CN204921344U - A suction valves for reciprocating pump - Google Patents
A suction valves for reciprocating pump Download PDFInfo
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- CN204921344U CN204921344U CN201520605652.8U CN201520605652U CN204921344U CN 204921344 U CN204921344 U CN 204921344U CN 201520605652 U CN201520605652 U CN 201520605652U CN 204921344 U CN204921344 U CN 204921344U
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- valve
- drain valve
- drain
- water
- suction metering
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Abstract
The utility model discloses a suction valves for reciprocating pump, include sealing connection's the pump body, combination valve and gland packing in proper order, the gland packing is used for installing the plunger, the combination valve includes: the disk seat, the center of disk seat is used for a water, sets up the inlet opening around the wash port, the setting in the wash port can with valve seat seal's drain valve, set up the cyclic annular valve plate that is close to gland packing one side in the drain valve, be fixed in the fixing base that the drain valve lies in the echelonment of a side end of gland packing, spacing elastic component between fixing base and valve plate. The valve plate separates with the disk seat under water impact, and rivers get into. Rivers back down the drain valve through the drain valve during drainage, and rivers flow. The utility model provides a suction valves, absorb water with the process of drainage all through valve completion of combination valve to combination valve detachably is connected with the pump body and the gland packing of both sides, adds degree of difficulty reduction in man -hour, even the processing failure can not lead to the fact harm to big parts such as the pump body and gland packing yet.
Description
Technical field
The utility model relates to hydrovalve technical field, specifically relates to a kind of suction metering valve group for reciprocating pump.
Background technique
Reciprocating pump relies on the to-and-fro motion in pumping cylinder of piston, plunger or barrier film to make swept volume in cylinder alternately increase and reduce the positive displacement pump carried liquid or make it supercharging.The main feature of reciprocating pump is: efficiency is high and efficient district is wide; Can reach very high pressure, pressure change affects flow hardly, thus can provide constant flow; There is suction capacity, can conveying liquid, gas mixture etc.Please refer to Fig. 1, be the sectional drawing of the reciprocating pump pump housing in prior art, left part is pump body structure, can find out in figure, with the center line of the pump housing for boundary, bottom is suction valve group, for being drawn in the pump housing by liquid, top is expulsion valve group, for being discharged by the liquid in the pump housing.For temporarily storing the liquid storage cylinder sucking liquid between suction valve group and expulsion valve group.Suction valve group, liquid storage cylinder and expulsion valve group in the vertical direction distribute from bottom to top, and are all opened in pump body.Suction valve group contains spring, sucks cover, valve pocket, position-limited lever, bonnet; Expulsion valve group contains spring, valve seat, valve pocket etc. nine, and also have O RunddichtringO in addition, each cylinder has 9, and the reciprocating pump generally used at present is three cylinder reciprocating pump, and parts are a lot.And the pump housing has strict requirement for the precision of processing, as long as there is place's seal ring precision not enough in a cylinder, this pump housing just cannot use, and what the conventional pump housing was minimum has more than 40 kilogram, and large has 100-300 kilogram, and processing has a big risk.
Therefore, how to design and be a kind ofly processed into the high valve group of power, avoiding the whole pump housing to scrap, is those skilled in the art's technical issues that need to address.
Model utility content
For solving the problems of the technologies described above, the utility model provides a kind of suction metering valve group for reciprocating pump, comprises the pump housing, combination brake switch and proporting and the Stuffing box that are tightly connected successively; Described Stuffing box inner hollow, for installing plunger; Described combination brake switch and proporting comprises:
The valve seat of plate-like, the weep hole for water outlet is offered at the center of described valve seat, offers the water inlet of inclination in the surrounding of described weep hole;
To be arranged in described weep hole can with the drain valve of described valve base sealing, described drain valve is tubular, and inside is the cavity for draining;
Be arranged at the ring-type valve plate of described drain valve near described Stuffing box side, described valve plate is used for the outflow end of described water inlet to seal;
Be fixed on the stair-stepping fixed base that described drain valve is positioned at a side end of described Stuffing box;
Be limited in the elastic component between described fixed base and described valve plate.
