Rotary center cylinder high pressure electrode boiler system with stepless regulation of nitrogen pressure

Abstract

A kind of stepless regulation nitrogen pressure stabilizing rotating central cylinder high-voltage electrode boiler system, including support leg, boiler shell installed on support leg, safety valve, boiler water outlet pipeline, several small supports installed on the inner wall of boiler shell, insulating seat installed on small support, boiler inner cylinder installed on insulating seat, boiler water inlet pipeline, high-voltage electrode insulating base installed on the top of boiler shell, several high-voltage electrodes installed on the lower end of high-voltage electrode insulating base and inserted into boiler inner cylinder, nitrogen pipeline installed on the top of boiler shell, nitrogen container connected with the end of nitrogen pipeline, rotating central cylinder device installed on the central part of the bottom of boiler shell.The stepless regulation nitrogen pressure stabilizing rotating central cylinder high-voltage electrode boiler system of the application has simple structure, low investment cost, stable operation, stepless regulation, stable pressure and energy saving, and can be widely used in clean energy heating and power plant flexible peak shaving field.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of stepless regulation nitrogen pressure stabilizing rotating central cylinder high-pressure electrode boiler system, can be widely applied in clean energy heating and power plant flexibility peak shaving field. BACKGROUND

[0002] Energy is the basis for human survival and development, with the development of society and economy, the demand for energy is increasing, energy development and rational use are more and more concerned by people, at the same time, the state has made a series of response policies, so that coal-fired boiler for heating gradually out of the historical stage. Therefore, there is an urgent need for a clean and green energy heating, heating. At present, the minimum load of high-pressure electrode boiler when running is between 6%~10%, cannot achieve 0~100% load stepless regulation, causing great waste of energy;In addition, the existing high-pressure electrode boiler, basically adopt to increase the pressure stabilizing device on the system to realize system pressure stability, cannot achieve pressure stability through the boiler itself. SUMMARY

[0003] The present application provides a kind of stepless regulation nitrogen pressure stabilizing rotating central cylinder high-pressure electrode boiler system with simple structure, low investment cost, stable operation, stepless regulation, pressure stability, energy saving.

[0004] In order to achieve the above purpose, the stepless regulation nitrogen pressure stabilizing rotating central cylinder high-pressure electrode boiler system of the present application, including support leg, boiler shell installed on support leg, safety valve installed on the side of upper part of boiler shell, boiler outlet pipe installed at the bottom of boiler shell, a plurality of small supports installed on the inner wall of boiler shell, insulation seat installed on small support, boiler inner cylinder installed on insulation seat, boiler inlet pipe installed at the bottom of boiler inner cylinder, high-voltage electrode insulation base installed on the top of boiler shell, a plurality of high-voltage electrodes installed at the lower end of high-voltage electrode insulation base and inserted into the boiler inner cylinder, nitrogen gas pipe installed on the top of boiler shell, nitrogen gas container connected with the end of nitrogen gas pipe, rotating central cylinder device installed on the center of bottom of boiler shell;The rotating central cylinder device includes a drive shaft installed on the center of bottom of boiler shell, a servo motor located outside the boiler shell and connected with the lower end of the drive shaft through a shaft coupling, a central rotating shaft located inside the boiler shell and connected with the drive shaft through an insulating shaft coupling, an inner cylinder body connected with the central rotating shaft through a plurality of shaft seats, an outer cylinder body installed on the bottom of the boiler inner cylinder, and a sealing pad installed between the inner cylinder body and the outer cylinder body;The outer cylinder body is a cylindrical structure with rectangular openings uniformly arranged on the side;The inner cylinder body is a cylindrical structure composed of the same number of rectangular baffles as the rectangular openings of the outer cylinder body.

[0005] The application is a kind of boiler system with stepless regulation of nitrogen pressure stabilization and rotating center cylinder high-voltage electrode, and the nitrogen accounts for 20-70% of the volume of the boiler.

[0006] The working principle of the application is that the load change of the high-voltage electrode boiler is mainly realized by the amount of circulating water heated by the high-voltage electrode, and the boiler is 0 load when the high-voltage electrode does not contact the circulating water, and is 100% load when the effective high-voltage electrode is totally immersed in the circulating water. The application realizes the stepless regulation of the 0-100% load of the boiler by changing the liquid level of the inner cylinder of the boiler, i.e. the amount of the circulating water in which the high-voltage electrode is immersed. In addition, the nitrogen is an inert gas, which is not easy to cause chemical reaction, but can absorb the pressure change in the boiler caused by temperature change and thermal expansion and cold contraction. Therefore, the injection of a certain amount of nitrogen with pressure into the boiler can stabilize the pressure in the boiler.

