Deep degasser

Abstract

The utility model relates to a deep degasser which is mounted in a system containing a heating circulating water pipe and comprises a control cabinet, a degassing assembly, a vacuum assembly and a middle water tank, the degassing assembly, the vacuum assembly and the middle water tank are all electrically connected to the control cabinet; the degassing assembly and the middle water tank are both communicated to the vacuum assembly; the upstream of the heating circulating water pipe is communicated to the middle water tank or the degassing assembly, the middle water tank is communicated to the degassing assembly, and the degassing assembly is communicated to the downstream of the heating circulating water pipe; the degassing assembly is provided with a degassing tank, a degassing pump, a sprayer and a film distributor; the degassing tank is communicated to a heating circulating water pipe through a degassing pump; the number of the sprayers is more than two, the sprayers are arranged in the degassing tank, the sprayers are arranged on the periphery of the upper part of the degassing pump, and the sprayers are communicated to the upstream of the heating circulating water pipe; the film distributor is arranged in the middle of the top in the degassing tank and is communicated to a water outlet of the middle water tank; and the degassing pump is electrically connected with the output end of the control cabinet.

Description

Technical Field

[0001] The present application relates to the technical field of water circulation degassing equipment, and in particular to a deep degasser. Background Art

[0002] The industrial boiler water quality standard stipulates that the dissolved oxygen content of the feed water during the off-furnace chemical treatment is ≤0.1mg / L, and the boiler water should be deoxygenated as much as possible for pressure boilers and atmospheric pressure boilers with a rated power of <4.2MW. The Beijing Heating System Water Quality and Anti-corrosion Technical Regulations (DBJ01-619-2004) stipulates that the dissolved oxygen content of the circulating water of the secondary water heating system indirectly connected to the heat source is ≤0.1mg / L, and the dissolved oxygen content of the circulating water of the heating system directly connected to the boiler room is ≤0.1mg / L. At the same time, there are also relevant standards that have specific requirements for the corrosion rate of heating equipment and the inner wall of the pipeline. The key to reducing the corrosion rate of the water circulation system is to control the dissolved oxygen content index in the water. At present, it is difficult for my country's water circulation system to meet the above requirements, and its dissolved oxygen content is generally above 2mg / L. The failure of the dissolved oxygen content to meet the standard is the main reason for the corrosion and perforation of the heating water circulation system equipment, pipelines and radiators.

[0003] For this reason, people have designed a vacuum degasser to actively remove dissolved gases from the circulating water of the heating system to reduce the dissolved oxygen content of the circulating water. The typical structural principle is: a vacuum tank is set up, the upper part of the vacuum tank is connected to the upstream of the heating system circulation pipeline, a spray head is set at the inlet of the vacuum tank; the water outlet below the vacuum tank is connected to the downstream of the heating system circulation pipeline. When the equipment is running, the solenoid valve is opened, the system water enters the vacuum tank, and the gas in the tank is automatically discharged by the exhaust valve. After the liquid level reaches the set height, the solenoid valve and the water pump are automatically controlled to start and stop by the time program, and enter the cycle control.

[0004] The existing vacuum degassing machine adopts a periodic cycle working mode, and the water quality of its output is poor. There is a problem of leakage of microbubbles before stopping the pump. During the period from stopping the pump to the end of exhaust, the vacuum state in the degassing machine gradually disappears, which easily causes the degassed gas to dissolve in the water again. Therefore, the degassing performance of the existing degassing machine needs to be improved. Utility Model Content

[0005] In view of this, the present application proposes a deep degasser to solve the above problems.

[0006] The present application proposes a deep degasser, which is suitable for installation in a system containing a heating circulating water pipe, comprising: a box, a control cabinet, a degassing component, a vacuum component and an intermediate water tank; the control cabinet, the degassing component, the vacuum component and the intermediate water tank are all arranged inside the box; the degassing component, the vacuum component and the intermediate water tank are all electrically connected to the control cabinet; the degassing component and the intermediate water tank are both connected to the vacuum component;

[0007] The upstream of the heating circulation water pipe is connected to the intermediate water tank, and the intermediate water tank is connected to the degassing component, or the upstream of the heating circulation water pipe is connected to the degassing component, and the degassing component is connected to the downstream of the heating circulation water pipe;

[0008] The degassing assembly comprises a degassing tank, a degassing pump, a sprayer and a film distributor; the degassing tank is connected to the downstream of the heating circulating water pipe through the degassing pump;

[0009] The number of the sprayers is more than two, the sprayers are arranged inside the degassing tank, the sprayers are arranged on the upper periphery of the degassing pump, and the sprayers are connected to the upstream of the heating circulating water pipe;

[0010] The film distributor is arranged inside the degassing tank, the film distributor is arranged in the middle of the top of the degassing tank, and the film distributor is connected to the water outlet of the intermediate water tank; the degassing pump is electrically connected to the output end of the control cabinet.

