Anti-corrosion low-temperature-resistant valve casting

Abstract

The utility model discloses an anti-corrosion low-temperature-resistant valve casting, and relates to the technical field of valve castings. Comprising a protective casting shell, connecting pipes are installed at the two ends of the protective casting shell, connecting flanges are installed on the outer walls of the connecting pipes, and a detachable top cover is installed on the outer wall of the top of the protective casting shell. The effect of controlling the water flow and the circulation performance can be achieved through the arranged blocking mechanism, impurities in liquid can be removed through the arranged filtering mechanism, meanwhile, the detachable function is achieved, the collected impurities can be conveniently taken out to be cleaned, components in the filtering mechanism can be conveniently maintained, and the practicability is high. The drainage pipe installed on the outer wall of the bottom of the connecting pipe in the water inlet direction is matched with the drainage valve, so that when the blocking mechanism is subjected to large pressure, pressure relief is conducted, water is guided into the protective casting shell, and then the water is guided into the connecting pipe in the water drainage direction through the arranged water inlet mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of valve castings, in particular to an anti-corrosion and low-temperature resistant valve casting. Background Art

[0002] Valve castings are a key component in valve manufacturing and are usually used to control the flow of fluid. Valve castings are an indispensable part of fluid control systems. Their design and manufacturing directly affect the performance and reliability of the valve. Selecting the right materials and manufacturing processes is crucial to ensuring the long-term stable operation of the valve.

[0003] Patent publication number CN220227986U discloses a corrosion-resistant low-temperature valve casting, comprising a casting body, a water inlet on one side of the casting body, a water outlet on the other side of the casting body, flanges fixedly connected to the surfaces of the water inlet and outlet, a limiting opening at the top center of the casting body, a docking block fixedly connected to the surface of the limiting opening, a connecting block movably connected to the top of the docking block, a threaded sleeve fixedly connected to the surface of the connecting block, and a limiting hole on the top of the threaded sleeve. The utility model can filter out impurities in the water flow through the provision of a filtering mechanism, a first anti-corrosion coating, a second anti-corrosion coating, a low-temperature resistant layer, reinforcing ribs, a pressure sensor, and an electronic alarm, thereby improving the corrosion resistance and low-temperature resistance of the casting, and increasing the internal pressure resistance of the casting. At the same time, it can monitor the pressure of the water flow, and if the pressure is too high, an electronic alarm will be used to prompt staff to handle the problem.

[0004] However, in the valve castings mentioned above and those with similar working principles, the filtering mechanism for filtering impurities is only convenient for providing a simple filtering effect, and is not convenient for removing the impurities generated by the filtration. At the same time, when a water valve is used to directly resist the water flow, when the pressure in the pipeline is too high, it may cause damage to the surface of the valve plate, thereby reducing the service life of the valve plate, and thus the present application is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a corrosion-resistant and low-temperature-resistant valve casting to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a corrosion-resistant and low-temperature resistant valve casting, comprising a protective casting shell, connecting pipes are installed at both ends of the protective casting shell, connecting flanges are installed on the outer walls of the connecting pipes, a removable top cover is installed on the top outer wall of the protective casting shell, a blocking mechanism for controlling the flow of water is installed between the two connecting pipes inside the protective casting shell, a filtering mechanism for removing impurities in the water flow is installed on the outer wall of the connecting pipe in the water inlet direction, a drain pipe is installed at the bottom of the outer wall of the connecting pipe in the water inlet direction, a drain valve is installed on the outer wall of the drain pipe, a water inlet mechanism for absorbing the liquid inside the protective casting shell is installed on the outer wall of the connecting pipe in the drainage direction, and a stirring mechanism for stirring the liquid inside the protective casting shell is installed on the outer and inner walls of the protective casting shell.

