CN213331657U

CN213331657U - Sealed water washing system for high-speed pump

Info

Publication number: CN213331657U
Application number: CN202021739231.1U
Authority: CN
Inventors: 王若群; 席国军; 陈华义; 李延召; 秦新颖; 朱延昌; 张熙康; 李远航; 曹旭光; 刘京; 李毅
Original assignee: Pingdingshan Shenma Engineering Plastics Technology Development Co ltd
Current assignee: Pingdingshan Shenma Engineering Plastics Technology Development Co ltd
Priority date: 2020-08-19
Filing date: 2020-08-19
Publication date: 2021-06-01
Anticipated expiration: 2030-08-19

Abstract

The utility model provides a high-speed pump is with sealed water flushing system, include by sealed wash water pump, sealed washing reserve pump, the filter, the sealed water flushing pipeline to the sealed chamber of high-speed pump that heat exchanger and sealed flushing water tank constitute, still include the emergent wash water pipe of being connected with public engineering circulating water station, public engineering circulating water station provides the water source that pressure range is 480 supplyes additionally 1000Kpag for emergent wash water pipe, the water outlet department of emergent wash water pipe passes through the emergent branch pipe of high-speed pump, the emergent branch pipe of reserve pump communicates with the sealed chamber of high-speed pump and reserve pump respectively, be equipped with emergent wash water pipe pressure detector and emergent wash water pipe valve on the emergent wash water pipe. The utility model discloses can provide the high-pressure sparge water for the high-speed pump when current sealed washing unit loses sealed washing power, guarantee that high-speed pump and its stand-by pump can continue high-speed normal operation, ensured the continuous steady operation of production.

Description

Sealed water washing system for high-speed pump

Technical Field

The utility model relates to a sealed washing technical field of pump, concretely relates to high-speed pump is with sealed water rinse-system.

Background

The high-speed pump is one kind of centrifugal pump, and has the advantages of high single-stage lift, compact structure, convenient maintenance, high reliability, etc. and is widely used in chemical industry and other fields. When the high-speed pump high-speed operation, mechanical seal department in the high-speed pump seal chamber can produce great friction heat, stirring heat etc, simultaneously because the existence of high-speed pump internal pressure, can lead to the sealing end face sealing performance to descend, serious can lead to leaking, current high-speed centrifugal pump all can have one set of sealed water washing unit, utilize sealed washing water pump, sealed washing water tank and sealed washing pipeline constitute a confined circulation circuit, constantly to the high pressure side position of high-speed pump continuous injection liquid, when continuously taking away the heat of high-speed pump seal face, also utilize sealed rinse-system's pressure to seal sealed face, prevent that the medium from revealing.

However, the circulating power of the washing water in the existing sealed water washing device comes from a sealed washing water pump, although the sealed washing standby pump is generally arranged in the production, the sealed washing water pump and the sealed washing standby pump are both rotor pumps, the rotors are easy to wear, and the sealed washing water pump and the sealed washing standby pump are easy to damage, therefore, in the actual production, the situation that the sealed washing water pump and the standby pump can not be used can occur, the sealed washing water pump and the sealed washing standby pump need to be overhauled, at the moment, the whole sealing and flushing device loses circulating power and cannot play a role in protecting the high-speed pump, the centrifugal pump is easy to damage and leak under the condition of losing effective sealing flushing protection, so that the high-speed pump can not normally run, the high-speed pump has to be shut down, which would cause production interruptions and significant economic losses.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a high-speed pump is with sealed water washing system, it can provide high-pressure sparge water for high-speed pump and its stand-by pump when current sealed washing unit loses sealed washing power, has guaranteed that high-speed pump and its stand-by pump can continue high-speed normal operation, has ensured the continuous steady operation of production.

The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be:

a sealed water flushing system for a high-speed pump comprises a sealed flushing water pump, a sealed flushing standby pump, a filter, a heat exchanger and a sealed flushing water tank, wherein an outlet of the sealed flushing water tank is connected with inlets of the sealed flushing water pump and the sealed flushing standby pump through pipelines, outlets of the sealed flushing water pump and the sealed flushing standby pump are connected to an inlet of the filter through a pipeline, a sealed flushing pressure detector is arranged on an outlet pipeline of the filter, an outlet pipeline of the filter is connected to sealed cavities of the high-speed pump and the standby pump, the sealed cavities of the high-speed pump and the standby pump are connected with an inlet of the heat exchanger through a pipeline, an outlet of the heat exchanger is connected to the sealed flushing water tank through a pipeline, the sealed flushing system further comprises an emergency flushing water pipe connected with a public engineering circulating water station, and the public engineering circulating water station provides a water source with a, the emergency flushing water pipe is characterized in that a water outlet of the emergency flushing water pipe is communicated with a sealing cavity of the high-speed pump and a sealing cavity of the standby pump through a high-speed pump emergency branch pipe and a standby pump emergency branch pipe respectively, and an emergency flushing water pipe pressure detector and an emergency flushing water pipe valve are arranged on the emergency flushing water pipe.

