Anti-corrosion steam pressure reducing valve

Abstract

The utility model discloses an anti-corrosion steam pressure reducing valve which comprises a shell, a filtering structure is arranged in the inlet end of the shell, a flow guide block is arranged in the shell and located between the filtering structure and a valve element installation area, and flow dividing structures are arranged on the two sides of the inlet end of the shell and located between the flow guide block and a valve element. And a cooling structure for cooling the steam is connected between the shunting structure and the outer wall of the shell. According to the anti-corrosion steam pressure reducing valve, the stream of air flow rotates in the flowing process, the divided stream of air flow is finally gathered, headed and collided in the area, close to the flow guide block, in the shell, in the hedging process, moisture in steam is gathered, impurities are collided and separated, and therefore the effect that the steam is separated from the steam is achieved; and then the opposite-flushing and converging airflow passes through the collecting net cylinder, and water and impurities are filtered and enter the collecting box to be collected.

Description

Technical Field

[0001] The utility model relates to the technical field of steam pressure reducing valves, in particular to an anti-corrosion steam pressure reducing valve. Background Art

[0002] A steam pressure reducing valve is a device used to control the steam pressure in a system. It regulates and maintains the steam pressure inside the pipeline, ensuring that the system operates within a safe pressure range. Steam pressure reducing valves are commonly used in steam boiler systems, heating systems, and other equipment that requires steam pressure regulation. They are designed to ensure that steam is released after reaching the set pressure, thereby avoiding over-pressurization of the pipeline or equipment.

[0003] In the existing steam pressure reducing valve, long-term use, the steam pressure reducing valve is in a high humidity environment, such an environment may cause corrosion and rust on the metal surface of the steam pressure reducing valve, and if there are corrosive gases or chemicals in the steam, this will promote the rust of the metal surface, and frequent temperature changes may also cause the rust of the steam pressure reducing valve, so the internal valve body of the steam pressure reducing valve needs to be replaced regularly, which is cumbersome and increases the cost of use. In addition, most of the existing steam pressure reducing valves lack the function of filtering water vapor in the steam and regulating the temperature.

[0004] In view of the above problems, in order to ensure the long-term and efficient operation of the equipment, it is necessary to develop a new type of steam pressure reducing valve that can extend the service life of the valve body, has effective water vapor filtration function and temperature control. Utility Model Content

[0005] The technical solution of the utility model aims at the technical problem that the existing technical solution is too single, and provides a solution of an anti-corrosion steam pressure reducing valve which is significantly different from the existing technology, so as to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rust-proof steam pressure reducing valve, comprising a shell, a filtering structure is provided inside the inlet end of the shell, a guide block is provided inside the shell between the filtering structure and the valve core installation area, and a diversion structure is provided in the area between the guide block and the valve core on both sides of the inlet end of the shell, and a cooling structure for cooling the steam is connected between the diversion structure and the outer wall of the shell, the inner wall of the shell is provided with a ceramic anti-corrosion coating to prevent erosion, and a thermometer for measuring temperature is installed at the other outlet end of the shell.

[0007] Preferably, the filtering structure includes a guide plate, a guide pipe, a spiral blade, a collecting net cylinder, and a collecting box. A guide pipe is connected to each side of the inner wall of the shell, and a guide plate is correspondingly connected to one side of the inner wall of the shell close to the guide pipe. Each inner wall of the guide pipe is provided with a spiral blade. A collecting net cylinder is provided in the shell, and the lower end of the collecting net cylinder is connected to the collecting box, and the collecting box is installed on the outer wall of the shell.

[0008] Preferably, the guide tube is configured as a "concave" structure, and both ends of the guide tube are configured to be inclined, and the inclination direction is away from one side of the thermometer, the collecting net tube is configured as a triangular columnar hollow structure, and the collecting net tube is densely provided with mesh holes at equal intervals, and the collecting net tube is located in the shell near the return ends of several guide tubes.

