CN109931501B - Sectional type heating gas conveying system - Google Patents
Sectional type heating gas conveying system Download PDFInfo
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- CN109931501B CN109931501B CN201711362577.7A CN201711362577A CN109931501B CN 109931501 B CN109931501 B CN 109931501B CN 201711362577 A CN201711362577 A CN 201711362577A CN 109931501 B CN109931501 B CN 109931501B
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Abstract
Hair brushThe invention relates to a sectional type heating gas conveying system, which comprises a plurality of gas conveying pipelines, wherein each gas conveying pipeline comprises a primary preheating pipeline, an enhanced heating pipeline and a heating wire heating pipeline which are sequentially communicated in a closed mode, a preheating module is arranged on each primary preheating pipeline, and the temperature of gas heated by the preheating modules is kept at T1A plurality of pressure regulating valves are arranged on the enhanced heating pipeline, a heating sleeve is sleeved on each pressure regulating valve, and the temperature of the gas is kept at T after the gas is heated by the heating sleeve2A heating wire is wound on the heating wire heating pipeline, and the temperature of the gas is kept at T after the gas is heated by the heating wire3℃，T1Less than T2，T2Greater than T3，T3Greater than T1And the gas is heated and conveyed through the preheating module, the regulating valve and the heating wire in sequence. The invention adopts the mode of arranging the heating sources on the gas conveying pipeline in sections, and has the characteristics of good heating effect and smooth gas conveying.
Description
Technical Field
The invention relates to a gas conveying system, in particular to a sectional type heating gas conveying system, and belongs to the field of gas source supply.
Background
At present, a single heating mode is often adopted for a special gas supply system, heating is realized only through a heating wire from the source of the special gas equipment to a distribution box and then to a machine station in a supply chain, and the temperature reached by heating is consistent and is usually set to be 35 ℃. Such a heating mode, while helpful in the supply of the particular gas, is not an optimal mode and requires heating differently due to the components installed throughout the supply system. Sometimes resulting in insufficient heating in some areas, which affects the pressure and flow of the supplied gas. In addition, in the case of low temperature in winter, the problem of insufficient heating is more obvious, and the gas passing through the heating area is changed into a mixture of liquid phase and gas phase, which has a serious influence on the whole conveying system.
Disclosure of Invention
The invention discloses a novel scheme for a sectional type heating gas conveying system, which solves the conveying problem caused by the fact that the existing scheme cannot meet the difference requirement of heating by adopting a mode of arranging heating sources on a gas conveying pipeline in a sectional mode.
The sectional type heating gas conveying system comprises a plurality of gas conveying pipelines, wherein each gas conveying pipeline comprises a primary preheating pipeline, an enhanced heating pipeline and a heating wire which are sequentially communicated in a sealing mannerThe primary preheating pipeline is provided with a preheating module, and the temperature of the gas is kept at T after the gas is heated by the preheating module1A plurality of pressure regulating valves are arranged on the enhanced heating pipeline, a heating sleeve is sleeved on each pressure regulating valve, and the temperature of the gas is kept at T after the gas is heated by the heating sleeve2A heating wire is wound on the heating wire heating pipeline, and the temperature of the gas is kept at T after the gas is heated by the heating wire3℃，T1Less than T2，T2Greater than T3，T3Greater than T1And the gas is heated and conveyed through the preheating module, the regulating valve and the heating wire in sequence.
Further, the sectional type heating gas conveying system of this scheme includes two gas conveying pipeline, and above-mentioned two gas conveying pipeline's end and the main pipeline intercommunication of gas conveying are equipped with gas filter on the main pipeline of gas conveying, and heating gas exports through gas filter.
Further, the module of preheating of this scheme includes the module casing, is equipped with the heliciform pipeline in the module casing, and the heliciform pipeline inboard is equipped with electric heating circuit, and electric heating circuit heating flow passes through the gas of heliciform pipeline.
Furthermore, a pressure transmitter and a pneumatic control valve are sequentially arranged on the primary preheating pipeline at the upstream of the preheating module along the gas conveying direction.
