Spiral preheating device for pyrazolone raw material liquid

Abstract

The invention relates to the technical field of spiral preheating devices, in particular to a spiral preheating device for pyrazolone raw material liquid. According to the technical scheme, the heat exchanger comprises a tank body, a plurality of sets of spiral heat exchange pipes are installed in the tank body, a hot water inlet and a hot water outlet which are communicated with the spiral heat exchange pipes are formed in the tank body, a liquid inlet and a liquid outlet are formed in the tank body, and the heat exchanger further comprises an exhaust component installed on the tank body. Through mutual cooperation of the detection assembly and the blocking mechanism, it can be guaranteed that the liquid outlet is opened after gas in the tank body is completely exhausted, then bubbles can be effectively prevented from appearing in pyrazolone raw material liquid, and the situation that the bubbles hinder heat transfer, and consequently the heating efficiency is reduced can be effectively prevented. And non-uniform temperature distribution in the liquid due to the existence of bubbles is avoided. The liquid heating device is suitable for heating liquid, and is particularly suitable for heating pyrazolone raw material liquid.

Description

Technical Field

[0001] The invention relates to the technical field of spiral preheating devices, in particular to a spiral preheating device for pyrazolone raw material liquid. Background Art

[0002] Pyrazolone is an organic compound belonging to the pyrazolones class and has a wide range of uses in the synthesis of medicines, pesticides, dyes and other fine chemical products. Pyrazolone raw material liquid generally refers to the liquid form containing pyrazolone compounds. In order to accelerate the chemical reaction rate of pyrazolone, the pyrazolone raw material liquid needs to be preheated, generally by a spiral preheating device. The spiral preheating device generally includes a spiral coil, which is the core part of the preheating device. The raw material liquid flows outside the spiral pipe, and the heat source flows inside the spiral pipe. The pyrazolone raw material liquid achieves the heating purpose by heat exchange with the heat source inside the spiral coil.

[0003] During heating, the raw material liquid is transported into the preheating device through the pump body. At this time, there is air inside the preheating device. The gas will form bubbles inside the raw material liquid entering the preheating device, which will hinder the transfer of heat and cause the heating efficiency to decrease. The presence of bubbles will cause uneven temperature distribution inside the liquid, and some areas may not be heated enough due to the insulation effect of the bubbles. In addition, the bubbles may expand or burst, causing pressure fluctuations in the system, which may pose a threat to the safe operation of the equipment. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the background technology and to provide a spiral preheating device for pyrazolone raw material liquid.

[0005] The technical solution of the present invention is: a spiral preheating device for pyrazolone raw material liquid, comprising a tank body, a plurality of spiral heat exchange tubes are installed in the tank body, a hot water inlet and a hot water outlet are provided on the tank body which are connected with the spiral heat exchange tubes, a liquid inlet and a liquid outlet are provided on the tank body, and further comprising: An exhaust component is installed on the tank body, and the exhaust component includes an exhaust cavity fixedly installed on the tank body and connected to the tank body. A detection component for detecting the liquid level height in the tank body is installed in the exhaust cavity. The exhaust component also includes a sealing mechanism, and the sealing mechanism controls the sealing state of the liquid outlet according to the liquid level height in the tank body.

[0006] Optionally, the detection component includes a connection box fixedly mounted on the exhaust chamber, a plurality of exhaust holes are provided at the bottom of the connection box, a first push rod is slidably mounted in the connection box, a floating plate is fixedly mounted on the first push rod, and a drainage block is fixedly mounted on the floating plate.

[0007] Optionally, a one-way valve is fixedly installed on the connection box, and an electric-controlled valve is fixedly installed on the connection box.

[0008] Optionally, the sealing mechanism includes a first oil barrel fixedly installed in the connecting box, a first sealing block movably installed in the first oil barrel, the first sealing block is fixedly connected to the first push rod, and the first push rod passes through the first oil barrel and the bottom of the connecting box and is fixedly connected to the floating plate.

