Self-operated flow control valve with temperature measuring structure

Abstract

The application relates to the technical field of control valves, in particular to a self-operated flow control valve with a temperature measuring structure, which comprises a control valve body, an inner partition valve seat, a rotating groove, a valve seat arc groove, an adjusting disc, a heat-conducting mounting sleeve and a contact type temperature sensor, the inside of the control valve body is provided with the inner partition valve seat, the upper surface of the inner partition valve seat is provided with the rotating groove, the inside lower surface position of the rotating groove is provided with the valve seat arc groove in a penetrating mode, and the inside of the rotating groove is rotationally provided with the adjusting disc; the self-operated flow control valve with the temperature measuring structure can control the flow opening degree through the adjusting disc, can increase the pressure of the adjusting disc on the inner partition valve seat by utilizing the hydraulic pressure in the valve in a completely closed state, and can improve the sealing performance; and through the elastic holding mechanism, when the whole sealing rubber gasket is abraded and thinned, the adjusting disc can be automatically moved downward by utilizing the elastic force of the sealing spring, so that the abrasion gap can be compensated.

Description

Technical Field

[0001] This invention relates to the field of control valve technology, specifically to a self-operated flow control valve with a temperature measuring structure. Background Technology

[0002] A flow control valve is a type of liquid flow limiting valve that controls the flow rate of a liquid by changing the flow cross-sectional area inside the valve body. In practical use, flow control valves with existing technology are prone to wear of their internal rubber sealing components in environments with frequent adjustments. When the rubber components are worn, problems such as incomplete sealing may occur. Summary of the Invention

[0003] The purpose of this invention is to provide a self-operated flow control valve with a temperature measuring structure to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a self-operated flow control valve with a temperature measuring structure, comprising a control valve body, an inner valve seat, a rotating groove, a valve seat arc groove, an adjusting disc, a heat-conducting mounting sleeve, and a contact temperature sensor. The control valve body has an inner valve seat inside, the upper surface of which has a rotating groove, and the lower surface of which has a valve seat arc groove. An adjusting disc is rotatably mounted inside the rotating groove, and a heat-conducting mounting sleeve is fixedly mounted on the upper surface of the adjusting disc. A contact temperature sensor is inserted and fixedly mounted inside the heat-conducting mounting sleeve. A spring-loaded holding mechanism is provided at the lower part of the adjusting disc, and a drive mechanism with vertical movement and separation function is provided at the upper part of the adjusting disc.

[0005] The elastic holding mechanism includes a pull shaft hole, a connecting pull shaft, a spring clamp, a sealing spring, and a nut.

[0006] A pull shaft hole is provided through the center of the lower inner surface of the rotating groove, and a connecting pull shaft is fixedly provided on the lower surface of the adjusting plate. The connecting pull shaft passes through the pull shaft hole and extends into the lower part of the inner valve seat.

[0007] A spring clamp is fitted onto the outer surface of the connecting shaft, and a nut is screwed onto the outer surface of the connecting shaft. The nut is located at the lower part of the spring clamp. A sealing spring is fitted and fixed onto the outside of the connecting shaft. The sealing spring is sandwiched between the spring clamp and the lower surface of the inner valve seat.

[0008] The drive mechanism includes a limiting tube, an internal hexagonal cavity, a hexagonal prism, a rotating optical axis, a sealing groove, a rubber ring, a limiting ring, a worm gear, a worm, a protective shell, an adjusting crossbar, and a crossbar nut.

[0009] The limiting tube is fixedly installed on the upper surface of the adjusting plate. The limiting tube has an internal hexagonal cavity, and a hexagonal prism is inserted inside the internal hexagonal cavity. The upper end of the hexagonal prism is fixedly installed with the rotating optical axis.

[0010] The control valve body has a sealing groove inside, and a rubber ring is fixed inside the sealing groove. The rotating optical shaft passes through the rubber ring and is in sealing contact with it. A limit ring is fixedly installed on the outer surface of the rotating optical shaft.

