Three-way shunting and converging integrated pipeline angle valve

Abstract

The utility model relates to a three-way shunting and converging integrated pipeline angle valve which comprises a three-way pipe, two sides of the three-way pipe are connected with a valve body, a valve seat is arranged between the three-way pipe and the valve body, and a valve rod and a valve core which are connected with each other are arranged in the valve body. A sealing cavity, a main flow channel and an auxiliary flow channel which are sequentially communicated are arranged in the valve body, the valve rod slides in the sealing cavity and the main flow channel, the valve element slides in the main flow channel, and a packing pad, a graphite packing, a guide sleeve, a first graphite packing set, a packing spacer bush and a second graphite packing set are sequentially installed in the sealing cavity from inside to outside and fixed through a packing gland and a packing pressing plate. The three-way pipe is of a T-shaped structure, the 135-degree low-flow-resistance valve body is matched with the two manual flushing valves, and the anti-blocking and anti-jamming performance of the valve is excellent.

Description

TECHNICAL FIELD

[0001] The utility model belongs to valve technical field relates to the three -way type shunt and confluence integrated pipeline angle valve. BACKGROUND

[0002] PTA is the English abbreviation of terephthalic acid, which is an important bulk organic material. At present, the mainstream PTA production process in the market mainly adopts the two-step method of PX oxidation and TA refining. TA refining is to dissolve the crude TA delivered from the oxidation device in water and to carry out hydrogenation reaction under high temperature and high pressure, thereby converting the main impurity, p-carboxybenzaldehyde (4-CBA), into p-toluic acid (Pt acid). Since the solubility of Pt acid in water is higher than that of PTA, PTA can be produced through processes such as crystallization, liquid-solid separation and drying.

[0003] In the liquid-solid separation link, a pressurized rotary drum filter (RPF) is mainly used to separate the filter cake and the mother liquor, and the filter cake will enter the rotary vacuum filter and the filter after being further pulped. The conventional filter is respectively provided with three-way type plug valves or ball valves of different structures on the inlet confluence and outlet shunt pipelines to control the opening and closing of the slurry medium, but abnormal conditions such as valve blockage, jamming, packing leakage and poor closing are prone to occur in the use process, which seriously affects the safe and stable operation of the device. Moreover, most of the valves are imported products with various structures, and the procurement and maintenance costs are high, which leads to the decline of the business efficiency of enterprises. SUMMARY

[0004] The utility model aims at providing a three -way type shunt and confluence integrated pipeline angle valve, which can solve the above problems and has good disassembly and maintenance convenience.

[0005] According to the technical scheme provided by the utility model: a three -way type shunt and confluence integrated pipeline angle valve, including three -way pipe, three -way pipe both sides connect valve body, be equipped with valve seat between three -way pipe and valve body, be equipped with the valve stem and the valve core that connect in valve body;Sealing cavity, main flow channel, auxiliary flow channel that are communicated in proper order are equipped in valve body, the valve stem slides in sealing cavity, main flow channel, the valve core slides in main flow channel, filler gasket, graphite packing, guide sleeve, first graphite packing group, packing spacer sleeve, second graphite packing group are installed in sealing cavity from inside to outside in proper order, and are fixed through packing gland, packing pressing plate.

[0006] As a further improvement of the utility model, the packing pressing plate is fastened on the valve body through the pressing plate stud and the pressing plate nut, and the packing pressing plate is pressed against the second graphite packing group through the packing gland.

[0007] As a further improvement of the utility model, the included angle between the main flow channel and the auxiliary flow channel is 135°.

[0008] The inner diameter and the outer diameter of the packing gland are respectively provided with a first O-shaped ring and a second O-shaped ring.

[0009] The first guide belt and the second guide belt are both made of non-metallic wear-resistant material.

[0010] The first guide belt and the second guide belt are both made of non-metallic wear-resistant material.

[0011] The first guide belt and the second guide belt are both made of non-metallic wear-resistant material.

[0012] The first guide belt and the second guide belt are both made of non-metallic wear-resistant material.

[0013] The first guide belt and the second guide belt are both made of non-metallic wear-resistant material.

[0014] The first guide belt and the second guide belt are both made of non-metallic wear-resistant material.

[0015] The first guide belt and the second guide belt are both made of non-metallic wear-resistant material.

[0016] 1. The three-way pipe is of T-shaped structure, and the 135° low-flow-resistance valve body is matched with two manual flush valves, and the valve anti-blocking and anti-jamming performance is excellent.