[0009] Optionally, the sealing mechanism also includes a valve body fixedly mounted on the liquid outlet, a valve core is slidably mounted in the valve body, a connecting seat is fixedly mounted on the valve body, a second oil barrel is fixedly mounted on the connecting seat, a second sealing block is slidably mounted in the second oil barrel, a second push rod is fixedly mounted on the second sealing block, a connecting rod is fixedly mounted on the second push rod, and the connecting rod is fixedly connected to the valve core.

[0010] Optionally, the first oil barrel and the second oil barrel are both filled with hydraulic oil, the end of the first oil barrel away from the floating plate is connected to the first oil pipe, the other end of the first oil barrel is connected to the second oil pipe, the other end of the first oil pipe is connected to the side of the second oil barrel close to the valve core, and the other end of the second oil pipe is connected to the end of the second oil barrel away from the valve core.

[0011] Optionally, the inner diameter of the second oil barrel is greater than the inner diameter of the first oil barrel, the valve core is rectangular, and the connecting rod is fixedly connected to the long side of the valve core.

[0012] Optionally, a push rod motor is fixedly mounted on the valve body, and an output shaft of the push rod motor is located on one side of the connecting rod.

[0013] Optionally, a water inlet pipe is fixedly installed on one side of the exhaust chamber near the liquid inlet, and a water outlet pipe is fixedly installed on one side of the exhaust chamber near the liquid outlet, a vortex blade is rotatably installed in the water inlet pipe, a first bevel gear is coaxially fixedly installed on the vortex blade, a second bevel gear is rotatably installed on the water inlet pipe, the first bevel gear and the second bevel gear are meshed with each other, a first motor is fixedly installed on the tank body, a first transmission shaft is fixedly installed on the output shaft of the first motor, and the first transmission shaft is coaxially fixedly connected to the second bevel gear.

[0014] Optionally, a vibration mechanism is installed on the tank body, and the vibration mechanism includes a second transmission shaft rotatably installed on the tank body, eccentric blocks are fixedly installed at both ends of the second transmission shaft, a first gear is fixedly installed on the second transmission shaft, a second gear is rotatably installed on the tank body, the first gear and the second gear are meshed with each other, a second motor is fixedly installed on the tank body, and the output shaft of the second motor is coaxially fixedly connected with the second gear, shock-absorbing rings are fixedly installed on both sides of the tank body, and a support is fixedly installed on the shock-absorbing rings.

[0015] In summary, the present application includes at least one of the following beneficial technical effects: The present invention can ensure that the liquid outlet is opened after the gas inside the tank body is completely discharged through the mutual cooperation of the detection component and the sealing mechanism, thereby effectively preventing bubbles from appearing inside the pyrazolone raw material liquid, effectively preventing bubbles from hindering the transfer of heat, resulting in a decrease in heating efficiency, and avoiding the problem of uneven temperature distribution inside the liquid due to the presence of bubbles. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure inside a spiral preheating device for pyrazolone raw material liquid of the present invention; Figure 2 is a structural schematic diagram of the support; Figure 3 The schematic diagram of the structure and position of the spiral heat exchange tube; Figure 4 It is a schematic diagram of the structure of the detection component; Figure 5 It is a schematic diagram of the structure inside the connection box; Figure 6 The structure of the blocking mechanism is shown in FIG. Figure 1 ; Figure 7 The structure of the blocking mechanism is shown in FIG. Figure 2 ; Figure 8 It is a schematic diagram of the structure of the vortex blade in the present invention; Fig. 9 It is a structural diagram of the vibration mechanism.

