of confluxing by this second fluid input tube road causes the situation of the damage of whole rack to this first fluid intake line.Though this backflow protection device function is identical with existing check valve, but system's flow resistance is increased, the shortcoming that causes fluid flow to reduce, and this backflow protection device can be directly applied for the bilateral circuit system, do not need in each loop all will install a check valve.
Description of drawings
Figure 1A is first embodiment's schematic representation of backflow protection device of the present invention;
Figure 1B is first embodiment's schematic representation of backflow protection device of the present invention;
Fig. 2 A is second embodiment's schematic representation of backflow protection device of the present invention;
Fig. 2 B is second embodiment's schematic representation of backflow protection device of the present invention;
Fig. 3 A is the 3rd embodiment's schematic representation of backflow protection device of the present invention;
Fig. 3 B is the 3rd embodiment's schematic representation of backflow protection device of the present invention.
Description of reference numerals: the 1-portion of confluxing; The 10-containing space; 11-first opening; 12-second opening; 13-the 3rd opening; 2-first fluid intake line; The 20-first flow; The 3-second fluid input tube road; 30-second runner; 4-fluid output tube road; 40-the 3rd runner; The 5-catch; The 50-first end; The 51-the second end; 52-first side; 53-second side; The 6-link; The 7-block body.
Embodiment
For making your juror further cognitive and understanding be arranged to feature of the present invention, purpose and function, hereinafter the spy describes the relevant thin bilge construction of system of the present invention and the theory reason of design, so that the juror can understand characteristics of the present invention, detailed description is presented below:
See also Figure 1A and Figure 1B, Figure 1A and Figure 1B are first embodiment's schematic representation of backflow protection device of the present invention.The invention provides a kind of backflow protection device, it comprises conflux portion's 1, one first fluid intake line, 2, one second fluid input tube roads, 3, one fluid output pipes 4 and a catch 5.This portion 1 of confluxing has a containing space 10, and this portion 1 of confluxing comprises one first opening, 11, one second openings 12 and one the 3rd opening 13; This first fluid intake line 2 comprises a first flow 20, and this first flow 20 is communicated in this first opening 11; This second fluid input tube road 3 comprises one second runner 30, and this second runner 30 is communicated in this second opening 12; This fluid output tube road 4 comprises one the 3rd runner, 40, the three runners 40 and is communicated in the 3rd opening 13; This catch 5 comprises a relative first end 50, one the second end 51, and one first relative side 52, one second side 53, this first end 50 of this catch 5 is articulated between this first opening 11 and this second opening 12 of this portion 1 of confluxing, this catch 5 can be in this containing space 10 is that rotate at the center with this first end 50, and when the pump on this first fluid intake line 2 and this second fluid input tube road 3 all during normal operation, this washer 5 maintains this containing space 10 central authorities; Otherwise, when if the pump on this first fluid intake line 2 or this second fluid input tube road 3 breaks down, cause flowing into this first opening 11 or the flow of this second opening 12 diminishes, then this washer 5 will be subjected to the big flow hydraulic shock from another opening inflow, and with the little opening of these washer 5 steering flows, to block opening in case the refrigerant adverse current, that is to say, when the pump of this first fluid intake line 2 breaks down, the flow that causes flowing into this first opening 11 diminishes, these washer 5 these first openings 11 of deflection, and these first side, 52 these first openings 11 of covering of this catch 5, in like manner, when the pump on this second fluid input tube road 3 breaks down, this washer 5 can be partial to this second opening 12, and these second side, 53 these second openings 12 of covering of this catch 5, and this backflow protection device can avoid rack that fluid countercurrent current causes to damage, and system's flow resistance is increased, and the situation that fluid flow reduces takes place, the fluid in the present embodiment is a refrigerant, but not as limit.
