CN208878416U - A kind of semi-circular tube heat exchange helical stirrer - Google Patents

Abstract

The utility model discloses a kind of semi-circular tube heat exchange helical stirrers, cause stirring intensity in reaction kettle uneven which solve existing agitator design is unreasonable, and reaction kettle inner transmission matter low efficiency, heat transfer speed is slow and non-uniform technical problem, it includes agitating shaft, spiral helicine stirrer paddle on agitating shaft is set, stirrer paddle is the shoestring being looped around on agitating shaft, shoestring is made of the shoestring one and shoestring two of two interlaced arrangements, shoestring one is fastened around on agitating shaft by welding, shoestring two is the hollow half-round tubular structure of lower end sealing, shoestring two is connected and fixed the circumference for being looped around agitating shaft by support tube, it can be widely applied to mechanical stirring equipment field.

Description

A kind of semi-circular tube heat exchange helical stirrer

Technical field

The utility model belongs to mechanical stirring equipment technical field, and in particular to a kind of semi-circular tube heat exchange helical form stirring Device.

Background technique

Mass-transfer efficiency in field of fine chemical, reactor is anti-for physics, chemistry, materialization and biochemistry etc. in reactor Rate is answered to play a decisive role, rate of heat transfer and heat dispersion effect determine the superiority and inferiority of reaction and processing result.Currently, reaction The solid agitating shaft paddle that the mechanical stirring equipment used in device is all made of, the notable defect of the agitating paddle is: the biography of heat of reaction It passs and relies solely on reaction kettle wall or coil surface and realize that the inside and outside heat exchange of kettle drives material to be mixed using agitating paddle It closes, realizes the heat exchange between material.The material poor for a large amount of mobility, timely transmitting and the evenly dispersed pole of heat For difficulty.The higher reaction of rate request is controlled for reaction temperature, faster heat transfer is cannot achieve, easily causes to be heated Uneven or cooling effect is poor, and eventually leading to reaction product quality and performance significantly reduces.

Summary of the invention

The utility model is directed to shortcoming and defect existing in the prior art, proposes that a kind of structure is simple, keeps stirring anti- It answers stirring intensity in kettle uniform, significantly improves the semi-circular tube heat exchange helical form of the mass-transfer efficiency and heat transfer speed in reactor Blender.

For this purpose, the utility model provides a kind of semi-circular tube heat exchange helical stirrer comprising agitating shaft, setting are being stirred Spiral helicine stirrer paddle on axis, stirrer paddle are the shoestring being looped around on agitating shaft, and shoestring is interlaced by two The shoestring one and shoestring two of arrangement form, and shoestring one is fastened around on agitating shaft by welding, shoestring The two hollow half-round tubular structures sealed for lower end, shoestring two are connected and fixed the circle for being looped around agitating shaft by support tube Week.

Preferably, agitating shaft is the hollow tubular structure of lower end sealing, and one end of support tube and agitating shaft are penetrated through and sealed Connection, the other end of support tube are penetrated through and are sealedly and fixedly connected with the lateral wall of shoestring two.

Preferably, the top of agitating shaft is equipped with partition closed inside agitating shaft, and agitating shaft inside is equipped with lower end and distinguishes Across the water inlet pipe and outlet pipe of partition, the lower end nozzle of water inlet pipe protrudes into the lower end of agitating shaft, the lower end nozzle of outlet pipe Height is higher than the tip height of shoestring two.

Preferably, positioned at stirred autoclave top, it is also fixedly connected equipped with the first support frame, the top of the first support frame It is fixedly connected and is equipped with stirring driving motor and speed reducer, stirring driving motor drives agitating shaft to turn by the output shaft of speed reducer It is dynamic.

Preferably, stirring driving motor is horizontal machine.

Preferably, it is fixedly connected above speed reducer equipped with the second support frame, is respectively fixedly connected with and sets on the second support frame There are admitting pipe joint and titting water outlet, the upper end tube nozzle connection of admitting pipe joint and water inlet pipe, titting water outlet and outlet pipe Upper end tube nozzle connection.

