Automatic temperature control device for water layer collection kettle

Abstract

The utility model discloses a water layer collection kettle temperature self-control device, including: collection kettle main part, storage box, the storage box is located the collection kettle main part outside, the storage box includes feed pipe, discharge pipe, cooling subassembly no. 1 and cooling subassembly no. 2, cooling subassembly no. 1, cooling subassembly no. 2, cooling subassembly no. The first inner coil pipe and the second inner coil pipe are both located in the collecting kettle body, inlets of the first inner coil pipe and the second inner coil pipe are connected with the discharging pipe through a first connecting assembly and a second connecting assembly respectively, and outlets of the first inner coil pipe and the second inner coil pipe extend out of the collecting kettle body. The second inner coil pipe surrounds the outer part of the second inner coil pipe, the overall height of the second inner coil pipe is half of that of the first inner coil pipe, and the inner coil pipe which is arranged at the central position of the kettle body and is used for introducing frozen saline water is additionally arranged, so that the situation that a part below the kettle body cannot be cooled more effectively is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of temperature control of a collection kettle, and in particular to a temperature automatic control device for a water layer collection kettle. Background Art

[0002] Currently, existing temperature control systems for water layer collection kettles typically use an internal coil to cool the water layer by passing chilled brine through it. The basic principle of this cooling method is that chilled brine circulates through the internal coil inside the reactor, absorbing and removing heat from the water layer within the reactor, thereby achieving the desired temperature reduction.

[0003] After searching, it was found that the Chinese utility model patent with authorization announcement number CN202506365U discloses a temperature control device for a high-pressure reactor. The patent adopts a dual heat exchange system of an outer jacket plus an inner coil and a dual heat exchange medium technology of steam plus chilled brine, which can improve the stirring effect, temperature uniformity, reaction product selectivity and yield, reduce production costs, and at the same time improve the safety of high-pressure reaction operations and control the reaction temperature within 2 degrees; however, the patent adopts a separate inner coil setting, which causes the chilled brine to flow from top to bottom. This flow mode makes the cooling effect not uniform enough. Due to factors such as the layout, length and orientation of the inner coil, the water layer in some areas may be over-cooled, while other areas may be under-cooled. This uneven cooling phenomenon will not only affect the temperature uniformity of the material in the reactor, but also affect the selectivity and yield of the reaction product. The stirring system alone cannot effectively solve this problem. Utility Model Content

[0004] The technical problem to be solved by the present invention is to overcome the defects in the prior art by additionally arranging an inner coil located at the center of the kettle body for introducing refrigerated brine, thereby avoiding the inability of the lower part of the kettle body to be cooled more effectively.

[0005] In order to solve the above technical problems, the technical solution of the utility model is a temperature automatic control device for a water layer collection kettle, comprising:

[0006] Collecting kettle body;

[0007] A storage box, the storage box is located outside the collecting kettle body, the storage box includes a feed pipe and a discharge pipe; a cooling component 1 and a cooling component 2, the cooling component 1 includes an inner coil 1, and the cooling component 2 includes an inner coil 2;

[0008] The inner coil pipe 1 and the inner coil pipe 2 are both located in the collecting kettle body, the inlet of the inner coil pipe 1 is connected to the discharge pipe via a connecting component 1, the inlet of the inner coil pipe 2 is connected to the discharge pipe via a connecting component 2, and the outlets of the inner coil pipe 1 and the inner coil pipe 2 both extend out of the collecting kettle body;

[0009] The inner coil pipe 2 surrounds the outside of the inner coil pipe 2, and the overall height of the inner coil pipe 2 is half of the inner coil pipe 1;

[0010] A temperature sensor is located inside the collection kettle body. The connecting component 1 includes channel 1 and channel 2. An electrically controlled valve is provided in channel 1. The temperature sensor is suitable for transmitting a signal to a controller to control the switch of the electrically controlled valve.

[0011] Furthermore, the temperature automatic control device of the water layer collecting kettle further comprises a stirring assembly, wherein the stirring assembly comprises a driving device 1 and a stirring rod;

[0012] The driving device 1 is located outside the collecting kettle body, the stirring rod is located inside the collecting kettle body, and the stirring rod is located at the axis of the inner coil 1 and the inner coil 2;

[0013] The driving device is connected to the stirring rod and is suitable for driving the stirring rod to rotate in the collecting kettle body.

