Chemical precision regulating valve

Abstract

The utility model relates to the field of regulating valves, in particular to a chemical precision regulating valve which comprises a regulating valve body. An anti-explosion shell used for protecting the adjusting valve body is arranged on the side wall of the upper end of the adjusting valve body, two fixing frames are fixedly connected to the side wall of the anti-explosion shell in a penetrating mode, and an axial flow fan is fixedly connected to the inner wall of one fixing frame. According to the utility model, the sealing baffle plate is drawn out from the interior of the mounting groove, and the axial flow fan is started to blow air to the interior of the explosion-proof shell, so that the explosion-proof shell can be cooled by air, the device can be used in a high-temperature environment, the sealing baffle plate is taken out from the inner wall of the mounting groove, and the air force of the axial flow fan can be blown out through the first air outlet groove and the second air outlet groove; according to the chemical regulating valve, the heat dissipation effect of the device can be improved, protection on the regulating valve body can be improved through the anti-explosion shell, and the problems that when a chemical regulating valve in the prior art is used, the anti-explosion and anti-corrosion capacity of the valve body is difficult to improve, and the heat dissipation capacity of the valve body is difficult to improve are solved.

Description

Technical Field

[0001] The utility model belongs to the field of regulating valves, and particularly relates to a chemical precision regulating valve. Background Art

[0002] Chemical precision regulating valves are widely used in modern chemical industry, petrochemical industry, electric power industry, metallurgy industry, food industry, pharmaceutical industry, etc. They are mainly used for precise regulation of parameters such as flow rate, pressure, temperature of fluid media (such as gas, liquid, steam, etc.). The regulating valve controls the valve opening to adjust the fluid passage, thereby achieving precise control of the flow state of the material inside the system.

[0003] Since the chemical process often involves media with high temperature, high pressure and strong corrosiveness, it is required that the regulating valve has high pressure resistance, corrosion resistance and wear resistance. At the same time, it is required that the valve can work stably for a long time under variable working conditions. However, when the existing chemical regulating valves are in use, it is difficult to improve the explosion-proof and corrosion-proof ability of the valve body, and it is also difficult to improve the heat dissipation ability of the valve body, which needs to be further improved.

[0004] Therefore, a chemical precision regulating valve is proposed, which can improve the explosion-proof and corrosion-proof ability of the valve body and can also improve the heat dissipation ability of the valve body. Summary of the Utility Model

[0005] In order to overcome the problems that when the existing chemical regulating valves are in use, it is difficult to improve the explosion-proof and corrosion-proof ability of the valve body and it is also difficult to improve the heat dissipation ability of the valve body, therefore, a chemical precision regulating valve is proposed.

[0006] The technical solution of the utility model is as follows: a chemical precision regulating valve, including a regulating valve body; an explosion-proof shell for protecting the regulating valve body is arranged on the upper side wall of the regulating valve body. Two fixed frames are fixedly connected to the side wall of the explosion-proof shell in a penetrating manner. An axial flow fan is fixedly connected to the inner wall of one of the fixed frames, and the air outlet end of the axial flow fan faces the center of the explosion-proof shell. An installation cylinder is installed on the upper end of the explosion-proof shell, and a gas collecting hood is fixedly connected to the upper end of the installation cylinder. Two first air outlet frames are fixedly connected to the upper part of the side wall of the explosion-proof shell in a penetrating manner, and two second air outlet frames are fixedly connected to the lower part of the side wall of the explosion-proof shell in a penetrating manner. The ends of the first air outlet frame and the second air outlet frame on the same side, which are far away from the center of the explosion-proof shell, are commonly fixedly connected with a sealing body. First air outlet grooves and second air outlet grooves are respectively formed in the two ends of the sealing body in a penetrating manner. The inner wall of the first air outlet groove is flush with the inner wall of the first air outlet frame, and the inner wall of the second air outlet groove is flush with the inner wall of the second air outlet frame. An installation groove is formed in the upper end of the sealing body, and the installation groove communicates with the first air outlet groove and the second air outlet groove. A sealing baffle is slidably arranged on the inner wall of the installation groove.

[0007] Preferably, during use, the sealing baffle is pulled out from the inside of the installation groove, and the axial flow fan is turned on to blow air into the explosion-proof housing, which can cool the explosion-proof housing by air cooling and is beneficial for the device to be used in a high-temperature environment. When the sealing baffle is taken out from the inner wall of the installation groove, the wind force of the axial flow fan will blow out through the first air outlet groove and the second air outlet groove, which can improve the heat dissipation effect of the device. Moreover, the explosion-proof housing can enhance the protection of the regulating valve body, solving the problems in the prior art that it is difficult to improve the explosion-proof and corrosion-proof capabilities of the valve body and it is also difficult to improve the heat dissipation capacity of the valve body when using a chemical regulating valve.

