Hydrogen chloride distributor distribution head in high-boiling cracking production
By designing the distribution head of the hydrogen chloride distributor and utilizing the float and leakage hole structure, the problem of distribution pipe blockage was solved, achieving uniform gas distribution and improving production capacity.
Patent Information
- Application Number
- CN202422807357.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-18
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-11-18
AI Technical Summary
During the high-boiling cracking production process, the distribution pipe of the hydrogen chloride distributor is clogged by silicon slag, resulting in uneven gas distribution, reducing production capacity and reaction rate, and requiring frequent shutdown and maintenance.
A distribution head for a hydrogen chloride distributor is designed, which includes a distribution head check valve and a floating ball that can float up and down. The number of air holes is adjusted by the buoyancy and gravity of the floating ball, and the leakage hole design is combined to avoid material blockage.
Effectively avoid or reduce material blockage in the distribution pipe, extend the production cycle and improve production capacity.
Smart Images
Figure CN223351625U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of chemical production, in particular to a distribution head of a hydrogen chloride distributor in high-boiling cracking production. Background Art
[0002] Currently, in the high-boiling cracking production process, there is no distribution head in the area where the distribution pipe of the hydrogen chloride distributor is in full contact with the high-boiling substance (such as chlorosilane liquid). Instead, air holes are opened directly on the distribution pipe. Although the structure is simple, silicon slag will enter the distribution pipe from the air holes during the reaction, gradually accumulate in the distribution pipe, and block the air holes of the distribution pipe, resulting in uneven gas distribution or reduced air intake, which reduces production capacity and reaction rate, and requires regular shutdown, inspection and cleaning. Summary of the Invention
[0003] The purpose of the utility model is to overcome the above-mentioned shortcomings and provide a distribution head for a hydrogen chloride distributor in high-boiling cracking production, which can effectively avoid or reduce material blockage in the distribution pipe, extend the production cycle and improve production capacity.
[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a distribution head of a hydrogen chloride distributor in high-boiling cracking production, including a distribution head check valve connected to a distribution pipe, the bottom of the distribution head check valve is connected to the top of the distribution head air pipe, a plurality of distribution head air holes are opened on the side of the distribution head air pipe, and a float that can float up and down is provided inside the distribution head check valve and the distribution head air pipe.
[0005] Preferably, the distribution head check valve includes a distribution head float seat, which is open at the top and bottom and hollow inside, and is a hollow frustum structure that is narrow at the top and wide at the bottom. The diameter of the top of the distribution head float seat is smaller than the diameter of the float, and the diameter of the bottom of the distribution head float seat is larger than the diameter of the float.
[0006] Preferably, the top of the distribution head float seat is threadedly matched with the distribution pipe through an upper threaded tube, and the bottom of the distribution head float seat is threadedly matched with the top of the distribution head air pipe through a lower threaded tube.
[0007] Preferably, the diameters of the distribution head air holes opened on the side of the distribution head air pipe increase sequentially from top to bottom.
[0008] Preferably, a leakage hole is provided at the bottom of the air pipe of the distribution head.
[0009] Preferably, a boss is further provided near the leakage hole.
[0010] Beneficial effects of the utility model: the utility model can effectively avoid or reduce the blockage of materials in the distribution pipe, extend the production cycle, and improve the production capacity. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 This is a structural schematic diagram of a hydrogen chloride distributor head used in high-boiling cracking production. DETAILED DESCRIPTION
[0012] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.
[0013] like Figure 1 As shown, a distribution head of a hydrogen chloride distributor in high-boiling cracking production includes a distribution head check valve 2 connected to a distribution pipe 1. The bottom of the distribution head check valve 2 is connected to the top of the distribution head air pipe 3. A plurality of distribution head air holes 4 are opened on the side of the distribution head air pipe 3. A float 5 that can float up and down is provided inside the distribution head check valve 2 and the distribution head air pipe 3.
[0014] Preferably, the distribution head check valve 2 includes a distribution head float seat 2.1. The distribution head float seat 2.1 is open at the top and bottom, hollow inside, and has a hollow frustum structure that is narrow at the top and wide at the bottom. The diameter of the top of the distribution head float seat 2.1 is smaller than the diameter of the float 5, and the diameter of the bottom of the distribution head float seat 2.1 is larger than the diameter of the float 5. In this embodiment, the distribution pipe 1 is immersed in chlorosilane liquid. The liquid enters the distribution head check valve 2 and the distribution head air pipe 3 through the distribution head air holes 4, thereby generating buoyancy on the float 5. When the hydrogen chloride gas feed valve is opened wide, the float is subjected to the impact force of the hydrogen chloride gas above and its own gravity, overcoming the buoyancy and moving downward, increasing the number of hydrogen chloride gas outlet holes. When the hydrogen chloride gas feed valve is opened narrowly, the float, under the action of buoyancy, overcomes gravity and the impact force of the gas and moves upward, reducing the number of hydrogen chloride gas outlet holes, thereby meeting the gas distribution requirements under different production loads.
