A water replenishment system

Abstract

The present invention discloses a water replenishment system, which performs preliminary adjustment on the water pressure and water flow of tap water through a water supply device, and then delivers the tap water to the water replenishment device for secondary adjustment, thereby realizing reasonable regulation of the water pressure and water flow; a water vapor separator is also provided in the water replenishment system to further separate liquid water in the steam and deliver the liquid water to the water replenishment device, which not only improves the quality of the steam product, but also further improves the efficiency of steam conversion, and can improve energy utilization to a certain extent, which is of great significance to the long-term stable operation of the equipment.

Description

Technical Field

[0001] The invention belongs to the technical field of steam treatment, and in particular relates to a water replenishment system. Background Art

[0002] Existing steam boiler heating systems mostly use tap water to heat steam products. The entire heating cycle includes steps such as circulating water replenishment and water vapor separation. However, the existing water replenishment system cannot efficiently deliver the liquid water after water vapor separation into the circulating water replenishment process. At the same time, during the circulating water replenishment process, there is a lack of effective means to unify the separated liquid water and the water in the circulating water circuit, and the water volume cannot be regulated in real time. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a water replenishment system, comprising:

[0004] A water supply device stores working water and is provided with a third water inlet at the bottom or near the lower end; a water replenishment device is provided with a water storage chamber and is provided with a first water inlet connected to the water storage chamber at the top, a first water outlet connected to the water storage chamber is provided at the bottom, and a second water inlet connected to the water storage chamber is provided near the lower end, the third water inlet is connected to the first water inlet, and the first water inlet is provided with a valve, and the opening and closing of the first water inlet is controlled by the valve; a water vapor separator is provided with a separation chamber and is provided with an inlet flow channel and a steam outlet connected to the separation chamber at the top, the inlet flow channel is spirally bent to form a downward rotating steam flow, the separation chamber is provided with a second water outlet at the bottom, the second water outlet is provided with a separation pipeline, and the second water inlet is connected to the separation pipeline.

[0005] According to some embodiments of the present invention, the separation pipeline has one or more U-shaped pipe sections, and a sewage outlet is provided at the bottom of the U-shaped pipe section.

[0006] According to some embodiments of the present invention, the separation pipeline includes a circulating water pipe and a sewage pipe, the sewage pipe is located below the circulating water pipe, and both ends of the sewage pipe are connected to the circulating water pipe, and the sewage pipe is a U-shaped pipe.

[0007] According to some embodiments of the present invention, the valve is configured as a high-precision water level control float valve.

[0008] According to some embodiments of the present invention, the valve seat is provided with a water inlet chamber, a water lock chamber and a valve plate located therebetween, the water inlet chamber is provided with a water inlet channel at the center position corresponding to the valve plate, the cross-sectional area of ​​the water inlet channel is smaller than the cross-sectional area of ​​the water lock chamber, a drain port is provided at the center position of one end of the water lock chamber away from the valve plate, a water pass structure is provided at the center position of the valve plate, so that water with a certain pressure in the water inlet channel can enter the water lock chamber through the water pass structure, the float is passed through the valve seat by a piston rod whose axis coincides with the center position of the valve plate, and the piston rod can close the drain port from the outside of the drain port during its movement.

[0009] According to some embodiments of the present invention, the valve seat is provided with an upper valve body and a lower valve body, the upper valve body and the lower valve body are connected as a whole by a flange to form a cavity, the valve plate is pressed between the two and divides the cavity into the water inlet cavity located at the upper end and the water lock cavity located at the lower end.

[0010] According to some embodiments of the present invention, a water inlet pipe fitting is provided at the central axis position of the upper valve body, the water inlet channel is opened on the water inlet pipe fitting, the lower end of the water inlet channel is set as a conical valve port, a positioning surface perpendicular to the center line of the water inlet channel is provided in the middle of the outer tube wall of the water inlet pipe fitting, and a depth positioning ring is provided at the upper end of the upper valve body corresponding to the positioning surface. When the water inlet pipe fitting is installed on the upper valve body, the positioning surface is pressed against the depth positioning ring to accurately position the depth dimension of the conical valve port in the upper valve body.

[0011] According to some embodiments of the present invention, the water inlet pipe is integrally connected to the upper valve body through a threaded connection.

[0012] According to some embodiments of the present invention, a pressing platform is provided at the lower end of the upper valve body, and the end face of the pressing platform, the end face of the depth positioning ring and the flange surface at the lower end of the upper valve body are parallel to each other. The lower valve body is provided with a high step corresponding to the pressing platform, and the step surface of the high step is parallel to the flange surface at the upper end of the lower valve body. The valve plate is pressed between the pressing platform and the high step.

