CN201507466U - Non-return and hemi-ball combination valve for three-way centrifugal pumps - Google Patents
Non-return and hemi-ball combination valve for three-way centrifugal pumps Download PDFInfo
- Publication number
- CN201507466U CN201507466U CN2009201959689U CN200920195968U CN201507466U CN 201507466 U CN201507466 U CN 201507466U CN 2009201959689 U CN2009201959689 U CN 2009201959689U CN 200920195968 U CN200920195968 U CN 200920195968U CN 201507466 U CN201507466 U CN 201507466U
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- valve
- positioning seat
- return
- way valve
- seal ring
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- Expired - Fee Related
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Abstract
The utility model relates to a valve, in particular to a novel combination valve which is provided with two functions of non-return and ball valves and is used for centrifugal pumps on liquid medium delivery pipelines. By adopting the following technical scheme, a non-return and hemi-ball combination valve for three-way centrifugal pumps is characterized in that the combination valve comprises a three-way valve body, wherein an inlet channel and two outlet channels are arranged on the three-way valve body, a ball body valve core which is used to control an inlet to conduct and close through material impulsive force and self-gravity force is arranged on the inlet channel, and two outlet channels are used to control rate of flow through a semi-ball valve core on the valve body. By adopting the above technical scheme, the combination valve overcomes defects in the prior art and provides a novel non-return and hemi-ball combination valve for three-way centrifugal pumps, and the combination valve has the advantages of rational structure and convenient and simple utilization.
Description
Technical field
The utility model relates to a kind of valve, relates to a kind of centrifugal pump specifically and is used to carry the novel combined valve with non-return, two kinds of functions of ball valve on the liquid medium pipeline.
Background technique
In the prior art, particularly at medicine, chemical industry, in the field of food, adopt centrifugal pump as the equipment of carrying liquid material mostly, its typical pipeline distributing chart, as shown in Figure 1, this piping method needs to install three ball valves in pipeline, not only during the high installation fee of cost, effort, not only loaded down with trivial details but also be unfavorable for that the workman operates, and very easily damage centrifugal pump, the workload that increases service worker greatly particularly delays production, causes unnecessary loss, generally speaking disadvantage the more, its drawback is in particular in convenient: 1, when conveying material, need open 3,4 valves, cycling start again, also to adjust this two valves repeatedly, just can make the material that transfers out reach the optimised process requirement according to the requirement of following operation.In actual production, operator will start several pumps sometimes simultaneously, carry different materials.Will adjust more valve repeatedly, and so just be too busy to do it, and transfer this to forget that sometimes, spirit is not concentrated slightly, will cause damage to pump.Especially when carrying solvent, the adjustment of flow is even more important, because various solvents are conditional at ducted flow velocity, hypervelocity will produce static and serious security incident takes place.In addition,, pump is built the pressure, also cause the damage of centrifugal pump easily if operator do not open 3 valves or 4 valves with regard to cycling start.2, broken material after, in closing down the process of centrifugal pump, requiring in accordance with regulations is should first standard-sized sheet valve 4, makes its material infinite reflux, throttle down 3 again, last termination of pumping.Because complex operation, the often contrary rules of operator and row, this just causes ducted clout to be fed back into rapidly in the pump chamber, makes the impeller high speed reverse rotation, the impeller nut exoneration, impeller breaks away from pump shaft, and gently then impeller damages, pump chamber wearing and tearing, pump shaft bending deflection, heavy then damage mechanical seal and make it inefficacy.Every mechanical seal is worth all about 2-3 is thousand yuan, causes great waste, not only delays production, returns service worker and brings work heavy in a large number, that repeat.If 3 run into unexpected power failure, the damage of centrifugal pump also very easily takes place.
Summary of the invention
The purpose of this utility model is to overcome the prior art defective, provides a kind of rational in infrastructure, novel tee centrifugal pump non-return, half-ball combination valve easy to use.
Realize above-mentioned purpose, the utility model adopts following technological scheme: a kind of tee centrifugal pump non-return, half-ball combination valve, it is characterized in that: include three way valve, described three way valve is provided with an inlet passage and two outlet passages, described inlet passage is provided with the spheroid spool of controlling the import conducting and closing by material impulse force and self gravitation, and described two outlet passages are by being arranged on the hemisphere spool control flow rate on the valve body.