[0011] In a possible implementation, the number of the sprayers is two to four; the sprayers are symmetrically arranged along the center line of the degassing tank, and the sprayers are arranged in a ring around the outer circumference of the film spreader; the film spreader has a conical structure, and the bottom of the film spreader extends upward and outward along the center line of the degassing tank.

[0012] In a possible implementation, the degassing tank has a filling portion; the filling portion is arranged inside the degassing tank, the filling portion is arranged in the middle of the degassing tank, and the filler in the filling portion is a microbubble aggregation flow filler.

[0013] In a possible implementation, the vacuum assembly includes: a vacuum tank and a vacuum pump; the vacuum tank is arranged above the degassing tank, and the vacuum pump is connected to the vacuum tank;

[0014] The first end of the vacuum tank is connected to the upstream of the heating circulation water pipe; the second end of the vacuum tank is connected to the degassing tank;

[0015] The air intake port of the vacuum pump is connected to the first end of the vacuum tank, the air exhaust port of the vacuum pump is connected to the upper part of the intermediate water tank, and the water inlet of the vacuum pump is connected to the lower part of the intermediate water tank.

[0016] In a possible implementation, the degassing assembly further includes: a first liquid level gauge and a positive and negative pressure remote transmission meter; the first liquid level gauge is arranged on the side wall of the degassing tank, one end of the first liquid level gauge is connected to the upper part of the degassing tank, and the other end of the first liquid level gauge is connected to the lower part of the degassing tank; the positive and negative pressure remote transmission meter is arranged on the top of the degassing tank, and the first liquid level gauge and the positive and negative pressure remote transmission meter are both electrically connected to the input end of the control cabinet.

[0017] In a possible implementation, a second liquid level gauge is provided on the side wall of the intermediate water tank, the upper part of the second liquid level gauge is connected to the intermediate water tank, and the lower part of the second liquid level gauge is connected to the intermediate water tank; the second liquid level gauge is electrically connected to the input end of the control cabinet.

[0018] In a possible implementation, the degassing assembly further includes: a temperature sensor, which is disposed inside the degassing tank, and the temperature sensor is disposed in the upper middle portion of the degassing tank; and the temperature sensor is electrically connected to an input end of the control cabinet.

[0019] In a possible implementation, it also includes: a filter; the filter is arranged between the intermediate water tank and the heating circulating water pipe, and the filter is arranged between the degassing component and the heating circulating water pipe; the inlet of the filter is connected to the upstream of the heating circulating water pipe, the outlet of the filter is connected to the degassing component, the outlet of the filter is connected to the vacuum component, and the outlet of the filter is connected to the intermediate water tank.

[0020] In a possible implementation, it also includes: a jet pump; the jet pump is arranged between the filter and the vacuum component, the water inlet of the jet pump is connected to the outlet of the filter, the air intake of the jet pump is connected to the vacuum component, and the outlet of the jet pump is connected to the intermediate water tank; the jet pump is electrically connected to the output end of the control cabinet.

[0021] In a possible implementation, it also includes: a supply water tank and a third liquid level gauge; the supply water tank is connected to the intermediate water tank, the third liquid level gauge is arranged on the side wall of the supply water tank, the upper part of the third liquid level gauge is connected to the supply water tank, and the lower part of the third liquid level gauge is connected to the supply water tank; the volume of the supply water tank is greater than the volume of the intermediate water tank; the third liquid level gauge is electrically connected to the input end of the control cabinet.

[0022] Beneficial effects of this application:

[0023] The deep degasser proposed in the present application has a simple structure and improves the performance of the degasser compared to the existing degasser. The deep degasser of the present application is based on the vacuum assembly set in the box body, and a sprayer and a film cloth are added inside the degassing tank to ensure the stability of the outlet water quality and improve the dehydration efficiency. Specifically, the degassing tank is connected to the downstream of the heating circulation water pipe through the degassing pump. Two or more sprayers are arranged on the upper periphery of the degassing pump and connected to the upstream of the heating circulation water pipe. Two or more sprayers are arranged around the periphery of the film cloth, and the film cloth is connected to the water outlet of the intermediate water tank. Thereby, the leakage of microbubbles can be controlled and the outlet water quality is guaranteed.