[0015] Preferably, the top of the distribution head float seat 2.1 is threadedly engaged with the distribution pipe 1 through an upper threaded tube 2.2, and the bottom of the distribution head float seat 2.1 is threadedly engaged with the top of the distribution head air pipe 3 through a lower threaded tube 2.3. This threaded engagement facilitates installation and disassembly and maintenance.
[0016] Preferably, the diameter of the distribution head air holes 4 opened on the side of the distribution head air pipe 3 increases from top to bottom. This design can meet the gas distribution requirements under different production loads.
[0017] Preferably, a leakage hole 6 is provided at the bottom of the distribution head air pipe 3. The leakage hole 6 allows the silicon slag entering the distribution head air pipe 3 to be discharged through the leakage hole 6 under the action of gravity or air flow pressure, so as not to accumulate in the distribution head air pipe 3.
[0018] Preferably, a boss 7 is further provided near the leakage hole 6. The setting of the boss 7 can ensure that the bottom leakage hole 6 can discharge slag normally when the air volume is large, and avoid affecting the slag discharge process due to the float being too close to the leakage hole 6.
[0019] The working principle of this embodiment is as follows:
[0020] In this embodiment, the distribution pipe 1 is immersed in chlorosilane liquid. The liquid enters the distribution head check valve 2 and the distribution head air pipe 3 through the distribution head air hole 4, thereby generating buoyancy on the float 5. When the hydrogen chloride gas feed valve is opened, the float is subjected to the impact force of the hydrogen chloride gas above and its own gravity, overcoming the buoyancy and moving downward, and the number of hydrogen chloride gas outlet air holes will increase. When the hydrogen chloride gas feed valve is opened, the float moves upward under the action of buoyancy, overcoming the gravity and gas impact force, and the number of hydrogen chloride gas outlet air holes will decrease, thereby meeting the gas distribution requirements under different production loads. When production is stopped, the float, under the action of buoyancy, overcomes its own gravity and moves upward, eventually blocking the top of the distribution head float seat 2.1, thereby closing the distribution head check valve 2. Silicon slag cannot reversely enter the distribution pipe 1 through the distribution head air pipe 3 and the distribution head check valve 2. This can effectively avoid or reduce material blockage in the distribution pipe 1, extend the production cycle, and improve production capacity.
[0021] The above embodiments are merely preferred technical solutions of the present invention and should not be construed as limiting the present invention. The scope of protection of the present invention shall be the technical solutions set forth in the claims, including equivalent alternatives to the technical features of the technical solutions set forth in the claims. Equivalent alternatives and improvements within this scope are also within the scope of protection of the present invention.
Claims
1. A hydrogen chloride distributor head for high-boiling cracking production, comprising a distribution head check valve (2) connected to a distribution pipe (1), characterized in that: The bottom of the distribution head check valve (2) is connected to the top of the distribution head air pipe (3), a plurality of distribution head air holes (4) are provided on the side of the distribution head air pipe (3), and a floating ball (5) capable of floating up and down is provided inside the distribution head check valve (2) and the distribution head air pipe (3).
2. The hydrogen chloride distributor head for high-boiling cracking production according to claim 1, characterized in that: The distribution head check valve (2) comprises a distribution head float seat (2.1), the distribution head float seat (2.1) is open at the top and bottom, is hollow inside, and is a hollow frustum structure that is narrow at the top and wide at the bottom. The diameter of the top of the distribution head float seat (2.1) is smaller than the diameter of the float (5), and the diameter of the bottom of the distribution head float seat (2.1) is larger than the diameter of the float (5).
3. The hydrogen chloride distributor head for high-boiling cracking production according to claim 2, characterized in that: The top of the distribution head float seat (2.1) is threadedly engaged with the distribution pipe (1) via an upper threaded tube (2.2), and the bottom of the distribution head float seat (2.1) is threadedly engaged with the top of the distribution head air pipe (3) via a lower threaded tube (2.3).
4. The hydrogen chloride distributor head for high-boiling cracking production according to claim 1, characterized in that: The distribution head air holes (4) opened on the side of the distribution head air pipe (3) have diameters that increase sequentially from top to bottom.
5. The hydrogen chloride distributor head for high-boiling-point cracking production according to claim 1, characterized in that: A liquid leakage hole (6) is provided at the bottom of the distribution head air pipe (3).
6. The hydrogen chloride distributor head for high-boiling-point cracking production according to claim 5, characterized in that: A boss (7) is also provided near the leakage hole (6).