Water spraying desuperheater

Abstract

The utility model discloses a water spraying desuperheater which comprises a fixing pipe, a flange is assembled on the top of the fixing pipe, a coarse filter screen is fixedly installed on the lower surface of the flange, a piston is installed in the coarse filter screen in a sliding mode, an installation groove formed in the upper surface of an inner cavity of the fixing pipe is fixedly installed below the coarse filter screen, and a spring is installed in the installation groove. The top end of the spring is connected with the piston, and the piston slides in the mounting groove. A cleaning plate is slidably mounted on the inner surface of the coarse filter screen, a plurality of connecting rods are fixedly mounted on the lower surface of the cleaning plate, and the bottom ends of the connecting rods are connected with the upper surface of the piston; and a collecting assembly is arranged in a gap between the coarse filter screen and the mounting groove. Through the arrangement of the coarse filter screen, the spring, the piston, the cleaning plate, the connecting rod, the collecting assembly and the like, attemperation water can be filtered, meanwhile, when the filter screen is blocked, the filter screen can be cleaned, dirt accumulated on the surface of the filter screen can be removed, the dirt can be collected, the filtering effect is greatly improved, and the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to water spray desuperheater technical field especially relates to a water spray desuperheater. BACKGROUND

[0002] Water spray desuperheater, it is a kind of cooling water directly sprays into the desuperheating device in the superheated steam flow of superheated steam pipe.Cooling water in the process of mixing into superheated steam, just from superheated steam absorption heat as steam, superheated steam then due to exothermic and temperature from the high temperature point drops to a certain low temperature point, realize the purpose of desuperheating to superheated steam, if cooling water as very small water droplets or fog and spray into superheated steam pipe, then cooling water and superheated steam by steam flow and more evenly mixed.

[0003] In the prior art, the utility model discloses a kind of water spray desuperheaters of Chinese utility model patent with patent No.CN219933952U, including machine table, the upper surface of the machine table is fixedly connected with boiler, the right wall of the boiler is penetrated and fixedly connected with cooling pipe, the right wall of the cooling pipe is penetrated and fixedly connected with water inlet pipe, the left end of the water inlet pipe is fixedly connected with flange, the left surface of the flange is fixedly connected with water suction pipe, the middle section of the water suction pipe is provided with water pump, the tail end of the water suction pipe is fixedly connected with water storage tank, the rear surface of the water inlet pipe is fixedly connected with spray head.The utility model extracts cooling water in water storage tank by water pump, sprays in cooling pipe by spray head to steam cooling, cooling water is pushed by steam, when flowing through water storage tank, is blocked and enters water storage tank by water outlet pipe, recycling of cooling water can be achieved by such device, reduce the waste of resources, reduce the cost of work.

[0004] In the prior art, cooling water in water storage tank is extracted by water pump, sprays in cooling pipe by spray head to steam cooling, cooling water is pushed by steam, when flowing through water storage tank, is blocked and enters water storage tank by water outlet pipe, recycling of cooling water can be achieved, but there is still some deficiency when using as a whole:

[0005] Firstly, water quality requirement of water spray desuperheater is higher, do not filter desuperheating water, water contains impurities and particulate matter, these impurities are easy to accumulate in water spray desuperheater, form scale or block atomizing nozzle, greatly reduce the desuperheating effect;

[0006] Secondly, if impurities and particulate matter after filtration are not cleaned, a large amount of impurities and dirt will accumulate, causing filter screen to be blocked, and the blocked filter screen will hinder the normal flow of water, so that the water spray desuperheater cannot obtain sufficient water for desuperheating, thereby affecting its normal operation;

[0007] Finally, the high-pressure desuperheating water cools the pipeline steam in the desuperheater through the water injection pipe on the desuperheater, and the nozzle of the water injection pipe produces thermal alternating stress when spraying water, the gap between the bottom of the water injection pipe and the cylinder wall is large, the water injection pipe has large vibration amplitude when working, vibration force is generated, and finally the nozzle is broken under the action of thermal alternating stress and vibration. The utility model discloses

[0008] The utility model discloses to solve the technical problem that desuperheating water does not filter and filter screen cleaning can lead to desuperheating effect, serious time blockage atomizing nozzle, can not carry out desuperheating, and the water injection pipe has large vibration amplitude when working, vibration force is generated, and finally the nozzle is broken under the action of thermal alternating stress and vibration, provide a water injection desuperheater.

