Homogenizing valve
By forming shear gaps and expansion chambers on both sides of the pressure chamber of the homogenized valve, the force effect on the valve body is reduced, the problem of high regulation force during high-pressure homogenization is solved, and the valve body control under low regulation force is achieved and move, improving operational convenience and efficiency.
Patent Information
- Application Number
- CN202380048500.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2022-06-22
- Filing Date
- 2023-06-19
- Publication Date
- 2025-02-14
AI Technical Summary
When homogenizing with high pressure, the homogenization valve requires a large adjustment force to set the homogenization gap, resulting in inconvenient operation.
A homogenized valve is designed, and its valve body reduces the force effect on the valve body by forming a shear gap and expansion chamber on both sides of the pressure chamber, thereby achieving control of the valve body under significantly reduced regulating force and move.
By reducing the force effect on the valve body, the shear gap is adjusted under small force consumption, and the convenience and efficiency of operation are improved.
Smart Images
Figure CN119451743A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a homogenizing valve according to the preamble of claim 1 and to a further homogenizing valve according to the preamble of claim 19 . Background Art
[0002] Such homogenizing valves are used to evenly separate the different components of juices or dairy products or similar products and to distribute them evenly in the medium. To this end, the medium to be homogenized passes under high pressure (usually more than 150 bar) over a shearing edge, after which the medium to be homogenized expands and in particular pulp fibers in juices or fat droplets in emulsions such as milk are effectively comminuted.
[0003] Especially when homogenizing with high pressure, a large adjustment force is required to set the homogenizing gap in the homogenizing valve. The large adjustment force required comes from the operating pressure acting on the pressure surface of the valve body in the adjustment direction of the valve body. Summary of the invention
[0004] The object of the present invention is to provide a homogenizing valve, the valve body of which can be controlled or displaced with significantly reduced actuating forces.
[0005] This object is achieved by a homogenizing valve having the features of claim 1 .
[0006] The homogenizing valve according to the invention for homogenizing a medium under system pressure has a valve housing with an inlet channel and an outlet channel for the medium.
[0007] The homogenizing valve further comprises a valve seat, which is arranged on the valve housing and has a receiving portion, through which the valve body extends movably in the direction of the longitudinal axis thereof.
[0008] In the receptacle of the valve seat and / or on the outer surface of the valve body A pressure chamber is formed that is connected to the inlet channel.
[0009] Furthermore, an adjustment unit operatively connected to the valve body is provided. The axial position of the valve body in the receiving portion can be adjusted by the adjustment unit. Axial movement is understood to be an axial movement relative to an imaginary center axis of the receiving portion.
[0010] The flow resistance from the inlet channel to the outlet channel can be adjusted by means of a displacement in the valve body seat.
[0011] Between the inner wall of the valve seat forming the accommodating portion and the valve body, a shear gap is formed on both sides of the pressure chamber when viewed in the displacement direction of the valve body, wherein the shear gap is formed by a shear blade (Messerkante) and a conical wall area opposite to the shear blade, and an expansion chamber is arranged downstream of the shear gap in the flow direction and is connected to the outlet channel.
[0012] Since such shear gaps are arranged on both sides of the pressure chamber, almost no force acts on the movable valve body in the direction of the longitudinal axis of the valve body, which corresponds to the movement direction of the valve body.
[0013] The shear gap can therefore be adjusted with minimal expenditure of force by moving the valve body using the adjustment unit.
[0014] Advantageous embodiment variants of the invention are the subject matter of the dependent claims.
[0015] According to an advantageous embodiment variant, a first one of the shearing edges closer to the adjustment unit has a greater length in the circumferential direction than a second one of the shearing edges farther from the adjustment unit.
[0016] As a result, the valve body can be installed very easily in the axial direction into the valve seat.
[0017] According to a preferred further solution, the shearing edge is double-conical when viewed from the longitudinal axis direction of the valve body.
[0018] According to a preferred first embodiment variant, the shearing edge is positioned on the outer shell surface of the valve body between the conical regions of the receptacle in the displacement direction of the valve body.
[0019] In particular, when the valve body is molded, shearing edges can be formed on the outer shell surface of the valve body in an extremely precise manner.
[0020] According to another embodiment variant, the shear blade is designed as a separate component and attached to the outer shell surface of the valve body. This design can make the valve body parts made of different materials. In particular, the shear blade can be made of a particularly hard material to further extend its service life.
