Air suction pipe assembly structure and air source heat pump water heater

Abstract

The utility model discloses an air suction pipe assembly structure and an air source heat pump water heater, and relates to the technical field of compressor equipment, the air suction pipe assembly structure comprises a compressor, the compressor is provided with an air suction port and an exhaust port, the air suction port is vertically upwards connected with a first vertical pipe, and the upper end of the first vertical pipe is connected with a flat straight pipe; a first inclined straight pipe which is downwards inclined in the direction away from one side of the compressor is connected to the flat straight pipe, a second vertical pipe is connected to the lower end of the first inclined straight pipe, a second inclined straight pipe which is downwards inclined is connected to the lower end of the second vertical pipe, a third inclined straight pipe which is upwards inclined is connected to the lower end of the second inclined straight pipe, and a third vertical pipe is connected to the upper end of the third inclined straight pipe; the connecting parts among the first vertical pipe, the flat straight pipe, the first inclined straight pipe, the second vertical pipe, the second inclined straight pipe, the third inclined straight pipe and the third vertical pipe are bent; the outer walls of the flat straight pipe, the second inclined straight pipe and the third inclined straight pipe are fixedly sleeved with vibration reduction blocks, the stress of the whole pipeline can be reduced, the amplitude is reduced through the three vibration reduction blocks, and the stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of compressor equipment, in particular to an air intake pipe component structure and an air source heat pump water heater. Background Art

[0002] The air source heat pump water heater is an energy-saving and environmentally friendly hot water supply device that can replace the boiler and is not limited by resources. It uses green and pollution-free refrigerant, absorbs heat from the air, and produces domestic hot water above 50 degrees through the work of the compressor. The COP value is above 3.0 throughout the year. The air source heat pump water heater is suitable for indoor swimming pools, hotels, villas, hair salons, bathing and foot massage, factories, schools, farms and other places that require hot water supply. After the water temperature of the unit is reached, the unit stops working to achieve energy saving. At present, the industry is dominated by fixed-frequency machines. However, a common problem of the compressor dedicated to the heat pump water heater is that the compressor starts and stops too much. The reason is that due to cost control, the compressor motor reaches a high displacement at a high speed, resulting in excessive vibration of itself, which will eventually lead to the unreasonable design of the unit's suction pipe assembly, which will cause excessive stress at the bend of the pipeline. The frequent and repeated impact of the unit's temperature shutdown will cause the risk of cracking in the local pipeline. In the prior art, such as the attached Figure 7 The suction pipe is connected to the suction port of the compressor, the first vertical section 100 is connected to the first bent portion 200 and extends in the direction opposite to the axis of the compressor, and the first bent portion 200 is a U-shaped structure with an opening facing downward, and then the extension pipeline 300 extends downward and then bends upward in a U shape to connect with the suction port of the four-way valve. In this way, the start and stop of the compressor have a greater impact on the pipeline structure, and there are no corresponding vibration reduction measures. The start and stop force of the compressor expands outward from the center of the compressor, and the air flow inside the pipeline structure flows from the outside to the center of the compressor. In this way, the collision of forces will concentrate stress at the bend and cause the risk of cracking. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the technical problem to be solved by the utility model is: how to reduce the structural stress and vibration degree of the suction pipeline of the compressor of the heat pump water heater.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] An air intake pipe assembly structure includes a compressor. The compressor is provided with an air intake port and an air exhaust port. The air intake port is vertically connected to a first vertical pipe upward. The upper end of the first vertical pipe is connected to a straight pipe. The upper end of the straight pipe is connected to a first inclined straight pipe inclined downward in a direction away from the compressor. The lower end of the first inclined straight pipe is connected to a second vertical pipe. The lower end of the second vertical pipe is connected to a second inclined straight pipe inclined downward. The lower end of the second inclined straight pipe is connected to a third inclined straight pipe inclined upward. The upper end of the third inclined straight pipe is connected to a third vertical pipe. The connecting parts among the first vertical pipe, the straight pipe, the first inclined straight pipe, the second vertical pipe, the second inclined straight pipe, the third inclined straight pipe and the third vertical pipe are all bent. The outer walls of the straight pipe, the second inclined straight pipe and the third inclined straight pipe are fixedly sleeved with vibration damping blocks.

[0006] Furthermore, the vibration damping block is cylindrical, and a counterweight ring is arranged inside the vibration damping block to limit the structure of the vibration damping block, increase the counterweight, and improve the vibration damping performance of the vibration damping block.