[0017] Reference numerals: 1, tank body; 101, spiral heat exchange tube; 102, hot water inlet; 103, hot water outlet; 104, liquid inlet; 105, liquid outlet; 2, exhaust chamber; 201, connection box; 202, exhaust hole; 203, one-way valve; 204, electric control valve; 205, first oil drum; 206, first blocking block; 207, first push rod; 208, floating plate; 209, drainage block; 210, valve body; 211, valve core; 212, connection seat; 213, second oil drum; 214, second blocking block; 215, second push rod; 216, connecting rod; 217, first oil pipe; 218, second oil pipe; 3, push rod motor; 4, water inlet pipe; 401, water outlet pipe; 402, vortex blade; 403, first bevel gear; 404, second bevel gear; 405, first transmission shaft; 406, first motor; 5, second transmission shaft; 501, eccentric block; 502, first gear; 503, second gear; 504, second motor; 6, support; 601, shock-absorbing ring. DETAILED DESCRIPTION

[0018] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0019] like Figures 1 to 9 As shown, a spiral preheating device for pyrazolone raw material liquid proposed by the present invention comprises a tank body 1, in which a plurality of groups of spiral heat exchange tubes 101 are installed, and a hot water inlet 102 and a hot water outlet 103 connected with the spiral heat exchange tubes 101 are provided on the tank body 1, and hot water is transported into the interior of the spiral heat exchange tubes 101 through the hot water inlet 102, and the hot water is discharged from the interior of the spiral heat exchange tubes 101 through the hot water outlet 103, and the plurality of groups of spiral heat exchange tubes 101 are mutually nested, and the spiral directions of two adjacent groups of spiral heat exchange tubes 101 are opposite, so that when the pyrazolone raw material liquid flows in the tank body 1, it can be affected by the spiral heat exchange tubes 101 to generate turbulence, so that the pyrazolone raw material liquid can contact the spiral heat exchange tubes 101 more evenly. The tank body 1 is provided with a liquid inlet 104 and a liquid outlet 105 . The pyrazolone raw material liquid enters the tank body 1 through the liquid inlet 104 , contacts the spiral heat exchange tube 101 , and exchanges heat. After the heat exchange is completed, the pyrazolone raw material liquid is discharged through the liquid outlet 105 .

[0020] The present embodiment also includes an exhaust component installed on the tank body 1, the exhaust component includes an exhaust chamber 2 fixedly installed on the tank body 1 and connected to the tank body 1, a detection component for detecting the liquid level in the tank body 1 is installed in the exhaust chamber 2, and the exhaust component also includes a blocking mechanism, and the blocking mechanism controls the blocking state of the liquid outlet 105 according to the liquid level in the tank body 1. When the pyrazolone raw material liquid gradually enters the inside of the tank body 1, because the liquid outlet 105 is in a blocked state, the pyrazolone raw material liquid will accumulate inside the tank body 1 at this time, and the pyrazolone raw material liquid will gradually squeeze the gas inside the tank body 1 at this time, and the gas will be discharged through the exhaust chamber 2, and then the liquid outlet 105 can be opened by the mutual cooperation of the detection component and the blocking mechanism, so that the pyrazolone raw material liquid after the heat exchange is completed is discharged, and then the pyrazolone raw material liquid can be effectively prevented from appearing bubbles inside, and the bubbles can be effectively prevented from hindering the transfer of heat, resulting in a decrease in heating efficiency. Avoid the uneven distribution of temperature inside the liquid due to the presence of bubbles.

[0021] Furthermore, the detection assembly includes a connection box 201 fixedly mounted on the exhaust chamber 2, a plurality of exhaust holes 202 are provided at the bottom of the connection box 201, a first push rod 207 is slidably mounted in the connection box 201, a floating plate 208 is fixedly mounted on the first push rod 207, and a drainage block 209 is fixedly mounted on the floating plate 208. When the liquid level of the pyrazolone raw material liquid inside the tank body 1 gradually rises, the pyrazolone raw material liquid will contact the drainage block 209 and the floating plate 208, and the floating plate 208 will float above the pyrazolone raw material liquid under the action of buoyancy, and rise as the liquid level of the pyrazolone raw material liquid rises, thereby driving the first push rod 207 to move.