Alternatively, the waterexit end of described drain valve is one side closed and in taper, and with described valve seat fitted seal, described drain valve is offered can the osculum of water outlet.
Alternatively, described osculum can be covered by the inwall of described valve seat, and quantity is three and ovalize, and three described osculums are opened on described drain valve equably.
Alternatively, the axis of multiple described water inlet is positioned on same conical surface, offers the water flowing chamber of ring-type in the waterexit end of described water inlet 212; Described elastic component is spring.
Alternatively, the outer wall that described drain valve stretches out described valve seat also offers blasthole.
Alternatively, described blasthole arranges two circles around the axis of described drain valve.
Alternatively, the described pump housing arranges drain chamber near the side of described drain valve, and the bottom of the described pump housing arranges water-inlet cavity, and described water-inlet cavity is communicated with described water inlet.
Alternatively, a set of reciprocating pump comprises suction metering valve group described in three groups, and described in three groups, the described water-inlet cavity of suction metering valve group is interconnected, and described in three groups, drain chamber is interconnected.
Alternatively, described drain chamber goes back Bonding pressure table and safety valve.
The suction metering valve group that the utility model provides, for reciprocating pump, comprise the pump housing, combination brake switch and proporting and Stuffing box successively, three seals fixing mutually, the inner hollow of Stuffing box, for installing plunger.Combination brake switch and proporting is used for water suction and draining, and Stuffing box is as interim water storage, and the pump housing is as passage when water inlet and water outlet.Combination brake switch and proporting comprises valve seat, drain valve, fixed base, the parts such as valve plate and elastic component of plate-like.The water inlet be arranged on valve seat makes water inject Stuffing box from the pump housing, and weep hole makes water from Stuffing box discharge currents to the pump housing, in order to prevent water inlet and weep hole from causing interference, water inlet is set to the pattern tilted.In the weep hole that valve seat center is arranged, arrange drain valve, drain valve is tubular, and inside is can the cavity of draining, and water flows out through drain valve.Arrange the valve plate of a loop around drain valve, valve plate plays the effect being sealed into water hole.The end that drain valve extend into Stuffing box arranges stair-stepping fixed base, between fixed base and valve plate, be provided with elastic component, by elastic component by valve plate and drain valve press seal.
Current enter into Stuffing box through water inlet from the pump housing, and in water inlet process, valve plate is separated with valve seat under water impact, and current enter, and rear valve plate of having intake reaches sealing effect at the tight valve seat of the pressure of elastic component.During draining, current are through drain valve, backed down by drain valve, and current flow out, and draining terminates rear drain valve makes drain valve and valve base sealing under the effect of elastic component elastic force.Suction metering valve group provided by the utility model, the process of water suction and draining is all completed by combination brake switch and proporting valve, its volume is little, and combination brake switch and proporting is removably connected with the pump housing of both sides and Stuffing box, and the parts used are few, adds man-hour difficulty and reduce, unsuccessfully also can not work the mischief to the large parts such as the pump housing and Stuffing box even if process, reduce processing risk, improve and be processed into power, there is economic benefit well.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the cross-sectional view of reciprocating pump in prior art;
The cross-sectional view of the reciprocating pump that Fig. 2 provides for the utility model;
Fig. 3 is the cross-sectional view of combination brake switch and proporting in Fig. 2;
Fig. 4 is the sectional structure chart of drain valve in Fig. 3;
Fig. 5 is A-A schematic cross-section in Fig. 4;
Fig. 6 is B-B schematic cross-section in Fig. 4;
Fig. 7 is C-C schematic cross-section in Fig. 4;
Fig. 8 is the sectional structure chart of valve seat in Fig. 2;
Fig. 9 is the construction profile of three cylinder reciprocating pump.
Wherein:
The pump housing 1, drain chamber 11, water-inlet cavity 12, combination brake switch and proporting 2, valve seat 21, weep hole 211, water inlet 212, water flowing chamber 213, drain valve 22, osculum 221, blasthole 222, valve plate 23, fixed base 24, elastic component 241, Stuffing box 3, plunger 31, pressure gauge 4, safety valve 5.
