阅读说明：本技术 一种适用于高压水柱塞除鳞泵的柱塞和密封的冷却结构 (Plunger and sealed cooling structure suitable for high-pressure water plunger descaling pump ) 是由 邵立新 于 2021-10-22 设计创作，主要内容包括：一种适用于高压水柱塞除鳞泵的柱塞和密封的冷却结构,在高压水除鳞泵的柱塞中间部位采用特殊的结构设计,从外部引入冷却水,在柱塞的中间段形成环柱塞表面的冷却水环带,柱塞做高速直线运动,柱塞和密封高速摩擦产生的热量被冷却水迅速带走,撒热的速度远大于产生热的速度,热量无法有效的集聚,使得温度控制在一定的范围内不会升高,避免了高温对柱塞的加速磨损,提高了柱塞的使用寿命。在柱塞得到冷却的同时,通过对周围接触部件的特殊导水通道设计,使得密封也得到了间接的冷却,密封使用寿命得到了提高,整体高压水除鳞泵的寿命提高,备件和维护成本大幅度降低。(The utility model provides a cooling structure suitable for plunger and sealed of high pressure water plunger descaling pump, adopt special structural design at the plunger middle part of high pressure water descaling pump, introduce the cooling water from the outside, form the cooling water clitellum on ring plunger surface at the interlude of plunger, high-speed rectilinear motion is done to the plunger, the heat that plunger and sealed high-speed friction produced is taken away rapidly by the cooling water, the speed of spilling heat is far more than the speed that produces themogenesis, the heat can't effectually gather, make temperature control can not rise at certain within range, high temperature to the accelerated wear of plunger has been avoided, the service life of plunger has been improved. When the plunger is cooled, the special water guide channel design of the surrounding contact parts enables the seal to be indirectly cooled, the service life of the seal is prolonged, the service life of the integral high-pressure water descaling pump is prolonged, and spare parts and maintenance cost are greatly reduced.)

1. The plunger and sealed cooling structure suitable for the high-pressure water plunger descaling pump is characterized by comprising a cooling chamber cavity formed by a high-pressure water plunger (1), a pressurizing cylinder body (2), a plunger cylinder body (3), a pressurizing cover (4) and a plunger body pressing cover (5); the cooling water channel system is formed by a water inlet (6), a pressure cylinder bottom ring (7), a water guide spacer ring (9), a packing ring (9) and a water outlet, and realizes cooling of a water column plug (1), a first backpressure sealing group (19) and a second backpressure sealing group (20).

2. The cooling structure according to claim 1, wherein the cooling water hose is located in the middle of the plunger, the cooling water flows into a groove in the outer circular surface of the spacer ring along a radial hole of the water guide spacer ring (7), the static seal (14) is cooled through heat conduction, the packing ring (9) on the left side of the ring plunger hose cools the first backpressure seal group (19) through heat conduction, the booster cylinder bottom ring (6) on the right side cools the second backpressure seal group (20) through heat conduction, the cooled hot water is collected at the water outlet and is discharged into the pump body from the water outlet and then is discharged into a drainage ditch of the pump station through the water outlet of the pump body, and the cooling of the plunger and the plunger seal is completed.

Technical Field

The invention relates to the field of high-pressure water plunger pumps, in particular to a plunger and a sealed cooling structure suitable for a high-pressure water plunger descaling pump.

Background

The high-pressure water plunger pump is widely used in the field of metal hot forming processing in the steel industry and is used for removing iron oxide scales formed on the surface of heated steel raw materials. The plunger does high-speed reciprocating linear motion in the cylinder body and rubs with a sealing structure wrapping the plunger at high speed to generate high temperature, the high temperature accelerates the abrasion of the surface of the plunger and a sealing component, the abrasion of the sealing and the surface of the plunger can be caused in a short time, the high pressure can not be maintained, and the normal use of the high-pressure water plunger descaling pump is seriously influenced. The invention discloses a plunger and a sealed water cooling structure of a high-pressure water plunger descaling pump, which are characterized in that pressurized water on the suction side of the pump is introduced into the middle section of a plunger cylinder, and through the special water guide structure design of a packing ring and a water guide spacer ring, cooling water surrounds the surface of the plunger to cool the plunger and a peripheral structure in the reciprocating motion of the plunger, so that the sealing and the surface abrasion speed of the plunger are reduced, and the service lives of the plunger and the sealing are prolonged.

The problems in the prior art are as follows: the plunger of the high-pressure water descaling pump is a supercharging device which compresses sucked low-pressure water at high speed to form high-pressure water jet and discharges the high-pressure water jet to a high-pressure pipeline through a liquid discharge valve. The plunger piston does high-speed reciprocating linear motion in the cylinder body and rubs with a sealing structure wrapping the plunger piston at high speed to generate high temperature, the abrasion of the surface of the plunger piston and the sealing component is accelerated by the high temperature, water leakage and pressure relief can be developed after long-time high-temperature operation, the output pressure can be greatly reduced, and the normal use of the high-pressure water plunger descaling pump is seriously influenced.

Traditional plunger does not have water cooling structure, and the high fever that produces when the plunger moves at a high speed can't be taken away in the short time, and the high temperature that the high fever gathers the production has accelerated the wearing and tearing on plunger surface, and long-time wearing and tearing cause the sealed decompression that leaks of plunger, must shut down to overhaul and change plunger and sealed, and use cost is high and has caused production interrupt.

