CN101922568B - Three-position valve for differential pressure type flowmeter - Google Patents

Three-position valve for differential pressure type flowmeter Download PDF

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Publication number
CN101922568B
CN101922568B CN 200910145800 CN200910145800A CN101922568B CN 101922568 B CN101922568 B CN 101922568B CN 200910145800 CN200910145800 CN 200910145800 CN 200910145800 A CN200910145800 A CN 200910145800A CN 101922568 B CN101922568 B CN 101922568B
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portion
valve
hole
differential pressure
housing
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CN 200910145800
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Chinese (zh)
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CN101922568A (en )
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星要
上田力
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东京计装株式会社
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Abstract

差压流量计用三位阀,能够不会弄错阀的操作顺序。 Differential pressure flow meter with three valves can not be mistaken operation sequence of the valve. 在阀体(11)上,沿轴部(12)配置了阀部(13a、13b),在壳体(14)上设置了内部空间(16)。 On the valve body (11), along the shaft portion (12) of the valve portion arranged (13a, 13b), provided with an internal space (16) on the housing (14). 在阀部(13a)设置了贯通孔(17b)和切入部(18a~18c),在阀部(13b)上设置了贯通(17a)和切入部(18d、18e)。 The valve portion (13a) provided with a through hole (17b) and cut portions (18a ~ 18c), provided with a through (17a) and a cut portion (18d, 18e) on the valve portion (13b). 在图1所示的阀体(11)的第一转动操作位置,阀部(13a、13b)的贯通孔(17a)及(17b)与壳体(14)的通孔(19a、20a)及通孔(19b、20b)一致。 A first operating position rotated through hole, the valve portion (13a, 13b) in the valve body (11) shown in FIG. 1 through holes (17a) and (17b) of the housing (14), (19a, 20a) and the through holes (19b, 20b) is consistent. 在转动了阀体(11)的第二转动操作位置,阀部(13a)的切入部(18a、18b)分别与通孔(19a、20a)连接,阀部(13b)的切入部(18d)与通孔(20b)连接。 Rotating the valve element (11) a second rotational operation position, the valve portion (13a) of the cutting portion (18a, 18b) are respectively connected to the through hole (19a, 20a), a valve portion (13b) of the cutting portion (18 d) connected to the through hole (20b). 在第三转动操作位置,阀部(13a)的切入部(18c)与通孔(20a)连接,阀部(13b)的切入部(18e)与通孔(20b)连接。 In a third rotational operating position, the valve portion (13a) of the cut portion (18c) and a through hole (20a) is connected to the valve portion (13b) of the cutting portion (18e) with a through hole (20b) is connected.

Description

差压流量计用三位阀 Differential pressure flow valve with three

技术领域 FIELD

[0001] 本发明涉及用于将压力导压给差压发信器的操作用的差压流量计用三位阀(日文“三歧阀”)。 [0001] The present invention relates to a pilot pressure for differential pressure is a differential pressure transmitter with a flowmeter operating with a three-way valve (Japanese "three-valve manifold").

背景技术 Background technique

[0002] 在由差压流量计进行的流量测定中,如图4所示,在配管I中配置了节流孔2,在节流孔2的前后的配管I上安装了导压管4a、4b,在这些导压管4a、4b的端部配置了差压发信器5,由差压发信器5的输出测定流量。 [0002] In the flow rate measurement by the differential pressure flow meter, shown in Figure 4, in the pipe I, an orifice 2 is arranged, a pressure guiding tube 4a is mounted in the front of the orifice of the pipe 2 I, 4b, in which the pressure guiding tubes 4a, 4b of the end portion 5 is arranged a differential pressure transmitter, the output flow from the differential pressure transmitter 5 is measured.

[0003] 在此情况下,作为三位阀,在导压管4a、4b的中途分别配置了继流阀6a、6b,进而在使导压管4a、4b彼此连结的连结管7的中途设置了继流阀6c。 [0003] In this case, a three-way valve in the middle of the pressure guiding tube 4a, 4b of the relay valve are arranged 6a, 6b, and further in that the pressure guiding tube 4a, 4b of the connecting pipe connected to one another in the middle of setting 7 following the flow valve 6c.