[0007] Furthermore, an annular limiting groove is provided on the outer wall of the vibration damping block, and the annular limiting groove is used to fix the vibration damping block by coil bundling. The external coil is inserted into the limiting groove, so that the vibration damping block is stably fixed, further improving the vibration damping performance.

[0008] Furthermore, taking the horizontal plane as the projection plane, the angle between the projection of the straight pipe and the projection of the line between the intake port and the exhaust port is in the range of 0-10°, which limits the straight pipe and the offset angle, and the smaller angle between the intake pipe and the compressor exhaust port, thereby improving the stability of the intake pipeline.

[0009] Furthermore, the acute angle between the projections of the second oblique straight tube and the third oblique straight tube on the vertical plane is 12°, and the vertical plane is the plane where the first vertical tube and the straight tube are located, which limits the relative inclination angle between the second oblique straight tube and the third oblique straight tube to achieve the best vibration reduction effect.

[0010] Furthermore, the angle between the second vertical tube and the second oblique straight tube is 139°, and the angle between the third vertical tube and the third oblique straight tube is 128°, which limits the inclination angle of the second oblique straight tube and the second oblique straight tube to achieve the best vibration reduction effect.

[0011] Furthermore, the acute angle between the projections of the second oblique straight tube and the third oblique straight tube on the horizontal plane is 70°.

[0012] Furthermore, the utility model also proposes an air source heat pump water heater, comprising the above-mentioned air intake pipe assembly structure.

[0013] The beneficial effects of the utility model are:

[0014] An integral air intake pipeline is formed by connecting the first vertical pipe, the straight pipe, the first oblique straight pipe, the second vertical pipe, the second oblique straight pipe, the third oblique straight pipe and the third vertical pipe in sequence, and the stress of the entire pipeline can be reduced through the bending connection of each pipeline, thereby improving the vibration resistance of the entire pipeline structure. In addition, three vibration damping blocks are respectively arranged on the outer walls of the straight pipe, the second oblique straight pipe and the third oblique straight pipe, which can reduce the amplitude by counterweight vibration reduction, thereby further improving the vibration reduction performance of the entire air intake pipeline system. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the connection relationship between the compressor and the suction pipeline structure of the utility model;

[0017] Figure 3 It is a top view schematic diagram of the connection relationship between the compressor and the suction pipeline structure of the utility model;

[0018] Figure 4 This is a left view of the suction pipeline structure of the utility model;

[0019] Figure 5 This is the front view of the suction pipeline structure of the utility model;

[0020] Figure 6 This is a top view of the suction pipeline structure of the utility model;

[0021] Figure 7 It is a schematic diagram of an existing air intake pipeline in the background technology;

[0022] Marked in the figure are, 1-first vertical pipe, 2-straight pipe, 3-first oblique straight pipe, 4-second vertical pipe, 5-second oblique straight pipe, 6-third oblique straight pipe, 7-third vertical pipe, 8-vibration damping block, 9-compressor, 10-three-way valve, 11-intake port, 12-exhaust port, 100-first vertical section, 200-first bend, 300-extension pipeline. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings.

[0024] According to the figure, Figure 2As shown, the embodiment of the present application proposes an air intake pipe assembly structure, including a compressor 9, wherein the compressor 9 is provided with an air intake port 11 and an air exhaust port 12, wherein the air intake port 11 is vertically upwardly connected to a first vertical pipe 1, wherein the upper end of the first vertical pipe 1 is connected to a straight pipe 2, wherein the straight pipe 2 is away from the compressor 9 and is connected to a first oblique straight pipe 3 which is arranged to be inclined downwardly in a direction away from the compressor 9, wherein the lower end of the first oblique straight pipe 3 is connected to a second vertical pipe 4, wherein the lower end of the second vertical pipe 4 is connected to a second oblique straight pipe 5 which is inclined downwardly, and the upper end of the second vertical pipe 4 is connected to a second oblique straight pipe 5 which is inclined downwardly. The lower end of the second oblique straight tube 5 is connected to the third oblique straight tube 6 inclined upward, and the upper end of the third oblique straight tube 6 is connected to the third vertical tube 7; the connecting parts among the first vertical tube 1, the straight tube 2, the first oblique straight tube 3, the second vertical tube 4, the second oblique straight tube 5, the third oblique straight tube 6 and the third vertical tube 7 are all bent; the third vertical tube 7 is used to connect the three-way valve 10, and the outer walls of the straight tube 2, the second oblique straight tube 5 and the third oblique straight tube 6 are fixedly sleeved with vibration damping blocks 8.

