CN211475152U - Throttling device with small pressure loss - Google Patents
Throttling device with small pressure loss Download PDFInfo
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- CN211475152U CN211475152U CN201921657147.2U CN201921657147U CN211475152U CN 211475152 U CN211475152 U CN 211475152U CN 201921657147 U CN201921657147 U CN 201921657147U CN 211475152 U CN211475152 U CN 211475152U
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Abstract
The utility model discloses a throttling arrangement that pressure loss is little belongs to throttling arrangement technical field, including back measuring pipe and preceding measuring pipe, the tip fixed mounting of back measuring pipe one end has flange A, the tip fixed mounting of preceding measuring pipe one end has flange B, a plurality of bolts are installed to circumference on the flange B, circumference runs through on the flange A and offers the screw that is used for cooperating the bolt, equal fixed mounting has the pressure-measuring pipe on back measuring pipe and the preceding measuring pipe, the tip integrated into one piece that flange A was kept away from to back measuring pipe has the grafting ring in advance, grafting ring indent in advance is equipped with the concatenation slot, the central point of concatenation slot puts and is provided with the honeycomb duct with back measuring pipe integrated into one piece, the tip integrated into one piece that flange B was kept away from to preceding measuring pipe has the grafting in advance, the grafting pipe comprises grafting section and current-limiting section in advance. The utility model provides a current orifice plate throttling arrangement pressure loss great and the inconvenient problem of installation, have the little and strong characteristics of leakproofness of pressure loss.
Description
Technical Field
The invention relates to the technical field of throttling devices, in particular to a throttling device with small pressure loss.
Background
At present, the most widely used throttling device is the orifice plate throttling device, and in the existing orifice plate throttling device, the two standard orifice plates are adopted to realize seamless butt joint of the two flow tubes, in the specific installation process, because the two flow tubes cannot be simply pre-matched, the stable butt joint of the two flow tubes is easily influenced in the bolt installation process on the orifice plate, so that the installation efficiency of workers can be influenced, meanwhile, the condition that the resistance is large exists in the throttling device in the process of reducing the fluid diameter, the main reason for causing the pressure loss of the throttling device to be large is realized, the accuracy of a detection structure can be influenced, and therefore the throttling device with small pressure loss needs to be designed urgently.
Disclosure of Invention
The invention aims to solve the defects in the prior art, such as: the existing orifice plate throttling device has large pressure loss and is inconvenient to install.
In order to achieve the purpose, the invention adopts the following technical scheme:
a throttling device with small pressure loss comprises a rear measuring tube and a front measuring tube, wherein a flange A is fixedly arranged at the end part of one end of the rear measuring tube, a flange B is fixedly arranged at the end part of one end of the front measuring tube, a plurality of bolts are circumferentially arranged on the flange B, screw holes for matching the bolts are circumferentially arranged on the flange A in a penetrating mode, pressure measuring tubes are fixedly arranged on the rear measuring tube and the front measuring tube respectively, a pre-joint inserting ring is integrally formed at the end part, away from the flange A, of the rear measuring tube, a pre-joint inserting ring is concavely arranged in the pre-joint inserting ring, a flow guiding tube integrally formed with the rear measuring tube is arranged at the central position of the splicing inserting ring, a pre-joint tube is integrally formed at the end part, away from the flange B, of the front measuring tube, the pre-joint tube consists of a pre-joint section and a flow limiting section, a primary flow passage, run through in the pre-connection section and seted up last runner, just runner, current-limiting runner and current-limiting section communicate in proper order, the outside surface of honeycomb duct and the lateral wall surface of concatenation slot all are provided with sealing thread A, the outside surface of pre-connection section and the inner wall surface of last runner all are provided with the sealing thread B who matches sealing thread A.
Preferably, the flow-limiting flow channel is of a circular truncated cone-shaped structure, and the inner side wall of the flow-limiting flow channel is designed to be streamline.
Preferably, a pre-joint slot is concavely arranged at the end part, far away from the flange B, of the front measuring tube, and the inner diameter of the pre-joint slot is slightly larger than the outer diameter of the pre-joint insert ring.