[0004] 在使用之际,在测定时使继流阀6a、6b打开,使继流阀6c关闭,将节流孔2的前后的差压导向差压发信器5并由差压发信器5进行流量测定。 [0004] In the occasion of use, so when measuring relay valve 6a, 6b opened to 6c relay valve closed, the differential pressure before and after the orifice guide 2 by a differential pressure transmitter is a differential pressure transmitter 5 5 for flow rate measurement. 另外,在差压发信器5的零点调整之际,为了使施加在差压发信器5上的压力均等,将打开继流阀6c,关闭继流阀6a、6b的至少一方来进行。 Further, the zero point adjustment of the differential pressure transmitter 5 occasion, in order that the pressure applied to the differential pressure transmitter 5 is uniformly, the relay valve 6C is opened, closed relay valve 6a, 6b to perform at least one.

[0005] 另外,即使在差压发信器5的开始使用或者恢复使用之际,都不需要只在差压发信器5的受压部的单侧施加大的压力,必须密切注意操作继流阀6a〜6c。 [0005] In addition, even if the differential pressure transmitter is started or reinstated 5 of the occasion, do not need to exert pressure only on one side of the large pressure differential pressure transmitter section 5, the following operations must pay close attention valve 6a~6c.

发明内容发明所要解决的课题 SUMMARY OF THE INVENTION Problems to be solved

[0006] 这样,虽然通过组合3个继流阀6a〜6c的开闭,使流体压力的计测状态、均压状态和导入状态具有各自的功能,但如果弄错各个继流阀6a〜6c的开闭顺序,则有时测定流体的压力只向差压发信器5的受压部的单侧传播,因压力过大而损坏差压发信器5。 [0006] Thus, while following the opening and closing of the valve 6a~6c, the fluid pressure measurement by the combination of state 3, state and introduced into the pressure equalizing state having respective functions, but if the wrong respective relay valves 6a~6c an opening and closing sequence, sometimes measured pressure of the fluid to only one side of the differential pressure propagation pressure receiving portion 5 of the sender, damage due to excessive pressure differential pressure transmitter 5. 另外,存在使存留在导压配管内的密封液向测定管内流出的危险。 Further, there is the danger that the sealing fluid remaining in the pressure guide pipe flows into the measurement tube. 另外,组合这些继流阀6a〜6c做成一体型的差压流量计用三位阀也已被众所周知,但在阀的操作上存在同样的问题。 Further, following the combination of these differential pressure flow valve 6a~6c made integral with a three-way valve has been known, but the same problems in the operation of the valve.

[0007] 本发明的目的在于解决上述的课题,提供不会弄错阀的操作顺序的一体型的差压流量计用三位阀。 [0007] The object of the present invention is to solve the above problems, to provide an integrated sequence of operations unmistakable valve with three-way valve differential pressure flow meter.

为了解决课题的手段 To Solution to Problem

[0008] 为了达到上述目的的本发明的差压流量计用三位阀,其特征在于:具有由具备隔开间隔地配置的截面圆形的第一、第二阀部的轴部构成的阀体和覆盖该阀体的具有圆筒形的内部空间的壳体,在上述壳体上,相对于上述第一、第二阀部而言各形成2个通孔,在上述第一、第二阀部上分别设置与上述壳体的通孔连通的贯通孔,同时,在上述第一阀部上设置与上述通孔连通并且与上述壳体的内部连通的第一、第二、第三切入部,在上述第二阀部上设置与上述通孔连通并且与上述壳体的内部连通的第四、第五切入部,上述阀体可以相对于上述壳体以上述轴部为中心向第一〜第三转动操作位置转动,在上述阀体的上述第一转动操作位置,相对于上述第一、第二阀部而言的各2个上述通孔分别与上述阀部的各个上述贯通孔的出入口部一致,在上述阀体的上述第 [0008] To achieve the above differential pressure flow meter object of the present invention with three valve comprising: a valve having a circular cross section composed of a first shaft portion includes a second valve portion arranged in spaced apart covering the body and the valve housing has a cylindrical inner space in the housing, with respect to the first, second valve portion is formed for each two through-holes, in the first, second through holes are provided through the hole of the valve housing communicating portion, while a first, second, third cut, and communicates with the through hole communicates with the interior of the housing on the first valve portion portion, communicates with the through hole provided in said second valve portion and the fourth, the fifth cut portion communicating with the interior of the housing, the valve body with respect to said housing to center the shaft to the first portion ~ third rotational position of the rotating operation, in the first operating position of the valve body is rotated with respect to each of the two terms of the above-described first through-holes, each of the second valve portion with the through hole of the valve portion, respectively consistent entrance portion of the valve body in the first 二转动操作位置,上述第一阀部的第一、第二切入部分别与相对于上述第一阀部而言的2个上述通孔相一致,上述第二阀部的第四切入部与相对于上述第二阀部而言的上述2个通孔之中的一方一致,同时,上述第一、第二、第四切入部在上述壳体的内部相互连通,在上述阀体的上述第三转动操作位置,上述第一阀部的上述第三切入部与相对于上述第一阀部而言的2个通孔之中的一方一致,上述第二阀部的上述第五切入部与相对于上述第二阀部而言的上述2个通孔之中的上述第三切入部连通的一侧的上述通孔一致,同时,上述第三、第五切入部在上述壳体的内部相互连通。 Two rotating operation position, the first and second cut portion of the first valve part are respectively consistent with respect to the first valve portion 2 in terms of the through hole, the fourth cut portion of the second valve portion opposite consistent with the above-described one among two through-holes in terms of the second valve portion while said first, second, fourth cut portion communicating with each other inside the housing, of the valve body in the third rotational operation position above the third cutting portion of the first valve portion with respect to the one of the two through-holes in terms of the first valve portion coincides with the above-described fifth cutting portion and a second portion with respect to the valve same side of the through hole communicating the portion of the third cut in two through-holes in terms of the second valve portion, while the third, the fifth cut portion communicate with each other inside the housing.

