Branch pipe energy consumption type reverse osmosis safety burst membrane protection device

Abstract

The application provides a kind of branch pipe energy consumption type reverse osmosis safety burst membrane protection device, relating to the technical field of safety burst membrane, comprising original pipeline, burst membrane and branch pipe, the burst membrane is arranged in the original pipeline, the two ends of the branch pipe are respectively communicated on the original pipeline before the front side of the burst membrane, the first valve for controlling the on-off of the branch pipe is arranged on the branch pipe, the second valve for controlling the on-off of the original pipeline is arranged in the pipeline between the two ends of the original pipeline and the branch pipe; at least part of the branch pipe is in reciprocating bending or spiral structure. The scheme provided by the application can reduce the damage of "water hammer" to the safety burst membrane during start-up and shutdown.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of safe burst membrane, in particular to a branch pipe energy dissipation type reverse osmosis safe burst membrane protection device. BACKGROUND

[0002] The safe burst membrane is mainly applied to large reverse osmosis such as power plants, steel plants and seawater desalination. The safe burst membrane is generally installed on the side of the water production pipeline, mainly to prevent the generation of back pressure, which leads to the damage of the reverse osmosis membrane. Generally, when the back pressure of the water production side is greater than 0.3 MPa, the safe burst membrane is broken to release pressure to avoid the damage of the membrane element. Since the generation of "water hammer" cannot be avoided in the system design, when the back pressure of the water production side does not exceed 0.3 MPa, the safe burst membrane is likely to be broken by the impact of "water hammer", especially during start-up and shutdown. This will cause the system to stop running, and also cause the waste of the safe burst membrane. Therefore, a new scheme is needed to solve the above problems. SUMMARY

[0003] The purpose of the present application is to provide a branch pipe energy dissipation type reverse osmosis safe burst membrane protection device to solve the problems existing in the prior art and reduce the damage of "water hammer" to the safe burst membrane during start-up and shutdown.

[0004] To achieve the above-mentioned purpose, the present application provides the following scheme:

[0005] The present application provides a branch pipe energy dissipation type reverse osmosis safe burst membrane protection device, which comprises a original pipeline, a burst membrane and a branch pipe. The burst membrane is arranged in the original pipeline. The two ends of the branch pipe are respectively connected to the original pipeline on the front side of the burst membrane. A first valve for controlling the opening and closing of the branch pipe is arranged on the branch pipe. A second valve for controlling the opening and closing of the original pipeline is arranged in the pipeline between the two ends of the branch pipe. At least part of the branch pipe is in a reciprocating bending or spiral structure.

[0006] Preferably, the water outlet of the branch pipe is arranged to be inclined upward, so that the fluid flowing out of the water outlet can impact on the inner wall of the original pipeline and then flow to the burst membrane.

[0007] Preferably, the first valve and the second valve are solenoid valves.

[0008] Preferably, the inner wall of the branch pipe is covered with an energy absorption layer.

[0009] Preferably, the energy absorption layer is made of sponge or MnCu type energy absorption damping material.

[0010] Preferably, the energy absorption layer is in a honeycomb structure.

[0011] The present application has the following technical effects compared with the prior art:

[0012] In normal state, the first valve is in closed state and the second valve is in open state, so that the explosion membrane can sensitively perceive the change of liquid pressure, before starting or stopping, the first valve is opened and the second valve is closed, so that the water hammer first passes through the branch pipe to consume energy and then acts on the explosion membrane, the impact force of the water hammer after consuming energy in the branch pipe is weakened, thereby avoiding the damage of the water hammer directly acting on the explosion membrane, therefore, the scheme provided by the present application can reduce the damage of the water hammer to the safe explosion membrane during starting and stopping. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description only represent some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0014] Figure 1 The structure diagram of the branch pipe energy consumption type reverse osmosis safe explosion membrane protection device provided by the present application is shown in the figure.

[0015] In the figure: 1-branch pipe; 2-first valve; 3-original pipeline; 4-second valve; 5-explosion membrane. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments only represent some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative effort belong to the protection scope of the present application.

[0017] The purpose of the present application is to provide a branch pipe energy consumption type reverse osmosis safe explosion membrane protection device to solve the problems in the prior art and reduce the damage of the water hammer to the safe explosion membrane during starting and stopping.

[0018] In order to make the above-mentioned purposes, characteristics and advantages of the present application more obvious and easy to understand, the present application will be further described in detail in combination with the drawings and specific embodiments.

