Steam condensate storage conveyor for industrial boilers

Abstract

The utility model discloses a steam condensate water storage conveyor for industrial boiler, including condensate storage tank, steam water separator, heat deaerator and the steam condensate water inlet pipe of connecting in steam water separator right side, the condensate storage tank is passed through first conveying pipe intercommunication with steam water separator, and is installed with first water purification mechanism on this first conveying pipe, be equipped with second conveying pipe between steam water separator and heat deaerator, and is installed with second water purification mechanism on this second conveying pipe, the utility model can carry out purification and impurity removal to the steam condensate water of entering heat deaerator and condensate storage tank inside, greatly reduce the content of impurity in steam condensate water, reduced the probability of the condensate storage tank or heat deaerator pipeline system because of too much impurity accumulation and take place and reduce the erosion of impurity to condensate storage tank and heat deaerator, improve the use safety of condensate storage tank and heat deaerator.

Description

Technical Field

[0001] This utility model relates to the field of industrial boiler steam recovery equipment, specifically a steam condensate storage and conveying machine for industrial boilers. Background Technology

[0002] Steam generated by industrial boilers is heated in processes to produce steam condensate, which is mixed with low-pressure saturated steam. Recovering steam condensate has considerable economic benefits, including energy conservation and emission reduction. Currently, steam condensate is recovered through industrial boiler steam condensate storage and transportation devices.

[0003] Existing industrial boiler steam condensate storage and conveying systems mostly consist of a steam-water separator, a thermal deaerator, and a condensate storage tank. The steam condensate from the industrial boiler is introduced into the steam-water separator, which then directs the condensate into the condensate storage tank, while the steam is introduced into the thermal deaerator. When the steam condensate storage and conveying system is used for extended periods, the large amount of impurities in the steam condensate causes frequent blockages in the condensate storage tank and the thermal deaerator piping system due to excessive impurity accumulation. This increases the risk of bursting during use, affecting the safety of the condensate storage tank and the thermal deaerator. Furthermore, the accumulated impurities corrode the condensate storage tank and the thermal deaerator, affecting their service life and ultimately hindering the normal operation of steam condensate recovery. Utility Model Content

[0004] The purpose of this utility model is to provide a steam condensate storage and conveying machine for industrial boilers, so as to solve the problem mentioned in the background art that the existing industrial boiler steam condensate storage and conveying devices contain a large number of impurities, and the condensate storage tank and thermal deaerator pipeline system are corroded or frequently blocked due to excessive accumulation of impurities, which easily leads to the risk of bursting during use.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a steam condensate storage and conveying machine for industrial boilers, comprising a condensate storage tank, a steam-water separator, a thermal deaerator, and a steam condensate inlet pipe connected to the right side of the steam-water separator. The condensate storage tank and the steam-water separator are connected through a first conveying pipe. A first water purification mechanism is installed on the first conveying pipe, and the first water purification mechanism is used to purify and remove impurities from the steam condensate introduced into the condensate storage tank. A water pump is connected to the bottom of the condensate storage tank through a second condensate conduit, and the outlet of the water pump is connected to the thermal deaerator through a first condensate conduit. A second conveying pipe is provided between the steam-water separator and the thermal deaerator. A second water purification mechanism is installed on the second conveying pipe, and the second water purification mechanism is used to purify and remove impurities from the steam condensate entering the thermal deaerator. Both the second and first water purification mechanisms include a water purification section, which includes a water filter box with an internal filtration chamber and a filter element installed inside the water filter box. The water filter box has a left placement oblique hole on the left side and a right placement oblique hole on the right side. The filter element is provided in at least one set. Each set of filter elements includes an upper filter screen that is inclined from the upper left to the lower right into the filtration chamber and a lower filter screen that is inclined from the upper right to the lower left into the filtration chamber. The upper filter screen is located above the lower filter screen. The upper left position of the upper filter screen extends out of the left placement oblique hole, and the upper right position of the lower filter screen extends out of the right placement oblique hole.

