CN112503196B

CN112503196B - Flow-adjustable pipeline structure and degassing chamber

Info

Publication number: CN112503196B
Application number: CN202011242189.7A
Authority: CN
Inventors: 刘志同; 万嘉明; 覃柳金; 石侠红; 殷生岱
Original assignee: Dongfeng Motor Corp
Current assignee: Dongfeng Motor Corp
Priority date: 2020-11-09
Filing date: 2020-11-09
Publication date: 2021-11-30
Anticipated expiration: 2040-11-09
Also published as: CN112503196A

Abstract

The invention discloses a flow-adjustable pipeline structure and a degassing chamber, which comprise a sliding block, a main runner, an auxiliary runner, a baffle and an elastic part, wherein the sliding block is movably arranged in a pipe body; the main runner axially penetrates through two ends of the sliding block, an inclined plane is arranged in the main runner, and the inclined plane inclines towards the inlet of the main runner; the auxiliary flow channel axially penetrates through two ends of the sliding block, and the flow direction of the auxiliary flow channel is consistent with that of the main flow channel; the baffle is arranged on the inner wall of the pipe body, and a through hole communicated with the main runner is formed in the baffle; the elastic piece is connected with the baffle and the sliding block, and when the elastic piece is compressed, the baffle seals the outlet of the auxiliary flow passage. The invention does not need a valve body, and realizes the flow control in the pipe body by utilizing the flow speed change of the liquid in the pipe body.

Description

Flow-adjustable pipeline structure and degassing chamber

Technical Field

The invention relates to the technical field of pipeline flow limitation, in particular to a pipeline structure with adjustable flow and a degassing chamber.

Background

Among the prior art, carry out flow control to the pipeline of carrying liquid and adopt the installation valve body to control on the pipeline more, hand switch's valve body use scene is limited, can't be applicable to the automation, and the installation solenoid valve can adapt to the automation, and the solenoid valve needs each control module of cooperation in the use, increases the complexity of operation undoubtedly to increase the solenoid valve on the pipeline, and the cost is higher.

Disclosure of Invention

The invention aims to provide a flow-adjustable pipeline structure and a degassing chamber which can automatically adjust depending on the flow velocity of liquid, so as to solve the problems in the background technology.

In order to achieve the above purpose, the technical scheme of the invention is as follows:

a flow adjustable pipeline structure is arranged in a pipe body and comprises:

the sliding block is movably arranged in the tube body;

the main runner axially penetrates through two ends of the sliding block, an inclined plane is arranged in the main runner, and the inclined plane inclines towards the inlet of the main runner;

the auxiliary flow channel axially penetrates through two ends of the sliding block, and the flow direction of the auxiliary flow channel is consistent with that of the main flow channel;

the baffle is arranged on the inner wall of the pipe body, and a through hole communicated with the main runner is formed in the baffle;

and the elastic piece is connected with the baffle and the sliding block, and when the elastic piece is compressed, the baffle seals the outlet of the auxiliary flow passage.

Preferably, the slider is the cylinder type, the slider outer wall is kept away from the sealing ring is installed to one side of baffle, the sealing ring outer wall with the pipe body inner wall pastes, makes liquid only accessible the sprue with the auxiliary channel passes through the slider.

Preferably, the main runner is frustum-shaped, the axis of the main runner and the axis of the slide block are located on the same straight line, and the diameter of the inlet of the main runner is larger than the diameter of the outlet of the main runner.

Preferably, the device comprises at least one secondary flow channel, and the at least one secondary flow channel is distributed along the periphery of the main flow channel.

Preferably, the secondary flow channel is a cylindrical pipe.

Preferably, the secondary flow channel is an annular channel, a plurality of partition plates are arranged in the annular channel at intervals, and the annular channel divides the sliding block into a first sliding block and a second sliding block.

Preferably, the baffle is annular, and the outer wall of the baffle is fixedly connected with the inner wall of the pipe body.

Preferably, the baffle is made of rubber.

Preferably, the elastic part is a compression spring, the compression spring is sleeved on the outer wall of the sliding block, a connecting block is fixedly mounted on the outer wall of the sliding block, one end of the compression spring is fixedly connected with the baffle, and the other end of the compression spring is fixedly connected with the connecting block.

The utility model provides a flow adjustable degassing chamber, includes the feed liquor pipe, the intraductal flow adjustable pipeline structure that is equipped with of feed liquor.