[0009] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: a water injection desuperheater, including fixed pipe, the top of fixed pipe is equipped with the flange, the lower surface of flange is fixedly installed with the coarse filter screen, is used for filtering desuperheating water, the inside of coarse filter screen is slidably installed with the piston, the lower of coarse filter screen is fixedly installed with the mounting groove on the inner chamber of fixed pipe, the inside of mounting groove is installed with the spring, the top of spring is mutually connected with piston, and the piston slides in the inside of mounting groove,

[0010] The inside of coarse filter screen is slidably installed with the cleaning plate, is used for scraping the impurity of coarse filter screen inner surface, the lower surface of cleaning plate is fixedly installed with a plurality of connecting rods, and the bottom of connecting rod is connected with the upper surface of piston.

[0011] The clearance of coarse filter screen and mounting groove is provided with collection assembly, and the filter impurities of desuperheating water are collected.

[0012] The impurities in water are coarsely filtered through the coarse filter screen, and when used for a long time, the impurities will adhere to the inner surface of the coarse filter screen, causing the filter hole to be blocked and reducing the water delivery efficiency. At this time, the piston is subjected to increased water flow pressure, causing the piston to press the spring downward, so that the piston pulls the cleaning plate downward through the connecting rod, scraping the impurities on the inner surface of the coarse filter screen, greatly improving the filtering efficiency and the service life of the coarse filter screen. After the impurities are scraped off, the filtering effect is also improved.

[0013] In the above-mentioned water injection desuperheater, the collection assembly includes a collection bin fixedly installed outside the mounting groove, used for collecting the impurities of desuperheating water, the collection bin seals the clearance between the coarse filter screen and the mounting groove, the bottom of the collection bin is provided with a hollow structure, used for the filtered desuperheating water to pass through, and the side of the collection bin close to the clearance is provided with an inlet, used for the filtered impurities to pass through.

[0014] The collected impurities can be collected through the collection bin, so that the filtered desuperheating water can pass through in time, greatly improving the filtering effect.

[0015] In the water spray desuperheater, the lower surface of the flange is threadedly mounted with a fine filter screen for secondary filtering of the desuperheating water.

[0016] Through the use of the fine filter screen, the desuperheating water can be subjected to secondary filtering, further improving the filtering effect.

[0017] In the water spray desuperheater, the lower surface of the flange and outside the coarse filter screen is provided with a connecting groove, a connector is threadedly mounted in the connecting groove, and the fine filter screen is fixedly mounted on the lower surface of the connector.

[0018] Through the thread mounting of the flange and the fine filter screen, the flange and the fine filter screen can be disassembled, the filtered impurities can be easily removed, and the work efficiency is greatly improved.

[0019] In the water spray desuperheater, the lower surface of the fixed pipe is fixedly mounted with a pipe body, and the upper surface of the flange is fixedly assembled with a water inlet pipe.

[0020] In the water spray desuperheater, the upper surface of the pipe body is fixedly mounted with a booster pump in communication with the fixed pipe, the inside of the pipe body is fixedly mounted with a water collecting bin in communication with the booster pump, and the inner surface of the water collecting bin is fixedly mounted with a plurality of atomizing nozzles.

[0021] Through the annular arrangement of the atomizing nozzles, the steam can pass through the middle during use, so that the steam desuperheating is uniform, and the desuperheating effect is greatly improved.

[0022] In the water spray desuperheater, one end of the pipe body is a gas inlet, the other end of the pipe body is a gas outlet, and a throttle orifice plate is arranged at the end of the pipe body close to the gas inlet for reducing fluid pressure.

[0023] Through the arrangement of the throttle orifice plate, when the high-temperature gas passes through the orifice of the throttle orifice plate, the flow will become thin or shrink, the flow rate will increase, and the pressure will greatly decrease, the pressure reduction reduces the impact on the water collecting bin and the atomizing nozzle, and the service life of the water collecting bin and the atomizing nozzle is greatly improved.

[0024] In the water spray desuperheater, the side of the atomizing nozzle close to the throttle orifice plate is fixedly mounted with a horn-shaped baffle for further reducing fluid pressure.

[0025] Through the horn-shaped arrangement of the baffle, the steam flow is blocked when passing through the baffle, further reducing the fluid pressure and improving the pressure reduction effect.

