CN213574621U

CN213574621U - Screw vacuum pump utilizing exhaust cooling pump cavity

Info

Publication number: CN213574621U
Application number: CN202022368259.5U
Authority: CN
Inventors: 严峰; 黄莉; 张武装; 朱梦超; 严是爱
Original assignee: Suqian Unitechem Co ltd
Current assignee: Suqian Unitechem Co ltd
Priority date: 2020-10-22
Filing date: 2020-10-22
Publication date: 2021-06-29
Anticipated expiration: 2030-10-22

Abstract

The utility model relates to an utilize screw vacuum pump of exhaust cooling pump chamber, the vacuum pump includes condenser, muffler, base, the vacuum pump body and motor, the muffler, the vacuum pump body set up on the base, the vacuum pump body is connected to the base, and the vacuum pump body is connected with the motor, and wherein the condenser is connected with the vacuum pump body, and air inlet flange is connected to the air inlet, and the condenser both ends are equipped with condenser delivery port and condenser water inlet respectively, and the condenser intake pipe is connected with the nitrogen gas entry, and condenser retrieval and utilization pipe is connected with the gas vent. The technical scheme has compact and ingenious overall structure design, can save nitrogen and save cost.

Description

Screw vacuum pump utilizing exhaust cooling pump cavity

Technical Field

The utility model relates to a vacuum pump, concretely relates to utilize screw vacuum pump of exhaust cooling pump chamber belongs to chemical industry equipment technical field.

Background

The vacuum pump is obtained by pumping a pumped container by using a mechanical, physical, chemical or physicochemical methodVacuumA device or apparatus of (1). Vacuum pumps can be basically classified into two types, i.e., a gas trap pump and a gas transfer pump, according to the operating principle of the vacuum pump. It is widely used in metallurgy, chemical industry, food, electronic coating and other industries.

In the screw vacuum pump for chemical industry in the prior art, the pump cavity needs to be cooled by nitrogen, and 6Nm is consumed per minute³Nitrogen gas of 10 units/min, 60Nm³In the nitrogen gas per meter, twenty to thirty vacuum pumps are generally needed in a workshop, a nitrogen making machine with a large capacity is needed to be configured, so that the nitrogen gas is wasted to a certain extent, manpower and material resources are needed for maintenance, and the energy consumption is high, so that a new scheme is urgently needed to solve the technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model discloses just to the problem that exists among the prior art, provide an utilize screw vacuum pump of exhaust cooling pump chamber, this technical scheme overall structure design is compact ingenious, saves nitrogen gas, practices thrift the cost.

In order to realize the above-mentioned purpose, the technical scheme of the utility model as follows, an utilize screw vacuum pump of exhaust cooling pump chamber, the vacuum pump includes condenser, muffler, base, the vacuum pump body and motor, the muffler, the vacuum pump body set up on the base, the vacuum pump body is connected to the base, and the vacuum pump body is connected with the motor, and wherein the condenser is connected with the vacuum pump body, and air inlet flange is connected to the air inlet, and the condenser both ends are equipped with condenser delivery port and condenser water inlet respectively, and the condenser intake pipe is connected with the nitrogen gas entry, and condenser retrieval and utilization pipe is connected with the gas vent.

As an improvement of the utility model, the vacuum pump further comprises a steam purge valve and an air purge valve which are both arranged at the lower part of the air inlet check valve; after the equipment is used, air and steam are respectively swept, and the interior of the equipment is kept clean.

As an improvement of the utility model, the vacuum pump still includes air inlet, air inlet check valve and gas vent, and the air inlet setting is on air inlet check valve upper portion, and the gas vent setting is in vacuum pump side, and wherein air inlet and exhaust hole provide respectively admits air and exhaust.

As an improvement, the screw vacuum pump utilizing the exhaust cooling pump cavity further comprises a blind plate, a drain outlet and a water drain opening, wherein the blind plate is arranged on the upper part of the silencer, the drain outlet is arranged on the lower part of the silencer, and the water drain opening is arranged on the silencer. The blind plate is convenient for later-stage maintenance.