Preferably, the top end of each piezometric tube is hermetically sleeved with a sealing rubber plug.
Preferably, the bottom of the sealing rubber plug is concavely provided with a threaded blind hole, and the surface of the outer wall of the top of the piezometric tube is provided with an external thread matched with the threaded blind hole.
Preferably, a sealing ring is fixedly arranged on one side opposite to the rear measuring tube and the front measuring tube.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the bolt installation device, the pre-connection of the rear measuring tube and the front measuring tube is realized through the matching of the pre-connection inserting ring, the splicing slot, the flow guide tube, the pre-connection section, the flow limiting section and the pre-connection slot, so that the connection stability of the rear measuring tube and the front measuring tube in the bolt installation process is ensured, the problem of low installation efficiency of workers due to butt joint errors is avoided, and meanwhile, the connection tightness of the rear measuring tube and the front measuring tube is improved;
2. according to the invention, the diameter reduction of the fluid is realized through the matching of the primary flow channel, the flow limiting flow channel and the final flow channel, so that the throttling effect is realized, the shape of the flow limiting flow channel is of a round table structure, and the inner side wall of the flow limiting flow channel is designed to be streamlined, so that the resistance of the water flow during the diameter reduction can be effectively reduced, the pressure loss is reduced, and the accuracy of detection data is improved.
Drawings
FIG. 1 is a schematic structural diagram of a small pressure loss throttling device with an un-assembled front measuring tube and a rear measuring tube;
FIG. 2 is a schematic cross-sectional view of a measuring tube with a low pressure loss after the throttling device according to the present invention;
FIG. 3 is a schematic structural diagram of a measuring tube before a throttling device with small pressure loss according to the present invention;
FIG. 4 is a schematic diagram of the internal structure of a measuring tube before the throttling device with small pressure loss according to the present invention.
In the figure: 1 rear measuring tube, 2 flange A, 3 screw holes, 4 front measuring tubes, 5 bolts, 6 flange B, 7 pressure measuring tubes, 8 sealing rubber plugs, 9 flow guiding tubes, 10 splicing slots, 11 pre-splicing insertion rings, 12 pre-splicing sections, 13 primary flow channels, 14 pre-splicing slots, 15 flow limiting sections, 16 final flow channels and 17 flow limiting flow channels.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-4, a throttling device with small pressure loss comprises a rear measuring tube 1 and a front measuring tube 4, wherein a flange a2 is fixedly installed at the end part of one end of the rear measuring tube 1, a flange B6 is fixedly installed at the end part of one end of the front measuring tube 4, a plurality of bolts 5 are circumferentially installed on the flange B6, screw holes 3 for matching the bolts 5 are circumferentially arranged on the flange a2 in a penetrating manner, a pressure measuring tube 7 is fixedly installed on the rear measuring tube 1 and the front measuring tube 4, a pre-joint inserting ring 11 is integrally formed at the end part of the rear measuring tube 1 far from the flange a2, a splicing slot 10 is concavely arranged in the pre-joint inserting ring 11, a flow guide tube 9 integrally formed with the rear measuring tube 1 is arranged at the central position of the splicing slot 10, a pre-joint tube is integrally formed at the end part of the front measuring tube 4 far from the flange B6, the pre-joint tube consists of a pre-joint section 12 and a flow limiting section 15, a primary flow channel 13, a final flow passage 16 penetrates through the pre-connection section 12, the primary flow passage 13, the flow-limiting flow passage 17 and the flow-limiting section 15 are sequentially communicated, sealing threads A are arranged on the outer side surface of the flow guide pipe 9 and the side wall surface of the splicing slot 10, and sealing threads B matched with the sealing threads A are arranged on the outer side surface of the pre-connection section 12 and the inner wall surface of the final flow passage 16.