[0021] According to another embodiment variant, an inverse arrangement is also conceivable, in which the shearing edge is positioned on the inner surface of the valve seat between regions of the outer shell surface of the valve body which are conical in the displacement direction of the valve body.
[0022] The shear gap can be easily adjusted by displacing the valve body in the valve seat.
[0023] According to a further preferred embodiment variant, guide surfaces are provided on the inner surface of the valve seat and on the outer shell surface of the valve body, wherein recesses connected to the respective expansion chambers are provided on the guide surfaces of the valve seat and / or the valve body.
[0024] When the expanded medium enters the groove from the expansion chamber, the groove causes the expanded medium to generate additional backflow by diverting the medium.
[0025] According to a preferred further development, the groove extends linearly parallel to the displacement direction of the valve body. A curved design of the groove is conceivable.
[0026] In a preferred variant, the groove is formed on the guide surface of the valve body.
[0027] In an alternative variant, the groove is formed on the guide surface of the valve seat.
[0028] According to a further preferred embodiment variant, the guide surfaces of the valve body and the valve seat are conical in the direction of the longitudinal axis of the valve body.
[0029] In an alternative embodiment variant, the guide surfaces of the valve body and the valve seat are cylindrical in the direction of the longitudinal axis of the valve body.
[0030] This variant allows for a more precise guidance of the valve body into the valve seat.
[0031] According to a further preferred embodiment variant, a channel connected to the outlet is provided in the valve housing downstream of the valve body.
[0032] According to a preferred further development, the channels open into a mixing region of the outlet or into a mixing chamber upstream of the outlet, wherein a nozzle is arranged upstream of each channel, the spray directions of the nozzles being aligned with one another.
[0033] These nozzles enable a cross-flow of the already expanded medium, thus further improving the quality of homogenization.
[0034] In a further preferred embodiment variant, the diameter of the conical valve seat and of the part of the valve body having the conical outer shell surface is designed to increase in the direction of the adjusting unit.
[0035] The valve seat is preferably mounted in a non-movable manner in a receptacle of the valve housing.
[0036] Furthermore, as an alternative embodiment variant it is also conceivable to produce the valve seat as part of the valve body.
[0037] In a further preferred embodiment variant, an elastic unit is arranged between the adjustment unit and the valve body.
[0038] The elastic unit is preferably designed as a spring assembly having at least two disc springs, whereby clogging of the pressure chamber can be easily prevented, because when the operating pressure increases, the valve body briefly moves in the direction of the adjusting unit to release the pressure due to the different surface areas of the shearing blades on both sides of the pressure chamber, whereby the gap height briefly increases until the initial operating pressure is reached again in the pressure chamber, whereupon the valve body is automatically pressed back to its initial position due to the force of the elastic unit.
[0039] Another alternative variant of the homogenizing valve according to the invention comprises: a valve housing having an outlet channel for the medium; and a valve seat, which is arranged in the valve housing along the displacement axis and has an at least partially conical receptacle, in which a valve body is mounted, the valve body being fastened to the valve housing and having an at least partially conical outer shell surface and an inlet channel.
[0040] A pressure chamber is connected to the inlet channel, which pressure chamber is molded into the receptacle of the valve seat and / or into the outer shell surface of the valve body.
[0041] The regulating unit is operably connected to the valve seat. The flow of the medium from the inlet channel to the outlet channel can be regulated through the interaction between the valve body and the valve seat.
[0042] Here, between the inner wall of the valve seat forming the accommodating portion and the valve body, a shear gap and an expansion chamber are also formed on both sides of the pressure chamber in the displacement direction of the valve body, the shear gap being formed by a shear blade and a conical wall area opposite to the shear blade, and the expansion chamber being arranged downstream of the shear gap in the flow direction and connected to the outlet channel.
