A water filter for a compressor

Abstract

The utility model discloses a water filter for a compressor, comprising: a shell, the shell is cylindrical and open at both ends, a filter chamber is formed inside the shell, a sealing head is arranged on the top open end of the shell, an exhaust hole is arranged on the top of the sealing head, a water inlet is arranged on the shell, an upper sewage outlet is arranged on the shell, a filter element is located in the filter chamber, and the filter element is sleeved on a support rod, the bottom end of the support rod is arranged on a partition, the partition is welded to the inner wall of the shell, a compensation structure is arranged on the top end of the support rod, both ends of the water outlet cylinder are open, a water outlet chamber is formed inside the water outlet cylinder, the top open end of the water outlet cylinder is welded to the bottom open end of the shell, an annular flange is welded to the bottom open end of the water outlet cylinder, the annular flange is connected to the plane flange, the plane flange is used to seal the bottom open end of the water outlet cylinder, the water outlet is welded to the water outlet cylinder, and the lower sewage outlet is welded to the water outlet cylinder. The utility model has no debris hidden in the weld, improves the cleanliness during use, can reduce the installation height, and reduces the overall height.

Description

Technical Field

[0001] The utility model relates to the technical field of water-spraying compressors, filters circulating water in a compressor system, and is specifically a water filter for a compressor. Background Art

[0002] The bottom of the existing water filter is the water outlet cavity, which is usually welded with an elliptical head or a flat head to form a closed cavity for arranging the water outlet. This method requires welding on the outside, resulting in multiple welds formed in the water outlet cavity on the outside, and a gap seam on the inside. In this way, the iron filings from the cut of the hole, the welding slag remaining in the gap, and the welding slag or debris splashed into the water outlet cavity are difficult to check and clear out, and cleaning is not clean. In addition, the existing water filter uses a spiral spring structure for the compensation structure of its filter element, which has a large installation space and a high cost for manufacturing the spring, resulting in an increase in the shell height of the water filter. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a water filter for a compressor which has no debris hidden in the weld, improves the cleanliness during use, can reduce the installation height, and reduces the overall height.

[0004] The utility model is realized by the following technical scheme: a water filter for a compressor, comprising:

[0005] A shell, the shell is cylindrical and open at both ends, and the interior of the shell forms a filter cavity;

[0006] A sealing head, the sealing head is arranged on the top opening of the shell, and a vent hole is arranged on the top of the sealing head;

[0007] a water inlet, the water inlet being arranged on the housing;

[0008] An upper sewage outlet, the upper sewage outlet being arranged on the shell;

[0009] A filter element, the filter element is located in the filter cavity, and the filter element is sleeved on a support rod, the bottom end of the support rod is arranged on a partition, the partition is welded to the inner wall of the shell, and a compensation structure is arranged on the top end of the support rod;

[0010] A water outlet cylinder, both ends of the water outlet cylinder are open, a water outlet cavity is formed inside the water outlet cylinder, the top opening of the water outlet cylinder is welded to the bottom opening of the shell, an annular flange is welded to the bottom opening of the water outlet cylinder, the annular flange is connected to a plane flange, and the plane flange is used to seal the bottom opening of the water outlet cylinder;

[0011] A water outlet, the water outlet being welded on the water outlet cylinder;

[0012] A lower sewage outlet is welded on the water outlet cylinder.

[0013] Furthermore, the welding between the partition and the shell, the welding between the water outlet and the water outlet cylinder, the welding between the lower sewage outlet and the water outlet cylinder, the welding between the annular flange and the bottom opening of the water outlet cylinder, and the welding between the top opening of the water outlet cylinder and the bottom opening of the shell are all welded from the inside, and when welding, the partition is first welded to the shell, and then the water outlet and the water outlet cylinder are welded, the lower sewage outlet and the water outlet cylinder are welded, the annular flange is welded to the water outlet cylinder, and finally the top opening of the water outlet cylinder is welded to the bottom opening of the shell.

[0014] Furthermore, the compensation structure includes a sleeve, a slider, a wave spring, a pressure block, and a screw rod. The screw rod is welded to the top end of the support rod, the sleeve is at the bottom of the screw rod, the slider and the pressure block are respectively sleeved on the sleeve, and the pressure block is located above the slider. The side wall ring of the slider is provided with a step, the wave spring is arranged on the step, the height of the step is used to limit the maximum compression amount of the wave spring, and a nut is arranged on the top of the screw rod, and the nut is used to tighten the pressure block and the sleeve.

[0015] Furthermore, a weld mark between the partition and the shell is located on the water outlet cavity side.

[0016] Furthermore, the annular flange and the planar flange are connected by bolts.

