CN213193227U

CN213193227U - Ultrafiltration device with safety device

Info

Publication number: CN213193227U
Application number: CN202021569949.0U
Authority: CN
Inventors: 刘双凯; 张建忠
Original assignee: Tianjin Shangtuo Environmental Protection Technology Co ltd
Current assignee: Tianjin Shangtuo Environmental Protection Technology Co ltd
Priority date: 2020-07-31
Filing date: 2020-07-31
Publication date: 2021-05-14
Anticipated expiration: 2030-07-31

Abstract

The utility model discloses an ultrafiltration device with a safety device, which comprises an ultrafiltration module and a pipeline; the pipeline comprises a raw water supply branch connected with a water inlet of the ultrafiltration module; a water production branch connected with the water production port of the ultrafiltration module; a water washing back cleaning branch connected with the water producing port of the ultrafiltration module; the water washing back washing branch is connected with a gas washing back washing branch at the water inlet of the ultrafiltration module; a concentrated water port of the ultrafiltration module is connected with a back washing water drainage and/or water drainage branch; a lower drainage branch connected with a water inlet of the ultrafiltration module; the device also comprises a safe pressure relief branch, wherein the safe pressure relief branch is arranged between the water production port of the ultrafiltration module and the water production control valve; the backwashing upper drainage and/or drainage branch, the lower drainage branch and the safety pressure relief branch extend to the drainage ditch. When the pressure abnormally rises, the pressure is automatically released through the safety device, the membrane element and the pipeline of the ultrafiltration device are protected from being damaged by overpressure machinery, the reason of the pressure rise is strived for finding out for equipment maintenance, and the system can be recovered for use after measures are taken.

Description

Ultrafiltration device with safety device

Technical Field

The utility model belongs to the technical field of ultrafiltration water handles, especially, relate to an ultrafiltration device with safety device.

Background

Ultrafiltration is a membrane process between microfiltration and nanofiltration with membrane pore sizes between 0.05um and 1 nm. Ultrafiltration is a membrane separation technology capable of purifying, separating and concentrating a solution, and the operation process of an ultrafiltration device can be generally understood as a screening process related to the pore size of a membrane. The pressure difference between two sides of the membrane is used as a driving force, the ultrafiltration membrane is used as a filtering medium, and only water and small molecular substances with the pore diameter smaller than that of the membrane are allowed to pass through when water flows through the surface of the membrane under certain pressure, so that the aims of purifying, separating and concentrating the solution are fulfilled. The method is mainly used for separating macromolecules, colloids and particles in the solution, and has the separation characteristics of high efficiency and low energy consumption. With the continuous development of membrane materials and membrane processes in recent years, ultrafiltration technology is widely applied to the treatment of municipal water supply, tannery wastewater, electroplating wastewater, textile printing and dyeing wastewater, slaughter wastewater and food wastewater and other various industrial fields and scientific researches. When the existing ultrafiltration module operates, the following problems can occur when the water inlet pressure instantly rises to exceed the designed operating pressure due to reasons;

1. when the water inlet pressure rises instantly to exceed the designed operation pressure due to reasons, the water hammer phenomenon is easy to generate, and the membrane wires and the PVC pipeline are damaged mechanically;

2. when the air inlet pressure instantaneously rises to exceed the designed operating pressure due to reasons, an air hammer appears, and the membrane yarn and the PVC pipeline are mechanically damaged;

3. when the internal pressure of the ultrafiltration equipment exceeds the design pressure due to the fact that the water-producing pneumatic valve cannot be opened in time, water leakage is generated at each interface of the equipment.

SUMMERY OF THE UTILITY MODEL

To the problems existing in the prior art, the utility model provides a simple structure, safe and reliable's ultrafiltration device with safety device.