[0014] Furthermore, the cooling component 2 further includes a channel 3, and both the channel 3 and the channel 2 are provided with a control component, and the collecting kettle body is provided with a drainage component corresponding to the control component;

[0015] The drainage component includes a drainage tube, and the control component includes a temperature sensing package, wherein the temperature sensing package is located on the outer peripheral surface of the drainage tube;

[0016] The temperature sensing package is suitable for sensing the temperature in the drainage tube to control the switches of the cooling component 1 and the cooling component 2.

[0017] Furthermore, the control assembly further comprises a housing, a diaphragm, a valve core, a shrink sleeve and a capillary copper tube;

[0018] The interior of the housing is provided with a storage cavity, a sliding cavity, a switch channel, a liquid inlet channel and a liquid outlet channel;

[0019] The two ends of the capillary copper tube are respectively connected to the storage cavity and the temperature-sensing package, the temperature-sensing package is provided with a refrigerant, and the switch channel is communicated with the liquid inlet channel and the liquid outlet channel;

[0020] The diaphragm is arranged inside the storage cavity, the valve core is slidably connected to the inside of the sliding cavity, the valve core is connected to the bottom of the diaphragm, and the diaphragm is suitable for being squeezed and bent by the refrigerant in the temperature-sensing package to push the valve core to move longitudinally in the sliding cavity;

[0021] The shrink sleeve is slidably connected in the switch channel, and a switch protrusion is provided on the top of the shrink sleeve, and the switch protrusion is suitable for being squeezed by the valve core and then exiting the switch channel;

[0022] The liquid inlet channel is connected to the inlets of the corresponding inner coil pipe 1 and the inner coil pipe 2, and the liquid outlet channel is connected to the discharge pipe.

[0023] Furthermore, the drainage component also includes a protective shell, which is connected to the outer peripheral surface of the collection kettle body, the drainage tube is located inside the protective shell, and the capillary copper tube passes through the inside of the protective shell.

[0024] Furthermore, a heat conducting plate is provided between the temperature sensing package and the drainage tube.

[0025] Furthermore, a processing assembly is provided in the storage box, and the processing assembly includes a second driving device and a stirring blade;

[0026] The second driving device is located outside the storage box, and the stirring blade is located inside the storage box. The second driving device is suitable for driving the stirring blade to rotate in the storage box.

[0027] By adopting the above technical solution, the utility model has the following beneficial effects:

[0028] 1. Through the arrangement of inner coil 1 and inner coil 2, the chilled brine in inner coil 1 passes through the interior of the entire collection kettle body from top to bottom. After inner coil 2 enters from the middle of the collection kettle body, it mainly cools the lower half of the collection kettle body, thus avoiding the problem of uneven temperature inside the collection kettle.

[0029] 2. Through the setting of the control component and the drainage component, the drainage pipe in the drainage component will lead part of the water in the collection kettle body into it, and then the temperature of this part of the water will be monitored through the temperature sensing package in the control component. When the temperature is higher than the threshold, the capillary copper tube will lead the refrigerant in the temperature sensing package into the storage chamber and squeeze the diaphragm to drive the valve core to move and open the switch channel, so that the inner coil 1 and the inner coil 2 start to circulate the chilled brine.

[0030] 3. Through the setting of the protective shell and the heat conduction plate, the protective shell protects the water in the drainage pipe and isolates it from the influence of the external temperature. The heat conduction plate can better affect the temperature of the water in the drainage pipe on the temperature sensing package, making the response speed of the control component more sensitive.

