A compact small reverse osmosis seawater desalination device

Abstract

The utility model belongs to seawater desalination technical field, concretely relates to a compact small -size reverse osmosis seawater desalination device, including control box and host computer. Control box and host computer are connected through power line and signal line, and the host computer includes frame assembly, high pressure assembly, reverse osmosis membrane group, sensor assembly, the frame assembly adopts plastic material quality, including upper support, lower support and pump support, the lower support upper end is connected with the upper support lower end through first connecting pair, and the upper support upper end is connected with the pump support lower end through second connecting pair, and the first lower support and second lower support are provided with crossbeam, and the crossbeam is connected with first lower support and second lower support respectively through third connecting pair. The utility model novel structure, clever design, frame adopts HDPE material quality, has greatly reduced the whole machine weight while guaranteeing the strength, has reduced the cost.

Description

Technical Field

[0001] This utility model belongs to the field of seawater desalination technology, specifically relating to a compact small reverse osmosis seawater desalination device. Background Technology

[0002] Small-scale reverse osmosis seawater desalination units have advantages such as low overall investment, small size, portability, and immediate use. They are very suitable for use in homes, ships, drilling platforms, small islands, or other occasions with short-term and small-scale seawater desalination needs. Their development is very rapid and they have a broad market.

[0003] However, the current small-scale seawater desalination units are made of stainless steel, resulting in heavy weight, complex piping, insufficient compactness, large footprint, and inconvenience for transportation. Utility Model Content

[0004] The purpose of this invention is to provide a compact, small-scale reverse osmosis seawater desalination device that can reduce weight, reduce pipeline complexity, and has a compact structure, small footprint, and is easy to transport.

[0005] The specific technical solution adopted by this utility model is as follows:

[0006] A compact, small-scale reverse osmosis seawater desalination device includes a control box and a main unit, which are connected by a power line and a signal line;

[0007] The main unit includes a rack assembly, a high-pressure assembly, a reverse osmosis membrane assembly, and a sensor assembly;

[0008] The high-voltage component includes a motor and a high-voltage pump energy recovery unit, which are fixedly connected to the frame assembly.

[0009] The high-pressure pump energy recovery integrated machine is equipped with a high-pressure pump high-pressure outlet and a high-pressure pump inlet, an energy recovery inlet and an energy recovery outlet. The high-pressure pump high-pressure outlet is connected to a high-pressure pump high-pressure outlet pipeline, and the high-pressure pump inlet is connected to a high-pressure pump low-pressure inlet pipeline.

[0010] The reverse osmosis membrane assembly includes three reverse osmosis membranes fixedly connected to the frame assembly. The reverse osmosis membranes have a seawater inlet and a concentrate outlet on their sides, and a freshwater outlet at one end.

[0011] The seawater inlets of the three reverse osmosis membranes are connected to seawater inlet pipes, which are connected to the high-pressure pump high-pressure outlet pipe and the high-pressure pump high-pressure outlet through the seawater inlet pipes. The concentrate outlets of the three reverse osmosis membranes are connected to concentrate pipes, which are connected to the energy recovery inlet of the high-pressure pump energy recovery integrated machine through the concentrate pipes. The freshwater outlets of the three reverse osmosis membranes are connected to freshwater outlet pipes.

[0012] The sensor assembly includes a high-pressure transmitter, a low-pressure transmitter, and a TDS probe. The low-pressure transmitter is fixed on the low-pressure inlet pipe of the high-pressure pump, the high-pressure transmitter is fixed on the high-pressure outlet pipe of the high-pressure pump, and the TDS probe is fixed on the freshwater outlet pipe of the reverse osmosis membrane assembly.

[0013] Furthermore, the rack assembly includes an upper support body, a lower support body, and a pump support;

[0014] The upper support body and the lower support body are paired one to one to form a set, and the reverse osmosis membrane of the reverse osmosis module is fixedly connected between the upper support body and the lower support body;

[0015] The upper support body and the lower support body are in three groups. The three upper support bodies are the first upper support, the second upper support and the third upper support, and the three lower support bodies are the first lower support, the second lower support and the third lower support.

[0016] The upper end of the lower support body is connected to the lower end of the upper support body through a first connecting pair, and the upper end of the upper support body is connected to the lower end of the pump support through a second connecting pair. A crossbeam is provided between the first lower support and the second lower support, and the crossbeam is connected to the first lower support and the second lower support respectively through a third connecting pair.

