CN214247772U

CN214247772U - Movable type closed collecting system for centrifugal pump

Info

Publication number: CN214247772U
Application number: CN202120028674.8U
Authority: CN
Inventors: 高君
Original assignee: Daqing Petrochemical Engineering Co Ltd
Current assignee: Daqing Petrochemical Engineering Co Ltd
Priority date: 2021-01-06
Filing date: 2021-01-06
Publication date: 2021-09-21
Anticipated expiration: 2031-01-06

Abstract

The utility model provides a portable airtight collecting system for centrifugal pump, it includes: a traveling device; a closed collection vessel mounted on the walking device, the closed collection vessel having a chamber for containing collected gases and liquids; and one end of the collecting pipeline is connected with a vent pipeline of the centrifugal pump, and the other end of the collecting pipeline is connected with the closed collecting container so as to guide the gas and liquid mixture discharged from the centrifugal pump into the chamber of the closed collecting container. The utility model provides a portable airtight collecting system for centrifugal pump not only can effectively solve the centrifugal pump and put when clean oil gas to the influence of environment, guarantees to put the security in the pump house when clean, but also can retrieve the sump oil, increases the performance of enterprises.

Description

Movable type closed collecting system for centrifugal pump

Technical Field

The utility model relates to a centrifugal pump auxiliary assembly field, more specifically relates to a portable airtight collecting system for centrifugal pump.

Background

The non-double-end-face-sealed centrifugal pump needs emptying and emptying during switching operation, the oil gas is directly discharged to the atmosphere and the ground in the prior rough production emptying and emptying, and the emptying and emptying direct discharging operation is not allowed along with the continuous improvement of safety and environmental protection requirements. However, the problem of oil and gas emission due to emptying has not been properly solved.

SUMMERY OF THE UTILITY MODEL

In order to solve the discharge problem of the oil gas of centrifugal pump emptying and putting the production, the utility model provides a portable airtight collecting system for centrifugal pump, its adopt inclosed mode to put the oil gas of producing of emptying and collect the processing, oil gas is to the influence of environment when not only can effectively solving emptying and putting the clean, guarantees the security in the pump house when emptying and putting the clean, but also retrieves the sump oil, increases the performance of enterprises.

Based on the purpose, the following technical scheme is adopted:

according to the utility model discloses, a portable airtight collecting system for centrifugal pump is provided, it includes: a traveling device; a closed collection vessel mounted on the walking device, the closed collection vessel having a chamber for containing collected gases and liquids; and one end of the collecting pipeline is connected with a vent pipeline of the centrifugal pump, and the other end of the collecting pipeline is connected with the closed collecting container so as to guide the gas and liquid mixture discharged from the centrifugal pump into the chamber of the closed collecting container.

According to an embodiment of the invention, the collection line comprises a hose connected with the emptying line of the centrifugal pump.

According to the utility model discloses an embodiment, be provided with the sight glass on the collecting pipe.

According to the utility model discloses an embodiment, airtight collection container top is connected with gaseous phase discharge pipeline, gaseous phase discharge pipeline communicates with each other with outdoor atmosphere through the metal collapsible tube who prevents static.

According to the utility model discloses an embodiment, be provided with little positive pressure valve on the gaseous phase discharge pipeline, little positive pressure valve is in airtight collection container gas pressure in the cavity is opened when exceeding preset pressure, with in the outdoor atmosphere is discharged to some gas of collecting in the cavity.

According to the utility model discloses an embodiment, gaseous phase discharge line still includes the bypass line of little positive pressure valve, the bypass line is in when little positive pressure valve trouble will gas that collects in the cavity discharges in the outdoor atmosphere.

According to the utility model discloses an embodiment, airtight collection container top is connected with the gas pressure detection pipeline, be provided with on the gas pressure detection pipeline and be used for detecting airtight collection container the gas pressure's in the cavity pressure measurement device.

According to an embodiment of the utility model, be connected with liquid phase discharge pipeline below the airtight collection container, liquid phase discharge pipeline can be connected with other liquid storage device in order with the airtight collection container the liquid that collects in the cavity is discharged to in other liquid storage device.

According to the utility model discloses an embodiment, be provided with the level gauge that is used for detecting the liquid level of the liquid of collecting in the airtight collection container.

According to the utility model discloses an embodiment, running gear adopts the form of travelling car, is in including wheel and setting bottom plate on the wheel, wherein airtight collecting container installs on the bottom plate.

