High-pressure angle stop valve for urea

Abstract

The utility model relates to the field of stop valve devices, and discloses a high-pressure angle stop valve for urea, which comprises an operating device and a working device, the operating device is arranged at the top end of the working device, the operating device comprises an upper shell, the middle of the top end of the upper shell is fixedly connected with a fixing frame, the middle of the inner side wall of the fixing frame is rotatably connected with a screw rod, and the screw rod is fixedly connected with the operating device. A lubricating shell is fixedly connected to the middle of the inner side wall of the fixing frame, an oil injection hole is fixedly connected to one side of the top end of the lubricating shell, an oil storage groove is fixedly connected to the inner side wall of the fixing block, a lubricating opening is formed in the side, close to the screw, of the inner side wall of the oil storage groove, a rotating handle is fixedly connected to the top end of the screw, and a sealing plug is rotationally connected to the bottom end of the screw. According to the high-pressure angle type stop valve for urea, the friction force between the screw and a part during rotation is reduced by arranging the operating device, the service life of the whole device is prolonged, and the safety of the device during use is improved by arranging the working device.

Description

Technical Field

[0001] The utility model relates to the field of stop valve devices, in particular to a high-pressure angle stop valve for urea. Background Art

[0002] The high-pressure angle-type stop-throttle valve is a forced-seal shutoff throttle valve designed for special operating conditions. It is widely used on high-pressure, high-temperature pipelines in thermal power plants, nuclear power plants, petroleum, chemical, pharmaceutical, and fertilizer systems. Its main media of application include water, oil, steam, nitrogen-hydrogen mixtures, lye, and liquid ammonia. Its popularity stems from the fact that the centerline of its flange forms a 90° right angle. This allows the fluid to change direction only once, resulting in a lower pressure drop across the valve than with conventional stop-throttle valves.

[0003] Although the existing technology controls the delivery of urea by setting a stop valve, the raw material is prone to backflow during the delivery process, which may cause damage to the device after long-term use. Therefore, those skilled in the art have provided a high-pressure angle stop valve for urea to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a high-pressure angle stop valve for urea, which provides a high-pressure angle stop valve for urea that reduces the friction between the screw and the parts when the screw rotates, thereby increasing the service life of the entire device, and improves the safety of the device when in use by providing a working device.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-pressure angle stop valve for urea, comprising an operating device and a working device, wherein the operating device is arranged at the top of the working device, and the operating device comprises an upper shell, a fixing bracket is fixedly connected to the middle of the top of the upper shell, a screw is rotatably connected to the middle of the inner wall of the fixing bracket, and limiting bolts are rotatably connected to both sides of the bottom end of the fixing bracket, a fixing block is fixedly connected to the bottom end of the inner wall of the fixing bracket, a lubrication shell is fixedly connected to the middle of the inner wall of the fixing bracket, an oil filling hole is fixedly connected to one side of the top of the lubrication shell, an oil storage tank is fixedly connected to the inner wall of the fixing block, a lubrication port is opened on the inner wall of the oil storage tank near the screw, a rotating handle is fixedly connected to the top of the screw, and a sealing plug is rotatably connected to the bottom end of the screw;

[0006] Through the above technical solution, by setting up an operating device, a lubricating shell is provided on the inner wall of the fixed frame, and the lubricating shell is provided on the side wall of the screw, and lubricating oil is added to the lubricating shell through the oil filling hole. As the screw rotates, the lubricating oil can be evenly coated on the side wall of the screw, which can reduce the friction between the screw and the parts when it rotates, and improve the overall service life of the device.

[0007] Furthermore, the working device includes a lower shell, a discharge port is fixedly connected to the front side of the lower shell, a positioning frame is fixedly connected to the front side of the inner side wall of the discharge port, a spring is fixedly connected to the middle part of the rear end of the positioning frame, a ball is fixedly connected to the other end of the spring, a limit plate is fixedly connected to the rear side of the inner side wall of the discharge port, a material injection port is fixedly connected to the bottom end of the lower shell, and the top end of the lower shell is fixedly connected to the bottom end of the upper shell;

[0008] Through the above technical solution, by setting up a working device, a positioning frame is set in the discharge port, a spring is set on the positioning frame, and it is connected to the ball through the spring. By utilizing the mutual adaptation between the ball and the limit plate, the backflow of raw materials can be avoided during the use of the device, thereby improving the safety of the device during use.

[0009] Furthermore, the screw rod passes through the upper end surface of the lubricating shell and is threadedly connected to the inner side wall of the fixing block;

[0010] Through the above technical solution, the position of the powder sealing plug can be effectively adjusted.