[0017] The motor is fixedly connected to the first upper bracket and the second upper bracket, the pump bracket is fixedly connected to the upper side of the third upper bracket, and the rear end of the high-pressure pump energy recovery integrated machine is in contact with the pump bracket.

[0018] Furthermore, the upper support body and the lower support body are made of HDPE material.

[0019] Furthermore, the upper support body has a first vertical bolt hole, in which a first bolt is inserted; the lower support body has a first vertical bolt hole and a first nut hole, in which a first columnar nut is inserted; the first bolt and the first columnar nut are connected to form a first connecting pair.

[0020] The pump bracket has a second vertical bolt hole, and a second bolt is inserted into the second vertical bolt hole. The upper bracket body has a second vertical bolt hole and a second nut hole, and a second columnar nut is inserted into the second nut hole. The second bolt and the second columnar nut are connected to form a second connecting pair.

[0021] A crossbeam is provided between the first upper support and the second upper support. The first upper support and the second upper support are provided with transverse bolt holes. Transverse threaded holes are provided at both ends of the crossbeam. A fourth bolt is inserted into the transverse bolt hole and is connected to the transverse threaded hole to form a third connecting pair.

[0022] Furthermore, the high-voltage component also includes a bell-shaped cover, which is fixedly connected to the outside of the high-voltage pump energy recovery unit.

[0023] The technical effects achieved by this utility model are as follows:

[0024] This utility model discloses a compact small-scale reverse osmosis seawater desalination device. Through improvements to the frame assembly, high-pressure assembly, reverse osmosis membrane assembly, and sensor assembly, it can reduce weight, reduce pipeline complexity, and has a compact structure, small footprint, and is easy to transport. Attached Figure Description

[0025] Figure 1 This is a frontal three-dimensional schematic diagram of the entire machine of this utility model;

[0026] Figure 2 This is a frontal three-dimensional schematic diagram of the host module of this utility model;

[0027] Figure 3 This is a rear-view stereoscopic diagram of the host module of this utility model;

[0028] Figure 4 This is a schematic diagram of the connection structure between the upper and lower support bodies of this utility model;

[0029] Figure 5 This is a schematic diagram of the connection structure between the pump bracket and the upper support body of this utility model.

[0030] Figure 6 This is a schematic diagram of the upper support structure of this utility model;

[0031] Figure 7 This is a schematic diagram of the lower support structure of this utility model;

[0032] Figure 8 This is a schematic diagram of the pump support structure of this utility model;

[0033] The attached diagram lists the components represented by each number as follows:

[0034] 100. Control box; 200. Main unit; 211. Lower support body; 212. Upper support body; 213. Pump support; 214. Crossbeam; 201. Bell-shaped housing; 202. Motor; 203. Concentrate pipe; 204. Reverse osmosis membrane module; 205. High-pressure pump energy recovery unit; 221. Low-pressure transmitter; 222. High-pressure transmitter; 251. First bolt; 252. First columnar nut; 253. Third bolt; 254. Third columnar nut ; 255, Second bolt; 256, Second columnar nut; 231, First check valve; 232, Second check valve; 241, Freshwater outlet; 242, Flushing inlet; 243, Seawater inlet; 244, Concentrate outlet; 261, First nut hole; 262, Second nut hole; 263, Third nut hole; 264, First vertical bolt hole; 265, Second vertical bolt hole; 266, Third vertical bolt hole; 267, Horizontal bolt hole. Detailed Implementation

[0035] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0036] like Figures 1-8 As shown, a compact small reverse osmosis seawater desalination device includes a control box 100 and a main unit 200, which are connected by power lines and signal lines.

[0037] The main unit 200 includes a rack assembly, a high-pressure assembly, a reverse osmosis membrane assembly 204, and a sensor assembly;

[0038] like Figures 2-5 As shown, the high-voltage assembly includes a motor 202, a high-voltage pump energy recovery unit 205, and a bell-shaped cover 201. The motor 202 and the high-voltage pump energy recovery unit 205 are fixedly connected to the frame assembly and are connected in a transmission manner. The bell-shaped cover 201 is fixedly connected to the outside of the high-voltage pump energy recovery unit 205 and is used to protect the high-voltage pump energy recovery unit 205.

[0039] The high-pressure pump energy recovery integrated machine 205 is equipped with a high-pressure pump high-pressure outlet and a high-pressure pump inlet, an energy recovery inlet and an energy recovery outlet. The high-pressure pump high-pressure outlet is connected to a high-pressure pump high-pressure outlet pipeline, and the high-pressure pump inlet is connected to a high-pressure pump low-pressure inlet pipeline.