[0026] In the water spray desuperheater, a thermometer is fixedly mounted on the upper surface of the pipe body close to the gas outlet.

[0027] The temperature of the outlet steam is monitored in real time through a thermometer, so that the steam temperature is always controlled within a set range, and safety is improved.

[0028] Compared with the prior art, the water spray desuperheater has the following beneficial effects:

[0029] 1. The utility model discloses a filter screen, spring, piston, cleaning plate and connecting rod can filter the desuperheating water, prevent the desuperheating water from blocking the atomizing nozzle, influence the desuperheating effect, and when the filter screen is blocked, it can be cleaned, the accumulated dirt on the surface is removed, the filtered water can pass normally, the filtering effect is greatly improved, and the working efficiency is improved.

[0030] 2. The utility model discloses a collecting bin, a slag inlet and a fine filter screen can collect the impurities and particles after filtering, filter more desuperheating water, greatly improve the filtering effect, and further filter the desuperheating water, further improve the filtering effect of the desuperheating water, thereby improving the desuperheating effect.

[0031] 3. The utility model discloses a water collecting bin, atomizing nozzle, throttle orifice plate and baffle can reduce the pressure of steam, prevent high-pressure airflow from washing the atomizing nozzle, greatly improve the service life of the equipment, and use the annular water spray desuperheater, make the steam pass through the water mist, make the steam desuperheat evenly, and greatly improve the desuperheating effect. DRAWINGS

[0032] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;

[0033] Figure 2 It is a top view structure schematic diagram of the utility model;

[0034] Figure 3 It is Figure 2 It is a sectional view structure schematic diagram of A-A of the utility model;

[0035] Figure 4 It is a flange and fine filter screen connection structure schematic diagram;

[0036] Figure 5 It is Figure 3 It is an enlarged structure schematic diagram of A of the utility model;

[0037] In the figure: pipe body 10; gas inlet 11; gas outlet 12; thermometer 13; fixed pipe 14; flange 15; water inlet pipe 16; connecting groove 17; fine filter screen 18; connecting head 19; coarse filter screen 20; mounting groove 21; spring 22; piston 23; cleaning plate 24; connecting rod 25; collection bin 26; residue inlet 27; mounting column 28; booster pump 29; conduit 30; water collection bin 31; atomizing nozzle 32; orifice plate 33; baffle 34. DETAILED DESCRIPTION

[0038] In order to make the person skilled in the art better understand the utility model scheme, the technical scheme in the utility model embodiment will be clearly and completely described below in combination with the drawings in the utility model embodiment.

[0039] Reference Figure 1 A water spray desuperheater, comprising a pipe body 10, one end of the pipe body 10 is provided with a gas inlet 11, the other end is provided with a gas outlet 12, and the upper surface of the end of the pipe body 10 close to the gas outlet 12 is fixedly installed with a thermometer 13.

[0040] Specifically, high-temperature and high-pressure steam enters the pipe body 10 from the gas inlet 11, and flows out from the gas outlet 12 after being desuperheated, and the thermometer 13 is used for monitoring the temperature change of the outlet steam in real time, so that the steam temperature is always controlled within the set range, and the safety is improved.

[0041] Further, referring to Figure 1 , the upper surface of the end of the pipe body 10 close to the gas inlet 11 is fixedly installed with a fixed pipe 14, the top end of the fixed pipe 14 is assembled with a flange 15, the upper surface of the flange 15 is assembled with a water inlet pipe 16, and the water inlet pipe 16 is connected with a water supply device, and the water supply device is prior art, which will not be described in detail in the present scheme.

[0042] Further, referring to Figure 1 , Figure 2 , Figure 3 and Figure 5 , the lower surface of the flange 15 is fixedly installed with a coarse filter screen 20 for coarsely filtering the desuperheating water, the lower surface of the coarse filter screen 20 is fixedly installed with a mounting groove 21 on the upper surface of the inner cavity of the fixed pipe 14, the top of the mounting groove 21 is provided with an opening, and the inner cavity of the mounting groove 21 is fixedly installed with a spring 22, the top end of the spring 22 is fixedly installed with a piston 23, the piston 23 is slidably arranged in the interior of the coarse filter screen 20 and the mounting groove 21, and is in sealing cooperation, the upper surface of the piston 23 is fixedly installed with a plurality of connecting rods 25, the top end of the connecting rod 25 is fixedly installed with a cleaning plate 24 sliding on the inner surface of the coarse filter screen 20, and is used for scraping off the impurities on the inner surface of the coarse filter screen 20.

