CN211819914U

CN211819914U - Electric control device for protecting Roots vacuum pump

Info

Publication number: CN211819914U
Application number: CN202020166335.1U
Authority: CN
Inventors: 李国旺
Original assignee: Tianjin Gangxin Perfume Co ltd
Current assignee: Tianjin Gangxin Perfume Co ltd
Priority date: 2020-02-13
Filing date: 2020-02-13
Publication date: 2020-10-30
Anticipated expiration: 2030-02-13

Abstract

The utility model discloses an electric control device for protecting a Roots vacuum pump, which relates to the field of electric control devices and provides the following proposal aiming at the problem that the prior Roots vacuum pump is inconvenient to use, which comprises an air inlet pipeline, wherein one end of the air inlet pipeline is fixedly provided with a filter cylinder, a filter screen is fixedly arranged on the filter cylinder, the top end of the filter screen is positioned at one side of the outer wall of the filter cylinder, and the bottom end of the filter screen is fixedly provided with a valve cover, one side of the upper end of the air inlet pipeline is fixedly provided with a placing cavity, a first reed matched with the inner wall of the placing cavity is placed in the placing cavity, a contact is fixedly arranged at the center of the first reed along the vertical direction, and the upper surface of the first reed is uniformly distributed and fixedly provided with a first buffer spring, and one end of the first buffer spring is fixedly connected with the top end of the inner wall of the placing cavity. The utility model discloses novel structure, and easy operation, the effect is better, and the practicality is high, suitable popularization.

Description

Electric control device for protecting Roots vacuum pump

Technical Field

The utility model relates to an electrically controlled device field especially relates to a protection roots vacuum pump's electrically controlled device.

Background

Under the high-speed development of modern society, various enterprises rapidly and stably increase the production force per se, so that a plurality of auxiliary equipment for production is needed for promotion, even in the daily life of the public group, the auxiliary equipment is accompanied with a plurality of auxiliary devices, particularly for a Roots vacuum pump, the Roots pump is a vacuum pump without internal compression, the compression ratio is very low, so that a high vacuum pump and a medium vacuum pump need a backing pump, the vacuum pump realizes air suction by pushing and pressing a pair of leaf-shaped rotors in a pump cavity to synchronously and reversely rotate to move air, two leaf-shaped rotors rotating synchronously in opposite directions are arranged in the pump, small gaps are formed among the rotors and between the rotors and the inner wall of a pump shell and are not in contact with each other, and the Roots vacuum pump obtains a long-term operation test on devices such as petroleum, chemical industry, plastics, pesticides, dynamic balance of a steam turbine rotor, aerospace space simulation and the like, and can be widely used in petroleum, chemical, metallurgy, textile and other industries. The vacuum pump accessory is used as a vacuum pump silencer and is used for noise control of the vacuum pump.

In the operation process of the roots vacuum pump, an auxiliary adjusting and controlling device, such as an electric control device, has to be needed, mainly for controlling various data in the operation process of the vacuum pump, and particularly for the air-extracting roots vacuum pump, the safety hazard caused by impurities doped in the device in long-term operation and even the change of internal pressure exists, so that the electric control device for protecting the roots vacuum pump is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a protection roots vacuum pump's electrically controlled device has solved the not convenient problem of use that current roots vacuum pump exists.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an electric control device for protecting a Roots vacuum pump comprises an air inlet pipeline, wherein a filter cylinder is fixedly installed at one end of the air inlet pipeline, a filter screen is fixedly installed on the filter cylinder, the top end of the filter screen is positioned on one side of the outer wall of the filter cylinder, a valve cover is fixedly installed at the bottom end of the filter screen, a placing cavity is fixedly installed at one side of the upper end of the air inlet pipeline, a first reed matched with the inner wall of the placing cavity is placed in the placing cavity, a contact is fixedly installed at the central position of the first reed along the vertical direction, first buffer springs are uniformly distributed and fixedly installed on the upper surface of the first reed, one end of each first buffer spring is fixedly connected with the top end of the inner wall of the placing cavity, the contact penetrates through one side of the top end of the placing cavity, an insulating sleeve is placed on the outer wall of the contact, and insulating sleeve's top fixed mounting has touch sensor, touch sensor's lower surface central point puts fixed mounting have with insulating sleeve matching bump the son, inlet duct's other end fixed mounting has a pressure release section of thick bamboo, the second reed has been placed to the inside of a pressure release section of thick bamboo, the lower surface of second reed is evenly distributed fixed mounting has second buffer spring, second buffer spring's one end and the bottom inner wall of a pressure release section of thick bamboo are fixed connection.