[0011] Furthermore, the sealing plug is slidably connected to the inner side wall of the lower shell, and the bottom end of the sealing plug is adapted to the top end of the inner side wall of the injection port;

[0012] Through the above technical solution, the device is effectively sealed.

[0013] Furthermore, the two limiting bolts are respectively threadedly connected to both sides of the fixing block;

[0014] Through the above technical solution, the fixing block is effectively installed.

[0015] Furthermore, the discharge port is communicated with the interior of the lower shell;

[0016] Through the above technical solution, the raw materials can be effectively discharged.

[0017] Furthermore, the ball and the inner side wall of the limiting plate are adapted to each other;

[0018] The above technical solution can effectively prevent the backflow of raw materials.

[0019] Furthermore, the oil filling hole passes through the upper end surface of the lubricating shell and communicates with the interior of the oil storage tank;

[0020] Through the above technical solution, lubricating oil can be effectively added to the oil storage tank.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the present invention, an operating device is provided, a lubricating shell is provided on the inner side wall of the fixing frame, and the lubricating shell is provided on the side wall of the screw. Lubricating oil is added to the lubricating shell through the oil filling hole. As the screw rotates, the lubricating oil can be evenly coated on the side wall of the screw, which can reduce the friction between the screw and the parts when rotating, and improve the service life of the entire device.

[0023] 2. In the utility model, a working device is provided, a positioning frame is provided in the discharge port, a spring is provided on the positioning frame, and the spring is connected to the ball. By utilizing the mutual adaptation between the ball and the limit plate, the backflow of raw materials during the use of the device can be avoided, thereby improving the safety of the device during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional diagram of the high-pressure angle stop valve for urea proposed in the utility model;

[0025] Figure 2 This is a front view of the high-pressure angle stop valve for urea proposed by the utility model;

[0026] Figure 3 This is a cross-sectional view of the high-pressure angle stop valve for urea proposed in the utility model;

[0027] Figure 4 This is a cross-sectional view of the lubrication housing of the high-pressure angle stop valve for urea proposed by the utility model.

[0028] Legend:

[0029] 1. Operating device; 101. Fixing frame; 102. Turning handle; 103. Screw; 104. Lubricating shell; 105. Fixing block; 106. Limit bolt; 107. Upper shell; 108. Oil storage tank; 109. Oil filling hole; 1010. Lubrication port; 1011. Sealing plug; 2. Working device; 201. Discharge port; 202. Positioning frame; 203. Lower shell; 204. Filling port; 205. Spring; 206. Ball; 207. Limit plate. DETAILED DESCRIPTION

[0030] 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.

[0031] Reference Figure 1-4The utility model provides an embodiment: a high-pressure angle stop valve for urea, comprising an operating device 1 and a working device 2, the operating device 1 being arranged at the top of the working device 2, the operating device 1 comprising an upper shell 107, a fixing frame 101 being fixedly connected to the middle of the top of the upper shell 107, a screw 103 being rotatably connected to the middle of the inner wall of the fixing frame 101, and limiting bolts 106 being rotatably connected to both sides of the bottom end of the fixing frame 101, a fixing block 105 being fixedly connected to the bottom end of the inner wall of the fixing frame 101, a lubricating shell 104 being fixedly connected to the middle of the inner wall of the fixing frame 101, an oil filling hole 109 being fixedly connected to one side of the top of the lubricating shell 104, and an inner wall of the fixing block 105 An oil storage tank 108 is fixedly connected, and a lubrication port 1010 is opened on the inner wall of the oil storage tank 108 near the side of the screw 103. The top of the screw 103 is fixedly connected to the handle 102, and the bottom end of the screw 103 is rotatably connected to the sealing plug 1011. By setting the operating device 1, a lubrication shell 104 is provided on the inner wall of the fixed frame 101, and the lubrication shell 104 is provided on the side wall of the screw 103. Lubricating oil is added to the lubrication shell 104 through the oil filling hole 109. As the screw 103 rotates, the lubricating oil can be evenly coated on the side wall of the screw 103, which can reduce the friction between the screw 103 and the parts when it rotates, thereby improving the overall service life of the device.

[0032] The working device 2 includes a lower shell 203, which is fixedly connected to a discharge port 201 on the front side, and a positioning frame 202 is fixedly connected to the front side of the inner wall of the discharge port 201, and a spring 205 is fixedly connected to the middle of the rear end of the positioning frame 202, and the other end of the spring 205 is fixedly connected to a ball 206, and the inner wall of the discharge port 201 is fixedly connected to a limiting plate 207 on the rear side, and a material injection port 204 is fixedly connected to the bottom end of the lower shell 203, and the top of the lower shell 203 is fixedly connected to the bottom end of the upper shell 107. By setting the working device 2, a positioning frame 202 is set in the discharge port 201, and a spring 205 is set on the positioning frame 202, and is connected to the ball 206 through the spring 205. The mutual adaptation between the ball 206 and the limiting plate 207 can avoid backflow of raw materials during use of the device, thereby improving the safety of the device during use.

