Cooling regulation method

Abstract

The invention relates to a cooling regulation method. The method comprises the following steps: 1) circulating water enters a circulating water channel through a circulating water connector under a small working condition; (2) circulating water can take away heat generated when the inner wall of the pipeline makes contact with the fuel gas in the circulating process of the circulating water channel; (3) under the large working condition, spraying water enters the water spraying ring through a spraying water connector by means of a spraying water control valve of the water spraying ring; and (4) spraying water is atomized by a spraying atomizing head on the upper side of the spraying water when entering the spraying ring, and then is fully mixed with the high-temperature fuel gas for cooling. According to the cooling adjustment method, different cooling modes are adopted to adapt to cooling treatment of the gas pipeline, the follow-up pipeline does not have the water accumulation condition, meanwhile, water resources are saved, atomized spraying water makes contact with high-temperature gas, the contact area is large, the cooling effect is good, the atomized spraying water is collected into the water collecting pipe in the mode opposite to the mode of the water segregator through the water collecting pipe arranged above, and the cooling effect is good. The inner wall is taken away in the circulation process to be in contact with high-temperature fuel gas to absorb heat, and it is guaranteed that the temperature is within the design range.

Description

Technical Field

[0001] This invention relates to the field of pipeline cooling technology, specifically a cooling and temperature regulation method. Background Technology

[0002] When conducting gas turbine tests on a ground test bench, high-temperature and high-pressure exhaust gases are generated. The emission of these exhaust gases requires cooling, depressurization, and noise reduction treatment.

[0003] Currently, high-temperature and high-pressure gas after testing is generally cooled by direct water spraying. However, the spray water system typically operates under its maximum designed operating conditions. Under lower operating conditions, the gas temperature is generally lower, but the water spray volume does not decrease, resulting in a large amount of water accumulation in the subsequent pipelines. The spray water pipes are drilled directly with the exhaust pipes, resulting in weak atomization capabilities. The spray cooling water comes into direct contact with the high-temperature gas, and the small contact area between the high-temperature gas and the spray water leads to low cooling efficiency, requiring more spray water and further exacerbating the water accumulation in the downstream pipelines.

[0004] This invention is a cooling and temperature regulation method for high-temperature and high-pressure gas using a water spray cooling device based on the exhaust system of a gas turbine test apparatus. The total amount of spray water required is calculated according to the actual working conditions, and the spray volume of each spray ring is precisely adjusted to make the atomization evaporation rate of the spray water reach more than 90%, and there is basically no water accumulation in the subsequent pipeline. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a cooling and temperature regulation method that has the advantages of good cooling effect and less water accumulation. It solves the problem that the small contact area between high-temperature gas and spray water leads to low cooling efficiency, which in turn requires more spray water and further aggravates water accumulation in downstream pipes.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a cooling and temperature regulation method, comprising the following steps:

[0007] 1) Under low operating conditions, circulating water enters the circulating water channel through the circulating water interface;

[0008] 2) During the circulation of the circulating water in the circulating water channel, it will carry away the heat from the contact between the inner wall of the pipe and the gas.

[0009] 3) Under heavy operating conditions, the spray water enters the spray ring through the spray water control valve and the spray water interface;

[0010] 4) When the spray water enters the spray ring, it is atomized by the spray atomizing head on the upper side and then fully mixed with the high-temperature gas to cool it down.

[0011] Furthermore, the main body of the gas pipeline includes an outer cylinder, an inner cylinder, a rear flange, and a front flange. The two ends of the outer cylinder and the inner cylinder are respectively connected to the rear flange and the front flange, and a circulating water channel is formed between the inner cylinder and the outer cylinder. A water-dividing rib is fixed in the circulating water channel.

[0012] Furthermore, the outer cylinder is connected from left to right to a linearly distributed water collection pipe at the front end of the outer cylinder circulation, a water collection pipe in the middle of the outer cylinder circulation, and a water collection pipe at the rear end of the outer cylinder circulation. The other end of each of the three water collection pipes is fixed with a circulating water interface.