The utility model is realized in such a way that the ultrafiltration device with the safety device comprises an ultrafiltration module and a pipeline; the method is characterized in that: the pipeline comprises a raw water supply branch connected with a water inlet of the ultrafiltration module, and the raw water supply branch sequentially comprises a raw water pump connected with a water source and a raw water inlet control valve; the water production branch is connected with the water production port of the ultrafiltration module, and the water production branch sequentially comprises a water production control valve and a check valve which are connected with the water production port of the ultrafiltration membrane module; the washing back cleaning branch is connected with a water outlet of the ultrafiltration module and sequentially comprises a backwashing water pump and a backwashing water control valve which are connected with a water source; the water washing back washing branch is connected with a gas washing back washing branch of the water inlet of the ultrafiltration module, and the gas washing back washing branch comprises a pneumatic control valve, a manual control valve and a check valve which are connected with a high-pressure air source; the back-washing water draining and/or draining branch comprises a pressure gauge, an upper draining valve and an upper draining control valve which are connected with the concentrated water port of the ultrafiltration module in sequence; the lower drainage branch is connected with a water inlet of the ultrafiltration module and sequentially comprises a lower exhaust valve and a lower control valve which are connected with a water inlet of the ultrafiltration membrane component; the pressure relief device comprises an ultrafiltration module, a water production control valve, a safety pressure relief branch and a pressure relief branch, wherein the safety pressure relief branch is arranged between the ultrafiltration module water production port and the water production control valve and sequentially comprises a pressure gauge and a safety pressure relief device which are connected with the ultrafiltration module water production port; the backwashing upper drainage and/or drainage branch, the lower drainage branch and the safety pressure relief branch extend to the drainage ditch.

In the above technical scheme, preferably, the safety pressure relief device adopts a pressure relief valve, and a water outlet of the pressure relief valve extends to a drainage ditch.

In the above technical scheme, preferably, the safety pressure relief device is a disposable blasting safety pressure relief device, and the disposable blasting safety pressure relief device comprises a clamp and a rupture disk installed in the clamp for calibrating the blasting pressure.

The utility model has the advantages and technological effect: due to the adoption of the technical scheme, when the pressure abnormally rises, the pressure is automatically released through the safety device, the membrane element and the pipeline of the ultrafiltration device are protected from being damaged by overpressure machinery, the reason of the pressure rise is strived for equipment maintenance, and the system can be recovered for use after measures are taken. Additionally, the utility model discloses still have simple structure, reasonable in design, realize convenient and with low costs, need not advantages such as field operation.

Drawings

Fig. 1 is a schematic diagram of the present invention.

In the figure, 1, an ultrafiltration module; 2. a raw water supply branch; 2-1, a raw water pump; 2-2, a raw water inlet control valve; 3. a water production branch; 3-1, a water production control valve; 3-2, check valve; 4. washing a back cleaning branch; 4-1, backwashing a water pump; 4-2, a backwashing water control valve; 5. a gas washing back washing branch; 5-1, a pneumatic control valve; 5-2, a manual control valve; 5-3, check valve; 6. back washing upper drainage and/or drainage branch; 6-1, pressure gauge; 6-2, an upper drain valve; 6-3, an upper row control valve; 7. a lower drainage branch; 7-1, a lower emptying valve; 7-2, a lower discharge control valve; 8. a safety pressure relief branch; 8-1, pressure gauge; 8-2, a full pressure relief device; 9. and (7) a drainage ditch.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1, an ultrafiltration device with a safety device includes an ultrafiltration module 1 and a pipeline; the pipeline comprises a raw water supply branch 2 connected with a water inlet of the ultrafiltration module, the raw water supply branch sequentially comprises a raw water pump 2-1 connected with a water source and a raw water inlet control valve 2-2, and the raw water inlet control valve adopts a pneumatic control valve; a water production branch 3 connected with a water production port of the ultrafiltration module, wherein the water production branch sequentially comprises a water production control valve 3-1 and a check valve 3-2 connected with the water production port of the ultrafiltration membrane module, and the water production control valve adopts a pneumatic control valve; a water washing back cleaning branch 4 connected with a water outlet of the ultrafiltration module, wherein the water washing back cleaning branch sequentially comprises a back washing water pump 4-1 connected with a water source and a back washing water control valve 4-2, and the back washing water control valve adopts a pneumatic control valve; the water washing back washing branch is connected with a gas washing back washing branch 5 of a water inlet of the ultrafiltration module, and the gas washing back washing branch comprises a pneumatic control valve 5-1, a manual control valve 5-2 and a check valve 5-3 which are connected with a high-pressure air source; the concentrated water outlet of the ultrafiltration module is connected with a backwashing water drainage and/or drainage branch 6, the backwashing water drainage and/or drainage branch sequentially comprises a pressure gauge 6-1, an upper drainage valve 6-2 and an upper drainage control valve 6-3 which are connected with the concentrated water outlet of the ultrafiltration module, and the upper drainage control valve adopts a pneumatic control valve; a lower drainage branch 7 connected with a water inlet of the ultrafiltration module, wherein the lower drainage branch sequentially comprises a lower exhaust valve 7-1 and a lower control valve 7-2 which are connected with a water inlet of the ultrafiltration membrane module; the pressure relief device also comprises a safety pressure relief branch 8, wherein the safety pressure relief branch is arranged between the water production port of the ultrafiltration module and the water production control valve, and the safety pressure relief branch sequentially comprises a pressure gauge 8-1 and a safety pressure relief device 8-2 which are connected with the water production port of the ultrafiltration module; the backwashing upper drain and/or drain branch, the lower drain branch and the safety pressure relief branch extend to a drain 9.