[0033] The screw 103 passes through the upper end surface of the lubricating shell 104 and is threadedly connected to the inner wall of the fixed block 105. The sealing plug 1011 is slidably connected to the inner wall of the lower shell 203, and the bottom end of the sealing plug 1011 is adapted to the top of the inner wall of the injection port 204. The two limiting bolts 106 are threadedly connected to the two sides of the fixing block 105 respectively. The discharge port 201 is connected to the interior of the lower shell 203. The ball 206 is adapted to the inner wall of the limiting plate 207. The oil filling hole 109 passes through the upper end surface of the lubricating shell 104 and is connected to the interior of the oil storage tank 108.

[0034] Working principle: By setting up the operating device 1, a lubricating shell 104 is provided on the inner wall of the fixed frame 101, and the lubricating shell 104 is provided on the side wall of the screw 103, and lubricating oil is added to the lubricating shell 104 through the oil filling hole 109. As the screw 103 rotates, the lubricating oil can be evenly coated on the side wall of the screw 103, which can reduce the friction between the screw 103 and the parts when rotating, and improve the overall service life of the device. By setting up the working device 2, a positioning frame 202 is provided in the discharge port 201, and a spring 205 is provided on the positioning frame 202, and is connected to the ball 206 through the spring 205. The mutual adaptation between the ball 206 and the limit plate 207 can avoid the backflow of raw materials during the use of the device, and improve the safety of the device during use.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high-pressure angle stop valve for urea, comprising an operating device (1) and a working device (2), wherein the operating device (1) is arranged at the top of the working device (2), and is characterized in that: The operating device (1) comprises an upper shell (107), a fixing frame (101) is fixedly connected to the middle of the top of the upper shell (107), a screw (103) is rotatably connected to the middle of the inner wall of the fixing frame (101), and limiting bolts (106) are rotatably connected to both sides of the bottom end of the fixing frame (101), a fixing block (105) is fixedly connected to the bottom end of the inner wall of the fixing frame (101), and the middle of the inner wall of the fixing frame (101) is fixed. A lubricating shell (104) is connected, and an oil filling hole (109) is fixedly connected to one side of the top end of the lubricating shell (104). An oil storage tank (108) is fixedly connected to the inner wall of the fixed block (105). A lubrication port (1010) is provided on the inner wall of the oil storage tank (108) near the screw (103). A rotating handle (102) is fixedly connected to the top end of the screw (103), and a sealing plug (1011) is rotatably connected to the bottom end of the screw (103).

2. The high-pressure angle stop valve for urea according to claim 1, characterized in that: The working device (2) comprises a lower shell (203), a discharge port (201) fixedly connected to the front side of the lower shell (203), a positioning frame (202) fixedly connected to the front side of the inner wall of the discharge port (201), a spring (205) fixedly connected to the middle of the rear end of the positioning frame (202), a ball (206) fixedly connected to the other end of the spring (205), a limiting plate (207) fixedly connected to the rear side of the inner wall of the discharge port (201), a material injection port (204) fixedly connected to the bottom end of the lower shell (203), and a top end of the lower shell (203) fixedly connected to the bottom end of the upper shell (107).

3. The high-pressure angle stop valve for urea according to claim 1, characterized in that: The screw (103) passes through the upper end surface of the lubricating shell (104) and is threadedly connected to the inner wall of the fixing block (105).

4. The high-pressure angle stop valve for urea according to claim 2, characterized in that: The sealing plug (1011) is slidably connected to the inner wall of the lower shell (203), and the bottom end of the sealing plug (1011) is adapted to the top end of the inner wall of the injection port (204).

5. The high-pressure angle stop valve for urea according to claim 1, characterized in that: The two limiting bolts (106) are respectively threadedly connected to both sides of the fixing block (105).

6. The high-pressure angle stop valve for urea according to claim 2, characterized in that: The discharge port (201) is in communication with the interior of the lower shell (203).

7. The high-pressure angle stop valve for urea according to claim 2, characterized in that: The ball (206) and the inner side wall of the limiting plate (207) are adapted to each other.

8. The high-pressure angle stop valve for urea according to claim 1, characterized in that: The oil filling hole (109) passes through the upper end surface of the lubricating shell (104) and is communicated with the interior of the oil storage tank (108).

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