Furthermore, a high-speed pump sealing flushing pressure detector is arranged on an outlet pipe of the high-speed pump sealing cavity, and a standby pump sealing flushing pressure detector is arranged on an outlet pipe of the standby pump sealing cavity.

Furthermore, a high-speed pump emergency branch pipe valve is arranged on the high-speed pump emergency branch pipe, and a standby pump emergency branch pipe valve is arranged on the standby pump emergency branch pipe.

Furthermore, emergent wash pipe, the emergent branch pipe of high-speed pump and the emergent branch pipe of reserve pump are stainless steel.

The utility model has the advantages that:

the utility model discloses can provide the high-pressure sparge water for high-speed pump and stand-by pump when current sealed washing unit loses sealed washing power, in the period that sealed washing emergency pipe launched, can arrange the staff to overhaul sealed washing water pump and sealed washing stand-by pump so that resume normal as early as possible, and in this period, the heat of the sealed face of high-speed pump can be taken away in the operation of sealed washing emergency pipe, the high-speed pump has also been prevented and has been taken place to reveal because of losing effective sealing, thereby the high-speed pump and perhaps the normal high-speed operation of stand-by pump have been guaranteed, the safety and stability operation of production has been ensured, the major economic loss who causes because of production interruption has been avoided.

Drawings

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

The labels in the figure are: 1. the system comprises a sealed flushing water pump, 2, a sealed flushing standby pump, 3, a filter, 4, a sealed flushing pressure detector, 5, a high-speed pump emergency branch pipe valve, 6, a high-speed pump emergency branch pipe, 7, a standby pump emergency branch pipe valve, 8, a standby pump emergency branch pipe, 9, an emergency flushing water pipe, 10, an emergency flushing water pipe pressure detector, 11, an emergency flushing water pipe valve, 12, a public engineering circulating water station, 13, a standby pump, 14, a standby pump outlet pressure detector, 15, a high-speed pump, 16, a high-speed pump outlet pressure detector, 17, a heat exchanger, 18, a sealed flushing water tank, 19 and a sealed flushing water tank water outlet.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

As shown in the figure, a sealing water flushing system for a high-speed pump comprises a sealing flushing water pump 1, a sealing flushing standby pump 2, a filter 3, a heat exchanger 17 and a sealing flushing water tank 18, wherein an outlet of the sealing flushing water tank 18 is connected with inlets of the sealing flushing water pump 1 and the sealing flushing standby pump 2 through pipelines, outlets of the sealing flushing water pump 1 and the sealing flushing standby pump 2 are connected to an inlet of the filter 3 through a pipeline, an outlet of the filter 3 is connected to a sealing cavity of a high-speed pump 15 and a sealing cavity of a standby pump 13 through pipelines, a sealing flushing pressure detector 4 is arranged on an outlet pipeline of the filter 3, the sealing flushing pressure detector 4 is used for detecting the water pressure of the sealing flushing system, the sealing flushing water pump 1 and the sealing flushing standby pump 2 belong to logic linkage, namely when the sealing flushing water pump 1 breaks down, the sealing flushing, the seal flushing standby pump 2 is automatically started, the seal cavities of the high-speed pump 15 and the standby pump 13 are both connected with the inlet of the heat exchanger 17 through pipelines, and the outlet of the heat exchanger 17 is connected with the seal flushing water tank 18 through a pipeline.

The sealing water flushing system further comprises an emergency flushing water pipe 9 connected with a public engineering circulating water station 12, the public engineering circulating water station 12 provides a water source with a pressure range of 480-1000Kpag for the emergency flushing water pipe 9, a water outlet of the emergency flushing water pipe 9 is respectively communicated with sealing cavities of a high-speed pump 15 and a standby pump 13 through a high-speed pump emergency branch pipe 6 and a standby pump emergency branch pipe 8, and an emergency flushing water pipe pressure detector 10 and an emergency flushing water pipe valve 11 are arranged on the emergency flushing water pipe 9.

Furthermore, a high-speed pump sealing flushing pressure detector 16 is arranged on a sealing cavity outlet pipe of the high-speed pump 15, a high-speed pump emergency branch pipe valve 5 is arranged on a sealing cavity outlet pipe of the standby pump 13, and a standby pump emergency branch pipe valve 7 is arranged on the standby pump emergency branch pipe 8.