Further, the heating jacket inlayer of this scheme is equipped with the heater strip of crooked extension, and the one end of heating jacket is equipped with a plurality of buttons, and the other end of heating jacket is equipped with a plurality of button holes, and the button is close-fitting with button hole buckle, and the heating jacket is tightly overlapped on the air-vent valve through above-mentioned close-fitting of buckling.
Furthermore, the reinforcing heating pipeline of the scheme is provided with a pressure regulating valve A and a pressure regulating valve B along the gas conveying direction, a pressure gauge is arranged on the reinforcing heating pipeline between the pressure regulating valve A and the pressure regulating valve B, and the pressure regulating valve B is also provided with a pressure transmitter.
The sectional type heating gas conveying system adopts a mode of arranging the heating sources on the gas conveying pipeline in a sectional manner, and has the characteristics of good heating effect and smooth gas conveying.
Drawings
FIG. 1 is a schematic diagram of a segmented heated gas delivery system of the present invention.
FIG. 2 is a schematic diagram of a preheat module.
Fig. 3 is a schematic diagram of the internal structure of the preheating module.
Figure 4 is a schematic view of the heating jacket deployment.
Fig. 5 is a schematic view of a curved extended heating wire inside the heating jacket deployed in fig. 4.
Figure 6 is a schematic representation of the heating jacket after fastening.
Figure 7 is a schematic top view of the fastened heating jacket of figure 6.
Wherein 100 is a preliminary preheating pipeline, 110 is a preheating module, 111 is a spiral pipeline, 200 is an enhanced heating pipeline, 210 is a heating jacket, 211 is a heating wire, 212 is a button, 300 is a heating wire heating pipeline, and 400 is a gas conveying main pipeline.
Detailed Description
As shown in FIG. 1, a schematic diagram of a segmented heated gas delivery system of the present invention. The sectional type heating gas conveying system comprises a plurality of gas conveying pipelines, the gas conveying pipelines comprise a primary preheating pipeline, a reinforcing heating pipeline and a heating wire heating pipeline which are sequentially communicated in a closed mode, a preheating module is arranged on the primary preheating pipeline, and the temperature of gas is kept at T after the gas is heated by the preheating module1A plurality of pressure regulating valves are arranged on the enhanced heating pipeline, a heating sleeve is sleeved on each pressure regulating valve, and the temperature of the gas is kept at T after the gas is heated by the heating sleeve2A heating wire is wound on the heating wire heating pipeline, and the temperature of the gas is kept at T after the gas is heated by the heating wire3℃，T1Less than T2，T2Greater than T3，T3Greater than T1And the gas is heated and conveyed through the preheating module, the regulating valve and the heating wire in sequence. In order to ensure the gas conveying efficiency, the scheme can adopt a scheme of simultaneously conveying a plurality of pipelines, as shown in fig. 1, namely, a sectional type heating gas conveying system is preferably selected to comprise two gas conveying pipelines, the tail ends of the two gas conveying pipelines are communicated with a gas conveying main pipeline, a gas filter is arranged on the gas conveying main pipeline, and the heating gas is output through the gas filter. The scheme adopts the way of sectionally arranging the gas conveying pipelineThe heating source is arranged, so that the heating power is improved at the position needing to be reinforced to heat, the gas temperature is improved, and the gas conveying problem caused by low temperature is avoided.
As shown in fig. 2 and 3, the preheating module of the present scheme includes a module housing, a spiral pipeline is arranged in the module housing, an electric heating circuit is arranged on the inner side of the spiral pipeline, and the electric heating circuit heats gas flowing through the spiral pipeline. In order to realize the conveying control, a pressure transmitter and a pneumatic control valve are sequentially arranged on the primary preheating pipeline at the upstream of the preheating module along the gas conveying direction.