[0006] Furthermore, the filter element also includes a water filter layer located in the filter chamber and disposed between the upper filter screen and the lower filter screen. This water filter layer is made of activated carbon, magnetite, stainless steel filter element, metal powder sintered material, or ceramic powder sintered material.

[0007] Furthermore, the top of the water filter box has an outlet communicating with the filtration chamber, and the bottom of the water filter box has an inlet communicating with the filtration chamber. The water filter box is positioned flush with the extension direction of the first or second conveying pipe, and the outlet and inlet of the water filter box are connected to the corresponding first or second conveying pipe.

[0008] Furthermore, the mesh diameter of the upper filter screen exceeds that of the lower filter screen, and the overall length of the upper or lower filter screen exceeds the horizontal length of the water filtration tank. The upper left position of the upper filter screen is located on the left side of the water filtration tank, and the upper right position of the lower filter screen is located on the right side of the water filtration tank.

[0009] Furthermore, both the second and first water purification mechanisms include a protective cover for protecting the water purification unit. The protective cover covers the water purification unit and consists of a left cover and a right cover. The inner surfaces of the left and right covers are provided with recesses, which form a receiving chamber for the water filter tank. The top and bottom of the left cover and the top and bottom of the right cover are provided with lugs, and fasteners can be installed at the lugs to tightly connect the left and right covers together.

[0010] Furthermore, the bottom of the condensate storage tank is equipped with a drain pipe for discharging impurities.

[0011] The beneficial effects of this utility model are: This invention utilizes inclined upper and lower filters to purify and remove impurities from steam condensate entering the thermal deaerator and condensate storage tank. The upper and lower filters extend the filtration path and residence time of the steam condensate, retaining a large amount of impurities on the filters, thus significantly improving the filtration effect and reducing the impurity content. This ensures the quality of steam condensate recovery, reducing the likelihood of blockage in the condensate storage tank or thermal deaerator piping system due to excessive impurity accumulation. It also reduces the corrosion caused by impurities to the condensate storage tank and thermal deaerator, extending their service life and improving their safety. Ultimately, this makes the industrial boiler steam condensate storage and conveyor safer and longer-lasting. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the steam condensate storage and conveying machine for industrial boilers according to this utility model; Figure 2 This is a structural cross-sectional view of the first water purification mechanism of this utility model; Figure 3 This is a front view of the structure of the first water purification mechanism of this utility model; Figure 4 This is a three-dimensional structural view of the protective cover of this utility model; Figure 5 This is a cross-sectional view of the water purification part of this utility model; Figure 6 This is a cross-sectional view of the water filter box of this utility model.

