CN206818266U - A kind of anti-heating water backflow water meter - Google Patents
A kind of anti-heating water backflow water meter Download PDFInfo
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- CN206818266U CN206818266U CN201720454741.6U CN201720454741U CN206818266U CN 206818266 U CN206818266 U CN 206818266U CN 201720454741 U CN201720454741 U CN 201720454741U CN 206818266 U CN206818266 U CN 206818266U
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Abstract
The utility model belongs to water meter engineering device technique field, and in particular to a kind of anti-heating water backflow water meter.The anti-heating water backflow water meter of the utility model, including water meter case, water inlet, delivery port, counter volume, impeller box, one temperature-sensing valve that can be closed and can be opened in cold water in radiator hot-water is set in water meter case delivery port, the temperature-sensing valve coordinates with the liquid-tight envelope of delivery port endoporus to be assembled.The utility model is when water meter normally flows through cold water, low boiling point working medium such as wax in the temperature-sensitive shell of temperature-sensing valve condenses into solid-state, its volume contraction, and rubber valve opens temperature-sensitive shell inflow entrance under hydraulic pressure effect, big end cavity communicates with flow export and inflow entrance, ensures that cold water normally flows through water meter；When radiator hot-water flows through temperature-sensing valve, the low boiling point working medium such as wax in temperature-sensitive shell becomes liquid, the increase of its volume, rubber valve is promoted to be displaced outwardly, until sealing up temperature-sensitive shell inflow entrance, prevent the hot water in caliduct from flowing through water meter, avoid radiator hot-water that mixed flow occurs with running water.
Description
Technical field
A kind of anti-heating water backflow water meter is the utility model is related to, belongs to water meter engineering device technique field.
Background technology
In the prior art, cold water type water meter is generally used for 0.1 ~ 30 DEG C of temperature environment, and the hot water more than 30 DEG C can cause water
The deformation or damage of the plastic parts such as table impeller, cause water meter measurement inaccurate.
In the house of supply heating water and installation cold water type water meter, after the heat exchanger of heating water is installed and used, if
The pipeline of heat exchanger is ruptured, then the heating water outside pipeline can directly be contacted by the running water in water meter and pipeline.By
Hydraulic pressure in caliduct is generally higher than the hydraulic pressure of running water in flowing through, and the heating water of injection goes back to the water top of water supply pipe,
And more laterals are sealed in, the water in caliduct can continuously flow through water meter, cause the hot water in caliduct
Mixed flow occurs with running water, causes water pollution.
Utility model content
The defects of to overcome existing cold water type water meter to exist, the technical problems to be solved in the utility model are to provide a kind of anti-
Heating water flow back water meter, enable the water meter effectively to prevent the hot water in caliduct from flowing through water meter, avoid radiator hot-water with originally
Mixed flow occurs for water.
In order to solve the above technical problems, the technical solution of the utility model is：
A kind of anti-heating water backflow water meter, including water meter case, water inlet, delivery port, counter volume, impeller box,
In water meter case delivery port, one temperature-sensing valve that can be closed and can be opened in cold water in radiator hot-water, the temperature-sensing valve are set
Envelope liquid-tight with delivery port endoporus coordinates assembling.
Further, described anti-heating water backflow water meter, the temperature-sensing valve include a temperature-sensitive shell for experiencing temperature and
One rubber valve that can be slided in its endoporus, rubber valve outer surface coordinate with the liquid-tight envelope of temperature-sensitive shell inner surface, temperature-sensitive shell tool
There are an inflow entrance and at least one flow export, temperature-sensitive shell outer surface has a step, and big end is liquid-tight with the delivery port endoporus
Envelope coordinates, big to hold cavity to be communicated with flow export and inflow entrance, and small end forms flow channels, flow export and excessively stream with delivery port endoporus
Passage communicates, and rubber valve one end forms the confined space full of low-boiling point liquid with temperature-sensitive shell blind end, and the rubber valve other end is close
Front cover coordinates with temperature-sensitive shell inflow entrance sealing surface liquid tight contact.
Further, described anti-heating water backflow water meter, described rubber valve one end is provided with blind hole, is full of in the blind hole
Low-boiling point liquid.