[0040] like Figures 2-5As shown, the reverse osmosis membrane module 204 includes three reverse osmosis membranes fixedly connected to the frame assembly. The reverse osmosis membranes have a seawater inlet and a concentrate outlet on their sides, and a freshwater outlet at one end.

[0041] The seawater inlets of the three reverse osmosis membranes are connected to seawater inlet pipes, which are then connected to the high-pressure pump's high-pressure outlet pipe and the high-pressure pump's high-pressure outlet.

[0042] The concentrate outlets of the three reverse osmosis membranes are connected to concentrate pipes 203, and the concentrate outlets are connected to the energy return inlet of the high-pressure pump energy recovery unit 205 through concentrate pipes 203.

[0043] The freshwater outlets of the three reverse osmosis membranes are connected to freshwater outlet pipes.

[0044] like Figure 3 As shown, the sensor assembly includes a high-pressure transmitter 222, a low-pressure transmitter 221, and a TDS probe. The low-pressure transmitter 221 is fixed on the low-pressure inlet pipe of the high-pressure pump, the high-pressure transmitter 222 is fixed on the high-pressure outlet pipe of the high-pressure pump, and the TDS probe is fixed on the freshwater outlet pipe of the reverse osmosis membrane assembly 204.

[0045] like Figures 1-7 As shown, the rack assembly is made of plastic and includes an upper support body 212, a lower support body 211, and a pump support 213.

[0046] The upper support body 212 and the lower support body 211 are paired together. The reverse osmosis membrane of the reverse osmosis module is fixedly connected between the upper support body 212 and the lower support body 211. Gaskets are provided at the connection between the upper support body 212 and the lower support body 211 and the reverse osmosis membrane, so as to protect the reverse osmosis membrane.

[0047] There are three sets of upper support bodies 212 and lower support bodies 211. The three upper support bodies 212 are the first upper support, the second upper support and the third upper support, and the three lower support bodies 211 are the first lower support, the second lower support and the third lower support. The upper support bodies 212 and the lower support bodies 211 are made of HDPE material.

[0048] The upper end of the lower support body 211 is connected to the lower end of the upper support body 212 through a first connecting pair. The upper end of the upper support body 212 is connected to the lower end of the pump support 213 through a second connecting pair. A crossbeam 214 is provided between the first lower support and the second lower support. The crossbeam 214 is connected to the first lower support and the second lower support respectively through a third connecting pair.

[0049] Among them, the motor 202 is fixedly connected to the first upper bracket and the second upper bracket, the pump bracket 213 is fixedly connected to the upper side of the third upper bracket, and the rear end of the high-pressure pump energy recovery unit 205 is in contact with the pump bracket 213, so that the high-pressure pump energy recovery unit 205 and the motor 202 can be fixed by the upper bracket body 212, the lower bracket body 211 and the pump bracket 213.

[0050] Meanwhile, a rubber pad can be installed at the bottom of the lower support body 211 to achieve shock absorption and protection.

[0051] like Figures 4-7 As shown, in one embodiment, the upper support body 212 has a first vertical bolt hole 264, in which a first bolt 251 is inserted. The lower support body 211 has a first vertical bolt hole 264 and a first nut hole 261, in which a first columnar nut 252 is inserted. The first bolt 251 and the first columnar nut 252 are connected to form a first connecting pair, thereby enabling the lower support body 211 and the upper support body 212 to be fixedly connected together simply and stably.

[0052] The pump bracket 213 has a second vertical bolt hole 265, and a second bolt 255 is inserted into the second vertical bolt hole 265. The upper bracket body 212 has a second vertical bolt hole 265 and a second nut hole 262, and a second columnar nut 256 is inserted into the second nut hole 262. The second bolt 255 and the second columnar nut 256 are connected to form a second connecting pair, so that the pump bracket 213 and the upper bracket body 212 can be fixedly connected together simply and stably.

[0053] The upper support body 212 has a third vertical bolt hole 266, into which a third bolt 253 is inserted. The upper support body 212 also has a third nut hole 263, into which a third columnar nut 254 is inserted. The third bolt 253 is connected to the third columnar nut 254, thereby fixing the motor 202 and the upper support body 212 together.