[0008] Preferably, a threaded barrel is fixedly connected to the lower part of the inner wall of the air collecting hood, and the outer wall of the threaded barrel is threadedly installed on the upper inner wall of the installation barrel.

[0009] Preferably, an internal threaded barrel is fixedly connected to the upper end of the air collecting hood, an installation cover is threadedly installed on the inner wall of the internal threaded barrel, and a handle is fixedly connected to the upper end of the installation cover.

[0010] Preferably, the two fixing frames are symmetric with respect to the center of the installation barrel, and the two sealing bodies are symmetric with respect to the center of the installation barrel.

[0011] Preferably, the upper end surface of the sealing baffle is higher than the upper end surface of the sealing body, and the sealing baffle is made of stainless steel.

[0012] Preferably, a protective block is fixedly connected to the middle part of the inner wall of the explosion-proof housing, a groove is formed through the upper end of the protective block, and the upper half of the regulating valve body is located inside the groove.

[0013] Preferably, two fixing disks are fixedly connected to the side wall of the regulating valve body, evenly distributed screw holes are formed through both ends of the fixing disks, two first fixing blocks are fixedly connected to the lower end of the explosion-proof housing, a second fixing block is fixedly connected to each end of the two first fixing blocks close to each other, and two threaded columns are threadedly installed through both ends of the second fixing block, and the inner wall of the threaded column is also threadedly installed on the inner wall of the screw hole.

[0014] The beneficial effects of the present utility model: By pulling out the sealing baffle from the inside of the installation groove and turning on the axial flow fan to blow air into the explosion-proof housing, the explosion-proof housing can be cooled by air cooling, which is beneficial for the device to be used in a high-temperature environment. When the sealing baffle is taken out from the inner wall of the installation groove, the wind force of the axial flow fan will blow out through the first air outlet groove and the second air outlet groove, which can improve the heat dissipation effect of the device. Moreover, the explosion-proof housing can enhance the protection of the regulating valve body, solving the problems in the prior art that it is difficult to improve the explosion-proof and corrosion-proof capabilities of the valve body and it is also difficult to improve the heat dissipation capacity of the valve body when using a chemical regulating valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Shown is a three-dimensional structural schematic diagram of the chemical precision regulating valve of the present utility model;

[0016] Figure 2 Shown is a three-dimensional exploded structural schematic diagram of the air collecting hood and the mounting cover of the chemical precision control valve of the present utility model;

[0017] Figure 3 Shown is a three-dimensional structural schematic diagram of the explosion-proof shell of the chemical precision control valve of the present utility model;

[0018] Figure 4 Shown is a three-dimensional exploded structural schematic diagram of the sealing body and the sealing baffle of the chemical precision control valve of the present utility model;

[0019] Figure 5 Shown is a three-dimensional sectional structural schematic diagram of the protective block of the chemical precision control valve of the present utility model;

[0020] Figure 6 Shown is a bottom three-dimensional structural schematic diagram of the explosion-proof shell of the chemical precision control valve of the present utility model.

[0021] The reference signs in the drawings are: 1, control valve body; 101, fixed disk; 102, screw hole; 103, threaded post; 2, explosion-proof shell; 201, first fixing block; 202, second fixing block; 3, fixing frame; 4, axial flow fan; 5, mounting cylinder; 6, air collecting hood; 601, external thread cylinder; 602, internal thread cylinder; 7, mounting cover; 8, handle; 9, first air outlet frame; 10, second air outlet frame; 11, sealing body; 12, first air outlet groove; 13, second air outlet groove; 14, mounting groove; 15, sealing baffle; 16, protective block; 17, groove body. Detailed implementation manners

[0022] The present utility model will be further described below with reference to the drawings and embodiments.

[0023] Please refer to Figures 1 - 6, this utility model provides an embodiment: a chemical precision control valve, which includes a control valve body 1; a side wall at the upper end of the control valve body 1 is provided with an explosion-proof housing 2 for protecting the control valve body 1, and two fixing frames 3 are fixedly connected through the side wall of the explosion-proof housing 2. An axial flow fan 4 is fixedly connected to the inner wall of one of the fixing frames 3, and the air outlet end of the axial flow fan 4 faces the center of the explosion-proof housing 2. An installation cylinder 5 is installed at the upper end of the explosion-proof housing 2, and a gas collection hood 6 is fixedly connected to the upper end of the installation cylinder 5. Two first air outlet frames 9 are fixedly connected through the upper part of the side wall of the explosion-proof housing 2, and two second air outlet frames 10 are fixedly connected through the lower part of the side wall of the explosion-proof housing 2. The ends of the first air outlet frame 9 and the second air outlet frame 10 on the same side away from the center of the explosion-proof housing 2 are jointly fixedly connected with a sealing body 11. First air outlet grooves 12 and second air outlet grooves 13 are respectively opened through both ends of the sealing body 11. The inner wall of the first air outlet groove 12 is flush with the inner wall of the first air outlet frame 9, and the inner wall of the second air outlet groove 13 is flush with the inner wall of the second air outlet frame 10. An installation groove 14 is opened at the upper end of the sealing body 11, and the installation groove 14 communicates with the first air outlet groove 12 and the second air outlet groove 13. A sealing baffle 15 is slidably arranged on the inner wall of the installation groove 14.