[0043] In this variant, the central supply of the medium to be homogenized enters the pressure chamber through the valve body, from which the medium continues to flow past the shearing edges in the displacement direction of the valve body, which makes it possible to adjust the shear gap with only a small expenditure of force (in this case only the valve seat displacement is adjusted). BRIEF DESCRIPTION OF THE DRAWINGS
[0044] In the following, preferred exemplary embodiments will be described in more detail with reference to the accompanying drawings, in which:
[0045] Figure 1 A schematic sectional view shows an embodiment variant of a homogenizing valve according to the invention, which has a fixedly mounted valve seat and an axially displaceable valve body,
[0046] Figure 2 Shown corresponding to Figure 1 A cross-sectional view with a top view of the uncut valve body,
[0047] Figure 3 Shown corresponding to Figure 1 A cross-sectional view of another embodiment variant of a homogenizing valve with an additional nozzle,
[0048] Figure 4 An isometric single view showing an embodiment variant of a valve body having a shearing edge molded thereon and having a guide surface provided with a groove,
[0049] Figure 5 Show Figure 4 The cross-section of the valve body inserted into the valve seat is shown.
[0050] Figure 6 An isometric cross-sectional view of a valve seat having a shearing edge arranged in a receiving cavity and a guide surface in which a groove is introduced,
[0051] Figure 7 Show Figure 6 A cross-sectional view of a valve seat in which a valve body with a conical outer shell surface is inserted,
[0052] Figure 8 and Fig. 9 Shown corresponding to Figure 5 and a cross-sectional view of a further embodiment variant of the valve seat and the valve body inserted therein,
[0053] Fig.10 A schematic cross-sectional view shows another embodiment variant of a homogenizing valve according to the invention, the homogenizing valve having a movable valve seat and a fixed valve body, and
[0054] Fig.11 Shown corresponding to Figure 1 A further embodiment variant of the homogenizing valve according to the invention comprises an additional elastic unit between the valve body and the adjusting unit. DETAILED DESCRIPTION
[0055] In the following illustrations, the terms such as top, bottom, left, right, front, and rear refer specifically to the exemplary representations and positions of the homogenizing valve, valve housing, valve seat, valve body, shear blade, expansion chamber, etc. selected in each figure. These terms should not be understood restrictively, that is, these references may change due to different operating positions or the use of mirror-symmetrical designs, etc.
[0056] exist Figure 1 In the drawings, reference numeral 1 is used to denote a complete embodiment variant of a homogenizing valve according to the invention.
[0057] The homogenizing valve 1 has a valve housing 2 with an inlet channel 21 and an outlet channel 22 for the medium to be homogenized.
[0058] The valve seat 4 is arranged in the valve housing 2. The valve seat 4 has a receptacle 42, through which the valve body 3 of the homogenizing valve 1 extends displaceably in the longitudinal axis L direction.
[0059] like Figure 1 As shown, the valve seat 4 can be designed as a separate component which is installed in the valve housing 2 and is sealed relative to the valve housing 2 by a static high-pressure seal 13 .
[0060] It is also conceivable to design the valve seat 4 in one piece with the valve housing 2 .
[0061] The receptacle 42 of the valve seat 4 is designed as a through-hole, through which the valve region 33 of the valve body 3 extends.
[0062] The axial position of the valve body 3 in the receiving portion 42 can be adjusted by means of an adjustment unit 5, for example in the form of a manually rotatable screw, such as Figure 1 shown.
[0063] In the exemplary embodiment shown, the adjustment unit 5 is screwed into a guide housing 6 , the body 61 of which is securely screwed to the valve housing 2 by means of fixing screws 62 .
[0064] In the embodiment variant shown here, the guide housing 6 has a receptacle 63 which extends into the receptacle of the valve housing 2. The inner surface of the receptacle 63 serves as a guide surface for the head 31 of the valve body 3, the guide shell 312 of the head 31 forming a sliding surface which can be displaced on the inner surface of the receptacle 63 of the guide housing 6 in the direction of the longitudinal axis L of the valve body 3. The longitudinal axis L is also the (imaginary) center axis of the receptacle 42.
[0065] In order to seal the head 31 of the valve body 3 relative to the inner wall of the accommodating portion 63 of the guide housing 6, the guide housing 312 of the head 31 of the valve body 3 is provided with a seal receiving groove 313 in which the dynamic low-pressure seal 12 is accommodated.
[0066] The end face 311 of the head 31 of the valve body 3 serves as a contact surface for the end face of the adjustment unit 5 .
[0067] like Figure 1 and Figure 2 As shown, a pressure chamber 7 connected to the inlet channel 21 is formed in the receptacle 42 of the valve seat 4 and / or in the outer shell surface 33 of the valve body 3 .
[0068] exist Figure 1 and Figure 2 In the embodiment variant shown, the receptacle 42 of the valve seat 4 widens in annular fashion around the pressure chamber inlet channel 41 in order to form the pressure chamber 7 .