[0017] 2. The valve core and the valve rod are integrated, the valve core is of disc structure, and the valve rod diameter is greatly reduced compared with the traditional plunger valve shaft diameter, so that sealing is more easily realized.

[0018] 3. The valve packing adopts double-layer graphite packing group and O-shaped ring multiple redundant sealing, effectively deals with slurry medium working condition, and the packing sealing reliability is good.

[0019] 4. The valve adopts valve rod and valve core outer circle double guide design, the part repeated positioning accuracy is good, the valve sealing grade is high, and the Class VI level requirement can be met for a long time.

[0020] 5. The valve meets the functions of shunt and confluence, the structure type is single, the procurement and maintenance cost of the valve can be effectively reduced.

[0021] 6. The valve body and the tee pipe are in a split structure, and are convenient to disassemble and maintain. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a main sectional view of the utility model.

[0023] Figure 2 It is a plan view of the utility model.

[0024] Figure 3 It is a side view of the utility model.

[0025] Figure 4 It is an axial sectional view of the valve body.

[0026] Figure 5 It is an axial measurement view of the valve core and the valve rod.

[0027] Figure 6 It is Figure 1 It is an enlarged view of I.

[0028] Figure 7 It is a shunt principle view of the utility model.

[0029] Figure 8 It is a confluence principle view of the utility model.

[0030] Figures 1-8 The utility model discloses a valve body and a tee pipe, and comprises 1-a tee pipe, 2-a tee pipe fastener, 3-a first valve seat gasket, 4-a valve seat, 5-a second valve seat gasket, 6-a valve seat fastening screw, 7-a valve body, 8-an electric actuator, 9-a valve core, 10-a second manual flush valve, 11-a valve rod, 12-a packing gasket, 13-a graphite packing, 14-a guide sleeve, 15-a first guide band, 16-a first graphite packing group, 17-a packing spacer sleeve, 18-a second graphite packing group, 19-a packing gland, 20-a second guide band, 21-a first O-shaped ring, 22-a second O-shaped ring, 23-a packing pressing plate, 24-a pressing plate stud, 25-a pressing plate nut, 26-a clamping nut, 27-a anti-rotation key, 28-a first manual flush valve and the like. DETAILED DESCRIPTION

[0031] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict. The utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0032] In order to make the technical personnel better understand the scheme of the utility model, the technical scheme in the utility model embodiments will be described clearly and completely below in conjunction with the drawings in the utility model embodiments. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary technical personnel in the art without creative labor should belong to the scope of protection of the utility model.

[0033] It should be noted that the terms "first", "second" and the like in the description and claims of the utility model and the above drawings are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the utility model described herein. In addition, "including" and "having" and similar terms mean that in addition to those listed in "including" and "having", other non-listed contents can also be "including" and "having"; for example, a process, method, system, product or device that can include a series of steps or units, does not have to be limited to those steps or units that have been clearly listed, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0034] Due to the angle of the drawing, some parts may not be drawn, but their positions and connection relationships can be understood according to the textual expression part.

[0035] As shown in Figures 1-3 The utility model is a three-way type shunt and confluence integrated pipeline angle valve, including three-way pipe 1, three-way pipe 1 both sides connect valve body 7, be equipped with valve seat 4 between three-way pipe 1 and valve body 7, be equipped with the valve stem 11 and valve core 9 that connect in valve body 7.

[0036] As shown in Figure 4 Valve body 7 is equipped with sealing cavity, main flow channel 7-1, auxiliary flow channel 7-2 that communicate sequentially, valve stem 11 slides in sealing cavity, main flow channel 7-1, valve core 9 slides in main flow channel 7-1, packing pad 12, graphite packing 13, guide sleeve 14, first graphite packing group 16, packing spacer 17, second graphite packing group 18 are sequentially installed from inside to outside in sealing cavity, as shown in Figure 6 Multiple redundant sealing design, packing sealing good reliability, can long-term satisfy low dispersion emission requirement, and be fixed through packing gland 19, packing plate 23, specifically, packing plate 23 is fastened on valve body 7 through plate stud 24 and plate nut 25, and packing plate 23 is pressed second graphite packing group 18 through packing gland 19.

[0037] The included angle of main flow channel 7-1 and auxiliary flow channel 7-2 is 135 °, and the flow resistance is small.

[0038] The inner diameter and the outer diameter of the packing gland 19 are respectively provided with a first O-ring 21 and a second O-ring 22, the first O-ring 21 seals the gap between the packing gland 19 and the valve stem 11, and the second O-ring 22 seals the gap between the packing gland 19 and the valve body 7.