As an improvement of the utility model, the screw vacuum pump that utilizes exhaust cooling pump chamber still includes cooling gas relief pressure valve flowmeter, sets up on the vacuum pump body, and the effect is with being used for can adjusting the cooling gas flow.

As an improvement of the utility model, the vacuum pump body is provided with pump body recirculated cooling water inlet and pump body recirculated cooling water export.

As an improvement of the utility model, the vacuum pump still includes condenser retrieval and utilization pipe, and muffler recirculated cooling water exports, retrieval and utilization gas entry, retrieval and utilization gas air-vent valve, nitrogen gas flowmeter and water flowmeter, condenser retrieval and utilization pipe 22 set up on gas vent and condenser, and muffler recirculated cooling water exports the setting on the muffler, and retrieval and utilization gas entry sets up on the condenser, with the design of retrieval and utilization gas condensation, has saved nitrogen gas, has practiced thrift the cost.

Compared with the prior art, the utility model has the advantages that 1) the technical proposal has compact and ingenious overall structure design, can save nitrogen and cost; 2) this technical scheme adopts the design of recycle gas condensation, saves the operation of nitrogen gas machine and system, and the maintenance cost has saved the manpower.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a side view of the present invention;

fig. 3 is a top view of the present invention;

FIG. 4 is a top view of the condenser;

fig. 5 is a side view of the condenser.

In the figure: 1. steam purge valve, 2, condenser, 3, muffler, 4, base, 5, air inlet flange, 6, condenser water outlet, 7, condenser water inlet, 8, air purge valve, 9, vacuum pump, 10, nitrogen check valve, 11, air inlet, 12, air inlet check valve, 13, exhaust port, 14, blind plate, 15, sewage outlet, 16, water outlet, 17, muffler recirculated cooling water inlet, 18, nitrogen pressure reducing valve flowmeter, 19, motor, 20, pump body recirculated cooling water inlet, 21, pump body recirculated cooling water outlet, 22, condenser reuse pipe, 23, muffler recirculated cooling water outlet, 24, recycled gas inlet, 25, recycled gas pressure regulating valve, 26, nitrogen pressure regulating valve, 27, nitrogen flowmeter, 28, water flowmeter.

The specific implementation mode is as follows:

for the purpose of enhancing the understanding of the present invention, the following detailed description is made with reference to the accompanying drawings.

Example 1: referring to fig. 1, in order to achieve the above object, according to the technical solution of the present invention, a screw vacuum pump using an exhaust cooling pump cavity is characterized in that the vacuum pump includes a condenser 2, a silencer 3, a base 4, a vacuum pump body 9 and a motor 19, wherein the silencer 3 and the vacuum pump body 9 are disposed on the base 4, the base 4 is connected to the vacuum pump body 9, the vacuum pump body 9 is connected to the motor 19, the condenser 2 is connected to the vacuum pump body 9, an air inlet 11 is connected to an air inlet flange 5, a condenser outlet 6 and a condenser inlet 7 are disposed at two ends of the condenser 2, a condenser inlet pipe 24 is connected to a nitrogen inlet 25, a condenser recycling pipe 22 is connected to an exhaust port 13, and the vacuum pump further includes a steam cleaning valve 1 and an air cleaning valve 8, which are disposed at a lower portion of an; after equipment uses, has swept air and steam respectively, keeps the equipment inside clean, the vacuum pump still includes air inlet 11, air inlet check valve 12 and gas vent 13, and air inlet 11 sets up on 12 upper portions of air inlet check valve, and gas vent 13 sets up in the vacuum pump body 9 side, and wherein air inlet 11 and exhaust hole 13 provide respectively and admit air and exhaust, the screw vacuum pump that utilizes exhaust cooling pump chamber still includes blind plate 14, drain 15 and drain 16, and blind plate 14 sets up on 3 upper portions of muffler, and drain 15 sets up the lower part at muffler 3, and drain 16 sets up on muffler 3. The function of the blind plate 14 is to facilitate later-stage maintenance, and the screw vacuum pump utilizing the exhaust cooling pump cavity further comprises a cooling gas pressure reducing valve flowmeter 18 arranged on the vacuum pump body 9. Effects and effects: can adjust the cooling gas flow, be provided with pump body recirculated cooling water inlet 20 and pump body recirculated cooling water outlet 21 on the vacuum pump body 9, the vacuum pump still includes condenser retrieval and utilization pipe 22, muffler recirculated cooling water outlet 23, retrieval and utilization gas entry 24, retrieval and utilization gas air-vent valve 25, nitrogen gas air-vent valve 26, nitrogen gas flowmeter 27 and water flowmeter 28, condenser retrieval and utilization pipe 22 set up on gas vent 13 and condenser 2, muffler recirculated cooling water outlet 23 sets up on muffler 3, retrieval and utilization gas entry 24 sets up 2 on the condenser. The design of condensing with the reuse gas saves nitrogen, saves the cost working process: referring to fig. 1-4, when the vacuum pump is started, the air inlet valve 12 is opened, air enters the pump cavity from the air inlet 11, the two rotors synchronously rotate at high speed, the motor 19 drives the vacuum pump body 9 to rotate, a part of the air exhausted by the vacuum pump enters the condenser recycling pipe 22 to be cooled by the condenser 2, and then enters the pump cavity from the condenser air inlet pipe 24 through the nitrogen inlet 25, so that the nitrogen is replaced for cooling the pump cavity. No outside air enters the equipment, so that nitrogen is replaced, the safety of the equipment is guaranteed, and energy is saved.