Embodiment
Core of the present utility model is to provide a kind of suction metering valve group for reciprocating pump, which raises the success rate of valve group processing, avoids the whole pump housing and scrap, have economic benefit well.
In order to make those skilled in the art understand the technical solution of the utility model better, below in conjunction with accompanying drawing and concrete mode of execution, the suction metering valve group that the utility model provides is described in detail.
As shown in Figure 2, the cross-sectional view of the suction metering valve group provided for the utility model.This suction metering valve group specifically comprises the pump housing 1, combination brake switch and proporting 2 and Stuffing box 3, mutually carries out hermetic seal and fix between three, and guarantee can not seepage, and pump 1, combination brake switch and proporting 2 and Stuffing box 3 can be dismantled respectively.Stuffing box 3 is as the space of temporary transient water storage, inner hollow, for installing plunger 31, plunger 31 can be inner reciprocating at Stuffing box 3, as shown in Figure 3, be the cross-sectional view of combination brake switch and proporting 2, make when plunger 31 is moved to the left the inside of Stuffing box 3 form relative vacuum, pressure reduces, and under the effect of hydraulic pressure, current enter into Stuffing box 3; When plunger 31 moves right, the space in Stuffing box 3 is compressed by plunger 31, and water is extruded from Stuffing box 3, discharges through combination brake switch and proporting 2, enters into the pump housing 1, completes a suction action.Suction metering valve group provided by the utility model, the process of water suction and draining is all completed by combination brake switch and proporting 2 one valves, only have a Stuffing box 3 as water storage parts, make volume little, and combination brake switch and proporting 2 is removably connected with the pump housing 1 of both sides and Stuffing box 3, and the parts used are few, Sealing is few, adds difficulty reduction in man-hour, unsuccessfully also can not work the mischief to large parts such as the pump housing 1 and Stuffing boxes 3 even if process, reduce processing risk, improve and be processed into power.
Particularly, combination brake switch and proporting 2 comprises the valve seat 21 of plate-like, offers weep hole 211 at the center of valve seat 21, as passage during draining, offers a circle water inlet 212, as the passage that current enter in the surrounding of weep hole 211.In order to avoid water inlet 212 and weep hole 211 cause interference, water inlet 212 is obliquely installed, strengthen the distance between one end, water inlet 212 and weep hole 211, in embodiment of the present utility model, multiple water inlet 212 is arranged along the conical surface, namely the axis of multiple water inlet 212 is positioned on same conical surface, the water flowing chamber 213 of annular is offered in the waterexit end of multiple water inlet 212, shown in Figure 8, can be distributed in equably among each water inlet 212 after current enter into water flowing chamber 213, make the pressure of various piece identical.Arrange in weep hole 211 and can realize the drain valve 22 of seal action with valve seat 21, drain valve 22 is the tubular structure of inner hollow, and inside is the cavity for draining, and current flow in drain valve 22.At the valve plate 23 of the outer installment ring-type of drain valve 22, valve plate 23 by drain valve 22 around, valve plate 23 is positioned at the side near Stuffing box 3, and can contact with valve seat 21, compressed by the outflow end of water inlet 212 by impacting force, when compressing, current cannot enter in Stuffing box 3 by water inlet 212, and outflow end mentioned here is for water inlet 212, one end that current start to enter water inlet 212 is held for flowing into, and the one end of flowing out water inlet 212 is outflow end.The end extending into Stuffing box 3 side at drain valve 22 arranges stair-stepping fixed base 24, and the mode that fixed base 24 is threaded connection and drain valve 22 are fixed, certainly, other the Placement such as grafting is adopted also to be fine, the stepped structure of fixed base 24, center has through hole, for flowing water.The spacing elastic component 241 be arranged between fixed base 24 and valve plate 23, one end seat 24 that is fixed clamps, the other end contacts with valve plate 23, elastic component 241 is positioned at the outside of drain valve 22, elastic component 241 is for providing the elastic force to both sides, for valve plate 23 and drain valve 22 are pressed on valve seat 21, ensure sealing when there is no water impact.Preferably, the elastic component 241 adopted in the utility model can be spring, certainly, adopts other elastic member herein, as spring sheet etc. is also fine, in this no limit.