[0007] Furthermore, the blocking mechanism includes a connecting frame installed between two connecting pipes, hydraulic cylinders are installed on the outer walls on both sides of the connecting frame, a valve plate is plugged into the connecting frame, a first connecting block is installed on the top outer wall of the valve plate, one end of the piston rod of the hydraulic cylinder is fixedly connected to the first connecting block, corrosion-resistant coating plates are installed on the outer walls at both ends of the valve plate, and a pressure sensor is embedded in the end of the valve plate facing the water inlet direction.

[0008] Furthermore, the water inlet mechanism includes water inlet pipes installed on both sides of the top of the outer wall of the connecting pipe in the drainage direction, and a water pump is installed on the outer wall of the water inlet pipe.

[0009] Furthermore, the filtering mechanism includes an arc-shaped groove opened on the top outer wall of the connecting pipe in the water inlet direction, an annular groove is opened at the bottom of the arc-shaped groove, a bottom ring is inserted in the annular groove, an arc-shaped block is inserted in the annular groove, a filter plate is installed between the bottom inner wall of the arc-shaped block and the top inner wall of the bottom ring, a second connecting block is installed on the top outer wall of the arc-shaped block, an electric push rod is installed on the outer wall of the protective casting shell, and one end of the piston rod of the electric push rod is fixedly connected to the second connecting block.

[0010] Furthermore, a plurality of through grooves are provided on the top outer wall of the top cover, and the stirring mechanism includes a main gear and a sub-gear driven by a driving motor which are rotatably connected to both sides of the bottom of the outer wall at one end of the protective casting shell. A toothed belt is provided on the bottom of the outer wall at one end of the protective casting shell, and the main gear and the sub-gear are both engaged with the toothed belt. A stirring rod located inside the protective casting shell is fixedly connected to the outer walls of the main gear and the sub-gear, and a plurality of stirring blades are installed on the outer wall of the stirring rod.

[0011] Furthermore, ear plates are installed at both ends of the inner walls on both sides of the protective casting shell, and a heating wire is installed between the bottom outer wall of the ear plate and the bottom inner wall of the protective casting shell.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The corrosion-resistant and low-temperature-resistant valve casting can provide the effect of controlling the water flow size and circulation performance through the provided blocking mechanism, and can remove impurities in the liquid through the provided filtering mechanism. At the same time, it has a detachable function, which is convenient for removing and cleaning the collected impurities and maintaining the components in the filtering mechanism. The drain pipe installed on the bottom outer wall of the connecting pipe in the water inlet direction is combined with the drain valve to relieve the pressure when the blocking mechanism is subjected to a large pressure, and drain the water into the interior of the protective casting shell, and then introduce the water into the connecting pipe in the drainage direction through the provided water inlet mechanism.

[0014] At the same time, according to the needs of use, the top cover can be opened, and the target raw materials or substances can be put into the interior of the protective casting shell. The stirring mechanism is used to make it fully mixed, and then the water inlet mechanism introduces the mixed solution into the connecting pipe in the drainage direction, which is conducive to improving the scalability and facilitating the purification of the circulating liquid or adding other required characteristics. The corrosion-resistant coating plate provided on the valve plate can protect the valve plate, which is conducive to extending the service life of the valve plate. The pressure sensor provided can monitor the pressure changes on the valve plate. The heating wire provided can be started when the water inside the protective casting shell is drained, and the inside of the protective casting shell is heated and dried, reducing the possibility of rust after contact with water inside the protective casting shell of the component. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the external structure of the connecting pipe of the utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the connecting pipe of the present invention;

[0018] Figure 4 This is a schematic diagram of the cross-sectional structure of the protective casting shell of the present utility model.