Further, described anti-heating water backflow water meter, the sealing surface of the temperature-sensitive shell inflow entrance are inner conical, institute
It is the cylindrical taper being engaged with the inner conical of inflow entrance to state rubber valve other end sealing surface.
Further, described anti-heating water backflow water meter, the rubber valve other end sealing surface is circular arc.
Further, described anti-heating water backflow water meter, the low-boiling point liquid is wax.
When wax solidifies or melts, the rubber valve other end opens or closes temperature-sensitive shell inflow entrance.
The beneficial effects of the utility model are：Delivery port position in cold water type water meter case sets a temperature-sensing valve,
The temperature-sensing valve is closed automatically when running into radiator hot-water, avoids hot water top from returning cold water；When water meter flows through cold water the temperature-sensing valve from
It is dynamic to open, ensure that cold water normally flows through water meter.When water meter normally flows through cold water, the low boiling point working medium such as wax in the temperature-sensitive shell
Solid-state is condensed into, its volume contraction, rubber valve opens temperature-sensitive shell inflow entrance under hydraulic pressure effect, big to hold cavity and flow export and stream
Entrance communicates, and ensures that cold water normally flows through water meter；When radiator hot-water flows through temperature-sensing valve, the low boiling point working medium in the temperature-sensitive shell
As wax becomes liquid, the increase of its volume, rubber valve is promoted to be displaced outwardly, until sealing up temperature-sensitive shell inflow entrance, so as to prevent warming up
Hot water in feed channel flows through water meter, avoids radiator hot-water that mixed flow occurs with running water.
Brief description of the drawings
Fig. 1 is the enlarged partial sectional view of the utility model anti-heating water backflow water meter water outlet, at the rubber valve
In open mode；
Fig. 2 is the enlarged partial sectional view of the utility model anti-heating water backflow water meter water outlet, at the rubber valve
In closed mode；
Fig. 3 is the temperature-sensing valve sectional view of the anti-heating water backflow water meter of the utility model.
In figure：1st, water meter case；2nd, delivery port；3rd, temperature-sensing valve；4th, temperature-sensitive shell；5th, rubber valve；6th, inflow entrance；7th, flow out
Mouthful；8th, big end；9th, cavity is held greatly；10th, flow channels；11st, low-boiling point liquid；12nd, rubber valve other end sealing surface；13rd, flow into
Mouth sealing surface；14th, blind hole.
Embodiment
With reference to the accompanying drawings and detailed description to the further details of explanation of the utility model.
With reference to Fig. 1-Fig. 2, the utility model anti-heating water backflow water meter, including water meter case 1, water inlet, delivery port 2,
Counter volume, impeller box, set one can close in radiator hot-water and can be beaten in cold water in water meter case delivery port 2
The temperature-sensing valve 3 opened, temperature-sensing valve 3 coordinates with the liquid-tight envelope of the endoporus of delivery port 2 to be assembled.Temperature-sensing valve 3 includes a temperature-sensitive for experiencing temperature
Shell 4 and a rubber valve 5 that can be slided in its endoporus, the outer surface of rubber valve 5 coordinate with the liquid-tight envelope of the inner surface of temperature-sensitive shell 4,
Temperature-sensitive shell 4 has an inflow entrance 6 and at least one flow export 7, and the outer surface of temperature-sensitive shell 4 has a step, big end 8 and delivery port
The liquid-tight envelope of 2 endoporus coordinates, big to hold cavity 9 to be communicated with flow export 7 and inflow entrance 6, and small end forms flow channels with the endoporus of delivery port 2
10, flow export 7 communicates with flow channels 10, and the one end of rubber valve 5 forms close full of low-boiling point liquid 11 with the blind end of temperature-sensitive shell 4
Space is closed, the other end sealing surface 12 of rubber valve 5 coordinates with the liquid tight contact of 4 inflow entrance of temperature-sensitive shell, 6 sealing surface 13.