[0024] Other features and aspects of the present application will become apparent from the following detailed description of exemplary embodiments with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments, features, and aspects of the present application and, together with the description, serve to explain the principles of the present application.

[0026] Figure 1 A schematic structural diagram of a deep degasser according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0027] Various exemplary embodiments, features and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0028] Among them, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application or simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0030] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0031] In addition, in order to better illustrate the present application, numerous specific details are given in the following specific embodiments. It should be understood by those skilled in the art that the present application can also be implemented without certain specific details. In some examples, methods, means, components and circuits well known to those skilled in the art are not described in detail in order to highlight the subject matter of the present application.

[0032] like Figure 1 As shown, the deep degasser is suitable for installation in a system containing a heating circulating water pipe, comprising: a box body, a control cabinet 1, a degassing component, a vacuum component and an intermediate water tank; the control cabinet 1, the degassing component, the vacuum component and the intermediate water tank are all arranged inside the box body; the degassing component, the vacuum component and the intermediate water tank are all electrically connected to the control cabinet 1; the degassing component and the intermediate water tank are both connected to the vacuum component; the upstream 110 of the heating circulating water pipe is connected to the intermediate water tank, the intermediate water tank is connected to the degassing component, or the upstream 110 of the heating circulating water pipe is connected to the degassing component, and the degassing component is connected to the downstream 12 of the heating circulating water pipe 0; the degassing assembly comprises a degassing tank 3, a degassing pump 2, a sprayer GP and a film cloth BM; the degassing tank 3 is connected to the downstream 120 of the heating circulation water pipe through the degassing pump 2; the number of the sprayers GP is more than two, the sprayers GP are arranged inside the degassing tank 3, the sprayers GP are arranged on the upper periphery of the degassing pump 2, and the sprayers GP are connected to the upstream 110 of the heating circulation water pipe; the film cloth BM is arranged inside the degassing tank 3, the film cloth BM is arranged in the middle of the top of the degassing tank 3, and the film cloth BM is connected to the water outlet of the intermediate water tank; the degassing pump 2 is electrically connected to the output end of the control cabinet 1.

[0033] The deep degasser proposed in this embodiment has a simple structure. Compared with the existing degasser, the performance of the degasser is improved. On the basis of setting a vacuum component in the box, the deep degasser of this application is equipped with a sprayer GP and a film cloth BM in the degassing tank 3, which effectively solves the problem of micro-bubble leakage of the degasser, ensures the stability of the water quality of the outlet water, and improves the running flow rate in the deep degasser of this application. At a flow rate of 30m / H, the degassing efficiency can still reach 95%. The effective degassing treatment water volume is more than 5t / H. It should also be noted that the filter 8 is connected to the jet pump 6 through the electric valve D1, the vacuum tank 4 is connected to the degasser through the electric valve D2, the film cloth BM is connected to the intermediate water tank through the electric valve D3, the intermediate water tank is connected to the supply water tank 9 through the electric valve D4, and the degassing pump 2 is connected to the circulating hot water supply pipe through the electric valve D5. In addition, the degassing component, vacuum component and intermediate water tank of this application are compactly arranged in a box, and the equipment and connecting pipes in the box are all insulated. It should also be noted that the above-mentioned electric valve D1, electric valve D2, electric valve D3, electric valve D4 and electric valve D5 are all electrically connected to the output end of the control cabinet 1. The control cabinet 1 used in this application is an automatic control cabinet.

[0034] In addition, it should be noted that the software parts involved in this application can be solved by existing technologies, so they will not be described in detail in this application. The deep degasser of this application has multiple working modes and can adapt to different working conditions.

