Device for preventing diaphragm pump exhaust system from freezing

By installing a buffer device in the diaphragm pump exhaust system, the problems of icing and moisture corrosion of the silencer are solved, and the normal operation of the exhaust system and the protection of the silencer are achieved.

CN223241603UActive Publication Date: 2025-08-19ZHEJIANG HOUYUAN TEXTILE
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Patent Information

Application Number
CN202422353954.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-10
Publication Date
2025-08-19
Estimated Expiration
2035-07-10

AI Technical Summary

Technical Problem

The diaphragm pump exhaust system is prone to freezing in low temperature environments, causing the silencer to freeze, affecting normal exhaust, and moisture enters the silencer to cause corrosion and performance degradation.

Method used

The buffer device is installed at the exhaust chamber interface of the main part of the diaphragm pump, including stainless steel pipes and liquid collection box. The gas buffers the heat absorption effect in the buffer device and heats up in front of the silencer. The liquid is discharged through the liquid collection box to prevent moisture from entering the silencer.

Benefits of technology

Effectively prevent the silencer from freezing, ensure the normal operation of the exhaust system, prevent moisture from corroding the silencer, and extend its service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of exhaust optimizing devices, and discloses a device for preventing an exhaust system of a diaphragm pump from freezing, which comprises a diaphragm pump main part and a silencer, a buffer device is fixedly mounted at a connector of an exhaust chamber of the diaphragm pump main part, and the buffer device is used for providing a reaction space for endothermic effect of exhaust gas of the diaphragm pump main part. The silencer is fixedly installed at the other end of the buffering device, the buffering device comprises a stainless steel pipe, a penetrating groove is formed in the bottom of the stainless steel pipe, a liquid collecting box is fixedly connected into the penetrating groove, a slope is arranged at the bottom of the inner wall of the liquid collecting box, and a liquid outlet hole penetrating to the bottom of the liquid collecting box is formed in the tail end of the slope. The buffer device is arranged at the exhaust chamber connector of the diaphragm pump main part and connected with the silencer, exhausted gas is buffered in the buffer device, the heat absorption effect generated during pressure reduction of the gas is conducted in the buffer device, and therefore the phenomenon that normal exhaust of an exhaust system is affected due to the fact that the interior of the silencer is frozen is avoided.
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Description

Technical Field

[0001] The utility model relates to the technical field of exhaust optimization devices, and more particularly to a device for preventing the icing of an exhaust system of a diaphragm pump. Background Art

[0002] The diaphragm pump exhaust system is one of the key components of the pneumatic diaphragm pump. It is responsible for discharging the low-pressure gas or exhaust gas generated during the working process out of the pump body to ensure the normal operation and efficiency of the pump. The pneumatic diaphragm pump exhaust system is mainly composed of an exhaust chamber, an exhaust chamber connector and a muffler. Its function is to absorb the excess energy generated by the gas pressure reduction, reduce the explosion sound and drain water in the process of converting high-pressure gas into normal-pressure gas. A good exhaust system operation state can effectively improve the operating efficiency of the pneumatic diaphragm pump and improve noise pollution in the workplace.

[0003] In the existing technology, since the exhaust chamber connection port and the muffler are directly connected, the heat absorption effect generated by the compressed gas decompression is directly transmitted to the muffler. When the working environment temperature is low, the muffler may be frozen and the pneumatic diaphragm pump may stop working due to poor exhaust. Secondly, since the exhaust system produces moisture, after the moisture enters the muffler, if it stays for a long time, it will cause the internal metal parts of the muffler to rust and corrode, thereby affecting its performance and life. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a device for preventing the diaphragm pump exhaust system from freezing, so as to solve the problem in the above-mentioned background technology that the traditional diaphragm pump exhaust easily causes the muffler to freeze and affects normal exhaust, and in addition, moisture in the exhaust system enters the inside of the muffler, affecting the performance and life of the muffler.