[0013] In the diagram: 1. Condensate storage tank; 2. First conveying pipe; 3. First water purification mechanism; 31. Protective cover; 311. Left cover; 312. Right cover; 313. Lug; 314. Fastener; 315. Cavity; 32. Water purification section; 321. Filter box; 3211. Left inclined hole; 3212. Right inclined hole; 322. Filter chamber; 323. Upper filter screen; 324. Lower filter screen; 325. Filter layer; 326. Outlet; 327. Inlet; 4. Steam-water separator; 5. Steam condensate inlet pipe; 6. Second conveying pipe; 7. Second water purification mechanism; 8. Thermal deaerator; 9. No. 1 condensate conduit; 10. No. 2 condensate conduit; 11. Sewage pipe; 12. Water pump. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-6 This invention provides a technical solution for an industrial boiler steam condensate storage and conveying machine, comprising a condensate storage tank 1, a steam-water separator 4, a thermal deaerator 8, and a steam condensate inlet pipe 5 connected to the right side of the steam-water separator 4. The condensate storage tank 1 and the steam-water separator 4 are connected by a first conveying pipe 2, on which a first water purification mechanism 3 is installed. The first water purification mechanism 3 is used to purify and remove impurities from the steam condensate introduced into the condensate storage tank 1. A water pump 12 is connected to the bottom of the condensate storage tank 1 through a second condensate conduit 10. The outlet of the water pump 12 is connected to... The condensate pipe 9 is connected to the thermal deaerator 8. The water pump 12 is, but is not limited to, an anti-cavitation high-temperature hot water pump. The top of the steam-water separator 4 is equipped with a safety valve. When a large amount of steam enters the steam-water separator 4 and causes high steam pressure, the safety valve automatically opens to release steam and achieve pressure relief, thereby improving the safety factor of the steam-water separator 4 during use. The bottom of the condensate storage tank 1 is equipped with a drain pipe 11 for discharging impurities. A second conveying pipe 6 is provided between the steam-water separator 4 and the thermal deaerator 8. A second water purification mechanism 7 is installed on the second conveying pipe 6, and the second water purification mechanism 7 is used to purify the steam entering the thermal deaerator 8. The condensate is purified and impurities removed. Both the second water purification unit 7 and the first water purification unit 3 include a water purification section 32. This section 32 includes a filter box 321 with an internal filter chamber 322 and a filter element installed inside the filter box 321. The filter box 321 has a left-side inclined hole 3211 and a right-side inclined hole 3212. The top of the filter box 321 has an outlet 326 communicating with the filter chamber 322, and the bottom of the filter box 321 has an inlet 327 communicating with the filter chamber 322. The filter box 321 is positioned relative to the first water purification unit. The pipe bodies of the feed pipe 2 or the second feed pipe 6 extend in the same direction. The outlet 326 and inlet 327 of the filter tank 321 are connected to the corresponding first feed pipe 2 or second feed pipe 6. At least one set of filter elements is provided. Each set of filter elements includes an upper filter screen 323 that is inclined from the upper left to the lower right into the filter chamber 322, and a lower filter screen 324 that is inclined from the upper right to the lower left into the filter chamber 322. The upper filter screen 323 is located above the lower filter screen 324. The upper left position of the upper filter screen 323 extends out of the left inclined hole 3211, and the upper right position of the lower filter screen 324 extends out of the right inclined hole 3212.

[0016] It should be noted that the filter element mentioned also includes a water filter layer 325 located in the filter chamber 322 and disposed between the upper filter screen 323 and the lower filter screen 324. The water filter layer 325 is made of, but is not limited to, an activated carbon layer, a magnetite layer, a stainless steel filter element layer, a metal powder sintered material layer, or a ceramic powder sintered material layer. The mesh diameter of the upper filter screen 323 exceeds the mesh diameter of the lower filter screen 324. The overall length of the upper filter screen 323 or the lower filter screen 324 exceeds the horizontal length of the water tank 321. The upper left position of the upper filter screen 323 is located on the left side of the water tank 321, and the upper right position of the lower filter screen 324 is located on the right side of the water tank 321. The mesh thickness of the upper filter screen 323 or the lower filter screen 324 is equal, and the mesh thickness of the upper filter screen 323 does not exceed the vertical height of the cavity where the left inclined hole 3211 or the right inclined hole 3212 is installed.

[0017] In this embodiment, both the second water purification mechanism 7 and the first water purification mechanism 3 further include a protective cover 31 for protecting the water purification part 32. The protective cover 31 covers the water purification part 32 and is composed of a left cover 311 and a right cover 312. The inner opposite surfaces of the left cover 311 and the right cover 312 are provided with recesses 315. The recesses 315 of the left cover 311 and the right cover 312 form a receiving chamber for the water filter box 321 to be placed. The top and bottom ends of the left cover 311 and the top and bottom ends of the right cover 312 are provided with lugs 313. Fasteners 314 can be installed at the lugs 313 to tightly connect the left cover 311 and the right cover 312 together. The fasteners 314 are, but are not limited to, bolts or screws. The side view of the lugs 313 is rectangular.

