阅读说明：本技术 一种泥浆泵缸套活塞用挡水冷却筒 (Water retaining cooling cylinder for mud pump cylinder sleeve piston ) 是由 薛冰涛 葛宝仙 于翔 于 2020-06-09 设计创作，主要内容包括：本发明提供了一种泥浆泵缸套活塞用挡水冷却筒,包括上筒体和下筒体,所述上筒体和下筒体组合呈圆筒形状,所述上筒体底部外沿固定有上骨架,所述下筒体顶部外沿固定有下骨架,所述上骨架与下骨架扣合连接,所述上骨架和下骨架左端外侧安装有弹簧搭扣,所述上骨架和下骨架右端外侧安装有铰链,所述上筒体、下筒体、上骨架和下骨架的内侧凸起形成环形凸台,所述上筒体顶部安装有冷却水管,所述冷却水管顶部延伸出上筒体设置有螺纹接头,所述冷却水管底部延伸到上筒体内安装有喷水嘴,所述喷水嘴的开口呈月牙形状,该挡水冷却筒安装密封性强,避免冷却水飞溅形成油水混合物造成污染；组装拆卸方便,提升了冷却效果。(The invention provides a water retaining cooling cylinder for a mud pump cylinder sleeve piston, which comprises an upper cylinder body and a lower cylinder body, the upper cylinder body and the lower cylinder body are combined into a cylinder shape, an upper framework is fixed on the outer edge of the bottom of the upper cylinder body, a lower framework is fixed on the outer edge of the top of the lower cylinder body, the upper framework is buckled with the lower framework, the outer sides of the left ends of the upper framework and the lower framework are provided with a spring hasp, hinges are arranged on the outer sides of the right ends of the upper framework and the lower framework, annular bosses are formed on the inner sides of the upper barrel body, the lower barrel body, the upper framework and the lower framework in a protruding mode, the top of the upper cylinder body is provided with a cooling water pipe, the top of the cooling water pipe extends out of the upper cylinder body and is provided with a threaded joint, the bottom of the cooling water pipe extends into the upper cylinder body and is provided with a water spray nozzle, the opening of the water spray nozzle is crescent-shaped, the water retaining cooling cylinder is high in installation sealing performance, and avoids pollution caused by oil-water mixture formed by splashing of cooling water; the assembly and disassembly are convenient, and the cooling effect is improved.)

1. The water retaining cooling cylinder for the cylinder sleeve piston of the slurry pump comprises an upper cylinder body (1) and a lower cylinder body (2), wherein the upper cylinder body (1) and the lower cylinder body (2) are combined to form a cylinder shape, and is characterized in that an upper framework (3) is fixed to the outer edge of the bottom of the upper cylinder body (1), a lower framework (4) is fixed to the outer edge of the top of the lower cylinder body (2), the upper framework (3) is connected with the lower framework (4) in a buckling manner, a spring buckle (5) is installed on the outer sides of the left ends of the upper framework (3) and the lower framework (4), a hinge (6) is installed on the outer sides of the right ends of the upper framework (3) and the lower framework (4), an annular boss (7) is formed by the inner side bulges of the upper cylinder body (1), the upper framework (3) and the lower framework (4), a cooling water pipe (8) is installed on the top of the upper cylinder body (1), and a threaded joint (9) is arranged at the top, the bottom of the cooling water pipe (8) extends into the upper barrel body (1) and is provided with a water spray nozzle (10), and an opening of the water spray nozzle (10) is in a crescent shape.

2. The water-retaining cooling cylinder for the mud pump cylinder sleeve piston as claimed in claim 1, wherein the upper cylinder body (1) is a polyurethane cylinder body, and the lower cylinder body (2) is a polyurethane cylinder body.

3. The water retaining cooling cylinder for the mud pump cylinder sleeve piston as claimed in claim 1, wherein the upper skeleton (3) is a stainless steel skeleton, and the lower skeleton (4) is a stainless steel skeleton.

