Vacuum filtration system with pressure relief device

Abstract

The utility model provides a vacuum filtration system with a pressure relief device. The vacuum filtration system comprises a vacuum pump, a connecting hose, a conducting device, a filtering device, a liquid container and the pressure relief device, the vacuum pump is connected with the filtering device through a connecting hose and a conducting device; the conducting device is respectively connected with the vacuum pump, the filtering device and the pressure relief device through connecting hoses; and the liquid container is hermetically connected with the filtering device. According to the vacuum filtration system with the pressure relief device, provided by the utility model, the vacuum pump and the filter device are communicated by utilizing the conducting device with a three-way structure, so that direct connection of a connecting hose is avoided, and direct pressure relief can be carried out only by controlling a control valve on the pressure relief device when pressure relief is needed; the working pressure of the vacuum pump can be detected in real time while the pressure relief efficiency is improved, the possibility of pressure leakage is reduced, and economic benefits are improved.

Description

Technical Field

[0001] The utility model relates to a vacuum filtration system with a pressure relief device. Background Art

[0002] Vacuum pump filtration is an effective means of removing impurities from liquids and is widely used in testing work. This device will be used for filtration in the following situations:

[0003] (1) A newly prepared solution contains a small amount of insoluble matter, which does not disappear even after prolonged stirring or slight heating.

[0004] (2) There are insoluble substances in the water sample, and these insoluble substances will affect the experimental results, such as clogging the equipment pipeline. In both cases, a vacuum pump filtration device is required, but the filter screen needs to be cleaned when the filter is in use. After cleaning, pour out the cleaning liquid and then filter. Therefore, the liquid container under the filter device needs to be frequently loaded and unloaded. However, the vacuum pump itself creates a negative pressure inside the liquid container, which makes the connection between the liquid container and the filter device tight and difficult to disassemble manually. Only by removing the hose connected to the vacuum pump and removing the negative pressure in the liquid container can the liquid container be disassembled. In this way, in the laboratory environment, the hose between the vacuum pump and the filter device needs to be repeatedly disassembled, which will not only affect the service life of the hose, but also frequent disassembly will cause the structure between the hose and the filter device to become loose, affecting later use. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a vacuum filtration system with a pressure relief device, aiming to achieve direct pressure relief without removing the connection between the hose and the filtering device, which not only reduces the operating steps of the operator but also effectively protects the service life of the equipment.

[0006] In order to solve the above technical problems, the technical solution of the utility model is: a vacuum filtration system with a pressure relief device, comprising a vacuum pump, a connecting hose, a conducting device, a filtering device, a liquid container and a pressure relief device; the vacuum pump and the filtering device are connected through the connecting hose and the conducting device; the conducting device is respectively connected to the vacuum pump, the filtering device and the pressure relief device through the connecting hose; the liquid container and the filtering device are sealed; the pressure relief device comprises a control valve and a pressure sensor; the control valve is located on the connecting hose and connected to the conducting device; the pressure sensor is located on the connecting hose on one side of the control valve and between the conducting device and the control valve.

[0007] Furthermore, the conduction device is configured as a three-way structure, on which a pressure reading screen is provided, and the pressure reading screen is used to read the pressure value in the conduction device.

[0008] Furthermore, the control valve may adopt a water stop clamp.

[0009] Furthermore, the control valve may be a hydraulic switch valve, and the connecting hose may be opened or closed by a hydraulic switch.

[0010] Furthermore, the pressure release speed in the conduction device is controlled by controlling the opening speed of the control valve, and the pressure reading on the pressure reading screen is compared with the pressure reading of the pressure sensor to judge and control the pressure release speed.

[0011] Furthermore, the pressure reading screen also displays the pressure status of the vacuum pump when it is working normally, and can monitor in real time whether the device is leaking pressure.