[0011] The upper end of the rotating optical shaft extends to the outside of the control valve body. A worm gear is fixedly installed on the upper surface of the rotating optical shaft. The worm and the worm gear mesh with each other. A protective shell is fixedly installed on the upper surface of the control valve body. The worm gear and the worm are both located inside the protective shell. An adjusting crossbar is fixedly installed at one end of the worm. The adjusting crossbar passes through the side wall of the protective shell and extends to the outside of the protective shell. A crossbar cap is fixedly installed at the end of the adjusting crossbar.

[0012] Both ends of the control valve body are respectively provided with an inlet end and an outlet end. The surface of the regulating disc is provided with a flow-limiting arc groove running through it. The flow-limiting arc groove corresponds to the arc groove of the valve seat. Both are arc-shaped through grooves with the same arc diameter and the same axis. A sealing gasket is attached and fixed to the lower surface of the regulating disc. The surface of the heat-conducting mounting sleeve is provided with a liquid-permeable groove running through it.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] This invention relates to a self-regulating flow control valve with a temperature measuring structure. The flow opening is controlled by an adjustable disc. In the fully closed state, the hydraulic pressure inside the valve increases the pressure of the adjustable disc on the inner valve seat, improving the sealing performance. Furthermore, the elastic holding mechanism allows the adjustable disc to automatically move down when the sealing gasket wears and thins, compensating for the wear gap and preventing leakage problems after prolonged use.

[0015] By using the adjustable disc in conjunction with the heat-conducting mounting sleeve, the adjustable disc can be used as a heat-conducting carrier to increase the temperature detection area of ​​the contact temperature sensor, thereby making the temperature monitoring data obtained by the contact temperature sensor more accurate. In addition, the adjustable disc does not contact the inner diaphragm valve seat through the sealing gasket, which can prevent the external temperature from increasing the measurement error through the conduction of the control valve body and the inner diaphragm valve seat. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 This is a three-dimensional half-sectional schematic diagram of the present invention.

[0018] Figure 3 This is a three-dimensional half-section front view of the present invention.

[0019] Figure 4 This is a front view of the overall structure of the present invention.

[0020] Figure 5 for Figure 4 Cross-sectional view at point AA.

[0021] In the diagram: 1. Control valve body; 2. Inner valve seat; 3. Rotary groove; 4. Valve seat arc groove; 5. Adjusting disc; 6. Thermally conductive mounting sleeve; 7. Contact temperature sensor; 201. Pull shaft hole; 202. Connecting pull shaft; 203. Spring clamp; 204. Sealing spring; 205. Nut; 501. Limiting tube; 502. Internal hexagonal cavity; 503. Hexagonal prism; 504. Rotating optical axis; 505. Sealing groove; 506. Rubber ring; 507. Limiting ring; 508. Worm gear; 509. Worm; 510. Protective shell; 511. Adjusting crossbar; 512. Crossbar cap; 101. Liquid inlet end; 102. Liquid outlet end; 513. Flow limiting arc groove; 514. Sealing gasket; 601. Liquid permeation groove. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see Figures 1 to 5 This invention provides a technical solution: a self-operated flow control valve with a temperature measuring structure, comprising a control valve body 1, an inner valve seat 2, a rotating groove 3, a valve seat arc groove 4, an adjusting disc 5, a heat-conducting mounting sleeve 6, and a contact temperature sensor 7. The control valve body 1 is provided with an inner valve seat 2. The upper surface of the inner valve seat 2 is provided with a rotating groove 3. The lower surface of the rotating groove 3 is provided with a valve seat arc groove 4. The adjusting disc 5 is rotatably arranged inside the rotating groove 3. The heat-conducting mounting sleeve 6 is fixedly arranged on the upper surface of the adjusting disc 5. The contact temperature sensor 7 is inserted and fixed inside the heat-conducting mounting sleeve 6. The lower part of the adjusting disc 5 is provided with an elastic holding mechanism, and the upper part of the adjusting disc 5 is provided with a drive mechanism with up-and-down movement and separation function.

[0024] The elastic holding mechanism includes a pull shaft hole 201, a connecting pull shaft 202, a spring clamp 203, a sealing spring 204, and a nut 205.