Adopt above-mentioned technical scheme, the utility model discloses following beneficial effect can be realized:

1. the oil gas generated by emptying and emptying the centrifugal pump can be collected in a closed manner by arranging the closed collection container, so that the oil gas is prevented from being directly discharged to the atmosphere and the ground to cause environmental pollution in a pump room, the safety in the pump room during emptying and emptying is ensured, dirty oil can be recovered, and the enterprise benefit is increased;

2. the closed collection system can be conveniently moved by arranging the travelling device, so that a plurality of centrifugal pumps which are not operated at the same time are allowed to share one closed collection system, the utilization rate of equipment is improved, and the additional expenditure for purchasing redundant equipment is saved;

3. the movable closed collection system adopts a micro-positive pressure closed collection container, gas and liquid mixture discharged from the centrifugal pump has enough time for gas-liquid separation, so that frequent direct discharge of oil gas is avoided, and material waste is avoided;

4. the utility model provides a portable airtight collecting system overall structure is simple, and is with low costs, and the practicality is strong.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some implementation cases of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of a mobile closed collection system for a centrifugal pump according to the present invention.

List of reference numerals

1-a walking device; 1-1-wheel; 1-2-a base plate; 1-3-support bar; 1-4-pushing hands; 2-sealing the collection container; 3-a collection pipeline; 3-1-hose; 3-2-view mirror; 3-3-valve; 4-a gas phase discharge line; 4-1-micro positive pressure valve; 4-2-antistatic metal hose; 4-3-a bypass line; 4-4-normally closed valve; 4-5-normally open valve; 4-6-normally open valve; 5-gas pressure detection pipeline; 5-1-normally open valve; 5-2-pressure gauge; 6-liquid phase discharge line; 6-1-valve; 7-liquid level meter.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings.

In the following description, it is to be understood that the terms "upper", "lower", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention.

As shown in fig. 1, the utility model provides a portable airtight collecting system for centrifugal pump includes: a traveling device 1; a closed collection container 2 mounted on the traveling device 1, the closed collection container 2 having a chamber for containing the collected gas and liquid; and a collecting pipeline 3, one end of the collecting pipeline 3 is connected with a vent pipeline of the centrifugal pump, and the other end of the collecting pipeline is connected with the closed collecting container 2, so that the gas and liquid mixture discharged from the centrifugal pump is guided into the chamber of the closed collecting container 2.

In the embodiment shown in the drawings, the walking device 1 is in the form of a mobile trolley, and specifically comprises wheels 1-1 and a bottom plate 1-2 arranged on the wheels 1-1, wherein the closed collection container 2 is fixedly mounted on the bottom plate 1-2. In order to facilitate the operator to push the walking device 1 to move, the walking device 1 is further provided with supporting rods 1-3 connected with the bottom plate 1-2 and pushing hands 1-4 arranged at one ends of the supporting rods 1-3 departing from the bottom plate 1-2. Through setting up running gear 1, can conveniently remove airtight collecting container 2, especially can make a round trip to remove airtight collecting container 2 between many centrifugal pumps to many centrifugal pumps of different operations can share same airtight collecting container 2, help improving equipment's utilization ratio like this, save the extra expenditure of purchasing unnecessary equipment simultaneously.

In the embodiment shown in the figures, the closed collection container 2 has a cylindrical shape and comprises a cylindrical barrel and a dome-shaped barrel cover. In one example, the specifications of the closed collection container 2 may be: 0.05 cubic meter ID (diameter of the bottom surface of the cylinder) 0.4 m.times.H (height of the cylinder) 0.4 m. It should be understood that the closed collection container 2 is not limited to the specific shape described above, and other shapes than the above may be employed as long as the weight of the container is easily moved.

The collecting line 3 comprises a hose 3-1 connected to the emptying line of the centrifugal pump. The advantages of using hose 3-1 are: the orientation of the centrifugal pump can be changed at will, and the centrifugal pump is convenient to be matched with a vent pipeline of the centrifugal pump. The collection pipeline 3 is provided with the sight glass 3-2, the sight glass 3-2 is arranged at the downstream of the hose 3-1 (along the flowing direction of the mixture), so that an operator can conveniently observe the sight glass during pump filling, the vent valve is closed in time, and material loss during pump filling operation is reduced. In particular, in practice, when the operator observes the liquid from the sight glass, indicating that the priming operation is complete, it is necessary to immediately close the blow valve of the centrifugal pump. A valve 3-3 for controlling the mixture to enter the closed collection container 2 is also arranged on the collection pipeline 3 at the position close to the closed collection container 2 and downstream of the sight glass 3-2.

