CN209743124U

CN209743124U - Hydrogenation compressor

Info

Publication number: CN209743124U
Application number: CN201822044687.5U
Authority: CN
Inventors: 吴茜; 李毅; 宋丽萍; 郑智超; 叶祥; 李华
Original assignee: JIANGSU TAIER NEW MATERIAL TECHNOLOGY Co Ltd
Current assignee: JIANGSU TAIER NEW MATERIAL TECHNOLOGY Co Ltd
Priority date: 2018-12-06
Filing date: 2018-12-06
Publication date: 2019-12-06
Anticipated expiration: 2028-12-06

Abstract

The utility model relates to a hydrogenation compressor, it includes the compressor body, is provided with air inlet and gas outlet on the roof of this compressor body. The air inlet is provided with an inlet one-way valve which is directly communicated with the air inlet pipe. An outlet one-way valve is arranged at the air outlet. And a negative pressure generating device is arranged right below the air inlet and the air outlet and comprises a diaphragm, a driving rod connected with the diaphragm and a power device for driving the driving rod to do up-and-down reciprocating motion. The diaphragm is matched with the shape of the inner cavity of the compressor body and moves up and down in a translation mode along the side wall of the inner cavity of the compressor body. A liquid filter is arranged in the air inlet pipe, and a liquid discharge pipe is arranged on one side of the air inlet pipe and at the position flush with the upper end surface of the liquid filter. Therefore, the working gas is filtered in advance at the air inlet, the cleanness of the working gas is ensured, the smoothness of air inlet is effectively ensured, and the hydrogenation compressor can stably and reliably operate.

Description

Hydrogenation compressor

Technical Field

The utility model belongs to the technical field of the compressor technique and specifically relates to a hydrogenation compressor is related to.

Background

At present, in the middle and small-sized hydrogenation process, gas is pressurized by a hydrogenation compressor, so that oil products are subjected to hydrogenation reaction under the conditions of high temperature, high pressure and catalyst to generate other various products. The gas compressed by the compressor is mainly used by circulating hydrogen, and various liquids are inevitably contained in the circulating hydrogen. When the liquid invades the inlet of the compressor, the air inlet caliber can be reduced, so that the air inlet process is not smooth, the compressor can not normally operate in serious cases, and meanwhile, the liquid is often attached to the sealing part of the inlet of the compressor, the inlet of the compressor is not sealed well, and the compressor can not stably work. In addition, the circulating hydrogen usually contains corrosive gas, especially under high pressure environment, which inevitably causes cavitation and corrosion to the sealing ring of the inlet check valve and the sealing ring of the outlet check valve, so that the compressor cannot work normally for a long time. Thus, a skilled person is urgently needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a can ensure that working gas is clean, and the admission process is unobstructed, and working property is stable, reliable hydrogenation compressor.

In order to solve the technical problem, the utility model relates to a hydrogenation compressor, it includes the compressor body, is provided with air inlet and gas outlet on the roof of this compressor body. The air inlet is provided with an inlet one-way valve which is directly communicated with the air inlet pipe. An outlet one-way valve is arranged at the air outlet. And a negative pressure generating device is arranged right below the air inlet and the air outlet and comprises a diaphragm, a driving rod connected with the diaphragm and a power device for driving the driving rod to do up-and-down reciprocating motion. The diaphragm is matched with the shape of the inner cavity of the compressor body and moves up and down in a translation mode along the side wall of the inner cavity of the compressor body. A liquid filter is arranged in the air inlet pipe, and a liquid discharge pipe is arranged on one side of the air inlet pipe and at the position flush with the upper end surface of the liquid filter.

Furthermore, the inlet check valve comprises an inlet check valve body, an inlet valve body arranged in the inner cavity of the inlet check valve body and a first spring which enables the inlet valve body to do self-return movement. The inlet valve body is composed of an inlet valve rod and a plate-shaped inlet valve core arranged at the lower end part of the inlet valve rod. An inlet sealing ring is arranged on the lower plane of the bottom wall of the inlet one-way valve body and at the position corresponding to the inlet valve core.

Furthermore, a first external thread is arranged on the outer wall of the inlet one-way valve body, and correspondingly, a first internal thread matched with the first external thread is arranged on the side wall of the air inlet.