The invention has the beneficial effects that:

the slide block, the baffle plate matched with the slide block and the elastic piece are arranged in the tube body, and when the spring is in a natural state, fluid flowing out of the auxiliary channel can flow out and enter the downstream of the tube body through the through hole in the baffle plate; the inclined plane is arranged in the main flow channel on the sliding block, when fluid enters the main flow channel, the fluid is in contact with the inclined plane, the sliding block can move along the movement direction of the fluid by the thrust of the fluid to the inclined plane, the flow velocity of the fluid is larger, the thrust of the fluid to the sliding block is larger, when the fluid pushes the sliding block to overcome the elasticity of the elastic piece and compress the elastic piece until the elastic piece is not compressed any more, the outlet of the auxiliary flow channel is blocked by the baffle, at the moment, the fluid can only enter the downstream of the pipe body from the main flow channel, the control of the flow channel in the pipe body is achieved in sequence, a valve body does not need to be additionally arranged, the flow velocity of the fluid can be controlled only through the flow velocity of the fluid, the structure is simple, and the application range is wide.

The pipeline structure is arranged in a liquid inlet pipe of the degassing chamber, the flow speed of the cooling liquid flowing into the degassing chamber through the liquid inlet pipe is changed by utilizing the pressure difference change between the pressure in the degassing chamber and the pressure difference change in a water loop of the engine, the flow of the cooling liquid entering the degassing chamber is changed, when the rotating speed of the engine is high, the cooling liquid entering the degassing chamber is less, and incomplete degassing caused by the fact that a water-gas mixture does not have time to separate and enters a water supplementing pipe can be avoided; when the engine speed is low, more cooling liquid enters the degassing chamber, so that the degassing capacity is improved; through the pipeline structure, need not to add the valve body and can match current engine operating mode, realized good degasification effect.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic view of a compressed elastic member according to embodiment 1 of the present invention;

FIG. 2 is a schematic view of the structure of the elastic member compressed according to embodiment 2 of the present invention;

FIG. 3 is a schematic structural view of an elastic member in a natural state according to embodiment 2 of the present invention;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;

fig. 5 is a schematic structural diagram of a secondary flow channel in embodiment 3 of the present invention.

The labels in the figure are: the structure comprises a pipe body 1, a sliding block 2, a baffle 3, an elastic part 4, a sealing ring 5, a main flow channel 201, a secondary flow channel 202, a connecting block 203, a partition plate 204 and a through hole 301.

Detailed Description

Example 1

The technical solutions in the present embodiments will be clearly and completely described below with reference to the accompanying drawings in the present embodiments, which, however, should not be construed as limiting the invention to specific embodiments, but are for explanation and understanding only:

as shown in fig. 1, the present embodiment provides a flow-adjustable pipeline structure, which is disposed in a pipe body 1 and includes a sliding block 2, a baffle 3, an elastic member 4 and a sealing ring 5.

The slider 2 is the cylinder type, and slider 2 activity sets up in body 1, and slider 2 can be followed the trend reciprocating motion of pipeline.

The slider 2 is provided with a main flow channel 201 and an auxiliary flow channel 202, the main flow channel 201 and the auxiliary flow channel 202 axially penetrate through two ends of the slider 2, and the auxiliary flow channel 202 and the main flow channel 201 have the same flow direction. 2 outer walls of slider have been opened along its circumference has the round recess, installs sealing ring 5 in the recess, and 5 outer walls of sealing ring are pasted with 1 inner wall of body mutually, and sealing ring 5 adopts rubber material, and is spacing and guarantee that it can be gliding in body 1 to slider 2 in, and sealing ring 5 makes liquid accessible main flow passage 201 and side flow passage 202 pass through slider 2 only.

The inclined plane is arranged in the main flow channel 201, the inclined plane inclines towards the inlet of the main flow channel 201, when fluid enters the main flow channel 201, the fluid is in contact with the inclined plane, the slider 2 can move along the moving direction of the fluid due to the thrust of the fluid to the inclined plane, and the thrust of the fluid to the slider 2 is larger when the flow rate of the fluid is larger.

The slider 2 comprises at least one secondary runner 202, the at least one secondary runner 202 is distributed along the periphery of the primary runner 201, and the secondary runner 202 is a cylindrical pipeline.