[0031] 4. Through the setting of the stirring blades, the frozen brine stored in the storage box will produce precipitation and crystallization. When this phenomenon occurs, it will lead to poor circulation and the cooling effect will be reduced. After being driven to rotate, the stirring blades can drive the frozen brine to continuously stir to avoid precipitation and crystallization, further ensuring the temperature control effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0033] Figure 2 This is a schematic diagram of the internal structure of the collection kettle body of the present utility model;

[0034] Figure 3 This is a schematic diagram of the internal structure of the storage box of the present utility model;

[0035] Figure 4 This is a schematic diagram of the positions of the control components and drainage components of the present invention;

[0036] Figure 5 This is a schematic diagram of the internal structure of the control component of the utility model;

[0037] Figure 6 This is a schematic structural diagram of the drainage component of the present utility model.

[0038] In the figure: 1. Collection kettle body;

[0039] 2. Stirring assembly; 21. Driving device 1; 22. Stirring rod;

[0040] 3. Storage box; 31. Feed pipe; 32. Discharge pipe;

[0041] 4. Processing component; 41. Driving device 2; 42. Stirring blade;

[0042] 5. Cooling assembly 1; 51. Inner coil 1; 52. Channel 1; 53. Channel 2;

[0043] 6. Cooling assembly 2; 61. Inner coil 2; 62. Channel 3;

[0044] 7. Control assembly; 71. Housing; 72. Diaphragm; 73. Valve core; 731. Sliding chamber; 74. Shrink sleeve; 75. Switch protrusion; 76. Switch channel; 77. Liquid inlet channel; 78. Liquid outlet channel; 79. Storage chamber;

[0045] 8. Drainage assembly; 81. Protective shell; 82. Drainage tube; 83. Temperature sensing package; 84. Capillary copper tube; 85. Heat conducting plate;

[0046] 9. Temperature sensor. DETAILED DESCRIPTION

[0047] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments in conjunction with the accompanying drawings.

[0048] Example 1

[0049] like Figure 1-2 、 Figure 4 As shown, a temperature automatic control device for a water layer collecting kettle comprises:

[0050] Collection kettle body 1;

[0051] The storage box 3 is located outside the collecting kettle body 1 and includes a feed pipe 31 and a discharge pipe 32;

[0052] Cooling assembly 1 5 and cooling assembly 2 6, cooling assembly 1 5 includes inner coil 1 51, cooling assembly 2 6 includes inner coil 2 61;

[0053] The inner coil 1 51 and the inner coil 2 61 are both located in the collecting kettle body 1. The inlet of the inner coil 1 51 is connected to the discharge pipe 32 via the connecting component 1. The inlet of the inner coil 2 61 is connected to the discharge pipe 32 via the connecting component 2. The outlets of the inner coil 1 51 and the inner coil 2 61 both extend outside the collecting kettle body 1.

[0054] The outlets of the inner coil 51 1 and the inner coil 2 61 can be connected to an external heat exchanger and a circulation pump and connected to the storage tank 3 through a pipeline, so that the chilled brine flowing in the inner coil 1 51 and the inner coil 2 61 can be recycled;

[0055] The inner coil 2 61 surrounds the outside of the inner coil 2 61 , and the overall height of the inner coil 2 61 is half of the inner coil 1 51 ;

[0056] Temperature sensor 9, temperature sensor 9 is located inside the collection kettle body 1, connection component 1 includes channel 1 52 and channel 2 53, an electric control valve is provided in channel 1 52, and temperature sensor 9 is suitable for transmitting signals to the controller to control the switch of the electric control valve.

[0057] like Figure 2 As shown, the temperature automatic control device of the water layer collecting kettle further includes a stirring assembly 2, and the stirring assembly 2 includes a driving device 21 and a stirring rod 22;

[0058] The driving device 1 21 is located outside the collecting kettle body 1, and the stirring rod 22 is located inside the collecting kettle body 1. The stirring rod 22 is located at the axis of the inner coil 1 51 and the inner coil 2 61;

[0059] The driving device 1 21 is connected to the stirring rod 22 so as to be suitable for driving the stirring rod 22 to rotate in the collecting kettle body 1 .

[0060] like Figure 2 、 Figure 4 As shown, the cooling component 2 6 further includes a channel 3 62 , and a control component 7 is provided on both the channel 3 62 and the channel 2 53 . The collecting kettle body 1 is provided with a drainage component 8 corresponding to the control component 7 .