[0039] The guide sleeve 14 is provided with a first guide belt 15, and the packing gland 19 is provided with a second guide belt 20, both of which are non-metallic wear-resistant materials, and can provide guidance for the valve stem 11 and prevent the valve stem 11 from jamming; the main flow channel 7-1 and the valve core 9 are gap-fitted, also serving as a guide; the double-guide design can improve the repeat positioning accuracy of the parts, the valve sealing level is high, and can meet the Class VI level requirements for a long time.

[0040] The valve stem 11 is driven by the electric actuator 8. Specifically, the electric actuator 8 includes a driving rod, which is connected to the end of the valve stem 11 through a shaft coupling.

[0041] In order to ensure the stability of the connection, the outer end of the valve stem 11 is provided with a thread, a tight nut 26 is sleeved on the thread, and the tight nut 26 is tightly attached to the shaft coupling.

[0042] In order to prevent the valve stem 11 from rotating, a key groove is provided on the outer end of the valve stem 11 and the shaft coupling, and an anti-rotation key 27 is placed in the key groove, as shown in Figure 5 .

[0043] The tee pipe 1 is a T-shaped structure, and the tee pipe 1 is provided with a first channel, a second channel and a third channel connected in communication, the first channel is located between the second channel and the third channel, and the second channel and the third channel connect the valve body 7 through the valve seat 4. The first channel, the second channel and the third channel are the inlet or outlet of the slurry medium, have good flow capacity, and can effectively prevent pipeline blockage.

[0044] The tee pipe 1 and the valve body 7 are connected through the tee pipe fastener 2.

[0045] The valve seat 4 and the tee pipe 1 are provided with a first valve seat gasket 3 for plane sealing; the valve seat 4 and the valve body 7 are provided with a second valve seat gasket 5 for plane sealing; the valve seat 4 and the valve body 7 are connected by a valve seat fastening screw 6 to prevent loosening.

[0046] The valve core 9 and the valve stem 11 are integrated; the valve core 9 is a disc structure, compared with the traditional plunger valve, the sealing shaft diameter of the valve stem 11 is greatly reduced, only 20% to 30% of the shaft diameter of the plunger valve stem with the same diameter, and sealing is easier to achieve.

[0047] The valve body 7 is provided with a first manual flushing valve 28 and a second manual flushing valve 10, which are easy to flush the slurry medium and prevent the valve cavity from being blocked and the valve core 9 from being stuck.

[0048] As shown in the figure, when the valve is used as a diverging valve, the valve core 9 is opened, and the slurry medium flows from the A side to the B side and the C side; when the valve is used as a converging valve, the valve core 9 is opened, and the slurry medium flows from the B side and the C side to the A side; the valve is a three-way diverging and converging integrated structure. Figures 7-8 As shown in the figure, the valve body 7 and the three-way pipe 1 are a split structure, which is convenient for disassembly and maintenance.

[0049] Figures 7-8 As shown in the figure, the valve body 7 and the three-way pipe 1 are a split structure, which is convenient for disassembly and maintenance.

[0050] The working principle of the utility model is: the valve is installed on the pipeline, when the valve is used as a diverging valve, the electric actuator 8 drives the valve rod 11 and the valve core 9 to make linear motion, the valve core 9 is opened, and the slurry medium flows from the A side to the B side and the C side; when the valve is used as a converging valve, the electric actuator 8 drives the valve rod 11 and the valve core 9 to make linear motion, the valve core 9 is opened, and the slurry medium flows from the B side and the C side to the A side; the valve can realize three-way diverging and converging functions. The three-way pipe 1 is a T-shaped structure, has good flow capacity, and prevents the pipeline from being blocked. The valve body 7 has an angle of 135°, has small flow resistance, and is not easy to be blocked; but when the inner cavity of the valve body 7 is blocked by slurry, the first manual flushing valve 28 and the second manual flushing valve 10 can be opened for flushing, so as to prevent the valve from being stuck. The valve body 7 is provided with the valve core 9 and the valve rod 11, wherein the valve core 9 is a disc type structure, compared with the traditional plunger valve, the sealing shaft diameter of the valve rod is greatly reduced, is only 20% to 8% of the sealing shaft diameter of the valve rod of the same diameter plunger valve, and sealing is more easily realized. The valve body 7 is provided with a packing spacer 17 and a packing gland 19, the first graphite packing group 16 and the second graphite packing group 18 are respectively installed on the two sides of the packing spacer 17, and the first O-shaped ring 21 and the second O-shaped ring 22 are respectively arranged in the inside and the outside of the packing gland 19, multiple redundant sealing design, packing sealing has good reliability, effectively deals with solid medium working condition, and ensures that the valve can long-term satisfy low fugitive emission requirements. The valve body 7 is provided with a guide sleeve 14 and the packing gland 19, the first guide belt 15 is arranged in the guide sleeve 14, the second guide belt 20 is arranged in the packing gland 19, and the first guide belt 15 and the second guide belt 20 are non-metallic wear-resistant materials, the first guide belt 15 and the second guide belt 20 can provide guidance for the valve rod 11 and prevent the valve rod 11 from being stuck. The valve body 7 is provided with a main flow channel 7-1, the main flow channel 7-1 can provide guidance for the valve core 9; when the electric actuator 8 drives the valve rod 11 and the valve core 9 to make opening and closing action, the double-guide design can improve the repeated positioning accuracy of the parts, and ensure that the valve can long-term satisfy Class VI sealing level requirements.