The baffle 3 is arranged on the inner wall of the pipe body 1, the baffle 3 is in a circular ring shape, the outer wall of the baffle 3 is fixedly connected with the inner wall of the pipe body 1, a through hole 301 communicated with the main flow channel 201 is formed in the baffle 3, and the diameter of the through hole 301 is larger than the diameter of an outlet of the main flow channel 201; baffle 3 adopts the rubber material to make, has better leakproofness, and the ratio interval of 3 thickness of baffle and the diameter of setting in body 1 is 0.1 ~ 0.4 to make the baffle 3 of rubber material possess the leakproofness simultaneously, possess better support performance.

The elastic part 4 is connected with the baffle 3 and the sliding block 2, and when the elastic part 4 is compressed, the baffle 3 seals the outlet of the secondary flow passage 202. Elastic component 4 is compression spring, and compression spring cup joints at 2 outer walls of slider, and 2 outer walls of slider fixed mounting have connecting block 203, compression spring's one end and 3 fixed connection of baffle, compression spring's the other end and connecting block 203 fixed connection, and when the spring was in natural state, leave the clearance between baffle 3 and the slider 2, the liquid that makes the accessory channel outflow can flow out and get into the low reaches of body 1 by through-hole 301.

The sealing ring 5 is positioned on the side of the sliding block 2 away from the baffle 3 and is not in contact with the connecting block 203 and the elastic member 4.

Example 2

As shown in fig. 2 to 4, the present embodiment is substantially the same as embodiment 1, and only changes are made to the main flow channel 201 and the sub flow channel 202.

In this embodiment, the main flow channel 201 is in a frustum shape, the axis of the main flow channel 201 and the axis of the slider 2 are located on the same straight line, the diameter of the inlet of the main flow channel 201 is larger than the diameter of the outlet of the main flow channel 201, at this time, the inner wall of the main flow channel 201 is an inclined surface, liquid entering from the inlet of the main flow channel 201 contacts with the inner wall of the main flow channel 201 to apply pressure to the inner annular wall of the main flow channel 201, and because the main flow channel 201 is in a frustum shape, the pressure applied by the fluid to each part of the inner wall of the main flow channel 201 is more uniform, which is beneficial to stable sliding of the slider 2 and prolongs the service life; avoid in the long-time use that certain side atress of sprue 201 is more and make the outer wall of this side slider 2 and the friction of 1 inner wall of body big, lead to wearing and tearing, and then reduce life.

The present embodiment includes five secondary flow channels 202, and the secondary flow channels 202 are uniformly distributed around the primary flow channel 201.

Example 3

As shown in fig. 5, the present embodiment is substantially the same as embodiment 2, and changes are made only to the secondary flow channel 202.

In this embodiment, the secondary flow channel 202 is an annular channel, which is an annular channel, a plurality of partition plates 204 are disposed at intervals in the annular channel, the annular channel divides the slider 2 into a first slider and a second slider, the primary flow channel 201 is disposed on the second slider, so that the first slider and the second slider are both in a tubular shape, the second slider is sleeved in the first slider, the first slider and the second slider are coaxial, the channel between the first slider and the second slider is the secondary flow channel 202, at this time, the flow rate of the liquid that the secondary flow channel 202 can pass through is large, and under the condition of the same flow rate, when the secondary flow channel 202 is blocked by the baffle 3, the flow rate that can be adjusted by the pipeline mechanism is also large, and the reaction is rapid. The two ends of the partition 204 are respectively fixedly connected with the inner wall of the first sliding block and the outer wall of the second sliding block, so that the positions of the first sliding block and the second sliding block are relatively fixed.

Example 4

The embodiment provides a flow adjustable degassing chamber, including the feed liquor pipe, install the flow adjustable pipeline structure in embodiment 1 ~ embodiment 3 in the feed liquor pipe.

The main function of the deaeration chamber in the engine cooling circuit is to store the cooling liquid with increased temperature and volume expansion, and the deaeration chamber has the functions of separating bubbles generated in the cooling circuit from the cooling liquid, stabilizing the system pressure and the like. The inventor finds that the aperture of a liquid inlet pipe orifice of a degassing chamber is fixed and unchangeable, the liquid inlet flow of the degassing chamber cannot be adjusted, when an engine is in different working conditions, the liquid inlet flow is unlimited, the problems of incomplete degassing, slow degassing and the like can exist, the degassing effect cannot be matched with the current working conditions of the engine, and therefore a good degassing effect cannot be realized; when the engine speed is low, the pressure difference between the pressure in the degassing chamber and the pressure in the engine water circuit is small, so that less cooling liquid enters the degassing chamber, and the degassing capacity of the cooling liquid is low.