As shown in fig. 4 to 7, the heating jacket inner layer of the present scheme is provided with a heating wire extending in a bending manner, one end of the heating jacket is provided with a plurality of buttons, the other end of the heating jacket is provided with a plurality of button holes, the buttons are tightly buckled with the button holes, and the heating jacket is tightly buckled on the pressure regulating valve through the above-mentioned tight buckling fit. In order to improve the effect of pipeline pressure regulation, the reinforcing heating pipeline of this scheme is last to be equipped with air-vent valve A, air-vent valve B along the gas conveying direction, is equipped with the manometer on the reinforcing heating pipeline between air-vent valve A and air-vent valve B, still is equipped with pressure transmitter on the air-vent valve B.
The scheme discloses a sectional heating system for supplying special gas, and sectional research is carried out on the whole special gas heating system. The method comprises the steps of uniformly heating gas from a gas source, preheating the gas flowing through the gas source to 30 ℃ and rated power of 2400W no matter the temperature of the gas, and then entering a subsequent equipment distribution box-machine table, so that the temperature of the gas source is not low. Secondly, after the heating by the (preheating) module, the important pressure regulating valve flowing through the middle is heated independently. The original heating mode is single, the heating power of the pressure regulating valve is also 30W per meter, but actually the pressure regulating valve is the most part needing heating and heat compensation, so the scheme independently carries out independent heating design on the pressure regulating valve, designs a heating jacket (heating sleeve) with the same shape as the pressure regulating valve, and directly and independently sleeves the pressure regulating valve, meanwhile, the heating power is greatly improved to the current 600W from the previous 30W, the heating requirement of the pressure regulating valve is fully met, and meanwhile, the heating temperature is set to be 37 degrees and is slightly higher than the previous temperature. The disc surface and the pipeline after the pressure regulating valve are heated, the scheme still uses the original heating wire heating mode, the temperature is set at 35 ℃, and the power is 30W per meter. Thus, the heating system of the whole special gas supply has the sectional heating temperatures of 30 degrees, 37 degrees and 35 degrees respectively, and the heating powers of 2400W, 600W and 30W/m respectively. The segmented heating mode effectively avoids the heating 'blind spot' on the whole heating system, solves the difficult point on gas delivery, ensures that the whole gas supply system is very smooth and effective, and ensures the flow fully. Gas firstly carries out primary heating through the heating block (preheating module) through the pipeline, carries out air-vent valve local heating through the air-vent valve again, protects the air-vent valve, increases air-vent valve life, and the heating is again by the whole heater wire of quotation at last to guarantee gaseous temperature and velocity of flow. Meanwhile, the heating wire of the scheme can be divided into a left disc surface and a right disc surface, one single disc surface is heated and damaged, and the other disc surface can still work without being influenced. The heating small jacket (heating sleeve) heats the main valve member, and the main valve member is locally heated, so that gas can be sufficiently heated when the gas passes through the valve members, the condition that the part of the valve member drips and freezes due to uneven heating temperature can be avoided, the valve is better protected, and the service life of the valve is prolonged. This scheme adopts the heating block preliminary heating gas, and the heating block heating is passed through earlier before gaseous entering main pipeline, makes gas have the uniform temperature, can make the heating at the back more even like this, also can play the effect of preliminary protection pipeline and valve member on the quotation at the back. This scheme adopts a plurality of heating modes of many table control, utilizes a plurality of temperature control tables to control, will heat the module and carry out the segmentation to better heating gas is that gas reentries production facility after obtaining the intensive heating.
The heating mode of the existing scheme utilizes a heating wire to heat a pipeline and a valve piece in a winding mode, and the pipeline and the valve piece are wrapped by heat-preservation cotton to be heated in a heat preservation mode. This scheme keeps warm through the heater wire heat preservation cotton on prior art basis and heats outside, has increased HEATING BLOCK (HEATING module) and carries out the segmentation HEATING for the little jacket of air-vent valve customization HEATING to make gas flow more stable, prevent the phenomenon of freezing of dripping that the velocity of flow leads to at the excessive speed, thereby increase the service life of equipment. The scheme changes the prior heating mode, realizes heating segmentation, sets different heating temperatures, designs different heating powers and realizes convenient and smooth supply of special gas. Based on the characteristics, compared with the existing scheme, the sectional type heating gas conveying system has outstanding substantive characteristics and remarkable progress.
