Front condenser of vacuum pump

Abstract

The utility model discloses a vacuum pump preposed condenser, which relates to the technical field of vacuum pumps and comprises a first bottom plate and a second bottom plate, the second bottom plate is positioned on one side of the first bottom plate, a vacuum pump device is fixedly mounted at the top end of the first bottom plate, a mounting plate is fixedly mounted on one side of the top end of the second bottom plate, and the mounting plate is fixedly mounted on one side of the top end of the first bottom plate. Two symmetrically-distributed clamping plates are arranged on one side of the mounting plate, condenser equipment is arranged in the middles of the two clamping plates, two water inlet and outlet pipes used in cooperation with each other are fixedly mounted at the top end of the condenser equipment, and two symmetrically-distributed first blow-off pipes are fixedly mounted at the bottom end of the condenser equipment. An air outlet pipe is fixedly installed on one side of the lower portion of the condenser device and communicates with an air inlet of the vacuum pump device, the condenser is arranged at the air inlet end of the vacuum pump, it is guaranteed that the internal temperature of the vacuum pump in actual use is not too high, and cavitation of the vacuum pump is avoided.

Description

Technical Field

[0001] This utility model relates to the field of vacuum pump technology, specifically a vacuum pump pre-condenser. Background Technology

[0002] A vacuum pump is a device or equipment used to evacuate a container to obtain a vacuum. In layman's terms, a vacuum pump is a device that uses various methods to improve, generate, and maintain a vacuum in a closed space. However, in actual use, traditional water ring mechanical vacuum pumps suffer from low exhaust subcooling, resulting in excessive water content in the non-condensable gases entering the vacuum pump system. The overflow pipe is constantly in an overflow state, causing the vacuum pump to operate at a high liquid level for extended periods. This leads to a significant impact of the internal working fluid on the impeller, affecting the safe operation of the entire unit. Furthermore, the large amount of high-temperature steam entering the vacuum pump raises the temperature of the internal working fluid, greatly reducing its condensation capacity for non-condensable gases. This reduces the vacuum pump's output and affects its ability to maintain minimum back pressure, thereby impacting the operating efficiency of the turbine unit. Utility Model Content

[0003] To address the problem that high internal temperatures in vacuum pumps can lead to cavitation when high-temperature steam is drawn in, thus affecting their operation, this invention aims to provide a pre-condenser for vacuum pumps.

[0004] To solve the above technical problems, the present invention adopts the following technical solution: a vacuum pump pre-condenser, comprising a first base plate and a second base plate, the second base plate being located on one side of the first base plate, a vacuum pump device being fixedly installed at the top of the first base plate, an mounting plate being fixedly installed on one side of the top of the second base plate, two symmetrically distributed clamping plates being provided on one side of the mounting plate, a condenser device being provided in the middle of the two clamping plates, two mutually cooperating water inlet and outlet pipes being fixedly installed at the top of the condenser device, two symmetrically distributed No. 1 drain pipes being fixedly installed at the bottom of the condenser device, an air outlet pipe being fixedly installed on one side of the lower part of the condenser device, the air outlet pipe being interconnected with the air inlet of the vacuum pump device, an air inlet pipe being fixedly installed on the other side of the upper part of the condenser device, and a No. 2 drain pipe being fixedly installed in the middle of one side of the condenser device;

[0005] A rotating disk is fixedly mounted in the middle of the mounting plate, and multiple locking blocks arranged in a circular array are fixedly mounted on the outer side of the rotating disk. A ratchet is rotatably mounted in the middle of the mounting plate, and one side of each of the locking blocks is slidably engaged in the middle of the ratchet's teeth. Two symmetrically distributed second connecting rods are provided in the middle of the mounting plate, one of which is fixedly mounted in the middle of one side of the rotating disk, and both ends of the two second connecting rods are movably mounted with first connecting rods. Two symmetrically distributed sliders are slidably engaged on both sides of the mounting plate, and the middle of one side of each of the four sliders is movably mounted in the middle of one end of the first connecting rod, with the other side of each of the two sliders fixedly mounted in the middle of one side of the clamping plate.