[0043] Specifically, when the water is delivered by temperature reduction, the water from the water inlet pipe 16 enters the coarse filter screen 20, and the coarse filter screen 20 coarsely filters the impurities in the water. When used for a long time, the impurities will adhere to the inner surface of the coarse filter screen 20, causing the filter holes to be blocked and reducing the water delivery efficiency. At this time, the piston 23 is subjected to an increased water flow pressure, so that the piston 23 is pressed to move downward by the spring 22, so that the piston 23 pulls the cleaning plate 24 downward through the connecting rod 25, and the impurities on the inner surface of the coarse filter screen 20 are scraped off, greatly improving the filtering efficiency and the service life of the coarse filter screen 20. After the impurities are scraped off, the filtering effect is improved, and the piston 23 is subjected to a reduced water flow pressure. At this time, the spring 22 drives the piston 23 to reset.

[0044] Further, referring to Figure 4 and Figure 5 , the lower surface of the flange 15 is provided with a connecting groove 17, and the connecting groove 17 is internally screwed with a connecting head 19. The bottom of the connecting head 19 is fixedly installed with a fine filter screen 18.

[0045] Specifically, the water filtered through the coarse filter screen 20 is further filtered through the connecting head 19, further improving the filtering effect. The connecting head 19 is screwed with the flange 15, so that the connecting head 19 can be easily taken out after work, facilitating the centralized treatment of impurities and greatly improving the work efficiency.

[0046] Further, referring to Figure 5 , the outer surface of the mounting groove 21 is fixedly installed with a collection bin 26 for collecting the waste scraped off from the inner surface of the coarse filter screen 20. The collection bin 26 seals the gap between the coarse filter screen 20 and the mounting groove 21. One side of the collection bin 26 is provided with a residue inlet 27 for the impurities to enter. The collection bin 26 is hollow, and the bottom is detachably arranged for water to pass through.

[0047] Specifically, the impurities pressed on the upper surface of the piston 23 and the impurities scraped off from the inner surface of the coarse filter screen 20 are communicated with the gap between the piston 23 and the coarse filter screen 20 through the residue inlet 27 while the piston 23 moves downward. All the impurities enter the collection bin 26 through the residue inlet 27, so that the impurities are collected to prevent excessive impurities from accumulating and reducing the filtering effect. The impurities are easily taken out, and the work efficiency is improved.

[0048] Further, referring to Figures 1-3 , the upper surface of the pipe body 10 is fixedly installed with a mounting column 28, and the top of the mounting column 28 is fixedly installed with a booster pump 29. The booster pump 29 is a prior art, which is not described in detail in the present scheme. The booster pump 29 is used to increase the water inlet pressure and improve the temperature reduction efficiency. The water inlet end of the booster pump 29 is communicated with the fixed pipe 14.

[0049] Further, the middle inner surface of the pipe body 10 is fixedly installed with an annular water collecting chamber 31, the inner surface of the water collecting chamber 31 is provided with a plurality of atomizing nozzles 32, the atomizing nozzles 32 are prior art, and will not be described in detail in the present scheme, the top of the water collecting chamber 31 is communicated with a conduit 30, and the conduit 30 is communicated with the water outlet of the booster pump 29.

[0050] Specifically, the booster pump 29 sends the filtered water into the water collecting chamber 31 through the conduit 30 after boosting, and finally sprays the desuperheating water out through the atomizing nozzles 32, and the annular water spraying can uniformly spray the desuperheating water in the high-temperature gas, greatly improving the desuperheating effect.

[0051] Further, referring to Figure 3 , the inner surface of the pipe body 10 and close to one end of the gas inlet 11 is fixedly installed with a throttle orifice plate 33, when the high-temperature gas passes through the orifice of the throttle orifice plate 33, the flow will be thin or shrink, the flow rate increases while the pressure greatly reduces, and the pressure reduction reduces the impact on the water collecting chamber 31 and the atomizing nozzles 32, greatly improving the service life of the water collecting chamber 31 and the atomizing nozzles 32.

