Compressor air inlet valve with controllable section

Abstract

The utility model relates to a compressor air inlet valve, in particular to a section-controllable compressor air inlet valve, which comprises a valve casing and an air inlet pipeline mounted on the valve casing. Two mounting plates which are symmetrically arranged are mounted on the air inlet pipeline; a mounting gap is formed between the two mounting plates; a turntable rotationally connected with the air inlet pipeline is arranged in the mounting gap; a rotating mechanism is arranged in the mounting gap, and the rotating mechanism can drive the rotating disc to rotate on the air inlet pipeline; a mounting gap is formed in the rotating mechanism, a plurality of groups of reducing mechanisms are arranged in the mounting gap, baffles are connected to the reducing mechanisms, and the reducing mechanisms can drive the multiple baffles to get close to each other or get away from each other when the rotating mechanism acts, so that the conduction area of the air inlet pipeline is reduced or increased. And through mutual cooperation of the rotating mechanism and the reducing mechanism, the conduction area of the air inlet pipeline can be effectively controlled, so that the working efficiency of the compressor is controlled.

Description

Technical Field

[0001] The utility model relates to an intake valve of a compressor, in particular to an intake valve of a compressor with controllable cross-section. Background Technique

[0002] A compressor is a driven fluid machine that raises low-pressure gas to high-pressure gas and is the heart of a refrigeration system. It sucks in refrigerant gas at low temperature and low pressure from the suction pipe, compresses it by driving a piston through the operation of an electric motor, and then discharges the refrigerant gas at high temperature and high pressure to the exhaust pipe, providing power for the refrigeration cycle.

[0003] An intake valve is connected to its intake pipe, which is used to control the entry of gas into the compressor and prevent the leakage of gas inside the compressor. A common intake valve of a compressor is the intake valve of a reciprocating compressor.

[0004] When the piston inside the compressor is interfered by the outside and the compression efficiency of air is enhanced or reduced, it is necessary to effectively control the rate of outside air flowing into the compressor to control the amount of air flowing into the compressor and prevent the compressor from being damaged due to long-term idling or overloading; the common reciprocating compressor intake valves on the market do not have the function of controlling the air flow rate. Content of the Utility Model

[0005] The purpose of the utility model is to provide an intake valve of a compressor with controllable cross-section to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] An intake valve of a compressor with controllable cross-section includes a valve housing and an intake pipe installed on the valve housing;

[0008] It is characterized in that two symmetrically arranged mounting plates are installed on the intake pipe; an installation gap is formed between the two mounting plates; a turntable rotatably connected to the intake pipe is arranged in the installation gap;

[0009] A rotating mechanism is arranged in the installation gap, and the rotating mechanism can drive the turntable to rotate on the intake pipe;

[0010] Multiple groups of diameter-changing mechanisms are arranged in the installation gap, a baffle is connected to the diameter-changing mechanism, and the diameter-changing mechanism can drive the multiple baffles to approach or move away from each other when the rotating mechanism acts, so as to reduce or increase the conduction area of the intake pipe.

[0011] For the intake valve of a compressor with controllable cross-section as described above: the rotating mechanism includes a worm installed on the mounting plate, and a turbine cooperating with the worm is installed on the turntable.

[0012] The compressor intake valve with controllable cross-section as described above: The variable-diameter mechanism includes a first chute opened on the turntable, and a protruding column connected to the baffle is slidably fitted in the first chute; a notch slidably fitted with the baffle is opened on the intake pipe; and a second chute is also opened on the intake pipe, and a protrusion slidably fitted with the second chute is installed on the baffle.

[0013] The compressor intake valve with controllable cross-section as described above: A fixed block is installed in the valve housing, a connecting rod is slidably fitted on the fixed block, a piston capable of being slidably fitted with the inner wall of the intake pipe is installed on the connecting rod, a spring is movably installed on the connecting rod, and both ends of the spring are respectively connected to the fixed block and the piston fixing pipe.

[0014] The compressor intake valve with controllable cross-section as described above: A plurality of arc-shaped protrusions are installed on one end of the worm outside the installation gap, and the arc-shaped protrusions can increase the friction coefficient of the outer circumference of the worm.

[0015] The compressor intake valve with controllable cross-section as described above: An installation notch is opened at one end of the intake pipe away from the valve housing, and the installation notch can be connected to an external device.

[0016] The compressor intake valve with controllable cross-section as described above: A connecting block is installed on the valve housing, and the connecting block can be connected to a controller.

[0017] Compared with the prior art, the beneficial effects of the present utility model are: Through the mutual cooperation of the rotating mechanism and the variable-diameter mechanism, the conduction area of the intake pipe can be effectively controlled, thereby controlling the working efficiency of the compressor. Since the rotation of the turntable is driven by the cooperation of the worm and the turbine, when the worm stops rotating, the variable-diameter mechanism will stop changing the conduction area of the intake pipe, and the conduction area will not change due to external interference. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of a compressor intake valve with controllable cross-section.