[0009] Preferably, the guide block is configured as a diamond-shaped structure, and the guide block is used to divert the filtered steam and guide it to the diversion structure.

[0010] Preferably, the diversion structure includes an inlet, a heat-conducting sealing plate, a box body, a memory alloy spring, an adjusting spring, an adjusting plate, a sliding sleeve, a threaded rod, a box body, a bevel gear set, and an adjusting rotating rod. The outer wall of the shell body is provided with at least two inlets at equal angles, and two heat-conducting sealing plates are slidably connected in each inlet, and the ends of the heat-conducting sealing plates are located in the box body installed corresponding to the outer wall of the shell body, the heat-conducting sealing plates are connected with a memory alloy spring between the areas in the box body, and the heat-conducting sealing plates are connected with an adjusting spring on the other side of the areas in the box body, and each adjusting spring is connected with an adjusting plate at the other end, and each adjusting spring is connected with an adjusting plate at each end, and each adjusting plate end passes through both sides of the box body and is respectively connected with a sliding sleeve, the sliding sleeves are respectively sleeved and connected to both ends of the threaded rod, and the threaded rod passes through and is rotatably connected to both sides of the box body, and the box body is installed on the outer wall of the box body, and the outer wall of the threaded rod in the box body is connected with a bevel gear set, and the bevel gear set is connected with an adjusting rotating rod passing through the outer wall of the box body.

[0011] Preferably, the spiral directions of the threads at both ends of the threaded rod are opposite, and the threaded rod and the sliding sleeve are threadedly connected.

[0012] Preferably, the cooling structure includes a meandering cooling pipe, a branch pipe, a control valve, and a one-way valve. The outer wall of the box body is connected to the meandering cooling pipe, and a one-way valve is connected between the other end of the meandering cooling pipe and the shell. Several branch pipes are connected between the meandering cooling pipes, and each branch pipe is provided with a control valve.

[0013] Preferably, both end regions of the meander-shaped cooling tube are configured as spiral tubular structures, and a branch tube is connected between each spiral at both ends of the meander-shaped cooling tube.

[0014] Compared with the prior art, the beneficial effect of the utility model is that the rust-proof steam pressure reducing valve can divert the steam entering the steam pressure reducing valve into several streams and enter the corresponding guide pipes through the setting of the filtering structure. The flow velocity is accelerated due to the fact that the inner diameter of the guide pipe is narrower than that of the shell, and the setting of the spiral blades causes the airflow to rotate during the flow. These multiple streams of air eventually converge and collide in the shell near the guide block area. During the collision process, the moisture in the steam converges and the impurities collide and separate, thereby achieving the effect of separating them from the steam. Then the converged airflow passes through the collecting mesh tube, and the moisture and impurities are filtered and collected in the collection box.

[0015] By setting the guide block, the diversion structure and the cooling structure, the filtered steam is diverted by the guide block and acts on the heat-conducting sealing plate, and the heat is transferred to the memory alloy spring. When the temperature is too high, the memory alloy spring will deform and push the heat-conducting sealing plate to both sides, so that the inlet is opened, and the steam in the shell enters the meandering cooling pipe for cooling. A heat sink or a connecting cooling mechanism can be installed outside the meandering cooling pipe. A thermometer can be set at the other end of the shell. By observing the temperature count value, the control valves on different branches can be opened. Every time the steam passes through one more spiral on the meandering cooling pipe, the temperature will drop a little. If the steam enters the shell from the meandering cooling pipe throughout the whole process, it is the maximum cooling degree, and the adjusting spring can be compressed by adjusting the adjusting plates on both sides, so as to achieve the temperature value that triggers the deformation of the memory alloy spring to push the heat-conducting sealing plate, thereby improving flexibility.

