Novel high-pressure constant flow pump

Abstract

The utility model relates to the technical field of high-pressure constant-flow pumps, in particular to a novel high-pressure constant-flow pump which comprises a high-pressure constant-flow pump fluid inlet channel and a high-pressure constant-flow pump fluid output channel, a control chamber is arranged above a communicating body of the high-pressure constant-flow pump fluid inlet channel and the high-pressure constant-flow pump fluid output channel in a communicating mode, and sliding ways are arranged on the two sides of the control chamber. A sealing bottom plate is arranged between the control chamber and a communicating body of the high-pressure constant-flow pump fluid inlet channel and the high-pressure constant-flow pump fluid output channel, a mounting plate is arranged above one side of the sealing bottom plate and fixedly connected with the control chamber, and a flow monitor is installed at the position of the high-pressure constant-flow pump fluid output channel. According to the high-pressure constant-flow pump, the fluid channel of the high-pressure constant-flow pump is improved, the control chamber and the flow monitor are additionally arranged, the flow control valve is driven to ascend and descend in a real-time flow monitoring mode, adjustment and control over the flow are achieved in a fluid partial cut-off mode, and the actual flow tends to be consistent with the standard flow.

Description

Technical Field

[0001] The utility model relates to the technical field of high-pressure constant-current pumps, in particular to a novel high-pressure constant-current pump. Background Art

[0002] A high-pressure constant-current pump is a hydraulically driven volumetric flow regulating device (also known as a quantitative vane pump). It has the characteristics of small size, light weight, high efficiency and long life.

[0003] When it is used, when the actual flow rate deviates greatly from the standard flow rate, the return of the one-way valve will cause flow fluctuations, which will in turn cause large pulsations in the pump output pressure. Utility Model Content

[0004] The purpose of the utility model is to provide a new type of high-pressure constant-flow pump to solve the problem proposed in the above background technology that when the actual flow rate of the high-pressure constant-flow pump deviates greatly from the standard flow rate, the return of the one-way valve will cause flow fluctuations, thereby causing large pulsation of the pump output pressure.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A novel high-pressure constant-current pump comprises a high-pressure constant-current pump fluid inlet channel and a high-pressure constant-current pump fluid output channel, a control chamber is provided above the connecting body of the high-pressure constant-current pump fluid inlet channel and the high-pressure constant-current pump fluid output channel, slideways are provided on both sides of the control chamber, a sealing bottom plate is provided between the control chamber and the connecting body of the high-pressure constant-current pump fluid inlet channel and the high-pressure constant-current pump fluid output channel, a mounting plate is provided above one side of the sealing bottom plate, the mounting plate is fixedly connected to the control chamber, a flow monitor is installed at the position of the high-pressure constant-current pump fluid output channel, a flow control valve is slidably installed at the position of the slideway, a cylinder is installed at the mounting plate, the inner rod end of the cylinder is fixedly connected to the flow control valve, and the signal output end of the flow monitor is connected to the signal input end of the cylinder.

[0007] As a further description of the above technical solution:

[0008] The high-pressure constant-current pump fluid inlet channel, the high-pressure constant-current pump fluid output channel and the control chamber are rectangular tube structures.

[0009] As a further description of the above technical solution:

[0010] The two side surfaces of the flow control valve are arranged in sealing contact with the sealing bottom plate.

[0011] As a further description of the above technical solution:

[0012] The flow control valve comprises a vertical plate and a horizontal plate, wherein the vertical plate is slidably mounted on a slideway, and the horizontal plate is vertically fixedly connected to the top of the vertical plate, and the horizontal plate is fixedly connected to the end of the inner rod of the cylinder.

[0013] As a further description of the above technical solution:

[0014] The transverse plate is arranged in contact with the notch of the slideway.

[0015] As a further description of the above technical solution:

[0016] The flow monitor is arranged at the bottom of the fluid output channel of the high-pressure constant-current pump.

[0017] Compared with the prior art, the utility model provides a new type of high-pressure constant-current pump, which has the following beneficial effects:

[0018] 1. In the utility model, the fluid channel of the high-pressure constant-flow pump is improved, a control room and a flow monitor are added, and the flow control valve is driven to rise and fall by real-time monitoring of the flow. The flow is regulated and controlled by partially cutting off the fluid, so that the actual flow is consistent with the standard flow;

[0019] 2. In the utility model, the interior of the control chamber adopts a sealing design and a guiding design to prevent fluid from soaking up. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the internal structure of the flow control valve of the utility model;

[0021] Figure 2 It is a schematic diagram of the cross-sectional structure of the fluid inlet channel, the fluid output channel and the control chamber of the high-pressure constant-current pump of the utility model.