[0035] Working mode 1: When water is first added to the heating circulation system, this mode can be selected to reduce the gas content of the water in the heating system. The output end of the control cabinet 1 sends a control signal to start the electric valve D4, the electric valve D3 and the electric valve D5. According to the water level changes in the degassing tank 3 and the intermediate water tank, the working frequency of the degassing pump 2 is automatically adjusted to maintain the flow balance of the water inlet and outlet of the degassing component, and to maintain the stability and reliability of the degassing process. Specifically, the water outlet of the replenishment water tank 9 is connected to the intermediate water tank through the electric valve D4, and the water outlet of the intermediate water tank is connected to the membrane cloth BM in the degassing machine through the electric valve D3. The membrane cloth BM processes the transported water and then enters the packing part TJL of the degassing machine for filtration. The water outlet of the degassing machine is then connected to the degassing pump 2, and the degassing pump 2 is connected to the water inlet of the circulating heating pipeline through the electric valve D5. During the normal operation of the heating system, the water replenishment demand signal can also be connected to start the working mode 1.

[0036] Working mode 2: The initial stage of heating is when the degassing demand is the greatest, and it is also when the circulating water in the system containing the heating circulating water pipe has the highest gas content. The water in the circulating system loses pressure and becomes milky white. At this time, the working mode 2 fast degassing mode can be set. The output end of the control cabinet 1 sends a control signal to start the electric valve D1, electric valve D2, electric valve D3, and electric valve D5. According to the water level changes in the degassing tank 3 and the intermediate water tank, the control cabinet 1 sends a control signal to adjust the opening degree of the electric regulating valve DT1, thereby maintaining the vacuum degree in the degassing tank 3 and maintaining the flow balance of the water in and out of the degassing component. This working mode ends when there is no gas precipitation after the heating circulating water loses pressure.

[0037] Working mode 3: During the normal heating period, the circulating water in the system containing the heating circulating water pipe becomes clear after depressurization, but the oxygen content is still above 0.1 mg / L. At this time, the working mode 3 energy-saving deep degassing mode is selected. This is a low-energy intermittent degassing mode: the control cabinet 1 sends a control signal to adjust the electric regulating valve DT1. When the water level in the degassing tank 3 reaches the highest level, the electric regulating valve DT1 is closed, the vacuum pump 5 is started, the vacuum degree is maintained, and the precipitated gas mostly enters the vacuum buffer tank after waiting for 3-5 minutes. The electric valve D4 is closed, the electric regulating valve DT1 and the fifth regulating valve D5 are opened, and the pipeline pump connected in parallel with the degassing pump 2 is turned on for 5-10 minutes. After the degassed water in the degassing tank 3 is updated, the pipeline pump, the electric regulating valve DT1, and the electric valve D5 are closed to enter the next cycle. This working mode ends with the dissolved oxygen content index of the heating circulating water.

[0038] It should also be noted that the degassing pump 2 in the present invention is controlled by the frequency conversion of the control cabinet 1. The selection parameters of the degassing pump 2 are based on the pressure of the heating system and the design target flow rate. The parameters of the degassing pump 2 determine the pipe valve caliber of the overall equipment, the degassing tank 3, the intermediate water tank and the outer dimensions of the equipment box. At the same time, in order to cooperate with the energy-saving deep degassing working mode, when the pressure difference between the inlet and outlet of the degassing machine is insufficient, a low-lift, small-flow pipeline pump can be set in parallel with the degassing pump 2. The parameters of the pipeline pump are based on the volume of the degassing tank 33 and the time to complete a degassing. When the pressure difference between the inlet and outlet of the degassing machine reaches more than 5 meters of water column, a pipeline pump may not be provided.

[0039] It should also be noted that if Figure 1 As shown, from left to right, there are control cabinet 1, degassing pump 2, degassing tank 3, vacuum pump 5, intermediate water tank and water supply tank. Figure 1 In the embodiment, the degassing tank 3 is connected to a vacuum tank 4. The vacuum tank 4 is connected to a jet pump 6, and the jet pump 6 is connected to a filter 8.

[0040] In one specific embodiment, the number of sprayers GP is two to four; the sprayers GP are symmetrically arranged along the center line of the degassing tank 3, and the sprayers GP are arranged around the periphery of the film cloth BM; the film cloth BM is a conical structure, and the bottom of the film cloth BM extends upward and outward along the center line of the degassing tank 3. In this embodiment, it should be noted that the sprayer GP is preferably a high-pressure sprayer, and 2-4 sprayers GP are arranged, symmetrically arranged in the outer ring of the top of the degassing tank 3, and the parameters match the designed flow rate. The low-pressure film cloth BM is arranged in the center of the top of the degassing tank 3, and the shape is a stainless steel conical sieve tube with a thick top and a thin bottom. The wedge-shaped gap spacing is less than 0.1mm, and it is symmetrically dense in the longitudinal direction. The effective diameter is equal to the diameter of the inlet pipe. In the degassing tank 3, special sprayers GP, film cloth BM, microbubble aggregation flow fillers, and additional vacuum pumps 5 are used, so that the leakage of microbubbles can be controlled, the vacuum degree is high and stable, and the water quality of the outlet is guaranteed. The processing flow rate is significantly improved, the design flow rate of the degassing pump 2 is increased, and continuous and large-flow degassing is achieved, with fewer operating failures and quick effectiveness.