When intaking, current enter from water inlet 212, valve plate 23 is backed down, can enter in Stuffing box 3, because spring is respectively used to valve plate 23 and drain valve 22 to be pressed on valve seat 21 to the pressure of both sides, therefore ensure that the sealing of drain valve 22 when intaking, water impact during water inlet can make drain valve 22 seal with valve seat 21 more closely.Correspondingly, when draining, water impact drain valve 22, drain valve 22 is separated with valve seat 21, and water flows out from space, and now the water impact impacting force that can make valve plate 23 is larger, the sealing of water inlet 212 with the elastic force common guarantee of spring.The seal ring of ring-type is set in the side contacted with water inlet 212, can the materials such as silica gel be adopted, ensure the effect that valve plate 23 seals.
In the utility model, the side, waterexit end of drain valve 22 is closed design, in cone structure, the structure of taper coordinates with weep hole 211, makes it be pressed on valve seat 21, certainly, also in the structure of taper, the materials such as silica gel can be set for ensureing sealing effect better.Because waterexit end is closed, therefore offering on the sidewall of drain valve 22 can the osculum 221 of water outlet, and after drain valve 22 is separated with valve seat 21, current flow out from osculum 221, enter into the pump housing 1.Preferably, in present embodiment, osculum 221 is set to three, three osculums 221 measure-alike, be set to ellipse, and three osculums 221 are opened on drain valve 22 equably, the length of osculum 221 is slightly shorter than the thickness of valve seat 21, and namely osculum 221 can be covered by the inwall of valve seat 21 completely.
Further, in order to draining more easily, the outer wall stretching out valve seat 21 offers blasthole 222, particularly at drain valve 22, the outer wall of blasthole 222 along drain valve 22 distributes by the utility model in the form of a ring, centered by the axis of drain valve 22 around, be specifically set to two circles, as shown in Figure 4, for the sectional structure chart of drain valve 22, two to ensphere the quantity in water hole 222 identical, and alternately offer, and is shown in Fig. 6 and Fig. 7.When draining, current can not only enter drain valve 22 from fixed base 24 one end, and the water in drain valve 22 side can also enter from inlet opening 22, strengthen inflow, ensure the fluency of draining.
As shown in Figure 5, for A-A in Fig. 4 to sectional structure chart.At the pump housing 1, drain chamber 11 is set near the side of drain valve 22, drain chamber 11 is also in column, diameter comparatively weep hole 211 is larger, the water of discharging from weep hole 211 is introduced in drain chamber 11, pipeline again by being communicated with drain chamber 11 flows out the pump housing 1, drain chamber 11 plays the effect of buffering, avoids being directly injected in the less pipeline of size, causes impeded drainage.The pump housing 1 also arranges water-inlet cavity 12, and water-inlet cavity 12 is communicated with water inlet 212, and current enter water inlet 212 from water-inlet cavity 12 by water flowing chamber 213, makes the pressure in each water inlet 212 identical.
Particularly, the utility model for be three cylinder reciprocating pump, as shown in Figure 9, for the construction profile of three cylinder reciprocating pump, three groups of above-mentioned suction metering valve groups are comprised in a set of reciprocating pump, water-inlet cavity 12 between three groups of suction metering valve groups is interconnected, and the drain chamber 11 between three groups of suction metering valve groups is interconnected, and jointly carries out absorbing water and draining.