In order to achieve a good degassing effect, the inventor draws a conclusion through reasoning and practice that when the rotating speed of an engine is high, the flow of cooling liquid entering a degassing chamber is small in order to avoid the problems that more gas is involved in a water replenishing port of the degassing chamber due to overlarge flow and liquid and gas are not separated in the degassing chamber timely; when the engine speed is low, the flow in the degassing chamber should be large in order to avoid the influence of the small inner diameter of the degassing port on the degassing effect.

In the embodiment, after a flow-adjustable pipeline structure is additionally arranged in a liquid inlet pipe of a deaeration chamber, when the engine speed is high, the pressure difference between the pressure in the deaeration chamber and the pressure in an engine water loop is large, the flow of cooling liquid flowing into the deaeration chamber is also large, the flow velocity of the cooling liquid passing through a main flow passage 201 and an auxiliary flow passage 202 is large at the moment, the thrust on a sliding block 2 is also large, the sliding block 2 runs along the flowing direction of the cooling liquid under the thrust, an elastic part 4 is compressed to enable the sliding block 2 to be close to a baffle 3 and finally to be in contact with the baffle 3, the baffle 3 can seal the auxiliary flow passage 202, the cooling liquid can only flow in through the main flow passage, and the flow of the cooling liquid entering the deaeration chamber in unit time is reduced; when the engine speed is low, the pressure difference between the pressure in the deaeration chamber and the engine water loop is small, the flow of the cooling liquid flowing into the deaeration chamber is also small, the flow speed of the cooling liquid passing through the main flow passage 201 and the auxiliary flow passage 202 is reduced at the moment, the thrust of the cooling liquid to the sliding block 2 is smaller than the resilience force of the elastic part 4, the elastic part 4 rebounds to a natural state gradually at the moment, the sliding block 2 is far away from the baffle 3, the cooling liquid can flow into the deaeration chamber from the auxiliary flow passage 202, the flow of the cooling liquid entering the deaeration chamber in unit time is larger than that of the cooling liquid when the engine speed is high, and the deaeration efficiency of the deaeration chamber is ensured.

Utilize the engine speed different, the coolant liquid is to the driving force variation of elastic component 4 to realize the automatically regulated of degassing chamber coolant liquid flow, degassing effect is good and degassing effect can match current engine operating mode.

It is to be understood that the above examples are merely illustrative for clarity of description and are not limiting on the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are intended to be within the scope of the invention.

Claims

1. The utility model provides a flow adjustable degassing chamber, includes the feed liquor pipe, the feed liquor pipe has flow adjustable pipeline structure, pipeline structure sets up in the body, its characterized in that includes:

the sliding block is movably arranged in the tube body;

the main runner axially penetrates through two ends of the sliding block, an inclined plane is arranged in the main runner, and the inclined plane inclines towards the inlet of the main runner; the main runner is in a frustum shape, the axis of the main runner and the axis of the sliding block are positioned on the same straight line, and the diameter of the inlet of the main runner is larger than that of the outlet of the main runner;

2. The degassing chamber with adjustable flow rate of claim 1, wherein the sliding block is cylindrical, a sealing ring is installed on one side of the outer wall of the sliding block, which is far away from the baffle, and the outer wall of the sealing ring is attached to the inner wall of the pipe body, so that liquid can only pass through the sliding block through the main flow passage and the auxiliary flow passage.

3. The degassing chamber with adjustable flow rate of claim 1 comprising at least one of said secondary flow channels, wherein at least one of said secondary flow channels is distributed along the periphery of said primary flow channel.

4. The adjustable flow deaeration chamber of claim 3 wherein said secondary flowpath is a cylindrical conduit.

5. The degassing chamber with adjustable flow rate of claim 3 wherein the secondary flow channel is an annular channel, a plurality of partition plates are arranged in the annular channel at intervals, and the annular channel divides the slide block into a first slide block and a second slide block.

6. The degassing chamber with adjustable flow rate of claim 1 wherein the baffle is circular and the outer wall of the baffle is fixedly connected to the inner wall of the tube.

7. The degassing chamber with adjustable flow rate of claim 6 wherein the baffle is made of rubber.

8. The degassing chamber with adjustable flow rate of claim 1, wherein the elastic member is a compression spring, the compression spring is sleeved on the outer wall of the sliding block, a connecting block is fixedly installed on the outer wall of the sliding block, one end of the compression spring is fixedly connected with the baffle, and the other end of the compression spring is fixedly connected with the connecting block.