Integrated container valve of external pressure storage type gas fire extinguishing system
By designing an integrated container valve, the problem of valves occupying more space in the fire extinguishing system is solved, and the stable constant pressure spraying and discharge of the fire extinguishing agent is achieved, simplifying the structure and improving the spraying and discharge efficiency.
Patent Information
- Application Number
- CN202422284990.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2034-09-19
AI Technical Summary
In the existing external pressure-storage fire extinguishing system, fire extinguishing agent and high-pressure gas are stored separately, and two valves are required, which occupy a large space and is unstable in spraying.
An integrated container valve is designed, combining the valve cover, valve body, valve spool, valve seat and limiting mechanism to achieve stable spraying and discharge of high-pressure gas-driven fire extinguishing agent. Through the structural design of the valve spool and valve chamber, the number of valves is reduced and the constant pressure spraying and discharge of the agent is ensured.
The stable constant pressure spraying of fire extinguishing agent is achieved, which reduces space occupation, simplifies the structure, and improves spraying efficiency.
Smart Images
Figure CN223306358U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of fire extinguishing equipment, in particular to an integrated container valve of an external pressure storage type gas fire extinguishing system. Background Art
[0002] In the external pressure storage fire extinguishing system, the fire extinguishing agent is stored separately from the high-pressure gas. When a fire occurs, the high-pressure gas enters the fire extinguishing agent storage container through the pressure reducing valve. The fire extinguishing agent is pressed out by the pressure brought by the high-pressure gas. The pressed fire extinguishing agent enters the fire extinguishing pipe through the container valve and flows to the fire source to extinguish the fire.
[0003] However, the top of a fire extinguishing agent storage container requires two valves, a pressure relief valve and a container valve, significantly increasing space usage and wasting space. Furthermore, spraying often results in unstable pressure, making it difficult to control the spray distance. Consequently, developing a container valve that can spray agents at a constant pressure while reducing space usage is a pressing technical challenge for those skilled in the art. Utility Model Content
[0004] In view of this, the present invention aims to overcome the defects in the prior art and proposes an integrated container valve for an external pressure storage gas fire extinguishing system.
[0005] In order to achieve the above-mentioned purpose, the technical solution of the utility model is achieved as follows:
[0006] An integrated container valve for an external pressure storage gas fire extinguishing system, comprising a valve cover, a valve body, a valve core, a valve pipe, a valve seat and a limit mechanism;
[0007] The valve cover is provided with a first outlet, the valve cover is provided on the valve body, a valve cavity is provided in the valve body, a first inlet and a second outlet are provided on the side wall of the valve body, and the second inlet is provided on the valve seat;
[0008] The valve core includes a first valve core, a second valve core, and a third valve core which are arranged in sequence;
[0009] The valve pipe includes a first valve pipe, the top of which is connected to the first valve body and communicates with the first outlet on the valve cover. The bottom surface of the first valve pipe is sealed. The first valve core, the first spring, the second valve core, the second spring, and the third valve core are slidably sleeved on the outside of the first valve pipe in sequence. The side wall of the first valve pipe is provided with a channel, which is opened and closed by the up and down movement of the third valve core.
[0010] The limiting mechanism includes a first spring and a second spring. The first spring is arranged between the first valve core and the second valve core to make the first valve core press against the valve body. The second spring is arranged between the second valve core and the third valve core to make the third valve core cover the channel in the non-working state, thereby closing the second outlet.
[0011] The first valve core, the second valve core and the third valve core divide the valve cavity into five cavities from top to bottom in sequence. The first valve core divides the upper part of the valve cavity into the first valve cavity and the second valve cavity in sequence. The third cavity is the third valve cavity. The cavity between the first valve core and the second valve core is the third valve cavity. The cavity between the third valve core and the valve seat is the fourth cavity.
[0012] The first valve chamber is connected to the second valve chamber, the first inlet is connected to the second valve chamber, when the first valve core moves downward, the second valve chamber is connected to the third valve chamber, when the second valve core moves downward, the third valve chamber is connected to the second outlet, and when the third valve core moves upward, the channel is connected to the fourth valve chamber.
[0013] Furthermore, the number of channels is 1-10.
[0014] Furthermore, the number of the channels is not less than 2 and is evenly distributed along the circumference of the first valve tube.
[0015] Furthermore, the angle between the channel and the axial direction of the first valve tube is 10°-90°.
[0016] Furthermore, the valve body includes a first valve body and a second valve body, the side wall of the first valve body is provided with a first inlet, the valve cover is provided on the first valve body, the valve cover is provided with a first outlet, the second valve body is provided on the valve seat, and the side wall of the second valve body is provided with a second outlet.
