CN211924940U - Expansion backstop and fluid transmission and distribution control structure with same - Google Patents

Abstract

The utility model discloses an inflation non return ware and have fluid transmission and distribution control structure of inflation non return ware, including fluid delivery pump and fluid delivery pipe, fluid delivery pipe's one end and fluid delivery pump's export intercommunication have the inflation bag at fluid delivery pipe's other end fixed mounting, fluid delivery pipe alternate inside the inflation bag, the inflation bag is stretched out to the tip, and is equipped with the narrow mouthful pipe of reducing at fluid delivery pipe's tip, inflation bag both ends and fluid delivery pipe sealing connection open on the fluid delivery pipe that lies in inflation bag inside and have the trompil of releasing pressure. The control of the bidirectional transmission of the fluid medium in the two fluid containers is realized by installing the expansion backstop between the two fluid containers. The utility model discloses well inflation non return ware structure utilizes water pump or fan increase inflation non return ware internal fluid pressure for the inflation bag takes place deformation and forms the wall space in the position that the non return ware was installed, and reaches the purpose that the fluid expert in the control duct, disconnected and flow direction switch.

Description

Expansion backstop and fluid transmission and distribution control structure with same

Technical Field

The utility model relates to a fluid transport control technical field especially relates to an inflation non return ware and have fluid transmission and distribution control structure of inflation non return ware.

Background

The check device of the existing pipeline generally adopts a check valve and does not have the functions of bidirectional circulation, bidirectional check and check direction switching.

The general fluid distribution and regulation needs a plurality of pipelines, valve sets and the like, and the system is complex. In some non-damaged pipeline installation processes, the surfaces of pipelines cannot be damaged or mechanically connected so as to ensure that the surfaces of the installed pipelines are smooth and flat, and no corresponding technical measures are available at present to enable the pipelines to have an adjustable function.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an inflation non return device and have fluid transportation and distribution control structure of inflation non return device in order to compensate prior art's defect exactly.

The utility model discloses a realize through following technical scheme:

the expansion backstop comprises a fluid conveying pump and a fluid conveying pipe, wherein one end of the fluid conveying pipe is communicated with an outlet of the fluid conveying pump, an expansion bag is fixedly arranged at the other end of the fluid conveying pipe, the fluid conveying pipe is inserted into the expansion bag, the end part of the fluid conveying pipe extends out of the expansion bag, a reducing narrow-mouth pipe is arranged at the end part of the fluid conveying pipe, two ends of the expansion bag are connected with the fluid conveying pipe in a sealing mode, and a pressure release opening hole is formed in the fluid conveying pipe inside the expansion bag.

And a check valve is arranged on the fluid delivery pipe and is positioned between the fluid delivery pump and the expansion bag.

The fluid delivery pump is a water pump or an air pump.

A fluid delivery control structure with an expansion check device comprises two fluid containers, and the expansion check device is arranged between the two fluid containers to realize the control of the bidirectional delivery of fluid media in the two fluid containers. The number of the expansion backstops can be combined and installed according to actual needs.

The two fluid containers comprise a first container and a second container, the first container and the second container are different in height, an opening is formed in the bottom of the side face of the second container and connected with a pipeline, the other end of the pipeline is communicated with an inlet and an outlet of the first container, a fluid conveying pump of the expansion check device is installed in the first container, an expansion bag of the expansion check device is located in the pipeline, and when fluid in the second container is conveyed to the first container: the fluid delivery pump is not started, the expansion bag is in a non-pressure contraction state and releases the space in the pipeline, and the fluid in the container II flows to the container I by virtue of gravity; when the fluid in the first container is conveyed to the second container: the fluid delivery pump is started, fluid flows through the expansion bag through the fluid delivery pipe and then reaches the reducing narrow-mouth pipe, the fluid outflow is blocked due to the large resistance of the reducing narrow-mouth pipe, the fluid retained at the pressure release opening escapes into the expansion bag, the internal pressure of the fluid is increased, the fluid is in a pressure expansion state, the expanded expansion bag cuts off a channel of the pipeline, the fluid in the container II cannot flow to the container I, and the fluid in the reducing narrow-mouth pipe is continuously injected into the container II from the reducing narrow-mouth pipe, so that the purpose of delivering the fluid from the container I to the container II is achieved. When the fluid is lighter than air, the second container is lower than the first container.