Disclosure of Invention

Adopt special structural design at the plunger middle part of high pressure water descaling pump, introduce the cooling water from the outside, form the cooling water clitellum on ring plunger surface at the interlude of plunger, the high-speed linear motion is done to the plunger, the heat that plunger and sealed high-speed friction produced is taken away rapidly by the cooling water, it is far greater than the speed that produces heat to spill hot speed, the unable effectual gathering of heat for temperature control can not rise at certain within range, avoided the accelerated wear of high temperature to the plunger, the life of plunger has been improved.

When the plunger is cooled, the special water guide channel design of the surrounding contact parts enables the seal to be indirectly cooled, the service life of the seal is prolonged, the service life of the integral high-pressure water descaling pump is prolonged, and spare parts and maintenance cost are greatly reduced.

In order to achieve the purpose, the invention provides the following technical scheme:

a plunger and sealed cooling structure suitable for a high-pressure water plunger descaling pump comprises a cooling chamber cavity formed by a high-pressure water plunger, a pressurizing cylinder body, a plunger cylinder body, a pressurizing cover and a plunger body pressing cover; the cooling water channel system is formed by a water inlet, a pressurizing cylinder bottom ring, a water guide spacer ring packing ring and a water outlet, and realizes cooling of a water column plug, a first backpressure sealing group and a second backpressure sealing group.

The cooling water hose is located in the middle of the plunger, cooling water flows into a groove in the outer circular surface of the spacer ring along a radial hole of the water guide spacer ring, static seal is cooled through heat conduction, the packing ring is cooled on the left side of the ring plunger hose, a first backpressure sealing group is cooled through heat conduction, a second backpressure sealing group is cooled on the right side of the ring plunger hose, cooled hot water is collected to a water outlet, the hot water is discharged into the pump body from the water outlet and then is discharged into a drainage ditch of a pump station through a water outlet of the pump body, and cooling of the plunger and the plunger seal is completed.

The introduced cooling water fills a ring belt gap formed between the bottom ring of the pressure cylinder and the plunger slowly through the flow guide holes to cool the plunger moving at high speed, the outer circular surface and the inner circular surface of the bottom ring of the pressure cylinder are provided with grooves, the middle parts of the bottom ring of the pressure cylinder are communicated through the flow guide holes, and the cooling water is introduced to the surface of the plunger to cool the plunger.

The water inlet introduces external pressurized cooling water into the plunger cylinder, the pressurizing cylinder body is provided with holes along the radius direction, external cooling water is introduced, and the top thread design is convenient for connecting a cooling water pipeline.

The axial clearance between the bottom ring of the pressure cylinder and the plunger surface is convenient for cooling water to be filled and contacted with the whole circumference of the plunger, the cooling heat dissipation area is increased, the bottom ring of the pressure cylinder is provided with a groove on the outer part and a groove on the inner part, the outer groove and the inner groove are communicated through 4 radial holes, the cooling water belt on the surface of the annular plunger formed by the inner groove and the surface of the plunger is immediately filled after the external water enters, and the heat generated by the high-speed movement of the plunger is taken away.

The water guide spacer ring enlarges the cooling area and range of cooling water, the water guide spacer ring is internally grooved and externally grooved, thick water guide holes are radially formed, cooling water enters the annular plunger piston cooling water belt and then further extends leftwards, the cooling area of the annular plunger piston is enlarged, the cooling water is guided to the outer side through the thick water guide holes, and the sealing and other structures around the plunger piston are also cooled through conduction heat dissipation

The cooled hot water is discharged out of the plunger pump through the water outlet, the sectional area of the drainage aperture is increased, the drainage speed is increased, the hot water is prevented from gathering, the heat is taken away in time, and the cooling effect is guaranteed.

Compared with the background art, the application proposes what technical advantages are: the water cooling structure of the plunger is additionally designed in the plunger of the high-pressure water plunger descaling pump, so that heat generated by high-speed movement of the plunger is taken away in time, the temperature of the plunger and surrounding original parts is effectively reduced, accelerated wear caused by high temperature is avoided, the service lives of the plunger and a seal are prolonged, the pressure maintaining capacity of the high-pressure water pump is improved, spare part consumption is reduced, and maintenance work is reduced.

Drawings

FIG. 1 is an overall block diagram of the present invention;

FIG. 2 is a cross-sectional structural view of the present invention;

FIG. 3 is a partial enlarged view of the present invention

Detailed Description

A cooling structure suitable for a plunger and a seal of a high-pressure water plunger descaling pump comprises a cooling chamber cavity formed by a high-pressure water plunger 1, a pressurizing cylinder 2, a plunger cylinder 3, a pressurizing cover 4 and a plunger body gland 5; the cooling water channel system is formed by a water inlet 6, a pressure cylinder bottom ring 7, a water guide spacer ring 9, a packing ring 9 and a water outlet, and realizes cooling of a water column plug 1, a first backpressure sealing group 19 and a second backpressure sealing group 20.

The cooling water belt is located in the middle of the plunger, cooling water flows into a groove in the outer circular surface of the spacer ring along a radial hole of the water guide spacer ring 7, the static seal 14 is cooled through heat conduction, the packing ring 9 is cooled on the left side of the ring plunger water belt, the backpressure seal group I19 is cooled through heat conduction, the pressure cylinder bottom ring 6 is cooled on the right side of the ring plunger water belt, the backpressure seal group II 20 is cooled through heat conduction, cooled hot water is collected to a water outlet, is discharged into the pump body from the water outlet and is discharged into a drainage ditch of a pump station through a water outlet of the pump body, and cooling of the plunger and the plunger seal is completed.