Anti-vortex single-stage pump with non-return function

Abstract

The utility model relates to an anti-vortex single-stage pump with a non-return function. The anti-vortex single-stage pump is characterized by comprising a connecting cover, a motor, a pump body, an impeller, a non-return valve and a sensor, the motor is fixedly mounted at the top of the connecting cover; the pump body is fixedly installed at the bottom of the connecting cover and horizontally arranged, a water inlet and a water outlet are formed in the two ends of the pump body respectively, and a vertical anti-vortex plate is fixed to the position, located at the water inlet of the impeller, in the pump body. The impeller is arranged in the pump body and is fixedly connected with an output shaft of the motor; the check valve is fixedly mounted in the water inlet of the pump body; and the sensor is fixed in the connecting cover. The check valve is fixedly installed in the water inlet of the pump body, the sensor is fixed in the connecting cover and integrally arranged in a pump body unit, the size of a water pump system is reduced, meanwhile, fault nodes are reduced, the vertical vortex prevention plate is fixed to the position, located at the water inlet of the impeller, in the pump body, and the vortex prevention plate is not prone to falling off. The anti-vortex plate can prevent the situation that pre-rotation is generated, vortex is formed, and the unit efficiency and the net positive suction head are affected.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of water pump, especially relates to a single -stage pump of anti -vortex with check. BACKGROUND

[0002] Single -stage pump is a kind of simple pump, it is made of a single rotor assembly, medium is transferred from a low pressure area to a high pressure area, it is usually driven by a motor, and medium is transported from input port to output port, and single -stage centrifugal pump is widely used in industrial and civil fields at present as pipeline pressurizing equipment.Single -stage pump is used to transport various media, such as water, oil, gasoline etc., and different pressure or temperature can be used to adjust output flow, and most applications use valve and sensor to be independently set, and the volume is relatively large, and the fault point is relatively high, and pre-rotation is easy to be generated at the inlet of water pump impeller and vortex is formed, which influences unit efficiency and net positive suction head.

[0003] The operation of conventional water pump usually uses pressure sensor or temperature sensor to control unit constant, variable operation, usually installs check valve at water pump outlet, and sensor is arranged on system pipeline, and there is also integrated arrangement mode that sensor is arranged on water pump unit on the market, and due to the check valve at the outlet, the integrated sensor cannot accurately measure the pressure or temperature of the system after the water pump stops running, causing water pump control misoperation. UTILITY MODEL CONTENT

[0004] The utility model discloses a single -stage pump of anti -vortex with check can effectively solve the problems in the background art.

[0005] To achieve the above object, the utility model is realized by the following technical scheme:

[0006] A single -stage pump of anti -vortex with check, comprising

[0007] Coupling cover;

[0008] Motor, fixedly installed at the top of the coupling cover;

[0009] Pump body, fixedly installed at the bottom of the coupling cover, the pump body is horizontally arranged, and is provided with water inlet and water outlet at two ends respectively;

[0010] Impeller, set in the pump body, is fixedly connected with the output shaft of the motor, and the water inlet of the impeller in the pump body is fixed with vertical anti -vortex plate;

[0011] Check valve, fixedly installed in the water inlet of the pump body;

[0012] Sensor, fixed in the coupling cover.

[0013] Preferably, the coupling cover is connected with the motor through an upper flange plate, and the coupling cover is connected with the pump body through a lower flange plate.

[0014] Preferably, the sensor is a pressure sensor or a temperature sensor.

[0015] Preferably, the check valve is fixed in the water inlet of the pump body by bolts.

[0016] The utility model provides a single -stage pump of anti -vortex flow with check, has the following beneficial effects:

[0017] The utility model discloses a check valve is fixedly installed in the water inlet of pump body, and the sensor is fixed in the coupling cover and is integrally arranged in the pump body unit, does not need to add pressure sensor or temperature sensor on the system pipeline, reduces the size of water pump system, also reduces the fault node simultaneously, and the check valve of import is embedded in the water inlet of pump body, does not influence the overall structure, prevents system medium backflow, and the sensor can accurately measure the pressure and temperature value of system, and can also be linked with motor, and will not produce the misoperation, and the difference is how much, and the movement is how much, the vertical anti -vortex flow board is fixed in the water inlet of the impeller in the pump body, and the anti -vortex flow board can prevent the pre -rotation and form vortex here, avoids the influence unit efficiency and the net positive suction head. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structure schematic view of the utility model discloses a single -stage pump of anti -vortex flow with check.

