Oil gas tank test tool of screw compressor

Abstract

The embodiment of the utility model provides an oil and gas tank test tool of a screw compressor, which comprises a cylinder body with two communicated ends, and the cylinder body is detachably inserted into a gas inlet pipe of an oil and gas tank; a rotatable rotating shaft is arranged in the barrel body in the radial direction of the barrel body, and a turning plate is fixedly mounted on the rotating shaft; a positioning block for limiting the rotation of the rotating shaft is arranged on the cylinder body; the air inlet area of the cylinder can be adjusted by rotating the turning plate, so that the air inlet flow rate during testing is changed, and related function testing of the oil and gas tank is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of air compressors, in particular to an oil and gas tank testing tool for a screw compressor. Background Art

[0002] The oil and gas tank of the screw compressor needs to undergo relevant oil and gas tank function tests before use. However, since the diameter of the oil and gas tank inlet pipe is fixed, in some test conditions where the intake flow rate needs to be changed, such as verifying the impact of the intake flow rate on the oil and gas tank pre-separation effect, the existing test tooling is difficult to meet the requirements of changing the intake flow rate. Utility Model Content

[0003] In view of this, an embodiment of the utility model provides an oil and gas tank testing tool for a screw compressor, which can change the inlet gas flow rate of the oil and gas tank during the test process to meet the relevant testing requirements of the oil and gas tank.

[0004] An embodiment of the utility model provides an oil and gas tank testing tool for a screw compressor, comprising a cylinder with two ends connected, which can be detachably inserted into an air inlet pipe of the oil and gas tank; a rotatable shaft is provided radially inside the cylinder, and a flap is fixedly mounted on the shaft; a positioning block for limiting the rotation of the shaft is provided on the cylinder.

[0005] Optionally, both ends of the rotating shaft are movably inserted into the cylinder body, the upper end of the rotating shaft passes through the cylinder body and extends outside the cylinder body, and the lower end of the rotating shaft passes through the cylinder body and is movably inserted into the positioning block; a tooth-shaped groove is provided at the bottom of the positioning block, and a positioning tooth matched with the tooth-shaped groove is provided at the lower end of the rotating shaft; the rotating shaft can reciprocate relative to the cylinder body along its length direction so that the positioning tooth is engaged in or disengaged from the tooth-shaped groove.

[0006] Optionally, a return spring is provided between the rotating shaft and the cylinder, and the return spring is used to apply an elastic force to the rotating shaft to cause the positioning tooth to fit into the tooth-shaped groove.

[0007] Optionally, the outer end of the cylinder is provided with a connecting flange for connecting to an air inlet pipe of an oil and gas tank.

[0008] Optionally, an oblique cut is provided at the inner end of the cylinder, and the oblique cut is inclined along the tangential direction of the inner wall of the oil and gas tank; and the flap is installed at the oblique cut.

[0009] Optionally, a gap is formed between the flap and the cylinder.

[0010] The utility model has the following beneficial effects: the cylinder can be detachably inserted into the inlet of the oil and gas tank.

[0011] In the air pipe, the air intake area of ​​the cylinder can be adjusted by turning the flap, thereby changing the air intake flow rate during the test, so as to carry out relevant functional tests on the oil and gas tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0013] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the rotating shaft and the flap in the embodiment of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the positioning block in the embodiment of the utility model;

[0016] Figure 4 This is a diagram of the use state of an embodiment of the utility model;

[0017] The numbers in the figure represent:

[0018] 1. Cylinder; 2. Oil and gas tank; 3. Inlet pipe; 4. Connecting flange; 5. Rotating shaft; 6. Flap; 7. Positioning block; 8. Toothed groove; 9. Positioning tooth; 10. Reset spring; 11. Oblique cut; 12. Notch. DETAILED DESCRIPTION

[0019] 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, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the utility model. In addition, in the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0020] See also Figure 1As shown, the embodiment of the utility model provides a screw compressor oil and gas tank test tool, including a cylinder 1 with two ends connected, the cylinder 1 can be detachably inserted into the air inlet pipe 3 of the oil and gas tank 2, and specifically, a connecting flange 4 can be set at the outer end of the cylinder 1, such as Figure 4 As shown, the cylinder 1 can be connected to the air inlet pipe 3 of the oil and gas tank 2 through the connecting flange 4.