[0022] Among them, the sealing mechanism includes a first oil barrel 205 fixedly installed in the connecting box 201, a first sealing block 206 is movably installed in the first oil barrel 205, the first sealing block 206 is fixedly connected to the first push rod 207, and the first push rod 207 passes through the first oil barrel 205 and the bottom of the connecting box 201 and is fixedly connected to the floating plate 208. The moving first push rod 207 will drive the first blocking block 206 to move, and then the position of the first blocking block 206 will change when the liquid level of the pyrazolone raw material liquid changes. The blocking mechanism also includes a valve body 210 fixedly installed on the liquid outlet 105, a valve core 211 is slidably installed in the valve body 210, a connecting seat 212 is fixedly installed on the valve body 210, a second oil barrel 213 is fixedly installed on the connecting seat 212, a second blocking block 214 is slidably installed in the second oil barrel 213, a second push rod 215 is fixedly installed on the second blocking block 214, a connecting rod 216 is fixedly installed on the second push rod 215, and the connecting rod 216 is fixedly connected to the valve core 211. When the second blocking block 214 moves, the moving second blocking block 214 will drive the second push rod 215 to move, and the moving second push rod 215 will drive the valve core 211 to move through the connecting rod 216. By moving the valve core 211, the blocking state of the valve body 210 can be controlled, and then the blocking state of the liquid outlet 105 can be controlled.

[0023] Furthermore, the first oil barrel 205 and the second oil barrel 213 are both filled with hydraulic oil, the end of the first oil barrel 205 away from the floating plate 208 is connected to the first oil pipe 217, the other end of the first oil barrel 205 is connected to the second oil pipe 218, the other end of the first oil pipe 217 is connected to the side of the second oil barrel 213 close to the valve core 211, and the other end of the second oil pipe 218 is connected to the end of the second oil barrel 213 away from the valve core 211. By setting the first oil pipe 217 and the second oil pipe 218 and the hydraulic oil, the second blocking block can be dragged to move when the first blocking block 206 moves. When the liquid level of the pyrazolone raw material liquid rises, the first blocking block 206 will be pushed to rise. The rising first blocking block 206 will squeeze the hydraulic oil above the first blocking block 206 into the second oil barrel 213. The hydraulic oil entering the second oil barrel 213 will squeeze the second blocking block 214, which can push the second blocking block 214 to move away from the valve core 211, and then drive the valve core 211 to move, so that the liquid outlet 105 can be connected to discharge the pyrazolone raw material liquid, which can effectively ensure that the gas inside the tank body 1 is completely compressed into the exhaust chamber 2, and the gas will not form bubbles in the pyrazolone raw material liquid. Only then will the liquid outlet 105 be opened, thereby ensuring the stability of the pyrazolone raw material liquid during heat exchange.

[0024] Moreover, the effective flow area of ​​the liquid outlet 105 depends on the liquid level of the pyrazolone raw material liquid, so that the liquid inlet speed and the liquid outlet speed of the pyrazolone raw material liquid can be kept consistent, thereby ensuring that the volume of the pyrazolone raw material liquid in the tank body 1 is always in a constant state, which will make the residence time of the pyrazolone raw material liquid in the tank body always equal, because: the residence time depends on the volume of the tank body (V) and the flow rate of the inlet and outlet liquid (Q), which can be expressed by the following formula: residence time = V / Q.

[0025] Therefore, as long as the volume and flow rate of the tank remain unchanged, the residence time of the liquid in the tank will also remain unchanged. Therefore, no matter how the flow rates of the liquid inlet and the liquid outlet change (as long as they always remain equal), the residence time of the liquid in the tank is relatively stable, which can effectively prevent the temperature of the pyrazolone raw material liquid from exceeding the required temperature due to long-term heating, which may cause the raw material to decompose or cause undesirable side reactions. And prevent the residence time of the pyrazolone raw material liquid from being too short, and the raw material liquid may not reach the temperature required for the reaction, which will reduce the reaction rate or cause incomplete reaction problems.