[0013] According to some embodiments of the present invention, the valve plate is made of high temperature resistant rubber, a concentric positioning ring is provided on the lower end face of the valve plate, a concentric positioning groove is provided on the lower valve body, the axis of the concentric positioning groove coincides with the central axis of the lower valve body, and the concentric positioning ring is embedded in the concentric positioning groove.

[0014] According to some embodiments of the present invention, a boss is provided at the center of the valve plate within the area surrounded by the concentric positioning rings, the interior of the boss is filled with a reinforcing metal sheet, a conical mounting hole which is larger at the top and smaller at the bottom is provided at the center of the reinforcing metal sheet, and a plunger is installed through the conical mounting hole, the plunger is made of a hard material, and the cross-sectional size of the plunger is larger than the size of the water inlet channel, a water hole is provided at the center of the plunger, and the cross-sectional area of ​​the water hole is smaller than the cross-sectional area of ​​the water inlet channel.

[0015] According to some embodiments of the present invention, a conical valve core that cooperates with the conical valve port is provided at one end of the plunger close to the water inlet channel, and the end of the conical valve core is an annular platform.

[0016] According to some embodiments of the present invention, a water control component is detachably provided at the central axis position of the lower valve body, the water drain port is opened on the water control component, and a cylinder penetrating the water through hole is provided at the upper end of the water control component, an annular water flow gap is reserved between the cylinder and the water through hole, and the cross-sectional area of ​​the water flow gap is smaller than the cross-sectional area of ​​the drain port, thereby forming the water flow structure through the water flow gap.

[0017] According to some embodiments of the present invention, a limiting pressure plate is arranged above the valve plate, a clearance hole for the plunger to pass through is opened in the center of the limiting pressure plate, a low step is arranged on the inner side of the high step, the projection of the outer edge position of the boss on the horizontal plane falls on the low step, the radial length of the area of ​​the valve plate surrounded by the concentric positioning groove is greater than the diameter of the concentric positioning groove, and when the plunger abuts against the end of the water inlet channel and when the boss abuts against the low step, the valve plate does not undergo tensile deformation.

[0018] According to some embodiments of the present invention, a plurality of water holes are provided on the limiting pressing plate, and the limiting pressing plate is adapted to the valve plate. When the plunger abuts against the end of the water inlet channel, the valve plate fits against the limiting pressing plate.

[0019] According to some embodiments of the present invention, a conical spring is disposed in the water locking cavity, and the upper end of the conical spring supports the valve plate.

[0020] According to some embodiments of the present invention, the valve seat is provided with a mounting wall on the outer side of the drain port, and the piston rod is penetrated through a position on the mounting wall corresponding to the drain port.

[0021] According to some embodiments of the present invention, the valve seat is provided with a circle of extension wall extending outward from the drain port, a cover plate is installed at the end of the extension wall, the installation wall is formed by the cover plate, and a drain port is opened on the cover plate.

[0022] According to some embodiments of the present invention, a silicone pad is provided at one end of the piston rod close to the drain port.

[0023] According to some embodiments of the present invention, a plurality of float valve water outlets are provided in the circumferential direction of the water inlet cavity, and the sum of the cross-sectional areas of the float valve water outlets is greater than the cross-sectional area of ​​the water inlet channel.

[0024] The working principle of the high-precision water level control float valve in the present invention is as follows:

[0025] Under the action of external water pressure, the water in the water inlet channel of the float valve is continuously injected into the water lock chamber through the water-passing structure in the center of the valve plate. The water lock chamber is always kept full of water. By utilizing the incompressible characteristics of water, as long as the size of the water discharge resistance is adjusted (reflected in the opening and closing size of the water discharge port), the water pressure in the water lock chamber will change synchronously, and the force on both sides of the valve plate will lose balance, causing the valve plate to move and change the valve opening, the water flow rate changes, and the change in water flow rate causes the water pressure in the water inlet channel to change, which produces a reaction force on the valve plate, thereby achieving a new dynamic balance.