[0017] Furthermore, the valve tube also includes a second valve tube, the top of the second valve tube is arranged in the valve seat, and the bottom of the second valve tube is connected to the interior of the medicine container bottle.
[0018] Furthermore, the integrated container valve also includes a sealing mechanism, which includes an elastic member. Elastic members are provided between the valve cover and the first outlet, between the first inlet and the valve body, between the valve body and the valve seat, and between the valve seat and the second inlet.
[0019] Furthermore, elastic members are provided between the first valve body and the second valve body, between the first valve body and the first valve tube, between the first valve body and the first valve core, and between the second valve body and the second valve core.
[0020] Specifically, a first elastic member is provided between the valve cover and the first outlet. The first elastic member is an annular gasket. A second elastic member is provided between the first valve body and the first valve tube. A third elastic member is provided between the first inlet and the first valve body. The third elastic member is an annular gasket. A fourth elastic member is provided between the first valve body and the first valve core, which functions as a buffer and seal. A fifth elastic member is provided between the first valve body and the second valve body, which functions as a compression and fixation. A sixth elastic member is provided between the second valve body and the second valve core, which functions as a buffer and a seal. A seventh elastic member is provided between the second valve body and the valve seat, which functions as a compression and fixation. An eighth elastic member is provided between the valve seat and the second valve tube. The function of the eighth elastic member is to fasten the second valve tube to form a whole.
[0021] Furthermore, the outer surface of the lower portion of the first valve body is provided with a mounting thread for connecting to a medicine container bottle.
[0022] Furthermore, a locking nut for fastening the first outlet and the valve cover is provided on the valve cover.
[0023] Furthermore, the bottom of the second valve tube is open on both sides along the axial direction, and the opening on the side surface of the bottom is the second inlet.
[0024] Furthermore, the cross-sectional area of the uppermost portion of the valve seat is smaller than the cross-sectional area of the lowermost portion of the third valve core.
[0025] The working principle of this utility model is as follows:
[0026] High-pressure gas enters the second valve chamber from the first inlet, bypasses the first valve core and enters the first valve chamber; the pressure in the first valve chamber increases, causing the first valve core to move downward, and the second valve chamber is connected to the third valve chamber; part of the high-pressure gas that enters the second valve chamber enters the first valve chamber, and the other part enters the third valve chamber, thereby stabilizing the first valve core at a specific position, and subsequent high-pressure gas enters the third valve chamber with a stable pressure; the gas entering the third valve chamber causes the pressure in the third valve chamber to increase, the second valve core moves downward, the second outlet is exposed, and the high-pressure gas enters the upper part of the container bottle from the second outlet; the pressure in the container bottle rises, and the agent at the bottom of the container bottle enters the second valve pipe along the second inlet and flows into the fourth valve chamber; the second spring continues to compress, the third valve core moves upward, the third channel is exposed, the fire extinguishing agent enters the first valve pipe along the third channel, and finally enters the first outlet.
[0027] When the container valve is not in operation or is closed, the high-pressure gas stops being supplied and the medicine in the bottle continues to be sprayed, causing the pressure in the bottle to decrease; the high-pressure gas stops being supplied, the first inlet is closed, and the pressure in the second valve chamber is insufficient; under the action of the first spring, the first valve core moves downward and resets, and the second valve chamber and the third valve chamber are separated again; the lack of high-pressure gas replenishment in the third valve chamber causes the pressure to decrease, and under the action of the second spring, the second valve core moves upward and resets, and the second outlet is covered; the pressure in the container bottle decreases, and the pressure in the fourth valve chamber also decreases accordingly, the third valve core moves downward and resets, the third channel is covered, and the medicine cannot continue to be sprayed.
[0028] Compared with the prior art, the present invention has the following advantages:
[0029] The integrated container valve of the external pressure storage gas fire extinguishing system described in the utility model has the functions of both a pressure reducing valve and a traditional container valve. Only one valve needs to be provided on the agent container bottle, which reduces space waste. At the same time, the integrated container of the external pressure storage gas fire extinguishing system of the utility model has the function of stable constant pressure spraying of the agent. It controls the pressure balance between the valve cavity and the valve core by providing a valve tube with a special structure to achieve stable constant pressure spraying of the fire extinguishing agent from the valve. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] Figure 1 This is a schematic diagram of the structure of the utility model;
[0031] Figure 2 This is a schematic diagram of the working state of the utility model.