By adopting such scheme, in use, then no matter flap is on any position, all need not first switch valve recurrence pump dnockout, and pump is had no infringement, and when needing to adjust flow, only need to adjust the position of hemisphere spool, just can reach desirable flow.When unexpected power failure or artificial violate operation when closing centrifugal pump, material stock in the carrier pipe is stuck in the pipeline along with closing of inlet passage, will not return at a high speed in the pump chamber, and cause the damage of centrifugal pump, a large amount of maintenance works has not only been saved in this design, save a large amount of centrifugal pump spare parts again, prolonged the working life of pump.
Further setting of the present utility model is: the upper/lower terminal of described three way valve is provided with to be fixed with valve body and constitutes the upper and lower positioning seat that is tightly connected, be respectively arranged with valve rod on the described upper and lower positioning seat, described hemisphere spool is fixedly installed on the valve rod, valve rod on the described down positioning seat is arranged on down on the positioning seat by setting sleeve and positioning seat, cooperates by filler and Gland realization motive sealing between the described valve rod of going up positioning seat and the last positioning seat.
By adopting technique scheme, make the valve arrangement compact and reasonable, practical and convenient, the motive sealing fiting effect between valve rod and the hemisphere valve body is better.
Further setting of the present utility model is: be set with check-valve lever on the described spheroid spool, the inlet passage of described three way valve is provided with guide plate, and described check-valve lever is set on the pilot hole of guide plate and constitutes the guiding slippage with it and cooperates.
By adopting technique scheme, can guarantee the stability of spheroid spool work.
The utility model further is provided with: the inlet end of the inlet passage of described three way valve is provided with seal ring, the conducting that cooperates the inlet passage that constitutes three way valve of described spheroid spool and seal ring and closing, be respectively arranged with seal ring on two outlet passages of described three way valve, the cooperation that constitutes two outlet passage flow sizes that cooperates of described hemisphere spool and seal ring; The described valve rod of going up positioning seat extends goes up the positioning seat setting, and its top is set with handle.
By adopting such scheme, make the sealing effect of valve better, and rational in infrastructure, easy for installation.
Below in conjunction with accompanying drawing the utility model is described in further detail
Description of drawings
Fig. 1 is the practical state principle schematic of prior art;
Fig. 2 is the utility model embodiment's a stereogram;
Fig. 3 is the utility model example structure schematic representation 1;
Fig. 4 is the utility model example structure schematic representation 2.
Embodiment
As Fig. 2, Fig. 3 and shown in Figure 4, a kind of tee centrifugal pump non-return, half-ball combination valve, include three way valve 1, described three way valve 1 is provided with an inlet passage 2 and two outlet passages 3, described inlet passage 2 is provided with the spheroid spool 21 of controlling the import conducting and closing by material impulse force and self gravitation, here be noted that when this valve is installed its inlet passage 2 below, spheroid spool 21 could be closed inlet passage 2 by self gravitation like this, spheroid spool 21 might not be spherical in addition, also other shape can be made, also square can be made as hemisphere or 1/3rd balls; Described two outlet passages 3 are by being arranged on hemisphere spool 4 control flow rate on the valve body 1.The utility model embodiment adopts such scheme, and in use, then no matter flap is on any position, all need not be first switch valve recurrence pump dnockout, and pump is had no infringement, when needing to adjust flow, only need to adjust the position of hemisphere spool 4, just can reach desirable flow.When unexpected power failure or artificial violate operation when closing centrifugal pump, material stock in the carrier pipe is stuck in the pipeline along with closing of inlet passage 2, will not return at a high speed in the pump chamber, and cause the damage of centrifugal pump, a large amount of maintenance works has not only been saved in this design, save a large amount of centrifugal pump spare parts again, prolonged the working life of pump.