Preferably, the other end of support tube is fixedly connected by welding with the lateral wall of shoestring two.

Preferably, shoestring one and shoestring two are stainless steel material.

Preferably, the protruding parts of the half-round tubular structure of shoestring two is in the downside of shoestring two.

Preferably, the distance of any point at the blade edge of shoestring two to reaction kettle inner wall, which is respectively less than, is equal to 30mm.

The beneficial effects of the utility model are:

(1) the semi-circular tube heat exchange helical stirrer of the utility model, structure is simple, makes stirring intensity in stirred autoclave Uniformly, can meet the needs of different shape reaction kettle, significantly improve mass-transfer efficiency and heat transfer speed in reactor.Operation When, two kinds of contrary water flows flowings are formed in stirred autoclave, first is that the rotation of shoestring two generate be located at auger The castering action that water flow within the scope of paddle diameter of propeller blade is stirred moves upwards, second is that producing negative pressure below propeller Area moves downward the water flow being located at other than diameter of propeller blade range under the action of negative pressure.On the one hand, because two kinds contrary Water flow flowing enables the reactive material in reactor adequately to mix, so short stream and dead angle phenomenon and will not will not be generated The excessively high or insufficient problem of generating region stirring intensity；On the other hand, heat transfer rate is high in stirred autoclave, and reaction effect is good, It can be shortened the reaction time, reactor volume is small, and processing cost is low.

(2) when the semi-circular tube heat exchange helical stirrer operation of the utility model, in conjunction with the hollow semi-circular tube of shoestring two Shape structure acts on being sufficiently stirred, can preferably control the reaction temperature in stirred autoclave.When being passed through cooling water, make Its cooling rate in stirred autoclave is fast, and cooling effect significantly improves；When being passed through hot water, can make anti-in stirred autoclave Answer object heated more evenly.

(3) stirrer paddle of blender described in the utility model uses shoestring structure, such one side of shoestring structure Face can save material, and on the other hand, the area contacted with reaction mass reduces, and reaction mass is not easily accumulated in shoestring knot On the stirrer paddle of structure, the intensity of labour is reduced, extends the service life of blender.In addition, spiral helicine stirrer paddle Relative to the stirring stirrer paddle of plane used in daily production, reaction mass can be made to be stirred to greatest extent It is even, improve the efficiency of stirring.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the structural schematic diagram of shoestring one and shoestring two in Fig. 1.

Marked in the figure: 1. agitating shafts, 2. shoestring one, 3. shoestring two, 4. support tubes, 5. partitions, 6. water inlet pipes, 7. go out Water pipe, 8. stirred autoclaves, 9. first support frames, 10. stirring driving motors, 11. speed reducers, 12. second support frames, 13. into Water pipe head, 14. titting water outlets.

Specific embodiment

The utility model is described in further detail in the following with reference to the drawings and specific embodiments, to help the utility model is understood Content.Method used in the utility model is conventional method unless otherwise required；Used raw material and dress It sets, is conventional commercial product unless otherwise required.

As shown in Figure 1 and Figure 2, the utility model provides a kind of semi-circular tube heat exchange helical stirrer comprising agitating shaft 1, Spiral helicine stirrer paddle on agitating shaft 1 is set, and stirrer paddle is the shoestring being looped around on agitating shaft, and shoestring is by two The shoestring 1 and shoestring 23 of the interlaced arrangement of item form, and shoestring 1 is fastened around by welding to be stirred It mixes on axis 1, shoestring 23 is the hollow half-round tubular structure of lower end sealing, and shoestring 23 is connected and fixed by support tube 4 It is looped around the circumference of agitating shaft 1.Shoestring 1 and shoestring 23 are stainless steel material.The half-round tubular knot of shoestring 23 The protruding parts of structure is in the downside of shoestring 23.Any point at the blade edge of shoestring 23 to reaction kettle inner wall away from From equal to 30mm.Agitating shaft 1 is the hollow tubular structure of lower end sealing, and one end of support tube 4 and agitating shaft 1 penetrate through and the company of sealing It connects, the other end of support tube 4 is penetrated through and is sealedly and fixedly connected by welding with the lateral wall of shoestring 23.This is practical The stirrer paddle of the novel blender uses shoestring structure, and on the one hand such shoestring structure can save material, instead It answers material to be not easily accumulated on the stirrer paddle of shoestring structure, reduces the intensity of labour, extend the use of blender Service life.On the other hand, stirring stirrer paddle of the spiral helicine stirrer paddle relative to plane used in daily production, can It is stirred reaction mass to greatest extent uniformly, improves the efficiency of stirring.