[0019] The present application provides a branch pipe energy consumption type reverse osmosis safe explosion membrane protection device, as shown in Figure 1As shown, including the original pipeline 3, the burst membrane 5 and branch pipe 1, the burst membrane 5 is arranged in the original pipeline 3, after the liquid pressure in the original pipeline 3 is greater than a certain value, the burst membrane 5 is broken and then releases the liquid, reduces the hydraulic pressure, prevents the liquid from fracturing the permeable membrane, the two ends of the branch pipe 1 are respectively communicated with the original pipeline 3 on the front side of the burst membrane 5, the first valve 2 for controlling the on-off of the branch pipe 1 is arranged on the branch pipe 1, the second valve 4 for controlling the on-off of the original pipeline 3 is arranged between the pipeline connected with the two ends of the branch pipe 1; in some embodiments, the first valve 2 and the second valve 4 are solenoid valves; at least part of the branch pipe 1 is in a reciprocating curved shape or a spiral shape structure, when the fluid flows in the curved pipe in the reciprocating curved shape or the spiral shape structure, kinetic energy loss exists, thereby playing a role in reducing the "water hammer" impact force.

[0020] Under normal circumstances, the first valve 2 is in a closed state, and the second valve 4 is in an open state, so that the burst membrane 5 can sensitively sense the change of the liquid pressure, before starting or stopping, the first valve 2 is opened, and the second valve 4 is closed, so that the "water hammer" first passes through the energy consumption of the branch pipe 1 and then acts on the burst membrane 5, the "water hammer" impact force after passing through the energy consumption of the branch pipe 1 is weakened, thereby avoiding the damage of the "water hammer" directly acting on the burst membrane 5, therefore, the scheme provided by the present application can reduce the damage of the "water hammer" to the safety burst membrane 5 during starting and stopping.

[0021] In some embodiments, the water outlet of the branch pipe 1 is inclined upward, so that the fluid flowing out of the water outlet can impact on the inner wall of the original pipeline 3 after being inclined upward, and then flow to the burst membrane 5, thereby further consuming the energy of the fluid, and weakening the impact of the fluid on the burst membrane 5.

[0022] In some embodiments, the inner wall of the branch pipe 1 is covered with an energy absorption layer, the energy absorption layer plays a buffering role, specifically, the energy absorption layer can be made of sponge or MnCu type energy absorption damping material; the adhesion of the sponge to the liquid is large, so as to buffer the "water hammer", the MnCu type energy absorption damping material can convert the external impact energy into heat energy and dissipate in the surrounding environment through the reversible movement of the internal micro interface, realize high damping characteristics, and in other embodiments, the energy absorption layer can be a honeycomb structure, the honeycomb structure can also increase the friction energy consumption effect.

[0023] In the present application, specific examples are applied to describe the principles and implementation modes of the present application, the above embodiment is only used to help understand the method and core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, the specific implementation mode and application range will be changed. In view of the above, the content of the specification should not be understood as a limitation of the present application.

Claims

1. A branch pipe energy dissipation type reverse osmosis safety burst membrane protection device, characterized in that: The original pipeline, the blasting membrane and the branch pipeline are included, the blasting membrane is arranged in the original pipeline, two ends of the branch pipeline are communicated with the original pipeline in front of the blasting membrane, the first valve for controlling the branch pipeline is arranged on the branch pipeline, the second valve for controlling the original pipeline is arranged in the pipeline between the original pipeline and the branch pipeline, at least part of the branch pipeline is in the reciprocating bending or spiral structure, the water outlet of the branch pipeline is arranged obliquely upward, so that the fluid flowing out of the water outlet can impact on the inner wall of the original pipeline obliquely upward and then flow to the blasting membrane, the inner wall of the branch pipeline is covered with the energy absorption layer, in the normal state, the first valve is in the closed state and the second valve is in the open state, before starting or stopping, the first valve is opened and the second valve is closed.

2. The branch energy dissipating reverse osmosis safe burst membrane protection device according to claim 1, characterized in that: The first valve and the second valve are solenoid valves.

3. The branch energy dissipating type RO safety burst membrane protector according to claim 1, characterized in that: The energy absorption layer is made of sponge or MnCu energy absorption damping material.

4. The branch energy dissipating RO safe burst membrane protection device according to claim 1, characterized in that: The energy absorption layer is in the honeycomb structure.

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