CN214617912U

CN214617912U - Condensing pressure regulating valve

Info

Publication number: CN214617912U
Application number: CN202120845857.9U
Authority: CN
Inventors: 肖春林; 肖可心
Original assignee: Changzhou Turin Controller Co ltd
Current assignee: Changzhou Turin Controller Co ltd
Priority date: 2021-04-23
Filing date: 2021-04-23
Publication date: 2021-11-05
Anticipated expiration: 2031-04-23

Abstract

The utility model relates to a condensation pressure regulating valve, which comprises a valve body, a valve port fixedly arranged in the valve body, a valve rod sleeved in the valve port, a valve cover fixedly arranged at the upper end of the valve body and a transmission sleeve fixedly arranged at the lower end of the valve body, wherein the valve rod is provided with an end cap for sealing the valve port; the upper end of the valve rod is provided with a first sealing diaphragm, the middle part of the first sealing diaphragm is arranged at the upper end of the valve rod through an upper diaphragm pressing block, and the edge of the first sealing diaphragm is clamped between the valve body and the valve cover; the lower end of the valve rod is provided with a second sealing diaphragm, the middle part of the second sealing diaphragm is arranged at the lower end of the valve rod through a lower diaphragm pressing block, and the edge of the second sealing diaphragm is clamped between the valve body and the transmission sleeve. The utility model discloses a sealed diaphragm seals, has improved sealed effect, avoids appearing the dead phenomenon of valve rod quilt card.

Description

Condensing pressure regulating valve

Technical Field

The utility model relates to a condensing pressure governing valve.

Background

Because commercial ice machine's use is more and more extensive, old-fashioned ice machine adopts the air-cooled, can appear fan noise big after long-term the use, and the heat that the condenser gived off can remain indoor in addition, gives the user uncomfortable, uses for a long time, and ambient temperature risees and will influence ice-making effect. The water cooling circulation system is used for replacing an air cooling type in an ice maker at present, so that noise is reduced greatly, the environment temperature is kept, a condensation pressure regulating valve can be arranged on a cooling water pipeline, the existing condensation pressure regulating valve comprises a valve body, a valve cavity arranged in the valve body and a valve rod for opening or closing the valve cavity, an O-shaped sealing ring is adopted between the existing valve body and the valve rod for sealing, when sealing is carried out, the sealing ring has a compression size and a compression force, after a long time, lubricating oil at the position of the valve rod can run off along with water flow, after long-time work, the compression force of the valve rod and the O-shaped ring can be greatly improved, and the phenomenon that the valve rod is blocked can occur.

SUMMERY OF THE UTILITY MODEL

The utility model provides an improve the leakproofness, avoid the dead condensation pressure governing valve of valve rod card.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the condensation pressure regulating valve comprises a valve body, a valve port fixedly arranged in the valve body, a valve rod sleeved in the valve port, a valve cover fixedly arranged at the upper end of the valve body and a transmission sleeve fixedly arranged at the lower end of the valve body, wherein a plug for sealing the valve port is arranged on the valve rod; the upper end of the valve rod is provided with a first sealing diaphragm, the middle part of the first sealing diaphragm is arranged at the upper end of the valve rod through an upper diaphragm pressing block, and the edge of the first sealing diaphragm is clamped between the valve body and the valve cover; the lower end of the valve rod is provided with a second sealing diaphragm, the middle part of the second sealing diaphragm is arranged at the lower end of the valve rod through a lower diaphragm pressing block, and the edge of the second sealing diaphragm is clamped between the valve body and the transmission sleeve.

Wherein, go up the diaphragm briquetting and pass through bolt fixed mounting in the upper end of valve rod, the bolt passes in proper order on diaphragm briquetting and the threaded connection to valve rod behind the first sealed diaphragm.

The upper end of the first sealing diaphragm is integrally formed with a first positioning ring, and the lower end of the upper diaphragm pressing block is provided with a first positioning hole matched with the first positioning ring.

Wherein, the lower extreme integrated into one piece of first sealed diaphragm has the second position circle, and the upper end of valve rod is seted up and is enclosed matched with second locating hole with the second position.

Wherein, lower diaphragm briquetting passes through bolt fixed mounting in the lower extreme of valve rod, and threaded connection is on the valve rod behind lower diaphragm briquetting and the second sealed diaphragm in proper order to the bolt.

The upper end of the second sealing diaphragm is integrally formed with a third positioning ring, and the lower end of the lower diaphragm pressing block is provided with a third positioning hole matched with the third positioning ring.