[0016] The ceramic anti-corrosion coating provides excellent wear and corrosion resistance, effectively preventing steam erosion in the steam pressure reducing valve to extend the service life of the valve body and reduce the risk of steam leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the cross-sectional structure of the heat-conducting sealing plate of the utility model in a closed state when viewed from above;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the heat-conducting sealing plate of the utility model in an open state;

[0019] Figure 3 This is a schematic diagram of the top view structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the front view structure of the utility model;

[0021] Figure 5 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0022] Figure 6 It is a schematic diagram of the spiral structure at the end of the meander-shaped cooling pipe of the utility model.

[0023] In the figure: 1. Shell; 2. Filter structure; 201. Guide plate; 202. Guide pipe; 203. Spiral blade; 204. Collecting net tube; 205. Collecting box; 3. Guide block; 4. Diversion structure; 401. Inlet; 402. Heat-conducting sealing plate; 403. Box body; 404. Memory alloy spring; 405. Adjusting spring; 406. Adjusting plate; 407. Sliding sleeve; 408. Threaded rod; 409. Box body; 410. Bevel gear set; 411. Adjusting rotating rod; 5. Cooling structure; 501. Round cooling pipe; 502. Branch pipe; 503. Control valve; 504. Check valve; 6. Ceramic anti-corrosion coating. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-6 The utility model provides a technical solution: an anti-corrosion steam pressure reducing valve, comprising a housing 1, a filtering structure 2, a guide plate 201, a guide pipe 202, a spiral blade 203, a collecting net tube 204, a collecting box 205, a guide block 3, a diversion structure 4, an inlet 401, a heat-conducting sealing plate 402, a box body 403, a memory alloy spring 404, an adjusting spring 405, an adjusting plate 406, a sliding sleeve 407, a threaded rod 408, a box body 409, a bevel gear set 410, an adjusting rotating rod 411, a cooling structure 5, and a circular cooling pipe 5 01, branch pipe 502, control valve 503, one-way valve 504, ceramic anti-corrosion coating 6, a filtering structure 2 is provided inside the inlet end of the shell 1, a guide block 3 is provided between the filtering structure 2 and the valve core installation area in the shell 1, and a diversion structure 4 is provided on both sides of the inlet end of the shell 1 between the guide block 3 and the valve core, and a cooling structure 5 for cooling the steam is connected between the diversion structure 4 and the outer wall of the shell 1, a ceramic anti-corrosion coating 6 for preventing erosion is provided on the inner wall of the shell 1, and a thermometer for measuring the temperature is installed at the other outlet end of the shell 1.

[0026] The filtering structure 2 includes a guide plate 201, a guide tube 202, a spiral blade 203, a collecting net cylinder 204, and a collecting box 205. A guide tube 202 is connected to each side of the inner wall of the shell 1, and a guide plate 201 is connected to each side of the inner wall of the shell 1 close to the guide tube 202. The inner wall of each guide tube 202 is provided with a spiral blade 203. A collecting net cylinder 204 is provided in the shell 1, and the lower end of the collecting net cylinder 204 is connected to the collecting box 205, and the collecting box 205 is installed on the outer wall of the shell 1.

[0027] The guide tube 202 is configured as a "concave" structure, and both ends of the guide tube 202 are configured to be inclined, and the inclination direction is away from the side of the thermometer 7. The collecting net tube 204 is configured as a triangular columnar hollow structure, and the collecting net tube 204 is densely provided with mesh holes at equal intervals, and the collecting net tube 204 is located in the shell 1 between the return ends of several guide tubes 202.

[0028] The guide block 3 is configured as a diamond-shaped structure, and the guide block 3 is used to divert the filtered steam and guide it to the diversion structure 4 .