[0032] Description of reference numerals:
[0033] 1. First valve body; 101. Second elastic member; 2. First valve core; 21. Fourth elastic member; 3. First valve tube; 4. Valve cover; 41. First elastic member; 5. Locking nut; 6. First outlet; 7. First inlet; 71. Third elastic member; 8. First spring; 9. Second valve core; 91. Sixth elastic member; 10. Second spring; 11. Second valve body; 111. Fifth elastic member; 12. Second outlet; 112. Seventh elastic member; 13. Third valve core; 141. Eighth elastic member; 14. Valve seat; 15. Second valve tube; 16. Second inlet; a. First valve cavity; b. Second valve cavity; c. Third valve cavity; d. Fourth valve cavity; e. First channel; f. Second channel; g. Third channel. DETAILED DESCRIPTION
[0034] Unless otherwise defined, the technical terms used in the following examples have the same meanings as those commonly understood by those skilled in the art to which this invention belongs. The experimental reagents used in the following examples, unless otherwise specified, are all conventional biochemical reagents; the experimental methods described, unless otherwise specified, are all conventional methods.
[0035] The present invention will be described in detail below with reference to the embodiments.
[0036] Reference Figure 1 、 Figure 2 As shown, the utility model relates to an integrated container valve of an external pressure storage gas fire extinguishing system, comprising a valve cover, a valve body, a valve pipe, a valve core, a valve seat limiting mechanism and a sealing mechanism.
[0037] The valve body includes a first valve body 1 and a second valve body 11 , the valve pipe includes a first valve pipe 3 and a second valve pipe 15 , and the valve core includes a first valve core 2 , a second valve core 9 and a third valve core 13 .
[0038] The limiting mechanism includes a first spring 8 and a second spring 10 .
[0039] The sealing mechanism includes a locking nut 5 , a first elastic member 41 , a second elastic member 101 , a third elastic member 71 , a fourth elastic member 21 , a fifth elastic member 111 , a sixth elastic member 91 , a seventh elastic member 112 , and an eighth elastic member 141 .
[0040] The first valve body 1 is threadedly mounted with a first inlet 7, with a circular gasket (third elastic member 71) installed at the interface for sealing. The space formed by the first valve body 1, first valve tube 3, and first valve core 2 forms the first valve chamber a. A first channel e and a second channel f are embedded within the first valve body 1, located opposite the first inlet 7. The first channel e connects to the second channel f, and several air holes are evenly distributed below the second channel f to connect the second channel f with the first valve chamber a. The first valve body 1 and the first valve tube 3 are tightly connected by threads and sealed by a sealing member (first elastic member 101). A valve cover 4 is installed above the first valve body 1 to secure the first valve body 1 in place. A locking nut 5 is installed above the valve cover 4 for securing the connection, and the connection is sealed by a circular sealing member (first elastic member 41). Simultaneously, the first valve tube 3 is tightly connected to the first outlet 6 above it.
[0041] The space between the first valve body 1, the second valve body 11, the first valve core 2, the second valve core 9 and the first valve tube 3 jointly forms a second valve chamber b. The first valve core 2, the first spring 8, the second valve core 9, the second spring 10 and the third valve core 13 are all slidably sleeved on the outside of the first valve tube 3. The first spring 8 is installed under the first valve core 2. Under the spring force of the first spring 8, the first valve core 2 rests against the lower part of the first valve body 1, thereby isolating the first valve chamber a from the second valve chamber b.
[0042] A second spring 10 is mounted below the second valve core 9, a third valve core 13 is mounted below the second spring 10, and a valve seat 14 is mounted below the third valve core 13. The valve seat 14 is threadedly connected to the second valve tube 15 and the second valve body 11. The three are fixed to each other and sealed by gaskets, namely the seventh elastic member 112 and the eighth elastic member 141. The lower side of the first valve body 1 is threadedly connected to the pharmaceutical container bottle, and second outlets 12 are embedded on both sides of the second valve body 11. Under the force of the second spring 10, the upper portion of the second valve core 9 abuts against the inner wall of the second valve body 11, covering and closing the second outlet 12, thus severing the connection between the third valve chamber c and the interior of the pharmaceutical container bottle. As a preferred embodiment, a second valve tube 15 is fixed inside the valve seat 14, and the tube body can extend into the bottom of the container valve. Since the container bottle stores liquid medicine for a long time, the liquid medicine is often at the bottom of the container bottle. In this way, when the container bottle is in working state, the medicine at the bottom of the container bottle can flow to the second valve tube 15; as a further preferred embodiment, the second valve tube 15 is open on both sides along the axial direction, and the side opening of the bottom serves as the second inlet 16. The side opening is used to increase the transmission area of the medicine in the container bottle.