[0025] It should be noted that the end of the first oblique straight pipe 3 away from the first vertical pipe 1 is inclined outward away from the outer wall of the compressor 9, so that there is a certain distance between the entire intake pipeline and the outer wall of the compressor 9 to prevent the intake pipeline from vibrating and colliding with each other during operation, and the second oblique straight pipe 5 and the third oblique straight pipe 6 form a V-shaped pipe, and the second oblique straight pipe 5 and the third oblique straight pipe 6 form a surrounding structure for the liquid storage tank, which ensures the distance between the pipeline and the liquid storage tank and the compressor 9 while ensuring the extension of the pipeline, thereby improving the overall anti-touch and noise reduction performance.

[0026] The length of the straight pipe 2 is specifically greater than 30 mm, ensuring that the extension range of the entire intake pipeline is large enough, and the straight pipe 2 extends toward the center of the compressor 9. In this way, the gas flow direction of the intake pipeline is set in the same direction as the vibration energy of the compressor 9, which has little impact on the pipeline.

[0027] For the above-mentioned vibration damping block 8, specifically, the above-mentioned vibration damping block 8 is cylindrical, and a counterweight ring is arranged inside the above-mentioned vibration damping block 8, and the counterweight ring is preferably a copper ring, and the weight of the entire vibration damping block 8 is 12g, which reduces the pipeline amplitude and ensures the best vibration damping effect. In order to further improve the vibration damping performance of the vibration damping block 8, the outer wall of the above-mentioned vibration damping block 8 is provided with an annular limiting groove, and the annular limiting groove is used to fix the above-mentioned vibration damping block 8 by coil bundling. The above-mentioned coil is connected and fixed by a positioning piece on the external shell, so that the coil is connected to the annular limiting groove on the vibration damping block 8, so that the vibration damping block 8 is effectively positioned and fixed, and the movement tendency of the vibration damping block 8 is weakened, and the swing constraint is realized, thereby improving the vibration damping effect of the vibration damping block 8.

[0028] Moreover, the three vibration damping blocks 8 are correspondingly arranged on the straight pipe 2, the second inclined straight pipe 5 and the third inclined straight pipe 6, which can increase the restraining effect around the suction pipe. In this way, when the compressor 9 starts and stops, the vibration damping blocks 8 in the second inclined straight pipe 5 and the third inclined straight pipe 6 can restrain the inward and outward movement of the pipe.

[0029] Specifically, Figure 3 As shown, with the horizontal plane as the projection plane, the angle between the projection of the straight pipe 2 and the projection of the line between the air intake port 11 and the air exhaust port 12 is in the range of 0-10°, which can ensure that the straight pipe 2 extends toward the center of the compressor 9, and the smaller offset angle ensures better vibration reduction and anti-impact effects.

[0030] like Figure 4 As shown, with regard to the specific structural dimensions and connection angles of the entire intake pipeline, the acute angle included by the projections of the second oblique straight tube 5 and the third oblique straight tube 6 on the vertical plane is 12°, and the vertical plane is the plane where the first vertical tube 1 and the straight tube 2 are located. That is to say, the inclination of the second oblique straight tube 5 is greater than that of the third oblique straight tube 6, and the difference in inclination angles is 12°, thereby ensuring better stability and structural strength.

[0031] And if Figure 5 As shown, the angle between the second vertical tube 4 and the second oblique straight tube 5 is 139°, and the angle between the third vertical tube 7 and the third oblique straight tube 6 is 128°, forming a relatively stable connection structure. Figure 6 As shown, the acute angle between the projections of the second oblique straight tube 5 and the third oblique straight tube 6 on the horizontal plane is 70°.

[0032] The present embodiment also discloses an air source heat pump water heater, including the above-mentioned intake pipe assembly structure. By optimizing the pipeline structure, the gas flow direction in the intake pipe is made to be the same as the expansion force direction generated by the vibration of the compressor 9, the pipeline movement displacement constraint is increased, and the pipeline vibration amplitude is reduced by adding a vibration damping block 8 to increase the configuration. In this way, the risk of cracking the intake pipe is avoided, and the entire air source heat pump water heater can work more stably.