[0006] In one possible implementation, the mounting plate has a limiting plate on the side away from the clamping plate, one side of each of the two sliders is fixedly mounted on the middle of one side of the limiting plate, and the middle of one side of the other second link is fixedly mounted on one side of the ratchet.

[0007] In one possible implementation, four symmetrically distributed limiting rods are fixedly installed on both sides of the mounting plate, and the two sides of the four sliders are slidably engaged with the outer surface of the limiting rods.

[0008] In one possible implementation, two symmetrically distributed mounting holes are provided on one side of each of the two limiting plates.

[0009] In one possible implementation, anti-slip pads are fixedly installed on opposite sides of both limiting plates.

[0010] In one possible implementation, a worm gear is rotatably mounted on the middle of the mounting plate, the outer side of the ratchet is fixedly mounted on the middle of the worm gear, and a worm is rotatably mounted on the upper part of the mounting plate, with the worm meshing with the worm gear.

[0011] In one possible implementation, a plurality of springs arranged in a ring array are fixedly mounted on the outer side of the rotating disk, and one side of each of the springs is fixedly mounted on the middle of one side of the locking block.

[0012] In one possible implementation, a handle is fixedly mounted on one side of the worm gear through the mounting plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This application can ensure that the internal temperature of the vacuum pump will not be too high during actual use by setting a condenser at the inlet end of the vacuum pump, thereby avoiding cavitation in the vacuum pump.

[0015] 2. This application enables convenient fixed installation of the condenser, thereby speeding up the equipment assembly process. By adjusting the position of the limiting plate, it is convenient to install the mounting plate in different ways or environments, which improves the practicality of the device, increases production efficiency, and reduces operating costs. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the condenser device structure of this utility model.

[0019] Figure 3 This is a schematic diagram of the connection structure between the mounting plate and the second fixing plate in this utility model.

[0020] Figure 4 This is a schematic cross-sectional view of the mounting plate of this utility model.

[0021] Figure 5 This is a schematic diagram of the disassembled structure of this utility model.

[0022] Figure 6 This is a schematic diagram of the connection structure between the rotating disk and the locking block in this utility model.

[0023] In the diagram: 1. First base plate; 11. Vacuum pump equipment; 2. Second base plate; 21. Condenser equipment; 22. Outlet pipe; 23. Inlet pipe; 24. Inlet and outlet water pipes; 25. No. 1 drain pipe; 26. No. 2 drain pipe; 3. Mounting plate; 31. Clamping plate; 32. Slider; 33. Limiting rod; 34. First connecting rod; 35. Second connecting rod; 36. Worm gear; 37. Ratchet; 371. Locking block; 38. Rotating disk; 381. Spring; 39. Worm; 391. Handle; 4. Limiting plate; 41. Mounting hole; 42. Anti-slip pad. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of this application, unless otherwise stated, "multiple" means two or more.

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example: Figure 1-6 As shown, this utility model provides a pre-condenser for a vacuum pump, including a first base plate 1 and a second base plate 2. The second base plate 2 is located on one side of the first base plate 1. A vacuum pump device 11 is fixedly installed on the top of the first base plate 1. By setting the vacuum pump device 11, which is a two-stage three-cone vacuum pump, bubbles can be expelled from the pump body, preventing bubbles from accumulating on the metal surface. At the same time, a condensing nozzle is provided at the inlet of the two-stage three-cone vacuum pump to pre-cool the gas passing through the suction port of the device, which can further cool most of the water vapor, reduce the volumetric flow rate of the suction medium, and thus improve the air-drying capacity of the device. The second base plate 2... A mounting plate 3 is fixedly installed on one side of the top of the device. Two symmetrically distributed clamping plates 31 are provided on one side of the mounting plate 3. A condenser device 21 is provided in the middle of the two clamping plates 31. Two inlet and outlet water pipes 24 that cooperate with each other are fixedly installed on the top of the condenser device 21. Two symmetrically distributed first drain pipes 25 are fixedly installed on the bottom of the condenser device 21. An outlet pipe 22 is fixedly installed on one side of the lower part of the condenser device 21. The outlet pipe 22 is connected to the air inlet of the vacuum pump device 11. An inlet pipe 23 is fixedly installed on the other side of the upper part of the condenser device 21. A second drain pipe 26 is fixedly installed in the middle of one side of the condenser device 21.