It should be noted that the above-mentioned embodiments are not intended to limit the scope of the present invention, and all equivalent changes and substitutions made on the basis of the above-mentioned technical solutions are within the scope of the present invention as defined in the claims.

Claims

1. The utility model provides an utilize screw vacuum pump of exhaust cooling pump chamber, its characterized in that, the vacuum pump includes condenser, muffler, base, the vacuum pump body and motor, the muffler, the vacuum pump body setting are on the base, the vacuum pump body is connected to the base, and the vacuum pump body is connected with the motor, and wherein the condenser is connected with the vacuum pump body, and air inlet flange is connected to the air inlet, and the condenser both ends are equipped with condenser delivery port and condenser water inlet respectively, and the condenser intake pipe is connected with the nitrogen gas entry, and condenser retrieval and utilization pipe is connected with the gas vent.

2. The screw vacuum pump for cooling a pump chamber with an exhaust gas according to claim 1, further comprising a steam purge valve and an air purge valve, both disposed below the air inlet check valve.

3. The screw vacuum pump for cooling a pump chamber by using an exhaust gas according to claim 2, further comprising an air inlet provided at an upper portion of the air inlet check valve, an air inlet check valve provided at a side of the vacuum pump body, and an exhaust port provided at a side of the vacuum pump body, wherein the air inlet and the exhaust port provide the intake and the exhaust, respectively.

4. The screw vacuum pump according to claim 3, wherein the vacuum pump further comprises a blind plate, a drain outlet and a drain outlet, the blind plate is disposed on the upper portion of the silencer, the drain outlet is disposed on the lower portion of the silencer, and the drain outlet is disposed on the silencer.

5. A screw vacuum pump with exhaust gas cooling pump chamber according to claim 3 or 4, characterized in that the screw vacuum pump with exhaust gas cooling pump chamber further comprises a cooling gas pressure reducing valve flow meter arranged on the vacuum pump body.

6. The screw vacuum pump using an exhaust cooling pump cavity according to claim 5, wherein the vacuum pump body is provided with a pump body circulating cooling water inlet and a pump body circulating cooling water outlet.

7. The screw vacuum pump according to claim 6, further comprising a condenser recycle pipe, a muffler circulating cooling water outlet, a recycle gas inlet, a recycle gas pressure regulating valve, a nitrogen flow meter, a water flow meter, and a condenser recycle pipe, wherein the muffler circulating cooling water outlet is provided on the muffler, and the recycle gas inlet is provided on the condenser.