Furthermore, the outlet one-way valve comprises an outlet one-way valve body, an outlet valve core arranged in the inner cavity of the outlet one-way valve body and a second spring which enables the outlet valve core to do self-return movement. An outlet sealing ring is arranged on the upper plane of the bottom wall of the outlet one-way valve body and at the position corresponding to the outlet valve core.

Furthermore, a second external thread is arranged on the outer wall of the outlet one-way valve body, and correspondingly, a second internal thread matched with the second external thread is arranged on the side wall of the air outlet.

Furthermore, the power device comprises a rolling body which is arranged at the lower end of the driving rod and can rotate freely, a third spring which is sleeved on the driving rod and always enables the driving rod to have downward restoring force, and a swinging rod which is arranged under the driving rod. The oscillating lever is provided with a functional surface that always makes rolling contact with the rolling elements.

Further, the cross section of the functional surface is in a zigzag shape. The power device also comprises a fine adjustment mechanism which enables the driving swing rod to perform position translation adjustment along the left-right direction. The fine adjustment mechanism comprises a screw rod inserted into the side wall of the compressor body, a screw rod driving the swinging rod to horizontally move along the left-right direction, and an adjusting handle fixed at the outer end part of the screw rod.

Furthermore, a dividing line for determining the relative translation amount of the swinging rod is arranged along the circumferential direction of the adjusting handle.

Adopt above-mentioned technical scheme's hydrogenation compressor, filter working gas in advance in air inlet department, detach liquid wherein, ensure working gas's cleanliness factor, ensure the gas inlet bore of compressor entry to guaranteed the unobstructed nature of admitting air effectively, makeed this hydrogenation compressor to operate steadily, reliably.

Drawings

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

Fig. 1 is an assembly schematic diagram of the middle hydrogenation compressor of the present invention.

FIG. 2 is a schematic view of a partial structure of a compressor body in a hydrogen compressor according to the present invention

Fig. 3 is a schematic structural diagram of an inlet check valve in the hydrogenation compressor of the present invention.

Fig. 4 is a schematic structural diagram of the outlet check valve in the hydrogenation compressor of the present invention.

1-a compressor body; 11-an air inlet; 111-a first internal thread; 12-air outlet; 121-a second internal thread; 2-inlet check valve; 21-inlet check valve body; 211 — a first external thread; 22-inlet valve body; 221-inlet valve stem; 222-inlet spool; 223-inlet sealing ring; 23-a first spring; 3, an air inlet pipe; 4-outlet check valve; 41-outlet check valve body; 411-second external thread; 42-outlet spool; 43-an outlet sealing ring; 44-a second spring; 5-a negative pressure generating device; 51-a separator; 52-a drive rod; 53-a power plant; 531-rolling elements; 532-a third spring; 533-oscillating lever; 5331-functional noodles; 534-fine adjustment mechanism; 5341-a screw; 5342-adjusting handle; 53421-graduation line; 535-eccentric wheel; 536-screw gear mechanism; 6-liquid filter; 7-a liquid discharge pipe; 71-a liquid storage cavity; 8-a stop valve.

Detailed Description

In the description of the present invention, it should be understood that the terms "left", "right", "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

The present invention will be described in detail with reference to the accompanying drawings, wherein fig. 1 shows an assembly schematic diagram of a hydrogenation compressor of the present invention, which is provided with a compressor body 1 having a cavity structure, and an air inlet 11 and an air outlet 12 directly connected to an air inlet pipe 3 are provided on a top wall of the compressor body 1. A negative pressure generating device 5 is provided directly below the gas inlet 11 and the gas outlet 12, thereby generating the operating pressure of the hydrogenation compressor. The negative pressure generating device 5 comprises a diaphragm 51, a driving rod 52, a power device 53 and the like, wherein the diaphragm 51 is matched with the shape of the inner cavity of the compressor body 1, and the driving rod 52 is directly connected with the diaphragm 51 and reciprocates up and down under the driving of the power device 5. In order to make the gas inlet and outlet processes of the hydrogenation compressor alternately performed, the gas inlet 11 and the gas outlet 12 are respectively provided with an inlet check valve 2 and an outlet check valve 4 which are alternately opened and closed under the action of the working pressure produced by the negative pressure generating device 5.