In the utility model embodiment, on the described three way valve 1, following two ends be provided with three way valve 1 fixing and constitute be tightly connected on, following positioning seat 5,6, on described, following positioning seat 5, be respectively arranged with valve rod 7 on 6, described hemisphere spool 4 is fixedly installed on the valve rod 7, valve rod 7 on the described positioning seat 5 down is arranged on down on the positioning seat 5 by setting sleeve 8 and positioning seat 9, cooperate by filler 10 and Gland 11 realization motive sealings between the described valve rod 7 of going up positioning seat 6 and the last positioning seat 6, the described valve rod 7 of going up positioning seat 6 extends goes up positioning seat 6 settings, and its top is set with handle 12.Adopt technique scheme, make the valve arrangement compact and reasonable, easy to use, motive sealing fiting effect between valve rod 7 and the hemisphere valve body 4 is better, control hemisphere spools 4 by handle 12 in addition, thereby realize two assignment of traffic between the outlet passage 3, method is very simple.In the utility model embodiment, be set with check-valve lever 211 on the described spheroid spool 21, the inlet passage 2 of described three way valve 1 is provided with guide plate 22, also constituting the guiding slippage on the pilot hole that is set in guide plate 22 of described check-valve lever 211 with it cooperates, can guarantee the stability of spheroid spool 21 work like this, certainly check-valve lever 211 is not set and guide plate 22 also is feasible.
In the utility model embodiment, the inlet end of the inlet passage 2 of described three way valve 1 is provided with seal ring 23, the conducting that cooperates the inlet passage 2 that constitutes three way valve 1 of described spheroid spool 21 and seal ring 23 and closing, be respectively arranged with seal ring 31 on two outlet passages 3 of described three way valve 1, the cooperation that constitutes two outlet passage 3 flow sizes that cooperates of described hemisphere spool 4 and seal ring 31.
Claims (6)
1. a tee centrifugal pump is with non-return, half-ball combination valve, it is characterized in that: include three way valve, described three way valve is provided with an inlet passage and two outlet passages, described inlet passage is provided with the spheroid spool of controlling the import conducting and closing by material impulse force and self gravitation, and described two outlet passages are by being arranged on the hemisphere spool control flow rate on the valve body.
2. tee centrifugal pump according to claim 1 non-return, half-ball combination valve, it is characterized in that: the upper/lower terminal of described three way valve is provided with to be fixed with valve body and constitutes the upper and lower positioning seat that is tightly connected, be respectively arranged with valve rod on the described upper and lower positioning seat, described hemisphere spool is fixedly installed on the valve rod, valve rod on the described down positioning seat is arranged on down on the positioning seat by setting sleeve and positioning seat, cooperates by filler and Gland realization motive sealing between the described valve rod of going up positioning seat and the last positioning seat.
3. tee centrifugal pump according to claim 1 and 2 non-return, half-ball combination valve, it is characterized in that: be set with check-valve lever on the described spheroid spool, the inlet passage of described three way valve is provided with guide plate, and described check-valve lever is set on the pilot hole of guide plate and constitutes the guiding slippage with it and cooperates.
4. tee centrifugal pump according to claim 1 and 2 non-return, half-ball combination valve, it is characterized in that: the inlet end of the inlet passage of described three way valve is provided with seal ring, the conducting that cooperates the inlet passage that constitutes three way valve of described spheroid spool and seal ring and closing, be respectively arranged with seal ring on two outlet passages of described three way valve, the cooperation that constitutes two outlet passage flow sizes that cooperates of described hemisphere spool and seal ring.
5. tee centrifugal pump according to claim 2 non-return, half-ball combination valve is characterized in that: the described valve rod of going up positioning seat extends goes up the positioning seat setting, and its top is set with handle.
6. tee centrifugal pump according to claim 3 non-return, half-ball combination valve, it is characterized in that: the inlet end of the inlet passage of described three way valve is provided with seal ring, the conducting that cooperates the inlet passage that constitutes three way valve of described spheroid spool and seal ring and closing, be respectively arranged with seal ring on two outlet passages of described three way valve, the cooperation that constitutes two outlet passage flow sizes that cooperates of described hemisphere spool and seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201959689U CN201507466U (en) | 2009-09-07 | 2009-09-07 | Non-return and hemi-ball combination valve for three-way centrifugal pumps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201959689U CN201507466U (en) | 2009-09-07 | 2009-09-07 | Non-return and hemi-ball combination valve for three-way centrifugal pumps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201507466U true CN201507466U (en) | 2010-06-16 |
Family
ID=42468593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201959689U Expired - Fee Related CN201507466U (en) | 2009-09-07 | 2009-09-07 | Non-return and hemi-ball combination valve for three-way centrifugal pumps |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201507466U (en) |
-
2009
- 2009-09-07 CN CN2009201959689U patent/CN201507466U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100616 Termination date: 20180907 |