[0026] Specifically, when the water level rises, the float drives the piston rod to move upward, the gap between the rubber at the top of the piston rod and the drain port is reduced, the drain resistance increases, the water pressure in the water lock chamber increases, the valve plate moves upward, the width between the plunger and the water inlet channel decreases, the water inlet volume decreases, and the reduction in water flow causes the water pressure in the water inlet channel to increase. The valve plate is subjected to opposite forces until the forces on both sides of the valve plate are equal and the displacement stops. When the water level continues to rise and the piston rod continues to move upward to block the drain port, the water discharge is zero, the water pressure in the water lock chamber reaches the maximum, and is the same as the water pressure in the water inlet channel. Since the cross-sectional area of ​​the water lock chamber is larger than the cross-sectional area of ​​the water inlet channel, the valve plate is pushed upward until the valve is closed.

[0027] When the water level drops, the float drives the piston rod downward, and the gap between the rubber pad at the top of the piston rod and the drain port increases, the drain resistance decreases, the water pressure in the water lock chamber decreases, the valve plate moves downward, the water inflow increases, and the increase in water flow causes the water pressure in the water inlet channel to decrease. The valve plate is subjected to opposite forces until the forces on both sides of the valve plate are equal and the displacement stops. When the water level continues to drop and the piston rod drops to the lowest position, the water discharge from the drain port is the largest, the water pressure in the water lock chamber is the lowest, the valve plate drops to the lowest, and the water inflow reaches the maximum. The size of the gap between the silicone pad at the top of the piston rod and the drain port determines the size of the valve opening, thereby controlling the amount of water inflow.

[0028] The beneficial effects of the present invention are:

[0029] The water replenishment system provided by the present invention performs preliminary adjustment on the water pressure and water flow of tap water through a water supply device, and then delivers the tap water to the water replenishment device for secondary adjustment, thereby realizing reasonable regulation of the water pressure and water flow; a water vapor separator is also provided in the water replenishment system to further separate the liquid water in the steam and deliver the separated liquid water to the water replenishment device, so that the separated liquid water can efficiently participate in the circulating water replenishment process, thereby improving the quality of the steam product and further improving the efficiency of steam conversion, and can also improve the energy utilization rate to a certain extent, which is of great significance to the long-term stable operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention is further described below in conjunction with the accompanying drawings and embodiments:

[0031] Figure 1 It is a schematic diagram of the structure of the water replenishment system of the present invention;

[0032] Figure 2 It is a schematic diagram of the working principle of the steam furnace of the present invention;

[0033] Figure 3 It is a structural decomposition schematic diagram of the high-precision water level control float valve of the present invention;

[0034] Figure 4 This is a schematic diagram of the valve plate locking water state;

[0035] Figure 5 This is a schematic diagram of the water inlet state of the valve plate;

[0036] Figure 6 It is a structural schematic diagram of a valve plate;

[0037] Figure 7 It is a structural schematic diagram of the upper valve body;

[0038] Figure 8 It is a structural schematic diagram of a water control component;

[0039] Reference numerals:

[0040] 100-water replenishment device, 101-water vapor separator, 102-inlet flow channel, 103-steam outlet, 104-second water outlet, 105-drain pipe, 106-circulating water pipe, 107-first water inlet, 108-first water outlet, 109-second water inlet, 110-water supply device, 111-third water inlet;

[0041] 1101-upper valve body, 1102-limiting pressure piece, 1103-plunger, 1104-valve plate, 1105-cone spring, 1106-lower valve body, 1107-water control component, 1108-silicone pad, 1109-piston rod, 1110-sliding bearing, 1111-cover plate, 1112-floating ball, 1113-extension wall;

[0042] 1201-water inlet channel, 1202-water outlet of float valve, 1203-water inlet chamber, 1204-water lock chamber, 1205-water drain, 1206-water outlet, 1207-reinforced metal sheet, 1208-concentric positioning ring, 1209-depth positioning ring, 1210-conical mounting hole, 1211-cylinder, 1212-conical valve core, 1213-water hole, 1214-through hole. DETAILED DESCRIPTION

[0043] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0044] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to 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 invention.

[0045] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0046] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0047] Reference Figures 1-2The present invention discloses a water replenishment system used in a steam furnace heating system. Here, the circulation process of the steam furnace heating system is briefly described. First, the tap water heated by the steam furnace is heated once, and then the hot water is transported to the water supply device 110 and the steam is transported to the water vapor separator 101. Then, all the hot water obtained after treatment is uniformly stored in the water replenishment device 100, and then the subsequent heating is carried out and the above cycle is repeated again, thereby forming a complete heating cycle process. The essence of such a cyclic heating method is to use multiple heating and gradual heating. Different from the traditional one-time heating method, it can greatly improve the steam conversion efficiency, improve the energy utilization rate to a certain extent, and has great significance for the long-term stable operation of the equipment.

