Abstract: Energy conservation is our beer, the beverage industry is an important strategy for sustainable development, China's energy-saving control is achieved by the end of the treatment to control the whole process of major change initiatives. CIP (cleaning in place) is an ideal beer and beverage production equipment cleaning methods, currently in the beer and beverage company has been in use is more extensive. This paper describes a new type of threaded screw tube heat exchanger in the CIP system is how to companies to reduce energy consumption, lower production costs.
Keywords: heat exchanger; CIP; energy

Author: Zhang Lu, male, Shandong, engineers, mainly engaged in the heat exchanger in the food and fermentation industry applications and CIP system design, research and development. Address: zhanglu821110@163.com


1 Introduction

Beer, drink is a nutritious, refreshing taste, is widely accepted that people drink, it contains protein, fat, vitamins, enzymes and substances. With the development of national economy and people's living standards, China's per capita beer, beverage demand is increasing. Related manufacturing enterprises in China have made significant progress, there are currently Qingdao, Yanjing, China Resources, Huiyuan, Jung, Wahaha and other large group of leading manufacturers. With China's accession to the WTO, beer, beverage market competition becomes more intense well-known large companies such as InBev Sedrin, Coca-Cola, Pepsi seize the Chinese market, and our beer, beverage companies are working out of the country towards international of direction. The brutal competition in the market is also growing. Therefore, enterprises in order to help position, energy saving, emission reduction is the only way for the future.

This paper describes a highly efficient steam - water heat exchanger tube and the threaded screw in the CIP cleaning process irreplaceable advantage. It can help companies reduce energy consumption CIP cleaning system, reduce production costs for enterprises to create more profit, improving the overall competitiveness.

2.CIP in beer, beverage production and process applications

2.1 The composition and the surface of dirt fouling the harm

Contact with the surface of the fluid, due to surface adsorption, temperature and chemical effects on the device surface fouling, as a hotbed of growth and reproduction of bacteria contamination, is the focus of CIP cleaning. The final composition of the device depends on the dirt surface chemical composition of materials, to beer, for example usually have two components:
① organic components: the high temperature and under the effect of surface adsorption, polymer protein, polyphenols, hop resins and other components of polymerization and condensation on the surface of a brewery, a common form of dirt. Since most of the organic polymer solution can be alkaline, so alkaline cleaning processes still account for a large proportion.
② inorganic components: mainly by ions and water plus calcium and magnesium ions as a result of.

2.2 Equipment fouling surface damage mainly in the following areas:

A significant reduction in the dirt wall of the heat transfer coefficient, thermal disinfection effect, increasing energy consumption. The generation of the dirt surface roughness increases, is not conducive to cleaning, sterilization and quality control; surface heat after scaling, if not cleaned, it will accelerate the formation of sediment, surface roughness will increase further; the surface roughness of the dirt, as beer, beverage spoilage bacteria, such as football, lactic acid bacteria to provide a place to live, make a serious scaling cleaning, disinfection fails, is not conducive to microbial management.
Therefore, it requires a lot of manpower, material resources, time, equipment, surface dirt on a thorough cleaning, sterilization, enacted in the CIP process, carefully consider the reasons for scaling devices and types of dirt, choose the appropriate acid or alkaline lotion, timely cleaning, to remove dirt purposes.
Therefore, beer, beverage production equipment in use, you must be thoroughly cleaned and disinfected.

2.3 CIP application process

Reign cleaning (cleaning in place) referred to as CIP, is an efficient and convenient method of cleaning equipment, which is characterized by cleaning without dismantling the equipment, piping and equipment, cleaning equipment directly, thereby reducing the labor intensity reduce equipment cleaning time and increase the quality of health products. It can be said to achieve in-situ cleaning product line is to ensure that quality health products and equipment necessary for the normal operation of the means. Currently, CIP cleaning system in China and medium-sized beer and beverage manufacturers have been very widely used. In the beer, beverage production line cleaning program in place is based on clean lines, including hot surfaces vary, and can be divided into two categories.
First class: For the surface with heat pasteurization and other equipment lines in office cleaning program. The cleaning process of this type of equipment must have a longer cycle stage pickling to remove surface proteins equipment and piping hot crust. So, for equipment with hot surfaces in situ cleaning procedure is:
① Pre-rinse with water for about 5 minutes;
② 75 ℃ with the alkali (usually NaOH solution) cycle for 15 minutes;
③ Flush with water for about 5 minutes;
④ 70 ℃ with acid solution (usually dilute nitric acid) cycle of 15 minutes;
⑤ with 90 ℃ hot water for about 15 minutes.

The second category: non-thermal surface for pipes, tanks and other processing equipment in situ cleaning
① Pre-rinse with water for about 5 minutes;
② 75 ℃ lye cycle with about 10 minutes;
③ with 90 ℃ hot water for about 10 minutes.

3 heat exchanger in the CIP application on

CIP (cleaning in place) is an ideal method of cleaning dairy equipment, currently in the beer and beverage manufacturers in the application is more extensive. Running them in the CIP, to frequent acid, alkali, detergent, washing water is heated.
   Heat exchanger as an energy conversion device that is widely being used in CIP cleaning process. Currently, the CIP system being widely used as a heating plate heat exchanger. As in the actual production process the higher frequency of cleaning, the traditional plate heat exchanger itself the existence of deficiencies exposed in the production process, such as: rubber ring seal frequently used replacement, low heat transfer coefficient, heat for a long time, long-term the use of scaling phenomena, such as higher maintenance costs later; it to the domestic beer, beverage manufacturers have brought huge economic losses.

Energy conservation is our beer, the beverage industry is an important strategy for sustainable development, energy-saving control is achieved by the end of the corporate governance changes to control the whole process of a major long-term health development initiatives and the only way. Combined with long experience engineers and technicians, found SECESPOL heat exchanger in the steam - water heat exchanger field characteristics and irreplaceable powerful advantage. This is just to meet the CIP online cleaning system process requirements, a traditional plate heat exchanger to replace those.