CN202302738U

CN202302738U - Fluid conveying optimization system

Info

Publication number: CN202302738U
Application number: CN2011203716091U
Authority: CN
Inventors: 吴迎新
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-09-28
Filing date: 2011-09-28
Publication date: 2012-07-04
Anticipated expiration: 2021-09-28

Abstract

The utility model relates to a fluid conveying optimization system, which comprises a pump station, a cooling tower, a pipeline and tail end equipment, wherein an inlet of the tail end equipment is connected with a cold water pump arranged in the pump station, the cold water pump is connected with a cold water pool, the cold water pool is connected with the cooling tower, an outlet of the tail end equipment is connected with a hot water pool arranged in the pump station, the hot water pool is connected with a hot water pump, the hot water pump is connected with the cooling tower, and a collection system for collecting operation work conditions of each component in the pump station, the operation conditions of the tail end equipment, the heat exchange conditions of the cooling tower and each parameter of the pipeline is arranged in the pump station. The fluid conveying optimization system has the beneficial effect that the problems of phenomena of local pressure and flow rate distribution unreasonability and energy waste such as too low temperature difference and the like are solved.

Description

A kind of FLUID TRANSPORTATION optimization system

Technical field

The utility model relates to a kind of FLUID TRANSPORTATION optimization system.

Background technique

In recent years, along with rapid economy development, the demand of electric power is increased sharply, using electricity wisely has become the serious problem of a pendulum in face of people.Annual commercial power accounts for about 60% of total electricity consumption, and fluid delivery system is an industrial important step, and wherein the power consumption of industrial circulating water accounts for about 21% of annual total electric weight, and blower fan power consumption accounts for about 9% of annual total electric weight.In this FLUID TRANSPORTATION technical field, the efficient gap of the water pump of China and advanced country, blower fan is also little, but running efficiency of system has a long way to go.According to statistics, the system effectiveness of developed country is about 75%, and China only about 45% exists a large amount of energy losses.

, there is multiple uncertain factor in the not enough pump of topic during mode, return water mode, last tower valve opening, sprinkler height, pond liquid level or the like proposal plan, causes safety coefficient raised without restriction, and the pump capacity rating is far longer than the actual aequum of system.The narrow limitation of technological means, modernized automatic control system, computer technology and systems incorporate constant pitch can means fully not used, and cause the monitoring of working condition of system to have certain difficulty, have a narrow range of temperature, and flow is big, and the excessive phenomenon of local resistance is not easy to come to light.On the management O&M, DCS etc. modernization detects control system not in overall application and the system, much all is only to manage with the experience of manual work, and the backwardness of management also causes the waste of a lot of energy.Therefore, the FLUID TRANSPORTATION economize on electricity is a current urgent engineering.

Summary of the invention

Have the big problem of energy dissipation in order to solve existing fluid delivery system, the utility model provides a kind of energy dissipation little FLUID TRANSPORTATION optimization system.

To achieve these goals, the utility model adopts following technological scheme:

A kind of FLUID TRANSPORTATION optimization system; Comprise pumping plant, cooling tower, pipeline, end-equipment; The import of said end-equipment is connected with the interior water supply pump of pumping plant, and said water supply pump is connected with water cooling pond, and said water cooling pond is connected with cooling tower; The outlet of said end-equipment is connected with the interior hot-tub of pumping plant; Said hot-tub is connected with hot water pump, and said hot water pump is connected with cooling tower, it is characterized in that: be provided with in the said pumping plant and gather each parts operating conditions, the runnability of end-equipment, the heat exchange situation of cooling tower, the acquisition system of each parameter of pipeline in the pumping plant.

The utility model in conjunction with the heat exchange effect of characteristic curve of pipeline, end-equipment runnability and cooling tower, can obtain water-aspirator pressure, flow, the temperature difference through the collection to system data in the pumping plant easily; Thereby judge the water system energy distribution, and according to the needed operating mode of system's actual motion, solve local compression, assignment of traffic is unreasonable; The temperature difference is crossed the phenomenon of low homenergic waste, rationally formulates the operating mode of compliance with system actual motion, makes high efficiency energy saving pump to measure; Replace original water pump; Water pump and system matches, in the operation of efficient district, system's actual operating efficiency increases more than 25%.

The sampling instrument of said acquisition system comprises high-precision pressure table, band pressure punch, infrared thermometry device, multifunctional electric energy detector, PDA analyzer, motor economic operation ANALYZER, digital display calliper.

Theing contents are as follows of said acquisition system collection:

The operating conditions of pumping plant comprises the series parallel connection of Model of pump, flow, lift, air horsepower, manufacturer, pump water sucking mouth height, pump discharge pressure meter reading, pump discharge valve opening, female pipe pressure of supply water, bottom valve, one-way valve, valve types, motor nameplate parameter, motor actual motion power, motor running temperature, pump.

The parameter of pipeline comprises waterpower trend, caliber, tubing, tubulose, pipe thickness, loss of head.

The runnability of end-equipment include mouth pressure, pressure allow excursion, inlet temperature, high water usage point, at most with water spot, the most special with water spot, maximum with differential water pressures point, temperature difference requirement, heat exchange amount, conductivity coefficient, return water temperature, pressure of return water, technological requirement.