[0019] In the figure: 1. Protective casting shell; 2. Stirring mechanism; 201. Main gear; 202. Toothed belt; 203. Sub-gear; 204. Stirring rod; 205. Stirring blade; 3. Connecting pipe; 4. Connecting flange; 5. Top cover; 6. Water inlet mechanism; 601. Water inlet pipe; 602. Water pump; 7. Blocking mechanism; 701. Connecting frame; 702. Valve plate; 703. Pressure sensor; 704. First connecting block; 705. Hydraulic cylinder; 706. Corrosion-resistant coating plate; 8. Filtering mechanism; 801. Bottom ring; 802. Filter plate; 803. Arc block; 804. Electric push rod; 805. Second connecting block; 9. Drain pipe; 10. Drain valve; 11. Ear plate; 12. Heating wire. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] In the process of conveying liquid, valve castings are needed. The valve casting provided by the utility model is specially used for infusion operations to filter impurities in water and extend the service life of the valve plate. In the process of using this valve casting to convey liquid, it is necessary to power the parts in the valve casting that need power supply and ensure the good fluidity of the filter plate in advance, so as to ensure the normal operation of the valve casting.

[0022] like Figures 1-4 As shown, the utility model provides a technical solution: a corrosion-resistant and low-temperature resistant valve casting, comprising a protective casting shell 1, connecting pipes 3 are installed at both ends of the protective casting shell 1, connecting flanges 4 are installed on the outer wall of the connecting pipes 3, a detachable top cover 5 is installed on the top outer wall of the protective casting shell 1, a blocking mechanism 7 for controlling water flow is installed between the two connecting pipes 3 inside the protective casting shell 1, a filtering mechanism 8 for removing impurities in the water flow is installed on the outer wall of the connecting pipe 3 in the water inlet direction, a drain pipe 9 is installed at the bottom of the outer wall of the connecting pipe 3 in the water inlet direction, a drain valve 10 is installed on the outer wall of the drain pipe 9, a water inlet mechanism 6 for absorbing the liquid inside the protective casting shell 1 is installed on the outer wall of the connecting pipe 3 in the drainage direction, and a stirring mechanism 2 for stirring the liquid inside the protective casting shell 1 is installed on the outer and inner walls of the protective casting shell 1.

[0023] It should be noted that the water inlet direction and the drainage direction are determined based on the filtering mechanism 8. The liquid is filtered before passing through the blocking mechanism 7. Through the connecting flange 4 on the connecting pipe 3, other liquid conveying pipes can be connected. The blocking mechanism 7 provided can provide the effect of controlling the water flow size and flow performance. The filtering mechanism 8 provided can remove impurities in the liquid. At the same time, it has a detachable function, which is convenient for removing and cleaning the collected impurities and maintaining the components in the filtering mechanism 8. The drain pipe 9 installed on the bottom outer wall of the connecting pipe 3 in the water inlet direction cooperates with the drain valve 10 to relieve the pressure when the blocking mechanism 7 is subjected to a large pressure, and drain the water to the protective casting shell 1. Inside, water is introduced into the connecting pipe 3 in the drainage direction through the water inlet mechanism 6. At the same time, according to the use requirements, the top cover 5 can be opened, and the target raw material or substance can be put into the interior of the protective casting shell 1, and mixed through the stirring mechanism 2. The mixed solution is then introduced into the connecting pipe 3 in the drainage direction by the water inlet mechanism 6, which is conducive to improving the scalability and is convenient for purifying the circulating liquid or adding other required characteristics. For example, chloride is added to the interior of the protective casting shell 1 and fully mixed with the water inside the protective casting shell 1. The solution is then introduced into the connecting pipe 3 in the drainage direction by the water inlet mechanism 6, which can expand the scope of influence of the solution, and the chloride is used to disinfect the water source and kill bacteria and viruses in the water.

[0024] like Figure 2 and Figure 3 As shown, the blocking mechanism 7 includes a connecting frame 701 installed between the two connecting pipes 3, hydraulic cylinders 705 are installed on the outer walls of both sides of the connecting frame 701, a valve plate 702 is inserted into the connecting frame 701, a first connecting block 704 is installed on the top outer wall of the valve plate 702, one end of the piston rod of the hydraulic cylinder 705 is fixedly connected to the first connecting block 704, corrosion-resistant coating plates 706 are installed on the outer walls of both ends of the valve plate 702, and a pressure sensor 703 is embedded in the end of the valve plate 702 facing the water inlet direction.