[0048] A water replenishment system disclosed in this embodiment mainly includes (such as Figure 1 shown):

[0049] The water supply device 110 stores working water and is provided with a third water inlet 111 at the bottom or near the lower end;

[0050] The water replenishing device 100 is provided with a water storage cavity, and a first water inlet 107 communicating with the water storage cavity is provided at the top, a first water outlet 108 communicating with the water storage cavity is provided at the bottom, a second water inlet 109 communicating with the water storage cavity is provided near the lower end, a third water inlet 111 is communicated with the first water inlet 107, and the first water inlet 107 is provided with a valve, and the opening and closing of the first water inlet 107 is controlled by the valve;

[0051] The water vapor separator 101 is provided with a separation chamber, and an inlet flow channel 102 and a steam outlet 103 connected to the separation chamber are provided at the top. The inlet flow channel 102 is spirally bent to form a downward rotating steam flow. A second water outlet 104 is provided at the bottom of the separation chamber. The second water outlet 104 is provided with a separation pipeline, and is connected to the second water inlet 109 through the separation pipeline. The water vapor separator 101 here forms a rotating downward steam flow by directly guiding the steam to the side wall of the separation chamber. On the one hand, it can make the steam fully contact with the inner wall of the separation chamber to improve the effect of water vapor separation. On the other hand, it can quickly output steam to avoid large-scale liquefaction due to the long flow time of steam to the bottom of the separation chamber. Therefore, to a certain extent, it can improve the water vapor separation efficiency and steam discharge efficiency. Moreover, after the separated water flows into the water replenishment device 100 from the second water inlet 109 through the separation pipeline, it can re-participate in the entire circulation heating and water replenishment process.

[0052] In combination with the above-mentioned specific structure, the specific water replenishment process is to make a preliminary adjustment to the water pressure and water flow of the tap water through the water supply device 110, and then transport it to the water replenishment device 100 for secondary adjustment, so as to achieve reasonable regulation of the water pressure and water flow; in particular, the water inlet of the water supply device 110 is generally set to 4 to facilitate diversion regulation.

[0053] Since the separation pipeline has one or more U-shaped pipe sections, impurities are mostly deposited at the bottom of the U-shaped pipe section, so a sewage outlet can be set at the bottom of the U-shaped pipe section to achieve the purpose of sewage discharge.

[0054] Specifically, the separation pipeline includes a circulating water pipe 106 and a sewage pipe 105. The sewage pipe 105 is located below the circulating water pipe 106, and both ends of the sewage pipe 105 are connected to the circulating water pipe 106. The sewage pipe 105 is configured as a U-shaped pipe, so that the above-mentioned U-shaped pipe section can be formed through the sewage pipe 105 for impurity precipitation, so that technicians can regularly clean impurities through the sewage outlet on the U-shaped pipe section, thereby achieving the purpose of improving the water quality of circulating water replenishment.

[0055] Here, considering that the valve needs to have an automatic water replenishment function, the valve is set as a high-precision water level control float valve, which has a strong control capability.

[0056] The specific structure and function of the high-precision water level control float valve are further disclosed here:

[0057] Reference Figures 3 to 7 A high-precision water level control float valve according to an embodiment of the present invention comprises a valve seat and a float 1112, wherein the valve seat is provided with a water inlet chamber 1203 and a water lock chamber 1204 whose centers coincide with each other, and a valve plate 1104 located therebetween, wherein the water inlet chamber 1203 is provided with a water inlet channel 1201 at a central position corresponding to the valve plate 1104, wherein the cross-sectional area of ​​the water inlet channel 1201 is smaller than the cross-sectional area of ​​the water lock chamber 1204, wherein a water drain port 1205 is provided at a central position of one end of the water lock chamber 1204 away from the valve plate 1104, wherein a water passing structure is provided at a central position of the valve plate 1104, so that water with a certain pressure in the water inlet channel 1201 can enter the water lock chamber 1204 through the water passing structure, wherein the float 1112 is passed through the valve seat by a piston rod 1109 whose axis coincides with the central position of the valve plate 1104, and wherein the piston rod 1109 can close the water drain port 1205 from the outside of the water drain port 1205 during movement. Reference Figure 5 A plurality of float valve water outlets 1202 are provided in the circumferential direction of the water inlet chamber 1203 , and the sum of the cross-sectional areas of the float valve water outlets 1202 is greater than the cross-sectional area of ​​the water inlet channel 1201 .