[0007] The application has the stepless regulation function, and the center cylinder of the boiler is divided into an inner cylinder body and an outer cylinder body. The outer cylinder body is a cylinder with rectangular openings uniformly arranged on the side surface, and the inner cylinder body is a cylinder structure composed of rectangular baffles with the same number as the rectangular openings of the outer cylinder body. When the boiler is 0 load, the rectangular openings of the outer cylinder body are not blocked by the rectangular baffles of the inner cylinder body, and the circulating water of the boiler flows to the bottom of the boiler through the rectangular openings of the outer cylinder body without contacting the high-voltage electrode, so the circulating water does not take away any heat, and the boiler is 0 load. When the load of the boiler increases, the servo motor drives the inner cylinder body to rotate through the drive shaft, so that the rectangular openings of the outer cylinder body are gradually blocked by the rectangular baffles of the inner cylinder body. At this time, the opening part of the outer cylinder body is gradually blocked, the liquid level of the inner cylinder of the boiler gradually rises, the high-voltage electrode immersed in the circulating water of the boiler correspondingly increases, and the amount of the circulating water heated by the boiler also increases, so the load of the boiler synchronously increases. When the servo motor drives the inner cylinder body to rotate through the drive shaft until the rectangular baffles of the inner cylinder body completely block the rectangular openings of the outer cylinder body, the effective high-voltage electrode is totally immersed in the circulating water of the boiler, and the boiler reaches 100% load. The circulating water heated by the boiler flows into the top of the boiler through the rotating center cylinder device at the top and then circulates to supply heat. When the load decreases, the servo electrode reverses to reduce the blocking part of the rectangular openings of the outer cylinder body and the rectangular baffles of the inner cylinder body, and the part of the circulating water of the boiler contacting the high-voltage electrode also synchronously decreases, so the stepless regulation of the 100%-0 load of the boiler is realized.

[0008] The application is a kind of high pressure electrode boiler system with stepless regulation of nitrogen pressure stabilization, which has the function of nitrogen pressure stabilization. Nitrogen is an inert gas, which is not easy to cause chemical reaction, but can absorb the pressure change caused by temperature change and thermal expansion and contraction. Therefore, the boiler can be stabilized by injecting a certain amount of nitrogen with pressure into the boiler. The application connects the nitrogen source to the top of the high pressure electrode boiler through the nitrogen pipeline, and the nitrogen source injects 20% to 70% of the boiler volume of nitrogen with pressure into the boiler, so as to stabilize the pressure in the boiler.

[0009] The application is a kind of high pressure electrode boiler system with stepless regulation of nitrogen pressure stabilization, which can realize stepless regulation of 0 to 100% load, pressure stabilization by the boiler itself, and simple structure, low investment cost, stable operation and energy saving without increasing the configuration of the boiler circulating water system.

[0010] In summary, the application is a kind of high pressure electrode boiler system with stepless regulation of nitrogen pressure stabilization, which has simple structure, low investment cost, stable operation, stepless regulation, pressure stabilization and energy saving. BRIEF DESCRIPTION OF DRAWINGS

[0011] The application will be further described below in combination with the drawings and examples.

[0012] Figure 1 is a structural schematic diagram of the application;

[0013] Figure 2 is Figure 1 a structural schematic diagram of the rotating central cylinder device in the application;

[0014] Figure 3 is Figure 2 A-A sectional view in the application. DETAILED DESCRIPTION

[0015] In Figures 1-3The stepless regulation nitrogen pressure stabilizing rotating center cylinder high-voltage electrode boiler system comprises a supporting leg 1, a boiler shell 2 installed on the supporting leg, a safety valve 3 installed on the upper side of the boiler shell, a boiler water outlet pipeline 4 installed at the bottom of the boiler shell, a plurality of small supports 5 installed on the inner wall of the boiler shell, an insulating seat 6 installed on the small supports, a boiler inner cylinder 7 installed on the insulating seat, a boiler water inlet pipeline 8 installed at the bottom of the boiler inner cylinder, a high-voltage electrode insulating base 9 installed on the top of the boiler shell, a plurality of high-voltage electrodes 10 installed at the lower end of the high-voltage electrode insulating base and inserted into the boiler inner cylinder, a nitrogen pipeline 11 installed on the top of the boiler shell, a nitrogen container 12 connected with the end of the nitrogen pipeline, and a rotating center cylinder device installed at the center of the bottom of the boiler shell.

[0016] The stepless regulation nitrogen pressure stabilizing rotating center cylinder high-voltage electrode boiler system, wherein the nitrogen accounts for 20% to 70% of the volume of the boiler.

[0017] In summary, the preferred embodiments of the present application are described above, it should be pointed out that the present application is not limited to the specific embodiments described above, and the devices and structures not described in detail should be understood as being implemented in the ordinary way in the art; any skilled person in the art, without departing from the scope of the technical solutions of the present application, according to the technical essence of the present application, any simple modification, equivalent change and modification of the above embodiments, still belongs to the protection scope of the technical solutions of the present application.

Claims

1. A rotary center cylinder high pressure electrode boiler system for stepless regulation of nitrogen pressure, characterized in that, The utility model discloses a boiler, which comprises a supporting leg, a boiler shell mounted on the supporting leg, a safety valve mounted on the upper side of the boiler shell, a boiler outlet pipe mounted on the bottom of the boiler shell, a plurality of small supports mounted on the inner wall of the boiler shell, an insulating base mounted on the small supports, a boiler inner cylinder mounted on the insulating base, a boiler inlet pipe mounted on the bottom of the boiler inner cylinder, a high-voltage electrode insulating base mounted on the top of the boiler shell, a plurality of high-voltage electrodes mounted on the lower end of the high-voltage electrode insulating base and inserted into the boiler inner cylinder, a nitrogen pipe mounted on the top of the boiler shell, a nitrogen container connected to the end of the nitrogen pipe, and a rotary central cylinder device mounted on the central part of the bottom of the boiler shell.

2. The rotary center cylinder high pressure electrode boiler system with stepless regulation of nitrogen pressure, according to claim 1, characterized in that, The nitrogen accounts for 20-70% of the volume of the boiler.

Images