[0069] like Figure 1 and Figure 2 As shown, between the inner wall of the valve seat 4 forming the accommodating portion 42 and the valve body 3, a shear gap is formed on both sides of the pressure chamber 7, the shear gap is formed by the shear blades 8a, 8b and the conical wall area opposite thereto, and an expansion chamber 9 is formed downstream of the shear gap along the flow direction, and the expansion chamber 9 is connected to the outlet channel 22.
[0070] Since the medium to be homogenized enters the pressure chamber 7 through the inlet channel 21 under high pressure, in particular at a pressure greater than 150 bar, the shearing blades 8a, 8b arranged on both sides of the pressure chamber 7 ensure that the medium under high pressure exerts almost no force on the movable valve body 3 in the movement direction of the valve body 3, that is, in the direction of the longitudinal axis L.
[0071] The shear gap is adjusted by moving the valve body 3 relative to the valve seat 4. The gap size of the shear gap between the shearing edges 8a and 8b and the conical wall area is the same on both sides.
[0072] Depending on the medium to be homogenized, the gap size is preferably set in the range between 0.01 mm and 0.1 mm.
[0073] In all the embodiment variants shown, the length of the shearing edge 8a close to the adjusting unit 5 in the circumferential direction is greater than the length of the shearing edge 8b away from the adjusting unit 5. Therefore, the inner diameter of the receiving portion 42 in the area close to the adjusting unit 5 is greater than the inner diameter of the receiving portion 42 away from the adjusting unit 5.
[0074] The shearing blades 8a and 8b are preferably designed as a double cone, wherein the front side narrows the shear gap starting from the pressure chamber 7, a short section with constant radial width is adjacent to the front side when viewed in the direction of the longitudinal axis L of the valve body 3, and the rear side is adjacent to the short section and expands the shear gap toward the expansion chamber 9.
[0075] exist Figures 1 to 5 In the embodiment variant of the homogenizing valve 1 shown, the shearing edges 8a, 8b are positioned on the outer surface of the valve body 3 between the areas of the receiving portion 42 which are conical in the displacement direction of the valve body 3, while Figure 6 and Figure 7 In the embodiment variant shown, the valve region 33 ′ of the valve body 3 is linearly conical.
[0076] The shearing edges 8 a and 8 b are positioned here on the inner surface of the valve seat 4 which forms the receptacle 42 , between regions of the outer shell surface of the valve body 3 which are conical in the displacement direction of the valve body 3 .
[0077] exist Figure 6 and Figure 7 In the embodiment variant shown, the annular expansion chamber 9 is also formed in the inner wall of the valve seat 4 ′ which forms the receptacle 42 ′.
[0078] In both variants, the shearing edges 8a and 8b may be integrally molded on the respective components, i.e. Figures 1 to 5 The valve body 3 or the valve seat 4 in the illustrated embodiment may be designed as a separate component which is attached to the valve body 3 or the valve seat 4 .
[0079] from Figure 2 and Figure 4 It can also be clearly seen that guide surfaces 34, 35, 43, 44 are arranged on the inner surface of the valve seat 4 and the outer surface of the valve body 3, wherein a groove 10 connected to the corresponding expansion chamber 9 is arranged on the guide surfaces 43, 44 of the valve seat 4 or the guide surfaces 34, 35 of the valve body 3.
[0080] exist Figures 1 to 5 In the embodiment variant of the homogenizing valve 1 shown, these grooves 10 are arranged on the guide surfaces 34, 35 of the valve body 3. The grooves 10 preferably extend in a straight line parallel to the direction of movement of the valve body 3.
[0081] from Figure 6 It can be clearly seen in FIG. 4 that in an alternative embodiment variant of the homogenizing valve 1 , the recess 10 is formed in the guide surfaces 43 , 44 of the valve seat 4 .
[0082] from Figures 1 to 8 It can also be seen in the figure that the guide surfaces 34 , 35 , 43 , 44 of the valve body 3 and the valve seat 4 are conical in the direction of the longitudinal axis L of the valve body 3 .
[0083] exist Fig. 9 In another embodiment variant shown, the guide surfaces 34'", 35'", 43'" and 44'" are cylindrical, wherein the diameter of the valve body 3 and the corresponding valve seat 4 receptacle 42 in the region of the guide surfaces 34, 43'" is greater than in the region of the guide surfaces 35'", 44'".
