Combined high-pressure valve seat

Abstract

The utility model discloses a combined high-pressure valve seat which comprises a high-pressure valve seat sleeve (2) and a high-pressure valve seat core (3), a conical installation cavity (201) is formed in the high-pressure valve seat sleeve (2), the outer wall of the high-pressure valve seat core (3) is of a conical structure and can be embedded in the conical installation cavity (201) in a matched mode, and a material circulation hole (301) is formed in the high-pressure valve seat core (3). And one end of the high-pressure valve seat core (3) extends out of the high-pressure valve seat sleeve (2) to form the combined high-pressure valve seat. The utility model relates to the technical field of valve bodies, in particular to an integrated high-hardness homogenizer high-pressure valve seat which can solve the problems that in the prior art, an integrated high-hardness homogenizer high-pressure valve seat is high in cost and not easy to machine.

Description

Technical Field

[0001] The utility model relates to the technical field of valve bodies, in particular to a combined high-pressure valve seat. Background Art

[0002] The high-pressure valve seat of a homogenizer has relatively high requirements for wear resistance and corrosion resistance, and needs to meet the sanitary requirements. Therefore, the high-pressure valve seat 1 of the existing homogenizer generally adopts a high-hardness material to process an integral valve seat structure, as shown in the attached Figure 1 shown, in the attached Figure 1 the arrow direction is the material flow direction.

[0003] However, in actual use, the high-hardness integral high-pressure valve of a homogenizer has the following disadvantages: high brittleness, easy to be damaged after frequent impact of materials, and needs to be replaced as a whole after damage, difficult to process, expensive materials, high cost, and not easy to be popularized and applied. Therefore, it is necessary to provide a combined high-pressure valve seat that can solve the problems of high cost and difficult processing existing in the integral high-hardness high-pressure valve seat of the existing technology. Summary of the Invention

[0004] The purpose of the utility model is to provide a combined high-pressure valve seat that can solve the problems of high cost and difficult processing existing in the integral high-hardness high-pressure valve seat of the existing technology.

[0005] The utility model is realized as follows:

[0006] A combined high-pressure valve seat includes a high-pressure valve seat sleeve and a high-pressure valve seat core; a conical installation cavity is formed inside the high-pressure valve seat sleeve, the outer wall of the high-pressure valve seat core is in a conical structure and can be fitted into the conical installation cavity in a matching manner, and a material flow hole is formed inside the high-pressure valve seat core; one end of the high-pressure valve seat core extends to the outside of the high-pressure valve seat sleeve to form a combined high-pressure valve seat.

[0007] The conical installation cavity is a conical structure with a large diameter at one end and a small diameter at the other end, and the material flow direction is from the large end of the conical installation cavity to the small end, so that the material impacts on the large end face of the high-pressure valve seat core.

[0008] The high-pressure valve seat sleeve, the conical installation cavity, the high-pressure valve seat core and the material flow hole are coaxially arranged.

[0009] An enlarged hole is formed at one end of the material flow hole close to the large end face, and the enlarged hole is coaxially arranged with the material flow hole and penetrates through the large end face of the high-pressure valve seat core.

[0010] The large end face of the high-pressure valve seat core is located inside the large end of the conical installation cavity to form a concave structure, and the small end of the high-pressure valve seat core is located outside the small end of the conical installation cavity to form a convex structure.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. Since the utility model is provided with a high-pressure valve seat sleeve and a high-pressure valve seat core, the high-pressure valve seat core is assembled into the conical installation chamber of the high-pressure valve seat sleeve by using a conical structure. The high-pressure valve seat core is made of conventional high-hardness materials, with small volume and low cost. The high-pressure valve seat sleeve is made of ordinary stainless steel, with low cost, greatly reducing the manufacturing difficulty and cost. Moreover, the split structure can reduce the use cost by only replacing the high-pressure valve seat core, and the disassembly and assembly are convenient.

[0013] 2. Since the utility model is provided with a high-pressure valve seat sleeve and a high-pressure valve seat core, the small head end of the high-pressure valve seat core protrudes outside the high-pressure valve seat sleeve, which is basically the same as the structure of the integral high-pressure valve seat in the prior art, can meet the assembly and use requirements of the homogenizer in the prior art and achieve the same use effect, the application is not limited, which is conducive to expanding the application and promotion range. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a cross-sectional view of the integral high-pressure valve seat in the prior art;

[0015] Figure 2 is a cross-sectional view of the combined high-pressure valve seat of the utility model.