The two fluid containers comprise a container III and a container IV which are connected into a whole through a horizontal channel, two expansion check devices are arranged between the container III and the container IV, fluid delivery pumps of the two expansion check devices are respectively arranged in the container III and the container IV, and expansion bags of the two expansion check devices are respectively positioned in the horizontal channel;

(1) the operating condition of the single pump is as follows: when the fluid conveying pump in the container III is started, the expansion bag corresponding to the fluid conveying pump is expanded, and the fluid in the container III is conveyed to the container IV; when the fluid conveying pump in the container IV is started, the expansion bag corresponding to the fluid conveying pump is expanded, and the fluid in the container IV is conveyed to the container III;

(2) double pump isobaric operating conditions: when the two fluid delivery pumps are started simultaneously, the two expansion bags expand to form a pressure space between the two expansion bags, and because the two expansion bags are in equal pressure, the fluid stops between the two expansion bags to reach a stable state, the medium does not flow back under the action of the check valve, and the horizontal channel is cut off;

(3) double pump non-isobaric operating conditions: when the two fluid delivery pumps are started simultaneously, the two expansion bags expand to form a pressure space between the two expansion bags, wherein one fluid delivery pump has a higher lift than the other fluid delivery pump, so that the expansion bags on the two sides do not pressurize equally, therefore, the fluid of the high-pressure side expansion bag compresses a gap between the low-pressure side expansion bag and the horizontal channel and causes the low-pressure side expansion bag to contract, the compressed side circulation channel is opened, and the high-pressure side fluid and the low-pressure side fluid flow to the low-pressure side through the formed channels simultaneously.

The utility model utilizes the fluid pressure to deform the expansion structure, and realizes the functions of opening, closing, flow regulation, flow direction regulation and bidirectional non-return in the positive and negative directions of the pipeline;

the principle structure of the utility model can play the function of a one-way valve or a multi-way valve or a combined valve set, and the purpose of one-way or multi-way medium transmission and distribution adjustment can be realized by matching;

the utility model discloses can realize that the pipeline does not have the damaged installation.

The utility model has the advantages that: 1. the utility model discloses the pressure of the fluid in the expansion backstop is increased to the well inflation backstop structure and utilizes water pump or fan to make the inflation bag take place deformation and form and cut off the space in the position that the backstop is installed, and reach the switching purpose of fluid on-off and flow direction in the control pipeline; the function solves the automatic control of the on, off and two-way circulation of the pipeline, and does not need to adopt the installation mode of a damaged pipeline.

2. The utility model can partially or completely replace the check valve and the multi-way valve, reduce the use number of the system spare and accessory parts and reduce the maintenance rate of the system; let conventional pipeline realize multidirectional circulation earlier or end, need use a plurality of root canals way and valves to constitute fluid transmission and distribution pipe network, the utility model discloses only need a pipeline can realize above-mentioned function, reduced the cost, simplified the pipeline, reduced the use of accessories and improved the stability of system.

3. The utility model can establish the fluid conveying logic among a plurality of containers by utilizing the pressure principle; and pressure control logic is set according to specific application requirements to achieve the control purpose.

4. The utility model can be used for the reconstruction of the existing pipeline; in some places, only one pipeline can be installed or cannot be added, but the process needs to circulate multiple media or change the flow direction of the media or control the on-off of the pipeline, and the aim of controlling the pipeline in multiple directions can be fulfilled by using the device.

5. The utility model can be used for the bidirectional circulation and cut-off between the containers which can only be connected by a single pipeline; in some places, only one pipeline can be installed, but the process needs to circulate various media or change the flow direction of the media or control the on-off of the pipeline, and the aim of controlling the pipeline in multiple directions can be fulfilled by using the device.

6. The utility model can be used for the transmission and distribution of the undiscoverable medium; the safety performance requirements of some media are very high, the media in the pipeline cannot leak and cannot infiltrate, and the device can be adopted for matching.

7. Can be used for medium control of unbreakable pipelines. Some pipelines require the surface not to be damaged, or require the pipeline surface to be bright and clean and level, so just can not adopt damaged mode installation valves, adopt the pipeline to embed this moment the utility model discloses a mode can the problem of solving.

Drawings

Fig. 1 is a schematic structural view of the expansion backstop of the present invention.

Fig. 2 is a schematic diagram of a fluid delivery control structure with an expansion check device in which two containers are not at the same height.

FIG. 3 is a schematic diagram of a fluid delivery and distribution control structure under a single-pump operation condition and a double-pump isobaric operation condition.

FIG. 4 is a schematic diagram of a fluid delivery control configuration under a dual pump non-isobaric operating condition.