[0029] The flow-dividing structure 4 comprises an inlet 401, a heat-conducting sealing plate 402, a box body 403, a memory alloy spring 404, an adjusting spring 405, an adjusting plate 406, a sleeve 407, a threaded rod 408, a box body 409, a bevel gear set 410, and an adjusting rotating rod 411. At least two inlets 401 are provided at equal angles on the outer wall of the shell 1, and two heat-conducting sealing plates 402 are slidably connected in each inlet 401, and the end of the heat-conducting sealing plate 402 is located in the box body 403 corresponding to the outer wall of the shell 1, and the heat-conducting sealing plate 402 is located in the box body 403. The memory alloy spring 404 is connected between the areas where the heat-conducting sealing plate 402 is located, and the heat-conducting sealing plate 402 is located in the box body 403. The sealing plate 402 is located on the other side of the inner area of ​​the box body 403 and is connected to an adjusting spring 405, and the other end of each adjusting spring 405 is connected to an adjusting plate 406, and each end of the adjusting plate 406 passes through the box body 403 and is connected to a sliding sleeve 407 on both sides, and the sliding sleeves 407 are respectively sleeved and connected to the two ends of the threaded rod 408, and the threaded rod 408 passes through and is rotatably connected to both sides of the box body 409, and the box body 409 is installed on the outer wall of the box body 403, and the outer wall of the threaded rod 408 in the box body 403 is connected to a bevel gear set 410, and the bevel gear set 410 is connected to an adjusting rotating rod 411 that passes through the outer wall of the box body 409.

[0030] The screw threads at both ends of the threaded rod 408 have opposite spiral directions, and the threaded rod 408 and the sliding sleeve 407 are threadedly connected.

[0031] The cooling structure 5 includes a meandering cooling pipe 501, a branch pipe 502, a control valve 503, and a one-way valve 504. The outer wall of the box body 403 is connected to the meandering cooling pipe 501, and a one-way valve 504 is connected between the other end of the meandering cooling pipe 501 and the shell 1. Several branch pipes 502 are connected between the meandering cooling pipes 501, and each branch pipe 502 is provided with a control valve 503.

[0032] The two end regions of the meander-shaped cooling pipe 501 are both configured as spiral tubular structures, and a branch pipe 502 is connected between each spiral at both ends of the meander-shaped cooling pipe 501 .

[0033] Working principle: According to Figure 1 As shown, first, the shell 1 is installed between the pipes. When the steam passes through, part of the steam enters the guide pipe 202, accelerates the flow and is acted on by the spiral blades 203, causing the steam to rotate, and finally converges and counteracts in the shell 1. During the counteracting process, the water in the steam converges, and the impurities collide and separate, thereby achieving the effect of separating them from the steam. After filtering and separation through the collecting net tube 204, the impurities and water enter the collecting box 205. The filtered steam acts on the heat-conducting sealing plate 402 through the guide block 3, and the heat is transferred to the memory alloy spring 404. When the temperature is too high, the memory alloy spring 404 will deform and push the heat-conducting sealing plate 402 away, so that the steam enters the meandering cooling pipe 501 through the inlet 401 for cooling. By opening the control valve 503 on the branch pipe 502, it is selected how many times the steam rotates in the meandering cooling pipe 501, and then passes through the one-way valve 504 to enter the shell 1 and neutralize with the steam. Each additional rotation will reduce the temperature even more.

[0034] By rotating the adjusting rod 411 to drive the threaded rod 408 to rotate through the bevel gear set 410, the sliding sleeve 407 and the adjusting plate 406 are driven to move closer to or away from each other, so as to adjust the compression degree of the adjusting spring 405, thereby adjusting the temperature required when the memory alloy spring 404 deforms and pushes away the heat-conducting sealing plate 402. This is the working principle of the anti-corrosion steam pressure reducing valve.

[0035] Although 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 appended claims and their equivalents.

Claims

1. A corrosion-resistant steam pressure reducing valve, comprising a housing (1), characterized in that: A filter structure (2) is provided inside the inlet end of the shell (1), a guide block (3) is provided inside the shell (1) between the filter structure (2) and the valve core installation area, and a diversion structure (4) is provided in the area between the guide block (3) and the valve core on both sides of the inlet end of the shell (1), and a cooling structure (5) for cooling steam is connected between the diversion structure (4) and the outer wall of the shell (1), a ceramic anti-corrosion coating (6) for preventing erosion is provided on the inner wall of the shell (1), and a thermometer for measuring temperature is installed at the other outlet end of the shell (1).