[0012] Compared with the prior art, the utility model provides a vacuum filtration system with a pressure relief device, which utilizes a three-way structured conducting device to connect the vacuum pump and the filtering device, thereby avoiding the direct connection of the connecting hose. Therefore, when pressure relief is required, it is only necessary to control the control valve on the pressure relief device to directly relieve the pressure without disassembling the hose. While improving the pressure relief efficiency, the working pressure of the vacuum pump can be detected in real time, reducing the possibility of pressure leakage and improving economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A simplified structural schematic diagram of the utility model is shown.

[0014] Figure 2 The front view of the structural device of the utility model is shown.

[0015] Among them: 1. vacuum pump, 2. connecting hose, 3. conduction device, 4. filtering device, 5. liquid container, 6. pressure relief device, 7. control valve, 8. pressure sensor, 9. pressure reading screen. DETAILED DESCRIPTION

[0016] As shown in the figure, a vacuum filtration system with a pressure relief device includes a vacuum pump 1, a connecting hose 2, a conducting device 3, a filtering device 4, a liquid container 5 and a pressure relief device 6; the vacuum pump 1 and the filtering device 4 are connected through the connecting hose 2 and the conducting device 3; the conducting device 3 is respectively connected to the vacuum pump 1, the filtering device 4 and the pressure relief device 6 through the connecting hose 2; the liquid container 5 and the filtering device are sealed; the pressure relief device 6 includes a control valve 7 and a pressure sensor 8; the control valve 7 is located on the connecting hose 2 and connected to the conducting device 3; the pressure sensor 8 is located on the connecting hose 2 on one side of the control valve 7, and is located between the conducting device 3 and the control valve 7.

[0017] Furthermore, the conduction device 3 is configured as a three-way structure, on which a pressure reading screen 9 is provided. The pressure reading screen 9 is used to read the pressure value in the conduction device 3 .

[0018] Furthermore, the control valve 7 may adopt a water stop clamp, such as Figure 1 As shown, a simple version of the device can be made in the laboratory using a three-way connector and a water stop clamp, and the pressure relief function can be achieved by opening the water stop clamp.

[0019] like Figure 2 As shown, further, the control valve 7 can be a hydraulic switch valve, and the connecting hose 2 is opened or closed by a hydraulic switch.

[0020] Furthermore, the pressure release speed in the conduction device 3 is controlled by controlling the opening speed of the control valve 7, and the pressure reading on the pressure reading screen 9 is compared with the pressure reading of the pressure sensor 8 to judge and control the pressure release speed.

[0021] Furthermore, the pressure reading screen 9 also displays the pressure status of the vacuum pump 1 when it is working normally, and can monitor in real time whether the device is leaking pressure.

[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than a restrictive technical solution. Ordinary technicians in this field should understand that those modifications or equivalent replacements of the technical solution of the utility model without departing from the purpose and scope of the technical solution should be included in the scope of the claims of the utility model.

Claims

1. A vacuum filtration system with a pressure relief device, characterized in that: It includes a vacuum pump, a connecting hose, a conducting device, a filtering device, a liquid container and a pressure relief device; the vacuum pump and the filtering device are connected via the connecting hose and the conducting device; the conducting device is respectively connected to the vacuum pump, the filtering device and the pressure relief device via the connecting hose; the liquid container and the filtering device are sealed; the pressure relief device includes a control valve and a pressure sensor; the control valve is located on the connecting hose and connected to the conducting device; the pressure sensor is located on the connecting hose on one side of the control valve and between the conducting device and the control valve.

2. A vacuum filtration system with a pressure relief device according to claim 1, characterized in that: The conduction device is configured as a three-way structure, on which a pressure reading screen is provided, and the pressure reading screen is used to read the pressure value in the conduction device.

3. A vacuum filtration system with a pressure relief device according to claim 1, characterized in that: The control valve adopts a water stop clamp.

4. A vacuum filtration system with a pressure relief device according to claim 1, characterized in that: The control valve adopts a hydraulic switch valve, and the connecting hose is opened or closed by the hydraulic switch.

Images