[0026] It is worth noting that the inner diameter of the second oil barrel 213 is larger than that of the first oil barrel 205, the valve core 211 is rectangular, and the connecting rod 216 is fixedly connected to the long side of the valve core 211. Since the second blocking block 214 needs to drive the valve core 211 to move, the second blocking block 214 needs to output a larger force, which requires the floating plate 208 to be subjected to a larger buoyancy. However, for the sake of lightweight design, the floating plate 208 cannot be designed to be larger, so the size of the buoyancy has a certain limit. However, since the output force of the second oil barrel 213 is equal to the pressure multiplied by the area of ​​the second blocking block (F = P * A), since the pressure in the first oil barrel 205 and the second blocking block 214 is equal, but the inner diameter of the second oil barrel 213 is larger than that of the first oil barrel 205, the force output by the second blocking block 214 will also increase. At the same time, this will also reduce the stroke of the second blocking block 214, so through the rectangular design of the valve core 211, it can be ensured that the valve body 210 can maintain a larger opening and closing degree.

[0027] In the present embodiment, a push rod motor 3 is fixedly mounted on the valve body 210, and the output shaft of the push rod motor 3 is located on one side of the connecting rod 216. When the pyrazolone raw material liquid is stopped from being transported in the tank body 1, the liquid level of the pyrazolone raw material liquid will gradually decrease, which will cause the liquid outlet 105 to be gradually closed, and the pyrazolone raw material liquid inside the tank body 1 cannot be completely discharged at this time, and the connecting rod 216 can be pushed by the push rod motor 3 to open the liquid outlet 105, and the pyrazolone raw material liquid remaining inside the tank body 1 is discharged. It should be noted that a check valve 203 is fixedly mounted on the connecting box 201, and an electric control valve 204 is fixedly mounted on the connecting box 201. The check valve 203 can make gas be discharged from the inside of the tank body 1 to the outside, and when the pyrazolone raw material liquid inside the tank body 1 is completely discharged, it is necessary to open the electric control valve 204, and the external gas can enter the inside of the tank body 1 through the electric control valve 204, and the pyrazolone raw material liquid in the tank body 1 can be completely discharged under the action of air pressure.

[0028] In this embodiment, a water inlet pipe 4 is fixedly installed on one side of the exhaust chamber 2 close to the liquid inlet 104, a water outlet pipe 401 is fixedly installed on one side of the exhaust chamber 2 close to the liquid outlet 105, a vortex blade 402 is rotatably installed in the water inlet pipe 4, a first bevel gear 403 is coaxially fixedly installed on the vortex blade 402, a second bevel gear 404 is rotatably installed on the water inlet pipe 4, the first bevel gear 403 and the second bevel gear 404 are meshed with each other, a first motor 406 is fixedly installed on the tank body 1, a first transmission shaft 405 is fixedly installed on the output shaft of the first motor 406, and the first transmission shaft 405 is coaxially fixedly connected with the second bevel gear 404. Since the exhaust chamber 2 is higher than the tank body 1, the raw material liquid inside the exhaust chamber 2 cannot flow effectively. The second bevel gear 404 is driven to rotate by the first motor 406, and the vortex blade 402 is driven to rotate through the transmission of the first bevel gear 403, so that the pyrazolone raw material liquid can enter the water inlet pipe 4 and enter the exhaust chamber 2, and be discharged through the water outlet pipe 401, so that the pyrazolone raw material liquid inside the exhaust chamber 2 can flow effectively, and the other end of the water outlet pipe 401 can be connected to the bottom of the tank body 1 and located directly below the end of the water inlet pipe 4 close to the liquid inlet 104, so that the pyrazolone raw material liquid passing through the exhaust chamber 2 can be heated again to avoid the liquid temperature of the pyrazolone raw material liquid failing to reach a predetermined temperature.