[0058] Specifically, the valve seat is provided with an upper valve body 1101 and a lower valve body 1106, and the upper valve body 1101 and the lower valve body 1106 are connected as a whole by a flange to form a cavity, and the valve plate 1104 is pressed between the two and divides the cavity into a water inlet cavity 1203 at the upper end and a water lock cavity 1204 at the lower end.

[0059] The water inlet pipe fitting 1100 is arranged at the central axis of the upper valve body 1101, the water inlet flow channel 1201 is opened at the axis of the water inlet pipe fitting 1100, the lower end of the water inlet flow channel 1201 is arranged as a conical valve port, the middle part of the outer wall of the water inlet pipe fitting 1100 is arranged with a positioning surface perpendicular to the center line of the water inlet flow channel 1201, and the upper end of the upper valve body 1101 is arranged with a depth positioning ring 1209 corresponding to the positioning surface. When the water inlet pipe fitting 1100 is installed on the upper valve body 1101, the positioning surface abuts against the depth positioning ring 1209 to accurately locate the depth dimension of the conical valve port in the upper valve body 1101. The water inlet pipe fitting 1100 is connected to the upper valve body 1101 as a whole through a threaded connection.

[0060] With such a structure, the connection strength between the upper valve body 1101 and the lower valve body 1106 is much better than the prior art with patent number CN101825905B, and is suitable for high-pressure situations. Moreover, the flange connection can effectively improve the assembly accuracy, ensure the parallelism between the flange surface of the lower end face of the upper valve body 1101 and the depth positioning ring 1209, and thus accurately locate the direction and position of the lower end face of the water inlet pipe 1100. In this way, combined with the coaxially arranged valve plate 1104, piston rod 1109 and other structures, the processing accuracy can be effectively ensured and the processing is convenient.

[0061] In order to achieve the installation of the valve plate 1104, preferably, a press table is provided at the lower end of the upper valve body 1101, and the end face of the press table, the end face of the depth positioning ring 1209 and the flange surface at the lower end of the upper valve body 1101 are parallel to each other, and a high step is provided corresponding to the press table of the lower valve body 1106, and the step surface of the high step is parallel to the flange surface at the upper end of the lower valve body 1106, and the valve plate 1104 is pressed between the press table and the high step. The valve plate 1104 is made of high temperature resistant rubber, and a concentric positioning ring 1208 is provided at the lower end face of the valve plate 1104, and a concentric positioning groove is provided on the lower valve body 1106, and the axis of the concentric positioning groove coincides with the central axis of the lower valve body 1106, and the concentric positioning ring 1208 is embedded in the concentric positioning groove to ensure that there is no positional deviation during the working process.

[0062] Further, see Figure 6A boss is provided at the center of the valve plate 1104 in the area surrounded by the concentric positioning ring 1208, and the inside of the boss is filled with a reinforcing metal sheet 1207. A conical mounting hole 1210 with a larger top and a smaller bottom is provided in the center of the reinforcing metal sheet 1207, and a plunger 1103 is installed through the conical mounting hole 1210. The plunger 1103 is made of a hard material, and the cross-sectional size of the plunger 1103 is larger than the size of the water inlet channel 1201. A water hole 1213 is provided at the center of the plunger 1103, and the cross-sectional area of ​​the water hole 1213 is smaller than the cross-sectional area of ​​the water inlet channel 1201.

[0063] Reference Figure 4 , Figure 5 and Figure 8 , and a conical valve core 1212 matching the conical valve port is provided at one end of the plunger 1103 close to the water inlet channel 1201, and the end of the conical valve core 1212 is a plane, and due to the existence of the water through hole 1213, the end of the conical valve core 1212 is an annular platform. When the valve plate 1104 is close to the water inlet channel 1201, the conical valve port at the end of the water inlet channel 1201 can be inserted by the conical valve core 1212 to achieve closure, and the area of ​​the annular platform and the area of ​​the conical surface together constitute the force bearing surface of the plunger 1103 moving downward.

[0064] A water control component 1107 is detachably provided at the center axis of the lower valve body 1106, and a drain port 1205 is provided on the water control component 1107. Figure 4 , Figure 5 and Figure 8 The upper end of the water control component 1107 is provided with a cylinder 1211 penetrating a water hole 1213, and an annular water gap is reserved between the cylinder 1211 and the water hole 1213, and the cross-sectional area of ​​the water gap is smaller than the cross-sectional area of ​​the drain port 1205, so that a water passing structure is formed through the water gap. The drain port 1205 is provided at the bottom of the water control component 1107, and in order to achieve the communication between the drain port 1205 and the water locking chamber 1204, refer to Figure 8 A transverse through hole 1214 is provided at the bottom of the water control component 1107 . The through hole 1214 passes through the water control component 1107 transversely so that both ends are connected to the water locking cavity 1204 . The upper end of the water drain port 1205 is connected to the through hole 1214 .