[0025] It should be noted that, by means of the valve plate 702, the circulation of liquid can be blocked; by means of the hydraulic cylinder 705 in cooperation with the valve plate 702, the flow of liquid can be adjusted according to the use requirements; by means of the corrosion-resistant coating plate 706, the valve plate 702 can be protected, thereby extending the service life of the valve plate 702; by means of the pressure sensor 703, the pressure change on the valve plate 702 can be monitored; when the pressure change is greater than the critical value, the pressure can be released by opening the drain valve 10 on the drain pipe 9, thereby protecting the valve plate 702 and extending the service life of the valve plate 702.

[0026] like Figure 2 and Figure 3As shown, the water inlet mechanism 6 includes a water inlet pipe 601 installed on both sides of the top of the outer wall of the connecting pipe 3 in the drainage direction, and a water pump 602 is installed on the outer wall of the water inlet pipe 601.

[0027] It should be noted that by starting the water pump 602, the water inside the protective casting shell 1 can be transported to the connecting pipe 3 in the drainage direction through the water inlet pipe 601, which plays a role of re-introduction, facilitates saving liquid resources and is convenient for use.

[0028] like Figure 3 As shown, the filtering mechanism 8 includes an arc-shaped groove opened on the top outer wall of the connecting pipe 3 in the water inlet direction, an annular groove is opened at the bottom of the arc-shaped groove, a bottom ring 801 is inserted in the annular groove, an arc-shaped block 803 is inserted in the annular groove, a filter plate 802 is installed between the bottom inner wall of the arc block 803 and the top inner wall of the bottom ring 801, a second connecting block 805 is installed on the top outer wall of the arc block 803, an electric push rod 804 is installed on the outer wall of the protective casting shell 1, and one end of the piston rod of the electric push rod 804 is fixedly connected to the second connecting block 805.

[0029] It should be noted that the filter plate 802 is provided to filter out impurities in the liquid, and the bottom ring 801 and the arc block 803 are provided to accommodate the filtered impurities. By starting the electric push rod 804, the bottom ring 801, the filter plate 802 and the arc block 803 can be pushed out from the connecting pipe 3, which is convenient for the staff to regularly clean the impurities on the filter plate 802 and replace or maintain the filter plate 802 to ensure the circulation rate of the liquid.

[0030] like Figure 1 and Figure 4 As shown, a plurality of through grooves are provided on the top outer wall of the top cover 5, and the stirring mechanism 2 includes a main gear 201 and a sub-gear 203 driven by a driving motor and rotatably connected to both sides of the bottom of the outer wall of one end of the protective casting shell 1. A toothed belt 202 is provided on the bottom of the outer wall of one end of the protective casting shell 1, and the main gear 201 and the sub-gear 203 are both engaged with the toothed belt 202. A stirring rod 204 located inside the protective casting shell 1 is fixedly connected to the outer walls of the main gear 201 and the sub-gear 203, and a plurality of stirring blades 205 are installed on the outer wall of the stirring rod 204.

[0031] It should be noted that the through grooves are provided to play the role of exhausting air and adding target raw materials and substances. The stirring mechanism 2 is provided to fully mix the liquid inside the protective casting shell 1 with the input substance. When the stirring mechanism 2 needs to be started, the main gear 201 is driven to rotate by starting the drive motor, and the sub-gear 203 is driven to rotate by the action of the toothed belt 202. The rotation of the main gear 201 and the sub-gear 203 can drive the stirring rod 204 and the stirring blade 205 on the stirring rod 204 to rotate, thereby fully stirring and mixing the liquid.

[0032] like Figure 4 As shown, ear plates 11 are installed at both ends of the inner walls of both sides of the protective casting shell 1, and a heating wire 12 is installed between the bottom outer wall of the ear plate 11 and the bottom inner wall of the protective casting shell 1.

[0033] It should be noted that the heating wire 12 can be started when the water inside the protective casting shell 1 is drained, thereby heating and drying the inside of the protective casting shell 1, reducing the possibility of rust after contact with the water inside the component protective casting shell 1. At the same time, the target raw materials or substances put in can also be heated to improve the mixing efficiency.