[0009] 根据本发明的差压流量计用三位阀,能够通过使阀体转动来切换内部的阀部,与目的相应地分别创造计测状态、均压状态和导入状态,能够防止因阀操作顺序的弄错而例如只在差压发信器的单侧施加过大压力。 [0009] with a three-way valve can be switched in accordance with the present invention by a differential pressure flow valve body portion inside the rotary valve, respectively, with the purpose of creating a corresponding measurement state, and the state introduced into the pressure equalizing state, the valve can be prevented e.g. wrong operation sequence and excessive pressure is applied only on one side of the differential pressure sender.

[0010] 另外,不用操作者特别注意阀开闭的顺序,就能够保护差压计免受大的压力传递、高温、腐蚀性流体的损害,能够防止封入在差压管内的密封液等的流出。 [0010] Further, the operator need not pay particular attention to the opening and closing sequence of the valve, and differential pressure gauges can be protected from high pressure transmission, the high temperature, corrosive fluid, damage can be prevented from flowing out of the differential pressure pipe is sealed in the sealing liquid and the like .

附图说明 BRIEF DESCRIPTION

[0011] 图1是第一转动操作状态的三位阀的剖视图。 [0011] FIG. 1 is a cross-sectional view of a three-way valve of the first rotation operation state. 图2是第二转动操作状态的三位阀的剖视图。 FIG 2 is a cross-sectional view of a three-way valve of the second rotation operation state. 图3是第三转动操作状态的三位阀的剖视图。 FIG 3 is a sectional view of a third operating state of the rotation of the three-way valve. 图4是现有的差压流量用三位阀的结构图。 FIG 4 is a configuration diagram of a conventional differential pressure flow with three-way valves.

符号说明: Symbol Description:

[0012] 11:阀体12:轴部13:阀部14:壳体17:贯通孔18:切入部19:配管通孔20:发信器通孔21:套管24:配管侧导压管25:发信器侧导压管30:操作杆具体实施方式为了实施发明的优选的方式 [0012] 11: body 12: shaft portion 13: valve unit 14: housing 17: through hole 18: cut part 19: a pipe through hole 20: the sender through-hole 21: casing 24: pipe side pressure guiding tube 25: transmitter-side connecting pipe 30: operating lever BEST mODE fOR CARRYING OUT invention in a manner

[0013] 基于图1〜图3所示的实施例详细地说明本发明。 The present invention is [0013] described in detail based on the embodiment shown in FIG. 1 ~ 3 FIG.

[实施例1] [Example 1]

[0014] 图1〜图3是做成一体型的差压流量计用三位阀的在各动作状态的剖视图,(a)表示纵向剖视图,(b)表示沿BB线的剖视图,(c)表示沿CC线的剖视图。 [0014] FIG. 1 ~ 3 is made of a differential pressure flow meter integrated with a three-way valve is a sectional view in the operating state, (a) shows a longitudinal sectional view, (b) a sectional view taken along line BB represents, (c) a cross-sectional view taken along line CC of FIG.