[0024] During use, pull out the sealing baffle 15 from the inside of the installation groove 14 and turn on the axial flow fan 4 to blow air into the explosion-proof housing 2, which can cool and dissipate heat from the explosion-proof housing 2 and is beneficial for the device to be used in a high-temperature environment. Take out the sealing baffle 15 from the inner wall of the installation groove 14, and the wind force of the axial flow fan 4 will blow out through the first air outlet groove 12 and the second air outlet groove 13, which can improve the heat dissipation effect of the device, and the explosion-proof housing 2 can improve the protection of the control valve body 1.

[0025] Please refer to Figure 1 and Figure 2 , in this embodiment, an external thread cylinder 601 is fixedly connected to the lower part of the inner wall of the gas collection hood 6, and the outer wall of the external thread cylinder 601 is threadedly installed on the upper end inner wall of the installation cylinder 5, which is convenient for quickly installing the external thread cylinder 601 on the upper end inner wall of the installation cylinder 5.

[0026] Please refer to Figure 1 and Figure 2 , in this embodiment, an internal thread cylinder 602 is fixedly connected to the upper end of the gas collection hood 6, and an installation cover 7 is threadedly installed on the inner wall of the internal thread cylinder 602. A handle 8 is fixedly connected to the upper end of the installation cover 7. By holding the handle 8 and rotating the installation cover 7, the installation cover 7 can be removed from the inner wall of the internal thread cylinder 602. When the installation cover 7 is removed from the inner wall of the internal thread cylinder 602, the hot air inside the explosion-proof housing 2 can flow upward through the internal thread cylinder 602, improving the heat dissipation effect of the control valve body 1.

[0027] Please refer to Figure 1 and Figure 4, in this embodiment, the two fixing frames 3 are symmetric with respect to the center of the mounting cylinder 5, and the two sealing bodies 11 are symmetric with respect to the center of the mounting cylinder 5, facilitating the hot air inside the explosion-proof housing 2 to flow out through the sealing bodies 11.

[0028] Please refer to Figure 1 and Figure 4 , in this embodiment, the upper end surface of the sealing baffle 15 is higher than the upper end surface of the sealing body 11. The sealing baffle 15 is made of stainless steel. Placing the sealing baffle 15 on the inner wall of the installation groove 14 can block the first air outlet groove 12 and the second air outlet groove 13, and at this time, the protection of the regulating valve body 1 can be improved.

[0029] Please refer to Figure 1 and Figure 5 , in this embodiment, a protection block 16 is fixedly connected to the middle of the inner wall of the explosion-proof housing 2. A groove 17 is formed through the upper end of the protection block 16. The upper half of the regulating valve body 1 is located inside the groove 17. By providing the protection block 16, the protection of the regulating valve body 1 can be improved.

[0030] Please refer to Figure 1 and Figure 6 , in this embodiment, two fixing plates 101 are fixedly connected to the side wall of the regulating valve body 1. Uniformly distributed screw holes 102 are formed through both ends of the fixing plates 101. Two first fixing blocks 201 are fixedly connected to the lower end of the explosion-proof housing 2. Second fixing blocks 202 are fixedly connected to one end of the two first fixing blocks 201 close to each other. Two threaded posts 103 are threadedly installed through both ends of the second fixing blocks 202. The inner wall of the threaded posts 103 is also threadedly installed in the inner wall of the screw holes 102. By simultaneously threadedly installing the side wall of the threaded posts 103 in the inner wall of the screw holes 102 and the wall layer of the second fixing blocks 202, the second fixing blocks 202 can be fixed on the fixing plates 101, and the quick fixation of the regulating valve body 1 and the explosion-proof housing 2 can be realized.