[0017] Furthermore, a sealing ring is provided between the annular flange and the planar flange.

[0018] Furthermore, an O-ring is provided between the slider and the sleeve.

[0019] Furthermore, a flat washer is provided between the pressing block and the nut.

[0020] Furthermore, a sealing gasket is provided between the bottom end of the sliding block and the top end of the filter element.

[0021] Furthermore, it also includes a fixing frame, which is in a cross shape and is arranged on the bottom side of the planar flange.

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] 1. The utility model divides the shell into two parts by setting the shell to be cylindrical and open at both ends, and setting the water outlet cylinder to be open at both ends. First, a partition is welded at the bottom end of the shell, and the welding mark is on the water outlet cavity side. Then, an annular flange, a water outlet, and a lower sewage outlet are welded from the upper end opening of the water outlet cylinder. Finally, the top opening of the water outlet cylinder and the bottom opening of the shell are welded together, and the welding method is inner side welding, so that each welding position 31 is located on the inner side of the water outlet cavity, and the inner side gaps of each connection are filled by the welding position 31. The flat flange is connected with the annular flange by bolts, and the bottom opening of the water outlet cylinder is sealed by the flat flange, so that a sealed water outlet cavity is formed inside the water outlet cylinder, which can ensure that there is no gap on the side of the water outlet cavity, and that debris cannot be hidden at each connection, thereby ensuring the cleanliness of the water filter during the manufacturing or use process; in addition, since the bottom end of the water outlet cylinder is open, after the flat flange is removed from the water outlet cylinder, the inside of the water outlet cavity can be inspected and cleaned through the opening at the bottom end of the water outlet cylinder, and the water filter is used to filter the circulating water in the compressor system to ensure the cleanliness of the water, and after being filtered by the water filter, the water is sprayed back into the interior of the main unit, thereby ensuring the reliability of the main unit.

[0024] 2. By installing a slider and a pressure block on the sleeve, the pressure block is located above the slider, a step is arranged around the side wall of the slider, and the wave spring is arranged on the step, and the wave spring is limited between the pressure block and the step. Since the wave spring is thin and the installation height is low, the utility model adopts a wave spring to reduce the installation height, reduce the space, and reduce the overall height of the water filter. In addition, the wave spring is limited by the step to ensure that the wave spring is installed in place to prevent the wave spring from being crushed. The spring force of the wave spring cooperates with the slider to provide sliding compensation to prevent the filter element from getting wet or shrinking during use and detaching from the sealing gasket, so that the slider and the sealing gasket always press the end face of the filter element to prevent impurities from entering the inner side of the filter element from the end face of the filter element.

[0025] 3. An O-ring is arranged between the slider and the sleeve to block the external debris from entering the inner side of the filter element, thereby preventing the debris from entering the water outlet cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the utility model;

[0027] Figure 2 This is a schematic diagram of the structure of the filter element of the utility model;

[0028] Figure 3 It is a structural schematic diagram of the compensation structure of the utility model;

[0029] Figure 4 It is a bottom view of the utility model;

[0030] Figure 5 It is a structural schematic diagram of the welding of the shell and the water outlet cylinder of the utility model.

[0031] Explanation of the reference numerals: 1-shell, 2-filter chamber, 3-sealing head, 4-exhaust hole, 5-water inlet, 6-upper sewage outlet, 7-filter element, 8-support rod, 9-partition, 10-compensation structure, 11-water outlet cylinder, 12-water outlet chamber, 13-annular flange, 14-flat flange, 15-water outlet, 16-lower sewage outlet, 17-sleeve, 18-slider, 19-wave spring, 20-pressure block, 21-screw, 22-step, 23-nut, 24-bolt, 25-sealing ring, 26-O-ring, 27-flat washer, 28-sealing gasket, 29-fixing frame, 30-welding mark, 31-welding position, 32-welding point. DETAILED DESCRIPTION

[0032] Figures 1 to 5 The utility model provides a schematic structural diagram of a water filter for a compressor, comprising:

[0033] The shell body 1 is cylindrical and open at both ends, and a filter chamber 2 is formed inside the shell body 1 .

[0034] The sealing head 3 is arranged on the top opening of the shell 1 , and an exhaust hole 4 is arranged on the top of the sealing head 3 .

[0035] The water inlet 5 is arranged on the housing 1 .

[0036] The upper sewage outlet 6 is arranged on the shell 1 .

[0037] The filter element 7 is located in the filter chamber 2 and is sleeved on a support rod 8. The bottom end of the support rod 8 is arranged on a partition plate 9. The partition plate 9 is welded to the inner wall of the housing 1. A compensation structure 10 is arranged on the top end of the support rod 8.