[0019] Figure 2 It is a schematic structural diagram of another perspective of a compressor intake valve with controllable cross-section.

[0020] Figure 3 It is a schematic structural diagram of a sectional view perspective of a compressor intake valve with controllable cross-section.

[0021] Figure 4 It is a schematic structural diagram of the connecting rod and the piston in a compressor intake valve with controllable cross-section.

[0022] Figure 5Schematic diagram of the rotating mechanism in the compressor intake valve with controllable cross-section.

[0023] Figure 6 Schematic diagram of the variable-diameter mechanism in the compressor intake valve with controllable cross-section.

[0024] Figure 7 Schematic diagram of the baffle and the intake pipe in the compressor intake valve with controllable cross-section.

[0025] In the figure: 1. Valve housing; 101. Fixed block;

[0026] 2. Intake pipe; 201. Mounting plate; 202. Notch; 203. Second chute; 204. Mounting gap;

[0027] 3. Connecting rod;

[0028] 4. Spring;

[0029] 5. Piston;

[0030] 6. Worm;

[0031] 7. Turntable; 701. Turbine; 702. First chute;

[0032] 8. Protruding column;

[0033] 9. Baffle; 901. Protrusion. Detailed implementation mode

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0035] Please refer to Figures 1 to 7 , as an embodiment of the present invention, the compressor intake valve with controllable cross-section includes a valve housing 1 and an intake pipe 2 installed on the valve housing 1;

[0036] Two symmetrically arranged mounting plates 201 are installed on the intake pipe 2; an installation gap 204 is formed between the two mounting plates 201; a turntable 7 rotatably connected to the intake pipe 2 is arranged in the installation gap 204;

[0037] A rotating mechanism is arranged in the installation gap 204, and the rotating mechanism can drive the turntable 7 to rotate on the intake pipe 2;

[0038] A plurality of diameter-changing mechanisms are arranged in the installation gap 204. A baffle 9 is connected to the diameter-changing mechanism. When the rotating mechanism operates, the diameter-changing mechanism can drive the plurality of baffles 9 to approach or move away from each other, so as to reduce or increase the conduction area of the intake pipe 2.

[0039] In this embodiment, when the compressor is working, the conduction area of the intake pipe 2 determines the intake rate of the compressor; when it is necessary to adjust the intake rate of the compressor, the rotating mechanism drives the turntable 7 to rotate to drive the plurality of baffles 9 to approach or move away from each other, so as to change the conduction area of the intake pipe 2.

[0040] When the baffles 9 approach each other, the conduction area of the intake pipe 2 becomes smaller, so that the intake rate of the compressor becomes lower; when the baffles 9 move away from each other, the conduction area of the intake pipe 2 becomes larger, so that the intake rate of the compressor becomes higher.

[0041] The installation gap formed between the two mounting plates 201 provides an installation space for the rotating mechanism and the diameter-changing mechanism; through the mutual cooperation of the rotating mechanism and the diameter-changing mechanism, the conduction area of the intake pipe 2 can be effectively controlled, thereby controlling the working efficiency of the compressor.

[0042] As a further solution of the present invention, the rotating mechanism includes a worm 6 installed on the mounting plate 201, and a turbine 701 cooperating with the worm 6 is installed on the turntable 7.

[0043] In this embodiment, when the worm 6 rotates, the worm 6 meshes with the turbine 701 and drives the turbine 701 to rotate, thereby driving the turntable 7 to rotate to drive the diameter-changing mechanism to operate.

[0044] Since the rotation of the turntable 7 is driven by the cooperation of the worm 6 and the turbine 701, when the worm 6 stops rotating, the diameter-changing mechanism will stop changing the conduction area of the intake pipe 2, and the conduction area will not change due to external interference.

[0045] As a further solution of the present invention, the diameter-changing mechanism includes a first chute 702 opened on the turntable 7, and a protruding column 8 connected to the baffle 9 is slidably fitted in the first chute 702; a notch 202 slidably fitted with the baffle 9 is opened on the intake pipe 2; and a second chute 203 is also opened on the intake pipe 2, and a protrusion 901 slidably fitted with the second chute 203 is installed on the baffle 9.

[0046] In this embodiment, when the turntable 7 rotates, the first chute 702 also rotates; the inner wall of the first chute 702 presses against the protruding column 8, causing the protruding column 8 to slide within the first chute 702; and the second chute 203 restricts the protrusion 901 (the protrusion 901 can only slide within the second chute 203). Therefore, when the first chute 702 rotates, the baffle 9 slides closer to or away from each other at the notch 202 to reduce or increase the conduction area of the intake pipe 2.

[0047] Increasing or decreasing the conduction area of the intake pipe 2 through the baffle 9 can effectively control the intake efficiency of the compressor intake valve.