2. The anti-corrosion steam pressure reducing valve according to claim 1, characterized in that: The filtering structure (2) comprises a guide plate (201), a guide tube (202), a spiral blade (203), a collection net cylinder (204), and a collection box (205); a guide tube (202) is connected to each of the two sides of the inner wall of the shell (1); and a guide plate (201) is connected to each side of the inner wall of the shell (1) close to the guide tube (202); the inner wall of each guide tube (202) is provided with a spiral blade (203); a collection net cylinder (204) is provided in the shell (1); the lower end of the collection net cylinder (204) is connected to the collection box (205); and the collection box (205) is mounted on the outer wall of the shell (1).

3. The anti-corrosion steam pressure reducing valve according to claim 2, characterized in that: The guide tube (202) is configured as a "concave" structure, and both ends of the guide tube (202) are configured to be inclined, and the inclination direction is away from the side of the thermometer (7); the collection net cylinder (204) is configured as a triangular columnar hollow structure, and mesh holes are densely arranged at equal intervals on the collection net cylinder (204), and the collection net cylinder (204) is located in the shell (1) between the return ends of the plurality of guide tubes (202).

4. The anti-corrosion steam pressure reducing valve according to claim 1, characterized in that: The guide block (3) is configured as a diamond-shaped structure, and the guide block (3) is used to divert filtered steam and direct it to the diversion structure (4).

5. The anti-corrosion steam pressure reducing valve according to claim 1, characterized in that: The flow-dividing structure (4) comprises an inlet (401), a heat-conducting sealing plate (402), a box body (403), a memory alloy spring (404), an adjustment spring (405), an adjustment plate (406), a sleeve (407), a threaded rod (408), a box body (409), a bevel gear set (410), and an adjustment rotating rod (411); at least two inlets (401) are provided at equal angles on the outer wall of the shell (1); two heat-conducting sealing plates (402) are slidably connected in each inlet (401); the ends of the heat-conducting sealing plates (402) are located in the box body (403) corresponding to the outer wall of the shell (1); the memory alloy spring (404) is connected between the areas of the heat-conducting sealing plates (402) located in the box body (403); The heat-conducting sealing plate (402) is located at the other side of the inner area of ​​the box body (403), and is connected to an adjusting spring (405), and the other end of each adjusting spring (405) is connected to an adjusting plate (406), and the end of each adjusting plate (406) passes through the box body (403) and is connected to a sliding sleeve (407) on both sides, respectively, and the sliding sleeve (407) is respectively sleeved and connected to the two ends of the threaded rod (408), and the threaded rod (408) passes through and is rotatably connected to the two sides of the box body (409), and the box body (409) is installed on the outer wall of the box body (403), and the outer wall of the threaded rod (408) in the box body (403) is connected to a bevel gear set (410), and the bevel gear set (410) is connected to an adjusting rotating rod (411) that passes through the outer wall of the box body (409).

6. The anti-corrosion steam pressure reducing valve according to claim 5, characterized in that: The threads at both ends of the threaded rod (408) have opposite spiral directions, and the threaded rod (408) and the sliding sleeve (407) are threadedly connected.

7. The anti-corrosion steam pressure reducing valve according to claim 5, characterized in that: The cooling structure (5) comprises a meandering cooling pipe (501), a branch pipe (502), a control valve (503), and a one-way valve (504); the outer wall of the box body (403) is connected to the meandering cooling pipe (501), and the one-way valve (504) is connected between the other end of the meandering cooling pipe (501) and the shell (1); a plurality of branch pipes (502) are connected between the meandering cooling pipes (501), and each branch pipe (502) is provided with a control valve (503).

8. The anti-corrosion steam pressure reducing valve according to claim 7, characterized in that: The two end regions of the meandering cooling pipe (501) are both configured as spiral tubular structures, and a branch pipe (502) is connected between each spiral at the two ends of the meandering cooling pipe (501).

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