1, calorimeter A, calorimeter is not an energy saving tool. Its so-called energy-saving effect is sub-Ukrainian virtual. Heat meters in the heating reform, only to play a role in measuring user thermal energy consumption, to be precise, it is just a measurement tool. The use of heat meters to measure the heat users is based on the technical concept of "Europe." We have already described the difference between our country's heating environment and "Europe" in Article 2 of this paper. Based on this difference, the applicability of the heat meters in our country should be questioned. C, the author because the design needs to know the resistance of a standard heat meter coefficient, view several domestic heat meter manufacturers sample data, did not find the relevant data. Call to find these manufacturers, manufacturers that have not done related tests, can not be provided. HVAC design personnel know that in a large community planning, if all the household heat meter, the technical parameters can not be ignored. This shows that China's existing heat meter manufacturers know the HVAC related technical personnel obviously lacking. This development and production of products, can fully consider the heat meter in operation in the working conditions and to deal with it? If the answer is negative, then we should have another question on the heat meter. D, IC card heat meter. The use of RF cards and micro-power valves to make the heat meter with prepaid management is a good idea. However, there are still very detailed but complicated technical problems in this way. For example, the use of electric ball valve as a switch IC card calorimeter, the fixed summer throughout the pipe will precipitate and solidified in the valve ball on the ball, coupled with high oxygen content in the pipeline, the surface of the ball Generate oxide layer and attached to the valve ball mixed impurities curing. When the next heating season arrives, the valve can not normally open or close according to people's control objectives. Such a technical problem is not a one or two, it can be said that there is no technically perfect IC card calorimeter. E, the front has said that the heat meter after installation of property rights and maintenance issues. Both: the heat meter battery according to national standards is six years of service life, six years after the battery replacement who is responsible for and pay the cost. According to the provisions of the State Bureau of Technical Supervision, the heat meter needs to be tested once every six years after use. Who is the cost of this test? Who to unload it, test and then loaded? Detection of substandard, who funded the purchase of qualified products to replace? This article does not oppose household measurement, nor does it negate the heat meter. Just want to objectively explain the heat meter in China's promotion need to be cautious. The relevant government departments should install and use the heat meter after a series of problems, both in advance have a clear provision (such as the front said battery replacement and future detection problems). Our manufacturing enterprises need to step up technological progress so that they can adapt to the needs of China's heating reform. Our technical R & D personnel need to master the knowledge of relevant disciplines, our sales staff need to objectively and truthfully introduce their products. Thermostatic valve: On the temperature control valve, this article cites only one example of the project. Famous Beijing Huilongguan residential district of the first phase of the project. With a total construction area of ​​700,000 square meters and 6700 households, the heating mode is home wall-mounted gas stoves with 42,700 temperature control valves installed by Danfoss and Owen Top. After the first heating season started, almost all households removed the valve head (temperature control part) and even the valve head of the developer's property management office was removed. Obviously, if there is no problem with using the household, who will remove it? Who wants to burn the gas? 3, double-tube horizontal. I live in Beijing Xisanqi a district. From my stay until now, 5 years time. Radiators in the kitchen and living room are not hot enough. This pipe connection, completely dependent on a room closed after reaching the temperature, the circulating water to reach the end of the pressure enough, which requires constant adjustment of the room that the number of households in the valve. Listening may be a joke, but readers can go to Sina owners forum to see how much the same encounter with the author. At this point, we are feeling apart, whether it should be on our building energy efficiency and heating reform in addition to do some business in addition to the deep thinking of it? Second, explain the fallacy Thermal reform 1, household metering and building energy conservation. Now mentioning building energy efficiency, talk about heat reform, talk about the heat reform, talk about fees. It seems that an effective means of collecting money is building energy efficiency. I believe that: the way money can be barely equal to the heat change, but by no means saving. It is regrettable that China's building energy-saving turned out to be how to start collecting money first. Heilongjiang Province, a city, the residential building heating pipe with the demolition of demolition, corridor installed for the return pipe risers, risers connected horizontally from home, the installation of the lock valve at the entrance. Piping in the interior wall after drilling, connecting the radiator in each room of the tenants. This approach has seriously affected the normal household life of households, the user has naturally been psychologically objectionable and boycott. But the user is also very helpless. Their subsequent practice is to notify users to clean up the past arrears, and pay the full amount of "renovation costs." Users pay the debt and pay the "reform fee" to the households according to the level of households installed and connected to the indoor radiator of each group, users do not pay the above costs will not be able to heat. The district heating department staff proudly said at the table: in the past we are looking for them (referring to users), and now they come to ask us! See these, it is difficult to describe what is the taste of our hearts. Tianjin, Shenyang have also had a similar approach. This is the heating reform, which is building energy-saving transformation? In our vast heating area, how many heating units to energy-saving transformation as money! Such transformation, how can get the positive response from the public! The heat into commodities, consumed by the user on demand, this method is understandable, but also the direction of future thermal energy consumption. The key is that we can not recognize the way to change the money as a building energy-saving transformation. We can not intensify the antagonistic sentiment. We must also build a harmonious society to build a conservation-oriented society. 