[0015] 在三位阀的阀体11上,沿轴部12隔开间隔地配置了例如球形的第一、第二阀部13a、13b。 [0015] The three-way valve 11 in the valve body and spaced apart along the shaft portion 12 are arranged, for example a first, a second spherical valve portion 13a, 13b. 另外,在覆盖阀体11的壳体14内,设置了轴支承轴部12的轴孔15和收容阀部13a、13b的圆筒形的内部空间16。 Further, in the housing cover 11 of the valve body 14, the support shaft is provided the shaft hole 12 of the shaft portion of the cylindrical interior space 16 of the valve 15 and the accommodating portions 13a, 13b of.

[0016] 在第一阀部13a上设置了通过中心的贯通孔17a和对表面进行了局部切除的3个第一〜第三切入部18a〜18c,在第二阀部13b上,设置了与第一阀部13a的贯通孔17a平行的贯通孔17b、和2个第四、第五切入部18d、18e。 [0016] provided on the first valve portion 13a through the through hole 17a and the center of the surface of the three first to third cut portion 18a~18c local excision, the second valve portion 13b, is provided with the through hole 17a is parallel to the through hole 13a of the first valve portion 17b, and two fourth, fifth cut portions 18d, 18e.

[0017] 另外,第一阀部13a的第一、第二切入部18a、18b,在径向相对地设置在第一阀部13a的球面上,第二切入部18c与贯通孔17a、第一、第二切入部18a、18b分开地设置。 [0017] Further, the first and second cut portion 13a of the first valve portion 18a, 18b, disposed radially opposite the spherical surface portion 13a of the first valve, the second cut portion 18c and the through hole 17a, a first the second cut portions 18a, 18b are provided separately.

[0018] 另一方面,第二阀部13b的第四切入部18d设置在阀体11的与第一阀部13a的第一切入部18a或第二切入部18b的长度方向一致的部位上,第五切入部18e设置在与第三切入部18c的长度方向一致的部位上。 [0018] On the other hand, the fourth cut portion 18d of the second valve portion 13b provided on the same length of the first cut portion 13a of the second cut portion 18a or 18b of the first valve portion 11 in the direction of the valve body portion, the fifth portion 18e is provided cut in a uniform length of the cut portion of the third portion 18c direction.

[0019] 这些切入部18a〜18e被形成得浅,其一端是终点,其直径被做成与贯通孔17的直径大致同径,而另一端向另一方的阀部13的方向延伸。 [0019] The cut portion is formed to give a pale 18a~18e, which end is the end, which is made with a diameter the diameter of the through hole 17 is substantially the same diameter, and the other end extending toward the other of the valve 13.

[0020] 另外,在壳体14上,与其内部空间16相邻且分别与第一、第二阀部13a、13b相面对地设置了与具备节流孔等节流机构的配管连接的配管通孔19a、19b的入口部,在与这些配通孔19a、19b相向的位置,设置了连接通向差压发信器的导压管的发信器通孔20a、20b的入口部。 [0020] Further, in the housing 14, the inner space 16 adjacent thereto and respectively to the first and second valve portions 13a, 13b disposed to face the pipe connected to the pipe provided with a throttle means of an orifice the through holes 19a, 19b of the inlet portion, with these ligands in the through hole 19a, 19b facing position, the differential pressure set up connections to the sender of the sender of the pressure guiding tube through hole 20a, entrance portion 20b.

[0021] 在壳体14的各个配管通孔19a、19b、发信器通孔20a、20b上,拧入了另一个构件的圆筒状的套管21,这些套管21的前端向内部空间16内突出一些。 [0021] respective pipe through holes 19a, 19b, the sender through hole 20a, upper 20b, is screwed into a further cylindrical member 21 of cannula housing 14, the front end of the sleeve 21 to the interior space within 16 prominent. 而且在这些套管21的与第一、第二阀部13a、13b的表面接触的部分上,安装了圆环状的合成树脂制的密封构件22。 But also in the portion in contact with the first surface of the second valve portion 13a, 13b of the sleeve 21, the annular sealing member is made of synthetic resin 22 is mounted.