[0061] The drainage assembly 8 includes a drainage tube 82, and the control assembly 7 includes a temperature sensing package 83. The temperature sensing package 83 is located on the outer peripheral surface of the drainage tube 82;

[0062] The temperature sensing package 83 is suitable for sensing the temperature in the drainage tube 82 to control the switching of the cooling component 1 5 and the cooling component 2 6.

[0063] like Figure 5 As shown, the control assembly 7 further includes a housing 71, a diaphragm 72, a valve core 73, a shrink sleeve 74 and a capillary copper tube 84;

[0064] The housing 71 has a storage chamber 79, a sliding chamber 731, a switch channel 76, a liquid inlet channel 77, and a liquid outlet channel 78. The switch channel 76 is in communication with the liquid inlet channel 77 and the liquid outlet channel 78.

[0065] The two ends of the capillary copper tube 84 are respectively connected to the storage chamber 79 and the temperature-sensing package 83, and the temperature-sensing package 83 is provided with a refrigerant;

[0066] The diaphragm 72 is disposed inside the storage chamber 79 , and the valve core 73 is slidably connected to the inside of the sliding chamber 731 . The valve core 73 is connected to the bottom of the diaphragm 72 . The diaphragm 72 is adapted to be squeezed and bent by the refrigerant in the temperature-sensing bulb 83 , thereby pushing the valve core 73 to move longitudinally within the sliding chamber 731 .

[0067] The shrink sleeve 74 is slidably connected in the switch channel 76. A switch protrusion 75 is provided on the top of the shrink sleeve 74. The switch protrusion 75 is adapted to be squeezed by the valve core 73 and then exit the switch channel 76.

[0068] The liquid inlet channel 77 is connected to the inlets of the corresponding inner coil 1 51 and inner coil 2 61 , and the liquid outlet channel 78 is connected to the discharge pipe 32 .

[0069] like Figure 6 As shown, the drainage assembly 8 further includes a protective shell 81 , which is connected to the outer circumference of the collection kettle body 1 , a drainage pipe 82 is located inside the protective shell 81 , and a capillary copper tube 84 passes through the inside of the protective shell 81 .

[0070] like Figure 6 As shown, a heat conducting plate 85 is provided between the temperature sensing package 83 and the drainage tube 82 .

[0071] The working principle of this embodiment is as follows:

[0072] During use, water enters the collection kettle body 1 through the water inlet and is then stored. An inner coil 1 51 and an inner coil 2 61 are provided inside the collection kettle body 1. Both inner coil 1 51 and inner coil 2 61 are used to pass chilled brine. The water in the collection kettle body 1 comes into contact with the inner coil 1 51 and inner coil 2 61, generating heat exchange with the chilled brine inside, thereby achieving a temperature control effect and ensuring that the water in the collection kettle body 1 is always kept at around 0°.

[0073] The chilled brine is stored in the storage tank 3. The feed pipe 31 introduces the chilled brine into the storage tank 3. The chilled brine in the storage tank 3 flows into the discharge pipe 32. The discharge pipe 32 guides the chilled brine inside the inner coil 1 51 and the inner coil 2 61.

[0074] The inner coil 1 51 is connected to the discharge pipe 32 via the channel 1 52 and the channel 2 53. An electrically controlled valve is provided between the channel 1 52 and the inner coil 1 51. The electrically controlled valve cooperates with the temperature sensor 9 in the collection kettle body 1. When the temperature sensor 9 detects that the temperature exceeds a threshold, it sends a signal to the controller to open the electrically controlled valve, thereby directing the chilled brine in the discharge pipe 32 into the inner coil 1 51.

[0075] A control assembly 7 is provided between the second channel 53 and the discharge pipe 32. The control assembly 7 mainly mechanically opens the second channel 53 to prevent the frozen brine in the discharge pipe 32 from being unable to be promptly introduced into the interior of the first inner coil 51 in the event of a malfunction of the electric control valve.