4. The water retaining cooling cylinder for the mud pump cylinder sleeve piston as claimed in claim 1, wherein a bushing (11) is sleeved at the mounting position of the cooling water pipe (8) and the upper cylinder body (1), a fixing screw (12) is mounted on the outer side of the bushing (11), and the tail end of the fixing screw (12) is abutted against the cooling pipe (8).

5. The water retaining cooling cylinder for the mud pump cylinder sleeve piston as claimed in claim 1, wherein an arc-shaped sewage draining exit (13) is arranged at the bottom of the lower cylinder body (2).

6. The water retaining cooling cylinder for the mud pump cylinder sleeve piston as claimed in claim 1, wherein a circular interface (14) is arranged in the middle of the rear ends of the upper cylinder (1) and the lower cylinder (2).

7. The water-retaining cooling cylinder for the mud pump cylinder sleeve piston as claimed in any one of claims 1 to 6, wherein a first boss (15) is arranged at the top of the upper framework (3), a first groove (16) is arranged at the bottom of the upper framework (3), and the first boss (15) of the upper framework (3) is attached to the bottom of the upper cylinder body (1); lower skeleton (4) top is provided with second boss (17), second boss (17) of lower skeleton (4) and first recess (16) lock of last skeleton (3), skeleton (4) bottom is provided with second recess (18) down, second recess (18) and the laminating of lower barrel (2) top of lower skeleton (4).

Technical Field

The invention relates to the technical field of petroleum exploitation machinery, in particular to a water-retaining cooling cylinder for a cylinder sleeve piston of a petroleum slurry pump.

Background

The common mud pump is piston type or plunger type, and the power machine drives the crankshaft of the pump to rotate, and the crankshaft drives the piston to reciprocate in the cylinder sleeve through the crosshead. The purpose of pressure feeding and flushing liquid circulating is realized under the alternate action of the suction valve and the discharge valve.

The piston in the mud pump reciprocates in the cylinder sleeve to push the mud to be sucked and discharged, and the discharged mud forms high pressure (maximum 52 MPa). In the operation, mud forms great resistance to the piston, and the piston operates in a friction load manner in the cylinder sleeve to generate high temperature (150 ℃), so that the service life of the piston is seriously influenced.

The existing cylinder sleeve piston cooling component has the following defects: firstly, the cooling water splashes seriously and is mixed with lubricating oil at the adjacent part of the slurry pump to form an oil-water mixture, so that the environment and soil are polluted; secondly, the cooling effect is poor.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides the water retaining cooling cylinder for the cylinder sleeve piston of the slurry pump, which has strong installation tightness and avoids the pollution caused by oil-water mixture formed by splashing of cooling water; the assembly and disassembly are convenient, and the cooling effect is improved.

The invention is realized in such a way that the water retaining cooling cylinder for the mud pump cylinder sleeve piston comprises an upper cylinder body and a lower cylinder body, wherein the upper cylinder body and the lower cylinder body are combined into a cylinder shape, an upper framework is fixed on the outer edge of the bottom of the upper cylinder body, a lower framework is fixed on the outer edge of the top of the lower cylinder body, the upper framework is connected with the lower framework in a buckling manner, spring buckles are installed on the outer sides of the left ends of the upper framework and the lower framework, hinges are installed on the outer sides of the right ends of the upper framework and the lower framework, annular bosses are formed by protruding the inner sides of the upper cylinder body, the lower cylinder body, the upper framework and the lower framework, a cooling water pipe is installed at the top of the upper cylinder body, the top of the cooling water pipe extends out of the upper cylinder body and is provided with a threaded joint, the bottom of.

Preferably, the upper cylinder body is a polyurethane cylinder body, and the lower cylinder body is a polyurethane cylinder body.

Preferably, the upper framework is a stainless steel framework, and the lower framework is a stainless steel framework.