[0019] In the drawing: 101, water inlet, 102, water outlet, 1, pump body, 2, impeller, 3, coupling cover, 4, motor, 5, sensor, 6, check valve, 7, bolt, 11, anti -vortex flow board. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantage of the utility model more clear, the technical scheme in the utility model will be described clearly and completely below in combination with the drawings of the utility model.

[0021] The technical scheme of the utility model will be described clearly and completely below in combination with embodiments, and obviously, the described embodiments are a part of embodiments of the utility model, not all embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, 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 an indirect connection through an intermediate medium, or it can be a communication between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0024] Example

[0025] Reference Figure 1 , a single-stage pump with anti-vortex and check function, including

[0026] Connecting cover 3;

[0027] The motor 4 is fixedly mounted on the top of the connection cover 3;

[0028] The pump body 1 is fixedly mounted on the bottom of the connection cover 3. The pump body 1 is arranged horizontally, and a water inlet 101 and a water outlet 102 are provided at both ends respectively.

[0029] The impeller 2 is arranged in the pump body 1 and is fixedly connected to the output shaft of the motor 4. A vertical vortex prevention plate 11 is fixed at the water inlet of the impeller 2 in the pump body 1;

[0030] The check valve 6 is fixedly installed in the water inlet 101 of the pump body 1;

[0031] The sensor 5 is fixed in the connection cover 3 .

[0032] In a specific embodiment, the coupling cover 3 is connected with the motor 4 through an upper flange, and the coupling cover 3 is connected with the pump body 1 through a lower flange.

[0033] In a specific embodiment, the sensor 5 is a pressure sensor 5 or a temperature sensor 5.

[0034] In a specific embodiment, the check valve 6 is fixed in the water inlet 101 of the pump body 1 through a bolt 7.

[0035] In use, the pump delivery medium pushes the check valve 6 away from the water inlet 101 to enter the pump body 1, enters the impeller 2 after passing through the anti-vortex plate 11, the motor 4 drives the impeller 2 to rotate, and the pressurized medium flows from the water outlet 102 of the pump body 1 to the system. Due to the check valve 6 fixedly installed in the water inlet 101 of the pump body 1 and the sensor 5 fixedly installed in the coupling cover 3, the pressure and medium temperature at the coupling cover 3 are equivalent to the water outlet 102 of the pump body 1, which is measured by the sensor 5, and the value is input as a signal to the controller of the motor 4, and the speed of the motor 4 is controlled in linkage. When the system pressure or temperature is reached, the motor 4 stops working, and the system enters a dormant state. The check valve 6 of the water inlet 101 is closed, and the sensor 5 measures the system pressure or temperature in real time. When the condition for starting the motor 4 is reached, the motor 4 enters the working state again.

[0036] The check valve 6 of the utility model is fixedly installed in the water inlet 101 of the pump body 1, the sensor 5 is fixedly installed in the coupling cover 3, and is integrally arranged in the pump body 1 set, so that the pressure sensor 5 or the temperature sensor 5 need not be additionally arranged on the system pipeline, the volume of the water pump system is reduced, and the fault nodes are also reduced. The check valve 6 of the inlet is embedded in the water inlet 101 of the pump body 1, does not affect the overall structure, prevents the backflow of system medium, the sensor 5 can accurately measure the pressure and temperature values of the system, can be linked with the motor 4, and will not produce misoperation. The anti-vortex plate 11 vertically fixed in the water inlet 101 of the impeller 2 in the pump body 1 can prevent the generation of pre-rotation and vortex, and affect the efficiency and net positive suction head of the set.

[0037] The above embodiments are only used to illustrate the technical solutions of the utility model, and not to limit them. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced equivalently. The modification or replacement does not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A single-stage pump with anti-vortex and non-return function, characterized by: include Connecting cover; A motor is fixedly mounted on the top of the connection cover; The pump body is fixedly mounted on the bottom of the connection cover, the pump body is arranged horizontally, and a water inlet and a water outlet are respectively provided at both ends; An impeller is disposed in the pump body and fixedly connected to the output shaft of the motor, and a vertical vortex prevention plate is fixed in the pump body at the water inlet of the impeller; a check valve, fixedly installed in the water inlet of the pump body; The sensor is fixed in the connection cover.

2. The single-stage pump with anti-vortex and check function according to claim 1, characterized in that: The connection cover is connected to the motor via an upper flange, and the connection cover is connected to the pump body via a lower flange.

3. The single-stage pump with anti-vortex and check function according to claim 1, characterized in that: The sensor is a pressure sensor or a temperature sensor.

4. The anti-vortex single-stage pump with non-return function according to claim 1, characterized in that: The check valve is fixed in the water inlet of the pump body by means of bolts.

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