[0028] A rotating disk 38 is fixedly mounted in the middle of the mounting plate 3. Multiple ring-shaped locking blocks 371 are fixedly mounted on the outer side of the rotating disk 38. A ratchet 37 is rotatably mounted in the middle of the mounting plate 3. One side of each locking block 371 is slidably locked in the middle of the teeth of the ratchet 37. Two symmetrically distributed second connecting rods 35 are provided in the middle of the mounting plate 3. One side of the second connecting rod 35 is fixedly mounted in the middle of one side of the rotating disk 38. The two ends of the two second connecting rods 35 are movably mounted with first connecting rods 34. Two symmetrically distributed sliders 32 are slidably locked on both sides of the mounting plate 3. The middle of one side of each of the four sliders 32 is movably mounted in the middle of one end of the first connecting rod 34. The other side of each of the two sliders 32 is fixedly mounted in the middle of one side of the clamping plate 31.

[0029] In one possible implementation, a limiting plate 4 is provided on the side of the mounting plate 3 away from the clamping plate 31, one side of the two sliders 32 is fixedly installed on the middle of one side of the limiting plate 4, and the middle of one side of the other second link 35 is fixedly installed on one side of the ratchet 37.

[0030] In one possible implementation, four symmetrically distributed limiting rods 33 are fixedly installed on both sides of the mounting plate 3, and the two sides of the four sliders 32 are slidably locked on the outer surface of the limiting rods 33. By setting the limiting rods 33, the sliders 32 can be driven by the first connecting rod 34 to slide stably on the outer surface of the limiting rods 33.

[0031] In one possible implementation, two symmetrically distributed mounting holes 41 are provided on one side of each of the two limiting plates 4. By providing mounting holes 41, more options are available for fixing the limiting plates 4. The limiting plates 4 can be fixed to the wall by passing expansion screws through the mounting holes 41.

[0032] In one possible implementation, anti-slip pads 42 are fixedly installed on opposite sides of the two limiting plates 4. By setting the anti-slip pads 42, the limiting plates 4 are made more secure when clamping different objects.

[0033] In one possible implementation, a worm gear 36 is rotatably mounted on the middle of the mounting plate 3, and the outer side of the ratchet 37 is fixedly mounted on the middle of the worm gear 36. A worm 39 is rotatably mounted on the upper part of the mounting plate 3, and the worm 39 meshes with the worm gear 36. By setting the worm gear 36 and the worm 39, the structure of the worm gear 36 and the worm 39 has a self-locking function, thereby ensuring greater stability after the condenser equipment 21 is fixedly installed.

[0034] In one possible implementation, a plurality of springs 381 arranged in a ring array are fixedly installed on the outer side of the rotating disk 38. One side of each of the springs 381 is fixedly installed in the middle of one side of the locking block 371. By setting the springs 381, the locking block 371 can be locked in the toothed mouth of the ratchet 37 under the action of the springs 381.

[0035] In one possible implementation, a handle 391 is fixedly installed on one side of the worm gear 39 through the mounting plate 3. By providing the handle 391, rotating the handle 391 can drive the worm gear 39 to rotate.

[0036] Working principle: In actual use, high-temperature steam enters the condenser device 21 through the inlet pipe 23, and cold water enters through one side of the inlet and outlet pipes 24, circulates internally, and then exits from the other side of the inlet and outlet pipes 24, thereby cooling the condenser device 21 and preventing high-temperature steam from directly entering the vacuum pump device 11.

[0037] During the installation of the condenser device 21, the worm gear 39 is rotated by turning the handle 391, which causes the meshing worm wheel 36 to rotate, which in turn causes the ratchet 37 to rotate. Under the reaction force of the spring 381, the locking block 371 is locked in the teeth of the ratchet 37, thereby causing the rotating disk 38 to rotate, which in turn causes the second connecting rod 35 to rotate. In turn, in cooperation with the first connecting rod 34, the slider 32 is moved relative to the first connecting rod 34, which in turn causes the clamping plate 31 to move relative to the first connecting rod 34, thereby clamping and fixing the condenser device 21 and installing it on one side of the mounting plate 3.