And a fourth positioning ring is integrally formed at the lower end of the second sealing diaphragm, and a fourth positioning hole matched with the fourth positioning ring is formed at the lower end of the valve rod.

Wherein, the plug is arranged as a conical body, and the upper end of the valve port is arranged as a conical hole matched with the conical body.

Wherein, the pressure regulating mechanism of adjustment valve port cracking pressure is installed to the top of valve body, and pressure regulating mechanism includes fixed mounting in the adjusting collar of valve gap upper end to and the spring holder of suit in the adjusting collar in proper order, spring and pointer seat, and threaded connection is in the adjusting bolt who sheathes in, goes up the diaphragm briquetting and supports the spring holder, and the lower extreme of spring supports and leans on in the spring holder, and the upper end supports and leans on in the pointer seat.

Wherein, the drive mechanism for driving the valve rod to move is installed below the valve body, the drive mechanism comprises a drive sleeve and a corrugated pipe with the lower end fixedly installed in the drive sleeve, and the lower diaphragm pressing block is abutted against the upper end of the corrugated pipe.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses a sealed diaphragm seals, has improved sealed effect, avoids appearing the dead phenomenon of valve rod quilt card.

Drawings

Fig. 1 is a schematic diagram of the front structure of the condensing pressure regulating valve of the present invention.

Fig. 2 is a transverse sectional view of the condensing pressure regulating valve of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments. In the following description, any concept relating to the directionality or orientation of up, down, left, right, front and rear is given with respect to the position shown in the figures being described, and thus should not be construed as particularly limiting the technical solution provided by the present invention.

As shown in fig. 1 and fig. 2, the utility model discloses condensation pressure regulating valve includes valve body 1, install valve port 13 in valve body 1, suit is in valve port 13 valve rod 3, install the pressure regulating mechanism in valve body 1 top, and install the drive mechanism in valve body 1 below, valve body 1's one end is provided with the water inlet 11 that links to each other with the cooling water, the other end is provided with the delivery port 12 of being connected with the condenser, valve port 13 intercommunication water inlet 11 and delivery port 12, valve rod 3's middle part is provided with end cap 31, end cap 31 blocks up valve port 13, make water inlet 11 and delivery port 12 not communicate, end cap 31 is lifting up under drive mechanism's effect, make valve port 13 open, make the cooling water that gets into from the water inlet through the valve port, the delivery port gets into in the condenser, cool off.

The lower end of the plug 31 is a cone 311, and the upper end of the valve port 13 is provided with a cone 22 matching with the cone 311, so that the opening is gradually enlarged when the valve rod moves upwards, thereby improving the sensitivity of the valve port.

Threaded connection has a sealing washer fixing base 32 on above-mentioned valve rod 3, this sealing washer positioning base 32 sets up in the top of end cap 31, the lower extreme fixed mounting of this sealing washer fixing base has a sealing washer 33, the mounting hole that supplies the installation of sealing washer 33 is seted up to the lower extreme of sealing washer fixing base 32, the drill way department integrated into one piece of this mounting hole has the holding ring, in order to realize the location installation of sealing washer 33, integrated into one piece has first annular bulge 17 on setting up 1 of the valve body of the upper end of valve port 13, when the end cap falls into the valve port, the lower extreme of sealing washer 7 supports and leans on in first annular bulge 17, in order to play sealed effect.

A valve cover 14 is fixedly mounted at the upper end of the valve body 1, a first sealing diaphragm 6 is arranged between the valve cover 14 and the valve body 1, the edge of the first sealing diaphragm 6 is clamped between the valve cover 14 and the valve body 1, the middle part of the first sealing diaphragm is fixedly mounted on the valve rod 3, the first sealing diaphragm 6 is fixedly mounted on the valve rod 3 through an upper diaphragm pressing block 7, the first sealing diaphragm 6 is clamped between the upper diaphragm pressing block 7 and the valve rod 3, a bolt sequentially penetrates through the upper diaphragm pressing block 7 and the first sealing diaphragm 6 and then is connected to the valve rod 3 through a thread, and an upper accommodating hole 71 for accommodating the bolt head is formed in the upper end of the upper diaphragm pressing block 7; an annular first positioning ring 61 is integrally formed at the upper end of the first sealing diaphragm 6, an annular second positioning ring 62 is integrally formed at the lower end of the first sealing diaphragm 6, a first positioning hole 72 matched with the first positioning ring 61 is formed at the lower end of the upper diaphragm pressing block 7, and a second positioning hole 34 matched with the second positioning ring 62 is formed at the upper end of the valve rod 3 so as to realize the positioning installation of the first sealing diaphragm; the upper end surface of the valve body 1 is integrally formed with a second annular bulge 15, and the second annular bulge 15 abuts against the first sealing diaphragm 6, so that the sealing performance is improved.