[0084] Designing these guide surfaces 34 ′″, 35 ′″, 43 ′″, 44 ′″ as cylindrical surfaces can better guide the valve body 3 into the valve seat 4 because in this case, the guide surfaces are in sliding contact with the receiving portion 42 in each adjustment position of the valve body 3 .
[0085] like Figure 3 In the embodiment variant shown, it is further shown that channels 23 and 24 connected to the outlet 22 are provided in the valve housing 2 downstream of the valve body 3 .
[0086] These channels 23, 24 open into a mixing zone of the outlet 22 or into a mixing chamber 25 upstream of the outlet, so that the medium to be homogenized is mixed in a cross flow after expansion in the two expansion chambers 9. ) re-flows into the mixing zone of the outlet 22 or the mixing chamber 25 upstream of the outlet.
[0087] A nozzle 11 is preferably arranged in each channel 23 , 24 , wherein the spraying direction of the nozzle 11 is oriented such that the two medium flows guided through the respective nozzle 11 are accelerated to merge in the mixing zone of the outlet 22 or in the mixing chamber 25 upstream of the outlet.
[0088] Part of the medium flow also crosses the two expansion chambers 9 , where there is a transition area to the groove 10 , through which the medium is discharged from the region of the valve body 3 into the channels 23 and 24 .
[0089] In addition, if Figure 8As shown in the example, it is also conceivable to exchange the positions of the shearing edges 8a, 8b and the guide surfaces 34, 35, 43, 44 so that the medium first passes through the groove 10 after entering the pressure chamber and is then guided into the corresponding expansion chamber 9 via the shearing edges 8a, 8b.
[0090] exist Fig.10 In another embodiment variant shown, an elastic unit 15 is arranged between the adjustment unit 5 and the valve body 3. The elastic unit 15 is designed here as a spring assembly, which has a plurality of, in particular at least two disc springs, which are used to ensure that during operation, if the operating pressure increases too much, for example due to a blockage in the pressure chamber 7, the valve body 3 overcomes the force of the elastic unit 15 and is displaced to release the pressure, thereby increasing the gap height until the operating pressure reaches the initial value again, so that the valve body 3 is pressed back to the initial position by the elastic unit 15.
[0091] The movement of the valve body 3 to overcome the force of the elastic unit 15 depends on the difference between the area of the shearing edge 8a of the pressure chamber 7 close to the adjusting unit 5 and the area of the shearing edge 8b of the pressure chamber 7 away from the adjusting unit 5, wherein the area of the shearing edge 8a of the pressure chamber 7 close to the adjusting unit 5 is greater than the area of the shearing edge 8b of the pressure chamber 7 away from the adjusting unit 5.
[0092] In this case, adjustment of the adjustment unit 5 firstly enables adjustment of the holding force of the spring means 15 .
[0093] Fig.11 Another embodiment of the homogenizing valve 100 is shown.
[0094] In this embodiment variant, the valve housing 120 is formed with outlet channels 122, 123 for the medium. A valve seat 140 is provided in the valve body 120, which is arranged along the displacement axis L, and an at least partially conical receptacle 142, in which a valve body 130 is mounted, which is attached to the valve housing 120 in this case and has an at least partially conical shell surface 133 and an inlet 131.
[0095] The inlet 131 is designed as a channel formed from one end surface into the valve body along the longitudinal axis, and a plurality of channels branching in the radial direction or approximately in the radial direction lead from the end of the inlet to the pressure chamber 170, which is molded in the receiving portion 142 of the valve seat 140 and / or the outer shell surface 133 of the valve body 130. Figures 1 to 9 In the embodiment variant shown, the pressure chamber 170 is also designed as an annular groove. The material recess for forming the pressure chamber 170 is preferably provided in the valve body 130 .
[0096] Furthermore, in this embodiment variant, the regulating unit 150 is operatively connected to the valve seat 140. By displacing the valve seat 140 relative to the valve body 130 fixedly mounted on the valve housing 120, the medium flow from the inlet 131 to the outlet channel 122 in the valve housing 120 can be adjusted.
[0097] Here, between the inner wall of the valve seat 140 forming the accommodating portion 142 and the valve body 130, a shear gap and an expansion chamber 9 are formed on both sides of the pressure chamber 170 in the displacement direction of the valve body 130. The shear gap is formed by the shear blades 8a, 8b and the conical wall area opposite thereto, and the expansion chamber 9 is formed downstream of the shear gap along the flow direction and is connected to the outlet channel 122.