[0065] A limiting pressure plate 1102 is arranged above the valve plate 1104, and a makeshift hole for the plunger 1103 to pass through is opened in the center of the limiting pressure plate 1102. A low step is arranged on the inner side of the high step of the lower valve body 1106, and the projection of the outer edge position of the boss on the horizontal plane falls on the low step. The radial length of the area of ​​the valve plate 1104 surrounded by the concentric positioning grooves is greater than the diameter of the concentric positioning grooves, and when the plunger 1103 abuts against the end of the water inlet channel 1201 and when the boss abuts against the low step, the valve plate 104 does not undergo tensile deformation.

[0066] Furthermore, a plurality of water holes are provided on the limiting pressing sheet 1102, and the limiting pressing sheet 1102 is adapted to the valve sheet 1104. When the plunger 1103 abuts against the end of the water inlet channel 1201, the valve sheet 1104 fits the limiting pressing sheet 1102. The water gap and the water holes together provide a water inlet and outlet channel between the valve sheet 1104 and the limiting pressing sheet 1102 when the valve sheet 1104 moves up and down, thereby avoiding the phenomenon of air suction and adhesion between the two, and ensuring the flexibility of the valve sheet 1104 moving up and down.

[0067] The float valve with the above-mentioned structure is adopted, the cooperation between the metal sheet 1207 and the low step is strengthened to realize the downward limit of the valve plate 1104, the cooperation between the plunger 1103 and the end of the water inlet pipe and the cooperation between the valve plate 1104 and the limiting pressure plate 1102 are realized to realize the upward limit of the valve plate 1104. Compared with the prior art with patent number CN101825905B, the valve plate 1104 does not undergo tensile deformation during the entire up and down movement, and can effectively extend the service life under high pressure and high temperature working conditions. Therefore, it is suitable for steam boilers.

[0068] The entire structure is concentrically arranged, so each structure can be manufactured by one machining center, while the prior art with patent number CN101825905B requires turning and milling, that is, multiple machining centers are required for processing and manufacturing, so the production efficiency is higher and the dimensional accuracy is higher. In addition, the entire structure is concentrically arranged, and the required installation size is smaller and the application range is wider than that of the prior art with patent number CN101825905B.

[0069] Since the water inlet chamber 1203 is provided with a float valve outlet 1202, when the valve plate 1104 moves downward, the thrust will not be too large. On the contrary, when the valve plate 1104 moves upward, the water pressure in the water lock chamber 1204 will exert a greater pressure on the valve plate 1104. Therefore, the setting of the limit pressing plate 1102 can effectively prevent the valve plate 1104 from being stretched and deformed due to the water pressure in the water lock chamber 1204, and effectively extend the service life of the valve plate 1104. The setting of the low step can effectively prevent the valve plate 1104 from being deformed when it moves downward, and perform downward limit. Correspondingly, the plunger 1103 is installed through the tapered mounting hole 1210, which can effectively ensure that the thrust on the valve plate 1104 acts on the plunger 1103.

[0070] Since the cylinder 1211 and the plunger 1103 are both made of hard materials, and the plunger 1103 moves up and down relative to the cylinder 1211 during operation, the water gap formed is dynamic, and the dynamic water gap structure has the function of preventing debris particles from blocking the annular water gap, and the tiny particles that can pass through the annular water gap and enter the water lock cavity 1204 can be smoothly discharged from the drain port 1205, and will not accumulate in the water lock cavity 1204, ensuring that the water lock cavity 1204 has a long-term, stable and reliable water control function. This is an effect that the prior art with patent number CN101825905B cannot achieve.

[0071] As the working time increases, the cylinder 1211 may be worn, so the detachable setting can realize the disassembly and replacement of the cylinder 1211. The prior art with patent number CN101825905B requires the float valve to be replaced as a whole. Therefore, compared with the prior art with patent number CN101825905B, the cost of use is greatly reduced.

[0072] Further, a conical spring 1105 is provided in the water lock chamber 1204, and the upper end of the conical spring 1105 supports the valve plate 1104. The conical spring 1105 presets a certain upward thrust to the valve plate 1104 to ensure that the water can be locked when the water lock chamber 1204 loses pressure under low water pressure.