[0022] 这些密封构件22,与第一、第二阀部13a、13b的球形部接触而使配管通孔19a、19b、发信器通孔20a、20b内密闭,同时,与第一、第二阀部13a、13b的贯通孔17a、17b的出入口部的周围接触,使得配管通孔19a、19b、发信器通孔20a、20b和贯通孔17a、17b能够不漏地连通。 [0022] The sealing member 22 is in contact with the first spherical portion of the second valve portion 13a, 13b of the pipe through holes 19a, 19b, the sender through holes 20a, 20b within the closed, simultaneously with the first, second valve portion through holes 13a, 13b to 17a, 17b in contact with the periphery of the entrance portion, so that the pipe through holes 19a, 19b, the sender through holes 20a, 20b and the through holes 17a, 17b can communicate not leak.

[0023] 在配管通孔19a、19b上,经法兰23a、23b连接着配管侧导压管24a、24b,由这些配管侧导压管24a、24b能够传递来自夹着节流机构的配管的压力。 [0023] In the pipe through holes 19a, 19b, by a flange 23a, 23b is connected to the pipe side pressure guiding tube 24a, 24b, these pipe side connecting pipe 24a, 24b can be transmitted pipe from sandwiching the throttle mechanism pressure. 另外,在发信器通孔20a、20b上,经法兰25a、25b,由发信器侧导压管26a、26b连接着差压发信器的受压部。 Further, in the sender through holes 20a, 20b, by flanges 25a, 25b, the side guide sender pressure pipe 26a, 26b is connected to the differential pressure receiving portion of the sender.

[0024] 在轴部12的一端设置了法兰27,而在另一端设置了螺纹槽28,依靠与螺纹槽进行螺纹配合的螺母29,轴部12相对于壳体14固定在长度方向上。 [0024] In the end of the shaft portion 12 of the flange 27 is provided, at the other end provided with a screw groove 28 is screwed to rely on the thread grooves of the nut 29, the shaft portion 14 is fixed relative to the housing 12 in the longitudinal direction. 另外,在轴部12的一部分上设置了操作杆30,通过操作此操作杆30,阀体11可以自由转动。 Further, on a portion of the shaft portion 12 of the operating rod 30 is provided, 30, the valve body 11 is free to rotate by operating the operation lever.

[0025] 另外,在轴部12和壳体14之间,在通孔19、20和套管21之间,在法兰23a、23b、25a、25b上,分别配置了O型圈31、32、33,维持着气密状态。 [0025] Further, between the shaft portion 12 and the housing 14, between the through hole 19, 20 and the sleeve 21, on the flange 23a, 23b, 25a, 25b, respectively, O-rings 31 and 32 are arranged 33, the airtight state is maintained.

[0026] 如图1所示,在对操作杆30进行操作而使阀体11相对于壳体14转动的第一转动操作位置,如(b)、(c)所示,第一阀部13a的贯通孔17a与配管通孔19a、发信器通孔20a —致,同时第二阀部13b的贯通孔17b与配管通孔19b、发信器通孔20b —致。 [0026] As shown in FIG. 1, the operation lever 30 is operated so that the first valve element 11 with respect to the rotational operation position of the rotary housing 14, such as (b), (c), the first valve portion 13a the through hole 17a and the pipe through hole 19a, the sender through hole 20a - induced, while the through hole 17b and the pipe through hole 13b of the second valve portion 19b, the sender through hole 20b - induced.

[0027] 这样,通过将阀体11的转动操作位置作为设置在第一、第二阀部13a、13b上的贯通孔17a、17b分别通向差压计测的方向,能够将从节流机构前后的配管侧导压管24a、24b传播的压力经贯通孔17a、17b、发信器侧导压管26a、26b传递给差压发信器的受压部,做成通常的流量测定状态,另外,传递给差压发信器的受压部的压力不同的2种流体,由浓度不同的2种圆点表不。 [0027] Thus, by turning the operating position of the valve body 11 is provided as 13a, 17a, respectively, leading to the differential pressure measuring direction of the through holes 17b and 13b of the first, the second valve portion from the throttle mechanism can be pressure pipe pressure pipe before and after the side guide 24a, 24b propagate through the through holes 17a, 17b, the sender-side connecting pipe 26a, 26b is transmitted to the differential pressure receiving portion of the sender, the flow measurement is typically made of state, Further, transfer to a different portion of the differential pressure receiving sender of two fluids, the concentration of the two types of dots of different table is not.