The heat exchange situation of cooling tower comprises cooling capacity, the type of cooling, return water mode, last tower valve opening, sprinkler height, the pond liquid level of cooling tower.

The utility model is according to the data of above-mentioned collection; Obtain system's actual operating mode; Heat exchange effect in conjunction with characteristic curve of pipeline, end-equipment runnability and cooling tower; Obtain water-aspirator pressure, flow, the temperature difference; The power of high-voltage motor wherein; Can calculate formula N=

UIcos Φ through phase asynchronous electric power, calculate according to measured current and voltage.And according to the needed operating mode of system's actual motion, make high efficiency energy saving pump to measure and replace original high energy consumption water pump, said high efficiency energy saving pump is the designs of three runners; Are furnished with three cover impellers; Middle impeller is main running wheel, and all the other are subsequent use impeller, uses during with the raising the output of defence system or the underproduction; Solve local compression, assignment of traffic is unreasonable, the temperature difference is crossed the phenomenon of low homenergic waste.

Local compression, assignment of traffic are unreasonable, through the adjustment valve opening, are principle with the system resistance minimum, and system's actual flow records, and as the adjustment parameter, regulate according to system's actual operating mode.For the phenomenon of high low pressure mixed flow, can carry out the high low pressure subregion, reduce the invalid loss of partial pressure.

The temperature difference is crossed low phenomenon, and there is the supercooling on the production material in a lot of systems, and design temperature difference t should be generally 6 ℃ between 5 ℃-10 ℃.But a lot of systems, the various factors comprehensive function during owing to actual motion, the temperature difference has only 3-4 ℃, because not optimizing on the water system flow causes the supercooling of production material heat.Formula Q=mc Δ t (being energy=quality * specific heat capacity * temperature difference); Like quality is the water of 1000Kg; The temperature difference differs 1 ℃; Q=1000 * 4.2 * 103 * 1=4.2 * 10

joule; That is to say,, just can obtain corresponding energy-conservation purpose if can make the circulating water temperature difference increase 1 ℃.

The utility model is because Dong Xia system these characteristics of actual flow variation in pressure; Configuration three cover impellers; Impeller in the middle of choosing is the longest parameter of system's operation reality, and then system's actual flow and variation in pressure are between positive and negative 35%, according to the adjustment of impeller; System all in efficient district scope, does not need again more water-change pump.

The beneficial effect of the utility model: solve local compression, assignment of traffic is unreasonable, the temperature difference is crossed the phenomenon of low homenergic waste.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Embodiment

Come the utility model is further specified below in conjunction with specific embodiment, but the utility model is not confined to these embodiments.One skilled in the art would recognize that the utility model contained in claims scope all alternatives, improvement project and the equivalents that possibly comprise.

Referring to Fig. 1; A kind of FLUID TRANSPORTATION optimization system comprises pumping plant, cooling tower 1, pipeline, end-equipment 4, and the import of said end-equipment 4 is connected with the interior water supply pump 3 of pumping plant; Said water supply pump 3 is connected with water cooling pond 2; Said water cooling pond 2 is connected with cooling tower 1, and the outlet of said end-equipment 4 is connected with the interior hot-tub 5 of pumping plant, and said hot-tub 5 is connected with hot water pump 6; Said hot water pump 6 is connected with cooling tower 1, is provided with in the said pumping plant to gather each parts operating conditions, the runnability of end-equipment, the heat exchange situation of cooling tower, the acquisition system of each parameter of pipeline in the pumping plant.

The optimization step of present embodiment is following:

At first; Water system is carried out site inspection; Utilize high-precision pressure table, band to press punch, infrared thermometry device, multifunctional electric energy detector, PDA analyzer, motor economic operation ANALYZER, digital display calliper; Detect exit of pump and total pipe pressure, flow, pump house position, pond liquid level, valve opening, advance return water temperature, motor operate power or electric current etc., to obtain system's actual operating mode.

Secondly, according to measured data, ins conjunction with the heat exchange effect of characteristic curve of pipeline, end-equipment runnability and cooling tower, the analytical system energy distribution finds out and pays no attention to operating point, and local compression, assignment of traffic are unreasonable, and the temperature difference is crossed the phenomenon that low homenergic is wasted.For the system that has existed, the operating mode substantially constant, but summer in winter is different, all regulates through operating mode.According to analysis result, make water pump to measure to replace original water pump.

At last; Because Dong Xia system of system these characteristics of actual flow variation in pressure, configuration three cover impellers, the impeller in the middle of choosing are the longest parameter of system's operation reality; Then system's actual flow and variation in pressure are between positive and negative 35%; According to the adjustment of impeller, system all in efficient district scope, does not need again more water-change pump.

Claims

1. FLUID TRANSPORTATION optimization system; Comprise pumping plant, cooling tower, pipeline, end-equipment; The import of said end-equipment is connected with the interior water supply pump of pumping plant, and said water supply pump is connected with water cooling pond, and said water cooling pond is connected with cooling tower; The outlet of said end-equipment is connected with the interior hot-tub of pumping plant; Said hot-tub is connected with hot water pump, and said hot water pump is connected with cooling tower, it is characterized in that: be provided with in the said pumping plant and gather each parts operating conditions, the runnability of end-equipment, the heat exchange situation of cooling tower, the acquisition system of each parameter of pipeline in the pumping plant.