[0018] This industrial boiler uses a steam condensate storage and conveyor. During operation, the steam condensate from the industrial boiler enters the steam-water separator 4 through the steam condensate inlet pipe 5 for steam-water separation. The steam generated by density separation is conveyed upwards through the second conveying pipe 6 and purified by the second water purification mechanism 7. The purified steam then enters the thermal deaerator 8 for heating before use. The second water purification mechanism 7 isolates large particulate solid impurities / suspended matter in the steam onto the upper filter screen 323 and lower filter screen 324. The filtered steam then enters the thermal deaerator 8, thereby reducing wear and corrosion caused by impurities / suspended matter or minimizing blockages in the deaerator piping system, allowing the thermal deaerator 8 to operate more sustainably and safely. The condensate from the steam-water separation is then... The first conveying pipe 2 transports and purifies the condensate through the first water purification mechanism 3. The purified condensate is then transported by the first conveying pipe 2 to the condensate storage tank 1. After the steam condensate is purified by the first water purification mechanism 3, the solid impurities / suspended matter mixed in the steam condensate are filtered and isolated by the upper filter screen 323 and the lower filter screen 324. The filtered condensate continues to enter the condensate storage tank 1 through the first conveying pipe 2. Since the steam condensate is purified by the first water purification mechanism 3 before entering the condensate storage tank 1, the impurity content in the steam condensate is low. This reduces the probability of clogging in the condensate storage tank 1 and reduces the corrosion caused by impurities to the condensate storage tank 1, thereby extending the service life of the condensate storage tank 1 and improving the safety of the use of the condensate storage tank 1 and the thermal deaerator 8.

[0019] It should be noted that the operating principle of the first water purification mechanism 3 or the second water purification mechanism 7 is as follows: First, the filter elements are installed in the water filter box 321, that is, the lower filter screen 324 is installed obliquely in the water filter box 321, and the filter layer 325 is placed on the lower filter screen 324 through the opening 326. Then, the upper filter screen 323 is installed obliquely in the water filter box 321. At least one set of filter elements is provided. The installation of the filter elements all starts from the bottom position of the water filter box 321, and then several sets of filter elements are installed in this way to filter steam condensate. Then, the water filter box 321 in the water purification section 32 is connected in series to the first conveying pipe 2 or the second conveying pipe 6. At this time, the water filter box 321 is connected along the first conveying pipe 2 or the second conveying pipe 6. The conveying pipe 6 is axially arranged, with the opening 326, inlet 327, and filter chamber 322 all communicating with the corresponding conveying pipe cavity. After the water purification unit 32 is installed, the protective cover 31 is installed outside the water purification unit 32 to protect it. The protective cover 31 is installed by first pressing the side with the cavity 315 of the left cover 311 or the right cover 312 tightly against one side of the outer wall of the filter tank 321, and then pressing the side with the cavity 315 of the right cover 312 or the left cover 311 tightly against the other side of the outer wall of the filter tank 321. Then, the lugs 313 on the left cover 311 and the right cover 312 are joined together by fasteners 314, thereby connecting the left cover 311 and the right cover 312. 2. The filter tank 321 is securely integrated to protect it. The vertical length of either the left cover 311 or the right cover 312 exceeds the vertical length of the filter tank 321. When the filter tank 321 needs to be disassembled and maintained after the water purification unit 32 has been used for a period of time, simply loosen the fasteners 314 to release the left cover 311 and the right cover 312 and remove them to expose the filter tank 321. Separate the delivery pipe from the filter tank 321, then pull the upper filter screen 323 away from the upper left of the filter tank 321, and pull the lower filter screen 324 away from the upper right of the filter tank 321. The filter layer 325 can then detach from the filter tank 321 through the outlet 326. The inclined upper filter screen 323 and lower filter screen 324 can extend the... The filtration path and retention time of the steam condensate are designed to retain a large amount of impurities on the filter screen, greatly improving the filtration effect of the steam condensate, reducing the impurity content in the steam condensate, and ensuring the quality of steam condensate recovery. This reduces the probability of blockage in the pipeline system of the condensate storage tank 1 or the thermal deaerator 8, and reduces the corrosion caused by impurities to the condensate storage tank 1 and the thermal deaerator 8, thereby extending the service life of the condensate storage tank 1 and the thermal deaerator 8 and improving the safety of their use. In this embodiment, preferably, the filter tank 321 can adopt, but is not limited to, a cylindrical or rectangular structure.