[0028] 如图2所示,在使阀体11相对于壳体14转动的第二转动操作位置,将第一阀部13a的切入部18a、18b分别与配管通孔19a、发信器通孔20a连接,将第二阀部13b的切入部18d与发信器通孔20b连接。 [0028] As shown in FIG. 2, when the valve element 11 with respect to the rotation of the second housing 14 is rotated operating position, the cut portion 13a of the first valve portion 18a, 18b, respectively, through the pipe through holes 19a, the sender connection hole 20a, the second valve portion 18d and the cut portion 13b of the sender connected to the through hole 20b.

[0029] 由此,由于配管通孔19a、发信器通孔20a、20b经切入部18a、18b、18d、壳体14的内部空间16连通,所以能够将流体的压力同时导向差压发信器的受压部。 [0029] Accordingly, since the communication pipe through holes 19a, the sender through holes 20a, 20b through the cut portion 18a, 18b, 18d, the inner space 16 of the housing 14, it is possible to simultaneously guide a fluid pressure differential pressure transmitter the pressure receiving portion's.

[0030] 如图3所示,在使阀体11相对于壳体14转动的第三转动操作位置,第一阀部13a的切入部18c与发信器通孔20a连接,第二阀部13b的切入部18e与发信器通孔20b连接。 [0030] 3, when the valve element 11 to rotate relative to the housing 14 of the third operation position is rotated, cut portions 18c and the sender through hole 20a of the first valve portion 13a is connected to the second valve portion 13b the cut portion 18e and the through hole 20b connecting the sender.

[0031] 因此,发信器通孔20a、20b经切入部18c、18e、内部空间16连通,将从配管侧的流体向差压部传播的压力断开,使由差压发信器的两侧的受压部承受的压力相等,由此能够进行差压发信器的零点调整。 [0031] Thus, the sender through-holes 20a, 20b cut by the communication unit 18c, 18e, the inner space 16, the pressure fluid from the pipe to the side of the differential pressure propagating unit is disconnected, so that the sender of the differential pressure by the two It is equal to the pressure receiving portion of the pressure side, thereby enabling the zero adjustment of the differential pressure sender.

[0032] 在由操作杆30转动阀体11之际,最好一达到规定的转动位置就能够由“咔嗒”声等识别该位置,以便正确地得到转动位置。 [0032] In the valve element 30 is rotated by the operation lever 11 on the occasion, preferably a predetermined turning position can recognize the position indicated by "clicking" sound, etc. in order to obtain a proper rotational position.

[0033] 另外,在上述的实施例中,将阀部13作为球形进行了说明,但也可以做成截面圆形的圆筒形。 [0033] Further, in the above embodiment, the valve portion 13 has been described as a spherical shape, but may be made into a circular cylindrical cross-section.

Claims (6)