The top of agitating shaft 1 is equipped with the 1 closed partition 5 in inside of agitating shaft, and 1 inside of agitating shaft is each passed through equipped with lower end The water inlet pipe 6 and outlet pipe 7 of partition 5, the lower end nozzle of water inlet pipe 6 protrude into the lower end of agitating shaft 1, the lower end nozzle of outlet pipe 7 Height be higher than shoestring 23 tip height.Positioned at 8 top of stirred autoclave, it is also fixedly connected equipped with the first support frame 9, The top of first support frame 9, which is fixedly connected, is equipped with stirring driving motor 10 and speed reducer 11, and stirring driving motor 10 is Horizontal electric Machine, stirring driving motor 10 drive agitating shaft 1 to rotate by the output shaft of speed reducer 11.The top of speed reducer 11, which is fixedly connected, to be set There is the second support frame 12, is respectively fixedly connected on the second support frame 12 equipped with admitting pipe joint 13 and titting water outlet 14, water inlet Pipe fitting 13 is connect with the upper end tube nozzle of water inlet pipe 6, and titting water outlet 14 is connect with the upper end tube nozzle of outlet pipe 7.

When the semi-circular tube heat exchange helical stirrer operation of the utility model, two kinds of direction phases are formed in stirred autoclave 8 Anti- water flow flowing, first is that the water flow being located within the scope of propeller diameter of propeller blade that the rotation of shoestring 23 generates is stirred Castering action move upwards, second is that produce negative pressuren zone below propeller, make to be located at other than diameter of propeller blade range Water flow moves downward under the action of negative pressure.On the one hand, because two kinds of contrary water flow flowings make the reactant in reactor Matter is adequately mixed, thus will not generate it is short stream and dead angle phenomenon and will not generating region stirring intensity it is excessively high or insufficient The problem of；On the other hand, 8 inner transmission matter speed of stirred autoclave is high, and reaction effect is good, can be shortened reaction time, reactor volume Small, processing cost is low.

In use, the connection for first passing through admitting pipe joint 13 and water inlet pipe 6 is passed through cooling water, and cooling water first reaches The lower end of agitating shaft 1 starts to fill the water, and with the raising of water level in agitating shaft 1, cooling water begins through support tube 4 into shoestring In 23, after successively filling water from top to bottom, finally connect along outlet pipe 7 from the outlet pipe on top from 7 lower end nozzle of outlet pipe It is discharged at first 14, the cooling water circulation in entire agitating device is then carried out, in conjunction with the hollow half-round tubular knot of shoestring 23 Structure is acted on being sufficiently stirred, and making it, cooling rate is fast in stirred autoclave 8, and cooling effect significantly improves, and can preferably control Reaction temperature in stirred autoclave 8 processed.

In use, the connection for first passing through admitting pipe joint 13 and water inlet pipe 6 is passed through hot water, can make to be stirred to react Reactant is heated more evenly in kettle 8.

To sum up, the semi-circular tube of the utility model exchanges heat helical stirrer, simple and ingenious structure, in use process, a side Face significantly improves 8 inner transmission matter speed of stirred autoclave, keeps the interior stirring integral strength of stirred autoclave 8 uniform, makes reaction effect It is good, it can be shortened the reaction time, reactor volume is small, and processing cost is low；On the other hand, heat in stirred autoclave 8 is significantly improved Transmission speed preferably controls reaction temperature: heat transfer or cooling effect.