[0043] The bottom surface of the first valve tube 3 is sealed at its lowest end. The space formed by the first valve tube 3, the third valve core 13, the valve seat 14, and the second valve tube 15 together forms the fourth valve chamber d. A third channel g is defined on the lower side of the first valve tube 3. The number of third channels g ranges from 1 to 10. In a preferred embodiment, the number of third channels g is no less than 2 and is evenly distributed along the circumference of the first valve tube. The angle between the third channels g and the axial direction of the first valve tube is between 10° and 90°, preferably 60°.
[0044] When in the non-working state, under the action of the spring force of the second spring 10, the lower end of the third valve core 13 rests on the valve seat 14, and the side of the third valve core 13 covers the third channel g, the third channel g is closed, and the connection between the first valve pipe 3 and the fourth valve chamber d is cut off. When in the working state, the third valve core 13 moves upward to expose the third channel g, the third channel g is opened, and the first valve pipe 3 and the fourth valve chamber d are connected.
[0045] The limiting mechanism includes a first spring 8, a second spring 10, and a valve seat 14. In the non-operating state, both the first and second springs 8 and 10 are relatively relaxed. The first spring 8 applies an upward force to the upper first valve core 2, causing its bottom to abut against the first valve body 1. The second spring 10 applies an upward force to the upper second valve core 9, causing it to abut against the inside of the second valve body 11, closing the second outlet 12 and severing the connection between the third valve chamber c and the interior of the container bottle. Simultaneously, the second spring 10 applies a downward force to the lower third valve core 13, causing its lower end to abut against the upper end of the valve seat 14, closing the third passage g and severing the connection between the first valve tube 3 and the fourth valve chamber d. In the operating state, the first valve core 2 moves downward, connecting the second and third valve chambers b and c. The second valve core 9 moves downward, opening the second outlet 12 and connecting the third valve chamber c to the interior of the container bottle. The third valve core 13 moves upward, opening the third passage g and connecting the first valve tube 3 and the fourth valve chamber d.
[0046] The limiting mechanism includes a first spring 8 and a second spring 10, and the sealing mechanism includes a locking nut 5, a first elastic member 41, a second elastic member 101, a third elastic member 71, a fourth elastic member 21, a fifth elastic member 111, a sixth elastic member 91, a seventh elastic member 112, and an eighth elastic member 141. The uppermost area of the valve seat 14 is smaller than the lowermost area of the third valve core 13, so that the high-pressure gas flowing into the fourth valve chamber d can lift the third valve core 13, causing it to move upward, thereby opening the third channel g. A valve cover 4 is installed above the first valve body 1 to fix the position of the first valve body 1, and is sealed with a second elastic member 101. A lock nut 5 is installed above the valve cover 4, and the first elastic member 41 is used for sealing and fixing. A fifth elastic member 111 is installed between the first valve body 1 and the second valve body 11. A third elastic member 71 is installed between the first valve body 1 and the first inlet 7. A seventh elastic member 112 is installed between the second valve body 11 and the valve seat 14. An eighth elastic member 141 is installed between the valve seat 14 and the second valve tube 15 to compress and tighten the connection between the two parts to form a whole. A fourth elastic member 21 is installed between the first valve core 2 and the first valve body 1, and a sixth elastic member 91 is installed between the second valve core 9 and the second valve body 11 to provide buffering and sealing functions.
[0047] High-pressure gas enters the second valve chamber b from the first inlet 7, bypasses the first valve core 22 and enters the first valve chamber a; the pressure increase in the first valve chamber a causes the first valve core 2 to move downward, and the second valve chamber b is connected to the third valve chamber c; part of the high-pressure gas that enters the second valve chamber b enters the first valve chamber a, and the other part enters the third valve chamber c, thereby stabilizing the first valve core 2 at a specific position, and subsequent high-pressure gas enters the third valve chamber c with a stable pressure; the gas entering the third valve chamber c causes the pressure in the third valve chamber c to increase, the second valve core 9 moves downward, the second outlet 12 is exposed, and the high-pressure gas enters the upper part of the container bottle from the second outlet 12; the pressure in the container bottle rises, and the agent at the bottom of the container bottle enters the second valve pipe 15 along the second inlet 16 and flows into the fourth valve chamber d; the second spring 10 continues to compress, the third valve core 13 moves upward, the third channel g is exposed, and the fire extinguishing agent enters the first valve pipe 3 along the third channel g and finally enters the first outlet 6.