See also Fig. 2 A, Fig. 2 B, Fig. 3 A and Fig. 3 B, Fig. 2 A and Fig. 2 B are second embodiment's schematic representation of backflow protection device of the present invention, and Fig. 3 A and Fig. 3 B are the 3rd embodiment's schematic representation of backflow protection device of the present invention.The invention provides a kind of backflow protection device, it comprises: portion's 1, one first fluid intake line, 2, one second fluid input tube roads, 3, the one fluid output pipes 4 that conflux, a connection piece 6, and a block body 7.This portion 1 of confluxing has a containing space 10, and this portion 1 of confluxing comprises one first opening, 11, one second openings 12 and one the 3rd opening 13; This first fluid intake line 2 comprises a first flow 20, and this first flow 20 is communicated in this first opening 11; This second fluid input tube road 3 comprises one second runner 30, and this second runner 30 is communicated in this second opening 12; This fluid output tube road 4 comprises one the 3rd runner, 40, the three runners 40 and is communicated in the 3rd opening 13; This link 6 is connected between this first opening 11 and this second opening 12 of this portion 1 of confluxing; This block body 7 is connected in this link 6 and this block body 7 is positioned at this containing space 10, and can the be flowed through fluid of this containing space 10 of this block body 7 promotes and covers this first opening 11 or this second opening 12.Among Fig. 2 A and Fig. 2 B, this link 6 is to be articulated between this first opening 11 and this second opening 12 of this portion 1 of confluxing, this block body 7 is rotated with this link 6 in this containing space 10, this block body 7 is a ball float, impulse force with fluid moves, when two inlet pumps all during normal operation, this block body 7 maintains this containing space 10 central authorities, when the pump of an ingress breaks down, this block body 7 will be subjected to the big flow attack of another inlet with this little inlet side of block body 7 deflection flows, and then block this first opening 11 or this second opening 12, or clog this first flow or this second runner in case fluid countercurrent current, fluid in the present embodiment is a refrigerant, but not as limit.And the difference of Fig. 2 A, Fig. 2 B and Fig. 3 A, Fig. 3 B is, in Fig. 2 A and Fig. 2 B, when this link 6 is subjected to fluid impact in this confluxes portion 1, because this link 6 is to be articulated between this first opening 11 and this second opening 12 of this portion 1 of confluxing, so this link 6 can the pivot-connecting position be that rotate at the center, and not bending this link 6 bodies, this link 6 can be plastic parts or metalwork; And in Fig. 3 A and Fig. 3 B, this link 6 is connected between this first opening 11 and this second opening 12 of this portion 1 of confluxing, and because this link 6 is a flexible member, for example one the rope part, when this grade of fluid impact body 7 and this link 6, this link 6 can bend, move or rotate with moving of this grade body 7, but this link 6 does not exceed with above-mentioned.
This backflow protection device of the present invention is applicable to the servomechanism rack, when the pump that can prevent these first fluid intake line 2 places breaks down, the refrigerant adverse current that flow to this portion 1 of confluxing by this second fluid input tube road 3 causes the situation of the damage of whole rack to this first fluid intake line 2.Though this backflow protection device function is identical with existing check valve, but system's flow resistance is increased, the shortcoming that causes fluid flow to reduce, and this backflow protection device can be directly applied for the bilateral circuit system, do not need in each loop all will install a check valve.
More than explanation is just illustrative for the utility model; and nonrestrictive, those of ordinary skills understand, under the situation of the spirit and scope that do not break away from claim and limited; can make many modifications, variation or equivalence, but all will fall within the protection domain of the present utility model.
Claims (7)
1. a backflow protection device is characterized in that, comprises:
One portion of confluxing, it has a containing space, and this portion of confluxing comprises one first opening, one second opening and one the 3rd opening;
One first fluid intake line, it comprises a first flow, and this first flow is communicated in this first opening;
One second fluid input tube road, it comprises one second runner, and this second runner is communicated in this second opening;
One fluid output pipe, it comprises one the 3rd runner, and the 3rd runner is communicated in the 3rd opening; And
One catch, it comprises a relative first end, one the second end, and one first relative side, one second side, this first end of this catch are articulated between this first opening and this second opening of this portion of confluxing, and this catch can be in this containing space is that rotate at the center with this first end, this first side can cover this first opening, and this second side can cover this second opening.