[0016] In the figure, 1 is the high-pressure valve seat surface of the homogenizer, 2 is the high-pressure valve seat sleeve, 201 is the conical installation chamber, 3 is the high-pressure valve seat core, 301 is the material flow hole, and 302 is the reamed hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The following further illustrates the utility model with reference to the drawings and specific embodiments.

[0018] Please refer to the attached Figure 2 , a combined high-pressure valve seat, including a high-pressure valve seat sleeve 2 and a high-pressure valve seat core 3; a conical installation chamber 201 is formed inside the high-pressure valve seat sleeve 2, the outer wall of the high-pressure valve seat core 3 is in a conical structure and can be fitted into the conical installation chamber 201, and a material flow hole 301 is formed inside the high-pressure valve seat core 3; one end of the high-pressure valve seat core 3 extends outside the high-pressure valve seat sleeve 2 to form a combined high-pressure valve seat.

[0019] The combined high-pressure valve seat adopts a split structure, that is, it is assembled by the high-pressure valve seat sleeve 2 and the high-pressure valve seat core 3. The conical installation chamber 201 of the high-pressure valve seat sleeve 2 cooperates with the conical high-pressure valve seat core 3, and the two are closely attached to form a whole, ensuring the structural integrity and assembly convenience of the combined high-pressure valve seat. Moreover, one end of the high-pressure valve seat core 3 extends outside the high-pressure valve seat sleeve 2, which is roughly the same as the structure of the integral high-pressure valve seat in the prior art, ensuring that the combined high-pressure valve seat can have the same assembly method, use method and effect as the integral high-pressure valve seat in the prior art.

[0020] Preferably, the high-pressure valve seat sleeve 2 is made of ordinary stainless steel material, which has low cost and is easy to process. The high-pressure valve seat core 3 is made of the conventional high-hardness material of an integrated high-pressure valve. The conical high-pressure valve seat core 3 has a simple structure and a small volume, which can reduce the manufacturing difficulty and cost, thereby reducing the overall processing and manufacturing difficulty and cost of the combined high-pressure valve seat. At the same time, only the worn and corroded high-pressure valve seat core 3 needs to be replaced, which is convenient for replacement and can reduce the use cost.

[0021] The described conical installation chamber 201 is a conical structure with a large diameter at one end and a small diameter at the other end, and the flow direction of the material is from the large end of the conical installation chamber 201 to the small end, so that the material impacts on the large end face of the high-pressure valve seat core 3.

[0022] The variable diameter direction of the conical installation chamber 201 is determined according to the material flow direction. The arrow direction in the attached Figure 2 figure is the material flow direction, so as to ensure that the material impacts on the large end face of the high-pressure valve seat core 3 when flowing, and use the variable diameter structure to ensure the reliable assembly between the high-pressure valve seat core 3 and the high-pressure valve seat sleeve 2.

[0023] The described high-pressure valve seat sleeve 2, conical installation chamber 201, high-pressure valve seat core 3 and material flow hole 301 are coaxially arranged, which can meet the flow requirements of the material.

[0024] An enlarged hole 302 is formed at one end of the material flow hole 301 close to the large end face. The enlarged hole 302 is coaxially arranged with the material flow hole 301 and penetrates through the large end face of the high-pressure valve seat core 3, which is convenient for the material to enter the material flow hole 301.

[0025] The large end face of the high-pressure valve seat core 3 is located inside the large end of the conical installation chamber 201, forming an inner concave structure. The small end of the high-pressure valve seat core 3 is located outside the small end of the conical installation chamber 201, forming an outer convex structure.

[0026] Through the large end of the conical installation chamber 201 and the enlarged hole 302, the material can be gradually concentrated towards the material flow hole 301 during the flowing process, which is convenient for the material to flow out through the material flow hole 301. The outer convex length of the small end of the high-pressure valve seat core 3 can be adjusted adaptively according to the actual assembly requirements, so as to form a high-pressure valve form with basically the same structure as the integrated high-pressure valve seat in the prior art, thereby meeting the assembly requirements of the homogenizer in the prior art and achieving the same use effect as the prior art.