[0013] Furthermore, one side of the front flange is connected to a front orifice flange spray water interface, and a flange spray water control valve is sleeved inside the front orifice flange spray water interface. A spray ring is provided inside the inner cylinder, and at least two spray atomizing heads are connected to the outside of the spray ring.

[0014] Furthermore, one side of the outer cylinder is connected to multiple equally spaced external spray water interfaces, and a spray water control valve is sleeved on the outside of the external spray water interface.

[0015] Furthermore, each set of water spray rings is equipped with a valve that can be precisely adjusted and controlled, allowing for precise individual control of the flow rate of each set of water spray rings.

[0016] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0017] This cooling and temperature regulation method adapts to different cooling methods for different operating conditions, ensuring minimal water accumulation in the subsequent pipelines and conserving water resources. The atomized spray water comes into contact with the high-temperature gas, resulting in a large contact area and excellent cooling effect. The water is collected in the upper water collection pipe in the opposite direction of the water distributor. During circulation, the water carries away the heat absorbed by the inner wall from the high-temperature gas, ensuring the temperature remains within the design range. The water distribution ribs control the water flow corresponding to each channel, reducing dead zones between the inner and outer cylinder components. The total amount of spray water required is calculated based on actual operating conditions. Each spray ring is equipped with a precisely adjustable valve, allowing for precise individual control of the flow rate of each spray ring. Under different test conditions, the spray volume is adjustable, ensuring that the atomization evaporation rate of the spray water reaches over 90% of the total spray volume. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the circulating water flow structure of the present invention. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figure 1 The cooling and temperature regulation method in this embodiment includes the following steps:

[0022] 1) Under low operating conditions, circulating water enters the circulating water channel through the circulating water interface;

[0023] 2) During the circulation of the circulating water in the circulating water channel, it will carry away the heat from the contact between the inner wall of the pipe and the gas.

[0024] 3) Under heavy operating conditions, the spray water enters the spray ring through the spray water control valve and the spray water interface;

[0025] 4) When the spray water enters the spray ring, it is atomized by the spray atomizing head on the upper side and then fully mixed with the high-temperature gas to cool it down.

[0026] The main body of the gas pipeline includes an outer cylinder, an inner cylinder, a rear flange, and a front flange. The two ends of the outer cylinder and the inner cylinder are connected to the rear flange and the front flange, respectively, and a circulating water channel is formed between the inner cylinder and the outer cylinder. Water distribution ribs are fixed in the circulating water channel.

[0027] The outer cylinder is connected from left to right to the front water collection pipe, the middle water collection pipe, and the rear water collection pipe of the outer cylinder circulation, which are arranged in a linear pattern. The other end of the front water collection pipe, the middle water collection pipe, and the rear water collection pipe of the outer cylinder circulation are all fixed with a circulating water interface.

[0028] During the operation of the circulating water system, the circulating water enters the outer cylinder through the circulating water interface, the front, middle and rear water distribution and collection pipes, and then enters the circulating water channel between the inner cylinder assembly and the outer cylinder assembly. The outer cylinder circulating water distribution and collection pipes have water passages, and the circulating water can pass through the water distributor.

[0029] One side of the front flange is connected to the front orifice flange spray water interface. The front orifice flange spray water interface is fitted with a flange spray water control valve. A spray ring is installed inside the inner cylinder. At least two spray atomizing heads are connected to the outside of the spray ring.

[0030] It can be seen that there are water-dividing ribs between the inner cylinder assembly and the outer cylinder assembly to control the water flow corresponding to each channel, reduce the dead zone between the inner cylinder assembly and the outer cylinder assembly. The spray ring and spray atomizing head allow the spray water to enter the spray ring through the spray water control valve and spray water interface. After being atomized by the spray atomizing head on the spray ring, it is fully mixed with the high-temperature gas to achieve the purpose of cooling.

[0031] One side of the outer cylinder is connected to multiple equally spaced external spray water inlets, and a spray water control valve is fitted on the outside of the external spray water inlet.

[0032] Each spray ring is equipped with a valve that can be precisely adjusted and controlled, allowing for precise individual control of the flow rate of each spray ring.