[0041] In one specific embodiment, the degassing tank 3 has a packing part TJL; the packing part TJL is arranged inside the degassing tank 3, the packing part TJL is arranged in the middle of the degassing tank 3, and the filler in the packing part TJL is a microbubble aggregation flow filler. In this embodiment, it should be noted that the microbubble aggregation flow filler can be selected from hollow balls and polyurethane sponge balls. Furthermore, the surface of the material of the packing part TJL is required to be hydrophobic to facilitate the generation, capture, aggregation, floating and overflow of microbubbles.

[0042] In one specific embodiment, the vacuum assembly includes: a vacuum tank 4 and a vacuum pump 5; the vacuum tank 4 is arranged above the degassing tank 3, and the vacuum pump 5 is connected to the vacuum tank 4; the first end of the vacuum tank 4 is connected to the upstream 110 of the heating circulation water pipe; the second end of the vacuum tank 4 is connected to the degassing tank 3; the air inlet of the vacuum pump 5 is connected to the first end of the vacuum tank 4, the exhaust port of the vacuum pump 5 is connected to the upper part of the intermediate water tank, and the water inlet of the vacuum pump 5 is connected to the lower part of the intermediate water tank. In this embodiment, it should be noted that the vacuum pump 5 rotates or reciprocates the working parts inside the pump through the driving device, thereby continuously sucking in and discharging the gas, thereby forming a vacuum environment inside the degassing tank 3. During the degassing process, the vacuum pump 5 will continue to run to extract the gas molecules in the degassing tank 3. As the gas is discharged, the pressure in the degassing tank 3 gradually decreases, forming a vacuum environment. It should also be noted that the degasser will be equipped with a vacuum gauge or a vacuum sensor to monitor the vacuum degree in the tank in real time. If the vacuum degree is insufficient, the vacuum pump 5 will increase the suction force; if the vacuum degree is too high, it may be necessary to discharge part of the gas through the exhaust port to maintain an appropriate vacuum degree. It should be further explained that the air inlet of the vacuum tank 4 is connected to the air intake port of the jet pump 6 through the first check valve, the air inlet of the vacuum tank 4 is connected to the air intake port of the vacuum pump 5 through the second check valve, and the exhaust port of the vacuum tank 4 is connected to the air inlet of the degassing tank 3 through the electric valve D2. Therefore, when the degasser starts working, the liquid to be degassed enters from the inlet of the degassing tank 3 and contacts the vacuum environment in the tank. Under the action of the vacuum, the dissolved gas and free gas in the liquid are gradually released and discharged through the exhaust port of the degassing tank 3 (i.e., the port connected to the vacuum tank 4). These gases then enter the vacuum tank 4 and are extracted under the action of the vacuum pump 5, thereby achieving the purpose of degassing. The vacuum tank 4 is a vacuum buffer tank.

[0043] In one specific embodiment, the degassing component also includes: a first liquid level gauge UHX1500 and a positive and negative pressure remote transmission meter YXC; the first liquid level gauge UHX1500 is arranged on the side wall of the degassing tank 3, one end of the first liquid level gauge UHX1500 is connected to the upper part of the degassing tank 3, and the other end of the first liquid level gauge UHX1500 is connected to the lower part of the degassing tank 3; the positive and negative pressure remote transmission meter YXC is arranged on the top of the degassing tank 3, and the first liquid level gauge UHX1500 and the positive and negative pressure remote transmission meter YXC are both electrically connected to the input end of the control cabinet 1. In this embodiment, it should be noted that the positive and negative pressure remote transmission meter YXC is arranged on the same side as the first liquid level gauge UHX1500, and the positive and negative pressure remote transmission meter YXC is arranged directly above the first liquid level gauge UHX1500, the positive and negative pressure remote transmission meter YXC and the first liquid level gauge UHX1500 are arranged between the degassing tank 3 and the vacuum pump 5, and the setting height of the positive and negative pressure remote transmission meter YXC is slightly higher than the top surface of the degassing tank 3.