[0048] When the container valve is not in operation or is closed, the high-pressure gas stops being supplied and the medicine in the bottle continues to be sprayed, causing the pressure in the bottle to decrease; the high-pressure gas stops being supplied, the first inlet 7 is closed, and the pressure in the second valve chamber b is insufficient; under the action of the first spring 8, the first valve core 2 moves down and resets, and the second valve chamber b and the third valve chamber c are separated again; the lack of high-pressure gas replenishment in the third valve chamber c causes the pressure to decrease, and under the action of the second spring 10, the second valve core 9 moves up and resets, and the second outlet 12 is covered; the pressure in the container bottle decreases, and the pressure in the fourth valve chamber d also decreases accordingly, the third valve core 13 moves down and resets, the third channel g is covered, and the medicine cannot continue to be sprayed.
[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. An integrated container valve for an external pressure storage gas fire extinguishing system, characterized by: Including valve cover, valve body, valve core, valve pipe, valve seat and limit mechanism; The valve cover is provided with a first outlet, the valve cover is provided on the valve body, a valve cavity is provided in the valve body, a first inlet and a second outlet are provided on the side wall of the valve body, and the second inlet is provided on the valve seat; The valve core includes a first valve core, a second valve core, and a third valve core which are arranged in sequence; The valve pipe includes a first valve pipe, the top of which is connected to the first valve body and communicates with the first outlet on the valve cover. The bottom surface of the first valve pipe is sealed. The first valve core, the first spring, the second valve core, the second spring, and the third valve core are slidably sleeved on the outside of the first valve pipe in sequence. The side wall of the first valve pipe is provided with a channel, which is opened and closed by the up and down movement of the third valve core. The limiting mechanism includes a first spring and a second spring. The first spring is arranged between the first valve core and the second valve core to make the first valve core press against the valve body. The second spring is arranged between the second valve core and the third valve core to make the third valve core cover the channel in the non-working state, thereby closing the second outlet. The first valve core, the second valve core and the third valve core divide the valve cavity into five cavities from top to bottom in sequence. The first valve core divides the upper part of the valve cavity into the first valve cavity and the second valve cavity in sequence. The third cavity is the third valve cavity. The cavity between the first valve core and the second valve core is the third valve cavity. The cavity between the third valve core and the valve seat is the fourth cavity. The first valve chamber is connected to the second valve chamber, the first inlet is connected to the second valve chamber, when the first valve core moves downward, the second valve chamber is connected to the third valve chamber, when the second valve core moves downward, the third valve chamber is connected to the second outlet, and when the third valve core moves upward, the channel is connected to the fourth valve chamber.
2. The integrated container valve of the external pressure storage gas fire extinguishing system according to claim 1, characterized in that: The number of channels is 1-10, and the angle between the channels and the axial direction of the first valve tube is 10°-90°; when the number of channels is not less than 2, they are evenly distributed along the circumference of the first valve tube.
3. The integrated container valve of the external pressure storage gas fire extinguishing system according to claim 1, characterized in that: The valve body includes a first valve body and a second valve body. The side wall of the first valve body is provided with a first inlet. The valve cover is provided on the first valve body and a first outlet is provided on the valve cover. The second valve body is provided on the valve seat and a second outlet is provided on the side wall of the second valve body.
4. The integrated container valve of the external pressure storage gas fire extinguishing system according to claim 1, characterized in that: The valve tube also includes a second valve tube, the top of the second valve tube is arranged in the valve seat, and the bottom of the second valve tube is communicated with the interior of the medicine container bottle.
5. The integrated container valve of the external pressure storage gas fire extinguishing system according to claim 1, characterized in that: The integrated container valve also includes a sealing mechanism, which is an elastic member. Elastic members are provided between the valve cover and the first outlet, between the first inlet and the valve body, between the valve body and the valve seat, and between the valve seat and the second inlet.
6. The integrated container valve of the external pressure storage gas fire extinguishing system according to claim 3, characterized in that: Elastic parts are arranged between the first valve body and the second valve body, between the first valve body and the first valve pipe, between the first valve body and the first valve core, and between the second valve body and the second valve core.
7. The integrated container valve of the external pressure storage gas fire extinguishing system according to claim 1, characterized in that: The outer surface of the lower portion of the first valve body is provided with a mounting thread for connecting to a medicine container bottle.
8. The integrated container valve of the external pressure storage gas fire extinguishing system according to claim 1, characterized in that: The valve cover is provided with a locking nut for fastening the first outlet and the valve cover.
9. The integrated container valve of the external pressure storage gas fire extinguishing system according to claim 4, characterized in that: The bottom of the second valve tube is open on both sides along the axial direction, and the opening on the side surface of the bottom is a second inlet.
10. The integrated container valve of the external pressure storage gas fire extinguishing system according to claim 1, characterized in that: The cross-sectional area of the uppermost portion of the valve seat is smaller than the cross-sectional area of the lowermost portion of the third valve core.