[0076] The start-up of the control component 7 also requires sensing the temperature of the water in the collection kettle body 1, and drawing out part of the water through the drainage pipe 82. After the water is drawn out, the protective cover is used to reduce the influence of the external temperature on the water temperature in the drainage pipe 82. At the same time, the internal water temperature is more quickly guided to the temperature sensing package 83 through the heat conducting plate 85 on the outside of the drainage pipe 82. The temperature sensing package 83 is provided with a refrigerant. The temperature in the temperature sensing package 83 increases as the water temperature in the drainage pipe 82 increases. After the refrigerant expands due to heat, the pressure generated by the expansion is transmitted to the storage chamber 79 in the shell 71 through the capillary copper tube 84. In the process, the diaphragm 72 is compressed to cause a depression, which drives the valve core 73 to move downward. When the valve core 73 moves downward, it squeezes the switch protrusion 75. The switch protrusion 75 and the shrink sleeve 74 move downward until the switch protrusion 75 exits the switch channel 76. The switch channel 76 is no longer blocked by the switch protrusion 75. At this time, the switch channel 76 is interconnected with the liquid inlet channel 77 and the liquid outlet channel 78, so that the chilled brine in the discharge pipe 32 can flow normally into the interior of the inner coil 51 to achieve the effect of refrigeration temperature control. This part is controlled mechanically to avoid the instability of the electric control.

[0077] The inner coil 2 61 is connected to the discharge pipe 32 via a channel 3 62 . The same control component 7 is provided in the channel 3 62 . The control component 7 is controlled by another drainage component 8 . The control method is the same as the above principle.

[0078] The inlet of the second inner coil 61 is located in the middle of the collection kettle body 1. The diameter of the second inner coil 61 is smaller than that of the first inner coil 51. The second inner coil 61 surrounds the outside of the first inner coil 51. The second inner coil 61 mainly controls the temperature of the lower half of the water in the collection kettle body 1 to avoid uneven water temperature in the collection kettle body 1 after cooling through the first inner coil 51, which may cause the temperature sensor 9 to misjudge.

[0079] The driving device 1 21 drives the stirring rod 22 to rotate, thereby stirring the water in the collection kettle body 1, increasing the contact area between the water and the inner coil 1 51 and the inner coil 2 61, and further accelerating the cooling efficiency.

[0080] Example 2

[0081] like Figure 3 As shown, this embodiment further includes the following structures on the basis of the first embodiment: a processing assembly 4 is provided in the storage box 3, and the processing assembly 4 includes a second driving device 41 and a stirring blade 42;

[0082] The second driving device 41 is located outside the storage box 3 , and the stirring blade 42 is located inside the storage box 3 . The second driving device 41 is suitable for driving the stirring blade 42 to rotate inside the storage box 3 .

[0083] The working principle of this embodiment is as follows:

[0084] During the storage process, the frozen brine may precipitate and crystallize. To avoid affecting normal use, the driving device 2 41 can be started during the storage process. The driving device 2 41 drives the stirring blade 42 to rotate inside the storage box 3. The stirring blade 42 continuously stirs the frozen brine to prevent it from precipitating and crystallizing. At the same time, it promotes the flow of the frozen brine when the frozen brine needs to enter the inner coil 1 51 or the inner coil 2 61.

[0085] The specific embodiments described above further illustrate the technical problems, technical solutions and beneficial effects solved by the present invention. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, 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 temperature automatic control device for a water layer collecting kettle, characterized in that: include: Collecting kettle body (1); A storage box (3), the storage box (3) is located outside the collecting kettle body (1), and the storage box (3) includes a feed pipe (31) and a discharge pipe (32); A cooling component 1 (5) and a cooling component 2 (6), wherein the cooling component 1 (5) includes an inner coil 1 (51), and the cooling component 2 (6) includes an inner coil 2 (61); The inner coil pipe 1 (51) and the inner coil pipe 2 (61) are both located in the collecting kettle body (1); the inlet of the inner coil pipe 1 (51) is connected to the discharge pipe (32) via a connecting component 1; the inlet of the inner coil pipe 2 (61) is connected to the discharge pipe (32) via a connecting component 2; and the outlets of the inner coil pipe 1 (51) and the inner coil pipe 2 (61) are both extended to the outside of the collecting kettle body (1); The inner coil pipe 2 (61) surrounds the outside of the inner coil pipe 2 (61), and the overall height of the inner coil pipe 2 (61) is half of the inner coil pipe 1 (51); A temperature sensor (9) is located inside the collecting kettle body (1); the connecting component 1 includes a channel 1 (52) and a channel 2 (53); an electrically controlled valve is provided in the channel 1 (52); and the temperature sensor (9) is suitable for transmitting a signal to a controller to control the opening and closing of the electrically controlled valve.

