Drainage structure of air storage tank of air compressor

Abstract

The utility model provides a drainage structure of an air storage tank of an air compressor, and belongs to the technical field of feed additive production equipment. Comprising a valve body connected to the bottom of a gas storage tank body, a longitudinally-arranged valve hole is formed in the valve body, a valve rod is slidably connected into the valve hole, the upper end of the valve rod is connected with a first plug through a tension spring, the middle of the valve rod is further longitudinally slidably connected with a second plug, and a reset spring is connected between the lower end of the second plug and the valve body. The lower end of the valve body is provided with a drainage connecting pipe communicated with the valve hole; when the plug I and the plug II respectively plug the upper end and the lower end of the valve hole, a gap between the valve rod and the valve hole forms a closed water storage cavity; in a natural state, the first plug opens the upper end of the valve hole, the second plug closes the lower end of the valve hole, and a limiting block located between the first plug and the second plug is fixedly arranged on the valve rod. When the valve rod is pulled down, the limiting block can push the second plug to open the lower end of the valve hole on the premise that the first plug blocks the upper end of the valve hole. The device has the advantages of low energy consumption and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of feed additive production equipment and relates to a drainage structure of an air storage tank of an air compressor. Background Art

[0002] The raw material fermentation process of feed additives involves the use of air compressors to control the pressure inside the fermentation tank. Air compressors are devices that compress air to increase air pressure. Water vapor carried in the air liquefies and settles at the bottom of the tank, affecting the degree of dryness of the air compressor exhaust. At present, the conventional practice is to set a detachable moisture-absorbing structure at the bottom of the tank, or to set a drain valve at the bottom of the tank. Both of the above methods require periodic shutdown and pressure relief to replace the moisture-absorbing medium or open the valve to drain water. Pressure relief causes energy waste and also affects the continuity of online operations. Utility Model Content

[0003] The purpose of the utility model is to provide a drainage structure for an air compressor gas storage tank in view of the above problems existing in the prior art. The technical problem to be solved by the utility model is how to discharge the accumulated water in the gas storage tank without releasing the pressure.

[0004] The purpose of the utility model can be achieved through the following technical solutions: a drainage structure for an air compressor gas tank, characterized in that it includes a valve body connected to the bottom of the gas tank body, the valve body is provided with a longitudinally arranged valve hole, a valve stem is slidably connected in the valve hole, the upper end of the valve stem is connected to a plug 1 through a tension spring, the middle part of the valve stem is also longitudinally slidably connected to a plug 2, the lower end of the valve stem is connected to a telescopic mechanism, a return spring is connected between the lower end of the plug 2 and the valve body, and the lower end of the valve body has a drainage pipe connected to the valve hole; when the plug 1 and the plug 2 respectively block the upper and lower ends of the valve hole, the gap between the valve stem and the valve hole forms a closed water storage chamber; in a natural state, the plug 1 opens the upper end of the valve hole, and the plug 2 closes the lower end of the valve hole, and a limit block located between the plug 1 and the plug 2 is fixedly arranged on the valve stem; when the valve stem is pulled down, the limit block can push the plug 2 to open the lower end of the valve hole on the premise that the plug 1 blocks the upper end of the valve hole.

[0005] Furthermore, the telescopic mechanism is a cylinder, and a push rod of the cylinder is connected to the lower end of the valve stem.

[0006] Compared with the existing technology, this solution has better air tightness and does not require shutdown for drainage.

[0007] Specifically, when the air pressure in the gas storage tank is relatively high, the first plug and the second plug respectively block the upper and lower ends of the valve hole. When the air pressure in the gas storage tank is relatively low, the first plug opens the upper end of the valve hole, but the second plug can block the lower end of the valve hole. When draining water under the high-pressure gas storage state, first control the valve rod to move upward to drive the upper end of the valve hole to open, and then control the valve rod to move downward to drive the first plug to close the upper end of the valve hole, and gradually pull down the valve rod until the second plug opens the lower end of the valve hole. In this way, the accumulated water remaining in the gas storage tank can first enter the valve hole through the upper end of the valve hole, and then be discharged from the lower end of the valve hole under the condition of closing the upper end of the valve hole. In this way, the air pressure in the gas storage tank will not be affected by draining water. In addition, when the air pressure in the gas storage tank is relatively large, the first plug and the second plug provide double sealing for the valve hole, and the airtightness is better. Description of the Drawings

[0008] Figure 1 It is a schematic diagram of the drainage structure when the first plug opens the upper end of the valve hole.

[0009] Figure 2 It is a schematic diagram of the drainage structure when the first plug and the second plug respectively close the upper and lower ends of the valve hole.

[0010] Figure 3 It is a schematic diagram of the drainage structure when the limit block is about to push the second plug to open the lower end of the valve hole.