2. backflow protection device according to claim 1 is characterized in that: the material of this catch is stainless steel or plastic cement.
3. a backflow protection device is characterized in that, comprises:
One portion of confluxing, it has a containing space, and this portion of confluxing comprises one first opening, one second opening and one the 3rd opening;
One first fluid intake line, it comprises a first flow, and this first flow is communicated in this first opening;
One second fluid input tube road, it comprises one second runner, and this second runner is communicated in this second opening;
One fluid output pipe, it comprises one the 3rd runner, and the 3rd runner is communicated in the 3rd opening;
A connection piece, it is connected between this first opening and this second opening of this portion of confluxing; And
One block body, it is connected in this link and this block body is positioned at this containing space, and can the be flowed through fluid of this containing space of this block body promotes and covers this first opening or this second opening, or clogs this first flow or this second runner.
4. backflow protection device according to claim 3 is characterized in that: this block body is a ball float.
5. backflow protection device according to claim 3 is characterized in that: this link is articulated between this first opening and this second opening of this portion of confluxing.
6. backflow protection device according to claim 3 is characterized in that: this link is a rope part.
7. backflow protection device according to claim 3 is characterized in that: this link is a plastic parts or a metalwork.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206210744U CN201858398U (en) | 2010-11-22 | 2010-11-22 | Anti-reflux device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206210744U CN201858398U (en) | 2010-11-22 | 2010-11-22 | Anti-reflux device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201858398U true CN201858398U (en) | 2011-06-08 |
Family
ID=44104204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206210744U Expired - Fee Related CN201858398U (en) | 2010-11-22 | 2010-11-22 | Anti-reflux device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201858398U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106795712A (en) * | 2014-07-14 | 2017-05-31 | 韩国机械工业有限公司 | Unpowered anti-backflow device |
-
2010
- 2010-11-22 CN CN2010206210744U patent/CN201858398U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106795712A (en) * | 2014-07-14 | 2017-05-31 | 韩国机械工业有限公司 | Unpowered anti-backflow device |
| CN106795712B (en) * | 2014-07-14 | 2021-04-27 | 韩国机械工业有限公司 | Unpowered reverse flow prevention device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201858398U (en) | Anti-reflux device | |
| CN105874252A (en) | Non return valve for use in water line | |
| CN202946833U (en) | Water eliminating hammer device | |
| CN104713221A (en) | Electric water heater | |
| CN105178343A (en) | Device for conducting siphon drainage by means of drainage ditch | |
| CN201475445U (en) | An angle ball check valve | |
| CN203202313U (en) | One-way valve with water attack prevention function | |
| CN103807477A (en) | Pipeline irrigation pressure adjustable and slowly opening and closing type automatic drainage valve | |
| CN104344032B (en) | For the antifreezing check valve of liquid transmission pipeline | |
| CN104532921A (en) | Valve for blockage and odor-diffusion prevention of sewers | |
| CN211667211U (en) | Integrated bidirectional check valve | |
| CN201180526Y (en) | Sand shovel for horizontal well sand pumping pump | |
| CN202327230U (en) | Combined type overcurrent protective valve | |
| CN208152195U (en) | A kind of sewage pipe of energy water conservancy diversion | |
| CN100451413C (en) | Low energy consumption large flow valve | |
| CN207702002U (en) | A kind of separator tube for discharge of wastewater | |
| CN204114250U (en) | A kind of outlet of plunger pump one-way valve | |
| CN204757341U (en) | Electric water heater | |
| CN206338214U (en) | A kind of water pump flows backwards detection means | |
| CN220523362U (en) | Reverse pressure relief check valve | |
| TWM460962U (en) | Anti-backflow device | |
| CN202767170U (en) | Backflow prevention device | |
| CN100436960C (en) | System and method of keeping normal pressure for water tank of water heater | |
| CN103526818A (en) | Wastewater discharge system for texturing equipment | |
| CN104514942A (en) | Check valve device normally working on conveying pipeline for fluid with solid impurities |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110608 Termination date: 20161122 |