2. The temperature automatic control device for the water layer collecting kettle according to claim 1, characterized in that: Also included is a stirring assembly (2), wherein the stirring assembly (2) includes a driving device (21) and a stirring rod (22); The driving device 1 (21) is located outside the collecting kettle body (1), the stirring rod (22) is located inside the collecting kettle body (1), and the stirring rod (22) is located at the axis of the inner coil 1 (51) and the inner coil 2 (61); The driving device 1 (21) is connected to the stirring rod (22) so as to be suitable for driving the stirring rod (22) to rotate in the collecting kettle body (1).

3. The temperature automatic control device for the water layer collecting kettle according to claim 1, characterized in that: The cooling component 2 (6) further includes a channel 3 (62), and both the channel 3 (62) and the channel 2 (53) are provided with a control component (7), and the collecting kettle body (1) is provided with a drainage component (8) corresponding to the control component (7); The drainage component (8) includes a drainage tube (82), and the control component (7) includes a temperature sensing package (83), wherein the temperature sensing package (83) is located on the outer peripheral surface of the drainage tube (82); The temperature sensing package (83) is suitable for sensing the temperature in the drainage tube (82) to control the switching of the cooling component 1 (5) and the cooling component 2 (6).

4. The temperature automatic control device for the water layer collecting kettle according to claim 3, characterized in that: The control assembly (7) further comprises a housing (71), a diaphragm (72), a valve core (73), a shrink sleeve (74) and a capillary copper tube (84); The housing (71) is provided with a storage cavity (79), a sliding cavity (731), a switch channel (76), a liquid inlet channel (77), and a liquid outlet channel (78), wherein the switch channel (76) is in communication with the liquid inlet channel (77) and the liquid outlet channel (78); The two ends of the capillary copper tube (84) are respectively connected to the storage cavity (79) and the temperature-sensing package (83), and a refrigerant is provided in the temperature-sensing package (83); The diaphragm (72) is arranged inside the storage cavity (79), the valve core (73) is slidably connected to the inside of the sliding cavity (731), the valve core (73) is connected to the bottom of the diaphragm (72), and the diaphragm (72) is suitable for being squeezed and bent by the refrigerant in the temperature-sensing package (83) to push the valve core (73) to move longitudinally in the sliding cavity (731); The shrink sleeve (74) is slidably connected in the switch channel (76), and a switch protrusion (75) is provided on the top of the shrink sleeve (74), and the switch protrusion (75) is suitable for being squeezed by the valve core (73) and then exiting the switch channel (76); The liquid inlet channel (77) is connected to the inlets of the corresponding inner coil pipe 1 (51) and the inner coil pipe 2 (61), and the liquid outlet channel (78) is connected to the discharge pipe (32).

5. The temperature automatic control device for the water layer collecting kettle according to claim 4 is characterized in that: The drainage assembly (8) further comprises a protective shell (81), the protective shell (81) being connected to the outer peripheral surface of the collection kettle body (1), the drainage tube (82) being located inside the protective shell (81), and the capillary copper tube (84) passing through the interior of the protective shell (81).

6. The automatic temperature control device for the water layer collecting kettle according to claim 3 or 4, characterized in that: A heat conducting plate (85) is provided between the temperature sensing package (83) and the drainage pipe (82).

7. The temperature automatic control device for the water layer collecting kettle according to claim 1, characterized in that: A processing assembly (4) is provided in the storage box (3), and the processing assembly (4) includes a second driving device (41) and a stirring blade (42); The second driving device (41) is located outside the storage box (3), and the stirring blade (42) is located inside the storage box (3). The second driving device (41) is suitable for driving the stirring blade (42) to rotate in the storage box (3).

Images