[0020] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0021] The above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be understood that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present utility model, and these all fall within the protection scope of the present utility model. In the present utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "joining", "fixing", etc. should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two components or the interaction between two components. Among them, there are various ways of detachable installation, such as by plugging and snapping, or by bolt connection, etc.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A steam condensate storage and conveying machine for industrial boilers, comprising a condensate storage tank, a steam-water separator, a thermal deaerator, and a steam condensate inlet pipe connected to the right side of the steam-water separator, characterized in that: The condensate storage tank and the steam-water separator are connected by a first conveying pipe. A first water purification mechanism is installed on the first conveying pipe. The first water purification mechanism is used to purify and remove impurities from the steam condensate introduced into the condensate storage tank. A water pump is connected to the bottom of the condensate storage tank through a second condensate conduit. The outlet of the water pump is connected to the thermal deaerator through a first condensate conduit. A second conveying pipe is provided between the steam-water separator and the thermal deaerator. A second water purification mechanism is installed on the second conveying pipe, and the second water purification mechanism is used to purify and remove impurities from the steam condensate entering the thermal deaerator. Both the second and first water purification mechanisms include a water purification section, which includes a water filter box with an internal filtration chamber and a filter element installed inside the water filter box. The water filter box has a left placement oblique hole on the left side and a right placement oblique hole on the right side. The filter element is provided in at least one set. Each set of filter elements includes an upper filter screen that is inclined from the upper left to the lower right into the filtration chamber and a lower filter screen that is inclined from the upper right to the lower left into the filtration chamber. The upper filter screen is located above the lower filter screen. The upper left position of the upper filter screen extends out of the left placement oblique hole, and the upper right position of the lower filter screen extends out of the right placement oblique hole.

2. The industrial boiler steam condensate storage and conveying machine according to claim 1, characterized in that: The filter element also includes a water filter layer located in the filter chamber and disposed between the upper and lower filter screens. This water filter layer is made of activated carbon, magnetite, stainless steel filter element, metal powder sintered material, or ceramic powder sintered material.

3. The industrial boiler steam condensate storage and conveying machine according to claim 1, characterized in that: The top of the water filter box has an outlet that communicates with the filtration chamber, and the bottom of the water filter box has an inlet that communicates with the filtration chamber. The water filter box is positioned flush with the extension direction of the first or second conveying pipe, and both the outlet and inlet of the water filter box are connected to the corresponding first or second conveying pipe.

4. The industrial boiler steam condensate storage and conveying machine according to claim 1, characterized in that: The mesh diameter of the upper filter screen exceeds that of the lower filter screen, and the overall length of the upper or lower filter screen exceeds the horizontal length of the water filtration tank. The upper left position of the upper filter screen is located on the left side of the water filtration tank, and the upper right position of the lower filter screen is located on the right side of the water filtration tank.

5. The industrial boiler steam condensate storage and conveying machine according to claim 1, characterized in that: Both the second and first water purification mechanisms also include a protective cover for protecting the water purification unit. The protective cover covers the water purification unit and is composed of a left cover and a right cover. The inner opposite surfaces of the left and right covers are provided with recesses, which form a receiving chamber for the water filter tank. The top and bottom of the left cover and the top and bottom of the right cover are provided with lugs, and fasteners can be installed at the lugs to tightly connect the left and right covers together.

6. The industrial boiler steam condensate storage and conveying machine according to claim 1, characterized in that: The bottom of the condensate storage tank is equipped with a drain pipe for discharging impurities.

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