The pressure regulating mechanism comprises an adjusting sleeve 41 fixedly arranged above the valve cover 14, a spring seat 42, a spring 43, a pointer seat 44 and an adjusting bolt 45 which are sequentially sleeved in the adjusting sleeve 41 from bottom to top, wherein the upper end of the upper diaphragm pressing block 7 abuts against the spring seat 42, the lower end of the spring 43 abuts against the spring seat 42, the upper end of the spring 43 abuts against the pointer seat 44, the middle part of the pointer seat 44 is provided with an internal thread in threaded connection with the adjusting bolt 45, and the middle part of the upper end of the adjusting sleeve 41 is provided with an opening 414 for exposing the head of the adjusting bolt 45, so that a worker can operate the adjusting bolt to adjust the initial pressure of the spring, namely the pressure for opening the valve port; the head of the adjusting bolt 45 is provided with a cross groove, a straight groove or a flat position so as to facilitate the operation of workers. During adjustment, the adjusting bolt is rotated clockwise, so that the pointer seat 44 is forced to move downwards, the spring is further compressed, the pressure for opening the valve port is increased, and conversely, the pressure for opening the valve port is reduced.

The pointer seat 44 is integrally formed with a pointer 441, the outer wall of the adjusting sleeve 41 is provided with a sliding groove 411 for accommodating the pointer 441 to slide up and down, the outer wall of the adjusting sleeve 41 is provided with scales and pressure values, the scales and the pressure values are arranged near the sliding groove 411, when the pointer points to a certain value, the pressure value of the valve port opening is the value, so that a worker can visually and clearly observe the opening pressure value, the pressure regulating valve can operate under the most economical condition, and the worker can quickly and accurately regulate the value next time; the scale and the pressure value can be directly carved on the outer wall of the adjusting sleeve, or carved on the label, and then the label is fixedly installed on the outer wall of the adjusting sleeve.

The upper end of the spring seat 42 is coaxially provided with a first positioning column 421, the lower end of the spring is sleeved on the first positioning column 421 for positioning and mounting the lower end of the spring, the lower end of the pointer seat 44 is coaxially provided with a second positioning column 442, and the upper end of the spring is sleeved on the second positioning column 442 for positioning and mounting the upper end of the spring.

Above-mentioned drive mechanism includes fixed mounting in the drive sleeve 51 of valve body 1 below and suit bellows 52 in drive sleeve 51, bellows 52 connects the thermal bulb, the thermal bulb sets up in the condenser, the upper end supports and leans on in valve rod 3 lower extreme, when the internal pressure of bellows (condenser temperature rising promptly) is greater than the initial pressure of spring (the cracking pressure of valve port promptly), this bellows up extension, thereby promote the valve stem up-movement, open the valve port, make during the cooling water gets into the condenser, the valve stem continues to promote the spring holder up-movement this moment, further compression spring, when spring force is greater than bellows internal pressure, the valve rod moves down under the effect of spring force, until closing the valve port.

A second sealing diaphragm 8 is arranged between the transmission sleeve 51 and the valve body 1, the middle part of the second sealing diaphragm 8 is fixedly arranged at the lower end of the valve rod 3 through a lower diaphragm pressing block 9, the second sealing diaphragm 8 is clamped between the transmission sleeve 51 and the valve body 1 through a bolt, the bolt penetrates through the lower diaphragm pressing block and the second sealing diaphragm and then is in threaded connection with the valve rod, the fixed installation of the second sealing diaphragm is realized, and the lower end of the lower diaphragm pressing block 9 is abutted against the corrugated pipe; the upper end of the lower film pressing block 9 is integrally formed with a lower accommodating hole 91 for accommodating the head of the bolt; a third positioning ring 81 is integrally formed at the upper end of the second sealing diaphragm 8, a fourth positioning ring 82 is integrally formed at the lower end of the second sealing diaphragm 8, a third positioning hole 92 matched with the third positioning ring 81 is formed at the lower end of the lower diaphragm pressing block 9, and a fourth positioning hole 35 matched with the fourth positioning ring 82 is formed at the lower end of the valve rod 3, so that the second sealing diaphragm is positioned and installed; the lower end of the valve body 1 is integrally formed with a third annular bulge 16, and the third annular bulge 16 abuts against the second sealing membrane to improve the sealing performance.