[0048] As a further solution of the present invention, a fixed block 101 is installed inside the valve housing 1. A connecting rod 3 is slidably fitted on the fixed block 101. A piston 5 that can be slidably fitted with the inner wall of the intake pipe 2 is installed on the connecting rod 3. A spring 4 is movably installed on the connecting rod 3, and both ends of the spring 4 are fixedly connected to the fixed block 101 and the piston 5 respectively.

[0049] In this embodiment, when the compressor operates, the intake valve transports air from the outside to the inside of the compressor; when the compressor inhales, the air enters the valve housing 1 through the intake pipe 2 and then enters the compressor. At this time, the airflow will push the piston 5 to slide in the intake pipe 2 towards the fixed block 101, thereby compressing the spring 4. After the piston 5 separates from the intake pipe 2, the intake valve is in an open state. When the compressor does not inhale, the elastic force of the spring 4 will drive the piston 5 to slide in a direction away from the fixed block 101. When the piston 5 enters the intake pipe 2, the intake valve is in a closed state to prevent air from leaking out of the intake valve when the compressor compresses air, thereby affecting the working efficiency of the compressor.

[0050] As a further solution of the present invention, a plurality of arc-shaped protrusions are installed on one end of the worm 6 located outside the installation gap 204. The arc-shaped protrusions can increase the friction coefficient of the outer circumference of the worm 6.

[0051] In this embodiment, increasing the friction coefficient of the outer circumference of the worm 6 through the arc-shaped protrusions can facilitate the operator to turn the worm 6, thereby facilitating the adjustment of the conduction area of the intake pipe 2.

[0052] As a further solution of the present invention, an installation notch is provided at one end of the intake pipe 2 away from the valve housing 1. The installation notch can be connected to an external device.

[0053] In this embodiment, the installation notch is used for the intake valve to dock with an external device. The airtightness of the docking position can be effectively increased through the installation notch.

[0054] As a further solution of the present utility model, a connecting block is installed on the valve housing 1, and the connecting block can be connected to the controller.

[0055] In this embodiment, the controller can be connected to the intake valve through the connecting block, which is convenient for the assembly and maintenance of the compressor.

[0056] The above embodiments are exemplary rather than restrictive. Therefore, without departing from the spirit or basic characteristics of the present utility model, all technical solutions that can implement the present utility model in other specific forms are included in the present utility model.

Claims

1. A compressor intake valve with controllable cross-section, comprising a valve housing (1), and an intake duct (2) mounted on the valve housing (1); It is characterized in that Two symmetrically arranged mounting plates (201) are mounted on the air intake duct (2); a mounting gap (204) is formed between the two mounting plates (201); a rotating disk (7) rotatably connected to the air intake duct (2) is disposed in the mounting gap (204); A rotating mechanism is provided in the installation gap (204), and the rotating mechanism can drive the rotating disk (7) to rotate on the air intake duct (2); A plurality of groups of diameter-changing mechanisms are arranged in the installation gap (204), and baffles (9) are connected to the diameter-changing mechanisms. When the rotating mechanism is in operation, the diameter-changing mechanisms can drive the plurality of baffles (9) to move closer to or farther from each other, so as to reduce or increase the conduction area of ​​the air intake duct (2).

2. A compressor intake valve with controllable cross-section according to claim 1, characterized in that: The rotating mechanism comprises a worm (6) mounted on the mounting plate (201), and a turbine (701) matched with the worm (6) is mounted on the rotating disk (7).

3. A compressor intake valve with controllable cross-section according to claim 2, characterized in that: The diameter-changing mechanism comprises a first slide groove (702) provided on the rotating disk (7), a protruding column (8) connected to the baffle (9) being slidably engaged on the first slide groove (702); a notch (202) being slidably engaged with the baffle (9) is provided on the air intake duct (2); and a second slide groove (203) is also provided on the air intake duct (2), and a protrusion (901) being slidably engaged with the second slide groove (203) is installed on the baffle (9).

4. A compressor intake valve with controllable cross-section according to claim 1, characterized in that: A fixing block (101) is installed in the valve housing (1), a connecting rod (3) is slidably engaged with the fixing block (101), a piston (5) is installed on the connecting rod (3) and can be slidably engaged with the inner wall of the intake pipe (2), a spring (4) is movably installed on the connecting rod (3), and two ends of the spring (4) are respectively connected to the fixing block (101) and the piston (5) fixing pipe.

5. A compressor intake valve with controllable cross-section according to claim 2, characterized in that: A plurality of groups of arc-shaped protrusions are installed on one end of the worm (6) located outside the installation gap (204), and the arc-shaped protrusions can increase the friction coefficient of the outer periphery of the worm (6).

6. A compressor intake valve with controllable cross-section according to claim 1, characterized in that: An installation notch is provided at one end of the air intake pipe (2) away from the valve housing (1), and the installation notch can be connected to an external device.

7. A compressor intake valve with controllable cross-section according to claim 1, characterized in that: A connection block is mounted on the valve housing (1), and the connection block can be connected to a controller.

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