In order to prevent the introduced water from causing the corrosion of the pipeline to generate the rust, the rust can enter the high-speed pump along with the water and finally damage the high-speed pump, and further, the emergency flushing water pipe 9, the high-speed pump emergency branch pipe 6 and the standby pump emergency branch pipe 8 are all made of stainless steel materials.

The utility model discloses a concrete use:

in the actual production, the pressure of the high-speed pump sealing flushing water can not be lower than 480 Kpag, the pressure range can be up to more than 1000Kpag, the utility model discloses a deoxygenated water with pressure higher than 480 Kpag and not more than 1000Kpag in the public engineering circulating water station completely meets the requirement of the sealing flushing water, when the sealing flushing water pump 1 and the sealing flushing standby pump 2 are out of order, the sealing flushing pressure detector 4 detects that the water pressure entering the high-speed pump or the standby pump is insufficient, at the moment, the emergency flushing water pipe valve 11 is opened, the emergency branch pipe valve corresponding to the pump in the running state in the high-speed pump and the standby pump is opened, the deoxygenated water in the public engineering circulating water station 12 is led to the sealing cavity inlets of the high-speed pump 15 and the standby pump 13 through the emergency flushing water pipe 9, the high-speed pump emergency branch pipe 6 and the standby pump emergency branch pipe 8, and the high-pressure water flow flushing is carried out on the mechanical sealing surface, the flushing water flow finally flows into the sealed flushing water tank 18, a sealed flushing water tank water outlet 19 arranged on the sealed flushing water tank 18 is opened, a high-pressure flushing water path from the public engineering circulating water station 12 to the high-speed pump 15 or the standby pump 13 to the sealed flushing water tank 18 is formed, heat on the sealing surface of the high-speed pump can be taken away through the high-pressure water flow, leakage of the high-speed pump due to the fact that effective sealing is lost is also prevented, normal high-speed running of the high-speed pump and the standby pump is guaranteed, safe and stable running of production is guaranteed during the period that workers recover normal running of the sealed flushing water pump 1 and the sealed flushing standby pump 2, and great economic loss caused by production interruption is avoided.

It should be noted that the above embodiments are only used for illustrating the present invention, but the present invention is not limited to the above embodiments, and any simple modification, equivalent change and modification made to the above embodiments by the technical spirit of the present invention all fall into the protection scope of the present invention.

Claims

1. A sealing water flushing system for a high-speed pump comprises a sealing flushing water pump (1), a sealing flushing standby pump (2), a filter (3), a heat exchanger (17) and a sealing flushing water tank (18), wherein an outlet of the sealing flushing water tank (18) is connected with inlets of the sealing flushing water pump (1) and the sealing flushing standby pump (2) through pipelines, outlets of the sealing flushing water pump (1) and the sealing flushing standby pump (2) are connected to an inlet of the filter (3) through pipelines, a sealing flushing pressure detector (4) is arranged on an outlet pipeline of the filter (3), an outlet pipeline of the filter (3) is connected to sealing cavities of a high-speed pump (15) and a standby pump (13), the sealing cavities of the high-speed pump (15) and the standby pump (13) are connected with an inlet of the heat exchanger (17) through pipelines, and an outlet of the heat exchanger (17) is connected to the sealing flushing water tank (18) through, the emergency washing water pipe is characterized by further comprising an emergency washing water pipe (9) connected with a public engineering circulating water station (12), wherein the public engineering circulating water station (12) provides a water source with the pressure range of 480-plus 1000Kpag for the emergency washing water pipe (9), a water outlet of the emergency washing water pipe (9) is respectively communicated with sealing cavities of a high-speed pump (15) and a standby pump (13) through a high-speed pump emergency branch pipe (6) and a standby pump emergency branch pipe (8), and an emergency washing water pipe pressure detector (10) and an emergency washing water pipe valve (11) are arranged on the emergency washing water pipe (9).

2. The seal water flushing system for the high-speed pump according to claim 1, characterized in that a high-speed pump seal flushing pressure detector (16) is arranged on an outlet pipe of the seal cavity of the high-speed pump (15), and a backup pump seal flushing pressure detector (14) is arranged on an outlet pipe of the seal cavity of the backup pump (13).

3. The seal water flushing system for the high-speed pump according to claim 1, characterized in that the high-speed pump emergency branch pipe (6) is provided with a high-speed pump emergency branch pipe valve (5), and the backup pump emergency branch pipe (8) is provided with a backup pump emergency branch pipe valve (7).

4. The seal water flushing system for the high-speed pump according to claim 1, characterized in that the emergency flushing water pipe (9), the emergency branch pipe (6) of the high-speed pump and the emergency branch pipe (8) of the backup pump are all made of stainless steel.