The corrugated pipe has water drop-shaped wave forms, and the grooves between two adjacent wave forms are also water drop-shaped, so that the corrugated pipe has better elongation compensation capability and higher bearing capability.

A limiting member 53 for limiting the bellows 51 is fixedly mounted at the upper end of the driving sleeve 51, and the limiting member 53 is screwed on the driving sleeve 51 to limit the extension length of the bellows.

Finally, it should be noted that: the above embodiments are merely illustrative of the technical solutions of the present invention, and not limitative thereof; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A condensing pressure regulating valve is characterized in that: the condensation pressure regulating valve comprises a valve body (1), a valve port (13) arranged in the valve body (1), a valve rod (3) sleeved in the valve port (13), a valve cover (14) fixedly installed at the upper end of the valve body (1), and a transmission sleeve (51) fixedly installed at the lower end of the valve body (1), wherein a plug (31) for sealing the valve port (13) is arranged on the valve rod (3); a first sealing diaphragm (6) is mounted at the upper end of the valve rod (3), the middle part of the first sealing diaphragm (6) is mounted at the upper end of the valve rod (3) through an upper diaphragm pressing block (7), and the edge of the first sealing diaphragm (6) is clamped between the valve body (1) and the valve cover (14); a second sealing diaphragm (8) is installed at the lower end of the valve rod (3), the middle of the second sealing diaphragm (8) is installed at the lower end of the valve rod (3) through a lower diaphragm pressing block (9), and the edge of the second sealing diaphragm (8) is clamped between the valve body (1) and the transmission sleeve (51).

2. The condensation pressure regulating valve according to claim 1, wherein said upper diaphragm pressing block (7) is fixedly mounted on the upper end of said valve stem (3) by means of a bolt, said bolt is threaded onto said valve stem (3) after passing through said upper diaphragm pressing block (7) and said first sealing diaphragm (6) in sequence.

3. The condensation pressure regulating valve according to claim 2, wherein a first positioning ring (61) is integrally formed at the upper end of the first sealing diaphragm (6), and a first positioning hole (72) matched with the first positioning ring (61) is formed at the lower end of the upper diaphragm pressing block (7).

4. The condensation pressure regulating valve according to claim 2, wherein a second positioning ring (62) is integrally formed at the lower end of the first sealing diaphragm (6), and a second positioning hole (34) matched with the second positioning ring (62) is formed at the upper end of the valve rod (3).

5. The condensation pressure regulating valve according to claim 1, wherein said lower diaphragm pressing block (9) is fixedly mounted to the lower end of said valve stem (3) by means of a bolt, and said bolt is threaded onto said valve stem (3) after passing through said lower diaphragm pressing block (9) and said second sealing diaphragm (8) in sequence.

6. The condensation pressure regulating valve according to claim 5, wherein a third positioning ring (81) is integrally formed at the upper end of the second sealing diaphragm (8), and a third positioning hole (92) matched with the third positioning ring (81) is formed at the lower end of the lower diaphragm pressing block (9).

7. The condensation pressure regulating valve according to claim 5, wherein a fourth positioning ring (82) is integrally formed at the lower end of the second sealing diaphragm (8), and a fourth positioning hole (35) matched with the fourth positioning ring (82) is formed at the lower end of the valve rod (3).

8. The condensing pressure regulating valve according to claim 1, wherein said plug (31) is formed as a cone, and the upper end of said valve port (13) is formed as a tapered hole fitted with said cone.

9. The condensation pressure regulating valve according to claim 1, wherein a pressure regulating mechanism for regulating the opening pressure of the valve port is mounted above the valve body (1), the pressure regulating mechanism comprises a regulating sleeve (41) fixedly mounted at the upper end of the valve cover (14), a spring seat (42), a spring (43), a pointer seat (44) and a regulating bolt (45) in threaded connection with the regulating sleeve (41), the spring seat (42) is abutted by the upper diaphragm pressing block (7), the spring seat (42) is abutted by the lower end of the spring (43), and the pointer seat (44) is abutted by the upper end of the spring (43).

10. The condensation pressure regulating valve according to claim 1, wherein a transmission mechanism for driving the valve rod (3) to move is installed below the valve body (1), the transmission mechanism comprises a transmission sleeve (51) and a corrugated pipe (52) with the lower end fixedly installed in the transmission sleeve (51), and the lower diaphragm pressing block (9) abuts against the upper end of the corrugated pipe (52).