Detailed Description

As shown in fig. 1, an expansion backstop comprises a fluid delivery pump 1 and a fluid delivery pipe 2, wherein one end of the fluid delivery pipe 2 is communicated with an outlet of the fluid delivery pump 1, an expansion bag 3 is fixedly installed at the other end of the fluid delivery pipe 2, the fluid delivery pipe 2 is inserted into the expansion bag 3, the end part of the fluid delivery pipe 2 extends out of the expansion bag 3, a reducing narrow-mouth pipe 4 is arranged at the end part of the fluid delivery pipe 2, two ends of the expansion bag 3 are hermetically connected with the fluid delivery pipe 2, and a pressure release opening 5 is formed in the fluid delivery pipe 2 inside the expansion bag 3.

A check valve 6 is mounted on the fluid delivery tube 2, and the check valve 6 is positioned between the fluid delivery pump 1 and the inflatable bladder 3. The check valve 6 is added to the requirement relating to the bidirectional and multidirectional flow directions, and the check valve 6 can be judged whether to be installed or not according to the actual requirement in other situations.

The fluid delivery pump 1 is a water pump or an air pump.

A fluid delivery control structure with an expansion check device comprises two fluid containers, and the expansion check device is arranged between the two fluid containers to realize the control of the bidirectional delivery of fluid media in the two fluid containers. The number of the expansion backstops can be combined and installed according to actual needs.

As shown in fig. 2, the two fluid containers include a container one 7 and a container two 8, the container one 7 and the container two 8 have different heights, an opening is formed at the bottom of the side surface of the container two 8 and is connected with a pipeline 9, the other end of the pipeline 9 is communicated with an inlet and an outlet of the container one 7, the fluid delivery pump 1 of the expansion backstop is installed in the container one 7, the expansion bag 3 of the expansion backstop is positioned in the pipeline 9, and when the fluid in the container two 8 is delivered to the container one 7: the fluid delivery pump 1 is not started, the expansion bag 3 is in a non-pressure contraction state and releases the space in the pipeline 9, and the fluid in the second container 8 flows to the first container 7 by virtue of gravity; when the fluid in the first container 7 is conveyed to the second container 8: the fluid delivery pump 1 is started, fluid flows through the expansion bag 3 through the fluid delivery pipe 2 and then reaches the reducing narrow-mouth pipe 4, the fluid outflow is blocked due to the large resistance of the reducing narrow-mouth pipe 4, the fluid retained at the pressure release opening 5 escapes into the expansion bag 3 to cause the internal pressure of the expansion bag to rise, so that the expansion bag is in a pressure expansion state, the expanded expansion bag 3 cuts off a channel of the pipeline 9, the fluid in the container II 8 cannot flow to the container I7, and the fluid in the reducing narrow-mouth pipe is continuously injected into the container II 8 from the reducing narrow-mouth pipe, so that the purpose of delivering the fluid from the container I7 to the container II 8 is achieved. When the fluid is a lighter-than-air gas, container two 8 is at a lower elevation than container one 7.

The two fluid containers comprise a container III 10 and a container IV 11, the container III 10 and the container IV 11 are connected into a whole through a horizontal channel 12, two expansion check devices are arranged between the container III 10 and the container IV 11, the fluid delivery pumps 1 of the two expansion check devices are respectively arranged in the container III 10 and the container IV 11, and the expansion bags 3 of the two expansion check devices are respectively positioned in the horizontal channel 12;

as shown in fig. 3, (1) single pump operation condition: when the fluid conveying pump in the container III 10 is started, the corresponding expansion bag is expanded, and the fluid in the container III 10 is conveyed to the container IV 11; when the fluid conveying pump in the container IV 11 is started, the corresponding expansion bag is expanded, and the fluid in the container IV 11 is conveyed to the container III 10;

(2) double pump isobaric operating conditions: when the two fluid delivery pumps are started simultaneously, the two expansion bags expand to form a pressure space between the two expansion bags, and because the two expansion bags are in equal pressure, the fluid stops between the two expansion bags to reach a stable state, the medium does not flow back under the action of the check valve, and the horizontal channel 12 is cut off;

as shown in fig. 4, (3) double pump non-isobaric operating conditions: when the two fluid delivery pumps are started simultaneously, the two expansion bags expand to form a pressure space between the two expansion bags, wherein one fluid delivery pump has a higher lift than the other fluid delivery pump, so that the two expansion bags are not pressurized equally, therefore, the fluid of the high-pressure side expansion bag compresses a gap between the low-pressure side expansion bag and the horizontal channel 12 and causes the low-pressure side expansion bag to contract, the compressed side circulation channel is opened, and the high-pressure side fluid and the low-pressure side fluid flow to the low-pressure side through the formed channels simultaneously.