After the gas and liquid mixture discharged from the centrifugal pump reaches the chamber of the closed collection container 2 through the collection pipeline 3, the gas and the liquid in the mixture are subjected to oil-gas separation under the action of gravity, the gas finally reaches the upper part of the chamber, and the liquid finally reaches the lower part of the chamber.

The upper part of the chamber of the closed collection container 2 is connected with a gas phase discharge pipeline 4, and the gas phase discharge pipeline 4 is communicated with the outdoor atmosphere. The gas phase discharge line 4 is provided with a slight positive pressure valve (one-way regulator valve, PV)4-1, and when the gas pressure in the closed collection container 2 exceeds a preset pressure (for example, 150Pa), the slight positive pressure valve 4-1 is opened to discharge the excessive pressure in the closed collection container 2 to the outdoor atmosphere. Through adopting the airtight collecting vessel of pressure-fired, can make from centrifugal pump combustion gas and liquid mixture have sufficient time to carry out gas-liquid separation, avoid the frequent direct vent of oil gas, help avoiding the material extravagant. In order to discharge the redundant pressure to the outdoor atmosphere, an anti-static metal hose 4-2 with optional orientation can be arranged at the downstream of the micro positive pressure valve 4-1, and the length of the anti-static metal hose 4-2 can be set or adjusted according to the actual production requirement. In order to ensure that the closed collection container 2 can still be normally vented during the failure of the micro positive pressure valve 4-1, a bypass line 4-3 bypassing the micro positive pressure valve 4-1 may be provided between the closed collection container 2 and the metal hose 4-2. A normally closed valve 4-4 is arranged on the bypass pipeline 4-3. During normal operation of the micro positive pressure valve 4-1, the normally closed valve 4-4 remains closed so that the bypass line 4-3 is not available for exhaust, and during failure of the micro positive pressure valve 4-1, the normally closed valve 4-4 may be opened slightly so that the bypass line 4-3 is available for exhaust. To facilitate the ability to close the circuit in which the micro positive valve 4-1 resides during failure of the micro positive valve 4-1, normally open valves 4-5 and 4-6 can be respectively arranged between the micro positive pressure valve 4-1 and the closed collection container 2 (specifically, the intersection point of the bypass pipeline 4-3 and the loop where the micro positive pressure valve 4-1 is located) and between the micro positive pressure valve 4-1 and the metal hose 4-2 (specifically, the intersection point of the bypass pipeline 4-3 and the loop where the micro positive pressure valve 4-1 is located), these normally open valves remain open during normal operation of the micro positive pressure valve 4-1, allowing the circuit in which the micro positive pressure valve 4-1 is located to be used for exhaust, during a micro positive pressure valve 4-1 failure, closes such that the circuit in which the micro positive pressure valve 4-1 is located cannot be used for exhaust. In order to ensure the operational reliability of the micro positive pressure valve 4-1 and find the fault of the micro positive pressure valve 4-1 in time, a gas pressure detection pipeline 5 is also connected above the chamber of the closed collection container 2. The gas pressure detection pipeline 5 is provided with a normally open valve 5-1 and a Pressure Gauge (PG)5-2 for detecting the gas pressure in the chamber, and the micro positive pressure valve 4-1 is indicated to be in failure under the condition that the reading displayed by the pressure gauge 5-2 indicates that the gas pressure in the closed collection container 2 exceeds the preset pressure but the micro positive pressure valve 4-1 is not automatically opened.

A liquid phase discharge line 6 is connected to the chamber lower part of the closed collection container 2 (in the embodiment shown in the drawing, the chamber bottom, and in other embodiments, the chamber side wall), and the liquid phase discharge line 6 can be connected to other liquid storage devices (for example, a dirty oil recovery tank) to discharge the liquid collected in the chamber of the closed collection container to the other liquid storage devices. The liquid phase discharge line 6 is provided with a valve 6-1 for controlling discharge.