Preferably, a bushing is sleeved at the mounting position of the cooling water pipe and the upper cylinder, a fixing screw is mounted on the outer side of the bushing, and the tail end of the fixing screw is abutted to the cooling pipe.

Preferably, the bottom of the lower barrel is provided with an arc-shaped sewage draining outlet.

Preferably, the middle parts of the rear ends of the upper cylinder and the lower cylinder are provided with circular connectors.

Preferably, a first boss is arranged at the top of the upper framework, a first groove is arranged at the bottom of the upper framework, and the first boss of the upper framework is attached to the bottom of the upper cylinder body; the lower framework top is provided with a second boss, the second boss of the lower framework is buckled with the first groove of the upper framework, the bottom of the lower framework is provided with a second groove, and the second groove of the lower framework is attached to the top of the lower barrel.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that: the bottom of the cooling water pipe extends into the upper cylinder body, and the water spray nozzle is installed in the upper cylinder body, the opening of the water spray nozzle is in a crescent shape, the spraying range of cooling water is enlarged, the piston and the inner wall of the cylinder sleeve can be effectively cooled through the water spray nozzle, the friction resistance between the piston and the inner wall of the cylinder sleeve is reduced, and therefore the service lives of the piston and the cylinder sleeve are prolonged; the inner sides of the upper cylinder body, the lower cylinder body, the upper framework and the lower framework are protruded to form an annular boss, and the annular boss can be effectively buckled in an annular groove corresponding to the cylinder sleeve, so that the installation sealing performance is strong, and the cooling water is prevented from splashing to form an oil-water mixture to cause pollution; the spring hasp is installed in the last skeleton that sets up and the skeleton left end outside down, goes up the skeleton and installs the hinge in the skeleton right-hand member outside down, opens the spring hasp and makes and go up opening that can 180 through the hinge between skeleton and the lower skeleton, makes things convenient for the cover to establish more like this and assembles in the cylinder liner outside.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a three-dimensional structure view of a water-retaining cooling cylinder for a mud pump cylinder sleeve piston according to an embodiment of the invention.

Fig. 2 is a front view structural diagram of a water blocking cooling cylinder for a mud pump cylinder sleeve piston according to an embodiment of the invention.

Fig. 3 is a partially enlarged structural view at a in fig. 2.

Fig. 4 is a right side view structural diagram of a water blocking cooling cylinder for a mud pump cylinder liner piston according to an embodiment of the invention.

Fig. 5 is a top view structural diagram of a water blocking cooling cylinder for a mud pump cylinder liner piston according to an embodiment of the present invention.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1-5, the embodiment provides a water retaining cooling cylinder for a mud pump cylinder liner piston, which includes an upper cylinder body 1 and a lower cylinder body 2, wherein the upper cylinder body 1 and the lower cylinder body 2 are combined into a cylindrical shape, and the upper cylinder body 1 and the lower cylinder body 2 are combined and then used for being installed and positioned in a matching manner with an annular groove on the outer diameter of one end of a cylinder liner. Go up 1 bottom of barrel and be fixed with skeleton 3 outward along, 2 top of barrel are fixed with down skeleton 4 outward along being fixed with down, go up skeleton 3 and the effect of skeleton down and promote overall structure intensity. Go up skeleton 3 and be connected with lower skeleton 4 lock, the lock has the leakproofness in the junction. The spring buckles 5 are arranged on the outer sides of the left ends of the upper framework 3 and the lower framework 4, the hinges 6 are arranged on the outer sides of the right ends of the upper framework 3 and the lower framework 4, and the spring buckles 5 are opened to enable the upper barrel body 1 and the lower barrel body 2 to be in a 180-degree opening state through the hinges 6, so that the structure is convenient to install; the snap 5 is buckled to make the upper barrel 1 and the lower barrel 2 in a fixed state. Through go up barrel 1, lower barrel 2, go up skeleton 3 and the inboard arch formation annular boss 7 of lower skeleton 4, annular boss 7's effect carries out the adaptation with the annular groove on the cylinder liner one end external diameter, guarantees the leakproofness at installation position, prevents splashing of cooling water. Go up barrel 1 top and install condenser tube 8, condenser tube 8 top is extended to go up barrel 1 and is provided with threaded joint 9, and threaded joint 9 is used for being connected with the condenser tube way to leading-in cooling water. 8 bottoms of condenser tube extend to and install water spout 10 in the barrel 1, the opening of water spout 10 is crescent shape, and water spout 10 can spray water to cylinder liner inner wall and piston, guarantees that cooling water injection scope is big, has promoted the cooling effect.