[0044] In one specific embodiment, a second liquid level gauge UHX1000 is provided on the side wall of the intermediate water tank, the upper part of the second liquid level gauge UHX1000 is connected to the intermediate water tank, and the lower part of the second liquid level gauge UHX1000 is connected to the intermediate water tank; the second liquid level gauge UHX1000 is electrically connected to the input end of the control cabinet 1. In this embodiment, it should be noted that the second liquid level gauge UHX1000 is provided on one side of the intermediate water tank close to the water supply tank.

[0045] In one specific embodiment, the degassing component also includes: a temperature sensor PT, the temperature sensor PT is arranged inside the degassing tank 3, and the temperature sensor PT is arranged in the middle and upper part of the degassing tank 3; the temperature sensor PT is electrically connected to the input end of the control cabinet 1. In this embodiment, it should be noted that the degassing component contains a temperature sensor PT. Under a certain pressure, when the water temperature decreases, the solubility of the gas increases, and when the water temperature increases, the solubility of the gas decreases. The actual temperature of the water is obtained by connecting the temperature sensor PT to the control cabinet 1, which promotes the precipitation and discharge of the gas from the water, thereby achieving effective removal of the gas in the water. It should also be noted that the temperature sensor PT is used to collect the temperature of the degassing environment, and the pressure parameters obtained by the positive and negative remote transmission table are compared with the saturated water vapor temperature-pressure function curve (PT curve) compiled in the PLC program software in real time to control the vacuum range, so as to achieve the degassing depth and prevent the flash vaporization of the water body. The above measures are the application innovations of Henry's law and Fick's diffusion law. The two laws point out three directions: increasing the temperature of the water, increasing the vacuum degree of the environment, and expanding the contact area between steam and water. Under certain temperature conditions, the vacuum degree should be as close to the PT curve as possible, while maintaining an appropriate water level to prevent cavitation in the water pump.

[0046] In one specific embodiment, it also includes: a filter 8; the filter 8 is arranged between the intermediate water tank and the heating circulation water pipe, and the filter 8 is arranged between the degassing component and the heating circulation water pipe; the inlet of the filter 8 is connected to the upstream 110 of the heating circulation water pipe, the outlet of the filter 8 is connected to the degassing component, the outlet of the filter 8 is connected to the vacuum component, and the outlet of the filter 8 is connected to the intermediate water tank. In this embodiment, it should be noted that the precision filter 8 can be backwashed without disassembly, and the filtration accuracy is controlled to be above 120 meshes. The outlet of the filter 8 is connected to the sprayer GP of the degassing tank 3 through the electric regulating valve DT.

[0047] In one specific embodiment, it also includes: a jet pump 6; the jet pump 6 is arranged between the filter 8 and the vacuum component, the water inlet of the jet pump 6 is connected to the outlet of the filter 8, the air intake of the jet pump 6 is connected to the vacuum component, and the outlet of the jet pump 6 is connected to the intermediate water tank; the jet pump 6 is electrically connected to the output end of the control cabinet 1.

[0048] In one of the specific embodiments, it also includes: a supply water tank 9 and a third liquid level gauge UHX2000; the supply water tank 9 is connected to the intermediate water tank, the third liquid level gauge UHX2000 is arranged on the side wall of the supply water tank 9, the upper part of the third liquid level gauge UHX2000 is connected to the supply water tank 9, and the lower part of the third liquid level gauge UHX2000 is connected to the supply water tank 9; the volume of the supply water tank 9 is greater than the volume of the intermediate water tank; the third liquid level gauge UHX2000 is electrically connected to the input end of the control cabinet 1. In this embodiment, it should be noted that the third liquid level gauge UHX2000 is arranged on the side of the supply water tank close to the intermediate water tank. It should also be noted that the first liquid level gauge UHX1500, the second liquid level gauge UHX1000 and the third liquid level gauge UHX2000 are all magnetic flip level gauges. The first liquid level gauge UHX1500, the second liquid level gauge UHX1000 and the third liquid level gauge UHX2000 are all arranged longitudinally, and the first liquid level gauge UHX1500, the second liquid level gauge UHX1000 and the third liquid level gauge UHX2000 are all arranged vertically.