[0073] like Figure 4 and Figure 5 As shown, in some embodiments, the valve seat is extended to the outside of the drain port 1205 with a circle of extension wall 1113, and a cover plate 1111 is installed at the end of the extension wall 1113. A mounting wall is formed on the outside of the drain port 1205 through the cover plate 1111, and a drain port 1206 is opened on the cover plate 1111. The piston rod 1109 is penetrated through a sliding bearing 1110 at a position on the cover plate 1111 corresponding to the drain port 1205.

[0074] In addition, a silicone pad 1108 is provided at one end of the piston rod 1109 close to the drain port 1205 to ensure the sealing of the drain port 1205 .

[0075] In the prior art with patent number CN101825905B, the piston part is an eccentric structure, so it will swing and wear severely, while in the present invention, it is changed to a concentric structure, which has more stable movement and longer service life.

[0076] The working principle of the high-precision water level control float valve in the present invention is as follows:

[0077] Under the action of external water pressure, the water in the water inlet channel 1201 of the float valve is continuously injected into the water locking chamber 1204 through the water passing structure in the center of the valve plate 1104, and the water locking chamber 1204 is always kept full of water. By utilizing the incompressible property of water, as long as the size of the water discharge resistance is adjusted (reflected in the opening and closing size of the water discharge port 1205), the water pressure in the water locking chamber 1204 will change synchronously, and the force on both sides of the valve plate 1104 will lose balance, causing the valve plate 1104 to move and change the opening of the valve, and the water flow rate changes. The change in water flow rate causes the water pressure in the water inlet channel 1201 to change, which generates a reaction force on the valve plate 1104, thereby achieving a new dynamic balance.

[0078] Specifically, when the water level rises and the float 1112 drives the piston rod 1109 to move upward, the gap between the rubber at the top of the piston rod 1109 and the drain port 1205 is reduced, the drain resistance is increased, the water pressure in the water lock chamber 1204 is increased, the valve plate 1104 is displaced upward, the width between the plunger 1103 and the water inlet channel 1201 is reduced, the water intake is reduced, and the reduction in water flow rate causes the water pressure in the water inlet channel 1201 to increase, and the valve plate 1104 is subjected to opposite forces until the forces on both sides of the valve plate 1104 are equal and the displacement stops. When the water level continues to rise and the piston rod 1109 continues to move upward to block the drain port 1205, the water leakage is zero, and the water pressure in the water lock chamber 1204 reaches the maximum, which is the same as the water pressure in the water inlet channel 1201. Since the cross-sectional area of ​​the water lock chamber 1204 is larger than the cross-sectional area of ​​the water inlet channel 1201, the valve plate 1104 is pushed upward and moves upward until the valve is closed.

[0079] When the water level drops, the float 1112 drives the piston rod 1109 to move downward, the gap between the rubber at the top of the piston rod 1109 and the drain port 1205 increases, the drain resistance decreases, the water pressure in the water lock chamber 1204 decreases, the valve plate 1104 moves downward, the water inflow increases, and the increase in water flow leads to a decrease in the water pressure of the water inlet channel 1201. The valve plate 1104 is subjected to opposite forces until the forces on both sides of the valve plate 1104 are equal and the displacement stops. When the water level continues to drop and the piston rod 1109 drops to the lowest position, the water discharge of the drain port 1205 is the largest, the water pressure in the water lock chamber 1204 is the lowest, the valve plate 1104 drops to the lowest, and the water inflow reaches the maximum. The size of the gap between the silicone pad 1108 at the top of the piston rod 1109 and the drain port 1205 determines the size of the valve opening, thereby controlling the amount of water inflow.

[0080] In summary, the high-precision water level control float valve design of the present invention has the function of automatically adjusting the water intake and following the demand changes in real time, and is particularly suitable for the water supply of circulating steam boilers. The float valve of the present invention will open the drain port 1205 when the float 1112 drops a very small distance, thereby connecting the water inlet channel 1201 to achieve water intake. Compared with the traditional float valve structure, it is more suitable for the use of steam boilers, and will not cause dry burning due to untimely water intake, and is highly practical.