[0098] Furthermore, in this embodiment variant, a groove 10 is also provided downstream of the expansion chamber 9 , and the groove 10 may also be molded on the outer shell surface 133 of the valve body 130 , or molded on the inner surface of the valve seat 140 forming the accommodating portion 142 .
[0099] In the exemplary embodiment shown, the shearing edges 8 a and 8 b are formed by the edges of the outer shell surface 133 of the valve body 130 at the transition to the expansion chamber 9 .
[0100] Reference numerals list
[0101] 1 Homogenizing valve
[0102] 2 valve housing
[0103] 21 Entryway
[0104] 22 Exit Channel
[0105] 23 channels
[0106] 24 channels
[0107] 25 Mixing chamber
[0108] 26 Ring Room
[0109] 3 Valve body
[0110] 31 Head
[0111] 311 End face
[0112] 312 Boot Shell
[0113] 313 Sealed receiving tank
[0114] 32 Transition Zone
[0115] 33 Valve area
[0116] 34, 34', 34" guide surface
[0117] 35, 35', 35" guide surface
[0118] 36 Guide pin
[0119] 4 Valve seat
[0120] 41 Pressure chamber entrance channel
[0121] 42 Accommodation
[0122] 43, 43', 43" guide surface
[0123] 5 Adjustment unit
[0124] 51 Thread
[0125] 52 guide receiving portion
[0126] 6 Guide housing
[0127] 61 Main Body
[0128] 62 Fixing screw
[0129] 63 Accommodation
[0130] 7 Pressure Chamber
[0131] 8a, 8b Shearing edge
[0132] 9 Expansion Chamber
[0133] 10 Grooves
[0134] 11 Nozzle
[0135] 12 Dynamic low pressure seals
[0136] 13 Static high pressure seals
[0137] 14 Low pressure seals
[0138] 15 Elastic unit
[0139] 100 Homogenizing valve
[0140] 120 Valve body shell
[0141] 121 Low-pressure room
[0142] 122 Exit Channel
[0143] 123 Exit Channel
[0144] 130 Valve body
[0145] 131 Entrance
[0146] 132 Neck
[0147] 133 Shell surface
[0148] 134 Head
[0149] 135 Cone area
[0150] 140 Valve seat
[0151] 141 Conical section
[0152] 142 Accommodation
[0153] 143 Guide surface
[0154] 144 Head
[0155] 145 channels
[0156] 160 Guide housing
[0157] 161 Main Body
[0158] 162 Fixing screw
[0159] 163 Valve seat receiving portion
[0160] x, y direction
[0161] L Longitudinal axis.
Claims
1. A homogenizing valve (1) for homogenizing a medium under system pressure, comprising: - a valve housing (2) having at least one inlet channel (21) and at least one outlet channel (22) for a medium, a valve seat (4) which is arranged in the valve housing (2) and has a receptacle (42) through which the valve body (3) extends movably in the direction of the longitudinal axis (L), a pressure chamber (7) which is connected to the inlet channel (21) and is formed in a housing (42) of the valve seat (4) and / or in a housing surface (33) of the valve body (3), an adjustment unit (5) operatively connected to the valve body (3), by means of which the axial position of the valve body (3) in the housing (42) can be adjusted, It is characterized in that - the flow resistance in the receptacle (42) can be adjusted by displacement of the valve body (3) in the valve seat (4), -Wherein, between the inner wall of the valve seat (4) forming the accommodating portion (42) and the valve body (3), a shear gap is formed on both sides of the pressure chamber (7) in the displacement direction of the valve body (3), the shear gap being formed by shear blades (8a, 8b) and a conical wall area opposite to the shear blades, and an expansion chamber (9) is formed downstream of the shear gap in the flow direction, and the expansion chamber (9) is connected to the outlet channel (22).
2. The homogenizing valve (1) according to claim 1, characterized in that: A first shearing edge (8a) of the shearing edge close to the adjusting unit (5) has a greater length in the circumferential direction than a second shearing edge (8b) of the shearing edge far from the adjusting unit (5).
3. The homogenizing valve (1) according to claim 1 or 2, characterized in that: When viewed from the longitudinal axis (L) of the valve body (3), the shearing edges (8a, 8b) are double-conical.