[0005] The utility model provides the following technical solution: a device for preventing the diaphragm pump exhaust system from freezing, comprising a diaphragm pump main component and a muffler, a buffer device fixedly installed at the interface of the diaphragm pump main component exhaust chamber, the buffer device is used to provide a reaction space for the heat absorption effect of the exhaust gas of the diaphragm pump main component, the muffler is fixedly installed at the other end of the buffer device, the buffer device comprises a stainless steel pipe, a through groove is provided at the bottom of the stainless steel pipe, a liquid collecting box is fixedly connected to the through groove, the bottom of the inner wall of the liquid collecting box is set to a slope, and the tail end of the slope is provided with a liquid outlet hole that penetrates to the bottom of the liquid collecting box.

[0006] Furthermore, a fixing ring is fixedly connected to the inner wall of the stainless steel tube, an air permeation disk is provided on one side of the fixing ring, a plurality of air holes are provided on the side wall of the air permeation disk, and a sponge block is fixedly connected to one side of the air permeation disk.

[0007] Furthermore, a push-pull mechanism is provided inside the stainless steel tube, wherein the control end of the push-pull mechanism is provided outside the stainless steel tube, and the output end of the push-pull mechanism is provided inside the stainless steel tube, and passes through the fixed ring to penetrate the air-permeating plate, and the sponge block is connected to the water-squeezing plate, and the sponge block is located between the air-permeating plate and the air-permeating plate, and the push-pull mechanism controls the displacement of the water-squeezing plate along the axis of the stainless steel tube.

[0008] Furthermore, the push-pull mechanism includes a movable shaft and a push-pull rod. The side wall of the movable shaft is slidably sleeved with a positioning frame, the positioning frame is fixedly connected to the inner wall of the air-permeating plate, one end of the movable shaft is connected to the water-squeezing plate, and the other end of the movable shaft is fixedly connected to a frame plate. The end of the inner wall of the frame plate away from the movable shaft is movably connected to a transmission rod, and a U-shaped joint is provided at the top of the transmission rod. The bottom end of the push-pull rod is movably sleeved with the U-shaped joint. The push-pull rod passes through the outside of the stainless steel pipe, and the angle between the frame plate and the transmission rod is an acute angle.

[0009] Furthermore, a hand pressure plate is fixedly connected to the top of the push-pull rod, and the bottom of the hand pressure plate is transmission-connected to the side wall of the stainless steel tube through a spring.

[0010] Furthermore, the inner wall of the fixing ring is configured as an outwardly expanding inclined surface.

[0011] Furthermore, a plurality of sliding columns are provided on one side of the air-penetrating disc, and the plurality of sliding columns are distributed in a ring shape along the axis of the air-penetrating disc, and the plurality of sliding columns pass through the fixing ring.

[0012] Furthermore, one end of the sliding column away from the air-penetrating disk is fixedly connected to an end disk, and the end disk is transmission-connected to the fixing ring via a second spring.

[0013] Furthermore, the stainless steel tube has a diameter of five centimeters, a length of forty centimeters, and a wall thickness of two millimeters; and the liquid outlet has a diameter of one centimeter.

[0014] Technical effects and advantages of this utility model:

[0015] The utility model provides a buffer device at the exhaust chamber interface of the diaphragm pump main part to connect with the muffler, so that the exhaust gas is buffered inside the buffer device, so that the heat absorption effect generated by the gas during pressure reduction is carried out inside the buffer device, thereby avoiding the ice condition inside the muffler that affects the normal exhaust of the exhaust system;

[0016] In addition, the buffer device is also provided with a liquid collection box for discharging the liquid in the exhaust system to prevent moisture from entering the muffler and causing damage to the muffler. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 For this utility model Figure 1 Schematic diagram of the buffer device structure;

[0019] Figure 3 For this utility model Figure 2 Schematic diagram of the cross-sectional structure of the stainless steel pipe;

[0020] Figure 4 For this utility model Figure 3 Schematic diagram of the push-pull mechanism structure;

[0021] Figure 5 For this utility model Figure 3 Schematic diagram of the cross-sectional structure of the fixing ring;

[0022] Figure 6 For this utility model Figure 3 Schematic diagram of the ventilation disk structure.