[0034] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is limited by the accompanying embodiments and their equivalents.

Claims

1. A corrosion-resistant and low-temperature-resistant valve casting, comprising a protective casting shell (1), characterized in that: Both ends of the protective casting shell (1) are equipped with connecting pipes (3), the outer wall of the connecting pipes (3) is equipped with connecting flanges (4), a removable top cover (5) is equipped on the top outer wall of the protective casting shell (1), a blocking mechanism (7) for controlling the flow of water is installed between the two connecting pipes (3) inside the protective casting shell (1), a filtering mechanism (8) for removing impurities in the water flow is installed on the outer wall of the connecting pipe (3) in the water inlet direction, a drain pipe (9) is installed at the bottom of the outer wall of the connecting pipe (3) in the water inlet direction, a drain valve (10) is installed on the outer wall of the drain pipe (9), a water inlet mechanism (6) for absorbing the liquid inside the protective casting shell (1) is installed on the outer wall of the connecting pipe (3) in the drainage direction, and a stirring mechanism (2) for stirring the liquid inside the protective casting shell (1) is installed on the outer and inner walls of the protective casting shell (1).

2. The corrosion-resistant and low-temperature-resistant valve casting according to claim 1, characterized in that: The blocking mechanism (7) comprises a connecting frame (701) installed between two connecting pipes (3), hydraulic cylinders (705) are installed on the outer walls of both sides of the connecting frame (701), a valve plate (702) is inserted into the connecting frame (701), a first connecting block (704) is installed on the top outer wall of the valve plate (702), one end of the piston rod of the hydraulic cylinder (705) is fixedly connected to the first connecting block (704), corrosion-resistant coating plates (706) are installed on the outer walls of both ends of the valve plate (702), and a pressure sensor (703) is embedded and installed at one end of the valve plate (702) facing the water inlet direction.

3. The corrosion-resistant and low-temperature-resistant valve casting according to claim 1, characterized in that: The water inlet mechanism (6) comprises water inlet pipes (601) installed on both sides of the top of the outer wall of the connecting pipe (3) in the drainage direction, and a water pump (602) is installed on the outer wall of the water inlet pipe (601).

4. The corrosion-resistant and low-temperature-resistant valve casting according to claim 1, characterized in that: The filtering mechanism (8) comprises an arc-shaped groove provided on the top outer wall of the connecting pipe (3) in the water inlet direction, an annular groove provided at the bottom of the arc-shaped groove, a bottom ring (801) inserted into the annular groove, an arc-shaped block (803) inserted into the annular groove, a filter plate (802) installed between the bottom inner wall of the arc-shaped block (803) and the top inner wall of the bottom ring (801), a second connecting block (805) installed on the top outer wall of the arc-shaped block (803), an electric push rod (804) installed on the outer wall of the protective casting shell (1), and one end of the piston rod of the electric push rod (804) fixedly connected to the second connecting block (805).

5. The corrosion-resistant and low-temperature-resistant valve casting according to claim 1, characterized in that: The top outer wall of the top cover (5) is provided with a plurality of through grooves. The stirring mechanism (2) comprises a main gear (201) and a sub-gear (203) driven by a driving motor and rotatably connected to both sides of the bottom of the outer wall of one end of the protective casting shell (1). A toothed belt (202) is provided on the bottom of the outer wall of one end of the protective casting shell (1). The main gear (201) and the sub-gear (203) are both meshed with the toothed belt (202). A stirring rod (204) located inside the protective casting shell (1) is fixedly connected to the outer walls of the main gear (201) and the sub-gear (203). A plurality of stirring blades (205) are installed on the outer wall of the stirring rod (204).

6. The corrosion-resistant and low-temperature-resistant valve casting according to claim 1, characterized in that: Ear plates (11) are installed at both ends of the inner walls on both sides of the protective casting shell (1), and a heating wire (12) is installed between the bottom outer wall of the ear plate (11) and the bottom inner wall of the protective casting shell (1).

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