[0021] A rotatable shaft 5 is provided radially inside the cylinder 1, and a flap 6 is fixedly mounted on the shaft 5. The air intake area of ​​the cylinder 1 can be adjusted by rotating the flap 6, thereby changing the air intake flow rate during the test, so as to perform relevant functional tests on the oil and gas tank 2. A positioning block 7 is provided on the cylinder 1 for limiting the rotation of the shaft 5. Before the test, the flap 6 is first rotated to a suitable position, and after the flap 6 is positioned using the positioning block 7, the cylinder 1 is inserted into the air intake pipe 3 of the oil and gas tank 2 for relevant tests, which can effectively prevent the flap 6 from being turned over by the air flow during the test, thereby affecting the air intake flow rate during the test.

[0022] Specifically, both ends of the rotating shaft 5 are movably inserted into the cylinder 1, so that the rotating shaft 5 can reciprocate relative to the cylinder 1 along its length direction (there is a certain movement gap between the flap 6 and the cylinder 1). The upper end of the rotating shaft 5 penetrates the cylinder 1 and extends outside the cylinder 1, and the lower end of the rotating shaft 5 penetrates the cylinder 1 and is movably inserted into the positioning block 7; Figure 2 , Figure 3 As shown, a toothed groove 8 is provided at the bottom of the positioning block 7, and a positioning tooth 9 matched with the toothed groove 8 is provided at the lower end of the rotating shaft 5. The positioning tooth 9 can be inserted into or disengaged from the toothed groove 8 as the rotating shaft 5 moves up and down.

[0023] Furthermore, in the embodiment of the utility model, a return spring 10 is provided between the rotating shaft 5 and the cylinder 1, and the return spring 10 can apply elastic force to the rotating shaft 5 to make the positioning tooth 9 snap into the tooth-shaped groove 8. Pressing the rotating shaft 5 downward from the upper end can make the positioning tooth 9 disengage from the tooth-shaped groove 8, and release the positioning of the flap 6; after the flap 6 is rotated to a suitable position, the pressure on the rotating shaft 5 is released, and the positioning tooth 9 can be snapped into the tooth-shaped groove 8 again under the action of the return spring 10, and the adjusted flap 6 is positioned.

[0024] Furthermore, a bevel cut 11 may be provided at the inner end of the cylinder 1, and the flap 6 may be installed at the bevel cut 11. Figure 4 As shown, the bevel cut 11 is inclined along the tangent direction of the inner wall of the oil and gas tank 2, so that the oil and gas mixture entering from the bevel cut 11 can rotate along the inner wall of the oil and gas tank 2 and enter the tank body, which facilitates the collision and separation of the oil and gas mixture and the inner wall of the oil and gas tank 2. A notch 12 can also be provided between the flap 6 and the cylinder 1 to ensure that an air intake channel is always left between the flap 6 and the cylinder 1.

[0025] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the technical solution and its core idea of ​​the present invention. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A screw compressor oil and gas tank testing tool, characterized by: It comprises a cylinder with two ends connected, which can be detachably inserted into the air inlet pipe of the oil and gas tank; a rotatable shaft is arranged radially inside the cylinder, and a flap is fixedly installed on the shaft; a positioning block for limiting the rotation of the shaft is arranged on the cylinder.

2. The oil and gas tank testing tool for a screw compressor according to claim 1, characterized in that: The two ends of the rotating shaft are respectively movably inserted into the cylinder body, the upper end of the rotating shaft passes through the cylinder body and extends outside the cylinder body, and the lower end of the rotating shaft passes through the cylinder body and is movably inserted into the positioning block; a tooth-shaped groove is provided at the bottom of the positioning block, and a positioning tooth matched with the tooth-shaped groove is provided at the lower end of the rotating shaft; the rotating shaft can reciprocate relative to the cylinder body along its length direction so that the positioning tooth is engaged in or disengaged from the tooth-shaped groove.

3. The oil and gas tank testing tool for a screw compressor according to claim 2, characterized in that: A return spring is arranged between the rotating shaft and the cylinder body, and the return spring is used to apply an elastic force to the rotating shaft to make the positioning tooth snap into the tooth-shaped groove.

4. The oil and gas tank testing tool for a screw compressor according to claim 1, characterized in that: The outer end of the cylinder is provided with a connecting flange for connecting with the air inlet pipe of the oil and gas tank.

5. The oil and gas tank testing tool for a screw compressor according to claim 1, characterized in that: The inner end of the cylinder is provided with an oblique cut, and the oblique cut is inclined along the tangent direction of the inner wall of the oil and gas tank; the flap is installed at the oblique cut.

6. The oil and gas tank testing tool for a screw compressor according to claim 1, characterized in that: A gap is formed between the flap and the cylinder.

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