The present solution of a segmented heated gas delivery system is not limited to what is disclosed in the specific embodiments, the solutions presented in the examples can be extended based on the understanding of the skilled person, and simple alternatives made by the skilled person in the art in light of the present solution in combination with common general knowledge also fall within the scope of the present solution.
Claims (6)
1. The sectional type heating gas conveying system is characterized by comprising a plurality of gas conveying pipelines, wherein each gas conveying pipeline comprises a primary preheating pipeline, a reinforcing heating pipeline and a heating wire heating pipeline which are sequentially communicated in a closed mode, a preheating module is arranged on each primary preheating pipeline, and gas passes through the preheating module to be heated and then the temperature of the gas is kept at T1The temperature-control gas heating system comprises a temperature-control gas heating pipeline, wherein a plurality of pressure regulating valves are arranged on the temperature-control gas heating pipeline, a heating sleeve is sleeved on each pressure regulating valve, and the temperature of the gas heated by the heating sleeve is kept at T2The temperature of the gas is kept at T after the gas is heated by the heating wire3℃，T1Less than T2，T2Greater than T3，T3Greater than T1And the gas is heated and conveyed through the preheating module, the regulating valve and the heating wire in sequence.
2. The segmented heated gas delivery system of claim 1, comprising two gas delivery lines, the ends of the two gas delivery lines being in communication with a gas delivery manifold, the gas delivery manifold having a gas filter disposed thereon, the heated gas being output through the gas filter.
3. The segmented heated gas delivery system of claim 1, wherein the pre-heat module includes a module housing having a helical tube disposed therein, the helical tube having an electrical heating circuit disposed inside the helical tube, the electrical heating circuit heating the gas flowing through the helical tube.
4. The segmented heated gas delivery system according to claim 3, wherein the primary preheating conduit upstream of the preheating module is provided with a pressure transmitter and a pneumatic control valve in sequence along the gas delivery direction.
5. The segmented heated gas delivery system of claim 1, wherein the inner layer of the heating jacket is provided with a heater wire extending in a curved shape, one end of the heating jacket is provided with a plurality of buttons, the other end of the heating jacket is provided with a plurality of button holes, the buttons are tightly fitted with the button holes, and the heating jacket is tightly fitted over the pressure regulating valve through the tight fitting.
6. The segmented heated gas delivery system of claim 1, wherein the enhanced heating conduit is provided with a pressure regulating valve A and a pressure regulating valve B along the gas delivery direction, a pressure gauge is provided on the enhanced heating conduit between the pressure regulating valve A and the pressure regulating valve B, and a pressure transmitter is further provided on the pressure regulating valve B.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711362577.7A CN109931501B (en) | 2017-12-18 | 2017-12-18 | Sectional type heating gas conveying system |
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| CN201711362577.7A CN109931501B (en) | 2017-12-18 | 2017-12-18 | Sectional type heating gas conveying system |
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| CN109931501A CN109931501A (en) | 2019-06-25 |
| CN109931501B true CN109931501B (en) | 2021-04-06 |
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| CN117366475A (en) * | 2023-11-13 | 2024-01-09 | 上海韩科建设工程有限公司 | Novel method for controlling temperature change of extra-gas high-low pressure regulating valve |
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| FR2781868B1 (en) * | 1998-07-29 | 2000-09-15 | Air Liquide | PLANT AND METHOD FOR PROVIDING HELIUM WITH MULTIPLE PRODUCTION LINES |
| CN203525575U (en) * | 2013-09-30 | 2014-04-09 | 国家电网公司 | High-pressure mixed gas inflating device |
| CN103486439A (en) * | 2013-10-11 | 2014-01-01 | 国家电网公司 | SF6 gas bottle heating jacket |
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| US4192655A (en) * | 1977-07-18 | 1980-03-11 | Caloric Gesellschaft Fur Apparatebau M.B.H. | Process and apparatus for the conveyance of real gases |
| CN203708518U (en) * | 2013-12-12 | 2014-07-09 | 冠礼控制科技（上海）有限公司 | Segmented-control heating blanket for gas supply system |
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