Multifunctional diaphragm test bench

Abstract

The utility model discloses a multifunctional diaphragm test bench. Relates to diaphragm preparation equipment. Comprising a raw water tank a and a raw water tank b which are separately arranged; the raw water pump pressurizes the solution flowing into the raw water tank a or the raw water tank b through an electric three-way valve; the plurality of membrane pool units are used for enabling the pressurized solution to flow into the membrane pool units through corresponding membrane pool control valves respectively; a membrane mounting position is arranged in the membrane pool unit, a solution flows out from a pure water opening in the top of the membrane pool unit after passing through the membrane, and concentrated water flows into the raw water tank a and / or the raw water tank b through a water return valve. The water return valve comprises a raw water tank a water return valve corresponding to the raw water tank a; and the water return valve of the raw water tank b corresponds to the raw water tank b. According to the utility model, the membrane pool can be independently controlled, and the machine does not need to be stopped when samples are changed; and rapid switching of two kinds of test liquid can be realized.

Description

Technical Field

[0001] The utility model relates to diaphragm preparation equipment, in particular to a multifunctional diaphragm test bench. Background Art

[0002] There are many variables in the reverse osmosis membrane production process that affect the final membrane performance, so it is necessary to conduct sampling tests at a certain interval and make timely adjustments based on the test results to ensure the stability of the membrane performance. Each time a sampling test is performed, the test bench needs to be shut down, loaded with samples, and restarted, which affects the test efficiency. Utility Model Content

[0003] In view of the above problems, the utility model provides a multifunctional diaphragm test bench with a compact and reasonable structure and improved test efficiency and convenience.

[0004] The technical solution of the utility model is:

[0005] Multifunctional diaphragm test bench, comprising:

[0006] A raw water tank, comprising a raw water tank a and a raw water tank b which are separated and arranged;

[0007] The raw water pump pressurizes the solution flowing into the raw water tank a or raw water tank b through the electric three-way valve;

[0008] The membrane pool unit is provided with several ones, and the pressurized solution flows into the membrane pool unit through the corresponding membrane pool control valves respectively; the membrane pool unit is provided with a diaphragm installation position, and the solution flows out from the pure water outlet at the top of the membrane pool unit after passing through the diaphragm, and the concentrated water flows into the raw water tank a and / or raw water tank b through the return valve.

[0009] Specifically, the water return valve comprises:

[0010] A return valve of the raw water tank a, corresponding to the raw water tank a;

[0011] The return valve of the raw water tank b corresponds to the raw water tank b.

[0012] Specifically, the return valve is connected to the end of the membrane pool unit through a return pipe.

[0013] Specifically, a cleaning valve is provided on the return water pipe.

[0014] Specifically, a flow meter is provided on the return water pipe.

[0015] Specifically, a pressure regulating valve is provided on the return water pipeline.

[0016] Specifically, the membrane pool unit includes at least two membrane pools.

[0017] Specifically, a pressure gauge is provided between the raw water pump and the membrane pool unit.

[0018] Specifically, the raw water tank is provided with a heat-insulating layer separated from the raw water tank a and the raw water tank b.

[0019] Specifically, a circulating water inlet valve and a circulating water outlet valve are provided on the thermal insulation layer.

[0020] The utility model includes a raw water tank, a raw water pump and a membrane pool unit connected in sequence; the solution flowing into the raw water tank a or raw water tank b is pressurized through an electric three-way valve; the pressurized solution flows into the membrane pool unit through a corresponding membrane pool control valve; a diaphragm installation position is provided in the membrane pool unit, and the solution flows out from the pure water port at the top of the membrane pool unit after passing through the diaphragm, and the concentrated water flows into the raw water tank a and / or raw water tank b through the return valve. The case can control the membrane pool separately, and there is no need to stop the machine when changing samples; and the rapid switching of two test solutions can be realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the principle of the utility model.