[0049] It should be noted that the upstream 110 of the heating circulation water pipe: In the circulating hot water supply system, the upstream usually refers to the location where the water flow starts, that is, the source or starting point of the water. For a centralized heating system, the upstream may be a heat source, such as a boiler, a water heater or a solar collector. In these devices, the water is heated to a set temperature and then transported to various user points through a pipe system. The downstream 120 of the heating circulation water pipe: The downstream refers to the location where the water flows through and arrives, that is, the destination or end point of the water. In a circulating hot water supply system, the downstream is usually various user points, such as radiators, floor heating pipes, hot water taps, etc. These devices receive hot water from the upstream and use it for heating or hot water supply. In a circulating hot water supply system, after the water is heated at the heat source, it is pushed by power equipment such as a water pump to form a circulating flow in the pipe system. This circulating flow ensures that the water in the system can be continuously heated and maintained within the set temperature range to meet the user's heating or hot water needs. It should be noted that in a complex heating system, there may be multiple heat sources and multiple user points, so the definitions of upstream and downstream may be relatively vague. But in general, we can roughly determine the upstream and downstream locations based on the starting and ending locations of the water flow.

[0050] In the current heating water circulation system in my country, most of them are not equipped with active deoxygenation and degassing equipment. They only set up automatic exhaust valves and / or manual exhaust valves on the top for exhaust, supplemented by measures such as deactivation of wet maintenance. These measures are passive and superficial, with general effects, and face the adverse effects of easy blockage of exhaust valves, inadequate manual execution, system maintenance air intake, structural air pockets in pipelines, high gas content in make-up water, gas precipitation when water temperature rises and water pressure decreases, etc., and cannot fundamentally solve the problem. Gas blockage occurs frequently in the early stage of operation, and the corrosion problem of the heating system is even more difficult to solve. Due to the high dissolved oxygen content in the water of the heating circulation system, a large number of heating pipes and steel radiators are prone to corrosion, perforation and leakage. At the same time, the loss of heat and hot water is huge. The heating unit needs to invest a lot of energy in leak detection and plugging of the circulation pipeline every year, which directly affects the safe operation of the entire system. Radiator manufacturers have to spend a lot of manpower and material resources to do internal corrosion protection of radiators, but even so, the anti-corrosion effect is still unsatisfactory. In Europe, because water quality control is very strict, steel radiators are not internally anti-corroded, but corrosion and leakage problems rarely occur. Therefore, strictly controlling the quality of circulating water, strengthening online degassing and deoxygenation, and actively protecting and controlling the quality of circulating water are effective measures to solve such problems.

[0051] A deep degasser proposed in the present invention adopts a special sprayer GP, a membrane cloth BM, a microbubble aggregation flow filler, and an additional vacuum pump 5. The problem of microbubble leakage is solved, the water quality of the outlet is guaranteed to be excellent, reliable and stable, and the operating flow rate is improved. At a flow rate of 30m / H, the degassing efficiency can still reach 95%. The effective degassing water volume is more than 5t / H. A stable high vacuum state is maintained during the degassing process. The degassing system is not equipped with an exhaust valve, and the valve uses an electric valve, so the degassing process is stable, continuous and deep. The valve has no switching action, the water pump has no start-stop conversion, and there will be no water hammer vibration phenomenon. The water flow in and out is balanced. A high-precision filter 8 is set at the inlet to ensure that the pump and valve operate normally, and the failure rate of the whole system is low. Because the pump and valve do not start or stop suddenly during the degassing process, the vacuum is maintained stable, and all equipment is insulated. In addition, this application introduces an energy-saving deep degassing working mode in order to achieve the goal of minimum degassing energy consumption, which is more environmentally friendly and energy-saving than other degassing machines.

[0052] It should be noted that although the present application is described as an example of a deep degasser, those skilled in the art will appreciate that the present application should not be limited thereto. In fact, the user can flexibly set parameters according to personal preferences and / or actual application scenarios, as long as they are reasonable.