[0025] A pull shaft hole 201 is provided through the center of the lower inner surface of the rotating groove 3. A connecting pull shaft 202 is fixedly provided on the lower surface of the adjusting plate 5. The connecting pull shaft 202 passes through the pull shaft hole 201 and extends into the lower part of the inner diaphragm valve seat 2.

[0026] A spring chuck 203 is fitted onto the outer surface of the connecting shaft 202, and a nut 205 is screwed onto the outer surface of the connecting shaft 202. The nut 205 is located at the lower part of the spring chuck 203. A sealing spring 204 is fitted and fixed onto the outside of the connecting shaft 202. The sealing spring 204 is sandwiched between the spring chuck 203 and the lower surface of the inner valve seat 2.

[0027] The drive mechanism includes a limiting tube 501, an internal hexagonal cavity 502, a hexagonal prism 503, a rotating optical shaft 504, a sealing groove 505, a rubber ring 506, a limiting ring 507, a worm gear 508, a worm 509, a protective shell 510, an adjusting crossbar 511, and a crossbar nut 512.

[0028] The limiting tube 501 is fixedly installed on the upper surface of the adjusting plate 5. The limiting tube 501 has an internal hexagonal cavity 502. A hexagonal prism 503 is inserted inside the internal hexagonal cavity 502. The upper end of the hexagonal prism 503 is fixedly installed with the rotating optical axis 504.

[0029] The control valve body 1 has a sealing groove 505 inside, and a rubber ring 506 is fixedly fitted inside the sealing groove 505. The rotating optical shaft 504 passes through the rubber ring 506 and is in sealing contact with it. A limit ring 507 is fixedly installed on the outer surface of the rotating optical shaft 504.

[0030] The upper end of the rotating optical shaft 504 extends to the outside of the control valve body 1. A worm gear 508 is fixedly installed on the upper surface of the rotating optical shaft 504. The worm 509 meshes with the worm gear 508. A protective shell 510 is fixedly installed on the upper surface of the control valve body 1. The worm gear 508 and the worm 509 are both located inside the protective shell 510. An adjusting crossbar 511 is fixedly installed at one end of the worm 509. The adjusting crossbar 511 passes through the side wall of the protective shell 510 and extends to the outside of the protective shell 510. A crossbar cap 512 is fixedly installed at the end of the adjusting crossbar 511.

[0031] Both ends of the control valve body 1 are respectively provided with an inlet end 101 and an outlet end 102. The surface of the regulating plate 5 is provided with a flow-limiting arc groove 513 through the top and bottom. The flow-limiting arc groove 513 corresponds to the valve seat arc groove 4. Both are arc-shaped through grooves with the same arc diameter and the same axis. A sealing gasket 514 is attached and fixed to the lower surface of the regulating plate 5. The surface of the heat-conducting mounting sleeve 6 is provided with a liquid permeable groove 601 through the top.

[0032] In use, the rotating crossbar cap 512 drives the worm gear 508 to rotate via the worm 509, thereby causing the hexagonal prism 503 to drive the adjusting disc 5 to rotate. When the flow-limiting arc groove 513 and the valve seat arc groove 4 are aligned... Figure 2 As shown, the more the two overlap, the larger the valve opening, thus achieving flow control.

[0033] In the fully closed state, the hydraulic pressure inside the valve increases the pressure of the regulating disc 5 on the inner diaphragm seat 2, improving the sealing performance; and through the set elastic holding mechanism, when the sealing gasket 514 is worn and thinned as a whole, the elastic force of the sealing spring 204 can make the regulating disc 5 automatically move down to compensate for the wear gap.

[0034] The contact temperature sensor 7 increases the temperature detection area of ​​the contact temperature sensor 7 by conducting through the heat-conducting mounting sleeve 6 and using the adjustment plate 5 as a heat-conducting carrier, thereby making the temperature monitoring data obtained by the contact temperature sensor 7 more accurate. In addition, the adjustment plate 5 does not contact the inner diaphragm valve seat 2 through the sealing gasket 514, which can avoid the external temperature from increasing the measurement error through the conduction of the control valve body 1 and the inner diaphragm valve seat 2. Furthermore, the surface of the heat-conducting mounting sleeve 6 is provided with a liquid permeation groove 601, which allows the liquid to directly contact the contact temperature sensor 7 through the liquid permeation groove 601 to achieve temperature detection.

