Gas-liquid mixed transport synchronous self-priming pump structure

Abstract

The utility model discloses a kind of gas-liquid mixed transmission synchronous self-priming pump structure, belong to self-priming pump technical field, comprising: centrifugal pump, its front end is provided with siphon tank, several steady flow baffle are provided in the siphon tank, exhaust port and water filling port are provided on the siphon tank, the siphon tank bottom is provided with drainage tube, liquid discharge pipe and liquid delivery pipe, the liquid delivery pipe is connected in the centrifugal pump water inlet;And gas-liquid separation chamber, it is connected at the centrifugal pump outlet.The utility model is by being provided with siphon tank, so that every time before starting does not need special water diversion operation, and also can achieve pump and simultaneously realize to send medium, ordinary self-priming pump after starting pump can only empty air and not self-priming time of water.

Description

Technical Field

[0001] This utility model belongs to the field of self-priming pump technology, and in particular relates to a structure of a gas-liquid mixed transport synchronous self-priming pump. Background Technology

[0002] Self-priming pumps are commonly used liquid transfer tools in modern industrial fields. However, they may encounter some common problems during daily use, such as the pump failing to pump water or the pumping not draining water simultaneously due to excessively long venting time during self-priming.

[0003] Meanwhile, self-priming pumps require manual water priming to start and function properly, which undoubtedly increases the complexity and workload of operation. In simple industrial settings lacking automated water priming devices, or in temporary liquid transport systems, workers must spend extra time and effort preparing water before each use of the self-priming pump. For example, in remote farmland irrigation sites, where convenient water priming facilities may be lacking, farmers need to use buckets and other tools to scoop water from nearby rivers, wells, or other water sources to the self-priming pump's inlet until the pump is full before starting irrigation. This process is not only inefficient but also highly susceptible to environmental factors. If there is no suitable water source nearby, or if the water source is far away, it will cause great inconvenience to operation. In addition, manual water priming also poses certain safety hazards. During operation, workers may slip and fall due to slippery ground or carrying buckets of water. Furthermore, controlling the amount of water primed is difficult to do precisely. If insufficient water is primed, the self-priming pump may not be able to start the self-priming process properly; if too much water is primed, it will waste water resources. Utility Model Content

[0004] The purpose of this utility model is to solve some common problems encountered by self-priming pumps, which are commonly used liquid conveying tools in modern industrial fields, during daily use, such as the self-priming pump failing to pump water and the excessively long exhaust time during the self-priming process preventing synchronous drainage. Therefore, a gas-liquid mixed conveying synchronous self-priming pump structure is proposed.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a gas-liquid mixed transport synchronous self-priming pump structure, comprising:

[0006] A centrifugal pump has a siphon tank at its front end, and several flow-stabilizing baffles are installed inside the siphon tank. The siphon tank is equipped with an exhaust port and a water inlet. The bottom of the siphon tank is equipped with a drainage pipe, a drain pipe, and a delivery pipe. The delivery pipe is connected to the water inlet of the centrifugal pump.

[0007] A gas-liquid separation chamber is connected to the outlet of the centrifugal pump.

[0008] As a further description of the above technical solution:

[0009] The connection between the gas-liquid separation chamber and the centrifugal pump is a sealed connection.

[0010] As a further description of the above technical solution:

[0011] Several of the flow-stabilizing baffles are located above and below the siphon tank.

[0012] As a further description of the above technical solution:

[0013] The siphon tank is equipped with a magnetic level gauge.

[0014] As a further description of the above technical solution:

[0015] The siphon tank is also equipped with a manhole.

[0016] As a further description of the above technical solution:

[0017] The exhaust port is connected to the vacuum pump.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0019] 1. In this utility model, by setting a siphon tank, it is possible to eliminate the need for special water priming operation before each start-up, and to achieve simultaneous pump start-up and medium discharge, thus eliminating the self-priming time of ordinary self-priming pumps that can only discharge air but not water after starting.

[0020] 2. In this utility model, the siphon tank, as a pressure vessel storage tank, provides ample space for gas-liquid mixing and separation due to its large volume. Because a larger volume can accommodate more liquid and air for mixing, the larger the siphon tank, the stronger its self-priming ability. Furthermore, it is more conducive to the discharge of gas and the return of liquid during the circulation process, thereby forming a stronger vacuum and improving the pump's self-priming ability.

[0021] 3. In this utility model, the design of the upper and lower flow stabilizing baffles effectively stabilizes the flow of liquid in the siphon tank, avoids the influence of liquid turbulence on the gas-liquid mixing and separation process, and ensures the stable operation of the entire system. At the same time, the application of the comprehensive vacuum self-priming principle enables the centrifugal pump to maintain a certain vacuum during operation, further improving the pump's pumping performance and stability.

[0022] 4. In this utility model, the structural design improves the suction conditions at the centrifugal pump inlet, enhancing the pump's operational reliability and enabling the transport of various liquids free of solid particles. It also features high-level start-up and low-level shutdown functions, along with an intelligent shutdown protection device that automatically stops the pump after the medium is emptied. It has an emptied-air shutdown function, is clog-free, and allows for remote control, increasing automation. It saves labor costs, provides fast water output, occupies a small area, requires less investment, and is easy to maintain. When used with large-diameter, high-flow-rate pumps, its energy-saving effect is very significant. It can be widely used in industrial and urban water supply and drainage, high-rise building pressurization, garden irrigation, fire-fighting pressurization, air conditioning, heating, cooling and refrigeration systems, boiler high-temperature hot water pressurization and water supply. It is also suitable for transporting water, chemical media, and various liquids in the food, pharmaceutical, chemical, and petroleum industries. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a front view of the structure of a gas-liquid mixed transport synchronous self-priming pump.