[0031] Working principle: First, by simultaneously threadedly installing the side wall of the threaded posts 103 in the inner wall of the screw holes 102 and the wall layer of the second fixing blocks 202, the second fixing blocks 202 can be fixed on the fixing plates 101, and the quick fixation of the regulating valve body 1 and the explosion-proof housing 2 can be realized. Then, the sealing baffle 15 is pulled out from the inside of the installation groove 14, and the axial flow fan 4 is turned on to blow air into the explosion-proof housing 2, which can cool and dissipate heat from the explosion-proof housing 2, facilitating the use of the device in a high-temperature environment;

[0032] Then, the sealing baffle 15 is taken out from the inner wall of the installation groove 14, and the wind force of the axial flow fan 4 will blow out through the first air outlet groove 12 and the second air outlet groove 13, which can improve the heat dissipation effect of the device, and the explosion-proof housing 2 can improve the protection of the regulating valve body 1;

[0033] When it is necessary to improve the heat dissipation effect of the regulating valve body 1, rotate the mounting cover 7 by holding the handle 8, remove the mounting cover 7 from the inner wall of the internal thread cylinder 602. The hot air inside the explosion-proof shell 2 can flow upward through the internal thread cylinder 602, thereby improving the heat dissipation effect of the regulating valve body 1;

[0034] In addition, by placing the sealing baffle 15 on the inner wall of the mounting groove 14, the first air outlet groove 12 and the second air outlet groove 13 can be blocked, and at this time, the protection of the regulating valve body 1 can be improved.

[0035] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the purpose of the present invention.

Claims

1. Chemical precision control valve, including a control valve body (1); characterized in that: On the upper side wall of the regulating valve body (1), there is an explosion-proof housing (2) for protecting the regulating valve body (1). Two fixing frames (3) are fixedly connected to the side wall of the explosion-proof housing (2) in a penetrating manner. An axial flow fan (4) is fixedly connected to the inner wall of one of the fixing frames (3). The air outlet end of the axial flow fan (4) faces the center of the explosion-proof housing (2). An installation cylinder (5) is installed at the upper end of the explosion-proof housing (2). A gas collecting hood (6) is fixedly connected to the upper end of the installation cylinder (5). Two first air outlet frames (9) are fixedly connected to the upper part of the side wall of the explosion-proof housing (2) in a penetrating manner. Two second air outlet frames (10) are fixedly connected to the lower part of the side wall of the explosion-proof housing (2) in a penetrating manner. The ends of the first air outlet frame (9) and the second air outlet frame (10) on the same side, which are far away from the center of the explosion-proof housing (2), are fixedly connected to a sealing body (11). The two ends of the sealing body (11) are provided with a first air outlet groove (12) and a second air outlet groove (13) in a penetrating manner. The inner wall of the first air outlet groove (12) is flush with the inner wall of the first air outlet frame (9). The inner wall of the second air outlet groove (13) is flush with the inner wall of the second air outlet frame (10). An installation groove (14) is opened at the upper end of the sealing body (11). The installation groove (14) communicates with the first air outlet groove (12). The installation groove (14) communicates with the second air outlet groove (13). A sealing baffle (15) is slidably arranged on the inner wall of the installation groove (14).

2. The chemical precision regulating valve according to claim 1, wherein: At the lower part of the inner wall of the gas collecting hood (6), there is an external thread cylinder (601). The outer wall of the external thread cylinder (601) is threadedly installed on the upper end inner wall of the installation cylinder (5).

3. The chemical precision control valve according to claim 1, characterized in that: An internal thread cylinder (602) is fixedly connected to the upper end of the gas collecting hood (6). An installation cover (7) is threadedly installed on the inner wall of the internal thread cylinder (602). A handle (8) is fixedly connected to the upper end of the installation cover (7).

4. The chemical precision control valve according to claim 1, wherein: The two fixing frames (3) are symmetric with each other about the center of the installation cylinder (5). The two sealing bodies (11) are symmetric with each other about the center of the installation cylinder (5).

5. The chemical precision control valve according to claim 1, characterized in that: The upper end face of the sealing baffle (15) is higher than the upper end face of the sealing body (11). The sealing baffle (15) is made of stainless steel.

6. The chemical precision control valve according to claim 1, wherein: In the middle of the inner wall of the explosion-proof housing (2), there is a protective block (16). A groove body (17) is opened at the upper end of the protective block (16). The upper half of the regulating valve body (1) is located inside the groove body (17).

7. The chemical precision regulating valve according to claim 1, characterized in that: Two fixing disks (101) are fixedly connected to the side wall of the regulating valve body (1). Uniformly distributed screw holes (102) are opened at both ends of the fixing disks (101). Two first fixing blocks (201) are fixedly connected to the lower end of the explosion-proof housing (2). At one end of the two first fixing blocks (201) close to each other, there is a second fixing block (202) fixedly connected. Two threaded columns (103) are threadedly installed through both ends of the second fixing block (202). The inner wall of the threaded column (103) is also threadedly installed on the inner wall of the screw hole (102).

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