Inevitably can appear impurity such as liquid in the circulating hydrogen, can influence the unobstructed nature that air inlet 11 goes out to admit air, in order to ensure working gas's cleanliness factor, can be provided with liquid filter 6 in intake pipe 3 to in time discharge liquid through set up in one side of intake pipe 3, with the fluid-discharge tube 7 that liquid filter 6 up end flushed the position mutually and set up.

Further, in order to realize the regular discharge of the liquid and to improve the convenience of liquid collection, a liquid storage chamber 71 may be provided in the liquid discharge pipe 7, and a shutoff valve 8 may be provided downstream of the liquid storage chamber 71. The reservoir 71 is transparent and is a compressible elastomer.

In order to improve the working performance of the hydrogenation compressor and ensure the operation stability of the hydrogenation compressor, the inlet check valve 2 and the outlet check valve 4 can be specifically optimized in structure as follows: 1) the inlet check valve 2 mainly comprises an inlet check valve body 21, an inlet valve body 22 arranged in the inner cavity of the inlet check valve body 21, a first spring 23 enabling the inlet valve body 22 to do self-return movement, and the like. The inlet valve body 22 is composed of an inlet stem 221 and a plate-shaped inlet valve body 222 provided at the lower end of the inlet stem 221. An inlet seal ring 223 (shown in fig. 3) is disposed on the lower plane of the bottom wall of the inlet check valve body 21 at a position corresponding to the inlet valve core 222. 2) The outlet check valve 4 is mainly composed of an outlet check valve body 41, an outlet spool 42 provided in an inner cavity of the outlet check valve body 41, and a second spring 44 for causing the outlet spool 42 to perform a self-return motion. An outlet sealing ring 43 (shown in fig. 4) is provided on the upper plane of the bottom wall of the outlet check valve body 41 at a position corresponding to the outlet spool 42. Through adopting above-mentioned scheme to set up import check valve 2 and export check valve 4 respectively, improved the stationarity of action, and import sealing ring 223 and export sealing ring 43's sealing method sets up the change by traditional circumference to the axial setting, even import sealing ring 223 and export sealing ring 43 take place cavitation erosion and corrosion phenomena at long-time operation in-process, both still can keep self leakproofness under the effect of import case 222 and export case 42 pressure respectively.

In order to improve the convenience of disassembling and assembling the inlet check valve 2 and the outlet check valve 4, the following optimization can be respectively carried out: the inlet check valve 2 and the air inlet 11 are connected in a threaded manner, that is, a first external thread 211 is arranged on the outer wall of the inlet check valve body 21, and correspondingly, a first internal thread 111 matched with the first external thread 211 is arranged on the side wall of the air inlet 11; the outlet check valve 4 is in a threaded connection with the air outlet 12, that is, a second external thread 411 is provided on the outer wall of the outlet check valve body 41, and correspondingly, a second internal thread 121 (shown in fig. 2) adapted to the second external thread 411 is provided on the side wall of the air outlet 12. In order to improve the sealing performance of the inlet check valve 4 and the side wall of the air inlet 11, the first external thread 211 and the first internal thread 111 both adopt 55-degree sealing pipe threads. Similarly, in order to improve the sealing performance between the outlet check valve 4 and the sidewall of the air outlet 12, the second external thread 411 and the second internal thread 121 both adopt 55 ° sealing pipe threads.

In order to better realize the driving process of the driving rod 52 by the power device 53, the power device 53 may be further configured in a specific structure that the power device 53 is composed of a rolling element 531, a third spring 532, a swinging rod 533, and the like, wherein the rolling element 531 is rotatably disposed at the lower end portion of the driving rod 52, and can freely roll along a functional surface 5331 (upper end surface) of the swinging rod 533; the third spring 532 is sleeved on the driving rod 52 and always enables the driving rod 52 to have a downward restoring force; the swing lever 533 is provided directly below the drive lever 52. Through adopting above-mentioned technical scheme to set up, simplified power device 53's structural style greatly, greatly reduced the dead weight of hydrogenation compressor, and ensured the stability and the reliability of hydrogenation compressor work process. The upward and downward swinging of the swinging lever 533 is driven by the eccentric 534, and the eccentric motion of the eccentric 535 is driven by the screw gear mechanism 536.