[0027] The installation method and working process of the present utility model are the same as those of the integrated high-pressure valve seat in the prior art, and will not be elaborated here.

[0028] Please refer to the attached Figure 2, the working principle of the present utility model is as follows: During the process of material flow, the material first flows into the large-head end of the conical installation chamber 201 of the high-pressure valve seat sleeve 2 and impacts on the large-head end face of the high-pressure valve seat core 3. Since the inner wall of the conical installation chamber 201 and the outer wall of the high-pressure valve seat core 3 are conical structures, and the flow direction of the material is from the large-head end to the small-head end, the high-pressure valve seat core 3 will not displace relative to the high-pressure valve seat sleeve 2, ensuring the stable and reliable structure of the entire combined high-pressure valve seat. Then the material flows out of the combined high-pressure valve seat through the reaming hole 302 and the material flow hole 301 and flows to both sides.

[0029] Due to the impact of the material on the high-pressure valve seat core 3, the high-pressure valve seat core 3 can be made of the conventional high-hardness material of the existing integrated high-pressure valve seat. The high-pressure valve seat sleeve 2 is basically not impacted by the material. Therefore, the high-pressure valve seat sleeve 2 can be made of low-cost materials such as stainless steel, which can reduce the manufacturing cost and difficulty. And when replacing, only the high-pressure valve seat core 3 needs to be replaced, reducing the use cost. At the same time, due to the plug-in assembly between the high-pressure valve seat sleeve 2 and the high-pressure valve seat core 3, the assembly reliability of the two is ensured under the impact of the material on the large-head end face of the high-pressure valve seat core 3.

[0030] During assembly, the high-pressure valve seat core 3 is installed inside the high-pressure valve seat sleeve 2. The conical installation chamber 201 is used to cooperate with the outer wall of the high-pressure valve seat core 3, and the two are closely fitted to form a whole, which is easy to assemble and disassemble for replacement. One end of the high-pressure valve seat core 3 protrudes from the high-pressure valve seat sleeve 2, forming a T-shaped structure similar to the structure of the existing integrated high-pressure valve seat, achieving the same use effect as the structure of the existing integrated high-pressure valve seat, without changing the installation and use methods of the high-pressure valve of the homogenizer, and having a wide application range.

[0031] The above is only the preferred embodiment of the present utility model and is not used to limit the protection scope of the present utility model. Therefore, any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A combined high-pressure valve seat, characterized by: The high-pressure valve seat sleeve (2) and the high-pressure valve seat core (3) are provided; a conical installation chamber (201) is formed inside the high-pressure valve seat sleeve (2); the outer wall of the high-pressure valve seat core (3) is in a conical structure and can be matched and embedded in the conical installation chamber (201); a material flow hole (301) is formed inside the high-pressure valve seat core (3); one end of the high-pressure valve seat core (3) extends to the outside of the high-pressure valve seat sleeve (2) to form a combined high-pressure valve seat.

2. The combined high-pressure valve seat according to claim 1 is characterized in that: The conical installation chamber (201) is a conical structure with a large diameter at one end and a small diameter at the other end, and the material flows in a direction from the large end of the conical installation chamber (201) to the small end, so that the material impacts the large end surface of the high-pressure valve seat core (3).

3. The combined high-pressure valve seat according to claim 1 is characterized in that: The high-pressure valve seat sleeve (2), the conical installation chamber (201), the high-pressure valve seat core (3) and the material flow hole (301) are coaxially arranged.

4. The combined high-pressure valve seat according to claim 1 or 3, characterized in that: An expansion hole (302) is formed at one end of the material circulation hole (301) close to the large end surface. The expansion hole (302) is coaxially arranged with the material circulation hole (301) and penetrates the large end surface of the high-pressure valve seat core (3).

5. The combined high-pressure valve seat according to any one of claims 1 to 3, characterized in that: The large end surface of the high-pressure valve seat core (3) is located inside the large end of the conical installation chamber (201), forming an inner concave structure, and the small end of the high-pressure valve seat core (3) is located outside the small end of the conical installation chamber (201), forming an outer convex structure.

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