The upper cylinder body 1 is a polyurethane cylinder body, and the lower cylinder body 2 is a polyurethane cylinder body. The upper framework 3 is a stainless steel framework, the lower framework 4 is a stainless steel framework, the polyurethane material of the upper barrel 1 is fixed with the upper framework 3 into a whole through a heating vulcanization process, and the fixing mode of the lower barrel 2 and the lower framework 3 also adopts the same mode.

The cooling water pipe 8 is equipped with bush 11 with the 1 installation department cover of last barrel (the fixed mode of bush 11 also adopts the heating vulcanization technology to fix), set screw 12 is installed to the bush 11 outside, set screw 12 end and 8 butts of cooling tube, and set screw 12 passes bush 11 and fixes cooling tube 8.

2 bottoms of barrel are provided with arc drain 13 down, and water spout 10 washes the residual mud on cylinder liner inner wall and the piston and forms sewage, discharges downwards from arc drain 13, conveniently collects sewage, prevents splashing of sewage.

The middle parts of the rear ends of the upper barrel body 1 and the lower barrel body 2 are provided with circular connectors 14, and the circular connectors 14 are used for installing other pipelines or directly using end covers for sealing.

A first boss 15 is arranged at the top of the upper framework 3, a first groove 16 is arranged at the bottom of the upper framework 3, the first boss 15 of the upper framework 3 is attached to the bottom of the upper barrel 1, the contact area of the upper framework 3 and the upper barrel 1 is increased, and the connection is firm; lower skeleton 4 top is provided with second boss 17, the second boss 17 of lower skeleton 4 and the 16 lock of first recess of last skeleton 3 for lower skeleton 4 and last skeleton 3 have the leakproofness after assembling. Lower skeleton 4 bottom is provided with second recess 18, the laminating of second recess 18 and lower barrel 2 top of lower skeleton 4 increases the area of contact of skeleton 4 and lower barrel 2 down for firm in connection.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that: the bottom of the cooling water pipe extends into the upper cylinder body, and the water spray nozzle is installed in the upper cylinder body, the opening of the water spray nozzle is in a crescent shape, the spraying range of cooling water is enlarged, the piston and the inner wall of the cylinder sleeve can be effectively cooled through the water spray nozzle, the friction resistance between the piston and the inner wall of the cylinder sleeve is reduced, and therefore the service lives of the piston and the cylinder sleeve are prolonged; the inner sides of the upper cylinder body, the lower cylinder body, the upper framework and the lower framework are protruded to form an annular boss, and the annular boss can be effectively buckled in an annular groove corresponding to the cylinder sleeve, so that the installation sealing performance is strong, and the cooling water is prevented from splashing to form an oil-water mixture to cause pollution; the spring hasp is installed in the last skeleton that sets up and the skeleton left end outside down, goes up the skeleton and installs the hinge in the skeleton right-hand member outside down, opens the spring hasp and makes and go up opening that can 180 through the hinge between skeleton and the lower skeleton, makes things convenient for the cover to establish more like this and assembles in the cylinder liner outside.

The foregoing is a preferred embodiment of the present invention, and it should be noted that it would be apparent to those skilled in the art that various modifications and enhancements can be made without departing from the principles of the invention, and such modifications and enhancements are also considered to be within the scope of the invention.