[0053] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A deep degasser suitable for installation in a system containing a heating circulating water pipe, characterized in that: include: A box body, a control cabinet, a degassing component, a vacuum component and an intermediate water tank; the control cabinet, the degassing component, the vacuum component and the intermediate water tank are all arranged inside the box body; the degassing component, the vacuum component and the intermediate water tank are all electrically connected to the control cabinet; the degassing component and the intermediate water tank are both connected to the vacuum component; The upstream of the heating circulation water pipe is connected to the intermediate water tank, and the intermediate water tank is connected to the degassing component, or the upstream of the heating circulation water pipe is connected to the degassing component, and the degassing component is connected to the downstream of the heating circulation water pipe; The degassing assembly comprises a degassing tank, a degassing pump, a sprayer and a film distributor; the degassing tank is connected to the downstream of the heating circulating water pipe through the degassing pump; The number of the sprayers is more than two, the sprayers are arranged inside the degassing tank, the sprayers are arranged on the upper periphery of the degassing pump, and the sprayers are connected to the upstream of the heating circulating water pipe; The film distributor is arranged inside the degassing tank, the film distributor is arranged in the middle of the top of the degassing tank, and the film distributor is connected to the water outlet of the intermediate water tank; the degassing pump is electrically connected to the output end of the control cabinet.

2. The deep degasser according to claim 1, characterized in that: The number of the sprayers is two to four; the sprayers are symmetrically arranged along the center line of the degassing tank, and the sprayers are arranged in a ring around the outer circumference of the film spreader; the film spreader has a conical structure, and the bottom of the film spreader extends upward and outward along the center line of the degassing tank.

3. The deep degasser according to claim 1, characterized in that: The degassing tank has a filling part; the filling part is arranged inside the degassing tank, the filling part is arranged in the middle of the degassing tank, and the filler in the filling part is a microbubble aggregation flow filler.

4. The deep degasser according to claim 1, characterized in that: The vacuum assembly comprises: a vacuum tank and a vacuum pump; the vacuum tank is arranged above the degassing tank, and the vacuum pump is connected to the vacuum tank; The first end of the vacuum tank is connected to the upstream of the heating circulation water pipe; the second end of the vacuum tank is connected to the degassing tank; The air intake port of the vacuum pump is connected to the first end of the vacuum tank, the air exhaust port of the vacuum pump is connected to the upper part of the intermediate water tank, and the water inlet of the vacuum pump is connected to the lower part of the intermediate water tank.

5. The deep degasser according to claim 1, characterized in that: The degassing assembly also includes: a first liquid level gauge and a positive and negative pressure remote transmission meter; the first liquid level gauge is arranged on the side wall of the degassing tank, one end of the first liquid level gauge is connected to the upper part of the degassing tank, and the other end of the first liquid level gauge is connected to the lower part of the degassing tank; the positive and negative pressure remote transmission meter is arranged on the top of the degassing tank, and the first liquid level gauge and the positive and negative pressure remote transmission meter are both electrically connected to the input end of the control cabinet.

6. The deep degasser according to claim 1, characterized in that: A second liquid level gauge is arranged on the side wall of the intermediate water tank, the upper part of the second liquid level gauge is connected to the intermediate water tank, and the lower part of the second liquid level gauge is connected to the intermediate water tank; the second liquid level gauge is electrically connected to the input end of the control cabinet.

7. The deep degasser according to any one of claims 1 to 6, characterized in that: The degassing assembly further includes: a temperature sensor, which is arranged inside the degassing tank and in the middle and upper part of the degassing tank; the temperature sensor is electrically connected to the input end of the control cabinet.

8. The deep degasser according to claim 7, characterized in that: Also includes: Filters; The filter is arranged between the intermediate water tank and the heating circulating water pipe, and the filter is arranged between the degassing component and the heating circulating water pipe; the inlet of the filter is connected to the upstream of the heating circulating water pipe, the outlet of the filter is connected to the degassing component, the outlet of the filter is connected to the vacuum component, and the outlet of the filter is connected to the intermediate water tank.

9. The deep degasser according to claim 8, characterized in that: Also includes: A jet pump; the jet pump is arranged between the filter and the vacuum component, the water inlet of the jet pump is connected to the outlet of the filter, the air suction port of the jet pump is connected to the vacuum component, and the outlet of the jet pump is connected to the intermediate water tank; the jet pump is electrically connected to the output end of the control cabinet.

10. The deep degasser according to claim 7, characterized in that: Also includes: A supply water tank and a third liquid level gauge; the supply water tank is connected to the intermediate water tank, the third liquid level gauge is arranged on the side wall of the supply water tank, the upper part of the third liquid level gauge is connected to the supply water tank, and the lower part of the third liquid level gauge is connected to the supply water tank; the volume of the supply water tank is greater than the volume of the intermediate water tank; the third liquid level gauge is electrically connected to the input end of the control cabinet.

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