[0038] The water outlet cylinder 11 has two open ends, a water outlet cavity 12 is formed inside the water outlet cylinder 11, the top opening of the water outlet cylinder 11 is welded to the bottom opening of the shell 1, and the bottom opening of the water outlet cylinder 11 is welded with an annular flange 13, the annular flange 13 is connected to the flat flange 14, and the flat flange 14 is used to seal the bottom opening of the water outlet cylinder 11.

[0039] The water outlet 15 is welded on the water outlet cylinder 11 .

[0040] The lower sewage outlet 16 is welded to the water outlet cylinder 11 .

[0041] A plurality of support rods 8 are provided, each support rod 8 is sleeved with a filter element 7 , and a compensation structure 10 is provided at the top end of each support rod 8 .

[0042] The welding between the partition 9 and the shell 1, the welding between the water outlet 15 and the water outlet cylinder 11, the welding between the lower sewage outlet 16 and the water outlet cylinder 11, the welding between the annular flange 13 and the bottom opening of the water outlet cylinder 11, and the welding between the top opening of the water outlet cylinder 11 and the bottom opening of the shell 1 all adopt inside welding, and when welding, the partition 9 is first welded to the shell 1, and then the water outlet 15 is welded to the water outlet cylinder 11, the lower sewage outlet 16 is welded to the water outlet cylinder 11, the annular flange 13 is welded to the water outlet cylinder 11, and finally the top opening of the water outlet cylinder 11 is welded to the bottom opening of the shell 1.

[0043] The weld mark 30 between the partition plate 9 and the shell 1 is located on the water outlet chamber 12 side.

[0044] The annular flange 13 and the flat flange 14 are connected via bolts 24 .

[0045] A sealing ring 25 is provided between the annular flange 13 and the plane flange 14 .

[0046] By providing the sealing ring 25 , the sealing performance of the planar flange 14 to the water outlet chamber 12 can be improved.

[0047] The utility model is divided into two parts, a shell 1 and a water outlet cylinder 11. First, a partition 9 is welded at the bottom end of the shell 1, and a welding mark 30 is on the side of the water outlet cavity 12. Then, the annular flange 13, the water outlet 15, and the lower sewage outlet 16 are welded from the upper end opening of the water outlet cylinder 11. The flat flange 14 is connected to the annular flange 13 by bolts 24. Finally, the top opening of the water outlet cylinder 11 and the bottom opening of the shell 1 are welded to each other. The welding of the top opening of the water outlet cylinder 11 and the bottom opening of the shell 1, the welding between the water outlet 15 and the water outlet cylinder 11, the welding between the lower sewage outlet 16 and the water outlet cylinder 11, and the welding between the annular flange 13 and the bottom opening of the water outlet cylinder 11 are all welded from the inside. The welding positions 31 of each connection are as shown in FIG. Figure 2 and Figure 5 As shown, the welding position 31 between the support rod 8 and the partition plate 9 is also located on the side of the water outlet cavity 12. By adopting the inner side welding method, the inner side gap of each connection is filled with the welding position 31, so that there is no gap on the side of the water outlet cavity 12, and there is no gap to hide debris, so that the water outlet cavity cannot hide debris, and the cleanliness of the water filter during use is guaranteed; and in addition to the inner side welding position 31 of each connection, the outer side gap of each connection is also welded and filled, and the welding position 32 is as shown in FIG. Figure 5As shown, by welding the inner and outer sides of each connection, double-pass welding has high strength and can improve the overall appearance. In addition, the plane flange 14 and the annular flange 13 are connected by bolts 24. By removing the bolts 24, the plane flange 14 can be removed, which is convenient for thorough cleaning and related process treatments such as pickling and passivation. The water filter is used to filter the circulating water in the compressor system and reuse the water to ensure the cleanliness of the water. After being filtered by the water filter, the water is sprayed back into the interior of the host, thereby ensuring the reliability of the host.

[0048] The compensation structure 10 includes a sleeve 17, a slider 18, a wave spring 19, a pressure block 20, and a screw rod 21. The screw rod 21 is welded to the top of the support rod 8. The sleeve 17 is at the bottom of the screw rod 21. The slider 18 and the pressure block 20 are respectively sleeved on the sleeve 17, and the pressure block 20 is located above the slider 18. The side wall ring of the slider 18 is provided with a step 22. The wave spring 19 is arranged on the step 22. The height of the step 22 is used to limit the maximum compression amount of the wave spring 19. A nut 23 is arranged on the top of the screw rod 21. The nut 23 is used to press the pressure block 20 and the sleeve 17.