The above is only the embodiment of utility model, for example, shoestring 23 blade edge any point to reaction The distance of kettle inner wall, which is respectively less than, is equal to 30mm, can design the shoestring 23 to match according to the interior shape of differential responses kettle The semi-circular tube heat exchange helical stirrer of the utility model may be implemented in overall exterior shape.

In the description of the present invention, it should be understood that term " on ", "lower", "top", "bottom", "inner", "outside", The orientation or positional relationship of instructions such as " centres " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description originally Utility model and simplified description, rather than the device or element of indication or suggestion meaning must have specific orientation, with specific Orientation construction and operation, therefore should not be understood as limiting the present invention.

Only as described above, only specific embodiment of the utility model, when the utility model cannot be limited with this The range of implementation, therefore the displacement of its equivalent assemblies, or according to equivalent changes and modifications made by the utility model patent protection scope, It should still belong to the scope that the utility model claims book is covered.

Claims (10)

1. The helical stirrer 1. a kind of semi-circular tube exchanges heat comprising agitating shaft, the spiral helicine agitating paddle being arranged on agitating shaft Leaf, the stirrer paddle are the shoestring being symmetrically looped around on agitating shaft, and the shoestring is by two mutually around the band of arrangement Shape body one and shoestring two form, and the shoestring one is fastened around by welding on the agitating shaft, feature It is, the shoestring two is the hollow half-round tubular structure of lower end sealing, and the shoestring two is connected solid by support tube Surely it is looped around the circumference of the agitating shaft.
2. The helical stirrer 2. a kind of semi-circular tube according to claim 1 exchanges heat, which is characterized in that under the agitating shaft is The hollow tubular structure of sealing is held, one end of the support tube and the agitating shaft are penetrated through and be tightly connected, the support tube The semicircular cavity of the other end and the shoestring two is penetrated through and is sealedly and fixedly connected.
3. The helical stirrer 3. a kind of semi-circular tube according to claim 2 exchanges heat, which is characterized in that the agitating shaft it is upper Portion is equipped with partition closed inside the agitating shaft, and the agitating shaft inside is equipped with the water inlet that lower end is each passed through the partition Pipe and outlet pipe, the lower end nozzle of the water inlet pipe protrude into the lower end of the agitating shaft, the height of the lower end nozzle of the outlet pipe Degree is higher than the tip height of the shoestring two.
4. The helical stirrer 4. a kind of semi-circular tube according to claim 1 exchanges heat, which is characterized in that be located at stirred autoclave It is also fixedly connected equipped with the first support frame on top, be fixedly connected above first support frame be equipped with stirring driving motor and Speed reducer, the stirring driving motor drive the agitating shaft rotation by the output shaft of the speed reducer.
5. The helical stirrer 5. a kind of semi-circular tube according to claim 4 exchanges heat, which is characterized in that the stirring driving electricity Machine is horizontal machine.
6. The helical stirrer 6. a kind of semi-circular tube according to claim 5 exchanges heat, which is characterized in that the speed reducer it is upper Side is fixedly connected equipped with the second support frame, is respectively fixedly connected on second support frame and is connect equipped with admitting pipe joint and outlet pipe Head, the admitting pipe joint are connect with the upper end tube nozzle of the water inlet pipe, the upper end of the titting water outlet and the outlet pipe Nozzle connection.
7. The helical stirrer 7. a kind of semi-circular tube according to claim 2 exchanges heat, which is characterized in that the support tube it is another One end is fixedly connected by welding with the lateral wall of the shoestring two.
8. The helical stirrer 8. a kind of semi-circular tube according to claim 1 exchanges heat, which is characterized in that one He of shoestring The shoestring two is stainless steel material.
9. The helical stirrer 9. a kind of semi-circular tube according to claim 1 exchanges heat, which is characterized in that the shoestring two The protruding parts of half-round tubular structure is in the downside of the shoestring two.
10. The helical stirrer 10. a kind of semi-circular tube according to claim 4 exchanges heat, which is characterized in that the shoestring two The distance of any point to reaction kettle inner wall at blade edge be respectively less than and be equal to 30mm.