In order to adjust the reciprocating amplitude of the driving rod 52, a fine adjustment mechanism 534 may be provided in association with the power device 53. Specifically, the method comprises the following steps: the cross section of the functional surface 5331 needs to be designed to be a broken line shape, and the inclination and the number of segments of each component broken line can be set according to actual needs. The fine adjustment mechanism 534 includes a screw 5341 inserted through the side wall of the compressor body 1 to drive the swing rod 533 to translate in the left-right direction, and an adjustment handle 5342 fixed to the outer end of the screw 5341. The swinging rod 533 is hinged to the screw 5341 via a hinge shaft. When the reciprocating motion amplitude of the driving rod 52 needs to be adjusted according to the actual process rule, the adjusting handle 5342 can be manually rotated, so that the driving swing rod 533 can be adjusted in position translation along the left-right direction under the action of the fine adjustment mechanism 534, and the rolling body 531 is adapted to the folding lines with different inclinations.

Finally, an index line 53421 that determines the relative translational amount of the swing lever 533 can be provided along the circumferential direction of the adjustment handle 5342, so that the amount of the screwing-in and screwing-out displacement of the screw 5341 can be easily estimated from the angle of the rotation of the adjustment handle 5342 and the pitch of the screw 5341. In order to facilitate the application of force by the operator, anti-slip protrusions or anti-slip grooves may be disposed in parallel in the circumferential direction of the adjustment handle 5342.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A hydrogenation compressor comprises a compressor body, wherein the top wall of the compressor body is provided with an air inlet and an air outlet; the air inlet is provided with an inlet one-way valve which is directly communicated with the air inlet pipe; an outlet one-way valve is arranged at the air outlet; a negative pressure generating device is arranged right below the air inlet and the air outlet; the negative pressure generating device comprises a diaphragm, a driving rod connected with the diaphragm and a power device for driving the driving rod to reciprocate up and down; the diaphragm is matched with the shape of the inner cavity of the compressor body and moves up and down in a translational mode along the side wall of the inner cavity of the compressor body.

2. The hydroprocessing compressor of claim 1, wherein the inlet check valve comprises an inlet check valve body, an inlet valve body disposed in an inner cavity of the inlet check valve body, and a first spring for self-return movement of the inlet valve body; the inlet valve body consists of an inlet valve rod and a plate-shaped inlet valve core arranged at the lower end part of the inlet valve rod; and an inlet sealing ring is arranged on the lower plane of the bottom wall of the inlet one-way valve body and at a position corresponding to the inlet valve core.

3. The hydroprocessing compressor of claim 2, wherein a first external thread is provided on the outer wall of the inlet check valve body, and correspondingly, a first internal thread adapted to the first external thread is provided on the inlet sidewall.

4. The hydroprocessing compressor of claim 1, wherein the outlet check valve comprises an outlet check valve body, an outlet valve spool disposed in an inner cavity of the outlet check valve body, and a second spring for allowing the outlet valve spool to perform a self-restoring motion; and an outlet sealing ring is arranged on the upper plane of the bottom wall of the outlet one-way valve body and at a position corresponding to the outlet valve core.

5. The hydroprocessing compressor of claim 4, wherein a second external thread is provided on the outer wall of the outlet check valve body, and correspondingly, a second internal thread adapted to the second external thread is provided on the outlet side wall.

6. The hydrogenation compressor as claimed in claim 1, wherein the power unit includes a rolling body disposed at a lower end of the driving rod and capable of freely rotating, a third spring sleeved on the driving rod and always allowing the driving rod to have a downward restoring force, and a swing lever disposed right below the driving rod; the rocking lever is provided with a functional surface that always makes rolling contact with the rolling element.

7. The hydroprocessing compressor of claim 6, wherein the functional surface has a cross-section in the shape of a dogleg; the power device also comprises a fine adjustment mechanism for driving the swinging rod to perform position translation adjustment along the left-right direction; the fine adjustment mechanism comprises a screw rod which is inserted into the side wall of the compressor body in a penetrating mode, drives the swinging rod to translate along the left-right direction, and an adjusting handle fixed to the outer end portion of the screw rod.

8. The hydroprocessing compressor of claim 7, wherein a reference line is provided along a circumferential direction of the adjustment handle to determine the relative translation of the sway bar.