Preferably, an air seal ring is fixedly installed at the joint of the valve cover and the filter screen, and a bamboo charcoal rod is placed inside the filter screen.

Preferably, the outer wall of the pressure relief cylinder is uniformly distributed with air leakage holes.

Preferably, the both ends of admission line are all fixed mounting have connection port, be evenly distributed on connection port and the valve bonnet and open all to be equipped with the installation screw hole.

Preferably, the outer walls of the first reed and the second reed are both fixedly provided with sealing strips.

The utility model has the advantages that:

1. in the device, at first be provided with the cartridge filter, through placing the bamboo charcoal board in cartridge filter inside, at the pump body operation in-process, along with gaseous flow, gaseous can be abundant contact the bamboo charcoal stick, the debris that adulterate in can effectual filtering gas prevents to get into inside the pump body to can change at any time when the debris that accumulate on the bamboo charcoal stick is more, facilitate the use, to a certain extent, prolonged the life of the pump body.

2. In the device, at first be provided with touch sensor, when the gas pressure that the pump body inside flows is normal, the touch with bump the son and not contact, when atmospheric pressure increases and surpasss the biggest acceptance, the touch rises thereupon and bumps son contact, then touch sensor sends alarm signal, and send corresponding control command to the pump unit, simultaneously along with the rising of atmospheric pressure, the second reed rises to the top in exhaust hole, gaseous can carry out partial release, the gas pressure of effectual control pump body input, fine protection pump body, avoid appearing danger.

In conclusion, the device can effectively filter impurities, well protect the pump body from being damaged, and is simple to operate and high in practicability.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the touch sensing device of the present invention.

Fig. 3 is a schematic structural diagram of the filtering apparatus of the present invention.

Fig. 4 is a schematic structural view of the pressure relief device of the present invention.

Reference numbers in the figures: 1 admission line, 2 pressure release section of thick bamboos, 3 insulating sleeve, 4 touch sensor, 5 place the chamber, 6 cartridge filters, 7 touch, 8 first reeds, 9 first buffering, 10 touch, 11 bamboo charcoal stick, 12 filter screens, 13 second reeds, 14 second buffer spring, 15 valve gaps.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-4, an electric control device for protecting a roots vacuum pump comprises an air inlet pipe 1, a filter cylinder 6 is fixedly installed at one end of the air inlet pipe 1, a filter screen 12 is fixedly installed on the filter cylinder 6, the top end of the filter screen 12 is located at one side of the outer wall of the filter cylinder 6, a valve cover 15 is fixedly installed at the bottom end of the filter screen 12, a placing cavity 5 is fixedly installed at one side of the upper end of the air inlet pipe 1, a first reed 8 matched with the inner wall of the placing cavity 5 is placed inside the placing cavity 5, a contact 10 is fixedly installed at the center position of the first reed 8 along the vertical direction, first buffer springs 9 are uniformly distributed and fixedly installed on the upper surface of the first reed 8, one end of each first buffer spring 9 is fixedly connected with the top end of the inner wall of the placing cavity 5, the contact 10 penetrates through one side of the top end of the placing cavity 5, and, the bottom of insulating sleeve 3 with place chamber 5 for fixed connection, and the top fixed mounting of insulating sleeve 3 has touch sensor 4, touch sensor 4's lower surface central point puts fixed mounting and bumps 7 with insulating sleeve 3 matches, admission line 1's other end fixed mounting has a pressure release section of thick bamboo 2, second reed 13 has been placed to the inside of pressure release section of thick bamboo 2, the lower surface of second reed 13 is evenly distributed fixed mounting and has second buffer spring 14, the one end of second buffer spring 14 is fixed connection with the bottom inner wall of pressure release section of thick bamboo 2, valve gap 15 and the junction fixed mounting of filter screen 12 have an air-tight ring, and the inside bamboo charcoal stick 11 of having placed of filter screen 12, the outer wall of pressure release section of thick bamboo 2 is evenly distributed and has seted up disappointing hole, the equal fixed mounting in both ends of admission line 1 has connection port, it all is equipped with the mounting screw hole to be evenly distributed on connection port and the valve gap 15, and sealing strips are fixedly arranged on the outer walls of the first reed 8 and the second reed 13.