[0011] Figure 4 It is a schematic diagram of the drainage structure when the second plug opens the lower end of the valve hole.

[0012] In the figure, 1. valve body; 2. valve hole; 3. valve rod; 4. tension spring; 5. first plug; 6. second plug; 7. return spring; 8. drainage connection pipe; 9. limit block. Detailed Embodiment

[0013] The following are specific embodiments of the present invention and in combination with the drawings, the technical solutions of the present invention will be further described, but the present invention is not limited to these embodiments.

[0014] As Figure 1The air compressor air storage tank drainage structure shown in the figure includes a valve body 1 connected to the bottom of the air storage tank body. There is a longitudinally arranged valve hole 2 inside the valve body 1. A valve rod 3 is slidably connected inside the valve hole 2. The upper end of the valve rod 3 is connected to a first plug 5 through a tension spring 4. The middle part of the valve rod 3 is also longitudinally slidably connected with a second plug 6. The lower end of the valve rod 3 is connected to a telescopic mechanism. A return spring 7 is connected between the lower end of the second plug 6 and the valve body 1. The lower end of the valve body 1 has a drainage connection pipe 8 communicating with the valve hole 2. When the first plug 5 and the second plug 6 respectively block the upper and lower ends of the valve hole 2, the gap between the valve rod 3 and the valve hole 2 forms a closed water storage cavity. In the natural state, the first plug 5 opens the upper end of the valve hole 2, the second plug 6 closes the lower end of the valve hole 2, and a limiting block 9 is fixedly arranged on the valve rod 3 between the first plug 5 and the second plug 6. When the valve rod 3 is pulled down, the limiting block 9 can push the second plug 6 to open the lower end of the valve hole 2 on the premise that the first plug 5 blocks the upper end of the valve hole 2. The telescopic mechanism is a cylinder, and the push rod of the cylinder is connected to the lower end of the valve rod 3.

[0015] As Figure 2 shown, when the air pressure in the air storage tank is relatively high, the first plug 5 and the second plug 6 respectively block the upper and lower ends of the valve hole 2. When the air pressure in the air storage tank is relatively low, as Figure 1 shown, the first plug 5 opens the upper end of the valve hole 2, but the second plug 6 can block the lower end of the valve hole 2. When draining water in the high-pressure air storage state, first control the valve rod 3 to move upward to drive the upper end of the valve hole 2 to open to the state as Figure 1 shown, and then control the valve rod 3 to move downward to drive the first plug 5 to block the upper end of the valve hole 2 to the state as Figure 2 shown, and gradually convert to the state as Figure 3 shown. Further pull down the valve rod 3 until the second plug 6 opens the lower end of the valve hole 2 to the state as Figure 4 shown. In this way, the accumulated water remaining in the air storage tank can first enter the valve hole 2 through the upper end of the valve hole 2, and then be discharged from the lower end of the valve hole 2 when the upper end of the valve hole 2 is closed. In this way, the air pressure in the air storage tank will not be affected due to drainage. In addition, when the air pressure in the air storage tank is relatively large, the first plug 5 and the second plug 6 provide double sealing for the valve hole 2, and the airtightness is better.

[0016] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art of the present invention can make various modifications or supplements to the described specific embodiments or use similar methods to replace them, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. An air compressor storage tank drainage structure, characterized in that It includes a valve body (1) connected to the bottom of the gas storage tank body. There is a longitudinally arranged valve hole (2) inside the valve body (1). A valve rod (3) is slidably connected inside the valve hole (2). The upper end of the valve rod (3) is connected to a first plug (5) through a tension spring (4). A second plug (6) is also longitudinally slidably connected to the middle of the valve rod (3). The lower end of the valve rod (3) is connected to a telescopic mechanism. A return spring (7) is connected between the lower end of the second plug (6) and the valve body (1). The lower end of the valve body (1) has a drain connection pipe (8) communicating with the valve hole (2); when the first plug (5) and the second plug (6) respectively block the upper and lower ends of the valve hole (2), the gap between the valve rod (3) and the valve hole (2) forms a closed water storage cavity; in the natural state, the first plug (5) opens the upper end of the valve hole (2), the second plug (6) closes the lower end of the valve hole (2), and a limit block (9) is fixedly arranged on the valve rod (3) between the first plug (5) and the second plug (6); when the valve rod (3) is pulled down, the limit block (9) can push the second plug (6) to open the lower end of the valve hole (2) on the premise that the first plug (5) blocks the upper end of the valve hole (2).

2. The drainage structure of an air compressor storage tank according to claim 1, characterized in that, The telescopic mechanism is a cylinder, and the push rod of the cylinder is connected to the lower end of the valve rod (3).

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