Due to the adoption of the technical scheme, when the pressure abnormally rises, the pressure is automatically released through the safety device, the membrane element and the pipeline of the ultrafiltration device are protected from being damaged by overpressure machinery, the reason of the pressure rise is strived for equipment maintenance, and the system can be recovered for use after measures are taken. Additionally, the utility model discloses still have simple structure, reasonable in design, realize convenient and with low costs, need not advantages such as field operation.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention, such as some pressure gauges added for safety monitoring operation, etc., are possible; all should be included within the scope of the present invention.

Claims

1. An ultrafiltration device with a safety device comprises an ultrafiltration module and a pipeline; the method is characterized in that: the pipeline comprises a raw water supply branch connected with a water inlet of the ultrafiltration module, and the raw water supply branch sequentially comprises a raw water pump connected with a water source and a raw water inlet control valve; the water production branch is connected with the water production port of the ultrafiltration module, and the water production branch sequentially comprises a water production control valve and a check valve which are connected with the water production port of the ultrafiltration membrane module; the washing back cleaning branch is connected with a water outlet of the ultrafiltration module and sequentially comprises a backwashing water pump and a backwashing water control valve which are connected with a water source; the water washing back washing branch is connected with a gas washing back washing branch of the water inlet of the ultrafiltration module, and the gas washing back washing branch comprises a pneumatic control valve, a manual control valve and a check valve which are connected with a high-pressure air source; the back-washing water draining and/or draining branch comprises a pressure gauge, an upper draining valve and an upper draining control valve which are connected with the concentrated water port of the ultrafiltration module in sequence; the lower drainage branch is connected with a water inlet of the ultrafiltration module and sequentially comprises a lower exhaust valve and a lower control valve which are connected with a water inlet of the ultrafiltration membrane component; the pressure relief device comprises an ultrafiltration module, a water production control valve, a safety pressure relief branch and a pressure relief branch, wherein the safety pressure relief branch is arranged between the ultrafiltration module water production port and the water production control valve and sequentially comprises a pressure gauge and a safety pressure relief device which are connected with the ultrafiltration module water production port; the backwashing upper drainage and/or drainage branch, the lower drainage branch and the safety pressure relief branch extend to the drainage ditch.

2. Ultrafiltration device with safety device according to claim 1, characterized in that: the safety pressure relief device adopts a pressure relief valve, and a water outlet of the pressure relief valve extends to a drainage ditch.

3. Ultrafiltration device with safety device according to claim 1, characterized in that: the safety pressure relief device is a disposable blasting safety pressure relief device, and the disposable blasting safety pressure relief device comprises a clamping part and a blasting piece which is arranged in the clamping part and used for calibrating the blasting pressure.