CN218816857U

CN218816857U - Reciprocating piston compressor packing chamber water channel flow dividing structure

Info

Publication number: CN218816857U
Application number: CN202222437618.7U
Authority: CN
Inventors: 何清萍; 董秋江
Original assignee: Shengang Wuxi Compressor Co ltd
Current assignee: Shengang Wuxi Compressor Co ltd
Priority date: 2022-09-15
Filing date: 2022-09-15
Publication date: 2023-04-07
Anticipated expiration: 2032-09-15

Abstract

The utility model relates to a compressor filler cooling technical field specifically is a reciprocating piston compressor packs cell water course reposition of redundant personnel structure, and it can simplify processing, reduces processing error rate and cost, simultaneously, the utility model also provides a processing method of packing cell, and it includes the filler mechanism that constitutes by the packing cell that piles up, its characterized in that, all the annular groove has openly been seted up to the packing cell, except deepest outside the packing cell, all the packing cell the step through-hole has been seted up to annular groove's same position, the step through-hole include anterior degree of depth with the unanimous big footpath hole of annular groove and the aperture hole at rear portion, install in the big footpath downthehole will the annular groove cuts off the hollow reposition of redundant personnel round pin that forms C shape runner, the center through-hole of reposition of redundant personnel round pin with the aperture switches on, the left side or the right side of step through-hole seted up with the cell through-hole of annular groove intercommunication, it is adjacent the cell through-hole left and right sides staggered arrangement of packing cell.

Description

Reciprocating piston compressor packing chamber water channel flow dividing structure

Technical Field

The utility model relates to a compressor filler cooling technical field specifically is a reciprocating piston compressor filler cell water course reposition of redundant personnel structure.

Background

The reciprocating piston compressor for technological use is a general machinery widely used in petrochemical industry, and drives the piston rod (piston body) through the crank link mechanism to compress and pressurize the gas in the fixed volume cylinder. The reciprocating motion of the piston rod can cause leakage of the compressed medium in the cylinder. In order to ensure sealing, a plastic packing ring with a self-sealing function is required to be arranged between the piston rod and the cylinder; the continuous reciprocating motion of the piston rod generates a large amount of friction heat which needs to be guided away in time, so that the plastic packing ring cannot deform and lose effectiveness. The general petrochemical industry compressor filler can take away heat through water-cooling and guarantee sealed effect, as shown in fig. 1, 1: piston rod, 2: filler, 3: piston body, 4: and a cylinder.

The cooling of the packing is generally carried out by introducing the cooling medium from the outside into the innermost part of the packing, then flowing it through each packing cell in a C-shaped spiral manner and then flowing it out. The packing component has a compact structure, the cooling water inlet and outlet holes, the cooling water C-shaped flow channel and the front and rear small chamber water flow through holes are all arranged on a circular ring, the front and rear small chamber water flow directions are opposite and respectively in the anticlockwise direction and the clockwise direction, the anticlockwise direction indicates that the water inlet and outlet end is seen, the water flow direction in the small chamber is anticlockwise, the clockwise direction indicates that the water inlet and outlet end is seen, and the water flow direction in the small chamber is clockwise, as shown in figure 2. Since the water flow passages cannot be communicated, each small chamber needs to be designed and processed differently according to the water flow direction, such as fig. 3, 4 and 5. The machined C-shaped channel needs to be milled by a special cutter, the angle needs to be marked and aligned during milling, if the angle is milled incorrectly, only scrapping can be performed, in fig. 3, the line X in the circle represents that water flows from inside to outside, and the line dot in the circle represents that water flows from outside to inside.

SUMMERY OF THE UTILITY MODEL

In order to solve the processing difficulty of current C shape passageway, make mistakes easily and cause the product to scrap, problem with high costs, the utility model provides a reciprocating piston compressor packs cell water course reposition of redundant personnel structure, and it can simplify processing, reduces processing error rate and cost.

The technical scheme is as follows: the utility model provides a reciprocating piston compressor packs cell water course reposition of redundant personnel structure, its includes the packing mechanism that constitutes by the packing cell that piles up, its characterized in that, all the annular groove has been seted up to the packing cell front, except deepest the packing cell is outer, all the packing cell the step through-hole has been seted up to annular groove's the same position, the step through-hole include the anterior degree of depth with the unanimous big footpath hole of annular groove and the aperture hole at rear portion, install in the big footpath hole with the annular groove cuts off the hollow reposition of redundant personnel round pin that forms C shape runner, the center through-hole of reposition of redundant personnel round pin with the aperture hole switches on, the left side or the right side of step through-hole seted up with the cell through-hole of annular groove intercommunication, it is adjacent stagger about the cell through-hole of packing cell arranges.

The flow distribution pin is further characterized in that the diameter of the small-diameter hole is d, the diameter of the central through hole of the flow distribution pin is d1, and d-d1 is more than 0 and less than or equal to 1mm;

an included angle formed by a connecting line from the center of the small chamber through hole to the center of the small filling chamber and a connecting line from the center of the step through hole to the center of the small filling chamber is 15-20 degrees.

Adopt the utility model discloses afterwards, every cell that packs openly all replaces to mill with cutting and processes rivers annular runner, and all annular groove structure are unanimous, have reduced the processing error rate, and the cost is reduced saves time and saves labour, and step through-hole and cell through-hole drilling are convenient, and the reposition of redundant personnel round pin is direct by standard round pin reform transform can, simple to operate has simplified processing greatly.