[0049] By setting a step 22 on the side wall of the slider 18, the height of the step 22 is equal to the installation height of the wave spring 19, and the wave spring 19 is installed on the step 22, so that there is space for the installation height of the wave spring 19, ensuring that the wave spring 19 is installed in place and preventing the wave spring 19 from being crushed. If the filter element 7 shrinks, under the action of the spring force of the wave spring 19, the slider 18 slides down accordingly, pressing the end face of the filter element 7 firmly, preventing impurities from entering the inner side of the filter element 7 from the end face of the filter element 7. By using the thin sheet of the wave spring 19, the installation height can be reduced, the space can be reduced, the overall height of the water filter can be reduced, and the installation space and cost can be saved.

[0050] An O-ring 26 is provided between the slider 18 and the sleeve 17 .

[0051] By providing an O-ring 26 seal, it is possible to prevent foreign matter from entering the inside.

[0052] A flat washer 27 is provided between the pressing block 20 and the nut 23 .

[0053] A sealing gasket 28 is provided between the bottom end of the slider 18 and the top end of the filter element 7 .

[0054] The fixing frame 29 is also included. The fixing frame 29 is in a cross shape and is disposed on the bottom side of the plane flange 14 .

[0055] The fixing frame 29 is used to fix the water filter.

[0056] The above detailed description is a specific description of a feasible embodiment of the utility model. The embodiment is not intended to limit the patent scope of the utility model. Any equivalent implementation or modification that does not deviate from the utility model should be included in the patent scope of this case.

Claims

1. A water filter for a compressor, characterized in that: include: A shell, the shell is cylindrical and open at both ends, and the interior of the shell forms a filter cavity; A sealing head, the sealing head is arranged on the top opening of the shell, and a vent hole is arranged on the top of the sealing head; a water inlet, the water inlet being arranged on the housing; An upper sewage outlet, the upper sewage outlet being arranged on the shell; A filter element, the filter element is located in the filter cavity, and the filter element is sleeved on a support rod, the bottom end of the support rod is arranged on a partition, the partition is welded to the inner wall of the shell, and a compensation structure is arranged on the top end of the support rod; A water outlet cylinder, both ends of the water outlet cylinder are open, a water outlet cavity is formed inside the water outlet cylinder, the top opening of the water outlet cylinder is welded to the bottom opening of the shell, an annular flange is welded to the bottom opening of the water outlet cylinder, the annular flange is connected to a plane flange, and the plane flange is used to seal the bottom opening of the water outlet cylinder; A water outlet, the water outlet being welded on the water outlet cylinder; A lower sewage outlet is welded on the water outlet cylinder.

2. A water filter for a compressor according to claim 1, characterized in that: The welding between the partition and the shell, the welding between the water outlet and the water outlet cylinder, the welding between the lower sewage outlet and the water outlet cylinder, the welding between the annular flange and the bottom opening of the water outlet cylinder, and the welding between the top opening of the water outlet cylinder and the bottom opening of the shell are all welded from the inside, and when welding, the partition is first welded to the shell, and then the water outlet and the water outlet cylinder are welded, the lower sewage outlet and the water outlet cylinder are welded, the annular flange is welded to the water outlet cylinder, and finally the top opening of the water outlet cylinder is welded to the bottom opening of the shell.

3. A water filter for a compressor according to claim 1, characterized in that: The compensation structure includes a sleeve, a slider, a wave spring, a pressure block, and a screw rod. The screw rod is welded to the top end of the support rod, the sleeve is at the bottom of the screw rod, the slider and the pressure block are respectively sleeved on the sleeve, and the pressure block is located above the slider. The side wall of the slider is ring-arranged with a step, the wave spring is arranged on the step, and the height of the step is used to limit the maximum compression amount of the wave spring. A nut is arranged on the top of the screw rod, and the nut is used to press the pressure block and the sleeve.

4. A water filter for a compressor according to claim 2, characterized in that: The welding mark between the partition plate and the shell is located on the water outlet cavity side.

5. A water filter for a compressor according to claim 2, characterized in that: The annular flange and the plane flange are connected via bolts.

6. A water filter for a compressor according to claim 3, characterized in that: A sealing ring is arranged between the annular flange and the planar flange.

7. A water filter for a compressor according to claim 3, characterized in that: An O-ring is arranged between the slider and the sleeve.

8. A water filter for a compressor according to claim 3, characterized in that: A flat washer is arranged between the pressing block and the nut.

9. A water filter for a compressor according to claim 3, characterized in that: A sealing gasket is arranged between the bottom end of the sliding block and the top end of the filter element.

10. A water filter for a compressor according to claim 6, characterized in that: It also includes a fixing frame, which is in a cross shape and is arranged on the bottom side of the plane flange.

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