[0022] Figure 2 It is a three-dimensional structural diagram of the test bench;

[0023] In the figure, 101 is a flow meter, 102 is a switching switch, 103 is a pressure gauge, 104 is a raw water temperature display, 105 is a raw water TDS display, 106 is a membrane pool, 107 is a start switch, 108 is a pressure regulating valve, 109 is a moving roller, 110 is a circulating water inlet valve, 111 is a circulating water outlet valve, 112 is an electric three-way valve, 113 is a raw water pump, 114 is a raw water tank a, 115 is a raw water tank b, 116 is an overflow port, 117 is a membrane pool control valve, 118 is a cleaning valve, 119 is a raw water tank a return valve, 120 is a raw water tank b return valve, 121 is a pure water port, 122 is a concentrated water pipe, and 123 is a water inlet pipe. DETAILED DESCRIPTION

[0024] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0025] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "vertical", "horizontal", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] Nanofiltration membranes are usually measured by the retention rate of sodium chloride and magnesium sulfate ions. In this case, raw water tanks a114 and b115 are usually added with corresponding sodium chloride solutions and magnesium sulfate solutions. The solutions added during actual use can be replaced according to customer testing requirements.

[0028] Reference below Figure 1-2 Describe the utility model;

[0029] Multifunctional diaphragm test bench, comprising:

[0030] A raw water tank, including a raw water tank a114 and a raw water tank b115 which are separated and arranged;

[0031] The raw water pump 113 pressurizes the solution flowing into the raw water tank a114 or the raw water tank b115 through the electric three-way valve 112 (or referred to as the switching switch 102); the switching switch 102 is used to switch the water inlet of the raw water tank a114 or b;

[0032] There are several membrane pool units, and the pressurized solution flows into the membrane pool unit through the corresponding membrane pool control valve 117; the membrane pool unit is provided with a diaphragm installation position, and the solution flows out from the pure water port 121 at the top of the membrane pool unit after passing through the diaphragm, and the concentrated water flows into the raw water tank a114 and / or raw water tank b115 through the return valve. Figure 1 As shown, there are four membrane pool control valves 117 in this case, each of which controls two membrane pools 106. By closing the membrane pool control valve 117, the corresponding membrane pool 106 can be replaced without stopping the machine.

[0033] It is further defined that the backwater valve comprises:

[0034] The return valve 119 of the raw water tank a corresponds to the raw water tank a114;

[0035] The raw water tank b return valve 120 corresponds to the raw water tank b 115 .

[0036] In this case, the return valve is connected to the end of the membrane pool unit through the return pipe ( Figure 1 middle right side) connection.

[0037] The return water pipeline may be additionally provided with a cleaning valve 118 , a flow meter 101 (connected to the concentrated water side to display the concentrated water flow) and / or a pressure regulating valve 108 .

[0038] The pressure regulating valve 108 is connected to the concentrated water side and adjusts the pressure by adjusting the concentrated water flow rate.

[0039] like Figure 1 As shown, the cleaning valve 118 is arranged at the end of the concentrated water pipe 122. When switching the raw water tank, first close the raw water tank return valve, open the cleaning valve 118, and after running for 3 minutes, close the cleaning valve 118 and open the corresponding raw water tank return valve to ensure that different raw water tanks will not contaminate each other.

[0040] It is further defined that the membrane tank unit includes at least two membrane tanks 106 .

[0041] A pressure gauge 103 is provided between the raw water pump 113 and the membrane pool unit. The pressure gauge 103 is connected to the rear side of the raw water pump 113 to display the inlet water pressure.

[0042] A water inlet and a concentrate outlet are provided at the bottom of the membrane pool 106 , and a pure water outlet 121 is provided at the top; the water inlet is connected to a water inlet pipe 123 , and the concentrate outlet is connected to a concentrate pipe 122 .

[0043] For further optimization, the raw water tank is provided with an insulation layer separated from the raw water tank a114 and the raw water tank b115.

[0044] A circulating water inlet valve 110 and a circulating water outlet valve 111 are provided on the insulation layer to ensure the temperature of the test liquid in the raw water tank a114 and the raw water tank b115 through constant temperature water circulation.

[0045] The test bench of this case is provided with an overflow port 116, which is located at a low-lying part of the test bench surface and is used to drain the water accumulated on the table. A plurality of movable rollers 109 are provided at the bottom of the test bench for easy movement.