[0038] By rotating the handle 391 in the opposite direction, the ratchet 37 is rotated in cooperation with the worm gear 36 and worm 39. At this time, the rotation direction will cause one end of the locking block 371 to slide out of the teeth of the ratchet 37, thereby preventing the rotating disk 38 from rotating. Then, with the cooperation of the first link 34 and the second link 35 of the other set, the distance of the limiting plate 4 can be adjusted, thereby clamping the rear fixing device and fixing the mounting plate 3. At the same time, by adjusting the distance of the limiting plate 4, the limiting plate 4 can be easily fixed to the wall of different widths after passing through the mounting hole 41 with the expansion screw.

[0039] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A vacuum pump pre-condenser, comprising a first base plate (1) and a second base plate (2), characterized in that: The second base plate (2) is located on one side of the first base plate (1). A vacuum pump device (11) is fixedly installed at the top of the first base plate (1). An installation plate (3) is fixedly installed on one side of the top of the second base plate (2). Two symmetrically distributed clamping plates (31) are provided on one side of the installation plate (3). A condenser device (21) is provided in the middle of the two clamping plates (31). Two water inlet and outlet pipes (24) that cooperate with each other are fixedly installed at the top of the condenser device (21). Two symmetrically distributed first sewage pipes (25) are fixedly installed at the bottom of the condenser device (21). An air outlet pipe (22) is fixedly installed on one side of the lower part of the condenser device (21). The air outlet pipe (22) is connected to the air inlet of the vacuum pump device (11). An air inlet pipe (23) is fixedly installed on the other side of the upper part of the condenser device (21). A second sewage pipe (26) is fixedly installed in the middle of one side of the condenser device (21). The mounting plate (3) has a rotating disk (38) fixedly mounted in the middle, and multiple ring-shaped locking blocks (371) fixedly mounted on the outer side of the rotating disk (38). A ratchet (37) is rotatably mounted in the middle of the mounting plate (3). One side of each of the multiple locking blocks (371) is slidably locked in the middle of the teeth of the ratchet (37). The mounting plate (3) has two symmetrically distributed second connecting rods (35) in the middle. One side of the second connecting rod (35) is fixedly mounted in the middle of one side of the rotating disk (38). Both ends of the two second connecting rods (35) are movably mounted with first connecting rods (34). Both sides of the mounting plate (3) are slidably locked with two symmetrically distributed sliders (32). One side of each of the four sliders (32) is movably mounted in the middle of one end of the first connecting rod (34). The other side of each of the two sliders (32) is fixedly mounted in the middle of one side of the clamping plate (31).

2. The vacuum pump pre-condenser as described in claim 1, characterized in that, The mounting plate (3) has a limiting plate (4) on the side away from the clamping plate (31). One side of the two sliders (32) is fixedly installed on the middle of one side of the limiting plate (4), and the middle of one side of the other second connecting rod (35) is fixedly installed on one side of the ratchet (37).

3. A vacuum pump pre-condenser as described in claim 1, characterized in that, Four symmetrically distributed limiting rods (33) are fixedly installed on both sides of the mounting plate (3), and the two sides of the four sliders (32) are slidably locked on the outer surface of the limiting rods (33).

4. A vacuum pump pre-condenser as described in claim 2, characterized in that, Two symmetrically distributed mounting holes (41) are provided on one side of each of the two limiting plates (4).

5. A vacuum pump pre-condenser as described in claim 2, characterized in that, Anti-slip pads (42) are fixedly installed on the opposite sides of the two limiting plates (4).

6. A vacuum pump pre-condenser as described in claim 1, characterized in that, A worm gear (36) is rotatably mounted in the middle of the mounting plate (3), and the outer side of the ratchet (37) is fixedly mounted in the middle of the worm gear (36). A worm (39) is rotatably mounted on the upper part of the mounting plate (3), and the worm (39) meshes with the worm gear (36).

7. A vacuum pump pre-condenser as described in claim 1, characterized in that, Multiple springs (381) arranged in a ring array are fixedly installed on the outer side of the rotating disk (38), and one side of each of the multiple springs (381) is fixedly installed in the middle of one side of the locking block (371).

8. A vacuum pump pre-condenser as described in claim 6, characterized in that, The worm (39) is fixedly mounted with a handle (391) on one side of the mounting plate (3).

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