[0025] Figure 2 This is a schematic diagram of the siphon tank in a gas-liquid mixed transport synchronous self-priming pump structure. Figure 1 .

[0026] Figure 3 This is a schematic diagram of the siphon tank in a gas-liquid mixed transport synchronous self-priming pump structure. Figure 2 .

[0027] Figure 4 This is a schematic diagram of the siphon tank in a gas-liquid mixed transport synchronous self-priming pump structure. Figure 3 .

[0028] Figure 5 This is a schematic diagram of the flow stabilizing baffle in a gas-liquid mixed transport synchronous self-priming pump structure.

[0029] Legend:

[0030] 1-Centrifugal pump; 2-Siphon tank; 3-Flow stabilizer baffle; 4-Exhaust port; 5-Water inlet; 6-Drain pipe; 7-Drain pipe; 8-Infusion pipe; 9-Gas-liquid separation chamber; 10-Magnetic level gauge; 11-Manhole. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0034] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0035] In the description of the embodiments of this utility model, it should be noted that the terms "upper" and "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0036] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] Please see Figure 1-5This utility model provides a technical solution: a gas-liquid mixed transport synchronous self-priming pump structure, comprising:

[0038] Centrifugal pump 1, with a siphon tank 2 at its front end, a plurality of flow stabilizing baffles 3 inside the siphon tank 2, an exhaust port 4 and a water inlet 5 on the siphon tank 2, and a drainage pipe 6, a drain pipe 7 and a delivery pipe 8 at the bottom of the siphon tank 2, with the delivery pipe 8 connected to the water inlet of the centrifugal pump 1;

[0039] And a gas-liquid separation chamber 9, which is connected to the outlet of the centrifugal pump 1.

[0040] The connection between the gas-liquid separation chamber 9 and the centrifugal pump 1 is a sealed connection.

[0041] Several of the flow-stabilizing baffles 3 are located above and below the siphon tank 2.

[0042] The siphon tank 2 is equipped with a magnetic level gauge 10. The magnetic level gauge can intuitively display the actual height of the liquid in the siphon tank; during the operation of the synchronous self-priming function, the operator can observe the scale of the magnetic level gauge to understand the changes in the liquid level in the tank at any time without opening the tank or using other complicated equipment for measurement.

[0043] The siphon tank 2 is also provided with a manhole 11. Siphon tanks are usually large in size and have large components such as flow stabilizing baffles and support structures installed inside; the manhole provides an operating entrance for the installation of these components, allowing workers to send the components into the tank through the manhole and perform accurate installation and fixation.

[0044] The exhaust port 4 is connected to a vacuum pump. The vacuum pump can actively extract air from the self-priming pump, accelerating this exhaust process.

[0045] Working Principle: Before using the device, a certain amount of liquid is injected into the siphon tank through the filling hole to create an initial liquid level, setting conditions for subsequent gas-liquid mixing. When the horizontal centrifugal pump starts, the synchronous self-priming device begins to work. Due to the suction effect of the centrifugal pump, the liquid in the siphon tank begins to flow under the action of pressure difference. At this time, the upper and lower flow stabilizing baffles stabilize the liquid flow and prevent liquid turbulence. During the liquid flow, it will carry the air in the tank, forming a gas-liquid mixture in the drainage pipe, drain pipe, and delivery pipe. This is because the suction of the centrifugal pump creates a negative pressure in the tank, causing air to be drawn in and mixed with the liquid. After the gas-liquid mixture enters the horizontal centrifugal pump, the gas-liquid mixing effect is further enhanced under the action of the impeller. The mixed gas-liquid fluid is then transported... The liquid is delivered to the gas-liquid separation chamber, where it begins to separate due to changes in velocity and gravity. The separated gas is discharged from the system through the vent, while the liquid flows back into the siphon tank through the delivery pipe, forming a cycle. As the cycle continues, air is continuously expelled from the siphon tank, gradually creating a vacuum. This vacuum allows the pump to continuously draw liquid from the outside, achieving simultaneous self-priming and simultaneous suction. In other words, while the centrifugal pump is drawing liquid, it can simultaneously expel air from the suction line, ensuring the normal operation of the centrifugal pump. When the centrifugal pump and the air in the suction line are completely expelled and the system reaches a stable operating state, the automatic shutdown components will automatically detect and stop the pump's operation based on preset parameters (such as pressure and liquid level), preventing excessive operation that could lead to energy waste or equipment damage.

[0046] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A gas-liquid mixed transport synchronous self-priming pump structure, characterized in that, include: A centrifugal pump has a siphon tank at its front end, and several flow-stabilizing baffles are installed inside the siphon tank. The siphon tank is equipped with an exhaust port and a water inlet. The bottom of the siphon tank is equipped with a drainage pipe, a drain pipe, and a delivery pipe. The delivery pipe is connected to the water inlet of the centrifugal pump. A gas-liquid separation chamber is connected to the outlet of the centrifugal pump.

2. A gas-liquid mixed-conveying synchronous self-priming pump structure according to claim 1, characterized in that, The connection between the gas-liquid separation chamber and the centrifugal pump is a sealed connection.

3. The gas-liquid mixed transport synchronous self-priming pump structure according to claim 2, characterized in that, Several of the flow-stabilizing baffles are located above and below the siphon tank.

4. The gas-liquid mixed transport synchronous self-priming pump structure according to claim 1, characterized in that, The siphon tank is equipped with a magnetic level gauge.

5. The gas-liquid mixed transport synchronous self-priming pump structure according to claim 4, characterized in that, The siphon tank is also equipped with a manhole.

6. The gas-liquid mixed transport synchronous self-priming pump structure according to claim 1, characterized in that, The exhaust port is connected to the vacuum pump.

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