4. The homogenizing valve (1) according to any one of claims 1 to 3, characterized in that: The shearing edges (8a, 8b) are positioned, in particular molded or fastened, on the outer shell surface of the valve body (3) between the conical areas of the receiving portion (42) in the displacement direction of the valve body (3).
5. The homogenizing valve (1) according to any one of claims 1 to 3, characterized in that: The shearing edges (8a, 8b) are positioned, in particular molded or fastened, on the inner surface of the valve seat (4) between conical areas of the outer shell surface of the valve body (3) in the displacement direction of the valve body (3).
6. Homogenizing valve (1) according to any one of the preceding claims, characterized in that Guide surfaces (34, 35, 43, 44) are arranged on the inner surface of the valve seat (4) and the outer surface of the valve body (3), wherein a groove (10) connected to the corresponding expansion chamber (9) is arranged on the guide surface (34, 35, 43, 44) of the valve seat (4) and / or the valve body (3).
7. The homogenizing valve (1) according to claim 6, characterized in that: The groove (10) extends linearly parallel to the movement direction of the valve body (3).
8. The homogenizing valve (1) according to claim 6, characterized in that: The groove (10) extends in a curved manner relative to the movement direction of the valve body (3).
9. The homogenizing valve (1) according to any one of claims 6 to 8, characterized in that: The groove (10) is formed on the guide surfaces (33, 34) of the valve body (3).
10. The homogenizing valve (1) according to any one of claims 6 to 8, characterized in that: The groove (10) is formed on the guide surfaces (43, 44) of the valve seat (4).
11. The homogenizing valve (1) according to any one of claims 6 to 10, characterized in that: The guide surfaces (34, 35, 43, 44) of the valve body (3) and the valve seat (4) are conical in the direction of the longitudinal axis (L) of the valve body (3).
12. The homogenizing valve (1) according to any one of claims 6 to 10, characterized in that: The guide surfaces (34, 35, 43, 44) of the valve body (3) and the valve seat (4) are cylindrical in the direction of the longitudinal axis (L) of the valve body (3).
13. Homogenizing valve (1) according to any one of the preceding claims, characterized in that Channels (23, 24) connected to the outlet (22) are provided in the valve housing (2) downstream of the valve body (3).
14. The homogenizing valve (1) according to claim 13, characterized in that: The channels (23, 24) open into a mixing zone of the outlet (22) or into a mixing chamber (25) upstream of the outlet.
15. Homogenizing valve (1) according to any one of the preceding claims, characterized in that The diameters of the conical receiving portion (42) and the portion of the valve body (3) forming the conical outer shell surface (33) are designed to increase toward the regulating unit (5).
16. Homogenizing valve (1) according to any one of the preceding claims, characterized in that The valve seat (4) is designed to be mounted in a receptacle of the valve housing (2) in a non-movable manner, or is designed as a component of the valve housing (2).
17. Homogenizing valve (1) according to any one of the preceding claims, characterized in that An elastic unit (15) is arranged between the adjustment unit (5) and the valve body (3).
18. The homogenizing valve (1) according to claim 17, characterized in that The elastic unit (15) is designed as a spring assembly having at least two disc springs.
19. A homogenizing valve (100) for homogenizing a medium under system pressure, comprising: - a valve housing (120) having at least one outlet channel (122, 123) for a medium, a valve seat (140) arranged in the valve housing (120) along a displacement axis (L) and having an at least partially conical housing (142) in which a valve body (130) fixed to the valve housing (120) is mounted, the valve body having an at least partially conical outer shell surface (133) and an inlet channel (131), a pressure chamber (170) connected to the inlet channel (134), the pressure chamber being molded into the housing (42) of the valve seat (140) and / or into the outer shell surface (133) of the valve body (130), - a regulating unit (150) operatively connected to said valve seat (140), It is characterized in that - the flow resistance in the receptacle (142) can be adjusted by displacement of the valve body (130) in the valve seat (140), -Wherein, between the inner wall of the valve seat (140) forming the accommodating portion (42) and the valve body (130), a shear gap formed by shear blades (8a, 8b) and a wall area that is conical relative to the shear blades is formed on both sides of the pressure chamber (170) in the displacement direction of the valve body (130), and an expansion chamber (9) connected to the outlet channel (22) is formed downstream of the shear gap in the flow direction.