[0029] Furthermore, a vibration mechanism is installed on the tank body 1, and the vibration mechanism includes a second transmission shaft 5 rotatably installed on the tank body 1, eccentric blocks 501 are fixedly installed at both ends of the second transmission shaft 5, a first gear 502 is fixedly installed on the second transmission shaft 5, a second gear 503 is rotatably installed on the tank body 1, the first gear 502 and the second gear 503 are meshed with each other, a second motor 504 is fixedly installed on the tank body 1, and the output shaft of the second motor 504 is coaxially fixedly connected with the second gear 503. When the pyrazolone raw material liquid is transported into the tank body 1, the second transmission shaft 5 is driven to rotate by the second motor 504, which can then drive the eccentric block 501 to rotate, the rotating eccentric block 501 will vibrate, and then drive the tank body 1 to vibrate slightly, which can assist the exhaust process inside the tank body 1. When the tank body 1 is exhausted, the second motor 504 can be turned off.

[0030] Furthermore, shock absorbing rings 601 are fixedly installed on both sides of the tank body 1, and a support 6 is fixedly installed on the shock absorbing ring 601. The tank body 1 is supported by the support 6, and the shock absorbing ring 601 can make the tank body 1 vibrate with a small amplitude.

[0031] The working principle of this embodiment is as follows: the pyrazolone raw material liquid enters the tank body 1 through the liquid inlet 104, contacts with the spiral heat exchange tube 101, and performs heat exchange. After the heat exchange is completed, the pyrazolone raw material liquid will be discharged through the liquid outlet 105. When the pyrazolone raw material liquid gradually enters the tank body 1, since the liquid outlet 105 is in a blocked state, the pyrazolone raw material liquid will accumulate inside the tank body 1. At this time, the pyrazolone raw material liquid will gradually squeeze the gas inside the tank body 1, and the gas will be discharged through the exhaust chamber 2. When the liquid level of the pyrazolone raw material liquid inside the tank body 1 gradually rises, the pyrazolone raw material liquid will contact with the drainage block 209 and the floating plate 208. Under the action of buoyancy, the floating plate 208 will float above the pyrazolone raw material liquid. When the liquid level of the pyrazolone raw material liquid rises, it will push the first blocking block 206 to rise. The rising first blocking block 206 will The hydraulic oil above the first blocking block 206 will be squeezed into the second oil barrel 213. The hydraulic oil entering the second oil barrel 213 will squeeze the second blocking block 214, which can push the second blocking block 214 to move away from the valve core 211, thereby driving the valve core 211 to move, and then the liquid outlet 105 can be connected to discharge the pyrazolone raw material liquid. This can effectively ensure that the liquid outlet 105 will be opened only when the gas inside the tank body 1 is completely compressed into the exhaust chamber 2 and no bubbles are formed in the pyrazolone raw material liquid, thereby ensuring the stability of the pyrazolone raw material liquid during heat exchange.

[0032] The above specific embodiments are only several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A spiral preheating device for pyrazolone raw material liquid, comprising a tank body (1), wherein a plurality of groups of spiral heat exchange tubes (101) are installed in the tank body (1), a hot water inlet (102) and a hot water outlet (103) connected to the spiral heat exchange tubes (101) are provided on the tank body (1), and a liquid inlet (104) and a liquid outlet (105) are provided on the tank body (1), characterized in that: Also includes: An exhaust component mounted on a tank body (1), the exhaust component comprising an exhaust chamber (2) fixedly mounted on the tank body (1) and in communication with the tank body (1), a detection component for detecting the height of a liquid level in the tank body (1) being mounted in the exhaust chamber (2), the exhaust component further comprising a blocking mechanism, the blocking mechanism controlling the blocking state of the liquid outlet (105) according to the height of the liquid level in the tank body (1).

2. The spiral preheating device for pyrazolone raw material liquid according to claim 1, characterized in that: The detection assembly comprises a connection box (201) fixedly mounted on the exhaust chamber (2), a plurality of exhaust holes (202) being provided at the bottom of the connection box (201), a first push rod (207) being slidably mounted in the connection box (201), a floating plate (208) being fixedly mounted on the first push rod (207), and a drainage block (209) being fixedly mounted on the floating plate (208).

