Cylinder type gas heating stove heat flow field improvement structure

Abstract

The invention relates to a device for heating and heating up natural gas during the process of exploitation and distribution of the natural gas. The invention relates to an improved structure for a heat flow field of a cylindrical gas heating furnace, wherein, a flow channel is respectively arranged inside four quadrants of a cross section in a large cylinder (3), and two respective flow channelson the upper side and the lower side are communicated with each other on one end of the large cylinder (3); an opening on the other end of the large cylinder (3) is respectively provided with an inlet and an outlet; the two upper flow channels are flow channels for conveying heating gas to be heated and the two lower flow channels are heating gas flow channels; a heating gas feeding flow channel (4) on the lower side is a pipe structure, and both the two upper flow channels for conveying the heating gas to be heated and a heating gas delivery flow channel (5) on the lower side are pipe bundlestructures which consist of a plurality of tubules; the large cylinder (3) is filled with intermediate heating agents; and vertical guide plates are arranged along the flow channels between the upperflow channels for conveying the heating gas to be heated and the lower heating gas flow channels. By adoption of the technical proposal, the heating efficiency can be improved by approximately 3 percent.

Description

(1) Technical field [0001] The invention relates to a heating device for transporting gas, in particular to a device for heating and raising the temperature of natural gas in the process of natural gas exploitation, transmission and distribution. (2) Background technology [0002] Energy is an important pillar of national economic development and the basic guarantee for human survival. Clean energy is the fundamental way for the harmonious development of man and nature. Natural gas is an important clean energy endowed by nature to human beings. Therefore, its utilization technology has been widely valued by human beings. In the process of natural gas exploitation and long-distance transportation, due to various reasons, it is necessary to heat the large flow of high-pressure natural gas to prevent freezing. During use, when used in large gas-fired power plants, the natural gas must be heated to the specified temperature to achieve good results In natural gas oil and gas fie...

AI Technical Summary

Problems solved by technology

[0007] a. Because the temperature of the medium close to the fire tube and the wall of the smoke tube bundle is high, an upward flow will be formed, while the temperature of the medium near the heated tube bundle is relatively low, and a downward flow will be formed, because there is no proper flow of the intermediate heat-carrying medium In addition, there is a temperature difference between the fire tube and the smoke tube bundle, and there is a temperature difference between the multiple returns of the heated tube bundle, all of which lead to the disorder of the flow field organization in the large cylinder, resulting in the heating of the large cylinder. Uneven; b. Due to the small temperature difference between the upper and lower sides of the flow field, the power of natural convection is also small, which makes it difficult to form an effective flow field, and the convective heat transfer between the heating surface and the heating surface in the large cylinder is very weak; c. In the whole In the flow field, there are still many flow dead angles, such as the bottom of the large cylinder, etc.

All these factors will destroy the effective heat transfer flow field in the large cylinder, reduce the effective utilization of the heating surface and the heating surface, thereby reducing the efficiency of the natural gas heating furnace and high energy consumption, which is not conducive to energy saving and environmental protection

d. In some occasions, such as when the difference between the heating temperature and the delivery temperature is small, because the flow field in the large cylinder is almost static, the heat transfer method is close to heat conduction. This is a method with poor heat transfer efficiency, and it cannot be achieved. The desired convective heat transfer method

Images