It should be noted that, the preconnecting section 12 is inserted into the splicing slot 10, and the front measuring tube 4 is rotated to make the preconnecting section 12 be in threaded sleeve joint with the flow guiding tube 9, and meanwhile, the preconnecting section 12 is also screwed in the splicing slot 10, so as to realize preconnecting between the rear measuring tube 1 and the front measuring tube 4, and then the fixed connection between the rear measuring tube 1 and the front measuring tube 4, and between the flange a2 and the flange B6 is realized by installing a plurality of bolts 5, so as to complete the installation of the whole orifice plate throttling device, and the orifice plate throttling device has the characteristics of simple and convenient installation process and stable installation;
the flow-limiting flow channel 17 is of a round-table-shaped structure, and the inner side wall of the flow-limiting flow channel 17 is designed to be streamline;
what needs to be said is that the resistance of the water flow during reducing can be effectively reduced, thereby reducing the pressure loss and improving the accuracy of the detection data;
wherein, the end part of the front measuring tube 4 far away from the flange B6 is concavely provided with a pre-joint slot 14, and the inner diameter of the pre-joint slot 14 is slightly larger than the outer diameter of the pre-joint insert ring 11;
it should be noted that, when the preconnecting section 12 is in threaded sleeve connection with the flow guide pipe 9, the preconnecting section 12 is also in threaded screw connection with the splicing slot 10, and the preconnecting ring 11 is also inserted into the preconnecting slot 14, so as to complete preconnecting of the rear measuring pipe 1 and the front measuring pipe 4;
wherein, the top end of each piezometric tube 7 is hermetically sleeved with a sealing rubber plug 8;
it should be noted that the sealing rubber plug 8 is used for selectively closing the pressure measuring tube 7, and can be removed when flow measurement is required;
wherein, the bottom of the sealing rubber plug 8 is concavely provided with a threaded blind hole, and the outer wall surface of the top of the piezometric tube 7 is provided with an external thread matching the threaded blind hole;
it should be noted that the sealing rubber plugs 8 can be screwed on the top of the pressure measuring pipe 7 through threaded blind holes, and when fluid flow needs to be detected, the two sealing rubber plugs 8 can be directly screwed off the pressure measuring pipe 7, so that the sealing rubber plug has the characteristics of stable connection and good sealing effect;
wherein, one side of the back measuring tube 1 opposite to one side of the front measuring tube 4 is fixedly provided with a sealing ring;
it should be noted that, after the pre-joint operation of the rear measuring tube 1 and the front measuring tube 4 is completed, the flange a2 and the flange B6 are fixedly connected through the plurality of bolts 5, and at this time, the two sealing rings are tightly attached to each other, so that the sealing effect of the connection between the rear measuring tube 1 and the front measuring tube 4 is ensured.
In the invention, when a user uses the device, a fluid channel is arranged in a cavity 9, fluid enters the fluid channel through a channel 16, a pre-connection section 12 is inserted into a splicing slot 10, the front measuring tube 4 is rotated to enable the pre-connection section 12 to be in threaded sleeve joint with a guide pipe 9, meanwhile, the pre-connection section 12 is also screwed in the splicing slot 10 to realize pre-connection between the rear measuring tube 1 and the front measuring tube 4, then, a plurality of bolts 5 are installed to realize fixed connection between the rear measuring tube 1 and the front measuring tube 4 and between a flange A2 and a flange B6, a pre-connection insertion ring 11 is also inserted in the pre-connection slot 14 to finish pre-connection between the rear measuring tube 1 and the front measuring tube 4, and finish installation of the whole orifice plate throttling device, and the device has the characteristics of simple and convenient installation process and stable installation;
sealed rubber stopper 8 is used for carrying out the selectivity to pressure-measuring pipe 7 and seals, when needs examine the fluid flow, can directly follow pressure-measuring pipe 7 with two sealed rubber stoppers 8 and unscrew, have the stable characteristics with sealed effectual of connection, current-limiting runner 17 is round platform shape structure, and current-limiting runner 17's inside wall design is streamlined, can effectively reduce the resistance that rivers received when the undergauge to reduce the pressure loss, promote the accuracy that detects data.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. The utility model provides a throttling arrangement that pressure loss is little, includes back measurement pipe (1) and preceding measurement pipe (4), the tip fixed mounting of back measurement pipe (1) one end has flange A (2), the tip fixed mounting of preceding measurement pipe (4) one end has flange B (6), a plurality of bolts (5) are installed to circumference on flange B (6), circumference runs through on flange A (2) and sets up screw (3) that are used for cooperating bolt (5), equal fixed mounting has pressure-measuring pipe (7) on back measurement pipe (1) and preceding measurement pipe (4), its characterized in that, the tip integrated into one piece that flange A (2) was kept away from in back measurement pipe (1) has pre-joint insert ring (11), pre-joint insert ring (11) indent is equipped with concatenation slot (10), the central point of concatenation slot (10) puts honeycomb duct (9) with back measurement pipe (1) integrated into one piece, preceding measuring pipe (4) keep away from the tip integrated into one piece of flange B (6) has the pipe of taking over in advance, take over in advance and constitute by taking over section (12) and current-limiting section (15) in advance, run through on flange B (6) and seted up first runner (13), current-limiting runner (17) have been seted up in current-limiting section (15), run through in taking over section (12) in advance and seted up last runner (16), first runner (13), current-limiting runner (17) and current-limiting section (15) communicate in proper order, the outside surface of honeycomb duct (9) and the lateral wall surface of concatenation slot (10) all are provided with sealed screw thread A, the outside surface of taking over section (12) in advance and the inner wall surface of last runner (16) all are provided with the sealed screw thread B who matches sealed screw thread A.