The working principle is as follows: firstly, the gas inlet pipeline 1 is connected with a Roots vacuum pump to be used, in the operation process, gas firstly passes through the filter 6 along with the gas inlet pipeline 1 and is fully contacted with the bamboo charcoal rod 11 in the filter screen 12, impurities are effectively filtered, when the bamboo charcoal rod 11 accumulates more impurities, the valve cover 15 can be opened, the bamboo charcoal rod 11 is replaced, in addition, when the gas flowing pressure is increased and gradually exceeds the maximum bearing capacity, the first reed 8 is upwards floated, the first buffer spring 10 is gradually contracted under the action of buoyancy until the touch piece 7 is contacted with the touch piece 10, then the touch sensor 4 sends a signal to send a control command to corresponding equipment in a unit, meanwhile, as the gas pressure is increased, the second reed 13 moves upwards until the lower surface of the second reed 13 exceeds a gas release hole, the gas is slowly released, the pressure in the gas inlet pipeline 1 is gradually reduced, then the first buffer spring 9 and the second buffer spring 14 gradually return to the initial positions, the touch piece 10 is separated from the touch piece 7, the second spring piece 13 descends to the position below the air release hole, and the device continues to operate.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. An electric control device for protecting a Roots vacuum pump comprises an air inlet pipeline (1) and is characterized in that a filter cylinder (6) is fixedly installed at one end of the air inlet pipeline (1), a filter screen (12) is fixedly installed on the filter cylinder (6), the top end of the filter screen (12) is located on one side of the outer wall of the filter cylinder (6), a valve cover (15) is fixedly installed at the bottom end of the filter screen (12), a placing cavity (5) is fixedly installed on one side of the upper end of the air inlet pipeline (1), a first reed (8) matched with the inner wall of the placing cavity (5) is placed in the placing cavity (5), a contact (10) is fixedly installed at the center position of the first reed (8) along the vertical direction, first buffer springs (9) are fixedly installed on the upper surface of the first reed (8) in an evenly distributed manner, one end of each first buffer spring (9) is fixedly connected with the top end of the inner wall of, touch (10) run through the top one side of placing chamber (5), and touch the outer wall of (10) and placed insulating sleeve (3), the bottom of insulating sleeve (3) with place chamber (5) and be fixed connection, and the top fixed mounting of insulating sleeve (3) has touch sensor (4), the lower surface central point of touch sensor (4) puts fixed mounting and has bumps son (7) with insulating sleeve (3) matching, the other end fixed mounting of admission line (1) has a pressure release section of thick bamboo (2), second reed (13) have been placed to the inside of a pressure release section of thick bamboo (2), the lower surface of second reed (13) is evenly distributed fixed mounting and has second buffer spring (14), the one end of second buffer spring (14) is fixed connection with the bottom inner wall of a pressure release section of thick bamboo (2).

2. An electric control device for protecting a Roots vacuum pump as claimed in claim 1, wherein an air seal ring is fixedly arranged at the joint of the valve cover (15) and the filter screen (12), and a bamboo charcoal rod (11) is arranged inside the filter screen (12).

3. An electric control device for protecting a roots vacuum pump according to claim 1, characterized in that the outer wall of the pressure relief cylinder (2) is provided with air release holes in uniform distribution.

4. An electric control device for protecting a roots vacuum pump as claimed in claim 1, wherein the inlet pipe (1) is fixedly provided with connecting ports at both ends, and the connecting ports and the valve cover (15) are uniformly provided with mounting screw holes.

5. An electric control device for protecting a roots vacuum pump according to claim 1, wherein the outer walls of the first spring plate (8) and the second spring plate (13) are fixedly provided with sealing strips.