[0051] ​It can be understood that the above implementation is only an exemplary embodiment for illustrating the principle of the present application, but the present application is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present application, and these modifications and improvements are also considered as the protection scope of the present application.

Claims

1. A tee type diverging and converging integrated pipeline angle valve, characterized in that, The utility model relates to a three-way valve, which comprises a three-way pipe (1), a valve body (7) connected to the two sides of the three-way pipe (1), a valve seat (4) arranged between the three-way pipe (1) and the valve body (7), a valve rod (11) and a valve core (9) arranged in the valve body (7) and connected to each other, a sealing cavity, a main flow channel (7-1) and a secondary flow channel (7-2) sequentially communicated in the valve body (7), the valve rod (11) sliding in the sealing cavity and the main flow channel (7-1), the valve core (9) sliding in the main flow channel (7-1), a packing pad (12), a graphite packing (13), a guide sleeve (14), a first graphite packing group (16), a packing spacer sleeve (17) and a second graphite packing group (18) sequentially arranged from inside to outside in the sealing cavity and fixed by a packing gland (19) and a packing plate (23).

2. The tee-type diverging and converging integrated line angle valve according to claim 1, wherein The packing plate (23) is fastened to the valve body (7) by a plate stud (24) and a plate nut (25), and the packing plate (23) presses the second graphite packing group (18) by the packing gland (19).

3. The tee-type diverging and converging integrated line angle valve according to claim 1, wherein The included angle between the main flow channel (7-1) and the secondary flow channel (7-2) is 135°.

4. The tee-type diverging and converging integrated line angle valve according to claim 1, wherein The inner diameter and the outer diameter of the packing gland (19) are respectively provided with a first O-shaped ring (21) and a second O-shaped ring (22).

5. The tee-type diverging and converging integrated line angle valve according to claim 1, wherein The guide sleeve (14) is provided with a first guide belt (15) and the packing gland (19) is provided with a second guide belt (20).

6. The tee-type flow dividing and combining integrated line angle valve according to claim 5, characterized in that, The first guide belt (15) and the second guide belt (20) are both made of non-metallic wear-resistant material.

7. The tee-type flow dividing and combining integrated line angle valve according to claim 5, wherein The main flow channel (7-1) and the valve core (9) are in clearance fit.

8. The tee-type flow dividing and combining integrated line angle valve according to claim 1, characterized in that, The valve rod (11) is driven by an electric actuator (8), the electric actuator (8) comprises a driving rod, the driving rod is connected to the end of the valve rod (11) by a shaft coupling, the outer end of the valve rod (11) is provided with a thread, a tight nut (26) is sleeved on the thread and tightly abuts against the shaft coupling, the outer end of the valve rod (11) and the shaft coupling are provided with a key groove, and an anti-rotation key (27) is arranged in the key groove.

9. The tee-type flow dividing and combining integrated line angle valve according to claim 1, characterized in that, The three-way pipe (1) has a T-shaped structure, the three-way pipe (1) is provided with a first channel, a second channel and a third channel in communication, the first channel is located between the second channel and the third channel, the second channel and the third channel are connected to the valve body (7) through the valve seat (4), and the three-way pipe (1) is connected to the valve body (7) by a three-way pipe fastener (2).

10. The tee-type flow dividing and combining integrated line angle valve according to claim 1, characterized in that, The valve body (7) is provided with a first manual flush valve (28) and a second manual flush valve (10), the output port of the first manual flush valve (28) faces the secondary flow channel (7-2), and the output port of the second manual flush valve (10) faces the outer port of the main flow channel (7-1).

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