2. A low pressure loss throttling device according to claim 1, wherein said flow restricting flow passage (17) is a truncated cone structure, and the inner side wall of said flow restricting flow passage (17) is streamlined.
3. A low pressure loss throttling device according to claim 1, wherein the end of the front measuring tube (4) remote from the flange B (6) is recessed with a pre-joint socket (14), the inner diameter of the pre-joint socket (14) being slightly larger than the outer diameter of the pre-joint socket ring (11).
4. A low-pressure-loss throttling device according to claim 1, wherein a sealing rubber plug (8) is sleeved on the top end of each piezometric tube (7) in a sealing manner.
5. A low-pressure-loss throttling device according to claim 4, wherein the bottom of the sealing rubber plug (8) is concavely provided with a threaded blind hole, and the outer wall surface of the top of the pressure measuring pipe (7) is provided with an external thread matched with the threaded blind hole.
6. A low pressure loss flow restriction device according to claim 1, wherein a sealing ring is fixedly mounted on the opposite side of the rear measuring tube (1) and the front measuring tube (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921657147.2U CN211475152U (en) | 2019-09-30 | 2019-09-30 | Throttling device with small pressure loss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921657147.2U CN211475152U (en) | 2019-09-30 | 2019-09-30 | Throttling device with small pressure loss |
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| Publication Number | Publication Date |
|---|---|
| CN211475152U true CN211475152U (en) | 2020-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921657147.2U Active CN211475152U (en) | 2019-09-30 | 2019-09-30 | Throttling device with small pressure loss |
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| CN (1) | CN211475152U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112354813A (en) * | 2020-10-30 | 2021-02-12 | 江苏厚生新能源科技有限公司 | Coating method of double-sided coating and double-coating preparation equipment |
| RU213889U1 (en) * | 2021-07-19 | 2022-10-04 | Общество с ограниченной ответственностью "ИРБИКОМ" | THROTTLE WAFER WITH VARIABLE BORE SECTION |
-
2019
- 2019-09-30 CN CN201921657147.2U patent/CN211475152U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112354813A (en) * | 2020-10-30 | 2021-02-12 | 江苏厚生新能源科技有限公司 | Coating method of double-sided coating and double-coating preparation equipment |
| RU213889U1 (en) * | 2021-07-19 | 2022-10-04 | Общество с ограниченной ответственностью "ИРБИКОМ" | THROTTLE WAFER WITH VARIABLE BORE SECTION |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 99, Gongyuan Road, Jiangsu Jinhu Economic Development Zone, Huai'an City, Jiangsu Province, 211600 Patentee after: Jiangsu Leitai Automation Instrument Co.,Ltd. Address before: 211600 No. two, No. 28, Huaian Economic Development Zone, Jinhu, Jiangsu Patentee before: JIANGSU LEITAI AUTOMATION INSTRUMENTATION ENGINEERING CO.,LTD. |
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| CP03 | Change of name, title or address |