[0033] In summary, the utility model proposes an air intake pipe assembly structure, including a compressor 9, wherein the compressor 9 is provided with an air intake port 11 and an air exhaust port 12, wherein the air intake port 11 is vertically connected to a first vertical pipe 1 upwardly, and is characterized in that the upper end of the first vertical pipe 1 is connected to a straight pipe 2, and the straight pipe 2 is connected to a first oblique straight pipe 3 which is arranged to be inclined downwardly in a direction away from one side of the compressor 9, the lower end of the first oblique straight pipe 3 is connected to a second vertical pipe 4, the lower end of the second vertical pipe 4 is connected to a second oblique straight pipe 5 which is inclined downwardly, the lower end of the second oblique straight pipe 5 is connected to a third oblique straight pipe 6 which is inclined upwardly, and the upper end of the third oblique straight pipe 6 is connected to a third vertical pipe 7 The connecting parts among the first vertical tube 1, the straight tube 2, the first oblique straight tube 3, the second vertical tube 4, the second oblique straight tube 5, the third oblique straight tube 6 and the third vertical tube 7 are all bent; the outer walls of the straight tube 2, the second oblique straight tube 5 and the third oblique straight tube 6 are fixedly sleeved with vibration damping blocks 8, and the component positions and connection relationships of each connecting pipeline are optimized to enhance the structural strength and thus increase the displacement constraint of the pipeline movement, and the structural stress of the pipeline is reduced by means of a bending design, and three vibration damping blocks 8 are added at the same time to reduce the vibration amplitude of the pipeline to ensure the effect of vibration reduction and noise reduction, and the structure is simple, easy to process, and has good economic benefits.

Claims

1. An air intake pipe assembly structure, comprising a compressor (9), wherein the compressor (9) is provided with an air intake port (11) and an air discharge port (12), wherein the air intake port (11) is vertically connected to a first vertical pipe (1) upward, and characterized in that: The upper end of the first vertical tube (1) is connected to a straight tube (2), the upper end of the straight tube (2) is connected to a first inclined straight tube (3) arranged to be inclined downward in a direction away from the compressor (9), the lower end of the first inclined straight tube (3) is connected to a second vertical tube (4), the lower end of the second vertical tube (4) is connected to a second inclined straight tube (5) inclined downward, the lower end of the second inclined straight tube (5) is connected to a third inclined straight tube (6) inclined upward, and the upper end of the third inclined straight tube (6) is connected to a third vertical tube (7); the connection parts among the first vertical tube (1), the straight tube (2), the first inclined straight tube (3), the second vertical tube (4), the second inclined straight tube (5), the third inclined straight tube (6) and the third vertical tube (7) are all bent; the outer walls of the straight tube (2), the second inclined straight tube (5) and the third inclined straight tube (6) are all fixedly sleeved with vibration damping blocks (8).

2. The air intake duct assembly structure according to claim 1, characterized in that: The vibration damping block (8) is cylindrical, and a counterweight ring is arranged inside the vibration damping block (8).

3. The air intake pipe assembly structure according to claim 2, characterized in that: The outer wall of the vibration damping block (8) is provided with an annular limiting groove, and the annular limiting groove is used to fix the vibration damping block (8) by coil bundling.

4. The air intake duct assembly structure according to claim 1, characterized in that: Taking the horizontal plane as the projection plane, the angle between the projection of the straight tube (2) and the projection of the line connecting the air intake port (11) and the air exhaust port (12) is in the range of 0-10°.

5. The air intake duct assembly structure according to claim 1, characterized in that: The acute angle between the projections of the second oblique straight tube (5) and the third oblique straight tube (6) on the vertical plane is 12°, and the vertical plane is the plane where the first vertical tube (1) and the straight tube (2) are located.

6. The air intake duct assembly structure according to claim 1, characterized in that: The included angle between the second vertical tube (4) and the second oblique straight tube (5) is 139°, and the included angle between the third vertical tube (7) and the third oblique straight tube (6) is 128°.

7. The air intake duct assembly structure according to claim 1, characterized in that: The acute angle between the projections of the second oblique straight tube (5) and the third oblique straight tube (6) on the horizontal plane is 70°.

8. An air source heat pump water heater, comprising the air intake pipe assembly structure as described in any one of claims 1 to 7.

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