A liquid level meter 7 is arranged in the closed collection container 2 so as to monitor the liquid level of the liquid collected in the closed collection container 2 in real time. In the embodiment shown in the figures, the gauge 7 is a direct view on-site gauge, also known as a glass plate gauge. In other embodiments, other types of fluid level gauges known in the art may also be used. When the reading of the level gauge 7 indicates that the liquid level reaches a high value (e.g., 0.36m), the liquid phase drain line 6 is connected to other liquid storage means and the valve 6-1 is opened to drain the collected liquid (i.e., dirty oil). In one example, the dirty oil may be received by a collection tanker and then sent by the collection tanker to a dirty oil recovery tank within the plant area.

The utility model provides a portable airtight collecting system uses with the centrifugal pump cooperation. Before the emptying and emptying operation of the centrifugal pump, the collecting pipeline 3 is connected with an emptying pipeline of the centrifugal pump, the gas discharge pipeline 4 is communicated to outdoor atmosphere, the liquid phase discharge pipeline 6 is kept closed, and then the emptying and emptying operation of the centrifugal pump can be started. After the dirty oil operation is finished, the collecting pipeline 3 is disconnected with the emptying pipeline of the centrifugal pump, the movable closed collecting system is pushed to another centrifugal pump needing emptying, and the operation is repeated. During operation, care should be taken to observe the readings of the gauge 7 and the pressure gauge 5-2.

To sum up, the utility model provides a portable airtight collecting system for centrifugal pump not only can effectively solve the centrifugal pump and put when clean oil gas to the influence of environment, guarantee to put the security in the pump house when clean, but also can retrieve the sump oil, increase performance in business. Additionally, the utility model provides a portable airtight collecting system simple structure, it is with low costs, the practicality is strong.

Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to suggest that the scope of the disclosure of embodiments of the present invention (including the claims) is limited to these examples; within the idea of embodiments of the invention, also combinations between technical features in the above embodiments or in different embodiments are possible, and there are many other variations of the different aspects of the embodiments of the invention as described above, which are not provided in detail for the sake of brevity. Therefore, any omission, modification, equivalent replacement, improvement, etc. within the spirit and principle of the embodiments of the present invention should be included in the protection scope of the embodiments of the present invention.

Claims

1. A mobile containment collection system for a centrifugal pump, comprising:

a traveling device;

a closed collection vessel mounted on the walking device, the closed collection vessel having a chamber for containing collected gases and liquids; and

a collection line having one end connected to a blowdown line of a centrifugal pump and the other end connected to the hermetic collection vessel to introduce a gas and liquid mixture discharged from the centrifugal pump into the chamber of the hermetic collection vessel.

2. The mobile contained collection system for a centrifugal pump of claim 1, wherein the collection line comprises a hose connected to the blowdown line of the centrifugal pump.

3. The mobile closed collection system for centrifugal pumps of claim 1 wherein the collection piping has sight glasses disposed thereon.

4. The mobile closed collection system for centrifugal pumps according to claim 1, wherein a gas phase discharge line is connected above the closed collection container and is communicated with the outdoor atmosphere through an antistatic metal hose.

5. The mobile contained collection system for centrifugal pumps of claim 4 wherein the gas phase discharge line is provided with a micro positive pressure valve that opens when the gas pressure in the chamber of the contained collection vessel exceeds a preset pressure to discharge a portion of the gas collected in the chamber to the outdoor atmosphere.

6. The mobile containment collection system for centrifugal pumps of claim 5 wherein the gas phase discharge line further comprises a bypass line bypassing the micro positive pressure valve, the bypass line discharging gas collected in the chamber to the outdoor atmosphere upon failure of the micro positive pressure valve.

7. The mobile closed collection system for a centrifugal pump according to claim 1, wherein a gas pressure detection pipeline is connected above the closed collection container, and a pressure detection device for detecting the gas pressure in the chamber of the closed collection container is arranged on the gas pressure detection pipeline.

8. The mobile contained collection system for a centrifugal pump of claim 1 wherein a liquid phase drain line is connected below the contained collection vessel and is connectable to a liquid storage device to drain liquid collected in the chamber of the contained collection vessel into the liquid storage device.

9. The mobile contained collection system for a centrifugal pump of claim 1 wherein a level gauge is disposed in the contained collection vessel for detecting the level of collected liquid.

10. The mobile contained collection system for a centrifugal pump of claim 1 wherein said running gear is in the form of a mobile cart comprising wheels and a base plate disposed on said wheels, wherein said contained collection vessel is mounted on said base plate.