[0046] The workflow of this case is:

[0047] Step S100, close the cleaning valve 118 and the return valve 120 of the original water tank b; the circulating water inlet valve 110 and the outlet valve are connected to the constant temperature water circulation;

[0048] Step S200, loading the membrane into the membrane pool 106;

[0049] Step S300, add the test liquid a and the test liquid b into the corresponding raw water tanks a and b respectively, adjust the switch 102 to the raw water tank a114 to inlet water, open the raw water tank a return valve 119; and wash the temperature sensor and the TDS sensor (the test bench is provided with a raw water temperature display meter 104 and a raw water TDS display meter 105 connected thereto) and put them into the raw water tank a114;

[0050] Step S400, turning on the start switch 107, and adjusting the pressure regulating valve 108 to make the pressure reach the required value for the test;

[0051] Step S500, receiving water at the pure water inlet 121 of the membrane pool 106, and testing the pure water TDS and flow rate;

[0052] When sample change is required:

[0053] Close the corresponding membrane pool control valve 117 to change the sample. After the sample change is completed, open the corresponding membrane pool control valve 117 to continue the test.

[0054] When the test fluid needs to be replaced:

[0055] Open the cleaning valve 118, close the return valve 119 of the raw water tank a, rotate the switching switch 102, switch to the raw water tank b115 for water inlet, clean the temperature and TDS sensors and put them into the raw water tank b115, after running for 3 minutes, open the return valve 120 of the raw water tank b, and close the cleaning valve 118.

[0056] Regarding the contents disclosed in this case, there are a few points that need to be explained:

[0057] (1) The drawings of the embodiments disclosed in this case only involve the structures involved in the embodiments disclosed in this case. Other structures can refer to the general design;

[0058] (2) In the absence of conflict, the embodiments and features of the embodiments disclosed in this case may be combined with each other to obtain new embodiments;

[0059] The above are only specific implementation methods disclosed in this case, but the protection scope of the present disclosure is not limited thereto. The protection scope disclosed in this case should be based on the protection scope of the claims.

Claims

1. Multifunctional diaphragm test bench, characterized in that: Includes the following connected in sequence: A raw water tank, comprising a raw water tank a and a raw water tank b which are separated and arranged; The raw water pump pressurizes the solution flowing into the raw water tank a or raw water tank b through the electric three-way valve; The membrane pool unit is provided with several ones, and the pressurized solution flows into the membrane pool unit through the corresponding membrane pool control valves respectively; the membrane pool unit is provided with a diaphragm installation position, and the solution flows out from the pure water outlet at the top of the membrane pool unit after passing through the diaphragm, and the concentrated water flows into the raw water tank a and / or raw water tank b through the return valve.

2. The multifunctional diaphragm test bench according to claim 1, characterized in that: The return valve comprises: A return valve of the raw water tank a, corresponding to the raw water tank a; The return valve of the raw water tank b corresponds to the raw water tank b.

3. The multifunctional diaphragm test bench according to claim 1 or 2, characterized in that: The return valve is connected to the end of the membrane pool unit through a return pipe.

4. The multifunctional diaphragm test bench according to claim 3, characterized in that: A cleaning valve is provided on the return water pipeline.

5. The multifunctional diaphragm test bench according to claim 3, characterized in that: A flow meter is arranged on the return water pipeline.

6. The multifunctional diaphragm test bench according to claim 3, characterized in that: The return water pipeline is provided with a pressure regulating valve.

7. The multifunctional diaphragm test bench according to claim 1, characterized in that: The membrane pool unit includes at least two membrane pools.

8. The multifunctional diaphragm test bench according to claim 1, characterized in that: A pressure gauge is provided between the raw water pump and the membrane pool unit.

9. The multifunctional diaphragm test bench according to claim 1, characterized in that: The raw water tank is provided with a heat-insulating layer separated from the raw water tank a and the raw water tank b.

10. The multifunctional diaphragm test bench according to claim 9, characterized in that: A circulating water inlet valve and a circulating water outlet valve are arranged on the thermal insulation layer.

Images