3. The spiral preheating device for pyrazolone raw material liquid according to claim 2, characterized in that: A one-way valve (203) is fixedly mounted on the connection box (201), and an electric control valve (204) is fixedly mounted on the connection box (201).

4. The spiral preheating device for pyrazolone raw material liquid according to claim 2, characterized in that: The blocking mechanism comprises a first oil barrel (205) fixedly installed in the connection box (201), a first blocking block (206) movably installed in the first oil barrel (205), the first blocking block (206) being fixedly connected to the first push rod (207), and the first push rod (207) passing through the first oil barrel (205) and the bottom of the connection box (201) and being fixedly connected to the floating plate (208).

5. The spiral preheating device for pyrazolone raw material liquid according to claim 4, characterized in that: The blocking mechanism further comprises a valve body (210) fixedly mounted on the liquid outlet (105), a valve core (211) being slidably mounted in the valve body (210), a connecting seat (212) being fixedly mounted on the valve body (210), a second oil barrel (213) being fixedly mounted on the connecting seat (212), a second blocking block (214) being slidably mounted in the second oil barrel (213), a second push rod (215) being fixedly mounted on the second blocking block (214), a connecting rod (216) being fixedly mounted on the second push rod (215), and the connecting rod (216) being fixedly connected to the valve core (211).

6. The spiral preheating device for pyrazolone raw material liquid according to claim 4, characterized in that: The first oil barrel (205) and the second oil barrel (213) are both filled with hydraulic oil. One end of the first oil barrel (205) away from the floating plate (208) is connected to a first oil pipe (217), and the other end of the first oil barrel (205) is connected to a second oil pipe (218). The other end of the first oil pipe (217) is connected to a side of the second oil barrel (213) close to the valve core (211), and the other end of the second oil pipe (218) is connected to an end of the second oil barrel (213) away from the valve core (211).

7. The spiral preheating device for pyrazolone raw material liquid according to claim 6, characterized in that: The inner diameter of the second oil barrel (213) is greater than the inner diameter of the first oil barrel (205); the valve core (211) is rectangular; and the connecting rod (216) is fixedly connected to the long side of the valve core (211).

8. The spiral preheating device for pyrazolone raw material liquid according to claim 6, characterized in that: A push rod motor (3) is fixedly mounted on the valve body (210), and an output shaft of the push rod motor (3) is located on one side of the connecting rod (216).

9. The spiral preheating device for pyrazolone raw material liquid according to claim 2, characterized in that: A water inlet pipe (4) is fixedly mounted on one side of the exhaust chamber (2) close to the liquid inlet (104), a water outlet pipe (401) is fixedly mounted on one side of the exhaust chamber (2) close to the liquid outlet (105), a vortex blade (402) is rotatably mounted in the water inlet pipe (4), a first bevel gear (403) is coaxially fixedly mounted on the vortex blade (402), a second bevel gear (404) is rotatably mounted on the water inlet pipe (4), the first bevel gear (403) and the second bevel gear (404) are meshed with each other, a first motor (406) is fixedly mounted on the tank body (1), a first transmission shaft (405) is fixedly mounted on the output shaft of the first motor (406), and the first transmission shaft (405) and the second bevel gear (404) are coaxially fixedly connected.

10. The spiral preheating device for pyrazolone raw material liquid according to claim 1, characterized in that: The tank body (1) is provided with a vibration mechanism, the vibration mechanism comprising a second transmission shaft (5) rotatably mounted on the tank body (1), eccentric blocks (501) being fixedly mounted on both ends of the second transmission shaft (5), a first gear (502) being fixedly mounted on the second transmission shaft (5), a second gear (503) being rotatably mounted on the tank body (1), the first gear (502) and the second gear (503) being meshed with each other, a second motor (504) being fixedly mounted on the tank body (1), an output shaft of the second motor (504) being coaxially fixedly connected to the second gear (503), shock absorbing rings (601) being fixedly mounted on both sides of the tank body (1), and a support (6) being fixedly mounted on the shock absorbing ring (601).

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