[0023] The accompanying drawings are marked as follows: 1. Diaphragm pump main part; 2. Muffler; 3. Buffer device; 4. Fixed ring; 5. Air permeation plate; 6. Sponge block; 7. Push-pull mechanism; 8. Water squeezing plate; 31. Stainless steel pipe; 32. Liquid collecting box; 33. Liquid outlet; 34. Slope; 71. Moving shaft; 72. Frame plate; 73. Transmission rod; 74. Push-pull rod; 75. Positioning frame; 76. Hand pressure plate; 77. Spring 1; 41. Outward-expanding inclined surface; 51. Sliding column; 52. End plate; 53. Spring 2. DETAILED DESCRIPTION

[0024] The specific implementation of the present utility model is described in detail below with reference to the accompanying drawings.

[0025] Reference Figure 1 and Figure 2 The utility model provides a device for preventing the diaphragm pump exhaust system from freezing, including a diaphragm pump main component 1 and a muffler 2. A buffer device 3 is fixedly installed at the interface of the exhaust chamber of the diaphragm pump main component 1. The buffer device 3 is used to provide a reaction space for the heat absorption effect of the exhaust gas from the diaphragm pump main component 1. The muffler 2 is fixedly installed at the other end of the buffer device 3. The buffer device 3 includes a stainless steel pipe 31. A through groove is provided at the bottom of the stainless steel pipe 31. A liquid collecting box 32 is fixedly connected to the through groove. The bottom of the inner wall of the liquid collecting box 32 is set as a slope 34. The tail end of the slope 34 is provided with a liquid outlet 33 that penetrates to the bottom of the liquid collecting box 32.

[0026] Since the gas discharged from the diaphragm pump main component 1 will quickly reduce pressure and expand, thereby generating a heat absorption effect, by setting a buffer device 3, when the gas is discharged from the exhaust chamber of the diaphragm pump main component 1, the gas first enters the stainless steel tube 31 of the buffer device 3. At this time, the heat absorption effect generated by the discharged gas occurs inside the stainless steel tube 31. After the gas is heated, it enters the muffler 2, thereby avoiding the freezing condition inside the muffler 2. After the discharged liquid enters the stainless steel tube 31, it is collected in the liquid collecting box 32 under the influence of gravity. The liquid is guided through the liquid outlet 33 to be discharged to the outside of the buffer device 3 through the slope 34 on the bottom of the inner wall of the liquid collecting box 32, thereby avoiding moisture from entering the muffler 2 and causing damage to the muffler 2. In addition, the liquid outlet 33 facilitates heat exchange between the inside and outside of the buffer device 3.

[0027] Reference Figure 3 The inner wall of the stainless steel tube 31 is fixedly connected with a fixing ring 4, and a ventilation disk 5 is provided on one side of the fixing ring 4. The side wall of the ventilation disk 5 is provided with a plurality of ventilation holes, and a sponge block 6 is fixedly connected to one side of the ventilation disk 5.

[0028] The gas discharged from the diaphragm pump main part 1 has a certain flow rate, and there is a situation in which the gas passes through the buffer device 3 and enters the interior of the muffler 2 before the gas heat absorption effect is completed. In order to avoid this, the device is provided with a sponge block 6, and the air flow flowing through the inside of the stainless steel pipe 31 is forced to circulate through the sponge block 6, thereby achieving the effect of reducing the gas flow rate and ensuring that the gas heat absorption effect is completed inside the buffer device 3. In addition, there is a certain amount of moisture in the exhaust gas, and the sponge block 6 can also absorb the moisture in the gas, further preventing the moisture from entering the interior of the muffler 2.

[0029] Reference Figure 3 A push-pull mechanism 7 is also provided inside the stainless steel tube 31. The control end of the push-pull mechanism 7 is provided outside the stainless steel tube 31, and the output end of the push-pull mechanism 7 is provided inside the stainless steel tube 31. It passes through the fixed ring 4, penetrates the air-through disk 5, and the sponge block 6 is connected to the water-squeezing disk 8. The sponge block 6 is located between the air-through disk 5 and the air-through disk 5. The push-pull mechanism 7 controls the displacement of the water-squeezing disk 8 along the axis of the stainless steel tube 31.

[0030] When the sponge block 6 absorbs water for a long time and becomes saturated, affecting the normal circulation of gas, a push-pull mechanism 7 is provided to control the water squeezing plate 8 to move laterally toward the air permeation plate 5, thereby squeezing the sponge block 6 to squeeze out the water.