[0033] It should be noted that when the circulating water fills the circulating water channel between the inner cylinder assembly and the outer cylinder assembly, it is collected into the water collection pipe through the water collection pipe arranged above in the opposite way of the water distributor. During the circulation process, it carries away the heat absorbed by the inner wall when it comes into contact with the high-temperature gas, ensuring that the temperature is within the design range.

[0034] Different cooling methods are used to adapt to the cooling of the gas pipeline under different operating conditions. There is basically no water accumulation in the subsequent pipeline, which saves water resources. The atomized spray water comes into contact with the high-temperature gas, with a large contact area and good cooling effect. The water is collected into the water collection pipe arranged above in the opposite way of the water distributor. During the circulation process, the water carries away the heat absorbed by the inner wall in contact with the high-temperature gas, ensuring that the temperature is within the design range.

[0035] It should be noted that the water distribution bars are used to control the water flow corresponding to each channel, reduce the dead zone between the inner and outer cylinder components, and calculate the total amount of spray water required according to the actual working conditions. Each group of spray rings is equipped with a valve that can be precisely adjusted and controlled, which can accurately control the flow rate of each group of spray rings individually. Under different test conditions, the spray volume can be adjusted and varied, and the atomization evaporation rate of the spray water can basically reach more than 90% of the total spray volume.

[0036] The working principle of the above embodiment is as follows: During the operation of the circulating water, the circulating water enters the outer cylinder through the circulating water interface, the front, middle and rear water distribution pipes, and then enters the circulating water channel between the inner cylinder assembly and the outer cylinder assembly. The outer cylinder circulating water distribution pipe has a water passage, and the circulating water can pass through the water distributor. When the circulating water fills the circulating water channel between the inner cylinder assembly and the outer cylinder assembly, it is collected into the water distribution pipe arranged above in the opposite manner of the water distributor. During the circulation process, it carries away the heat absorbed by the inner wall and the high-temperature gas, ensuring that the temperature is within the design range. There are water distribution ribs between the inner cylinder assembly and the outer cylinder assembly to control the water flow corresponding to each channel and reduce the dead zone between the inner cylinder assembly and the outer cylinder assembly. The spray ring and the spray atomizing head allow the spray water to enter the spray ring through the spray water control valve and the spray water interface. After being atomized by the spray atomizing head on the spray ring, it is fully mixed with the high-temperature gas to achieve the purpose of cooling.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cooling method for temperature conditioning, characterized in that, Includes the following steps: 1) Under low operating conditions, circulating water enters the circulating water channel through the circulating water interface; 2) During the circulation of the circulating water in the circulating water channel, it will carry away the heat from the contact between the inner wall of the pipe and the gas. 3) Under heavy operating conditions, the spray water enters the spray ring through the spray water control valve and the spray water interface; 4) When the spray water enters the spray ring, it is atomized by the spray atomizing head on the upper side and then fully mixed with the high-temperature gas to cool it down.

2. A cooling method according to claim 1, characterized in that: The main body of the gas pipeline includes an outer cylinder, an inner cylinder, a rear flange, and a front flange. The two ends of the outer cylinder and the inner cylinder are respectively connected to the rear flange and the front flange, and a circulating water channel is formed between the inner cylinder and the outer cylinder. A water distribution rib is fixed in the circulating water channel.

3. A cooling method according to claim 2, wherein: The outer cylinder is connected from left to right to a linearly distributed front-end water collection pipe, a middle-end water collection pipe, and a rear-end water collection pipe. The other end of each of the three water collection pipes is fixed with a circulating water interface.

4. The cooling method of claim 3, wherein: One side of the front flange is connected to a front orifice plate flange spray water interface. A flange spray water control valve is installed inside the front orifice plate flange spray water interface. A spray ring is installed inside the inner cylinder. At least two spray atomizing heads are connected to the outside of the spray ring.

5. The cooling and temperature regulation method according to claim 4, characterized in that: The outer cylinder has multiple equally spaced external spray water inlets connected to one side, and a spray water control valve is sleeved on the outside of the external spray water inlet.

6. The cooling and temperature regulation method according to claim 5, characterized in that: Each set of water spray rings is equipped with a valve that can be precisely adjusted and controlled, allowing for precise individual control of the flow rate of each set of water spray rings.

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