[0081] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0082] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A water replenishment system, characterized in that: include: A water supply device (110) stores working water and is provided with a third water inlet (111) at the bottom or near the lower end; A water replenishment device (100) is provided with a water storage chamber, and a first water inlet (107) connected to the water storage chamber is provided at the top, a first water outlet (108) connected to the water storage chamber is provided at the bottom, a second water inlet (109) connected to the water storage chamber is provided near the lower end, the third water inlet (111) is connected to the first water inlet (107), and the first water inlet (107) is provided with a valve, and the opening and closing of the first water inlet (107) is controlled by the valve; A water vapor separator (101) is provided with a separation chamber, and an inlet flow channel (102) and a steam outlet (103) communicating with the separation chamber are provided at the top, the inlet flow channel (102) is spirally curved to form a downward rotating steam flow, a second water outlet (104) is provided at the bottom of the separation chamber, a separation pipeline is provided at the second water outlet (104), and the second water outlet (104) is connected to a second water inlet (109) via the separation pipeline, the separation pipeline has one or more U-shaped pipe sections, and a sewage outlet is provided at the bottom of the U-shaped pipe section; The valve is configured as a high-precision water level control float valve, the high-precision water level control float valve comprising a valve seat and a float (1112), the valve seat being provided with a water inlet cavity (1203) and a water lock cavity (1204) whose centers coincide with each other, and a valve plate (1104) located therebetween, the water inlet cavity (1203) being provided with a water inlet channel (1201) at a central position corresponding to the valve plate (1104), the cross-sectional area of ​​the water inlet channel (1201) being smaller than the cross-sectional area of ​​the water lock cavity (1204), the water lock cavity (1204) being away from the valve plate (1104). 04), a water drain port (1205) is provided at the center of one end thereof, a water passing structure is provided at the center of the valve plate (1104), so that water with a certain pressure in the water inlet channel (1201) can enter the water locking chamber (1204) through the water passing structure, the float (1112) is passed through the valve seat via a piston rod (1109) whose axis coincides with the center of the valve plate (1104), and the piston rod (1109) can close the water drain port (1205) from the outside of the water drain port (1205) during movement; The valve seat is provided with an upper valve body (1101) and a lower valve body (1106); the upper valve body (1101) and the lower valve body (1106) are connected as a whole via a flange to form a cavity; the valve plate (1104) is pressed between the two and divides the cavity into the water inlet cavity (1203) at the upper end and the water locking cavity (1204) at the lower end; The valve plate (1104) is made of high temperature resistant rubber, a concentric positioning ring (1208) is provided on the lower end surface of the valve plate (1104), a concentric positioning groove is provided on the lower valve body (1106), the axis of the concentric positioning groove coincides with the central axis of the lower valve body (1106), and the concentric positioning ring (1208) is embedded in the concentric positioning groove; The valve plate (1104) is provided with a boss in the area surrounded by the concentric positioning ring (1208), and the interior of the boss is filled with a reinforcing metal sheet (1207). A conical mounting hole (1210) with a larger top and a smaller bottom is provided in the center of the reinforcing metal sheet (1207), and a plunger (1103) is installed through the conical mounting hole (1210). The plunger (1103) is made of a hard material, and the cross-sectional size of the plunger (1103) is larger than the size of the water inlet channel (1201). A water through hole (1213) is provided in the center of the plunger (1103).

2. A water replenishment system according to claim 1, characterized in that: The separation pipeline comprises a circulating water pipe (106) and a sewage pipe (105); the sewage pipe (105) is located below the circulating water pipe (106), and both ends of the sewage pipe (105) are connected to the circulating water pipe (106); the sewage pipe (105) is a U-shaped pipe.

3. A water replenishment system according to claim 1, characterized in that: A water inlet pipe fitting is arranged at the center axis position of the upper valve body (1101); the water inlet flow channel (1201) is opened on the water inlet pipe fitting; the lower end of the water inlet flow channel (1201) is arranged as a conical valve port; a positioning surface perpendicular to the center line of the water inlet flow channel (1201) is arranged in the middle of the outer tube wall of the water inlet pipe fitting; a depth positioning ring (1209) is arranged at the upper end of the upper valve body (1101) corresponding to the positioning surface; when the water inlet pipe fitting is installed on the upper valve body (1101), the positioning surface abuts against the depth positioning ring (1209) to accurately position the depth dimension of the conical valve port in the upper valve body (1101).

4. A water replenishment system according to claim 3, characterized in that: A pressing platform is provided at the lower end of the upper valve body (1101), and the end face of the pressing platform, the end face of the depth positioning ring (1209) and the flange surface at the lower end of the upper valve body (1101) are parallel to each other. The lower valve body (1106) is provided with a high step corresponding to the pressing platform, and the step surface of the high step is parallel to the flange surface at the upper end of the lower valve body (1106). The valve plate (1104) is pressed between the pressing platform and the high step.

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