In the present embodiment, described one end of rubber valve 5 is provided with blind hole 14, and low-boiling point liquid 11 is also filled with blind hole 14.Institute
It is wax to state low-boiling point liquid 11.When promoting rubber valve 5 to be displaced outwardly, it can make it that its outer surface and the inner surface of temperature-sensitive shell 4 are more preferable
Liquid-tight envelope.
When water meter flows through cold water shown in Fig. 1, temperature-sensing valve 1 is in open mode；Water meter shown in Fig. 2 flows through radiator hot-water cold water
When, temperature-sensing valve 1 is closed.
In the present embodiment, the sealing surface 13 of the inflow entrance 6 of temperature-sensitive shell 4 is inner conical, the other end sealing surface 12 of rubber valve 5
For the cylindrical taper being engaged with the inner conical of inflow entrance 6.Certainly, rubber valve 5 other end sealing surface 12 and match therewith
The sealing surface shape of the inflow entrance 6 of temperature-sensitive shell 4 can also be end face seal.
With reference to Fig. 3, in other embodiment of the present utility model, the other end sealing surface 12 of rubber valve 5 can also be
Circular arc.
Described above is a kind of embodiment of the present utility model, it is noted that to the ordinary skill people of this area
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also regard
For the scope of protection of the utility model.
Claims (6)
1. a kind of anti-heating water backflow water meter, including water meter case（1）, water inlet, delivery port（2）, counter volume, impeller
Box, it is characterised in that：In water meter case delivery port（2）What setting one can be closed and can opened in cold water in radiator hot-water
Temperature-sensing valve（3）, the temperature-sensing valve（3）With delivery port（2）The liquid-tight envelope of endoporus coordinates assembling.
2. anti-heating water backflow water meter according to claim 1, it is characterised in that：The temperature-sensing valve（3）Including a sense
By the temperature-sensitive shell of temperature（4）With a rubber valve that can be slided in its endoporus（5）, rubber valve（5）Outer surface and temperature-sensitive shell
（4）The liquid-tight envelope of inner surface coordinates, temperature-sensitive shell（4）With an inflow entrance（6）With at least one flow export（7）, temperature-sensitive shell（4）Outside
Surface has a step, big end（8）With the delivery port（2）The liquid-tight envelope of endoporus coordinates, and holds cavity greatly（9）With flow export（7）With
Inflow entrance（6）Communicate, small end and delivery port（2）Endoporus forms flow channels（10）, flow export（7）With flow channels（10）Phase
It is logical, rubber valve（5）One end and temperature-sensitive shell（4）Blind end, which is formed, is full of low-boiling point liquid（11）Confined space, rubber valve（5）Separately
One end sealing surface（12）With temperature-sensitive shell（4）Inflow entrance（6）Sealing surface（13）Liquid tight contact coordinates.
3. anti-heating water backflow water meter according to claim 2, it is characterised in that：The rubber valve（5）One end is provided with blind
Hole（14）, the blind hole（14）It is interior to be full of low-boiling point liquid（11）.
4. anti-heating water backflow water meter according to claim 2, it is characterised in that：The temperature-sensitive shell（4）Inflow entrance（6）'s
Sealing surface（13）For inner conical, the rubber valve（5）Other end sealing surface（12）For with inflow entrance（6）Inner conical sealing
Face（13）The cylindrical taper being engaged.
5. anti-heating water backflow water meter according to claim 2, it is characterised in that：The rubber valve（5）The other end seals
Face（12）For circular arc.
6. according to any described anti-heating water backflow water meters of claim 2-5, it is characterised in that：The low-boiling point liquid（11）
For wax.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720454741.6U CN206818266U (en) | 2017-04-27 | 2017-04-27 | A kind of anti-heating water backflow water meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720454741.6U CN206818266U (en) | 2017-04-27 | 2017-04-27 | A kind of anti-heating water backflow water meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206818266U true CN206818266U (en) | 2017-12-29 |
Family
ID=60754877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720454741.6U Active CN206818266U (en) | 2017-04-27 | 2017-04-27 | A kind of anti-heating water backflow water meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206818266U (en) |
-
2017
- 2017-04-27 CN CN201720454741.6U patent/CN206818266U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20230808 Granted publication date: 20171229 |