[0031] Reference Figure 4The push-pull mechanism 7 includes a moving shaft 71 and a push-pull rod 74. The side wall of the moving shaft 71 is slidably sleeved with a positioning frame 75. The positioning frame 75 is fixedly connected to the inner wall of the air-permeating plate 5. One end of the moving shaft 71 is connected to the water squeezing plate 8. The other end of the moving shaft 71 is fixedly connected to a frame plate 72. The end of the inner wall of the frame plate 72 away from the moving shaft 71 is movably connected to a transmission rod 73. A U-shaped joint is provided at the top of the transmission rod 73. The bottom end of the push-pull rod 74 is movably sleeved with the U-shaped joint. The push-pull rod 74 passes through the outside of the stainless steel tube 31. The angle between the frame plate 72 and the transmission rod 73 is an acute angle.

[0032] When the push-pull rod 74 is pressed, the transmission rod 73 can be driven to flip along the connection end point between the transmission rod 73 and the frame plate 72. As the bottom end of the push-pull rod 74 gradually approaches the frame plate 72, the frame plate 72 can be driven to move laterally under the support effect of the transmission rod 73, so that the movable shaft 71 drives the water squeezing tray 8 to move laterally. Since there is an acute angle between the frame plate 72 and the transmission rod 73, when the push-pull rod 74 moves downward, the movable shaft 71 drives the water squeezing tray 8 toward the aeration tray 5, and when the push-pull rod 74 moves upward, the movable shaft 71 drives the water squeezing tray 8 away from the aeration tray 5.

[0033] Reference Figure 4 The top of the push-pull rod 74 is fixedly connected to a hand pressure plate 76, and the bottom of the hand pressure plate 76 is transmission-connected to the side wall of the stainless steel tube 31 through a spring 77.

[0034] By arranging the hand pressure plate 76, the spring 1 77 and the stainless steel tube 31, when the push-pull rod 74 moves downward, the elastic force of the spring 1 77 is small, and the push-pull rod 74 can be reset, thereby reducing the operating steps of the push-pull mechanism 7 and making the operation of the push-pull mechanism 7 easier.

[0035] Reference Figure 5 The inner wall of the fixing ring 4 is configured as an outwardly expanding inclined surface 41 .

[0036] When the liquid inside the sponge block 6 is squeezed out by the water squeezing plate 8, part of the squeezed liquid will pass through the vent holes of the ventilation plate 5 and be retained in the inner cavity of the fixed ring 4. In order to avoid this situation, the inner wall of the fixed ring 4 is set on the outward-expanding inclined surface 41. At this time, the liquid in the inner cavity of the fixed ring 4 slides out of the inner cavity of the fixed ring 4 along the outward-expanding inclined surface 41 under the influence of gravity.

[0037] Reference Figure 6 A plurality of sliding columns 51 are provided on one side of the air-penetrating disc 5 . The plurality of sliding columns 51 are distributed in a ring shape along the axis of the air-penetrating disc 5 . The plurality of sliding columns 51 pass through the fixing ring 4 .

[0038] When the sponge block 6 absorbs too much water and affects the gas circulation, the push-pull mechanism 7 needs to be operated manually, which may cause untimely processing. By setting a number of sliding columns 51 through the fixed ring 4, the air-penetrating disc 5 can be displaced. When the sponge block 6 blocks the gas, the gas has pressure to push the air-penetrating disc 5 to displace. At this time, there is a gap between the air-penetrating disc 5 and the fixed ring 4 to facilitate gas circulation.

[0039] Reference Figure 6 One end of the sliding column 51 away from the air-through disc 5 is fixedly connected to the end disc 52, and the end disc 52 is transmission-connected to the fixed ring 4 through the spring 2 53.

[0040] After the liquid inside the sponge block 6 is processed, the elastic force of the second spring 53 can automatically reset the air-permeating disk 5 .

[0041] Reference Figure 2 The stainless steel tube 31 has a diameter of five centimeters, a length of forty centimeters, and a wall thickness of two millimeters; the liquid outlet 33 has a diameter of one centimeter.