[0054] like Figures 4-7 As shown, in another embodiment, a crossbeam 214 is provided between the first upper bracket and the second upper bracket. The first upper bracket and the second upper bracket are provided with transverse bolt holes 267. Transverse threaded holes are provided at both ends of the crossbeam 214. A fourth bolt is inserted into the transverse bolt hole 267. The fourth bolt is connected to the transverse threaded hole to form a third connecting pair, thereby enabling the crossbeam 214 and the upper bracket body 212 to be fixedly connected together simply and stably.

[0055] This technical solution features a novel structure and ingenious design. The frame is made of HDPE material, which greatly reduces the weight of the whole machine while ensuring strength, thus lowering costs. Furthermore, all components are fixed with bolts, enabling disassembly and on-site assembly of each component, which facilitates transportation to remote areas.

[0056] like Figures 2-4 As shown, the crossbeam 214 is fixed with a seawater inlet 243, a freshwater outlet 241, a flushing inlet 242, and a concentrated water outlet 244.

[0057] The seawater inlet pipe is connected to the high-pressure pump inlet.

[0058] Specifically, a first one-way valve 231 is fixedly connected between the seawater inlet pipe and the high-pressure pump inlet. The seawater inlet 243 is connected to the inlet of the first one-way valve 231. The outlet of the first one-way valve 231 is connected to the high-pressure pump inlet of the high-pressure pump energy recovery integrated machine 205 through a pipe, so that seawater can be added into the interior of the high-pressure pump energy recovery integrated machine 205 and the backflow of seawater can be reduced.

[0059] Among them, the freshwater outlet 241 is connected to the freshwater outlet through the freshwater outlet pipe, so that the freshwater in the reverse osmosis membrane can be discharged.

[0060] Among them, the concentrate outlet 244 is connected to the concentrate outlet through the concentrate pipe 203, the concentrate outlet 244 is connected to the energy return inlet of the high pressure pump energy recovery unit 205 through the pipeline, the concentrate outlet 244 is connected to the energy return outlet of the high pressure pump energy recovery unit 205 through the pipeline, the concentrate enters the high pressure pump energy recovery unit 205 through the energy return inlet, and then is discharged through the energy return outlet;

[0061] The flushing inlet 242 is connected to the high-pressure pump inlet of the high-pressure pump energy recovery unit 205 via a pipe, so that flushing water can be injected into the high-pressure pump energy recovery unit 205.

[0062] It should be noted that a second one-way valve 232 is fixedly connected between the flushing inlet 242 and the high-pressure pump energy recovery unit 205. The flushing inlet 242 is connected to the inlet of the second one-way valve 232, and the outlet of the second one-way valve 232 is connected to the inlet of the high-pressure pump energy recovery unit 205 through a pipe, thereby reducing the backflow of flushing water.

[0063] Furthermore, the seawater inlet 243, freshwater outlet 241, flushing inlet 242, and concentrated water outlet 244 are equipped with pagoda connectors.

[0064] This technical solution replaces the electric ball valve with a one-way valve and the pressure transmitter (i.e., high-pressure transmitter 222 and low-pressure transmitter 221) with the pressure switch and pressure gauge. While achieving automation, it greatly reduces the number of components and simplifies the system configuration. At the same time, the input and output interfaces adopt pagoda connectors to improve the flexibility of pipeline connection. The motor 202, the high-pressure pump energy recovery unit 205, and the pressure transmitter are integrated into the main unit 200 module. The corresponding pretreatment module can be configured according to the raw water quality, realizing the standardization of the main unit 200, shortening the delivery cycle of the entire device, and reducing costs.

[0065] In summary, this technical solution, through improvements to the frame assembly, high-pressure assembly, reverse osmosis membrane assembly 204, and sensor assembly, can reduce weight, decrease piping complexity, and achieve a compact structure with a small footprint, making it easy to transport.