[0022] Legend:

[0023] 1. Fluid inlet channel of high-pressure constant-current pump; 2. Fluid output channel of high-pressure constant-current pump; 3. Control room; 4. Slide; 5. Sealing bottom plate; 6. Mounting plate; 7. Flow monitor; 8. Flow control valve; 9. Cylinder. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example:

[0026] See also Figure 1-Figure 2 The utility model provides a new type of high-pressure constant-current pump, including a high-pressure constant-current pump fluid inlet channel 1 and a high-pressure constant-current pump fluid output channel 2, a control chamber 3 is provided above the connecting body between the high-pressure constant-current pump fluid inlet channel 1 and the high-pressure constant-current pump fluid output channel 2, slideways 4 are provided on both sides of the control chamber 3, a sealing bottom plate 5 is provided between the control chamber 3 and the connecting body between the high-pressure constant-current pump fluid inlet channel 1 and the high-pressure constant-current pump fluid output channel 2, a mounting plate 6 is provided above one side of the sealing bottom plate 5, the mounting plate 6 is fixedly connected to the control chamber 3, a flow monitor 7 is installed at the position of the high-pressure constant-current pump fluid output channel 2, a flow control valve 8 is slidably installed at the position of the slideway 4, a cylinder 9 is installed at the mounting plate 6, the inner rod end of the cylinder 9 is fixedly connected to the flow control valve 8, and the signal output end of the flow monitor 7 is connected to the signal input end of the cylinder 9.

[0027] Specifically, Figure 1 As shown, the high-pressure constant-current pump fluid inlet channel 1, the high-pressure constant-current pump fluid output channel 2, and the control chamber 3 are rectangular tube structures. The two sides of the flow control valve 8 are sealed and contacted with the sealing bottom plate 5. The rectangle is better for installing the control chamber 3 to intercept the flow, and the sealed contact prevents fluid overflow.

[0028] Specifically, Figure 1 As shown, the flow control valve 8 includes a vertical plate and a horizontal plate. The vertical plate is slidably installed on the slide 4, and the horizontal plate is vertically fixedly connected to the top of the vertical plate. The horizontal plate is fixedly connected to the inner rod end of the cylinder 9, and the horizontal plate is contacted with the groove of the slide 4. The flow control valve 8 will not overflow when it moves up and down, and it will not get stuck when it moves up and down.

[0029] Specifically, Figure 1 As shown, the flow monitor 7 is arranged at the bottom of the fluid output channel 2 of the high-pressure constant-current pump. After the flow is cut off, the fluid always flows through the bottom of the fluid output channel 2 of the high-pressure constant-current pump.

[0030] Working principle:

[0031] By setting a flow monitor 7 at the position of the high-pressure constant-current pump fluid output channel 2, and then additionally designing a control chamber 3 above the connecting body between the high-pressure constant-current pump fluid inlet channel 1 and the high-pressure constant-current pump fluid output channel 2, when the fluid enters the high-pressure constant-current pump fluid channel 1 and is output from the high-pressure constant-current pump fluid output channel 2, the flow monitor 7 monitors the unit flow in real time. When the flow fluctuation exceeds the set value, the flow monitor 7 sends a signal, and the cylinder 9 receives the signal and starts. The cylinder 9 rises or falls with the flow control valve 8, and the unit flow is controlled by partially intercepting the flow, so that the fluid output from the high-pressure constant-current pump fluid output channel 2 returns to the specified unit flow value. The slide 4 and the sealing bottom plate 5 play a sealing and guiding role to prevent the fluid from entering the control chamber 3.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel high-pressure constant-current pump, comprising a high-pressure constant-current pump fluid inlet channel (1) and a high-pressure constant-current pump fluid outlet channel (2), characterized in that: A control chamber (3) is provided above the connecting body of the high-pressure constant-current pump fluid inlet channel (1) and the high-pressure constant-current pump fluid output channel (2), slideways (4) are provided on both sides of the control chamber (3), a sealing bottom plate (5) is provided between the control chamber (3) and the connecting body of the high-pressure constant-current pump fluid inlet channel (1) and the high-pressure constant-current pump fluid output channel (2), a mounting plate (6) is provided above one side of the sealing bottom plate (5), the mounting plate (6) is fixedly connected to the control chamber (3), a flow monitor (7) is installed at the position of the high-pressure constant-current pump fluid output channel (2), a flow control valve (8) is slidably installed at the position of the slideway (4), a cylinder (9) is installed at the mounting plate (6), the inner rod end of the cylinder (9) is fixedly connected to the flow control valve (8), and the signal output end of the flow monitor (7) is connected to the signal input end of the cylinder (9).

2. A new type of high pressure constant current pump according to claim 1, characterized in that: The high-pressure constant-current pump fluid inlet channel (1), the high-pressure constant-current pump fluid output channel (2), and the control chamber (3) are rectangular tube structures.

3. A new type of high pressure constant current pump according to claim 1, characterized in that: The two side surfaces of the flow control valve (8) are arranged in sealing contact with the sealing bottom plate (5).

4. A novel high-pressure constant-current pump according to claim 1, characterized in that: The flow control valve (8) comprises a vertical plate and a horizontal plate, wherein the vertical plate is slidably mounted on the slideway (4), and the horizontal plate is vertically fixedly connected to the top of the vertical plate, and the horizontal plate is fixedly connected to the end of the inner rod of the cylinder (9).

5. A new type of high pressure constant current pump according to claim 4, characterized in that: The transverse plate is arranged in contact with the notch of the slideway (4).

6. A novel high-pressure constant-current pump according to claim 1, characterized in that: The flow monitor (7) is arranged at the bottom of the fluid output channel (2) of the high-pressure constant-current pump.

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