Concerning reciprocating pump, also arrange pressure gauge 4 and safety valve 5, both are all communicated with drain chamber 11, and pressure gauge 4 is for monitoring the pressure in drain chamber 11, and safety valve 5 can adopt relief valve, can gush a part of water when pressure is excessive, guarantees the Security of drain chamber 11.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein, when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (9)
1. for a suction metering valve group for reciprocating pump, it is characterized in that, comprise the pump housing (1), combination brake switch and proporting (2) and the Stuffing box (3) that are tightly connected successively; Described Stuffing box (3) inner hollow, for installing plunger (31); Described combination brake switch and proporting (2) comprising:
The valve seat (21) of plate-like, the weep hole (211) for water outlet is offered at the center of described valve seat (21), offers the water inlet (212) of inclination in the surrounding of described weep hole (211);
Be arranged on the drain valve (22) that can seal with described valve seat (21) in described weep hole (211), described drain valve (22) is in tubular, and inside is the cavity for draining;
Be arranged at the ring-type valve plate (23) of described drain valve (22) near described Stuffing box (3) side, described valve plate (23) is for sealing the outflow end of described water inlet (212);
Be fixed on the stair-stepping fixed base (24) of the side end described drain valve (22) being in described Stuffing box (3);
Be limited in the elastic component (241) between described fixed base (24) and described valve plate (23).
2. suction metering valve group according to claim 1, it is characterized in that, the waterexit end of described drain valve (22) is one side closed and in taper, with described valve seat (21) fitted seal, described drain valve (22) is offered can the osculum (221) of water outlet.
3. suction metering valve group according to claim 2, it is characterized in that, described osculum (221) can be covered by the inwall of described valve seat (21), quantity is three and ovalize, and three described osculums (221) are opened on described drain valve (22) equably.
4. suction metering valve group according to claim 3, is characterized in that, the axis of multiple described water inlet (212) is positioned on same conical surface, offers the water flowing chamber (213) of ring-type in the waterexit end of described water inlet (212); Described elastic component (241) is spring.
5. the suction metering valve group according to any one of Claims 1-4, is characterized in that, the outer wall that described drain valve (22) stretches out described valve seat (21) also offers blasthole (222).
6. suction metering valve group according to claim 5, is characterized in that, described blasthole (222) arranges two circles around the axis of described drain valve (22).
7. suction metering valve group according to claim 6, it is characterized in that, the described pump housing (1) arranges drain chamber (11) near the side of described drain valve (22), the bottom of the described pump housing (1) arranges water-inlet cavity (12), and described water-inlet cavity (12) is communicated with described water inlet (212).
8. suction metering valve group according to claim 7, is characterized in that, a set of reciprocating pump comprises suction metering valve group described in three groups, and the described water-inlet cavity (12) of suction metering valve group described in three groups is interconnected, and described in three groups, drain chamber (11) is interconnected.
9. suction metering valve group according to claim 8, is characterized in that, described drain chamber (11) is gone back Bonding pressure table (4) and safety valve (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520605652.8U CN204921344U (en) | 2015-08-11 | 2015-08-11 | A suction valves for reciprocating pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520605652.8U CN204921344U (en) | 2015-08-11 | 2015-08-11 | A suction valves for reciprocating pump |
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| Publication Number | Publication Date |
|---|---|
| CN204921344U true CN204921344U (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520605652.8U Active CN204921344U (en) | 2015-08-11 | 2015-08-11 | A suction valves for reciprocating pump |
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| CN (1) | CN204921344U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105822539A (en) * | 2016-05-17 | 2016-08-03 | 宁波同力泵业有限公司 | Combined inlet and outlet one-way valve for reciprocating pump |
| CN106051258A (en) * | 2016-06-24 | 2016-10-26 | 无锡海升高压泵有限公司 | Shock absorption valve of high-pressure pump |
| CN108005896A (en) * | 2017-10-21 | 2018-05-08 | 王友宏 | One kind is without intersection entire combination pump head body |
-
2015
- 2015-08-11 CN CN201520605652.8U patent/CN204921344U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105822539A (en) * | 2016-05-17 | 2016-08-03 | 宁波同力泵业有限公司 | Combined inlet and outlet one-way valve for reciprocating pump |
| CN106051258A (en) * | 2016-06-24 | 2016-10-26 | 无锡海升高压泵有限公司 | Shock absorption valve of high-pressure pump |
| CN108005896A (en) * | 2017-10-21 | 2018-05-08 | 王友宏 | One kind is without intersection entire combination pump head body |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |