Modular large-scale ultrafiltration equipment

Abstract

The utility model relates to modular large-scale ultrafiltration equipment, which comprises at least two ultrafiltration skid blocks arranged side by side, an inlet side control screen skid block connected with the water inlet side of each ultrafiltration skid block, and an outlet side control screen skid block connected with the water outlet side of each ultrafiltration skid block, the inlet side control panel skid is provided with a water inlet main pipe which is used for being in butt joint with at least two water inlets of the at least two ultrafiltration skid blocks respectively, the outlet side control panel skid is provided with a water producing main pipe and a concentrated water main pipe corresponding to each ultrafiltration skid block, and the inner diameters of the water inlet main pipe, the water producing main pipe and the concentrated water main pipe are the same. According to the utility model, as the modular structure is split and the ultrafilters are grouped, the pipe diameters of the mother pipes are the same, the height is reduced, the design and the change are convenient, the transportation and the field assembly are facilitated, and the raw material and the production cost are greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrafiltration equipment, in particular to a large-scale ultrafiltration equipment. Background Art

[0002] Large-scale ultrafiltration equipment usually refers to large-scale equipment with more than 40 ultrafilters. Existing large-scale ultrafiltration equipment are all single-pipe controlled, that is, for all ultrafiltration equipment with more than about 40 ultrafilters, there are only three mother pipes involved in backwashing, namely the backwash inlet mother pipe (i.e. the water production mother pipe in the normal water production process), the backwash upper row mother pipe (i.e. the concentrated water mother pipe in the normal water production process) and the backwash lower row mother pipe (i.e. the water inlet mother pipe in the normal water production process). That is to say, in an existing large-scale ultrafiltration equipment, the backwash inlet mother pipe, the backwash upper row mother pipe and the backwash lower row mother pipe are all single-pipe controlled, that is: all ultrafilters in an existing large-scale ultrafiltration equipment share a backwash inlet mother pipe for water intake during backwashing, a backwash upper row mother pipe for draining the waste water after cleaning, and a backwash lower row mother pipe for draining the waste water after cleaning.

[0003] Since the backwash water volume of the ultrafilter needs to be twice the water volume during the production process, the diameters of the backwash inlet main pipe, the upper backwash main pipe, and the lower backwash main pipe in existing large-scale ultrafiltration equipment need to be set larger. Only in this way can all parallel ultrafilters be backwashed at the same time. However, this also causes the diameter of the water inlet main pipe to be set much larger than actually needed during normal water production.

[0004] Take the existing single-pipe large-scale ultrafiltration equipment with 40 UFIA225L ultrafilters as an example. The diameters of the backwash inlet main pipe, the backwash upper row main pipe and the backwash lower row main pipe are all required to be DN250 (¢280mm). The elevation of the diameter center O1 of these main pipes is 140mm (half of 280mm), while the height of the water inlet center of the UFIA225L ultrafilter A (not shown) is actually only 95mm. It can be seen that the height of the main pipe diameter center (140mm) has exceeded the height of the ultrafilter water inlet center (95mm). Therefore, the ultrafilter needs to be raised by 45mm to make the ultrafilter water inlet center flush with the DN250 (¢280mm) pipe diameter center O1. Figure 1 shown.

[0005] The above-mentioned existing single-pipe large-scale ultrafiltration equipment has the following shortcomings: 1) The diameters of the backwash inlet main pipe, the backwash upper row main pipe and the backwash lower row main pipe are all configured to be very large, which increases the cost of raw materials; 2) Due to the large diameters of the above-mentioned main pipes, the ultrafilter is raised, resulting in an increase in the height of the entire ultrafiltration equipment, which brings considerable challenges to the transportation and installation space of the equipment; 3) Since the existing large-scale ultrafiltration equipment is a single-pipe, all its ultrafilters are assembled into a whole for transportation and use, and the transportation process is relatively cumbersome and inconvenient. Utility Model Content

[0006] In order to overcome the above-mentioned defects, the utility model provides a modular large-scale ultrafiltration device which can be designed and processed in a modular manner and is convenient for dispersed transportation and on-site assembly.

[0007] To achieve the above-mentioned purpose, the utility model provides a modular large-scale ultrafiltration equipment, which includes at least two ultrafiltration skids arranged side by side, an inlet control screen skid connected to the water inlet side of each ultrafiltration skid, and an outlet control screen skid connected to the water outlet side of each ultrafiltration skid, wherein each ultrafiltration skid includes multiple ultrafilters connected in parallel, and the inlet control screen skid is provided with a water inlet mother pipe having at least two water inlets for respectively connecting to the at least two ultrafiltration skids, and the outlet control screen skid is provided with a water producing mother pipe and a water concentrating mother pipe corresponding to each ultrafiltration skid, and the inner diameters of the water inlet mother pipe, the water producing mother pipe and the water concentrating mother pipe are the same.

[0008] Furthermore, the number of ultrafilters included in each ultrafiltration skid is the same or different.

[0009] Furthermore, the inlet control screen skid includes an inlet control screen bracket, and the water inlet mother pipe is installed on the inlet control screen bracket; the outlet control screen skid includes an outlet control screen bracket, and the water production mother pipe and the concentrated mother pipe are installed on the outlet control screen bracket.

[0010] Furthermore, the inner diameters of the water inlet tube, the water production tube and the concentrated water tube are all set to 150 mm.

[0011] Furthermore, each ultrafiltration skid includes no more than 20 ultrafilters.

[0012] Furthermore, the inner diameters of the water inlet tube, the water production tube and the concentrated water tube are all set to 200 mm.

[0013] Furthermore, each ultrafiltration skid includes no more than 36 ultrafilters.

[0014] Furthermore, a cleaning mother pipe is installed on the inlet control panel bracket, and the cleaning mother pipe has at least two cleaning ports for respectively connecting at least two ultrafiltration skids, and the inner diameter of the cleaning mother pipe is the same as the inner diameter of the water inlet mother pipe.

[0015] Furthermore, an air inlet pipe is installed on the inlet control panel bracket; a produced water cleaning return pipe and a concentrated water cleaning return pipe are installed on the outlet control panel bracket corresponding to each ultrafiltration skid, and the inner diameters of the produced water cleaning return pipe and the concentrated water cleaning return pipe are the same as the inner diameter of the cleaning main pipe.

[0016] Furthermore, each ultrafiltration skid comprises an ultrafiltration bracket, one end of which is connected to the inlet control screen bracket and the other end of which is connected to the outlet control screen bracket.

[0017] Compared with the prior art, the utility model has the following advantages: 1) By dividing all ultrafilters of a large ultrafiltration device into two or more groups, backwashing can be performed in groups, so that the inner diameter of the mother tube can be reduced, thereby reducing the cost of raw materials; 2) Since the inner diameter of the mother tube is reduced, there is no need to raise the height of the ultrafilter, that is, the installation height of the ultrafilter is lower, thereby reducing the height and cost of the entire equipment, and also reducing the space requirements during transportation and at the installation site; 3) Since the utility model is divided into four modules, modular design and processing can be performed, and decentralized transportation and on-site assembly can be performed, greatly reducing the production cost of each link.

[0018] These and other aspects of the present invention will be more clearly explained by referring to the embodiments described below. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The structure and further objects and advantages of the present invention will be better understood through the following description in conjunction with the accompanying drawings, in which the same reference numerals identify the same elements:

[0020] Figure 1 It is a schematic front view of an existing large-scale ultrafiltration device;

[0021] Figure 2 It is a three-dimensional structural schematic diagram of a modular large-scale ultrafiltration device according to a specific embodiment of the utility model;

[0022] Figure 3 yes Figure 2 The schematic diagram of the three-dimensional decomposition of the modular large-scale ultrafiltration equipment into four skids is shown;

[0023] Figure 4 yes Figure 2 A side view of a pair of ultrafiltration skids of a modular large ultrafiltration device as viewed from the inlet control screen skid. DETAILED DESCRIPTION

[0024] The specific implementation of the present utility model will be described below in conjunction with the accompanying drawings.

[0025] In this document, directional expressions such as "upper", "lower", etc., used to explain the structure and / or movement of the various parts of the disclosed embodiments are not absolute, but relative. These expressions are appropriate when the various parts of the disclosed embodiments are located in the positions shown in the figures, and if the position or reference system of the disclosed embodiments changes, these expressions should also change according to the change of the position or reference system of the disclosed embodiments.

[0026] like Figures 2 to 4 As shown, a modular large-scale ultrafiltration device 100 according to a specific embodiment of the utility model comprises two ultrafiltration skids 1 arranged side by side, an inlet control screen skid 3 connected to the water inlet side of each ultrafiltration skid 1, and an outlet control screen skid 5 connected to the water outlet side of each ultrafiltration skid 1. Each ultrafiltration skid 1 comprises 20 ultrafilters 11 connected in parallel; an inlet mother pipe 31 is arranged on the inlet control screen skid 3, and the inlet mother pipe 31 has two water inlets 32 for connecting the two ultrafiltration skids 1 respectively; a water production mother pipe 51 and a concentrated water mother pipe 53 are arranged on the outlet control screen skid 5 corresponding to each ultrafiltration skid 1, and the inner diameters of the inlet mother pipe 31, the water production mother pipe 51 and the concentrated water mother pipe 53 are the same.

[0027] Specifically, in this embodiment, the inner diameters of the water inlet mother pipe 31, the water production mother pipe 51 and the concentrated water mother pipe 53 are all set to 150 mm (of course, other sizes can be selected in other embodiments), and each ultrafiltration skid 1 includes 20 ultrafilters 11, and the entire device includes 40 ultrafilters (225L ultrafilters in this embodiment). Of course, if the entire device requires more ultrafilters, three or more ultrafiltration skids 1 can be configured, and each ultrafiltration skid 1 includes 20 ultrafilters. It should be understood that, depending on the actual number of ultrafilters required, the number of ultrafilters 11 included in each ultrafiltration skid 1 can be the same or different. In this way, the design and production of the ultrafiltration skid 1 are greatly facilitated. For example, when 38 ultrafilters are required, only two ultrafilters need to be reduced on one ultrafiltration skid.

[0028] In practice, for a mother pipe with an inner diameter of 150 mm, each ultrafiltration skid 1 usually includes no more than 20 ultrafilters 11, that is, a maximum of 20 ultrafilters are configured. However, if the inner diameter of the mother pipe changes, for example, when the inner diameters of the water inlet mother pipe 31, the water production mother pipe 51 and the concentrated water mother pipe 53 are 200 mm, each ultrafiltration skid can include a maximum of 36 ultrafilters. For example, when the ultrafiltration equipment requires 60 ultrafilters, a 150 mm mother pipe can be used, three ultrafiltration skids can be configured, and each ultrafiltration skid can be configured with 20 ultrafilters. A 200 mm mother pipe can also be used, two ultrafiltration skids can be configured, and each ultrafiltration skid can be configured with 30 ultrafilters. Of course, mother pipes with inner diameters of other sizes can also be used, and the number of ultrafiltration skids and the number of ultrafilters in each ultrafiltration skid should be adjusted accordingly according to actual conditions.

[0029] like Figure 2 and Figure 3As shown clearly, the inlet control screen skid 3 includes an inlet control screen bracket 30, and the water inlet mother pipe 31 is installed on the inlet control screen bracket 30; the outlet control screen skid 5 includes an outlet control screen bracket 50, and the water production mother pipe 51 and the concentrated water mother pipe 53 are installed on the outlet control screen bracket 50. Of course, it should be understood that in this embodiment, each ultrafiltration skid 1 is also correspondingly provided with an inlet mother pipe 131, a water production mother pipe 151 and a concentrated water mother pipe 153, as shown in FIG. Figure 3 The two water inlets 32 of the water inlet main pipe 31 are connected and communicated with the water inlet main pipes 131 on the two ultrafiltration skids 1. Of course, the water inlet main pipe 131 on the ultrafiltration skid 1 also plays the role of normal washing water inlet when the equipment is normal washing.

[0030] like Figure 3 As shown clearly, each ultrafiltration skid 1 includes an ultrafiltration bracket 10, one end of which is fixedly connected to the inlet control screen 3 bracket via screws 2, and the other end is fixedly connected to the outlet control screen bracket 5 via screws 4, which greatly facilitates on-site assembly. It should be understood that during on-site assembly, the connection between each mother pipe on the inlet control screen skid 3 and the corresponding mother pipe on the ultrafiltration skid 1 can be through a quick connector, and the mother pipe connection between the outlet control screen skid 5 and the ultrafiltration skid 1 is similar.

[0031] For example Figure 3 As shown, a cleaning mother pipe 33 is also installed on the inlet control panel bracket 3. In this embodiment, the cleaning mother pipe 33 and the water inlet mother pipe 31 share a water supply mother pipe, one end of which is equipped with a water inlet electric valve 310, and the other end is equipped with a cleaning water inlet valve 330. When water is produced normally, the water inlet electric valve 310 is opened and the cleaning water inlet valve 330 is closed, and the water supply mother pipe is the water inlet mother pipe. On the contrary, when washing, the water inlet electric valve 310 is closed and the cleaning water inlet valve 330 is opened, and the water supply mother pipe is the cleaning mother pipe 33. The two water inlets 32 of the water inlet mother pipe 31 constitute the two cleaning ports of the cleaning mother pipe 33 for connecting the two ultrafiltration skids 1 respectively. Of course, the inner diameter of the cleaning mother pipe 33 is the same as the inner diameter of the water inlet mother pipe 31.

[0032] For example Figure 2 and Figure 3As shown, the inlet control panel bracket 3 is also equipped with an air inlet pipe 35 (on which an air inlet electric valve 350 is arranged) for air washing; the outlet control panel bracket 5 is also equipped with a produced water cleaning return pipe 55 and a concentrated water cleaning return pipe 57 corresponding to each ultrafiltration skid 1, and the inner diameters of the produced water cleaning return pipe 55 and the concentrated water cleaning return pipe 57 are the same as the inner diameter of the cleaning mother pipe 33. It should be understood that in this embodiment, the produced water cleaning return pipe 55 and the concentrated water cleaning return pipe 57 are respectively connected to the produced water mother pipe 51 and the concentrated water mother pipe 53 and have the same inner diameter. It should be noted that cleaning is positive cleaning. When the equipment is performing positive cleaning, water enters through the cleaning main pipe 33, enters each ultrafilter 11 through the water inlet main pipe 131 on the ultrafiltration skid 1 for positive cleaning, and then the produced water flows out through the produced water main pipe 51 and the produced water cleaning return pipe 55 connected to the produced water main pipe 51 (on which a produced water cleaning return valve 550 is provided), and the concentrated water flows out through the concentrated water main pipe 53 and the concentrated water cleaning return pipe 57 connected to the concentrated water main pipe 53 (on which a concentrated water cleaning return valve 570 is provided).

[0033] It should be noted that, in this embodiment, Figure 2 and Figure 3 As shown, in the normal water production process, the supply water enters each ultrafiltration device 11 through the water inlet mother pipe 31 on the inlet control screen skid 3 and the water inlet mother pipe 131 on each ultrafiltration skid 1, the produced water flows out through the produced water mother pipe 151 on each ultrafiltration skid 1 and the produced water outlet of the produced water mother pipe 51 on the outlet control screen skid 5 (not shown in the figure, on which a produced water electric valve 510 is arranged), and the concentrated water flows out through the concentrated water mother pipe 153 on each ultrafiltration skid 1 and the concentrated water outlet on the concentrated water mother pipe 53 on the outlet control screen skid 5 (not shown in the figure, on which a concentrated water electric valve 530 is arranged).

[0034] In addition, it should be noted that, in this embodiment, Figure 2 and Figure 3 As shown, when the equipment is backwashed, the produced water enters the produced water mother pipe 151 on each ultrafiltration skid 1 through the backwash inlet electric valve 152, and then enters each ultrafilter 11 for backwashing. The concentrated water after backwashing flows out through the concentrated water mother pipe 153 on each ultrafiltration skid 1 and the upper discharge outlet (on which the upper row electric valve 532 is arranged) on the concentrated water mother pipe 53 on the outlet control screen skid 5. The concentrated water after backwashing can also flow out through the backwash outlet (on which the lower row electric valve 132 is arranged) of the water inlet mother pipe 131 on each ultrafiltration skid 1 at the same time.

[0035] Of course, it should be understood that the device of the present invention also has a discharge port for unqualified water production (not shown in the figure, on which an unqualified water production valve 515 is provided). When the device just starts to produce water but the quality is not yet stable, the water can be discharged through this discharge port first.

[0036] In addition, if Figure 4 As shown, compared with the prior art Figure 1 In this embodiment, since the diameters of the mother tubes are the same, the center E1 of the diameters of these mother tubes is 75mm (half of 150mm), and the height of the center of the water inlet of the ultrafilter 11 (not shown) is actually only 95mm. It can be seen that the center height of the mother tube diameter (140mm) has exceeded the center height of the water inlet of the ultrafilter (95mm), so there is no need to lift the ultrafilter 11.

[0037] In the utility model, by equipping at least two ultrafiltration skids, and equipping each ultrafiltration skid with an inlet mother pipe, a production mother pipe and a concentrated water mother pipe with the same inner diameter, a conventional floor-standing design of the ultrafilter can be realized, the height of the entire equipment is reduced, and convenience is provided for installation and production sites with insufficient height space; at the same time, since the entire equipment is divided into four skids, such splitting, transportation and on-site assembly are particularly beneficial for installation sites with narrow factory gates and transportation channels; in addition, through this modular split design, it is possible to quickly design and adjust according to the customer's special needs for the number of ultrafilters in the equipment, for example, for the standard of 20 ultrafilters per ultrafiltration skid (the inner diameter of the mother pipe is 150mm), the designer can quickly reduce the number of ultrafilters in one skid according to the number of ultrafilters required by the customer, or reduce the number of multiple skids at the same time, or increase ultrafiltration skids as needed.

[0038] The technical content and technical features of the utility model have been disclosed above, but it can be understood that under the creative idea of ​​the utility model, those skilled in the art can make various changes and improvements to the above structure, including the combination of technical features disclosed or claimed separately here, and other combinations that obviously include these features. These deformations and / or combinations all fall within the technical field involved in the utility model and fall within the protection scope of the claims of the utility model.

Claims

1. A modular large-scale ultrafiltration device, characterized in that It comprises at least two ultrafiltration skids arranged side by side, an inlet control screen skid connected to the water inlet side of each ultrafiltration skid, and an outlet control screen skid connected to the water outlet side of each ultrafiltration skid, wherein each ultrafiltration skid comprises a plurality of ultrafilters connected in parallel, the inlet control screen skid is provided with a water inlet mother pipe having at least two water inlets for respectively connecting to the at least two ultrafiltration skids, and the outlet control screen skid is provided with a water producing mother pipe and a water concentrating mother pipe corresponding to each ultrafiltration skid, and the inner diameters of the water inlet mother pipe, the water producing mother pipe and the water concentrating mother pipe are the same.

2. The modular large-scale ultrafiltration equipment according to claim 1, characterized in that: The plurality of ultrafilters included in each of the ultrafiltration skids may be the same or different in number.

3. The modular large-scale ultrafiltration equipment according to claim 1 or 2, characterized in that: The inlet control screen skid comprises an inlet control screen bracket, and the water inlet mother pipe is installed on the inlet control screen bracket; the outlet control screen skid comprises an outlet control screen bracket, and the water production mother pipe and the concentrated water mother pipe are installed on the outlet control screen bracket.

4. The modular large-scale ultrafiltration equipment according to claim 3, characterized in that: The inner diameters of the water inlet mother pipe, the water production mother pipe and the concentrated water mother pipe are all set to 150 mm.

5. The modular large-scale ultrafiltration equipment according to claim 4, characterized in that: Each of the ultrafiltration skids includes no more than 20 ultrafilters.

6. The modular large-scale ultrafiltration equipment according to claim 3, characterized in that: The inner diameters of the water inlet mother pipe, the water production mother pipe and the concentrated water mother pipe are all set to 200 mm.

7. The modular large-scale ultrafiltration device according to claim 6, characterized in that: Each of the ultrafiltration skids includes no more than 36 ultrafilters.

8. The modular large-scale ultrafiltration equipment according to claim 3, characterized in that: The inlet control panel bracket is also provided with a cleaning mother pipe, which has at least two cleaning ports for respectively connecting to the at least two ultrafiltration skids, and the inner diameter of the cleaning mother pipe is the same as the inner diameter of the water inlet mother pipe.

9. The modular large-scale ultrafiltration device according to claim 8, characterized in that: An air inlet pipe is also installed on the inlet control panel bracket; a produced water cleaning return pipe and a concentrated water cleaning return pipe are also installed on the outlet control panel bracket corresponding to each ultrafiltration skid, and the inner diameters of the produced water cleaning return pipe and the concentrated water cleaning return pipe are the same as the inner diameter of the cleaning main pipe.

10. The modular large-scale ultrafiltration equipment according to claim 3, characterized in that: Each of the ultrafiltration skids comprises an ultrafiltration support, one end of the ultrafiltration support is connected to the inlet control screen support, and the other end of the ultrafiltration support is connected to the outlet control screen support.

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