[0035] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-operated flow control valve with a temperature measuring structure, comprising a control valve body (1), an inner valve seat (2), a rotating groove (3), a valve seat arc groove (4), an adjusting disc (5), a heat-conducting mounting sleeve (6), and a contact temperature sensor (7), wherein the control valve body (1) is provided with an inner valve seat (2), characterized in that: The upper surface of the inner valve seat (2) is provided with a rotating groove (3), and the lower surface of the inner side of the rotating groove (3) is provided with a valve seat arc groove (4). An adjusting plate (5) is rotatably arranged inside the rotating groove (3). A heat-conducting mounting sleeve (6) is fixedly arranged on the upper surface of the adjusting plate (5). A contact temperature sensor (7) is inserted and fixed inside the heat-conducting mounting sleeve (6). A spring-loaded holding mechanism is provided at the lower part of the adjusting plate (5), and a drive mechanism with up-and-down movement and separation function is provided at the upper part of the adjusting plate (5). The elastic holding mechanism includes a pull shaft hole (201), a connecting pull shaft (202), a spring chuck (203), a sealing spring (204), and a nut (205); A pull shaft hole (201) is provided through the center of the inner lower surface of the rotating groove (3), and a connecting pull shaft (202) is fixedly provided on the lower surface of the adjusting plate (5). The connecting pull shaft (202) passes through the pull shaft hole (201) and extends into the lower part of the inner valve seat (2). A spring chuck (203) is sleeved on the outer surface of the connecting shaft (202), and a nut (205) is screwed on the outer surface of the connecting shaft (202). The nut (205) is located at the lower part of the spring chuck (203). A sealing spring (204) is sleeved and fixed on the outside of the connecting shaft (202). The sealing spring (204) is sandwiched between the spring chuck (203) and the lower surface of the inner valve seat (2). The drive mechanism includes a limiting tube (501), an internal hexagonal cavity (502), a hexagonal prism (503), a rotating optical axis (504), a sealing groove (505), a rubber ring (506), a limiting ring (507), a worm gear (508), a worm (509), a protective shell (510), an adjusting crossbar (511), and a crossbar nut (512); The limiting tube (501) is fixedly installed on the upper surface of the adjusting plate (5). The limiting tube (501) has an internal hexagonal cavity (502) inside. A hexagonal prism (503) is inserted inside the internal hexagonal cavity (502). The upper end of the hexagonal prism (503) is fixedly installed with the rotating optical axis (504). The control valve body (1) is provided with an inlet end (101) and an outlet end (102) at both ends. The surface of the regulating plate (5) is provided with a flow-limiting arc groove (513) running through it. The flow-limiting arc groove (513) corresponds to the valve seat arc groove (4). Both are arc-shaped through grooves with the same arc diameter and the same axis. A sealing gasket (514) is attached and fixed to the lower surface of the regulating plate (5). A liquid permeable groove (601) is provided through it on the surface of the heat-conducting mounting sleeve (6). The regulating plate (5) serves as a heat transfer medium.

2. The self-operated flow control valve with a temperature measuring structure according to claim 1, characterized in that: The control valve body (1) has a sealing groove (505) inside, and a rubber ring (506) is fixedly fitted inside the sealing groove (505). The rotating optical shaft (504) passes through the rubber ring (506) and is in sealing contact with it. A limit ring (507) is fixedly installed on the outer surface of the rotating optical shaft (504).

3. A self-operated flow control valve with a temperature measuring structure according to claim 2, characterized in that: The upper end of the rotating optical shaft (504) extends to the outside of the control valve body (1). A worm gear (508) is fixedly installed on the upper surface of the rotating optical shaft (504). The worm (509) meshes with the worm gear (508). A protective shell (510) is fixedly installed on the upper surface of the control valve body (1). The worm gear (508) and the worm (509) are both located inside the protective shell (510). An adjusting crossbar (511) is fixedly installed at one end of the worm (509). The adjusting crossbar (511) passes through the side wall of the protective shell (510) and extends to the outside of the protective shell (510). A crossbar cap (512) is fixedly installed at the end of the adjusting crossbar (511).

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