[0052] Further, referring to Figure 3 , the side of the water collecting chamber 31 close to the throttle orifice plate 33 is provided with a baffle 34, the baffle 34 is provided in a horn shape, so that the steam flow is blocked when passing through, further reducing the fluid pressure and improving the pressure reduction effect

[0053] As some terms are used in the description and claims to refer to certain components. Those skilled in the art should understand that hardware manufacturers may use different names to refer to the same component. The description and claims of the present application do not distinguish components by name, but by the functional difference between components. As mentioned throughout the description and claims, "including" is an open term, which should be interpreted as "including but not limited to". "Approximately" means within an acceptable error range, and those skilled in the art can solve the technical problem within a certain error range, and basically achieve the technical effect.

[0054] It should be noted that the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the goods or system including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such goods or system. Without more limitation, the element defined by the sentence "including a" does not exclude the presence of another identical element in the goods or system including the element.

[0055] The foregoing description illustrates and describes several preferred embodiments of the present application. However, it is to be understood that the application is not limited to the precise forms described, and that changes can be made therein without departing from the scope of the present application. Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. Therefore, the specification and examples are to be considered exemplary only, with a true scope and spirit of the application being indicated by the following claims.

Claims

1. A water spray desuperheater comprising a stationary pipe (14), characterized in that The top of the fixed pipe (14) is equipped with a flange (15), the lower surface of the flange (15) is fixedly installed with a coarse filter screen (20) for filtering the desuperheating water, the inside of the coarse filter screen (20) is slidably installed with a piston (23), the lower surface of the coarse filter screen (20) is fixedly installed with a mounting groove (21) on the inner cavity of the fixed pipe (14), the inside of the mounting groove (21) is installed with a spring (22), the top end of the spring (22) is connected with the piston (23), and the piston (23) slides in the inside of the mounting groove (21); The inner surface of the coarse filter screen (20) is slidably installed with a cleaning plate (24) for scraping off impurities on the inner surface of the coarse filter screen (20), the lower surface of the cleaning plate (24) is fixedly installed with a plurality of connecting rods (25), and the bottom end of the connecting rod (25) is connected with the upper surface of the piston (23); The gap between the coarse filter screen (20) and the mounting groove (21) is provided with a collection assembly for collecting the filtering impurities of the desuperheating water.

2. A water spray desuperheater according to claim 1, wherein The collection assembly comprises a collection bin (26) fixedly installed outside the mounting groove (21) for collecting the desuperheating water impurities, the collection bin (26) seals the gap between the coarse filter screen (20) and the mounting groove (21), the bottom of the collection bin (26) is provided with a hollow structure for the filtered desuperheating water to pass through, and one side of the collection bin (26) close to the gap is provided with a residue inlet (27) for the filtered impurities to pass through.

3. A water spray desuperheater according to claim 1 wherein, The lower surface of the flange (15) is threadedly installed with a fine filter screen (18) for secondary filtering the desuperheating water.

4. A water spray desuperheater according to claim 3, wherein The lower surface of the flange (15) and outside the coarse filter screen (20) is provided with a connecting groove (17), the inside of the connecting groove (17) is threadedly installed with a connecting head (19), and the fine filter screen (18) is fixedly installed on the lower surface of the connecting head (19).

5. A water spray desuperheater according to claim 1 wherein, The lower surface of the fixed pipe (14) is fixedly installed with a pipe body (10), and the upper surface of the flange (15) is fixedly equipped with a water inlet pipe (16).

6. A water spray desuperheater according to claim 5 wherein, The upper surface of the pipe body (10) is fixedly installed with a booster pump (29) in communication with the fixed pipe (14), the inside of the pipe body (10) is fixedly installed with a water collecting bin (31) in communication with the booster pump (29), and the inner surface of the water collecting bin (31) is fixedly installed with a plurality of atomizing nozzles (32).

7. A water spray desuperheater according to claim 6 wherein, One end of the pipe body (10) is a gas inlet (11), the other end of the pipe body (10) is a gas outlet (12), and the inside of the pipe body (10) is provided with a throttle orifice plate (33) close to one end of the gas inlet (11) for reducing fluid pressure.

8. A water spray desuperheater according to claim 7, wherein, The side of the atomizing nozzle (32) close to the throttle orifice plate (33) is fixedly installed with a horn-shaped baffle (34) for further reducing fluid pressure.

9. A water spray desuperheater according to claim 7 wherein, The upper surface of the pipe body (10) is fixedly installed with a thermometer (13) close to the gas outlet (12).

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