[0066] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A compact, small-scale reverse osmosis seawater desalination device, characterized in that: It includes a control box (100) and a host (200), which are connected by power lines and signal lines; The host unit (200) includes a rack assembly, a high-pressure assembly, a reverse osmosis membrane assembly (204), and a sensor assembly; The high-voltage component includes a motor (202) and a high-voltage pump energy recovery unit (205), which are fixedly connected to the frame assembly. The high-pressure pump energy recovery integrated machine (205) is equipped with a high-pressure pump high-pressure outlet and a high-pressure pump inlet, an energy recovery inlet and an energy recovery outlet. The high-pressure pump high-pressure outlet is connected to a high-pressure pump high-pressure outlet pipeline, and the high-pressure pump inlet is connected to a high-pressure pump low-pressure inlet pipeline. The reverse osmosis membrane module (204) includes three reverse osmosis membranes fixedly connected to the frame assembly. The reverse osmosis membranes have a seawater inlet and a concentrate outlet on their sides, and a freshwater outlet at one end. The seawater inlets of the three reverse osmosis membranes are connected to seawater inlet pipes, which are connected to the high-pressure pump high-pressure outlet pipe and the high-pressure pump high-pressure outlet through the seawater inlet pipes. The concentrate outlets of the three reverse osmosis membranes are connected to concentrate pipes (203), which are connected to the energy recovery inlet of the high-pressure pump energy recovery integrated machine (205) through the concentrate pipes (203). The freshwater outlets of the three reverse osmosis membranes are connected to freshwater outlet pipes. The sensor assembly includes a high-pressure transmitter (222), a low-pressure transmitter (221), and a TDS probe. The low-pressure transmitter (221) is fixed on the low-pressure inlet pipe of the high-pressure pump, the high-pressure transmitter (222) is fixed on the high-pressure outlet pipe of the high-pressure pump, and the TDS probe is fixed on the freshwater outlet pipe of the reverse osmosis membrane assembly (204).

2. The compact small-scale reverse osmosis seawater desalination device according to claim 1, characterized in that: The frame assembly includes an upper support body (212), a lower support body (211), and a pump support (213). The upper support body (212) and the lower support body (211) are paired together, and the reverse osmosis membrane of the reverse osmosis membrane assembly (204) is fixedly connected between the upper support body (212) and the lower support body (211). The upper support body (212) and lower support body (211) are in three groups. The three upper support bodies (212) are the first upper support, the second upper support and the third upper support, respectively. The three lower support bodies (211) are the first lower support, the second lower support and the third lower support, respectively. The upper end of the lower support body (211) is connected to the lower end of the upper support body (212) through a first connecting pair, and the upper end of the upper support body (212) is connected to the lower end of the pump support (213) through a second connecting pair. A crossbeam (214) is provided between the first lower support and the second lower support, and the crossbeam (214) is connected to the first lower support and the second lower support respectively through a third connecting pair. The motor (202) is fixedly connected to the first upper bracket and the second upper bracket, and the pump bracket (213) is fixedly connected to the upper side of the third upper bracket. The rear end of the high-pressure pump energy recovery integrated machine (205) is in contact with the pump bracket (213).

3. A compact, small-scale reverse osmosis seawater desalination device according to claim 2, characterized in that: Gaskets are provided at the connection points between the upper support body (212) and the lower support body (211) and the reverse osmosis membrane.

4. A compact, small-scale reverse osmosis seawater desalination device according to claim 2, characterized in that: The upper support body (212) and the lower support body (211) are made of HDPE material.

5. A compact, small-scale reverse osmosis seawater desalination device according to claim 2, characterized in that: A rubber pad is provided at the bottom of the lower support body (211).

6. A compact, small-scale reverse osmosis seawater desalination device according to claim 2, characterized in that: The upper support body (212) has a first vertical bolt hole (264) and a first bolt (251) is inserted into the first vertical bolt hole (264). The lower support body (211) has a first vertical bolt hole (264) and a first nut hole (261) and a first columnar nut (252) is inserted into the first nut hole (261). The first bolt (251) and the first columnar nut (252) are connected to form a first connecting pair. The pump bracket (213) has a second vertical bolt hole (265), and a second bolt (255) is inserted into the second vertical bolt hole (265). The upper bracket body (212) has a second vertical bolt hole (265) and a second nut hole (262), and a second columnar nut (256) is inserted into the second nut hole (262). The second bolt (255) and the second columnar nut (256) are connected to form a second connecting pair. A crossbeam (214) is provided between the first upper support and the second upper support. The first upper support and the second upper support are provided with transverse bolt holes (267). Transverse threaded holes are provided at both ends of the crossbeam (214). A fourth bolt is inserted into the transverse bolt hole (267). The fourth bolt is connected to the transverse threaded hole to form a third connecting pair.

7. A compact, small-scale reverse osmosis seawater desalination device according to claim 1, characterized in that: The high-voltage assembly also includes a bell-shaped cover (201), which is fixedly connected to the outside of the high-voltage pump energy recovery unit (205).

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