[0042] The above shows and describes the basic principles, main features, and advantages of the present invention. The present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for preventing icing of a diaphragm pump exhaust system, comprising a diaphragm pump main component (1) and a muffler (2), characterized in that: A buffer device (3) is fixedly installed at the interface of the exhaust chamber of the diaphragm pump main component (1), and the buffer device (3) is used to provide a reaction space for the heat absorption effect of the exhaust gas of the diaphragm pump main component (1); The muffler (2) is fixedly mounted at the other end of the buffer device (3). The buffer device (3) comprises a stainless steel tube (31). A through groove is provided at the bottom of the stainless steel tube (31). A liquid collecting box (32) is fixedly connected to the through groove. The bottom of the inner wall of the liquid collecting box (32) is provided with a slope (34). A liquid outlet (33) is provided at the tail end of the slope (34) and extends through the bottom of the liquid collecting box (32).

2. The device for preventing icing of a diaphragm pump exhaust system according to claim 1, characterized in that: A fixing ring (4) is fixedly connected to the inner wall of the stainless steel tube (31), a ventilation disk (5) is provided on one side of the fixing ring (4), a plurality of ventilation holes are provided on the side wall of the ventilation disk (5), and a sponge block (6) is fixedly connected to one side of the ventilation disk (5).

3. The device for preventing icing of a diaphragm pump exhaust system according to claim 2, characterized in that: A push-pull mechanism (7) is further provided inside the stainless steel tube (31). The control end of the push-pull mechanism (7) is provided outside the stainless steel tube (31). The output end of the push-pull mechanism (7) is provided inside the stainless steel tube (31) and passes through the fixed ring (4), penetrates the air-through disk (5), and the sponge block (6) is connected to the water-squeezing disk (8). The sponge block (6) is located between the air-through disk (5). The push-pull mechanism (7) controls the displacement of the water-squeezing disk (8) along the axis of the stainless steel tube (31).

4. The device for preventing icing of a diaphragm pump exhaust system according to claim 3, characterized in that: The push-pull mechanism (7) includes a moving shaft (71) and a push-pull rod (74). The side wall of the moving shaft (71) is slidably sleeved with a positioning frame (75). The positioning frame (75) is fixedly connected to the inner wall of the air-permeating plate (5). One end of the moving shaft (71) is connected to the water squeezing plate (8). The other end of the moving shaft (71) is fixedly connected to a frame plate (72). The end of the inner wall of the frame plate (72) away from the moving shaft (71) is movably connected to a transmission rod (73). The top end of the transmission rod (73) is provided with a U-shaped joint. The bottom end of the push-pull rod (74) is movably sleeved with the U-shaped joint. The push-pull rod (74) passes through the outside of the stainless steel pipe (31). The angle between the frame plate (72) and the transmission rod (73) is an acute angle.

5. The device for preventing icing of a diaphragm pump exhaust system according to claim 4, characterized in that: The top of the push-pull rod (74) is fixedly connected to a hand pressure plate (76), and the bottom of the hand pressure plate (76) is transmission-connected to the side wall of the stainless steel tube (31) via a spring 1 (77).

6. The device for preventing icing of a diaphragm pump exhaust system according to claim 3, characterized in that: The inner wall of the fixing ring (4) is configured as an outwardly expanding inclined surface (41).

7. The device for preventing icing of a diaphragm pump exhaust system according to claim 3, characterized in that: A plurality of sliding columns (51) are provided on one side of the air-penetrating disc (5), and the plurality of sliding columns (51) are distributed in a ring shape along the axis of the air-penetrating disc (5), and the plurality of sliding columns (51) penetrate the fixed ring (4).

8. The device for preventing icing of a diaphragm pump exhaust system according to claim 7, characterized in that: One end of the sliding column (51) away from the air-permeation disc (5) is fixedly connected to an end disc (52), and the end disc (52) is transmission-connected to the fixed ring (4) via a second spring (53).

9. The device for preventing icing of a diaphragm pump exhaust system according to claim 1, characterized in that: The stainless steel tube (31) has a diameter of five centimeters, a length of forty centimeters, and a wall thickness of two millimeters; the liquid outlet (33) has a diameter of one centimeter.