2, building table creative. Saving money is another form of energy saving: According to the "experts" proposal, the Beijing area pilot installation of building blocks table, each floor within the same building according to flow and their own area of ​​?? share of the cost. This reminds us of an electricity meter in each large private garden of that year, and we took turns in collecting electricity bills, the number of wattages of electric bulbs and bulbs in each house. Here not to say the measurement results of the building are accurate, and whether it has adapted to the quality of our pipe network. Let me say that such a billing method than we can save energy? Still consume? Live with or not, with or not not have to share it? Any one of them, the festival is not how energy is reflected? Or money-making means, nice to say: hot change. But what is the relationship between building energy efficiency? Winning and losing in the thermal industry. Asked all over the heat of the company, no one profited. There is even hardship to have no money to buy coal. True loss thanks to no one knows, no one knows more. Let's take an example to see it. Gansu Province, a county thermal station, two large-scale central heating boiler room, direct supply to more than 300 million square meters of building heating. 6 years ago by the county finance 500000 investment start. Today you walk into this underdeveloped county seat, the tallest building is the heating station charging hall and office locations. County fiscal annual income of about 60 million, nearly half are turned over by the heat station. Yinchuan City heating reform earlier, in 2002 the privatization of the heat. At present, there are 22 heating operation enterprises in the whole city, and under the precondition of guaranteeing the heat supply, none of them shout losses. Various hot bosses manage science, actively improve technology and try energy-saving methods. Contradiction with the supply and demand of households than other cities less. People's family, not a good breakdown. In short, the heat industry has no loss of truth, heating reform and building energy efficiency, the thermal industry has little effect on the economic benefits. After the implementation of energy-saving buildings, heat existing equipment can expand the heating area, long-term consideration of economic benefits will increase. The main issue is how to view the heat of the building energy efficiency and social responsibility to bring their own social responsibility. Our government departments should formulate what kind of policies to support the heat industry to actively invest in building energy efficiency reform, so that the source of reform enthusiasm. 4, heat transfer between households - the owner, police and thieves. At first glance, these terms are simply irrelevant. But in our heating reform, these nouns are combined in another story. The current government documents, industry publications, professional websites, "experts" articles, all talked about heat transfer between households. This is indeed the difference between heat consumption and the consumption of water, electricity and gas. Heat transfer between households is: If the third floor of the tenants do not heat, as long as the second and fourth floor of the tenants heating, heat conduction through the building structure can also make the middle of the indoor households to maintain a certain temperature. "Therefore, the heat company is still actually providing heat for this household." Therefore, referring to the experience of other countries, our heat metering fees are also divided into basic fees (about 40% of the total cost of the stations) and metering fees (about 60% ). The basic fee regardless of whether the user heating, heat companies have to levy, it seems justified. Let us think about it again. The middle user uses the heat of upper and lower level households when he / she is not heating. That is to say, the two upper and lower level households have already bought the bill for the heat consumption of the middle level households. We assume that the upper and lower floors of the tenants are the owners, middle-tier households are thieves, the heat company is the police, 40% of the basic fee is stolen goods. Obviously, by the way we charge heating bills now: booty goes to the police, not to the owner. This charging logic is obviously unreasonable. According to people who frequently quoted "European experience", Europe's heat metering charges have been nearly 70 years old. Is this logic of "bootlegging the police" invented by the so-called highly civilized Europeans over the 70 years of experience in hot metering? Or what those of us who have been to "Europe" overlooked when examining "Europe," or whether you know the "Europe" approach rather than the introduction. The fact is that in Europe "the measurement fee is really divided into basic fees and metering charges in two parts. The proportions are also consistent with those introduced to Europe. However, what is overlooked or inconvenient for those who visit "Europe" is that 40% of the basic fee has to be returned to the users who have lost their heat. Anti-return method and calculation basis is a more complex calculation process, not described in detail here. Interested friends can consult Pegasus Energy Services Inc.'s Beijing office. Here we need to emphasize a key concept in building energy efficiency: building energy efficiency, not at the expense of loss of comfort. Any building, in the climate of the same temperature, in order to maintain a certain temperature, there must be a rated thermal energy consumption. Below this reasonable energy consumption and maintaining a certain temperature, it is obviously impossible. In other words, in the above example, if a third-floor tenant can maintain a certain temperature indoors without heating himself, he must rely on the thermal energy of the two upper and lower users. Heat transfer between households is a heat balance, the greater the temperature difference, the greater the amount of heat exchange. In practice, if it is possible to try to keep the user a reasonable lower temperature than the heating user (which can be achieved at a low cost) by the technical means if the user is not paid the basic fee after heating, That is to say, it reduces the unreasonableness caused by the heat transfer between households and also provides a user who pays 40% of the basic fee a piece of heat energy close to the fee it pays. At the same time, heating units will not suffer losses. In short, heating metering, we must consider the issue of compensation for users who lose heat. Do not engage in "stolen goods to the police" thing
Suck Back Slot Die Coating Head
Suck Back Slot Die Coating Head,Continuous Slot Wedge Gun,Industrial Hot Melt Glue Gun,High Temperature Hot Melt Gun
Wahrheit Automation & Trading Co., Ltd. , https://www.wahrheitcn.com