The fluid is gas or water, and the container is a water pool or a gas container.

Claims (6)

1. An expansion check device, comprising: the device comprises a fluid delivery pump and a fluid delivery pipe, wherein one end of the fluid delivery pipe is communicated with an outlet of the fluid delivery pump, an expansion bag is fixedly arranged at the other end of the fluid delivery pipe, the fluid delivery pipe is inserted into the expansion bag, the end part of the fluid delivery pipe extends out of the expansion bag, a reducing narrow-mouth pipe is arranged at the end part of the fluid delivery pipe, the two ends of the expansion bag are hermetically connected with the fluid delivery pipe, and a pressure release opening hole is formed in the fluid delivery pipe inside the expansion bag.

2. An expansion check device as claimed in claim 1, wherein: and a check valve is arranged on the fluid delivery pipe and is positioned between the fluid delivery pump and the expansion bag.

3. An expansion check device as claimed in claim 1, wherein: the fluid delivery pump is a water pump or an air pump.

4. A fluid delivery control structure with an expansion check device, characterized in that: the device comprises two fluid containers, and the control of the bidirectional transmission of the fluid medium in the two fluid containers is realized by installing the expansion check device between the two fluid containers.

5. The fluid delivery control structure with expansion check device of claim 4, wherein: the two fluid containers comprise a first container and a second container, the first container and the second container are different in height, an opening is formed in the bottom of the side face of the second container and connected with a pipeline, the other end of the pipeline is communicated with an inlet and an outlet of the first container, a fluid conveying pump of the expansion check device is installed in the first container, an expansion bag of the expansion check device is located in the pipeline, and when fluid in the second container is conveyed to the first container: the fluid delivery pump is not started, the expansion bag is in a non-pressure contraction state and releases the space in the pipeline, and the fluid in the container II flows to the container I by virtue of gravity; when the fluid in the first container is conveyed to the second container: the fluid delivery pump is started, fluid flows through the expansion bag through the fluid delivery pipe and then reaches the reducing narrow-mouth pipe, the fluid outflow is blocked due to the large resistance of the reducing narrow-mouth pipe, the fluid retained at the pressure release opening escapes into the expansion bag, the internal pressure of the fluid is increased, the fluid is in a pressure expansion state, the expanded expansion bag cuts off a channel of the pipeline, the fluid in the container II cannot flow to the container I, and the fluid in the reducing narrow-mouth pipe is continuously injected into the container II from the reducing narrow-mouth pipe, so that the purpose of delivering the fluid from the container I to the container II is achieved.

6. The fluid delivery control structure with expansion check device of claim 4, wherein: the two fluid containers comprise a container III and a container IV which are connected into a whole through a horizontal channel, two expansion check devices are arranged between the container III and the container IV, fluid delivery pumps of the two expansion check devices are respectively arranged in the container III and the container IV, and expansion bags of the two expansion check devices are respectively positioned in the horizontal channel;

(1) the operating condition of the single pump is as follows: when the fluid conveying pump in the container III is started, the expansion bag corresponding to the fluid conveying pump is expanded, and the fluid in the container III is conveyed to the container IV; when the fluid conveying pump in the container IV is started, the expansion bag corresponding to the fluid conveying pump is expanded, and the fluid in the container IV is conveyed to the container III;

(2) double pump isobaric operating conditions: when the two fluid delivery pumps are started simultaneously, the two expansion bags expand to form a pressure space between the two expansion bags, and because the two expansion bags are in equal pressure, the fluid stops between the two expansion bags to reach a stable state, the medium does not flow back under the action of the check valve, and the horizontal channel is cut off;

(3) double pump non-isobaric operating conditions: when the two fluid delivery pumps are started simultaneously, the two expansion bags expand to form a pressure space between the two expansion bags, wherein one fluid delivery pump has a higher lift than the other fluid delivery pump, so that the expansion bags on the two sides do not pressurize equally, therefore, the fluid of the high-pressure side expansion bag compresses a gap between the low-pressure side expansion bag and the horizontal channel and causes the low-pressure side expansion bag to contract, the compressed side circulation channel is opened, and the high-pressure side fluid and the low-pressure side fluid flow to the low-pressure side through the formed channels simultaneously.

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