Drawings

FIG. 1 is a schematic view of a packing portion of a prior art piston compressor;

FIG. 2 is a schematic view showing the flow direction of cooling water at the packing;

FIG. 3 is a schematic view of the slotting and opening of a prior art packing cell;

FIG. 4 is a schematic view of the water flow holes of the front and rear cells of a conventional packed cell;

FIG. 5 is a schematic view of the water inlet holes in a conventional packed cell;

FIG. 6 is a schematic view of the opening and closing of the filling chamber according to the present invention;

FIG. 7 is a schematic view of the filling chamber of the present invention at the step through hole;

fig. 8 is a schematic view of a diverter pin.

Detailed Description

As shown in fig. 6 to 8, a reciprocating piston compressor packing chamber water channel flow dividing structure includes a packing mechanism composed of stacked packing chambers 5, all the packing chambers 5 are provided with an annular groove 6 on the front side, except for the deepest packing chamber 5, step through holes 7 are provided at the same positions of the annular grooves 6 of the other packing chambers 5, each step through hole 7 includes a large-diameter hole with the depth of the front portion identical to that of the annular groove 6 and a small-diameter hole at the rear portion, a hollow flow dividing pin 8 for partitioning the annular groove 6 to form a C-shaped flow passage is installed in the large-diameter hole, a central through hole of the flow dividing pin 8 is communicated with the small-diameter hole, a chamber through hole 9 communicated with the annular groove 6 is provided on the left side or the right side of the step through hole 7, and the chamber through holes 9 of the adjacent packing chambers 5 are arranged in a left-right staggered manner, that is when the previous packing 5 is the left-side chamber through hole 9 of the step through hole 7, the next chamber through hole 9 is provided on the right side. In fig. 3, the circles with a x indicate the water flow from the inside to the outside, and the circles with a dot indicate the water flow from the outside to the inside.

And d-d1 is more than 0 and less than or equal to 1mm if the diameter of the small-diameter hole is d and the diameter of the central through hole of the shunt pin is d1, so that the water flow can smoothly enter the bottom of the direct filling material.

An included angle alpha formed by a connecting line from the center of the small chamber through hole 9 to the center of the small filling chamber 5 and a connecting line from the center of the step through hole 7 to the center of the small filling chamber 5 is 15-20 degrees, the small angle is possibly close to the step through hole 7 to affect processing, and the large angle reduces the area of water flowing through the annular groove 6 to affect cooling effect.

The processing method of the small stuffing chamber comprises the following steps:

(1) Processing an annular groove on the front surface of each small packing chamber by utilizing a turning processing mode;

(2) Drilling step through holes at the same positions of the annular grooves of the other small packing chambers except the small packing chambers arranged at the deepest part, wherein the depth of the large-diameter hole at the front part of the step through hole is consistent with that of the annular groove;

(3) Drilling small chamber through holes communicated with the annular groove on the left side or the right side of the step through hole, and staggering the small chamber through holes of the adjacent filling small chambers from left to right;

(4) And knocking a hollow shunt pin into the front large-diameter hole to separate the annular groove to form a C-shaped flow channel, modifying the shunt pin by using a GB/T119.1 standard pin, machining a central through hole, and cutting the shunt pin to a required length.

The cooling water is intake and passes through the step through holes of all the small filling chambers 5 and reaches the annular groove 6 of the last small filling chamber 5, because of the existence of the shunt pin 8, the cooling water is intake and can not directly enter the annular grooves 6 of the other small filling chambers 5, but the cooling water enters the annular groove 6 from the annular groove 6 of the last small filling chamber 5 through the small chamber through hole 9 of the previous small filling chamber 5, because of the blocking of the shunt pin 8, the cooling water passes through the C-shaped flow passage to the other side, and then enters the annular groove 6 of the previous small filling chamber 5 from the small chamber through hole 9 of the side, the operation is repeated, the cooling water continuously flows anticlockwise and clockwise to reach the annular groove 6 of the first small filling chamber 5, the cooling of all the fillers is realized, the annular groove 6 on the first small filling chamber 5 is communicated with the cooling water outlet, and the cooling water can smoothly flow out.

Claims

1. The utility model provides a reciprocating piston compressor packs cell water course reposition of redundant personnel structure, its includes the packing mechanism that constitutes by the packing cell that piles up, its characterized in that, all the annular groove has been seted up to the packing cell front, except deepest the packing cell is outer, all the packing cell the step through-hole has been seted up to annular groove's the same position, the step through-hole include the anterior degree of depth with the unanimous big footpath hole of annular groove and the aperture hole at rear portion, install in the big footpath hole with the annular groove cuts off the hollow reposition of redundant personnel round pin that forms C shape runner, the center through-hole of reposition of redundant personnel round pin with the aperture hole switches on, the left side or the right side of step through-hole seted up with the cell through-hole of annular groove intercommunication, it is adjacent stagger about the cell through-hole of packing cell arranges.

2. The reciprocating piston compressor stuffing chamber water channel flow-dividing structure as claimed in claim 1, wherein if the diameter of said small diameter hole is d, and the diameter of the central through hole of said flow-dividing pin is d1, then 0 < d-d1 ≤ 1mm.

3. The reciprocating piston compressor packing chamber water channel flow splitting structure as claimed in claim 1, wherein a line from a center of said chamber through hole to a center of said packing chamber forms an angle of 15-20 ° with a line from a center of said stepped through hole to a center of said packing chamber.