  1. 1.一种差压流量计用三位阀,其特征在于:具有由具备隔开间隔地配置的截面圆形的第一、第二阀部的轴部构成的阀体和覆盖该阀体的具有圆筒形的内部空间的壳体,在上述壳体上,相对于上述第一、第二阀部而言各形成2个通孔,在上述第一、第二阀部上分别设置与上述壳体的通孔连通的贯通孔,同时,在上述第一阀部上设置与上述通孔连通并且与上述壳体的内部连通的第一、第二、第三切入部,在上述第二阀部上设置与上述通孔连通并且与上述壳体的内部连通的第四、第五切入部,上述阀体可以相对于上述壳体以上述轴部为中心向第一〜第三转动操作位置转动,在上述阀体的上述第一转动操作位置,相对于上述第一、第二阀部而言的各2个上述通孔分别与上述阀部的各个上述贯通孔的出入口部连通,在上述阀体的上述第二转动操作位置,上述第一 A three-way valve with a differential pressure flow meter, comprising: a circular cross section having a first, a second valve body shaft portion constituting portion includes spaced apart and arranged in the valve cover a housing having a cylindrical interior space in the housing, with respect to the first, second valve portion is formed for each two through holes are provided on the above-described first, second valve portion a through-hole communicating the through hole of the housing, while the valve is provided on the first portion communicates with the through hole and the first, second, and third cut portion of the interior of the housing in communication, in the second valve disposed in communication with the interior of the housing and communicates with the through hole on the portion of the fourth, fifth cut portion, the valve body with respect to said housing to rotate about the shaft portion of the rotational operation position of the first to third in the first operative position the rotation of the valve body, in communication, in each of the valve with respect to the through hole 2 in terms of the first, second valve portion, respectively each of the inlet and outlet portion through hole of the valve portion said second rotational position of the operation body, the first 部的第一、第二切入部分别与相对于上述第一阀部而言的2个上述通孔相连通,上述第二阀部的第四切入部与相对于上述第二阀部而言的上述2个通孔之中的一方连通,同时,上述第一、第二、第四切入部在上述壳体的内部相互连通,在上述阀体的上述第三转动操作位置,上述第一阀部的上述第三切入部与相对于上述第一阀部而言的2个通孔之中的一方连通,上述第二阀部的上述第五切入部与相对于上述第二阀部而言的上述2个通孔之中的上述第三切入部连通的一侧的上述通孔连通,同时,上述第三、第五切入部在上述壳体的内部相互连通。 First and second cut portions respectively communicating portion with respect to said first valve portion 2 in terms of the through hole, the fourth cut portion and the second valve portion with respect to the second valve portion in terms party communication among the two through-holes, while the first, second, fourth cut portion communicating with each other inside the housing, in the third rotational position of the operating valve, the first valve portion and the third cut portion with respect to one of the two through-holes in terms of the first valve portion in communication with the fifth cut portion and the second portion of the valve for the second valve portion in terms of the the through hole side of the third cut portion communicating among two through-holes in communication, while the third, the fifth cut portion communicate with each other inside the housing.
  2. 2.根据权利要求1所述的差压流量计用三位阀,其特征在于:上述第一、第二阀部做成球形。 2. Differential pressure meter according to claim 1 with a three-way valve, wherein: said first and second valve portion is made spherical.
  3. 3.根据权利要求1所述的差压流量计用三位阀,其特征在于:在与上述内部空间面对的各通孔的入口部,对上述第一、第二阀部的表面配置了密封构件。 3. The differential pressure flow meter of claim 1 with a three-way valve, wherein: the inlet portion of each through-hole and the internal space facing the first surface of the second valve portion arranged a sealing member.
  4. 4.根据权利要求1所述的差压流量计用三位阀,其特征在于:在上述阀体上设置了用于转动操作的操作构件。 Differential pressure flow meter according to claim 1 with the three-way valve, wherein: the operating member is provided for rotating the valve body in operation.
  5. 5.根据权利要求1所述的差压流量计用三位阀,其特征在于:设置了将上述阀体的转动在上述第一、第二、第三转动操作位置卡定的机构。 The differential pressure flow meter according to claim 1 with a three-way valve, wherein: the rotation of said valve element disposed in said first, second, third position of rotational operation of the locking mechanism.
  6. 6.根据权利要求1所述的差压流量计用三位阀,其特征在于:上述阀体的第一转动操作位置用于将流量测定用压力分别导向差压发信器的2个受压部,上述第二转动操作位置用于将均压状态的压力导向上述差压发信器的2个受压部,上述第三转动操作位置用于将来自配管的同一压力导向上述差压发信器的2个受压部。 6. The differential pressure flowmeter according to claim 1 with a three-way valve, wherein: the first rotational operation position of the valve body for guiding the sender differential pressure measurement, respectively two pressure flow pressure portion, the second rotational position for the operating state is guided to the pressure equalizing differential pressure sender two pressure receiving portions, said third rotational operating position for the same pressure from the differential pressure pipe is guided to the transmission 2's pressure-receiving portion.
CN 200910145800 2009-06-11 2009-06-11 Three-position valve for differential pressure type flowmeter CN101922568B (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3894559A (en) 1974-03-28 1975-07-15 Leland Q Depuy Manifold valve
US4977917A (en) 1986-06-06 1990-12-18 Adams Don L Modular differential pressure transmitter/manifold for a fluid conveying pipeline
CN2262145Y (en) 1996-07-11 1997-09-10 陈志坚 Multi-way ball core valve
US6415819B1 (en) 2000-02-21 2002-07-09 Indufil B.V. Switching unit which is composed of a set of switching valves and is suitable for making a first and second medium flow through one of two plate coolers as desired

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3894559A (en) 1974-03-28 1975-07-15 Leland Q Depuy Manifold valve
US4977917A (en) 1986-06-06 1990-12-18 Adams Don L Modular differential pressure transmitter/manifold for a fluid conveying pipeline
CN2262145Y (en) 1996-07-11 1997-09-10 陈志坚 Multi-way ball core valve
US6415819B1 (en) 2000-02-21 2002-07-09 Indufil B.V. Switching unit which is composed of a set of switching valves and is suitable for making a first and second medium flow through one of two plate coolers as desired

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